Thermal Testing Measurements Report Rev 00, ICN 00

TDR-MGR-HS-000002

September 2004 
 
1. PURPOSE 
The purpose of this technical report is to address deficiencies in ANL-NBS-HS-000041, Thermal 
Testing Measurements Report (BSC 2002 [DIRS 160771]). These deficiencies were documented 
in audit report BQAP-BSC-03-02 (BSC 2003 [DIRS 170669]); Deficiency Reports BSC(B)-03-
D-043 (Krisha 2002 [DIRS 170840]) and BSC(B)-03-D-045 (BSC 2003 [DIRS 170670]); and 
Condition Reports 165 (BSC 2003 [DIRS 170671]), 288 (BSC 2003 [DIRS 170672]), 657 (BSC 
2003 [DIRS 170862]) and 1936 (BSC 2004 [DIRS 170857]). The identified deficiencies 
included: 
 
Data tracking numbers (DTNs) that were not populated with data in the Technical Data 
Management System (TDMS) 
 
Software discussed in the report, but not addressed in Section 3 (Software) of the report 
 
Unqualified input sources to product output DTNs 
 
Insufficient or excessive numbers of data sources listed in the report for certain product 
output DTNs 
 
Various errors in Technical Data Information Forms (TDIFs) 
 
Basis for data selection not discussed 
Full details of the deficiencies can be found in the audit, deficiency, and condition reports 
referenced above. 
This report is written in accordance with LP-3.11Q-BSC, Technical Reports, and Technical 
Work Plan for: Near-Field Environment and Transport Thermal Properties Model and Analysis 
Reports Integration (BSC 2004 [DIRS 171708]). The technical work plan (TWP) states that no 
acceptance criteria from Yucca Mountain Review Plan, Final Report (NRC 2003 [DIRS 
163274]) are applicable to this report. This report deviates from the TWP in that several of 
Yucca Mountain Review Plan, Final Report (NRC 2003 [DIRS 163274]) acceptance criteria are 
addressed herein. It should also be noted that this technical report is a summarization of field 
thermal testing data. Although the data from this summarization have been referenced in other 
analysis and model reports for purposes such as model validation, the discussions in this report 
do not have a direct bearing on repository performance. With the exception of a new section on 
introduced materials in Drift Scale Test (DST) waters, no new data from the DST has been added 
which post-date the DST data included in ANL-NBS-HS-000041, Thermal Testing 
Measurements Report (BSC 2002 [DIRS 160771]). 
The original product output DTNs from ANL-NBS-HS-000041, Thermal Testing Measurements 
Report (BSC 2002 [DIRS 160771]), have been retained unless supersession was necessary. In 
some cases, the data in the original product output DTN was found to be in error, and the source 
Input DTNs were used in lieu of the original product output DTNs (see Section 4). The status of 
the original product output DTNs has been changed to non-product output and their qualification 
status has been changed to reflect the qualification status of their source Input DTNs (i.e., an 

unqualified source DTN would make the original product output DTN unqualified as well). The 
same product output DTN numbers from ANL-NBS-HS-000041, Thermal Testing 
Measurements Report (BSC 2002 [DIRS 160771]), have been retained for the most part in the 
present report. These DTNs are characterized as Summary DTNs in this report since their 
product output status has been removed. 
The purpose of ANL-NBS-HS-000041, Thermal Testing Measurements Report (BSC 2002 
[DIRS 160771]) was to document, in one report, the comprehensive set of measurements taken 
within the Yucca Mountain Project (YMP) Thermal Testing Program since its inception in 1996. 
This technical report substantially retains the documentation and discussion from ANL-NBS-HS-
000041, Thermal Testing Measurements Report (BSC 2002 [DIRS 160771]) 
Since either detailed level 3 and level 4 reports exist or the measurements are straightforward, 
only brief discussions are provided for each data set. These brief discussions for different data 
sets are intended to impart a clear sense of applicability of data, so that they will be used 
properly within the context of measurement uncertainty. As appropriate, thermal testing data 
currently residing in the TDMS were reorganized and reformatted into Summary DTNs. These 
Summary DTNs provide a readily usable data structure, including graphical displays and 
comprehensive spreadsheets. In some cases, there was no need to reformat or restructure Input 
DTNs, so they remained unchanged. Although the DTNs in this report are characterized as Input 
DTNs and Summary DTNs, all DTNs discussed are in fact input to this report. 
Thermal testing measurement data come from the characterization (preheating/baseline and 
postcooling) and testing (heating and cooling) phases of the Large Block Test (LBT), the Single 
Heater Test (SHT), and the Drift Scale Test (DST). Since the LBT and SHT are completed, all 
phases of those two tests are addressed. DST measurements addressed in this report include 
preheating and the entire four-year heating phase, which ended January 14, 2002. The objective 
of the YMP Thermal Testing Program is to gain a more in-depth understanding of the coupled 
thermal (T), hydrological (H), mechanical (M), and chemical (C) processes. Satisfaction of this 
objective will ultimately lead to better understanding of how thermally driven coupled processes 
would affect the performance of the waste packages and the flow and transport of radionuclides 
(and consequently, the performance of the repository). The YMP Thermal Testing Program was 
initially described in Site Characterization Plan Yucca Mountain Site, Nevada Research and 
Development Area, Nevada (DOE 1988 [DIRS 100282]). The plan identified seven types of 
tests. In 1994, the YMP Thermal Testing Program was reevaluated, resulting in two phases of 
test planning. The first phase, documented in the report entitled In-Situ Thermal Testing 
Program Strategy (DOE 1995 [DIRS 130104]), presented five types of in situ thermal tests, 
including the LBT and the SHT. The second phase of test planning, documented in the report 
entitled Updated In Situ Thermal Testing Program Strategy (CRWMS M&O 1997 
[DIRS 111106]), was a more fundamental approach that included consideration of thermally 
driven coupled processes and related parameters. Additional scope included laboratory tests, 
analogues, modeling, performance confirmation monitoring, and a restructured suite of in situ 
thermal tests. The DST was developed from this second phase of test consolidation. 
The LBT, located in Fran Ridge, southeast of Yucca Mountain, is described in Large Block Test 
Final Report (Lin et al. 2001 [DIRS 159069]). The heating phase of the LBT started in February 
1997 and continued until March 1998, at which time the heaters were turned off. Cooling-phase 

measurements at the LBT were made until September 1998. Upon completion of the postcooling 
characterization of the LBT block, a final report was prepared (Lin et al. 2001 [DIRS 159069]). 
The SHT, located in Alcove No. 5 of the Exploratory Studies Facility (ESF), is described in 
Characterization of the ESF Thermal Test Area (CRWMS M&O 1996 [DIRS 101428]), Single 
Heater Test Status Report (CRWMS M&O 1997 [DIRS 101540]), and Single Heater Test Final 
Report (CRWMS M&O 1999 [DIRS 129261]). The heating phase of the SHT started in August 
1996 and continued for 275 days until May 1997. The cooling phase continued until January 
1998, at which time postcooling characterization of the test block commenced. Laboratory tests, 
modeling, analyses, and documentation were completed, and the final report (CRWMS M&O 
1999 [DIRS 129261]) was submitted to the U.S. Department of Energy (DOE) in October 1999. 
The DST, also located in Alcove No. 5 of the ESF, is described in the following reports: Drift 
Scale Test Design and Forecast Results (CRWMS M&O 1997 [DIRS 146917]) and Drift Scale 
Test As-Built Report (CRWMS M&O 1998 [DIRS 111115]). The results from characterizing the 
test block are contained in Ambient Characterization of the Drift Scale Test Block (CRWMS 
M&O 1997 [DIRS 101539]). Early results of the DST are discussed in Drift Scale Test Progress 
Report No. 1 (CRWMS M&O 1998 [DIRS 108306]). The heating phase of the DST started in 
December 1997 and lasted approximately four years until January 14, 2002. DST measurements 
through the entire four-year heating phase are reported in this technical report. Discussion of the 
thermal testing measurements in this report is organized first under the heading of the three tests: 
LBT, SHT, and DST; and then under the four processes: T, H, M, and C. Miscellaneous 
measurements and observations are also discussed. Although the list of measurement types is 
comprehensive, it is neither practical (because of finite report length) nor necessary to 
thoroughly discuss all data sets. For example, the DST measured temperatures come from nearly 
2,700 thermal sensors distributed throughout the test block and collected hourly, resulting in 
approximately 100 million measurements. Therefore, as appropriate for each measurement type, 
only a representative discussion of the test data behavior is presented. Readers are referred to 
Summary DTNs for comprehensive data sets that include complementary graphics. 
The depth of the following discussions concerning the 12 basic measurement groups 
(three thermal tests and four processes) is dictated by their respective data characteristics. In 
general, discussions of thermal and mechanical measurements tend to be comparatively short, 
although the respective Summary DTNs contain comparatively large amounts of data. This 
condition reflects the inherent simplicity or straightforwardness of temperature and displacement 
measurements that are recorded frequently (hourly) on a data acquisition system. Conversely, 
discussions of hydrological and chemical measurements tend to be lengthier, while their 
Summary DTNs are comparatively small. The smaller output data sets result from 
measurements collected comparatively infrequently (monthly or longer) on a nonintegrated data 
acquisition system. The more lengthy discussion in the chemical measurements sections relates 
to sampling procedures that have great relevance to the data collected. Also, in certain 
hydrological measurements, detailed explanations are needed for the complex data reduction that 
occurs as the data are transformed from Input DTN data into more useful and functional 
Summary DTN data. Furthermore, since several level 3, level 4, and other technical documents 
exist (see prior comments on LBT, SHT, and DST reports), discussion of the measurement 
process was intentionally limited. More specifically, discussion of calibration, measurement 
technique, and scientific notebook entries, for the most part, was not included in this report. 

Uncertainty associated with most measurements is also discussed. These discussions are 
restricted to actual measurements and data reduction. If quantifiable uncertainties were cited, 
then either references to equipment manufacturers specifications were provided or they were 
referred to as estimates. Standard error analyses (mean and standard deviation) were provided 
for applicable measurements such as repetitive measurements of laboratory or field parameters. 
Test measurements of a response for a specific location and time are not applicable for standard 
error analyses. Additional information on measurement uncertainties can be located via 
directions in DTNs cited in the footnotes of Tables 4-1, 4-2, and 4-3. This information, among 
other things, provides detailed discussions of scientific notebooks and calibration relationships 
relevant to uncertainties of thermal testing measurements. Also included in this report are 
summaries of three white papers involving in-depth investigations of unexpected or unusual 
behavior. The summaries are in Sections 6.3.2.6and 6.3.4.5. 
The Technical Work Plan for: Unsaturated Zone Sections of License Application Chapters 8 and 
12 (BSC 2002 [DIRS 159051]) contained the work packages for the DST and the test was 
conducted in accordance with Test Plan for: Drift Scale Test (BSC 2002 [DIRS 158190]). 
The report is organized as follows: Section 2 addresses quality assurance. Section 3 discusses 
the use of software. Section 4 provides a tabulation of Input DTNs. Assumptions are 
documented in Section 5. Discussion of the thermal test measurements for each of the three 
thermal tests is provided in Section 6. A summary is provided in Section 7, and references are 
presented in Section 8. 

2. QUALITY ASSURANCE 
2.1 PROCEDURAL COMPLIANCE 
The activities documented in this technical report are subject to the requirements of the U.S. 
DOE Office of Civilian Radioactive Waste Management (OCRWM) Quality Assurance 
Requirements and Description (DOE 2004 [DIRS 171539]). This report was prepared in 
accordance with LP-3.11Q-BSC, Technical Reports. The summarization of thermal test 
measurements previously reported in ANL-NBS-HS-000041, Thermal Testing Measurements 
Report (BSC 2002 [DIRS 160771]), is consistent with the direction delineated in Test Plan for: 
Drift Scale Test (BSC 2002 [DIRS 158190]). The activities to address deficiencies in ANL-
NBS-HS-000041, Thermal Testing Measurements Report (BSC 2002 [DIRS 160771]), are 
delineated in Technical Work Plan for: Near-Field Environment and Transport Thermal 
Properties Model and Analysis Reports Integration (BSC 2004 [DIRS 171708]). Technical 
work plans were prepared in accordance with AP-2.27Q, Planning for Science Activities. The 
Drift Scale test plan was prepared in accordance with AP-SIII.7Q, Scientific Investigation 
Laboratory and Field Testing. The document identifier for this technical report was obtained as 
per AP-6.1Q, Controlled Documents. 
Input DTNs were documented in accordance with AP-3.15Q, Managing Technical Product 
Inputs. Data submittals to the TDMS were done in accordance with AP-SIII.3Q, Submittal and 
Incorporation of Data to the Technical Data Management System. Software, as applicable, was 
obtained, controlled, and documented as per LP-SI.11Q-BSC, Software Management. Process 
controls on specific uses of electronically stored information, including information residing in 
an electronic information management system or on electronic media, were evaluated as per 
AP-SV.1Q, Control of the Electronic Management of Information. 
The methods used for control of electronic management of data were in accordance with those 
specified in Technical Work Plan for: Near-Field Environment and Transport Thermal 
Properties Model and Analysis Reports Integration (BSC 2004 [DIRS 171708]). Electronic 
management of information was also controlled under the following organization-specific 
procedures: YMP-LBNL-QIP-SV.0, Management of YMP-LBNL Electronic Data for Lawrence 
Berkeley National Laboratory (LBNL); 033-YMP-QP-3.8, Control of the Electronic 
Management of Data for Lawrence Livermore National Laboratory (LLNL); and LANL-YMP-
QP-S5.01, Electronic Information Management for Los Alamos National Laboratory (LANL). 
The remainder of this section is provided for informational purposes and discusses the quality 
assurance controls for activities supporting ANL-NBS-HS-000041, Thermal Testing 
Measurements Report (BSC 2002 [DIRS 160771]). 
For work done by the U. S. Geological Survey (USGS), four electronic databases on work 
stations/personal computers were used by the USGS Environmental Science Team. The 
databases were backed up on a fixed schedule and whenever blocks of new data were added. 
Backed-up files were stored on fixed and removable magnetic media and removable optical 
media. Backup media were kept in secure areas remote from the workstations/personal 
computers. Backup was also provided by hard copies of original raw data and by laboratory 
notebooks. Data were subjected to multiple checking steps. A final check was attained by 

retrieving data from the database and physically checking it against the original input records. 
Errors were corrected and the records were rechecked after correction. Records of this checking 
process were maintained. Data packages submitted to the TDMS were prepared by outputting 
the data from the databases, commonly through spreadsheets. For work done by Sandia National 
Laboratories (SNL), the requirements of AP-SV.1Q were met by the following measures: 
Computers used for processing and storing information were password-protected. All files were 
backed up on magnetic media monthly or more often if needed. Backup media were labeled 
with the date and time of backup, DOE serial number of the computer backed up, system utility 
used to perform the backup, and format of the magnetic media. Information transfers from one 
computer to another were done by magnetic media, Internet, or local network, using file transfer 
protocol (FTP) or attachments to e-mail on the same system. In most cases, such transfers were 
between computers that use a common operating system and storage format. In these cases, the 
name, date, and file size were visually checked. ASCII files were also verified by visual 
comparison of the data. All such visual checks were documented in a scientific notebook 
maintained in accordance with AP-SIII.1Q, Scientific Notebooks. 
For work done by Integrated Science Solutions, Inc. (ISSI), the requirement of AP-SV.1Q was 
met by the following measures: Computers used for processing and storing information were 
password-protected. All files were backed up on magnetic media monthly or more often if 
needed. Backup media was labeled with the date and time of backup, DOE serial number of the 
computer backed up, system utility used to perform the backup, and format of the magnetic 
media. Information transfers from one computer to another were done by magnetic media, 
Internet, or local network, using FTP or attachments to e-mail on the same system. In most 
cases, such transfers were between computers that use a common operating system and storage 
format. In these cases, the name, date, and file size were visually checked. ASCII files were 
also verified by visual comparison of the data. 
Scientific notebooks, as applicable, were used as per AP-SIII.1Q. As required, this report 
includes the quality level of the thermal testing measurements as per AP-2.22Q, Classification 
Analyses and Maintenance of the Q-List. The conclusions of this report do not affect the 
repository design or permanent items. 

3. USE OF SOFTWARE 
The process of restructuring groups of DTNs into Summary DTNs involved the limited use of 
commercial off-the-shelf graphics packages and spreadsheet software exempt from the control 
requirements of LP-SI.11Q-BSC, Software Management. The software used included Microsoft 
EXCEL, Versions 97 and 2000; and operating systems Windows 98, Windows NT and Windows 
2000. AutoCAD software was used to provide the graphical displays in Figures 6.3.1.2-7 and 
6.3.1.2-8. Software code CA-DISSPLA was used to provide the graphical displays in Figures 
6.2.2.2-2, 6.2.2.2-3 and 6.3.2.2-1. Both AutoCAD and CA-DISSPLA are commercial off-the-
shelf software codes, and their use in this report is for display purposes only. They are therefore 
exempt from the software qualification requirements per Section 2.1.2 of LP-SI.11Q-BSC, 
Software Management. 
The following Summary DTNs use Excel spreadsheets containing macros written to sort and/or 
chart data: 
 
LB0208AIRKDSTH.001 [DIRS 160897] 
 
LL020710523142.025 [DIRS 164182] (unqualified) 
 
MO0208RESTRSHT.002 [DIRS 170582] 
 
MO0208RESTRDST.002 [DIRS 161129] 
 
SN0207F3912298.037 [DIRS 162046] (unqualified) 
The macros in the above DTNs are not required to be qualified in accordance with 
LP-SI.11Q-BSC per the exemptions stated in Section 2.1.2 and 2.1.6 of that procedure. 

INTENTIONALLY LEFT BLANK 

4. INPUTS 
There are no direct inputs to this technical report as none of the data presented are being used to 
produce output from the report. As such, all inputs are indirect inputs. This section provides a 
listing of Input and Summary DTNs for measurements of characterization and test data from 
each of the three thermal tests: Large Block Test (LBT), Single Heater Test (SHT), and Drift 
Scale Test (DST). Although this report identifies DTNs as Input DTNs and Summary DTNs, 
both types are inputs to this report. Since many of these DTNs were developed in an incremental 
manner during the duration of each test, several DTNs need to be accessed to examine 
measurements for the duration of the already completed thermal tests (LBT and SHT) and the 
four-year heating phase of the DST. Many of the Input DTNs have been restructured into 
Summary DTNs listed here and in Tables 6.1-1, 6.2-1, and 6.3-1. These Summary DTNs retain 
the same DTN identifiers as the Product Output DTNs from ANL-NBS-HS-000041, Thermal 
Testing Measurements Report (BSC 2002 [DIRS 160771]), with the following exceptions. 
ANL-NBS-HS-000041, Thermal Testing Measurements Report (BSC 2002 [DIRS 160771]) 
Product Output DTNs SN0208F3511695.011 and LB0208ISODSTHP.001 were not used as 
Summary DTN inputs to this report due to errors found in these DTNs. Also, ANL-NBS-HS-
000041, Thermal Testing Measurements Report (BSC 2002 [DIRS 160771]) Product Output 
DTN: SN0208F3912298.039 was superseded by Summary DTN: SN0407F3912298.060 [DIRS 
170627]. As stated in Section 1, Product Output DTNs from ANL-NBS-HS-000041, Thermal 
Testing Measurements Report (BSC 2002 [DIRS 160771]), have had their status changed to non-
product output, and are now characterized as Summary DTNs. 
4.1 LARGE BLOCK TEST 
Table 4-1 lists DTNs for characterization and test measurements from the LBT. In the third 
column under the heading Type, the data are identified according to the four processes: 
thermal (T), hydrological (H), mechanical (M), and chemical (C), plus a fifth category, 
general (G). 
4.2 SINGLE HEATER TEST 
Table 4-2 lists DTNs for characterization and test measurements from the SHT. In the third 
column under the heading Type, the data are identified according to the four processes: 
thermal (T), hydrological (H), mechanical (M), and chemical (C), plus a fifth category, general 
(G). 
4.3 DRIFT SCALE TEST 
Table 4-3 lists DTNs for characterization and test measurements from the DST. In the third 
column under the heading Type, the data are identified according to the four processes: 
thermal (T), hydrological (H), mechanical (M), and chemical (C), plus a fifth category, 
general (G). 
4.4 OTHER DATA 
Tables 4-1, 4-2 and 4-3 in general represent the data that were considered when ANL-NBS-HS-
000041, Thermal Testing Measurements Report (BSC 2002 [DIRS 160771]), was issued. Some 

changes have occurred due to superseding data as well as the addition of data which support a 
new section in this report on introduced materials (Section 6.3.4.5). The tables do not represent 
the entire population of data gathered during the LBT, SHT and DST. Tables 4-4, 4-5 and 4-6 
list additional data sets available for the LBT, SHT and DST, respectively. These data sets were 
determined by keyword searches in ATDT (e.g., LBT or Large Block Test, etc.). The data 
sets were dispositioned based on their relevance to this report. Since one of the purposes of this 
report is to correct deficiencies in ANL-NBS-HS-000041, Thermal Testing Measurements 
Report (BSC 2002 [DIRS 160771]), data which were submitted after the issuance of ANL-NBS-
HS-000041, Thermal Testing Measurements Report (BSC 2002 [DIRS 160771]) were not 
considered for this report (with the exception of superseding data and data discussed in Section 
6.3.4.5, Chemical Effects of Introduced Materials in the Drift Scale Test). 
4.5 CRITERIA 
The following acceptance criteria from Section 2.2.1.3.3.3 of the Yucca Mountain Review Plan, 
Final Report (NRC 2003 [DIRS 163274]) have been identified as being applicable to this report. 
Acceptance Criteria 1  System Description and Model Integration Are Adequate 
(4) 
Spatial and temporal abstractions appropriately address physical couplings (thermal-
hydrologic-mechanical-chemical). For example, the U.S. Department of Energy evaluates 
the potential for focusing of water flow into drifts, caused by coupled thermal-hydrologic-
mechanical-chemical processes. 
(5) 
Sufficient technical bases and justification are provided for total system performance 
assessment assumptions and approximations for modeling coupled thermal-hydrologic-
mechanical-chemical effects on seepage and flow, the waste package chemical 
environment, and the chemical environment for radionuclide release. The effects of 
distribution of flow on the amount of water contacting the engineered barriers and waste 
forms are consistently addressed, in all relevant abstractions. 
(8) 
Adequate technical bases are provided, including activities such as independent modeling, 
laboratory or field data, or sensitivity studies, for inclusion of any thermal-hydrologic-
mechanical-chemical couplings and features, events, and processes. 
(9) 
Performance-affecting processes that have been observed in thermal-hydrologic tests and 
experiments are included into the performance assessment. For example, the U.S. 
Department of Energy either demonstrates that liquid water will not reflux into the 
underground facility or incorporates refluxing water into the performance assessment 
calculation, and bounds the potential adverse effects of alteration of the hydraulic pathway 
that result from refluxing water. 
Acceptance Criteria 2  Data Are Sufficient for Model Justification 
(1) 
Geological, hydrological, and geochemical values used in the license application are 
adequately justified. Adequate description of how the data were used, interpreted, and 
appropriately synthesized into the parameters is provided 

(2) 
Sufficient data were collected on the characteristics of the natural system and engineered 
materials to establish initial and boundary conditions for conceptual models of thermal-
hydrologic-mechanical-chemical coupled processes, that affect seepage and flow and the 
engineered barrier chemical environment. 
(3) 
Thermal-hydrologic tests were designed and conducted with the explicit objectives of 
observing thermal-hydrologic processes for the temperature ranges expected for repository 
conditions and making measurements for mathematical models. Data are sufficient to 
verify that thermal-hydrologic conceptual models address important thermal-hydrologic 
phenomena. 
(4) 
Sufficient information to formulate the conceptual approach(es) for analyzing water contact 
with the drip shield, engineered barriers, and waste forms is provided. 
Acceptance Criterion 3  Data Uncertainty Is Characterized and Propagated Through the 
Model Abstraction 
(4) Adequate representation of uncertainties in the characteristics of the natural system and 
engineered materials is provided in parameter development for conceptual models, process-
level models, and alternative conceptual models. The U.S. Department of Energy may 
constrain these uncertainties using sensitivity analyses or conservative limits. For example, 
the U.S. Department of Energy demonstrates how parameters used to describe flow through 
the engineered barrier system bound the effects of backfill and excavation-induced 
changes. 
Acceptance Criterion 5  Model Abstraction Output Is Supported by Objective 
Comparisons 
(3) Accepted and well-documented procedures are used to construct and test the numerical 
models that simulate coupled thermal-hydrologic-mechanical-chemical effects on seepage 
and flow, engineered barrier chemical environment, and the chemical environment for 
radionuclide release. Analytical and numerical models are appropriately supported. 
Abstracted model results are compared with different mathematical models, to judge 
robustness of results. 
4.6 CODES AND STANDARDS 
No specific formally established codes and standards have been identified as applying to this 
report. Although some standards were used to obtain thermal testing measurements, this activity 
was prior to DTN submittal, and therefore outside the scope of this report (See Section 1). Also, 
refer to key references cited in Section 1 and corresponding background discussion in the Input 
DTNs for information on applicable standards. 

Table 4-1. Input DTNs for the Large Block Test 
Input DTN [DIRS] Description Type 
Q 
Status 
LL980918904244.074 [DIRS 
135872] 
Heater Power, Temperature, Relative Humidity, 
and Gas Pressure 
T, H UQ 
LL980919404244.076 [DIRS Rock Mass Displacements M Q 
148630] 
LA0106FH831151.002 [DIRS Data Collection System Data T, M UQ 
158230] 
LA0106FH831151.003 [DIRS Data Collection System Data T, M UQ 
158229] 
LL981110704244.085 [DIRS Large Block Test Report, Chapter 4 G UQ 
169259] 
LL980913304244.072 [DIRS Electrical Resistance Tomograms H Q 
145385] 
LL981001604244.079 [DIRS Electrical Resistivity H Q 
158261] 
LL980919304244.075 [DIRS Neutron Logging H Q 
145099] 
LL971204304244.047 [DIRS Neutron Logging H Q 
113894] 
LL970803404244.040 [DIRS Data on Moisture Content in the LBT H Q 
113889] 
LL950812704242.017 [DIRS Porosity, Saturated and Dry Density H UQ 
158237] 
LL960905204244.022 [DIRS 
158244] 
Laboratory Matrix Permeability H Q 
LL981208404244.092 [DIRS X-ray Radiography H UQ 
158263] 
LL960400404244.012 [DIRS 
158271] 
Fracture Mapping G Q 
LL960400504244.013 [DIRS 
158274] 
Fracture Mapping G Q 
LL960400604244.014 [DIRS 
158275] 
Fracture Mapping G Q 
LL981202305912.004 [DIRS Bacterial Transport C UQ 
158270] 
LL960400704244.015 [DIRS 
158276] 
Fracture Mapping G Q 
LL020710523142.025 [DIRS Temperatures, Heater Powers, and Rock T, M UQ 
164182 Displacements of the LBT 
NOTES: All input DTNs are indirect inputs. 
DTNs: LA0106FH831151.002 [DIRS 158230] and LA0106FH831151.003 [DIRS 158229] provide 
access via the Records Processing Center (RPC) to all thermal and mechanical data collected in 
the LBT Data Collection System (original/electrical and converted/engineering units). These 
unqualified DTNs also provide access (RPC) to pertinent supporting material such as scientific 
notebooks and calibration relationships. 
T=Thermal, H=Hydrological, M=Mechanical, C=Chemical, G=General/Miscellaneous. 
Q=Qualified, UQ=Unqualified. Data sets listed as UQ should be used only for corroborative 
purposes. 

Table 4-2. Input DTNs for the Single Heater Test 
Input DTN [DIRS] Description Type 
Q 
Status 
LA0009SL831151.001 [DIRS 
153485] 
Fracture Mineralogy C Q 
LA0002FH6001WP.001 
[DIRS158278] 
Data Collection System Data T,H,M,C UQ 
LL970805504244.043 
[DIRS158313] 
XYZ Coordinates of Boreholes and Sensors T,H,M,C Q 
SNF35110695001.001 [DIRS 
158315] 
XYZ Coordinates of Boreholes and Sensors T,H,M,C Q 
SNL22080196001.001 [DIRS 
109722] 
Thermal Conductivity, Thermal Expansion T Q 
LL970101004244.026 [DIRS 
158281] 
Electrical Resistance Tomography H Q 
LL970505404244.031 [DIRS 
148609] 
Electrical Resistance Tomography H Q 
LL971002904244.044 [DIRS 
158286] 
Electrical Resistance Tomography H Q 
LL980105204244.049 [DIRS 
148610] 
Electrical Resistance Tomography H Q 
LB980901123142.003 [DIRS 
119016] 
Ground Penetrating Radar Data H Q 
LL980106904244.051 [DIRS 
118963] 
Neutron Logging H Q 
LB960500834244.001 [DIRS 
105587] 
Preheating Air Injection H Q 
LB980120123142.008 [DIRS 
158280] 
Air Injections in Boreholes 16 and 18, Part 1 of 4 H Q 
LB970500123142.001 [DIRS 
158293] 
Air Injections in Boreholes 16 and 18, Part 2 of 4 H Q 
LB0204SHAIRK3Q.001 [DIRS 
159543] 
Air Injections in Boreholes 16 and 18, Part 3 of 4 H Q 
LB971000123142.001 [DIRS 
118965] 
Air Injections in Boreholes 16 and 18, Part 4 of 4 H Q 
LB980901123142.001 [DIRS 
118999] 
Postcooling Air Injection and Gas Tracer Testing H Q 
LB980901123142.002 [DIRS 
119009] 
Temperature, Relative Humidity, Gauge 
Pressure (Passive Monitoring) 
T, H Q 
LB970500123142.003 [DIRS 
131500] 
Preheating Laboratory Saturation, Porosity, Bulk 
Density Gravimetric Water Content 
H Q 
LL020506123142.021 [DIRS 
169256] 
Preheating Laboratory Porosity, Relative 
Humidity, and Water Saturation 
H Q 
LB970100123142.001 [DIRS 
158287] 
Air Injections in Boreholes 16 and 18 H Q 
LB980901123142.006 [DIRS 
119029] 
Postcooling Laboratory Saturation, Porosity, 
Bulk Density Gravimetric Water Content 
H Q 
SN0401F3511695.012 [DIRS 
169262] 
Thermal and Thermal-mechanical Data M Q 
SN0401F3511695.013 [DIRS 
169263] 
Thermal and Thermal-mechanical Data M Q 

Table 4-2. Input DTNs for the Single Heater Test (Continued) 
Input DTN [DIRS] Description Type 
Q 
Status 
LL980109904243.015 [DIRS Optical MPBX Displacements M Q 
158299] 
SNF35110695001.010 [DIRS Rock Mass Deformation Modulus  Borehole M Q 
158300] (Goodman) Jack 
SNL22080196001.002 [DIRS Preheating Laboratory Unconfined Compressive M Q 
158306] Strength, Dry Bulk Density, Poissons Ratio, 
Youngs Modulus, Saturated Bulk Density, 
Seismic Velocity 
SNL22080196001.003 [DIRS 
119042] 
Postcooling Laboratory Thermal Conductivity, 
Thermal Expansion, Unconfined Compressive 
Strength, Dry Bulk Density, Poissons Ratio, 
Young's Modulus 
T, M Q 
LL970101104244.027 [DIRS Chemical Abundance Data C UQ 
158309] 
LL970409604244.030 [DIRS Chemical Abundance Data C UQ 
111481] 
LL970703904244.034 [DIRS Chemical Abundance Data C UQ 
111482] 
LL971006604244.046 [DIRS Chemical Abundance Data C UQ 
148611] 
GS951108312271.006 [DIRS Chemical Abundance Data C UQ 
169244] 
LB970700123142.002 [DIRS Infrared Images, Part 3 of 5 T, H Q 
158295] 
LB980120123142.001 [DIRS Infrared Images, Part 5 of 5 T, H Q 
158297] 
MO0208RESTRSHT.002 [DIRS Restructured SHT Heating Phase Power and T Q 
170582] Temperature Data 
LL020801823142.029 [DIRS Electrical Resistance Tomographs of the SHT H UQ 
170581] August 1996 through December 1997 
LB0208GPRSHTCP.001 [DIRS GPR for the Heating and Cooling Phases of the H Q 
170578] SHT 
LB0208AIRKSHTC.001 [DIRS Air Permeability Data for the Heating and H Q 
170576] Cooling Phases of the SHT 
NOTES: All input DTNs are indirect inputs 
DTN LA0002FH6001WP.001 [DIRS 158278] provides access via the Records Processing 
Center (RPC) to all thermal and mechanical data collected in the SHT Data Collection System 
(original/electrical and converted/engineering units). This unqualified DTN also provides 
access (RPC) to pertinent supporting material such as scientific notebooks and calibration 
relationships. These data should only be used for corroborative purposes. 
T=Thermal, H=Hydrological, M=Mechanical, C=Chemical, G=General/Miscellaneous. 
Q=Qualified, UQ=Unqualified. Data sets listed as UQ should be used only for corroborative 
purposes. 

Table 4-3. Input DTNs for the Drift Scale Test 
Input DTN [DIRS] Description Type 
Q 
Status 
MO0002ABBLSLDS.000 [DIRS 
147304] XYZ Coordinates of Boreholes and Sensors T,H,M,C Q 
MO9807DSTSET01.000 [DIRS Heater, Power, Current, Voltage, Temperature: T Q 
113644] November 7, 1997  May 1998 
MO9810DSTSET02.000 [DIRS Heater, Power, Current, Voltage, Temperature: T Q 
113662] June 1998  August 1998 
MO9906DSTSET03.000 [DIRS Heater, Power, Current, Voltage, Temperature: T Q 
113673] September 1998  May 1999 
MO0001SEPDSTPC.000 [DIRS Heater, Power, Current, Voltage, Temperature: T Q 
153836] June 1999  October 1999 
MO0007SEPDSTPC.001 [DIRS Heater, Power, Current, Voltage, Temperature: T Q 
153707] November 1999  May 2000 
MO0012SEPDSTPC.002 [DIRS Heater, Power, Current, Voltage, Temperature: T Q 
153708] June 2000  November 2000 
MO0107SEPDSTPC.003 [DIRS Heater, Power, Current, Voltage, Temperature: T Q 
158321] December 2000  May 2001 
MO0202SEPDSTTV.001 [DIRS Heater, Power, Current, Voltage, Temperature: T Q 
158320] June 2001  January 14, 2002 
SNF39012298002.004 [DIRS MPBX and CDEX Displacement Corrected for M Q 
153837] Thermal Expansion November 9, 1997  May 
1998 
SNF39012298002.008 [DIRS MPBX and CDEX Displacement Corrected for M Q 
153839] Thermal Expansion June 1998  August 1998 
SNF39012298002.012 [DIRS MPBX and CDEX Displacement Corrected for M Q 
153840] Thermal Expansion September 1998  May 
1999 
SN0001F3912298.016 [DIRS MPBX and CDEX Displacement Corrected for M Q 
153842] Thermal Expansion June 1999  October 1999 
SN0007F3912298.020 [DIRS MPBX and CDEX Displacement Corrected for M Q 
158388] Thermal Expansion November 1999  May 2000 
SN0101F3912298.026 [DIRS MPBX and CDEX Displacement Corrected for M Q 
158402] Thermal Expansion June 2000  November 
2000 
SN0107F3912298.031 [DIRS MPBX and CDEX Displacement Corrected for M Q 
158413] Thermal Expansion December 2000  May 2001 
SNL22100196001.003 [DIRS Thermal Expansion of Carbon Fiber and Invar M Q 
111068] Rods 
SN0203F3912298.035 [DIRS MPBX and CDEX Displacement Corrected for M Q 
158363] Thermal Expansion June 2001  January 14, 
2002 

Table 4-3. Input DTNs for the Drift Scale Test (Continued) 
Input DTN [DIRS] Description Type 
Q 
Status 
LB990630123142.005 [DIRS Ground Penetrating Radar Data H Q 
129274] 
LB000121123142.004 [DIRS Ground Penetrating Radar Data H Q 
158338] 
LB000718123142.004 [DIRS Ground Penetrating Radar Data H Q 
153354] 
LB0101GPRDST01.001 [DIRS Ground Penetrating Radar Data H Q 
158346] 
LB0203GPRDSTEH.001 [DIRS Ground Penetrating Radar Data H Q 
158350] 
LB0108GPRDST05.001 [DIRS Ground Penetrating Radar Data H Q 
158440] 
LB980120123142.004 [DIRS Active Baseline Air Injections in Boreholes 57H 
Q 
105590] 61, 74-78, 185-186 
LB980420123142.002 [DIRS Active Hydrology Testing for Boreholes 57-61, H Q 
113706] 74-78, 185-186; Air Injection and Gas Tracer 
Tests 
LB980715123142.002 [DIRS Active Hydrology Testing Data (Air Injection) H Q 
113742] Collected from 12 Hydrology Boreholes: 
March 1998 to May 1998 
LB0101AIRKDST1.001 [DIRS 
158345] 
Active Hydrology Testing Data (Air Injection) 
Collected from 12 Hydrology Boreholes: 
June 1, 2000 to November 30, 2000 
H Q 
LB981016123142.002 [DIRS Active Hydrology Testing for Boreholes 57-61, H Q 
129245] 74-78, 185-186; Air Injection Tests: 
June 1998 to August 1999 
LB990630123142.001 [DIRS Active Hydrology Testing by Air Injection: H Q 
129247] September 1998 to May 1999 
LB000121123142.002 [DIRS Active Hydrology Testing by Air Injection: June H Q 
158337] 1999 to October 1999 
LB000718123142.002 [DIRS Active Hydrology Testing Data (Air Injection) H Q 
158341] Collected from 12 Hydrology Holes: November 
1, 1999 to May 31, 2000 
LB0108AIRKDST5.001 [DIRS 
158438] 
Active Hydrology Testing Data (Air Injection) 
Collected from 12 Hydrology Boreholes: 
December 1, 2000 to May 31, 2001 
H Q 
LB0203AIRKDSTE.001 [DIRS 
158348] 
Active Hydrology Testing Data (Air Injection) 
Collected from 12 Hydrology Boreholes: 
June 1, 2001 to January 2002 
H Q 
SNF39012298002.002 [DIRS Measurements of Displacement Data for the M Q 
159114] Drift Scale Test (with results from 11/1/1997 
through 5/31/1998) 
SNF39012298002.010 [DIRS MPBX and CDEX Displacement M Q 
158367] September 1998  May 1999 
SN0001F3912298.014 [DIRS MPBX and CDEX Displacement M Q 
153841] June 1999  October 1999 
SN0007F3912298.018 [DIRS MPBX and CDEX Displacement M Q 
158374] November 1999  May 2000 

Table 4-3. Input DTNs for the Drift Scale Test (Continued) 
Input DTN [DIRS] Description Type 
Q 
Status 
SN0101F3912298.024 [DIRS 
158400] 
MPBX and CDEX Displacement June 2000  
November 2000 
M Q 
SN0107F3912298.029 [DIRS 
158408] 
MPBX and CDEX Displacement December 2000 
 May 2001 
M Q 
SN0203F3912298.033 [DIRS 
158361] 
MPBX and CDEX Displacement June 2001  
January 14, 2002 
M Q 
MO0207AL5WATER.001 [DIRS 
159300] 
Water Sampling in Alcove 5 (Results from 
2/4/1997 through 4/20/1999). 
C Q 
MO0101SEPFDDST.000 [DIRS 
153711] 
Field Measured Data of Water Samples from the 
Drift Scale Test 
C Q 
SN0203F3903102.001 [DIRS 
159133] 
Drift Scale Test Water Sampling (with Results 
from 4/17/2001 through 1/14/2002) 
C Q 
MO0005PORWATER.000 [DIRS 
150930] 
Perm-Sample Pore Water Data C Q 
LL001100931031.008 [DIRS 
153288] 
Aqueous Chemistry of Water Sampled from 
Boreholes of the Drift Scale Test (DST) 
C Q 
LL001200231031.009 [DIRS 
153616] 
Aqueous Chemistry of Water Sampled from 
Boreholes of the Drift Scale Test (DST) 
C UQ 
LL020302223142.015 [DIRS 
159134] 
Aqueous Geochemistry of DST Samples 
Collected from HYD Boreholes. 
C Q 
LL021107623121.014 [DIRS 
169257] 
Aqueous Geochemistry of DST Samples 
Collected Between April 20, 1999 and 
January 25, 2000 
C Q 
LL030107523142.031 [DIRS 
169258] 
Anion Concentrations of Two DST Samples 
Collected Between June 4, 1998 and 
March 30, 1999 
C UQ 
LL990702804244.100 [DIRS 
144922] 
Borehole and Pore Water Data C UQ 
LB0011CO2DST08.001 [DIRS 
153460] 
Isotope Data for CO2 from Gas Samples 
Collected from DST Hydrology Holes 
C Q 
LB980420123142.005 [DIRS 
111471] 
Isotope Data for CO2 from Gas Samples 
Collected from DST: February 1998 
C Q 
LB980715123142.003 [DIRS 
111472] 
Isotope Data for CO2 from Gas Samples 
Collected from DST: June 4, 1998 
C Q 
LB0404ISODSTHP.003 [DIRS 
169254] 
Third Submittal of CO2/H2O Isotope Data for the 
Heating Phase of the DST 
C Q 
LB990630123142.003 [DIRS 
111476] 
Isotope Data for CO2 from Gas and Water 
Samples: September 1998 to May 1999. 
C Q 
LB000121123142.003 [DIRS 
146451] 
Isotope Data for CO2 Gas Samples Collected 
from the Hydrology Boreholes: August 9, 1999 
through November 30, 1999 
C Q 
LB000718123142.003 [DIRS 
158342] 
Isotope Data for CO2 Gas Samples Collected 
from the Hydrology Boreholes: April 18, 2000 
through April 19, 2000. 
C Q 

Table 4-3. Input DTNs for the Drift Scale Test (Continued) 
Input DTN [DIRS] Description Type 
Q 
Status 
LB0102CO2DST98.001 [DIRS 
159306] 
Concentration and Isotope Data for CO2 and H20 
from Gas Samples Collected from Hydrology 
Boreholes: May and August 1999, April 2000, 
January and April 2001 
C Q 
LB0108CO2DST05.001 [DIRS 
156888] 
Concentration and Isotope Data for CO2 and H20 
from Gas Samples Collected from Hydrology 
Boreholes: May and August 1999, April 2000, 
January and April 2001 
C Q 
LB0203CO2DSTEH.001 [DIRS 
158349] 
Concentration/Isotope Data for CO2/H20 from 
Gas Samples Collected from Hydrology 
Boreholes up to End of Heating 
C Q 
LB0206C14DSTEH.001 [DIRS 
159303] 
Carbon 14 Isotope Data from CO2 Gas Samples 
Collected from DST 
C Q 
GS010808312322.004 [DIRS 
156007] 
Uranium and Uranium Isotope Data for Water 
Samples from Wells and Springs in the Yucca 
Mountain Vicinity Collected Between December 
1996 and December 1997 
C Q 
GS011108312322.008 [DIRS 
159136] 
Uranium Concentrations and 234u/238u Activity 
Ratios Analyzed Between February 1, 1999 and 
August 1, 2001 for Drift-Scale Heater Test Water 
Collected Between June 1998 and April 2001, 
and Pore Water Collected Between March 1996 
and April 1999. 
C Q 
GS010608315215.002 [DIRS 
156187] 
Uranium and Thorium Isotope Data for Waters 
Analyzed Between January 18, 1994 and 
September 14, 1996. 
C Q 
GS011108312322.009 [DIRS 
159137] 
Strontium Isotope Ratios and Strontium 
Concentrations in Water Samples from the Drift 
Scale Test Analyzed from March 16, 1999 to 
June 27, 2001. 
C Q 
GS960908315215.012 [DIRS 
169552] 
Strontium Isotope Ratios and Isotope Dilutions 
Data for Strontium Analyzed 07/06/95 to 
08/05/96. 
C Q 
GS010908315215.005 [DIRS 
169553] 
Strontium Isotope Ratios and Strontium 
Concentrations in Calcite Samples from the ESF 
Analyzed from May 25, 2000 to June 5, 2001. 
C Q 
GS990308315215.004 [DIRS 
145711] 
Strontium Isotope Ratios and Strontium 
Concentrations in Rock Core Samples and 
Leachates from USW SD-9 and USW SD-12. 
C Q 
GS040508312272.002 [DIRS 
169629] 
Strontium isotope Ratios and Strontium 
Concentrations on Introduced Materials to the 
ESF Tunnel 
C UQ 
GS990308315215.003 [DIRS 
145707] 
X-Ray Fluorescence Elemental Compositions of 
Rock Core Samples from USW SD-9 and USW 
SD-1`2 
C Q 
LL020405123142.019 [DIRS 
159307] 
Aqueous Geochemistry of Condensed Fluids 
Collected During Studies of Introduced 
Materials. 
C Q 
LA0108FH831151.001 [DIRS 
158316] 
Data Collection System Data T,H,M,C UQ 
LA0111FH831151.001 [DIRS 
169386] 
Data Collection System Data T,H,M,C UQ 

Table 4-3. Input DTNs for the Drift Scale Test (Continued) 
Input DTN [DIRS] Description Type 
Q 
Status 
LA0111FH831151.003 [DIRS Data Collection System Data T,H,M,C UQ 
158318] 
LA9908FH6001WP.001 [DIRS Data Collection System Data T,H,M,C UQ 
158319] 
LA0111FH831151.002 [DIRS Data Collection System Data T,H,M,C UQ 
158317] 
LA0208FH831151.001 [DIRS Data Collection System Data T,H,M,C UQ 
159515] 
LA0208FH831151.002 [DIRS Data Collection System Data T,H,M,C UQ 
159308] 
SNL22100196001.006 [DIRS Thermal Conductivity as Function of Saturation T Q 
158213] 
SN0203L2210196.007 [DIRS Thermal Expansion Thermal Conductivity DST T,M Q 
158322] Specimens 
LL980411004244.060 [DIRS DST Baseline REKA Probe Measurements. T Q 
159107] Temperature Measurements using REKA 
Probes: 11/14/97 - 7/31/98. 
LL980902104244.070 [DIRS 
159109] 
DST Baseline REKA Probe Measurements for 
Thermal Conductivity and Diffusivity. Probe 1 
from Borehole 153, Probe 2 from Borehole 152, 
T Q 
Probe 3 from Borehole 151. 
UN0106SPA013GD.003 [DIRS DST REKA Probe Acquired Data for Thermal T Q 
159115] Conductivity and Diffusivity: 05/01/1998 to 
04/30/2001 
UN0106SPA013GD.004 [DIRS DST REKA Probe Developed Data for Thermal T Q 
159116] Conductivity and Diffusivity: 05/01/1998 to 
04/30/2001 
UN0109SPA013GD.005 [DIRS DST Rapid Evaluation of K and Alpha (REKA) T Q 
159117] Probe Acquired Data for Thermal Conductivity 
and Diffusivity: 05/01/2001 to 08/31/2001 
UN0112SPA013GD.006 [DIRS DST REKA Probe Acquired Data for Thermal T Q 
159118] Conductivity and Diffusivity: 09/01/2001 to 
12/31/2001 
UN0201SPA013GD.007 [DIRS DST REKA Probe Developed Data for Thermal T Q 
159119] Conductivity and Diffusivity: 05/01/2001 to 
12/31/2001 
LL000804023142.009 [DIRS Water Saturation H Q 
158325] 
LL980108804244.052 [DIRS Electrical Resistivity H Q 
158332] 
LL980406404244.057 [DIRS Electrical Resistance Tomography H Q 
113782] 
LL990702704244.099 [DIRS Electrical Resistivity H Q 
113872] 
LL980808604244.065 [DIRS Electrical Resistance Tomography H UQ 
113791] 
LL020710223142.024 [DIRS Neutron Logging H Q 
159551] 
LB970600123142.001 [DIRS Active DST Preheating Air Injection, Part 1 of 2 H Q 
105589] 

Table 4-3. Input DTNs for the Drift Scale Test (Continued) 
Input DTN [DIRS] Description Type 
Q 
Status 
LB980120123142.005 [DIRS 
114134] 
Active DST Preheating Air Injection, Part 2 of 2 H Q 
LB0401PRTDSTHP.001 [DIRS 
169251] 
Passive Monitoring Data for Boreholes 57-61, 
74-78, 185-186: Nov 1997 to Feb 1998 
H Q 
LB0401PRTDSTHP.002 [DIRS 
169252] 
Passive Monitoring Data Collected from 12 
Hydrology Boreholes: March 1998 to May 1998 
H Q 
LB0401PRTDSTHP.003 [DIRS 
169253] 
Passive Monitoring Data for Boreholes 57-61, 
74-78, 185-186 Taken from June 1998 to Aug 
1998, 3rd Quarter 
H Q 
LB0401PRTDSTHP.004 [DIRS 
169255] 
Passive Monitoring Data (Relative Humidity, 
Pressure, Temperature): September 1998 to 
May 1999 
H Q 
LB0401PRTDSTHP.005 [DIRS 
169246] 
Passive Monitoring Data (Relative Humidity, 
Pressure, Temperature): June 1 through 
October 31, 1999 
H Q 
LB0401PRTDSTHP.006 [DIRS 
169247] 
Passive Monitoring Data Collected from 12 
Hydrology Boreholes Test: November 1, 1999 to 
May 31, 2000 
H Q 
LB0401PRTDSTHP.007 [DIRS 
169248] 
Passive Monitoring Data Collected from 12 
Hydrology Boreholes: June 1, 2000 to 
November 30, 2000 
H Q 
LB0401PRTDSTHP.008 [DIRS 
169249] 
Passive Monitoring Data Collected from 12 
Hydrology Boreholes: Dec. 1, 2000 to 
May 31, 2001 
H Q 
LB0401PRTDSTHP.009 [DIRS 
169250] 
Passive Monitoring Data Collected from 12 
Hydrology Boreholes: June 1, 2001 through end 
of Heating Phase Jan. 14, 2002 
H Q 
LB970500123142.003 [DIRS 
131500] 
Laboratory Saturation, Porosity, Bulk Density, 
Particle Density, Gravimetric Water Content 
Data from Dry Drilled and wet drilled Cores in 
the DST and SHT 
H Q 
LL020506123142.021 [DIRS 
169256] 
Laboratory Moisture Retention and Porosity H Q 
LL020502523142.020 [DIRS 
159105] 
Laboratory Measured Electrical Properties of the 
DST Samples as a Function of Saturation at 
95C 
H Q 
LL981109904242.072 [DIRS 
118959] 
Saturated and Dry Bulk Density Permittivity H Q 
LL980411104244.061 [DIRS 
159111] 
DST Baseline REKA Probe Measurements for 
Thermal Conductivity and Diffusivity. VA 
Supporting Data 
T Q 
SNF39012298002.006 [DIRS 
158419] 
MPBX and CDEX Displacement June 1998  
August 1998 
M Q 
SNF38040197001.001 [DIRS 
159130] 
Strain-gage and Anchor Locations M Q 
SNF39012298002.003 [DIRS 
158417] 
Ground Support System Strain: November 9, 
1997  May 1998 
M Q 
SNF39012298002.007 [DIRS 
158365] 
Ground Support System Strain: June 1998  
August 1998 
M Q 

Table 4-3. Input DTNs for the Drift Scale Test (Continued) 
Input DTN [DIRS] Description Type 
Q 
Status 
SNF39012298002.011 [DIRS 
158368] 
Ground Support System Strain: September 1998 
 May 1999 
M Q 
SN0001F3912298.015 [DIRS 
158372] 
Ground Support System Strain: June 1999  
October 1999 
M Q 
SN0007F3912298.019 [DIRS 
158387] 
Ground Support System Strain: November 1999 
 May 2000 
M Q 
SN0101F3912298.025 [DIRS 
158401] 
Ground Support System Strain: June 2000  
November 2000 
M Q 
SN0107F3912298.030 [DIRS 
158409] 
Ground Support System Strain: December 2000 
 May 2001 
M Q 
SN0203F3912298.034 [DIRS 
158362] 
Ground Support System Strain: June 2001  
January 14, 2002 
M Q 
SNF39012298002.005 [DIRS 
158418] 
Ground Support System Strain Corrected for 
Thermal Expansion: November 9, 1997  May 
1998 
M Q 
SNF39012298002.013 [DIRS 
158369] 
Ground Support System Strain Corrected for 
Thermal Expansion: September 1998  May 
1999 
M Q 
SN0001F3912298.017 [DIRS 
158373] 
Ground Support System Strain Corrected for 
Thermal Expansion: June 1999  October 1999 
M Q 
SN0007F3912298.021 [DIRS 
158391] 
Ground Support System Strain Corrected for 
Thermal Expansion: November 1999  May 
2000 
M Q 
SN0101F3912298.027 [DIRS 
158407] 
Ground Support System Strain Corrected for 
Thermal Expansion: June 2000  November 
2000 
M Q 
SN0107F3912298.032 [DIRS 
158414] 
Ground Support System Strain Corrected for 
Thermal Expansion: December 2000  May 
2001 
M Q 
SN0203F3912298.036 [DIRS 
158364] 
Ground Support System Strain Corrected for 
Thermal Expansion: June 2001  January 14, 
2002 
M Q 
LB980120123142.007 [DIRS 
158352] 
Acoustic Emissions: Baseline and Heating M Q 
LB980420123142.004 [DIRS 
113717] 
Acoustic Emissions: Baseline and Heating M Q 
LB000121123142.005 [DIRS 
158339] 
Acoustic Emissions: Baseline and Heating M Q 
LB000718123142.005 [DIRS 
158343] 
Acoustic Emissions: Baseline and Heating M Q 
LB0101ACEMDST1.001 [DIRS 
158344] 
Acoustic Emissions: Baseline and Heating M Q 
LB0108ACEMDST5.001 [DIRS 
158437] 
Acoustic Emissions: Baseline and Heating M Q 
SNF39012298002.009 [DIRS 
158366] 
Ground Support System Strain Corrected for 
Thermal Expansion: June 1998  August 1998 
M Q 
SNL02100196001.001 [DIRS 
158420] 
Elastic Constants and Strength Properties M Q 

Table 4-3. Input DTNs for the Drift Scale Test (Continued) 
Input DTN [DIRS] Description Type 
Q 
Status 
SNL23030598001.001 [DIRS Elastic Constants and Strength of Concrete M Q 
158370] 
SN0011F3912298.022 [DIRS Rock Mass Displacement Pressure Data Plate M Q 
158392] Load Test October 16-17, 2000 
SN0011F3912298.023 [DIRS Rock Mass Displacement Pressure Data in M Q 
158399] Modulus October 16-17, 2000 
LA9912SL831151.002 [DIRS Percent Coverage By Fracture-Coating Minerals C Q 
146449] in Core ESF-HD-TEMP-2 
LA0201SL831225.001 [DIRS Chemical, Textural, and Mineralogical C Q 
158426] Characteristics of Sidewall Samples from the 
Drift Scale Test. 
LA0303WS831151.001 [DIRS 
169378] 
Amorphous Silica in Drift Scale Test Sidewall 
Samples 
C Q 
LA0009SL831151.001 [DIRS Fracture Mineralogy of the ESF Single Heater C Q 
153485] Test Block, Alcove 5 
GS970608314244.006 [DIRS 
158429] 
Fracture Mapping G Q 
LARO831422AQ97.002 [DIRS DST Borehole Video Logging G Q 
158431] 
GS020808312272.004 [DIRS Analysis of Water-Quality Samples July 1999 to C Q 
166569] July 2002 
GS030408312272.002 [DIRS Analysis of Water-Quality Samples July 2002 to C Q 
165226] November 2002 
LB0211DSTRBRDG.001 [DIRS DST Packer Materials Investigation C Q 
170566] 
LB0302NEOPDGRD.001 [DIRS Neoprene Degradation Experiments C Q 
170567] 
LB0401PRTDSTCP.001 [DIRS Passive Monitoring Data (Temperature and H Q 
170568] Pressure) January 2002 to June 2002 
LB0401PRTDSTCP.002 [DIRS Passive Monitoring Data (Temperature and H Q 
170569] Pressure) July 2002 to December 2002 
LB980912332245.002 [DIRS Gas Tracer Data from Niche 3 (also referred to C Q 
105593] as Niche 3107) of the ESF 
LL030305023121.023 [DIRS Aqueous Geochemistry of DST Water Samples C Q 
170570] Collected February and March 2002 from 
Borehole 75, Zone 2 
LL030310023121.024 [DIRS Chemical Composition of Water Samples C Q 
170571] Collected from Hydraulic Boreholes of the DST 
LL030605512251.064 [DIRS Thermogravimetric Analysis on the Thermal C Q 
170572] Decomposition of Fluoroelastomer Samples 
Taken from Boreholes 60 and 72 
SN0210F3903102.004 [DIRS DST Water Sampling Results January 2002 to C Q 
170573] March 2002 
SN0211F3903102.005 [DIRS DST Water Sampling Results March 2002 to C Q 
170574] August 2002 
LB0208ACEMDSTH.001 [DIRS Acoustic Emission for the Heating Phase of the M Q 
170575] DST 
LB0208GPRDSTHP.001 [DIRS GPR for the Heating Phase of the DST H Q 
170577] 

Table 4-3. Input DTNs for the Drift Scale Test (Continued) 
Input DTN [DIRS] Description Type 
Q 
Status 
LB0208AIRKDSTH.001 [DIRS Air Permeability Data for the Heating Phase of H Q 
160897] the DST 
LB0208H2ODSTHP.001 [DIRS Passive Hydrological Data for the Heating Phase H Q 
170579] of the DST 
LL020709923142.023 [DIRS Aqueous Geochemistry of Borehole Waters C Q 
161677] Collected in the Heating Phase of the DST 
LL020801723142.028 [DIRS Electrical Resistance Tomographs of the DST H UQ 
170580] November 1997 through December 2001 
MO0208RESTRDST.002 [DIRS Restructured DST Heating Phase Power and T Q 
161129] Temperature Data 
MO0406SEPDSTHP.000 [DIRS DST Heating Phase Power and Reference T Q 
170615] Temperature Data 
MO0406SEPTVDST.000 [DIRS Temperature and Volume Water Content for T Q 
170616] DST Heating Phase for Boreholes 79 and 80 
SN0207F3912298.037 [DIRS Summary of Smoothed Measurements of M UQ 
162046] Displacement Data for the Heating Phase of the 
DST December 1997 through January 2002 
SN0208F3903102.002 [DIRS Summary of Thermal Test Water Samples and C Q 
161246] Field Measurements through 1/14/2002 
SN0208F3903102.003 [DIRS Field Measurements and Fluoride Content from C Q 
170620] HF (Hydrogen Fluoride) Tests 
SN0208F3912298.038 [DIRS Summary of Smoothed Measurements of Strain M UQ 
170610] Data for the Heating Phase of the DST 
SN0407F3912298.060 [DIRS Rock Mass Thermal Expansion coefficients for M Q 
170627] the DST Compared with In Situ Measurements 
NOTES: All input DTNs are indirect input. 
DTNs: LA9908FH6001WP.001 [DIRS 158319], LA0111FH831151.002 [DIRS 158317], 
LA0208FH831151.001 [DIRS 159515], LA0108FH831151.001 [DIRS 158316], 
LA0111FH831151.001 [DIRS 169386], LA0111FH831151.003 [DIRS 158318] and 
LA0208FH831151.002 [DIRS 159308] provide access via the Records Processing Center 
(RPC) to all thermal and mechanical data collected in the DST Data Collection System 
(original/electrical and converted/engineering units). These unqualified DTNs also provide 
access (RPC) to pertinent supporting material such as scientific notebooks and calibration 
relationships. 
T=Thermal, H=Hydrological, M=Mechanical, C=Chemical, G=General/Miscellaneous. 
Q=Qualified, UQ=Unqualified. Data sets listed as UQ should be used only for corroborative 
purposes. 

Table 4-4. Large Block Test  Other DTNs 
DTN TITLE DISPOSITION 
1. LL000314304242.094 NUFT CALCULATION LBT SENSITIVITY CALCS. Not relevant. This is a calculation and historic technical 
product output. 
2. LL000317504244.108 LBT DATA FROM SCIENTIFIC NOTEBOOK 00282 Not relevant. Barometric pressure data. 
3. LL000321204242.092 NUFT CALCULATION LBT SIMULATION Not relevant. Calculation. 
4. LL000511523141.004 DEVELOPED HEATER CORE AND OVERCORE DATA FOR THE LARGE BLOCK 
TEST 
Not relevant. Heater core mechanical data. 
5. LL010703623123.015 INPUT AND OUTPUT FILES FOR LARGE BLOCK TEST (LBT) MODEL 
VALIDATION SIMULATIONS 
Not relevant. Model files and historic technical product output. 
6. LL021204023141.007 DATA ON THERMAL CONDUCTIVITY AND THERMAL DIFFUSIVITY IN THE 
LARGE BLOCK TEST (LBT). 
DTN submittal post-dates (12/5/02) ANL-NBS-HS-000041, 
Rev. 0. 
7. LL030702223141.008 ACQUIRED DATA SUPPORTING RESISTIVITY RATIO TOMOGRAPHS AND 
SATURATION RATIO TOMOGRAPHS FROM THE LARGE BLOCK TEST (LBT) 
FOR THE PERIOD FEBRUARY 26, 1997 THROUGH MARCH 19,1998. 
Source to LL980913304244.072 (already listed in Table 4-1). 
8. LL030800123141.009 LARGE BLOCK TEST (LBT) DATA FOR THE PERIOD FEBRUARY 14,1997 TO 
SEPTEMBER 30, 1998. 
Source to LL980913304244.072 (already listed in Table 4-1). 
9. LL031003523141.010 LARGE BLOCK TEST (LBT) HEATER POWER DATA FOR THE PERIOD 
FEBRUARY 14,1997 TO SEPTEMBER 30, 1998. 
DTN submittal (10/30/03) post-dates ANL-NBS-HS-000041, 
Rev. 0. 
10. LL031003623141.011 LARGE BLOCK TEST (LBT) SURFACE TEMPERATURE DATA FOR THE PERIOD 
FEBRUARY 14,1997 TO SEPTEMBER 30, 1998. 
DTN submittal (11/06/03) post-dates ANL-NBS-HS-000041, 
Rev. 0. 
11. LL940800104244.000 COMPILATION OF INSULATING MATERIAL PROPERTIES FOR USE IN THE 
LARGE BLOCK TEST. 
Not relevant. Insulation material properties. 
12. LL940800804244.001 PRELIMINARY CHARACTERIZATION DATA FOR THE LARGE BLOCK TEST. Unqualified data. Data consists of a scientific notebook 
containing some data on fracture mapping, neutron logging 
and permeability. Table 4-1 contains other DTNs with this 
information. 
13. LL950102904244.003 INFORMATION ON THE POROSITY, MOISTURE CONTENT, AND 
PERMEABILITY OF SAMPLES TAKEN FROM THE LARGE BLOCK TEST. 
Unqualified data. Porosity, moisture content and permeability 
are also contained in Table 4-1 DTNs LL950812704242.017 
and LL960905204244.022. 
14. LL950103004244.004 A PROGRESS REPORT FOR THE LARGE BLOCK TEST OF THE COUPLED 
THERMAL-MECHANICAL-HYDROLOGICAL-CHEMICAL PROCESSES. 
Unqualified data. Information collected for scoping and 
calculation purposes only. 
15. LL950803104243.001 LAB TEST ON GEOMECHANICAL DATA ON SAMPLES FROM THE LARGE 
BLOCK TEST SITE. 
Unqualified data, not to be cited. 
16. LL960201304244.010 RELATIVE HUMIDITY AND TEMPERATURE AS A FUNCTION OF TIME FOR A 
SAMPLE OF THE LARGE BLOCK TEST. 
Unqualified data. Relative humidity and temperature data are 
contained in Table 4-1DTN LL980918904244.074. 
17. LL960201404244.011 ELECTRICAL RESISTIVITY OF LARGE BLOCK TEST SAMPLES AS A FUNCTION 
OF SATURATION. 
Unqualified data. Table 4-1 DTN LL981001604244.079 shows 
the electrical resistivity imaging between two boreholes. 
18. LL940909404244.002 NEUTRON LOGGING OF INSTRUMENT HOLES FOR LARGE BLOCK TEST. Not relevant. Log of construction activities. 
TDR-MGR-HS-000002 REV 00 4-16 September 2004 

TDR-MGR-HS-000002 REV 00 4-17 September 2004 
Table 4-4. Large Block Test  Other DTNS (Continued) 
DTN TITLE DISPOSITION 
19. LL970803004244.036 DATA ON TEMPERATURE OF THE LARGE BLOCK TEST (LBT). Superseded by LL980918904244.074 (listed in Table 4-1). 
20. LL970803104244.037 DATA ON DISPLACEMENT OF THE LARGE BLOCK TEST (LBT). Superseded by LL980918904244.076 (listed in Table 4-1). 
21. LL970803204244.038 DATA ON RELATIVE HUMIDITY OF THE LARGE BLOCK TEST (LBT). Superseded by LL980918904244.074 (listed in Table 4-1). 
22. LL970803304244.039 DATA ON PRESSURE COLLECTING IN THE LARGE BLOCK TEST (LBT). Superseded by LL980918904244.074 (listed in Table 4-1). 
23. LL970803504244.041 DATA ON THERMAL CONDUCTIVITY AND DIFFUSIVITY IN THE LARGE BLOCK 
TEST (LBT) 
SEP tables for this DTN only contain temperature and voltage 
drop data. No thermal conductivity or diffusivity data 
presented. 
24. LL980916704244.073 DATA SUBMISSION REPORT FOR ELECTRICAL RESISTANCE TOMOGRAPHY 
RESULTS OBTAINED DURING THE LARGE BLOCK TEST FY98. 
Unqualified data due to the process used to calculate 
saturation and temperature images. 
25. LL981004604243.024 GEOMECHANICAL OBSERVATIONS DURING THE LARGE BLOCK TEST. DTN contains limited rock displacement data. More complete 
data on rock displacement given in Table 4-1 DTN 
LL980919404244.076. 
26. LL981105404244.082 GEOMECHANICAL ANALYSIS OF THE LARGE BLOCK TEST. Unqualified data due to unqualified models. 
27. LL981106204244.083 LOCATION AND CALIBRATION OF SENSORS FOR LARGE BLOCK TEST. Data is contained in Records Processing Center in the form of 
a scientific notebook. Data In the notebook is available in 
other DTNs listed in Table 4-1. 
28. LL981110604244.084 LARGE BLOCK TEST REPORT, CHAPTER 5, RESULTS. Unqualified data. SEP tables contain data on permeability, 
temperature, electrical resistivity, water content and rock 
displacement. These parameters are addressed by other 
DTNs listed in Table 4-1. 
29. LL981110804244.086 LARGE BLOCK TEST REPORT, CHAPTER 3, PRE-TEST PREDICTIVE 
ANALYSIS. 
Unqualified data. Not relevant. Pretest analysis. 
30. LL981110904244.087 LARGE BLOCK TEST REPORT, CHAPTER 2, BLOCK PREPARATION AND 
PRETEST CHARACTERIZATION. 
Unqualified data. Not relevant. Pretest activities. 
31. LL981211004244.093 LARGE BLOCK TEST, FY98. Mapped surface fractures. Source data 
(LL960400704244.015) is listed in Table 4-1. 
32. LL990201804243.031 GEOMECHANICAL ANALYSIS OF THE LARGE BLOCK TEST (MOL-236). Source data (LL981105404244.082) is unqualified. 
33. LL990707004244.101 FRACTURE CHARACTERIZATION OF THE LARGE BLOCK TEST, FRAN RIDGE, 
YUCCA MOUNTAIN, NV 
Data consists of report UCRL-ID-13384. Fracture mapping 
data is also contained in other DTNs listed in Table 4-1. 

TDR-MGR-HS-000002 REV 00 4-18 September 2004 
Table 4-5. Single Heater Test  Other DTNs 
DTN TITLE DISPOSITION 
1. GS970608312272.005 TRITIUM DATA FROM ESF ALCOVE #5 CORES FOR SINGLE HEATER TEST. Qualified data which could be used to provide additional 
corroboration to values reported in Table 6.2.4.1-1. 
2. GS980908312272.003 STRONTIUM ISOTOPE RATIOS AND STRONTIUM CONCENTRATIONS IN 
WATERS FROM THE SINGLE HEATER TEST IN ESF-TMA-NEU2, FEBRUARY, 
1997 AND MAY, 1997. 
Qualified data which could be used to provide additional 
corroboration to values reported in Table 6.2.4.1-1. 
3. LA0009SL831151.002 MINERALOGY OF POST-TEST THERMOMECHANICAL SAMPLES FROM THE 
ESF SINGLE HEATER TEST BLOCK, ALCOVE 5. 
Unqualified data due to unqualified software. 
4. LASL831151AQ98.001 MINERALOGIC CHARACTERIZATION OF THE ESF SINGLE HEATER TEST 
BLOCK. 
Superseded by LA0009SL831151.001 and 
LAAA0009SL831151.002. 
5. LB970100123142.002 INFRARED IMAGES IN THE SINGLE HEATER TEST AREA. Superseded by LB980120123142.001 (listed in Table 4-2). 
6. LB970400123142.001 IMAGES FOR SECOND QUARTER RESULTS OF INFRARED MAPPING IN THE 
SINGLE HEATER TEST AREA. 
Superseded by LB980120123142.001 (listed in Table 4-2). 
7. LB970700123142.001 AIR INJECTIONS IN BOREHOLES #16 AND #18 IN THE SINGLE HEATER TEST 
AREA. 
Superseded by LB0204SHAIRK3Q.001 (listed in Table 4-2). 
8. LB971000123142.002 FOURTH QUARTER FY 97 IR PICTURES OF THE SINGLE HEATER TEST AREA. Superseded by LB980120123142.001 (listed in Table 4-2). 
9. LB980120123142.002 DATA FROM "LETTER REPORT ON FIRST QUARTER RESULTS OF 
MEASUREMENTS IN HYDROLOGY HOLES IN THE SINGLE HEATER TEST 
AREA, FY1998." 
Superseded by LB980120123142.008 (listed in Table 4-2). 
10. LB980901123142.004 THERMO-HYDROLOGICAL MODELING OF THE SINGLE HEATER TEST 
HEATING AND COOLING PHASES. 
Not relevant. Unqualified modeling data. 
11. LL030800223142.036 SINGLE HEATER TEST (SHT) DATA FOR THE PERIOD AUGUST 12, 1996 TO 
JANUARY 31, 1998. 
DTN post-dates (08/29/03) ANL-NBS-HS-000041, Rev. 0. 
12. LL031101423142.039 SAMPLES PREPARED FOR MOISTURE RETENTION EXPERIMENTS; DRIFT 
SCALE TEST AND SINGLE HEATER TEST 
DTN post-dates (11/13/03) ANL-NBS-HS-000041, Rev. 0. 
13. LL970103804243.009 FIRST QUARTER FY97 RESULTS OF OPTICAL MPBX MEASUREMENTS IN THE 
SINGLE HEATER TEST. 
Superseded by LL980109904243.015 (listed in Table 4-2). 
14. LL970407304243.012 STUDIES OF THE GEOMECHANICAL ATTRIBUTES OF THE WASTE PACKAGE 
ENVIRONMENT IN CONJUNCTION WITH THE LARGE BLOCK TET, THE SINGLE 
HEATER TEST AND THE HEATED DRIFT TEST. 
Scientific notebook. No relevant data. 
15. LL970410404243.013 SECOND QUARTER RESULTS OF OPTICAL MPBX MEASUREMENTS IN THE 
SINGLE HEATER TEST. 
Unqualified data consisting of one plot of change in distance 
from borehole collar to anchor #3 for OMPBX 7. 
LL980109904243.015 (Table 4-2) contains qualified data over 
a greater date range. 
16. LL970704004244.033 THIRD QUARTER RESULTS OF ERT MEASUREMENTS IN THE SINGLE 
HEATER TEST. 
Superseded by LL970505104244.031 (listed in Table 4-2). 

TDR-MGR-HS-000002 REV 00 4-19 September 2004 
Table 4-5. Single Heater Test  Other DTNs (Continued) 
DTN TITLE DISPOSITION 
17. LL970808704243.014 THIRD QUARTER RESULTS OF OPTICAL MPBX MEASUREMENTS IN THE 
SINGLE HEATER TEST (SHT). 
Superseded by LL980109904243.015 (listed in Table 4-2). 
18. LL971004604244.045 FOURTH QUARTER RESULTS OF THE NEUTRON LOGGING REPORT. DATA 
ON MOISTURE CONTENT IN BOREHOLES 15, 17, 22 AND 23 OF THE SINGLE 
HEATER TEST (SHT). 
Data in this DTN is a subset of data contained in 
LL980106904244.051 (listed in Table 4-2). 
19. LL980810904244.068 SINGLE HEATER TEST, FINAL REPORT. Not relevant. Graphical results from modeling activities. 
20. LL980811004244.069 SINGLE HEATER TEST FINAL REPORT. DTN contains data on quartz and cristobalite abundances. Not 
used since samples and/or boreholes not identified. 
21. LL981204804244.089 THERMAL-MECHANICAL-HYDROLOGICAL-CHEMICAL RESPONSES IN THE 
SINGLE HEATER TEST AT THE ESF. 
DTN contains qualified temperature, pressure and relative 
humidity data for Borehole 18. Not used because the same 
information is available in LL980901123142.002 (input DTN 
listed in Table 4-2). 
22. LL991009204244.103 SECOND QUARTER RESULTS OF CHEMICAL MEASUREMENTS IN THE 
SINGLE HEATER TEST 
Unqualified data. Data in this DTN is also contained in the four 
DTNs supporting Table 6.2.4.1-1 of this report. These DTNs 
are also unqualified. 
23. SN0003T0872799.010 SINGLE HEATER TEST (SHT) MODEL SIMULATION SENSITIVITY STUDY OF 
THE SHT USING THE TOTAL SYSTEM PERFORMANCE ASSESSMENTVIABILITY 
ASSESSMENT (TSPA-VA) HYDROLOGIC PROPERTY SET 
Not relevant. Unqualified modeling simulation data. 
24. SN0003T0872799.011 SINGLE HEATER TEST (SHT) MODEL SIMULATION SENSITIVITY STUDY OF 
THE SHT USING THE MEDIAN KB HYDROLOGIC PROPERTY SET 
Not relevant. Modeling simulation data. 
25. SN0003T0872799.012 SINGLE HEATER TEST (SHT) MODEL SIMULATION OF THE SHT USING THE 
BASE CASE DRIFT-SCALE HYDROLOGIC PROPERTY SET 
Not relevant. Historic technical product output modeling data. 
26. SN0005T0872799.013 SINGLE HEATER TEST (SHT) MODEL SIMULATION OF THE SHT USING THE 
BASE CASE DRIFT-SCALE HYDROLOGIC PROPERTY SET, USING TOUGH2, 
VERSION 1.4 
Not relevant. Historic technical product output modeling data. 
27. SNF35110695001.002 PRE-EXPERIMENT THERMAL-HYDROLOGICAL-MECHANICAL ANALYSES FOR 
THE ESF SINGLE HEATER TEST - PHASE 2. 
Not relevant. Pretest analyses. 
28. SNF35110695001.003 EVALUATE MEASUREMENTS AND ANALYZE SINGLE HEATER TEST (FIRST 
QUARTER FY97 RESULTS). 
Superseded by SNF35110695001.006. 
29. SNF35110695001.004 EVALUATION OF SINGLE HEATER TEST, THERMAL AND 
THERMOMECHANICAL DATA: SECOND QUARTER RESULTS (8/26/96 
THROUGH 2/28/97). 
Superseded by SNF35110695001.006. 
30. SNF35110695001.005 GOODMAN JACK MEASUREMENTS IN THE SINGLE HEATER TEST BLOCK 
FROM 8/26/96 TO 5/5/97. 
Superseded by SNF35110695001.010 (listed in Table 4-2). 

TDR-MGR-HS-000002 REV 00 4-20 September 2004 
Table 4-5. Single Heater Test  Other DTNs (Continued) 
DTN TITLE DISPOSITION 
31. SNF35110695001.006 EVALUATION AND COMPARATIVE ANALYSIS OF SINGLE HEATER TEST, 
THERMAL AND THERMOMECHANICAL DATA: THIRD QUARTER RESULTS 
(8/26/96 THROUGH 5/31/97) 
Superseded by SNF35110695001.007. 
32. SNF35110695001.007 EVALUATION AND COMPARATIVE ANALYSIS OF SINGLE HEATER TEST, 
THERMAL AND THERMOMECHANICAL DATA: FOURTH QUARTER RESULTS 
(8/26/96 THROUGH 8/31/97) 
Superseded by SNF35110695001.008 (listed in Table 4-2). 
33. SNT05071897001.011 THERMAL HYDROLOGIC ANALYSIS OF THE TSPA-VA HYDROLOGIC 
PROPERTY SETS IN THE SINGLE HEATER TEST DUAL PERMEABILITY 
MODEL. 
Not relevant. Unqualified modeling data. 

TDR-MGR-HS-000002 REV 00 4-21 September 2004 
Table 4-6. Drift Scale Test  Other DTNs 
DTN TITLE DISPOSITION 
1. GS021208312272.006 STRONTIUM ISOTOPE RATIOS AND STRONTIUM CONCENTRATIONS IN 
WATER SAMPLES FROM THE DRIFT SCALE TEST ANALYZED FROM MARCH 
12, 2002 TO JUNE 13, 2002. 
Not included in TDR-MGR-HS-000002, beyond cut-off date for 
report (DST cooling phase data acquired after 1/14/02). 
2. GS970608312272.004 DELTA 18-O AND DELTA D STABLE ISOTOPE ANALYSES OF DRIFT SCALE 
TEST BED WATERS. 
DTN developed for other purpose or analysis/model report. 
3. LB000300123142.001 THERMAL-HYDROLOGICAL SIMULATIONS OF THE DRIFT SCALE TEST. AMR 
N0000, THERMAL TESTS THERMAL HYDROLOGICAL ANALYSIS/MODEL 
REPORT. 
DTN developed for other purpose or analysis/model report. 
4. LB0011DSTTHCR1.001 TABLES SHOWING GEOCHEMICAL AND DRIFT-SCALE SEEPAGE MODEL 
DATA WHICH ARE PRESENTED IN AMR U0110/N0120, "DRIFT-SCALE 
COUPLED PROCESSES (DST AND THC SEEPAGE) MODELS REV01." 
DTN developed for other purpose or analysis/model report. 
5. LB0011DSTTHCR1.002 MODEL INPUT AND OUTPUT FILES, EXCEL SPREADSHEETS AND RESULTANT 
FIGURES WHICH ARE PRESENTED IN AMR U0110/N0120, "DRIFT-SCALE 
COUPLED PROCESSES (DST AND THC SEEPAGE) MODELS REV 01." 
DTN developed for other purpose or analysis/model report. 
6. LB0101DSTTHCR1.003 ATTACHMENT III - MINERAL REACTIVE SURFACE AREAS: TPTPMN AND DST 
THC MODELS FOR AMR N0120/U0110 REV01, "DRIFT-SCALE COUPLED 
PROCESSES (DRIFT-SCALE TEST AND THC SEEPAGE) MODELS." 
DTN developed for other purpose or analysis/model report. 
7. LB0101DSTTHCR1.005 ATTACHMENT V - THERMODYNAMIC DATABASE: TPTPMN THC BACKFILL 
AND DST THC REV00 MODELS, FOR AMR N0120/U0110 REV01 "DRIFT-SCALE 
COUPLED PROCESSES (DRIFT-SCALE TEST AND THC SEEPAGE) MODELS." 
DTN developed for other purpose or analysis/model report. 
8. LB0101DSTTHCR1.006 ATTACHMENT VI - THERMODYNAMIC DATABASE: TPTPMN THC (NO 
BACKFILL) AND DST THC REV01 MODELS FOR AMR N0120/U0110 REV01, 
"DRIFT-SCALE COUPLED PROCESSES (DRIFT-SCALE TEST AND THC 
SEEPAGE) MODELS." 
DTN developed for other purpose or analysis/model report. 
9. LB0101DSTTHGRD.001 2D FINITE ELEMENT MESH USED FOR DST THC MODEL SIMULATIONS (INPUT 
TO AMR N0120/U0110 REV.01). 
DTN developed for other purpose or analysis/model report. 
10. LB0108DSTTHC01.001 THC SIMULATIONS OF THE DRIFT SCALE TEST AND THC SEEPAGE MODEL: 
1. DATA SUMMARY 
DTN developed for other purpose or analysis/model report. 
11. LB0108DSTTHC01.002 THC SIMULATIONS OF THE DRIFT SCALE TEST AND THC SEEPAGE MODEL: 
2. INPUT/OUTPUT FILES 
DTN developed for other purpose or analysis/model report. 
12. LB0209ACEMDSTC.001 ACOUSTIC EMISSION FOR THE COOLING PHASE OF THE DST DTN submittal post-dates ANL-NBS-HS-000041, Rev. 0. 
13. LB0209AIRKDSTC.001 AIR PRESSURE DATA FOR THE COOLING PHASE OF THE DST DTN submittal post-dates ANL-NBS-HS-000041, Rev. 0. 

TDR-MGR-HS-000002 REV 00 4-22 September 2004 
Table 4-6. Drift Scale Test  Other DTNs (Continued) 
DTN TITLE DISPOSITION 
14. LB0209GPRDSTCP.001 GPR FOR THE COOLING PHASE OF THE DST DTN submittal post-dates ANL-NBS-HS-000041, Rev. 0. 
15. LB0209H2ODSTCP.001 PASSIVE HYDROLOGICAL DATA FOR THE COOLING PHASE OF THE DST DTN submittal post-dates ANL-NBS-HS-000041, Rev. 0. 
16. LB0209ISODSTCP.001 ISOTOPE DATA AND CO2 ANALYSIS FOR THE COOLING PHASE OF THE DST DTN submittal post-dates ANL-NBS-HS-000041, Rev. 0. 
17. LB0210GPRDSTCP.001 DST GPR MONITORING OF WATER CONTENT OVER TIME (COOLING PHASE) DTN submittal post-dates ANL-NBS-HS-000041, Rev. 0. 
18. LB0210GPRDSTHP.001 DST GPR MONITORING OF WATER CONTENT OVER TIME (HEATING PHASE) DTN developed for other purpose or analysis/model report. 
DTN compares changes in water content for various time 
periods. 
19. LB0303AIRKDSTC.001 AIR PRESSURE DATA FOR THE COOLING PHASE OF THE DST DTN submittal post-dates ANL-NBS-HS-000041, Rev. 0. 
20. LB0303GPRDSTCP.001 GPR FOR THE COOLING PHASE OF THE DST: PROCESSED DATA DTN submittal post-dates ANL-NBS-HS-000041, Rev. 0. 
21. LB0303H2ODSTCP.001 PASSIVE HYDROLOGICAL DATA FOR THE COOLING PHASE OF THE DST DTN submittal post-dates ANL-NBS-HS-000041, Rev. 0. 
22. LB0303ISODSTCP.001 ISOTOPE DATA AND CO2 ANALYSIS FOR THE COOLING PHASE OF THE DST DTN submittal post-dates ANL-NBS-HS-000041, Rev. 0. 
23. LB0304DSTTHMVL.002 DST AND NICHE THM MODEL VALIDATION: SUMMARY PLOTS VALUES DTN developed for other purpose or analysis/model report. 
24. LB0306DSTTHMVL.001 DST AND NICHE THM MODEL VALIDATION: SIMULATIONS DTN developed for other purpose or analysis/model report. 
25. LB0306DSTTHMVL.002 DST AND NICHE THM MODEL VALIDATION: SUMMARY PLOTS VALUES DTN developed for other purpose or analysis/model report. 
26. LB0307DSTTHCR2.001 DRIFT-SCALE COUPLED PROCESSES (DST SEEPAGE) MODEL: SIMULATIONS DTN developed for other purpose or analysis/model report. 
27. LB0307DSTTHCR2.002 DRIFT-SCALE COUPLED PROCESSES (DST SEEPAGE) MODEL: DATA 
SUMMARY 
DTN developed for other purpose or analysis/model report. 
28. LB0309AIRKDSTC.001 AIR PRESSURE DATA FOR THE COOLING PHASE OF THE DST DTN submittal post-dates ANL-NBS-HS-000041, Rev. 0. 
29. LB0309GPRDSTCP.001 GPR FOR THE COOLING PHASE OF THE DST: PROCESSED DATA DTN submittal post-dates ANL-NBS-HS-000041, Rev. 0. 
30. LB0309H2ODSTCP.001 PASSIVE TEMPERATURE AND PRESSURE MONITORING DATA FOR THE 
COOLING PHASE OF THE DST. 
DTN submittal post-dates ANL-NBS-HS-000041, Rev. 0. 
31. LB0309ISODSTCP.001 ISOTOPE DATA AND CO2 ANALYSIS FOR THE COOLING PHASE OF THE DST DTN submittal post-dates ANL-NBS-HS-000041, Rev. 0. 
32. LB0311RHMDSTCP.001 PASSIVE RELATIVE HUMIDITY MONITORING DATA FOR THE COOLING PHASE 
OF THE DST. 
Humidity data not included in the Summary DTN for passive 
monitoring data. 
33. LB0401RHMDSTCP.001 PASSIVE MONITORING DATA (RELATIVE HUMIDITY) FOR THE DRIFT SCALE 
TEST (01/15/2002-06/30/2002) 
Humidity data not included in the Summary DTN for passive 
monitoring data. 
34. LB0401RHMDSTCP.002 PASSIVE MONITORING DATA (RELATIVE HUMIDITY) FOR THE DRIFT SCALE 
TEST (07/01/2002-12/31/2002) 
Humidity data not included in the Summary DTN for passive 
monitoring data. 
35. LB0401RHMDSTHP.001 PASSIVE MONITORING DATA (RELATIVE HUMIDITY) FOR THE DRIFT SCALE 
TEST (11/01/1997-02/28/1998) 
Humidity data not included in the Summary DTN for passive 
monitoring data. 
36. LB0401RHMDSTHP.002 PASSIVE MONITORING DATA (RELATIVE HUMIDITY) FOR THE DRIFT SCALE 
TEST (03/01/1998-05/31/1998) 
Humidity data not included in the Summary DTN for passive 
monitoring data. 

TDR-MGR-HS-000002 REV 00 4-23 September 2004 
Table 4-6. Drift Scale Test  Other DTNs (Continued) 
DTN TITLE DISPOSITION 
37. LB0401RHMDSTHP.003 PASSIVE MONITORING DATA (RELATIVE HUMIDITY) FOR THE DRIFT SCALE 
TEST (06/01/1998-08/31/1998) 
Humidity data not included in the Summary DTN for passive 
monitoring data. 
38. LB0401RHMDSTHP.004 PASSIVE MONITORING DATA (RELATIVE HUMIDITY) FOR THE DRIFT SCALE 
TEST (09/01/1998-05/31/1999) 
Humidity data not included in the Summary DTN for passive 
monitoring data. 
39. LB0401RHMDSTHP.005 PASSIVE MONITORING DATA (RELATIVE HUMIDITY) FOR THE DRIFT SCALE 
TEST (06/01/1999-10/31/1999) 
Humidity data not included in the Summary DTN for passive 
monitoring data. 
40. LB0401RHMDSTHP.006 PASSIVE MONITORING DATA (RELATIVE HUMIDITY) FOR THE DRIFT SCALE 
TEST (11/01/1999-05/31/2000) 
Humidity data not included in the Summary DTN for passive 
monitoring data. 
41. LB0401RHMDSTHP.007 PASSIVE MONITORING DATA (RELATIVE HUMIDITY) FOR THE DRIFT SCALE 
TEST (06/01/2000-11/30/2000) 
Humidity data not included in the Summary DTN for passive 
monitoring data. 
42. LB0401RHMDSTHP.008 PASSIVE MONITORING DATA (RELATIVE HUMIDITY) FOR THE DRIFT SCALE 
TEST (12/01/2000-05/31/2001) 
Humidity data not included in the Summary DTN for passive 
monitoring data. 
43. LB0401RHMDSTHP.009 PASSIVE MONITORING DATA (RELATIVE HUMIDITY) FOR THE DRIFT SCALE 
TEST (06/01/2001-01/14/2002) 
Humidity data not included in the Summary DTN for passive 
monitoring data. 
44. LB970500123142.002 PRE-HEAT BASELINE INFRARED IMAGES IN THE DRIFT SCALE TEST AREA IN 
ESF THERMAL TEST ALCOVE 5. 
Images recorded only once, measurement discontinued. 
45. LB980120123142.003 DATA REPRESENT LOCATIONS OF HYDROLOGICAL SENSORS IN ESF DRIFT 
SCALE TEST (X,Y,Z POINTS). 
Data represent a subset of the input data in DTN: 
MO0002ABBLSLDS.000 listed in Table 6.3-1. 
46. LB981016123142.003 GROUND PENETRATING RADAR DATA COLLECTED USING THE PROTOTYPE 
HIGH TEMPERATURE CABLE DESIGN FOR THE THIRD QUARTER TDIF 
SUBMISSION FOR THE DRIFT SCALE TEST. 
Superseded by LB990630123142.005. 
47. LB991215123142.001 CO2 ANALYSIS OF GAS SAMPLES COLLECTED FROM THE DRIFT SCALE 
TEST. THESE DATA ARE FROM VARIOUS LBNL DRIFT SCALE TEST REPORTS 
FROM 1998 AND 1999. 
Superseded by LB0102CO2DST98.001. 
48. LL000116204243.035 ESF DRIFT SCALE TEST (DST) FRACTURE LOGS DTN developed for other purpose or analysis/model report. 
49. LL000116304244.106 ACQUIRED DATA SUPPORTING SATURATION RATIO TOMOGRAPHS AND 
RESISTIVITY RATIO TOMOGRAPHS FROM THE DRIFT SCALE TEST FOR THE 
PERIOD DECEMBER 17, 1997 THROUGH JANUARY 10, 2000. 
Data is a subset of input DTN: LL000804023142.009. 
50. LL000116404244.107 SATURATION AND RESISTIVITY RATIO TOMOGRAPHS FROM THE DRIFT 
SCALE TEST FOR THE PERIOD MARCH 18, 1998 THROUGH JANUARY 10, 
2000. 
Data is a subset of input DTN LL980808604244.065. 
51. LL000314404242.095 NUFT CALCULATION DST SENSITIVITY CALCS. DTN developed for other purpose or analysis/model report. 
52. LL000321704242.093 NUFT CALCULATION DST SIMULATION DTN developed for other purpose or analysis/model report. 
53. LL000511423101.009 NEUTRON LOG DATA FOR THE DRIFT SCALE TEST Superseded by LL000706023101.010. 

TDR-MGR-HS-000002 REV 00 4-24 September 2004 
Table 4-6. Drift Scale Test  Other DTNs (Continued) 
DTN TITLE DISPOSITION 
54. LL000706023101.010 MOISTURE CONTENT OF ROCK FROM NEUTRON LOGGING ACTIVITIES IN 
THE DRIFT SCALE TEST FROM AUGUST 1997 TO JULY 2000 
Superseded by LL011001523142.012. 
55. LL000802123101.011 SCIENTIFIC NOTEBOOK PAGES AND ELECTRONIC RAW DATA FROM ERT 
ACTIVITIES AND TEMPERATURE MEASUREMENTS RECORDED IN THE ESF 
DRIFT SCALE TEST (DST) 
DTN developed for other purpose or analysis/model report. 
56. LL010700123123.013 INPUT AND OUTPUT FILES FOR DRIFT SCALE TEST (DST) MODEL 
VALIDATION SIMULATIONS 
DTN developed for other purpose or analysis/model report. 
57. LL011001523142.012 MOISTURE CONTENT OF ROCK FROM NEUTRON LOGGING ACTIVITIES IN 
THE DRIFT SCALE TEST (DST): AUGUST 1997 TO JULY 2001 
Superseded by LL020306423142.016. 
58. LL011003323142.013 ACQUIRED DATA SUPPORTING SATURATION RATIO TOMOGRAPHS AND 
RESISTIVITY RATIO TOMOGRAPHS FROM THE DRIFT SCALE TEST FOR THE 
PERIOD APRIL 10, 2000 THROUGH MAY 8, 2001. 
DTN submittal post-dates ANL-NBS-HS-000041, Rev. 0. 
59. LL011003423142.014 SATURATION AND RESISTIVITY RATIO TOMOGRAPHS FROM THE DRIFT 
SCALE TEST FOR THE PERIOD APRIL 10, 2000 THROUGH MAY 08, 2001. 
Not included in TDR-MGR-HS-000002, author included data 
acquired up to 1/10/2000. 
60. LL020306423142.016 MOISTURE CONTENT OF ROCK FROM NEUTRON LOGGING ACTIVITIES IN 
THE DRIFT SCALE TEST (DST): AUGUST 1997 TO JANUARY 2002 
Superseded by LL020710223142.024. 
61. LL020307623142.017 DATA SUPPORTING LIQUID SATURATION TOMOGRAPHS FOR THE ESF DRIFT 
SCALE TEST DETERMINED FROM ELECTRICAL RESISTANCE TOMOGRAPH 
(ERT) MEASUREMENTS 
Not included in TDR-MGR-HS-000002, author included data 
acquired up to 1/10/2000. 
62. LL020307723142.018 LIQUID SATURATION TOMOGRAPHS FOR THE ESF DRIFT SCALE TEST (DST) 
DETERMINED FROM ELECTRICAL RESISTANCE TOMOGRAPHY (ERT) 
Not included in TDR-MGR-HS-000002, author included data 
acquired up to 1/10/2000. 
63. LL020801523142.026 ACQUIRED DATA SUPPORTING ELECTRICAL RESISTIVITY AND SATURATION 
RATIO TOMOGRAPHS OF THE DRIFT SCALE TEST, JANUARY 1, 2002 
THROUGH JUNE 30, 2002. 
DTN submittal post-dates ANL-NBS-HS-000041, Rev. 0. 
64. LL020801623142.027 ELECTRICAL RESISTIVITY AND SATURATION RATIO TOMOGRAPHS OF THE 
DRIFT SCALE TEST, JANUARY 1, 2002 THROUGH JUNE 30, 2002. 
DTN submittal post-dates ANL-NBS-HS-000041, Rev. 0. 
65. LL021104823123.016 ESF DRIFT SCALE TEST (DST) FRACTURE LOG DTN developed for other purpose or analysis/model report. 
66. LL030207823121.021 CHEMICAL CONCENTRATIONS OF MISCELLANEOUS DST WATER SAMPLES 
COLLECTED JUNE 4,1998 
Miscellaneous water samples were not included in data set 
because they were unplanned and not part of the hydrology 
borehole sample set. 
67. LL030305023121.023 AQUEOUS GEOCHEMISTRY OF DST WATER SAMPLES COLLECTED IN 
FEBRUARY AND MARCH OF 2002 FROM BOREHOLE 75, ZONE 2 (BH 75-2). 
DTN submittal post-dates ANL-NBS-HS-000041, Rev. 0. 
68. LL030308523142.032 ACQUIRED DATA SUPPORTING ELECTRICAL RESISTIVITY AND SATURATION 
RATIO TOMOGRAPHS OF THE DRIFT SCALE TEST FOR THE PERIOD JULY 1, 
2002 TO DECEMBER 31, 2002. 
DTN submittal post-dates ANL-NBS-HS-000041, Rev. 0. 
69. LL030308623142.033 ELECTRICAL RESISTIVITY AND SATURATION RATIO TOMOGRAPHS OF THE 
DRIFT SCALE TEST FOR THE PERIOD JULY 1, 2002 THROUGH DECEMBER 31, 
2002. 
DTN submittal post-dates ANL-NBS-HS-000041, Rev. 0. 

TDR-MGR-HS-000002 REV 00 4-25 September 2004 
Table 4-6. Drift Scale Test  Other DTNs (Continued) 
DTN TITLE DISPOSITION 
70. LL030309723122.022 MOISTURE CONTENT OF ROCK FROM NEUTRON LOGGING ACTIVITIES IN 
THE DRIFT SCALE TEST (DST): JULY 2002 THROUGH NOVEMBER 2002. 
DTN submittal post-dates ANL-NBS-HS-000041, Rev. 0. 
71. LL030310023121.024 CHEMICAL COMPOSITION OF WATER SAMPLES COLLECTED FROM HYD 
BOREHOLES OF THE DRIFT SCALE TEST (DST) 
DTN submittal post-dates ANL-NBS-HS-000041, Rev. 0. 
72. LL030310323142.034 BASELINE DATA SUPPORTING ELECTRICAL RESISTIVITY AND SATURATION 
RATIO TOMOGRAPHS OF THE DRIFT SCALE TEST (DST). 
Data is a subset of input DTN: LL000804023142.009. 
73. LL030605512251.064 THERMOGRAVIMETRIC ANALYSIS (TGA) DATA ON THE THERMAL 
DECOMPOSITION OF FLUOROELASTOMER (FKM) SAMPLES TAKEN FROM 
BH-60 AND BH-72 OF THE DRIFT SCALE TEST AT YUCCA MOUNTAIN. 
Add to Table 4-3, data will be included in rewrite of Section 
6.3.4.5. 
74. LL030606723142.035 SATURATION AND RESISTIVITY RATIO TOMOGRAPHS FROM THE DRIFT 
SCALE TEST FOR THE PERIOD FEBRUARY 5, 2002 THROUGH OCTOBER 1, 
2002. 
DTN submittal post-dates ANL-NBS-HS-000041, Rev. 0. 
75. LL030709023122.032 MOISTURE CONTENT OF ROCK FROM NEUTRON LOGGING ACTIVITIES IN 
THE DRIFT SCALE TEST (DST): JANUARY 2003 THROUGH MAY 2003. 
DTN submittal post-dates ANL-NBS-HS-000041, Rev. 0. 
76. LL030808923122.039 INPUT AND OUTPUT FILES ASSOCIATED WITH THE LARGE-BLOCK AND 
DRIFT SCALE TESTS IN SUPPORT OF LA MULTI-SCALE ANALYSES. 
DTN developed for other purpose or analysis/model report. 
77. LL030906823142.037 DATA SUPPORTING THE ELECTRICAL RESISTIVITY AND SATURATION RATIO 
TOMOGRAPHS OF THE DRIFT SCALE TEST (DST) FROM MARCH 4, 2003 
THROUGH MAY 21, 2003. 
DTN submittal post-dates ANL-NBS-HS-000041, Rev. 0. 
78. LL030906923142.038 ELECTRICAL RESISTIVITY AND SATURATION RATIO TOMOGRAPHS OF THE 
DRIFT SCALE TEST (DST), MARCH 4, 2003 THROUGH MAY 21, 2003. 
DTN submittal post-dates ANL-NBS-HS-000041, Rev. 0. 
79. LL031101423142.039 SAMPLES PREPARED FOR MOISTURE RETENTION EXPERIMENTS; DRIFT 
SCALE TEST AND SINGLE HEATER TEST 
DTN developed for other purpose or analysis/model report. 
80. LL040105723142.040 DATA SUPPORTING THE ELECTRICAL RESISTIVITY AND SATURATION RATIO 
TOMOGRAPHS OF THE DRIFT SCALE TEST (DST) FOR AUGUST 6 & 7, 2003. 
DTN submittal post-dates ANL-NBS-HS-000041, Rev. 0. 
81. LL970206704244.029 MINERAL ABUNDANCES FOR SAMPLES FROM SIX CHEMISTRY (SEAMIST) 
BOREHOLES IN THE DRIFT SCALE TEST (DST) AREA OF THE ESF. 
Work scope conducted and reported on by LANL. 
82. LL970709004244.035 SINGLE HEATER TEST SAMPLES (SHT) SHOWING POROSITY, RELATIVE 
HUMIDITY AND WATER SATURATION AND DRIFT SCALE TEST SAMPLES 
(DST) SHOWING POROSITY, MATRIC POTENTIAL AND WATER SATURATION. 
DTN developed for other purpose or analysis/model report. 
83. LL980201004244.053 GAS BASELINE DATA FROM BOREHOLES IN THE DRIFT SCALE TEST. Work scope conducted and reported on by LBNL. 
84. LL980204304244.055 DRIFT SCALE TEST SAMPLES PREPARED FROM ELECTRICAL PROPERTIES 
MEASUREMENTS. 
DTN developed for other purpose or analysis/model report. 
85. LL980408304244.058 GAS BASELINE DATA FROM BOREHOLES IN THE DRIFT SCALE TEST. Work scope conducted and reported on by LBNL. 
86. LL980809804244.066 SECOND QTR FY98 RESULTS OF NEUTRON LOGGING IN THE DRIFT SCALE 
TEST. 
Data is a subset of input DTN LL020710223142.024. 

TDR-MGR-HS-000002 REV 00 4-26 September 2004 
Table 4-6. Drift Scale Test  Other DTNs (Continued) 
DTN TITLE DISPOSITION 
87. LL980810004244.067 THE DRIFT SCALE TEST EFFECT OF THE CHEMISTRY OF PORE GASES AND 
PORE WATER. 
DTN developed for other purpose or analysis/model report. 
88. LL981001204244.077 THE RESULTS OF THE EVALUATION OF THE REKA PROBE MEASUREMENTS 
AT THE DRIFT SCALE TEST. 
DTN developed for other purpose or analysis/model report. 
89. LL981001304244.078 THE RESULTS OF THE EVALUATION OF THE REKA PROBE MEASUREMENTS 
AT THE DRIFT SCALE TEST. 
DTN developed for other purpose or analysis/model report. 
90. LL981202204244.088 THE DRIFT SCALE TEST 3RD QTR. EFFECT OF THE CHEMISTRY OF PORE 
GASES AND PORE WATER. 
Data represent a subset of the input data in DTN: 
LL990702804244.100. 
91. LL990708904243.033 DRIFT SCALE TEST (DST) NEUTRON LOGGING DATA REPORT DTN developed for other purpose or analysis/model report. 
92. MO0001COV99495.000 COVERAGE: DSTESTS DTN developed for other purpose or analysis/model report. 
93. MO0111SPAMSC14.042 SEEPAGE GROUT INTERACTIONS MODEL SENSITIVITY CALCULATIONS 
USING EVAPORATED PERCHED AND DRIFT SCALE TEST WATERS 
DTN developed for other purpose or analysis/model report. 
94. MO0203SEPBLDST.000 AS-BUILT BOREHOLE LOCATIONS FOR BOREHOLES 47 THROUGH 51 AND 64 
THROUGH 68 FOR THE DRIFT SCALE TEST GIVEN IN LOCAL (DST) 
COORDINATES. 
Data represent a subset of the input data in DTN: 
MO0002ABBLSLDS.000 listed in Table 6.3-1. 
95. MO0205UCC013GD.008 DST REKA PROBE ACQUIRED DATA FOR THERMAL CONDUCTIVITY AND 
DIFFUSIVITY FOR THE PERIOD 01/01/2001 TO 03/31/2002 (HEATED 
MEASUREMENTS FOR BOREHOLES 151, 152, AND 153.) 
Data represent a subset of the input data in DTN: 
UN0112SPA013GD.005. 
96. MO0208SEPDSTTD.001 DRIFT SCALE TEST (DST) TEMPERATURE DATA FOR JANUARY 15, 2002 
THROUGH JUNE 30, 2002 
DTN submittal post-dates ANL-NBS-HS-000041, Rev. 0. 
97. MO0208UCC013GD.009 DST REKA PROBE ACQUIRED DATA FOR THERMAL CONDUCTIVITY AND 
DIFFUSIVITY FOR THE PERIOD 04/01/2002 TO 06/30/2002 (HEATED 
MEASUREMENTS FOR BOREHOLES 151, 152, AND 153.) 
DTN submittal post-dates ANL-NBS-HS-000041, Rev. 0. 
98. MO0208UCC013GD.010 DST REKA PROBE DEVELOPED DATA FOR THERMAL CONDUCTIVITY AND 
DIFFUSIVITY FOR THE PERIOD 03/01/2001 TO 6/30/2002 (HEATED 
MEASUREMENTS FOR BOREHOLE 153) 
DTN submittal post-dates ANL-NBS-HS-000041, Rev. 0. 
99. MO0208UCC013GD.011 DST REKA PROBE DEVELOPED DATA FOR THERMAL CONDUCTIVITY AND 
DIFFUSIVITY FOR THE PERIOD 01/01/2002 TO 06/30/2002 (HEATED 
MEASUREMENTS FOR BOREHOLES 151, 152) 
DTN submittal post-dates ANL-NBS-HS-000041, Rev. 0. 
100. MO0211UCC013GD.012 DST REKA PROBE ACQUIRED DATA FOR THERMAL CONDUCTIVITY AND 
DIFFUSIVITY FOR THE PERIOD 07/01/2001 TO 09/30/2002 (HEATED 
MEASUREMENTS FOR BOREHOLES 151, 152, AND 153.) 
DTN submittal post-dates ANL-NBS-HS-000041, Rev. 0. 

TDR-MGR-HS-000002 REV 00 4-27 September 2004 
Table 4-6. Drift Scale Test  Other DTNs (Continued) 
DTN TITLE DISPOSITION 
101. MO0211UCC013GD.013 DST REKA PROBE DEVELOPED DATA FOR THERMAL CONDUCTIVITY AND DIFFUSIVITY 
FOR THE PERIOD 07/01/02 TO 09/30/02 (HEATED MEASUREMENTS FOR BOREHOLE 153) 
DTN submittal post-dates ANL-NBS-HS-000041, 
Rev. 0. 
102. MO0211UCC013GD.014 DST REKA PROBE DEVELOPED DATA FOR THERMAL CONDUCTIVITY AND DIFFUSIVITY 
FOR THE PERIOD 07/01/02 TO 09/30/02 (HEATED MEASUREMENTS FOR BOREHOLES 151, 
152) 
DTN submittal post-dates ANL-NBS-HS-000041, 
Rev. 0. 
103. MO0302UCC013GC.015 DST REKA PROBE ACQUIRED DATA FOR THERMAL CONDUCTIVITY AND DIFFUSIVITY 
FOR THE PERIOD 10/01/2002 TO 12/31/2002 (HEATED MEASUREMENTS FOR BOREHOLES 
151, 152, AND 153.) 
DTN submittal post-dates ANL-NBS-HS-000041, 
Rev. 0. 
104. MO0302UCC013GD.016 DST REKA PROBE DEVELOPED DATA FOR THERMAL CONDUCTIVITY AND DIFFUSIVITY 
FOR THE PERIOD 10/01/02 TO 12/31/02 (HEATED MEASUREMENTS FOR BOREHOLES 151, 
152, AND 153) 
DTN submittal post-dates ANL-NBS-HS-000041, 
Rev. 0. 
105. MO0303SEPDSTTM.000 DRIFT SCALE TEST (DST) TEMPERATURE DATA FOR JULY 1, 2002 THROUGH DECEMBER 
31, 2002. 
DTN submittal post-dates ANL-NBS-HS-000041, 
Rev. 0. 
106. MO0305DSTNEU01.000 DRIFT SCALE TEST, NEUTRON LOGGING DATA, 09/16/02 THROUGH 03/27/03 DTN submittal post-dates ANL-NBS-HS-000041, 
Rev. 0. 
107. MO0305UCC013GD.017 DST REKA PROBE ACQUIRED DATA FOR THERMAL CONDUCTIVITY AND DIFFUSIVITY 
FOR THE PERIOD OF 01/01/2003 TO 03/31/2003 (HEATED MEASUREMENTS FOR 
BOREHOLES 151, 152, AND 153) 
DTN submittal post-dates ANL-NBS-HS-000041, 
Rev. 0. 
108. MO0305UCC013GD.018 DST REKA PROBE DEVELOPED DATA FOR THERMAL CONDUCTIVITY AND DIFFUSIVITY 
FOR THE PERIOD OF 01/01/2003 TO 03/31/2003 (HEATED MEASUREMENTS FOR 
BOREHOLES 151, 152, AND 153) 
DTN submittal post-dates ANL-NBS-HS-000041, 
Rev. 0. 
109. MO0307DSTNEU02.000 DRIFT SCALE TEST, NEUTRON LOGGING DATA, 03/28/03 THROUGH 07/09/03 DTN submittal post-dates ANL-NBS-HS-000041, 
Rev. 0. 
110. MO0307SEPDST31.000 DRIFT SCALE TEST (DST) TEMPERATURE DATA FOR 01/01/2003 THROUGH 06/30/2003 DTN submittal post-dates ANL-NBS-HS-000041, 
Rev. 0. 
111. MO0307UCC013GD.019 DST REKA PROBE ACQUIRED DATA FOR THERMAL CONDUCTIVITY AND DIFFUSIVITY 
FOR THE PERIOD 04/01/2003 TO 06/30/2003 (HEATED MEASUREMENTS FOR BOREHOLES 
151, 152, AND 153.) 
DTN submittal post-dates ANL-NBS-HS-000041, 
Rev. 0. 
112. MO0307UCC013GD.020 DST REKA PROBE DEVELOPED DATA FOR THERMAL CONDUCTIVITY AND DIFFUSIVITY 
FOR THE PERIOD 04/01/03 TO 06/30/03 (HEATED MEASUREMENTS FOR BOREHOLES 151, 
152, AND 153). 
DTN submittal post-dates ANL-NBS-HS-000041, 
Rev. 0. 

TDR-MGR-HS-000002 REV 00 4-28 September 2004 
Table 4-6. Drift Scale Test  Other DTNs (Continued) 
DTN TITLE DISPOSITION 
113. MO0401DSTNEU03.000 NEUTRON LOGGING DATA FOR THE DRIFT SCALE TEST, 07/17/03 THROUGH 01/07/04 DTN submittal post-dates ANL-NBS-HS-000041, 
Rev. 0. 
114. MO9804YMP98047.000 DRIFT SCALE TEST AS-BUILT REPORT. PROVIDES AS-BUILT CONDITION OF THE DST TO 
INCLUDE SURVEYED LOCATIONS FOR BOREHOLES AND SENSORS WITH REFERENCES 
TO CHARACTERIZATION DATA AND PRE-HEAT BASELINE DATA. 
Superseded by MO9812DSTABLSL.000 and 
MO9907DRSCTABR.000. 
115. MO9812DSTABLSL.000 AS-BUILT BOREHOLE LOCATIONS AND SENSOR LOCATIONS FOR THE DRIFT SCALE 
TEST GIVEN IN LOCAL (DST) COORDINATES. 
Superseded by MO0002ABBLSLDS.000. 
116. MO9907DRSCTABR.000 DRIFT SCALE TEST AS-BUILT REPORT Superseded by MO0002ABBLSLDS.000. 
117. MO9912GSC99495.000 PHYSICAL DESCRIPTION OF THE DRIFT SCALE TEST DTN developed for test planning purpose. 
118. MORW831213DQ98.001 XYZ COORDINATES FOR THE TOP AND BOTTOM OF THE 51 PARTIALLY SURVEYED 
BOREHOLES IN THE DRIFT SCALE TEST BLOCK. 
Superseded by MO9804YMP98047.000. 
119. SN0106F3912298.028 SMOOTHED MEASUREMENTS OF DISPLACEMENT DATA FOR THE DRIFT SCALE TEST 
(WITH RESULTS FROM 12/3/1997 THROUGH 7/31/2000) 
Data is a subset of summary DTN: 
SN0207F3912298.037. 
120. SN0209F3912298.040 MEASUREMENTS OF DISPLACEMENT DATA FOR THE DRIFT SCALE TEST (WITH 
RESULTS FROM 1/15/2002 THROUGH 6/30/2002) 
DTN submittal post-dates ANL-NBS-HS-000041, 
Rev. 0. 
121. SN0209F3912298.041 MEASUREMENTS OF STRAIN DATA FOR THE DRIFT SCALE TEST (WITH RESULTS FROM 
1/15/2002 THROUGH 6/30/2002) 
DTN submittal post-dates ANL-NBS-HS-000041, 
Rev. 0. 
122. SN0209F3912298.042 MEASUREMENTS OF DISPLACEMENT DATA FOR THE DRIFT SCALE TEST CORRECTED 
FOR THERMAL EXPANSION (WITH RESULTS FROM 1/15/2002 THROUGH 6/30/2002) 
DTN submittal post-dates ANL-NBS-HS-000041, 
Rev. 0. 
123. SN0209F3912298.043 MEASUREMENTS OF STRAIN DATA FOR THE DRIFT SCALE TEST CORRECTED FOR 
THERMAL EXPANSION (WITH RESULTS FROM 1/15/2002 THROUGH 6/30/2002) 
DTN submittal post-dates ANL-NBS-HS-000041, 
Rev. 0. 
124. SN0210F3903102.004 DRIFT SCALE TEST WATER SAMPLING (RESULTS FROM 1/16/2002 THROUGH 4/4/2002) DTN submittal post-dates ANL-NBS-HS-000041, 
Rev. 0. 
125. SN0211F3903102.005 DRIFT SCALE TEST WATER SAMPLING (RESULTS FROM 4/25/2002 THROUGH 8/28/2002) DTN submittal post-dates ANL-NBS-HS-000041, 
Rev. 0. 
126. SN0303F3903102.006 DRIFT SCALE TEST WATER SAMPLING (RESULTS FROM 10/7/2002 THROUGH 2/18/2003) DTN submittal post-dates ANL-NBS-HS-000041, 
Rev. 0. 
127. SN0303F3912298.044 MEASUREMENTS OF DISPLACEMENT DATA FOR THE DRIFT SCALE TEST (WITH 
RESULTS FROM 7/1/2002 THROUGH 12/31/2002) 
DTN submittal post-dates ANL-NBS-HS-000041, 
Rev. 0. 
128. SN0303F3912298.045 MEASUREMENTS OF STRAIN DATA FOR THE DRIFT SCALE TEST (WITH RESULTS FROM 
7/1/2002 THROUGH 12/31/2002) 
DTN submittal post-dates ANL-NBS-HS-000041, 
Rev. 0. 
129. SN0303F3912298.046 MEASUREMENTS OF DISPLACEMENT DATA FOR THE DRIFT SCALE TEST CORRECTED 
FOR THERMAL EXPANSION (WITH RESULTS FROM 7/1/2002 THROUGH 12/31/2002) 
DTN submittal post-dates ANL-NBS-HS-000041, 
Rev. 0. 
130. SN0303F3912298.047 MEASUREMENTS OF STRAIN DATA FOR THE DRIFT SCALE TEST CORRECTED FOR 
THERMAL EXPANSION (WITH RESULTS FROM 7/1/2002 THROUGH 12/31/2002) 
DTN submittal post-dates ANL-NBS-HS-000041, 
Rev. 0. 

TDR-MGR-HS-000002 REV 00 4-29 September 2004 
Table 4-6. Drift Scale Test  Other DTNs (Continued) 
DTN TITLE DISPOSITION 
131. SN0308F3912298.050 MEASUREMENTS OF DISPLACEMENT DATA FOR THE DRIFT SCALE TEST (WITH 
RESULTS FROM 1/1/2003 THROUGH 6/30/2003) 
DTN submittal post-dates ANL-NBS-HS-000041, 
Rev. 0. 
132. SN0308F3912298.051 MEASUREMENTS OF STRAIN DATA FOR THE DRIFT SCALE TEST (WITH RESULTS FROM 
1/1/2003 THROUGH 6/30/2003) 
DTN submittal post-dates ANL-NBS-HS-000041, 
Rev. 0. 
133. SN0308F3912298.052 MEASUREMENTS OF DISPLACEMENT DATA FOR THE DRIFT SCALE TEST CORRECTED 
FOR THERMAL EXPANSION (WITH RESULTS FROM 1/1/2003 THROUGH 6/30/2003) 
DTN submittal post-dates ANL-NBS-HS-000041, 
Rev. 0. 
134. SN0308F3912298.053 MEASUREMENTS OF STRAIN DATA FOR THE DRIFT SCALE TEST CORRECTED FOR 
THERMAL EXPANSION (WITH RESULTS FROM 1/1/2003 THROUGH 6/30/2003) 
DTN submittal post-dates ANL-NBS-HS-000041, 
Rev. 0. 
135. SN0311F3903102.007 DRIFT SCALE TEST WATER SAMPLING IN ALCOVE 5 (RESULTS FROM 4/3/2003 THROUGH 
10/7/2003) 
DTN submittal post-dates ANL-NBS-HS-000041, 
Rev. 0. 
136. SNF39012298002.001 EVALUATION AND COMPARATIVE ANALYSIS OF THE DRIFT SCALE TEST THERMAL AND 
THERMOMECHANICAL DATA: FIRST QUARTER RESULTS (12/3/1997 THROUGH 2/28/1998) 
DTN developed for other purpose or 
analysis/model report. 
137. SNL22100196001.001 THERMAL EXPANSION AND THERMAL CONDUCTIVITY OF TEST SPECIMENS FROM THE 
DRIFT SCALE TEST AREA OF THE EXPLORATORY STUDIES FACILITY AT YUCCA 
MOUNTAIN, NEVADA. 
Superseded by SN0203L2210196.007. 
138. UN0006SPA013GD.002 DST REKA PROBE DEVELOPED DATA FOR THERMAL CONDUCTIVITY AND DIFFUSIVITY 
FOR THE PERIOD 8/28/1998 TO 11/28/1999 
Superseded by UN0106SPA013GD.004. 
139. UN0006SPA013GD.001 DST REKA PROBE ACQUIRED DATA FOR THERMAL CONDUCTIVITY AND DIFFUSIVITY 
FOR THE PERIOD 12/04/1997 TO 11/28/1999 (HEATED MEASUREMENTS FOR BOREHOLES 
151, 152, AND 153.) 
Superseded by UN0106SPA013GD.003. 

INTENTIONALLY LEFT BLANK 

5. ASSUMPTIONS 
There are no assumptions considered in this report. The following assumptions are listed for 
informational purposes only. These assumptions were originally included in ANL-NBS-HS-
000041, Thermal Testing Measurements Report (BSC 2002 [DIRS 160771]). A few groups of 
measurements required more extensive data reduction. Assumptions associated with the data 
reduction in ANL-NBS-HS-000041, Thermal Testing Measurements Report (BSC 2002 [DIRS 
160771]), are discussed below. 
5.1 AIR PERMEABILITY ANALYSIS 
Assumption: The development of air permeabilities from air-injection flow rates and pressure 
responses assumes that a) air behaves as an ideal gas, b) a finite line source can represent a 
borehole injection interval, and c) air flows are governed by Darcys law. 
Basis: The following discussion pertains to measurements described in Sections 6.2.2.4 and 
6.3.2.4. Based on the detailed discussion below, further confirmation of this assumption is not 
required. 
During air-injection testing, local permeability is estimated from the steady-state pressure 
response to a constant flow rate gas injection. An analytical solution for the steady-state pressure 
response of a constant flow rate injection in a finite line source is applied to estimate gas 
permeability near the well bore. The solution was adapted from the steady-state analytical 
solution for ellipsoidal flow of incompressible fluid from a finite line source (Hvorslev 1951 
[DIRS 101868]) in an infinite medium (L/rw >> 1) and is as follows: 
L
...
... 
T 
)T
SC 
Q P 
SC SC

ln 
P1 
f
r
k
=
(Eq. 5.1-1)
2 
2
p
P L 
(
-
2 
where: 
k = permeability (m2) 
PSC 
QSC 
= 
= 
pressure at standard conditions (1.013  105 Pa) 
flowrate at standard conditions (m3/s) 

= dynamic viscosity of air (1.81  10-5 Pa  s at 20C) 
L = length of air injection zone (m) 
rw = radius of borehole (m) 
Tf = temperature of formation (K) 
P2 = steady state pressure (Pa) 
P1 = ambient pressure (Pa) 
TSC = temperature at standard conditions (293.16 K) 

Equation 5.1-1 is discussed in Section 8.1.1.1 of Single Heater Test Final Report 
(CRWMS M&O 1999 [DIRS 129261]). It assumes a finite length and finite radius cylindrical 
injection source, surrounded by a homogeneous medium of infinite extent. In cases where the 
assumptions of an effective continuum are not valid, Equation 5.1-1 still yields a useful 
quantitative value that reflects the rock-mass gas injectivity. Here injectivity is defined as a 
measure of the formations ability to permit gas flow. Changes in permeability (or formation 
injectivity) during heating and cooling are indicative of changes in fracture liquid saturation, or 
opening and closing of fractures from thermal-hydrological-mechanical (THM) coupling. As 
fracture saturation increases or fractures close, gas injectivity decreases. Similarly, a decrease in 
fracture liquid saturation or increase in fracture opening will lead to an increase in gas injectivity. 
For both the SHT and DST, changes in permeability will be reported as a ratio of measured 
permeability to the baseline value, established prior to the start of heating. 
The user of the permeability estimates should understand the limitations of a continuum model in 
interpreting measurements performed in a heterogeneous formation, such as the Topopah Spring 
middle nonlithophysal tuff. An example of model limitations is a block of rock that contains 
only a single transmissive feature. An injection test can be performed with a straddle packer that 
spans length L of a formation that includes this single transmissive feature, leading to an estimate 
of permeability, k. If a shorter injection interval is tested, for example L/10, where this same 
single transmissive feature is straddled, it is erroneous to assume that Equation 5.1-1 will provide 
an accurate estimate of formation permeability. However, by repeatedly performing 
measurements using the same testing configuration, changes in permeability can be tracked as 
thermal testing proceeds. For both the SHT and the DST, the air permeability test intervals were 
kept fixed between quarterly air-injection tests, excluding the DST zones that varied as a result 
of pneumatic-packer failures. 
5.2 MULTIPOINT BOREHOLE EXTENSOMETER (MPBX) DISPLACEMENTS 
AND STRAIN ANALYSIS FOR THE DRIFT SCALE TEST 
Note: The following discussion and figures are provided for informational purposes. Data 
summarized in the two Summary DTNs: SN0207F3912298.037 [DIRS 162046] and 
SN0208F3912298.038 [DIRS 170610] was determined to be unqualified due to lack of data 
traceability. 
Assumption: It is assumed that noisy/erratic data can be eliminated on the basis of 
smoothing. 
Basis: The following discussion pertains to measurements described in Section 6.3.3.1. Based 
on the detailed discussion below, further confirmation of this assumption is not required. 
The MPBX and strain data are meant to provide a measure of rock deformation caused by 
thermal expansion and mechanical stresses in the rock surrounding the Heated Drift. The MPBX 
and strain data were expected to have a smooth appearance, with any discontinuities likely 
relating to sudden movements along fractures. However, many of the data traces exhibit noise 
which makes the data difficult to read and interpret. 

In general, there are two types of noise that have been identified in the MPBX data. One type is 
identified by either an oscillating mean value with no discernable pattern, or by values that go 
outside the expected range (e.g., based on comparison to similar instrumentation) of 
displacement values. In these cases, the gage readings are either temporarily or permanently 
inaccurate (e.g., data between day 350 and day 550 in Figure 5.2-1). The second type is 
identified by data that has a discernable pattern (typically, the pattern would follow a curve fit to 
the top edge of the data on a displacement-versus-time curve), and the data oscillates at values 
below the predominant curve (e.g., data after day 600 in Figure 5.2.1). 
A closer examination of the individual MPBXs revealed the following generalizations: 
 
Displacement and temperature data in boreholes collared in the crown (MPBXs 3-5, 7-9, 
11-13) had substantial oscillations with this pattern. 
 
Temperature data in boreholes collared in the invert (MPBXs 6, 10, 14) had almost no 
unusual oscillations. 
The examination of temperature data from MPBX boreholes collared in the crown reflected a 
peculiar unidirectional nature to the oscillations in the temperature data. When the mean 
temperature was below the boiling point (96C), the oscillations were upward to a ceiling of 
96C. Similarly, for mean temperatures above 96C, the oscillations were downward to a floor 
of 96C. Furthermore, it was noted that these oscillations were occurring in the MPBXs collared 
in the crown (3-5, 7-9, 11-13), and not in those collared in the invert (6, 10, 14). 
Apparently, the oscillations in the displacement data are affected by temperature oscillations in 
the MPBX borehole, caused by water recirculation within the borehole. Water vapor enters the 
borehole above the boiling isotherm. This is possible, even though the MPBX boreholes were 
lined with aluminum/Teflon coated tubing, because gaps in the liner were required for anchor 
placement. The thermocouples (TCs) at locations far above the collar experience water 
condensation, which raises temperatures toward the ceiling at 96C. The liquid water then falls 
down the borehole where there are sufficient gaps around the anchors for liquid water to pass 
through. Eventually, this water vaporizes in the regions closer to the Heated Drift, causing 
temperatures there to drop to the 96C floor. The circulating fluid, which alternately boils, rises, 
condenses, and falls in a cyclic fashion in the borehole, causes the Invar connecting rods to 
shrink/expand, resulting in changes in voltages in the linear variable displacement transducers 
(LVDTs), which correspond to the temperature changes. The changing temperatures at the 
MPBX head also affect the calibration constants of the LVDTs based on the temperature at the 
collar. It is thought that the surrounding rock mass is negligibly affected by these temperature 
oscillations, and thus the oscillating MPBX measurements do not represent the actual rock 
behavior. To use the MPBX data to validate thermal-mechanical models, or to use them to 
derive rock-mass thermal-mechanical properties, the true rock-mass behavior must somehow be 
extracted from the noisy data. There are several issues that complicate the development of a 
straightforward algorithm for smoothing the MPBX data: the contraction/expansion of the Invar 
rods, the effect of temperature on the LVDT, the need to capture fracture deformation events, 
and other causes of unlikely data values. Therefore, development of a straightforward algorithm 
was not pursued. Rather, an approach using visual inspection of the data and technical 
assessment was implemented that produced smooth data that can be used to validate thermal-

mechanical models. Under this approach, the acquired MPBX measurements from the LVDTs, 
as calculated by the Data Collection System, were corrected for the thermal expansion of the 
Invar connecting rods in essentially the same manner as the developed MPBX data that are 
regularly submitted to the TDMS. The acquired MPBX and temperature data, and the corrected 
MPBX data, were listed in an Excel spreadsheet, one for each MPBX. Based on the technical 
judgment of the analyst, sections of data that were considered unusable were deleted. Typically, 
these data were the results of a problem with the gage itself (failure, erratic voltage readings, 
etc.). Other sections of noisy data were identified using a 0.3 mm difference between values at 
six-hour intervals using standard Excel functions. If the behavior of the identified data matched 
the assumed behavior caused by the recirculating water, then that range of values was discarded. 
Figures 5.2-1 through 5.2-3 show the original thermally corrected displacement data, temperature 
data, and smoothed data for MPBX9. 
While discarding data, information was retained which represented other physical processes such 
as fracture slippage or closure while still allowing for a reduction of the MPBX data to a 
reasonable and functional format. This procedure for smoothing the MPBX data was used for 
MPBX data through 7/31/2000 (i.e., through 971 days of heating). The maximum (or minimum, 
where applicable) value for consecutive ten-day windows was taken from the data to provide a 
less data intensive format for modeling purposes. Figure 5.2-3 shows the final smoothed data for 
MPBX9. The erratic data noted in Figure 5.2-1 were removed from the smoothed data file, 
resulting in the gap noted in Figure 5.2-3. The Summary DTN for all smoothed DST MPBX 
data for the heating phase of the DST is provided in Table 6.3-1. 
The strain data (measured on the surface of the cast-in-place concrete liner) were also smoothed. 
The noisy/erratic strain data were smoothed by retaining the maximum value. The Summary 
DTN for all smoothed DST strain data for the DST heating phase is provided in Table 6.3-1. 

DTNs: SNF39012298002.002 [DIRS 159114], SNF39012298002.006 [DIRS 158419], SNF39012298002.010 [DIRS 
158367], SN0001F3912298.014 [DIRS 153841], SN0007F3912298.018 [DIRS 158373], 
SN0101F3912298.024 [DIRS 158400], SN0107F3912298.029 [DIRS 158408], SN0203F3912298.033 [DIRS 
158361]. 
Figure 5.2-1. Original Thermally Corrected Displacement Data for DST Borehole 156 (MPBX9) 
DTNs: MO9807DSTSET01.000 [DIRS 113644], MO9810DSTSET02.000 [DIRS 113662], MO9906DSTSET03.000 
[DIRS 113673], MO0001SEPDSTPC.000 [DIRS 153836], MO0007SEPDSTPC.001 [DIRS 153707], 
MO0012SEPDSTPC.002 [DIRS 153708], MO0107SEPDSTPC.003 [DIRS 158321], MO0202SEPDSTTV.00 
[DIRS 158320]. 
Figure 5.2-2. Temperature Data for DST Borehole 156 (MPBX9) 

DTN: SN0207F3912298.037 [DIRS 162046] (unqualified). 
Figure 5.2-3. Final Smoothed Displacement Data for DST Borehole 156 (MPBX9) 

6. DISCUSSION OF MEASUREMENTS 
In general, the discussions which follow were taken from ANL-NBS-HS-000041, Thermal 
Testing Measurements Report (BSC 2002 [DIRS 160771]), and modified as necessary for this 
report. Section 6.3.4.5, Chemical Effects of Introduced Materials in the Drift Scale Test, has 
been updated with new information for this report. 
The scientific phenomena investigated is the thermal-hydrological-mechanical-chemical 
behavior measured in each of the three thermal tests (LBT, SHT, and DST). Parameters in this 
report reflect laboratory and field measurements that characterized the respective test blocks for 
each of the three thermal tests. As discussed in Section 1, data collected within the YMP 
Thermal Testing Program must be readily usable to end users.. Since either detailed level-3 and 
level-4 reports exist or the measurements are straightforward, only brief discussions are provided 
for each data set. These brief discussions for different data sets are intended to impart a clear 
sense of applicability of data, so that end users will be able to use and interpret these data 
properly within the context of measurement uncertainty. This approach also keeps the report to a 
manageable size, an important consideration since it encompasses nearly all measurements for 
three long-term thermal tests. As appropriate, thermal testing data currently residing in the 
TDMS have been reorganized and reformatted into Summary DTNs. In many cases, these 
Summary DTNs contain test data sampled on a more infrequent basis (e.g., every 10 days) than 
the actual data obtained from testing (e.g., every hour). This serves to make the Summary DTN 
data sets more manageable when used for modeling purposes. In some cases, there was no need 
to reformat or restructure existing DTNs so they remained unchanged. 
Discussion of the thermal testing measurements in this report is organized first under the heading 
of the three tests: LBT, SHT, and DST; and then under the four processes: thermal (T), 
hydrological (H), mechanical (M), and chemical (C). Miscellaneous measurements and 
observations are also discussed. Although the list of measurement types is comprehensive, it is 
neither practical (because of finite report length) nor necessary to thoroughly discuss all data 
sets. For example, the DST-measured temperatures come from nearly 2,700 thermal sensors 
distributed throughout the test block and collected on an hourly basis, resulting in approximately 
100 million measurements. Therefore, as appropriate for each measurement type, only a 
representative discussion of the test data behavior is presented. Readers are referred to the 
Summary DTNs for comprehensive data sets that include complementary graphics. 
The following discussions concerning the 12 basic measurement groups (three thermal tests and 
four processes) are dictated by their respective data characteristics. In general, discussions of 
thermal and mechanical measurements tend to be comparatively short, although the respective 
Summary DTNs contain comparatively large amounts of data. This condition reflects the 
inherent straightforwardness of temperature and displacement measurements that are recorded 
frequently (hourly) on a data acquisition system. Conversely, discussions of hydrological and 
chemical measurements tend to be lengthier, while their Summary DTNs are comparatively 
small. The smaller output data sets result from measurements collected comparatively 
infrequently (monthly or longer) on a nonintegrated data acquisition system. The more lengthy 
discussion in the chemical measurements sections relates to sampling procedures that have 
relevance to the data collected. Also, in certain hydrological measurements, detailed 

explanations are needed for the complex reduction that occurs as the data are transformed into 
Summary DTNs. 
In addition, uncertainty associated with most measurements is discussed. These discussions of 
uncertainty are restricted to actual measurements and data reduction. Standard error analyses 
(mean and standard deviation) were provided for applicable measurements such as repetitive 
measurements of laboratory or field parameters. Test measurements of a response for a specific 
location and time are not applicable for standard error analyses. Additional information on 
measurement uncertainties can be located via directions in DTNs cited in the first footnote of 
Tables 4-1, 4-2, and 4-3. This information, among other things, provides detailed discussions of 
scientific notebooks and calibration relationships relevant to uncertainties of thermal testing 
measurements. The approach taken provides sufficient discussion of uncertainties for end-users 
of thermal testing measurements such as process modelers. In cases where uncertainty is 
redundant among two or all three thermal tests, the initial discussion of uncertainty is referenced. 
Also included in this report are summaries of three white papers involving in-depth 
investigations of unexpected or unusual DST behavior. Summaries are found in Sections 6.3.2.6 
and 6.3.4.5. 
6.1 LARGE BLOCK TEST 
The Large Block Test (LBT) was a controlled test to provide data for a better understanding of 
the coupled thermal-hydrologic-mechanical-chemical processes in a heated unsaturated rock 
mass. The LBT was conducted at the outcrop of the middle nonlithophysal unit of the Topopah 
Spring Tuff (Tptpmn) at Fran Ridge, Nevada. A column of the rock mass 3  3  4.5 m high 
was isolated from the outcrop at the eastern slope of Fran Ridge (See Figure 6.1-1). The base of 
the column is still connected to the ground. The block was heated from February 28, 1997, to 
March 10, 1998. A natural cooling phase started on March 10, 1998, until the termination of the 
data acquisition on September 30, 1998. 
Tables 4-1 and 6.1-1 provide a listing of LBT Input DTNs and Summary DTNs, respectively. 
The Summary DTNs provide either test measurements or parameter values and related graphics 
and coordinates of the sensors used in the test measurements. Table 4-1 also provides the 
qualification status of the measurements. For ease of thermal modeling, a one-dimensional 
thermal field (having a thermal gradient dependent only on the z direction) within the block was 
created by line heaters used to simulate a planar heat source located at a height of approximately 
one-third of the total height of the block (1.75 m from the base of the block). A heat exchanger 
system was used to maintain a constant temperature, about 60C, on the top surface of the block. 
This system consisted of an aluminum plate fitted with heating/cooling coils mounted on the top 
of the block. This plate was connected to a heat exchanger to allow thermal control of the top 
surface. 
To achieve a one-dimensional thermal-hydrological process in the z (up) direction, a layer of 
room-temperature vulcanized (RTV) rubber and Viton was installed on the block sides to 
minimize moisture flux. Three layers of thermal-insulation materials were installed on the 
outside of the moisture barrier. All of the sensor boreholes were sealed by cement grout, 
packers, or an RTV/ Teflon membrane. 

Sensors in the block measured heater power, temperature, moisture content, mechanical 
deformations, thermal conductivity and diffusivity, relative humidity, and gas pressure. Air 
permeability was measured before the heating and at the end of the heating phase. Figures 6.1-2 
to 6.1-5 (DTN: LL981110704244.085 [DIRS 169259], unqualified) show the sensor boreholes 
in the top and sides of the block. There are no sensor boreholes in the south side of the block. 
The assessment of the chemical process in the block was achieved by comparing the 
mineralogical changes in the core samples obtained before and after the test. Small blocks of the 
rock were obtained from the proximity of the large block for conducting laboratory tests to 
determine hydrologic and mechanical properties. Microbial survivability and migration were 
also investigated. These measurements and observations are described in greater detail in the 
following sections. Table 6.1-2 shows the XYZ coordinates of the collar and bottom of all of the 
boreholes in the LBT. 
The LBT data collection system (DCS) recorded thermal and mechanical data hourly for the 
most part. The acquired data consist of both original (measured electronic) values and converted 
(engineering units) values. Two packages of data were submitted to the Records Processing 
Center (RPC) and corresponding DTNs (LA0106FH831151.002 [DIRS 158230] and 
LA0106FH831151.003 [DIRS 158229]) were also obtained. These DCS DTNs are unqualified. 
These DCS DTNs also identify scientific notebooks that provide details of LBT measurements 
including calibration information. DCS DTNs are reduced and re-structured and periodically 
submitted to the TDMS, resulting in many of the Input DTNs introduced below and listed in 
Table 4-1. As discussed in Sections 1 and the introduction to Section 6, these Input DTNs are 
further refined, reduced, and restructured before being resubmitted to the TDMS as Summary 
DTNs (see Table 6.1-1). 
6.1.1 LBT Thermal Measurements 
The block was heated by electrical heaters in the five heater boreholes, which formed a 
horizontal plane 1.75m from the base of the block. The heater boreholes are EH1 to EH5 as 
shown in Figure 6.1-4. The temperature was measured in boreholes within the block as well as 
on the block surfaces. The temperature boreholes within the block are shown as TT1 and TT2 in 
Figure 6.1-2, NT1 to NT4 in Figure 6.1-3, and WT1 to WT3 in Figure 6.1-5. In situ thermal 
conductivity [k] and diffusivity [a] were measured by using Rapid Evaluation of K and Alpha 
(REKA) probes in three boreholes. The REKA boreholes are TR1 in Figure 6.1-2 and WR1 and 
WR2 in Figure 6.1-5. The following sections present the heater power, temperature, and thermal 
conductivity and diffusivity of the block. 
A detailed discussion of the LBT thermal measurements is provided in Section 5 of Large Block 
Test Final Report (Lin et al. 2001 [DIRS 159069]). Input DTNs and Summary DTNs for 
thermal measurements are provided in Tables 4-1 and 6.1-1, respectively. 
6.1.1.1 Heater Power 
6.1.1.1.1 Results: Heater Power 
The heater in each of the five heater boreholes (EH1 to EH5 as in Figure 6.1-4) was energized to 
450 W on February 28, 1997. The power output of one of those heaters as a function of time is 

shown in Figure 6.1.1.1-1, as an example. The power output of the other heaters was similar to 
this one. Spikes in this figure were due to short-duration power outages, which did not affect the 
test significantly. Data gaps were caused by malfunction of the data acquisition unit. The power 
was maintained approximately constant, at about 450 W, until about day 222, when the power 
was reduced to reach a near steady-state temperature in the block. The temperature at TT1-14 
was maintained fairly constant at about 135C (see Figure 6.1.1.2-1) for the remainder of the 
test. Toward the end of the test, the power had to be increased back to nearly 450 W to maintain 
the 135C temperature in the test block. This may have been caused by a cooler ambient 
temperature at that time. The heater power data are in the Technical Data Management System 
(TDMS) under DTN: LL980918904244.074 [DIRS 135872]. This DTN is unqualified and 
should only be used for corroborative purposes. 
6.1.1.1.2 Measurement Uncertainty: Heater Power 
The accuracy of the watt transducers used in measuring the heater power is conservatively 
estimated to be within 2 percent at 500 W full span. This degree of uncertainty is considered 
typical. The uncertainty is less than the power fluctuations associated with routine oscillations of 
power supply from the local utility as shown in Figure 6.1.1.1-1. 
6.1.1.2 Temperatures 
The temperature measurements included the spatial and temporal variation of the temperature in 
the block and the thermal gradient on the block surfaces. Resistance temperature devices 
(RTDs) were used to measure temperatures in the block and on the block surface. Within the 
block, temperature was measured in nine resistance temperature device (RTD) boreholes and 
five heater boreholes: TT1 and TT2, NT1 to NT4, EH1 to EH5, and WT1 to WT3, as shown in 
Figures 6.1-2 to 6.1-5, respectively. The RTD boreholes were instrumented with RTDs at 20-cm 
spacing. This was accomplished by grouting a bundle of RTDs with cement in each of the 
temperature boreholes. The RTD numbering always started from the bottom of a borehole. For 
example, TT1-1 is the RTD at the bottom of the vertical RTD borehole TT1, and NT1-14 is the 
RTD near the collar of the horizontal RTD borehole NT1, which was drilled from the north face 
of the block to a distance of about 30 cm from the south face of the block. In addition, five 
RTDs were placed in a thin-walled stainless-steel tube to test the feasibility of their being 
calibrated or replaced during the test. The stainless-steel tube was grouted along with the RTD 
bundle in borehole TT1. Three RTDs were placed in each of the five heater boreholes 
approximately 0.6, 1.5, and 2.4 m from the collar. The thermal gradient to determine heat flux 
out of the block across the block surface was measured by a pair of RTDs on both sides of a 1.2-
cm-thick Ultratemp insulation panel. Ultratemp panels were mounted in zones on the four 
vertical faces of the block, on the outside of the Viton sheet. Temperature measurements on the 
top of the block were performed to verify that the heat exchanger controlled the top temperature 
at about 60C during the test. 
For the discussion of the temperatures within the block during the test, only the temperature 
measured in the grouted boreholes will be used because they directly measure thermal behavior 
of the rock. The entire set of the temperature data is available in the TDMS under the DTN: 
LL980918904244.074 [DIRS 135872]. This DTN is unqualified and should only be used for 
corroborative purposes. 

6.1.1.2.1 Results: Temperatures 
The spatial distribution of the temperature in the LBT shows that the block was heated nearly 
unidirectionally in the z direction. The temperature in the two vertical RTD boreholes will be 
used to illustrate the temperature history in the block during the test. Figures 6.1.1.2-1 and 
6.1.1.2-2 show the temperature history at RTDs TT1-14 and TT2-14, respectively. TT1-14 and 
TT2-14 are at 5 and 10 cm below the heater plane, respectively. The location of boreholes TT1 
and TT2 can be found in Figure 6.1-2. The temperatures at TT1-14 are about 10C higher than 
those at TT2-14, mainly because TT1-14 is about 5 cm closer to the heater plane than TT2-14. 
Sharp drops in temperature that occurred before 100 days since heating began are related to 
power outages. An anomalous reading of 246.9C was noted for TT2-14 on the 145th day of 
heating. TT1-14 represents the highest measured temperature in the rock of the LBT. 
As shown in Figure 6.1.1.2-1, the temperature at TT1-14 increased rapidly with time at the early 
stages of the heating. The temperature increased mainly from heat conduction. Rate of increase 
for the temperature decreased with time, mainly because of the decrease in thermal gradient at 
the RTD location as the thermal front expanded with time. When the temperature reached the 
boiling point of water, which is about 96C at the elevation of Fran Ridge, the rate of 
temperature increase was significantly decreased. This decrease was caused by consumption of 
energy in the vaporization of the pore water in the rock. During the 20-day period between day 
30 and day 50, the temperature at TT1-14 increased from about 96C to about 98C. After day 
50, the temperature at TT1-14 increased faster with time, indicating that most of the pore water 
had vaporized. Then, at day 105 (June 13, 1997) the temperature dropped to near the boiling 
point of water. This is the onset of the first of the two thermal-hydrological (TH) events. The 
second TH event occurred at day 186 (September 2, 1997). The temperature fluctuations in 
those TH events indicated condensate refluxing. On day 220 (October 6, 1997), the heater power 
started to ramp down to keep the TT1-14 temperature at approximately 137C. The heaters were 
turned off on March 10, 1998, to start a natural cooling phase. The data acquisition was 
terminated on September 30, 1998. 
Figure 6.1.1.2-2 shows a temperature history at TT2-14 similar to that of TT1-14. The 
temperature at TT2-14 remained at 97.4C for about 37 days (day 75 to day 112). Then the 
temperature increased to, and remained at, about 99C for 16 days. Because the temperature at 
TT2-14 was at the boiling point of water when the first TH event occurred, the temperature at 
TT2-14 was not affected by that event. The rest of the temperature history at TT2-14 was very 
similar to that at TT1-14. 
6.1.1.2.2 Measurement Uncertainty: Temperatures 
The accuracy of the RTD is within 0.3C (CRWMS M&O 1997 [DIRS 101540], Section 5.1). 
With consideration of other factors, such as the location of the RTDs, the accuracy of the 
measured temperature in the LBT is estimated to be within 1.5C. The RTD bundles were 
grouted in the boreholes; therefore, some of the RTDs may not have had direct contact with the 
borehole wall. Additional uncertainty may be introduced into the heat flux calculation. The heat 
flux of a region is represented only by the measurement at one point. 

6.1.2 LBT Hydrological Measurements 
The hydrologic measurements presented in this section include the field-measured moisture 
content, gas pressure, relative humidity, air permeability, and the laboratory-determined 
hydrologic parameters. The moisture content in the block was determined by electrical 
resistance tomography (ERT) and neutron logging. Neutron logging provides accurate 
determination of the moisture content within about a 10-cm radius distance from a borehole. The 
ERT provides two-dimensional distribution of the moisture content on a larger scale with less 
accuracy. The two methods were used to complement each other. Neutron logging was 
conducted periodically in 15 neutron boreholes: TN1-TN5 (Figure 6.1-2), NN1-NN6 (Figure 
6.1-3), and WN1-WN4 (Figure 6.1-5). ERT electrodes were mounted in the vertical ERT 
borehole near the center of the block top and on the block sides. ERT was also conducted on the 
large block periodically. Gas pressure and relative humidity were monitored in the four 
hydrologic boreholes: TH1 (Figure 6.1-2), NH1 (Figure 6.1-3) and WH1-WH2 (Figure 6.1-5). 
Air permeability was measured in the hydrologic borehole TH1 before the block was cut, before 
the heating started, and at the end of the heating phase. Cross-borehole permeability between 
some of the boreholes was also measured before heating. 
Small blocks of the rock were collected in the proximity of the large block for laboratory tests of 
parameters. These include density, porosity, water permeability, moisture-retention curves, and 
fracture flow and matrix-imbibition visualization using X-ray radiography. 
A detailed discussion of the LBT hydrological measurements is provided in Section 6 of Large 
Block Test Final Report (Lin et al. 2001 [DIRS 159069]). Input DTNs and Summary DTNs for 
hydrological measurements are provided in Tables 4-1 and 6.1-1, respectively. 
6.1.2.1 Electrical Resistance Tomography (ERT) 
ERT is a geophysical imaging technique that can be used to map subsurface resistivity (Daily 
and Owen 1991 [DIRS 159126]; Lin et al. 2001 [DIRS 159069], pp. 6-3 and 6-6). The ERT 
measurements consisted of a series of voltage and current measurements from buried electrodes, 
using an automated data collection system. The data were then processed to produce ERT 
tomograms. The images of resistivity change can be used, along with the measured temperature 
field and what is known of initial conditions in the rock mass, to estimate moisture change 
during heating. ERT electrodes were placed at approximately 0.3 m spacing in horizontal and 
vertical grooves on all four sides of the block, as shown in Figures 6.1.2.1-1 and 6.1-4, and along 
the bore ERT (Figure 6.1-2). This arrangement of electrodes allowed imaging of two 
intersecting perpendicular vertical planes and two parallel horizontal planes, about 1.25 m above 
and below the horizontal heater plane. 
The ERT tomograms can be found in the TDMS under the DTNs: LL980913304244.072 [DIRS 
145385] and LL981001604244.079 [DIRS 158261], and represent data obtained between 
February 1997 and March 1998. Some of the resistivity images reconstructed late in the 
experiment (and the moisture changes inferred from them) are questionable because of the sparse 
data. As the rock mass dehydrated, the contact impedance between the electrodes and the rock 
increased dramatically, and data quality declined. Having fewer usable data results in a poorly 

constrained reconstruction that might look smeared or washed out. This is particularly 
noticeable in the vertical planes beginning early in 1998. 
6.1.2.1.1 Data Processing 
Section 6.1.2.1 of Large Block Test Final Report (Lin et al. 2001 [DIRS 159069]) provides 
detailed descriptions of the ERT methodology and data reduction procedures. Some of the 
important features of the two-dimensional algorithm used for ERT are briefly described. The 
algorithm (LaBrecque et al. 1996 [DIRS 159047]) solves both the forward and inverse problems 
to find the smoothest resistivity model that fits the field data to a prescribed tolerance. 
Resistivity values assigned in this way to each pixel in the mesh constitute the ERT tomograms. 
Although the mesh is of a large region around the electrode arrays, only the region inside the 
ERT electrode array is used in the calculations of moisture content, because the region outside 
the array is poorly constrained by the data. 
The ratio of the measured electrical resistivity data during the test (both the heating phase and the 
cooling phase) to that of the preheating phase is chosen to represent the changes in the rocks 
electrical resistivity. This was done pixel by pixel within the image plane. This approach tends 
to reduce the effects of anomalies that do not satisfy the two-dimensional assumptions of the 
resistivity model. Three-dimensional effects tend to cancel in the ratio, since these effects are 
contained in both preheating and heating/cooling data. 
Resistivity of the rock is influenced by changes in moisture content, porosity, cation exchange 
capacity, solutes in the pore water, and temperature. Moisture content and temperature effects 
are expected to be most significant. An increase in temperature or moisture causes a resistivity 
decrease. However, there may be regions where the increasing temperature and decreasing pore-
water resistivity were opposed by the rock mass drying, which increases the resistivity. The goal 
in this section is to use the images of resistivity change along with the measured temperature to 
estimate moisture change during the test. See Section 6.1.2.1.2 of Large Block Test Final Report 
(Lin et al. 2001 [DIRS 159069]) for a detailed description of how the changes in moisture 
content were calculated from the resistivity changes. 
Waxman and Thomas (1974 [DIRS 101736]) describe a model for electrical conduction in 
partially saturated shaly sands typical of oil reservoirs (intended for oil field data) that accounts 
for conduction through the bulk pore water as well as conduction through the electrical double 
layer near the pore surface. This model can predict temperature dependence of the resistivity, 
but several of the model parameters must be empirically determined and are not available for 
tuff. Roberts and Lin (1997 [DIRS 101710]) suggest that the Waxman-Thomas model provides 
reasonably good estimates of resistivity for saturations greater than 20 percent. Waxman-
Thomas model 1 converts the electrical resistivity changes to saturation changes, assuming that 
the primary pathway of electrical current is through the water in the open pore space; Waxman-
Thomas model 2 assumes that the primary pathway is through the double layer. 
Changes in saturation are estimated by using both models 1 and 2 (Waxman and Thomas 1974 
[DIRS 101736]). This approach should provide bounds to the domain of possible saturations 
that may be present. However, if the cation exchange capacity, porosity, or water resistivity 
varies significantly across the ERT image plane, it is possible that model 1 results would be more 

accurate. Model 1 is believed to be more representative of the rock mass for two reasons. First, 
the saturation estimates based on this model are in better agreement with those of the neutron log 
where those data are available. Second, model 2 occasionally predicts a saturation greater than 
1, a nonphysical result. For that reason, only the saturation change tomograms of model 1 are 
presented in DTN: LL980913304244.072 [DIRS 145385]. 
6.1.2.1.2 Results: ERT 
Figure 6.1.2.1-2 shows the saturation ratios (defined as current moisture content to preheating 
initial moisture content) in the two horizontal planes. Blank spaces indicate data sets that did not 
converge. The changes in moisture content initially are very small and increase in magnitude 
and extent as the test proceeds. Through June 25, 1997 (117 days into heating), the upper plane 
(above the heater elevation) shows significantly less change from initial conditions than the 
lower plane. This asymmetry possibly resulted from heterogeneities in the block. Drying started 
to appear as early as May 22, 1997, in the lower plane. 
Figure 6.1.2.1-3 shows the changes in the moisture content in the two vertical planes. As 
expected, the most obvious feature is the drying zone surrounding the heaters. Although drying 
is not clearly associated with the heaters until May 22, 1997 (about 83 days into heating), once 
formed, the drying zone is the dominant feature in either image plane all the way through the last 
data of cool-down (March 19, 1998). This large dry zone around the heater persists until the late 
heating phase in February 1998. Once formed, the heater dry zone is not smooth and planar. 
Instead, it is very irregular in shape, with many appendages. There is also a tendency for the dry 
zone to be relatively flat on top and bottom early in the test, but convex on top and concave on 
the bottom late in the test. 
6.1.2.1.3 Measurement Uncertainty: ERT 
Geophysical methods, including ERT, are intended to give qualitative estimates of drying and 
wetting. The ERT image represents integration of the saturation distribution over a relatively 
large area, and is therefore less accurate than neutron logging. There are many factors that affect 
the uncertainty of the ERT results: 
 
The measurements of electrical voltage and current in the field are accurate, relative to 
other factors. 
 
Measured temperatures within the image region are used for the ERT data reduction. 
Although the temperature can be measured very accurately at the RTD locations, 
interpolations are necessary to provide a two-dimensional temperature field suitable for 
the ERT. The interpolation will introduce uncertainty in the temperature field, 
especially with significant heterogeneity in the rock mass. 
 
The current ERT data reduction does not directly consider the cation exchange capacity 
of the rock. The cation exchange capacity is indirectly considered when the laboratory 
measured relationship among the electrical resistivity, water saturation, and temperature 
is used to check the Waxman-Thomas model of electrical resistivity and water 
saturation, which was developed for the case of shale sands. 

 
The laboratory resistivity data of welded tuff indicate that the Waxman-Thomas model 
tends to overpredict dryness for saturations less than 20 percent. 
 
The inversion algorithm used to reconstruct the tomographs smoothes the data. 
Therefore, the structures observed are smeared versions of the true target. 
 
The effect of the thermal fracturing on the electrical resistivity was not considered by the 
Waxman-Thomas model. 
 
The resistivity ratios were calculated using a two-dimensional algorithm; natural 
heterogeneities such as fractures tend to be three-dimensional. Changes in resistivity 
occurring along fractures may be distorted by use of the two-dimensional algorithm. 
 
Metallic sensors in the block may reduce sensitivity to resistivity changes occurring in 
the block. 
 
The Waxman-Thomas models do not account for changes in water resistivity caused by 
rock/water chemical interactions. If chemical reactions cause changes in the 
concentration or types of ions in the water, or change the porosity because of mineral 
precipitation or dissolution, the estimated saturation changes will be in error. 
6.1.2.2 Neutron Logging 
Neutron logging was used to measure the moisture content in the rock through the various phases 
of the LBT. The neutron probe contains a source of high-energy neutrons and a detector for slow 
(thermal) neutrons. Neutron counts were measured in each borehole at 10 cm intervals. The 
hydrogen in the water in the rocks slows down the neutrons, making them detectable. Thus, 
higher counts (or a positive difference in counts relative to background or preheating levels) 
indicate higher water content (or increased water content over background). Known moisture 
contents were used to calibrate the neutron tool in liner-grout and liner-RTD-grout assemblies 
(identical to those used in the boreholes). Water content is calculated from the neutron counts 
using the calibration results. Under ambient conditions, the sampling volume surrounding the 
probe has a diameter of approximately 12 cm (Lin et al. 2001 [DIRS 159069], Section 6.1.2.1.2); 
this volume diameter increases as moisture content decreases. 
Neutron logging was conducted in some of the vertical boreholes in the potential location of the 
block, before the boundary of the block was cut. This was to assess the initial moisture content 
in the outcrop. Then, after the cutting of the block boundary, the neutron logging was repeated 
to assess the changes in the moisture content resulting from the cutting. Cutting the block 
boundary using water had no significant effect on the moisture content of the block. Background 
moisture saturation levels were determined to be about 60 to 80 percent, for a laboratory-
determined porosity of about 11 percent. Before the heating was started, the baseline moisture 
content in every neutron borehole was established. Then, during the heating phase and the 
consequent cooling phase of the test, neutron logging was conducted about once per month. In 
all cases, neutron counts were obtained at every 10-cm spacing in each borehole. The neutron 
counts were converted to fraction volume water content by using calibration results. 

Neutron logging was conducted in the five vertical boreholes (TN1 to TN5, as shown in Figure 
6.1-2), six horizontal boreholes from the north face (NN1 to NN6 in Figure 6.1-3), and four 
horizontal boreholes from the west face (WN1 to WN4 in Figure 6.1-5) after the completion of 
the installation of sensors (preheating) in February 1997. The neutron boreholes were equipped 
with a Teflon liner, and the space between the liner and the borehole wall was sealed with 
cement grout. Moisture content was determined with both the Teflon liner and the cement grout 
in place. The preheating measurement established the baseline so that the effect of heating the 
block on its moisture content could be determined. The neutron tool was calibrated in a 3.81 cm 
diameter borehole, with the Teflon liner/grout assembly exactly the same as in the neutron 
boreholes of the LBT. The neutron tool was calibrated both with and without Teflon liner and 
cement grout conditions. It was determined that the Teflon liner/grout assembly had no major 
effect on the determined moisture content. This is not surprising because the neutron boreholes 
in the LBT are designed in such a way that the thickness of the annular cement grout is minimal, 
only about 0.3 cm (Lin et al. 2001 [DIRS 159069], p. 6-14). 
A complete set of the raw neutron counts, the location of measurements in each borehole, and the 
converted difference fraction volume water content are in the TDMS under the DTNs: 
LL980919304244.075 [DIRS 145099] and LL970803404244.040 [DIRS 113889]. 
6.1.2.2.1 Results: Neutron Logging 
The difference fraction volume water content in TN3 during the test is presented in this section 
in graphical form, so that the process of moisture movement can be analyzed. The difference 
fraction volume water was calculated by subtracting the baseline fraction volume water from that 
measured during the test. 
Figure 6.1.2.2-1 shows the preheating (baseline) fraction-volume-water content in TN3 as a 
function of depth from the borehole collar. This is an example of the baseline water content in 
the neutron borehole. Generally, the initial moisture content in the region near the collar is less 
than that in the borehole. The variation in the initial moisture content in each borehole is 
probably caused by heterogeneity in the rock mass. 
Figures 6.1.2.2-2 and 6.1.2.2-3 show the difference fraction volume water in borehole TN3, as a 
function of depth from the borehole collar. These are examples to illustrate the variation in the 
moisture content in the block as measured by neutron logging. Data for the other boreholes can 
be found in DTNs: LL971204304244.047 [DIRS 113894] and LL970803404244.040 
[DIRS 113889]. In these figures, the positive fraction volume water means gaining moisture 
content; the negative fraction volume water means losing moisture content. Generally, the 
vertical boreholes have a well-defined dryout zone developed after 48 days of heating at the 
heater plane, which was at about 2.74 m from the top of the block. The dryout zone widened 
with time, and the extent of the drying also increased with time, because of the continuous 
heating. The widths of the maximum dryout zones, as measured at the half of the depth of the 
dryness in the five vertical boreholes, ranged from 1.49 to 1.69 m. It is fair to say that the width 
of the dryout zone is quite uniform. There was not much change in the extent of the dryness 
after day 361 of heating. There were some variations in the shape of the tip of the dryout zone 
among those five vertical neutron boreholes. The dryness in those five vertical boreholes ranged 
from -0.07 to -0.09 fraction volume. Those variations among the five vertical boreholes 

illustrate the effect of heterogeneity in the block on the movement of moisture. Those figures do 
not show significant rewetting during the cool-down phase. 
The variation of the moisture content among the north-face neutron boreholes and the west-face 
neutron boreholes is similar, and is consistent with that shown in TN3. Generally, the variation 
of the moisture content was uniform across the block. The variation of the moisture content in 
the horizontal neutron boreholes depends on the vertical location of the borehole. 
The data also showed that the moisture movement in the block was almost one-dimensional. A 
well-defined dryout zone was developed at the heater plane. The neutron results did not show 
significant rewetting during the cool-down phase. Fractures have important roles in the localized 
movement of the moisture (Lin et al. 2001 [DIRS 159069], pp. 6-14 and 6-16). 
6.1.2.2.2 Measurement Uncertainty: Neutron Logging 
Neutron logging provides an accurate measurement of water content but the volume or cross-
sectional area covered by the neutron measurement extends only about 15 cm into the rock. The 
variation of the moisture content in the cement grout between the Teflon liner and the borehole 
wall may have some effect on the neutron counts, but the effect is small in the LBT because the 
thickness of the grout column is only about 0.3 cm. 
6.1.2.3 Passive MonitoringGas Pressure and Relative Humidity 
Gas pressure and relative humidity were measured in the four hydrology boreholes: TH1, NH1, 
WH1, and WH2. Packers were installed in those boreholes to pack off zones for the 
measurements. Each pack-off zone was about 0.46 m in length. One Humicap was installed in 
each pack-off zone, and a pressure line was installed to bring the gas pressure to a pressure 
transducer outside of the block. There were three pack-off zones in TH1: one each in NH1, 
WH1, and WH2. Detailed discussion of these measurements can be found in Section 9.2 of 
Large Block Test Final Report (Lin et al. 2001 [DIRS 159069]). The gas pressure and the 
relative humidity data can be found in the TDMS under the DTN: LL980918904244.074 [DIRS 
135872]. This DTN is unqualified and should only be used for corroborative purposes. 
6.1.2.3.1 Results: Gas Pressure and Relative Humidity 
Since the pressure transducer outputs were all very noisy, only the relative humidity and 
temperature measured by the Humicap sensors will be presented. The Humicap sensors in the 
first two packed-off zones of the vertical borehole (TH1) also performed unreliably during the 
LBT. The discussion below, therefore, focuses on the third zone of the vertical borehole and the 
horizontal boreholes. The Humicap in WH1 and WH2 are the only two sensors that performed 
for the entire test period. Figures 6.1.2.3-1 and 6.1.2.3-2 show the temperature and relative 
humidity respectively as measured in WH2 (borehole WH2 is at about 0.5 m above the heater 
plane). These figures are used as examples of the humidity sensor data. Other humidity sensors 
functioned similarly. 
The WH2 temperature (Figure 6.1.2.3-1) results agree well with the temperatures measured by 
the RTDs. The initial relative humidity was about 90 percent and remained high until slightly 
past 125 days (Figure 6.1.2.3-2). The relative humidity values fell to about 25 percent by about 

230 days. This decrease is consistent with the moisture content measured by neutron logging. 
Neutron logging in TN3 (Figure 6.1.2.2-3) shows that more than 3 percent fraction volume water 
was lost between 130 days and 334 days of heating. This amount of moisture loss was almost 
half of the total moisture loss at that location in that borehole. The small number of humidity 
sensors deployed in the LBT limited the conclusive information about the TH process. However, 
the temperature and relative humidity records from borehole WH2 clearly show that a dry zone 
extended 0.5 m or more above the heater plane after 135 days. Higher in the block, at 1.5 m 
above the heater plane (borehole WH-1), boiling conditions were never reached, and relative 
humidity remained high throughout the LBT. Data also show that rewetting of dry zone was 
very slow following heater turn-off. 
6.1.2.3.2 Measurement Uncertainty: Relative Humidity 
The humidity measurement is accurate to within 2 to 3 percent and the RTD temperature 
measured by the humidity sensor is accurate to within 0.3C (CRWMS M&O 1997 [DIRS 
101540], Section 5.1). Another source of uncertainty in the measurement can result from the 
conditions in the borehole, such as the sealing of the packer. In a highly fractured rock mass, 
sealing of a borehole by packers may be incomplete. Quantitative uncertainty cannot be 
established for relative humidity measurements obtained where there is packer leakage. 
6.1.2.4 Laboratory ParametersMatrix Permeability, Density, Porosity, Micro-Pore 
Structure, Fracture Flow and Matrix Imbibition Visualization 
Small blocks of the rock at the LBT site were collected for laboratory testing of hydrologic 
properties and processes. Those hydrologic properties include density, porosity, water 
permeability, and moisture-retention curves. The hydrologic process investigated was fracture 
flow and matrix imbibition. Section 3.5.1.3 of Large Block Test Final Report (Lin et al. 2001 
[DIRS 159069]) carries the description of the laboratory tests in greater details. Here, the 
methods of the laboratory tests are briefly discussed and the results summarized. 
Matrix Permeability 
The water permeability of the Topopah Spring Tuff samples obtained from Fran Ridge was 
measured in the laboratory as a function of temperature. The technique of measuring the 
permeability was the steady-state flow-through method. Core samples of about 2.54 cm in 
diameter and 5.1 cm in length were prepared from small block SPC00504573 collected at Fran 
Ridge during the excavation of the large block, with core identification numbers SPC00504573.4 
and SPC00504573.5. The test sample was first saturated with water. Then the sample was 
encapsulated in a membrane, which separated the sample from the confining pressure fluid. The 
sample assembly was placed within a pressure vessel with independently controlled confining 
pressure, pore-water pressure, and temperature. The sample was brought to an equilibrium of 
certain temperature, confining pressure, and pore pressure. 
A differential pressure across the length of the sample was created to cause a flow. The steady-
state flow rate was measured. Permeability was calculated using Darcys equation, assuming the 
pore pressure gradient is linear. The measurement equipment used in the permeability 
measurement included a confining pressure transducer, pore pressure transducer, differential 

pressure transducer, and thermocouple to measure temperature. Flow rate was determined by 
letting water flow into a container on a balance. The weight of the balance corresponded to the 
volume of water that has flowed through the sample and is recorded by a computer, along with 
all the other data such as time, temperature, differential pressure, pore pressures, and confining 
pressure. Because the flow rate was low, it was necessary to consider the rate of evaporation 
from the collection bottle. This was found to be linear with time over a period of about one 
week. The water lost due to evaporation was 4.13 mg/hour. This lost water was added to the 
balance reading for a specific period of time when calculating permeability. The matrix 
permeability data can be found in the TDMS under the DTN: LL960905204244.022 [DIRS 
158244]. 
Density, Porosity and Micro-Pore Structure 
Section 3.5.1.3.3 of Large Block Test Final Report (Lin et al. 2001 [DIRS 159069]) presents the 
porosity and the micro-pore structure of the LBT samples. The porosity was determined by 
calculating the difference between the dry density and the water-saturated wet density, divided 
by the water density (the Gravimetric method). The micro-pore size distribution was determined 
by mercury-injection porosimetry, another conventional method in the study of rock pore 
structure. The density and porosity data from the dry-and-saturation method can be found in the 
TDMS under the DTN: LL950812704242.017 [DIRS 158237]. Note that these data are 
unqualified and should only be used for corroborative purposes. 
Fracture Flow and Matrix Imbibition Visualization 
Section 3.5.1.3.4 of Large Block Test Final Report (Lin et al. 2001 [DIRS 159069]) presents the 
laboratory experiments using X-ray radiography to visualize fracture flow and matrix imbibition. 
The samples used in those visualizations were machined from small blocks obtained at the LBT 
site. A vertical tensile fracture was induced in the middle of the sample block of 2.5 cm 
thickness, oriented so that the plane of the fracture was parallel to the direction of X-ray 
transmission. At the top and bottom of the sample were chambers for ponding and collection of 
water. X-ray radiographs were taken periodically to image water movement into the fracture and 
rock matrix. A total of seven experiments were conducted. The experimental conditions 
included isothermal with and without shim, and at thermal gradients with shim. The role of the 
shim is to increase the aperture of the induced fracture. The X-ray radiograph data can be found 
in the TDMS under the DTN: LL981208404244.092 [DIRS 158263]. Note that this DTN is 
unqualified and should only be used for corroborative purposes. 
6.1.2.4.1 Results: Matrix Permeability, Density, Porosity, Micro-Pore Structure, 
Fracture Flow and Matrix Imbibition Visualization 
Matrix Permeability 
The water/matrix permeability data of intact core sample SPC00504573.4 are summarized in 
Table 6.1.2.4-1. The permeability of the intact Topopah Spring Tuff sample was less than 
2
10
-18 m. This permeability value is consistent with that measured in cores from Yucca 
Mountain (Lin and Daily 1984 [DIRS 101393]). It is also shown in Table 6.1.2.4-1 that intact 

sample permeability was not a strong function of temperature. This finding is also consistent 
with the results reported by Lin and Daily (1984 [DIRS 101393]). 
Density, Porosity and Micro-Pore Structure 
Table 6.1.2.4-2 shows the porosity of the LBT samples. The porosity ranged from 0.08 to 0.14, 
with a mean of 0.104 for the 36 samples. The porosity of the 33 samples determined from the 
mercury injection porosimetry ranged from 0.08 to 0.20 with a mean of 0.115, which agreed well 
with that determined by the dry-and-saturation method. 
Fracture Flow and Matrix Imbibition Visualization 
At room temperature, imbibition occurred chiefly through the matrix for the unshimmed fracture, 
with a roughly V-shaped wetting front. During the shimmed fracture experiment, water flowed 
along the fracture length first, then imbibed horizontally into the matrix. 
Under a thermal gradient, water flowed down the fracture quickly. There was significant lateral 
imbibition into the matrix from the fracture. Penetration of the boiling zone by the water 
depends on the water head. 
Figure 6.1.2.4-1 shows two images to illustrate the effect of water head on the fracture flow and 
matrix imbibition. In those two cases, the lower portion of the sample was the boiling zone. The 
convention used for the difference images is that darker colors or shades indicate relatively high 
X-ray attenuation and the presence of water, while the lighter areas correspond to lower 
attenuation and relatively dry areas. For a small water head of about 0.26 m, the water wetted 
almost the entire fracture first, followed by imbibition into the matrix, as shown in Figure 
6.1.2.4-1 (left image). Within 7.2 hours of ponding, the water penetrated about 3 cm into the 
boiling zone. Figure 6.1.2.4-1 (right image) shows that when the water head was increased to 
0.46 m, the water flowed through the entire length of the fracture within minutes and continued 
to flow through the boiling region. Not much imbibition into the matrix was observed in this 
case. The difference in water head was enough to force water through the boiling zone without 
significant imbibition. 
6.1.2.4.2 Measurement Uncertainty: Matrix Permeability; Density, Porosity, Fracture 
Flow and Matrix Imbibition Visualization 
Matrix Permeability 
The factors contributing to permeability uncertainty include the measurement accuracy of flow 
rate, differential pressure, and temperature. The inaccuracy in these measurements is small. The 
propagated error in the permeability through Darcys equation is also small. 
Density and Porosity 
The uncertainty of determining the density and porosity of a sample includes the uncertainty in 
the sample weight and volume. 
Fracture Flow and Matrix Imbibition Visualization 

The fracture flow and matrix imbibition experiments were qualitative observations. The main 
source of uncertainty is the similar X-ray attenuation caused by either increased water content or 
the formation of potassium iodide crystals. 
6.1.3 LBT Mechanical Measurements 
6.1.3.1 Multipoint Borehole Extensometers (MPBX) Displacements 
The three-dimensional view of the six MPBX boreholes in the block is shown in Figure 
6.1.3.1-1. For the location of those boreholes in the top, north, and west sides of the block, see 
Figures 6.1-2, 6.1-3, and 6.1-5, respectively. Section 7.1.1 of Large Block Test Final Report 
(Lin et al. 2001 [DIRS 159069]) presents the MPBX measurements in detail. Each extensometer 
consists of three or four borehole anchors connected to linear variable displacement transducers 
(LVDTs) at the collar by Invar rods. The anchors are numbered such that anchor 1 is nearest and 
anchor 4 is farthest from the collar. The anchors are spring-loaded to the borehole wall. Each 
anchor is connected to an LVDT at the collar by one invar rod. Any movement of the rock at an 
anchor transferred to the LVDT at the collar. Therefore, the extensometers measure linear 
displacement relative to the surface collar. In the data reduction, the thermal expansion of the 
invar rod was corrected from the raw displacement data by using the manufacturers invar rod 
thermal-expansion coefficient and the measured temperatures in TT1 and TT2. 
Preheating MPBX measurements were conducted for several days before the heaters were 
energized on February 28, 1997. The LVDTs were zeroed before the heating was started. All of 
the extensometers performed well during the first few weeks, but problems developed over time, 
beginning with NM-2, which is located near the heater plane. NM2 failed after about 40 days of 
heating. About 100 days into the heating phase, two more MPBXs (TM1 and NM1) failed. 
Before the heating phase ended, at about 375 days, TM1 and NM1 were repaired. Three out of 
the six MPBX provided complete sets of displacement data for the entire duration of the test. 
A detailed discussion of the LBT mechanical measurements is provided in Section 7.1 of Large 
Block Test Final Report (Lin et al. 2001 [DIRS 159069]). The Input DTNs for mechanical 
measurements are provided in Table 4-1. The Input DTN for these MPBX displacements is 
LL980919404244.076 [DIRS 148630]. 
6.1.3.1.1 Results: MPBX Displacements 
Figure 6.1.3.1-2 shows a typical example of the displacement data as a function of time. This is 
the displacement measured at the #4 anchor of WM2. Also shown in the figure is the 
temperature measured at TT2-22, which was about the same distance from the heater plane as 
WM2. Positive displacement means expansion; negative displacement means contraction. The 
measured displacement in the block tracked the temperature well, indicating that the block 
expanded as a result of heating. 
The horizontal displacements near the base of the block were small, essentially the same in the 
two horizontal directions, and were recovered during cool-down. The horizontal displacements 
near the top of the block were large, isotropic, and were only partially recovered. The vertical 
displacement was fairly small but only partially recovered during cool-down. 

6.1.3.1.2 Measurement Uncertainty: MPBX Displacement 
There are several potential sources for measurement uncertainty in the displacement 
measurements presented in this section. These uncertainties, quantifiable and nonquantifiable, 
are listed below: 
Quantifiable 
 
The accuracy of the instrumentation. 
 
The conversion of the electrical output to engineering units. The uncertainty from these 
equations, and the computational (round-off) error inherent in the data conversion 
software, are negligible. 
 
The physical location of the gages in the test region. The location uncertainty is 
particularly important in regions of high temperature gradient, where hydrological and 
thermal expansion behavior are thought to be strong functions for certain temperature 
ranges. 
 
The uncertainty related to the choice of method for computing thermal expansion of 
Invar rods based on measured temperatures along MPBXs. Although uncertainty is 
difficult to estimate, the magnitude of any discretization error is likely not large enough 
to affect the general trends in thermal-mechanical deformation of the rock. 
Nonquantifiable 
 
Electrical interference, such as spurious signals from power surges, which can cause 
low-magnitude noise, unexplained meandering in the data, or high-magnitude spikes. 
 
Unidentified sensor or MPBX assembly stability issues, which have caused a few 
LVDTs or vibrating wire gages to either produce bad data for an extended period of 
time before returning good data, or to have an unexplained shift in magnitude while 
maintaining expected rates of behavior on both sides of the shift. 
 
Degradation or failure of the instrumentation. 
Nonquantifiable uncertainties are usually addressed by removing questionable data from the data 
set prior to its use in analysis and modeling activities. 
6.1.3.2 Fracture Monitoring 
Deformations of several major fractures that intersect the surface of the LBT block were 
monitored using three-component fracture monitors. The purpose of these sensors was to 
monitor the movement of fractures to gain information about the magnitude and direction of 
fracture deformation during the test, especially as it relates to TH behavior. 
Linear variable displacement transducers (LVDTs) were used to measure the displacements in 
the three-component surface fracture monitor. The sensors were mounted in T-shaped slots cut 

into the block, visible in Figure 6.1-1. The slots were cut so that one LVDT would measure 
aperture change or deformation across the fracture in the plane of the face, while the other two 
LVDTs would measure sliding in orthogonal directions, parallel and perpendicular to the face. 
The fractures chosen were oriented perpendicular to the face as much as possible; thus, the 
information can be used to supply estimates of fracture deformation parameters, such as dilation 
with sliding. See Section 7.1.3 of Large Block Test Final Report (Lin et al. 2001 [DIRS 
159069]) for detailed discussion of fracture monitoring. The Input DTN for fracture monitoring 
is LL980919404244.076 [DIRS 148630]. 
6.1.3.2.1 Results: Fracture Monitoring 
The fracture monitoring (FM) data show that the vertical and horizontal fractures responded 
somewhat differently. The major horizontal fracture near the top opened coincidentally with the 
TH event at day 105. Both vertical and horizontal fractures showed closing during the thermal 
recovery from the TH events, that is, during periods of apparent condensate refluxing. Initial 
response for several of the FMs was associated with temperature at the heater plane. FM data 
indicate that the top of the block moved to the east. Most of the FM deformation was not 
recovered. The FM data are somewhat inconsistent with the MPBX data, as FMs indicate more 
deformation in lower portions of the block and less deformation in the upper portions of the 
block. The FM and MPBX results are presented in DTN: LL980919404244.076 [DIRS 148630]. 
6.1.3.2.2 Measurement Uncertainty: Fracture Monitoring 
Factors contributing to uncertainty in fracture monitoring include the rigidity of the mounting 
brackets, the limited number of monitoring points, the effects of the environmental conditions on 
the fracture monitor, the heterogeneity in the rock, and the apparent movement on the block 
surface. 
6.1.4 LBT Miscellaneous Measurements and Observations 
Fracture mapping and qualitative observations were included in the LBT. Observations from 
boreholes included assessments of fracture flows and microbial survivability and migration. 
Fracture mapping and the activities in the observation boreholes, as well as microbial 
survivability and migration, are summarized here. A detailed discussion of the LBT 
miscellaneous measurements is provided in Large Block Test Final Report (Lin et al. 2001 
[DIRS 159069]). 
6.1.4.1 Fracture Mapping 
Fracture mapping served to characterize the test block, help interpret test results, and compare 
with the fracture characteristics of the Exploratory Studies Facility (ESF). Section 4 of Large 
Block Test Final Report (Lin et al. 2001 [DIRS 159069]) presents the fractures mapped in the 
block. Fractures were carefully mapped on the block surface (four sides and top). Information 
on the fractures was also collected from video logs of boreholes. On the block surface, fractures 
were mapped using a 30-by-30 cm grid system on all four vertical sides and the top of the block. 
The fracture locations were digitized, and fracture segment nodes were assigned x-y-z values. 
These discrete data points were then input into a three-dimensional modeling code (EarthVision 
Version 5.0, STN 10393-5.0-00). From the borehole video logs, the depths at which the fracture 

enters and exits the borehole were recorded, as well as the strike, dip, dip direction, aperture, and 
magnitude of the features. Appendix C of Large Block Test Final Report (Lin et al. 2001 [DIRS 
159069]) includes information from all borehole video logs. EarthVision generated the trace of 
the fractures on the block surface and created fracture planes in the block. The fracture 
information can be found in the TDMS under the following DTNs: LL960400404244.012 
[DIRS 158271], LL960400504244.013 [DIRS 158274], LL960400604244.014 [DIRS 158275], 
and LL960400704244.015 [DIRS 158276]. 
6.1.4.1.1 Results: Fracture Mapping 
Major fractures were identified based on size, extent, continuity, and other considerations. The 
major fractures were then grouped into six systems according to their strike and dip. Figure 
6.1.4.1-1 shows three-dimensional views of all of the major fractures in the block. The fractures 
in the LBT were dominated by high-angle fractures. This is similar to the fractures in the ESF of 
Yucca Mountain. 
6.1.4.1.2 Measurement Uncertainty: Fracture Mapping 
The fractures were mapped by hand with tape measures and by viewing video logs, which have a 
measuring tape in the image. The accuracy of the measured location and extent of the fractures 
are a few millimeters. The major uncertainty is in the continuity of the fractures within the 
block. EarthVision uses interpolation to extend a fracture between the block surface and the 
boreholes, but in reality, a fracture may be discontinued or have abrupt changes in its strike 
and dip. 
6.1.4.2 Video Observation of Boreholes 
Four observation boreholes, NO1, NO2, EO3, and WO5, were installed near the bottom of the 
block. See Figures 6.1-3, 6.1-4, and 6.1-5 respectively for the location of these boreholes. 
6.1.4.2.1 Results: Video Observation of Boreholes 
Section 9.1 of Large Block Test Final Report (Lin et al. 2001 [DIRS 159069]) describes the 
observations performed in these boreholes. Observation boreholes were equipped with a Pyrex 
tube. The Pyrex tube was put in a half section of PVC pipe, cushioned by one piece of white 
cloth. The Pyrex tube was to allow access to a video camera for viewing fracture flows in a 
borehole. The ink marks on the Pyrex tube and the white cloth under the tube were to provide 
markers of fracture flow. Observations were performed periodically. It was obvious very early 
that the moisture in the tube prohibited any meaningful direct observation by a video camera. 
Most of the observations were performed by examining the ink marks on the tube and the ink 
stains on the white cloth. Many discrete markers (ink stains) were observed in the white cloth, 
but it was also obvious that condensation on the tube dissolved away a significant portion of the 
ink marks. Therefore, the video observation results are considered to be of little value. 
6.1.4.2.2 Measurement Uncertainty: Video Observation of Boreholes 
These observations have qualitative uncertainties, which are inherent to visual observations of 
geologic features. 

6.1.4.3 Microbial Observation 
Section 9.3 of Large Block Test Final Report (Lin et al. 2001 [DIRS 159069]) provides a 
detailed summary of the findings concerning microbial survivability and migration. Microbes 
were collected from the rock at the LBT site and cultured to be double-drug resistant. The 
labeled microbes were placed in the heater boreholes and the two vertical boreholes identified as 
LBL-1 and LBL-2 in Figure 6.1-2. The purpose was to test the survivability of the microbes and 
their migration in the heated, partially saturated rock environment. The observation performed 
was to periodically sample the moisture on the Pyrex tube and the white cloth cushion in the 
observation boreholes mentioned above. The data on the microbial types, abundance, and 
growth rates can be found in the TDMS under the DTN: LL981202305912.004 [DIRS 158270]. 
Note that this data is unqualified and should only be used for corroborative purposes. 
6.1.4.3.1 Results: Microbial Observation 
The microbes were found in the observation boreholes, which were about 1.5 m below the heater 
boreholes. This observation indicates that the microbes survived the heating and traveled with 
drainage water to the observation boreholes. 
6.1.4.3.2 Measurement Uncertainty: Microbial Observation 
The microbial observation was qualitative and scoping. Uncertainty assessment for the 
qualitative activity is not meaningful. 

INTENTIONALLY LEFT BLANK 

Source: Lin et al. 2001 [DIRS 159069]. 
Figure 6.1-1. LBT Block of Topopah Spring Tuff at Fran Ridge 

G -
x 
y 
Grouted 
DTN: LL981110704244.085 [DIRS 169259] (unqualified). 
Figure 6.1-2. LBT Vertical Boreholes Drilled from the Top of the Block 

x 
-z 
DTN: LL981110704244.085 [DIRS 169259] (unqualified). 
Figure 6.1-3. LBT Sensor Boreholes Drilled from the North Side of the Block 

y 
-z 
DTN: LL981110704244.085 [DIRS 169259] (unqualified). 
Figure 6.1-4. LBT Boreholes Drilled from the East Side of the Block 

y 
WR# -
-z 
West side REKA borehole 
DTN: LL981110704244.085 [DIRS 169259] (unqualified). 
Figure 6.1-5. LBT Sensor Boreholes Drilled from the West Side of the Block 

TDR-MGR-HS-000002 REV 00 F6.1-6 September 2004 
0100200300400500600050100150200250300350400450500550600elapsed Time, dayPower, WWATT-1 
DTN: LL980918904244.074 [DIRS 135872] (unqualified). 
Figure 6.1.1.1-1. Power History of the LBT Heater EH1 

0 
20 
40 
60 
80 
(C) 
100 
120 
140 
160 
TemperatureTT1-14 
0 100 200 300 400 500 600 
Da ys after Sta rt of Heating (2/28/97 - 9/30/98) 
DTNs: LL980918904244.074 [DIRS 135872] (unqualified), SEP Tables S98461_033, S98461_034, and 
S98461_035. 
Figure 6.1.1.2-1. Temperature History at LBT TT1-14 

0 
20 
40 
60 
80 
100 
120 
140 
160 
(C)TemperatureTT2-14 
0 100 200 300 400 500 600 
Days after Start of Heating (2/28/97 - 9/30/98) 
DTNs: LL980918904244.074 [DIRS 135872] (unqualified), SEP Tables S98461_033, S98461_034, and 
S98461_035. 
Figure 6.1.1.2-2. Temperature History at LBT TT2-14 

Source: Lin et al. 2001 [DIRS 159069]. 
Figure 6.1.2.1-1. LBT Layout of ERT Electrodes 

DTN: LL980913304244.072 [DIRS 145385]. 
Figure 6.1.2.1-2. Distribution of Moisture Content in Two Horizontal Planes from LBT ERT 

DTN: LL980913304244.072 [DIRS 145385]. 
Figure 6.1.2.1-3. Distribution of Moisture Content in Two Vertical Planes in LBT

0.16 
Fraction Volume Water Content 
0.14 
0.12 
0.1 
0.08 
0.06 
0.04 
0.02 
0 
0123456 
2/ 25/ 97-1 
2/ 25/ 97-2 
Depth from Colla r, m 
DTN: LL970803404244.040 [DIRS 113889]. 
Figure 6.1.2.2-1. Initial Fraction Volume Water Content Measured in LBT Vertical Borehole TN3 Using 
Neutron Logging (Preheating/Baseline) 

Difference Fraction Volume Water Content 
0.01 
0 
-0.01 
-0.02 
-0.03 
-0.04 
-0.05 
-0.06 
-0.07 
-0.08 
11 days 
25 days 
48 days 
60 days 
74 days 
103 days 
88 days 
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 
Depth from Collar, mDTN: LL970803404244.040 [DIRS 113889]. 
Figure 6.1.2.2-2. Difference Fraction Volume Water Content Measured in LBT Borehole TN3 Using 
Neutron Logging (March 11 to June 11, 1997) 

0.01
Difference Fraction Volume Water Content 
0 
-0.01
-0.02
-0.03
-0.04
-0.05
-0.06
-0.07
-0.08
-0.09
130 d a ys 
334 d a ys 
361 d a ys 
411 d a ys 
437 d a ys 
473 d a ys 
501 d a ys 
538 d a ys 
564 d a ys 
00.511.5 2 2.533.544.555.56
Depth from Colla r, m 
DTN: LL970803404244.040 [DIRS 113889]. 
Figure 6.1.2.2-3. Difference Fraction Volume Water Content Measured in LBT Borehole TN3 Using 
Neutron Logging (July 8, 1997, to September 15, 1998) 

DTN: LL980918904244.074 [DIRS 135872] (unqualified). 
Figure 6.1.2.3-1. Temperature Measured in LBT Borehole WH-2 as a Function of Time 

DTN: LL980918904244.074 [DIRS 135872] (unqualified). 
Figure 6.1.2.3-2. Relative Humidity Measured by the Humicap in LBT Borehole WH-2 as a Function of 
Time 

Source: Lin et al. 2001 [DIRS 159069]. 
Figure 6.1.2.4-1. Images of Imbibition Under Thermal Gradient: (left) 0.26 m Water Head at 7.2 Hours 
and (right) 0.46 m Water Head at 0.67 Hours 

Source: Lin et al. 2001 [DIRS 159069]. 
Figure 6.1.3.1-1. MPBX Borehole Locations, Viewed from the South Face

WM2-4 TT2-22 
Temperature (C) 
0 
100 200 300 400 500
3
90
Displacement (mm) 
2.5 
75
2
60
1.5 
45
1
30
0.5 
15
0 
0 
0 100 200 300 400 500
Elapsed Time (Days)
DTNs: LL980919404244.076 [DIRS 148630]; LL980918904244.074 [DIRS 135872] (unqualified). 
Figure 6.1.3.1-2. East-West Displacement for WM-2 Anchor 4 and Temperature at 1.2-m Depth 

Source: Lin et al. 2001 [DIRS 159069]. 
Figure 6.1.4.1-1. Three-Dimensional Depiction of the Major Mapped Fractures Cutting the LBT Block 
TDR-MGR-HS-000002 REV 00 F6.1-20 September 2004 

Table 6.1-1. DTNs for the Large Block Test 
Input DTN [DIRS] 
Input DTN 
Description 
Input DTN 
Text 
Location Summary DTN 
Summary DTN 
Description 
LA0106FH831151.002a 
[DIRS 158230] 
Data Collection System Data 6.1 Unchanged DTN Unchanged DTN 
LA0106FH831151.003a 
[DIRS 158229] 
Data Collection System Data 6.1 Unchanged DTN Unchanged DTN 
LL981110704244.085b 
[DIRS 169259] 
Large Block Test Report, 
Chapter 4 
6.1 Unchanged DTN Unchanged DTN 
LL980918904244.074b Heater Power, Temperature, 6.1.1.1 LL020710523142.025b Heater Power, 
[DIRS 135872] Relative Humidity, and Gas 6.1.1.2 [DIRS 164182] Temperature, and 
Pressure 6.1.2.3 Displacement 
Data. 
LL980919404244.076 Rock Mass Displacements 6.1.3.1 
[DIRS 148630] 6.1.3.2 
LL980913304244.072 Electrical Resistance 6.1.2.1 Unchanged DTN Unchanged DTN 
[DIRS 145385] Tomograms 
LL981001604244.079 Electrical Resistivity 6.1.2.1 Unchanged DTN Unchanged DTN 
[DIRS 158261] 
LL980919304244.075 Neutron Logging 6.1.2.2 Unchanged DTN Unchanged DTN 
[DIRS 145099] 
LL971204304244.047 Neutron Logging 6.1.2.2 Unchanged DTN Unchanged DTN 
[DIRS 113894] 
LL970803404244.040 Data on Moisture Content in 6.1.2.2 Unchanged DTN Unchanged DTN 
[DIRS 113889] the LBT 
LL950812704242.017b 
[DIRS 158237] 
Porosity, Saturated and Dry 
Density 
6.1.2.4 Unchanged DTN Unchanged DTN 
LL960905204244.022 
[DIRS 158244] 
Laboratory Matrix 
Permeability 
6.1.2.4 Unchanged DTN Unchanged DTN 
LL981208404244.092b 
[DIRS 158263] 
X-ray Radiography 6.1.2.4 Unchanged DTN Unchanged DTN 
LL960400404244.012 
[DIRS 158271] 
Fracture Mapping 6.1.4.1 Unchanged DTN Unchanged DTN 
LL960400504244.013 
[DIRS 158274] 
Fracture Mapping 6.1.4.1 
LL960400604244.014 
[DIRS 158275] 
Fracture Mapping 6.1.4.1 
LL960400704244.015 
[DIRS 158276] 
Fracture Mapping 6.1.4.1 
LL981202305912.004b 
[DIRS 158270] 
Bacterial Transport 6.1.4.3 Unchanged DTN Unchanged DTN 
a 
DTNs: LA0106FH831151.002 [DIRS 158230] and LA0106FH831151.003 [DIRS 158229] provide access (Records 
Processing Center) to all thermal and mechanical data collected in the LBT Data Collection System 
(original/electrical and converted/engineering units). These unqualified DTNs also provide access (RPC) to 
pertinent measurement information such as scientific notebooks and calibration procedures. These DTNs should 
be used for corroborative purposes only. 
b 
These unqualified DTNs should be used for corroborative purposes only. 

Table 6.1-2. XYZ Coordinates of the Collar and Bottom of LBT Boreholes 
Borehole 
ID (Alt. ID) 
X-Collar 
(m) 
Y-Collar 
(m) 
Z-Collar 
(m) 
X-Bottom 
(m) 
Y-Bottom 
(m) 
Z-Bottom 
(m) Borehole Type 
eh1 (EH1) 3.05 0.30 -2.74 0.30 0.30 -2.74 Heater 
eh2 (EH2) 3.05 0.91 -2.74 0.30 0.91 -2.74 
eh3 (EH3) 3.05 1.52 -2.74 0.30 1.52 -2.74 
eh4 (EH4) 3.05 2.13 -2.74 0.30 2.13 -2.74 
eh5 (EH5) 3.05 2.74 -2.74 0.30 2.74 -2.74 
e7 (TT1) 1.22 1.83 0.00 1.22 1.83 -5.51 RTD 
e1 (TT2) 2.44 1.22 0.00 2.40 1.19 -5.38 
nt1 (NT1) 2.74 3.05 -2.44 2.74 0.30 -2.44 
nt2 (NT2) 0.91 3.05 -0.61 0.91 0.30 -0.61 
nt3 (NT3) 0.91 3.05 -3.20 0.91 0.30 -3.20 
nt4 (NT4) 0.30 3.05 -2.44 0.30 0.30 -2.44 
wt1 (WT1) 0.00 1.68 -0.76 2.74 1.68 -0.76 
wt2 (WT2) 0.00 1.68 -1.68 2.74 1.68 -1.68 
wt3 (WT3) 0.00 1.68 -3.05 2.74 1.68 -3.05 
tr1 (TR1) 1.27 1.32 0.00 1.27 1.32 -1.42 REKA 
wr1 (WR1) 0.00 0.63 -1.86 1.75 0.63 -1.86 
wr2 (WR2) 0.00 0.91 -3.32 1.75 0.91 -3.32 
te1 (ERT) 1.52 1.37 0.00 1.52 1.37 -3.96 ERT 
e5 (TN1) 1.22 0.61 0.00 1.18 0.57 -5.64 Neutron 
e3 (TN2) 1.83 0.61 0.00 1.83 0.62 -3.75 
e6 (TN3) 1.22 1.22 0.00 1.21 1.16 -5.64 
e2 (TN4) 2.44 1.83 0.00 2.41 1.82 -5.44 
e8 (TN5) 1.22 2.44 0.00 1.21 2.45 -5.21 
nn1 (NN1) 2.13 3.05 -0.91 2.13 0.30 -0.91 
nn2 (NN2) 2.13 3.05 -1.98 2.13 0.30 -1.98 
nn3 (NN3) 2.13 3.05 -3.81 2.13 0.30 -3.81 
nn4 (NN4) 0.91 3.05 -0.91 0.91 0.30 -0.91 
nn5 (NN5) 0.91 3.05 -1.98 0.91 0.30 -1.98 
nn6 (NN6) 0.91 3.05 -3.81 0.91 0.30 -3.81 
wn1 (WN1) 0.00 2.13 -0.76 2.74 2.13 -0.76 
wn2 (WN2) 0.00 2.13 -1.68 2.74 2.13 -1.68 
wn3 (WN3) 0.00 1.68 -3.96 2.74 1.68 -3.96 
wn4 (WN4) 0.00 0.91 -1.68 2.74 0.91 -1.68 
n1 (TH1) 1.83 1.83 0.00 1.81 1.76 -4.01 Hydrology 
nh1 (NH1) 0.00 3.05 -2.44 2.13 0.30 -2.44 
wh1 (WH1) 0.00 1.68 -1.22 2.74 1.68 -1.22 
wh2 (WH2) 0.00 1.68 -2.29 2.74 1.68 -2.29 
no1 (NO1) 2.13 3.05 -4.11 2.13 0.30 -4.11 Observation 
no2 (NO2) 0.91 3.05 -4.11 0.91 0.30 -4.11 
eo3 (EO3) 3.05 2.74 -3.96 0.30 2.74 -3.96 
wo5 (WO5) 0.00 0.91 -3.96 2.74 0.91 -3.96 
n2 (TM1) 1.83 1.22 0.00 1.82 1.21 -4.05 Mechanical 
n3 (TM2) 1.83 2.44 0.00 1.78 2.42 -4.09 
nm1 (NM1) 2.74 3.05 -3.81 2.74 0.30 -3.81 
nm2 (NM2) 0.91 3.05 -2.44 0.91 0.30 -2.44 
nm3 (NM3) 0.30 3.05 -0.91 0.30 0.30 -0.91 
wm1 (WM1) 0.00 2.13 -3.96 2.74 2.13 -3.96 

Table 6.1-2. XYZ Coordinates of the Collar and Bottom of LBT Boreholes (Continued) 
Borehole 
ID (Alt. ID) 
X-Collar 
(m) 
Y-Collar 
(m) 
Z-Collar 
(m) 
X-Bottom 
(m) 
Y-Bottom 
(m) 
Z-Bottom 
(m) Borehole Type 
wm2 (WM2) 0.00 0.91 -1.22 2.74 0.91 -1.22 Mechanical 
(continued)wm3 (WM3) 0.00 0.91 -3.05 2.74 0.91 -3.05 
n4 1.52 3.05 0.00 1.52 3.05 -6.4 Rock bolt boreholes 
n5 0 1.52 0 0 1.52 -6.4 
n6 1.52 0 0 1.52 0 -6.4 
n7 3.05 1.52 0 3.05 1.52 -6.4 
PTC#1 1.22 3.05 -2.29 1.22 0.00 -2.29 Postcooling 
PTC#2 1.22 3.05 -2.02 1.22 0.00 -1.48 
PTC#3 1.22 3.05 -2.56 1.22 0.00 -3.09 
PTC#4 1.22 3.05 -1.73 1.22 0.00 -0.62 
PTC#5 1.22 3.05 -2.84 1.22 0.00 -3.95 
PTC#6 1.22 3.05 -1.41 1.22 0.00 0.35 
PTC#7 1.22 3.05 -3.76 1.22 0.00 -6.70 
PTC#8 1.22 3.05 -1.01 1.22 0.00 1.55 
PTC#9 1.22 3.05 -2.29 2.53 0.00 -2.29 
PTC#10 0.00 1.83 -1.09 3.05 1.83 1.29 
PTC#11 0.00 1.83 -1.30 3.05 1.83 0.68 
PTC#12 0.00 1.83 -1.51 3.05 1.83 0.04 
PTC#13 0.00 1.83 -1.73 3.05 1.83 -0.62 
PTC#14 0.00 1.83 -1.91 3.05 1.83 -1.15 
PTC#15 0.00 1.83 -2.26 3.05 1.83 -2.21 
PTC#16 0.00 1.83 -2.55 3.05 1.83 -3.09 
PTC#17 0.00 1.83 -2.84 3.05 1.83 -3.95 
PTC#18 0.00 1.83 -3.35 3.05 1.83 -5.49 
PTC#19 0.00 1.83 -2.18 3.05 1.83 -1.97 
PTC#19a 0.00 1.83 -2.29 3.05 0.52 -2.29 
e10 (LBL1) 0.61 1.83 0.00 0.55 1.81 -4.00 Micro. 
e9 (LBL2) 0.61 1.22 0.00 0.61 1.22 -3.98 
Source: Lin et al. 2001 [DIRS 159069]. 
Table 6.1.2.4-1. LBT Permeability Measurements on Intact Core Sample SPC00504573.4 
Temperature Confining Pressure Differential Pressure Permeability 
(C) (Mpa) (Mpa) (D) 
23 5.06 1.92 0.12 
25 5.07 2.47 0.14 
53 5.06 2.42 0.11 
53 5.06 1.91 0.15 
91 5.06 2.17 0.14 
92 5.06 1.60 0.14 
154 5.06 1.61 0.09 
130 5.05 1.46 0.13 
130 5.05 2.04 0.11 
83 5.06 2.02 0.17 
26 5.06 2.59 0.67 
26 5.06 2.61 0.20 
DTN: LL960905204244.022 [DIRS 158244]. 

Table 6.1.2.4-2. Density and Porosity of LBT Samples Determined by Gravimetric Method 
Samplea Sample ID 
Depth 
(m) 
Dry wt 
(g) 
Wet wt 
(g) 
Dry density 
(g/cm3) 
Wet density 
(g/cm3) Porosity 
N1-6.3 0032079.3 1.92 1.5352 1.6111 2.23 2.35 0.110 
N1-6.3A 0032079.3A 1.92 1.7890 1.8680 2.26 2.36 0.0997 
N1-6.3B 0032079.3B 1.92 1.6358 1.7098 2.28 2.39 0.103 
N1-11.0 0032081.3 3.35 1.6352 1.7181 2.25 2.37 0.114 
N1-11.0A 0032081.3A 3.35 1.5920 1.6734 2.26 2.38 0.116 
N1-11.0B 0032081.3B 3.35 1.6762 1.7525 2.30 2.41 0.105 
N1-13.45 0032082.3 4.10 1.4982 1.5752 2.27 2.39 0.117 
N1-13.45A 0032082.3A 4.10 1.7118 1.7951 2.27 2.38 0.110 
N1-13.45B 0032082.3B 4.10 1.6954 1.7781 2.26 2.37 0.110 
N1-16.9 0032083.3 5.15 1.6499 1.7522 2.20 2.33 0.136 
N1-16.9A 0032083.3A 5.15 1.6094 1.6987 2.23 2.35 0.124 
N1-16.9B 0032083.3B 5.15 1.6885 1.7670 2.27 2.38 0.106 
N1-20.3 0032084.3 6.19 1.5438 1.6133 2.22 2.32 0.0998 
N1-20.3A 0032084.3A 6.19 1.5567 1.6244 2.26 2.36 0.0982 
N1-20.3B 0032084.3B 6.19 1.5109 1.5849 2.21 2.32 0.108 
N4-11.6 0032104.3 3.54 1.5429 1.6036 2.26 2.34 0.0887 
N4-11.6A 0032104.3A 3.54 1.6222 1.6864 2.24 2.33 0.0886 
N4-11.6B 0032104.3B 3.54 1.6375 1.6969 2.27 2.35 0.0823 
N5-4.9 0032107.3 1.49 1.6998 1.7687 2.25 2.34 0.0911 
N5-4.9A 0032107.3A 1.49 1.6501 1.7104 2.28 2.37 0.0834 
N5-4.9B 0032107.3B 1.49 1.8818 1.9569 2.31 2.40 0.0922 
N5-20.4 0032111.3 6.22 1.5230 1.5909 2.22 2.32 0.0992 
N5-20.4A 0032111.3A 6.22 1.4883 1.5593 2.21 2.32 0.106 
N5-20.4B 0032111.3B 6.22 1.4765 1.5463 2.22 2.32 0.105 
N6-4.75 0032112.3 1.43 1.7549 1.8228 2.25 2.33 0.0869 
N6-4.75A 0032112.3A 1.43 1.6761 1.7374 2.29 2.37 0.0837 
N6-4.75B 0032112.3B 1.43 1.7136 1.7755 2.27 2.35 0.0819 
N6-14.2 0032116.3 4.33 1.6590 1.7398 2.26 2.37 0.110 
N6-14.2A 0032116.3A 4.33 1.6869 1.7706 2.24 2.35 0.111 
N6-14.2B 0032116.3B 4.33 1.6285 1.7137 2.23 2.35 0.117 
N7-5.7 0032120.3 1.74 1.6161 1.7003 2.24 2.36 0.117 
N7-5.7A 0032120.3A 1.74 1.6320 1.7051 2.29 2.39 0.102 
N7-5.7B 0032120.3B 1.74 1.7091 1.7834 2.28 2.38 0.0991 
N7-11.0 0032123.3 3.35 1.5850 1.6705 2.25 2.37 0.121 
N7-11.0A 0032123.3A 3.35 1.6353 1.7171 2.26 2.38 0.113 
N7-11.0B 0032123.3B 3.35 1.6318 1.7112 2.27 2.38 0.110 
Meanb (36 samples) 2.250.03 2.360.02 0.1040.013 
DTN: LL950812704242.017 [DIRS 158237] (unqualified). 
a 
Sample name consists of borehole designation followed by depth in feet below the template used to locate 
vertical boreholes. 
b 
Statistical mean for 36 samples. Errors represent one standard deviation for all samples collectively. 

6.2 SINGLE HEATER TEST 
The Single Heater Test (SHT) was the first of several in situ thermal tests planned and conducted 
to investigate coupled processes in the local rock mass surrounding the repository. These 
coupled processes are thermally driven by heat released from an electrical heater that simulates 
heat from emplaced nuclear waste. The SHT is located in the same rock unit (Tptpmn) as the 
LBT, but the LBT block is from a surface outcrop while the SHT (and DST) are in situ or 
underground. More specifically, the SHT is located in Alcove 5 in the ESF as shown in Figure 
6.2-1. The heating phase of the SHT started in August 1996 and continued for nine months until 
May 1997. The cooling phase continued for seven months until January 1998, at which time 
postcooling characterization of the test block commenced. A detailed description of the SHT is 
presented in Single Heater Test Final Report (CRWMS M&O 1999 [DIRS 129261]). 
The test block was characterized under ambient conditions prior to heater activation. 
Characterization included testing in the laboratory for thermal, mechanical, and hydrological 
properties, mineralogic-petrologic characteristics, as well as field measurements of 
permeabilities and fracture characteristics (CRWMS M&O 1996 [DIRS 101428]). 
SHT Input DTNs are tabulated in Table 4-2. SHT Summary DTNs are tabulated in Table 6.2-1. 
A plan and cross section of the SHT are shown in Figure 6.2-2. The SHT block was 
approximately 12.9 m wide, 9.5 m deep, and 5.5 m high. Forty-one boreholes with total length 
of 230 m were drilled into the block. borehole 1 (shown in red in Figure 6.2-2) contained the 
single 5-m-long heater capable of generating nominal 4 kW of heat. The other boreholes were 
installed with various equipment systems and sensors to monitor the thermal, mechanical, 
hydrological, and chemical responses of the rock as it was heated and cooled. Detailed 
description of the SHT as-built borehole locations is provided in Table 6.2-2. Coordinates of the 
various SHT sensors are provided in Appendix G of Single Heater Test Final Report (CRWMS 
1999 [DIRS 129261]) and the respective Summary DTNs identified in Table 6.2-1. The origin 
of the SHT XYZ coordinate system is the center of the collar for the heater borehole. The X-axis 
is horizontal and positive to the right when facing the heater borehole, the Y-axis is also 
horizontal and follows the longitudinal direction of the heater borehole, and the Z-axis is vertical 
and positive in the upward direction. The borehole numbers in Figure 6.2-2 correspond to those 
in Table 6.2-2. Table 6.2-2 gives the sensor type or type of measurement for which any 
particular borehole is used. A total of 530 sensors were placed in the boreholes. Several 
boreholes were drilled for postcooling characterization. The coordinates of the additional 
boreholes in the SHT block are shown in Table 6.2-3. 
Most of the measurements made by the sensors were scanned and recorded by an automated 
Data Collection System (DCS). The central component of the DCS was a Geomation Model 
2380 Measurement and Control Unit (MCU) in a NEMA-12 enclosure with a capacity of 640 
channels. The DCS records the heater power and the readings of the thermocouples mounted on 
the heater itself every 15 minutes. The readings of the other sensors were recorded hourly. 
Certain measurements that were not recorded by the DCS included electrical resistivity 
tomography (ERT), neutron logging, ground penetrating radar (GPR), Goodman Jack (borehole 
jack), pneumatic permeability, and infrared (IR) imaging. 

The SHT DCS recorded thermal, hydrological (partial), and mechanical data, for the most part, 
on an hourly basis (heater power and temperature recorded every 15 minutes). The acquired data 
consists of both original (measured electronic values) and converted (engineering units). A 
package of data was submitted to the Records Processing Center (RPC) and a corresponding 
DTN (DTN: LA0002FH6001WP.001 [DIRS 158278]) was also obtained. This DCS DTN also 
identifies scientific notebooks that provide details of SHT measurements including calibration 
information. DCS DTNs are reduced and restructured and periodically submitted to the TDMS 
resulting in many of the Input DTNs introduced below and listed in Table 4-2. As discussed in 
Section 1 and the introduction to Section 6, these Input DTNs are further refined, reduced, and 
restructured before being resubmitted to the TDMS as Summary DTNs (see Table 6.2-1). 
6.2.1 SHT Thermal Measurements 
Thermal measurements include the heater power and the temperatures at various locations in the 
test block. A detailed description of the thermal measurements discussed below can be found in 
Section 7.2 of Single Heater Test Final Report (CRWMS M&O 1999 [DIRS 129261]). 
Input DTNs and associated Summary DTNs for SHT power and thermal measurements are listed 
in Tables 4-2 and 6.2-1, respectively. 
6.2.1.1 Heater Power 
The heater assembly for the SHT consisted of two single-ended 4,000-watt heating elements 
centered in a 5.4 cm (2.125 in.) diameter copper tube with a copper end cap at the bottom end. 
The two heating elements were contained in a nominally 2.5-cm (1-in.) diameter carbon-steel 
inner casing. The heating elements were made of nicrome and were each 5 m long, with a 180 
bend at the bottom end. The design of the SHT heater allowed for one of the heating elements to 
act as a secondary heating source in the event that the other failed, or if additional heat needed to 
be added to the rock. The heater included a control loop that allowed for automatic switching 
from the primary element to the secondary element if the heater power dropped below a 
prescribed set point. Throughout the test, the heating elements were operated one at a time. 
The heater power, voltage, and current were monitored using a Magtrol power monitor. The 
SHT heater power was nominally 4,000 watts for a period of nine months, followed by a cool-
down period with the heater off completely. The cool-down period lasted approximately seven 
months. 
The SHT power data may be found in Input DTN: SN0401F3511695.012 [DIRS 169262]. 
6.2.1.1.1 Results: Heater Power 
The heater power history for the SHT over time periods of two weeks is illustrated in Figure 
6.2.1.1-1. Power was applied to the heater starting on August 26, 1996, at 18:30:30 Universal 
Coordinated Time, time zero in Figure 6.2.1.1-1 showing the elapsed time from the activation of 
the heater. Between the time of activation and May 28, 1997, but omitting the anomalous data 
intervals and heater down times, the heater power output averaged approximately 3,800 watts. 

The data indicate that the power output of the heater under normal operation declined by 
approximately 130 watts (3 percent) over the nine months that it was in operation. The heater 
was deactivated 275 days after being activated. 
6.2.1.1.2 Measurement Uncertainty: Heater Power 
The uncertainty in SHT power is similar to that discussed for the LBT in Section 6.1.1.1.2. 
6.2.1.2 Temperatures 
The thermocouple probes used in the SHT consist of Type-K thermocouples enclosed within 
304 stainless steel, 0.64-cm-diameter (0.25 in.) sheaths. The thermocouples within the sheaths 
were insulated from each other with magnesium oxide. Thermocouple probes were installed in 
seven boreholes in the rock mass around the heater to monitor temperature changes away from 
the heater. Three additional thermocouple probes were installed on the top, side, and bottom of 
the heater canister to monitor heater surface temperatures. 
Five of the boreholes (boreholes 812) were drilled roughly parallel to the heater axis to a depth 
slightly exceeding the planned heater installation depth. Within these five boreholes, probes 
TMA-TC-1, TMA-TC-2, TMA-TC-3, TMA-TC-4, and TMA-TC-5 were located at nominal 
radial distances from the heater borehole of 0.4 m, 0.7 m, and 1.5 m, roughly corresponding to 
the numerically predicted temperature isotherms of 200C, 150C, and 100C, respectively 
(CRWMS M&O 1996 [DIRS 101375], pp. 3-2 and 3-5). Within each of these five boreholes, 
two thermocouple probes were installed. Two probes were required during test planning because 
the drift width was too narrow to allow installation of 8 m long thermocouple probes. Therefore, 
for each of these boreholes, two probes were used: one approximately 6 m long with ten Type-K 
thermocouple junctions spaced along its length (designated probe A for each borehole), and 
one approximately 2 m long with five Type-K thermocouple junctions spaced along its length 
(designated probe B for each borehole). The other two thermocouple probes (TMA-TC-6 and 
TMA-TC-7) were drilled perpendicular to the heater borehole from the Observation Drift and the 
Thermal-Mechanical Alcove Extension. 
Temperatures were also measured on each of the free surfaces of the SHT block, using individual 
Type-K thermocouple junctions. Twelve individual thermocouples were installed on each face 
of the SHT block. 
Temperatures were measured between the two layers of insulation on each of the three free 
surfaces of the SHT block, using individual thermistors. Five individual thermistors were 
installed between the layers of insulation on each face of the SHT block 
The complete set of temperature data is provided in the Summary DTN identified in Table 6.2-1. 
T The temperatures measured in the rock mass are organized into a series of EXCEL workbooks, 
one for each borehole, with temperatures sampled every fourteen days. Each of the workbooks 
contains two charts, with the data on an accompanying worksheet. The first chart shows the 
temperature history for thermocouples or RTDs. The second chart shows temperature profiles as 
a function of a spatial coordinate at various times during the SHT heating and cooling phases. 
The coordinates for borehole endpoints and corresponding sensors are also provided in the 
workbooks. 

The SHT temperature data may be found in Input DTNs: SN0401F3511695.012 [DIRS 169262] 
and SN0401F3511695.013 [DIRS 169263]. 
6.2.1.2.1 Results: Temperatures 
Because of the abundance of SHT temperature measurements, only representative discussion and 
graphics are provided below. All temperature data can be accessed in the Summary DTN 
(MO0208RESTRSHT.002) identified in Table 6.2-1. This Summary DTN is also supported by 
Input DTNs SNF35110695001.001 [DIRS 158315] and LL970805504244.043 [DIRS 158313]. 
A complete discussion of the SHT temperature data is provided in Single Heater Test Final 
Report (CRWMS M&O 1999 [DIRS 129261]). 
The following discussion uses borehole 15 and borehole 8 to illustrate how temperature results 
are displayed in the output workbooks for individual boreholes. borehole 15 is parallel to the 
x-direction and angles upward such that it extends above and beyond the heater as shown in 
Figure 6.2-2. Figures 6.2.1.2-1 and 6.2.1.2-2 present typical temperature history and temperature 
profile results for temperature sensors located in borehole 15. Figures 6.2.1.2-3 and 6.2.1.2-4 
present the temperature history and temperature profile for borehole 8, respectively. 
Interruptions to heater power slightly reduced the rock temperature. When the heater was turned 
off after 275 days, the temperatures of the sensors dropped rapidly. The temperatures recorded 
by sensors closest to the center of the heater, which recorded the warmest temperatures, dropped 
more rapidly than the sensors further from the center of the heater. By 523 days after heater 
activation (after 248 days of cooling), the temperature recorded by the sensors in borehole 8 had 
cooled to between 23C and 32C. 
6.2.1.2.2 Measurement Uncertainty: Temperatures 
The uncertainty in SHT temperature measurements involves both RTDs and thermocouples. In 
general in the SHT, RTDs measured temperatures in the neutron boreholes and thermocouples 
measured temperatures in most other boreholes. 
The RTD is accurate within 0.3C ((CRWMS M&O 1997 [DIRS 101540], Section 5.1). With 
consideration of other factors, such as uncertainty in the location of the RTDs, the accuracy of 
the RTD measured temperature in the SHT is estimated to be within 2C. The RTD bundles 
were grouted in the boreholes; consequently, some of the RTDs may not have had direct contact 
with the borehole wall. There may also have been some time delay between the temperature 
variations in the rock and that measured by the RTDs. It is believed that this time delay was 
small because the rock mass was heated slowly. The thermocouple is accurate within 2.2C 
(CRWMS M&O 1997 [DIRS 101540], Section 5.1). With consideration of other factors, such as 
uncertainty in the location, the overall accuracy of the measured temperatures in the SHT is 
estimated to be within 3.5C. 
6.2.1.3 Laboratory Thermal Conductivity 
Four thermal conductivity tests and nine thermal expansion tests were performed (CRWMS 
M&O 1996 [DIRS 101428]). The specimens tested represent Topopah Spring welded tuff 

specimens. Cores from boreholes drilled into the SHT test block were used to prepare specimens 
for both mechanical and thermal properties testing in the laboratory. 
The SHT Laboratory measured thermal conductivity may be found in Input DTN 
SNL22080196001.001 [DIRS 109722]. 
6.2.1.3.1 Results: Laboratory Thermal Conductivity 
Thermal conductivity data are tabulated in Table 6.2.1.3-1. The mean thermal conductivity and 
standard deviation about the mean are given at each temperature. It appears that temperature 
dependence on thermal conductivity is small. The sharp increase in thermal conductivity at 70C 
reflects a change in instrumentation at that temperature. A low temperature (LT) device was 
used for testing at 70C and below; a thermocouple apparatus (TCA) was used for 70C and 
above. 
6.2.1.3.2 Measurement Uncertainty: Laboratory Thermal Conductivity 
Uncertainty in the laboratory measurement of thermal conductivity includes heterogeneity in the 
rock sample, temperature and insulator control, moisture determination, temperature effects, 
changes in instrumentation, and machine calibration. Most of these uncertainties are 
unquantifiable. In the case of machine calibration, if the error reached 4 percent, then it was 
recalibrated (CRWMS M&O 1996 [DIRS 101428], p. 3-6). 
6.2.2 SHT Hydrological Measurements 
To assess the thermal-hydrologic processes in the SHT, the spatial distribution and the temporal 
variations of the moisture content in the rock mass were monitored. Electrical resistance 
tomography (ERT), ground penetrating radar (GPR), and neutron logging were used to monitor 
the moisture content. Air permeability was measured periodically to assess the changes in the 
fracture permeability during the test. Core samples collected from the SHT region were tested in 
the laboratory for some hydrological properties, such as porosity, density, and moisture retention 
curves. These will be presented in the following corresponding sections. 
Detailed discussion of SHT hydrological measurements is documented in Sections 6.3 and 8 of 
Single Heater Test Final Report (CRWMS M&O 1999 [DIRS 129261]). SHT hydrologic Input 
DTNs and Summary DTNs are presented in Tables 4-2 and 6.2-1, respectively. 
6.2.2.1 Electrical Resistance Tomography (ERT) 
This section describes ERT surveys made during the SHT heating and cooling phases to map the 
changes in moisture content caused by heating. Of particular interest are the formation and 
movement of condensate within the fractured rock mass. Figure 6.2-2 shows the relative 
position of the ERT (hydrological) boreholes in the SHT. Four inclined boreholes (24-27), 
forming a plane perpendicular to the heater axis, were used to position electrodes around the 
region of interest; this plane intersects the heater near its midpoint. Twenty-eight electrodes, 
equally spaced within the four boreholes, were used to conduct ERT surveys around the heater. 
The electrode spacing was about 30 cm with the electrodes grouted in the boreholes. 
Section 8.5 of Single Heater Test Final Report (CRWMS M&O 1999 [DIRS 129261]) presents 

the ERT in detail. All of the SHT ERT data can be found in the TDMS under the following 
Input DTNs: LL970101004244.026 [DIRS 158281], LL970505404244.031 [DIRS 148609], 
LL971002904244.044 [DIRS 158286], and LL980105204244.049 [DIRS 148610]. 
6.2.2.1.1 Results: ERT 
The discussion of the ERT data reduction can be found in Section 6.1.2.1.1. The saturation 
estimates produced by data reduction model 2, which assumes that the primary pathway of the 
electrical current is through the double layer (Section 6.1.2.1.1), are presented below. The 
interpretation of ERT results of the SHT is shown in Figures 6.2.2.1-1 and 6.2.2.1-2, for the 
heating phase and the cooling phase respectively. The drying and wetting regions in these 
figures are based on hand tracings made over the model 2 saturation estimates. 
In general, the outline of the drying and wetting regions roughly coincides with saturations equal 
to 70 percent or less for the drying zone and 98 percent or more for the wetting zone. A 
significant region of drying is present around the heater. The dry zone is not centered on the 
heater and certainly is not symmetric about the heater. The pattern suggests a distribution of 
moisture that is strongly controlled by fractures. As time increases, the drying zone appears to 
propagate upward, especially after 219 days of heating; also, the minimum saturation estimate 
was near 10 percent. During the cooling phase, the dry zone around the heater appears to remain 
relatively stable; an exception to this observation is the result from September 25, 1997, which 
showed a change in the dry zone near the heaters location. At the end of the cooling phase, the 
image (December 17, 1997) still shows a clear dry zone around the heater and significant wetting 
regions on the lower left flank of the heater. 
6.2.2.1.2 Measurement Uncertainty: ERT 
Many factors may contribute to the uncertainty in the saturation changes in the rock mass 
estimated from ERT. The measurements of the voltage and current at the electrodes are fairly 
accurate. More importantly, the saturation estimates presented here are impacted by one or more 
of the following factors: 
 
The accuracy of the temperature maps in the vertical direction is limited by the sparse 
vertical coverage of the temperature sensors. Errors in the interpolated/extrapolated 
temperature maps will result in erroneous saturation estimates. 
 
The presence of metal in the SHT block such as the heater resulted in measurement 
interference. 
 
Other uncertainty factors that impact the ERT are similar to those listed in 
Section 6.1.2.1.3. 
6.2.2.2 Ground Penetrating Radar (GPR) 
This section describes the borehole radar tomography experiment conducted in the SHT block. 
In the borehole radar method, high frequency electromagnetic signals are transmitted from 
modified GPR antennas in one borehole through subsurface material to a receiving antenna in 
another borehole. Moisture content in the rock strongly influences the propagation of the signal, 

i.e., whether it travels at a high or low velocity or whether it is highly attenuated. The high 
dielectric permittivity of waterin contrast to dry rocktypically results in greatly reduced 
signal velocities. The cross-borehole transmitted signals may be represented as multiple 
raypaths crossing through the zone of interest. If sufficient raypaths are recorded, a tomographic 
image may be obtained through computer processing. The processed tomogram, containing the 
transit time (which depends on the wave velocity), and the amplitude (which depends on the 
wave attenuation), offers a high-resolution approach to monitoring the thermally induced spatial 
redistribution of the moisture content within the rock mass. The effect of temperature on radar 
measurements and its impact on moisture content estimation are included in the processing 
methodology. 
The borehole radar field surveys were conducted in boreholes 15, 17, 22, and 23 (see Figure 6.2-
2). These same boreholes are used for neutron logging as discussed in Section 6.2.3. Boreholes 
22 and 23 are collared from the Observation Drift and boreholes 15 and 17 are collared from the 
Thermal-Mechanical Alcove Extension. The boreholes are drilled several degrees off horizontal 
into the drift, cased with a Teflon liner and grouted into place. Each pair of boreholes defines a 
two-dimensional plane transverse to the heater assembly at mid-length and trending towards this 
assembly. In the case of boreholes 15 and 17, this plane actually extends across the strike of the 
heater. This is not the case with boreholes 22 and 23, which stop just short of the heater. 
A Pulse EKKO 100 radar system was used for the radar data acquisition in the SHT. Section 8.3 
of Single Heater Test Final Report (CRWMS 1999 [DIRS 129261]) presents the GPR data 
acquisition in detail. Five separate surveys were performed using the borehole pairs. The first 
data set was acquired on August 22, 1996 before the heater was turned on (time = T0). Three 
data sets were acquired during heating: on January 15, 1997, three months after heating began 
(T1); on March 12, 1997, five months after heating began (T2); and on May 29, 1997, nine 
months after heating and one day into cooling (T3). The fifth data set was acquired on January 
7, 1998, a little over seven months after the heater was turned off (T4). The complete set of GPR 
data for borehole pair 15 to 171 can be found in Input DTN: LB980901123142.003 [DIRS 
119016]. 
The crosshole radar data collection was performed using two acquisition modes. The first was a 
Zero Offset Profile (ZOP), in which the transmitter and receiver antennas were positioned within 
the boreholes at equal depths such that there was no vertical offset. The second was a Multiple 
Offset Profile (MOP), in which the receiving antenna remained at a fixed depth while the 
transmitter antenna was moved incrementally in the second borehole. Each multiple offset 
profile constitutes a receiver gather. In the SHT surveys, the transmitter and receiver intervals 
were located every 0.25 meters. Each of the necessary raypaths was collected and recorded for 
the subsequent tomographic processing. 
Over the course of the heater experiment, the radar system was operated by using identical 
acquisition parameters for each of the five field surveys. No adjustments, filters, or gains were 
applied to the stored raw data. Therefore, data acquisition (and hence data repeatability) was the 
1 Radar data for the SHT started out as a scoping study to test out feasibility of the method. 
When the data from borehole pair 22 to 23 were found similar to that from borehole pair 15 to 
17, data acquisition in the former pair was stopped after the first three surveys. 

same regardless of who operated the system and whenso long as the antenna configuration was 
the same. Data repeatability is tantamount to successful tomographic differencing and 
interpretation. Small deviations in experimental methodology at such close spacing can result in 
large discrepancies in data processing. 
Further, accurate transport times between the transmitter and receiver antennas must be obtained 
from the radar data to invert for the velocity structure between boreholes. Hence, it is important 
to know the precise time when the transmitter fires (known as zero time). An accurate measure 
of zero time throughout the surveys was obtained by direct airwave measurements (the signal 
from transmitter antenna to receiver antenna in air) with the antennas held together in air and at 
the borehole collars in air. 
6.2.2.2.1 Results: GPR 
Boreholes 15 and 17 are 0.785 meters apart at their collars at the alcove wall and deviate to 
approximately 4.0 meters at their endpoints while remaining in the same plane. Accurate 
coordinates for each transmitter and receiver point (which are at 0.25-meter intervals) were 
determined using the surveyed borehole coordinates. Each multiple offset profile constitutes a 
receiver gather (one receiver depth and many transmitter depths), and a series of these gathers 
are used to construct tomographic images. 
Figure 6.2.2.2-1 shows two typical receiver gathers for the 15-17 borehole pair. The time scale 
along each trace is in nanoseconds. The transport times are picked at the moment of first arrival 
of energy, as marked for example in Figure 6.2.2.2-1. The data (DTN LB980901123142.003 
[DIRS 119016]) consist of the XYZ coordinates of the transmitter (borehole 15) and receiver 
(borehole 17) and the respective picked transport times for each survey. 
Figures 6.2.2.2-2A through D show the velocity (in a 4 m  8 m field in the plane of boreholes 
15 and 17) for the surveys taken 5, 7, 9, and 17 months after the start of heating. 
Changes in moisture content (rather than the absolute moisture content) are of primary interest. 
Therefore, it is useful to subtract the velocity values between two tomograms since velocities 
relate directly to liquid saturation. The baseline velocity tomogram is subtracted from the four 
postheating velocity tomograms, producing four velocity-difference tomograms: T1-T0, T2-T0, 
T3-T0, and T4-T0. The difference tomograms are shown in Figures 6.2.2.2-3AD. The 
tomograms all show significant velocity increases and decreases. In general, radar velocities 
increase with water content decrease. 
The derived tomograms are submitted under Summary DTN: LB0208GPRSHTCP [DIRS 
170578], as identified in Table 6.2-1. 
6.2.2.2.2 Measurement Uncertainty: GPR 
The uncertainties associated with data acquisition and processing include: 
 
Relocation errors of the transmitters and receivers for each survey. The antennas were 
relocated to within one centimeter. 

 
Zero time shift. The methodology employed reduced zero time errors to less than 0.5 ns. 
 
Transport time picking errors less than one sample, or 0.2 ns. The transport times must 
be picked very accurately: due to the short distance between boreholes, small errors in 
geometry and travel-time picks can have a significant effect on the results. The accuracy 
and repeatability of the picks is better than one sample (0.2 ns) over a 20 ns transport 
time. Despite the low signal amplitudes, a sufficient number of transport times could be 
picked to obtain an estimate of the two-dimensional interborehole velocity structure, 
based on an inversion as described by Peterson (1986 [DIRS 101698]). An error in 
picking is dependent primarily on the zero time adjustment and the repeatability of 
transmitter/receiver locations. These are both quite accurate. 
 
Inversion errors, which can be calculated to be less than 0.03 ns. 
Though the results presented here in terms of difference in velocities are quite accurate, 
converting these results to water content and liquid saturation would involve assumptions 
regarding porosity, temperature, and locations of the radar survey. 
6.2.2.3 Neutron Logging 
Neutron logging is used to determine moisture content in rocks and soils. Neutron logging was 
used to monitor moisture content in boreholes 15, 17, 22, and 23 (see Figure 6.2-2) during the 
SHT. The neutron probe used in this test is a Campbell Pacific Nuclear Model 503DR. A 3.81 
cm (1.5 in.) diameter probe (serial number H37067677) was used for the SHT. Under ambient 
conditions, the sampling volume surrounding the probe has a diameter of approximately 15 cm; 
this volume diameter increases as moisture content decreases. 
For the SHT, a Teflon tube, with an RTD bundle mounted on its outside, was inserted into the 
boreholes and grouted into place. The Teflon tube permitted easy insertion, placement, and 
removal of the tool. Neutron counts were measured in each borehole at 10 cm intervals. 
Calibrations to known moisture contents were conducted for the neutron tool in a liner-RTD-
grout assembly identical to that used in the SHT boreholes. Water content was calculated from 
the neutron counts using the calibration results. 
The preheating neutron loggings were conducted on August 21, 1996, prior to initiation of 
heating (August 26, 1996). A total of eighteen neutron loggings were conducted in each of the 
four neutron boreholes in the SHT. Section 8.6 of Single Heater Test Final Report carries 
detailed descriptions of the neutron logging. The SHT neutron data can be found in the TDMS 
under Input DTN: LL980106904244.051 [DIRS 118963]. 
6.2.2.3.1 Results: Neutron Logging 
The neutron results are presented as the difference in water content between the heating/cooling 
measurements and the preheating baselines. Positive difference fraction volume water means 
gaining moisture content; negative difference fraction volume water means drying. To calculate 
water saturation, one can simply divide the fraction volume water content by the porosity. All of 

the neutron results were smoothed to remove some variations, but without changing their 
amplitudes very much. 
As examples of the neutron results in the SHT, Figures 6.2.2.3-1 and 6.2.2.3-2 show smoothed 
data for the difference fraction volume water in borehole 15 as a function of depth from the 
collar, at the end of the heating phase and the end of the cooling phase, respectively. The 
shortest distance between the borehole and the heater is about 2.07 m, at approximately 5.75 m 
from the collar of the borehole. The peak temperature in this borehole before the heater was de-
energized was approximately 62C. During the cooling phase, the neutron results show a slight 
rewetting, especially at the closest point between the heater and the borehole. 
The neutron logging in the SHT region displayed changes in the moisture content in the heated 
rock mass. The degree of drying seemed in good correlation with the temperatures in the rock. 
The decreases in water content for the drying regions were small, because the neutron logging 
boreholes were not close to the heater. Rewetting was observed at a few localized regions during 
the cooling phase. 
6.2.2.3.2 Measurement Uncertainty: Neutron Logging 
The uncertainty of the neutron logging itself is about 0.1 percent volume water content. 
Measurements are sensitive to the presence of elements, such as chlorine and boron, which have 
large neutron capture cross sections. The uncertainty caused by those minerals is difficult to 
assess, but probably not significant in the tuff. 
Under ambient conditions, the sampling volume surrounding the probe has a diameter of 
approximately 15 cm; this volume diameter increases as moisture content decreases. The 
neutron tool was calibrated to the exact liner-RTD bundle-grout, but variations in the grout 
volume along a borehole (possibly caused by changes in the borehole diameter, breakout regions, 
etc.) will introduce uncertainty in the measured results. It is assumed that the water content in 
the cured grout does not change during the course of the test. If the temperature causes the grout 
to dehydrate, it will affect the neutron logging results, because the neutron tool is very close to 
the grout column. 
6.2.2.4 Active Pneumatic Testing and Passive Hydrological Monitoring 
Preheating Air Injection 
Characterization by means of air injection tests, prior to the onset of heating, provides an 
estimate of the fracture permeability in the test block. Air permeability testing in the SHT block 
was performed prior to the heating phase in boreholes 1 through 31 as shown in Figure 6.2-2. 
The preheating air injection data, which have been submitted under Input DTN: 
LB960500834244.001 [DIRS 105587], contain 47 files of pressure, temperature, and flow data 
from each air-injection test, located in TDMS data tables S97535_001 through S97535_047. 
Data include the change in pressure from initial pressure in each borehole (.kPa), as well as 
columns of data containing the injection flow rate (SLPM for standard liters per minute), the 
barometric pressure (kPa), the relative humidity (percent), and temperature (C). Permeabilities 
estimated from injections tests performed in a short straddle packer in borehole 6 are found in 

TDMS data table S97535_048. Permeabilities estimated from injection tests performed in SHT 
boreholes isolated by a single pneumatic packer at the collar of the borehole are found in TDMS 
data table S97535_049. 
Heating/Cooling Air Injection and Passive Monitoring 
During the heating and subsequent cooling phase, air injection tests were periodically performed 
in boreholes 16 and 18 to provide information on the changes in flow arising from coupled 
thermal-hydrological processes. In boreholes 16 and 18 are strings of four pneumatically 
inflated packers to isolate the borehole into different instrumented intervals, numbered from the 
closest to the collar of the borehole (1) to the deepest (4). Behind each packer are relative 
humidity, temperature, and pressure transducers. The eight instrumented intervals are referred to 
by borehole number followed by the instrument interval number, i.e., 18-3 is the third instrument 
cluster from the collar in borehole 18. Injection tests were performed in three zones: (1) zone 
1 between inflated packers 1 and 3 with packer 2 deflated, (2) zone 2 between inflated packers 
2 and 4 with packer 3 deflated, and (3) zone 3 between inflated packer 4 and borehole bottom 
with all packers inflated. Measurement data associated with the quarterly injection tests were 
submitted to the TDMS under the following Input DTNs: 
 
LB970100123142.001 [DIRS 158287] 
 
LB980120123142.008 [DIRS 158280] 
 
LB970500123142.001 [DIRS 158293] 
 
LB0204SHAIRK3Q.001 [DIRS 159543] 
 
LB971000123142.001 [DIRS 118965] 
The heading of the data reports contains a description of the data in comma-separated format. 
When air injection testing was not in progress, the packers in boreholes 16 and 18 were left 
inflated, and pressure, temperature, and relative humidity sensors were used for passive 
monitoring of the heater test. Passive monitoring data from August 1996 through December 
1997 can be found in Input DTN: LB980901123142.002 [DIRS 119009]. 
Postcooling Air Injection Characterization and Tracer Tests 
Postcooling characterization by air injection was done during the third and fourth weeks of 
January 1998. Of the original 31 SHT boreholes, only boreholes 1, 3, 6, 7, and 19 were available 
for postcooling air injection testing. The other 26 boreholes contained grouted instrumentation 
and were not accessible. The postcooling characterization strategy was to duplicate the 
preheating characterization test conditions when feasible. Therefore, inflatable packers were 
installed near the collar of boreholes 3, 6, 7, and 19 to depths identical to those of their 
preheating characterization positions. The hydrology boreholes 16 and 18 were already 
equipped with packer strings for the duration of the SHT and were not modified for postcooling 
characterization. 
As part of the postcooling characterization, gas tracer tests were conducted between borehole 1, 
the heater borehole, and boreholes 16 and 18. The purpose of the tracer tests was to gain a better 
understanding of the hydrological conditions that permitted rapid vapor transport from the heater 

borehole 1 vicinity into borehole 16 resulting in water accumulation in borehole 16. The gas 
tracer testing data, together with the postcooling air injection data, are located under Input DTN 
LB980901123142.001 [DIRS 118999] in the TDMS. 
The results of the pneumatic tests and passive monitoring data will be briefly summarized in 
Section 6.2.2.4.1. For a more detailed description and discussion of the measurements and 
results, readers are referred to Sections 8.1 and 8.2 of Single Heater Test Final Report (CRWMS 
M&O 1999 [DIRS 129261]), and the references therein. The Summary DTN is listed in 
Table 6.2-1. 
6.2.2.4.1 Results: Active Pneumatic Testing and Passive Hydrological Monitoring 
Estimated permeabilities from preheating air-injection tests have been calculated using 
Equation 5.1-1 and appear in Tables 6.2.2.4-1 and 6.2.2.4-2. The three orders of magnitude 
range in the permeability values can be attributed to flow through fractures of hierarchical scales, 
with the microfractures accounting for the lower values, and longer fractures (a few meters in 
extent) responsible for the higher values. 
Changes in the permeabilities for boreholes 16 and 18 during heating and cooling are shown in 
Figure 6.2.2.4-1 as a ratio of transient permeabilities to preheating (baseline) value. For both 
16-4 and 18-4, a decrease in permeability is shown after the initiation of heating, followed by an 
increase after heating has concluded. This decrease is interpreted as an increase in fracture liquid 
saturation, decreasing the relative gas-phase permeability. Similarly, the increase is attributed to 
the drainage of the water from the fractures. The increase between the baseline permeability and 
postcooling estimates in the back zone of boreholes 16 and 18 may result from lower fracture 
saturations after heating, because of the reduced saturation in the vicinity of the heater borehole, 
or to overall opening of fractures. 
Pressure, temperature, and relative humidity in boreholes 16 and 18 were continuously 
monitored during heating and cooling. Figures 6.2.2.4-2, 6.2.2.4-3, and 6.2.2.4-4 show the 
temperature, humidity and pressure data, respectively. The pressure buildup in sensor 16-4 
reflects accumulation of water in borehole 16 during the heating phase. A rise in pressure was 
discernable after only a few days of heating, indicating that water was rapidly mobilized from 
very near heater borehole 1 to 16-4. Each drop in pressure at 16-4 shown in Figure 6.2.2.4-4 
data reflects the sampling of water that had accumulated in the borehole. 
Post cooling site characterization activities began in January 1998. Table 6.2.2.4-3 shows the 
postcooling air permeability values of various injection zones estimated using Equation 5.2-1. 
Table 6.2.2.4-4 shows a comparison of permeability estimates from preheating and postcooling 
measurements using data from injections into boreholes 3, 6, 7, 16, 18, and 19. Direct 
comparison is possible in these boreholes because of the identical preheating and postcooling 
packer configurations. The postcooling and preheating permeability values in these boreholes 
have the same order of magnitude. Furthermore, a study of the cross-borehole steady-state 
pressure response shows that they are also comparable under preheating and postcooling 
conditions (i.e., the data do not reveal that the pneumatic connectivity between the boreholes 
tested had been significantly altered by heating and cooling). The ratios of post to preheating 
permeability values (Table 6.2.2.4-4), however, show a consistent upward trend in the 

permeability values from preheating to postcooling. This increase in permeability, ranging from 
a factor of 1.2 to a factor of 3.5, may be attributed to opening of fractures from heating. 
Postcooling air injection tests were also utilized to test the hypothesis that a fast path for vapor 
transport exists between heater borehole 1 and borehole 16, and that it was responsible for the 
accumulation of condensed water in borehole 16, zone 3. With this in mind, air permeability 
tests were carried out in a multizone configuration for boreholes 1, 16, and 18. Specifically, 
injection was conducted in six consecutive zones in the heater borehole 1, and the cross-borehole 
pressure response in the zones behind the fourth packer (referred to as zone 3 earlier) in 
boreholes 16 and 18 was measured to identify plausible fast-path connections. Upon conclusion 
of air permeability tests, gas tracer tests were also performed between the heater borehole 1 and 
boreholes 16 and 18 to investigate the possible presence of fast paths for vapor transport. 
For the gas tracer tests, zone 3, behind the 4th packer in boreholes 16 and 18, was chosen as the 
tracer withdrawal interval, and borehole 1 was chosen as the tracer injection borehole. Based on 
the results of the postcooling air permeability tests, two intervals in borehole 1 that gave the 
largest cross-borehole pressure response were selected for gas tracer injections. The first 
interval, extending from 3.83 m to 4.42 m from the collar of the borehole, produced a strong 
pressure response in zone 3 of borehole 16 and a much weaker response in zone 3 of borehole 
18. The second interval, between 5.05 m and 5.64 m as measured from the collar of the 
borehole, produced a stronger response in zone 3 of borehole 18 than in zone 3 of borehole 16. 
The perpendicular layout between borehole 1 and boreholes 16 and 18, which significantly 
complicates transport geometry, made the test results less amenable to detailed transport 
analysis. The purpose of the tracer testing was to gain an understanding of the rapid gas flux that 
gave rise to the observed presence of water (condensate) into the back of borehole 16, as 
opposed to borehole 18, from which no condensate had been sampled. Thus, it was determined 
to focus on the first arrival of tracer and qualitatively examine the rate at which cumulative mass 
recovery occurred. 
The results of five gas tracer tests are shown in Table 6.2.2.4-5. Tracer transport from zone 3 of 
borehole 1 to zone 3 of borehole 16 was extremely rapid, with 100 percent tracer recovery 
occurring within 30 minutes from injection. First arrival of tracer to zone 3 of borehole 18 took 
more than twice as long and 100 percent tracer recovery took approximately 15 hours. The 
differences in the transport times and recovery efficiencies suggests that the path between zone 3 
of borehole 18 and borehole 1 is much more tortuous and indirect than the path between zone 3 
of borehole 16 and borehole 1. This, together with the results of air permeability tests, support 
the hypothesis of a direct fracture connection between borehole 1 and zone 3 of borehole 16 that 
allows for rapid vapor transport. This direct fracture connection was subsequently confirmed by 
visual inspection of the over cores of borehole 16. 
6.2.2.4.2 Measurement Uncertainty: Active Pneumatic Testing and Passive 
Hydrological Monitoring 
Assumptions about the validity and accuracy of the acquired data of humidity, temperature, gas 
flow-rate and pressure vary, depending on the sensor and the method by which the sensor is used 
to perform the measurement. Accuracy as used here is defined as combined nonlinearity, 

hysteresis, and nonrepeatability. The data acquisition equipment used to record the sensor signal 
can introduce an inaccuracy into the measurement of the sensor output. However, here the 
accuracy and repeatability of the acquisition system (Keithley Model 2001 Digital Multimeters 
were used) far exceeds the limitations of the sensors being employed. The accuracy of the 
Keithley 2001 Digital Multimeter is approximately 25 ppm (where 10,000 ppm = 1%) of the 
full-scale output (FSO) for voltage measurements and 56 ppm of the FSO for resistance 
measurements. Limitations of the data acquisition systems can therefore be neglected in further 
discussion. 
In the preheating and postheating air-injection testing, pressure measurements were performed 
using Setra Model 204C pressure sensors. These sensors have an accuracy of 0.2 percent FSO. 
Boreholes 16 and 18 used Endevco Model 8520A-50 sensors, which also have an accuracy of 0.2 
percent FSO. However, heating/cooling measurements of pressure by the eight Endevco sensors 
installed in the heated region indicated a significant thermal shift, ranging from 1 percent to 1.5 
percent over the temperature range 10C to 150C. Vaisala Model HMP235-A humidity sensors 
were used to monitor temperature and relative humidity within boreholes 16 and 18. The 
humidity measurement has a tolerance of 1.0 percent relative humidity below 90 percent 
relative humidity and an accuracy of 2.0 percent relative humidity above 90 percent relative 
humidity. The temperature measurement performed with the HMP235-A has an accuracy of 
0.2C. Sierra Instruments Model 840 Mass Flow Controllers (MFC) were used to monitor gas 
injection flow rates. Sierra Instruments specifies an accuracy of 1.0 percent FSO. However, in 
thermal testing field conditions, the accuracy is derated to 10.0 percent FSO. This derating of 
performance reflects the sensitivity of the MFC to the shock, vibration, and dust that it is 
subjected to during underground testing. 
Short-circuiting of gas flow caused by the high density of boreholes within the test block may 
increase the estimated permeability. The degree to which borehole short-circuiting of fractures 
influences the estimated permeability is difficult to estimate. However, the range of values 
obtained here does not significantly differ from values obtained in the Drift Scale Test (Section 
6.3.2.4) or from surface-based boreholes. 
6.2.2.5 Laboratory ParametersSaturation, Porosity, Density, Moisture Retention 
Curves 
Preheating 
As part of the preheating characterization, laboratory measurements of saturation, porosity, bulk 
density, particle density, and gravimetric water content for cores from the SHT area were 
conducted. These studies determine the amount of pore water available for evaporation and 
boiling during the heating phase. Hydrological laboratory measurements were carried out for 
grab samples from wet excavation of the Observation Drift, and for cores, wrapped in sealed 
packets after coring from three wet-drilled boreholes (boreholes 1, 6, 5) in the SHT block. The 
grab samples, nominally 12  12  6 in size, were broken open with a jackhammer to retrieve 
samples (200 to 700 g in mass) from the interior regions away from drying surfaces. The results 
of these measurements have been submitted to the TDMS under DTN LB970500123142.003 
[DIRS 131500]. Detailed discussion of these measurements can be found in Single Heater Test 
Final Report (CRWMS M&O 1999 [DIRS 129261]). 

In addition to the above parameters, moisture retention curves were also measured, at 
temperatures of 25.1C, 49.6C and 93.7C for 11 SHT core samples from boreholes 20 (CHE-1) 
and 21 (CHE-2). Prior to the retention-curve measurements, the dry bulk density, the saturated 
bulk density, and porosity of these samples were determined at room temperature. The results of 
these measurements are extracted from a report by Lin et al. (2002 [DIRS 159099]). Data for 
25.1C before heating can be found in the TDMS under Input DTN LL020506123142.021 
[DIRS 169256]. 
Postcooling 
A number of boreholes were dry-drilled following the termination of the cooling phase of the 
SHT for postcooling characterization. In particular, protected (wrapped and sealed) cores from 
three dry-drilled boreholes (boreholes 199, 200, 201) were tested for porosity, density, and water 
content or liquid saturation. The locations of these protected cores (Table 6.2-3) were designed 
to pass through both the anticipated dryout and condensing regions developing in the SHT 
block as a result of the heating. While the quantities measured and the methodology of these 
postcooling laboratory measurements remain the same as their preheating counterparts, the focus 
here in the postcooling effort is substantially different. In the preheating results, the intent is to 
estimate an average initial liquid saturation of the matrix cores; in the postcooling results, the 
focus is on the change from their initial value as a result of thermal-hydrological coupled 
processes, and more importantly, the spatial location of the cores (with respect to the heater) 
where changes have occurred. The data have been submitted to the TDMS under the Input DTN 
LB980901123142.006 [DIRS 119029]. 
6.2.2.5.1 Results: Laboratory ParametersSaturation, Porosity, Density, Moisture 
Retention Curves 
Preheating 
The measurements of wet-drilled cores from boreholes 1, 6, and 5 of the SHT are shown in Table 
6.2.2.5-1. These laboratory measurements were conducted following the Technical 
Implementation Procedure YMP-LBNL-TIP-AFT 2.0. Samples were placed in containers with 
tight-fitting lids and immediately weighed. The samples were subsequently oven-dried at a 
temperature between 100C to 110C, until they reached a constant weight (from several 
weighings). They were then placed in a desiccator, cooled, and weighed to determine the 
gravimetric water content. The samples were then water-saturated in a vacuum chamber, after 
which they were weighed following the method of Archimedes (i.e., immersed in air and water) 
to determine the weight under conditions of full saturation and the sample bulk volume. 
Knowledge of the dry weight, saturated weight, and sample bulk volume were used to calculate 
bulk density, porosity, and particle density. 
Table 6.2.2.5-1 shows that saturation is approximately 95 percent. The variability of rock 
properties is evident. In the core processing procedure, any observation of factors potentially 
affecting the results is recorded. The abbreviated description for each core with abnormal 
features is included in the table footnotes. This soft information forms the basis for 
distinguishing cores that yield reliable weight measurement from cores that give potentially 
abnormal and inaccurate measurements. Large fractures with porous infill material generally 

introduce greater inaccuracy into the weight measurement. In the resaturation step needed to 
determine total pore volume with cores stored in water, debris is sometimes observed. Cyclic 
resaturation steps are used to quantify and to compensate for solid losses. 
The data from two grab samples from the wet excavation of the Observation Drift near the SHT 
block are shown in Table 6.2.2.5-2. Five subsamples were tested. 
One of the subsamples had an 81 percent saturation, while the saturation of the other four 
subsamples was 94 percent or higher. These measurements provide the only site-specific data 
for liquid saturation at the onset of the SHT. Consequently, those values resulted in using 92 
percent initial saturation in modeling of the SHT. 
Bulk density and porosity of the 11 core samples intended for moisture retention curves are 
shown in Table 6.2.2.5-3. These specimens have no obvious large cavities and inhomogeneous 
inclusions. The specimens were dried in a vacuum oven at a temperature of about 35C until 
their weights became constant for several days. Dry bulk density was calculated by dividing the 
dry weight with the specimen volume. The specimens were then saturated with water under 
vacuum condition and remained in water until their weights were constant for several days. 
Saturated bulk density was calculated from the saturated weights. Porosity was calculated by 
subtracting the dry density from the saturated density, and dividing by the density of water. The 
average porosity for these samples is 11.1 1.1 percent. 
To start the moisture retention curve measurement in the wetting cycle at room temperature, the 
specimens were dried and placed in the relative humidity chamber at about 25C and 20 percent 
relative humidity. The sample weights were determined daily. When the weights reached a 
constant value for several days, it was assumed that equilibrium was established, and the sample 
weights were used to calculate the saturation level at that relative humidity condition. Saturation 
was calculated by comparing the measured weights with dry weights and taking into account 
porosity. Then the relative humidity was increased to 35 percent, and the procedures were 
repeated. This was repeated for the higher relative humidity levels at 50, 65, 80, and 95 percent. 
After this, the relative humidity was decreased according to the following steps: 80, 65, 50, 35, 
and 20 percent to start the measurements in the drying cycle at room temperature. The 
maximum saturation achieved at the highest relative humidity was between 30 percent and 40 
percent (see below). The process was then repeated for the drying portion of the measurement. 
This cycle of measurement was repeated at different temperatures, 50C and 94C, without the 
measurements at 35 and 65 percent relative humidity. 
Moisture retention curves of the SHT specimens at a temperature of 25.1C are shown in Figure 
6.2.2.5-1. Only the average properties are shown for clarity. The averages are the mean 
saturation and matric potential of all 11 specimens. The error bars for saturation are the standard 
deviation from the average saturation at a matric potential level of all samples. There is very 
little hysteresis at all temperatures. 
Postcooling 
Table 6.2.2.5-4 presents laboratory-determined saturation, porosity, and particle density. 
Average porosity and particle density values are given at the end of the table. An average value 

for liquid saturation is not a meaningful parameter in these postcooling cores, because liquid 
saturation of the cores reflects the thermal-hydrological processes that have taken place in the 
SHT, and their importance lies in their spatial variability with respect to the heat source. The 
porosity of three core samples (local ID H-1, H-22, H-27) is exceptionally high, and is attributed 
to visible evidence of fractures. In turn, the liquid saturation of these samples would be less 
reliable. 
6.2.2.5.2 Measurement Uncertainty: Laboratory ParametersSaturation, Porosity, 
Density, Moisture Retention Curves 
A balance with a sensitivity of 0.01 mg calibrated to a traceable standard was used to weigh the 
samples. Saturation was calculated by comparing weights with dry weights and taking into 
account porosity. One difficulty was the establishment of steady weight values at the highest 
humidities, particularly at high temperatures. The reasons for this difficulty are that the relative 
humidity is difficult to control at high humidities and the weight of the samples is more sensitive 
to changes in relative humidity when the relative humidity is high. Refinement of the control 
parameters on the humidity chambers aided in solving this problem. The measurement 
uncertainty involved in determining the moisture-retention curves include the measurements of 
weights, relative humidity, and sample size. The sample dimensions are used to determine 
sample wet and dry densities. It is estimated that the thickness of the sample can be determined 
to  0.005 mm and diameter to  0.05 mm. This results in an error in sample volume of 
approximately  0.3 percent. The uncertainty in dry weight is estimated to be approximately 
0.00002 g and for wet weight approximately 0.0001 g. The error in the wet weight is higher than 
that of the dry condition because of the difficulty in achieving and maintaining saturation levels 
of 100 percent. These uncertainties result in errors in dry and wet densities of approximately 0.3 
percent. 
When repetitive measurements are made on samples over a period of several days, such as the 
determination of weights at a specified relative humidity, the uncertainty in the measurement is 
often less than the statistical uncertainty in the mean of the measured parameter. In such cases, 
the error is taken as one standard deviation of the mean. The errors in saturation determined at 
specific temperature and relative humidity are estimated to vary from approximately 0.07 to 0.5 
percent water saturation, which includes errors associated with dry and wet densities discussed 
above. Thus, the relative uncertainty is estimated to be between approximately 1 and 10 percent, 
with a 1 to 2 percent error most common. 
The uncertainty in the relative humidity is approximately  2 percent. When propagated through 
Kelvins equation to matric potential, the absolute uncertainties are fairly low, but the relative 
uncertainties are high at the matric potentials closest to zero (as much as 200 percent at a matric 
potential of -1.36  2.73 MPa). 
Other factors that can affect accuracy of laboratory measurements include: 
 
Ability to account for all moisture in the rock sample because of the condensation of 
water on walls of core container. These are estimated by absorbing water from the 
container with a paper cloth and weighing the cloth. 

 
Large fractures and cores with infill material generally introduce greater inaccuracy in 
the weight measurements. 
 
Averages and standard deviations introduce a measure of data uncertainty. 
6.2.3 SHT Mechanical Measurements 
The discussion of mechanical data for the SHT has been divided into several subsections, based 
on the type of measurement: 
 
Multipoint borehole extensometer (MPBX) displacements were measured within the 
rock mass surrounding the SHT. These measurements were used to evaluate numerical 
models related to thermal-hydrological-mechanical coupling as well as to provide data 
for determination of rock mass thermal expansion. 
 
Wire and tape extensometer measurements were used to measure movement of the free 
surfaces of the SHT block. 
 
Borehole jack tests were performed to measure rock mass modulus at ambient and 
elevated temperatures. 
 
Rock-bolt loading tests were performed to evaluate qualitatively the effects of elevated 
temperature on rock bolt performance. 
 
Laboratory properties/parameters such as elastic modulus, Poissons ratio, and thermal 
expansion were measured. 
 
Field properties/parameters, including rock-mass thermal expansion estimations from 
the MPBX displacement data, were measured. 
Detailed descriptions of all SHT mechanical measurements may be found in Section 9 of Single 
Heater Test Final Report (CRWMS M&O 1999 [DIRS 129261]). SHT mechanical 
measurement Input DTNs and Summary DTNs are listed in Tables 4-2 and 6.2-1, respectively. 
6.2.3.1 MPBX Displacements 
Displacements were measured both within and on the surfaces of the SHT block. These 
measurements support numerical model evaluations related to thermal-mechanical-hydrological 
coupling and also provide data for determination of rock-mass thermal expansion. All 
displacements reported in this document follow the convention of extension positive. Four 
boreholes were instrumented with MPBXs: three boreholes drilled parallel to the heater axis and 
one borehole drilled perpendicular to the heater axis. The MPBXs include six or seven anchors 
spaced along the length of the borehole. Displacements were measured using high temperature 
linear variable differential transducers (LVDTs) and vibrating wire displacement transducers. 
Wire extensometers and tape extensometer pins were installed on the three free surfaces of the 
SHT block (see Figures 6.2.3.1-1 and 6.2.3.1-2). Note that the legend for the abbreviations in 
these two figures is as follows: BX is multiple-point borehole extensometer, WX and WXM are 

wire extensometers, RB-LC is rock bolt load cell, and BJ is borehole jack. The wire 
extensometers consist of spring-loaded linear potentiometers mounted on brackets welded to 
steel rebar segments. These segments are grouted into the rock near the top of the SHT block at 
six locations (two on each of the three free surfaces of the SHT block). These surface 
displacements are intended to augment the displacement data collected from the MPBXs. 
Detailed discussion of the SHT displacements is presented in Section 9 and 11.2 of Single Heater 
Test Final Report (CRWMS M&O 1999 [DIRS 129261]). SHT displacement data can be found 
in the TDMS under the Input DTNs: SN0401F3511695.012 [DIRS 169262], 
SN0401F3511695.013 [DIRS 169263], and LL980109904243.015 [DIRS 158299]. Because of 
the abundance of SHT displacement data, only representative discussion and graphics are 
provided. All displacement data and graphics can be accessed in the Summary DTN identified in 
Table 6.2-1. 
6.2.3.1.1 Results: MPBX Displacements 
Representative discussion and graphics are presented here. Figure 6.2.3.1-3 shows displacement 
data for MPBX-3, which is located approximately 1.5 m from the heater, above and to the right 
(south). The data from MPBX-3 show an increase in gage length (extension) for all anchor 
positions through about the first 70 days. From 70 to about 100 days, all anchors exhibit a 
gradual decrease in gage length. After about 100 days, all anchors except MPBX-3-1 reverse 
trend and increase extension through the second quarter of heating. Anchor MPBX-3-1 
continues the relative compression from day 100 through about day 180, when it experiences a 
sudden extensional jump followed by continued extension throughout the fourth quarter of 
heating. The extensional jump at about day 180 is seen only in anchor MPBX-3-1; therefore, it 
is likely that it results from discrete movement along a fracture or system of fractures located 
between anchors MPBX-3-2 and MPBX-3-1. This region corresponds to similar presumed 
behavior near anchor MPBX-1-1 (MPBX-1) near day 210. The change in slope for most of the 
anchor responses after about 70 days may be the result of matrix thermal expansion closing 
existing fractures, thus limiting additional thermally driven displacements until a greater volume 
of rock is heated. Thus, three-dimensional confinement effects may influence the response of 
some anchors. 
The cool-down data for MPBX-3 are also included in Figure 6.2.3.1-3 (cooling starts at day 
275). Four gages in MPBX-3 are operational; gages MPBX-3-4 and MPBX-3-5 are suspected to 
have failed from unknown causes during heating. MPBX-3 exhibits step-like decreases in all 
operational gages during cool down. As with MPBX-1, this type of behavior may be 
characteristic of the rock mass deformation associated with normal and shear deformation of 
fractures in the cooling rock mass. This type of behavior should not be unexpected in a fractured 
rock mass. 
Wire and tape extensometer pins were placed on the three free surfaces of the SHT block (see 
Figures 6.2.3.1-1 and 6.2.3.1-2). Because the measurements are made from short pins installed 
near the rock surface, they can be influenced by discrete block movement. All the wire 
extensometer stations show displacement changes of over several millimeters, with the exception 
of WX-4, which experienced displacements of less than 1 mm throughout the test. The data 
from the wire extensometers are provided in tabular form in Table 6.2.3.1-1. The data from the 
manual tape-extensometer measurements are given in Table 6.2.3.1-2. The data show that the 

horizontal cross-drift measurements are largest for WXM-1, WXM-2, and WXM-3, with all 
measurements compressive (i.e., shortening of the gage length). In other words, the surface pins 
are moving away from the SHT block in all cases. These displacements are consistent with the 
gross displacements measured using the MPBXs. In addition, the tape extensometer results for 
WXM-2 are consistent with the large displacements measured by the wire extensometer station 
WX-2. This suggests gross surface displacements near the surface of the SHT block to the left of 
the heater. It is likely that either or both of the WXM-2 pins are located in a loose block of rock, 
which appears to have loosened almost immediately during the SHT. The subsequent data 
suggest that the block(s) stabilized somewhat, with only minor additional displacement after 
September 24, 1996. 
6.2.3.1.2 Measurement Uncertainty: MPBX Displacements 
There are several potential sources for measurement uncertainty in the displacement 
measurements presented in this section. These uncertainties, quantifiable and nonquantifiable, 
are listed below: 
Quantifiable 
 
The accuracy of the instrumentation itself. The gage range and accuracy of SHT 
displacement-related instrumentation are presented in Table 6.2.3.1-3. 
 
The conversion of the electrical output to engineering units. The uncertainty from these 
equations and the round-off error inherent in the data conversion are negligible. 
Nonquantifiable 
 
Electrical interference, such as spurious signals from power surges, can cause low-
magnitude noise, unexplained meandering in the data, or high-magnitude spikes. 
 
Unidentified sensor or MPBX assembly stability issues have caused a few LVDTs or 
vibrating wire gages to either produce bad data for an extended period of time before 
returning good data, or to have an unexplained shift in magnitude while maintaining 
expected rates of behavior on both sides of the shift. 
 
The physical location of the gages in the test region is difficult to precisely determine. 
The location uncertainty is particularly important in regions of high temperature 
gradient, of which hydrological and thermal expansion behavior are thought to be strong 
functions for certain temperature ranges. 
 
The uncertainty related to the choice of method for computing thermal expansion of 
Invar rods, based on measured temperatures along MPBXs, is difficult to estimate. 
Piecewise linear discretization using average temperature values and a 4th-order 
polynomial for thermal expansion as a function of temperature were used for the SHT. 
The choice of another method (e.g., an integral function along the length of the rods) 
requires different assumptions that may be as reasonable as the method chosen. The 

magnitude of any discretization error is likely not large enough to affect the general 
trends in thermal-mechanical deformation of the rock illustrated by the data. 
 
Instruments can degrade or fail. 
 
Anchors can slip (considered possible but unlikely). 
 
The temperature change near the anchor heads could affect LVDT calibration constants. 
This uncertainty is anticipated to be negligible. 
6.2.3.2 Borehole Jack 
Borehole jack tests were performed in ESF-TMA-BJ-1 (borehole 19). Detailed discussion of the 
borehole jack tests is presented in Sections 9.2 and 11.2 of Single Heater Test Final Report 
(CRWMS M&O 1999 [DIRS 129261]). Because the rock-mass modulus measured using the 
borehole jack is directional (perpendicular to the borehole), an estimate of horizontal modulus 
anisotropy was not possible. It is likely that some anisotropy in modulus exists locally because 
of differences in fracture stiffness for each set of fractures present in the SHT block. Also, it is 
likely that the rock-mass modulus varies across the repository block. These measurements, 
which included 15 ambient and 10 elevated-temperature measurements, were taken at five 
locations within the testing borehole at nine different times during the heating and cooling phases 
of the SHT. Consequently, the effects of temperature on rock-mass modulus were examined. 
Borehole jack data may be found in Input DTN: SNF35110695001.010 [DIRS 158300]. 
6.2.3.2.1 Results: Borehole Jack 
The results from the borehole-jack testing show that the measured rock mass modulus ranges 
from about 3 to 23 GPa where the higher values were generally associated with increases in 
temperature. The highest value is for the deepest measurement location in the borehole 
(approximately 6.2 m from the collar). This location corresponds to roughly 0.33 m from the 
heater borehole, about 1.5 m from the end of the heater. Measurement at this location 
approximately 110 days before and 190 days after resulted in moduli of approximately 8.5 GPa 
and 9.2 GPa, respectively. This high value of 23 GPa may be due to measurement error. All the 
other borehole-jack data are relatively low, less than 12 GPa. 
The data presented in Table 6.2.3.2-1 include italicized results in which the two LVDT readings 
(far and near) differ by slightly greater than 0.02 in. at the maximum test pressure. According to 
the American Society for Testing and Materials (ASTM) (ASTM D4971-89 [DIRS 101786], 
p. 3), these data should be discarded because of uneven loading. The fractured nature of the rock 
surrounding the borehole made it difficult in some cases to set the borehole jack at those 
locations. However, the data presented represent only slight deviation from the ASTM criteria 
(ASTM D4971-89, p. 3 [DIRS 101786]) and are presented to qualitatively assess modulus 
difference along borehole BJ-1. The italicized data should not be used in calculations requiring 
rock mass modulus. 

6.2.3.2.2 Measurement Uncertainty: Borehole Jack 
Measurement uncertainties in SHT borehole-jack measurements include those associated with 
accuracy and precision as tabulated in Table 6.2.3.1-3 and proximity to fractures. The borehole 
jack is better suited for local regions that are intact rather than fractured rock. Also, elevated 
temperatures, especially near peak temperatures in the SHT block, may affect the performance of 
the borehole jack. 
6.2.3.3 Rock Bolt Load 
Eight rock bolt load cells were installed on Williams B7X Hollow Core rock bolts as part of the 
SHT mechanical testing program. The objective was to evaluate qualitatively the effects of 
elevated temperature on bolt performance by (1) monitoring load changes during the test, (2) 
evaluations of the bolt/grout/rock interface following heating and cooling, and (3) pull-testing 
selected bolts to failure after heating and subsequent cooling. Each rock bolt included one 
vibrating wire load cell (load washer) that was installed between cover plates and adjustable 
angled washers. This entire assembly was bolted to the Williams bolt on the cold side of the 
insulation. 
Four of the rock bolts were installed on the heated side of the Thermal-Mechanical Alcove below 
the level of the heater. Another four rock bolts were installed on the opposite cold side of the 
Thermal-Mechanical Alcove. The rock bolts and load cells were installed during July 1996. 
Initial readings were taken using a hand-held Geokon readout box, prior to connection to the 
DCS. The load cells each contain three strain gages, and the total load acting on the cell is 
calculated by averaging the measurements from all three. The locations of the rock bolts 
instrumented with rock bolt load cells (RBLCs) are shown in Figures 6.2.3.1-1 and 6.2.3.1-2. 
Four RBLCs were installed on the heated side of the west face of the SHT block (RB-1, RB-2, 
RB-3, and RB-4), and four were installed on the opposite ambient side of the Thermal-
Mechanical Alcove (RB-5, RB-6, RB-7, and RB-8). 
Detailed discussion of the SHT rock bolt load testing is presented in Section 9.3 of Single Heater 
Test Final Report (CRWMS M&O 1999 (129261]). SHT rock bolt load data may be found in 
Input DTNs: SN0401F3511695.012 [DIRS 169262] and SN0401F3511695.013 [DIRS 169263]. 
6.2.3.3.1 Results: Rock Bolt Load 
The data are presented as load (lb) versus time from the start of heating, in tabular form in 
Table 6.2.3.3-1. The data show a general decline in load measured in all the RBLCs through the 
end of heating. Three of the four heated rock bolts (RB-2, RB-3, and RB-4) show an increase in 
load after the heater is turned off, and RB-1 exhibits a stabilization of the previously observed 
load decrease. The increase is only up to 100 lb, or 0.7 percent of the load measured in the bolt. 
The load increase is likely caused by thermal-contraction effects in the bolt itself, which likely 
has a higher thermal expansion/contraction coefficient than the rock mass surrounding it. The 
ambient rock bolts continue to experience a decrease in load throughout the reporting period. 
Loads were measured in rock bolts installed on both the heated side of the SHT block and on the 
opposite ambient rib of the Thermal-Mechanical Alcove. The rock bolts were installed to 
evaluate the longer-term effects of elevated temperature on this type of rock anchorage. Results 

show that loads are decreasing in all load cells; however, the decrease is greatest in those rock 
bolts on the heated side of the SHT. Alternatively, there could also be some load loss caused by 
creep of the anchorage, which is composed of the steel bolt and mechanical anchor, the 
surrounding grout, and the rock itself. The fact that load decreases were about 1 to 2 percent for 
all rock bolts, except RB-1 and RB-2, which decreased about 7 percent and 4 percent 
respectively, appears to indicate: (a) the influence of anchorage creep on all the bolts and (b) the 
effect of temperature on the creep of the rock bolts, because rock bolts with the highest 
temperatures had the most load decrease. 
6.2.3.3.2 Measurement Uncertainty: Rock Bolt Load 
Measurement uncertainties in SHT rock bolt measurements are similar to many of those 
discussed in Section 6.2.3.1.2. Additional uncertainties include those associated with accuracy 
and precision as tabulated in Table 6.2.3.1-3. 
6.2.3.4 Laboratory ParametersThermal Expansion, Youngs Modulus, Poissons 
Ratio, and Peak Stress 
The SHT includes preheating planning, test design, preheating analyses, preheating 
characterization, test implementation, heating-phase testing, cooling-phase testing, and 
postcooling characterization and instrumentation/equipment evaluations. This section discusses 
the postcooling characterization activities for mechanical processes after the cooling phase of the 
SHT was completed. Specifically, the activity described here is the use of postcooling borehole 
and intact rock sample locations for laboratory determination of thermal-mechanical properties. 
A detailed discussion for all SHT laboratory mechanical parameters is presented in Section 6.2 
of Single Heater Test Final Report (CRWMS M&O 1999 [DIRS 129261]) and Section 4 of 
Characterization of the ESF Thermal Test Area (CRWMS M&O 1996 [DIRS 101428]). SHT 
preheating and postcooling laboratory parameter data may be found in Input DTNs: 
SNL22080196001.002 [DIRS 158306] and SNL22080196001.003 [DIRS 119042]. 
6.2.3.4.1 Results: Laboratory ParametersThermal Expansion, Youngs Modulus, 
Poissons Ratio, Peak Stress and Axial Strain at Peak Stress 
The mean coefficients of thermal expansion (MCTEs) are summarized in Tables 6.2.3.4-1 and 
6.2.3.4-2 for heating and cooling, respectively, during the first thermal cycle. Data are categorized 
as being either from within or outside the maximum extent of the 100C isotherm, and either 
perpendicular or parallel to the heater. The mean MCTEs and standard deviations about each 
mean are given at each temperature for each category. Summary data for the entire test suite are 
given with standard deviations and 95 percent confidence limits at the bottom of each table. All 
specimens show steep increases in MCTE beginning at approximately 150C to 200C and 
continuing until approximately 300C. The steepest increases are between 250C and 300C. 
This steep increase is attributed to phase changes in the silica mineral phases. The MCTEs 
calculated over the temperature interval of 300C to 325C decrease as the phase change is 
completed. The specimens with lower MCTEs are primarily from within the approximate 
maximum extent of the 100C isotherm. The SHT preheating characterization data and data 
from within the approximate maximum extent of the 100C isotherm continue to track one 
another and fall below the remaining data sets. 

Fourteen specimens were tested in unconfined compression and the experimental data are 
summarized in Table 6.2.3.4-3. Mean values, standard deviations, and 95 percent confidence 
limits are given for Youngs modulus, Poissons ratio, peak stress, and axial strain at peak stress. 
Youngs moduli ranged from 20.1 GPa to 37.0 GPa, with a mean value of 31.6 GPa. The 
standard deviation was 4.8 GPa, and the 95 percent confidence limit was 2.5 GPa. Poissons 
ratio ranged from 0.12 to 0.39 with a mean value of 0.20. The standard deviation was 0.07, and 
the 95 percent confidence limit was 0.03. Peak stress ranged from 34 MPa to 246 MPa, with a 
mean value of 134 MPa. The standard deviation was 70 MPa, and the 95 percent confidence 
limit was 37 MPa. Axial strain at peak stress ranged from 0.11 percent to 0.89 percent, with a 
mean value of 0.47 percent. The standard deviation was 0.25 percent, and the 95 percent 
confidence limit was 0.13 percent. 
6.2.3.4.2 Measurement Uncertainty: Laboratory ParametersThermal Expansion, 
Youngs Modulus, Poissons Ratio, and Peak Stress 
The uncertainty in the unconfined compressive testing of intact rock samples, which results in 
the measurement of Youngs modulus, Poissons ratio, and peak stress, includes the accuracy of 
the load cell, the accuracy of the LVDT, specimen alignment, changes in the specimen cross 
section area during the test, specimen variation, and anisotropy of the rock. Among these 
factors, the greatest uncertainty is with the specimen variation. The heterogeneity in the rock 
mass will have significant effects on its compressive strength and moduli. Many of these 
uncertainties also apply to thermal expansion of intact samples. In addition, temperature control 
contributes to uncertainties in thermal expansion. Additional discussion of the uncertainties 
associated with these measurements can be found in Section 9 and 11.2 of Single Heater Test 
Final Report (CRWMS M&O 1999 (129261]). 
6.2.3.4.3 Measurement Uncertainty: Rock Mass Thermal Expansion 
Measurement uncertainty of the rock mass thermal expansion is dependent on the uncertainties 
of the original field measurements (MPBX displacements and temperatures), and in the 
discretization error associated with the available lengths over which to measure these values 
(primarily deviation from a constant temperature). 
6.2.4 SHT Chemical Measurements 
This section presents the results from geochemical studies of water samples collected during the 
SHT and mineralogical studies of preheating borehole cores and postcooling overcores from the 
test block. The study of the geochemical composition of the water collected during the test 
provides insight into thermally driven geochemical processes. The mineralogical studies present 
information on the rock, providing a necessary starting point for the study of rock and water 
evolution with temperature and time. The aqueous geochemistry is discussed in Section 6.2.4.1. 
Mineralogical and petrologic studies are covered in Section 6.2.4.2. 
A detailed description of SHT chemical measurements is documented in Sections 6.4 and 10 of 
Single Heater Test Final Report (CRWMS M&O 1999 [DIRS 129261]). SHT chemical 
measurement Input DTNs and Summary DTNs are listed in Tables 4-2 and 6.2-1, respectively. 

6.2.4.1 Aqueous Chemistry 
Samples of water were collected from borehole 16-4 (see Figure 6.2-2) on four occasions during 
the course of the SHT and were distributed for analysis. Water collected in the field was tested 
for pH, filtered to 0.45 m, and splits for analyses were prepared for distribution. Each field 
sample was also given a unique identification number, which was tracked by the Sample 
Management Facility (SMF). Samples were designated for analysis of metals, anions, and stable 
isotopes. The metals samples were stabilized by acidifying the water with HNO3 and stored in 
polyethylene bottles. The anion samples were also stored in polyethylene, and the stable isotope 
samples were stored in glass. All bottles were filled to minimize headspace and tightly capped to 
reduce evaporation. The samples were maintained under refrigeration at the SMF until they 
were shipped. 
The cation analyses were performed at Lawrence Livermore National Laboratory (LLNL) by 
Inductively Coupled Plasma and Atomic Emission Spectroscopy (ICP/AES). Total dissolved 
metals of Al, B, Ca, Fe, Mg, Li, Na, K, S, Si, and Sr were measured. Anions were measured by 
 2
Ion Chromatography (IC); anions measured included F, Cl, Br, NO2 , NO3, PO43, and SO4 . 
Bicarbonate (HCO3 
-) was computed by charge balance, using the measured pH to indicate actual 
hydrogen activity at the time of sampling. The analytical aqueous chemistry results are in the 
TDMS under DTNs: LL970101104244.027 [DIRS 158309], LL970409604244.030 [DIRS 
111481], LL970703904244.034 [DIRS 111482], LL971006604244.046 [DIRS 148611] These 
represent quarterly results for the four sampling activities. DTN: GS951108312271.006 [DIRS 
169244] also contains data related to aqueous geochemistry. Note that these five DTNs are 
unqualified and should only be used for corroborative purposes. 
6.2.4.1.1 Field Sampling 
Among the boreholes instrumented with various monitoring systems shown in Figure 6.2-2, 
boreholes 20 (ESF-TMA-CHE-1) and 21 (ESF-TMA-CHE-2) were designed to collect aqueous 
chemical data from specific locations in the thermal test block. One borehole was instrumented 
with a suite of solid-state chemical sensors for in situ, real-time geochemical assessment of the 
contacting waters. Early in the SHT, however, the sensors performance was inconsistent with 
the manufacturers specifications. Subsequent laboratory testing demonstrated significant 
compositional dependencies; consequently, the sensors were determined unsuitable for 
monitoring the water chemistry. The second borehole was fitted with absorbent pads that could 
be collected in the field and returned to the lab for analytical testing. Several pads were 
removed, examined, and found to be relatively dry. Nevertheless, an extraction process was 
developed in which pads were soaked in de-ionized water (dilution). The process was followed 
by sampling and filtering the solution. A clean-pad blank was also run to provide baseline 
corrections (per gram weight of fabric). The resulting solution chemistries were determined to 
be very dilute, with a high uncertainty arising from scatter in the background contributions as 
well as imprecise weight corrections. 
Borehole 16 (ESF-TMA-NEU-2), which was drilled and instrumented for hydrology studies (See 
Sections 6.2.2.3 and 6.2.2.4), proved to be important to collecting SHT water for analysis. The 
borehole was instrumented with a string of high-temperature, inflatable packers, which isolated 
four open zones. The inflated packers, which straddled fractured regions, also provided a means 

of containing mobilized water entering an open zone. One zone in particular, zone 4 of borehole 
16 (at a depth of 3 m), yielded a significant and steady supply of water for chemical analyses 
starting in November 1996 and continuing throughout the heating phase of the SHT. 
6.2.4.1.2 Results: Aqueous Chemistry 
The results of chemical analyses for the four suites of SHT water are presented in Table 
6.2.4.1-1. For comparative purposes, data from several relevant water sources (other than the 
SHT) have been included, and their respective sources are cited among the footnotes. The 
reported temperatures are those downloaded from the Data Acquisition System at time of 
sampling. The pH measurement is a field value taken at the time of sample collection. The one 
exception is for the initial sample (collected November 25, 1996); the pH value reported was for 
a sample measured about 30 days after collection. 
Table 6.2.4.1-1 clearly shows that the SHT water is more dilute than other in situ waters from the 
general vicinity. Trends in the SHT water indicate Na and Si are the dominant metals, followed 
by Ca, with other cations and anions in considerably lower abundances. The same general 
patterns are observed in both saturated and unsaturated zone waters sampled from the region. 
Over time, the concentrations of Na, Ca, Mg, and Sr are seen to systematically decrease, whereas 
all other elements exhibit nonsystematic variation. SHT waters are slightly acidic with pH 
values between 6.2 and 6.9. These measured pH readings may have indicated elevated CO2 
partial pressures in equilibrium with the water in the packed-off interval. 
6.2.4.1.3 Measurement Uncertainty: Aqueous Chemistry 
Input DTNs LL970101104244.027 [DIRS 158309], LL970409604244.030 [DIRS 111481], 
LL970703904244.034 [DIRS 111482], LL971006604244.046 [DIRS 148611] and 
GS951108312271.006 [DIRS 169244] are unqualified due to a lack of data traceability. These 
data should only be used for corroborative purposes. 
6.2.4.2 Mineralogic and Petrologic Analyses 
The SHT served as a prototype test for the larger DST. Techniques were developed to produce a 
quantitative inventory of natural minerals in the fracture network of the test block. Continuous 
characterization over meter-scale distances was essential to provide estimated mineral 
abundances of general validity as input to numerical geochemical models of thermal tests. 
Collection of data on this scale also would document the existence of variability in the mineral 
content of the fracture network. Data for natural-mineral abundances were obtained from cores 
drilled prior to heating. Data on stellerite abundance (fracture-surface coverage) in fractures 
have been submitted to the TDMS under Input DTN LA0009SL831151.001 [DIRS 153485]. 
The ability to identify and document test-related mineralogic reactions was a key to assessing the 
reliability of computational models of coupled thermal-hydrologic-chemical processes. Two 
types of postcooling (following heating and cooling) sampling were employed: overcoring of 
preheating boreholes and drilling of new continuously cored boreholes. Both coring and 
overcoring were performed after the field test was completed. Identification of preheating and 
postcooling minerals was verified by X-ray diffraction analysis (XRD), scanning-electron 
microscopy (SEM), and energy-dispersive X-ray analysis (EDX). A summary of preheating 

fracture minerals and postcooling products can be found in the TDMS under Input DTN 
LA0009SL831151.001 [DIRS 153485]. 
6.2.4.2.1 Results: Mineralogy of the Preheating Natural Fracture System 
Time constraints precluded completion of an inventory for all fracture-coating minerals. Instead, 
a survey of stellerite abundance in macroscopically visible fractures was undertaken for 
preheating drill core MPBX-1 (borehole 2 as shown in Figure 6.2-2). Stellerite, a zeolite, was 
chosen because it can be identified with a high level of confidence based on stereomicroscopic 
examination. Visual-recognition criteria of crystal morphology, luster, and hardness were 
verified by XRD of typical deposits. Because stellerite is a major fracture-coating mineral in the 
SHT block, quantification of its abundance was especially useful input for geochemical 
modeling. 
The survey was conducted piece-by-piece for the MPBX-1 core. For each fracture, the percent 
of fracture surface covered by stellerite was estimated by comparison with standard abundance 
diagrams like those of Compton (1962 [DIRS 101588], pp. 332 to 333). The observed or 
calculated coverage of a fracture by stellerite is defined for this estimation as an attribute shared 
by the opposing surfaces of an intact fracture. For partly sealed fractures, the estimated percent 
stellerite coverage of nonsealed fracture area was treated as an attribute of the entire fracture. 
Matching fracture faces at the ends of adjacent core pieces count as a single fracture, with 
percent zeolite coverage equal to the higher of the values estimated for each face. The results of 
this inventory are presented in Table 6.2.4.2-1. 
Additional natural-fracture minerals, as identified by XRD in two samples from drill core ESF-
TMA-H-1 (borehole 1 as shown in Figure 6.2-2), include smectite, feldspar, and quartz (Tables 
6.2.4.2-2 and 6.2.4.2-3). 
6.2.4.2.2 Results: Evidence of Mineral Deposition 
Alteration products of the SHT resulting from fluid/rock interaction have been identified in the 
overcores of borehole 16 (ESF-TMA-PTC-NEU-2) and borehole 2 (ESF-TMA-PTC-MPBX-1). 
The new mineral deposits are of three general varieties, described here from the occurrences in 
the ESF-TMA-PTC-NEU-2 borehole. This borehole was inclined upward from the surface of 
the test block, so that the bottom of the borehole was above the heater. Water that entered the 
borehole from fractures near the bottom flowed downslope along the wellbore. Small white 
mounds and patches, =1 mm across, of gypsum  calcite  opal-A are present on natural fracture 
surfaces and preheating borehole 16 surfaces near the bottom of the ESF-TMA-PTC-NEU-2 
overcore. Some of the mounds are concentrated along the traces of very tight fractures 
intersecting the borehole or fracture surfaces on which the mounds were deposited. Glassy scale 
deposits, mostly silica, are especially abundant on the bottom of the preheating borehole 2. 
Some scale deposits take the form of dried drip marks on the sides of the borehole. 
Gypsum 
The identification of gypsum is based on XRD of white deposits from preheating borehole 
surface and adjoining fractures in the 15.516.5 ft (4.725.03 m) interval of ESF-TMA-PTC-

NEU-2. Only one core fragment contained enough material to collect about a milligram for 
XRD analysis. Smaller deposits on other core pieces are identified as gypsum on the basis of 
similar crystal morphology observed in SEM images and the Ca+S peaks in the energy-
dispersive X-ray spectrum. 
Opal-A and Other Silica 
Opal-A in the white deposits from PTC-NEU-2 (preheating overcore borehole 16) was identified 
by a combination of XRD and SEM-EDX. A broad peak, characteristic of structurally 
amorphous material, was observed in the XRD pattern from the white deposits. SEM-EDX 
examination of the deposits revealed the presence of nearly pure silica (Si peak on the EDX 
spectrum) in portions of the deposits with no discernible crystal form. 
Some opal-rich areas of the white mounds contain masses of minute silica tubules projecting up 
to about 5 m from the surface of the deposit. A few tubules are straight, but most have variably 
tortuous shapes. Outside diameters of the tubules range from about 0.3 to 0.7 m, whereas 
inside diameters vary from less than 0.1 to about 0.3 m. 
Deposits of glassy silica scale =0.2 mm thick were observed on the preheating wellbore surface 
of ESF-TMA-PTC-MPBX-1, a horizontal borehole close to the heater borehole. There is a 2 to 3 
cm wide zone of silica deposition along what is inferred to be the bottom of the wellbore surface. 
In addition, silica scale deposits define elongated drip marks on the inferred lower half of the 
wellbore surface. The silica scale generally consists of two texturally distinct components. At 
the base of the deposits are aggregates of platy silica particles about 1 to 5 m across, silica rods 
1 to 2 m across and up to about 15 m long, and a few round particles 1 to 2 m across. 
Overlying the silica particles are cracked silica sheets about 2 m thick. The siliceous 
composition of the scale was documented by EDX. 
Sampling the silica scale for mineralogic analysis was complicated by the small quantities of 
material and the difficulty in removing the scale from the wellbore surface while minimizing the 
incorporation of bedrock. Some of the thickest scale deposits were laid down on top of 0.1 mm 
thick fine particulate layers, to which the scale adheres. The milligram sample collected for 
XRD was estimated by visual examination to contain about 20 percent silica scale. Because of 
the high impurity content, identification of the scale mineralogy on the basis of XRD is very 
uncertain. Of the silica phases identified in the sample (cristobalite, quartz, tridymite, and 
opal-A), the opal-A is most likely to be solely a test product. The ESF-TMA-MPBX-1 borehole 
(borehole 2), where this material was deposited, was heated to more than 150C during the test. 
In comparison, the maximum temperature was slightly less than 80C (DTN: 
SN0401F3511695.012 [DIRS 169262]) in borehole 16 where opal-A without platy morphology 
was deposited. 
Calcite 
Calcite has been documented by XRD as a constituent of the white mounds deposited on natural 
fracture surfaces and on the preheating borehole surface of overcore ESF-TMA-PTC-NEU-2 
(borehole 16) in the 15.517.0 ft (4.725.18 m) interval. The mineral is also part of the thin, 
nearly invisible coatings present on the preheating wellbore surface in the same interval. A thin, 

brown particulate deposit on the bottom of the wellbore also contains calcite. In overcore ESF-
TMA-PTC-MPBX-1, calcite occurs with silica scale, fine particulate deposits, or other deposits 
on the preheating wellbore. Discrete calcite crystals have not been documented by SEM-EDX 
studies of these deposits, due perhaps to spectroscopic interference from other calcium-rich 
phases such as gypsum and stellerite, or to overgrowths of other minerals. 
6.2.4.2.3 Measurement Uncertainty: Mineralogic and Petrologic Analyses 
A formal error analysis was not performed for the exploratory research technique employed to 
obtain the stellerite abundance in fractures presented in Table 6.2.4.2-1. The principal sources of 
error lie in estimating the percent zeolite coverage of a fracture and in estimating the portion of a 
fracture sealed by vapor-phase minerals. The loss of small amounts of core on account of 
nonrecovery or sample removal is an additional source of uncertainty not related to errors of 
measurement. 
6.2.5 SHT Miscellaneous Measurements and Observations 
This section discusses additional SHT measurements not covered in the prior four SHT sections. 
Specifically, fracture mapping, infrared imaging, and borehole video logging are discussed. 
Detailed discussion on these measurements is documented in the report entitled Characterization 
of the ESF Thermal Test Area (CRWMS M&O 1996 [DIRS 101428]). SHT miscellaneous 
measurement Input DTNs and associated Summary DTNs are listed in Tables 4-2 and 6.2-1, 
respectively. 
6.2.5.1 Fracture Mapping 
The objective of geologic mapping in the SHT area was to determine the vertical and horizontal 
variability of fracture networks, to characterize any faults and fault zones, to map the 
lithostratigraphic features of geologic subunits and the abundance and character of lithophysal 
zones, and to assist in selection of test locations. Two data collection techniques were used: full-
periphery mapping and detailed line surveys. 
Mapping in the Thermal Test Alcove was carried out by United States Geological Survey 
(USGS) and United States Bureau of Reclamation (USBR). It was done essentially to the same 
standards used in the ESF main drift, using Technical Procedure NWM-USGS-G-32, R0. From 
these procedures, the USGS/USBR used full-periphery mapping techniques and detailed line 
surveys to characterize the rock and fractures in the alcove. 
Geologic mapping included recording lithostratigraphic and structural features on 1:125 scale 
drawings. Maps were developed in the full-periphery style, in which the tunnel walls were 
unrolled to produce a flat map of the tunnel periphery. Discontinuities and lithostratigraphic 
contacts with trace lengths longer than 1 m were recorded on the field sheets. The orientation of 
geologic features was determined using a goniometer for strike azimuth and a Brunton compass 
for dip values. Discontinuity orientations were recorded using the right-hand rule, where dip 
direction is 90 degrees to the right (clockwise) of strike. Traces of lithostratigraphic and 
structural features were sketched onto the geologic drawings and later digitized with AutoCAD. 

Detailed discussion, including full periphery geotechnical map for Alcove 5, is presented in 
Section 7 of the report entitled Characterization of the ESF Thermal Test Area (CRWMS M&O 
1996 [DIRS 101428]). 
6.2.5.1.1 Results: Fracture Mapping 
Thermal Test Alcove 5 was excavated at Station 28+27, near the base of the ESF north ramp and 
at the beginning of the main drift. It was excavated in an easterly direction off the north-south 
trending main drift and at a downward angle of approximately 10 to 15 degrees. 
The lithology of the unit consists of densely welded, devitrified tuff of rhyolitic composition, 
containing vapor-phase minerals and about 1 percent phenochrysts, chiefly feldspar and biotite. 
Lithophysae are rare (less than 1 percent), and range in size up to 80 mm, with vapor-phase 
minerals and very light gray rims and spots. Short (10 to 20 cm), discontinuous, subhorizontal 
vapor phase partings are present throughout the unit, while the more developed subhorizontal 
partings form bedding plane features on the order of meters apart. 
Fractures in this unit are generally moderately to widely spaced (30 cm to 2 m), slightly to 
moderately continuous (1 m to 10 m), and slightly open to tight. A series of low angle shears 
strikes through the area of the alcove in an east-west direction and dips to the north. These 
shears form local subhorizontal breccia zones or wedges where they intercept the more 
predominant vapor phase partings and bedding planes. 
Results of detailed line surveys indicated three prominent joint sets in the Thermal Test Facility. 
These joints sets correspond to similar sets observed in the Tptpmn in the main drift. Joint Set 1 
(JS1) and Joint Set 2 (JS2) are both near vertical, relatively long (3 to 4 m in length), had 
relatively smooth surfaces (Brown 1981 [DIRS 102003], pp. JRC 4 to JRC 6), and relatively 
small variations in amplitudes normal to the joint surfaces (0.05 to 0.2 m). Joint apertures are 
typically 1 mm to 2 mm, open, and with little or no infilling. Joint Set 1 has a dip direction of 
approximately 40 and a dip angle of 70 to 85. Joint Set 2 has a dip direction of approximately 
130 and a dip angle of 70 to 90. Joint Set 1 and 2 are difficult to observe because their 
orientation was subparallel to the walls. 
Joint Set 3 (JS3) is a relatively low-angle vapor-phase parting surface, with a dip direction of 
approximately 300 and a dip angle of 15 to 40. Compared to Joint Set 1 and Joint Set 2, the 
parting surfaces of Joint Set 3 are generally shorter (1.0 m to 1.3 m), have more irregular 
surfaces (Brown 1981 [DIRS 102003], pp. JRC 10 to JRC 16), and have larger variations in 
amplitudes normal to the joint surfaces (0.2 m to 0.3 m). The apertures for Joint Set 3 are 
generally wider, 3 mm to 5 mm, and are filled with vapor-phase calcite and quartz and 
occasionally Fe-Mn oxides. The joint density is approximately seven fractures per cubic meter. 
6.2.5.1.2 
Measurement Uncertainty: Fracture Mapping 
Uncertainty associated with SHT fracture mapping is similar to that discussed in 
Section 6.1.4.1.2. 

6.2.5.2 
Infrared Imaging 
The objective of infrared imaging (IR) of rock surfaces prior to the onset of heating was to 
establish the initial conditions on the drift walls around the SHT region, specifically the 
temperature distributions at the outlets of potential pathways for fluids. During the heating 
period, thermally induced flow can change the wall temperature. A set of reconnaissance 
surveys was conducted on April 11 and 12, 1996, after excavation of the drifts around the SHT 
region. Similar images were taken on other walls surrounding the SHT region and on the 
ceilings. Additional surveys were also carried out in June 1996, with essentially uniform 
temperatures on the walls observed. These images were digitized and later compared with the 
images taken at the same location during and following the SHT heating phase. For the end wall 
of the alcove extension, an aluminum grid was installed on the wall so that human body heat 
would not distort the IR images in later surveys. 
Detailed discussion of SHT infrared imaging is presented in Section 9.2 of Characterization of 
the ESF Thermal Test Area (CRWMS M&O 1996 [DIRS 101428]) and Section 8.4 of Single 
Heater Test Final Report (CRWMS M&O 1999 [DIRS 129261]). SHT infrared images and 
accompanying data may be found in Input DTNs LB970700123142.002 [DIRS 158295 and 
LB980120123142.001 [DIRS 158297]. 
6.2.5.2.1 Results: Infrared Imaging 
Wet (cool) surfaces appear in IR images near the invert where some remaining muck is piled 
against the wall. In the corresponding IR images, the muck pile is colder than the wall surface 
above. On the wall, there are slightly cooler areas corresponding to the apparently wet areas. 
Hot spots show up in the IR images of the SHT wall above and below the mid-height between 
the invert and the drift crown. 
The hot spots in the rock could be associated with pathways through the rock masses behind 
the wall. The pneumatic pathways are likely along heterogeneous channels through the fracture 
network and exit at spots. 
6.2.5.2.2 Measurement Uncertainty: Infrared Imaging 
Uncertainty in the infrared measurements includes parallax changes to the images, subjective 
interpretation of temperature differences along the surface of the image, and natural variations 
along a surface. 
6.2.5.3 Borehole Video Logging 
The objective of borehole video logs was to provide descriptive visual information from 
boreholes in the DST block and to supplement other available characterization data. Borehole 
video logs were also used to help select appropriate depths for packer settings for air 
permeability testing. 
The borehole television camera consists of the downhole video camera system, monitor, and 
VCR. The TV/VCR was first configured to record, and then the camera was inserted into the 
borehole. The camera was paused as needed. The videotape was viewed to ensure visibility and 

adequacy. The process was repeated if the video information was inadequate. Any unusable 
entries or videos were identified as inadequate. The following information was recorded in the 
scientific notebook: borehole identifier, date, measuring and test equipment serial numbers if 
applicable, the location of the zero datum point, traceability between the notebook and the video, 
depth-correction measurements if applicable, and the total depth reached. 
6.2.5.3.1 Results: Borehole Video Logging 
Borehole video logs provide much visual information regarding fractures, including aperture 
size, fracture frequency, and fracture orientation. Video logs, which are documented by Mitchell 
(1996 [DIRS 159518]), include visual descriptions of the boreholes in the SHT region. 
6.2.5.3.2 Measurement Uncertainty: Borehole Video Logging 
These observations are inherently subjective, and determination of orientation and location may 
be subjected to multiple interpretations. 

Source: CRWMS M&O 1999 [DIRS 129261]. 
Figure 6.2-1. Schematic Plan View of ESF Thermal Test Facility Including the SHT 

Source: CRWMS M&O 1999 [DIRS 129261]. 
Figure 6.2-2. Schematic SHT Layout of the Instrumentation Boreholes 
TDR-MGR-HS-000002 REV 00 F6.2-2 September 2004 

4500
4000
3500
3000
2500
2000
1500
1000
500
0
Power Outage 
Heating Phase 
Cooling Phase 
0 50 100 150 200 250 300 350 400 450 500 
Time (Days) 
DTN: MO0208RESTRSHT.002 [DIRS 170582]. 
Figure 6.2.1.1-1. SHT Power History 
100
90
80
70
60
50
40
30
20
10
RTD-15-1 
RTD-15-5 
RTD-15-10 
RTD-15-15 
RTD-15-21 
RTD-15-25 
RTD-15-27 
0 
0 50 100 150 200 250 300 350 400 
Time (Days) 
DTN: MO0208RESTRSHT.002 [DIRS 170582]. 
Figure 6.2.1.2-1. Temperature History for SHT Borehole 15 at Select Locations 
Temperature (C) 

Temperature (C) 
100 
90 
80 
70 
60 
50 
40 
30 
20 
10 
0 
01234567 
Distance (m) 
28 Days 
56 Days 
98 Days 
196 Days 
275 Days 
294 Days 
350 Days 
406 Days 
462 Days 
DTN: MO0208RESTRSHT.002 [DIRS 170582]. 
Figure 6.2.1.2-2. Temperature Profile for SHT Borehole 15 at Select Times 
Temperature (C) 
250 
200 
150 
100 
50 
0 
0 50 100 150 200 250 300 350 400 
Time (Days) 
TC-1A-1 
TC-1A-2 
TC-1A-3 
TC-1A-4 
TC-1A-5 
TC-1A-6 
TC-1A-7 
TC-1A-8 
TC-1A-9 
TC-1A-10 
DTN: MO0208RESTRSHT.002 [DIRS 170582]. 
Figure 6.2.1.2-3. Temperature History for SHT Borehole 8 at Select Locations 
TDR-MGR-HS-000002 REV 00 F6.2-4 September 2004 

Temperature (oC) 
250 
200 
150 
100 
50 
0 
28 Days 
56 Days 
98 Days 
196 Days 
275 Days 
294 Days 
350 Days 
406 Days 
462 Days 
2 3 4 5 6 7 8 
Y (m) 
DTN: MO0208RESTRSHT.002 [DIRS 170582]. 
Figure 6.2.1.2-4. Temperature Profile for SHT Borehole 8 at Select Times 

DTN: LL02080123142.029 [DIRS 170581]. 
Figure 6.2.2.1-1. Interpretation of ERT Moisture Data during the SHT Heating Phase

DTN: LL02080123142.029 [DIRS 170581]. 
Figure 6.2.2.1-2. Interpretation of ERT Moisture Data during the SHT Cooling Phase

TIME (NS) 
100100 
50 50 
Travel time 
pick 
Source: CRWMS M&O 1999 [DIRS 129261]. 
NOTE: Shown are gathers for receivers at 2.37 and 2.61 meters down Borehole 15. 
Figure 6.2.2.2-1. Two Typical SHT GPR Receiver Gathers for the 15-17 Borehole Pair on 
January 16, 1997 

DTN: LB0208GPRSHTCP.001 [DIRS 170578]. 
NOTE: (A) Survey taken January 15, 1997; (B) survey taken March 12, 1997; (C) survey taken May 29, 1997; and 
(D) survey taken January 7, 1998. 
Figure 6.2.2.2-2. SHT GPR Velocity Tomograms for Borehole Pair 15-17 

DTN: LB0208GPRSHTCP.001 [DIRS 170578]. 
NOTE: Each tomogram is a difference from the baseline tomogram after (A) 5 months, (B) 7 months, (C) 9 months, 
and (D) 17 months. 
Figure 6.2.2.2-3. SHT GPR Velocity Difference Tomograms for Borehole Pair 15-17 

Difference Fraction Volume Water Content 
DTN: LL980106904244.051 [DIRS 118963]. 
Figure 6.2.2.3-1. Smoothed Difference Fraction Volume Water Content Measured in SHT Borehole 15
Using Neutron Logging (April 30 and May 21, 1997) 

Difference Fraction Volume Water Content 
DTN: LL980106904244.051 [DIRS 118963]. 
Figure 6.2.2.3-2. Smoothed Difference Fraction Volume Water Content Measured in SHT Borehole 15 
Using Neutron Logging (November 24 and December 17, 1997) 

TDR-MGR-HS-000002 REV 00 F6.2-13 September 2004 
0.00.51.01.52.02.55/15/968/23/9612/1/963/11/976/19/979/27/971/5/98k/kpre-heating (m2)
Inj Behind 16-4Inj Behind 18-4Inj Between 16-2, 16-4Inj Between 16-1, 16-3Inj Between 18-1, 18-3Heating Terminated: May 28, 1997 
DTN: LB0208AIRKSHTC.001 [DIRS 170576]. 
Figure 6.2.2.4-1. SHT Permeability Changes for Boreholes 16 and 18 as a Ratio of Transient 
Permeabilities to the Baseline Permeability Estimate 
Temperature Profiles for Boreholes 16 & 18202530354045505508/01/199610/02/199612/03/199602/03/199704/06/199706/07/199708/08/199710/09/199712/10/1997Temperature (oC)
TMA-TEMP-18-4TMA-TEMP-18-3TMA-TEMP-18-2TMA-TEMP-18-1TMA-TEMP-16-3TMA-TEMP-16-2TMA-TEMP-16-1Heating TerminatedMay 28, 1997Heating InitiatedAugust 26, 1996 
DTN: LB980901123142.002 [DIRS 119009]. 
Figure 6.2.2.4-2. Passive Monitoring Temperature Data in SHT Boreholes 16 and 18 

TDR-MGR-HS-000002 REV 00 F6.2-14 September 2004 
SHT Relative Humidity Measurements848688909294969810010208/01/199610/02/199612/03/199602/03/199704/06/199706/07/199708/08/199710/09/199712/10/1997Relative Humidity (%)
TMA-HUM-18-4TMA-HUM-18-3TMA-HUM-18-2TMA-HUM-18-1TMA-HUM-16-4TMA-HUM-16-3TMA-HUM-16-2TMA-HUM-16-1 
DTN: LB980901123142.002 [DIRS 119009]. 
Figure 6.2.2.4-3. Passive Monitoring Relative Humidity Data in SHT Boreholes 16 and 18 
SHT Boreholes #16 & #18-101234508/01/199610/02/199612/03/199602/03/199704/06/199706/07/199708/08/199710/09/199712/10/1997Pressure (kPa gauge)
TMA-PRES-18-4TMA-PRES-18-3TMA-PRES-18-2TMA-PRES-18-1TMA-PRES-16-4TMA-PRES-16-3TMA-PRES-16-2TMA-PRES-16-1 
DTN: LB980901123142.002 [DIRS 119009]. 
Figure 6.2.2.4-4. Passive Monitoring Pressure Data in SHT Boreholes 16 and 18 

0 
50 
) 
100 
150 
200 
250 
300 
350 
400 
wet @ 25.1C dry @ 25.1C 
Matric Potential (- MPa
0 20 40 60 80 100 
Average Saturation (%) 
DTN: LL020506123142.021 [DIRS 169256]. 
NOTE: Lines connect the points and do not represent curve fits. The point at 100-percent saturation is inferred. 
Figure 6.2.2.5-1. Average Moisture Retention Curves for 11 SHT Samples at 25.1C 

Source: CRWMS M&O 1999 [DIRS 129261]. 
Figure 6.2.3.1-1. Plan View Showing Locations of the SHT Mechanical Boreholes 
Source: CRWMS M&O 1999 [DIRS 129261]. 
Figure 6.2.3.1-2. Cross Section Showing Locations of the SHT Mechanical Boreholes

2.5 
Displacement (mm) 
2.0 
1.5 
1.0 
0.5 
0.0 
TMA-BX-3-1 TMA-BX-3-2 
TMA-BX-3-3 TMA-BX-3-4 
TMA-BX-3-5 TMA-BX-3-6 
0 100 200 300 400 500
Days (Time)
DTNs: SN0401F3511695.012 [DIRS 169262]; DTN SN0401F3511695.013 [DIRS 169263]. 
Figure 6.2.3.1-3. Displacement History for SHT MPBX-3 Borehole 

INTENTIONALLY LEFT BLANK 

Table 6.2-1. DTNs for the Single Heater Test 
Input DTN [DIRS] 
Input DTN 
Description 
Input DTN 
Text 
Location Summary DTN 
Summary DTN 
Description 
LA0002FH6001WP.001a [DIRS 
158278] 
Data Collection System Data 6.2 Unchanged DTN Unchanged DTN 
SN0401F3511695.012 [DIRS Thermal and Thermal-6.2.1.1 MO0208RESTRSHT.002 Power and 
169262] mechanical Data [DIRS 170582] Temperature Data 
SN0401F3511695.013 [DIRS Thermal and Thermal-6.2.1.2 
169263] mechanical Data 
SNF35110695001.001 [DIRS XYZ Coordinates of Boreholes 6.2 
158315] and Sensors 
LL970805504244.043 [DIRS XYZ Coordinates of Boreholes 6.2 
158313] and Sensors 
SNL22080196001.001 [DIRS Thermal Conductivity 6.2.1.3 Unchanged DTN Unchanged DTN 
109722] 
LL970101004244.026 [DIRS Electrical Resistance 6.2.2.1 LL020801823142.029 ERT Tomograms 
158281] Tomography [DIRS 170581] 
LL970505404244.031 [DIRS Electrical Resistance 6.2.2.1 
148609] Tomography 
LL971002904244.044 [DIRS Electrical Resistance 6.2.2.1 
158286] Tomography 
LL980105204244.049 [DIRS Electrical Resistance 6.2.2.1 
148610] Tomography 
LB980901123142.003 [DIRS 
119016] 
Ground Penetrating Radar 
Data 
6.2.2.2 LB0208GPRSHTCP.001 
[DIRS 170578] 
GPR Velocity 
Tomograms 
LL980106904244.051 [DIRS Neutron Logging 6.2.2.3 Unchanged DTN Unchanged DTN 
118963] 
LB970100123142.001 [DIRS Air Injections in Boreholes 16 6.2.2.4 Unchanged DTN Unchanged DTN 
158287] and 18 
LB960500834244.001 [DIRS Preheating Air Injection 6.2.2.4 Unchanged DTN Unchanged DTN 
105587] 
LB980120123142.008 [DIRS Air Injections in Boreholes 16 6.2.2.4 LB0208AIRKSHTC.001 Permeability Data 
158280] and 18, Part 1 of 4 [DIRS 170576] (Boreholes 16 and 
18) 
LB970500123142.001 [DIRS Air Injections in Boreholes 16 6.2.2.4 
158293] and 18, Part 2 of 4 
LB0204SHAIRK3Q.001 [DIRS Air Injections in Boreholes 16 6.2.2.4 
159543] and 18, Part 3 of 4 
LB971000123142.001 [DIRS Air Injections in Boreholes 16 6.2.2.4 
118965] and 18, Part 4 of 4 
LB980901123142.001 [DIRS Postcooling Air Injection and 6.2.2.4 Unchanged DTN Unchanged DTN 
118999] Gas Tracer Testing 

Table 6.2-1. DTNs for Single Heater Test (Continued) 
Input DTN 
Input DTN [DIRS] 
Input DTN 
Description 
Text 
Location Summary DTN 
Summary DTN 
Description 
LB980901123142.002 [DIRS Temperature, Relative 6.2.2.4 Unchanged DTN Unchanged DTN 
119009] Humidity, Gauge Pressure 
(Passive Monitoring) 
LB970500123142.003 [DIRS 
131500] 
Preheating Laboratory 
Saturation, Porosity, Bulk 
Density Gravimetric Water 
Content 
6.2.2.5 Unchanged DTN Unchanged DTN 
LL020506123142.021 [DIRS Preheating Laboratory 6.2.2.5 Unchanged DTN Unchanged DTN 
169256] Porosity, Relative Humidity, 
and Water Saturation 
LB980901123142.006 [DIRS Postcooling Laboratory 6.2.2.5 Unchanged DTN Unchanged DTN 
119029] Saturation, Porosity, Bulk 
Density Gravimetric Water 
Content 
SN0401F3511695.012 [DIRS 
169262] 
Thermal and 
Thermal-mechanical Data 
6.2.3.1 Unchanged DTN Unchanged DTN 
SN0401F3511695.013 [DIRS Thermal and 6.2.3.1 Unchanged DTN Unchanged DTN 
169263] Thermal-mechanical Data 
LL980109904243.015 [DIRS Optical MPBX 6.2.3.1 Unchanged DTN Unchanged DTN 
158299] Displacements 
SNF35110695001.010 [DIRS Rock Mass Deformation 6.2.3.2 Unchanged DTN Unchanged DTN 
158300] Modulus  Borehole 
(Goodman) Jack 
SN0401F3511695.012 [DIRS Thermal and 6.2.3.3 Unchanged DTN Unchanged DTN 
169262] Thermal-mechanical Data 
SN0401F3511695.013 [DIRS Thermal and 6.2.3.3 Unchanged DTN Unchanged DTN 
169263] Thermal-mechanical Data 
SNL22080196001.001 [DIRS Laboratory Thermal 6.2.3.4 Unchanged DTN Unchanged DTN 
109722] Expansion 
SNL22080196001.002 [DIRS 
158306] 
Preheating Laboratory 
Unconfined Compressive 
Strength, Dry Bulk Density, 
Poissons Ratio, Youngs 
Modulus, Saturated Bulk 
6.2.3.4 Unchanged DTN Unchanged DTN 
Density, Seismic Velocity 
SNL22080196001.003 [DIRS 
119042] 
Postcooling Laboratory 
Thermal Conductivity, 
Thermal Expansion, 
Unconfined Compressive 
Strength, Dry Bulk Density, 
Poisson's Ratio, Young's 
Modulus 
6.2.3.4 Unchanged DTN Unchanged DTN 

Table 6.2-1. DTNs for Single Heater Test (Continued) 
Input DTN [DIRS] 
Input DTN 
Description 
Input DTN 
Text 
Location Summary DTN 
Summary DTN 
Description 
LL970101104244.027b [DIRS 
158309] 
Chemical Abundance Data 6.2.4.1 Unchanged DTN Unchanged DTN 
LL970409604244.030b [DIRS 
111481] 
Chemical Abundance Data 6.2.4.1 Unchanged DTN Unchanged DTN 
LL970703904244.034b [DIRS 
111482] 
Chemical Abundance Data 6.2.4.1 Unchanged DTN Unchanged DTN 
LL971006604244.046b [DIRS 
148611] 
Chemical Abundance Data 6.2.4.1 Unchanged DTN Unchanged DTN 
GS951108312271.006b [DIRS 
169244] 
Chemical Abundance Data 6.2.4.1 Unchanged DTN Unchanged DTN 
LA0009SL831151.001 [DIRS Fracture Mineralogy 6.2.4.2 Unchanged DTN Unchanged DTN 
153485] 
LB970700123142.002 [DIRS Infrared Images, Part 3 of 5 6.2.5.2 Unchanged DTN Unchanged DTN 
158295] 
LB980120123142.001 [DIRS Infrared Images, Part 5 of 5 6.2.5.2 Unchanged DTN Unchanged DTN 
158297] 
a 
DTN LA0002FH6001WP.001 [DIRS 158278] provides access via Records Processing Center (RPC) to all thermal 
and mechanical data collected in SHT Data Collection System (original/electrical and converted/engineering units). 
This unqualified DTN also provides access (RPC) to pertinent supporting material such as scientific notebooks and 
calibration relationships. These data should only be used for corroborative purposes. 
b 
These data are unqualified and should only be used for corroborative purposes. 

INTENTIONALLY LEFT BLANK 

Table 6.2-2. SHT Borehole Information 
Types and No. of Sensors 
Borehole Borehole 
Collar Coordinates 
(meters) 
Bottom 
Coordinates 
(meters) 
Orientation 
Degree 
Diameter 
(cm) 
Length 
(m) 
Volume 
(m3) 
Thermo-
Couples RTD Thermistors 
Load Call 
(Average) 
Anchor 
in 
MPBX 
Type/Wire 
Extensometer 
Humidity 
Sensor 
Pressure 
Transducer 
Electrode 
Sensor 
(ERT) 
Chemistry 
Absorbing 
Pad 
Number Identification Primary Purpose X Y Z X Y Z Comments 
1 ESF-TMA-H-1 Heater 0.01 0.04 -0.03 0.00 6.97 -0.01 0.5 9.60 7.00 0.05 
27 
5 m Long Heater w/ 
Metallic Spring 
Centralizers 
2 ESF-TMA-MPBX-1 MPBX - Rock Mass 
Displacement 
0.18 0.08 0.27 0.14 6.99 0.28 0.5 7.57 7.00 0.03 
9 1 6 
Thermocouple 
Sensors between and 
at Anchors in MPBX 
3 ESF-TMA-MPBX-2 MPBX - Rock Mass 
Displacement 
-0.62 0.23 0.21 -0.62 7.25 0.25 0.5 7.57 7.00 0.03 
13 7 
Thermocouple 
Sensors between and 
at Anchors in MPBX 
4 ESF-TMA-MPBX-3 MPBX - Rock Mass 
Displacement 
0.75 0.10 0.24 0.78 7.00 1.29 0.5 7.57 7.00 0.03 
9 1 6 
Thermocouple 
Sensors between and 
at Anchors in MPBX 
5 ESF-TMA-MPBX-4 MPBX - Rock Mass 
Displacement 
6.43 3.50 -0.11 0.40 3.50 -0.21 0.5 7.57 6.20 0.03 
12 1 6 
Thermocouple 
Sensors between and 
at Anchors in MPBX 
6 ESF-TMA-OMPBX-1 Optical MPBX 1.19 -0.05 0.28 1.21 11.99 0.13 -0.5 7.57 12.00 0.05 Laser Reflection 
MPBX System 
7 ESF-TMA-OMPBX-2 Optical MPBX 6.20 6.49 -0.17 0.30 6.45 0.27 -0.5 7.57 6.20 0.03 Laser Reflection 
MPBX System 
8 ESF-TMA-TC-1 Thermocouple -0.18 0.15 0.28 -0.27 7.85 0.34 0.0 4.80 8.00 0.01 
15 
Thermocouple Probes 
Grouted in Borehole 
9 ESF-TMA-TC-2 Thermocouple 0.63 0.06 0.21 0.62 8.15 0.26 0.0 4.80 8.00 0.01 
15 
Thermocouple Probes 
Grouted in Borehole 
10 ESF-TMA-TC-3 Thermocouple -0.75 0.23 1.26 -0.71 8.05 1.31 0.0 4.80 8.00 0.01 
15 
Thermocouple Probes 
Grouted in Borehole 
11 ESF-TMA-TC-4 Thermocouple -0.02 0.03 0.69 -0.09 5.49 -0.77 0.0 4.80 8.00 0.01 
15 
Thermocouple Probes 
Grouted in Borehole 
12 ESF-TMA-TC-5 Thermocouple 0.00 0.16 0.65 -0.04 6.84 0.68 0.0 4.80 8.00 0.01 
15 
Thermocouple Probes 
Grouted in Borehole 
13 ESF-TMA-TC-6 Thermocouple 6.26 5.49 -0.01 1.87 5.46 -0.04 0.0 4.80 6.20 0.01 
10 
Thermocouple Probes 
Grouted in Borehole 
14 ESF-TMA-TC-7 Thermocouple -6.59 3.46 -0.01 -0.34 3.43 -0.02 0.0 6.00 6.20 0.02 
10 
Thermocouple Probes 
Grouted in Borehole 
15 ESF-TMA-NEU-1 Neutron Probe & Temp 6.10 4.29 0.33 -1.60 4.28 2.74 17.0 7.57 8.50 0.04 
27 
RTDs Grouted 
between Hole and 
Teflon Tube 
16 ESF-TMA-NEU-2 Hydrology 6.10 4.30 0.04 1.14 4.32 0.71 7.5 7.57 5.50 0.02 
4 4 4 
Pressure, RTD & 
Humidity Sensors in 
Packer Systems 
17 ESF-TMA-NEU-3 Neutron Probe & Temp 6.16 4.30 -0.45 -1.78 4.31 -1.47 -7.0 7.57 8.50 0.04 
29 
RTDs Grouted 
Between Borehole 
and Teflon Tube 
18 ESF-TMA-NEU-4 Hydrology 6.17 4.29 -0.22 1.51 4.28 -0.28 -0.5 7.57 5.00 0.02 
4 4 4 
Pressure, RTD & 
Humidity Sensors in 
Packer Systems 
19 ESF-TMA-BJ-1 Borehole Jack -6.55 5.52 -0.14 -0.34 5.51 -0.07 0.5 7.57 6.20 0.03 Open Hole for 
Borehole Jack 
20 ESF-TMA-CHE-1 Chemistry - SEAMIST -6.64 4.91 -0.66 -1.51 4.93 -0.77 -0.5 7.57 5.00 0.02 
50 
SEAMIST System 
with Chemical 
Sensors, 45 Sensors 
Failed 

Table 6.2-2. SHT Borehole Information (Continued) 
Types and No. of Sensors Comments 
Borehole Borehole 
Collar Coordinates 
(meters) 
Bottom 
Coordinates 
(meters) 
Orientation 
Degree 
Diameter 
(cm) 
Length 
(m) 
Volume 
(m3) 
Thermo-
Couples RTD Thermistors 
Load Call 
(Average) 
Anchor 
in MPBX 
Type/Wire 
Extensometer 
Humidity 
Sensor 
Pressure 
Transducer 
Electrode 
Sensor 
(ERT) 
Chemistry 
Absorbing 
Pad 
Number Identification Primary Purpose X Y Z X Y Z 
21 ESF-TMA-CHE-2 Chemistry - SEAMIST -6.59 5.01 -0.01 -1.06 5.10 0.63 7.5 7.57 5.50 0.02 
50 
SEAMIST System with 
Chemical Sensors, 45 
Sensors Failed 
22 ESF-TMA-HYD-1 Neutron Probe & Temp -6.60 4.43 -0.66 -1.56 4.39 -0.74 -0.5 7.57 5.00 0.02 
20 
RTDs Grouted 
between Borehole and 
Teflon Tube 
23 EFS-TMA-HYD-2 Neutron Probe & Temp -6.57 4.43 0.00 -1.31 4.42 0.65 7.5 7.57 5.50 0.02 
19 
RTDs Grouted 
between Borehole and 
Teflon Tube 
24 ESF-TMA-ERT-1 Electrical Resistivity 
Tomography 
-6.56 3.89 0.12 -0.41 3.82 6.28 45.0 7.57 8.70 0.04 
9 
Electrical Resistivity 
Tomography, 
Electrode Sensor on 
1 m Intervals 
25 ESF-TMA-ERT-2 Electrical Resistivity 
Tomography 
-6.57 3.91 -0.13 -0.29 4.07 -6.22 -45.0 7.57 8.70 0.04 
9 
Electrical Resistivity 
Tomography, 
Electrode Sensor on 
1 m Intervals 
26 ESF-TMA-ERT-3 Electrical Resistivity 
Tomography 
6.25 3.89 -0.36 1.15 3.85 -5.71 -45.0 7.57 8.70 0.04 
9 
Electrical Resistivity 
Tomography, 
Electrode Sensor on 
1 m Intervals 
27 ESF-TMA-ERT-4 Electrical Resistivity 
Tomography 
6.25 3.90 0.36 0.38 3.97 6.29 45.0 7.57 8.70 0.04 
9 
Electrical Resistivity 
Tomography, 
Electrode Sensor on 
1 m Intervals 
28 ESF-TMA-RB-1 Rock Bolt w/Load Cell 0.14 0.05 -0.38 0.26 4.21 -0.38 0.0 5.72 4.00 0.01 
1 1 
Vibrating Wire Load 
Cell on Head of Rock 
Bolt 
29 ESF-TMA-RB-2 Rock Bolt w/Load Cell -0.23 0.00 -0.35 -0.18 4.22 -0.42 0.0 5.72 4.00 0.01 
1 1 
Vibrating Wire Load 
Cell on Head of Rock 
Bolt 
30 ESF-TMA-RB-3 Rock Bolt w/Load Cell 0.59 0.10 -0.31 0.60 4.03 -0.35 0.0 5.72 4.00 0.01 
1 1 
Vibrating Wire Load 
Cell on Head of Rock 
Bolt 
31 ESF-TMA-RB-4 Rock Bolt w/Load Cell -0.68 0.13 -0.29 -0.59 4.18 -0.23 0.0 5.72 4.00 0.01 
1 1 
Vibrating Wire Load 
Cell on Head of Rock 
Bolt 
32 ESF-TMA-RB-5 Rock Bolt w/Load Cell 0.14 -5.37 -0.39 0.06 -9.47 -0.41 0.0 5.72 4.00 0.01 
1 1 
Vibrating Wire Load 
Cell on Head of Rock 
Bolt 
33 ESF-TMA-RB-6 Rock Bolt w/Load Cell -0.20 -5.45 -0.42 -0.21 -9.45 -0.42 0.0 5.72 40.00 0.01 
1 1 
Vibrating Wire Load 
Cell on Head of Rock 
Bolt 
34 ESF-TMA-RB-7 Rock Bolt w/Load Cell 0.59 -5.49 -0.30 0.64 -9.60 -0.36 0.0 5.72 4.00 0.01 
1 1 
Vibrating Wire Load 
Cell on Head of Rock 
Bolt 
35 ESF-TMA-RB-8 Rock Bolt w/Load Cell -0.64 -5.38 -0.31 -0.73 -9.43 -0.45 0.0 5.72 4.00 0.01 
1 1 
Vibrating Wire Load 
Cell on Head of Rock 
Bolt 
36 ESF-TMA-TE-1 Tape Extensometer Array 3 -2.00 0.00 Multiple 0.0 2.54 Up to 0.5 
1 
4-pin Tape 
Extensometer Array 
37 ESF-TMA-TE-2 Tape Extensometer Array 3 2.00 0.00 Multiple 0.0 2.54 Up to 0.5 
1 
4-pin Tape 
Extensometer Array 
38 ESF-TMA-TE-3 Tape Extensometer Array 3 -6.50 3.00 Multiple 0.0 2.54 Up to 0.5 
1 
4-pin Tape 
Extensometer Array 
39 ESF-TMA-TE-4 Tape Extensometer Array 3 -6.50 5.10 Multiple 0.0 2.54 Up to 0.5 
1 
4-pin Tape 
Extensometer Array 

Table 6.2-2. SHT Borehole Information (continued) 
Types and No. of Sensors Comments 
Bottom Electrode Chemistry 
Collar Coordinates 
(meters) 
Coordinates 
(meters) 
Orientation 
Degree 
Diameter 
(cm) 
Length 
(m) 
Volume 
(m3)Borehole Borehole 
Thermo-
Couples RTD Thermistors 
Load Call 
(Average) 
Anchor 
in MPBX 
Type/Wire 
Extensometer 
Humidity 
Sensor 
Pressure 
Transducer 
Sensor 
(ERT) 
Absorbing 
Pad 
Number Identification Primary Purpose X Y Z X Y Z 
40 ESF-TMA-TE-5 Tape Extensometer Array 3 6.50 3.00 Multiple 0.0 2.54 Up to 0.5 
1 
4-pin Tape 
Extensometer Array 
41 ESF-TMA-TE-6 Tape Extensometer Array 3 6.50 5.00 Multiple 0.0 2.54 Up to 0.5 
1 
4-pin Tape 
Extensometer Array 
ESF-TMA-IN-THRM-1 
through 15 
Thermistors 
15 
5 Thermistors in the 
Insulation of Each Rib 
ESF-TMA-STC-1 
through 36 
Thermocouple 
36 
Surface 
Thermocouples 
Located on Each Rib 
ESF-ATC-1 through 3 Thermocouple 
3 
Surface 
Thermocouples 
Located on Each Rib 
ESF-TMA-WX-1 
through 6 
Wire Extensometer 
6 
6 Sets of Strain 
Measurements on Rib 
TOTAL 226.30 0.84 204 103 26 8 25 12 8 8 36 100 
TOTAL NUMBER OF SENSORS (ALL TYPES): 530 
Source: CRWMS M&O 1999 [DIRS 129261] 
NOTE: Borehole coordinates are referenced to a 0.0.0 coordinate located at the center of the collar for the heater borehole. 

INTENTIONALLY LEFT BLANK 

Table 6.2-3. SHT Post-Testing Borehole Information 
Collar Coordinates (Cartesian)a 
Hole Hole 
Borehole 
Number 
Borehole ID 
(ESF-TMA) Primary Purpose 
X Y Z Orientation Diameter Length 
meters meters meters azim/decline cm meters 
194 PTC-H-1 Overcore Heater 0.00 0.00 0.00 az -288/ 0.5 deg 25.40 7.00 
195 - Deleted PTC-RB-1 Overcore Rock Bolt 0.18 0.00 -0.37 az -288/ 0.0 deg 15.24 4.00 
196 PTC-MPBX-1 Overcore MPBX 0.18 0.00 0.29 az -288/ 0.5 deg 15.24 7.00 
197 PTC-NEU-2 Overcore Hyd. 6.50 4.30 0.00 az 18/ 7.5 deg 15.24 6.00 
198 PTC-TC-6 Overcore TC 6.50 5.50 0.00 az 18/ 0.0 deg 15.24 6.50 
199 PTC-1 Observation 6.50 4.70 0.53 az 18/ 0.0 deg 7.57 7.50 
200 PTC-2 Observation 6.50 4.70 0.26 az 18/ -7.94 deg 7.57 8.10 
201 PTC-3 Observation 6.50 4.70 -0.28 az 18/ -22.68 deg 7.57 8.10 
202 PTC-4 Observation -0.31 0.00 0.18 az -288/ 0.0 deg 7.57 8.00 
203 PTC-5 Observation 0.40 0.00 0.25 az -288/ 0.0 deg 7.57 8.00 
204 PTC-6 Observation 1.14 0.00 0.50 az -288/ 9.8 deg 7.57 8.00 
Source: CRWMS M&O 1999 [DIRS 129261] 
NOTES: From field survey. 
a 
+X-direction azimuth = 18 degrees (N); 
+Y-direction azimuth = 288 degrees (W); 
+Z-direction azimuth = vertically. 
Table 6.2.1.3-1. SHT Thermal Conductivity Laboratory Data for Four Specimens from Heater Borehole 1 
Apparatusa 
Temperature 
(C) 
Thermal Conductivity (W/(m-K)) 
Mean 
Standard 
Deviation ESF-H1-0.6-B ESF-H1-11.3-B ESF-H1-11.6-B ESF-H1-19.9-B 
LT 30 1.50 1.76 1.37 1.76 1.60 0.20 
LT 50 1.52 1.79 1.40 1.77 1.62 0.19 
LT 70 1.54 1.81 1.44 1.77 1.64 0.18 
TCA 70 1.58 1.96 1.61 1.89 1.76 0.19 
TCA 110 1.56 1.88 1.57 1.80 1.70 0.16 
TCA 155 1.61 1.85 1.62 1.79 1.72 0.12 
TCA 200 1.60 1.82 1.59 1.78 1.70 0.12 
TCA 245 1.57 1.81 1.60 1.75 1.68 0.12 
TCA 289 1.48 1.76 1.56 1.69 1.62 0.13 
Mean -1.55 1.83 1.53 1.78 1.67 N/A 
Standard Deviation 0.04 0.06 0.10 0.05 N/A 0.15 
DTN: SNL22080196001.001[DIRS 109722] 
a 
A low temperature (LT) device was used for testing at 70C and below; a thermocouple apparatus (TCA) was used 
for 70C and above. 

Table 6.2.2.4-1. Parameters for the Estimation of Preheating SHT Air Permeability, k, around Injection 
Zones for Various Boreholes 
Borehole and Data File ID 
Borehole 
Length (m) 
Borehole 
Radius 
(cm) 
Packed 
Zone, L (m) 
Constant 
Flow Rate, 
Q(SLPM) 
P2-P1 
(kPa) 
Estimated 
Permeability 
k(m2) 
Borehole 1 (5/24-03) 7.00 4.8 1.73 53. 35.0 1.5E-13 
Borehole 1 (5/28-08) 7.00 4.8 1.73 50. 32.5 1.5E-13 
Borehole 1 (5/30-14) 7.00 4.8 2.70 22. 9.5 1.8E-13 
Borehole 2 (5/28-06) 6.91 3.79 6.00 22. 13.4 7.2E-14 
Borehole 3 (5/28-02) 7.02 3.79 6.11 100. 22.3 1.8E-13 
Borehole 4 (5/28-03) 6.89 3.79 5.98 22. 77.0 9.2E-15 
Borehole 6 (5/30-07) 11.99 3.79 11.07 40. 20.0 5.1E-14 
Borehole 7 (5/31-01) 5.91 3.79 5.00 360. 10.7 1.7E-12 
Borehole 7 (5/31-07) 5.91 3.79 2.26 500. 16.0 2.9E-12 
Borehole 10 (5/24-02) 8.00 2.4 7.09 3. 10.6 1.2E-14 
Borehole 11 (5/28-04) 6.80 2.4 5.89 300. 3.0 5.2E-12 
Borehole 12 (5/28-05) 7.67 2.4 6.76 200. 37.0 2.1E-13 
Borehole 13 (5/30-08) 5.95 3.79 5.04 22. 16.5 6.6E-14 
Borehole 15 (5/29-14) 8.18 3.79 7.09 20. 48.0 1.4E-14 
Borehole 16 (5/30-09) 5.18 3.79 3.94 11. 64.0 8.3E-15 
Borehole 17 (5/28-07) 8.00 3.79 6.91 100. 1.5 2.8E-12 
Borehole 18 (5/30-10) 4.86 3.79 3.59 21. 15.5 8.8E-14 
Borehole 19 (5/31-04) 5.79 3.79 4.88 20. 6.6 1.6E-13 
Borehole 22 (5/29-02) 5.00 3.79 4.09 1. 6.4 9.9E-15 
Borehole 23 (5/29-01) 5.50 3.79 4.59 1. 11.0 5.0E-15 
Borehole 24 (5/31-03) 8.71 3.79 7.44 5. 15.7 1.2E-14 
Borehole 25 (5/31-02) 8.74 3.79 7.82 100. 7.8 4.6E-13 
Borehole 26 (5/31-05) 8.70 3.79 7.73 200. 6.8 1.1E-12 
Borehole 27 (5/30-13) 8.70 3.79 7.43 4.5 30.0 5.1E-15 
DTN: LB960500834244.001 [DIRS 105587]. 
SLPM = standard liter per minute. 

Table 6.2.2.4-2. Input Parameters and Estimated Preheating Air Permeability, k(m2) for Consecutive 0.69 
Meter Zones from Injection Tests Between Straddle Packers in SHT Borehole 6 
Borehole 6 Data File and 
Straddle Zone ID 
Mid-zone 
Location from 
Collar (m) 
Constant Flow Rate, 
Q(SLPM) 
P2-P1 
(kPa) Permeability k(m2) 
(5/29-03) 3'-5' 1.22 1.03 47.00 4.0E-15 
(5/29-04) 5'-7' 1.83 0.39 65.00 1.0E-15 
(5/29-05) 7'-9' 2.44 0.62 57.20 1.9E-15 
(5/29-06) 9'-11' 3.05 0.62 58.00 1.9E-15 
(5/29-07) 11'-13' 3.66 0.62 * * 
(5/29-08) 13'-15' 4.27 2.04 * * 
(5/29-09) 15'-17' 4.88 2.01 58.00 6.1E-15 
(5/29-10) 17'-19' 5.49 2.01 24.50 1.7E-14 
(5/29-11) 19'-21' 6.10 2.01 28.00 1.4E-14 
(5/29-12) 21'-23' 6.71 4.00 17.20 5.0E-14 
(5/30-06) 23'-25' 7.32 4.02 8.00 1.1E-13 
(5/29-13) 25'-27' 7.92 42.00 25.00 3.4E-13 
(5/30-01) 25'-27' 7.92 40.50 25.20 3.3E-13 
(5/31-06) 25'-27' 7.92 41.00 27.00 3.1E-13 
(5/30-02) 27'-29' 8.53 2.00 6.20 7.3E-14 
(5/30-03) 29'-31' 9.14 2.03 13.00 3.4E-14 
(5/30-04) 31'-33' 9.75 2.03 14.00 3.1E-14 
(5/30-05) 33'-35' 10.36 2.00 0.75 6.2E-13 
DTN: LB960500834244.001 [DIRS 105587]. 
NOTE: Entries containing an asterisk (*) indicate that the pressure response to the constant injection flow rate is 
linear with time, indicative of injection into a nearly closed system: in other words, formation of a very low 
permeability. 

Table 6.2.2.4-3. Postcooling Air Permeability, k (m2), for SHT Boreholes 1, 3, 6, 7, 16, 18, 19 
Packed Constant 
Injection Zone and Datafile ID 
Zone 
L (m) 
Flowrate. 
Q(SLPM) 
P2-P1 
(kPa) 
k(m2) assuming 
Tf=30.6C 
Borehole 1-Zone 1 (Jan21-08) 0.59 1 1.62 1.5E-13 
Borehole 1-Zone 2 (Jan21-09) 0.59 10 3.48 6.8E-13 
Borehole 1-Zone 3 (Jan21-10) 0.59 10 2.3 1.0E-12 
Borehole 1-Zone 4 (Jan21-11) 0.59 10 2.36 1.0E-12 
Borehole 1-Zone 5 (Jan21-13) 0.59 10 0.46 5.2E-12 
Borehole 1-Zone 6 (Jan21-12) 1.34 10 0.972 1.4E-12 
Borehole 3 (21Jan03) 6.11 40 3.22 5.7E-13 
Borehole 6 (21Jan04) 11.07 40 14.8 7.2E-14 
Borehole 7 (21Jan05) 5.00 100 2.17 2.5E-12 
Borehole 7-back zone (22Jan01) 2.43 100 2.15 4.5E-12 
Borehole 16 Zone 3 (Jan2106) 2.10 1 2.71 3.9E-14 
Borehole 18 Zone 3 (Jan2107) 1.55 10 4.9 2.7E-13 
Borehole 19 (21Jan02) 4.88 20 3.37 3.3E-13 
DTN: LB980901123142.001 [DIRS 118999]. 
Table 6.2.2.4-4. Comparison of Preheating and Postcooling Air Permeability Measurements for SHT 
Boreholes 3, 6, 7, 16, 18, 19 
Preheating Air Permeability 
(assume Tf=24.6C) 
Postcooling Air Permeability 
(assume Tf=30.6C) 
Borehole and Datafile ID L (m) k(m2) Borehole and Datafile ID L (m) k(m2) 
Postcooling/ 
Preheating 
Ratio 
Borehole 3 (5/28-02) 6.11 1.8E-13 3 (21Jan-03) 6.11 5.7E-13 3.1 
Borehole 6 (5/30-07) 11.07 5.1E-14 6 (21Jan-04) 11.07 7.2E-14 1.4 
Borehole 7 (5/31-01) 5.00 1.7E-12 7 (21Jan-05) 5.00 2.5E-12 1.5 
Borehole 7 (5/31-07) 2.26 2.9E-12 7 (22Jan-01) 2.43 4.5E-12 1.6 
16 Zone 3 (Aug 7,8, 1996) 2.10 1.1E-14 16-Zone 3 (Jan21-06) 2.10 3.9E-14 3.5 
18 Zone 3 (Aug 7,8, 1996) 1.55 2.3E-13 18-Zone 3 (Jan21-07) 1.55 2.7E-13 1.2 
Borehole 19 (5/31-04) 4.88 1.6E-13 19 (21Jan-02) 4.88 3.3E-13 2.0 
DTNs: LB960500834244.001 [DIRS 105587]; LB980901123142.001 [DIRS 118999]. 

Table 6.2.2.4-5. SHT Gas Tracer Test Results 
Tracer Injection 
(Borehole 1, location 
w.r.t. collar) 
Withdrawal 
Location 
Borehole Number 
- Zone First Arrival Time 
Mass Recovery (qualitative 
analysis) 
3.93m  4.42m 16-Zone 3 3 minutes 100% within 30 minutes 
3.93m  4.42m 16-Zone 3 3 minutes 100% within 30 minutes 
3.93m  4.42m 18-Zone 3 7 minutes 100% within 15 hours 
5.05m  5.64m 16-Zone 3 12 minutes 50% within 1 hour 
5.05m  5.64m 18-Zone 3 8 minutes No analysis made 
DTN: LB980901123142.001 [DIRS 118999]. 
Table 6.2.2.5-1. SHT Preheating Laboratory Hydrological Measurement of Wet-Drilled Cores 
Borehole 1, ESF-TMA-H1 
Gravimetric Water 
Sample Location Saturation Porosity Bulk Density Particle Density Content 
(m) (%) (%) (g/cc) (g/cc) (g/g) 
1.0 89.46 10.66 2.25 2.51 0.043 
2.5a 88.04 13.30 2.18 2.52 0.054 
3.7 93.60 8.87 2.29 2.52 0.036 
4.7 97.27 11.83 2.22 2.51 0.051 
5.7 93.97 13.83 2.16 2.51 0.061 
6.7 96.03 11.89 2.21 2.51 0.052 
a 
Contains small voids. 
Borehole 6, ESF-TMA-OMPBX-1 
Gravimetric Water 
Sample Location Saturation Porosity Bulk Density Particle Density Content 
(m) (%) (%) (g/cc) (g/cc) (g/g) 
0.2 94.82 11.00 2.24 2.51 0.047 
2.4 94.75 10.43 2.25 2.51 0.044 
4.4 93.58 10.18 2.26 2.51 0.042 
7.5b 96.87 23.62 1.96 2.57 0.104 
Subcore 20.44 2.02 2.53 
9.3 96.17 11.55 2.22 2.52 0.050 
11.3 93.07 9.74 2.27 2.51 0.040 
b 
Split along axis during oven drying 
Borehole 5, ESF-TMA-MPBX-4 
Gravimetric Water 
Sample Location 
(m) 
Saturation 
(%) 
Porosity 
(%) 
Bulk Density 
(g/cc) 
Particle Density 
(g/cc) 
Content 
(g/g) 
0.7c 95.85 17.03 2.05 2.48 0.079 
2.1c 101.61 9.69 2.25 2.49 0.044 
2.6d 102.17 13.33 2.17 2.50 0.063 
3.8d 96.74 10.58 2.24 2.50 0.046 
Subcore 10.44 2.24 2.50 
5.4 97.65 9.60 2.27 2.51 0.040 
Contains open fractures and large vugs. 
d 
Received in fragments. 

Table 6.2.2.5-1. SHT Preheating Laboratory Hydrological Measurement of Wet-Drilled Cores 
(Continued) 
Borehole 1, ESF-TMA-H1 
Gravimetric Water 
Sample Location Saturation Porosity Bulk Density Particle Density Content 
(m) (%) (%) (g/cc) (g/cc) (g/g) 
Borehole Summary 
Saturation 
(%) 
Porosity 
(%) 
Bulk Density 
(g/cc) 
Particle Density 
(g/cc) 
Gravimetric Water 
Content 
(g/g) 
SHT average: 95.39 12.53 2.20 2.51 0.053 
standard deviation 3.56 3.89 0.09 0.02 0.017 
DTN: LB970500123142.003 [DIRS 131500]. 
Table 6.2.2.5-2. Preheating Laboratory Hydrological Measurement of Grab Samples from Wet 
Excavation of the Observation Drift of the ESF Thermal Test Facility 
Observation Drift Grab Samples 
Sample Gravimetric Water 
Location 
(m) 
Saturation 
(%) 
Porosity 
(%) 
Bulk Density 
(g/cc) 
Particle Density 
(g/cc) 
Content 
(g/g) 
30.0 99.00 8.60 2.26 2.47 0.038 
Subsample 94.90 8.30 2.27 2.47 0.035 
40.0 95.40 9.30 2.27 2.50 0.039 
Subsample 93.80 10.10 2.24 2.49 0.042 
Subsample 80.50 10.40 2.24 2.50 0.037 
Observation Drift (OD) Grab Sample Summary 
Gravimetric Water 
Saturation 
(%) 
Porosity 
(%) 
Bulk Density 
(g/cc) 
Particle Density 
(g/cc) 
Content 
(g/g) 
OD Average 92.72 9.34 2.26 2.49 0.038 
Standard 7.10 0.91 0.02 0.02 0.003 
Deviation 
DTN: LB970500123142.003 [DIRS 131500]. 

Table 6.2.2.5-3. SHT Bulk Densities and Porosity of Cores from Boreholes CHE-1 and CHE-2 
Sample ID 
Boreholes 
CHE-1 and 
CHE-2 
Depth 
(m) 
Wet Bulk 
Density 
(g/cm3) 
Dry Bulk 
Density 
(g/cm3) 
Effective 
Porosity 
0047525.2 CHE-1 0.7 2.348 2.247 0.102 
0047525.2A CHE-1 0.7 2.350 2.249 0.102 
0047526.2 CHE-1 1.4 2.349 2.240 0.109 
0047527.2 CHE-1 2.5 2.345 2.246 0.0998 
0047528.2 CHE-1 3.8 2.331 2.224 0.107 
0047529.2 CHE-1 4.3 2.344 2.235 0.109 
0047530.2A CHE-2 4.5 2.294 2.167 0.127 
0047531.2 CHE-2 1.5 2.332 2.222 0.111 
0047533.2 CHE-2 3.9 2.290 2.156 0.135 
0047534.2 CHE-2 4.6 2.331 2.229 0.103 
0047535.2 CHE-2 5.4 2.314 2.195 0.119 
Mean* -11 samples 2.330.02 2.220.03 0.1110.011 
DTN: LL020506123142.021 [DIRS 169256]. 
a 
Statistical mean for 11 samples; errors represent one standard deviation for all samples collectively. 
Table 6.2.2.5-4. SHT Laboratory Hydrological Measurements of Postcooling Dry-Drilled Cores 
Sample ID LBNL ID Saturation Porosity 
Bulk Density 
(g/cc) 
Particle 
Density 
(g/cc) 
Gravimetric 
Water Content 
(g/g) 
SPC01009880 H-1 0.50 0.169 1.96 2.36 0.043 
SPC01009882 H-2 0.79 0.105 2.19 2.44 0.038 
SPC01009884 H-3 0.75 0.115 2.16 2.44 0.040 
SPC01009885 H-4 0.44 0.099 2.20 2.44 0.020 
SPC01009887 H-5 0.19 0.101 2.18 2.42 0.009 
SPC01009888 H-6 0.32 0.110 2.17 2.43 0.016 
SPC01009889 H-7 0.80 0.104 2.19 2.45 0.038 
SPC01009806 H-8 0.80 0.098 2.19 2.43 0.035 
SPC01009807 H-9 0.61 0.099 2.19 2.43 0.027 
SPC01009808 H-10 0.82 0.090 2.21 2.43 0.033 
SPC01009809 H-11 0.78 0.092 2.20 2.42 0.033 
SPC01009810 H-12 0.53 0.105 2.16 2.41 0.026 
SPC01009811 H-13 0.38 0.097 2.19 2.43 0.017 
SPC01009812 H-14 0.41 0.089 2.21 2.43 0.016 
SPC01009890 H-15 0.76 0.090 2.21 2.43 0.031 
SPC01009891 H-16 0.87 0.102 2.17 2.42 0.041 
SPC01009892 H-17 0.89 0.101 2.18 2.42 0.041 
SPC01009893 H-18 0.94 0.093 2.20 2.43 0.040 
SPC01009894 H-19 0.83 0.106 2.17 2.43 0.041 
SPC01009895 H-20 0.85 0.087 2.24 2.45 0.033 
SPC01009896 H-21 0.89 0.082 2.22 2.42 0.033 
SPC01009897 H-22 0.73 0.131 2.12 2.44 0.044 
SPC01009898 H-23 0.86 0.104 2.17 2.42 0.041 

Table 6.2.2.5-4. SHT Laboratory Hydrological Measurements of Postcooling Dry-Drilled Cores 
(Continued) 
Sample ID LBNL ID Saturation Porosity 
Bulk Density 
(g/cc) 
Particle 
Density 
(g/cc) 
Gravimetric 
Water Content 
(g/g) 
SPC01009899 H-24 0.86 0.099 2.20 2.44 0.039 
SPC01009900 H-25 0.82 0.117 2.15 2.44 0.045 
SPC01009901 H-26 0.86 0.103 2.20 2.45 0.040 
SPC01009902 H-27 0.77 0.143 2.09 2.44 0.053 
SPC01009903 H-28 0.88 0.087 2.23 2.44 0.034 
Average 
Standard Deviation 
0.104 2.18 2.43 
0.018 0.05 0.02 
DTN: LB980901123142.006 [DIRS 119029]. 
Table 6.2.3.1-1. Wire Extensometer Data 
Gage 
Days after Startup 
0 14 28 42 56 70 84 98 112 126 
TMA-WX-1 0 -0.1 0.08 0.02 0.03 0.27 0.2 0.33 0.49 0.47 
TMA-WX-2 0 -0.14 -0.15 -0.12 3.16 3.21 3.26 3.27 3.29 3.27 
TMA-WX-3 0 -0.03 -0.09 0.01 0.01 0.2 0.25 0.31 0.33 0.41 
TMA-WX-4 0 -0.83 -0.78 -0.78 -0.78 -0.58 -0.49 -0.66 -0.63 -0.31 
TMA-WX-5 0 -0.61 -0.66 -0.58 -0.52 -0.5 -0.44 -0.67 -0.4 -0.58 
TMA-WX-6 0 -2.45 -2.46 -1.98 -1.88 -1.89 -1.83 -2.95 -2.97 -2.97 
Days after Startup 
Gage 140 154 168 182 196 210 224 238 252 266 
TMA-WX-1 0.39 0.66 0.66 0.55 0.55 0.55 0.55 0.55 0.44 0.59 
TMA-WX-2 3.17 3.52 3.51 3.51 3.51 3.5 3.5 3.5 3.41 3.38 
TMA-WX-3 0.28 0.69 -23.92 -23.92 -23.84 -23.99 -24.08 -24.08 -24 -24.03 
TMA-WX-4 -0.59 -0.2 -0.21 -0.04 -0.04 -0.09 -0.09 -0.1 -0.1 -0.12 
TMA-WX-5 -0.89 -0.48 -0.59 -0.65 -0.78 -0.82 -0.82 -0.83 -0.81 -0.82 
TMA-WX-6 -3.21 -2.75 -2.91 -2.74 -2.74 -3.06 -3.06 -3.06 -2.96 -2.92 
Days after Startup 
Gage 280 294 308 322 336 350 364 378 392 406 
TMA-WX-1 0.46 0.22 0.01 -0.05 -5.89 -5.89 -6.4 -6.56 -6.63 -6.40 
TMA-WX-2 4.49 4.49 4.22 4.22 3.99 4.11 4.04 4.04 3.93 2.97 
TMA-WX-3 -23.91 -24.16 -24.16 -23.91 -24.42 -24.42 -24.42 -24.68 -24.66 -24.67 
TMA-WX-4 -0.17 -0.17 -0.17 -0.17 -0.68 -0.42 -0.68 -0.90 -0.91 -0.68 
TMA-WX-5 -0.69 -0.69 -0.95 -0.95 -0.95 -1.2 -38.29 -38.61 -38.65 -38.54 
TMA-WX-6 -2.99 -3.25 -3.5 -3.5 -3.75 -3.75 -3.5 -3.77 -3.83 
Gage Days after Startup 
420 434 448 462 476 490 504 518 
TMA-WX-1 -6.65 -3.93 -5.52 -5.54 -4.11 -2.31 -2.01 -2.39 
TMA-WX-2 2.97 2.85 0.37 0.67 0.22 -21.04 -20.51 -20.89 

Table 6.2.3.1-1. Wire Extensometer Data (Continued) 
Gage Days after Startup 
420 434 448 462 476 490 504 518 
TMA-WX-3 -24.67 -24.72 -24.71 -24.65 -24.65 1.19 1.92 1.46 
TMA-WX-4 -0.68 -0.91 -0.91 -0.89 -0.87 -53.45 -53.42 -53.48 
TMA-WX-5 -38.54 -38.72 -38.76 -38.98 -38.99 1.72 1.55 -3.99 
TMA-WX-6 -3.75 -3.50 -3.80 -3.79 -3.74 -3.71 -3.6 
DTNs: SN0401F3511695.012 [DIRS 169262]; SN0401F3511695.013 [DIRS 169263]. 
NOTE: Wire extensometer data given in mm. Extension is positive. 
Table 6.2.3.1-2. Tape Extensometer Measurements for the SHT 
Initial Displ. Displ. Displ. .Displ. Displ. Displ. 
Gage No. 
Reading 
(m) 
9/24/96 
(mm) 
10/21/96 
(mm) 
12/19/96 
(mm) 
1/7/97 
(mm) 
2/11/97 
(mm) 
3/10/97 
(mm) 
WXM-1 5.40439 -0.48 -0.78 -0.86 -0.76 -1.14 -1.19 
WXM-2 5.08585 -3.20 -3.20 -1.17 -3.71 -3.71 -3.71 
WXM-3a ---4.67249 0.33 erroneous 0.08 -1.93 2.24 
WXM-4 4.33635 -0.46 -0.21 -0.56 -0.64 -0.84 erroneous 
WXM-5 5.87639 -0.04 -0.32 -0.49 -0.57 -0.37 -0.82 
WXM-6 5.83158 -0.29 -0.129 -0.17 -0.39 -0.72 -0.80 
Gage No. 
Displ. 
4/21/97 
(mm) 
Displ. 5/6/97 
(mm) 
Displ. 
6/25/97 
(mm) 
Displ. 
7/24/97 
(mm) 
Displ. 
8/20/97 
(mm) 
Displ. 
7/15/97 
(mm) 
WXM-1 -1.27 -0.86 -1.39 -1.52 -1.34 -1.16 
WXM-2 erroneous -4.39 -4.21 -4.21 -4.21 -3.71 
WXM-3b 0.26 0.31 -0.17 2.29 -0.07 0.26 
WXM-4 -0.36 -0.18 -1.17 -1.22 -1.20 -1.50 
WXM-5 -0.72 -0.79 -0.88 -0.95 -0.62 -0.60 
WXM-6 -0.64 -0.31 -1.15 -0.95 -0.21 -0.64 
DTN: SN0401F3511695.012 [DIRS 169262]. 
a 
Extension is positive. 
b WXM-3 initial reading suspect. Change in displacement from 9/24/96. 

Table 6.2.3.1-3. Summary of SNL-Installed Measurement System Specifications 
Measurement System Manufacturer Gage Accuracy, Range & Precision 
Type-K Thermocouples STI (probes) 2.2C 
(Chromel-Alumel) Omega max 1280C 
Vibrating Wire Displacement GeoKon 1 in. full range 
Transducers Resolution: .02% 
High-Temp LVDT RDP 0.5% of full range = 19 mm @200C 
Wire Extensometer Houston Scientific, Inc. 0.1% resolution 
2-in. range 
Vibrating Wire Load Cell GeoKon 60,000 lb max 
0.5% full range 
Tape Extensometer GeoKon 0.127 mm 
Goodman Jack Sinco Range: 
-Readout Box pressure: 010,000 psi 
-Near LVDT displacement: -0.25 to +0.25 in. 
-Far LVDT Accuracy: 
-Pressure Gage pressure: 0.2% 
-Enerpak Pump displacement: 0.005 in. 
Power Monitor Magtrol Volts (0.2% of reading +0.2% of range) 0600 volts 
Amps (0.22% of reading +0.25% of range) 050 amps 
Watts (0.2% of reading +0.3% of range) 
Thermistors Omega 0.2C 
100C range 
Source: CRWMS M&O 1999 [DIRS 129261]. 
Table 6.2.3.2-1. Estimated Rock Mass Modulus in Borehole ESF-TMA-BJ-1 (Goodman/Borehole Jack) 
Date Distance from Collar 
2.0 m 3.0 m 4.0 m 4.51 m 6.2 m 
Rock Mass Modulus-GPa (Temp C) 
8/26/96 6.9 (25) 3.71 (25) No test No test No test 
10/10/96 10.3 (27.5) 10.3 (27.7) 8.3 (30.2) 6.0 (34) No test 
11/26/96 Results discarded (31.1) 10.2 (35.9) 5.71 (46.4) 5.01 (55.4) 8.4 (141.8) 
3/18/97 Results discarded (35) 6.3 (41) 10.3 (52) 5.7 (58.7) 22.8 (143.1) 
10/23/97 1st run No test No test 6.28 (Ambient) Discarded 8.28 (Ambient) 
10/23/97 2nd run No test No test 8.97 (Ambient) 7.1 (Ambient) 10.0 (Ambient) 
1/29/98 1st run 5.47 (Ambient) 9.67 (Ambient) 8.28 (Ambient) 7.60 (Ambient) Not calculated 
1/29/98 2nd run No test No test No test No test 11.72 (Ambient) 
1/29/98 3rd run No test No test No test No test 11.72 (Ambient) 
DTN: SNF35110695001.010 [DIRS 158300]. 
NOTE: Italicized calculated moduli are based on field data in which the difference between the two borehole jack 
LVDT readings slightly exceeded the limits set in ASTM D 4971-89 [DIRS 101786]. The fractured nature 
of the rock made setting the jack difficult. Discarded results were for data that far exceeded ASTM D 
4971-89 [DIRS 101786] limits. 

Table 6.2.3.3-1. Rock Bolt Load Cells, Load Versus Time 
TMA RBLC Days After Startup 
Gage 0 14 28 42 56 70 84 98 112 126 
RB-LC-1-AVG 22662 22262.8 22158 21732.3 21537.1 21444.1 21407.5 21380.8 21340.3 21308.5 
RB-LC-2-AVG 14859.4 14739.7 14708.6 14680.1 14643.7 14597 14559.8 14522.5 14496.5 14449.6 
RB-LC-3-AVG 22428 22402.2 22378.7 22348.4 22317.5 22281 22262.3 22243.2 22231 22224.1 
RB-LC-4-AVG 16663.9 16602.8 16580.3 16558.8 16522.1 16496.6 16467.4 16446.3 16424.2 16407.5 
RB-LC-5-AVG 25971.9 25928.5 25887 25856.6 25829.3 25802.6 25783.4 25765.5 25748.7 25738.1 
RB-LC-6-AVG 14642.7 14633.2 14632.7 14627.3 14619.4 14609.5 14601.2 14595.9 14589.2 14573.7 
RB-LC-7-AVG 4932.6 4921.1 4919.7 4911.8 4904.3 4893.6 4890.9 4883.8 4877.5 4873 
RB-LC-8-AVG 16862.8 16818.5 16783.6 16758.7 16738.7 16605 16592.7 16575.4 16566 16561.5 
TMA RBLC Days After Startup 
Gage 140 154 168 182 196 210 224 238 252 266 
RB-LC-1-AVG 21279.7 21254.3 21206.3 21176.9 21161.2 21145.9 21127.1 21112.2 21100.9 21102.1 
RB-LC-2-AVG 14422.7 14405.6 14389.9 14378.6 14369.9 14365.5 14353.4 14349 14342 14341.1 
RB-LC-3-AVG 22214.2 22206.8 22201.1 22194.3 22189.6 22183.4 22176.4 22171.7 22165.3 22158.4 
RB-LC-4-AVG 16394.3 16377.4 16361.5 16350.8 16340.4 16331 16320.2 16316.8 16312.1 16310.9 
RB-LC-5-AVG 25728.1 25722.2 25714.1 25705.1 25698.3 25692.7 25683.1 25676 25665.6 25652 
RB-LC-6-AVG 14567.1 14563.5 14562.3 14557.4 14553.9 14551.2 14549.3 14543.8 14543.4 14538.9 
RB-LC-7-AVG 4866.9 4866.7 4867.2 4866.6 4868.2 4865.2 4863.2 4863.9 4864.1 4867.1 
RB-LC-8-AVG 16552.8 16544.8 16538 16533.3 16528.6 16522.3 16516.4 16514 16503.2 16501.5 
TMA RBLC Days After Startup 
Gage 280 294 308 322 336 350 364 378 392 406 
RB-LC-1-AVG 21090.8 21092.2 21097.1 21090.6 21081.3 21070.5 21066.3 21073.0 21072.7 21080.6 
RB-LC-2-AVG 14354.1 14380.2 14391.6 14396.8 14404.6 14409 14412.4 14416.8 14421.9 14439.3 
RB-LC-3-AVG 22160.3 22171.6 22179.8 22180.8 22182.1 22179.1 22180.2 22177.4 22179.1 22183.0 
RB-LC-4-AVG 16315.9 16332.3 16338.5 16340.7 16346.6 16348.2 16350.4 16354.0 16358.0 16366.6 
RB-LC-5-AVG 25641.1 25617.7 25604.4 25589.9 25581.9 25573.8 25571.5 25561.4 25555.1 25548.7 
RB-LC-6-AVG 14538.6 14538.2 14536.1 14534.8 14531.9 14531.1 14529.5 14528.5 14530.7 14534.1 
RB-LC-7-AVG 4865 4858.2 4857.6 4856.9 4851 4850.2 4850.1 4852.8 4853.3 4856.6 
RB-LC-8-AVG 16497.8 16491.7 16491.7 16488.4 16487 16484.6 16477.2 16480.8 16475.8 16476.1 
TMA RBLC Days After Startup 
Gage 420 434 448 462 476 490 504 518 
RB-LC-1-AVG 21074.6 21058.0 21019.0 20999.9 20964.1 20943.1 20933.8 20928.1 
RB-LC-2-AVG 14435.0 14432.4 14419.5 14391.8 14352.8 14338.9 14347.6 14346.7 
RB-LC-3-AVG 22179.8 22177.4 22168.4 22150.2 22111.5 22097.6 22099.3 22096.8 
RB-LC-4-AVG 16360.9 16354.1 16345.6 16330.8 16282.0 16234.2 16268.6 16278.5 
RB-LC-5-AVG 25535.6 25525.3 25515.4 25496.9 25457.7 25444.7 25445.6 25445.2 
RB-LC-6-AVG 14533.1 14532.5 14528.0 14521.6 14503.0 14493.0 14492.2 14490.9 
RB-LC-7-AVG 4860.1 4858.9 4854.8 4842.0 4808.4 4796.1 4795.0 4680.1 
RB-LC-8-AVG 16468.7 16462.1 16454.2 16079.7 16060.3 16052.3 16056.2 16058.1 
DTN: SN0401F3511695.012 [DIRS 169262], SN0401F351695.013 [DIRS 169263]. 
NOTE: Load cell data are for average load and are given in lbs. 

Table 6.2.3.4-1. Mean Coefficients of Thermal Expansion during First Cycle Heating of Postcooling SHT Characterization Specimens 
TDR-MGR-HS-000002 REV 00 T6.2-20 September 2004 
Specimen ID 
Distance 
from collar 
(ft) 
Max. 
Temp. 
(C) 
Mean CTE on Heat-up (10-6/C) 
25-50 50-75 75-100 100-125 125-150 150-175 175-200 200-225 225-250 250-275 275-300 300-325 
Perpendicular to Heater, Outside 100C Isotherm 
PTC1-A 2.9-B 2.9 322 8.7 9.6 9.8 11.2 12.3 13.1 14.6 19.4 32.7 56.3 75.0 52.3 
PTC1-A 16.8-B 16.8 321 9.1 11.0 9.6 10.4 11.3 12.5 12.3 15.8 20.3 33.2 62.1 49.8 
PTC2-B 4.1-B 4.1 321 9.2 10.5 9.9 10.3 11.1 12.3 12.8 16.4 23.8 43.1 61.4 45.6 
Compilation without N = 3 3 3 3 3 3 3 3 3 3 3 3 
cooling outlier Mean = 9.0 10.4 9.8 10.7 11.6 12.6 13.2 17.2 25.6 44.2 66.2 49.2 
PTC1-A 2.9-B STD = 0.3 0.7 0.1 0.5 0.7 0.4 1.2 1.9 6.4 11.6 7.7 3.4 
Perpendicular to Heater, Inside 100C Isotherm 
PTC1-B19.0-B 19.0 322 9.0 10.1 8.9 9.4 10.8 12.9 13.5 16.0 20.4 30.6 51.4 54.0 
Parallel to Heater, Outside 100C Isotherm 
PTC4-A 4.6 B 4.6 321 8.8 10.0 8.3 9.5 10.5 11.9 11.2 13.9 20.1 34.1 81.4 69.0 
PTC5-B 4.1-B 4.6 321 8.7 10.4 8.9 9.6 10.6 11.6 11.7 14.5 34.2 38.5 57.0 63.1 
PTC5-B 24.4-B 4.6 321 8.9 10.5 8.6 9.4 10.2 11.2 11.1 14.1 17.9 26.7 47.5 52.9 
PTC5-B 24.4-C 4.6 331 8.8 9.9 8.5 9.3 10.2 11.4 12.6 17.2 21.5 34.5 59.9 45.1 
N = 4 4 4 4 4 4 4 4 4 4 4 4 
Mean = 8.8 10.2 8.6 9.5 10.4 11.5 11.7 14.9 23.4 33.5 61.5 57.5 
STD = 0.1 0.3 0.3 0.1 0.2 0.3 0.7 1.5 7.3 4.9 14.3 10.6 
Parallel to Heater, Inside 100C Isotherm 
PTC4-A 6.8-B 6.8 318 7.9 8.8 9.1 9.4 10.5 11.1 12.4 15.4 24.3 38.0 70.2 73.0 
PTC4-B 14.8-B 14.8 321 9.0 10.3 8.6 9.3 10.4 12.0 12.4 15.0 19.2 28.1 45.8 52.2 
PTC4-A 19.0-B 19.0 319 8.1 8.9 8.9 9.2 10.1 11.1 12.4 14.5 17.5 28.0 51.0 56.9 
PTC4-B 19.8-B 19.8 318 8.4 9.1 9.4 9.8 10.6 11.5 12.9 15.4 19.2 27.8 44.2 44.4 
PTC H1-A 15.6-B 15.6 322 7.66 9.48 8.24 9.11 10.19 10.65 11.05 12.33 14.63 22.02 41.38 54.172 
PTC MPBX1 14.2-B 14.2 322 8.51 9.64 8.49 9.04 9.86 11.50 11.82 15.29 20.75 28.98 50.49 55.86 
N = 6 6 6 6 6 6 6 6 6 6 6 6 
Mean = 8.2 9.4 8.8 9.3 10.3 11.3 12.2 14.7 19.3 28.8 50.5 56.1 
STD = 0.5 0.6 0.4 0.3 0.3 0.5 0.6 1.2 3.2 5.1 10.3 9.4 
All Data Outside 100C Isotherm 
N = 7 7 7 7 7 7 7 7 7 7 7 7 
Mean = 8.9 10.3 9.1 10.0 10.9 12.0 12.3 15.9 24.4 38.1 63.5 54.0 
STD = 0.2 0.4 0.7 0.7 0.8 0.7 1.2 2.0 6.5 9.5 11.3 8.9 
All Data Inside 100C Isotherm 
N = 7 7 7 7 7 7 7 7 7 7 7 7 
Mean = 8.3 9.5 8.8 9.3 10.4 11.5 12.3 14.9 19.4 29.1 50.6 55.8 
STD = 0.5 0.6 0.4 0.2 0.3 0.8 0.8 1.2 3.0 4.7 9.4 8.6 
All Data 
N = 14 14 14 14 14 14 14 14 14 14 14 14 
Mean = 8.6 9.9 9.0 9.6 10.6 11.8 12.3 15.4 21.9 33.6 57.1 54.9 
STD = 0.5 0.7 0.6 0.6 0.6 0.7 1.0 1.7 5.5 8.6 12.0 8.5 
95% 0.2 0.3 0.3 0.3 0.3 0.4 0.5 0.9 2.9 4.5 6.3 4.5 
DTN: SNL22080196001.003 [DIRS 119042]. 
NOTE: N = Number of samples; STD = Standard deviation; 95% = 95 Percent Confidence Limit; Lithostratigraphic Unit: Tptpmn; Thermal/mechanical 
Unit TSw2; Air dried. 

Table 6.2.3.4-2. Mean Coefficients of Thermal Expansion during First Cycle Cooling of Postcooling SHT Characterization Specimens 
TDR-MGR-HS-000002 REV 00 T6.2-21 September 2004 
Distance 
Max. 
Mean CTE on Cool-Down (10-6/C) 
from collar 
Temp. 
325-300 
300-275 
275-250 
250-225 
225-200 
200-175 
175-150 
150-125 
125-100 
100-75 
75-50 
50-30
Specimen ID 
(ft) 
(C) 
Perpendicular to Heater, Outside 100C Isotherm 
PTC1-A 2.9-B 
2.9 
322 
12.2 
16.5 
31.8 
21.6 
67.2 
35.4 
22.1 
15.2 
13.2 
15.0 
11.6 
11.4 
PTC1-A 16.8-B 
16.8 
321 
16.1 
30.2 
42.1 
39.5 
26.3 
19.2 
15.1 
12.9 
12.1 
10.7 
10.2 
9.7 
PTC2-B 4.1-B 
4.1 
321 
14.9 
27.8 
43.8 
48.0 
30.1 
20.4 
15.6 
13.3 
12.3 
10.8 
10.2 
9.6 
Compilation without N = 
2 
2 
2 
2 
2 
2 
2 
2 
2 
2 
2 
2 
cooling outlier Mean = 
15.5 
29.0 
42.9 
43.7 
28.2 
19.8 
15.4 
13.1 
12.2 
10.7 
10.2 
9.6 
PTC1-A 2.9-B STD = 
0.9 
1.7 
1.2 
6.0 
2.7 
0.9 
0.4 
0.3 
0.1 
0.1 
0.0 
0.1 
Perpendicular to Heater, Inside 100C Isotherm 
PTC1-B19.0-B 
19.0 
322 
18.8 
32.2 
38.3 
32.9 
22.9 
18.0 
15.0 
12.7 
12.3 
10.3 
10.2 
9.1 
Parallel to Heater, Outside 100C Isotherm 
PTC4-A 4.6 B 
4.6 
321 
14.2 
29.3 
50.7 
53.8 
29.6 
20.7 
15.8 
13.7 
12.6 
11.5 
10.4 
10.4 
PTC5-B 4.1-B 
4.6 
321 
15.1 
31.8 
43.4 
40.4 
29.2 
31.2 
17.1 
13.5 
12.7 
11.2 
10.4 
9.9 
PTC5-B 24.4-B 
4.6 
321 
19.1 
29.9 
35.9 
32.0 
21.9 
16.6 
14.0 
11.9 
11.5 
10.2 
9.7 
9.1 
PTC5-B 24.4-C 
4.6 
331 
18.6 
28.1 
40.9 
41.1 
27.8 
22.1 
15.8 
12.9 
11.9 
10.5 
9.8 
9.2 
N = 
4 
4 
4 
4 
4 
4 
4 
4 
4 
4 
4 
4 
Mean = 
16.8 
29.8 
42.7 
41.8 
27.1 
22.7 
15.7 
13.0 
12.2 
10.8 
10.1 
9.7 
STD = 
2.5 
1.5 
6.1 
9.0 
3.6 
6.2 
1.3 
0.8 
0.6 
0.6 
0.4 
0.6 
Parallel to Heater, Inside 100C Isotherm 
PTC4-A 6.8-B 
6.8 
318 
12.2 
26.6 
39.0 
45.8 
33.5 
26.0 
17.5 
14.0 
12.2 
11.9 
10.4 
9.8 
PTC4-B 14.8-B 
14.8 
321 
16.6 
29.5 
36.5 
33.1 
23.7 
18.1 
14.6 
12.5 
11.8 
10.4 
9.9 
9.3 
PTC4-A 19.0-B 
19.0 
319 
16.9 
29.2 
38.3 
34.6 
23.4 
17.5 
13.7 
12.3 
11.2 
9.7 
9.7 
10.0 
PTC4-B 19.8-B 
19.8 
318 
19.8 
26.6 
31.2 
29.8 
22.5 
18.2 
14.0 
12.3 
11.4 
10.8 
10.0 
9.4 
PTC H1-A 15.6-B 
15.6 
322 
19.33 
30.87 
32.25 
24.14 
18.09 
14.42 
12.59 
11.20 
10.55 
10.03 
9.29 
20.154 
PTC MPBX1 14.2-B 
14.2 
322 
17.89 
30.67 
39.41 
33.88 
23.31 
18.80 
15.12 
12.42 
11.60 
10.27 
9.79 
8.99 
N = 
6 
6 
6 
6 
6 
6 
6 
6 
6 
6 
6 
6 
Mean = 
17.1 
28.9 
36.1 
33.6 
24.1 
18.9 
14.6 
12.5 
11.5 
10.5 
9.9 
11.3 
STD = 
2.7 
1.9 
3.6 
7.1 
5.1 
3.8 
1.7 
0.9 
0.6 
0.8 
0.4 
4.4 
All Data Outside 100C Isotherm (Without cooling outlier PTC1-A 2.9-B) 
N = 
6 
6 
6 
6 
6 
6 
6 
6 
6 
6 
6 
6 
Mean = 
16.3 
29.5 
42.8 
42.4 
27.5 
21.7 
15.6 
13.0 
12.2 
10.8 
10.1 
9.7 
STD = 
2.1 
1.4 
4.8 
7.6 
3.1 
5.0 
1.0 
0.6 
0.4 
0.5 
0.3 
0.5 
All Data Inside 100C Isotherm 
N = 
7 
7 
7 
7 
7 
7 
7 
7 
7 
7 
7 
7 
Mean = 
17.4 
29.4 
36.4 
33.5 
23.9 
18.7 
14.7 
12.5 
11.6 
10.5 
9.9 
11.0 
STD = 
2.5 
2.1 
3.4 
6.5 
4.7 
3.5 
1.5 
0.8 
0.6 
0.7 
0.4 
4.1 
All Data (Without cooling outlier PTC1-A 2.9-B) 
N = 
13 
13 
13 
13 
13 
13 
13 
13 
13 
13 
13 
13 
Mean = 
16.9 
29.4 
39.4 
37.6 
25.6 
20.1 
15.1 
12.7 
11.8 
10.6 
10.0 
10.4 
STD = 
2.3 
1.8 
5.1 
8.2 
4.3 
4.4 
1.4 
0.8 
0.6 
0.6 
0.3 
3.0 
95% 
1.3 
1.0 
2.8 
4.4 
2.3 
2.4 
0.7 
0.4 
0.3 
0.3 
0.2 
1.6 
DTN: SNL22080196001.003 [DIRS 119042]. 
NOTE: N = Number of samples; STD = Standard deviation; 95% = 95 Percent Confidence Limit; Lithostratigraphic Unit: Tptpmn; Thermal/mechanical 
Unit TSw2; Air dried. 

Table 6.2.3.4-3. Summary Data: SHT Postcooling Characterization Unconfined Compression Tests 
PTC4-B 
PTC4-B 
PTC4-B 
PTC4 
PTC4 
PTC4 
PTC4-B 
PTC2-B
Specimen IDa 
9.2 
4.3 
6.6 
11.8 
17.4 
20.9 
26.0 
10.8 
PTCH1 8.6 
Date Tested 
21-07-98 
22-07-98 
22-07-98 
23-07-98 
23-07-98 
23-07-98 
24-07-98 
24-07-98 
24-07-98 
Thermal/Mechanical Unit 
TSw2 
TSw2 
TSw2 
TSw2 
TSw2 
TSw2 
TSw2 
TSw2 
TSw2 
Lithostratigraphic Unit 
Tptpmn 
Tptpmn 
Tptpmn 
Tptpmn 
Tptpmn 
Tptpmn 
Tptpmn 
Tptpmn 
Tptpmn 
Dry Bulk Density 
2.25 
2.27 
2.26 
2.32 
2.30 
2.32 
2.31 
2.21 
2.30 
Moisture Content (%) 
1.1 
1.0 
0.8 
0.9 
1.1 
1.1 
1.1 
1.0 
1.0 
Confining Pressure 
0 
0 
0 
0 
0 
0 
0 
0 
0 
Static Youngs Modulus 34.4 
33.4 
32.3 
37.0 
34.0 
34.4 
32.9 
20.1 
34.3 
(GPa) 
Static Poissons Ratio 
0.185 
0.168 
0.166 
0.259 
0.182 
0.187 
0.178 
0.251 
0.159 
Peak Stress 
175.4 
34.3 
113.9 
144.9 
240.5 
245.7 
191.4 
51.8 
80.5 
Axial Strain at Peak 
0.005274 0.001138 
0.003637 0.008941 0.007924 
0.007909 0.006003 0.00213 
0.002629 
Stress 
PTC 
PTCH1 
PTCH1 
PTC1 
MPBX1-
PTC1-B
Specimen IDa 
15.6 
18.7 
12.5 
15.7
B 14.4 
Date Tested 
27-07-98 
28-07-98 
29-07-98 
29-07-98 
30-07-98 
Thermal/Mechanical Unit 
TSw2 
TSw2 
TSw2 
TSw2 
TSw2 
Lithostratigraphic Unit 
Tptpmn 
Tptpmn 
Tptpmn 
Tptpmn 
Tptpmn 
Dry Bulk Density 
2.23 
2.28 
2.29 
2.31 
2.21 
Moisture Content (%) 1.3 
0.9 
1.1 
0.9 
0.9 
Statistical Summary 
Confining Pressure 0 
0 
0 
0 
0 
Mean 
Standard 
Count 
95% 
Deviation 
Confidence 
Limit 
Static Young's Modulus 
24.2 
34.2 
26.6 
35.4 
28.9 
31.6 
4.8 
14 
2.5 
(GPa) 
Static Poisson's Ratio 
0.123 
0.173 
0.393 
0.168 
0.183 
0.198 
0.066 
14 
0.034 
Peak Stress 
38.7 
137.0 
78.7 
183.5 
159.2 
134.0 
70.2 
14 
36.8 
Axial Strain at Peak 
0.002316 0.004349 
0.001641 0.005806 0.005614 
0.004665 
0.002521 
14 
0.001321 
Stress 
DTN: SNL22080196001.003 [DIRS 119042]. 
a 
The distance from the borehole collar (in feet) is given as part of the specimen identification number. 

Table 6.2.4.1-1. Chemistry Analysis of SHT Borehole 16-4 Waters with Reported In Situ Waters from 
the General Area 
6 
Suite 1 
5 
Suite 2 
2 
Suite 3 
8 
Suite 4 
Date 
(C) NA 46.9 47.6 51.20 
LLNL LLNL LLNL LLNL 
UZ-14 
PT-4 
SZ 
J-13 
Rainier 
Mesa 
SZ 
G-4 
Na (mg/L) 16 13.9 12.20 11.00 34.0 45.8 35 57 
Si (mg/L) 16.8 17.4 14.50 15.20 32.1 28.5 25 21 
Ca (mg/L) 13 9.76 8.65 7.70 27.0 13 8.4 13 
K (mg/L) 2.5 2.5 3.30 2.30 1.8 5 4.7 2.1 
Mg (mg/L) 1.63 1.16 1.01 0.92 2.1 2.01 1.5 0.20 
pH 6.2 6.9 6.80 6.55 7.4 7.5 7.7 
HCO3 (mg/L) 188 141.5 129 98 139 
F0.44 0.12 <0.5 <0.50 2.18 0.25 2.5 
Cl (mg/L) 2.54 1.45 1.00 2.20 6.7 7.1 8.5 5.9 
S (mg/L) 0.71 -0.20 0.21 
SO4 
21.83 0.42 <2 <2 14.1 18.4 15 19 
PO4 
3<0.03 <0.4 <2 <2 <10 
NO2 
<0.01 0.15 <2 <2 
NO3 
1.1 <0.4 <2 <2 14.5 8.8 
Li (mg/L) <0.03 <0.03 <0.01 <0.01 0.048 
B (mg/L) 0.37 0.74 0.66 0.93 0.134 
Al (mg/L) <0.06 <0.06 <0.06 <0.06 0.0 0.02 
Fe (mg/L) 0.74 0.13 0.30 0.03 
Sr (mg/L) 0.2 0.14 0.12 0.11 0.04 
Br<0.02 <0.4 <2 <2 0.1 
d D 101.7 99.6 97.3 98 103 
d 18O 12.9 12.9 13.4 13 13.8 
0.44 0.0 
87Sr/86Sr 0.7124 
BH 16-4 
SPC0052120 SPC0052124 SPC0052125 SPC0052223 
Collection 
11/25/96 02/04/97 02/27/97 05/22/97 
DCS Temp 
Perched 
Water Groundwater 
Fracture 
Water 
Groundwater 
(mg/L) 
(mg/L) 
(mg/L) 
(mg/L) 
(mg/L) 
(mg/L) 
Tritium 0.19 TU 
DTN: LL970101104244.027 [DIRS 158309]; LL970409604244.030 [DIRS 111481]; LL970703904244.034 [DIRS 
111482]; LL971006604244.046 [DIRS 148611]; GS951108312271.006 [DIRS 169244]. 
NOTE: All data in this table are considered unqualified and should only be used for corroborative purposes. 

Table 6.2.4.2-1. SHT Stellerite Abundance on Fractures, Preheating Drill Core ESF-TMA-MPBX-1 
Total number of fractures examined 75 
Number of fractures with stellerite 58 
Average percent coverage of fractures by stellerite 31% 
Drill hole characteristics: 7 m long, 0.5 dip toward bottom of hole (eastward) 
Core interval examined: 0 to 4.33 m, minus 0.49 m unrecovered or removed for thermal/mechanical measurements 
DTN: LA0009SL831151.001 [DIRS 153485]. 

TDR-MGR-HS-000002 REV 00 T6.2-25 September 2004 
Table 6.2.4.2-2. Summary Descriptions of SHT Natural-Fracture Mineral and Test-Product XRD Samples 
Sample 
Identifier Borehole 
Depth 
(ft) Description of sample 
LANL 3052, p1 1 2.3-2.4 Natural fracture coating. Centimeter-scale vapor-phase pocket with zeolite-cemented breccia. Sample is mostly 
zeolite, with some brecciated tuff. 
LANL 3054, p1 1 13.0-13.2 Natural fracture coating, ~0.1 mm thick, of microcrystalline zeolite, deposited directly on smooth, planar cooling-joint 
surface. 
LANL 3006, p1 16 16.5-17.0 Test products, small white mounds on original borehole surface with minor bedrock impurities, orientation of sample 
unknown. 
LANL 3004, 
SSL08p1 
16 15.5-16.5 Post-test sample, outermost 0.5 mm of original borehole surface, orientation of sample site unknown. 
LANL 3003 16 12.0-12.1 Test products, cohesive brownish particulate layer peeled from bottom of original preheating borehole. 
LANL 3000, 2 2.9-3.4 Test products, silica scale, maximum thickness 0.2 mm, on bottom of original borehole surface. Impurities of bedrock 
SSL02 and brownish particulates. 
DTN: LA0009SL831151.001 [DIRS 153485]. 
Table 6.2.4.2-3. Semiquantitative XRD Identification of SHT Natural-Fracture Minerals and Test Products 
Sample Identifier Borehole Depth (ft) Smectite Zeolite Amorphous Calcite Gypsum FeldsparTridymite Cristobalite Quartz Hematite Other 
Natural Fracture Minerals 
LANL 3052, p1 1 2.3-2.4 minor majora . . . minor . . major . . 
LANL 3054, p1 1 13.0-13.2 trace majora . . . . . . . . . 
Test Products 
LANL 3006, p1 16 16.5-17.0 . minor majorb major minor minor . . trace . minorc 
LANL 3004, SSL08p1 16 15.5-16.5 minor minor . minor minor major . major major trace major Al 
metal 
LANL 3003 16 12.0-12.1 trace trace . minor . major minor major major . . 
LANL 3000, SSL02 2 2.9-3.4 minor . minorb minor . major minor major major minor minor 
mica 
DTN: LA0009SL831151.001 [DIRS 153485]. 
a 
Stellerite. 
b 
Identified on the basis of XRD and SEM-EDX as opal-A.. 
c 
Unidentified mineral, possibly a sulfate-bearing phase. 
NOTE: Approximate limits of semiquantitative descriptors, all in weight %: major = >20%, minor = <20%, trace = <1%, . = not detected. 

INTENTIONALLY LEFT BLANK 

6.3 DRIFT SCALE TEST 
The Drift Scale Test (DST) is the third and largest of the in situ thermal tests planned and 
conducted to investigate coupled processes in the local rock-mass surrounding the repository. 
These coupled processes are thermally driven by heat released from electrical heaters that 
simulate heat from emplaced nuclear waste. A block of rock, approximately 60 m wide, 
50 m deep and 50 m high, includes 9 floor/canister heaters in a 5 m diameter drift and 50 wing 
heaters installed in horizontal boreholes drilled perpendicular to the drift into the rock. 
Numerous sensors located in the DST block measure thermal-hydrological-mechanical-chemical 
(T-H-M-C) behavior. The heating of the DST began on December 3, 1997, and continued 
through January 14, 2002. The test is ongoing, and is scheduled to continue throughout a 
planned 4-year cooling phase. A detailed description of the DST is provided in the following 
two reports: Drift Scale Test Design and Forecast Results (CRWMS M&O 1997 [DIRS 
146917]) and Drift Scale Test As-Built Report (CRWMS M&O 1998 [DIRS 111115]). 
DST Input DTNs are tabulated in Table 4-3. DST Summary DTNs are tabulated in Table 6.3-1. 
The general layout and plan view of the Exploratory Studies Facility (ESF) Thermal Test Facility 
(TTF) and DST area are shown in Figures 6.2-1 and 6.3-1. The configuration for the DST, as 
shown in Figure 6.2-1, includes a declining observation drift driven mostly east in a downward 
slope. The breakout, near the intersection of the ESF north ramp and main drift, is 2,827 m from 
the north ramp portal. The downward slope of the observation drift ensures a minimum 10 m of 
Tptpmn rock (Tertiary-Miocene (Age), Paintbrush (Group), Topopah Spring Tuff (Formation), 
Crystal-Poor (Member), Middle Nonlithophysal (Zone)) overlying the DST heated drift. The 
Tptpmn represents one of the three geologic units targeted to host the repository. The Auxiliary 
Testing Niche is located along the observation drift as shown in Figure 6.3-1. Although not 
denoted, the Data Collection System Niche is located at the far right of the observation drift as it 
is shown in Figure 6.3-1. 
Figure 6.3-1 shows that the DST includes a 47.5 m long, 5 m diameter heated drift. The heated 
drift is complemented by an 11 m long entry from the connecting drift of similar diameter. Other 
components include plate loading and Data Collection System (DCS) niches. Figures 6.3-2 
through 6.3-8 provide three-dimensional perspectives of the thermal, mechanical, hydrological, 
and chemical boreholes. Since some boreholes contain multiple types of sensors, only the 
primary usage of the borehole was highlighted. The boreholes are color coded to identify the 
wing heaters and the primary processes (T-M-H-C) measured in each of the 147 boreholes. The 
DST borehole numbering system begins at 42 because the initial 41 boreholes correspond to the 
Single Heater Test (which is co-located in the TTF). 
The as-built locations of the 147 boreholes drilled into the DST block are listed in Table 6.3-2. 
All coordinates are based on a local right-hand coordinate system in which 0,0,0 is the center of 
the bulkhead on the cool side. The positive X-, Y-, and Z-directions are generally northward 
(away from the observation drift), westward (away from the connecting drift), and upward, 
respectively. The last 12.5 meters of the heated drift (starting from Y = 35 m) is lined with 
concrete in order to evaluate the feasibility of concrete liner as ground support for waste 
emplacement drifts in the repository. 

The DST DCS recorded thermal, hydrological (partial), and mechanical data, for the most part 
on an hourly basis. The acquired data consists of both original (measured electronic values) and 
converted (engineering units) data. Seven packages of data were submitted to the Records 
Processing Center (RPC) and the following corresponding DTNs were obtained: 
 
LA9908FH6001WP.001 [DIRS 158319] 
 
LA0111FH831151.002 [DIRS 158317] 
 
LA0208FH831151.001 [DIRS 159515] 
 
LA0108FH831151.001 [DIRS 158316] 
 
LA0111FH831151.001 [DIRS 169386] 
 
LA0111FH831151.003 [DIRS 158318] 
 
LA0208FH831151.002 [DIRS 159308] 
These DCS DTNs are unqualified., These DCS DTNs identify Scientific Notebooks that provide 
details of measurements including calibration information. These DCS DTNs are reviewed and 
restructured and periodically submitted to the TDMS, resulting in many of the Input DTNs 
introduced below and listed in Table 4-3. As discussed in Section 1 and the introduction to 
Section 6, these Input DTNs are further refined, reduced, and restructured and then resubmitted 
to the TDMS as Summary DTNs (see Table 6.3-1). As mentioned in Section 6.1, the end user 
has access to three levels of data for DST thermal, hydrological (partial), mechanical 
measurements: DCS DTNs, Input DTNs, and Summary DTNs. 
6.3.1 DST Thermal Measurements 
The following sections present discussions on the power and temperature histories of the DST 
during the four-year heating phase. Discussion includes measurements of heater power and 
rock-mass temperatures, as well as parameters derived from laboratory and field measurements. 
Detailed discussion of DST power and thermal measurements is provided in Sections 6.2 and 8 
of Drift Scale Test Design and Forecast Results (CRWMS M&O 1997 [DIRS 146917]), Sections 
5.1.1, 6, and 9 of Drift Scale Test As-Built Report (CRWMS M&O 1998 [DIRS 111115]), and 
Sections 3 and 10.2 of Ambient Characterization of the Drift Scale Test Block (CRWMS M&O 
1997 [DIRS 101539]). The Input and Summary DTNs for DST power and thermal 
measurements are listed in Tables 4-3 and 6.3-1. 
6.3.1.1 Heater Power 
Heat was generated from 50 wing heaters and 9 floor (canister) heaters. These two types of 
electrical heaters had a combined power output of approximately 280 kW when operating at full 
capacity. The nine canister heaters were located in the center of the drift along a distance of 
approximately 47 m. The wing heaters were inserted in horizontal boreholes in the wall of the 
heated drift perpendicular to the longitudinal axis of the heated drift. These wing heaters were 
evenly distributed on 1.83 m spacings in boreholes located on both walls of the heated drift. 
Each wing heater had 10 m of heated length evenly divided between inner and outer heating 
elements of 1.145 kW and 1.719 kW capacity, respectively. 

Each of the nine canister heaters in the heated drift have 60 heating elements, only 30 of which 
were on at any given time. (The other 30 elements were backups.) To estimate the power 
supplied to each canister, the current being supplied to all the heating elements in a given 
canister was summed and the result multiplied by the canister heater voltage. Note that for the 
first 20 days of the test, only 28 heating elements in canister #8 were active. A 29th heating 
element was activated on day 20 and the 30th heating element on day 40. 
The DST wing heater, canister heater, and total power data may be found in the following Input 
DTNs: 
 
MO9807DSTSET01.000 [DIRS 113644] 
 
MO9810DSTSET02.000 [DIRS 113662] 
 
MO9906DSTSET03.000 [DIRS 113673] 
 
MO0001SEPDSTPC.000 [DIRS 153836] 
 
MO0007SEPDSTPC.001 [DIRS 153707] 
 
MO0012SEPDSTPC.002 [DIRS 153708] 
 
MO0107SEPDSTPC.003 [DIRS 158321] 
 
MO0202SEPDSTTV.001 [DIRS 158320] 
6.3.1.1.1 Results: Heater Power 
Because of the numerous DST power measurements, only representative discussion and graphics 
are provided. DST power measurements and graphics can be accessed in the Summary DTNs 
identified in Table 6.3-1. 
Figure 6.3.1.1-1 shows the total power applied to the wing heaters and the canister heaters, as a 
function of time. For the first 800 days, average total power to the wing heaters is approximately 
135 kW, average total power to the canister heaters is approximately 52 kW, and average sum of 
the wing and canister power is approximately 187 kW. The voltage applied to the wing and 
canister heaters is also recorded. Average wing and canister heater voltages have been quite 
stable at approximately 212 and 189 volts, respectively. 
For the first 820 days of the test, the power was nearly constant, dropping from an initial value of 
approximately 188 kW to approximately 178 kW. On March 3, 2000, the first of five intentional 
interim power reductions was implemented to maintain drift wall temperature near 200C (see 
temperature plot at drift crown in Figure 6.3.1.1-1). The fifth and final interim power reduction 
occurred on August 22, 2001. After these five interim reductions, the total power was 
approximately 140 kW, or approximately 75 percent of its initial level. On January 14, 2002, all 
heaters to the drift scale test were reduced to zero power. 
Of the 100 wing-heater elements, 5 failed. Both elements of wing heater 29 failed after 185 days 
of heating, the outer element of wing heater 26 failed after 211 days of heating, the outer element 
of wing heater 9 failed after 412 days of heating, and the outer element of wing heater 16 failed 
after 622 days of heating. 

6.3.1.1.2 Measurement Uncertainty: Heater Power 
The accuracy of the watt transducers used in measuring the heater power is conservatively 
estimated to be within 2 percent. Refer to Section 6.1.1.1.2 for additional discussion of 
uncertainty related to heater power. 
6.3.1.2 Temperatures 
Temperatures of the rock in the DST were measured from approximately 1,950 resistance 
temperature devices (RTDs). Temperatures elsewhere in the DST, including the heated drift, 
wing-heater boreholes, and MPBX boreholes, were measured with approximately 700 
thermocouples as described in Drift Scale Test As-Built Report (CRWMS M&O 1998 
[DIRS 111115]). Temperature boreholes in the DST were designed to ensure three-dimensional 
measurement of the thermal field. RTD sensors, which were used to measure rock-mass 
temperature, were bundled together with a uniform spacing of 30 cm between sensor tips. The 
spatial density of thermocouple sensors along an instrument borehole is higher in regions where 
greater thermal gradients are expected. The spatial density is also higher in regions where 
transition between dryout and condensation is expected to develop during the tests. 
The range of temperature in the DST depended on the location of the measurement and the 
duration of heating. The highest temperatures were encountered in the vicinity of the heat 
sources (i.e., wing heaters). In these regions, the range of temperature varied from ambient to 
about 300C. To properly cover the expected range of temperatures, sensors with the capability 
of measuring temperatures to at least 300C were used. RTDs and thermocouples are 
commercially available for the expected temperature range, and are reliable for long term 
monitoring. 
The heating-phase temperature data in the Summary DTN for approximately 1,950 RTDs are 
organized into individual EXCEL workbooks corresponding to each temperature borehole. Each 
workbook contains spreadsheets and charts. On one EXCEL spreadsheet, the data are organized 
with each RTD temperature history in each column in ten-day intervals for the duration of the 
heating phase. In general, there are approximately seventy RTDs for most of the temperature 
boreholes. Individual columns can be hidden or revealed for graphical display or usage. 
Another EXCEL spreadsheet in the workbook contains, for each temperature borehole, the 
coordinates for the respective temperature sensors. Two types of thermal graphs are developed 
in two separate charts. The first chart shows temperature history. The second chart shows 
temperature profiles as a function of a spatial coordinate at various times during the DST heating 
phase. These two types of graphics are intended to facilitate comparison with simulations for the 
validation of thermal-hydrological (TH) process models. 
The DST temperature data may be found in the following Input DTNs: 
 
MO9807DSTSET01.000 [DIRS 113644] 
 
MO9810DSTSET02.000 [DIRS 113662] 
 
MO9906DSTSET03.000 [DIRS 113673] 
 
MO0001SEPDSTPC.000 [DIRS 153836] 
 
MO0007SEPDSTPC.001 [DIRS 153707] 

 
MO0012SEPDSTPC.002 [DIRS 153708] 
 
MO0107SEPDSTPC.003 [DIRS 158321] 
 
MO0202SEPDSTTV.001 [DIRS 158320] 
6.3.1.2.1 Results: Temperatures 
Because of the numerous DST temperature measurements, only representative discussion and 
graphics are provided. DST temperature measurements and graphics can be accessed in the 
Summary DTN identified in Table 6.3-1. 
Figure 6.3.1.1-1 presents the temperature response for a single thermocouple (TC-19) located 
near the center of the heated drift during the heating phase of the DST. The temperature 
response at the drift wall follows an expected response, in that temperatures initially rise rapidly 
in response to switching on the heaters over a period of approximately 50 days. As time passes, 
the temperatures rise gradually, then the rate of rise decreases and the temperatures tend to 
remain flat as a result of the five interim power reductions during the final two years of the 
heating phase. After all heaters are switched off, the drift surface temperature, including TC-19, 
decreases rapidly. 
Thermocouples installed on the drift walls, at the drift crown (roof), and at the ribs (elevation of 
the wing heaters) recorded lower temperatures near both ends of the heated drift and higher 
temperatures at the mid-length of the heated drift. For a given distance along the heated drift 
length, temperature is consistently higher at the wing-heater elevation (about 3.9 m below the 
drift crown). Boreholes 79 and 80 are parallel to the heated drift (Figure 6.3-3) and at an 
elevation of approximately 10 m from the centerline of the DST, above the horizontal boreholes 
that house the wing heaters. The temperature profiles for boreholes 79 and 80 are presented in 
Figures 6.3.1.2-1 and 6.3.1.2-2, respectively. These temperatures are higher over the central part 
of the DST and lower over the unheated portion (the 11 m entry into the bulkhead of the heated 
drift). Also, note that the temperatures in borehole 79 are somewhat higher than those in 
borehole 80. This is because the elevation of borehole 79 could not be maintained during 
drilling because of its extreme length, causing it to be closer to the wing heaters than planned. 
There are two interesting thermal behaviors evident in borehole 79. The first is the tendency of 
the curves to flatten significantly at 96C, the boiling point of water at this elevation. This 
phenomenon occurs because the temperature rise pauses temporarily at the boiling point as the 
water in the rock vaporizes due to the latent heat of vaporization as water changes phase from 
liquid to gas. The other interesting thermal signature evident in borehole 79 is the temperature 
behavior near Y = 13 m (Figure 6.3.1.2-1). At subboiling temperatures, the rock near this 
location was substantially warmer than the rock on either side of it. Near the boiling point, the 
temperature profile was essentially constant, and at temperatures exceeding the boiling point, the 
rock near this location was somewhat cooler than the surrounding rock. This may be explained 
by the existence of a vertical fracture near this location. When the rock temperature was below 
boiling (i.e., the rock still contained liquid water), steam generated below this location (closer to 
the heater) may have been rising along the fracture, elevating the temperature of the rock near 
the fracture to levels exceeding those of adjacent rocks. At boiling, everything was isothermal 
for a while as water in the rock evaporated. After all the water in the rock had boiled off, the 
temperature of most of the rock started to increase again. Near the fracture, however, the 

temperature remained somewhat cooler than that of the surrounding rock. It may be that a lot of 
water condensed in this region when the temperature was subboiling, and additional heat was 
required to evaporate that water when the temperature in the vicinity of the fracture first reached 
and then exceeded the boiling temperature. Alternatively, the anomalous cool temperature near 
the fracture could reflect cool moisture flowing downward in the fracture toward the heated 
region. 
The other thermal DST boreholes were drilled radially away from the heated drift centerline at a 
fixed Y station. Figures 6.3.1.2-3 through 6.3.1.2-6 present temperature histories and 
temperature profiles for boreholes 158 and 164, respectively. Borehole 158 is orientated 
vertically up in the crown of the heated drift near its midlength. Borehole 164 is a horizontal 
borehole that parallels the wing heater boreholes. The temperature distribution shows the boiling 
phenomenon discussed above, as well as comparatively high rock temperatures characteristic of 
rock-mass in close proximity to the wing heaters. 
Figures 6.3.1.2-7 and 6.3.1.2-8 provide temperature contours after four years of heating in two 
respective planes: a vertical slice through the mid-length of the heated drift and a vertical slice 
through the longitudinal axis of the heated drift. These contours approximately describe the 
dryout zone, where temperatures exceed 96C, surrounding the heated drift. The dryout zone is 
estimated to be 24,000 cubic meters at the end of the four-year heating phase. Also shown are 
the areal extents of the temperature distributions in the DST block. The formation of these 
temperature contours from the Input DTNs included the application of AutoCAD software that 
evaluated temperature and location data at specific time intervals. Using this data, fitted curves 
or temperature contours were constructed for each point in time. Additional contours in these 
three planes for years one, two, and three are provided in the DST temperature Summary DTN. 
6.3.1.2.2 Measurement Uncertainty: Temperatures 
The uncertainty in DST temperature measurements involved both RTDs and thermocouples. 
The RTD was accurate within 0.3C (CRWMS M&O 1997 [DIRS 101540], Section 5.1). With 
consideration of other factors, such as the location of the RTDs, measured temperature in the 
DST by the RTDs was estimated to be accurate within 2C. The RTD bundles were grouted in 
the boreholes; consequently, some of the RTDs might not have had direct contact with the 
borehole wall. There might have been some time delay between the temperature variations in the 
rock and that measured by the RTDs, but it is believed that this time delay was small because the 
rock-mass was heated slowly. 
The thermocouple was accurate within 2.2C (CRWMS M&O 1997 [DIRS 101540], Section 
5.1). With consideration of other factors, such as location, the accuracy of the measured 
temperature in the DST by the thermocouples was estimated to be within 3.5C. 
6.3.1.3 Laboratory Parameter: Thermal Conductivity 
Thermal conductivity measurements on core samples were performed using the Guarded Heat 
Flow Meter test method (Brodsky et al. 1997 [DIRS 100653], pp. 11 to 14) as described in 
Section 3 of Ambient Characterization of the Drift Scale Test Block (CRWMS M&O 1997 
[DIRS 101539]). The apparatus functioned by placing a specimen between two heater plates 

controlled at different temperatures, producing heat flow through the specimen. A heat flux 
transducer (HFT) located between the specimen and one heater plate measured heat flow. Since 
this heat flux transducer is in series with the specimen and between both heater plates, the 
resulting temperatures on each side of the specimen, along with knowledge of the specimen 
thickness, allowed the thermal conductivity of the specimen to be determined. 
Two series of tests were performed to measure thermal conductivity. In the first test series, 
samples recovered from the DST block were tested over the temperature range of 30C to 300C. 
The test specimens were placed between two heater plates controlled at different temperatures, 
and the heat flow was measured. Radial heat flow losses were minimized by using a cylindrical 
guard heater. Moisture contents were either air dry (as received), oven dry, vacuum saturated, or 
partially saturated (intermediate between air dry and vacuum saturated). The moisture contents 
of the specimens tested as received were not indicative of in situ conditions. Laboratory 
specimens were cored under water and dried out in storage. In a second series of tests, the 
relationship between thermal conductivity and saturation was determined (SNL 1998 
[DIRS 118788]). Welded tuff was taken from Alcove 5 of the DST, and nonwelded tuffs from 
four lithostratigraphic units were obtained from three surface drill holes. Thermal conductivities 
were measured for six welded and six nonwelded specimens under dry, saturated, and 
approximately ten intermediate moisture conditions (SNL 1998 [DIRS 118788]). All thermal 
conductivity tests were conducted at 30C and at atmospheric pressure. 
The DST thermal conductivity data may be found in the following Input DTNs: 
SNL22100196001.006 [DIRS 158213] and SN0203L2210196.007 [DIRS 158322]. 
6.3.1.3.1 Results: Thermal Conductivity 
A complete listing of DST thermal conductivity for different temperatures and saturation is 
provided in the Summary DTN identified in Table 6.3-1. A small subset is presented in Tables 
6.3.1.3-1 and 6.3.1.3-2. 
The thermal conductivity data over a range of temperatures from 30C to 70C are summarized 
in Table 6.3.1.3-1. Thermal conductivity values were relatively uniform throughout the 
sampling volume. The mean thermal conductivities and standard deviations about the mean are 
given at each temperature. No temperature dependence is observed. Thermal conductivities 
ranged from 1.9 to 2.3 W/(m-K) with an average thermal conductivity of 2.1  0.1 W/(m-K) over 
this range of temperatures. 
The distribution of thermal conductivity results obtained at 30C provides a visual indication of 
the central tendency of the data. No analysis was performed to determine the best-fit distribution 
curve. Results show that the individual specimens with thermal conductivities farther than one 
standard deviation from the mean did not cluster in particular locations. The highest thermal 
conductivity, 2.3 W/(m-K), was obtained for HDFR1-97.5-C, which is from either the lower 
portion of the Tptpmn or the upper portion of the Tptpll unit. The mean thermal conductivity for 
each individual borehole was 2.1 W/(m-K). 
Results for the second series of tests in which thermal conductivities were determined for a range 
of saturation are illustrated in Table 6.3.1.3-2. A linear and commonly used nonlinear curve 

were fitted to the data and the goodness of fit determined. The linear relationship provides a 
better fit to the data, as indicated by the sum of the squared errors. 
6.3.1.3.2 Measurement Uncertainty: Thermal Conductivity 
The uncertainty in DST thermal conductivity is similar to that discussed for the SHT in Section 
6.2.1.3.2. 
6.3.1.4 Field Parameters (REKAThermal Conductivity and Thermal Diffusivity) 
A thermal probe was developed at the University of Nevada, Reno, to determine in situ thermal 
conductivity and thermal diffusivity. The probe is called Rapid Evaluation of K and Alpha 
(REKA); (K represents thermal conductivity; Alpha represents thermal diffusivity). REKA is a 
self-contained probe consisting of a heat source and 16 temperature sensors. During 
measurements, a small amount of heat, about 2 watts, was transferred to the rock, and 
temperature differences were measured. Assembled, a REKA probe is a rigid cylinder 
approximately 0.5 cm in diameter and about 60 cm in length. The REKA probe was grouted in a 
borehole of approximately 1.2 cm in diameter. The borehole had to be sufficiently straight to 
allow probe insertion. 
For characterization during the preheating phase, five locations were selected based on the 
competency of the wall rock at this site, including minimal fracturing, sufficient separation from 
rock bolts, and similarity of density (as determined by drilling rate). All five locations chosen 
for analysis appear to have similar characteristics based on these criteria. The boreholes were 
drilled in random directions to average the effects of unseen physical phenomena. Detailed 
discussion of the REKA measurements and methodology can be found in the following reports: 
Ambient Characterization of the DST Block (CRWMS M&O 1997 [DIRS 101539], pp. 10-4 to 
10-8) and Danko and Mousset-Jones (1993 [DIRS 134360]). 
During the heating phase, measurements were made in boreholes 151, 152, and 153 (see 
Table 6.3-2). The REKA thermal conductivity and thermal diffusivity data during the heating 
phase may be found in the following Input DTNs: 
 
LL980411004244.060 [DIRS 159107] 
 
LL980411104244.061 [DIRS 159111] 
 
LL980902104244.070 [DIRS 159109] 
 
UN0106SPA013GD.003 [DIRS 159115] 
 
UN0106SPA013GD.004 [DIRS 159116] 
 
UN0109SPA013GD.005 [DIRS 159117] 
 
UN0112SPA013GD.006 [DIRS 159118] 
 
UN0201SPA013GD.007 [DIRS 159119] 
6.3.1.4.1 Results: Field Thermal Conductivity and Thermal Diffusivity 
Results of thermal conductivity and thermal diffusivity measurements using the REKA probe 
during the preheating phase are taken from Section 10.2 of CRWMS M&O 1997 
([DIRS 101539]) and presented in Table 6.3.1.4-1 and Table 6.3.1.4-2. These results are shown 

for corroborative purposes to compare with the laboratory measurements presented in the 
previous Section 6.3.1.3. Table 6.3.1.4-1 shows the REKA evaluation results. The evaluation 
assumes that the rock-mass temperature is only affected by the REKA probes heater during the 
12-hour measurement period; therefore, no rock-mass background temperature correction was 
performed. Table 6.3.1.4-2 shows the REKA results assuming that the rock mass temperature 
changes with time during the 12-hour measurement period because of both the REKA probes 
heater, and some other heating or cooling effect, such as a change in the ambient temperature. 
6.3.1.4.2 Measurement Uncertainty: Field Thermal Conductivity and Thermal 
Diffusivity 
The REKA probe assumes the rock will behave in a homogenous, isotropic manner, which may 
not be the case. Nonetheless, its application is valid, and historical correlation of predicted and 
measured temperatures is good using in situ thermal properties. The accuracy of the measured 
thermal conductivity and thermal diffusivity is estimated to be about 5% using the REKA probe 
(CRWMS M&O 1997 [DIRS 146917]). 
6.3.2 DST Hydrological Measurements 
To assess the thermal-hydrologic processes in the DST, the spatial distribution and the temporal 
variations of the moisture content in the rock mass were monitored. Electrical resistivity 
tomography (ERT), ground penetrating radar (GPR), and neutron logging were used to monitor 
the moisture content. Air permeability was measured periodically to assess the changes in the 
fracture permeability during the test. Core samples collected from the DST region were tested in 
the laboratory for hydrologic properties such as porosity, density, and moisture retention curves, 
and electrical properties such as resistivity and relative permittivity. These will be presented in 
the following corresponding sections. 
6.3.2.1 Electrical Resistance Tomography (ERT) 
This section describes ERT surveys made during the DST heating phase to map the changes in 
moisture content caused by heating. Of particular interest are the formation and movement of 
condensate within the fractured rock mass. Figure 6.3-8 shows the location of the ERT 
boreholes in the DST. The ERT in the DST was conducted in four imaging planes: two vertical 
cross sections from the observation drift to the heated drift and two vertical planes along the axis 
of the heated drift. The two vertical cross sections from the observation drift to the heated drift 
are located at Y = 4.6 m, formed by boreholes 45 and 46, and at Y = 24.7 m, formed by 
boreholes 62 and 63. Borehole lengths are about 40 m. The two vertical planes along the axis of 
the heated drift include: one in the crown of the heated drift formed by boreholes 135, 145, 166, 
and 176; and one in the invert of the heated drift formed by boreholes 136, 146, 167, and 177. 
The two vertical planes along the axis of the heated drift cover a length of the drift from Y = 2.7 
m to 39.3 m. The borehole lengths are about 20 m in the crown and about 16 m in the invert. 
The electrode spacing in the DST ERT is about 1 m. The electrodes were grouted in the 
boreholes. 
Near the end of the heating phase, the vertical cross section image plane at Y = 24.7 m 
malfunctioned because of the increased contact impedance between the electrodes and the rock. 

Otherwise, the ERT functioned well. DST ERT data can be found in the TDMS under the 
following Input DTNs: 
 
LL000804023142.009 [DIRS 158325] 
 
LL990702704244.099 [DIRS 113872] 
 
LL980808604244.065 [DIRS 113791] (unqualified) 
 
LL980406404244.057 [DIRS 113782] 
 
LL980108804244.052 [DIRS 158332] 
6.3.2.1.1 Results: ERT 
The saturation estimates produced by data reduction model 2 (as presented in Section 6.1.2.1.1), 
which assumes that the primary pathway of the electrical current is through the double layer, are 
presented here. As examples of the DST ERT results, Figures 6.3.2.1-1 and 6.3.2.1-2 show the 
resistivity image as measured on January 10, 2000, at the end of the heating phase, and the 
saturation image produced from it, respectively. Images are presented as a ratio to the preheating 
baseline values. The vertical image planes along the longitudinal axis of the heated drift started 
at about 2.7 m from the bulkhead. The vertical cross section imaging plane intersects the heated 
drift at about 4.6 m from the bulkhead. These figures are examples of the ERT results in the 
DST. The rest of the ERT results can be found in the TDMS under the Input DTNs listed above. 
As shown in Figure 6.3.2.1-2, the drying of rock started in regions near the heaters. Tomograms 
for the different vertical planes along the heated drift indicate that the end effect is apparent at 
the bulkhead at Y = 0, but not as obvious at the far end of the heated drift. Aside from the end 
effects, the drying along the heated drift was uniform. Some localized increases of moisture 
were observed in regions both above and below the heated drift, but seemed to be more profound 
in the region below the heated drift. The vertical extent of the drying region near the wing 
heaters seemed to be greater than that near the floor heaters in the heated drift. This was 
probably a result of the greater heating effects in the wing heater plane than in the heated drift. 
6.3.2.1.2 Measurement Uncertainty: ERT Saturation Changes 
Based on laboratory calibration, ERT precision in determining water level saturation is about 10 
to 20 percent when the saturation level is below 40 percent, and 20 to 30 percent when the 
saturation level is greater than 40 percent (CRWMS M&O 1997 [DIRS 146917]) There are 
many factors that could contribute to the uncertainty in the estimated saturation changes in the 
rock mass by using ERT. The measurements of the voltage and current at the electrodes are 
fairly accurate. More importantly, saturation changes, estimated by ERT, are impacted by the 
following uncertainties: 
 
The accuracy of the temperature maps in the vertical cross section imaging planes near 
the observation drift is limited by the sparse coverage of the temperature sensors. Errors 
in the extrapolated temperature maps will result in erroneous saturation estimates. 
 
The other uncertainty factors that impact the ERT in general can be found in Section 
6.1.2.1.3. Interpretation of ERT results is aided when ERT is used in combination with 
other methods such as ground penetrating radar and neutron logging. 

6.3.2.2 Ground Penetrating Radar (GPR) 
The feasibility of the cross-hole radar profiling method to monitor the saturation changes due to 
thermal hydrological processes was proven for the Single Heater Test and discussed in Section 
6.2.2.2. The same data acquisition and data analysis methods discussed in 6.2.2.2 were applied 
to the DST. Detailed discussion of the data acquisition and data processing specific to the DST 
can also be found in three Level 4 Milestone reports (Peterson and Williams 1998 [DIRS 
159128]; Peterson and Williams 1998 [DIRS 159120]; Williams and Peterson 1998 [DIRS 
159121]). 
The radar data were acquired in ten boreholes (47 to 51, 64 to 68) as shown in Figure 6.3-6. 
These boreholes are collared from the observation drift and are the same boreholes used for 
neutron logging. These ten boreholes form two arrays of five boreholes each in two vertical 
planes. Cross-hole tomographic data were collected between adjacent borehole pairs (transmitter 
and receiver) using two acquisition modes: the Zero Offset Profile (ZOP) and Multiple Offset 
Profile (MOP) as discussed previously in Section 6.2.2.2. The severity of the borehole 
inclination in the borehole pairs 47-48 and 64-65, however, limited the data acquired between 
these boreholes to ZOP data only. Full MOP data coverage, necessary for subsequent 
tomographic processing, could not be accomplished. Since these borehole pairs represent data 
coverage that is far enough away from the heated drift intersection that few thermally induced 
changes in the radar data were anticipated, the impact of data acquisition limitation is minimal. 
GPR data were acquired in phases according to a schedule calling for measurements every 4 to 6 
months during the heating phase. 
After acquisition of Phase 1 data, the borehole temperatures became so great that the cables used 
in the measurements melted. It took many months to redesign and manufacture cables that were 
more heat resistant for Phase 2. Furthermore, owing to the extreme heat encountered in borehole 
67 (due to its proximity to a wing heater), accurate measurements could no longer be taken. 
Hence, all data acquisition for borehole pairs involving this borehole (66-67 and 67-68) was 
halted after Phase 5. However, because of the similarity in spatial positioning of the well pairs, 
the data acquired between well pairs 49-50 and 50-51 acted as sufficient proxy for the well pairs 
67-68 and 66-67. 
Radar wave travel times have been submitted to the TDMS periodically over the course of the 
experiment. The DTNs (referenced according to the phase numbers: PRE for Preheating; P1 for 
Phase 1 of heating) are listed as follows: LB990630123142.005 [DIRS 129274] (PRE, P1, P2, 
P3), LB000121123142.004 [DIRS 158338] (P4), LB000718123142.004 [DIRS 153354] (P5), 
LB0101GPRDST01.001 [DIRS 158346] (P6), LB0108GPRDST05.001 [DIRS 158440] (P7), 
and LB0203GPRDSTEH.001 [DIRS 158350] (P8, P9, P10). The XYZ coordinates of the 
transmitter and receiver positions were determined from the borehole collar and bottom as-built 
coordinates and are in Input DTN: LB990630123142.005 [DIRS 129274]. 
6.3.2.2.1 Results: GPR 
To perform the travel-time inversion, a 40 m  40 m field in each plane of boreholes was divided 
into a grid of 160  160 pixels producing a pixel dimension of 0.25  0.25 m, which corresponds 

to the antenna-station spacing of 0.25 meters. The multiplicity of source and receivers resulted 
in a dense sampling of the inter-borehole area; over 4,000 arrival times were available for each 
tomographic inversion. The inverted times produce the velocity fields for each of the 11 surveys 
(PRE, and P1 through P10). 
The velocity differences are highlighted by subtracting the travel time values between two 
successive surveys and inverting these differenced data. The P1 values are differenced from the 
PRE values, the P2 values are differenced from the P1 values, and so on, until P10 is differenced 
from the P9 travel times. Difference tomograms for the 51-50 and 50-49 well pairs are shown in 
Figure 6.3.2.2-1. The tomograms all show significant velocity increases and decreases. In 
general, radar velocities increase with water content decrease, as seen near the heated drift and 
the wing heaters. The derived tomograms are submitted under Summary DTN: 
LB0208GPRDSTHP.001, as identified in Table 6.3-1. 
6.3.2.2.2 Measurement Uncertainty: GPR 
Data uncertainty associated with picking the travel times and inversion errors are as discussed in 
Section 6.2.2.2.2 for the SHT. 
6.3.2.3 Neutron Logging 
Neutron logging is used to determine moisture content in rocks and soils. Neutron logging was 
conducted to monitor moisture content in boreholes 47 to 51, 64 to 68, 79 and 80 (see Figure 6.3-
6) during the DST. For the DST, Teflon tubes, with RTD bundles mounted on its the outside, 
were inserted into boreholes 79 and 80, and grouted into place. In the other neutron boreholes 
(47 to 51 and 64 to 68) a Teflon tube was grouted in the boreholes, without the RTDs. The 
Teflon tube permits easy insertion, placement, and removal of the tool, as well as preventing 
rockfall damage and loss of the tool. The neutron probe used for the preheating baseline 
measurements and the very early in-heat measurements of the DST was a Campbell Pacific 
Nuclear model 503DR, serial number H37067677, 3.81 cm (1.5 in.) diameter probe. Starting 
from February 1998, a probe (Comprobe model 1905-07EF, serial number 4751, 4.13 cm (1.625 
in) diameter) designed for operating at temperatures up to 200C became available, and was used 
in the DST for the remainder of the DST heating phase. To evaluate the possible impact of 
changing tools, the baseline measurement in borehole 47 conducted on October 27, 1997, using 
the Campbell Pacific tool, was compared with the Comprobe measurement in the same borehole 
on February 17, 1998. As shown in Figure 6.3-6, borehole 47 was one of the farthest neutron 
boreholes from the heaters. No moisture content change was expected in this borehole at this 
early stage of the heating. A relationship of Comprobe count =0.11387  CPN count was 
established to convert the Campbell Pacific counts to Comprobe counts. The DST neutron data 
can be found in the TDMS under the DTN: LL020710223142.024 [DIRS 159551]. 
6.3.2.3.1 Results: Neutron Logging 
A very small subset of the DST neutron results that reside at the TDMS are presented here. The 
neutron results are shown as the difference in fraction volume water content between the heating 
phase measurements and the preheating baselines. Therefore, in the following figures, a positive 
difference fraction volume water means gaining moisture content, and a negative difference 

fraction volume water means drying. To calculate water saturation, one can simply divide the 
fraction volume water content by the porosity. As an example of the DST neutron logging 
results, Figure 6.3.2.3-1 shows the difference fraction volume water in borehole 66 as a function 
of depth from the collar during the heating phase. Borehole 66 extends from the observation 
drift to above the heated drift at about 26.5 m from the bulkhead. This borehole is near the 
crown of the heated drift, but not close to the wing heaters. Figure 6.3.2.3-1 shows four 
snapshots of the difference fraction volume water content at about one, two, three, and four years 
of heating. The water content was virtually not changed at the end of the first two years of 
heating. During the third year of heating, the drying was most significant, both in spatial extent 
and amount of moisture loss. During the fourth year of heating, the moisture content in the dry 
region did not change much, but the dry region extended significantly. Neutron logging results 
in the DST showed that the moisture content in boreholes 47, 48, 64, and 65 did not change 
significantly during the four-year heating phase. The drying in a neutron borehole was a strong 
function of its distance to the heaters (either to the wing heaters or to the floor heaters in the 
heated drift). 
Figure 6.3.2.3-2 shows the relationship between volume water content and temperature based on 
neutron measurements from boreholes 79 and 80. This plot shows that the water content in the 
rock remains within 8 to 15 percent until temperatures near boiling are reached. Thereafter, 
significant reduction in water content occurs between 90C and 105C. 
6.3.2.3.2 Measurement Uncertainty: Moisture Content Determined by Neutron 
Logging 
The neutron tool was calibrated to the liner-grout and liner-RTD bundle-grout systems as used in 
the DST borehole. However, variations in the grout volume along a borehole, possibly caused 
by changes in the borehole diameter, breakout regions, etc., will introduce uncertainty in the 
measured results. One particularly severe case was in borehole 80, where the preheating baseline 
measurements were conducted before grouting and after grouting. The baseline measurements 
showed that the deepest 6 m section of the borehole was not grouted. Calibration results without 
grout were used for reducing the data in the ungrouted section of the borehole. The amount of 
grout in the region between the grouted and the ungrouted sections of the borehole (between 50 
and 53 m from the collar) was unknown. Therefore, the moisture content in that portion of the 
borehole is associated with a greater degree of uncertainty. 
The other factors that contribute to measurement uncertainty associated with neutron logging are 
as discussed in Section 6.2.2.3.2. 
6.3.2.4 Active Pneumatic Testing and Passive Hydrological Monitoring Measurements 
Preheating Air Injection 
Preheating characterization by air permeability tests was performed in DST boreholes as they 
became available for testing. The preheating air-injection tests provide an estimate of the 
fracture permeability in the test block and establish baseline values for tracking changes arising 
from thermally driven coupled processes. Single-hole air permeability tests were performed in 
November - December 1996, and in February - March 1997, in 14 boreholes (boreholes 45 to 48, 

51 to 53, 56 to 57, 69 to 70, 73, 75, and 78). Locations of these boreholes in the test block are 
shown in Figures 6.3-4, 6.3-6, 6.3-7, and 6.3-8. Pressure and flow data for these tests can be 
found in DTN: LB970600123142.001 [DIRS 105589] and are documented by Tsang and Cook 
(1997 [DIRS 100646]). In addition, 24 boreholes were tested in July 1997. These are boreholes 
158-167, 170174, and 176177 (Figure 6.3-3) intended for temperature measurements, and 
several wing heater boreholes (boreholes 98 to 100, 115 to 118). Pressure and flow data for the 
July 1997 tests can be found in DTN: LB980120123142.005 [DIRS 114134] and are documented 
by Tsang and Freifeld (1998 [DIRS 159097]). 
Heating Phase Air Injection 
For each of the 12 hydrology boreholes (57 to 61, 74 to 78, and 185 to 186, as shown in Figure 
6.3-4), a string of custom designed high temperature packers were installed to divide the 40 m 
long borehole typically into four isolated zones of approximately 8 m each. For boreholes 58 
and 77, only a string of three packers could be installed because of obstruction caused by fallen 
rocks from the fractures and lithophysal cavities. After installation of the pneumatic packer 
strings in the baseline, air permeability measurements were performed in the 46 isolated 
intervals. Air was injected at a constant flow rate in a zone isolated either by two packers or by a 
packer and the bottom of borehole, while the pressure responses in this and all other packed-off 
zones were monitored. The air-injection pressure and flow data from the hydrology boreholes 
prior to initiation of heating can be found in DTN: LB980120123142.004 [DIRS 105590] and 
are documented by Tsang and Freifeld (1998 [DIRS 105774]). After the collection of the initial 
DST preheating air-injection data, the entire process of selecting injection intervals was 
automated, using computer-controlled gas delivery manifolds installed near the collars of each 
cluster of boreholes. The new combination of hardware and software makes the entire process of 
air permeability measurement fully automated, allowing for more consistent collection of data 
with minimum need for onsite field personnel to oversee the testing. Detailed information on the 
setup of the air-injection equipment can be found in the report by Freifeld and Tsang (1998 
[DIRS 159098]). 
The DST active hydrologic testing program consists of periodic (approximately quarterly) air-
injection tests conducted in these same 46 isolated intervals in the 12 hydrology boreholes. 
These tests are to monitor the changes in the fracture permeability as a result of coupled 
processes. 
Periodic air-injection test data containing measured pressures and flow rates collected during the 
heating have been submitted to the TDMS under the following DTNs: 
 
LB980420123142.002 [DIRS 113706] 
 
LB981016123142.002 [DIRS 129245] 
 
LB990630123142.001 [DIRS 129247] 
 
LB000121123142.002 [DIRS 158337] 
 
LB000718123142.002 [DIRS 158341] 
 
LB0101AIRKDST1.001 [DIRS 158345] 
 
LB0108AIRKDST5.001 [DIRS 158438] 
 
LB980715123142.002 [DIRS 113742] 
 
LB0203AIRKDSTE.001 [DIRS 158348] 

Passive Hydrological Monitoring Data of Pressure, Temperature, and Humidity 
In addition to active air injection tests, passive monitoring of pressure, temperature, and humidity 
is being conducted on an hourly basis by the Data Collection System (DCS). Locations (XYZ 
coordinates) of these sensors can be found in DTN: MO0002ABBLSLDS.000 [DIRS 147304]. 
Because of the slow rate of change for these parameters, the data are parsed to 4 points per day 
by the DCS manager. This reduced data set is then reviewed and submitted in three data reports, 
containing time-stamped pressure, temperature, and humidity data. Each file contains a 
sequential list of data for all 46 monitored locations within the DST hydrology boreholes. 
Passive monitoring data for the heating phase of the DST can be found under the following Input 
DTNs: 
 
LB0401PRTDSTHP.001 [DIRS 169251] 
 
LB0401PRTDSTHP.002 [DIRS 169252] 
 
LB0401PRTDSTHP.003 [DIRS 169253] 
 
LB0401PRTDSTHP.004 [DIRS 169255] 
 
LB0401PRTDSTHP.005 [DIRS 169246] 
 
LB0401PRTDSTHP.006 [DIRS 169247] 
 
LB0401PRTDSTHP.007 [DIRS 169248] 
 
LB0401PRTDSTHP.008 [DIRS 169249] 
 
LB0401PRTDSTHP.009 [DIRS 169250] 
The Summary DTN is listed in Table 6.3-1. 
Gas Tracer Tests 
Tracer tests were performed in boreholes 75 and 76 to estimate fracture porosity in the test block. 
The gas tracer data can be found in DTN: LB980420123142.002 [DIRS 113706]. Estimated 
fracture porosity from the gas tracer data can be found in DTN: LB980912332245.002 [DIRS 
105593]. Freifeld and Tsang (1998 [DIRS 159098]) provide detailed discussion of this testing. 
Tracer tests were performed with the hardware and software used for performing DST quarterly 
air-injection tests, with additional hardware to perform the mixing of a tracer gas into the 
air-injection stream and to control and analyze gas withdrawn from an extraction interval. A 
Quadruple Mass Spectrometer Gas Analyzer was set up in the field to perform the quantitative 
analysis of tracer gas concentration in real time. 
6.3.2.4.1 Results: Active Pneumatic Testing and Passive Hydrological Monitoring 
Preheating Air Injection 
Steady-state analysis of the data was performed using Equation 5.1-1. Estimated permeability 
values from preheating characterizations conducted in NovemberDecember 1996 and 
FebruaryMarch 1997 are shown in Table 6.3.2.4-1. Estimated permeability values for the 24 
boreholes tested in July 1997 are shown in Table 6.3.2.4-2. Estimated preheating baseline 
permeabilities for the 46 isolated intervals tested in November 1997 are shown in 
Table 6.3.2.4-3. 

Heating Phase Air Injection 
The air injection test data collected during the heating phase that was submitted to the TDMS 
contained measured pressures and flow rates only. Pressure data appeared as absolute pressure. 
To estimate permeability for the injection interval, the pressure values measured prior to the start 
of the injection, and the steady-state value obtained late in the injection period, are used in 
Equation 5.1-1. 
Throughout the heating phase, changes in permeability as a ratio to baseline permeability 
estimates could be used to indicate changes in fracture liquid saturation. These are shown in 
Figures 6.3.2.4-1, 6.3.2.4-2, and 6.3.2.4-3 for boreholes 57 to 61, 74 to 78, 185 and 186, 
respectively. Permeability ratio as a function of time through the heating phase for the packed-
off zones in the hydrology boreholes as shown in these Figures are the content of Summary 
DTN: LB0208AIRKDSTH.001. 
Changes in the borehole 185-2 permeability can be used to demonstrate the use of these figures 
in interpreting changes in fracture saturation throughout the DST. As shown in Figure 6.3.2.4-3, 
the borehole 185-2 permeability gradually declined from its baseline value. This decrease in air 
permeability indicates a gradual buildup in fracture liquid saturation during the heating phase of 
the DST. 
As heating of the test block continued, many air-injection tests showed responses that were 
considered anomalous. Most of the unusual behavior was attributable to two-phase processes, 
such as vapor condensation or evaporation. An anomalous response to an air injection was 
observed in borehole zone 60-3. The unusual response was attributed to the injection of cool dry 
air into a saturated hot environment. In these cases, the data cannot be used for the estimation of 
formation permeability, because no meaningful steady state values are obtained. 
Another type of anomalous response was observed during air injection into 78-4. In this test, 
borehole zones 78-1, 78-2, and 78-3 all recorded decreases in pressure. This is counter-intuitive, 
since mass is being added to the system and pressure should increase. However, the observed 
pressure declines are the result of cold gas being transported in the 78-4 injection tube which 
needs to go through the sealed-off packer intervals 78-1, 78-2, and 78-3. This cooling can lead 
to condensation of vapor in these zones and thereby reduces pressure during the injection test. 
The failure of some of the pneumatic packers as heating progresses is another factor affecting 
analysis of the DST air-injection tests. Because a deflated packer changes the injection interval 
length, the data collected from the zones before and after the packer deflates were not amenable 
to comparison with the baseline data. Hence, the estimated permeabilities for zones next to 
deflated packers were not amenable to comparison with baseline permeability values. The 
deflated packers and the dates that they became deflated are shown in Table 6.3.2.4-4. 
Passive hydrological monitoring data of pressure, temperature, and humidity 
For this report, the passively monitored hydrology data for the heating phase from December 
1997 through January 14, 2002, were assembled by appending the data files from each data 
submittal together and collecting a subsample of data points. These are submitted as Summary 

DTN LB0208H2ODSTHP.001. As an example, Figure 6.3.2.4-4 shows the temperature data for 
the sensors located in borehole 75. 
Gas Tracer Tests 
Three convergent weak dipole flow field tracer tests were performed between boreholes 75 and 
76 in the DST. Air with a sulfur hexafluoride tracer was injected into borehole 76, and gas was 
withdrawn from borehole 75 for analysis. Gas tracer tests in the DST area were conducted in 
boreholes 75 and 76, zones 2 and 4. Two different-strength dipoles were used in zone 2, 10:1 
and 30:1. A 10:1 dipole was used to test zone 4. The strength of the dipole refers to the ratio of 
withdrawal gas flux to injected gas flux. The data for each test is provided in DTN: 
LB980420123142.002 [DIRS 113706]. 
The injection air and withdrawal gas flow rates and zone pressures were monitored prior to the 
injection of any tracer to ensure that a steady-state flow field was achieved. After a steady state 
pressure field was obtained, the air-injection flow rate was reduced to 0.90 of the original value. 
A makeup gas stream of tracer equal to 0.10 of the original injection air stream was added from a 
10,000 ppm cylinder of SF6. The final injection gas stream had a concentration of 1,000 ppm 
SF6. After a limited injection period, the injection of tracer was halted, and the injection air 
stream was returned to its original flux rate. Throughout the entire duration of the experiment, 
the withdrawal gas stream was maintained at a steady flux rate, and SF6 concentration 
measurements were performed by the mass spectrometer every 30 seconds. 
6.3.2.4.2 Measurement Uncertainty: Active Pneumatic Testing and Passive 
Hydrological Monitoring Measurements 
Since the same types of measurements were performed for the SHT, readers are referred to the 
discussion of the SHT in Section 6.2.2.4.2. Measurement uncertainty in analysis has been 
considered. For example, although the estimate of air permeability may not be as accurate as 
desired because of the assumptions involved, restricting the use of only the ratio of permeability 
to its respective preheating value, while keeping all other experimental parameters identical 
throughout the test, minimizes the impact of measurement uncertainty. 
6.3.2.5 Laboratory Hydrological Parameters 
Laboratory testing of saturation, porosity, bulk density, particle density, and gravimetric water 
content were conducted for both dry drilled cores and wet drilled cores from the DST block at 
Alcove 5 of the ESF. The measurements were carried out according to the Technical 
Implementation Procedure (TIP) YMP-LBNL-TIP/AFT 2.0. Data can be found in the TDMS 
under DTNs: LB970500123142.003 [DIRS 131500] and LL020506123142.021 [DIRS 169256]. 
Similar to those discussed in Section 6.2.2.5 for the SHT, moisture retention curves were 
measured at elevated temperatures to about 94C for samples taken from the DST block. In 
preparation for the moisture retention measurements, the dry bulk density, saturated bulk density 
and porosity for these samples were determined. The moisture retention curves and the related 
densities and porosity data measurements have been documented by Lin et al. (2002 
[DIRS 159099]). 

In addition to the above, electrical resistivity and relative permittivity were also measured as a 
function of water saturation at 35C, 50C, 70C, and 95C, over a range of frequency from 10-2 
to 106 Hz. These properties are useful for the processing of geophysical imaging data. The 
measurements were made using either a HP4274A LCR meter, a HP4284A LCR meter, or a 
Solartron 1260 frequency response analyzer. Measurements made over a range of frequencies 
verify measurements made at a single frequency and provide additional information about 
conduction mechanisms and microstructural parameters. The electrical property data can be 
found in the TDMS under DTNs: LL981109904242.072 [DIRS 118959] and 
LL020502523142.020 [DIRS 159105]. Reporting can be found in Section 11.1 of Drift Scale 
Test As-Built Report (CRWMS M&O 1998 [DIRS 111115]). 
6.3.2.5.1 Results: Laboratory Hydrological Parameters 
Saturation, Porosity, Density, and Gravimetric Water Content 
The data from two sets of core measurements are tabulated in Table 6.3.2.5-1 for the dry-drilled 
cores and in Table 6.3.2.5-2 for the wet-drilled cores from the DST area. Summaries of the 
averages and standard deviations of the measured values are presented at the end of each table to 
facilitate comparison between different data sets. The first data set in Table 6.3.2.5-1 is based on 
the cores from boreholes 182, 183, and 184 dry drilled from an elevated platform at the end of 
the connecting drift across from the DST block. Included in the second set in Table 6.3.2.5-2 are 
wet-drilled cores from boreholes 52, 53, 56, and 81 within the DST block. 
The average saturation value compiled from all surface-based boreholes for Topopah Spring 
crystal-poor middle nonlithophysal tuff (266 samples) is 8512 percent (Flint 1996 
[DIRS 100673]). The average value for the dry-drilled cores is 84 percent, and that for the wet-
drilled cores is 93 percent. The corresponding surface-based borehole porosity value is 112 
percent, as compared to the average values from 11 percent for dry cores to 13 percent for wet 
cores. Therefore, the 11 percent difference in liquid saturation between the dry-drilled and the 
wet-drilled data sets in the thermal test area is within the standard deviation of 12 percent for all 
the surface-based samples. 
Moisture Retention Curves 
Identical to the procedures discussed in Section 6.2.2.5, moisture retention curves were measured 
for core samples taken from boreholes 52 (CHE-1), 53 (CHE-2), 56 (CHE-5), 69 (CHE-6), 70 
(CHE-7), and 73 (CHE-10), whose locations are shown in Figure 6.3-6. In preparation for the 
moisture-retention measurements, hydrological properties were measured. 
Moisture-retention curves of the DST samples were performed at temperatures of 25.1C, 
49.6C, and 93.7C. Similar to the SHT data (Section 6.2.2.5), there is very little hysteresis 
observed between the wetting and drying curves at all temperatures. The temperature cycle has a 
very small effect on moisture retention. The posttemperature cycle room temperature data show 
a slightly smaller moisture retention than the initial room temperature data. 
The DST samples show less moisture retention than the SHT samples (Section 6.2.2.5) at all 
temperatures. However, they show greater moisture retention than that of USW G-4 (Roberts 

and Lin 1995 [DIRS 159100]; 1995 [DIRS 159048]) and the Fran Ridge samples (Section 
6.1.2.5). The data of the DST samples are at the high end of the results of the USW H-1 samples 
(Section 6.1.2.5). The data of the DST samples are at the lower bound of that shown by Flint 
(1998 [DIRS 100033]). 
Electrical Resistivity and Relative Permittivity 
Resistivity measurements are reported for one frequency, 1 kHz, because this frequency was 
determined to be free of electrode contamination (contact impedance) and represents the 
electrical properties of the material. Relative permittivity measurements are reported at 1 MHz, 
the highest frequency in the measurements. Samples were prepared from cores obtained from 
chemistry boreholes 69, 70, and 73 of the DST (Figure 6.3-6). Samples with obvious large 
cavities and inhomogeneous inclusions were avoided. Prior to the electrical property 
measurement, hydrological properties were obtained (DTN: LL981109904242.072 [DIRS 
118959]). The samples are disk-shaped, with a diameter to thickness aspect ratio of 10:1 (dime 
shaped). The diameter of the samples is approximately 5.1 cm. All samples were prepared with 
the bedding direction perpendicular to the direction of measurement. 
Electrical measurements began on samples that were dry. Water from well J-13 was added to the 
samples in small amounts and allowed to distribute throughout the sample. The length of time 
for this to occur was typically 3 to 4 hours, as verified by examining the resistivity of a sample as 
a function of time. Saturations were determined by weighing the samples immediately after 
electrical measurements were completed. Each sample was placed in a custom built holder made 
of Lucite or Lexan and separated from the atmosphere by an o-ring seal. Despite these 
precautions, water was sometimes lost from samples when measurements at relatively high 
saturations were attempted at high temperatures. The holders were placed in a standard oven and 
allowed time to equilibrate to the temperature (typically overnight). Upon reaching maximum 
saturation, the drying portion of the measurements began. The maximum saturation achieved 
was between 95 percent and 100 percent. Some samples were damaged (chipping and cracking) 
because of the cooling and heating, and the handling. Those samples were reshaped when 
necessary and the holders modified to accept the new shape. Samples were no longer used when 
indicators, such as noise in the data or mechanical flaws, demonstrated that the electrical-
properties measurements were unreliable. 
Figure 6.3.2.5-1 shows the electrical resistivity of the DST samples as a function of water 
saturation in the drying cycle at 50C. This is just one example to illustrate the variation of 
electrical resistivity with water saturation. The rest of the resistivity data can be found in the 
TDMS. The characteristics of the variation of resistivity with water saturation at other 
temperatures are similar. This type of resistivity saturation dependence is similar to that 
observed for other tuff samples. For all temperatures, the dry resistivity is between 107 and 108 
.m and drops rapidly to between approximately 3,000 and 1,000 .m (depending on 
temperature) as saturation increases. This is interpreted as an indication that the adsorption of 
water and surface conduction dominate this region of saturation. At approximately 30 percent 
saturation, there is a change in the slope of log s versus saturation. Between 30 percent and 100 
percent saturation, the resistivity decreases by only  to one order of magnitude. 

A small amount of hysteresis is observed between wetting and drying cycles. There are small 
increases in resistivity during the wetting phase, similar to previous measurements utilizing 
distilled water as the saturating fluid (Roberts and Lin 1997 [DIRS 101710]). 
Figure 6.3.2.5-2 shows the relative permittivity of the DST samples as a function of water 
saturation in the drying cycle at 50C. This example illustrates the variation of the relative 
permittivity with water saturation. The rest of the permittivity data can be found in the TDMS 
under the DTNs listed above. At low saturations, permittivity is insensitive to temperature. The 
dry samples all have a dielectric constant (relative permittivity) between five and six. The near-
saturated samples have a range of values between 22 and 26. This range of relative permittivity 
values at one temperature is fairly typical above approximately 40 percent saturation for all 
temperatures. The scatter in the data increases as temperature increases and is particularly bad 
for the 70C wetting cycle above approximately 60 percent saturation. One possible explanation 
for the scatter in the data is that capacitance measurement noise at the highest frequencies of 
measurement (up to 1 MHz) increases with temperature. 
6.3.2.5.2 Measurement Uncertainty: Laboratory Hydrological Parameters 
Saturation, Porosity, Density and Gravimetric Water Content 
The main source of error for saturation measurement is in the estimate of the weight of water 
condensed in the walls of the core container. This is evaluated by absorbing the water from the 
container with a paper cloth and weighing the cloth. When large amounts of fragments and 
powder are observed on the surfaces of the container, this measurement overestimates the water 
loss because it includes the weight of fine solids. Although the reason for this physically 
meaningless value of saturation over 100 percent is understood, there is no clearly better 
measurement to arrive at a more accurate value. Observations of factors that may potentially 
affect the results are included in footnotes to Table 6.3.2.5-2. This soft information forms the 
basis for distinguishing cores that yield reliable weight measurements from cores that give 
potentially abnormal and inaccurate measurement. Discussions in Section 6.3.2.5.1 also indicate 
that the liquid saturation of the wet-drilled cores can differ from that of the dry-drilled cores by 
11 percent. The difference may be attributed in part to different drilling methods and in part to 
spatial heterogeneity. 
Moisture Retention Curves 
Section 6.2.2.5.2 contains a discussion of the measurement accuracy and data uncertainty in 
moisture-retention measurements. 
Electrical Properties 
The accuracy of the instruments for the electrical property measurement was within 5 percent at 
the highest impedance limits (greater than 100 M.). Each instrument was checked using a set of 
1 percent tolerance resistors and capacitors. The instruments were found to yield consistent 
results. Sample variations, as can be seen on the data, are greater than the instrument error. 
There were some uncertainties in the water saturation level during the measurement, especially at 
elevated temperatures and high saturation levels. Anisotropy in the electrical properties was not 
assessed for the DST samples. During the measurements, the path of the electric current was 

perpendicular to the bedding plane of the rock, which was not well established. Obvious 
heterogeneity in the test samples was avoided. The heterogeneity may cause great variation in 
electrical properties. 
6.3.2.6 Heat and Mass Flow through the Bulkhead 
The following discussion involves in-depth and unplanned investigations of heat and mass flow 
through the DST bulkhead. The subject matter was discussed in a white paper entitled Heat 
and Mass Flow Through the Bulkhead in the Drift Scale Test (Pannell 2001 [DIRS 159514]). 
The white paper satisfied an agreement (TEF 2.1) reached between DOE and the U.S. Nuclear 
Regulatory Commission (NRC) at the January 2001 Technical Exchange on Thermal Effects on 
Flow. The white paper covers both measurements and modeling. A brief summary will be 
presented here pertaining only to the measurements. These measurements were conducted for 
informative and complementary purposes and are not intended to be a requisite for the 
understanding of heat and mass loss through the bulkhead. The bulkhead separating the hot side 
of the heated drift from the unheated section is not completely sealed because bundles of power 
cable and instrument wiring pass through the bulkhead (CRWMS M&O 1998 [DIRS 111115], 
pp. 8-2 and 8-5), and the bulkhead is set against uneven and fractured rock. 
The issue of heat and mass loss through the DST bulkhead has been ongoing since the design of 
the DST, a design in which the primary purpose of the bulkhead was to act as a thermal barrier 
(CRWMS M&O 1996 [DIRS 101375], pp. 3-17 and 3-18) as well as a personnel safety barrier. 
Preheating numerical simulations of the DST resulted in concerns about unmonitored heat and 
mass loss through the thermal bulkhead (Buscheck and Nitao 1995 [DIRS 100657]). 
Recommendations included isolating the DST heated drift from direct pneumatic interference 
with the ESF tunnel system. This precaution was in itself problematic, since personnel safety 
concerns would develop if the pressure within the DST heated drift were allowed to increase. 
On December 3, 1997, the heating of the DST was initiated. Within 40 days of the start of 
heating, moisture started to flow out of the bulkhead, as evidenced by condensation on various 
surfaces on the cool side of the bulkhead. This behavior was consistent with the heating of a 
large volume of rock that is highly fractured and approximately 90 percent saturated. As water 
in the rock boiled and turned to steam, the vapor moved under pressure gradient into cooler 
rocks, as well as into the heated drift and through the bulkhead. Also, the observed wetting on 
the cool side of the bulkhead alternated with drier conditions, with the latter coinciding with low 
relative humidity readings in the heated drift. Upon investigation, it appeared that barometric 
pumping was the cause for the intermittent wetting. Gas phase flow from the rock to the heated 
drift is driven by pressure gradient. Superimposed on the positive pressure gradient from the 
rock to the heated drift are the barometric pressure fluctuations. Therefore, as barometric 
pressure decreased, more vapor flowed from the rock into the heated drift and out the permeable 
bulkhead, increasing the relative humidity in the heated drift. Conversely, as the barometric 
pressure increased, less vapor flowed from the rock into the heated drift and the relative humidity 
decreased. Indeed, the relative humidity measurements in the heated drift vary inversely with the 
barometric pressure. 
Between July 1998 and May 1999, several measurements of conductive and convective heat loss 
through the bulkhead were performed (CRWMS M&O 1998 [DIRS 159512], p. 3-1; 1999 [DIRS 

154585]; 1999 [DIRS 159513]). A summary listing of field efforts to address the issue of mass 
and heat loss through the bulkhead is provided below: 
(1) 
Determination of conductive heat flux by applying a heat-flux meter to seven 
locations on the bulkhead (five measurement locations were steel and two were glass) 
(2) 
Estimation of convective heat loss by considering how much water vapor was 
removed from a small diameter pipe in the bulkhead during a 60 minute sampling 
period 
(3) 
Attempt to utilize the relative humidity data in the cool side of the bulkhead from the 
Moisture Monitoring Program to estimate the moisture loss from the DST. However, 
the operational ventilation flow rates (between 50 and 150 million liters per hour) 
imposed just outside of the heated drift were too large to allow a direct measurement 
of changes in the monitored humidity data. 
As mentioned above, these measurements were conducted for informative and complementary 
purposes. For example, these measurements provided much insight into the difficulty of 
obtaining useful measurements of conductive and convective losses. Problems with obtaining an 
accurate measurement of conductive losses as attempted in item (1) involved the irregular and 
multiple-material surface of the bulkhead. Complications with measuring convective heat losses 
in items (2) and (3) mainly stemmed from the intrinsic difficulty of measuring a highly 
heterogeneous moisture and heat flux from a diffuse source. Also, considerable uncertainty was 
involved in item (2) because it was not possible to reasonably estimate the fraction of moisture 
loss captured in the measurement system as a result of the inherent leakage through bundles of 
power cables and instrument-wiring pathways. 
After the white paper was prepared (which references measurements (1) and (2) above) , the 
thermal test team initiated a final field experiment to determine whether a heat and mass 
measurement was feasible. The basic approach involves measuring the temperature and the 
relative humidity, on the cool side of the heated drift, as a function of time and discrete spatial 
locations. Then the integral moisture increase in the drift volume on the cool side of the 
bulkhead was used to estimate the mass loss from DST convective heat flow. This measurement 
is nontrivial because of the substantial ventilation on the cool side of the bulkhead and the 
limitations of relative humidity measuring devices. In the July 2001 scoping study, the measured 
temperature and relative humidity in 38 installed Rotronic HygroClip relative humidity 
temperature sensors were used to estimate the changes in vapor mass and energy. The 
preliminary estimates of heat loss (for nonrepresentative conditions because the airflow from 
the ventilation system was necessarily reduced) yielded a total heat loss of approximately 0.5 to 
2.6 kW. This is at least one order of magnitude less than what was expected from the numerical 
modeling of the DST. This final experiment demonstrated that the vapor loss through the 
bulkhead of the heated drift was too complex to measure directly. 
6.3.3 DST Mechanical Measurements 
The discussion of mechanical measurements for the DST has been divided into several 
subsections based on the type of measurement: 

 
Multipoint borehole extensometer (MPBX) displacement data 
 
Cross-drift extensometers (CDEX) displacement data 
 
Strains measured on the inner surface of the cast-in-place liner 
 
Acoustic emission 
 
Laboratory parameters such as elastic modulus, Poissons ratio, and thermal expansion 
for intact rock and concrete 
 
Plate loading test 
 
Additional measurements, including rock scaling and acoustic emissions 
Detailed discussion of the mechanical measurements is documented in Section 6.3 in Drift Scale 
Test Design and Forecast Results (CRWMS M&O 1997 [DIRS 146917]), in Section 5.1.2 of 
Drift Scale Test As-Built Report (CRWMS M&O 1998 [DIRS 111115]), and in Sections 4 and 8 
of Ambient Characterization of the Drift Scale Test Block (CRWMS M&O 1997 [DIRS 
101539]). DST mechanical measurement Input and Summary DTNs are listed in Tables 4-3 and 
6.3-1, respectively. 
6.3.3.1 Multipoint Borehole Extensometers (MPBX) 
Figure 6.3.3.1-1 shows the layout of the MPBX boreholes. The as-built location coordinates of 
the collars and anchors are provided in Table 6.3-2. Displacements reported in this document 
followed the convention of extension being positive. Displacements were measured within the 
rock-mass surrounding the heated drift and between the heated drift and the observation drift. 
These measurements were used to evaluate numerical models related to T-H-M coupling as well 
as to provide data for determination of rock-mass thermal expansion. MPBXs were installed in 
17 boreholes both within and outside the heated drift to monitor rock-mass movement during the 
DST. 
Two of the MPBXs (designated ESF-HD-81-MPBX1 and ESF-HD-82-MPBX2, with 81 and 82 
referring to the borehole numbers) were installed in two long horizontal boreholes drilled parallel 
to the heated drift from the connecting drift. Twelve MPBXs (MPBX3 through MPBX14) were 
installed in three four-borehole arrays (numbers 147 to 150, 154 to 157, and 178 to 181) drilled 
into the surrounding rock-mass from within the heated drift itself. The array containing MPBXs 
3, 4, 5, and 6 (boreholes 147 to 150) is located in the heated drift at Y = 13.7 m; the array with 
MPBXs 7, 8, 9, and 10 (boreholes 154 to 157) is located at Y = 21.0 m; and the array with 
MPBXs 11, 12, 13, and 14 (boreholes 178 to 181) is located at Y = 41.1 m, in the concrete liner 
test section of the heated drift. For the three MPBXs in each array collared in the crown of the 
drift, the four anchors for each were located nominally at 1, 2, 4, and 15 m from the collar. For 
the fourth MPBX in each array, which was collared at the top of the invert, the anchors were 
installed so as to put them in the same relative position in the surrounding rock mass as the other 
MPBXs (i.e., approximately 2.2, 3.2, 5.2, and 16.2 m from the collar). 

The remaining three borehole MPBXs were drilled for sequential drift mine-by monitoring. 
These MPBXs were installed in November-December 1996 in boreholes 42, 43, and 44, drilled 
slightly downward from the observation drift toward the heated drift. Boreholes 42, 43, and 44 
are located at heated drift stations 0+13.7, 0+20.8, and 0+32.2 m, respectively (each station 
refers to the Y-axis distance from the heated drift bulkhead). Refer to Section 5.2 for discussion 
related to the approach used to smooth the MPBX measurements. 
The displacement data may be found in the following Input DTNs: 
 
SNF39012298002.002 [DIRS 159114] 
 
SN0203F3912298.033 [DIRS 158361] 
 
SNF39012298002.010 [DIRS 158367] 
 
SN0001F3912298.014 [DIRS 153841] 
 
SN0007F3912298.018 [DIRS 158374] 
 
SN0101F3912298.024 [DIRS 158400] 
 
SN0107F3912298.029 [DIRS 158408] 
 
SNF39012298002.006 [DIRS 158419] 
The displacement data corrected for thermal expansion may be found in the following Input 
DTNs: 
 
SNF39012298002.012 [DIRS 153840] 
 
SNF39012298002.008 [DIRS 153839] 
 
SN0203F3912298.035 [DIRS 158363] 
 
SN0001F3912298.016 [DIRS 153842] 
 
SN0007F3912298.020 [DIRS 158388] 
 
SN0101F3912298.026 [DIRS 158402] 
 
SN0107F3912298.031 [DIRS 158413] 
 
SNF39012298002.004 [DIRS 153837] 
The thermal expansion of carbon fiber and Invar rods is found in Input DTN: 
SNL22100196001.003 [DIRS 111068]. 
6.3.3.1.1 Results: MPBX Displacements 
Because of the abundance of DST MPBX displacements, only representative discussion and 
graphics are provided. All MPBX displacement data and graphics can be accessed in the 
Summary DTN identified in Table 6.3-1. 
The following discussion provides a cross section of MPBX measurements of displacements 
within the DST block. The displacement plots have been smoothed by the procedure discussed 
in Section 5.2, with each plot representing the maximum (or minimum) over a 10 day period. 
MPBX1 is located in borehole 81, which runs parallel to and is collared outside the heated drift. 
This borehole is on the north side of the drift (the anchor is located in the Data Acquisition 
System niche). A time history plot of smoothed, temperature-corrected displacement is shown in 
Figure 6.3.3.1-2. The overall performance of this MPBX1 is very good; there is very little noise, 

and the data for the heating phase of the DST show thermal-mechanical responses consistent 
with elastic model predictions. MPBX7 is located at Y = 21.0 m in borehole 154 anchored in the 
crown of the heated drift, and angled 30 from the vertical towards the north (away from the 
observation drift). A time history plot of smoothed, temperature-corrected displacement is 
shown in Figure 6.3.3.1-3. The overall quality of the data from MPBX7 is good, although the 
data are very noisy because of the temperature oscillations from moisture recirculation. The 
level and frequency of noise make this data useable only for evaluating general thermal-
mechanical behavior, and not determination of specific events. Two interesting observations 
may be made about the displacement data: (1) the displacement at anchor 3 is much less than 
might be expected from elastic analyses; and (2) the displacements shown for anchors 1 (1 m 
from the collar) and 4 (15 m from the collar) are much closer to each other than would have been 
expected. 
MPBX8 is located at Y = 21.0 m in borehole 155, anchored in the crown of the heated drift, and 
angled 30 from the vertical towards the south (towards the observation drift). A time-history 
plot of smoothed, temperature-corrected displacement is shown in Figure 6.3.3.1-4. The overall 
quality of the displacement data from MPBX 8 is good. The biggest disappointment for this 
borehole was the loss of its TC-1, which required using the corresponding TC-1 from MPBX9 
for the reference temperature. (MPBX9 is vertically up, whereas MPBX7 is located at the mirror 
position opposite MPBX8. The thermocouple from MPBX9 was originally chosen because its 
data were cleaner than MPBX7, and the typical values were about the same.) There are two 
sources of moisture-induced noise: (1) temperature fluctuations in borehole 155 (days 300-500), 
for which the displacement data reflect real thermal-mechanical response; and (2) at later times 
(after day 800), fluctuations of MPBX9-TC-1, which introduce artificial noise into the 
conversion and thermal correction of MPBX8 data. Some evidence of moisture-related 
temperature oscillation is seen at other TCs for MPBX8. A large temperature perturbation event 
for all the TCs at days 475 to 545 (3/23/1999 to 6/1/1999) is similar in nature and timing to 
temperature events for MPBX9, as well as farthest sections of MPBX12 and 13, located 20 m 
further down the drift. This event may indicate connectivity between these four boreholes. The 
LVDT for Anchor 3 apparently failed on day 1247 (5/2/2001). 
MPBX9 is located at Y=21.0 m in borehole 156 anchored in the crown of the heated drift, and 
angled vertically upward. A time-history plot of smoothed, temperature-corrected displacement 
is shown in Figure 6.3.3.1-5. The displacement data from anchors 2, 3, and 4 of MPBX9 are 
good. The displacement data from anchor 3 level off unexpectedly (that is, when compared with 
an elastic model) at around 500 days. The biggest surprise is the onset of large scale moisture-
induced temperature perturbations, which eventually affect all the TCs except those already near 
boiling. MPBX10 is located at Y=21.0 m, anchored in the top of the invert of the heated drift, 
and angled vertically downward. A time history plot of smoothed, temperature-corrected 
displacement is shown in Figure 6.3.3.1-6. The displacement data for MPBX10 are anomalous 
for all the anchors: anchor 1 failed early in the test; anchor 2 is erratic for the first year, then 
looks good for the remainder of the test; anchor 3 is erratic throughout the entire test; and anchor 
4 has regions of good data interspersed with large-sale noise that is not moisture-induced 
(because the TCs are clean throughout the test). Because of the erratic nature of the MPBX10 
data, it is hard to identify any events that may be related to microseismic phenomena. 

6.3.3.1.2 Measurement Uncertainty: MPBX Displacements 
The uncertainty of the DST MPBX measurements is similar to comparable SHT MPBX 
measurements, as discussed in Section 6.2.3.1.2. As shown in Table 6.3.3.1-1, the gage range 
and accuracy of the LVDTs for the MPBXs are  25.4 mm and 0.5 percent, respectively. 
6.3.3.2 Cross-Drift Extensometers 
Two cross-drift extensometers (CDEXs) were installed in the section of the heated drift with a 
cast-in-place concrete liner to measure cross-drift convergence. Convergence meters CDEX-1 
and CDEX-2 were located nominally at approximately Y = 42.3m (between the eighth and ninth 
canister heaters). CDEX-1 measures vertical closure, and it is anchored in the top of the invert 
of the heated drift and to the crown of the liner. CDEX-2 measures horizontal closure and is 
anchored to the liner on each rib. As for the MPBXs, displacements from the CDEXs reported in 
this document follow the convention of extension being positive. 
The cross-drift extensometer data may be found in the following Input DTNs: 
 
SNF39012298002.002 [DIRS 159114] 
 
SN0203F3912298.033 [DIRS 158361] 
 
SNF39012298002.010 [DIRS 158367] 
 
SN0001F3912298.014 [DIRS 153841] 
 
SN0007F3912298.018 [DIRS 158374] 
 
SN0101F3912298.024 [DIRS 158400] 
 
SN0107F3912298.029 [DIRS 158408] 
 
SNF39012298002.006 [DIRS 158419] 
The cross-drift extensometer data corrected for thermal expansion may be found in the following 
Input DTNs: 
 
SNF39012298002.012 [DIRS 153840] 
 
SNF39012298002.008 [DIRS 153839] 
 
SN0203F3912298.035 [DIRS 158363] 
 
SN0001F3912298.016 [DIRS 153842] 
 
SN0007F3912298.020 [DIRS 158388] 
 
SN0101F3912298.026 [DIRS 158402] 
 
SN0107F3912298.031 [DIRS 158413] 
 
SNF39012298002.004 [DIRS 153837] 
The thermal expansion of carbon fiber and Invar rods is found in Input DTN: 
SNL22100196001.003 [DIRS 111068]. 
6.3.3.2.1 Results: Cross-Drift Extensometers 
A time history plot of smoothed, temperature-corrected displacement from extensometers 
CDEX-1 and CDEX-2, is shown in Figure 6.3.3.2-1. In general, ovalization takes place during 
the heating phase in which horizontal closure and vertical extension occur. This deformation 

reflects increasing horizontal stresses as temperatures increase during the heating phase. Vertical 
stresses tend to remain constant during heating, since in an elastic regime their magnitudes are 
limited by the overburden. 
6.3.3.2.2 Measurement Uncertainty: Cross-Drift Extensometers 
There are several potential sources for measurement uncertainty in the displacement 
measurements presented in Section 6.3.3.1.2 and 6.2.3.1.2 for the MPBXs. Much of that same 
discussion pertains as well to the CDEXs. The only exception to that discussion would be any 
effects caused by being inside a borehole, which obviously the CDEXs are not. The gage range 
and accuracy of CDEX-related instrumentation are presented in Table 6.3.3-6 in Section 6.3.3.1. 
6.3.3.3 Strains 
Strain gages were installed on the surface of the cast-in-place (CIP) concrete sections located at 
the west end of the heated drift to monitor the concrete behavior during heating and cooling of 
the DST. A total of 45 four-inch-long Karma foil resistive strain gages were installed in fifteen 
rosettes (three gages per rosette) in a circumferential-axial-45 pattern at three Y stations. The 
five strain gage rosettes at each station were located at the crown, to the left and right above the 
springline, and to the left and right near the concrete invert; this layout is shown in Figure 
6.3.3.3-1. The rosette strain gages are designated by rosette number and orientation (AXL=axial, 
CIR=circumferential, DIA=diagonal); for example, ESF-HD-RSG-5-AXL is the axial strain gage 
for rosette number 5. In addition to the 45 strain gages (15 rosettes) bonded to the CIP liner, 
there were five additional strain gages bonded to concrete and 304 stainless steel coupons 
placed near Canister Heater 8 in the heated drift. These coupons are prisms of concrete and 
steel that are used to provide baseline data on the strain-gage response and some indication of 
unconstrained concrete material response. Gage and anchor locations (as-builts) for strain-gage 
measurements made for the DST are presented in DTN: SNF38040197001.001 [DIRS 159130]. 
Refer to Section 5.2 regarding the approach used to smooth the strain measurements. 
The strain data may be found in the following Input DTNs: 
 
SN0203F3912298.034 [DIRS 158362] 
 
SNF39012298002.011 [DIRS 158368] 
 
SNF39012298002.007 [DIRS 158365] 
 
SN0001F3912298.015 [DIRS 158372] 
 
SN0007F3912298.019 [DIRS 158387] 
 
SN0101F3912298.025 [DIRS 158401] 
 
SN0107F3912298.030 [DIRS 158409] 
 
SNF39012298002.003 [DIRS 158417] 
The strain data corrected for thermal expansion may be found in the following Input DTNs: 
 
SN0203F3912298.036 [DIRS 158364] 
 
SNF39012298002.009 [DIRS 158366] 
 
SNF39012298002.013 [DIRS 158369] 
 
SN0001F3912298.017 [DIRS 158373] 

 
SN0007F3912298.021 [DIRS 158391] 
 
SN0101F3912298.027 [DIRS 158407] 
 
SN0107F3912298.032 [DIRS 158414] 
 
SNF39012298002.005 [DIRS 158418] 
6.3.3.3.1 Results: Strains 
Because of the abundance of DST strain data, only representative discussion and graphics are 
provided. All strain data and graphics can be accessed in the Summary DTN identified in 
Table 6.3-1. 
Figure 6.3.3.3-2 shows a time history plot of the strains measured by the axial, circumferential, 
and diagonal strain gages on the liner surface, respectively. The strain gages placed on the 
concrete liner and on unconstrained concrete samples (not shown here) in the heated drift 
indicate the combined effects of thermal expansion, dehydration-induced shrinkage, and 
mechanical stress imposed by the interaction of the concrete with the heated rock surrounding 
the drift. The results from the strain gages on the unconstrained samples exhibit behavior 
indicative of drying shrinkage caused by dehydration, a phenomenon seen elsewhere in 
engineering literature. 
The circumferential, or hoop, strains begin as compressive strains, as the surrounding rock 
expands inward and compresses the liner. The axial and diagonal strains are nearly always in 
extension, because there is far less interference with thermal expansion of the liner in the axial 
direction. All of the strain gages on the liner surface went into extension by approximately day 
325 on account of combined thermal and mechanical effects. A mechanical component of the 
strain can be estimated by subtracting the strains measured from the unconstrained coupons (the 
thermal component) from the total strains. The mechanical component of the circumferential 
strain gages on the liner consistently shows that the crown of the liner is in compression, while 
the rest of the liner experiences smaller magnitudes of compression and tension. Note in the 
strain plots the beginning of the creep degradation of the epoxy beginning at around 950 days. 
Thermal expansion coefficients for T>96C have been estimated for the unconstrained concrete 
coupons that lay on the floor of the heated drift. The coupons reveal some very interesting 
information regarding the thermal expansion of concrete at elevated temperatures. The data 
reveal four distinct temperature regimes, each with its own characteristics for the thermal 
expansion coefficient a: 
1. 
T<100C, fast temperature rise : 812 e/C 
2. 
T<100C, slow temperature rise : approximately 0 due to coincident drying shrinkage 
3. 
100C<T<165C : 1014 e/C 
4. 
T>165C: 3137 e/C 
This behavior is within the same range as to the laboratory thermal expansion data for SHT and 
DST intact rock samples (SNL 1997 [DIRS 117471]). When the strain for each coupon is 
plotted as a function of temperature, the coupons all exhibit a precipitous change in slope (i.e., 
thermal expansion) at about 165C. In another interesting development, hysteresis in the strain 
data can be observed when temperature drops due to power outages. 

6.3.3.3.2 Measurement Uncertainty: Strains 
The following list includes all the known sources of measurement uncertainty for the strain data: 
Quantifiable 
 
The accuracy of the instrumentation itself. The gage range and accuracy of strain gage-
related instrumentation are presented in Table 6.3.3.3-2. 
 
The conversion of the electrical output to engineering units. The uncertainty from these 
equations, and the computational (round-off) error inherent in the DCS data conversion 
software, are negligible. 
Nonquantifiable 
 
Electrical interference, such as spurious signals from power surges, can cause low-
magnitude noise, unexplained meandering in the data, or high-magnitude spikes. 
 
Problems caused by elevated temperature leading to epoxy degradation. 
6.3.3.4 Acoustic Emission 
Passive seismic monitoring was used to monitor changes in acoustic emission (AE) activity and 
wave propagation characteristics. Microseismic events can be attributed to cracking of the rock 
or movement along preexisting fractures or joints from thermal expansion. The methods, 
concepts, and instrumentation that were developed and tested in the early 1980s at the Climax 
Stock spent nuclear fuel test (Majer and McEvilly 1985 [DIRS 159101]) were closely followed 
here for the DST. The microseismic monitoring measurements were governed by Technical 
Implementing Procedure YMP-LBNL-TIP/TT 4.0, Rev. 1 Mod. 0). Detailed discussions of 
experimental set-up and data processing can be found in three level 4 milestones (Peterson and 
Williams 1998 [DIRS 159102]; Williams et al. 1998 [DIRS 159104]; Williams and Peterson 
1998 [DIRS 159121]). 
Sixteen accelerometers were placed in DST boreholes 138 to 140, 142 to 144, 159 to 161, 163 to 
165, 171, 172, 174, and 175 (see Table 6.3-2). There were two different types of sensors 
depending on maximum temperature rating: Wilcoxin Research Model 793-6 (rated to 150C) 
and Model 728-T (rated to 125C). These were selected based on anticipated temperatures from 
preheating modeling. All ratings are at least 20C higher than the maximum temperature 
anticipated. The sensors were connected to the Data Collection Shed by high-temperature 
(Teflon) coaxial wire so that sensor measurements could be recorded. The desired bandwidth 
was in the 1,000 to 10,000 Hz range. Data recordings of the microseismic activity in the test 
block have been submitted to the TDMS periodically over the course of the heating phase under 
the following Input DTNs: 
 
LB980120123142.007 [DIRS 158352] (for background measurements) 
 
LB980420123142.004 [DIRS 113717] (for time period 01/1998 to 03/1998) 
 
LB000121123142.005 [DIRS 158339] (for time period 12/1998 to 10/1999) 

 
LB000718123142.005 [DIRS 158343] (for time period 10/1999 to 03/2000) 
 
LB0101ACEMDST1.001 [DIRS 158344] (for time period 04/2000 to 07/2000) 
 
LB0108ACEMDST5.001 [DIRS 158437] (for time period 09/2000 to 06/2001) 
6.3.3.4.1 Results: Acoustic Emissions 
Although the monitoring system was designed to operate continuously over the duration of the 
experiment, numerous problems occurred. Because of high-voltage noise spikes conducted 
along the accelerometer coaxial connections, the acquisition system initially was plagued by 
false triggering memory buffer errors. Efforts to reduce these problems were finally completed 
by December 1998, a full year after initiation of the heating phase. Enhancements to the 
recording system (bandpass filters) resulted in greatly improved data quality (i.e., increased 
signal/noise) starting in late December 1998. From this period until late October 2000, the 
system recorded microseismic events at a roughly uniform rate. After October 2000, however, a 
period of very low activity followed. Although deterioration in accelerometer sensitivities 
(resulting from thermal exposure, corrosive fluids, etc.) may be one potential cause for the 
decrease in recorded activity, the system was judged to be operating properly during this time, 
according to the accelerometer and recording system check procedures detailed in YMP-LBNL-
TIP/TT 4.0, Rev. 1, Mod. 0. 
The data recorded in the seismic monitoring consist of the microseismic waveform and the time 
and date that it was recorded. To determine the location of the source of energy causing the 
seismic event, the data were processed as follows. The first arrival times were determined by the 
arrival of the initial burst of energy at each of the 16 monitoring station. After the first arrival 
times are picked, the location of the seismic energy source can be estimated by inversion. Figure 
6.3.3.4-1 shows the locations of all the seismic events (collapsed to the yz plane) through the 
heating phase. The data in the TDMS contain the following: 
EVENT#: Represents the sequential order in which the acoustic emission/microseismic 
event was recorded by the recording system 
DATE: Represents the date on which the event was recorded 
TIME: Represents the time when the event was recorded 
X(M): Represents the X coordinate for the located event 
Y(M): Represents the Y coordinate for the located event 
Z(M): Represents the Z coordinate for the located event 
OTIME(MS): Represents the origin or zero time or first-arrival time of the event by the 
recording system 
ERROR: Root Mean Square (RMS) error in travel time 
AMPLITUDE: Represents the amplitude of the recorded event 

6.3.3.4.2 Measurement Uncertainty: Acoustic Emissions 
Hammer blows to the wall of the observation drift are periodically recorded during the 
experiment. These data are included with transmittals to the TDMS and represent the primary 
means by which system repeatability and, in a sense, measurement error is assessed. Because the 
hammer blows always occur at the same location along the observation drift wall, the 
postprocessing of the hammer event should result in the proper spatial locating of this event. 
However, given the greatly elevated accuracy of locating events within the array of 
accelerometers, the hammer blows are not an ideal means of measurement error assessment: the 
hammer blow occurred outside of the array. Therefore, comparing the location of the hammer 
blow events over time should result in consistent locations within some reasonable error 
envelope. The acceptable envelope was determined to be a 2  2  2-meter region. The actual 
microseismic events should have a much higher degree of accuracy because they fall within the 
array boundaries. Postprocessing of the microseismic events also results in the determination of 
a RMS error in the seismic-wave travel times. This error may be used to assess the accuracy of 
the resulting microseismic event location. 
6.3.3.5 Laboratory Mechanical Parameters 
Several preheating laboratory investigations were done to gather intact rock mechanical and 
thermal-mechanical properties/parameters of the TSw2 middle nonlithophysal tuff in the DST 
area, and to assess the concrete used in the invert and liner in the heated drift. This section 
describes the results of the following three suites of laboratory testing of parameters. 
 
Thermal expansion of intact rock (Input DTN: SN0203L2210196.007 [DIRS 158322]) 
 
Elastic constants and strength properties of intact rock (Input DTN: 
SNL02100196001.001 [DIRS 158420]) 
 
Elastic constants and strength properties of concrete samples (Input DTN: 
SNL23030598001.001 [DIRS 158370]) 
Detailed discussions of rock parameters are presented in Section 4 of Ambient Characterization 
of the Drift Scale Test Block (CRWMS M&O 1997 [DIRS 101539]). 
6.3.3.5.1 Results: Thermal Expansion 
The mean coefficients of thermal expansion (MCTEs) are summarized in Tables 6.3.3.5-1 and 
6.3.3.5-2 for heating and cooling, respectively, during the first thermal cycle. The mean MCTEs 
and standard deviations about the mean are given at each temperature for each borehole. 
Summary data for the entire test suite are given with standard deviations and 95 percent 
confidence limits at the bottom of each table. The data obtained during the first heating cycle 
show similar behavior for most MCTEs. With the exception of three, most specimens show 
steep increases in MCTE, beginning at approximately 200C and continuing until approximately 
300C. This steep increase is attributed to phase changes in the silica mineral phases because of 
the presence of cristobolite and tridymite. The increase in MCTE at elevated temperatures is not 
attributed to thermally induced fracturing or differential expansion, since these behaviors would 
not be significant during the second heating phase. The test data indicates sharp increases for 
both sets of heating/cooling cycles. The decrease in MCTE at 300C suggests that the phase 

changes have been completed. Also, hystereses are linked with phase changes. The three 
specimens showed behavior different from the remainder of the suite partly because of different 
concentrations of cristobolite and tridymite. These minerals vary substantially from their 
respective mean values for two of the three samples that exhibited anomalous behavior. Two of 
these specimens (MPBX2-85.0-B and MPBX1-40.4) appeared to initiate phase changes below 
200C, and one specimen (HDFR1-97.9-B) appeared to undergo essentially no phase change. 
6.3.3.5.2 Results: Elastic Constants and Strength Parameters of DST Intact Rock 
The experimental data for the 16 specimens tested in unconfined compression are summarized in 
Table 6.3.3.5-3. Mean values, standard deviations, and 95 percent confidence limits are given in 
Table 6.3.3.5-3 for Youngs modulus, Poissons ratio, unconfined compressive strength, and 
axial strain at peak stress. One specimen, MPBX1-1.0-A (test UCDST001), was unloaded after 
force began to drop at approximately 53 MPa. The specimen was later reloaded (test 
UCDST017) to a peak stress of 179 MPa. Data from the first loading of this specimen were used 
to calculate the mean elastic moduli to be consistent with the other tests. Data from the second 
loading were used in calculations of mean unconfined compressive strength and mean axial 
strain at peak stress. 
Youngs modulus ranged from 28.9 GPa to 43.1 GPa, with a mean value of 36.8 GPa. The 
standard deviation was  3.5 GPa, and the 95 percent confidence limit was  1.7 GPa. The high 
Youngs modulus value (43.1 GPa) corresponds to the first loading of MPBX1-1.0-A. Because 
this specimen was unloaded at a low stress difference, the modulus was calculated over a lower 
stress range than for the other specimens. 
Poissons ratio ranged from 0.17 to 0.34, with a mean value of 0.20. The standard deviation was 
 0.04, and the 95 percent confidence limit was  0.02. The three specimens with the highest 
Poissons ratios were the only specimens that had preexisting open fractures. 
Strengths ranged from 71 MPa to 324 MPa, with a mean value of 176 MPa. The standard 
deviation was  66 MPa, and the 95 percent confidence limit was  32 MPa. The highest and 
lowest strengths were obtained on specimens from MPBX2 that were in relatively close 
proximity (4 m apart). Neither specimen had notable surface features that might indicate 
anomalous behavior. No analyses were performed to determine the best fitting distribution 
curves for Youngs modulus, Poissons ratio, or unconfined compressive strength. 
6.3.3.5.3 Results: Elastic Constants and Strength Properties of Cast-in-Place Concrete 
Samples 
Six concrete specimens were tested to failure in unconfined compression, and four specimens 
were cycled to approximately 40 percent of the failure strength. Mean values and standard 
deviations of unconfined compressive strength, Youngs modulus, and Poissons ratio are given 
in Tables 6.3.3.5-4 and 6.3.3.5-5 for reinforced and nonreinforced concretes, respectively. 
Separate Poissons ratio values are given for the two (0 and 90) radial gages. Average failure 
strengths were 56.6  3.2 MPa for reinforced concrete and 54.3  13.8 MPa for nonreinforced 
concrete. When an outlier was removed, the failure strength for nonreinforced concrete was 
increased to 62.2  0.9 MPa. Mean Youngs modulus (determined during all loading cycles) was 

33.3  2.1 GPa for the reinforced concrete and 38.8  3.9 GPa for the nonreinforced concrete. 
Mean Poissons ratio (also determined during all loading cycles) was 0.25  0.03 for the 
reinforced concrete and 0.24  0.04 for the nonreinforced concrete. 
6.3.3.5.4 Measurement Uncertainty: Laboratory Mechanical Parameters 
The uncertainty in the unconfined compressive test of rock and concrete includes the accuracy of 
the load cell, the accuracy of the LVDT, specimen alignment, changes in the specimen cross 
section area during the test, specimen variation, and anisotropy of the rock. Among these 
factors, the greatest uncertainty is with the specimen variation. The heterogeneity in the rock-
mass will have significant effects on its compressive strength and moduli. Many of these 
uncertainties also apply to thermal expansion and creep testing of intact samples. In addition, 
temperature and stress control contribute to uncertainties in thermal expansion and creep testing, 
respectively. 
6.3.3.6 Field Mechanical Parameters 
The following mechanical field measurements are presented: 
 
Plate loading test 
 
In situ stress 
 
Rock-mass thermal expansion. 
6.3.3.6.1 Results: Plate Loading Test 
The Plate Loading Tests (PLTs) were conducted as part of the DST. The purpose of the PLT 
was to obtain rock-mass elastic-modulus measurements under ambient and hot conditions for the 
middle nonlithophysal tuff. Two earlier tests were conducted in 1998, after which design 
changes were made to ensure a stiffer loading frame for improved measurements. These 
improved measurements, from the October 2000 test, are summarized in Table 6.3.3.6-1. A 
detailed discussion of the setup, testing procedure, raw test data, and rock-mass modulus 
calculation from the raw data may be found in the documentation for two Input DTNs: PLT 
(2000) Displacement and Pressure Data (SN0011F3912298.022 [DIRS 158392]) and PLT (2000) 
Rock Mass Modulus Data (SN0011F3912298.023 [DIRS 158399]). 
6.3.3.6.2 Results: In Situ Stress Measurements 
A series of five successful hydraulic fracturing tests, used to determine in situ stress states, were 
conducted. The measured in situ stress state is small, which is consistent with the dominant local 
normal faults. The north-northeastern maximum horizontal stress direction is subparallel to the 
average strike of these faults and is supported by previous measurements in the Yucca Mountain 
area. Detailed discussion is presented in Unconfined Compression Tests on Specimens from the 
Drift Scale Test Area of the Exploratory Studies Facility at Yucca Mountain, Nevada (SNL 1997 
[DIRS 117471]) and in Section 10.4 of the Ambient Characterization of the DST Block 
(CRWMS M&O 1997 [DIRS 101539]). 

6.3.3.6.3 Results: Rock Mass Thermal Expansion 
Rock mass thermal expansion has been calculated from the DST in situ heating phase data, 
including temperature change for a given axial length from ambient, gage length, and measured 
thermal displacement over the gage length. The rock mass thermal expansion coefficient was 
calculated for the DST using selected data from displacement measurement boreholes 81 and 82. 
These boreholes run roughly parallel to the heated drift, and extend over a distance of 45 m. 
Much of that distance is in a high temperature region of relatively constant temperature. A 
discussion of the thermal expansion coefficient data reduction process may be found in the 
documentation for Summary DTN: SN0208F3912298.039. 
Table 6.3.3.6-2 lists the rock mass thermal expansion coefficients calculated from the DST 
MPBX data from boreholes 81 and 82. It also lists intact rock values from laboratory 
measurements made on DST and SHT samples. These intact rock values are used for 
comparison with rock-mass values and are identified in the following DTNs: 
SNL22080196001.001 [DIRS 109722], SNL22080196001.003 [DIRS 119042] and 
SN0203L2210196.007 [DIRS 158322]. Below boiling, the average rock-mass coefficient ranges 
from approximately 2.0 to 4.5  10-6/C, approximately half of the intact values. As the 
temperatures approach 200C, the rock mass coefficient values approach the intact values, with a 
maximum average rock-mass coefficient of 12.55  10-6/C in the highest temperature range. 
The calculated values for rock mass thermal expansion are, as expected, lower than the values 
from intact laboratory specimens, because of the ubiquitous presence of vertical fractures in the 
Tptpmn tuff. The fractures would tend to accommodate some of the thermal expansion in the 
joint stiffness, particularly during early heating, because the thermal displacement would be 
insufficient to mechanically close fractures. Also, the three-dimensional effects of heated rock 
bounded by lower temperature rock would decrease the net effect of thermal expansion by 
resisting the thermal displacements in adjacent volumes of rock. 
6.3.3.6.4 Measurement Uncertainty: Field Mechanical Parameters 
Measurement uncertainties are numerous because of the various types of measurements. The 
uncertainty of the MPBX measurements used for the plate loading tests and for determination of 
rock mass thermal expansion coefficients are similar to comparable SHT MPBX measurements, 
as discussed in Section 6.2.3.1.2. As shown in Table 6.3.3.1-1, the gauge range and accuracy of 
the LVDTs for the MPBXs are 25.4 mm and 0.5 percent, respectively. The type K 
thermocouples installed with the MPBXs and the plate loading test have a typical range 
maximum of 1280C and accuracy of  2.2C. Pressure transducers used for the PLT had a range 
of up to 69 MPa (10,000 psi) with a reported accuracy of 0.5 percent of the full range. In situ 
stress measurements obtained from hydraulic fracturing were accurate to within 14 percent, 
based on instrumentation and displacement measurement accuracies. Fracture mapping and rock 
mass classification are subject to uncertainties based on interpretation of the observed fractures 
in the field. Additionally, for all the field parameters, subjective interpretations, high-pressure 
complications, fracture spacing, fracture aperture, and inelastic time-dependent deformation 
represent primary uncertainties. 

6.3.4 DST Chemical Measurements 
This section presents chemical data that have been collected from the DST and intended for the 
validation of thermal-hydrological-chemical processes by numerical modeling. The following 
sections will discuss, respectively, aqueous chemistry (6.3.4.1), gas chemistry and isotopic 
compositions (6.3.4.2), mineralogical and petrologic analyses (6.3.4.3), strontium and uranium 
isotopic compositions of water samples (6.3.4.4), and special investigations of waters with high 
fluoride concentrations (6.3.4.5). 
6.3.4.1 DST Aqueous Chemistry 
Water samples have been collected periodically during the heating phase from multiple locations 
throughout the DST block, and analyzed in the laboratory for concentrations of metals, anions, 
and certain isotopes. Aqueous sampling is conducted from boreholes instrumented to include 
water and gas sampling capabilities. The boreholes are (by design) drilled to intersect regions of 
the thermally perturbed rock that would be undergoing different thermal-hydrological-chemical 
processes (boiling, drying, condensing, dissolving, and precipitating) at different times. For 
preheating baseline data, pore water was obtained from centrifuged cores of boreholes 182 to 
184 (ESF-HD-PERM1PERM3) on the other side of the connecting drift across from the DST 
block. The concentrations of inorganic ions have been measured and reported. Otherwise, all of 
the analytical data reported in this section are from water samples obtained during heating from 
boreholes constructed for water sampling within the DST block. 
A series of boreholes were equipped with two types of fluid sampling systems. First, ten 
boreholes were instrumented with FLUTe (Flexible Liner Underground Technologies, Ltd.) 
liners designed specifically for sampling water and gas for chemical analyses. (Liners installed 
into the different thermal field tests were manufactured by both SEAMIST and by FLUTe. 
Although FLUTe provided all of the liners used in the DST, in some documents they continued 
to be referred to as SEAMIST liners (e.g., Section 5.1.4 of CRWMS M&O 1998 [DIRS 
111115]). These are the chemistry boreholes, ESF-HD-CHE-(1 through 10) (or boreholes 52 to 
56 and 69 to 73, as shown in Figure 6.3-7). Second, boreholes instrumented with inflatable 
packer strings were designed with air permeability testing as the primary function (see Section 
6.3.2.4). Observations during the SHT (see Section 6.2.4.1) demonstrated how the system could 
be effectively implemented in fluid sampling. These are the hydrology boreholes, ESF-HD-
HYD-(1 through 12) (or boreholes 57 to 61, 74 to 78, 185 and 186, as shown in Figure 6.3-4). 
Both the chemistry and the hydrology boreholes were expected to provide opportunities for 
water collection throughout thermal testing. The chemistry boreholes, with proper spacing of 
high absorbency pads, would yield good spatial and temporal coverage of geochemical data even 
with small volumes of water. The hydrology boreholes, with inflated packers that straddle 
highly fractured regions of rock, would potentially accumulate water as moisture entered along 
the 5 to 10 m of opening. Generally, although both systems employed proven technology, the 
high temperatures of the DST would place somewhat unusual requirements on materials used for 
their construction. 
For the FLUTe liners, a high-temperature silicon rubber was selected to ensure flexibility and 
durability for the often-repeated liner installation and retrieval processes. Unfortunately, the 

liners themselves never performed to expectations, either under the thermal load of the DST or 
with sufficient strength to survive repeated manipulations against the irregular and sharp features 
of the borehole walls. For the inflatable packers, two high-temperature rubbers were selected. 
Among the cooler regions of rock, a neoprene rubber was employed, and in the hottest boreholes, 
a fluorocarbon rubber was employed. Both proved to be mechanically sound, but not chemically 
inert in the hotter boreholes. In this section, the geochemistry of water samples that have been 
collected in the DST will be discussed. Although attempts were made to salvage the installed 
liner systems of the chemistry boreholes, those attempts proved to be unsuccessful. 
Consequently, the aqueous sampling role of the hydrology boreholes has been critical, and the 
analyses of waters collected from them form the aqueous geochemistry database of the DST. 
The field measurement data are identified with data in DTNs: MO0207AL5WATER.001 
[DIRS 159300], MO0101SEPFDDST.000 [DIRS 153711] and SN0203F3903102.001 [DIRS 
159133]. 
Analytical data acquired by Inductively Coupled Plasma and Atomic Emission Spectroscopy 
(ICP/AES) and Ion Chromatography (IC) for metals and anions respectively are performed under 
the control of the technical implementation procedures: TIP-AC-02 for metal concentrations and 
TIP-AC-03 for anion analyses. The standard metals suite includes: Al, B, Ca, Fe, K, Li, Mg, Na, 
S, Si, and Sr; trace metals analyses are available upon request. The standard anion suite includes 
the following: F, Cl, Br, NO2, NO3, PO4, and SO4. The analytical results are in the TDMS 
identified with data in the following DTNs: 
 
MO0005PORWATER.000 [DIRS 150930] 
 
LL001100931031.008 [DIRS 153288] 
 
LL001200231031.009 [DIRS 153616] 
 
LL020302223142.015 [DIRS 159134] 
 
LL021107623121.014 [DIRS 169257] 
 
LL030107523142.031 [DIRS 169258] 
 
LL990702804244.100 [DIRS 144922] 
Note that DTNs: LL001200231031.009, LL030107523142.031, and LL990702804244.100 are 
unqualified and should only be used for corroborative purposes. 
6.3.4.1.1 Sampling Procedures 
This section discusses water sampling in the hydrology boreholes. The 12 hydrology boreholes 
instrumented with strings of inflatable packers were located in three arrays (Figure 6.3.4.1-1). 
When inflated, the packers formed isolated open intervals that are referred to as test zones. Test 
zone 1 for a given borehole is defined to be the interval between the packer closest to the 
observation drift, and the next closest packer. All the zones continue to be numbered 
sequentially, with the deepest zone (zone 3 or 4) defined by the deepest packer and the borehole 
bottom. To implement the packer system as a water collection device in the DST, the air 
injection lines used in the air permeability testing become the sampling tubes to pump water out 
into the observation drift. The air injection tubing opens to the lowest elevation of each zone. If 
fluids enter the zone by fracture flow, they would potentially drain to the bottom, where access to 
the tube opening would be possible. The provisions for water capture and retention, however, 

would be somewhat dubious, since the boreholes would be expected to act as capillary barriers to 
liquid flow. Nevertheless, experience in the SHT demonstrated that fluid would enter into some 
of the intervals, collect in the lowest end, and remain until pumping could be conducted. Water 
samples obtained from these zones were potentially derived from the entire open interval, a 
length of approximately 5 to 10 m. 
Water sampling has been conducted by peristaltic pumping of individual zones on a regular and 
on an as-needed basis. In addition, a couple of opportunities to collect DST borehole waters 
presented themselves to other thermal test personnel; water samples collected opportunistically 
were done so without the benefit of standard sampling instrumentation, analytical field testing, 
and field preservation. These miscellaneous waters are not represented in Figure 6.3.4.1-1 or in 
the compilation of field data to follow. During water sampling activities, all zones are pumped 
for at least five minutes. Thus, zones that may be well above the boiling temperature, 
approximately 96C, are pumped along with lower temperature zones. In these boreholes, heated 
water vapor that was pumped through the sample tubing condensed as it was pulled away from 
the hot sampled area to the cooler vicinity of the observation drift. The condensed water vapor 
was then collected in the field as a sample of water. Water sampling from boreholes in the 
relatively dry host rock of the DST precludes practices that are common to sampling in saturated 
formations from an essentially unlimited water supply. Water volumes typically collected from a 
borehole zone are approximately 100 to 1500 mL. As a consequence, conservation measures are 
generally followed to maximize the information that may be gained from analytical tests. To 
collect water from individual zones in the hydrology boreholes, a peristaltic pump located in the 
observation drift was connected to an air-injection line through a manifold located outside each 
borehole array. Before sampling a zone, the peristaltic pump was prepared with clean sample 
tubing for the intake and the output lines, or the installed tubing might be thoroughly flushed 
with de-ionized water. Pumping was initiated once the hose from the pump to the manifold and 
from the pump to the collection vessel were in place. An optional vacuum gauge might be 
inserted into the intake line to indicate whether the air injection line from the borehole was 
submersed in water or was open. 
The collected samples were designated for field testing and various analytical suites. Samples 
designated for analyses were prioritized based on acquired sample volumes. Field testing 
included temperature and temperature-dependent measurements of pH, total dissolved solids 
(TDS), and electrical conductivity (EC). When a sufficient sample was available, an alkalinity 
titration could be performed. From the measured alkalinity, the samples carbonate, bicarbonate, 
and hydroxide concentrations could be calculated. Samples designated for laboratory analysis 
were filtered in the field (= 0.45 m), collected into certifiably clean sample bottles, and 
preserved. The samples to be collected for analysis included: (1) a metals sample filtered into a 
polyethylene bottle and acidified to pH = 2 using Ultrapure nitric acid; (2) an anion sample 
filtered, collected in a polyethylene bottle, and preserved in cold storage; (3) isotope samples for 
Sr and U analyses filtered into plastic bottles and acidified to pH less than 2 using Ultrapure 
nitric acid; and (4) stable-isotopes sample (carbon, hydrogen, and oxygen), filtered and collected 
in glass sample bottles. 

6.3.4.1.2 Results: Aqueous Chemistry 
Field Measurements and Observations 
Aqueous samples collected for chemical analyses have been acquired from several hydrology 
boreholes during the four years of heating. The first samples were collected six months after 
heating began, with subsequent sampling activities about every two to three months (more or less 
frequently as indicated). A summary of the water samples, the field data, and important 
observations for samples collected up to January 14, 2002 is presented in Table 6.3.4.1-1. 
Samples are reported and tracked by the Sample Management Facility (SMF) code assigned in 
the field (an 8-digit number, generally preceded by SPC). The borehole numbers that are used 
in the Table 6.3.4.1-1 are the sequentially numbered DST boreholes (Figure 6.3-4). 
Each row in Table 6.3.4.1-1 is a tabulation of relevant information recorded for a single sample. 
The information may include collection date, start and stop pumping times, total approximate 
volume, location by borehole number and zone (BH# - zone), field data, sample number (SMF 
ID), sample temperature (measured in the field at time of collection), comments and 
observations. The information represented derives from different personnel (with varying 
degrees of experience), different field test equipment, and differences in working instrumentation 
and supplies. The table does not present sampling efforts in which no water was collected. 
In Table 6.3.4.1-1, temperature entries represent those values measured in the field during 
sampling and do not represent the in-situ borehole temperatures (which are recorded by the DST 
Data Collection System). Furthermore, the temperature dependent field properties, (i.e., pH, 
TDS, and EC) were determined for the measured temperature reported. A multiparameter field 
test meter measures and automatically compensates for temperature, using the known thermal 
sensitivity of the glass electrode. The pumping start and stop times are included whenever the 
information was noted. The stated pumping times by themselves are not important, but, together 
with the estimated volume, they give an approximate sample flow rate. It has been observed that 
zones with accumulated water exhibited generally higher flow rates than ones that, for example, 
were produced by steam condensing in the sampling line. Finally, although alkalinity is a field 
measurement, it is incorporated with the table of analytical results that follow. Measured 
alkalinity was an important addition incorporated in the revised sampling procedure, but the 
titration requires approximately 100 mL of sample. Consequently, for zones that produce low 
water volumes, alkalinity is not generally measured because of insufficient sample volumes. 
Finally, in reviewing Table 6.3.4.1-1, an attempt to interpret the lack of water from different 
borehole zones, as suggested by gaps in the data, should be avoided. Field personnel generally 
allowed several minutes pumping time from each interval. However, the fact that no water was 
acquired does not necessarily indicate a dry zone; it may also reflect a failed packer seal (see 
Table 6.3.2.4-4 for a list of failed packers), clogged sampling tube, or inadequate pump pressure. 
Laboratory Analyses 
Water samples collected from the hydrology boreholes are prioritized for several analytical tests 
including major ion chemistry and certain isotope analyses. Metal and anion concentrations 
measured by ICP/AES and IC, respectively, are reported in this section. The major ion data 

compiled for the samples analyzed are presented in Table 6.3.4.1-2; values for pH and HCO3 
(measured in the field) are included for convenience. 
In Table 6.3.4.1-2, the SMF sample identifications are traceable to the field activities recorded in 
Table 6.3.4.1-1. (The exception is for baseline water acquired from pore water centrifuged from 
boreholes 182 (ESF-HD-PERM1) through 184 (ESF-HD-PERM3). Different conventions have 
been followed for assigning the unique SMF identification number used in both tables. Water 
samples are pumped during a sampling trip, and collected into different bottles designated for 
analyses. Entries in Table 6.3.4.1-2 reflect two conventions that have been followed. First, in a 
given sampling trip all sample bottles filled from one zone have been assigned a single SPC#; 
additional descriptions may record a date and time that the sample was acquired for 
distinguishing the order. Second, a unique SMF identifier is assigned to each of the bottles 
collected from a single zone, and the relevant date and time are recorded. It is worth noting that 
samples for metal and anion analyses identified with the same SPC# are not more closely related 
than samples identified with a different SPC# (entries in Table 6.3.4.1-2 might appear to suggest 
otherwise). This is important because several samples collected one after another have exhibited 
increasingly dilute chemistries with continued pumping. Similar evidence is also observed in 
field data when multiple samples from a zone are tested and recorded. 
Chemical analyses have been reported from water samples collected from each of the three 
borehole arrays (see Figure 6.3.4.1-1) and from boreholes located both above and below the 
heated drift. Most of the aqueous samples collected and analyzed would appear to fall into two 
main groups: (1) Water samples for which chemistries have been consistent with mineral/water 
interactions, particularly fracture lining minerals such as silica polymorphs and calcium 
carbonate. Intervals from which these waters derive are below and up to boiling (approximately 
96C) temperatures. (2) Very dilute water samples obtained from intervals near or above boiling 
that were consistent with derivation from condensed moisture in the sampling line. From the 
beginning, these samples were not considered to add value to the aqueous geochemistry study 
and were thought unnecessary for collection. However, it has been up to individual field 
personnel, working in concert with the aqueous sampling procedure, whether to collect and save 
the samples. Generally, all zones were pumped during the field collection trips, and no 
distinctions were made for samples derived from condensed water vapor. 
Some trends may be observed among the first group of samples. First, measured pH values 
range from approximately 6.1 to 8.3. Concentrations for specific analytes were variable, but the 
trends were similar. In general, SO4 and Cl were the dominant anions; Si is the principal metal, 
followed by Ca and Na (having similar concentrations to each other). Present, but in lower 
concentrations, were K, Mg, Sr, and NO3. (These data were different from chemistry of the 
baseline pore water samples and were unrelated to construction water, which had a bromide 
tracer of approximately 20 ppm.) This class included a small number of water samples with very 
distinctive, concentrated water. Borehole 59-4 (11/98 and 01/99) in particular appeared to 
exhibit evaporatively concentrated water, and boreholes 59-2 (08/99) and 76-3 (10/99) had 
somewhat higher concentrations of the principal analytes observed. 
Some samples could be recognized in the field and by laboratory analyses as deriving from 
condensed vapor and generally showing little or no water/rock interaction. The samples 
generally had lower pH values (approximately 4.0 to 6.0) and low TDS and EC. These samples 

were collected from hotter boreholes, at boiling temperatures and higher. The analytical results 
from the samples indicate the compositions are consistent with relatively pure water. (These 
analyses were generally of little interest; they were therefore not routinely submitted to the 
TDMS.) On the other hand, condensates from the highest temperature intervals (greater than 
140C) exhibited lower pH values (less than 4.0) than might be expected from the effect of CO2bearing 
steam condensation alone. These samples also exhibit values of TDS and EC that are 
not negligible and have unusually high fluoride concentrations (5 to 66 mg/L). Further field-
testing was carried out to investigate the cause of the unexpected fluoride concentration for these 
water samples. These investigations are discussed in detail in Section 6.3.4.5. 
6.3.4.1.3 Measurement Uncertainty: Aqueous Chemistry 
Field Sampling 
The procedures developed for use in the field were intended to support the analytical data that 
ultimately would be derived from the collected samples. Measures included obtaining field 
values for some unstable properties on calibrated instruments (e.g., pH, EC, TDS, and alkalinity) 
and appropriately treating and preserving specific samples (e.g., filtering, acidifying, and storing 
in appropriate bottles). Reasonable efforts were made to accomplish these goals during each 
sampling trip. However, occasionally, for reasons outside the field technicians control (e.g., a 
meter battery was out, replacement bottles and supplies had not arrived before the sampling trip), 
the protocol could not be followed in its entirety. In those cases, samples were collected (the 
most important objective) and deviations were described in field notes. These types of issues 
were not considered to have significant impact on the actual data. Although attempts were made 
to minimize the time between collection and analysis, delays in getting samples delivered from 
the SMF were regularly encountered. When redrafting the protocol after the first year of heating, 
many of the issues were addressed. 
The use of peristaltic pumping to acquire water from the hydrology boreholes is generally 
considered a suitable method for obtaining a representative, in situ DST water sample. However, 
certain conditions inherent to the thermal test environment may introduce uncertainty into some 
geochemical parameters. First, because of the relatively dry host rock, most water accumulations 
are insufficient to achieve and maintain water-filled lines during the sample collection process. 
(In the field, this is evidenced by air bubbles in the sample tubing.) Potentially, water passing 
through the tubing may equilibrate with air in the line and thereby affect the concentrations of 
dissolved gases (CO2 for example). Another issue previously mentioned is important when 
water is pumped to sequentially fill multiple bottles. Water samples clearly marked as to the 
order in which they become filled (see time notations in Tables 6.3.4.1-1 and corresponding 
analyses in Table 6.3.4.1-2) may exhibit increasingly dilute concentrations with time. This 
suggests that as the standing water in the borehole is depleted, the heated vapors present 
condense and dilute water in the line. This effectively becomes a problem because (for example) 
if the initial sample is designated and preserved for metals testing, the second sample is 
designated for anions, and the final sample is used for field measurements (pH, EC, and 
bicarbonate), then a charge balance calculation and a check of the electrical neutrality would 
indicate inconsistency. This condition taken to its extreme gives rise to samples derived solely 
from condensed vapor. 

Laboratory Analyses 
For both ICP/AES and IC, method detection limits (MDL) are determined for each analyte. The 
MDL represents the minimum concentration that can be identified, measured, and reported with 
99 percent confidence that the analyte concentration is greater than zero. Generally, reportable 
concentrations (as established by laboratory chemists) are required to be greater than 3 to 5 times 
the MDL. For the concentrations reported in Table 6.3.4.1-2, values determined to be less than 
the reportable limit are indicated as nondetected. Therefore, no distinction is made for 
analytes that are present at some very low level and those with no measurable concentration. 
An additional uncertainty that may be introduced into analytical results occurs for samples that 
require some level of dilution. Samples may need to be diluted when concentrations exceed the 
measurement range for analytes of interest. If the total sample volume is very small, reagent 
grade water may be added to extend the sample. In such cases, the concentration measured, as 
well as the limits of detection, are multiplied by the dilution ratio. The result is that very small 
errors are exaggerated. 
Holding times are another source of uncertainty (and might just as easily be considered in the 
field-sampling section as in the analytical results). Ideally, all sample analyses should be 
performed as soon after sample collection as possible to ensure that the analyses are 
representative of the in situ water chemistry. The U.S. Environmental Protection Agency (EPA) 
has established maximum hold times, which are almost universally recognized for drinking water 
analyses. As guidance for the DST borehole water samples, the EPA hold times, which typically 
ranged from 2 to 25 days, were suggested in the protocol (TIP-AC-03). The guidelines have 
generally been met, with the exception of the holding time recommendations for NO3, NO2, and 
PO4. The measured concentrations for these less stable anions may be impacted as a result. 
Records indicate that the holding time for samples obtained from centrifuged cores 
(Section 6.3.4.1) exceeded four months. Water was extracted over a three month period from 
May 1998 through July 1998. Laboratory analysis was conducted in December 1998 at LLNL 
by ion chromatography. 
Quality control in the analytical laboratories is maintained using reagent blanks, laboratory 
control samples, and matrix spiked samples submitted in duplicate with sample batches 
(approximately 10 samples or less). Analytical precision is assessed using the duplicate analyses 
of both the laboratory control and matrix spiked samples (typically prepared with analyte 
concentrations approximately midpoint of that expected for the samples). Acceptance limits for 
measured concentrations in the control samples are  10 percent of the known true value. The 
accuracy of the results is based upon the percent recoveries for each analyte in the control and 
matrix spiked samples; the total recoveries of method analytes in the control sample and matrix 
spiked sample must be within 80 to 120 percent to be acceptable. 
Note that of the six DTNs containing the aqueous chemistry data, DTNs: LL001200231031.009 
[DIRS 153616], LL030107523142.031 [DIRS 169258], and LL990702804244.100 
[DIRS 144922], are unqualified and should only be used for corroborative purposes. 

6.3.4.2 Gas Chemistry 
Gas samples were periodically collected from the hydrology boreholes (see Figure 6.3-4) during 
the heating phase from December 3, 1997, through January 14, 2002. The purpose of these 
samples was to measure the concentration and carbon isotope ratio of CO2 and the hydrogen and 
oxygen isotope ratios of water vapor. The concentration and isotopic composition of CO2 in the 
heated drift and the observation drift were also measured during the test. In addition, to provide 
data on the background concentration and isotopic composition of CO2 in the rock, two gas 
samples were collected in August 1997 from borehole 182 (one of the ambient testing boreholes 
drilled on the opposite side of the connecting drift across from the DST block). The CO2 
concentrations and isotope compositions for both the gas samples and the condensate samples 
collected in 16 sampling trips through the heating phase are in the TDMS under the following 
DTNs: 
 
LB980420123142.005 [DIRS 111471] 
 
LB980715123142.003 [DIRS 111472] 
 
LB0404ISODSTHP.003 [DIRS 169254] 
 
LB990630123142.003 [DIRS 111476] 
 
LB000121123142.003 [DIRS 146451] 
 
LB000718123142.003 [DIRS 158342] 
 
LB0102CO2DST98.001 [DIRS 159306] 
 
LB0108CO2DST05.001 [DIRS 156888] 
 
LB0203CO2DSTEH.001 [DIRS 158349] 
 
LB0206C14DSTEH.001 [DIRS 159303] 
 
LB0011CO2DST08.001 [DIRS 153460] 
6.3.4.2.1 Gas Sampling 
Gas samples were pumped from the 12 hydrology boreholes (57 to 61, 74 to 78, 185 and 186). 
Each hydrology borehole was separated into three or four intervals by strings of high 
temperature, inflatable packers. High temperature plastic tubes (that function as conduits for 
both air injection in permeability measurements and fluid sampling) led from each interval in the 
boreholes to the observation drift. For gas sampling, the tube leading to the interval to be 
sampled was isolated and connected to a diaphragm pump with a moisture trap. For higher 
temperature intervals (greater than approximately 50C), a 4C gas chiller unit was placed before 
the pump to condense the water vapor from the gas before collection. 
After purging the interval and sample tubing for 4 to 5 minutes, the gas samples were collected 
in 1-liter Tedlar bags from the outlet of the diaphragm pump. The normal pumping speed for the 
pump is 60 L/min; however, airflow rates during sampling varied considerably, depending on 
factors such as the permeability of the interval, the temperature, and the air moisture content. In 
particular, when the temperature in an interval was near the boiling temperature or above, water 
vapor constituted the major component of the gas phase (greater than 98 percent). Since most of 
the water vapor was being stripped from the gas before it entered the pump, the flow of 
noncondensable gas out of the pump was very low (to less than 1 L/min). 

The water vapor condensed in the chiller trap was sampled for oxygen and hydrogen isotope 
measurements. The condensate in the water trap was composed of all of the water vapor that 
condensed in the trap throughout the pumping period, including the time during which the 
sampling interval was being purged. Sampling times for the vapor condensates ranged from 
approximately 20 minutes for cooler intervals (up to about 80C) to as little as 5 minutes for the 
higher-temperature intervals, resulting from the high vapor contents of the intervals near the 
boiling point. After each sample was collected, the chiller trap was thoroughly dried, and the 
chiller unit was purged with dry tunnel air for at least 5 minutes before collection of the next 
sample was begun. 
Air samples from the observation drift were collected using the diaphragm pump to fill a 3-liter 
Tedlar bag. Samples of the heated drift were collected by attaching the pump to a stainless steel 
tube leading to approximately the mid-point of the drift. The sample was taken after purging the 
tube for approximately 5 minutes. To determine the initial concentration and isotopic 
composition of CO2 in the rock, two gas samples from borehole 182 were collected during 
August 1998. To take these samples, an inflatable packer was installed approximately 20 m into 
the borehole. The first sample was collected after the borehole was purged for approximately 5 
minutes. The second sample was taken after the interval had been pumped for almost 24 hours. 
6.3.4.2.2 Results: CO2 Concentration 
The CO2 and isotopic compositions are given in Table 6.3.4.2-1. The CO2 concentrations in the 
gas samples were measured using two different instruments. Initially, the laboratory 
measurements of the CO2 concentrations for these samples were only intended to gain an 
estimate of the amount of CO2 that should be produced during separation of the CO2 from the 
samples intended for isotopic analyses. The CO2 concentrations in the rock were supposed to be 
analyzed in situ with a Columbus Instruments Model 180C Gas Analyzer. However, because of 
problems with the sampling technique for the in situ measurements and the gas analyzer, the only 
CO2 concentration data from the first 3 years of heating are the laboratory data for the samples 
listed in Table 6.3.4.2-1. Starting in January 2001, the CO2 concentrations of the isotope 
samples were analyzed using the Columbus Instrument gas analyzer at the site calibrated with 
qualified standards. Both the laboratory and field analytical techniques are outlined below, and a 
comparison of the data for samples analyzed by both methods is presented. 
For the first 3 years of the DST, the samples were transported back to a laboratory for analysis. 
The CO2 concentrations in the samples are measured using an infrared analyzer (Li-Cor) in the 
Amundson Laboratory at the University of California, Berkeley. For analyses, 5 cc of gas was 
injected into the CO2 analyzer and compared to a 500 ppm standard. At low concentrations 
(= 2,000 ppm or 0.2 percent v/v), the precision of this technique was approximately  1 percent 
of the measured value. At higher concentrations, the analyses were out of the range of the 
standard used to calibrate the instrument, and the precision is not as good (see discussion below). 
Beginning in January 2001, samples were also analyzed using the Columbus Instruments Model 
180C Gas Analyzer at the ESF. For these analyses, approximately 250 cc of gas was fed into the 
instrument and analyzed after calibration with a qualified standard gas. For samples with lower 
concentrations (= 1 percent v/v), the analyses were done using the low-range sensor calibrated 
with a 0.504 percent CO2 standard. These analyses are accurate to within approximately 0.05 

percent. Higher concentration samples (greater than 1 percent v/v) were measured with the high-
range sensor calibrated with a 4.995 percent CO2 standard, with an accuracy to within  0.3 
percent. 
A comparison between the two instruments suggests that lower end measurements (less than 0.05 
percent), tend to be a bit higher for the Li-Cor analyses than the Columbus Instruments analyses. 
For this case, the Li-Cor data are probably better, since the standard used for comparison on this 
instrument was a 0.05 percent standard. At higher concentrations, the Li-Cor data are 
consistently lower than Columbus Instruments data. For these samples, the Columbus 
Instruments data are more reliable, because they were measured using calibration gases in the 
same range of concentration. In general, for samples with CO2 concentrations greater than 0.2 
percent, the Li-Cor measurements are low by approximately 16 percent. 
6.3.4.2.3 Results: Isotopic Composition of CO2 
After measuring the CO2 concentration in the gas samples, the CO2 was cryogenically separated 
from the samples for isotopic analyses. The CO2 isotopic compositions are also given in 
Table 6.3.4.2-1. For large enough yields of CO2 (greater than 30 moles), two aliquots of CO2 
were collected. The stable carbon (d13C value) and oxygen (d18O value) isotope 
ratios aliquot was analyzed according to the YMP Technical Implementing Procedure 
YMP-LBNL-TIP/TT-7.0, Extraction and Analysis of the Stable Isotopic Compositions of CO2 in 
Gas Samples for Isotopic Analyses. If there were problems with the first analysis, then the split 
was used for a second stable isotope analysis. If there were no problems, then the splits were 
catalogued and stored for possible radiocarbon (14C) analysis. 
6.3.4.2.4 Results: Isotopic Analyses of Vapor Condensate Samples 
The hydrogen and oxygen isotope compositions of the vapor-condensate samples were measured 
to gain an estimate of the isotopic composition of the pore water in the rock (Table 6.3.4.2-2). 
The hydrogen isotope ratios (dD values) were measured following YMP Technical 
Implementing Procedure YMP-LBNL-TIP/TT-9.0, Hydrogen Isotope Analyses of Water. The 
oxygen isotope ratios (d18O values) were measured following YMP Technical Implementing 
Procedure YMP-LBNL-TIP/TT-10.0, Analysis of the Oxygen Isotopic Composition of Water 
Samples Using the Isoprep 18. The isotopic composition of the pore water can be calculated 
from the isotopic composition of the vapor (Horita and Wesolowski 1994 [DIRS 159108]), 
assuming that the pore water is in isotopic equilibrium with the vapor in the gas samples at the 
temperature of the rock. This information can provide valuable insights into the degree of dryout 
in the rock and the extent of vapor transport. 
6.3.4.2.5 Measurement Uncertainty: Concentration and Isotopic Ratios 
CO2 Concentration 
Besides the uncertainties associated with the measurements, there were a number of other factors 
that affected the measured CO2 concentrations. These are listed below, together with an 
assessment of the potential impact on the measured CO2 concentrations: 

1. 
Removal of water vapor from the samples  Condensing the water vapor from the 
samples will lead to measurement of high CO2 concentrations in the gas relative to the 
actual concentrations of pore gas in the rock. This is more significant in intervals at or 
above the boiling point. However, the magnitude of this effect can be calculated by 
assuming that the gas in the rock was saturated with water vapor at the temperature of the 
rock. Using this correction provides a lower bound on the CO2 concentration in situ, but 
the actual values must be close to the lower because of the observed high humidity in the 
sampled intervals (Section 6.3.4.2.1). 
2. 
Small leaks in the sampling apparatus  This could lead to some contamination of the 
samples with air from the observation drift. This was probably not significant except in 
samples where the gas flow rates were very low (e.g., those intervals with high vapor 
contents in the gas). In those instances, the measured concentrations could be diluted by 
as much as 50 percent relative to the actual concentrations. 
3. 
Other tests using the hydrology boreholes  The hydrology boreholes were used for a 
variety of other measurements, including air permeability tests and sampling of water. 
The impact of water sampling was probably minimal, but the air permeability 
measurements (which consisted of injecting N2 gas into the intervals) could significantly 
dilute the CO2. As much as possible, gas sampling was scheduled just before any air 
permeability tests were performed to minimize the effects of the air permeability 
measurements on the CO2 measurements. 
4. 
Deflated packers  Over time, several packers in the hydrology boreholes developed 
leaks and deflated (see Table 6.3.2.4-4 for a list of deflated packers and the dates they 
became deflated). This was especially prevalent in the higher-temperature intervals. 
Even when deflated, the packers still formed a barrier between the intervals (their 
deflated diameter is only slightly less than the diameter of the borehole). However, it is 
likely that samples taken from intervals with deflated packers contained some gas from 
the intervals on the other side of the deflated packers. After April 2000 (when the 
problem became more prevalent), investigators began noting which samples were 
collected from intervals with deflated packers by including the adjacent intervals in the 
sample name. For instance, when the packer between interval 3 and 4 in borehole 57 was 
deflated and a sample was collected from interval 3, the sampling interval was noted as 
57-3/4 indicating that the sample was taken from borehole 57, interval 3, but may contain 
input from interval 4. Several of the packers began leaking before April 2000 and were 
deflated (most notably in borehole 77), but this was not indicated by the sampling 
interval. 
5. 
Refer to precision and accuracy discussion in Section 6.3.4.2.2. 

Isotopic Composition of Pore Water Estimated from That of Condensate 
There are a number of uncertainties that limit the reliability of these measurements: 
1. 
Temperature uncertainties  The temperature can vary significantly within an interval, 
making it difficult to determine the temperature to use for calculating the isotopic 
composition of the water. 
2. 
Condensation in sample tubing  During sampling, the water vapor moves from the hot 
temperatures in the rock to the cooler temperatures in the observation drift. This can lead 
to significant condensation of water vapor in the tubing prior to the chiller unit. This 
effect is believed to have been minimal because of the large volume of air flushed 
through the tubing and the increase in the temperature of the tubing during sampling. 
However, this still may account for some loss of vapor prior to the chiller unit. Since the 
dD and d18O values of the vapor are lower than those of the liquid, this will cause the 
isotopic composition of the water vapor that reaches the condensate trap to be lower than 
the composition of the water vapor in the rock. 
3. 
Inefficient trapping by the chiller unit  The chiller unit used for this sampling was not 
capable of completely cooling high-temperature water vapor (greater than 80C) to 4C. 
As a result, a fraction of the water vapor in the higher-temperature samples passed 
through the chiller unit. The water vapor that does not condense in the trap will have 
lower dD and d18O values than the water in the trap, which will lead to high values for 
the condensate. To minimize this effect, any water in the pump trap (generally less than 
10 mL) after the chiller unit was mixed back into the water in the chiller trap. Altogether, 
the amount of water vapor loss is believed to be less than 5 percent. For this amount of 
loss, the net effect on the dD values will be less than 3%; on the d18O values it will be 
less than 0.5%. It should also be noted that this shift and any shift caused by #2 above 
would offset each other. 
6.3.4.3 DST Mineralogic and Petrologic Analyses 
Mineralogic characterization data provide quantitative information on mineral distribution and 
abundance in the preheating rock under ambient conditions. Mineralogic changes while the test 
is in process are also documented. These data support the coupled thermal-hydrologic-chemical 
modeling effort. 
Expectedly, detectable mineralogic changes from the test were restricted to the natural fracture 
system and the surfaces of preheating boreholes that function as preferential fluid flow paths. 
Mineralogic changes within the rock matrix were expected to be undetectably minute. These 
expectations were supported by qualitative examination of the SHT postcooling overcores (see 
Section 6.2.4.2) and by quantitative X-ray diffraction (XRD) of pre- and post-testing crushed 
TSw2 samples from a hydrothermal column test (Lowry 2001 [DIRS 157900], p. 29). These 
studies found no detectable mineralogic alteration of the rock matrix at the conclusion of the 
hydrothermal tests. Evidence of mineralogic alteration was limited to fractures and borehole 
surfaces of the SHT and to crushed-tuff fragment surfaces from the column test. 

Mineralogic characterization of the natural rock-fracture surfaces was accomplished by study of 
preheating drill core from the DST block. A decision was made to employ stereoscopic 
examination of fracture surfaces, supplemented by scanning electron microscope (SEM) and 
XRD, for mineralogic analysis, so as to characterize as much fracture surface as possible. 
Compared to the exclusive use of microanalytical techniques, this strategy sacrifices achievable 
precision and accuracy, but maximizes the representativeness of the data because more fracture 
surface is examined. The end product is a quantitative mineralogic inventory of the fracture 
system that can be input to modeling. Mineral abundances of stellerite, manganese minerals, 
crystalline silica and feldspar, clay, and calcite on the fracture surfaces are in the TDMS under 
the Input DTN LA9912SL831151.002 [DIRS 146449]. 
Investigators learned from the SHT that mineralogic sampling while a test is in progress would 
be more valuable than collecting samples only after the test is finished. To realize this goal for 
the DST, a sidewall sampling tool was designed and built to provide an in-progress sampling 
capability. The tool operates within existing boreholes, targeting intervals of fractured rock that 
were identified from borehole video recordings. Two coring sessions have been conducted 
during the transition from heating to cooling phases of the test. 
In November 2000, the sidewall coring tool was used to collect six sidewall cores from inclined 
boreholes ESF-HD-CHE-2 and ESF-HD-CHE-3 (boreholes 53 and 54 in Figure 6.3-7). In 
June 2001, eight samples were collected from the two previously sampled boreholes plus 
borehole ESF-HD-CHE-9 (borehole 72 in Figure 6.3-7). The sidewall cores from these 
boreholes have provided information on mineralogic changes in the boiling zone. The elemental 
abundances and chemical, textural, and mineralogic characteristics of core samples from 
borehole 54 are in the TDMS under Input DTN: LA0201SL831225.001 [DIRS 158426]. 
6.3.4.3.1 Results: Mineralogy of the Preheating Natural Fracture System 
Systematic data on natural, preheating fracture-mineral coverage were collected from the drill 
core of borehole ESF-HD-TEMP-2 (borehole 80 in Figure 6.3-3), a horizontal borehole that runs 
parallel to the heated drift. The drill core is 195.6 ft (59.62 m) long, but the first 25 ft (7.62 m) 
of the core are well outside the heated drift and were excluded from study. The number of 
fractures in the relevant length of core was too large for all to be included in the characterization. 
Therefore, a conceptual model of fracture attributes was developed to guide the selection of a 
subset of fractures for mineralogic analysis. The conceptual model is based on a major 
simplification of the criteria used to define subzones of the middle nonlithophysal zone (Buesch 
and Spengler 1998 [DIRS 101433], pp. 18, 20). 
The rock traversed by ESF-HD-TEMP-2 consists of intervals dominated by vapor-phase features 
and intervals where vapor-phase features are not prominent. As seen in the drill core, the 
dominant vapor-phase features are vapor-phase partings and vapor-phase stringers that dip 
eastward at low angles parallel to the rock foliation. Both partings and stringers are fractures 
lined with crystalline silica and feldspar fracture coatings, commonly called vapor-phase 
minerals. In intervals where vapor-phase partings and stringers and associated vapor-phase 
cavities (lithophysae) are common, the rock-matrix color is light brownish gray. Rock-matrix 
color in the intervals with only rare vapor-phase features is grayish orange pink to light brown. 

Reconnaissance examination of the drill core suggested that the fracture coatings are different in 
the vapor-phase and nonvapor phase intervals, an observation that was confirmed by detailed 
study. Based on this observation, detailed fracture mineral studies were performed in two core 
sections of approximately equal length representing each type of interval. Mineral abundances 
on the fracture surfaces were determined for stellerite, manganese minerals, crystalline silica and 
feldspar (combined), clay (probably also including minor mordenite), and calcite. The results are 
presented in Table 6.3.4.3-1. For the minerals included in the inventory, differences in 
abundance of crystalline silica plus feldspar, and in calcite between the vapor phase and 
non-vapor phase intervals, were documented. The greater abundance of crystalline silica plus 
feldspar in the vapor phase interval is expected because these minerals are among the defining 
characteristics of vapor-phase void spaces. 
Additional natural minerals observed in very small quantities or in local concentrations by SEM 
of preheating core include mordenite, pyrite, and possible hematite. Other minerals are also 
present and will be characterized based on their importance for modeling the test results. 
6.3.4.3.2 Results: Evidence of Mineral Deposition 
Sidewall cores collected during the test revealed new mineral deposits on borehole surfaces and 
on the surfaces of fractures that intersect the boreholes. New mineral deposits are common on 
the borehole surfaces because the boreholes act as preferential pathways for fluid flow. Deposits 
are less common and quantities of new minerals less abundant on the natural fractures within the 
core samples. 
Mineral deposition within the boiling zone is documented by samples from borehole 
ESF-HD-CHE-3 (borehole 54). The three products observed so far are tentatively identified as 
amorphous silica, gypsum, and calcite (DTN LA0201SL831225.001 [DIRS 158426]). The 
presence of amorphous silica on fracture surfaces is documented by sidewall cores collected 
from boreholes 53, 54, and 59 (Input DTN: LA0303WS831151.001 [DIRS 169378]). The 
tentative identifications of gypsum and calcite are based on identifications of these phases by 
XRD as products of the SHT (DTN LA0009SL831151.001 [DIRS 153485]). The silica deposits 
exhibit considerable textural heterogeneity, perhaps because some were deposited when the 
collection site was in the condensation zone and others deposited when boiling-zone dryout 
conditions were reached. 
Examples of possible condensation zone silica deposition above the heated drift have been 
identified. In one example, a fracture surface is completely coated by terrace-like silica deposits 
up to a few micrometers thick. In another example, several discoid silica deposits (up to about 
20 micrometers across) rest on a surface of earlier-deposited discs cemented and largely 
obscured by silica particles about one or two micrometers across. In both examples, the deposits 
were built up during multiple episodes of silica deposition, perhaps during the passage of 
numerous pulses of silica-saturated water. 
Very thin (less than 0.5 micrometer thick), curled silica sheets may be products of final dryout in 
the boiling zone. There is no textural evidence of successive buildup in the silica sheets. Also 
lying atop the earlier silica deposits or on preheating fracture surfaces are scattered deposits of 
prismatic gypsum and rounded mounds of calcite. 

6.3.4.3.3 Results: Evidence of Mineral Dissolution 
Studies of preheating core from the SHT showed that some of the natural fracture minerals have 
experienced dissolution caused by ancient or ongoing geochemical processes. This complicates 
the effort to document mineral dissolution resulting specifically from the DST. To provide 
documentation of natural alteration, samples of preheating drill core from approximately the 
same locations as sidewall samples were examined by SEM. Images of the typical morphologies 
of natural fracture coating minerals and rock fracture surfaces were recorded. The majority of 
such documentation was devoted to stellerite because it is the single most abundant fracture 
coating mineral. 
The natural stellerite fracture coatings in preheating samples did not show clear evidence of 
dissolution. Stellerite in the sidewall core samples also showed no evidence of dissolution. The 
lone exception occurred on one fracture from the 66.5-ft (20.27-m) depth in borehole 
ESF-HD-CHE-3. In this location, a highly corroded stellerite crystal, several slightly to 
moderately corroded stellerite crystals, and a moderately corroded silica crystal were adjacent to 
or within a lobate deposit of amorphous silica (DTN LA0201SL831225.001 [DIRS 158426]). At 
the time of sample collection, this sample came from within the boiling zone. However, the 
sampled rock volume had previously been within the condensation zone before the boiling zone 
moved to its farthest position away from the heaters. It is possible that the observed mineral 
dissolution and, perhaps, deposition, occurred when the rock volume was in the condensation 
zone. 
6.3.4.3.4 Measurement Uncertainty: Mineralogic and Petrologic Analyses 
Estimates of fracture coverage by minerals are the principal numerical data derived from these 
studies. No formal analysis of the errors of estimation has been performed. It is likely that 
mineral coverages estimated to be 10 percent or less have relative errors of 50 to 100 percent 
(e.g., the estimated 2 percent coverage by a mineral could be in the 1 to 3 percent range). 
Estimated mineral coverages greater than 10 percent probably have estimated relative errors of 
20 percent or less. Uncertainties of these magnitudes are considered adequate for current 
modeling purposes. 
6.3.4.4 Strontium and Uranium in Water Samples 
This section discusses strontium and uranium isotopic data obtained from a subset of water 
samples collected from the DST during the heating phase (Section 6.3.4.1). Measurements of 
strontium and uranium concentrations and isotopic compositions in water samples may provide 
information on mineral reactions and water flow paths occurring as the block is heated during the 
test. In addition, isotopic analyses can provide unequivocal evidence of interaction of test-
produced water with the engineered materials introduced into the test block during construction. 
This section discusses data obtained from waters sampled from five boreholes: 60, 186, 59, 76, 
and 80. Data were acquired at the USGS in Denver under Technical Procedures 
NWM-USGS-GCP-03 and NWM-USGS-GCP-12. Uranium and strontium concentrations were 
determined by isotope dilution mass spectrometry. Uranium and strontium isotopic ratios were 
determined by thermal-ionization mass spectrometry. The data have been submitted to the 
TDMS under the following Input DTNs: 

 
GS011108312322.008 [DIRS 159136] 
 
GS010608315215.002 [DIRS 156187] 
 
GS010808312322.004 [DIRS 156007] 
 
GS011108312322.009 [DIRS 159137] 
 
GS960908315215.012 [DIRS 169552] 
 
GS010908315215.005 [DIRS 169553] 
 
GS990308315215.004 [DIRS 145711] 
 
GS040508312272.002 [DIRS 169629] (unqualified) 
 
GS990308315215.003 [DIRS 145707] 
6.3.4.4.1 Results: Strontium and Uranium in Water Samples 
Figure 6.3.4.4-1 shows uranium concentrations and 234U/238U activity ratios in DST waters, as 
well as values obtained for pore water from upper lithophysal and middle nonlithophysal units of 
the Topopah Spring Tuff (Tptp) and values for water perched in the base of the Tptp. Uranium 
concentrations in DST samples vary from 0.003 to 0.65 g/L and are typically lower than 
concentrations observed in pore water extracted by ultracentrifugation from the same units. The 
234U/238U activity ratios (AR) in DST samples vary from 1.14 to 5.68, and unlike U 
concentrations, typically overlap the 234U/238U AR values observed in pore water. Samples from 
individual DST sites obtained at different times during the heating phase of the test have uranium 
concentrations that show a fairly systematic decrease with time (Figure 6.3.4.4-2). Similar to 
uranium, the strontium concentrations in the test waters approach the values estimated for pore 
water and decrease with time. Borehole 60-3 water reached a strontium concentration of 0.2 
g/L in June 1999, about 1,000 times less strontium than this zone produced initially. Figure 
6.3.4.4-3 shows the variation of strontium isotopic compositions in the test waters compared to 
various reservoirs of strontium in the DST block. The orange and red bands show the strontium 
isotopic compositions of the Topopah Spring Tuff (middle nonlithophysal and upper lithophysal 
zones) today and at the time of their deposition, respectively. The green band is the range of87Sr/86Sr in pore water; these data are from borehole USW SD-9, which is the closest vertical 
borehole to the DST block. Grout introduced into the DST block during emplacement of 
borehole instrumentation has also been measured and is shown by the black line at an 87Sr/86Sr 
value of 0.7086. The grout contains over 800 ppm strontium, providing a potentially important 
added source. 
Most of the water obtained during the DST to date has 87Sr/86Sr values within the range of pore 
water. A very dilute sample obtained from borehole 60-3 falls outside the range of pore water. 
The most significant deviations from pore water are exhibited by water from borehole 80. These 
samples, obtained from this neutron borehole, apparently have interacted with the grout used to 
emplace the liner in this borehole. This statement may be evidence of contamination based on 
the known isotopic compositions of the grout and the natural system. The chemistry of these 
samples should be used only as an example of water that has interacted with the engineered 
materials (Section 6.3.4.5). It is notable that the chemistry of these waters does not show 
additional evidence of interaction with grout. 
Borehole 59, zone 4 was sampled in November 1998 and showed a very unusual chemistry, as 
reported in Table 6.3.4.1-2 (approximately 1,200 mg/L chloride) that was initially interpreted as 

probable contamination. This sample was analyzed for strontium isotopic composition, and the 
result plots in the field of pore water (Figure 6.3.4.4-3). Similarly, the 234U/238U AR for this 
sample is in the range of observed pore waters and higher than other samples from borehole 59 
(Figure 6.3.4.4-1) unlike samples with low 234U/238U suspected of contamination. Based on 
these results, the 59-4 sample is not likely contaminated with grout or other anthropogenic 
materials 
6.3.4.4.2 Measurement Uncertainty: Strontium and Uranium in Water Samples 
The accuracy of the isotopic dilution concentration measurements is maintained within the 
analytical precision by the analysis of known concentration standards; the precision of strontium 
concentrations is about 1 percent and the precision of uranium concentrations varies from less 
than 1 percent to about 10 percent, depending on the amount of uranium present. The accuracy 
of the isotopic measurements is maintained by the frequent analysis of standards with known or 
assumed isotopic compositions. For uranium, this standard is a material in which the isotopes 
are in secular equilibrium. For strontium, a standard with a ratio equivalent to modern seawater 
is analyzed; all 87Sr/86Sr ratios are relative to a value of 0.70920 for modern seawater. Absolute 
precisions at 95 percent confidence are 0.00005 for 87Sr/86Sr and from 0.02 to 0.3 for 234U/238U. 
6.3.4.5 Chemical Effects of Introduced Materials in the Drift Scale Test 
As noted in Section 6.3.4.1, packers of chloroelastomer (neoprene) were used in hydrology 
borehole segments where temperatures were not expected to exceed the boiling point. 
Fluoroelastomer (abbreviated FKM) packers were installed in holes where temperatures well 
above the boiling point were expected (Figure 6.3.4.1-1). Within the data set of water 
compositions from the hydrology boreholes, two subsets were distinguished based on elevated 
contents of fluoride or chloride. The water compositions are indications of probable chemical 
interactions between borehole fluids and introduced materials. Thermal conditions prevailing in 
the borehole intervals that were sources of high fluoride or high chloride samples have been 
reconstructed to elucidate the interplay of thermal regime, fluid availability, and introduced 
packer materials. The water sample compositions taken as indications of geochemical 
interactions between borehole fluids and packers, plus field and laboratory experiments to test 
this hypothesis, are described here. Detailed descriptions of the investigations are given in two 
white papers: Effects of Introduced Materials in the Drift Scale Test. (Jones 2004 
[DIRS 170750]) and Effects of Neoprene on Water in the Drift Scale Test (Williams 2003 
[DIRS 163765]). 
6.3.4.5.1 Thermal Environments of Sample Collection 
The high fluoride, low pH water samples were collected from borehole intervals within 
superheated (greater than 140C) zones of the test block. In these high-temperature regions of 
the rock, about 40C above the boiling point, water is present only as superheated vapor  liquid 
water is formed by cooling during the sampling process. 
The high chloride water samples were collected from packed-off borehole intervals where 
temperatures were below the boiling point. Upper-end and lower-end temperatures in the 
BH59/4 interval were about 68C and 70C, respectively, when the 11/12/98 samples were 

collected. On 1/26/99, the upper- and lower-end temperatures were 75C and 77C, respectively. 
Thermal data measured in and near BH75/2 indicate that the top of the zone was near boiling, 
while the bottom of the zone was much cooler when the first high chloride water was collected. 
Figure 6.3.4.5-1 shows a temperature history for BH75/2 from shortly before heater shut-off until 
the interval stopped producing water. Temperature data were taken from the top of zone 75/2 
and from the top of zone 75/1, which is the sensor location closest to the bottom of 75/2. A 
temperature differential of about 15C existed between the upper and lower ends of zone 75/2. 
6.3.4.5.2 Aqueous Geochemistry of Materials Interaction 
The water chemistry information in Tables 6.3.4.1-1 (DTN: SN0208F3903102.002 
[DIRS 161246]) and 6.3.4.1-2 (DTN: LL020709923142.023 [DIRS 161677], unqualified), plus 
more recent data in Table 6.3.4.5-1 (DTNs: LL030305023121.023 [DIRS 170570], 
GS020808312272.004 [DIRS 166569], GS030408312272.002 [DIRS 165226]) and DTNs: 
SN0210F3903102.004 [DIRS 170573], SN0211F3903102.005 [DIRS 170574], and 
LL030310023121.024 [DIRS 170571], was examined for unusual compositions that probably 
reflect the chemical influence of introduced materials. The additional data represent samples 
collected after the heater shut-off and were included to provide the most complete picture of 
materials interactions. Table 6.3.4.5-2 summarizes the information pertinent to the assessment of 
materials interaction and identifies water samples likely to have been affected by interaction. 
For affected samples, the table lists the criteria for identifying materials interaction and 
supporting information such as the composition of packers in the sampled borehole intervals. 
High-Fluoride Samples 
Water samples acquired from borehole intervals 77/2, 77/3, 60/2, and 60/3 between 04/20/99 and 
04/04/02 had fluoride contents between about 2 and 74 mg/L (Table 6.3.4.1-2). All of these 
samples came from intervals isolated by fluoroelastomer packers. The majority of other water 
samples have fluoride contents of 1 mg/L or less. The pH values of the high fluoride samples 
range from 3.1 to 3.7. The range of pH in samples without high fluoride or chloride, including 
samples from BH77 and BH60 that predate the onset of unusual chemistry, is 4.12 to 8.29. The 
compositions of these samples show near-stoichiometric balance of hydrogen and fluoride ions 
in waters of low to moderate ionic strength. These characteristics suggest dissolution of 
hydrogen fluoride (HF) gas into water that condensed from vapor in the sampling tube. Most, 
but not all, of the high fluoride water samples also have contents of other solutes at levels 
somewhat higher than their presence in samples of pure condensate. 
High-Chloride Samples 
Another subset of water compositions has chloride values substantially higher than about 25 
mg/L, which is the most chloride present in the condensate samples, other relatively dilute 
samples, and the high-fluoride samples. A common characteristic of the high chloride samples is 
that they contain chloride well in excess of halite stoichiometry with sodium (Figure 6.3.4.5-2). 
High chloride samples include the 11/12/98 and 01/26/99 samplings of BH59/4 and the 08/09/99 
sampling of BH59/2 (Table 6.3.4.1-2). Additional high-chloride samples were collected from 
BH75/2 between 02/19/02 and 06/26/02 (six samples analyzed; Table 6.3.4.5-1). All of these 
intervals were isolated by chloroelastomer packers. The first four analyzed samples from the 

BH75/2 suite had high chloride values and also had relatively low pH (4.8 to 4.9, with later 
samples up to 6.0). The BH59/4 samples and the first four BH75/2 samples had high sulfate 
contents and slightly elevated fluoride contents (as high as 4.3 mg/L). The BH 59/4 samples and 
six of the seven BH 75-2 samples were distinguished by a yellow color whose source has not 
been determined. 
6.3.4.5.3 Experimental Verification of Materials Interactions 
Laboratory and field experiments were designed and conducted specifically to investigate the 
aqueous chemical effects of heating both introduced and natural materials in the presence of 
water vapor or liquid water. 
Field Experiments Investigating Fluoropolymer Interactions 
A field test was designed to identify the source of fluoride in the BH77 and BH60 water samples. 
The two competing hypotheses were that the fluoride source was introduced materials or that the 
fluoride source was in the host rock. Introduced materials that are potential sources of HF 
include fluoroelastomer synthetic rubber and Teflon. The fluoroelastomer was used to make 
pneumatic packers to isolate test zones and the Teflon tubing was used to draw water and steam 
from the test zones. The principle of the experiment was to introduce fluoride-containing 
materials into high-temperature boreholes that had not previously contained such materials . 
Two boreholes in the DST array that had not been instrumented for water collection or 
temperature measurement were selected for the field test. Boreholes 72 and 55 are nearly 
parallel to BH77 and BH60, respectively, and are also close to wing heaters (Figure 6.3.4.1-1). 
The boreholes were prepared for pretest characterization by removing the previously installed 
SEAMIST liners. The temperature in boreholes 72 and 55 was measured at 5-foot (1.5 m) 
intervals to determine the ideal (hottest) zone to introduce the test assemblies. 
After baseline fluid samples were collected on 11/26/01, a rigid push rod was used to position a 
Teflon sampling tube and various fluoroelastomer samples in the highest temperature zone of 
BH72. The fluoroelastomer samples included sections cut from packer 3 removed from BH60, 
sections from an unused Single Heater Test packer, and test batch sections of fluoroelastomer 
produced prior to the full production run for the DST packers. Metal components of the sample 
string were made of C276 alloy because its corrosion resistance would minimize interference 
with the test. The sampling port was located at a depth of 78.08 ft (23.8 m). 
The sampling apparatus installed in BH55 was designed to collect control samples and was 
constructed of C276 alloy steel tube using no packer materials. The sampling port at the end of 
the tube was located at a depth of 71.75 ft (21.87 m). 
Field analyses and laboratory fluoride analyses (DTNs: LL020405123142.019 [DIRS 159307], 
SN0208F3903102.003 [DIRS 170620]) are summarized in Table 6.3.4.5-3. Additional data for 
BH72 and BH55 that predate the HF field test are also included. Pretest analyses for BH55 
suggest that the test zone was contaminated with remaining SEAMIST materials and residue 
from the drill rig. The small sample volumes collected during each pretest event made it difficult 
to thoroughly flush the tubing, increasing the chances of field contamination. The baseline 

sample collected on 11/26/01 had relatively low fluoride, so BH55 offered a viable test zone for 
collection of control samples. 
Laboratory Experiments Investigating Fluoropolymer Interactions 
Laboratory tests were designed to investigate the tendencies of introduced and natural materials 
to release HF and to establish which of the materials is the most likely source of HF gas in the 
DST. Laboratory testing consisted of two parts: 
1. A gas flow-through system developed at Lawrence Berkeley National Laboratory 
which functions in two ways: 
a. as a recirculation loop in which steam from a boiling reservoir is passed through a 
reaction chamber containing the materials of interest at the desired temperature, 
with periodic collection of liquid from the reservoir; 
b. as a single-pass gas-flow system (air scrubbing) in which ambient-temperature 
air passes through the heated reaction chamber and then is bubbled through water 
at ambient temperature to collect any HF gas. Because HF partitions strongly into 
the aqueous phase at low temperatures, capture of the HF gas (if present) should 
be nearly quantitative. 
2. Thermogravimetric analysis (TGA) of fluoroelastomers at Lawrence Livermore 
National Laboratory provides a quantitative determination of short-term bulk 
decomposition rate as a function of temperature. 
Gas Flow-Through Experiments 
Laboratory experiments were performed in an array of flow-through reaction chambers 
containing seven samples of natural and man-made materials. An eighth, empty chamber served 
as a control. The materials were held in sample chambers at 140C and 170C. The seven 
chambers each contained known quantities of crushed tuff, fluoroelastomer, fluorite, or Teflon. 
Sample chambers were constructed from one-inch outside diameter tubing and contained a fine 
wire mesh underlain by a coarse wire mesh at the top and bottom to contain sample materials. A 
500-mL water reservoir was located below the sample chamber. 
Two sets of experiments were performed. For the first suite of experiments, the water reservoirs 
were filled with deionized water maintained at 105C. The top of the chamber and the reservoir 
were connected by a recirculation tube exposed to ambient temperature. Concern about potential 
vapor lock in the " recirculation tube led to its replacement with a " tube. The tests then were 
restarted using the same samples in the chambers but with fresh deionized water in the water 
reservoirs. The initial flow-through test with the " tube is referred to as Experiment LBNL-1a, 
and the subsequent test with the " tube is Experiment LBNL-1b. 
A second suite of experiments was conducted using the same equipment except that the 
recirculation tube at the top of the chamber was replaced with a connection to an air supply. The 
chamber below the sample chamber contained only air. Air was injected in the top of the sample 
chamber and allowed to flow across the heated samples maintained at the same temperatures as 

in the first experiments. The sample valve at the base of the lower chamber controlled the rate at 
which air flowed through the reaction cell. The air outlet was connected by Tygon tubing to a 
30-mL bottle filled with deionized water. Water samples were analyzed for fluoride by ion 
chromatography, and H was measured with a calibrated pH electrode. This air scrubbing 
experiment is referred to as Experiment LBNL-2. 
Fluoride and pH measurements (DTN: LB0211DSTRBRDG.001 [DIRS 170566]) for the gas 
flow-through experiments are listed in Table 6.3.4.5-4. Experiment LBNL-1a and LBNL-1b 
data show that in a two-phase water environment at elevated temperatures, levels of aqueous 
fluoride greater than 1 ppm were generated only in the presence of fluoropolymer or fluorite. 
The fluoroelastomer and fluoroelastomer + tuff experiments produced up to 4.7 ppm fluoride at 
140C and up to 6.4 ppm fluoride at 170C. The range of final pH values for the introduced-
material samples at both temperatures, 4.2 to 5.9, is significantly lower than for the tuff and tuff 
and fluorite samples, 7.2 to 9.1. 
Experiment LBNL-2, which duplicated the low relative-humidity gas scrubbing that would occur 
during DST field sampling, showed large differences in aqueous fluoride concentrations and pH 
between the fluoroelastomer-loaded experiments and all other sample loads (Table 6.3.4.5-4). 
The 170C fluoroelastomer run generated water with 851 ppm fluoride at pH 2.1 after one day. 
This concentration is two to four orders of magnitude greater than concentrations obtained for 
other materials at 170C and for all materials, including fluoroelastomer, at 140C, suggesting a 
strong temperature dependence of HF release. 
Thermogravimetric Analysis Experiments 
TGA was performed on BH72 and BH60 fluoroelastomers. Dynamic heating experiments were 
conducted at a heating rate of 20C/min over the range of 23C to 600C to determine general 
patterns of weight loss with temperature. Multistep isothermal tests were run with argon as the 
purge gas to conduct gaseous effluents for collection in deionized water. Samples were single 
pieces of fluoroelastomer with nominal dimensions of 3 mm  3 mm  0.8 mm and masses of 15 
to 25 mg. Samples were equilibrated at 100C to evaporate any water present in the samples. 
They were then heated at variable heating rates to 120C, 150C, and 180C, respectively. 
Isothermal heating then proceeded at each of these temperatures to probe the longer term effects 
of heating on thermal degradation rates. 
The results (DTN: LL030605512251.064 [DIRS 170572]) are summarized in Table 6.3.4.5-5. 
Degradation rates were calculated in terms of micrograms (g) of material lost per hour per 
milligram (mg) of original sample. In general, degradation rates increased with increasing 
temperature. Lower rates were observed for the two larger samples of BH60 fluoropolymer, 
indicating a surface area dependence for the degradation rates. 
Laboratory Experiments Investigating Chloropolymer Interactions 
Laboratory investigations of chloropolymer (neoprene) packer material were begun after the 
fluoroelastomer studies were completed. The design of the laboratory experiments was derived 
in part from a subset of the experiments with fluoroelastomer, taking into account that the 
chloride-generating effects in the DST had occurred at or below boiling temperatures. 

Air flow-through tests with ground chloropolymer (neoprene from a BH60 packer) and crushed 
tuff were performed in experimental setups similar to the air scrubbing experiments with 
fluoropolymer. Tests were conducted at 190C (reduced to 150C after 24 hours, then restarted 
with new material at 130C) and 90C. Similar tests were conducted with crushed tuff and 
empty test chambers. The tests ran for up to 407 hours. Water samples were collected 
periodically and analyzed for pH, chloride, fluoride, bromide, nitrate, and sulfate. Follow-up 
tests were performed to identify a lower-temperature threshold for detectable pH effects. Test 
chambers with ground neoprene and empty chambers were maintained at 34C or 47C for about 
577 hours. Then, the test chamber temperatures were raised to 59C and 71C and maintained 
for about 430 hours. Water pH values were measured weekly. 
The pH values (DTN LB0302NEOPDGRD.001 [DIRS 170567]) for water samples from test 
chambers containing neoprene were lower than for other water samples (Figure 6.3.4.5-3). 
Higher temperatures led to a greater lowering of pH, but the effect was not instantaneous. 
Similarly, water samples from the higher-temperature test chambers with neoprene had very high 
chloride concentrations (DTN LB0302NEOPDGRD.001 [DIRS 170567]) after an initial lag time 
(Figure 6.3.4.5-4). Sulfate was detected in water samples from neoprene tests at 90C and 
130C, also after a lag time. Neither bromide nor nitrate was detected in any tests. 
6.3.4.5.4 Summary and Conclusions 
Water samples from the DST with elevated contents of fluoride or chloride and generally low pH 
are attributed to fluid interactions with borehole pneumatic packers made of fluoroelastomer or 
chloroelastomer. Field and laboratory tests with fluoroelastomer and chloroelastomer do not 
trace fluoride and chloride in DST water samples directly to packer degradation, but the results 
do support the interpretation that introduced materials have affected the chemistry of some water 
samples. A general inference from the experiments is that geochemical interactions between 
packer materials and borehole fluids required specific combinations of introduced materials, 
thermal environments, and fluid behavior. 
Fluoroelastomer packers degrade at temperatures =150C, releasing hydrogen fluoride gas. At 
these temperatures, water is present only as vapor. When the borehole interval is sampled, the 
water vapor cools and condenses in the sampling tube and the hydrogen fluoride dissolves in the 
condensate. The resulting liquid contains low to moderate quantities of dissolved tuff 
constituents, but has high fluoride content and low pH. Water samples affected by this process 
were collected in borehole intervals 60/2, 60/3, 77/2, 77/3, and possibly 186/3. 
Chloroelastomer packers degrade in an oxygen-rich environment (e.g., air), releasing gaseous 
hydrogen chloride. The hydrogen chloride is scavenged by liquid water and condensing steam in 
subboiling environments, producing water with high chloride and sulfate and moderately low 
pH. The existence of a temperature gradient along the packed-off interval may enhance the 
efficiency of this process. Effects of neoprene degradation are most pronounced at temperatures 
=71C. This process may be active only under conditions where liquid water, derived perhaps 
from draining of fractures, is present in the packed-off borehole interval. Water samples affected 
by this process were collected in borehole intervals 59/2, 59/4, and 75/2. 

Experimental results showed that interactions of tuff and heated water or vapor, without 
introduced materials, did not produce waters with high fluoride or chloride content. The 
evidence of introduced-materials effects on the chemistry of water samples underscores the 
importance of investigating long-term materials stability in heated environments with water or 
water vapor. 
6.3.5 DST Miscellaneous Measurements 
This section discusses additional DST measurements not covered in the prior four DST sections. 
Specifically, fracture mapping and borehole video logging are discussed. Detailed discussion of 
these measurements is documented in the report entitled Ambient Characterization of the Drift 
Scale Test Block (CRWMS M&O 1997 [DIRS 101539]). Miscellaneous measurement Input and 
Summary DTNs are listed in Tables 4-3 and 6.3-1, respectively. 
6.3.5.1 Fracture Mapping 
The objective of geologic mapping in the DST block was to determine the vertical and horizontal 
variability of fracture networks and lithophysal zones and to identify values for parameters to be 
used for rock-mass classification. 
Mapping was done essentially to the same standards used in the ESF main drift, using technical 
procedure NWM-USGS-G-32 (see DTN: GS970608314224.006 [DIRS 158429]). From these 
procedures, the USGS/USBR used full-periphery mapping techniques and detailed line surveys 
(DLSs) to characterize the rock and fractures in the DST area. 
6.3.5.1.1 Results: Fracture Mapping 
Full-periphery geotechnical maps for the DST connecting drift are presented in Figures 7-1 
through 7-3, and Figures 7-4 through 7-6 for the DST heated drift in Ambient Characterization of 
the Drift Scale Test Block Report (CRWMS M&O 1997 [DIRS 101539]). The lithology of the 
unit consists of densely welded, devitrified tuff of rhyolitic composition, containing vapor-phase 
minerals and about 1 percent phenochrysts, chiefly feldspar and biotite. Matrix colors are a 
variable mixture of reddish purple (5RP5/2) or pale red (5R4/2) and light brown (5YR5/6) with 
wisps of very light gray (N8). Pumice (less than 5 percent) is mostly less than 20 mm, 
spherulitic, and grayish brown (5YR3/2) to very light gray (N8). Volcanic lithics (12 percent) 
are light gray (N8), less than 10 mm in size, and locally have very light gray (N8) rims. 
Lithophysae are rare (less than 1 percent) and range in size up to 80 mm, with vapor-phase 
minerals and very light gray (N8) rims and spots. Short (1020 cm), discontinuous, 
subhorizontal vapor phase partings are present throughout the unit, while the more developed 
subhorizontal partings from bedding-plane features are on the order of meters apart. 
6.3.5.1.2 Measurement Uncertainty: Fracture Mapping 
Uncertainty associated with DST fracture mapping is similar to that discussed in Section 
6.1.4.1.2. 

6.3.5.2 Borehole Video Logging 
The objective of borehole video logs was to provide descriptive visual information from 
boreholes in the DST block and to supplement other available characterization data. Borehole 
video logs were also used to help select appropriate depths for packer settings for air 
permeability testing. 
6.3.5.2.1 Results: Borehole Video Logging 
Borehole video logs provide much visual information regarding fractures, including aperture 
size, fracture frequency, and fracture orientation. Videos can be acquired by referring to the 
Input DTN cited in Table 4-3 (DTN: LARO831422AQ97.002 [DIRS 158431]). 
6.3.5.2.2 Measurement Uncertainty: Borehole Video Logging 
These observations are inherently subjective, which results in unquantifiable uncertainty. Also, 
determination of orientation and location of the video monitor may be flawed. 
6.3.5.3 Waste Package Materials 
Coupons of candidate waste package materials (at the time the DST heating phase was started) 
were placed at strategic locations such as hot/dry locations near heaters and warm/wet regions in 
the condensation zones in hydrological boreholes and in the heated drift. These coupons 
consisted of one of three materials (Alloy 22, carbon steel, and Monel-400). The coupons were 
tested before the heating phase and will be tested after the cooling phase to evaluate their 
corrosion potential. Also included in the hydrological boreholes were concrete samples that are 
not considered waste package materials. Slight corrosion is anticipated in these waste package 
materials during the DST. 
Discussions of these unqualified corrosion measurements of waste package materials are 
included in this report for completeness. 
6.3.5.4 Microbiological Investigations 
The purpose of including the microbial experiments in the DST is to obtain complex process 
level information about survival and migration of microbes in an environment analogous to a 
radioactive waste repository. It is considered advantageous to evaluate microbiological response 
in terms of thermal, hydrological, mechanical and chemical behavior. With the goal of 
understanding the significance of microbial survival and migration in this geological repository 
environment, the following tests were designed: 
1. 
Survival/migration test: borehole emplacement of labeled microbes 
2. 
Survival/migration test: heated drift emplacement of labeled microbes 

3. 
Survival/material-microbe-rock interaction test: carbon steel-microbe-rock and carbon 
steel-microbe-concrete 
4. 
Sterile collection and freezing of preheating rock sample. 
All tests were conducted with microbes that are indistinguishable from the microbes that are 
present in the rock surrounding the DST block. A nonaltering label was added to the microbes 
that acts as a tracking device to monitor their progress. The microbes are not pathogenic and 
have been collected and isolated for the Yucca Mountain Project during the excavation of the 
ESF. 
The total number of microbes that have been installed are far less than the number of microbes 
that have been unintentionally introduced during the construction of the DST. Locations of 
installation points include the heated drift and select borehole locations. 

INTENTIONALLY LEFT BLANK 

Source: CRWMS M&O 1998 [DIRS 111115], Section 3.1. 
Figure 6.3-1. DST As-Built Plan View with Two-Dimensional Coordinates of Key Locations
DTN: MO0002ABBLSLDS.000 [DIRS 147304]. 
NOTE: Schematic is prepared from coordinates based on an origin located at the center of the heated drift bulkhead. 
Figure 6.3-2. Drifts and Boreholes of the DST 

DTN: MO0002ABBLSLDS.000 [DIRS 147304]. 
NOTE: Schematic is prepared from coordinates based on an origin located at the center of the heated drift bulkhead. 
Figure 6.3-3. Temperature (RTD) Boreholes of the DST 
DTN: MO0002ABBLSLDS.000 [DIRS 147304]. 
NOTE: Schematic is prepared from coordinates based on an origin located at the center of the heated drift bulkhead. 
Figure 6.3-4. Hydrology Boreholes of the DST 

DTN: MO0002ABBLSLDS.000 [DIRS 147304]. 
NOTE: Schematic is prepared from coordinates based on an origin located at the center of the heated drift bulkhead. 
Figure 6.3-5. Mechanical (MPBX) Boreholes of the DST 
DTN: MO0002ABBLSLDS.000 [DIRS 147304]. 
NOTE: Schematic is prepared from coordinates based on an origin located at the center of the heated drift bulkhead. 
Figure 6.3-6. Neutron GPR Boreholes of the DST 

DTN: MO0002ABBLSLDS.000 [DIRS 147304]. 
NOTE: Schematic is prepared from translated coordinates based on an origin located at the center of the heated 
drift bulkhead. 
Figure 6.3-7. Chemical (SEAMIST) Boreholes of the DST 

DTN: MO0002ABBLSLDS.000 [DIRS 147304]. 
NOTE: Schematic is prepared from translated coordinates based on an origin located at the center of the heated drift 
bulkhead. 
Figure 6.3-8. ERT Boreholes of the DST 

TDR-MGR-HS-000002 REV 00 F6.3-6 September 2004 
030609012015018021024002004006008001000120014001600Time (Days)
Total Power (Kilowatts)
050100150200Temperature (C)
Drift Wall TemperatureTotal PowerEnd of Heating Phase 
Approx. Thermal Sensor Location 
(Not to Scale) 
Plan ViewProfileODCDHD..TC-19TC-19Dec. 3, 1997 
DTN: MO0406SEPDSTHP.000 [DIRS 170615]. 
Figure 6.3.1.1-1. Total Power and Representative Drift Wall Temperature (TC-19) during the DST 
Heating Phase 
050100150200250-20-1001020304050Distance (m)Temperature (oC)
200 Days400 Days600 Days800 Days1000 Days1200 Days1400 Days1503 Days 
DTN: MO0208RESTRDST.002 [DIRS 161129]. 
Figure 6.3.1.2-1. Temperature Profile along DST Borehole 79 at Select Times 

TDR-MGR-HS-000002 REV 00 F6.3-7 September 2004 
050100150200250-20-1001020304050Distance (m)
Temperature (oC)
200 Days400 Days600 Days800 Days1000 Days1200 Days1400 Days1503 Days 
DTN: MO0208RESTRDST.002 [DIRS 161129]. 
Figure 6.3.1.2-2. Temperature Profile along DST Borehole 80 at Select Times 
05010015020025002004006008001000120014001600Time (Days)
Temperature(oC)
RTD-1RTD-10RTD-20RTD-30RTD-40RTD-50RTD-60 
DTN: MO0208RESTRDST.002 [DIRS 161129]. 
Figure 6.3.1.2-3. Temperature Histories for DST Borehole 158 at Selected Locations 

TDR-MGR-HS-000002 REV 00 F6.3-8 September 2004 
0501001502002500510152025Distance (m)
Temperature (oC)
200 Days400 Days600 Days800 Days1000 Days1200 Days1400 Days1503 Days 
DTN: MO0208RESTRDST.002 [DIRS 161129]. 
Figure 6.3.1.2-4. Temperature Profile along DST Borehole 158 at Select Times 
Borehole 16405010015020025002004006008001000120014001600Time (Days)
Temperature (oC)
RTD-1RTD-10RTD-20RTD-30RTD-40RTD-50RTD-60RTD-67 
DTN: MO0208RESTRDST.002 [DIRS 161129]. 
Figure 6.3.1.2-5. Temperature Histories for DST Borehole 164 at Select Locations 

TDR-MGR-HS-000002 REV 00 F6.3-9 September 2004 
Borehole 1640501001502002500510152025Distance (m)
Temperature (oC)
200 Days400 Days600 Days800 Days1000 Days1200 Days1400 Days1503 Days 
DTN: MO0208RESTRDST.002 [DIRS 161129]. 
Figure 6.3.1.2-6. Temperature Profile along DST Borehole 164 at Select Times 
4 years3 years2 years1 yearRTD LocationScalemeters051015 
DTN: MO0208RESTRDST.002 [DIRS 161129]. 
Figure 6.3.1.2-7. Vertical Slice Through the Mid-Length of the DST Heated Drift Showing 95 0C 
Temperature Contours after 1, 2, 3, and 4 Years of Heating 

0 105 15 
le 
i1 year 
2 years 
3 years 
4 years 
meters 
ScaRTD Locaton 
DTN: MO0208RESTRDST.002 [DIRS 161129]. 
Figure 6.3.1.2-8. Vertical Slice Through the Longitudinal Axis of the DST Heated Drift Showing 95 0C 
Temperature Contours after 1, 2, 3, and 4 Years of Heating 

DTN: LL00804023142.009 [DIRS 158325]. 
Figure 6.3.2.1-1. The DST ERT Resistivity Ratios of the 1/10/00 Measurement to the Preheating 
Measurement 

DTN: LL000804023142.009 [DIRS 158325]. 
Figure 6.3.2.1-2. The DST Saturation Ratio Calculated from the 1/10/00 Resistivity Ratio 

DTN: LB0208GPRDSTHP.001 [DIRS 170577]. 
Figure 6.3.2.2-1. GPR Difference Velocity Tomograms for DST Borehole Pairs 51-50 and 50-49 

0 
) 
) 
) 
) 
-0.16 
-0.14 
-0.12 
-0.1 
-0.08 
-0.06 
-0.04 
-0.02 
0.02 
0.04 
11/19/98 (1 year12/16/99 (2 years11/29/00 (3 years12/11/01 (4 yearsDifference Fraction Volume Water Content 
0 5 10152025303540 
Depth from Collar, m 
DTN: LL020710223142.024 [DIRS 159551] (filename: N08hv.xls). 
Figure 6.3.2.3-1. Difference Fraction Volume Water Content Measured in DST Borehole 66 Using 
Neutron Logging (November 19, 1998, to December 11, 2001) 

TDR-MGR-HS-000002 REV 00 F6.3-15 September 2004 
-20246810121416020406080100120140160180200Temperature (C)
Volume Water Content (%) 
DTN: MO0406SEPTVDST.000 [DIRS 170616]. 
Figure 6.3.2.3-2. Rock Moisture Content as a Function of Temperature as Measured from Neutron 
Logging of Boreholes 79 and 80 during the DST Heating Phase 
0 
0.5 
1 
1.5 
2 
2.5 
10/19/97 6/1/98 1/12/99 8/25/994/6/00 11/17/006/30/01 2/10/02 
Date 
57-157-257-357-458-158-258-359-159-259-359-460-160-260-360-461-161-261-361-4k/kpre-heating 
DTN: LB0208AIRKDSTH.001 [DIRS 160897]. 
Figure 6.3.2.4-1. Changes In Permeability Displayed as a Ratio to the Preheating Permeability Estimate 
for DST Boreholes 57 Through 61 

0 
0.2 
0.4 
0.6 
0.8 
1 
1.2 
1.4 
1.6 
1.8 
2 
k/k74-1 
74-2 
74-3 
74-4 
75-1 
75-2 
75-3 
75-4 
76-1 
76-2 
76-3 
76-4 
77-1 
78-1 
78-2 
78-3 
78-4 
pre-heating 
10/19/97 6/1/98 1/12/99 8/25/99 4/6/00 11/17/00 6/30/01 2/10/02 
DTN: LB0208AIRKDSTH.001 [DIRS 160897]. 
Figure 6.3.2.4-2. Changes In Permeability Displayed as a Ratio to the Preheating Permeability Estimate 
for DST Boreholes 74 Through 78 
3.5
3
185-1 
185-2 
185-3 
185-4 
186-1 
186-2 
186-3 
186-4 
2.5 
2 
1.5 
1 
0.5 
0 
10/19/97 6/1/98 1/12/99 8/25/99 4/6/00 11/17/00 6/30/01 2/10/02 
k/kpre-heating 
DTN: LB0208AIRKDSTH.001 [DIRS 160897]. 
Figure 6.3.2.4-3. Changes In Permeability Displayed as a Ratio to the Preheating Permeability Estimate 
for DST Boreholes 185 and 186 

TDR-MGR-HS-000002 REV 00 F6.3-17 September 2004 
Hole 75 - Temp203040506070809010011002004006008001000120014001600Days since heater activationTemperature (C)
75-TEMP-175-TEMP-275-TEMP-375-TEMP-4 
DTN: LB0208H2ODSTHP.001 [DIRS 170579]. 
Figure 6.3.2.4-4. Passive Monitoring Temperature Data for DST Borehole 75 

DTN: LL981109904242.072 [DIRS 118959]. 
Figure 6.3.2.5-1. Electrical Resistivity of DST Samples as Function of Saturation in the Drying Cycle at 
50C 
DTN: LL981109904242.072 [DIRS 118959]. 
Figure 6.3.2.5-2. The Relative Permittivity of the DST Samples as a Function of Saturation in the Drying 
Cycle at 50C 

DTN: MO0002ABBLSLDS.000 [DIRS 147304] 
NOTE: Schematics are prepared from translated coordinates based on an origin located at the center of the heated 
drift bulkhead. Wing heaters are plotted in red; MPBX boreholes and anchors are plotted in blue. 
Figure 6.3.3.1-1. DST MPBX Layout 
DTN: SN0207F3912298.037 [DIRS 162046] (unqualified). 
Figure 6.3.3.1-2. DST Displacements from Borehole 81 (MPBX1) 

DTN: SN0207F3912298.037 [DIRS 162046] (unqualified). 
Figure 6.3.3.1-3. DST Displacements from Borehole 154 (MPBX7) 
DTN: SN0207F3912298.037 [DIRS 162046] (unqualified). 
Figure 6.3.3.1-4. DST Displacements from Borehole 155 (MPBX8) 

DTN: SN0207F3912298.037 [DIRS 162046] (unqualified). 
Figure 6.3.3.1-5. DST Displacements from Borehole 156 (MPBX9) 
DTN: SN0207F3912298.037 [DIRS 162046] (unqualified). 
Figure 6.3.3.1-6. DST Displacements from Borehole 157 (MPBX10) 

DTN: SN0207F3912298.037 [DIRS 162046] (unqualified). 
Figure 6.3.3.2-1. DST Displacements from CDEX-1 and CDEX-2 
Source: CRWMS M&O 1998 [DIRS 108306]. 
Figure 6.3.3.3-1. Layout and Location of DST Strain Gage Rosettes on the Concrete Liner 

DTN: SN0208F3912298.038 [DIRS 170610] (unqualified). 
Figure 6.3.3.3-2. Axial Strains Measured by the Strain Gages on the DST Concrete Liner 

TDR-MGR-HS-000002 REV 00 F6.3-24 September 2004 
-30-20-100102030-1001020304050Y (meters)
0 to 11 to 22 to 33 to 44 to 55 to 66 to 77 to 8Heated DriftProfile 
DTN: LB0208ACEMDSTH.001 [DIRS 170575]. 
Figure 6.3.3.4-1. Location of DST Microseismic Activity (Acoustic Emissions) between December 21, 
1998, and July 02, 2000 

DTNs: MO0002ABBLSLDS.000 [DIRS 147304], SN0208F3903102.002 [DIRS 161246]. 
Figure 6.3.4.1-1. Three Arrays of DST Hydrology Boreholes Showing Relative Packer Positions and 
Fluid Sampling Zones. 

0 
1 
2 
3 
4 
5 
6 
7 
8 
9 
234 U / 238 U activity ratio 
0.001 0.01 0.1 1 10 100 
U concentration (ng/g) 
80 
59-2 59-3 59-4 60-2 
60-3 186-3 Tptp pore w ater 
WT-24 perched w ater UZ-14 perched w ater 
DTN: GS011108312322.008 (DST and Pore Water) [DIRS 159136], GS010808312322.004 (WT-24 Water) 
[DIRS 156007], GS010608315215.002 (UZ-14 Water) [DIRS 156187]. 
NOTE: Analytical errors are typically smaller than the size of the symbols. Pore waters and perched waters shown 
for comparison. 
Figure 6.3.4.4-1. Uranium Concentrations and Isotopic Compositions of Water Samples Collected from 
the DST 

1 
80 
0.0001 
0.001 
0.01 
0.1 
U concentration, ppb 
186-3 
59-2 
59-3 
59-4 
60-2 
60-3 
1/5/ 1998 7/24/1998 2/9/ 1999 8/28/1999 3/15/ 2000 10/1/ 2000 4/19/2001 11/5/2001 
Collection Date 
1 
2 
3 
4 
5 
6 
U / 
80 
234 238 U activity 
60-3 
186-3 
59-2 
60-2 
59-3 
59-4 
1/5/1998 7/24/1998 2/9/1999 8/28/1999 3/15/2000 10/1/2000 4/19/2001 11/5/2001 
Collection Date 
DTN: GS011108312322.008 [DIRS 159136]. 
Figure 6.3.4.4-2. U Concentration (upper) and 234U/238U Activity Ratios (lower) in DST Samples Plotted 
versus Collection Date 
TDR-MGR-HS-000002 REV 00 F6.3-27 September 2004 

DTNs: GS011108312322.009 [DIRS 159137], GS960908315215.012 [DIRS 169552], GS010908315215.005 
[DIRS 169553], GS990308315215.004 [DIRS 145711], GS040508312272.002 (unqualified) [DIRS 169629], 
GS990308315215.003 [DIRS 145707]. 
a) The calcite field should extend to overlap the pore water field. 
b) Tptpul-Tptpmn (SD-9) Today range determined from samples row numbers 47 and 55 in DTN 
GS990308315215.004 [DIRS 145711] 
c) Tptpul-Tptpmn (SD-9) Pore Water range determined from row numbers 11 and 42 in DTN 
GS990308315215.004 [DIRS 145711] 
d) The Tptpul-Tmtpmn (SD-9) 87Sr/86Sr at the time of eruption (12 Ma before present) was derived from the following 
equation: 
.
.
87 Sr 
87 Sr 
87 Rb
)
(
.
. 
e.t - 1 
t 
where: 
t = time before present (12x106 years) 
..
+
= 
(Faure 1986[DIRS 105559], Equation 8.3) 
86 Sr 
86 Sr 
86Sr 
.
= decay constant of 87Rb (0.0142/1x109 years) 
87Rb/86Sr determined from the weight ratio of Rb/Sr using equation 8.4 in Faure (1986 
.
[DIRS 105559]) 
Rb and Sr concentrations from rows 22 and 24 in DTN GS990308315215.003 
[DIRS 145707]; Sr ratios from rows 47 and 53 in DTN GS990308315215.004 [DIRS 145711] 
Figure 6.3.4.4-3. Strontium Isotope Ratio Compositions of Water Samples Collected from DST 
Boreholes Compared to Compositions of Pore Water, Rock, Calcite, and Grout 

70 
75 
80 
85 
90 
95 
100 
Temperature (C)
150 mL 
180 mL 
120 mL280 mL40 mLTrace10 mLHeater shut 
off 1/14/02 
Dry Lower end 
of zone 
temperature 
Upper end 
of zone 
temperature 
1450 1500 1550 1600 1650 1700
Elapsed Time from Test Start (days) 
DTNs: LB0401PRTDSTHP.009 [DIRS 169250], LB0401PRTDSTCP.001 [DIRS 170568], LB0401PRTDSTCP.002 
[DIRS 170569], SN0210F3903102.004 [DIRS 170573], SN0211F3903102.005 [DIRS 170574]. 
NOTE: The temperature history for the lower end of the zone is derived from a temperature sensor at the upper 
end of zone 75-1. 
Figure 6.3.4.5-1. Thermal History and Water Recovery in Borehole 75, Zone 2 

DTNs: GS030408312272.002 [DIRS 165226], LL020709923142.023 [DIRS 161677] (unqualified), 
LL030305023121.023 [DIRS 170570]. 
NOTE: A) Analyses with low to moderate chloride contents. B) Analyses with moderate to high chloride contents. 
Unlabeled points at lower left are 75-2 (6/26/02) and 59-2 (8/9/99, two points), also shown in A. Range of 
plot A is shown as inset in plot B. 
Figure 6.3.4.5-2. Sodium Versus Chloride for Water Analyses from the DST 

0 
1 
2 
3 
4 
5 
6 
7 
8 
9 
pH 
Tuff 90C 
Tuff 190C 
Tuff 130C 
Empty 90C 
Empty 130C 
Empty 190C 
Neoprene 90C 
Neoprene 130C 
Neoprene 190C 
0 100 200 300 400 500 600
Time (hours) 
DTNs: LB0302NEOPDGRD.001 [DIRS 170567]. 
Figure 6.3.4.5-3. The pH Values of Water Samples from the Flow-Through Test 

0 
1 
2 
3 
4 
5 
6 
7 
(ppm) 
0 
(ppm), i] 
Chloride2000 
4000 
6000 
8000 
10000 
12000 
14000 
16000 
18000 
20000 
Chloride[data points wth arrowsTuff 90C 
Tuff 130C 
Tuff 190C 
Empty 90C 
Empty 130C 
Neoprene 90C 
Neoprene 130C 
Neoprene 190C 
0 50 100 150 200 250 300 350 400 
Time (hours) 
DTN: LB0302NEOPDGRD.001[DIRS 170567]. 
NOTE: Values for symbols with arrows are read on right-hand scale. Nondetectable concentrations plotted as 
zero (some of which do not show) include Neoprene 190C at 7.67 hours (<500 ppm); Empty 190C, Tuff 
190C, and Empty 90C at 23.03 hours (<0.5 ppm); Tuff 190C at 71.33 hours (<0.5 ppm); Empty 90C at 
88.33 hours (<0.5 ppm); Empty 130C at 246.33 hours (<0.5 ppm); and Empty 90C at 334.67 hours (<0.5 
ppm). 
Figure 6.3.4.5-4. Chloride Concentrations for Water Samples from the Flow-Through Test 

Table 6.3-1. DTNs for the Drift Scale Test 
Input DTN [DIRS] 
Input DTN 
Description 
Input DTN 
Text Location Summary DTN 
Summary DTN 
Description 
LA9908FH6001WP.001a [DIRS Data Collection System Data 6.3 Unchanged DTN Unchanged DTN 
158319] 
LA0111FH831151.002a [DIRS Data Collection System Data 6.3 Unchanged DTN Unchanged DTN 
158317] 
LA0208FH831151.001a [DIRS Data Collection System Data 6.3 Unchanged DTN Unchanged DTN 
159515] 
LA0208FH831151.002a [DIRS Data Collection System Data 6.3 Unchanged DTN Unchanged DTN 
159308] 
LA0108FH831151.001a [DIRS Data Collection System Data 6.3 Unchanged DTN Unchanged DTN 
158316] 
LA0111FH831151.001a [DIRS Data Collection System Data 6.3 Unchanged DTN Unchanged DTN 
169386] 
LA0111FH831151.003a [DIRS Data Collection System Data 6.3 Unchanged DTN Unchanged DTN 
158318] 
MO0002ABBLSLDS.000 [DIRS XYZ Coordinates of 6.3 MO0208RESTRDST.002 Heater Power and 
147304] Boreholes and Sensors [DIRS 161129] Temperature Data 
MO9807DSTSET01.000 [DIRS Heater, Power, Current, 6.3.1.1 
113644] Voltage, Temperature: 6.3.1.2 
November 7, 1997  May 
1998 
MO9810DSTSET02.000 [DIRS Heater, Power, Current, 6.3.1.1 
113662] Voltage, Temperature: June 6.3.1.2 
1998  August 1998 
MO9906DSTSET03.000 [DIRS Heater, Power, Current, 6.3.1.1 
113673] Voltage, Temperature: 6.3.1.2 
September 1998  May 1999 
MO0001SEPDSTPC.000 [DIRS Heater, Power, Current, 6.3.1.1 
153836] Voltage, Temperature: June 6.3.1.2 
1999  October 1999 
MO0007SEPDSTPC.001 [DIRS Heater, Power, Current, 6.3.1.1 
153707] Voltage, Temperature: 6.3.1.2 
November 1999  May 2000 
MO0012SEPDSTPC.002 [DIRS Heater, Power, Current, 6.3.1.1 
153708] Voltage, Temperature: June 6.3.1.2 
2000  November 2000 
MO0107SEPDSTPC.003 [DIRS Heater, Power, Current, 6.3.1.1 
158321] Voltage, Temperature: 6.3.1.2 
December 2000  May 2001 
MO0202SEPDSTTV.001 [DIRS Heater, Power, Current, 6.3.1.1 
158320] Voltage, Temperature: June 6.3.1.2 
2001  January 14, 2002 
MO0001SEPDSTPC.000 [DIRS Heater, Power, Current, 6.3.1.1 MO0406SEPDSTHP.000 Heater Power and 
153836] Voltage, Temperature: June [DIRS 170615] Temperature Data 
1999  October 1999 
MO0007SEPDSTPC.001 [DIRS Heater, Power, Current, 6.3.1.1 
153707] Voltage, Temperature: 
November 1999  May 2000 
MO0012SEPDSTPC.002 [DIRS Heater, Power, Current, 6.3.1.1 
153708] Voltage, Temperature: June 
2000  November 2000 
MO0107SEPDSTPC.003 [DIRS Heater, Power, Current, 6.3.1.1 
158321] Voltage, Temperature: 
December 2000  May 2001 
MO0202SEPDSTTV.001 [DIRS Heater, Power, Current, 6.3.1.1 
158320] Voltage, Temperature: June 
2001  January 14, 2002 

Table 6.3-1. DTNs for the Drift Scale Test (continued) 
Input DTN [DIRS] 
Input DTN 
Description 
Input DTN 
Text Location Summary DTN 
Summary DTN 
Description 
MO9807DSTSET01.000 
[DIRS 113644 
Heater, Power, Current, 
Voltage, Temperature: 
November 7, 1997  May 
1998 
6.3.1.1 MO0406SEPDSTHP.000 
[DIRS 170615] 
(continued) 
Heater Power and 
Temperature Data 
(continued) 
MO9810DSTSET02.000 
[DIRS 113662] 
Heater, Power, Current, 
Voltage, Temperature: June 
1998  August 1998 
6.3.1.1 
MO9906DSTSET03.000 
[DIRS 113673] 
Heater, Power, Current, 
Voltage, Temperature: 
September 1998  May 1999 
6.3.1.1 
SNL22100196001.006 
[DIRS 158213] 
Thermal Conductivity as 
Function of Saturation 
6.3.1.3 Unchanged DTN Unchanged DTN 
SN0203L2210196.007 
[DIRS 158322] 
Thermal Expansion Thermal 
Conductivity DST Specimens 
6.3.1.3 Unchanged DTN Unchanged DTN 
LL980411004244.060 
[DIRS 159107] 
DST Baseline REKA Probe 
Measurements. 
Temperature Measurements 
using REKA Probes: 
11/14/97 - 7/31/98. 
6.3.1.4 Unchanged DTN Unchanged DTN 
LL980411104244.061 
[DIRS 159111] 
DST Baseline REKA Probe 
Measurements for Thermal 
Conductivity and Diffusivity. 
VA Supporting Data 
6.3.1.4 Unchanged DTN Unchanged DTN 
LL980902104244.070 
[DIRS 159109] 
DST Baseline REKA Probe 
Measurements for Thermal 
Conductivity and Diffusivity. 
Probe 1 from Borehole 153, 
Probe 2 from Borehole 152, 
Probe 3 from Borehole 151. 
6.3.1.4 Unchanged DTN Unchanged DTN 
UN0106SPA013GD.003 
[DIRS 159115] 
DST REKA Probe Acquired 
Data for Thermal 
Conductivity and Diffusivity: 
05/01/1998 to 04/30/2001 
6.3.1.4 Unchanged DTN Unchanged DTN 
UN0109SPA013GD.005 
[DIRS 159117] 
DST Rapid Evaluation of K 
and Alpha (REKA) Probe 
Acquired Data for Thermal 
Conductivity and Diffusivity: 
05/01/2001 to 08/31/2001 
6.3.1.4 Unchanged DTN Unchanged DTN 
UN0112SPA013GD.006 
[DIRS 159118] 
DST REKA Probe Acquired 
Data for Thermal 
Conductivity and Diffusivity: 
09/01/2001 to 12/31/2001 
6.3.1.4 Unchanged DTN Unchanged DTN 
UN0201SPA013GD.007 
[DIRS 159119] 
DST REKA Probe Developed 
Data for Thermal 
Conductivity and Diffusivity: 
05/01/2001 to 12/31/2001 
6.3.1.4 Unchanged DTN Unchanged DTN 

Table 6.3-1. DTNs for the Drift Scale Test (Continued) 
Input DTN [DIRS] 
Input DTN 
Description 
Input DTN 
Text Location Summary DTN 
Summary DTN 
Description 
UN0106SPA013GD.004 DST REKA Probe Developed 6.3.1.4 Unchanged DTN Unchanged DTN 
[DIRS 159116] Data for Thermal 
Conductivity and Diffusivity: 
05/01/1998 to 04/30/2001 
LL000804023142.009 
[DIRS 158325] 
Water Saturation 6.3.2.1 LL020801723142.028b 
[DIRS 170580] 
ERT Tomograms 
LL980108804244.052 Electrical Resistivity 6.3.2.1 
[DIRS 158332] 
LL980406404244.057 Electrical Resistance 6.3.2.1 
[DIRS 113782] Tomography 
LL990702704244.099 Electrical Resistivity 6.3.2.1 
[DIRS 113872] 
LL980808604244.065b Electrical Resistance 6.3.2.1 
[DIRS 113791] Tomography 
LB990630123142.005 
[DIRS 129274] 
Ground Penetrating Radar 
Data 
6.3.2.2 LB0208GPRDSTHP.001 
[DIRS 170577] 
GPR Velocity 
Tomograms 
LB000121123142.004 Ground Penetrating Radar 6.3.2.2 
[DIRS 158338] Data 
LB000718123142.004 Ground Penetrating Radar 6.3.2.2 
[DIRS 153354] Data 
LB0203GPRDSTEH.001 Ground Penetrating Radar 6.3.2.2 
[DIRS 158350] Data 
LB0101GPRDST01.001 Ground Penetrating Radar 6.3.2.2 
[DIRS 158346] Data 
LB0108GPRDST05.001 Ground Penetrating Radar 6.3.2.2 
[DIRS 158440] Data 
LL020710223142.024 Neutron Logging 6.3.2.3 MO0406SEPTVDST.000 Temperature and 
[DIRS 159551] [DIRS 170616] Volume Water Content 
MO0001SEPDSTPC.000 Heater, Power, Current, 6.3.2.3 
[DIRS 153836] Voltage, Temperature: June 
1999  October 1999 
MO0007SEPDSTPC.001 Heater, Power, Current, 6.3.2.3 
[DIRS 153707] Voltage, Temperature: 
November 1999  May 2000 
MO0012SEPDSTPC.002 Heater, Power, Current, 6.3.2.3 
[DIRS 153708] Voltage, Temperature: June 
2000  November 2000 
MO0107SEPDSTPC.003 Heater, Power, Current, 6.3.2.3 
[DIRS 158321] Voltage, Temperature: 
December 2000  May 2001 
MO0202SEPDSTTV.001 Heater, Power, Current, 6.3.2.3 
[DIRS 158320] Voltage, Temperature: June 
2001  January 14, 2002 
MO9807DSTSET01.000 Heater, Power, Current, 6.3.2.3 
[DIRS 113644 Voltage, Temperature: 
November 7, 1997  May 
1998 
MO9810DSTSET02.000 Heater, Power, Current, 6.3.2.3 
[DIRS 113662] Voltage, Temperature: June 
1998  August 1998 
MO9906DSTSET03.000 Heater, Power, Current, 6.3.2.3 
[DIRS 113673] Voltage, Temperature: 
September 1998  May 1999 

Table 6.3-1. DTNs for the Drift Scale Test (Continued) 
Input DTN [DIRS] 
Input DTN 
Description 
Input DTN 
Text Location Summary DTN 
Summary DTN 
Description 
LB980912332245.002 Gas Tracer Data from 6.3.2.4 Unchanged DTN Unchanged DTN 
[DIRS 105593] Niche 3 (also referred to as 
Niche 3107) of the ESF 
LB970600123142.001 Air Permeability 6.3.2.4 Unchanged DTN Unchanged DTN 
[DIRS 105589] 
LB980120123142.005 Active DST Preheating Air 6.3.2.4 Unchanged DTN Unchanged DTN 
[DIRS 114134] Injection, Part 2 of 2 
LB980120123142.004 Active Baseline Air Injections 6.3.2.4 LB0208AIRKDSTH.001 Permeability Data 
[DIRS 105590] in Boreholes 57-61, 74-78, [DIRS 160897] 
185-186 
LB980420123142.002 Active Hydrology Testing for 6.3.2.4 
[DIRS 113706] Boreholes 57-61, 74-78, 185186; 
Air Injection and Gas 
Tracer Tests 
LB980715123142.002 
[DIRS 113742] 
Active Hydrology Testing 
Data (Air Injection) Collected 
from 12 Hydrology 
Boreholes: March 1998 to 
6.3.2.4 
May 1998 
LB981016123142.002 
[DIRS 129245] 
Active Hydrology Testing for 
Boreholes 57-61, 74-78, 185186; 
Air Injection Tests: June 
1998 to August 1999 
6.3.2.4 
LB990630123142.001 Active Hydrology Testing by 6.3.2.4 
[DIRS 129247] Air Injection: September 
1998 to May 1999 
LB000121123142.002 Active Hydrology Testing by 6.3.2.4 
[DIRS 158337] Air Injection: June 1999 to 
October 1999 
LB0203AIRKDSTE.001 
[DIRS 158348] 
Active Hydrology Testing 
Data (Air Injection) Collected 
from 12 Hydrology 
Boreholes: June 1, 2001 to 
6.3.2.4 
January 2002 
LB0108AIRKDST5.001 
[DIRS 158438] 
Active Hydrology Testing 
Data (Air Injection) Collected 
from 12 Hydrology 
Boreholes: December 1, 
6.3.2.4 
2000 to May 31, 2001 
LB0101AIRKDST1.001 
[DIRS 158345] 
Active Hydrology Testing 
Data (Air Injection) Collected 
from 12 Hydrology 
Boreholes: June 1, 2000 to 
6.3.2.4 
November 30, 2000 
LB000718123142.002 Active Hydrology Testing 6.3.2.4 
[DIRS 158341] Data (Air Injection) Collected 
from 12 Hydrology Holes: 
November 1, 1999 to May 
31, 2000 

Table 6.3-1. DTNs for the Drift Scale Test (Continued) 
Input DTN [DIRS] 
Input DTN 
Description 
Input DTN 
Text Location Summary DTN 
Summary DTN 
Description 
LB0401PRTDSTHP.001 Passive Monitoring Data for 6.3.2.4 LB0208H2ODSTHP.001 Passive Hydrological 
[DIRS 169251] Boreholes 57-61, 74-78, 185-[DIRS 170579] Monitoring Data of 
186: Nov 1997 to Feb 1998 Temperature, Relative 
Humidity and Pressure 
in the Hydrology 
Boreholes 
LB0401PRTDSTHP.002 
[DIRS 169252] 
Passive Monitoring Data 
Collected from 12 Hydrology 
Boreholes: March 1998 to 
May 1998 
6.3.2.4 
LB0401PRTDSTHP.009 
[DIRS 169250] 
Passive Monitoring Data 
Collected from 12 Hydrology 
Boreholes: June 1, 2001 
6.3.2.4 
through end of Heating 
Phase Jan. 14, 2002 
LB0401PRTDSTHP.003 Passive Monitoring Data for 6.3.2.4 
[DIRS 169253] Boreholes 57-61, 74-78, 185186 
Taken from June 1998 to 
August 1998 
LB0401PRTDSTHP.004 
[DIRS 169255] 
Passive Monitoring Data 
(Relative Humidity, Pressure, 
Temperature): September 
1998 to May 1999 
6.3.2.4 
LB0401PRTDSTHP.005 
[DIRS 169246] 
Passive Monitoring Data 
(Relative Humidity, Pressure, 
Temperature): June 1 
through October 31, 1999 
6.3.2.4 
LB0401PRTDSTHP.006 
[DIRS 169247] 
Passive Monitoring Data 
Collected from 12 Hydrology 
Boreholes Test: November 1, 
6.3.2.4 
1999 to May 31, 2000 
LB0401PRTDSTHP.007 
[DIRS 169248] 
Passive Monitoring Data 
Collected from 12 Hydrology 
Boreholes: June 1, 2000 to 
6.3.2.4 
November 30, 2000 
LB0401PRTDSTHP.008 Passive Monitoring Data 6.3.2.4 
[DIRS 169249] Collected from 12 Hydrology 
Boreholes: Dec. 1, 2000 to 
May 31, 2001 
LB970500123142.003 
[DIRS 131500] 
Laboratory Saturation, 
Porosity, Bulk Density, 
Particle Density, Gravimetric 
Water Content Data from Dry 
Drilled and wet drilled Cores 
6.3.2.5 Unchanged DTN Unchanged DTN 
in the DST and SHT 
LL020506123142.021 
[DIRS 169256] 
Laboratory Moisture 
Retention and Porosity 
6.3.2.5 Unchanged DTN Unchanged DTN 
LL020502523142.020 Laboratory Measured 6.3.2.5 Unchanged DTN Unchanged DTN 
[DIRS 159105] Electrical Properties of the 
DST Samples as a Function 
of Saturation at 95C 
LL981109904242.072 
[DIRS 118959] 
Saturated and Dry Bulk 
Density Permitivity 
6.3.2.5 Unchanged DTN Unchanged DTN 
SNF39012298002.002 
[DIRS 159114] 
Measurements of 
Displacement Data for the 
Drift Scale Test (with results 
from 11/1/1997 through 
5/31/1998) 
6.3.3.1 
6.3.3.2 
Unchanged DTN Unchanged DTN 

Table 6.3-1. DTNs for the Drift Scale Test (Continued) 
Input DTN [DIRS] 
Input DTN 
Description 
Input DTN 
Text Location Summary DTN 
Summary DTN 
Description 
SNF39012298002.006 MPBX and CDEX 5.2 SN0207F3912298.037b Smoothed 
[DIRS 158419] Displacement June 1998  6.3.3.1 [DIRS 162046] Displacement Data 
August 1998 6.3.3.2 
SNF39012298002.010 MPBX and CDEX 5.2 
[DIRS 158367] Displacement September 6.3.3.1 
1998  May 1999 6.3.3.2 
SN0001F3912298.014 MPBX and CDEX 5.2 
[DIRS 153841] Displacement June 1999  6.3.3.1 
October 1999 6.3.3.2 
SN0203F3912298.033 MPBX and CDEX 5.2 
[DIRS 158361] Displacement June 2001  6.3.3.1 
January 2002 6.3.3.2 
MO0001SEPDSTPC.000 DST Heater Power and 5.2 
[DIRS 153836] Temperature 6.3.1.1 
6.3.1.2 
MO0107SEPDSTPC.003 DST Heater Power and 5.2 
[DIRS 158321] Temperature 6.3.1.1 
6.3.1.2 
MO0002ABBLSLDS.000 DST Borehole and Sensor 6.3.2.4 
[DIRS 147304] Locations 
MO0007SEPDSTPC.001 DST Heater Power and 5.2 
[DIRS 153707] Temperature 6.3.1.1 
6.3.1.2 
MO0012SEPDSTPC.002 DST Heater Power and 5.2 
[DIRS 153708] Temperature 6.3.1.1 
6.3.1.2 
MO0202SEPDSTTV.001 DST Heater Power and 5.2 
[DIRS 158320] Temperature 6.3.1.1 
6.3.1.2 
MO9807DSTSET01.000 DST Heater Power and 5.2 
[DIRS 113644] Temperature 6.3.1.1 
6.3.1.2 
MO9810DSTSET02.000 DST Heater Power and 5.2 
[DIRS 113662] Temperature 6.3.1.1 
6.3.1.2 
MO9906DSTSET03.000 DST Heater Power and 5.2 
[DIRS 113673] Temperature 6.3.1.1 
6.3.1.2 
SNF39012298002.002 MPBX and CDEX 6.3.3.1 
[DIRS 159114] Displacement November 6.3.3.2 
1997  May 1998 
SN0007F3912298.018 MPBX and CDEX 5.2 
[DIRS 158374] Displacement November 6.3.3.1 
1999  May 2000 6.3.3.2 
SN0101F3912298.024 MPBX and CDEX 5.2 
[DIRS 158400] Displacement June 2000  6.3.3.1 
November 2000 6.3.3.2 
SN0107F3912298.029 MPBX and CDEX 5.2 
[DIRS 158408] Displacement December 6.3.3.1 
2000  May 2001 6.3.3.2 
SNL22100196001.003 Thermal Expansion of 6.3.3.1 
[DIRS 111068] Carbon Fiber and Invar Rods 6.3.3.2 

Table 6.3-1. DTNs for the Drift Scale Test (Continued) 
Input DTN [DIRS] 
Input DTN 
Description 
Input DTN 
Text Location Summary DTN 
Summary DTN 
Description 
SNF39012298002.004 MPBX and CDEX 6.3.3.1 SN0407F3912298.060 Rock Mass Thermal 
[DIRS 153837] Displacement Corrected for 6.3.3.2 [DIRS 170627] Expansion 
Thermal Expansion 
November 1997  May 1998 
SNF39012298002.008 MPBX and CDEX 6.3.3.1 
[DIRS 153839] Displacement Corrected for 
Thermal Expansion June 
1998  August 1998 
6.3.3.2 
SN0001F3912298.016 MPBX and CDEX 6.3.3.1 
[DIRS 153842] Displacement Corrected for 
Thermal Expansion June 
1999  October 1999 
6.3.3.2 
SNL22100196001.003 Thermal Expansion of 6.3.3.1 
[DIRS 111068] Carbon Fiber and Invar Rods 6.3.3.2 
SN0101F3912298.026 MPBX and CDEX 6.3.3.1 
[DIRS 158402] Displacement Corrected for 6.3.3.2 
Thermal Expansion June 
2000  November 2000 
MO0001SEPDSTPC.000 DST Heater Power and 6.3.1.1 
[DIRS 153836] Temperature 6.3.1.2 
MO0002ABBLSLDS.000 DST Borehole and Sensor 6.3.2.4 
[DIRS 147304] Locations 
MO0007SEPDSTPC.001 DST Heater Power and 6.3.1.1 
[DIRS 153707] Temperature 6.3.1.2 
MO0012SEPDSTPC.002 DST Heater Power and 6.3.1.1 
[DIRS 153708] Temperature 6.3.1.2 
MO9807DSTSET01.000 DST Heater Power and 6.3.1.1 
[DIRS 113644] Temperature 6.3.1.2 
MO9810DSTSET02.000 DST Heater Power and 6.3.1.1 
[DIRS 113662] Temperature 6.3.1.2 
MO9906DSTSET03.000 DST Heater Power and 6.3.1.1 
[DIRS 113673] Temperature 6.3.1.2 
MO0107SEPDSTPC.003 DST Heater Power and 6.3.1.1 
[DIRS 158321] Temperature 6.3.1.2 
MO0202SEPDSTTV.001 DST Heater Power and 6.3.1.1 
[DIRS 158320] Temperature 6.3.1.2 
SNF39012298002.012 MPBX and CDEX 6.3.3.1 
[DIRS 153840] Displacement Corrected for 6.3.3.2 
Thermal Expansion 
November 1997  May 1998 
SN0107F3912298.031 MPBX and CDEX 6.3.3.1 
[DIRS 158413] Displacement Corrected for 
Thermal Expansion 
December 2000  May 2001 
6.3.3.2 
SN0203F3912298.035 MPBX and CDEX 6.3.3.1 
[DIRS 158363] Displacement Corrected for 
Thermal Expansion June 
2001  January 2002 
6.3.3.2 
SN0007F3912298.020 MPBX and CDEX 6.3.3.1 
[DIRS 158388] Displacement Corrected for 
Thermal Expansion 
November 1999  May 2000 
6.3.3.2 

Table 6.3-1. DTNs for the Drift Scale Test (Continued) 
Input DTN [DIRS] 
Input DTN 
Description 
Input DTN 
Text Location Summary DTN 
Summary DTN 
Description 
SNF38040197001.001 Strain-gage and Anchor 6.3.3.3 Unchanged DTN Unchanged DTN 
[DIRS 159130] Locations 
SNF39012298002.003 Ground Support System 6.3.3.3 Unchanged DTN Unchanged DTN 
[DIRS 158417] Strain: November 1997  
May 1998 
SNF39012298002.007 Ground Support System 6.3.3.3 Unchanged DTN Unchanged DTN 
[DIRS 158365] Strain: June 1998  August 
1998 
SNF39012298002.011 Ground Support System 6.3.3.3 Unchanged DTN Unchanged DTN 
[DIRS 158368] Strain: September 1998  
May 1999 
SN0001F3912298.015 Ground Support System 6.3.3.3 Unchanged DTN Unchanged DTN 
[DIRS 158372] Strain: June 1999  October 
1999 
SN0007F3912298.019 Ground Support System 6.3.3.3 Unchanged DTN Unchanged DTN 
[DIRS 158387] Strain: November 1999  
May 2000 
SN0101F3912298.025 
[DIRS 158401] 
Ground Support System 
Strain: June 2000  
November 2000 
6.3.3.3 Unchanged DTN Unchanged DTN 
SN0107F3912298.030 Ground Support System 6.3.3.3 Unchanged DTN Unchanged DTN 
[DIRS 158409] Strain: December 2000  
May 2001 
SN0203F3912298.034 Ground Support System 6.3.3.3 Unchanged DTN Unchanged DTN 
[DIRS 158362] Strain: June 2001  January 
14, 2002 
SNF39012298002.005 Ground Support System 6.3.3.3 SN0208F3912298.038b Smoothed Strain Data 
[DIRS 158418] Strain Corrected for Thermal [DIRS 170610] 
Expansion: November 9, 
1997  May 1998 
SNF39012298002.009 Ground Support System 6.3.3.3 
[DIRS 158366] Strain Corrected for Thermal 
Expansion: June 1998  
August 1998 
SNF39012298002.013 
[DIRS 158369] 
Ground Support System 
Strain Corrected for Thermal 
Expansion: September 1998 
 May 1999 
6.3.3.3 
SN0001F3912298.017 
[DIRS 158373] 
Ground Support System 
Strain Corrected for Thermal 
Expansion: June 1999  
October 1999 
6.3.3.3 
SN0007F3912298.021 Ground Support System 6.3.3.3 
[DIRS 158391] Strain Corrected for Thermal 
Expansion: November 1999 
 May 2000 
SN0101F3912298.027 
[DIRS 158407] 
Ground Support System 
Strain Corrected for Thermal 
Expansion: June 2000  
November 2000 
6.3.3.3 

Table 6.3-1. DTNs for the Drift Scale Test (Continued) 
Input DTN [DIRS] 
Input DTN 
Description 
Input DTN 
Text Location Summary DTN 
Summary DTN 
Description 
SN0107F3912298.032 Ground Support System 6.3.3.3 SN0208F3912298.038b Smoothed Strain Data 
[DIRS 158414] Strain Corrected for Thermal [DIRS 170610] (continued) (continued) 
Expansion: December 2000 
 May 2001 
SN0203F3912298.036 Ground Support System 6.3.3.3 
[DIRS 158364] Strain Corrected for Thermal 
Expansion: June 2001  
January 14, 2002 
LB980120123142.007 Acoustic Emissions: Baseline 6.3.3.4 LB0208ACEMDSTH.001 Acoustic Emissions: 
[DIRS 158352] and Heating [DIRS 170575] Baseline and Heating 
LB980420123142.004 Acoustic Emissions: Baseline 6.3.3.4 
[DIRS 113717] and Heating 
LB000121123142.005 Acoustic Emissions: Baseline 6.3.3.4 
[DIRS 158339] and Heating 
LB000718123142.005 Acoustic Emissions: Baseline 6.3.3.4 
[DIRS 158343] and Heating 
LB0101ACEMDST1.001 Acoustic Emissions: Baseline 6.3.3.4 
[DIRS 158344] and Heating 
LB0108ACEMDST5.001 Acoustic Emissions: Baseline 6.3.3.4 
[DIRS 158437] and Heating 
SN0203L2210196.007 Laboratory Thermal 6.3.3.5 Unchanged DTN Unchanged DTN 
[DIRS 158322] Expansion 
SNL02100196001.001 Elastic Constants and 6.3.3.5 Unchanged DTN Unchanged DTN 
[DIRS 158420] Strength Properties 
SNL23030598001.001 Elastic Constants and 6.3.3.5 Unchanged DTN Unchanged DTN 
[DIRS 158370] Strength of Concrete 
SN0011F3912298.022 Rock Mass Displacement 6.3.3.6 Unchanged DTN Unchanged DTN 
[DIRS 158392] Pressure Data Plate Load 
Test October 16-17 2000 
SN0011F3912298.023 Rock Mass Displacement 6.3.3.6 Unchanged DTN Unchanged DTN 
[DIRS 158399] Pressure Data in Modulus 
October 16-17 2000 
MO0207AL5WATER.001 Water Sampling in Alcove 5 6.3.4.1 SN0208F3903102.002 Field Water Sampling 
[DIRS 159300] (Results from 2/4/1997 [DIRS 161246] and Chemistry 
through 4/20/1999). 
MO0101SEPFDDST.000 Field Measured Data of 6.3.4.1 
[DIRS 153711] Water Samples from the Drift 
Scale Test 
SN0203F3903102.001 Drift Scale Test Water 6.3.4.1 
[DIRS 159133] Sampling (with Results from 
4/17/2001 through 
1/14/2002) 
LL001100931031.008 Aqueous Chemistry of Water 6.3.4.1 LL020709923142.023b Water Chemistry 
[DIRS 153288] Sampled from Boreholes of [DIRS 161677] 
the Drift Scale Test (DST) 
LL001200231031.009b 
[DIRS 153616] 
Aqueous Chemistry of Water 
Sampled from Boreholes of 
the Drift Scale Test (DST) 
6.3.4.1 
LL020302223142.015 Aqueous Geochemistry of 6.3.4.1 
[DIRS 159134] DST Samples Collected from 
HYD Boreholes. 

Table 6.3-1. DTNs for the Drift Scale Test (Continued) 
Input DTN [DIRS] 
Input DTN 
Description 
Input DTN 
Text Location Summary DTN 
Summary DTN 
Description 
MO0005PORWATER.000 
[DIRS 150930] 
Perm-Sample Pore Water 
Data 
6.3.4.1 LL020709923142.023b 
[DIRS 161677] (continued) 
Water Chemistry 
(continued) 
LL021107623121.014 Aqueous Geochemistry of 6.3.4.1 
[DIRS 169257] DST Samples Collected 
Between April 20, 1999 and 
January 25, 2000 
LL030107523142.031b Anion Concentrations of Two 6.3.4.1 
[DIRS 169258] DST Samples Collected 
Between June 4, 1998 and 
March 30, 1999 
LL990702804244.100b Borehole and Pore Water 6.3.4.1 
[DIRS 144922] Data 
LB980420123142.005 Isotope Data for CO2 from 6.3.4.2 Unchanged DTN Unchanged DTN 
[DIRS 111471] Gas Samples Collected from 
DST: February 1998 
LB980715123142.003 Isotope Data for CO2 from 6.3.4.2 Unchanged DTN Unchanged DTN 
[DIRS 111472] Gas Samples Collected from 
DST: June 4, 1998 
LB0404ISODSTHP.003 Third Submittal of CO2/H20 6.3.4.2 Unchanged DTN Unchanged DTN 
[DIRS 169254] Isotope Data for the Heating 
Phase of the DST 
LB990630123142.003 Isotope Data for CO2 from 6.3.4.2 Unchanged DTN Unchanged DTN 
[DIRS 111476] Gas and Water Samples: 
September 1998 to May 
1999. 
LB000121123142.003 
[DIRS 146451] 
Isotope Data for CO2 Gas 
Samples Collected from the 
6.3.4.2 Unchanged DTN Unchanged DTN 
Hydrology Boreholes: August 
9, 1999 Through November 
30, 1999 
LB000718123142.003 
[DIRS 158342] 
Isotope Data for CO2 Gas 
Samples Collected from the 
6.3.4.2 Unchanged DTN Unchanged DTN 
Hydrology Boreholes: April 
18, 2000 Through April 19, 
2000. 
LB0011CO2DST08.001 Isotope Data for CO2 from 6.3.4.2 Unchanged DTN Unchanged DTN 
[DIRS 153460 Gas Samples Collected from 
Hydrology Holes 
LB0102CO2DST98.001 
[DIRS 159306] 
Concentration and Isotope 
Data for CO2 and H20 from 
Gas Samples Collected from 
Hydrology Boreholes: May 
and August 1999, April 2000, 
January and April 2001 
6.3.4.2 Unchanged DTN Unchanged DTN 
LB0108CO2DST05.001 
[DIRS 156888] 
Concentration and Isotope 
Data for CO2 and H20 from 
Gas Samples Collected from 
Hydrology Boreholes: May 
and August 1999, April 2000, 
January and April 2001 
6.3.4.2 Unchanged DTN Unchanged DTN 
LB0203CO2DSTEH.001 
[DIRS 158349] 
Concentration/Isotope Data 
for CO2/H20 from Gas 
Samples Collected from 
Hydrology Boreholes up to 
End of Heating 
6.3.4.2 Unchanged DTN Unchanged DTN 

Table 6.3-1. DTNs for the Drift Scale Test (Continued) 
Input DTN [DIRS] 
Input DTN 
Description 
Input DTN 
Text Location Summary DTN 
Summary DTN 
Description 
LB0206C14DSTEH.001 
[DIRS 159303] 
Carbon 14 Isotope Data from 
CO2 Gas Samples Collected 
from DST 
6.3.4.2 Unchanged DTN Unchanged DTN 
LA9912SL831151.002 
[DIRS 146449] 
Percent Coverage By 
Fracture-Coating Minerals in 
Core ESF-HD-TEMP-2 
6.3.4.3 Unchanged DTN Unchanged DTN 
LA0009SL831151.001 
[DIRS 153485] 
Fracture Mineralogy of the 
ESF Single Heater Test 
Block, Alcove 5 
6.3.4.3 Unchanged DTN Unchanged DTN 
LA0303WS831151.001 
[DIRS 169378] 
Amorphous Silica in Drift 
Scale Test Sidewall Samples 
6.3.4.3 Unchanged DTN Unchanged DTN 
LA0201SL831225.001 
[DIRS 158426] 
Chemical, Textural, and 
Mineralogical Characteristics 
of Sidewall Samples from the 
Drift Scale Test. 
6.3.4.3 Unchanged DTN Unchanged DTN 
GS011108312322.008 
[DIRS 159136] 
Uranium Concentrations and 
234u/238u Activity Ratios 
Analyzed Between February 
1, 1999 and August 1, 2001 
for Drift-Scale Heater Test 
Water Collected Between 
June 1998 and April 2001, 
and Pore Water Collected 
Between March 1996 and 
April 1999. 
6.3.4.4 Unchanged DTN Unchanged DTN 
GS010808312322.004 
[DIRS 156007] 
Uranium and Uranium 
Isotope Data for Water 
Samples from Wells and 
Springs in the Yucca 
Mountain Vicinity Collected 
Between December 1996 
and December 1997 
6.3.4.4 Unchanged DTN Unchanged DTN 
GS010608315215.002 
[DIRS 156187] 
Uranium and Thorium 
Isotope Data for Waters 
Analyzed Between January 
18, 1994 and September 14, 
1996. 
6.3.4.4 Unchanged DTN Unchanged DTN 
GS011108312322.009 
[DIRS 159137] 
Strontium Isotope Ratios and 
Strontium Concentrations in 
Water Samples from the Drift 
Scale Test Analyzed from 
March 16, 1999 to June 27, 
2001. 
6.3.4.4 Unchanged DTN Unchanged DTN 
GS960908315215.012 
[DIRS 169552] 
Strontium Isotope Ratios and 
Isotope Dilutions Data for 
Strontium Analyzed 07/06/95 
to 08/05/96. 
6.3.4.4 Unchanged DTN Unchanged DTN 
GS010908315215.005 
[DIRS 169553] 
Strontium Isotope Ratios and 
Strontium Concentrations in 
Calcite Samples from the 
ESF Analyzed from May 25, 
2000 to June 5, 2001. 
6.3.4.4 Unchanged DTN Unchanged DTN 
GS990308315215.004 
[DIRS 145711] 
Strontium Isotope Ratios and 
Strontium Concentrations in 
Rock Core Samples and 
Leachates from USW SD-9 
and USW SD-12. 
6.3.4.4 Unchanged DTN Unchanged DTN 

Table 6.3-1. DTNs for the Drift Scale Test (Continued) 
Input DTN [DIRS] 
Input DTN 
Description 
Input DTN 
Text Location Summary DTN 
Summary DTN 
Description 
GS040508312272.002b 
[DIRS 169629] 
Strontium Isotope Ratios and 
Strontium Concentrations on 
Introduced Materials to the 
ESF Tunnel 
6.3.4.4 Unchanged DTN Unchanged DTN 
GS990308315215.003 
[DIRS 145707] 
X-Ray Fluorescence 
Elemental Compositions of 
Rock Core Samples from 
USW SD-9 and USW SD-1`2 
6.3.4.4 Unchanged DTN Unchanged DTN 
SN0203F3903102.001 
[DIRS 159133] 
Drift Scale Test Water 
Sampling (With Results from 
4/17/2001 Through 
1/14/2002) 
6.3.4.5 SN0208F3903102.003 
[DIRS 170620] 
Field Hydrogen 
Fluoride (HF) Data 
LL020405123142.019 
[DIRS 159307] 
Aqueous Geochemistry of 
Condensed Fluids Collected 
During Studies of Introduced 
Materials. 
6.3.4.5 
GS030408312272.002 
[DIRS 165226] 
Analysis of Water-Quality 
Samples for the Period from 
July 2002 to November 2002 
6.3.4.5 Unchanged DTN Unchanged DTN 
LB0211DSTRBRDG.001 
[DIRS 170566] 
DST Packer Materials 
Investigation 
6.3.4.5 Unchanged DTN Unchanged DTN 
LB0302NEOPDGRD.001 
[DIRS 170567] 
Neoprene Degradation 
Experiments 
6.3.4.5 Unchanged DTN Unchanged DTN 
LB0401PRTDSTCP.001 
[DIRS 170568] 
Passive Monitoring Data 
(Temperature and Pressure 
for the Drift Scale Test 
(01/15/2002 - 06/30/2002) 
6.3.4.5 Unchanged DTN Unchanged DTN 
LB0401PRTDSTCP.002 
[DIRS 170569] 
Passive Monitoring Data 
(Temperature and Pressure 
for the Drift Scale Test 
(07/01/2002  12/31/2002) 
6.3.4.5 Unchanged DTN Unchanged DTN 
LL030305023121.023 
[DIRS 170570] 
Aqueous Geochemistry of 
DST Water Samples 
Collected in February and 
March of 2002 from Borehole 
75, Zone 2 
6.3.4.5 Unchanged DTN Unchanged DTN 
LL030310023121.024 
[DIRS 170571] 
Chemical Composition of 
Water Samples Collected 
from Hyd Boreholes of the 
DST 
6.3.4.5 Unchanged DTN Unchanged DTN 
LL030605512251.064 
[DIRS 170572] 
Thermogravimetric Analysis 
Data on the Thermal 
Decomposition of 
Fluoroelastomer Samples 
taken from BH-60 and BH-72 
of the DST 
6.3.4.5 Unchanged DTN Unchanged DTN 
SN0210F3903102.004 
[DIRS 170573] 
Drift Scale Test Water 
Sampling (Results from 
1/16/2002 through 4/4/2002) 
6.3.4.5 Unchanged DTN Unchanged DTN 
GS020808312272.004 
[DIRS 166569] 
Analysis of Water-Quality 
Samples July 1999 to July 
2002 
6.3.4.5 Unchanged DTN Unchanged DTN 

Table 6.3-1. DTNs for the Drift Scale Test (Continued) 
Input DTN [DIRS] 
Input DTN 
Description 
Input DTN 
Text Location Summary DTN 
Summary DTN 
Description 
SN0211F3903102.005 
[DIRS 170574] 
Drift Scale Test Water 
Sampling (Results from 
4/25/2002 through 
8/28/2002) 
6.3.4.5 Unchanged DTN Unchanged DTN 
GS970608314224.006 
[DIRS 158429] 
Fracture Mapping 6.3.5.1 Unchanged DTN Unchanged DTN 
LARO831422AQ97.002 
[DIRS 158431] 
DST Borehole Video Logging 6.3.5.2 Unchanged DTN Unchanged DTN 
a 
DTNs LA9908FH6001WP.001 [DIRS 158319], LA0111FH831151.002 [DIRS 158317], LA0208FH831151.001 [DIRS 
159515], LA0108FH831151.001 [DIRS 158316], LA0111FH831151.001 [DIRS 169386], LA0111FH831151.003 
[DIRS 158318] and LA0208FH831151.002 [DIRS 159308] provide access via Records Processing Center (RPC) to 
all thermal and mechanical data collected in DST Data Collection System (original/electrical and 
converted/engineering units). These unqualified DTNs also provides access (RPC) to pertinent supporting material 
such as scientific notebooks and calibration relationships.
b 
These data are unqualified and should only be used for corroborative purposes. 

Table 6.3-2. DST Borehole Information 
Collar Coordinates Bottom Coordinates 
Borehole (meters) (meters) 
Number Borehole Identification Primary Purpose x/y/z x/y/z Diameter (cm) 
42 ESF-SDM-MPBX-1 MPBX -Rock Mass Displacement -29.304/13.820/4.631 -3.555/13.688/-0.371 7.70 
43 ESF-SDM-MPBX-2 MPBX -Rock Mass Displacement -29.166/21.062/5.073 -3.424/20.743/0.356 7.70 
44 ESF-SDM-MPBX-3 MPBX -Rock Mass Displacement -29.539/32.079/5.137 -3.600/32.192/-0.372 7.70 
45 ESF-HD-ERT-1 Electrical Resistivity Tomography -28.875/4.577/4.118 9.565/4.674/13.693 7.70 
46 ESF-HD-ERT-2 Electrical Resistivity Tomography -27.408/4.572/1.533 9.093/4.533/-14.333 7.70 
47 ESF-HD-NEU-1 Neutron Probe -29.114/6.385/4.636 7.166/6.338/21.099 7.70 
48 ESF-HD-NEU-2 Neutron Probe -29.051/6.391/4.042 9.515/6.260/13.545 7.70 
49 ESF-HD-NEU-3 Neutron Probe -29.039/6.377/3.435 10.841/6.703/7.714 7.70 
50 ESF-HD-NEU-4 Neutron Probe -29.012/6.395/2.558 9.680/6.419/-8.126 7.70 
51 ESF-HD-NEU-5 Neutron Probe -28.993/6.414/2.254 8.072/6.687/-11.996 7.70 
52 ESF-HD-CHE-1 Chemistry - SEAMIST -29.211/8.247/4.540 7.045/8.293/20.070 10.00 
53 ESF=HD-CHE-2 Chemistry - SEAMIST -29.232/8.258/4.014 9.415/8.702/13.889 10.00 
54 ESF-HD-CHE-3 Chemistry - SEAMIST -29.139/8.227/3.434 10.332/8.375/6.906 10.00 
55 ESF-HD-CHE-4 Chemistry - SEAMIST -29.233/8.224/2.583 5.087/7.976/-7.547 10.00 
56 ESF-HD-CHE-5 Chemistry - SEAMIST -29.223/8.248/2.322 7.264/8.456/-13.833 10.00 
57 ESF-HD-HYD-1 Hydrology -28.841/10.054/4.748 7.773/9.825/19.805 7.70 
58 ESF-HD-HYD-2 Hydrology -28.951/10.017/4.114 9.567/9.961/13.730 7.70 
59 ESF-HD-HYD-3 Hydrology -29.071/10.044/3.453 10.248/10.045/7.227 7.70 
60 ESF-HD-HYD-4 Hydrology -29.107/10.003/2.707 9.213/9.259/-7.328 7.70 
61 ESF-HD-HYD-5 Hydrology -29.193/10.062/2.337 8.215/10.184/-12.022 7.70 
62 ESF-HD-ERT-3 Electrical Resistivity Tomography -29.238/24.703/6.307 10.095/24.853/13.169 7.70 
63 ESF-HD-ERT-4 Electrical Resistivity Tomography -29.284/24.690/4.730 7.004/25.015/-11.927 7.70 
64 ESF-HD-NEU-6 Neutron Probe -29.311/26.519/6.639 8.073/26.437/20.795 7.70 
65 ESF-HD-NEU-7 Neutron Probe -29.341/26.524/6.310 9.937/26.650/13.715 7.70 
66 ESF-HD-NEU-8 Neutron Probe -29.118/26.506/5.999 10.682/26.580/6.890 7.70 
67 ESF-HD-NEU-9 Neutron Probe -28.974/26.489/5.222 8.262/25.877/-7.953 7.70 
68 ESF-HD-NEU-10 Neutron Probe -29.116/26.550/4.588 6.847/26.856/-12.272 7.70 
69 ESF-HD-CHE-6 Chemistry - SEAMIST -29.199/28.368/6.842 8.312/28.683/20.044 7.70 
TDR-MGR-HS-000002 REV 00 T6.3-14 September 2004 

TDR-MGR-HS-000002 REV 00 T6.3-15 September 2004 
Table 6.3-2. DST Borehole Information (Continued) 
Collar Coordinates Bottom Coordinates 
Borehole (meters) (meters) 
Number Borehole Identification Primary Purpose x/y/z x/y/z Diameter (cm) 
70 ESF-HD-CHE-7 Chemistry - SEAMIST -29.261/28.373/6.315 10.024/29.034/13.092 7.70 
71 ESF-HD-CHE-8 Chemistry - SEAMIST -29.393/28.345/5.964 10.664/27.898/6.244 10.00 
72 ESF-HD-CHE-9 Chemistry - SEAMIST -29.289/28.385/5.467 8.353/28.822/-8.384 10.00 
73 ESF-HD-CHE-10 Chemistry - SEAMIST -29.062/28.375/4.546 6.628/28.542/-12.589 7.70 
74 ESF-HD-HYD-6 Hydrology -29.380/30.194/6.811 8.168/30.068/20.601 7.70 
75 ESF-HD-HYD-7 Hydrology -29.306/30.215/6.303 10.024/30.485/12.913 7.70 
76 ESF-HD-HYD-8 Hydrology -29.295/30.177/6.002 10.731/30.178/6.737 7.70 
77 ESF-HD-HYD-9 Hydrology -29.331/30.210/5.672 8.268/29.906/-8.208 7.70 
78 ESF-HD-HYD-10 Hydrology -29.376/30.191/4.702 6.467/30.359/-12.931 7.70 
79 ESF-HD-TEMP-1 Temperature 9.460/-11.022/3.752 9.459/48.478/2.706 10.00 
80 ESF-HD-TEMP-2 Temperature -9.486/-11.059/3.228 -9.903/48.570/3.162 10.00 
81 ESF-HD-MPBX-1 MPBX -Rock Mass Displacement 6.994/-11.130/3.463 6.781/34.945/3.326 7.70 
82 ESF-HD-MPBX-2 MPBX -Rock Mass Displacement -7.028/-10.958/3.451 -7.675/35.252/3.128 7.70 
83 ESF-HD-WH-1 Wing Heater -2.483/1.837/-0.259 -14.005/1.848/-0.325 10.00 
84 ESF-HD-WH-2 Wing Heater -2.488/3.645/-0.239 -14.030/3.676/-0.182 10.00 
85 ESF-HD-WH-3 Wing Heater -2.470/5.498/-0.248 -14.050/5.529/-0.255 10.00 
86 ESF-HD-WH-4 Wing Heater -2.491/7.310/-0.251 -13.908/7.190/-0.353 10.00 
87 ESF-HD-WH-5 Wing Heater -2.605/9.154/-0.251 -13.963/9.334/-0.233 10.00 
88 ESF-HD-WH-6 Wing Heater -2.567/10.984/-0.242 -14.007/10.946/-0.249 10.00 
89 ESF-HD-WH-7 Wing Heater -2.778/12.816/-0.239 -14.001/12.881/-0.270 10.00 
90 ESF-HD-WH-8 Wing Heater -2.517/14.602/-0.269 -14.088/14.507/-0.381 10.00 
91 ESF-HD-WH-9 Wing Heater -2.512/16.482/-0.234 -13.791/16.640/-0.188 10.00 
92 ESF-HD-WH-10 Wing Heater -2.537/18.280/-0.260 -14.051/18.171/-0.342 10.00 
93 ESF-HD-WH-11 Wing Heater -2.447/20.108/-0.274 -13.970/20.104/-0.475 10.00 
94 ESF-HD-WH-12 Wing Heater -2.475/21.958/-0.246 -13.928/22.088/-0.237 10.00 
95 ESF-HD-WH-13 Wing Heater -2.575/23.777/-0.253 -14.065/23.777/-0.293 10.00 
96 ESF-HD-WH-14 Wing Heater -2.603/25.617/-0.278 -14.092/25.653/-0.550 10.00 

TDR-MGR-HS-000002 REV 00 T6.3-16 September 2004 
Table 6.3-2. DST Borehole Information (Continued) 
Collar Coordinates Bottom Coordinates 
Borehole (meters) (meters) 
Number Borehole Identification Primary Purpose x/y/z x/y/z Diameter (cm) 
97 ESF-HD-WH-15 Wing Heater -2.541/27.451/-0.234 -14.051/27.619/-0.350 10.00 
98 ESF-HD-WH-16 Wing Heater -2.445/29.241/-0.238 -13.642/29.156/-0.254 10.00 
99 ESF-HD-WH-17 Wing Heater -2.584/31.126/-0.260 -14.038/31.267/-0.263 10.00 
100 ESF-HD-WH-18 Wing Heater -2.466/32.933/-0.247 -13.995/33.022/-0.311 10.00 
101 ESF-HD-WH-19 Wing Heater -2.715/34.732/-0.262 -14.062/34.660/-0.281 10.00 
102 ESF-HD-WH-20 Wing Heater -2.595/36.571/-0.283 -14.000/36.407/-0.621 10.00 
103 ESF-HD-WH-21 Wing Heater -2.597/38.409/-0.246 -14.167/38.457/-0.160 10.00 
104 ESF-HD-WH-22 Wing Heater -2.613/40.230/-0.250 -14.133/40.306/-0.099 10.00 
105 ESF-HD-WH-23 Wing Heater -2.588/42.092/-0.272 -14.109/42.233/-0.246 10.00 
106 ESF-HD-WH-24 Wing Heater -2.590/43.875/-0.239 -14.109/43.911/-0.155 10.00 
107 ESF-HD-WH-25 Wing Heater -2.567/45.734/-0.260 -14.150/45.795/-0.384 10.00 
108 ESF-HD-WH-26 Wing Heater 2.593/45.737/-0.278 14.083/45.805/-0.489 10.00 
109 ESF-HD-WH-27 Wing Heater 2.581/43.876/-0.251 14.099/43.790/-0.302 10.00 
110 ESF-HD-WH-28 Wing Heater 2.582/42.065/-0.258 14.106/42.121/-0.216 10.00 
111 ESF-HD-WH-29 Wing Heater 2.586/40.216/-0.236 14.099/40.278/-0.133 10.00 
112 ESF-HD-WH-30 Wing Heater 2.561/38.385/-0.262 14.178/38.316/-0.269 10.00 
113 ESF-HD-WH-31 Wing Heater 2.576/36.561/-0.245 14.141/36.476/-0.212 10.00 
114 ESF-HD-WH-32 Wing Heater 2.850/34.787/-0.273 14.325/34.970/-0.276 10.00 
115 ESF-HD-WH-33 Wing Heater 2.593/32.913/-0.232 14.115/32.667/-0.194 10.00 
116 ESF-HD-WH-34 Wing Heater 2.668/31.081/-0.254 13.903/31.031/-0.229 10.00 
117 ESF-HD-WH-35 Wing Heater 2.646/29.228/-0.241 13.813/29.165/-0.129 10.00 
118 ESF-HD-WH-36 Wing Heater 2.609/27.420/-0.207 14.168/27.390/-0.048 10.00 
119 ESF-HD-WH-37 Wing Heater 2.498/25.603/-0.256 14.100/25.657/-0.406 10.00 
120 ESF-HD-WH-38 Wing Heater 2.509/23.775/-0.267 13.979/23.831/-0.377 10.00 
121 ESF-HD-WH-39 Wing Heater 2.451/21.940/-0.272 14.077/21.945/-0.299 10.00 
122 ESF-HD-WH-40 Wing Heater 2.482/20.114/-0.249 14.082/20.122/-0.232 10.00 
123 ESF-HD-WH-41 Wing Heater 2.490/18.287/-0.248 14.050/18.275/-0.297 10.00 
124 ESF-HD-WH-42 Wing Heater 2.529/16.434/-0.273 14.025/16.280/-0.514 10.00 

TDR-MGR-HS-000002 REV 00 T6.3-17 September 2004 
Table 6.3-2. DST Borehole Information (Continued) 
Collar Coordinates Bottom Coordinates 
Borehole (meters) (meters) 
Number Borehole Identification Primary Purpose x/y/z x/y/z Diameter (cm) 
125 ESF-HD-WH-43 Wing Heater 2.509/14.643/-0.288 13.977/14.678/-0.523 10.00 
126 ESF-HD-WH-44 Wing Heater 2.511/12.801/-0.245 14.145/12.865/-0.342 10.00 
127 ESF-HD-WH-45 Wing Heater 2.578/10.949/-0.272 14.056/10.705/-0.441 10.00 
128 ESF-HD-WH-46 Wing Heater 2.515/9.141/-0.260 14.012/9.212/-0.419 10.00 
129 ESF-HD-WH-47 Wing Heater 2.612/7.313/-0.245 14.069/7.108/-0.272 10.00 
130 ESF-HD-WH-48 Wing Heater 2.561/5.504/-0.230 14.011/5.350/-0.177 10.00 
131 ESF-HD-WH-49 Wing Heater 2.567/3.672/-0.277 14.078/3.705/-0.326 10.00 
132 ESF-HD-WH-50 Wing Heater 2.648/1.816/-0.264 14.000/1.583/-0.444 10.00 
133 ESF-HD-TEMP-3 Temperature 0.749/2.736/2.397 0.878/2.834/22.465 7.70 
134 ESF-HD-TEMP-4 Temperature 0.736/2.734/-1.603 0.635/2.787/-22.938 7.70 
135 ESF-HD-ERT-5 Electrical Resistivity Tomography -0.763/2.709/2.397 -0.957/2.756/22.399 7.70 
136 ESF-HD-ERT-6 Electrical Resistivity Tomography -0.758/2.740/-1.615 -0.707/2.625/-17.953 7.70 
137 ESF-HD-TEMP-5 Temperature 0.775/11.918/2.510 0.880/11.840/22.463 7.70 
138 ESF-HD-TEMP-6 Temperature -1.983/11.880/1.958 -15.960/11.516/15.926 7.70 
139 ESF-HD-TEMP-7 Temperature -2.569/11.891/-0.017 -22.536/11.953/0.149 7.70 
140 ESF-HD-TEMP-8 Temperature -1.911/11.907/-1.599 -17.366/11.791/-14.661 7.70 
141 ESF-HD-TEMP-9 Temperature 0.764/11.893/-1.637 0.570/12.034/-22.973 7.70 
142 ESF-HD-TEMP-10 Temperature 1.617/11.912/-1.639 16.017/11.903/-15.924 7.70 
143 ESF-HD-TEMP-11 Temperature 2.665/11.890/-0.008 22.513/11.918/0.022 7.70 
144 ESF-HD-TEMP-12 Temperature 2.009/11.915/1.982 16.394/12.063/16.351 7.70 
145 ESF-HD-ERT-7 Electrical Resistivity Tomography -0.757/11.892/2.579 -0.899/12.019/22.667 7.70 
146 ESF-HD-ERT-8 Electrical Resistivity Tomography -0.757/11.894/-1.613 -1.065/11.929/-18.014 7.70 
147 ESF-HD-MPBX-3 MPBX -Rock Mass Displacement 1.284/13.706/2.213 8.682/13.653/15.233 7.70 
148 ESF-HD-MPBX-4 MPBX -Rock Mass Displacement -1.390/13.725/2.387 -8.864/13.700/15.172 7.70 
149 ESF-HD-MPBX-5 MPBX -Rock Mass Displacement -0.028/13.697/2.484 -0.097/13.608/17.594 7.70 
150 ESF-HD-MPBX-6 MPBX -Rock Mass Displacement 0.006/13.693/-1.639 0.145/13.807/-18.008 7.70 
151 ESF-HD-REKA-1 Thermal Conductivity and -0.027/17.352/2.669 -0.049/17.348/12.705 4.80 
152 ESF-HD-REKA-2 Thermal Conductivity and -2.437/17.359/0.017 -12.528/17.234/0.078 4.80 

TDR-MGR-HS-000002 REV 00 T6.3-18 September 2004 
Table 6.3-2. DST Borehole Information (Continued) 
Collar Coordinates Bottom Coordinates 
Borehole (meters) (meters) 
Number Borehole Identification Primary Purpose x/y/z x/y/z Diameter (cm) 
153 ESF-HD-REKA-3 Thermal Conductivity and -1.603/17.359/-1.603 -9.199/17.241/-9.312 4.80 
154 ESF-HD-MPBX-7 MPBX -Rock Mass Displacement 1.285/21.020/2.186 8.867/21.011/15.099 7.70 
155 ESF-HD-MPBX-8 MPBX - Rock Mass Displacement -1.317/21.006/2.270 -9.016/20.919/15.268 7.70 
156 ESF-HD-MPBX-9 MPBX -Rock Mass Displacement -0.013/21.001/2.504 0.028/20.944/17.482 7.70 
157 ESF-HD-MPBX-10 MPBX -Rock Mass Displacement -0.004/21.037/-1.624 0.031/21.014/-17.820 7.70 
158 ESF-HD-TEMP-13 Temperature 0.757/22.847/2.565 0.412/23.021/22.599 7.70 
159 ESF-HD-TEMP-14 Temperature -1.949/22.876/1.931 -16.007/22.892/16.157 7.70 
160 ESF-HD-TEMP-15 Temperature -2.502/22.871/-0.004 -22.615/22.956/0.107 7.70 
161 ESF-HD-TEMP-16 Temperature -1.607/22.883/-1.605 -16.040/23.241/-15.875 7.70 
162 ESF-HD-TEMP-17 Temperature 0.769/22.850/-1.623 0.828/23.004/-22.820 7.70 
163 ESF-HD-TEMP-18 Temperature 1.515/22.828/-1.597 15.772/22.510/-15.913 7.70 
164 ESF-HD-TEMP-19 Temperature 2.489/22.869/0.016 22.586/23.017/0.299 7.70 
165 ESF-HD-TEMP-20 Temperature 1.862/22.845/1.882 16.004/22.754/16.020 7.70 
166 ESF-HD-ERT-9 Electrical Resistivity Tomography -0.735/22.845/2.566 -0.558/23.020/22.390 7.70 
167 ESF-HD-ERT-10 Electrical Resistivity Tomography -0.772/22.810/-1.637 -0.458/22.747/-17.522 7.70 
168 ESF-HD-TEMP-21 Temperature -0.071/31.952/2.451 -0.335/31.978/22.650 7.70 
169 ESF-HD-TEMP-22 Temperature -0.003/32.007/-1.629 0.259/32.435/-22.894 7.70 
170 ESF-HD-TEMP-23 Temperature 0.751/39.306/2.488 0.746/39.115/22.604 7.70 
171 ESF-HD-TEMP-24 Temperature -1.853/39.313/1.817 -15.619/39.292/15.716 7.70 
172 ESF-HD-TEMP-25 Temperature -1.581/39.291/-1.571 -16.011/38.870/-16.010 7.70 
173 ESF-HD-TEMP-26 Temperature 0.758/39.324/-1.623 0.715/39.104/-22.887 7.70 
174 ESF-HD-TEMP-27 Temperature 1.584/39.306/-1.586 16.413/38.942/-15.444 7.70 
175 ESF-HD-TEMP-28 Temperature 1.880/39.320/1.843 15.914/39.177/16.275 7.70 
176 ESF-HD-ERT-11 Electrical Resistivity Tomography -0.750/39.296/2.463 -0.779/39.120/22.462 7.70 
177 ESF-HD-ERT-12 Electrical Resistivity Tomography -0.739/39.327/-1.623 -0.749/39.263/-17.823 7.70 
178 ESF-HD-MPBX-11 MPBX -Rock Mass Displacement 1.297/41.138/2.249 8.693/41.103/15.341 7.70 
179 ESF-HD-MPBX-12 MPBX - Rock Mass Displacement -1.319/41.143/2.279 -8.785/41.067/15.433 7.70 
180 ESF-HD-MPBX-13 MPBX -Rock Mass Displacement 0.010/41.134/2.597 0.121/41.079/17.687 7.70 

TDR-MGR-HS-000002 REV 00 T6.3-19 September 2004 
Table 6.3-2. DST Borehole Information (Continued) 
Collar Coordinates Bottom Coordinates 
Borehole (meters) (meters) 
Number Borehole Identification Primary Purpose x/y/z x/y/z Diameter (cm) 
181 ESF-HD-MPBX-14 MPBX -Rock Mass Displacement 0.035/41.194/-1.658 0.083/41.211/-18.122 7.70 
182 ESF-HD-PERM-1 Ambient Characterization 11.616/-15.677/2.284 11.954/-34.533/-4.367 7.70 
183 ESF-HD-PERM-2 Ambient Characterization 10.716/-15.649/3.045 10.861/-35.731/3.003 7.70 
184 ESF-HD-PERM-3 Ambient Characterization 8.853/-15.678/2.298 8.856/-34.504/-4.376 7.70 
185 ESF-HD-HYD-11 Hydrology -29.488/44.728/7.563 10.084/44.145/13.613 7.70 
186 ESF-HD-HYD-12 Hydrology -29.609/44.774/6.470 5.008/44.352/-13.807 7.70 
187 ESF-PL-MPBX-1 MPBX -Rock Mass Displacement 5.499/-5.137/-0.286 5.464/-8.529/-0.358 7.70 
188 ESF-PL-MPBX-2 MPBX -Rock Mass Displacement 5.502/-2.759/-0.262 5.458/0.471/-0.270 7.70 
ESF-HD-CAN1a Floor Heater -0.144/0.565/-0.218 -0.144/5.213/-0.218 NA 
ESF-HD-CAN2a Floor Heater -0.156/5.848/-0.237 -0.156/10.496/-0.237 NA 
ESF-HD-CAN3a Floor Heater -0.139/11.013/-0.236 -0.139/15.661/-0.236 NA 
ESF-HD-CAN4a Floor Heater -0.177/16.305/-0.250 -0.177/20.953/-0.250 NA 
ESF-HD-CAN5a Floor Heater -0.165/21.544/-0.251 -0.165/26.192/-0.251 NA 
ESF-HD-CAN6a Floor Heater -0.176/26.892/-0.246 -0.176/31.540/-0.246 NA 
ESF-HD-CAN7a Floor Heater -0.167/32.077/-0.237 -0.167/36.725/-0.237 NA 
ESF-HD-CAN8a Floor Heater -0.148/37.375/-0.225 -0.148/42.023/-0.225 NA 
ESF-HD-CAN9a Floor Heater -0.163/42.664/-0.235 -0.163/47.312/-0.235 NA 
ESF-HD-83-WH1 Wing Heater -4.263/1.839/-0.269 -14.093/1.848/-0.326 NA 
ESF-HD-84-WH2 Wing Heater -4.208/3.650/-0.231 -14.038/3.676/-0.182 NA 
ESF-HD-85-WH3 Wing Heater -4.250/5.503/-0.249 -14.080/5.529/-0.255 NA 
ESF-HD-86-WH4 Wing Heater -4.081/7.293/-0.265 -13.910/7.190/-0.353 NA 
ESF-HD-87-WH5 Wing Heater -4.175/9.179/-0.249 -14.004/9.335/-0.233 NA 
ESF-HD-88-WH6 Wing Heater -4.137/10.979/-0.243 -13.967/10.946/-0.249 NA 
ESF-HD-89-WH7 Wing Heater -4.348/12.825/-0.243 -14.178/12.882/-0.270 NA 
ESF-HD-90-WH8 Wing Heater -4.267/14.588/-0.286 -14.096/14.507/-0.381 NA 
ESF-HD-91-WH9 Wing Heater -4.292/16.507/-0.227 -14.121/16.645/-0.187 NA 
ESF-HD-92-WH10 Wing Heater -4.237/18.264/-0.272 -14.066/18.171/-0.342 NA 
ESF-HD-93-WH11 Wing Heater -4.127/20.107/-0.303 -13.955/20.104/-0.475 NA 

TDR-MGR-HS-000002 REV 00 T6.3-20 September 2004 
Table 6.3-2. DST Borehole Information (Continued) 
Collar Coordinates Bottom Coordinates 
Borehole (meters) (meters) 
Number Borehole Identification Primary Purpose x/y/z x/y/z Diameter (cm) 
ESF-HD-94-WH12 Wing Heater -4.035/21.976/-0.245 -13.864/22.087/-0.237 NA 
ESF-HD-95-WH13 Wing Heater -4.255/23.777/-0.259 -14.085/23.777/-0.293 NA 
ESF-HD-96-WH14 Wing Heater -4.233/25.622/-0.317 -14.060/25.653/-0.549 NA 
ESF-HD-97-WH15 Wing Heater -3.691/27.468/-0.246 -13.519/27.611/-0.345 NA 
ESF-HD-98-WH16 Wing Heater -4.115/29.228/-0.240 -13.945/29.154/-0.254 NA 
ESF-HD-99-WH17 Wing Heater -4.184/31.146/-0.260 -14.013/31.267/-0.263 NA 
ESF-HD-100-WH18 Wing Heater -4.186/32.946/-0.257 -14.015/33.022/-0.311 NA 
ESF-HD-101-WH19 Wing Heater -4.215/34.722/-0.265 -14.045/34.660/-0.281 NA 
ESF-HD-102-WH20 Wing Heater -4.204/36.548/-0.331 -14.029/36.407/-0.622 NA 
ESF-HD-103-WH21 Wing Heater -4.267/38.416/-0.234 -14.097/38.457/-0.161 NA 
ESF-HD-104-WH22 Wing Heater -4.313/40.241/-0.228 -14.142/40.306/-0.099 NA 
ESF-HD-105-WH23 Wing Heater -4.018/42.109/-0.269 -13.847/42.230/-0.247 NA 
ESF-HD-106-WH24 Wing Heater -4.260/43.880/-0.227 -14.090/43.911/-0.155 NA 
ESF-HD-107-WH25 Wing Heater -4.267/45.743/-0.278 -14.096/45.795/-0.383 NA 
ESF-HD-108-WH26 Wing Heater 4.263/45.747/-0.309 14.091/45.805/-0.489 NA 
ESF-HD-109-WH27 Wing Heater 4.211/43.864/-0.258 14.041/43.790/-0.302 NA 
ESF-HD-110-WH28 Wing Heater 4.202/42.073/-0.252 14.032/42.121/-0.216 NA 
ESF-HD-111-WH29 Wing Heater 4.226/40.225/-0.221 14.055/40.278/-0.133 NA 
ESF-HD-112-WH30 Wing Heater 4.311/38.375/-0.263 14.141/38.316/-0.269 NA 
ESF-HD-113-WH31 Wing Heater 4.296/36.548/-0.240 14.126/36.476/-0.212 NA 
ESF-HD-114-WH32 Wing Heater 4.450/34.813/-0.273 14.279/34.969/-0.276 NA 
ESF-HD-115-WH33 Wing Heater 4.233/32.878/-0.227 14.060/32.668/-0.194 NA 
ESF-HD-116-WH34 Wing Heater 4.018/31.075/-0.251 13.848/31.031/-0.229 NA 
ESF-HD-117-WH35 Wing Heater 3.946/29.221/-0.228 13.775/29.165/-0.129 NA 
ESF-HD-118-WH36 Wing Heater 4.219/27.416/-0.185 14.048/27.390/-0.050 NA 
ESF-HD-119-WH37 Wing Heater 4.268/25.611/-0.279 14.097/25.657/-0.406 NA 
ESF-HD-120-WH38 Wing Heater 4.009/23.782/-0.281 13.838/23.830/-0.376 NA 
ESF-HD-121-WH39 Wing Heater 4.251/21.941/-0.276 14.081/21.945/-0.299 NA 

TDR-MGR-HS-000002 REV 00 T6.3-21 September 2004 
Table 6.3-2. DST Borehole Information (Continued) 
Collar Coordinates Bottom Coordinates 
Borehole (meters) (meters) 
Number Borehole Identification Primary Purpose x/y/z x/y/z Diameter (cm) 
ESF-HD-122-WH40 Wing Heater 3.162/20.114/-0.248 12.992/20.121/-0.234 NA 
ESF-HD-123-WH41 Wing Heater 4.130/18.285/-0.255 13.960/18.275/-0.297 NA 
ESF-HD-124-WH42 Wing Heater 4.328/16.410/-0.311 14.155/16.278/-0.517 NA 
ESF-HD-125-WH43 Wing Heater 4.299/14.648/-0.325 14.127/14.678/-0.526 NA 
ESF-HD-126-WH44 Wing Heater 4.131/12.810/-0.259 13.960/12.864/-0.340 NA 
ESF-HD-127-WH45 Wing Heater 4.287/10.913/-0.297 14.114/10.704/-0.442 NA 
ESF-HD-128-WH46 Wing Heater 4.115/9.151/-0.282 13.944/9.212/-0.418 NA 
ESF-HD-129-WH47 Wing Heater 3.922/7.290/-0.248 13.750/7.114/-0.271 NA 
ESF-HD-130-WH48 Wing Heater 4.161/5.482/-0.223 13.990/5.350/-0.177 NA 
ESF-HD-131-WH49 Wing Heater 3.067/3.673/-0.279 12.897/3.702/-0.321 NA 
ESF-HD-132-WH50 Wing Heater 4.287/1.782/-0.290 14.114/1.581/-0.446 NA 
ESF-HD-CDEX-MPBX-1 Cross Extensometer 0.427/42.357/2.510 0.409/42.357/-1.250 NA 
ESF-HD-CDEX-MPBX-2 Cross Extensometer 2.547/42.268/-0.019 -2.547/42.277/0.011 NA 
DTN: MO0002ABBLSLDS.000 [DIRS 147304]. 
a 
Canister heater coordinates are for the approximate longitudinal centerline of the two ends. 
NOTE: Borehole coordinates are referenced to 0,0,0 coordinate located at the center of the bulkhead in the heated drift 

Table 6.3.1.3-1. Summary of Thermal Conductivity Data for Saturated Specimens from the DST Block 
Thermal Conductivity (W/m-K) 
Distance 
from collar (ft) 
Max. 
Temp. (C) 30C 50C 70C Mean STD N 
ESF-SDM-MPBX1-C 
1.0 70 2.2 2.2 2.2 2.2 0.0 3 
32.1 70 2.2 2.2 2.1 2.2 0.0 3 
40.6 70 2.1 2.1 2.1 2.1 0.0 3 
62.0 70 2.2 2.2 2.2 2.2 0.0 3 
80.5 70 2.15 2.1 2.1 2.1 0.0 3 
N = 5 5 5 
Mean =2.2 2.2 2.1 
STD = 0.1 0.0 0.0 
ESF-SDM-MPBX2-C 
13.0 70 2.1 2.1 2.1 2.1 0.0 3 
29.0 70 2.1 2.1 2.1 2.1 0.0 3 
48.4 70 2.0 2.0 2.0 2.0 0.0 3 
71.5 70 2.3 2.3 2.3 2.3 0.0 3 
84.6 70 2.0 2.0 2.1 2.0 0.1 3 
N = 5 5 5 
Mean =2.1 2.1 2.1 
STD = 0.1 0.1 0.1 
ESF-SDM-MPBX3-C 
3.0 70 1.9 1.9 1.9 1.9 0.0 3 
17.7 70 2.1 2.1 2.1 2.1 0.0 3 
38.7 70 2.2 2.2 2.2 2.2 0.0 3 
72.0 70 2.2 2.2 2.2 2.2 0.0 3 
85.3 70 2.1 2.1 2.1 2.1 0.0 3 
N = 5 5 5 
Mean =2.1 2.1 2.1 
STD = 0.1 0.1 0.1 
ESF-AOD-HDFR1-C 
8.6 70 2.0 2.0 2.0 2.0 0.0 3 
32.2 70 2.1 2.1 2.1 2.1 0.0 3 
48.7 70 1.9 1.9 2.0 1.9 0.0 3 
68.8 70 2.1 2.1 2.0 2.1 0.0 3 
97.5 70 2.3 2.3 2.3 2.3 0.0 3 
N = 5 5 5 
Mean =2.1 2.1 2.1 
STD = 0.2 0.1 0.1 
All Drift Scale Test Characterization Boreholes 
N = 20 20 20 
Mean =2.1 2.1 2.1 
STD = 0.1 0.1 0.1 

Table 6.3.1.3-1. Summary of Thermal Conductivity Data for Saturated Specimens from the DST Block 
(Continued) 
Thermal Conductivity (W/m-K) 
Distance 
from collar (ft) 
Max. 
Temp. (C) 30C 50C 70C Mean STD N 
All Specimens, All Temperatures 
N = 
Mean = 
STD = 
60 
2.1 
0.1 
DTN: SN0203L2210196.007 [DIRS 158322]. 
NOTES: Air dried. Lithostratigraphic unit: Tptpmn, except for HDFR1-97.5-C, which may be from Tptpll (see 
Section 6.3.1.3.1). 
N = Number of samples; STD = Standard deviation. 
Table 6.3.1.3-2. Thermal Conductivity as a Function of Saturation State 
Lithostratigraphic 
Unit 
Number 
of 
Specimens 
Linear Fit: K=Kd+SlopeSl Fit to K=Kd+(Kw-Kd) Sl 
Intercept 
or Kd 
W/(m-K) Slope 
Kw 
W/(m-K) 
Sum of 
Squared 
Errors 
Kd 
W/(m-K) 
Kw 
W/(m-K) 
Sum of 
Squared 
Errors 
Tptpmn 6 1.79 0.414 2.20 0.46 1.71 2.14 0.53 
Tac4 1 0.52 0.54 1.06 0.007 0.42 0.98 0.011 
Tac3 1 0.53 0.55 1.08 0.004 0.43 1.00 0.013 
Tac2 2 0.52 0.59 1.11 0.020 0.39 1.03 0.056 
Tacbs 2 0.71 0.59 1.31 0.007 0.59 1.21 0.062 
DTN: SN0203L2210196.007 [DIRS 158322]. 
NOTE: Refer to SNL 1998 [DIRS 118788] and DTN cited in Table 4-3. Kw = Thermal Conductivity for Saturated 
Specimen; Kd = Thermal Conductivity for Oven-Dried Specimen; Sl = Liquid Saturation 
Table 6.3.1.4-1. REKA Results with No Background Temperature Correction 
REKA Location Thermal Conductivity, K (W/(m-C)) Thermal Diffusivity, Alpha (m2/s) 
1 1.69 0.76  10-6 
2 1.95 0.77  10-6 
3 1.86 0.91  10-6 
4 1.88 0.82  10-6 
5 1.70 0.85  10-6 
Source: CRWMS M&O 1997 [DIRS 101539], Section 10.2. 
NOTE: Values in this table derived from in situ measurements are used for corroborative purposes with 
laboratory measurements discussed in Section 6.3.1.3. 

Table 6.3.1.4-2. REKA Results with Background Temperature Correction 
REKA Location Thermal Conductivity, K (W/(m-C)) 
Thermal Diffusivity, Alpha 
(m2/s) 
1 1.72 0.93  10-6 
2 1.92 0.90  10-6 
3 1.89 1.04  10-6 
4 1.93 1.09  10-6 
5 1.76 0.97  10-6 
Source: CRWMS M&O 1997 [DIRS 101539], Section 10.2. 
NOTE: Values in this table derived from in situ measurements are used for corroborative purposes 
with laboratory measurements discussed in Section 6.3.1.3. 
Table 6.3.2.4-1. Estimated Local Permeability for 41 Packed-off Zones in 14 Boreholes During DST 
Preheating (Nov/Dec 1996 and Feb/Mar 1997) 
Borehole ID k(m2) in zone 1 k(m2) in zone 2 k(m2) in zone 3 
45 ESF-HD-ERT- 1 5.8E-14 2.4E-14 4.5E-13 
46 ESF-HD-ERT-2 4.1E-15 6.2E-15 9.0E-14 
47 ESF-HD-NEU-1 6.1E-14 4.4E-13 4.7E-13 
48 ESF-HD-NEU-2 2.4E-14 3.5E-14 3.4E-13 
51 ESF-HD-NEU-5 8.8E-16 4.4E-13 4.1E-14 
52 ESF-HD-CHE-1 1.0E-13 1.2E-13 2.0E-12 
53 ESF-HD-CHE-2 1.1E-13 1.3E-12 N/A 
56 ESF-HD-CHE-5 1.9E-15 3.4E-14 4.8E-13 
57 ESF-HD-HYD-1 2.7E-13 6.1E-14 1.4E-13 
69 ESF-HD-CHE-6 2.lE-13 9.5E-15 4.9E-13 
70 ESF-HD-CHE-7 1.9E-14 4.5E-14 4.2E-13 
73 ESF-HD-CHE-l0 6.6E-14 6.8E-15 1.0E-13 
75 ESF-HD-HYD-7 4.9E-13 1.4E-13 3.0E-13 
78 ESF-HD-HYD-10 15.5E-14 1.1E-14 7.8E-14 
DTN: LB970600123142.001 [DIRS 105589]. 

Table 6.3.2.4-2. Parameters Used in Equation 5.2-1 for the Estimation of Local Permeability During 
DST Preheating (July 1997) 
Borehole ID_Data File L (m) Q (SLPM) P2-P1 (kPa) P1 (kPa) k (m2) 
177_02JUL19 12.822 10 30.67 89.24 7.01E-15 
158_02JUL08 16.076 99 16.68 90.14 1.12E-13 
159_02JUL07 16.062 99 8.48 89.38 2.33E-13 
160_01JUL03 16.012 499 0.83 89.45 1.26E-11 
160_01JUL04 12.964 499 4.20 89.52 2.89E-12 
161_01JUL01 16.312 299 11.09 89.52 5.22E-13 
161_01JUL02 13.264 199 15.99 89.45 2.79E-13 
162_01JUL01 17.822 54 27.01 89.45 3.32E-14 
163_02JUL01 16.312 99 32.60 89.38 5.29E-14 
164_02JUL02 16.012 299 15.99 89.45 3.59E-13 
164_02JUL03 12.964 299 17.99 89.52 3.76E-13 
165_02JUL05 16.012 299 16.61 89.52 3.44E-13 
166_02JUL06 16.038 99 21.36 89.59 8.63E-14 
167_01JUL06 12.822 199 35.56 89.52 1.17E-13 
170_02JUL21 16.012 99 5.38 89.72 3.72E-13 
171_02JUL20 16.012 99 22.88 89.45 8.02E-14 
172_02JUL18 16.312 99 6.34 89.45 3.10E-13 
173_02JUL17 17.822 21 33.15 89.52 1.02E-14 
174_02JUL16 16.312 21 21.50 89.45 1.79E-14 
176_02JUL22 16.012 199 5.72 89.38 7.05E-13 
100_02JUL15 7.512 99 7.37 93.24 4.61E-13 
115_02JUL12 7.512 99 4.69 93.17 7.36E-13 
116_02JUL11 7.512 199 6.68 93.24 1.03E-12 
117_02JUL10 7.512 299 12.13 93.31 8.26E-13 
118_02JUL09 7.512 299 8.13 93.17 1.26E-12 
98_02JUL13 7.512 499 1.17 93.24 1.51E-11 
99_02JUL14 7.512 299 4.62 93.24 2.26E-12 
DTN: LB980120123142.005 [DIRS 114134]. 

Table 6.3.2.4-3. Parameters Used in Equation 5.2-1 for the Estimation of Local DST Permeability 
During Preheating (Nov 1997) 
Borehole-Zone (data file ID) L(m) Q(SLPM) (P2-P1) (kPa) P1 (kPa) k (m2) 
57-1 (11797544PM) 8.84 20 4.58 89.2 1.46E-13 
57-2 (11897401AM) 6.10 100 18.5 89.5 2.26E-13 
57-3 (11897218PM) 7.62 2 39.9 89.3 1.58E-15 
57-4 (119971235AM) 10.55 200 12.6 89.7 4.37E-13 
58-1 (111697133AM) 6.10 20 5.12 90.2 1.74E-13 
58-2 (1116971151AM) 8.54 20 3.18 90.4 2.15E-13 
58-3 (1116971008PM) 17.98 171 3.74 89.9 8.45E-13 
59-1 (111097610PM) 10.06 100 22.1 86.9 1.27E-13 
59-1 (111097610PM) 10.06 20 4.25 86.9 1.45E-13 
59-2 (111197427AM) 7.62 100 8.95 90.8 4.04E-13 
59-3 (111197244PM) 8.54 100 10.8 88.0 3.11E-13 
59-4 (111297101AM) 7.19 200 7.8 91.6 9.69E-13 
60-1 (111097101PM) 5.49 20 2.75 88.8 3.62E-13 
60-1 (111097101PM) 5.49 100 21.2 88.8 2.13E-13 
60-2 (1110971118PM) 10.67 100 5.8 87.7 4.98E-13 
60-3 (111197936AM) 5.49 2 7.2 88.5 1.35E-14 
60-4 (111197753PM) 11.19 20 45.5 89.5 9.85E-15 
61-1 (117971235PM) 7.01 200 34 89.5 2.04E-13 
61-1 (117971235PM) 7.01 100 14.6 89.5 2.61E-13 
61-2 (117971052PM) 8.54 100 3.85 88.8 8.99E-13 
61-3 (11897909AM) 6.10 20 16.3 100.0 4.68E-14 
61-4 (11897727PM) 12.63 100 26.9 89.4 8.23E-14 
74-1 (11497749PM) 10.37 100 10.6 90.0 2.65E-13 
74-2 (114971139PM) 6.71 20 12.9 90.3 6.12E-14 
74-3 (11597330AM) 4.27 20 8.04 90.4 1.44E-13 
74-4 (111797308PM) 14.09 100 17.3 90.9 1.21E-13 
75-1 (11597140PM) 8.23 100 11.3 91.4 2.95E-13 
75-2 (11597450PM) 7.32 100 23.7 90.8 1.46E-13 
75-3 (115978PM) 10.67 100 17.3 89.9 1.53E-13 
75-4 (111797129PM) 8.48 100 4.68 90.8 7.24E-13 
76-1 (116971106AM) 7.93 100 13.1 90.0 2.64E-13 
76-2 (11697216PM) 8.54 20 5.27 89.8 1.29E-13 
76-3 (11697526PM) 8.54 20 9.89 89.0 6.76E-14 
76-4 (11697836PM) 10.00 20 6.82 90.5 8.62E-14 
77-1 (111597825PM) 8.84 100 21.5 91.0 1.40E-13 

Table 6.3.2.4-3. Parameters Used in Equation 5.2-1 for the Estimation of Local DST Permeability During 
Preheating (Nov 1997) (Continued) 
Borehole-Zone (data file ID) L(m) Q(SLPM) (P2-P1) (kPa) P1 (kPa) k (m2) 
77-1 (11697351PM) 8.84 20 1.87 90.6 3.57E-13 
77-1 (111397341PM) 8.84 20 1.72 89.9 3.91E-13 
77-2 (111697642AM) 5.49 20 21.2 90.0 4.21E-14 
77-2 (11697701PM) 5.49 20 33.1 89.3 2.56E-14 
77-2 (111397828PM) 5.49 20 31.4 88.7 2.74E-14 
77-2 (110797729AM) 5.49 20 31.1 89.4 2.75E-14 
77-3 (111697459PM) 22.70 100 3.83 90.5 3.94E-13 
78-1 (1117971013AM) 6.10 20 4.4 90.4 2.02E-13 
78-2 (11797419AM) 8.23 20 14.3 90.4 4.64E-14 
78-3 (11797554AM) 5.79 20 16 89.9 5.49E-14 
78-4 (1115971008AM) 14.49 20 4 91.1 1.09E-13 
185-1 (115971204PM) 5.79 20 2.75 89.5 3.46E-13 
185-2 (11597315PM) 8.54 100 15.6 89.4 2.07E-13 
185-3 (11597625PM) 15.24 100 20.9 90.2 9.26E-14 
185-4 (11597935PM) 6.65 20 4.18 89.6 2.01E-13 
186-1 (11497553PM) 5.79 20 2.47 90.4 3.80E-13 
186-2 (11497944PM) 8.54 20 22.1 93.9 2.71E-14 
186-3 (11597134AM) 13.11 20 51.9 89.9 7.34E-15 
186-4 (1117971151AM) 5.09 2 11.4 90.6 8.68E-15 
DTN: LB980120123142.004 [DIRS 105590]. 
Table 6.3.2.4-4. Date of Pneumatic Packer Deflation in the DST Hydrology Boreholes 
Packer Location Date 
57-4 March 22, 2000 
59-1 February 6, 2001 
60-1 November 14, 2001 
60-2 January 1, 2000 
60-3 November 30, 1999 
60-4 August 27, 1999a 
61-2 November 7, 2001 
61-3 July 24, 2000 
61-4 February 6, 2001 
76-3 December 24, 2000 
77-3 January 7, 1998 
78-2 December 24, 2000 
78-3 December 1, 1999 
78-4 September 9, 2000 
DTN: LB0208AIRKDSTH.001 [DIRS 160897]. 
a 
Reinflated February 16, 2000, deflated again August 15, 2000. 

Table 6.3.2.5-1. Laboratory Measurement of Dry-Drilled Cores from DST Permeability Boreholes (182, 
183, 184) 
Borehole 182, ESF-HD-PERM-1 
sample location saturation porosity bulk density particle density 
gravimetric 
water content 
(m) ( percent) ( percent) (g/cc) (g/cc) (g/g) 
5.5 86.67 9.61 2.27 2.51 0.037 
9.9 89.67 11.02 2.24 2.52 0.044 
15.5 85.08 10.27 2.25 2.51 0.039 
19.8 86.72 10.27 2.25 2.51 0.039 
Borehole 183, ESF-HD-PERM-2 
sample location saturation porosity bulk density particle density 
gravimetric 
water content 
(m) ( percent) ( percent) (g/cc) (g/cc) (g/g) 
5.2 83.84 9.62 2.27 2.51 0.035 
10.1 82.86 12.02 2.21 2.51 0.045 
15.3 76.61 13.35 2.19 2.53 0.046 
19.9 79.21 10.89 2.24 2.51 0.038 
Borehole 184, ESF-HD-PERM-3 
sample location saturation porosity bulk density particle density 
gravimetric 
water content 
(m) ( percent) ( percent) (g/cc) (g/cc) (g/g) 
5.1 81.40 9.87 2.25 2.50 0.035 
10.0 86.61 10.91 2.24 2.51 0.042 
15.5 85.80 9.43 2.27 2.51 0.035 
18.9 81.76 10.17 2.26 2.52 0.037 
Borehole Summary 
gravimetric 
saturation porosity bulk density particle density water content 
( percent) ( percent) (g/cc) (g/cc) (g/g) 
average 83.85 10.62 2.25 2.51 0.039 
standard 3.67 1.14 0.02 0.01 0.004 
deviation 
DTN: LB970500123142.003 [DIRS 131500]. 

Table 6.3.2.5-2. Laboratory Measurement of Wet-Drilled Cores from DST Boreholes (81, 52, 53, 56) 
Borehole 81, ESF-HD-MPBX-1 
gravimetric 
sample location saturation porosity bulk density particle density water content 
(m) ( percent) ( percent) (g/cc) (g/cc) (g/g) 
4.6a 96.43 10.15 2.25 2.50 0.043 
6.8 84.97 9.73 2.27 2.51 0.036 
12.3b 96.02 10.16 2.26 2.52 0.043 
17.8c 96.80 9.46 2.26 2.49 0.040 
20.8d 103.77 15.34 2.14 2.53 0.073 
24.1 94.10 8.77 2.28 2.50 0.036 
32.0 95.42 9.67 2.28 2.52 0.040 
35.1e 92.97 11.81 2.21 2.51 0.050 
39.4 92.82 10.31 2.26 2.52 0.042 
45.3 94.57 9.27 2.28 2.51 0.038 
a 
Entire surface of core was wet 
b Closed vertical fracture along core axis 
Two fractures with small apertured Two open fractures + crushed zone + porous looking calcite inclusion 
e 
Large open fracture down center of upper half 
Borehole 52, ESF-HD-CHE-1 
gravimetric 
sample location saturation porosity bulk density particle density water content 
(m) ( percent) ( percent) (g/cc) (g/cc) (g/g) 
15.3a 87.56 11.73 2.22 2.52 0.046 
18b 95.91 17.32 2.09 2.52 0.079 
26.5a 87.89 11.04 2.24 2.51 0.043 
29.9c 97.32 13.98 2.16 2.51 0.063 
35.0 96.98 18.19 2.07 2.53 0.085 
38.2d 98.58 16.57 2.11 2.53 0.077 
a 
b 
Water drop loss during transfer 
Large fracture exposed on surface 
Contains large open vug on side surface 
d Contains fracture on side surface 
Borehole 53, ESF-HD-CHE-2 
sample location saturation porosity bulk density particle density 
gravimetric 
water content 
(m) ( percent) ( percent) (g/cc) (g/cc) (g/g) 
10.7a 95.31 11.67 2.22 2.51 0.050 
16.7a 96.84 12.94 2.19 2.51 0.057 
22.2 94.96 11.52 2.22 2.51 0.049 
28.2b 74.03 15.62 2.11 2.50 0.055 
36.5b 95.47 12.80 2.21 2.53 0.055 
a 
Contains fracture on side surface 
b 
Large amount of water condensed in container 

Table 6.3.2.5-2. Laboratory Measurement of Wet-Drilled Cores from DST Boreholes (81, 52, 53, 56) 
(Continued) 
Borehole 56, ESF-HD-CHE-5 
gravimetric 
sample location saturation porosity bulk density particle density water content 
(m) ( percent) ( percent) (g/cc) (g/cc) (g/g) 
10.6 94.99 14.57 2.15 2.52 0.064 
18.0a 94.34 12.33 2.20 2.51 0.053 
23.2 95.58 16.02 2.11 2.51 0.072 
29.6 92.79 15.91 2.14 2.54 0.069 
35.7 86.21 11.65 2.21 2.51 0.045 
38.9 82.40 10.09 2.25 2.51 0.037 
a 
Contains fracture on side surface 
Borehole Summary 
gravimetric 
saturation porosity bulk density particle density water content 
( percent) ( percent) (g/cc) (g/cc) (g/g) 
average 93.15 12.54 2.20 2.51 0.053 
standard 
deviation 
5.93 2.75 0.06 0.01 0.015 
DTN: LB970500123142.003 [DIRS 131500]. 
Table 6.3.3.1-1. Summary of SNL-Installed Measurement System Specifications for the DST 
Measurement System Manufacturer Gage Range, Accuracy Comments 
Type-K Thermocouples Watlow 
ARI, Inc. (probes) 
Range: max 1280C 
Accuracy:  2.2C 
Chromel-
Alumel 
Vibrating Wire Displacement 
Transducers 
GEOKON 1 in. ( 25.4 mm) full range 
Accuracy: 0.02 percent of full range 
---
CIP Strain Gages BLH Electronics Karma Foil 4-in gages with gage factor of 2 
Temperature range limited by bonding 
epoxy and extension wire 
High Temperature LVDTs 
(Heated Drift) 
RDP Electrosense, 
Inc. 
 1 in. ( 25.4 mm) full range 
Accuracy of 0.5 percent linearity full range 
(linear within range; i.e. 0.5 percent of 
measured value) 
AC-LVDTs 
calibrated from ambient to 350C 
Source: CRWMS M&O 1998 [DIRS 108306], Table 6-1. 

Table 6.3.3.5-1. Summary of Thermal Expansion Data for Specimens from the DST Block for the First 
Heating Cycle 
Temp. 
MCTE on Heat-up (10-6/C) 
25-50-75-100-125-150-175-200-225-250-275-300-
(C) 50 75 100 125 150 175 200 225 250 275 300 325 
N = 17 17 17 17 17 17 17 17 17 17 17 13 
Mean = 7.34 8.99 9.73 10.22 10.91 12.20 14.74 22.31 27.34 33.88 54.13 52.28 
STD = 0.57 0.47 0.54 0.58 0.79 1.04 4.79 18.09 15.70 6.94 12.18 13.42 
95 percent 0.27 0.22 0.26 0.28 0.38 0.49 2.28 8.60 7.46 3.30 5.79 7.29 
DTN: SN0203L2210196.007 [DIRS 158322]. 
NOTE: N = Number of samples; STD = Standard deviation; 95 percent = 95 percent confidence limit.
Table 6.3.3.5-2. Summary of the Mean Thermal Expansion Coefficients for Specimens from DST Block 
for the First Cooling Cycle 
Mean CTE on Cool-Down (10-6/C) 
Temp. (C) 325-300 300-275 275-250 250-225225-200 200-175 175-150 150-125 125-100 100-75 75-5050-30 
N = 13 17 17 17 17 17 17 17 17 17 16 15 
Mean = 15.74 24.07 35.63 36.01 26.50 24.19 18.30 14.14 12.36 11.05 10.24 9.67 
STD = 1.88 5.70 8.39 8.32 4.69 9.82 7.37 2.61 1.76 0.84 1.24 0.66 
95 percent 1.02 2.71 3.99 3.96 2.23 4.67 3.50 1.24 0.84 0.40 0.61 0.33 
DTN: SN0203L2210196.007 [DIRS 158322]. 
NOTE: N = Number of samples; STD = Standard deviation. 
Table 6.3.3.5-3. Tabulation of DST Unconfined Compression Tests 
Statistical Summary 
All specimens TSw2, Tptpmn Mean 
Standard 
Deviation Count 
95 percent 
Confidence Limit 
Static Youngs Modulus (GPa) 36.8 3.5 16 1.7 
Static Poissons Ratio 0.201 0.040 16 0.020 
Unconfined Compressive 
Strength (MPa) 
176.4 65.8 16 32.3 
Axial Strain at Peak Stress 0.005209 0.002048 16 0.001004 
DTN: SNL02100196001.001 [DIRS 158420]. 
NOTES: Test specimen ESF-SDM-MPBX1-1.0-A was tested twice. Mean Young's modulus 
and mean Poisson's Ratio were calculated using data from the first loading only 
(UCDST001). Mean unconfined compressive strength was calculated using data from 
the second loading only (UCDST017). 
Test Conditions: Nominally 38.1 mm in diameter, 76.2 mm in length, ambient 
-1
temperature and pressure, nominal strain rate of 10-5 s. 

Table 6.3.3.5-4. Summary of Results for DST Reinforced Concrete 
Strength 
(MPa) 
Youngs 
Modulus 
(GPa) 
Poissons 
Ratio 
(0) 
Poissons 
Ratio 
(90) 
Loading Unloading Loading Unloading Loading Unloading 
Tests to Failure 
CIP11 58.2 31.4 NAa ---0.197 
CIP13 58.6 37.3 0.293 0.253 
CIP17 52.9 34.4 0.247 0.233 
Cyclic Loading Tests 
CIP14 
Cycle 1: 31.3 34.9 0.301 0.276 0.292 0.267 
Cycle 2: 32.2 34.4 0.254 0.281 0.244 0.274 
Cycle 3: 31.5 34.1 0.254 0.278 0.242 0.269 
Cycle 4: 31.7 33.3 0.252 0.250 0.238 0.217 
CIP18 
Cycle 1: 32.3 34.5 0.222 0.208 0.261 0.261 
Cycle 2: 35.2 34.3 0.228 0.210 0.255 0.266 
Cycle 3: 35.3 32.8 0.230 0.205 0.255 0.257 
Mean 33.3 34.0 0.253 0.244 0.247 0.259 
Standard Deviation 2.1 0.7 0.027 0.036 0.024 0.019 
No. of Measurements 10 7 9 7 10 7 
Mean (All Data) 56.6 33.6 0.249 0.252 
Standard Deviation 3.2 1.7 0.031 0.022 
No. of Measurements 3 17 16 17 
DTN: SNL23030598001.001 [DIRS 158370]. 
a 
Radial gage did not function properly so data are omitted. 

Table 6.3.3.5-5. Summary of Results for Nonreinforced Concrete 
Strength 
(MPa) 
Youngs 
Modulus 
(GPa) 
Poissons 
Ratio 
(0) 
Poissons 
Ratio 
(90) 
Loading Unloading Loading Unloading Loading Unloading 
Tests to Failure 
CIP7 62.89 36.8 NAa ---0.210 
CIP8 61.60 36.8 NAa ---0.235 
CIP10 38.33 45.0b 0.153 0.288 
Cyclic Loading Tests 
CIP9 
Cycle 1: 38.4 38.6 0.252 0.236 0.243 0.260 
Cycle 2: 41.7 41.1 0.272 0.256 0.278 0.284 
Cycle 3: 42.2 42.2 0.297 0.264 0.306 0.289 
Cycle 4: 42.3 42.8 0.274 0.271 0.271 0.307 
CIP3 
Cycle 1: 32.0 34.5 0.226 0.238 0.179 0.177 
Cycle 2: 36.2 34.3 0.239 0.242 0.205 0.171 
Cycle 3: 36.5 32.5 0.233 0.231 0.206 0.180 
Mean 38.8 38.0 0.243 0.248 0.242 0.238 
Standard Deviation 3.9 4.2 0.043 0.016 0.042 0.060 
No. of Measurements 10 7 8 7 10 7 
Mean (All Data) 54.3 38.5 0.246 0.241 
Standard Deviation 13.8 3.9 0.032 0.049 
No. of Measurements 3 17 15 17 
DTN: SNL23030598001.001 [DIRS 158370]. 
a 
b 
Radial gage did not function properly so data are omitted. 
CIP10 had a lower strength than CIP7 and CIP8. Because moduli are calculated between 50 microstrain and 40 
percent of the failure strength, the moduli for CIP10 were determined over a lower stress range than CIP7 and CIP8. 
Table 6.3.3.6-1. DST PLT Results from October 2000 
Maximum Displacement 
(mm) 
Secant Moduli 
(GPa) 
Elastic Moduli 
(GPa) 
Ambient Side 
Deep Anchor 1.69 17.3 41.0 
Medium Anchor 1.49 19.6 49.5 
Shallow Anchor 1.21 24.2 59.4 
Elevated Temp. 
Deep Anchor LVDT malfunctioned LVDT malfunctioned LVDT malfunctioned 
Medium Anchor .68 43 62.5 
Shallow Anchor .55 53.2 99.0 
DTN: SN0011F3912298.022 [DIRS 158392], SN0011F3912298.023 [DIRS 158399] 
NOTE: Maximum pressure equals 31.75 MPa. 
TDR-MGR-HS-000002 REV 00 T6.3-33 September 2004 

Table 6.3.3.6-2. Rock Mass Thermal Expansion Coefficients from DST MPBX Data 
Thermal expansion coefficients in strain/C 
Tmax, C 25C-50C-75C-100C-125C-150C-175C-
50C 75C 100C 125C 150C 175C 200C 
DST MPBX data through 1/14/2002 
HD-81-MPBX1 
Anc 4-Anc 5 
178.02 1.94 3.27 4.61 3.98 7.02 9.47 12.55 
HD-81-MPBX1 
Anc 5-Anc 6 
171.74 3.65 1.19 0.46 4.37 7.04 10.34 
HD-82-MPBX2 
Anc 2-Anc 3 
158.24 0.48 2.78 6.84 4.89 7.21 8.40 
HD-82-MPBX2 
Anc 3-Anc 4 
163.03 2.82 1.36 4.52 6.12 8.15 10.23 
HD-82-MPBX2 
Anc 4-Anc 5 
168.72 0.55 3.31 4.66 6.17 7.81 9.79 
HD-82-MPBX2 
Anc 5-Anc 6 
171.48 2.76 2.57 4.03 0.85 7.38 10.60 
Avg., DST MPBX 2.03 2.41 4.19 4.40 7.43 9.80 12.55 
Std. Dev., DST MPBX 1.29 0.93 2.07 1.95 0.46 0.80 
Avg., DST MPBX (no 
outliers) 
2.03 2.41 4.45 5.11 7.43 9.80 12.55 
Std. Dev., DST MPBX 1.29 0.93 0.29 1.00 0.46 0.80 
(no outliers) 
SHT Pre-Test Heat. 300 7.47 8.88 9.64 10.01 10.72 11.26 12.78 
(TDIF 305593) 
SHT Post-Test 1st 331 8.64 9.87 8.95 9.64 10.68 11.77 12.34 
Heat. (TDIF 307123) 
SHT Post-Test 2nd 323 8.53 9.67 9.01 10.21 11.13 12.23 14.10 
Heat. (TDIF 307123) 
DST Pre-Test 1st 327 7.34 8.99 9.73 10.22 10.91 12.20 14.74 
Heat. (TDIF 312864) 
DST Pre-Test 2nd 331 7.22 8.87 9.63 10.24 11.28 13.22 19.37 
Heat. (TDIF 312864) 
DTN: SN0407F3912298.060 [DIRS 170627]. 

Table 6.3.4.1-1. Summary of DST Water Samples, the Field Data, and Important Observations through 
January 14, 2002 
Approx. Approx. Est. Electrical Total 
Date 
Start 
Time 
Finish 
Time 
Volume 
(mL) 
Collection 
Hole/Zone pH 
Conductivity 
(mS/cm) 
Dissolved 
Solids (ppm) Sample Number 
Solution 
Temp. (C) Comments 
06/04/98 9:30 500 60/2 7.5 SPC00527968 anion 
06/04/98 9:30 500 60/2 7.5 SPC00527969 metals 
06/04/98 9:30 500 60/2 7.5 SPC00527970 O, H, & C 
06/04/98 9:30 500 60/2 7.5 SPC00527971 Tritium 
06/04/98 9:30 500 60/2 7.5 SPC00527972 U, Sr 
06/04/98 9:30 500 60/2 7.5 SPC00527973 U, Sr 
06/04/98 9:30 500 60/2 7.5 SPC00527974 36CI 
06/04/98 9:30 2200 60/2 7.5 SPC00527975 Surplus H2O 
06/04/98 10:45 250 60/3 7.7 SPC00527977 
08/12/98 8:23 8:50 125 60/2 6.9 SPC00527915 
08/12/98 8:51 9:10 900 60/3 6.8 SPC00527916 
08/12/98 9:49 10:07 200 77/3 5.5 SPC00527917 
11/12/98 9:53 10:04 100 59/4 6.6 SPC00541803 25 Color noted as yellow 
by lab report 
11/12/98 10:22 11:42 4000 60/3 6.9 SPC00541804 26.5 - 49.6 
11/12/98 13:37 14:04 3000 186/3 6.8 SPC00541805 34.3 - 35.1 
01/26/99 10:20 10:29 25 59/4 SPC00504397 Not Filtered 
01/26/99 9:11 9:14 2000 60/3 7.36-7.44 140-141 SPC00504396 52 est. 3.5 L pumped, 
not filtered 
01/26/99 11:33 11:50 800 186/3 7.24-7.17 320 SPC00527961 Not Filtered 
03/30/99 9:50 10:10 700 60/3 8.0 SPC00529637 
03/30/99 12:40 200 77/3 7.0 SPC00529634 31 
04/20/99 9:00 9:32 175 60/3 4.19-4.50 30 SPC00551100 32-41 
04/20/99 12:00 13:45 500 60/3 4.8 10 SPC00551103 40 
04/20/99 9:15 10:07 375 BH80 6.39-6.72 30-50 SPC00551102 64 
05/10/99 10:20 40* 60/3 4.78-4.80 12.4 7.98 SPC00551104 21.1-24.0* 
05/10/99 10:24 40* 60/3 4.68 11.37 7.09 SPC00551105 34.8-36.3* 
05/10/99 10:10 10:29 175* 60/3 4.68-4.80* SPC00551106 21.1-36.3* 100 mL used for 
alkalinity 
05/10/99 11:04 40* 60/3 4.84 9.67-8.72 6.01-5.38 SPC00551107 35.3-41.3* Conductivity & TDS 
represent pre - post 
filtration 
05/25/99 9:40 40* 60/3 4.75 11.74 7.43 SPC00551111 26.4-27.3* 
05/25/99 9:23 40* 60/3 4.68 16.07 10.18 SPC00551110 24.1-25.6* 
05/25/99 9:10 9:50 150* 60/3 4.68-4.75* SPC00551151 24.1-27.3* 100 mL used for 
alkalinity 
05/25/99 10:04 40* 60/3 4.75 9.37 5.92 SPC00551112 24.8* 
06/24/99 9:17 40* 60/3 5.02 8.84 SPC00551154 27.5* 
06/24/99 9:25 9:55 170* 60/3 5.08* SPC00551157 28.9* 100 mL used for 
alkalinity 
06/24/99 9:25 9:27 40* 60/3 5.08 SPC00551156 28.9* 
10/27/99 12:54 150* 59/2 5.93 113.4 SPC00557028* 43.4* 
10/27/99 13:03 50* 59/2 6.08 110.2 SPC00557029* 52* 
10/27/99 13:27 250* 59/3 6.64 203.1 SPC00557035* 60.2* 
10/27/99 13:45 40* 59/3 6.81 192.3 118.1 SPC00557036* 62.3* 
10/27/99 14:27 50* 76/3 6.14-6.46 SPC00557039* 28.7* 
11/30/99 10:21 50* 59/2 7.53 80.8 52.84 SPC00557082* 39.5* 
11/30/99 10:24 150* 59/2 7.24 69.14 43.9 SPC00557080* 46.6* 
11/30/99 10:30 59/2 6.8 67.04 42.3 
11/30/99 10:38 40* 59/2 70.3 44.36 SPC00557083* 55.9* 
11/30/99 10:47 50* 59/3 7.06 105.2 65.86 SPC00557042* 47.3* 
11/30/99 10:50 150* 59/3 7.27 106.8 65.4 SPC00552575* 60* 
11/30/99 10:55 40* 59/3 7.47 112 63.8 SPC00557043* 68.4* 

Table 6.3.4.1-1. Summary of DST Water Samples, the Field Data, and Important Observations through 
January 14, 2002 (Continued) 
Approx. Approx. Est. Electrical Total 
Date 
Start 
Time 
Finish 
Time 
Volume 
(mL) 
Collection 
Hole/Zone pH 
Conductivity 
(mS/cm) 
Dissolved 
Solids (ppm) Sample Number 
Solution 
Temp. (C) Comments 
11/30/99 11:59 50* 76/3 7.04 307.2 198.6 SPC00552577* 37.7* 
11/30/99 12:03 150* 76/3 6.91 312.3 201.3 SPC00557085* 48.9* 
11/30/99 12:10 125* 76/3 6.86 317.7 199.4 SPC00552576* 57.9* 
11/30/99 12:20 40* 76/3 6.94 326.2* 207.3 SPC00552579* 53.2* 
11/30/99 13:10 50* 77/3 4.68 156.4 9.99 SPC00557084* 45.2* Reported 
conductivity and TDS 
values are suspect. 
01/25/00 9:30 ---150* 59/2 7.43 104.7 67.1 SPC00550668* 27.1* 
01/25/00 9:33 ---150* 59/2 7.07 62.03 39.35 SPC00550669* 38.5* 
01/25/00 9:36 ---150* 59/2 6.85 63.01 39.31 SPC00550671* 51.5* 
01/25/00 9:45 59/2 6.68 61.21 37.89 57.5* 
01/25/00 11:35 50* 77/2 4.63 61.24 40.24 SPC00550672* 37* 
01/25/00 12:00 50* 77/3 3.47 224.9 145.5 SPC00550674* 36.8* 
05/23/00 11:58 150* 59/2 6.96 96.13 61.27 SPC00550680* 30.5* 
05/23/00 12:00 150* 59/2 6.95 98.55 61.91 SPC00550682* 42.6* 
05/23/00 12:15 59/2 6.96 99.73 61.76 60.4* 
05/23/00 12:26 120* 59/3 5.19 5.2 3.14 SPC00550687* 46.4* 
05/23/00 9:11 ---160* 76/3 6.92-6.96 134.8 86.86 SPC00550697* 21-40.8* 
06/29/00 11:20 59/2 6.81-6.92 100.3 62.73 47.2* 
06/29/00 11:24 59/2 7 111.7 68.4 58.4* 
06/29/00 11:27 59/2 6.99-7.08 79.9 49.12 50.9* 
06/29/00 11:45 59/3 5.39 4.39 2.74 40.4* 
06/29/00 11:50 59/3 5.6 4.7 2.91 45.9* 
06/29/00 12:00 59/4 4.6 13.72 8.48 50.2* 
06/29/00 12:03 59/4 4.74 14.83 9.21 49.2* 
06/29/00 9:35 76/3 5.75 13.81 8.64 35.8* 
06/29/00 9:46 76/4 4.74-4.77 12.85 7.99 34.4* 
06/29/00 10:10 78/2 4.12 35.64 20.44 32.8* 
06/29/00 10:18 78/3 4.22 28.54 17.78 42.1* 
08/21/00 10:46 10:52 20* 76/3 6.27-5.04 
08/21/00 10:52 11:02 15* 76/4 5.01-4.99 
08/21/00 11:03 11:10 10* 78/3 5.05-5.21 
01/23/01 12:00 12:03 100* 59/2 SPC00530399* Ultrameter problem, 
no pH, TDS 
01/23/01 12:00 12:03 100* 59/2 SPC00529636* Ultrameter problem, 
no pH, TDS 
01/23/01 12:00 12:03 100* 59/2 SPC00529635* Ultrameter problem, 
no pH, TDS 
01/23/01 12:00 12:03 90* 59/2 SPC00530398* Ultrameter problem, 
no pH, TDS 
01/23/01 12:13 12:15 60* 59/3 SPC00530316* Ultrameter problem, 
no pH, TDS 
01/23/01 12:13 12:15 60* 59/3 SPC00530314* Ultrameter problem, 
no pH, TDS 
01/23/01 12:13 12:15 60* 59/3 SPC00530313* Ultrameter problem, 
no pH, TDS 
01/23/01 12:13 12:15 60* 59/3 SPC00530397* Ultrameter problem, 
no pH, TDS 
01/23/01 12:30 12:35 30* 60/4 SPC00530318* Ultrameter problem, 
no pH, TDS 
04/17/01 10:10 10:25 120 59/2 4.9 6.6 10.4 SPC00559467 32 Preserved with HNO3 
04/17/01 10:10 10:25 100 59/2 5.3 6.7 4.2 SPC00559468 35 Preserved with HNO3 
04/17/01 10:40 10:50 200 59/3 6.0 54.2 34.7 SPC00559463 30 Preserved with HNO3 
04/17/01 10:40 10:50 100 59/3 5.8 30.6 19.0 SPC00559465 38 Preserved with HNO3 
04/17/01 11:15 11:30 200 59/4 5.2 9.8 6.1 SPC00559466 33 Preserved with HNO3 

Table 6.3.4.1-1. Summary of DST Water Samples, the Field Data, and Important Observations through 
January 14, 2002 (Continued) 
Approx. Approx. Est. Electrical Total 
Date 
Start 
Time 
Finish 
Time 
Volume 
(mL) 
Collection 
Hole/Zone pH 
Conductivity 
(mS/cm) 
Dissolved 
Solids (ppm) Sample Number 
Solution 
Temp. (C) Comments 
04/17/01 12:40 12:45 200 76/2 5.7 40.1 25.8 SPC00559460 29 
04/17/01 12:45 12:50 500 76/2 7.7 41.5 25.8 SPC00559464 43 Preserved with HNO3 
04/17/01 12:50 12:55 500 76/2 7.9 40.2 24.8 SPC00559461 48 
04/17/01 12:55 13:00 500 76/2 8.1 38.9 24.7 SPC00559462 33 
04/17/01 13:00 13:09 500 76/2 8.2 38.4 24.4 SPC00559459 29 
04/17/01 13:09 13:20 250 76/2 8.2 37.8 24.1 SPC00559458 30 
04/17/01 13:20 13:25 120 76/2 8.3 33.5 22.5 SPC00559456 33 
04/17/01 13:25 13:33 120 76/2 8.3 37.3 24.0 SPC00559457 31 
06/26/01 10 76/3 5.3 3.7 32 
06/26/01 11:40 11:55 80 76/4 5.5 11.2 6.7 SPC00559493 42 
06/26/01 12:10 12:20 25 78/2 5.3 5.2 3.2 SPC00559494 44 
06/26/01 12:25 12:35 25 78/3 5.0 5.2 3.4 SPC00559495 47 
06/26/01 12:40 12:50 25 78/4 5.0 6.7 4.0 SPC00559496 44 
06/27/01 10:40 10:50 240 59/2 5.2 6.1 3.6 SPC00559497 57 Preserved with HNO3 
06/27/01 10:50 11:25 500 59/2 5.1 4.5 2.6 SPC00559498 58 
06/27/01 11:25 12:10 500 59/2 5.2 4.2 2.5 SPC00559499 56 
06/27/01 12:10 12:40 100 59/2 5.6 6.4 3.8 SPC00559471 49 
06/27/01 12:40 13:15 500 59/2 5.1 4.6 2.7 SPC00559472 54 
06/27/01 13:15 13:35 25 59/2 5.5 4.5 3.1 SPC00559473 48 
06/27/01 13:35 14:20 500 59/2 5.2 4 2.4 SPC00559474 42 
06/28/01 12:30 12:50 100 59/3 4.9 8.3 5.1 SPC00559476 44 
06/28/01 9:20 12:00 400 BH-72 4.8 14.6 8.9 SPC00559475 55 Using flex-tubing and 
rods 
06/28/01 13:30 13:50 40 60/3 3.3 189 115.0 SPC00559477 35 
06/28/01 13:55 14:05 10 60/4 5.1 10.5 8.8 39 
08/07/01 5 76/3 5.2 4.1 2.5 48 
08/07/01 11:55 12:05 60 76/4 5.4 7.8 4.7 SPC00559454 61 
08/07/01 11:55 12:05 15 76/4 5.4 7.8 4.7 SPC00575214 61 
08/07/01 12:15 12:25 100 77/2 3.3 284 173.0 SPC00559455 61 
08/07/01 12:15 12:25 15 77/2 3.3 284 173.0 SPC00575218 61 
08/07/01 12:35 12:45 60 77/3 3.3 231 138.0 SPC00559484 60 
08/07/01 12:35 12:45 15 77/3 3.3 231 138.0 SPC00575213 60 
08/07/01 12:55 13:05 30 78/2 4.5 8.8 5.2 SPC00559485 47 
08/07/01 5 78/3 5.2 9.1 5.6 40 
08/07/01 10 78/4 5.5 14.3 8.8 38 
08/08/01 10:30 10:50 500 59/2 5.4 2.2 1.3 SPC00559486 38 
08/08/01 10:30 10:50 15 59/2 5.4 2.2 1.3 SPC00575215 38 
08/08/01 11:00 11:40 200 59/3 4.9 6 3.6 SPC00559487 58 
08/08/01 11:00 11:40 15 59/3 4.9 6 3.6 SPC00575212 58 
08/08/01 11:50 12:05 200 59/4 5.1 2.8 1.6 SPC00559488 51 
08/08/01 11:50 12:05 15 59/4 5.1 2.8 1.6 SPC00575217 51 
08/08/01 5 60/1 4.8 25 15.0 35 
08/08/01 12:20 12:35 100 60/2 3.1 309 194.0 SPC00559490 52 
08/08/01 12:20 12:35 15 60/2 3.1 309 194.0 SPC00575216 52 
08/08/01 13:30 13:50 15 60/3 3.4 186 114.0 SPC00559491 56 
08/08/01 13:55 14:05 10 60/4 4.4 14.5 8.8 41 
10/22/01 10:30 10:40 50 76/3 5.2 8.4 5.1 SPC00575220 42 
10/22/01 10:45 10:55 30 76/4 5.1 5.2 3.0 SPC00575222 62 
10/22/01 11:05 11:15 100 77/2 3.1 403 245.0 SPC00575226 53 
10/22/01 11:20 11:30 30 77/3 3.2 344 208.0 SPC00575223 58 
10/22/01 5 78/1 4.2 11.6 6.9 57 

Table 6.3.4.1-1. Summary of DST Water Samples, the Field Data, and Important Observations through 
January 14, 2002 (Continued) 
Approx. Approx. Est. Electrical Total 
Date 
Start 
Time 
Finish 
Time 
Volume 
(mL) 
Collection 
Hole/Zone pH 
Conductivity 
(mS/cm) 
Dissolved 
Solids (ppm) Sample Number 
Solution 
Temp. (C) Comments 
10/22/01 5 78/2 4.8 5.6 3.3 52 
10/22/01 10 78/3 5.0 7.7 4.5 59 
10/22/01 10 78/4 5.4 10 6.0 53 
10/22/01 10:30 10:50 100 59/2 4.9 8.5 5.2 SPC00575227 52 
10/22/01 10 59/3 5.0 5.2 3.0 57 
10/22/01 10 59/4 4.9 6 3.5 61 
10/22/01 12:50 13:00 80 60/2 3.2 406 252.0 SPC00575225 56 
10/22/01 13:10 13:20 30 60/3 3.5 151 90.0 SPC00575221 56 
10/22/01 13:25 13:35 40 60/4 3.8 63 38.0 SPC00575224 49 
10/22/01 5 61/1 4.4 14.6 8.7 51 
10/22/01 10 61/3 4.9 7.9 4.8 45 
10/22/01 10 61/4 5.0 7.1 4.3 52 
11/08/01 14:45 15:10 50 BH 72 5.1 20.0 12.5 SPC00575228 28 HF Experiment 
11/08/01 BH 72 5.5 17.5 10.8 27 HF Experiment 
11/15/01 11:00 12:15 20 BH 55 7.5 279.0 176.0 SPC00575231 23 HF Experiment 
11/21/01 100 SPC00559482 HF Exp., rinse of flex 
tubing 
11/21/01 4 BH 55 SPC00559483 HF Experiment-not 
filtered 
11/26/01 9:50 10:30 100 BH 72 5.3 13.8 8.6 SPC00575219 25 HF Experiment 
11/26/01 13:10 15:10 20 BH 55 5.0 20.5 12.8 SPC00575229 24 HF Experiment 
11/29/01 10:30 11:00 100 BH 72 3.8 39.7 24.3 SPC00559478 39 HF Experiment 
11/29/01 10:30 11:00 BH 72 3.8 41.4 25.3 40 HF Experiment 
11/29/01 11:30 14:30 13 BH 55 5.2 SPC00559479 HF Experiment 
12/05/01 12:00 13:00 200 BH 72 3.5 111.5 70.6 SPC01016065 21 HF Experiment 
12/05/01 12:00 13:00 BH 72 3.4 167.3 106.0 32 HF Experiment 
12/05/01 12:00 13:00 500 BH 72 3.4 135.0 85.4 SPC01016066 20 HF Experiment 
12/05/01 11:00 15:10 10 BH 55 SPC01016067 HF Experiment 
01/07/02 2 BH 55 SPC01016084 HF Experiment 
01/07/02 11:30 11:40 500 76/2 7.8 30.2 18.0 SPC01016082 52 
01/07/02 11:30 11:40 15 76/2 7.8 30.2 18.0 SPC01014151 52 
01/07/02 11:40 11:50 50 76/3 4.9 7.3 4.3 SPC01016076 56 
01/07/02 11:40 11:50 15 76/3 4.9 7.3 4.3 SPC01014154 56 
01/07/02 11:50 12:00 30 76/4 4.8 5.5 3.2 SPC01016074 55 
01/07/02 11:50 12:00 15 76/4 4.8 5.5 3.2 SPC01016071 55 
01/07/02 12:15 12:25 30 78/2 5.1 4.9 2.9 SPC01016075 44 
01/07/02 12:15 12:25 15 78/2 5.1 4.9 2.9 SPC01016070 44 
01/07/02 12:25 12:35 30 78/3 4.9 5.1 3.1 SPC01016078 43 
01/07/02 12:25 12:35 15 78/3 4.9 5.1 3.1 SPC01014147 43 
01/07/02 12:40 12:50 40 78/4 4.9 5.4 3.2 SPC01016072 40 
01/07/02 12:40 12:50 15 78/4 4.9 5.4 3.2 SPC01014149 40 
01/07/02 13:05 13:20 400 59/2 5.2 3.3 2.0 SPC01016083 30 
01/07/02 13:05 13:20 15 59/2 5.2 3.3 2.0 SPC01014150 30 
01/07/02 13:20 13:35 250 59/3 5.3 2 1.2 SPC01016079 34 
01/07/02 13:20 13:35 15 59/3 5.3 2 1.2 SPC01014153 34 
01/07/02 13:40 13:50 40 59/4 4.8 5.7 3.5 SPC01016073 35 
01/07/02 13:40 13:50 15 59/4 4.8 5.7 3.5 SPC01014152 35 
01/07/02 14:00 14:10 50 61/2 5.5 6.5 4.0 SPC01016081 32 
01/07/02 14:00 14:10 15 61/2 5.5 6.5 4.0 SPC01014148 32 
01/07/02 14:15 14:25 40 61/3 5.2 4.8 2.9 SPC01016080 28 
01/07/02 14:15 14:25 15 61/3 5.2 4.8 2.9 SPC01016068 28 

Table 6.3.4.1-1. Summary of DST Water Samples, the Field Data, and Important Observations through 
January 14, 2002 (Continued) 
Approx. Approx. Est. Electrical Total 
Date 
Start 
Time 
Finish 
Time 
Volume 
(mL) 
Collection 
Hole/Zone pH 
Conductivity 
(mS/cm) 
Dissolved 
Solids (ppm) Sample Number 
Solution 
Temp. (C) Comments 
01/07/02 14:30 14:40 50 61/4 5.1 7.7 4.5 SPC01016077 33 
01/07/02 14:30 14:40 15 61/4 5.1 7.7 4.5 SPC01016069 33 
01/09/02 9:30 9:50 120 77/2 3.7 49.8 30.6 SPC01014156 41 
01/09/02 9:30 9:50 15 77/2 3.7 49.8 30.6 SPC01014159 41 
01/09/02 10:00 10:20 100 77/3 3.4 176 106.0 SPC01014155 54 
01/09/02 10:00 10:20 15 77/3 3.4 176 106.0 SPC01014158 54 
01/09/02 10:20 10:50 150 BH 72 3.3 85.8 54.9 SPC01014157 16 HF Exp. F.A. done 
on 1/16/02 
01/09/02 10:20 10:50 15 BH 72 3.3 85.8 54.9 SPC01014160 16 HF Exp. F.A. done 
on 1/16/02 
DTN: SN0208F3903102.002 [DIRS 161246] 
NOTES: A single set of field measurements, in conjunction with multiple samples from a single borehole/zone, indicates that 
samples were split. 
Volumes and temperatures listed are included for information only. 
Small fluid volumes (<10mL) were depleted after conducting field measurements and not saved as samples. 
Blank cell indicates no measurement recorded. 
Asterisk indicates information source from Cho 2001 [DIRS 159473]. 

Table 6.3.4.1-2. Chemical Analyses of DST Borehole Water Samples 
SMF No. (SPC0) 1002488 1002586 1002525 0527969a 0527968a 0527977a 0527915a 0527916a 0527917a 
Collection Date Pre-Htng. Pre-Htng. Pre-Htng. 06/04/98 06/04/98 06/04/98 08/12/98 08/12/98 08/12/98 
Collection Time 
Sample ID PERM-1b PERM-2b PERM-3b BH 60-2 BH 60-2 BH 60-3 BH 60-2 BH 60-3 BH 77-3 
Field pHc 7.79 8.32 8.31 7.5 na 7.7 6.9 6.8 5.5 
Metals / Cations 
Na (mg/L) 60.5 61.0 61.5 20.0 na 24.0 20.4 17.2 2.4 
Si (mg/L) 37 31 35 56 na 41 51.8 43.5 1.48 
Ca (mg/L) 98.17 106.17 96.67 20 na 25 19.9 18.7 2.09 
K (mg/L) 6.0 7.0 9.0 6.0 na 4.5 5.4 4.5 1.4 
Mg (mg/L) 25.65 16.55 17.35 2.9 na 5.7 1.21 4.0 0.21 
Al (mg/L) < 0.06 < 0.06 < 0.06 0.12 na 0.017 d < 0.06 0.003 d < 0.06 
B (mg/L) 3.05 2.75 2.75 1.2 na 0.92 1.84 1.14 0.13 
S (mg/L) 42.25 38.6 38.65 5.5 na 9.2 4.5 5.2 1.4 
Fe (mg/L) < 0.02 < 0.02 < 0.02 0.04 na < 0.02 0.02 0.12 < 0.02 
Li (mg/L) 0.1 0.45 0.05 0.07 na 0.07 0.03 0.040 < 0.01 
Sr (mg/L) 1.4 1 1.05 0.18 na 0.34 0.11 2.21 0.05 
Anions 
HCO3 (mg/L)e na na na na na na 
F (mg/L) 0.36 0.96 0.76 na 1.00 0.82 0.71 0.43 0.41 
Cl (mg/L) 122.73 109.93 123.13 na 10 16 6.14 5.52 2.15 
Br (mg/L) 0.6 0.76 1.2 na 0.84 0.73 0.05 0.21 0.03 
SO4 (mg/L) 124.18 111.38 119.78 na 17 30 4.88 8.81 1.86 
PO4 (mg/L) < 0.07 < 0.07 < 0.07 na < 0.07 < 0.07 0.25 0.16 1.06 
NO2 (mg/L) < 0.04 < 0.04 < 0.04 na < 0.01 < 0.01 < 0.04 < 0.04 < 0.04 
NO3 (mg/L) 21.72 2.52 10.40 na 3.00 3.6 0.46 0.60 0.22 
SMF No. (SPC0) 0541803a 0541803a,f 0541804a 0541804a,f 0541805a 0541805a,f 0504397a 0504396a 0527961a 
Collection Date 11/12/98 11/12/98 11/12/98 11/12/98 11/12/98 11/12/98 01/26/99 01/26/99 01/26/99 
Collection Time 
Sample ID BH 59-4 BH 59-4 BH 60-3 BH 60-3 BH 186-3 BH 186-3 BH 59-4 BH 60-3 BH 186-3 
Field pHc 6.63 6.63 6.92 6.92 6.83 6.83 na 7.4 7.2 
Metals / Cations 
Na (mg/L) 22.6 135 10.1 20.3 105 17.0 219 19.1 25.9 
Si (mg/L) 33.5 44.2 60.0 53.8 16.0 27.2 12.0 65.0 49.3 
Ca (mg/L) 476 450 15.3 13.9 11.5 20.2 429 5.93 2.92 
K (mg/L) 29.5 37.8 8.7 7.8 3.5 3.9 29.7 4.1 5.9 
Mg (mg/L) 64.1 83.9 3.35 3.00 5.1 5.68 164 1.17 6.32 
Al (mg/L) 0.01 d < 0.06 0.033 d 0.033 d < 0.003 d < 0.003 d 0.086 d < 0.06 < 0.06 
B (mg/L) 4.47 4.13 1.58 1.41 0.51 0.58 6.68 1.75 0.84 
S (mg/L) 50.7 64.8 11.6 10.5 8.47 9.42 109 6.4 7.9 
Fe (mg/L) < 0.02 < 0.02 0.02 < 0.02 0.02 < 0.02 < 0.02 < 0.02 0.09 
Li (mg/L) 0.21 0.20 0.040 0.040 0.05 0.05 0.33 0.02 0.05 
Sr (mg/L) 4.02 3.71 0.22 0.20 0.30 0.34 5.84 0.09 0.37 
Anions 
HCO3 (mg/L)e na na na na na na na 41 116 
F (mg/L) 0.8 4.3 0.49 0.50 0.56 0.62 0.51 1.27 1.20 
Cl (mg/L) 1,130 1,250 19.5 19.6 18.7 18.6 1,160 10.3 23.3 
Br (mg/L) 1.13 < 0.07 0.6 0.51 0.67 0.60 1.51 0.15 0.32 
SO4 (mg/L) 226 213 30.6 30.8 26.3 26.2 240 13.5 21 
PO4 (mg/L) < 5 < 0.2 < 0.2 < 0.2 < 0.2 < 0.2 < 0.5 < 0.05 < 0.1 
NO2 (mg/L) < 3 < 10 < .10 < .10 < .1 < .1 < .3 < .03 < 0.05 
NO3 (mg/L) 3.12 7.81 3.38 3.17 7.47 7.27 11.6 2.56 6.73 

Table 6.3.4.1-2. Chemical Analyses of DST Borehole Water Samples (Continued) 
SMF No. (SPC0) 0529637-#1 a 0529637-#2 a 0529637-#3 a 0529634a 0551100a 0551103a 0551104a 0551105a 0551106a 
Collection Date 03/30/99 03/30/99 03/30/99 03/30/99 04/20/99 04/20/99 05/10/99 05/10/99 05/10/99 
Collection Time 9:50 AM 9:55 AM 10:10 AM 9:32 AM 1:45 PM 10:20 AM 10:24 AM 
Sample ID BH 60-3 BH 60-3 BH 60-3 BH 77-3 BH 60-3 BH 60-3 BH 60-3 BH 60-3 BH 60-3 
Field pHc 8.0 na na 4.8 4.19-4.50 4.77 4.78-4.80 4.68 na 
Metals / Cations 
Na (mg/L) 11.2 11.0 2.2 < 0.2 0.14 < 0.05 1.8 2.5 0.15 
Si (mg/L) 62.8 59.8 12.1 1.03 0.7 < 0.5 1.1 1.2 0.6 
Ca (mg/L) 2.06 2.27 1.22 0.41 0.14 0.10 0.14 0.09 0.22 
K (mg/L) 2.4 2.4 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 
Mg (mg/L) 
Al (mg/L) 
0.27 
0.36, 0.27d 
0.26 
0.36, 0.27d 
0.01 
0.08, 0.07d 
0.020.005 d 
< 0.005 
< 0.2 
< 0.005 
< 0.2 
< 0.005 
< 0.2 
< 0.005 
< 0.2 
< 0.005 
< 0.2 
B (mg/L) 2.10 2.11 1.23 0.09 1.7 1.0 2.3 2.6 0.9 
S (mg/L) 1.83 1.82 0.42 < 0.02 < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 
Fe (mg/L) < 0.02 < 0.02 < 0.02 0.05 0.02 0.01 < 0.01 < 0.01 < 0.01 
Li (mg/L) 0.02 < 0.01 < 0.01 < 0.01 < 4 < 4 < 4 < 4 < 4 
Sr (mg/L) 0.02 0.02 0.01 < 0.01 < 0.05 < 0.05 < 0.05 < 0.05 < 0.05 
Anions 
HCO3 (mg/L)e 25.0 na na 1.25 na na na na 8.1 
F (mg/L) 1.02 0.97 0.11 0.01 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 
Cl (mg/L) 4.15 3.92 0.72 0.3 0.05 0.08 0.06 0.05 0.11 
Br (mg/L) < 0.04 < 0.04 < 0.04 < 0.04 < 0.03 < 0.03 < 0.03 < 0.03 < 0.03 
SO4 (mg/L) 3.83 3.75 0.79 0.13 0.1 0.09 0.09 0.09 0.08 
PO4 (mg/L) < 0.05 < 0.05 < 0.05 < 0.05 < 0.02 < 0.02 0.92 0.84 0.62 
NO2 (mg/L) < 0.03 < 0.03 < 0.03 < 0.03 < 0.007 < 0.007 < 0.007 < 0.007 < 0.007 
NO3 (mg/L) 0.92 0.84 0.17 0.065 < 0.02 < 0.02 < 0.02 < 0.02 < 0.02 
SMF No. (SPC0) 0551107 0551110a 0551111a 0551154a 0551155a 0551159a 0551160a 0551169a 0557029a 
Collection Date 05/10/99 05/25/99 05/25/99 06/24/99 06/24/99 08/09/99 08/09/99 08/10/99 10/27/99 
Collection Time 11:04 AM 9:23 AM 9:40 AM 9:17 AM 9:23 AM 
Sample ID BH 60-3 BH 60-3 BH 60-3 BH 60-3 BH 60-3 BH 59-2(AC) BH 59-2(BC) BH 61-3 BH 59-2 
Field pHc 4.84 4.68 4.75 5.02 na na na na na 
Metals / Cations 
Na (mg/L) 2.8 1.8 1.6 1.87 2.26 30 24 19 na 
Si (mg/L) 1.4 2.1 0.7 6.30 3.22 78 81 67 na 
Ca (mg/L) 0.15 0.13 0.09 0.69 0.23 47 39 14 na 
K (mg/L) < 0.5 < 0.5 < 0.5 0.5 < 0.5 8 6 5 na 
Mg (mg/L) < 0.005 < 0.005 < 0.005 0.012 < 0.005 13 11 3.2 na 
Al (mg/L) < 0.2 < 0.2 < 0.2 < 0.04 < 0.04 < 0.2 < 0.2 < 0.2 na 
B (mg/L) 2.8 2.0 1.9 0.62 1.85 0.8 0.6 1.5 na 
S (mg/L) < 0.5 < 0.5 < 0.5 < 0.1 < 0.1 22 17 3.1 na 
Fe (mg/L) 0.31 < 0.01 < 0.01 < 0.01 < 0.01 0.41 0.32 1.2 na 
Li (mg/L) < 4 < 4 < 4 < 1 < 1 < 4 < 4 < 4 na 
Sr (mg/L) < 0.05 < 0.05 < 0.05 < 0.01 < 0.01 0.54 0.45 0.14 na 
Anions 
HCO3 (mg/L)e na 8.6 8.6 na na na na na 23.5 
F (mg/L) < 0.005 < 0.005 < 0.005 0.685 0.195 0.725 0.575 0.835 0.27 
Cl (mg/L) 0.09 0.20 0.06 0.615 0.305 88.3 71.0 24.1 9.5 
Br (mg/L) < 0.03 < 0.03 < 0.03 < 0.03 < 0.03 0.515 0.46 0.35 0.61 
SO4 (mg/L) 0.12 0.09 0.07 < 0.03 0.325 64.2 53.5 9.13 6.2 
PO4 (mg/L) < 0.02 0.69 0.33 < 0.02 < 0.02 < 0.02 < 0.02 < 0.02 < 0.02 
NO2 (mg/L) < 0.007 < 0.007 < 0.007 < 0.007 < 0.007 < 0.007 < 0.007 < 0.007 < 0.007 
NO3 (mg/L) < 0.02 < 0.02 < 0.02 na < 0.02 3.79 2.83 0.825 1.32 

Table 6.3.4.1-2. Chemical Analyses of DST Borehole Water Samples (Continued) 
SMF No. (SPC0) 0557032 0557033a 0557036a 0557038a 0557040a 0557080 0557081 0557083 0552575 0557043 
Collection Date 10/27/99 10/27/99 10/27/99 10/27/99 10/27/99 11/30/99 11/30/99 11/30/99 11/30/99 11/30/99 
Collection Time 
Sample ID BH 59-2 BH 59-2 BH 59-3 BH 59-3 BH 76-3 BH 59-2 BH 59-2 BH 59-2 BH 59-3 BH 59-3 
Field pHc 5.93 6.08 na 6.64 6.14-6.46 6.86 7.24 na 7.47 na 
Metals / Cations 
Na (mg/L) 9.2 9.2 na 19.3 64.5 6.6 7.7 na 15.6 na 
Si (mg/L) 44.5 44.9 na 84.2 133.4 38.0 39.9 na 92.5 na 
Ca (mg/L) 7.53 7.47 na 13.2 59.5 4.33 5.63 na 2.86 na 
K (mg/L) 3.4 3.6 na 5.6 13.4 2.6 3.0 na 3.9 na 
Mg (mg/L) 1.81 1.72 na 1.49 13.8 1.02 1.38 na 0.29 na 
Al (mg/L) 0.033 g 0.033 g na 0.040 0.010 0.030 0.030 na 0.071 na 
B (mg/L) 0.27 0.21 na 0.86 2.38 0.14 0.17 na 1.06 na 
S (mg/L) 2.52 2.50 na 14.48 34.55 0.76 1.33 na 3.25 na 
Fe (mg/L) 0.20 0.19 na < 0.02 < 0.02 0.09 0.14 na < 0.02 na 
Li (mg/L) 0.16 0.01 na 0.02 0.13 0.01 0.01 na 0.02 na 
Sr (mg/L) 0.11 0.08 na 0.13 0.78 0.06 0.08 na 0.03 na 
Anions 
HCO3 (mg/L)e na 23.5 12.4 12.4 na na na 22.3 na 20.7 
F (mg/L) na 0.27 0.64 0.73 1.11 na na 0.35 na 1.3 
Cl (mg/L) na 9.1 12.9 12.9 81.9 na na 5.0 na 8.8 
Br (mg/L) na 0.58 0.89 0.51 0.97 na na < 0.03 na < 0.03 
SO4 (mg/L) na 6.3 40.7 40.3 94.6 na na 2.8 na 8.2 
PO4 (mg/L) na < 0.02 < 0.04 < 0.04 < 0.02 na na < 0.02 na < 0.02 
NO2 (mg/L) na < 0.007 < 0.01 < 0.01 < 0.007 na na < 0.007 na < 0.007 
NO3 (mg/L) na 1.40 3.06 3.05 6.42 na na < 0.02 na 2.4 
SMF No. (SPC0) 0552578 0552579 0557081a 0557084a 0557022 0550671 0550673 0550698a 0550674a 0550674a 
Collection Date 11/30/99 11/30/99 11/30/99 11/30/99 01/25/00 01/25/00 01/25/00 01/25/00 01/25/00 01/25/00 
Collection Time 
Sample ID BH 76-3 BH 76-3 BH 77-3 BH 77-3 BH 59-2 BH 59-2 BH 59-2 BH 77-2 BH 77-3 BH 77-3 
Field pHc 6.94 na na 4.68 7.07 6.68 na 4.63 3.47 na 
Metals / Cations 
Na (mg/L) 28.2 na na 0.6 8.1 6.6 na < 0.3 < 0.3 na 
Si (mg/L) 92.8 na na 2.45 42.8 41.7 na 2.0 2.5 na 
Ca (mg/L) 22.3 na na 1.27 7.54 2.89 na 0.17 < 0.005 na 
K (mg/L) 7.4 na na < 0.2 3.6 2.8 na < 0.2 < 0.2 na 
Mg (mg/L) 4.71 na na 0.19 1.78 0.72 na 0.01 < 0.005 na 
Al (mg/L) 0.031 na na 0.334 < 0.05 0.043 na 0.049 0.023 na 
B (mg/L) 0.81 na na 0.09 0.29 0.21 na 0.05 0.04 na 
S (mg/L) 9.46 na na 0.24 6.44 0.65 na < 0.05 < 0.05 na 
Fe (mg/L) 0.10 na na 0.37 0.07 < 0.02 na 0.25 0.07 na 
Li (mg/L) 0.04 na na < 0.01 < 0.01 < 0.01 na < 0.01 < 0.01 na 
Sr (mg/L) 0.26 na na 0.02 0.091 0.036 na < 0.005 < 0.005 na 
Anions 
HCO3 (mg/L)e na 82.3 na na na na 22.8 na na na h 
F (mg/L) 
Cl (mg/L) 
Br (mg/L) 
SO4 (mg/L) 
PO4 (mg/L) 
NO2 (mg/L) 
na 1.3 15 na 
na 19 3.5 na 
na < 0.03 < 0.03 na 
na 26.0 1.6 na 
na < 0.02 < 0.02 na 
na < 0.007 < 0.007 na 
na na 0.73 6.7 19.9 20.8 hna na 3.8 0.6 0.8 0.29 hna na < 0.1 < 0.1 < 0.1 < 0.1 hna na 1.8 0.39 < 0.1 < 0.1 hna na 0.62 0.64 4.0 2.9 hna na < 0.05 < 0.05 < 0.05 < 0.06h 
NO3 (mg/L) na 2.5 < 0.02 na na na 0.77 < 0.1 0.20 0.18 h 

Table 6.3.4.1-2. Chemical Analyses of DST Borehole Water Samples (Continued) 
SMF No. (SPC0) 0550681 0550682 0550684 0550687 0550697 0550679 0550693 0550694 0550691 
Collection Date 05/23/00 05/23/00 05/23/00 05/23/00 05/23/00 05/23/00 06/29/00 06/29/00 06/29/00 
Collection Time 
Sample ID BH 59-2 BH 59-2 BH 59-2 BH 59-3 BH 76-3 BH 76-4 BH 59-2 BH 59-2 BH 59-2 
Field pHc 6.96 6.96 6.95 5.19 6.92-6.96 na 6.99-7.08 6.99-7.08 7.00 
Metals / Cations 
Na (mg/L) 17 18 17 < 2.4 29 < 2.4 16 15 < 4.8 
Si (mg/L) 59.4 59.2 59.3 < 0.46 96.0 3.4 62.7 57.5 36.3 
Ca (mg/L) 4.7 4.4 4.5 < 0.17 7.1 1.5 4.3 3.8 2.0 
K (mg/L) 4.3 4.4 4.4 < 0.095 6.5 0.70 4.7 4.2 2.5 
Mg (mg/L) 1.1 1.1 1.1 < 0.042 1.4 0.14 1.1 1.0 0.54 
Al (mg/L) < 0.053 < 0.053 < 0.053 < 0.053 < 0.053 < 0.053 < 0.053 < 0.053 < 0.11 
B (mg/L) na na na na na na na na na 
S (mg/L) na na na na na na na na na 
Fe (mg/L) < 0.038 < 0.038 < 0.038 < 0.038 < 0.038 < 0.038 < 0.038 < 0.038 < 0.076 
Li (mg/L) 0.021 0.022 0.021 < 0.0007 0.045 0.0037 0.019 0.018 0.010 
Sr (mg/L) < 0.013 < 0.013 < 0.013 < 0.013 < 0.013 < 0.013 < 0.013 < 0.013 < 0.026 
Anions 
HCO3 (mg/L)e 31.4 31.4 31.4 na na na na na na 
F (mg/L) 0.58 0.55 0.49 0.15 0.76 0.13 na na na 
Cl (mg/L) 10.15 10.6 10.15 0.07 14.5 2.75 na na na 
Br (mg/L) < 0.1 0.38 < 0.1 < 0.1 < 0.1 < 0.1 na na na 
SO4 (mg/L) 2.9 3.18 3.1 < 0.1 4.98 2.24 na na na 
PO4 (mg/L) < 0.2 < 0.2 < 0.2 < 0.2 < 0.2 < 0.2 na na na 
NO2 (mg/L) < 0.06 < 0.06 < 0.06 < 0.06 < 0.06 < 0.06 na na na 
NO3 (mg/L) 0.56 0.54 0.71 0.38 1.47 0.85 na na na 
SMF No. (SPC0) 0550689 0550690 0550685 0550686 0530300 0530302 0550678 0530303 0550688 
Collection Date 06/29/00 06/29/00 06/29/00 06/29/00 06/29/00 06/29/00 06/29/00 06/29/00 06/29/00 
Collection Time 
Sample ID BH 59-2 BH 59-2 BH 59-4 BH 59-3 BH 76-3 BH 76-3 BH 76-4 BH 76-4 BH 78-2 
Field pHc na na 4.60-4.74 5.60 5.75 5.75 4.74-4.77 na 4.12 
Metals / Cations 
Na (mg/L) na na < 2.4 < 2.4 na < 2.4 < 2.4 na < 2.4 
Si (mg/L) na na < 0.46 < 0.46 na 3.1 < 0.46 na < 0.46 
Ca (mg/L) na na < 0.17 < 0.17 na < 0.17 < 0.17 na 0.5 
K (mg/L) na na < 0.095 < 0.095 na < 0.095 < 0.095 na < 0.095 
Mg (mg/L) na na < 0.042 < 0.042 na 0.29 < 0.042 na < 0.042 
Al (mg/L) na na < 0.053 < 0.053 na 0.17 0.18 na < 0.053 
B (mg/L) na na na na na na na na na 
S (mg/L) na na na na na na na na na 
Fe (mg/L) na na < 0.038 < 0.038 na < 0.038 < 0.038 na < 0.038 
Li (mg/L) na na < 0.0007 < 0.0007 na < 0.0007 < 0.0007 na < 0.0007 
Sr (mg/L) na na < 0.013 < 0.013 na < 0.013 < 0.013 na < 0.013 
Anions 
HCO3 (mg/L)e 29.4 29.4 na na na na na na na 
F (mg/L) 0.18 0.15 na na < 0.007 na na < 0.007 0.11 
Cl (mg/L) 0.90 0.32 na na 0.67 na na 0.94 2.79 
Br (mg/L) 0.62 0.48 na na 0.47 na na 0.57 1.15 
SO4 (mg/L) 0.5 0.42 na na 1.54 na na < 0.1 < 0.1 
PO4 (mg/L) < 0.2 < 0.2 na na < 0.2 na na < 0.2 < 0.2 
NO2 (mg/L) < 0.06 < 0.06 na na < 0.06 na na < 0.06 < 0.06 
NO3 (mg/L) 0.65 0.48 na na 0.49 na na < 0.09 < 0.09 

Table 6.3.4.1-2. Chemical Analyses of DST Borehole Water Samples (Continued) 
SMF No. (SPC0) 0550642 0530398 0530316 0530318 0559467 0559463 0559466 0559464 0559458 
Collection Date 06/29/00 01/23/01 01/23/01 01/23/01 04/17/01 04/17/01 04/17/01 04/17/01 04/17/01 
Collection Time 
Sample ID BH 78-3 BH 59-2 BH 59-3 BH 60-4 BH 59-2 BH 59-3 BH 59-4 BH 76-2 BH 76-2 
Field pHc 4.22 na na na 4.87 5.96 5.20 7.68 8.22 
Metals / Cations 
Na (mg/L) < 2.4 29 < 2.4 < 2.4 < 2.4 6 < 2.4 9 9 
Si (mg/L) 2.3 84.5 < 0.46 46.1 5.2 < 0.46 < 0.46 42.6 44.1 
Ca (mg/L) 1.1 7.8 < 0.17 0.68 0.6 3.5 0.57 1.3 1.1 
K (mg/L) 0.2 5.8 < 0.053 < 0.095 0.33 0.35 < 0.095 1.6 1.6 
Mg (mg/L) 0.15 1.8 < 0.042 < 0.042 0.14 1.40 < 0.042 0.27 0.22 
Al (mg/L) 0.31 < 0.053 < 0.053 < 0.053 < 0.053 < 0.053 < 0.053 0.42 0.43 
B (mg/L) na na na na na na na na na 
S (mg/L) na na na na na na na na na 
Fe (mg/L) < 0.038 < 0.038 < 0.038 < 0.038 < 0.038 < 0.038 < 0.038 0.40 0.40 
Li (mg/L) < 0.0007 0.033 < 0.0007 < 0.0007 < 0.0007 < 0.0007 < 0.0007 0.0098 0.010 
Sr (mg/L) < 0.013 < 0.013 < 0.013 < 0.013 < 0.013 < 0.013 < 0.013 < 0.013 < 0.013 
Anions 
HCO3 (mg/L)e na na na na na na na na na 
F (mg/L) < 0.007 0.78 < 0.007 0.35 na na na na 0.38 
Cl (mg/L) 1.39 25.20 0.26 0.55 na na na na 1.9 
Br (mg/L) 0.79 < 0.1 < 0.1 < 0.1 na na na na < 0.1 
SO4 (mg/L) < 0.1 9.5 < 0.1 0.57 na na na na 0.89 
PO4 (mg/L) < 0.2 < 0.2 < 0.2 < 0.2 na na na na < 0.2 
NO2 (mg/L) < 0.06 < 0.06 < 0.06 0.59 na na na na < 0.06 
NO3 (mg/L) < 0.09 0.99 < 0.09 0.54 na na na na < 0.09 
SMF No. (SPC0) 0559456 0559481 0559477 0559455 0559455 0559484 0559484 0559490 0559491 
Collection Date 04/17/01 06/28/01 06/28/01 08/07/01 08/07/01 08/07/01 08/07/01 08/08/01 08/08/01 
Collection Time 
Sample ID BH 76-2 BH 60-3 BH 60-3 BH 77-2 BH 77-2 BH 77-3 BH 77-3 BH 60-2 BH 60-3 
Field pHc 8.29 3.3 3.30 3.3 3.3 3.3 3.3 3.1 3.4 
Metals / Cations 
Na (mg/L) 9 < 2.4 na < 2.4 na < 2.4 na < 2.4 < 2.4 
Si (mg/L) 45.6 4.9 na 10.7 na 17.4 na 22.7 5.3 
Ca (mg/L) 1.3 < 0.17 na < 0.17 na < 0.17 na < 0.17 0.7 
K (mg/L) 1.9 < 0.095 na < 0.095 na < 0.095 na < 0.095 0.35 
Mg (mg/L) 0.23 < 0.042 na < 0.042 na < 0.042 na < 0.042 < 0.042 
Al (mg/L) 0.45 0.67 na 1.0 na 2.2 na 2.5 0.8 
B (mg/L) na na na na na na na na na 
S (mg/L) na na na na na na na na na 
Fe (mg/L) 0.39 0.15 na 0.20 na 0.19 na 1.6 < 0.038 
Li (mg/L) 0.0076 < 0.0007 na < 0.0007 na < 0.0007 na < 0.0007 < 0.0007 
Sr (mg/L) < 0.013 < 0.013 na < 0.013 na < 0.013 na < 0.013 < 0.013 
Anions 
HCO3 (mg/L)e na na na < 5 < 5 < 5 < 5 < 5 < 5 
F (mg/L) 0.47 na 17.7 41.0 50.0 50 57.8 66 8.77 
Cl (mg/L) 1.71 na 0.90 < 0.05 0.77 < 0.05 1.12 0.76 0.82 
Br (mg/L) < 0.1 na < 0.1 < 0.1 < 0.2 < 0.1 < 0.1 < 0.1 < 0.1 
SO4 (mg/L) 0.85 na < 0.1 < 0.1 0.42 < 0.1 < 0.1 < 0.1 < 0.1 
PO4 (mg/L) < 0.2 na < 0.2 < 0.2 < 0.3 < 0.2 < 0.2 < 0.2 < 0.2 
NO2 (mg/L) < 0.06 na < 0.06 < 0.06 < 0.1 < 0.06 < 0.06 < 0.06 < 0.06 
NO3 (mg/L) < 0.09 na < 0.09 0.60 0.69 0.48 0.21 < 0.09 < 0.09 

Table 6.3.4.1-2. Chemical Analyses of DST Borehole Water Samples (Continued) 
SMF No. (SPC0) 0575227 0575225 0575221 0575224 0575222 0575226 0575223 1016082 1014156 1014155 
Collection Date 10/22/01 10/22/01 10/22/01 10/22/01 10/22/01 10/22/01 10/22/01 01/07/02 01/09/02 01/09/02 
Collection Time 
Sample ID BH 59-2 BH 60-2 BH 60-3 BH 60-4 BH 76-4 BH 77-2 BH 77-3 BH 76-2 BH 77-2 BH 77-3 
Field pHc 4.9 3.2 3.5 3.8 5.1 3.1 3.2 7.8 3.7 3.4 
Metals / Cations 
Na (mg/L) < 2.4 < 2.4 < 2.4 < 2.4 na < 2.4 < 2.4 na na na 
Si (mg/L) 1.7 10.3 10.9 22.9 na 3.6 2.60 na na na 
Ca (mg/L) 0.49 < 0.17 < 0.17 0.54 na 0.36 < 0.17 na na na 
K (mg/L) < 0.095 < 0.095 < 0.095 < 0.095 na 0.25 < 0.095 na na na 
Mg (mg/L) < 0.042 < 0.042 < 0.042 < 0.042 na < 0.042 < 0.042 na na na 
Al (mg/L) < 0.053 0.41 0.22 < 0.053 na 0.3 0.25 na na na 
B (mg/L) na na na na na na na na na na 
S (mg/L) na na na na na na na na na na 
Fe (mg/L) < 0.038 0.34 < 0.038 0.047 na 0.18 0.16 na na na 
Li (mg/L) <0.0007 <0.0007 <0.0007 <0.0007 na <0.0007 <0.0007 na na na 
Sr (mg/L) < 0.013 < 0.013 < 0.013 < 0.013 na < 0.01 < 0.013 na na na 
Anions 
HCO3 (mg/L)e < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 
F (mg/L) 0.27 74 na na <0.007 51 62 0.4 4.85 19 
Cl (mg/L) < 0.05 2.29 na na 0.41 0.75 0.7 2.75 0.63 0.89 
Br (mg/L) < 0.1 < 0.1 na na < 0.1 < 0.1 < 0.1 < 0.2 < 0.2 < 0.2 
SO4 (mg/L) 0.16 0.08 na na 0.4 < 0.1 < 0.1 1.02 0.5 0.40 
PO4 (mg/L) < 0.2 < 0.2 na na < 0.2 < 0.2 < 0.2 < 0.3 < 0.3 < 0.3 
NO2 (mg/L) < 0.06 < 0.06 na na < 0.06 < 0.06 < 0.06 < 0.2 < 0.2 < 0.2 
NO3 (mg/L) < 0.09 < 0.09 na na 0.06 < 0.09 0.50 < 0.2 < 0.2 0.30 
DTN: LL020709923142.023 (unqualified) [DIRS 161677] 
a 
b 
Analytical results are corroborating data (as defined in Section 3.6 of AP-SIII.3Q) and unqualified. 
Pore water samples (baseline): sample ultracentrifuged from borehole core. 
d 
See entry in Table 6.3.4.1-1 for temperature of pH measurements. 
Low detection limit analysis  sample filtered to 0.10 mm and acidified. 
e 
HCO3  field measurement. 
f 
Sample filtered in the field and laboratory (LLNL) prior to analyses. 
g Sample ID SPC0057028 submitted for low detection for AI analysis. 
h 
Anion sample analyzed two different times. 
NOTE: na = not available; < = not detected (less than practical reporting limit); field chemistry of 
samples for high fluoride study (11/8/01 to 12/5/01) are reported in Table 6.3.4.5-1. 

Table 6.3.4.2-1. Concentration and Isotopic Compositions of CO2 in Gas Samples Collected during the 
DST Heating Phase 
Sample Intervala 
(BH-Zone) 
YMP Tracking 
Number 
Date 
Sampled 
2CO2 
(v/v- percent)b d13C ()c d18O ()d 
14C (fraction 
modern 
carbon) 
57-3 SPC 0052 7911 2/10/98 0.102 -13.8 31.2 
59-3 SPC 0052 7900 2/09/98 0.084 -10.3 31.9 
60-3e SPC 0052 7906 2/09/98 0.100 -8.0 22.9 
61-3 SPC 0052 7914 2/10/98 0.112 -11.6 30.2 
74-4 SPC 0052 7903 2/09/98 0.062 -11.2 32.9 
77-3 SPC 0052 7901 2/09/98 0.644 -5.5 48.3 
77-3e SPC 0052 7902 2/10/98 -7.4 24.1 
78-3 SPC 0052 7913 2/10/98 0.244 -11.3 30.7 0.400 
Heated Drift SPC 0052 7909 2/10/98 0.040 -10.3 32.3 
Observation Drift SPC 0052 7907 2/10/98 0.043 -10.3 40.0 
57-3 SPC 0052 7978 6/04/98 0.170 -16.6 29.5 
58-3 SPC 0052 7979 6/04/98 0.189 -12.0 29.1 
59-3 SPC 0052 7980 6/04/98 0.222 -9.7 26.6 
59-4 SPC 0052 7988 6/04/98 0.538 -8.9 25.8 
74-3 SPC 0052 7981 6/04/98 0.143 -13.6 30.1 
75-3 SPC 0052 7982 6/04/98 0.189 -11.8 29.0 0.416 
76-3 SPC 0052 7983 6/04/98 0.687 -5.5 25.2 0.214 
77-3 SPC 0052 7984 6/04/98 0.621 -5.5 21.1 
78-3 SPC 0052 7986 6/04/98 1.494 -8.7 23.4 0.210 
185-3 SPC 0052 7987 6/04/98 0.160 -14.7 22.0 
Observation Drift SPC 0052 7989 6/04/98 0.046 -10.6 36.4 
57-3 SPC 0052 7278 8/06/98 0.152 -15.4 29.5 
58-3 SPC 0052 7279 8/06/98 0.234 -9.3 28.3 
59-3 SPC 0052 7281 8/06/98 0.342 -7.7 25.4 
60-3 SPC 0052 7283 8/06/98 14.160 -0.5 24.2 
61-3 SPC 0052 7285 8/06/98 2.986 -3.7 23.9 
74-3 SPC 0052 7267 8/05/98 0.133 -12.1 29.9 
75-3 SPC 0052 7268 8/05/98 0.222 -10.4 29.4 
76-3 SPC 0052 7269 8/05/98 0.949 -3.5 24.5 
77-3 SPC 0052 7271 8/05/98 3.330 -4.3 24.0 
78-3 SPC 0052 7273 8/05/98 2.474 -6.3 23.4 0.156 
185-3 SPC 0052 7275 8/06/98 0.186 -12.7 28.8 
186-2 SPC 0052 7277 8/06/98 1.497 -8.4 25.8 
182 (56) SPC 0052 7276 8/06/98 0.092 -13.1 32.4 
182 (64) SPC 0052 7266 8/05/98 0.054 -11.9 33.0 
Observation Drift SPC 0052 7287 8/06/98 0.038 -9.8 38.0 
57-3 SPC 0052 7288 10/07/98 0.189 -16.0 29.2 0.492 
58-3 SPC 0052 7289 10/07/98 0.414 -7.5 28.0 
59-3 SPC 0052 7290 10/07/98 0.633 -5.1 22.7 0.200 
61-3 SPC 0052 7293 10/07/98 5.335 -2.1 22.6 0.125 
74-3 SPC 0052 7295 10/07/98 
75-3 SPC 0052 7994 10/07/98 0.374 -10.3 27.6 0.322 
76-3 SPC 0052 7296 10/07/98 1.611 -3.1 21.3 0.140 
77-3 SPC 0052 7990 10/08/98 0.216 -5.1 25.1 
78-3 SPC 0052 7992 10/08/98 2.702 -3.9 22.1 0.105 
185-3 SPC 0052 7995 10/08/98 0.264 -10.5 0.369 
186-2 SPC 0052 7996 10/08/98 2.239 -7.5 24.0 

Table 6.3.4.2-1. Concentration and Isotopic Compositions of CO2 in Gas Samples Collected during the 
DST Heating Phase (Continued) 
Sample Intervala 
(BH-Zone) 
YMP Tracking 
Number 
Date 
Sampled 
2CO2 
(v/v- percent)b d13C ()c d18O ()d 
14C (fraction 
modern 
carbon) 
Observation Drift SPC 0052 7998 10/08/98 0.046 -10.8 37.6 
Heated Drift SPC 0052 7999 10/08/98 0.044 -9.5 30.0 
57-1 SPC 0054 1258 12/16/98 0.068 -9.8 31.2 
57-2 SPC 0054 1259 12/16/98 0.191 -7.9 29.3 
57-3 SPC 0054 1260 12/16/98 0.220 -16.5 28.7 
57-4 SPC 0054 1261 12/16/98 0.130 -12.8 29.5 
58-3 SPC 0054 1262 12/16/98 0.392 -6.1 28.0 
59-1 SPC 0054 1263 12/16/98 0.087 -7.9 28.0 
59-3 SPC 0054 1264 12/16/98 0.501 -4.1 22.4 
59-4 SPC 0054 1267 12/16/98 1.562 -4.2 24.1 
60-2 SPC 0054 1269 12/16/98 0.099 -5.5 23.7 
61-1 SPC 0054 1271 12/16/98 0.051 -3.9 32.0 
61-2 SPC 0054 1272 12/16/98 0.083 -4.4 24.8 
61-4 SPC 0054 1274 12/16/98 0.331 
74-1 SPC 0054 1236 12/14/98 0.047 -10.0 29.8 
74-2 SPC 0054 1235 12/14/98 0.084 
74-3 SPC 0054 1234 12/14/98 0.220 -12.3 29.8 
74-4 SPC 0054 1233 12/14/98 
75-3 SPC 0054 1232 12/14/98 0.495 -9.3 27.8 
76-1 SPC 0054 1231 12/14/98 0.058 -9.6 30.6 
76-2 SPC 0054 1237 12/15/98 0.308 -5.2 24.5 
76-3 SPC 0054 1239 12/15/98 1.430 -2.7 20.9 
76-4 SPC 0054 1241 12/15/98 2.164 -3.5 23.6 
77-3 SPC 0054 1243 12/15/98 0.115 
78-1 SPC 0054 1245 12/15/98 0.100 -11.4 29.1 
78-2 SPC 0054 1246 12/15/98 2.188 -3.8 24.6 
78-3 SPC 0054 1248 12/15/98 2.370 -1.5 23.2 0.081 
78-4 SPC 0054 1250 12/15/98 0.358 -11.7 28.1 
185-1 SPC 0054 1252 12/15/98 0.159 -13.2 29.5 
185-2 SPC 0054 1253 12/15/98 1.387 -10.7 28.6 
185-3 SPC 0054 1254 12/15/98 0.293 -10.3 27.9 
185-4 SPC 0054 1255 12/15/98 0.136 -12.4 28.8 
186-2 SPC 0054 1256 12/15/98 2.043 -6.6 23.5 
Observation Drift SPC 0054 1266 12/16/98 0.038 -9.3 39.2 
Heated Drift SPC 0054 1276 12/16/98 0.040 -9.7 26.5 0.988 
57-3 SPC 0055 0611 3/02/99 0.277 -16.5 26.4 
58-3 SPC 0055 0612 3/02/99 0.552 -5.7 25.8 
59-3 SPC 0055 0613 3/02/99 0.746 -3.3 20.1 
60-2 SPC 0055 0616 3/02/99 0.087 -5.9 22.5 
61-2 SPC 0055 0618 3/02/99 0.097 -3.5 21.5 
74-1 SPC 0054 1278 3/01/99 0.046 
74-2 SPC 0054 1279 3/01/99 0.110 -10.9 27.9 
74-3 SPC 0054 1280 3/01/99 0.437 -11.2 27.1 
74-4 SPC 0054 1281 3/01/99 0.302 -11.0 27.6 
75-3 SPC 0054 1282 3/01/99 1.051 -7.9 25.5 
76-1 SPC 0054 1283 3/01/99 0.055 -7.9 33.8 
76-2 SPC 0054 1285 3/01/99 0.324 -4.6 22.7 

Table 6.3.4.2-1. Concentration and Isotopic Compositions of CO2 in Gas Samples Collected during the 
DST Heating Phase (Continued) 
Sample Intervala 
(BH-Zone) 
YMP Tracking 
Number 
Date 
Sampled 
2CO2 
(v/v- percent)b d13C ()c d18O ()d 
14C (fraction 
modern 
carbon) 
76-3 SPC 0054 1287 3/01/99 1.860 -3.0 19.9 
76-4 SPC 0055 0600 3/01/99 4.987 -3.0 20.1 
77-3 SPC 0055 0603 3/02/99 0.119 -6.3 20.5 
78-1 SPC 0054 1284 3/02/99 0.090 -9.0 28.4 
78-3 SPC 0055 0605 3/02/99 4.409 -1.8 18.8 
185-2 SPC 0055 0607 3/02/99 2.020 -9.5 26.1 0.197 
185-3 SPC 0055 0608 3/02/99 0.331 -9.8 25.7 0.314 
186-2 SPC 0055 0609 3/02/99 2.455 -5.8 20.1 
Observation Drift SPC 0055 0602 3/01/99 0.039 -7.8 33.9 
57-3 SPC 0055 1123 5/25/99 0.333 -15.0 30.7 0.467 
58-3 SPC 0055 1121 5/25/99 0.681 -3.5 30.2 
59-3 SPC 0055 1119 5/25/99 1.101 -1.0 23.5 
60-2 SPC 0055 1115 5/25/99 0.074 -6.9 26.4 
60-3 SPC 0055 1113 5/25/99 0.072 -9.3 31.5 
61-2 SPC 0055 1117 5/25/99 0.073 -4.7 27.3 
74-1 SPC 0055 1124 5/25/99 0.047 
74-2 SPC 0055 1125 5/25/99 0.129 -10.2 29.1 
74-3 SPC 0055 1126 5/25/99 0.639 -9.9 28.7 0.277 
74-4 SPC 0055 1127 5/25/99 0.406 -9.6 29.5 
75-3 SPC 0055 1128 5/25/99 1.374 -6.3 27.9 0.178 
76-1 SPC 0055 1130 5/26/99 0.058 
76-2 SPC 0055 1131 5/26/99 0.535 -2.2 24.8 
76-3 SPC 0055 1133 5/26/99 3.112 -2.0 20.0 0.139 
76-4 SPC 0055 1135 5/26/99 13.077 -1.3 22.7 
77-3 SPC 0055 1137 5/26/99 0.187 -0.2 28.9 
78-3 SPC 0055 1139 5/26/99 0.288 -0.1 23.1 0.243 
185-2 SPC 0055 1142 5/26/99 2.311 -3.5 36.9 
186-3 SPC 0055 1143 5/26/99 0.426 -8.6 27.1 
186-2 SPC 0055 1141 5/26/99 0.041 -9.5 37.5 
Observation Drift SPC 0055 1144 5/26/99 0.042 
57-2 SPC 0055 1145 8/09/99 0.362 -4.7 26.7 
57-3 SPC 0055 1146 8/09/99 0.330 -15.1 27.7 
57-4 SPC 0055 1147 8/09/99 0.173 -6.4 35.2 
58-3 SPC 0055 1148 8/09/99 1.209 -4.3 25.5 
59-2 SPC 0055 1161 8/09/99 1.016 -0.3 19.6 
59-3 SPC 0055 1163 8/09/99 1.273 -1.0 18.6 0.120 
59-4 SPC 0055 1165 8/09/99 6.573 -2.5 22.4 
60-3 SPC 0055 1167 8/10/99 0.332 -5.5 22.5 
74-2 SPC 0055 1170 8/10/99 0.158 -10.2 27.6 
74-3 SPC 0055 1171 8/10/99 0649 -10.1 27.3 
74-4 SPC 0055 1172 8/10/99 0.328 -9.0 30.3 
75-3 SPC 0055 1173 8/10/99 1.315 -7.1 25.1 
76-3 SPC 0055 1175 8/10/99 2.658 -2.1 21.5 
77-3 SPC 0055 1177 8/10/99 0.152 
78-3 SPC 0055 1179 8/10/99 0.123 -2.5 20.6 
185-2 SPC 0055 1182 8/10/99 3.214 -7.4 26.3 
185-3 SPC 0055 1183 8/10/99 0.496 -6.2 29.7 

Table 6.3.4.2-1. Concentration and Isotopic Compositions of CO2 in Gas Samples Collected during the 
DST Heating Phase (Continued) 
Sample Intervala 
(BH-Zone) 
YMP Tracking 
Number 
Date 
Sampled 
2CO2 
(v/v- percent)b d13C ()c d18O ()d 
14C (fraction 
modern 
carbon) 
186-3 SPC 0055 1184 8/10/99 0.613 -8.2 23.5 
Observation Drift SPC 0055 1181 8/10/99 0.038 -8.2 38.3 
57-3 SPC 0055 1186 11/29/99 0.431 -11.5 31.4 0.427 
57-4 SPC 0055 1187 11/29/99 0.275 -7.3 32.1 
58-3 SPC 0055 1188 11/29/99 1.210 -3.0 26.3 
59-4 SPC 0055 1191 11/29/99 9.016 -1.6 14.8 
61-4 SPC 0055 1194 11/29/99 3.551 -3.8 19.9 
74-3 SPC 0055 1197 11/29/99 1.330 -8.6 26.0 
74-4 SPC 0055 1198 11/29/99 0.698 -8.7 26.4 
75-3 SPC 0055 1199 11/29/99 2.779 -5.5 23.1 0.129 
76-3 SPC 0055 7071 11/30/99 0.594 -3.0 19.6 0.182 
76-4 SPC 0055 7058 11/30/99 6.861 -0.1 14.7 
77-3 SPC 0055 7060 11/30/99 0.220 -4.3 22.6 
78-3 SPC 0055 7062 11/30/99 0.619 -0.3 24.1 
78-4 SPC 0055 7064 11/30/99 1.059 -4.6 25.7 
185-2 SPC 0055 7067 11/30/99 5.208 -6.3 25.7 0.133 
185-3 SPC 0055 7068 11/30/99 0.895 -6.8 24.4 0.190 
186-3 SPC 0055 7069 11/30/99 1.796 -7.4 22.6 0.206 
Heated Drift SPC 0055 1196 11/30/99 0.043 -9.9 20.1 
Observation Drift SPC 0055 7066 11/30/99 0.040 -8.8 37.5 
57-3 SPC 0055 9314 4/19/00 0.383 -8.8 29.2 
58-3 SPC 0055 9315 4/19/00 1.672 -4.1 22.0 
59-3 SPC 0055 9317 4/19/00 0.210 -2.5 24.0 
60-4 SPC 0055 9319 4/19/00 0.132 -9.7 37.0 
61-3 SPC 0055 9321 4/19/00 0.075 
61-4 SPC 0055 9323 4/19/00 6.308 -3.3 21.8 
74-3 SPC 0055 9304 4/18/00 1.291 -8.1 23.3 
74-4 SPC 0055 9305 4/18/00 0.724 -7.3 25.7 
75-3 SPC 0055 9306 4/18/00 2.430 -3.6 21.8 
77-3 SPC 0055 9308 4/18/00 0.156 -6.7 21.0 
78-3 SPC 0055 9310 4/18/00 0.353 -0.5 21.6 0.185 
78-4 SPC 0055 9312 4/18/00 1.657 -4.5 22.5 
185-2 SPC 0055 9300 4/18/00 3.877 -5.8 23.7 
185-3 SPC 0055 9301 4/18/00 0.823 -5.6 22.7 
186-3 SPC 0055 9302 4/18/00 1.418 -3.1 35.2 
Heated Drift SPC 0055 9326 4/19/00 0.042 -10.7 13.7 
Observation Drift SPC 0055 9325 4/19/00 0.042 
57-3/4 SPC 0055 9328 8/21/00 0.605 -8.4 15.3 0.201 
58-3 SPC 0055 9329 8/21/00 3.262 -3.0 12.1 
59-3 SPC 0055 9331 8/21/00 0.108 -4.0 17.4 
60-2/3/4 SPC 0055 9333 8/21/00 0.077 -8.3 18.7 
61-3/4 SPC 0055 9335 8/21/00 0.056 -8.0 16.6 
74-3 SPC 0055 9337 8/22/00 1.179 -7.1 13.4 0.154 
74-4 SPC 0055 9338 8/22/00 0.978 -5.8 14.7 
75-3 SPC 0055 9339 8/22/00 1.573 -2.2 10.7 
76-3 SPC 0055 9341 8/22/00 0.082 -5.2 16.4 

Table 6.3.4.2-1. Concentration and Isotopic Compositions of CO2 in Gas Samples Collected during the 
DST Heating Phase (Continued) 
Sample Intervala 
(BH-Zone) 
YMP Tracking 
Number 
Date 
Sampled 
2CO2 
(v/v- percent)b d13C ()c d18O ()d 
14C (fraction 
modern 
carbon) 
77-2/3 SPC 0055 9343 8/22/00 0.095 -7.0 13.7 
78-2/3 SPC 0055 9346 8/22/00 0.355 -2.4 10.9 
185-2 SPC 0055 9348 8/22/00 5.115 -5.2 14.1 
185-3 SPC 0055 9350 8/22/00 1.405 -4.5 13.0 
186-3 SPC 0055 9352 8/22/00 4.408 -3.0 11.0 
Heated Drift SPC 0055 9354 8/22/00 0.046 
Observation Drift SPC 0055 9345 8/22/00 0.040 -9.7 27.2 
57-3/4 SPC 0055 9395 1/22/01 0.67 -7.6 25.8 0.170 
58-3 SPC 0055 9397 1/22/01 2.84 -3.4 20.5 
59-3 SPC 0055 9399 1/22/01 0.11 -5.0 27.4 
60-3/2/4 SPC 0055 9401 1/22/01 0.11 -10.4 24.0 
61-3/2 SPC 0055 9403 1/22/01 0.54 -7.2 26.4 
74-3 SPC 0055 9406 1/23/01 1.14 -6.3 23.4 0.144 
75-3 SPC 0055 9408 1/23/01 1.65 2.7 32.9 0.166 
76-3/2 SPC 0055 9410 1/23/01 0.19 -1.6 0.296 
77-3/2 SPC 0055 9412 1/23/01 0.09 -7.9 22.2 
78-3/2/4 SPC 0055 9414 1/23/01 0.68 1.3 35.3 
185-2 SPC 0055 9416 1/23/01 6.68 -4.8 24.6 
185-3 SPC 0055 9418 1/23/01 1.94 -4.3 23.2 
186-3 SPC 0055 9420 1/23/01 7.76 -3.1 20.8 
Observation Drift 
1 
SPC 0055 9394 1/22/01 0.04 -10.4 37.6 
Observation Drift 
2 
SPC 0055 9422 1/23/01 0.04 -9.8 37.7 
57-3/4 SPC 0055 9357 4/17/01 0.784 -6.5 26.1 
58-3 SPC 0055 9359 4/17/01 3.467 -3.7 19.9 
59-3 SPC 0055 9361 4/17/01 0.108 -3.2 27.8 
60-3/2/4/1 SPC 0055 9363 4/17/01 0.080 -10.7 26.3 
61-3/2/4 SPC 0055 9365 4/17/01 0.068 -6.8 24.7 
74-3 SPC 0055 9367 4/18/01 1.139 -5.6 22.8 
75-3 SPC 0055 9369 4/18/01 0.941 -0.1 24.8 
76-3/2 SPC 0055 9371 4/18/01 0.178 -2.7 20.9 
77-3/2 SPC 0055 9373 4/18/01 0.102 -8.2 23.1 
78-3/2/4/1 SPC 0055 9375 4/18/01 0.795 -4.9 20.9 0.187 
185-2 SPC 0055 9378 4/18/01 7.855 -3.8 25.9 
185-3 SPC 0055 9380 4/18/01 2.284 -4.6 21.6 
186-3 SPC 0055 9382 4/18/01 6.413 -2.8 18.7 
Heated Drift SPC 0055 9384 4/18/01 0.046 
Observation Drift SPC 0055 9377 4/18/01 0.038 -9.1 38.1 

Table 6.3.4.2-1. Concentration and Isotopic Compositions of CO2 in Gas Samples Collected during the 
DST Heating Phase (Continued) 
Sample Intervala 
(BH-Zone) 
YMP Tracking 
Number 
Date 
Sampled 
2CO2 
(v/v- percent)b d13C ()c d18O ()d 
14C (fraction 
modern 
carbon) 
57-3/4 SPC 0055 9385 8/07/01 1.011 0.240 
58-3 SPC 0055 9387 8/07/01 6.342 -3.1 20.0 
59-3/4 SPC 0055 9389 8/08/01 0.178 
60-3/2/4/1 SPC 0055 9391 8/07/01 0.096 -10.3 27.6 
61-3/2/4 SPC 0055 9393 8/07/01 0.557 -5.8 25.6 
74-3 SPC 0055 9431 8/08/01 0.643 -1.1 35.1 0.326 
75-3 SPC 0055 9433 8/08/01 0.821 -3.1 23.7 0.233 
76-3/2 SPC 0055 9435 8/08/01 0.130 -4.5 21.4 0.456 
77-3 SPC 0055 9437 8/08/01 0.090 -4.1 31.9 
78-3/2/4 SPC 0055 9439 8/08/01 1.966 1.2 29.3 0.192 
185-2 SPC 0055 9424 8/07/01 11.522 -4.1 23.1 0.080 
185-3 SPC 0055 9426 8/07/01 4.427 -4.7 21.9 0.080 
186-3 SPC 0055 9428 8/07/01 8.039 -1.2 21.7 
Heated Drift SPC 0055 9356 8/07/01 0.039 -10.0 17.7 0.982 
Observation Drift SPC 0055 9430 8/07/01 0.034 -8.9 38.8 
57-3/4 SPC 0101 6517 11/27/01 0.88 -7.0 22.8 
58-3 SPC 0101 6519 11/27/01 2.50 
59-3/4 SPC 0101 6522 11/28/01 0.08 -3.4 33.2 
61-3/2/4 SPC 0101 6524 11/28/01 0.27 -3.6 24.0 
74-3 SPC 0101 6501 11/27/01 0.64 
75-3 SPC 0101 6504 11/27/01 0.85 
76-1 SPC 0101 6511 11/27/01 0.37 -4.9 24.1 
76-3/2 SPC 0101 6509 11/27/01 0.92 -0.1 18.9 
76-4 SPC 0101 6507 11/27/01 0.07 -6.5 32.3 
77-3 SPC 0101 6513 11/27/01 0.06 
78-3/2/4 SPC 0101 6515 11/27/01 0.71 -8.5 35.5 
185-1 SPC 0055 9448 11/26/01 0.69 -4.4 26.4 
185-2 SPC 0055 9445 11/26/01 4.83 -4.5 23.5 
185-3 SPC 0055 9443 11/26/01 2.90 
185-4 SPC 0055 9450 11/26/01 1.49 -6.6 24.0 
186-3 SPC 0101 6526 11/28/01 7.70 
Heated Drift SPC 0101 6528 11/26/01 0.06 -9.8 36.4 
Observation Drift SPC 0055 9452 11/26/01 0.07 -6.9 33.4 

Table 6.3.4.2-1. Concentration and Isotopic Compositions of CO2 in Gas Samples Collected during the 
DST Heating Phase (Continued) 
Sample Intervala 
(BH-Zone) 
YMP Tracking 
Number 
Date 
Sampled 
2CO2 
(v/v- percent)b d13C ()c d18O ()d 
14C (fraction 
modern 
carbon) 
57-3/4 SPC 0101 6546 1/08/02 0.90 -5.5 26.6 
59-3/4 SPC 0101 6400 1/08/02 0.15 
61-3/2/4 SPC 0101 6402 1/08/02 0.63 3.1 43.8 
74-3 SPC 0101 6538 1/07/02 1.08 -4.6 24.2 
75-3 SPC 0101 6540 1/07/02 6.65 -1.5 19.4 
76-3/2 SPC 0101 6542 1/07/02 0.77 -0.7 17.9 
78-3/2/4 SPC 0101 6544 1/07/02 0.79 -4.8 19.7 
185-2 SPC 0101 6532 1/07/02 7.50 -4.5 23.5 
185-3 SPC 0101 6534 1/07/02 3.43 -4.4 22.5 
186-3 SPC 0101 6536 1/07/02 3.45 
Heated Drift SPC 0101 6531 1/07/02 0.05 -9.2 25.9 
Observation Drift SPC 0101 6530 1/07/02 0.06 -10.1 37.3 
DTNs: LB980420123142.005 [DIRS 111471], LB980715123142.003 [DIRS 111472], LB0404ISODSTHP.003 
[DIRS 169254], LB990630123142.003 [DIRS 111476], LB000121123142.003 [DIRS 146451], 
LB000718123142.003 [DIRS 158342], LB0011CO2DST08.001[DIRS 153460, LB0102CO2DST98.001 
[DIRS 159306], LB0108CO2DST05.001 [DIRS 156888], LB0203CO2DSTEH.001 [DIRS 158349], 
LB0206C14DSTEH.001 [DIRS 159303]. 
a 
Sample interval indicates the DST borehole followed by the interval within the borehole from which the sample 
was collected. Where more than one interval is noted, that means the sample was taken from the first interval 
given, but the packers between that interval and the others listed were deflated (e.g., 57-3/4 indicates the sample 
was taken from DST Borehole 57, interval 3, but the packer between intervals 3 and 4 was deflated). Heater drift 
samples were taken from heater drift gas sampling port #2 (by the bulkhead) and AO drift samples were air 
bsamples taken from the access observation. 
CO2 concentrat
ions reported for samples collected during February of 1997 through August of 2000 and from April 
of 2001 through August of 2001 were measured using the Li-Cor in the Amundson laboratory on the UC Berkeley 
campus. Data reported for samples collected during January of 2001 and November of 2001 through January of 
2002 were measured on the Columbus Instruments Gas Analyzer at the ESF. 
c 
Stable carbon isotope ratios are given as part per thousand or per mil () variations in the ratio of 13C to 12C 
relative to carbon isotope ratio of VPDB (Vienna Pee Dee Belemnite), an internationally accepted standard for 
d 
reporting carbon isotope data.
Stable oxygen isotope ratios are given as part per thousand or per mil () variations in the ratio of 18O to 16O 
relative to oxygen isotope ratio of VSMOW (Vienna Standard Mean Ocean Water), an internationally accepted 
standard for reporting oxygen isotope data. 
e 
Samples collected in 150-cc metal canisters (as opposed to Tedlar bags). 

Table 6.3.4.2-2. Hydrogen (dD) and Oxygen (d18O) Isotope Compositions of Steam Condensed from 
Gas Samples Collected During the DST Heating Phase 
Sample Intervala YMP Tracking # Date Sampled 
Isotope Composition 
Hydrogen 
dD () 
Oxygen 
d18O ()b 
77-3 SPC 0052 7985 6/04/98 -95 -13.2 
58-3 SPC 0052 7280 8/06/98 -128 -18.1 
59-3 SPC 0052 7282 8/06/98 -132 -18.6 
60-3 SPC 0052 7284 8/06/98 -110 -16.1 
61-3 SPC 0052 7286 8/06/98 -152 -21.0 
76-3 SPC 0052 7270 8/05/98 -122 -17.5 
77-3 SPC 0052 7272 8/05/98 -103 -14.1 
78-3 SPC 0052 7274 8/05/98 -127 -18.6 
59-3 SPC 0052 7291 10/07/98 -126 -18.3 
76-3 SPC 0052 7299 10/07/98 -126 -18.1 
77-3 SPC 0052 7991 10/08/98 -86 -10.6 
78-3 SPC 0052 7993 10/08/98  -18.1 
186-2 SPC 0052 7997 10/08/98 -126 -17.9 
59-3 SPC 0054 1265 12/16/98 -122 -18.0 
59-4 SPC 0054 1268 12/16/98 -119 -16.9 
60-2 SPC 0054 1270 12/16/98 -90 -12.2 
61-2 SPC 0054 1273 12/16/98 -106 -16.1 
61-4 SPC 0054 1275 12/16/98 -119 -16.9 
76-2 SPC 0054 1238 12/15/98 -131 -17.6 
76-3 SPC 0054 1240 12/15/98 -127 -18.5 
76-4 SPC 0054 1242 12/15/98 -110 -16.6 
77-3 SPC 0054 1244 12/15/98 -83 -10.1 
78-2 SPC 0054 1247 12/15/98 -110 -16.8 
78-3 SPC 0054 1249 12/15/98 -132 -18.5 
78-4 SPC 0054 1251 12/15/98 -116 -17.2 
186-2 SPC 0054 1257 12/15/98 -140 -20.3 
Heated Drift 2 SPC 0054 1277 12/16/98 -64 -7.5 
59-3 SPC 0055 0614 3/02/99 -118 -17.2 
60-2 SPC 0055 0617 3/02/99 -87 -10.9 
60-3 SPC 0055 0615 3/02/99 -101 -13.8 
61-2 SPC 0055 0619 3/02/99 -95 -14.4 
76-2 SPC 0054 1286 3/01/99 -138 -19.0 
76-3 SPC 0054 1288 3/01/99 -126 -18.2 
76-4 SPC 0055 0601 3/01/99 -110 -16.1 
77-3 SPC 0055 0604 3/02/99 -82 -8.2 
78-3 SPC 0055 0606 3/02/99 -122 -17.7 
186-2 SPC 0055 0610 3/02/99 -130 -19.4 
60-2 SPC 0055 1116 5/25/99 -85 -11.2 
60-3 SPC 0055 1114 5/25/99 -86 -19.4 
61-2 SPC 0055 1118 5/25/99 -91 -11.1 
59-3 SPC 0055 1120 5/25/99 -104 -11.0 
58-3 SPC 0055 1122 5/25/99 -124 -12.2 

Table 6.3.4.2-2. Hydrogen (dD) and Oxygen (d18O) Isotope Compositions of Steam Condensed from 
Gas Samples Collected During the DST Heating Phase (Continued) 
Sample Intervala YMP Tracking # Date Sampled 
Isotope Composition 
Hydrogen 
dD () 
2 Oxygen 
d18O ()b 
75-3 SPC 0055 1129 5/25/99 -128 -17.4 
76-2 SPC 0055 1132 5/26/99 -140 -17.1 
76-3 SPC 0055 1134 5/26/99 -120 -12.5 
76-4 SPC 0055 1136 5/26/99 -110 -11.0 
77-3 SPC 0055 1138 5/26/99 -83 -12.8 
78-3 SPC 0055 1140 5/26/99 -117 -18.4 
58-3 SPC 0055 1149 8/09/99 -126 -17.6 
59-2 SPC 0055 1162 8/09/99 -112 -17.1 
59-3 SPC 0055 1164 8/09/99 -109 -15.9 
59-4 SPC 0055 1166 8/09/99 -107 -16.1 
60-3 SPC 0055 1168 8/10/99 -86 -12.1 
75-3 SPC 0055 1174 8/10/99 -119 -16.8 
76-3 SPC 0055 1176 8/10/99 -122 -17.7 
77-3 SPC 0055 1178 8/10/99 -89 -11.2 
78-3 SPC 0055 1180 8/10/99 -114 -17.1 
186-3 SPC 0055 1185 8/10/99 -94 -13.8 
58-3 SPC 0055 1189 11/29/99 -122 -17.4 
59-3 SPC 0055 1190 11/29/99 -103 -14.3 
59-4 SPC 0055 1192 11/29/99 -125 -18.9 
61-3 SPC 0055 1193 11/29/99 -101 -14.2 
61-4 SPC 0055 1195 11/29/99 -113 -16.3 
75-3 SPC 0055 7056 11/29/99 -121 -17.5 
76-3 SPC 0055 7072 11/30/99 -107 -16.3 
76-4 SPC 0055 7059 11/30/99  -12.6 
77-3 SPC 0055 7061 11/30/99 -81 -9.9 
78-3 SPC 0055 7063 11/30/99 -104 -13.7 
78-4 SPC 0055 7065 11/30/99 -107 -15.8 
186-3 SPC 0055 7070 11/30/99 -93 -13.2 
58-3 SPC 0055 9316 4/19/00 -117 -17.3 
59-3 SPC 0055 9318 4/19/00 -89 -12.0 
60-4 SPC 0055 9320 4/19/00 -87 -11.8 
61-3 SPC 0055 9322 4/19/00 -101 -14.3 
61-4 SPC 0055 9324 4/19/00 -121 -18.3 
75-3 SPC 0055 9307 4/18/00 -117 -16.5 
77-3 SPC 0055 9309 4/18/00 -83 -11.0 
78-3 SPC 0055 9311 4/18/00 -92 -11.6 
78-4 SPC 0055 9313 4/18/00 -101 -16.5 
186-3 SPC 0055 9303 4/18/00 -90 -13.7 
58-3 SPC 0055 9330 8/21/00  -17.2 
59-3 SPC 0055 9332 8/21/00 -90 -10.9 
60-3/2/4 SPC 0055 9334 8/21/00 -89 -12.0 
61-3/4 SPC 0055 9336 8/21/00 -89 -12.0 

Table 6.3.4.2-2. Hydrogen (dD) and Oxygen (d18O) Isotope Compositions of Steam Condensed from 
Gas Samples Collected During the DST Heating Phase (Continued) 
Sample Intervala YMP Tracking # Date Sampled 
Isotope Composition 
Hydrogen 
dD () 
Oxygen 
d18O ()b 
75-3 SPC 0055 9340 8/22/00 -118 -17.1 
76-3 SPC 0055 9342 8/22/00 -101 -13.4 
77-3/2 SPC 0055 9344 8/22/00 -85 -10.7 
78-3/2 SPC 0055 9347 8/22/00 -95 -13.0 
185-2 SPC 0055 9349 8/22/00 -139 -17.3 
185-3 SPC 0055 9351 8/22/00 -132 -18.1 
186-3 SPC 0055 9353 8/22/00 -123 -15.0 
57-3/4 SPC 0055 9396 1/22/01 -128 -17.9 
58-3 SPC 0055 9398 1/22/01 -126 -19.4 
59-3 SPC 0055 9400 1/22/01 -86 -11.2 
60-3/2/4 SPC 0055 9402 1/22/01 -81 -11.1 
61-3/2 SPC 0055 9404 1/22/01 -88 -11.0 
74-3 SPC 0055 9407 1/23/01 -122 -17.4 
75-3 SPC 0055 9409 1/23/01 -121 -17.1 
76-3/2 SPC 0055 9411 1/23/01 -90 -12.5 
77-3/2 SPC 0055 9413 1/23/01 -90 -11.0 
78-3/2/4 SPC 0055 9415 1/23/01 -95 -12.8 
185-2 SPC 0055 9417 1/23/01 -139 -18.4 
185-3 SPC 0055 9419 1/23/01 -132 -18.1 
186-3 SPC 0055 9421 1/23/01 -135 -19.1 
57-3/4 SPC 0055 9358 4/17/01 -123 -18.0 
58-3 SPC 0055 9360 4/17/01 -129 -19.6 
59-3 SPC 0055 9362 4/17/01 -85 -11.1 
60-3/2/4/1 SPC 0055 9364 4/17/01 -81 -10.1 
61-3/2/4 SPC 0055 9366 4/17/01 -86 -11.3 
74-3 SPC 0055 9368 4/18/01 -123 -17.7 
75-3 SPC 0055 9370 4/18/01 -112 -16.8 
76-3/2 SPC 0055 9372 4/18/01 -92 -13.0 
77-3/2 SPC 0055 9374 4/18/01 -91 -11.7 
78-3/2/4/1 SPC 0055 9376 4/18/01 -91 -12.9 
185-2 SPC 0055 9379 4/18/01 -137 -18.2 
185-3 SPC 0055 9381 4/18/01 -133 -18.5 
186-3 SPC 0055 9383 4/18/01 -111 -16.2 
57-3/4 SPC 0055 9386 8/07/01 -121 -17.7 
58-3 SPC 0055 9388 8/07/01 -129 -20.1 
59-3/4 SPC 0055 9390 8/08/01 -87 -11.3 
60-3/2/4/1 SPC 0055 9392 8/07/01 -74 -8.8 
61-3/2/4 SPC 0055 9355 8/07/01 -59 -10.7 
74-3 SPC 0055 9432 8/08/01 -126 -17.8 
75-3 SPC 0055 9434 8/08/01 -115 -16.9 
76-3/2 SPC 0055 9436 8/08/01 -100 -13.2 
77-3 SPC 0055 9438 8/08/01 -89 -11.6 

Table 6.3.4.2-2. Hydrogen (dD) and Oxygen (d18O) Isotope Compositions of Steam Condensed from Gas 
Samples Collected During the DST Heating Phase (Continued) 
Sample Intervala YMP Tracking # Date Sampled 
Isotope Composition 
Hydrogen 
dD () 
Oxygen 
d18O ()b 
78-3/2/4 SPC 0055 9440 8/08/01 -84 -10.1 
185-2 SPC 0055 9425 8/07/01  -18.6 
185-3 SPC 0055 9427 8/07/01 -117 -18.4 
186-3 SPC 0055 9429 8/07/01 -112 -16.2 
57-3/4 SPC 0101 6518 11/27/01 -116 -16.9 
58-3 SPC 0101 6520 11/27/01 -124 -18.3 
59-3/4 SPC 0101 6523 11/28/01 -78 -10.2 
61-3/2/4 SPC 0101 6525 11/28/01 -60 -11.5 
74-3 SPC 0101 6502 11/27/01 -130 -18.1 
75-3 SPC 0101 6505 11/27/01 -114 -16.1 
76-1 SPC 0101 6512 11/27/01 -134 -18.2 
76-3/2 SPC 0101 6510 11/27/01 -143 -12.6 
76-4 SPC 0101 6508 11/27/01 -79 -11.3 
77-3 SPC 0101 6514 11/27/01 -95 -12.3 
78-3/2/4 SPC 0101 6516 11/27/01 -88 -11.5 
185-1 SPC 0055 9449 11/26/01 -133 -17.4 
185-2 SPC 0055 9446 11/26/01 -138 -18.3 
185-3 SPC 0055 9444 11/26/01 -122 -18.4 
185-4 SPC 0055 9451 11/26/01 -149 -17.7 
186-3 SPC 0101 6500 11/26/01 -100 -14.2 
186-3(II) SPC 0101 6527 11/28/01 -113 -16.2 
57-3/4 SPC 0101 6547 1/08/02 -81 -17.7 
58-3 SPC 0101 6549 1/08/02 -84 -18.5 
59-3/4 SPC 0101 6401 1/08/02 -79 -10.5 
61-3/2/4 SPC 0101 6403 1/08/02 -85 -11.2 
74-3 SPC 0101 6539 1/07/02 -117 -17.1 
75-3 SPC 0101 6541 1/07/02 -114 -17.0 
76-3/2 SPC 0101 6543 1/07/02 -88 -11.9 
78-3/2/4 SPC 0101 6545 1/07/02 -82 -10.7 
185-2 SPC 0101 6533 1/07/02 -131 -17.3 
185-3 SPC 0101 6535 1/07/02 -132 -18.5 
186-3 SPC 0101 6537 1/07/02 -109 -15.4 
DTNs: LB980420123142.005 [DIRS 111471], LB980715123142.003 [DIRS 111472], 
LB0404ISODSTHP.003 [DIRS 169254], LB990630123142.003 [DIRS 111476], 
LB000121123142.003 [DIRS 146451], LB000718123142.003 [DIRS 158342], 
LB0011CO2DST08.001[DIRS 153460, LB0102CO2DST98.001 [DIRS 159306], 
LB0108CO2DST05.001 [DIRS 156888], LB0203CO2DSTEH.001 [DIRS 158349], 
LB0206C14DSTEH.001 [DIRS 159303]. 
a 
Field # corresponds to intervals in hydrology boreholes 
b Stable oxygen isotope ratios are given as part per thousand or per mil () variations in the ratio of 18O to 
16O relative to oxygen isotope ratio of VSMOW (Vienna Standard Mean Ocean Water), an internationally 
accepted standard for reporting oxygen isotope data 

Table 6.3.4.3-1. Mineral Coverage on Fractures, Drill Core ESF-HD-TEMP-2 
Section 1, 25.0-29.3 ft, Nonvapor-Phase Interval 
Stellerite Manganese Minerals Crystalline Silica/Feldspar Clay Calcite 
42.3 percent 1.5 percent 1.0 percent 4.3 percent 0 percent 
Section 2, 62.15-66.45 ft, Vapor-Phase Interval 
Stellerite Manganese Minerals Crystalline Silica/Feldspar Clay Calcite 
41.6 percent 2.0 percent 3.5 percent 4.7 percent 2.2 percent 
DTN: LA9912SL831151.002 [DIRS 146449]. 
Table 6.3.4.5-1. Field and Laboratory Analytical Data for Borehole 75-2 Water Samples 
Borehole and zone 75-2a 75-2a 75-2a 75-2a 75-2b 75-2b 
Sample identifier 
SPC 
01016607 
SPC 
01016608 
SPC 
01016554 
SPC 
01016619 
SPC 
01016632 
SPC 
01016652 
Collection date 2/19/2002 2/19/2002 3/6/2002 3/12/2002 4/4/2002 6/26/2002 
Field pH 4.8 4.8 4.9 4.8 5.0 6.0 
Electrical conductivity 
(S/cm) 
2972c 2972c 2040c 1332c 1062c 278 
Total dissolved solids, 
(ppm) 
2253c 2253c 1486c 903c 708c 176 
Cations (mg/L) 
Na 174 184 133 103 57.3 19.6 
Si 131 130 123 122.0 >98 29 
Ca 394 366 209 99.5 73 27 
K 18.4 17.8 15.9 8.2 8.7 2.7 
Mg 162 162 102 38.9 37 9.5 
Al nd nd nd trace 0.022 0.283 
Fe 1.4 1.5 0.81 0.58 na na 
Li 0.25 0.26 0.19 0.14 na na 
Sr 4.8 5.1 2.7 1.0 1.1 0.310 
Ag trace trace nd 
<0.0025 
trace 0.00004 na 
As nd nd nd trace 0.001 nd <0.003 
Ba 0.11 0.12 0.067 0.049 0.046 0.015 
Be nd trace nd trace 0.0023 na 
Cd 0.0071 0.0083 0.0037 0.0021 0.0011 na 
Co 0.090 0.091 0.059 0.037 0.025 0.0058 
Cr 0.38 0.40 0.25 0.18 0.094 na 
Cs na na na na 0.0016 na 
Cu trace trace trace 0.032 0.121 na 
Hg na na na na nd <0.001 nd <0.001 
Mn 14.7 15.2 9.1 4.7 >3.0 1.340 
Mo 0.069 0.072 0.046 0.028 0.0192 0.0093 
Ni 3.2 3.3 2.3 1.6 na na 
Pb nd nd nd trace 0.0087 0.0229 

Table 6.3.4.5-1. Field and Laboratory Analytical Data for Borehole 75-2 Water Samples 
(continued) 
Borehole and zone 75-2a 75-2a 75-2a 75-2a 75-2b 75-2b 
Anions (mg/L) 
Rb na na na na 0.0308 0.0066 
Sb nd nd nd trace na na 
Se 0.43 0.46 0.21 0.097 0.005 na 
Tl nd nd nd trace na na 
U na na na na 0.001 0.00006 
V nd nd nd trace 0.0033 na 
Zn 36.1 38.5 22.8 15.2 >12.0 4.250 
HCO3 40 40 40 15 na 51 
Total inorganic carbon na na 17 na na na 
Total organic carbon na na 142 na na na 
F 1.28 1.11 1.02 1.11 na 0.86 
Cl 522 532 418 273 na 47 
Br 0.84 0.66 0.71 0.45 na nd <0.1 
SO4 818 821 356 161 na 18 
PO4 nd <0.3 nd <0.3 nd <0.3 nd <0.3 na na 
NO2 nd <0.2 nd <0.2 nd <0.2 nd <0.2 na na 
NO3 16.2 16.4 11.8 8.10 na 1.8 
DTNs: LL030305023121.023 [DIRS 170570], GS020808312272.004 [DIRS 166569], 
SN0210F3903102.004 [DIRS 170573], SN0211F3903102.005 [DIRS 170574] and 
GS030408312272.002 [DIRS 165226]. 
a 
Analyzed at LLNL. 
b 
Analyzed at USGS. 
Values are approximate because measurements were outside the calibration range of the instrument. 
NOTE: nd = not detected. Na = not analyzed. Trace = very low concentration. 
Table 6.3.4.5-2. Assessment of Introduced Materials Effect on Water Chemistry 
Date 
Collection 
Hole/Zone pHa 
Electrical 
Conductivity 
(S/cm)a 
Total 
Dissolved 
Solids 
(ppm)a 
Introduced 
Materials 
Effect on 
Water 
Chemistryb Comments 
06/04/98 60/2 7.5 not affected Large volume of water (5.7 liters) 
that probably condensed in the 
sampling zone during early heating 
in 1998. Part of Zone 60/2 passes 
within one meter of wing heater 
holes 87 and 88. 
06/04/98 60/3 7.7 not affected 
08/12/98 60/2 6.9 not affected 
08/12/98 60/3 6.8 not affected 

Table 6.3.4.5-2. Assessment of Introduced Materials Effect on Water Chemistry (Continued) 
Date 
Collection 
Hole/Zone pHa 
Electrical 
Conductivity 
(S/cm)a 
Total 
Dissolved 
Solids 
(ppm)a 
Introduced 
Materials 
Effect on 
Water 
Chemistryb Comments 
08/12/98 77/3 5.5 not affected The packer between Zone 77/3 and 
77/2 deflated on 1/7/98. Water 
collected in 77/3 is down slope from 
zone 77/2. 
11/12/98 59/4 6.6 affected Color noted as yellow by lab report 
and high chloride content indicates 
probable contamination from 
neoprene packer. 
11/12/98 60/3 6.9 not affected 
11/12/98 186/3 6.8 not affected 
01/26/99 60/3 7.36-7.44 ---140-141 possibly 
affected 
Collection zone contains fluoride 
bearing rubber packer. 
01/26/99 186/3 7.24-7.17 320 possibly 
affected 
Collection zone contains fluoride 
bearing rubber packer. 
03/30/99 60/3 8.0 not affected 
03/30/99 77/3 7.0 not affected Packer deflated between zones 2 
and 3. 
04/20/99 60/3 4.19-4.77 ---10-30 possibly 
affected 
pH and dissolved solids values 
suggest that much of the sample 
resulted from condensed steam in 
the sampling tube. 
04/20/99 BH80 6.39-6.72 ---30-50 possibly 
affected 
This hole contains a teflon tube to 
accommodate neutron logging. 
The annulus between the tube and 
borehole wall is grouted. Strontium 
isotopic composition indicates grout 
interaction (see Section 6.3.4.4). 
05/10/99 60/3 4.68- 4.80 8.7-12.4 5.4-8.0 possibly 
affected 
Condensate in sampling tube, 
collection zone contains fluoride 
bearing rubber packer. 
05/25/99 60/3 4.68-4.75 9.4-16.1 5.9-10.2 possibly 
affected 
Condensate in sampling tube, 
collection zone contains fluoride 
bearing rubber packer. 
06/24/99 60/3 5.02-5.08 8.84 possibly 
affected 
Condensate in sampling tube, 
collection zone contains fluoride 
bearing rubber packer. 
08/09/99 59/2 affected Elevated chloride (above halite 
stoichiometry), sulfate. No field 
measurements. 
08/10/99 61/3 not affected No field measurements. 
10/27/99 59/2 5.93-6.08 110.2-113.4 not affected 

Table 6.3.4.5-2. Assessment of Introduced Materials Effect on Water Chemistry (Continued) 
Date 
Collection 
Hole/Zone pHa 
Electrical 
Conductivity 
(S/cm)a 
Total 
Dissolved 
Solids 
(ppm)a 
Introduced 
Materials 
Effect on 
Water 
Chemistryb Comments 
10/27/99 59/3 6.64-6.81 192.3-203.1 118.1 not affected 
10/27/99 76/3 6.14-6.46 not affected 
11/30/99 59/2 6.8-7.53 67.0-80.8 42.3-52.8 not affected 
11/30/99 59/3 7.06-7.47 105.2-112 63.8-65.86 not affected 
11/30/99 76/3 6.86-7.04 307.2-326.2 198.6-207.3 not affected 
11/30/99 77/3 4.68 156.4 9.99 possibly 
affected 
Reported conductivity and TDS 
values are suspect. The packer 
between zones 77/3 and 77/2 failed 
on 1/7/98. Water collected in 77/3 
is down slope from zone 77/2. 
Sample contains elevated fluoride 
(15 mg/L). 
01/25/00 59/2 6.68-7.43 61.21-104.7 37.89-67.1 not affected 
01/25/00 77/2 4.63 61.24 40.24 possibly 
affected 
Collection zone contains fluoride 
bearing rubber packer. Sample 
contains elevated fluoride (6.7 
mg/L). 
01/25/00 77/3 3.47 224.9 145.5 affected Low pH , elevated conductivity, and 
increased fluoride indicate 
condensation of HF acid in 
sampling tube. Deflated packer 
between zones 2 and 3. 
05/23/00 59/3 5.19 5.2 3.14 not affected pH and conductivity values suggest 
that sample condensed from steam 
in the sampling tube. 
05/23/00 76/3 6.92-6.96 134.8 86.86 not affected 
05/23/00 76/4 not affected Low ionic strength. No field 
measurements. 
06/29/00 59/2 6.81-7.08 79.9-100.3 49.12-62.73 not affected 
06/29/00 59/3 5.39-5.6 4.39-4.7 2.74-2.91 not affected pH and conductivity values suggest 
that sample condensed from steam 
in the sampling tube. 
06/29/00 59/4 4.6-4.74 14.83-13.72 8.48-9.21 not affected 
06/29/00 76/3 5.75 13.81 8.64 not affected 
06/29/00 76/4 4.74-4.77 12.85 7.99 not affected 
06/29/00 78/2 4.12 35.64 20.44 not affected Packer deflated between zones 2 
and 3. 
06/29/00 78/3 4.22 28.54 17.78 not affected 
08/21/00 76/3 6.27-5.04 not affected 
08/21/00 76/4 5.01-4.99 not affected 
08/21/00 78/3 5.05-5.21 not affected Packer deflated between zones 2 
and 3. 
01/23/01 59/2 not affected Ultrameter problem, no pH, TDS. 
Chloride below halite stoichiometry. 

Table 6.3.4.5-2. Assessment of Introduced Materials Effect on Water Chemistry (Continued) 
Date 
Collection 
Hole/Zone pHa 
Electrical 
Conductivity 
(S/cm)a 
Total 
Dissolved 
Solids 
(ppm)a 
Introduced 
Materials 
Effect on 
Water 
Chemistryb Comments 
01/23/01 59/3 not affected Ultrameter problem, no pH, TDS. 
Condensate in sampling tube. 
01/23/01 60/4 not affected Ultrameter problem, no pH, TDS. 
Low ionic strength, fluoride <1 
mg/L. 
04/17/01 59/2 4.87-5.27 6.6-6.7 4.2-10.4 not affected Entire sample preserved with 
HNO3, no anion analysis 
04/17/01 59/3 5.82-5.96 30.6-54.2 19.0-34.7 not affected Entire sample preserved with 
HNO3, no anion analysis 
04/17/01 59/4 5.2 9.8 6.1 not affected Entire sample preserved with 
HNO3, no anion analysis 
04/17/01 76/2 5.7-8.3 33.5-41.5 22.5-25.8 not affected Packer deflated between zones 2 
and 3 
06/26/01 76/3 5.3 3.7 not affected pH, total dissolved solids, and 
conductivity values suggest that 
sample condensed from steam in 
the sampling tube for all water 
collected 6/26/01 and 6/27/01. 
Packer deflated between zones 2 
and 3. 
06/26/01 76/4 5.5 11.2 6.7 not affected 
06/26/01 78/2 5.3 5.2 3.2 not affected Packers deflated between zones 2, 
3, and 4. 
06/26/01 78/3 5.0 5.2 3.4 not affected 
06/26/01 78/4 5.0 6.7 4.0 not affected 
06/27/01 59/2 5.1-5.6 4.0-6.4 2.6-3.8 not affected Adjacent zone packer (59/1) 
deflated 2/6/01, minimal impact to 
sampling in zone 2. 
06/28/01 BH-72 4.8 14.6 8.9 not affected No packer assembly in borehole, 
remnants of the Seamist liner are 
present. Condensed water sample 
acquired using push rods, flex-
tubing, and pump to draw steam. 
06/28/01 60/3 3.3 189 115.0 affected Low pH , elevated conductivity, and 
increased fluoride (17.7 mg/L) 
indicate condensation of HF acid in 
sampling tube. Deflated packers 
between zones 2, 3, and 4. 
06/28/01 60/4 5.1 10.5 8.8 possibly 
affected 
Collection zone contains fluoride 
bearing rubber packer. Packers 
deflated between zones 2, 3, and 4. 
No chemical analysis. 
08/07/01 76/3 5.2 4.1 2.5 not affected pH and conductivity values suggest 
that sample condensed from steam 
in the sampling tube for all water 
collected 6/26/01 and 6/27/01. 
Packer deflated between zones 2 
and 3. 

Table 6.3.4.5-2. Assessment of Introduced Materials Effect on Water Chemistry (Continued) 
Date 
Collection 
Hole/Zone pHa 
Electrical 
Conductivity 
(S/cm)a 
Total 
Dissolved 
Solids 
(ppm)a 
Introduced 
Materials 
Effect on 
Water 
Chemistryb Comments 
08/07/01 76/4 5.4 7.8 4.7 not affected pH and conductivity values suggest 
that sample condensed from steam 
in the sampling tube for all water 
collected 6/26/01 and 6/27/01. 
08/07/01 77/2 3.3 284 173.0 affected Low pH , elevated conductivity, and 
increased fluoride indicate 
condensation of HF acid in 
Borehole 77 sampling tubes. 
Packer deflated between zones 2 
and 3. 
08/07/01 77/3 3.3 231 138.0 affected 
08/07/01 78/2 4.5 8.8 5.2 not affected Condensate in sampling tubes. 
Packers deflated between zones 2, 
3, and 4. 
08/07/01 78/3 5.2 9.1 5.6 not affected 
08/07/01 78/4 5.5 14.3 8.8 not affected 
08/08/01 59/2 5.4 2.2 1.3 not affected Condensate in sampling tube 
08/08/01 59/3 4.9 6 3.6 not affected Condensate in sampling tube 
08/08/01 59/4 5.1 2.8 1.6 not affected Condensate in sampling tube 
08/08/01 60/1 4.8 25 15.0 possibly 
affected 
Condensate in sampling tube, 
collection zone contains fluoride 
bearing rubber packer. 
08/08/01 60/2 3.1 309 194.0 affected Low pH , elevated conductivity, and 
increased fluoride indicate 
condensation of HF acid in 
sampling tubes for Borehole 60. 
Deflated packers between zones 2, 
3, and 4. 
08/08/01 60/3 3.4 186 114.0 affected 
08/08/01 60/4 4.4 14.5 8.8 possibly 
affected 
Condensate in sampling tube, 
collection zone contains fluoride 
bearing rubber packer. 
10/22/01 76/3 5.2 8.4 5.1 not affected Condensate in sampling tube. 
Packer deflated between zones 2 
and 3. 
10/22/01 76/4 5.1 5.2 3.0 not affected Condensate in sampling tube 
10/22/01 77/2 3.1 403 245.0 affected Low pH , elevated conductivity, and 
increased fluoride indicate 
condensation of HF acid in 
Borehole 77 sampling tubes. 
Packer deflated between zones 2 
and 3. 
10/22/01 77/3 3.2 344 208.0 affected 
10/22/01 78/1 4.2 11.6 6.9 not affected Condensate in sampling tubes. 
Packers deflated between zones 1, 
2, 3, and 4. 
10/22/01 78/3 5.0 7.7 4.5 not affected 

Table 6.3.4.5-2. Assessment of Introduced Materials Effect on Water Chemistry (Continued) 
Date 
Collection 
Hole/Zone pHa 
Electrical 
Conductivity 
(S/cm)a 
Total 
Dissolved 
Solids 
(ppm)a 
Introduced 
Materials 
Effect on 
Water 
Chemistryb Comments 
10/22/01 78/4 5.4 10 6.0 not affected 
10/22/01 59/2 4.9 8.5 5.2 not affected Condensate in sampling tube 
10/22/01 59/3 5.0 5.2 3.0 not affected Condensate in sampling tube 
10/22/01 59/4 4.9 6 3.5 not affected Condensate in sampling tube 
10/22/01 60/2 3.2 406 252.0 affected Low pH, elevated conductivity, and 
increased fluoride indicate 
condensation of HF acid in 
Borehole 60 sampling tubes. 
Deflated packers between zones 2, 
3, and 4. 
10/22/01 60/3 3.5 151 90.0 affected No anion analysis. Low pH and 
elevated conductivity suggest 
condensation of HF acid in 
Borehole 60 sampling tubes. 
Deflated packers between zones 2, 
3, and 4. 
10/22/01 60/4 3.8 63 38.0 affected No anion analysis. Low pH and 
elevated conductivity suggest 
condensation of HF acid in 
Borehole 60 sampling tubes. 
Deflated packers between zones 2, 
3, and 4. 
10/22/01 61/1 4.4 14.6 8.7 not affected Condensate in sampling tube 
10/22/01 61/3 4.9 7.9 4.8 not affected Condensate in sampling tube. 
Deflated packers between zones 2, 
3, and 4. 
10/22/01 61/4 5.0 7.1 4.3 not affected Condensate in sampling tube. 
Deflated packers between zones 2, 
3, and 4. 
01/07/02 76/2 7.8 30.2 18.0 not affected Packer deflated between zones 2 
and 3 
01/07/02 76/3 4.9 7.3 4.3 not affected Condensate in sampling tube. 
Packer deflated between zones 2 
and 3. 
01/07/02 76/4 4.8 5.5 3.2 not affected Condensate in sampling tube 
01/07/02 78/2 5.1 4.9 2.9 not affected Condensate in sampling tubes. 
Packers deflated between zones 2, 
3, and 4. 
01/07/02 78/3 4.9 5.1 3.1 not affected 
01/07/02 78/4 4.9 5.4 3.2 not affected 
01/07/02 59/2 5.2 3.3 2.0 not affected Condensate in sampling tube 
01/07/02 59/3 5.3 2 1.2 not affected Condensate in sampling tube 
01/07/02 59/4 4.8 5.7 3.5 not affected Condensate in sampling tube 
01/07/02 61/2 5.5 6.5 4.0 not affected Condensate in sampling tube. 
Packers deflated between zones 1, 
2, 3, and 4. 

Table 6.3.4.5-2. Assessment of Introduced Materials Effect on Water Chemistry (Continued) 
Date 
Collection 
Hole/Zone pHa 
Electrical 
Conductivity 
(S/cm)a 
Total 
Dissolved 
Solids 
(ppm)a 
Introduced 
Materials 
Effect on 
Water 
Chemistryb Comments 
01/07/02 61/3 5.2 4.8 2.9 not affected Condensate in sampling tube. 
Packers deflated between zones 1, 
2, 3, and 4. 
01/07/02 61/4 5.1 7.7 4.5 not affected Condensate in sampling tube. 
Packers deflated between zones 1, 
2, 3, and 4. 
01/09/02 77/2 3.7 49.8 30.6 affected Low pH , elevated conductivity, and 
increased fluoride indicate 
condensation of HF acid in 
Borehole 77 sampling tubes. 
Packer deflated between zones 2 
and 3. 
01/09/02 77/3 3.4 176 106.0 affected 
01/16/02 76/2 8.3 35.5 22 not affected Packer deflated between zones 2 
and 3 
01/16/02 76/3 5.2 9.3 5.7 not affected Condensate in sampling tube. 
Packer deflated between zones 2 
and 3. 
01/16/02 77/2 3.8 34.2 21.4 affected Low pH, elevated conductivity, and 
increased fluoride indicate 
condensation of HF acid in 
Borehole 77 sampling tubes. 
Packer deflated between zones 2 
and 3. 
01/16/02 77/3 3.5 181 112 affected No chemical analysis. Low pH and 
elevated conductivity suggest 
condensation of HF acid in 
Borehole 77 sampling tubes. 
Packer deflated between zones 2 
and 3. 
01/16/02 78/2 4.9 6.5 4 not affected Condensate in sampling tubes. 
Packers deflated between zones 2, 
3, and 4. 
01/16/02 78/3 4.9 7.2 4.4 not affected 
01/16/02 78/4 4.9 6.6 4 not affected 
01/16/02 59/3 5.0 7.7 4.6 not affected Condensate in sampling tube 
01/16/02 59/4 5.1 4.7 2.8 not affected Condensate in sampling tube 
01/16/02 61/4 4.9 9.4 5.8 not affected Condensate in sampling tube. 
Packers deflated between zones 1, 
2, 3, and 4. 
01/23/02 75/3 4.4 14.5 9.1 not affected 
01/23/02 76/2 5.9-8.1 29.2-33.6 17.2-20.8 not affected Packer deflated between zones 2 
and 3 
01/23/02 76/3 4.9 7.8 4.7 not affected Condensate in sampling tube. 
Packer deflated between zones 2 
and 3. 
01/23/02 76/4 5.0 5 2.9 not affected Condensate in sampling tube 

Table 6.3.4.5-2. Assessment of Introduced Materials Effect on Water Chemistry (Continued) 
Date 
Collection 
Hole/Zone pHa 
Electrical 
Conductivity 
(S/cm)a 
Total 
Dissolved 
Solids 
(ppm)a 
Introduced 
Materials 
Effect on 
Water 
Chemistryb Comments 
01/23/02 77/2 4.1 43.6 26.9 affected Low pH , elevated conductivity, and 
increased fluoride indicate 
condensation of HF acid in 
Borehole 77 sampling tubes. 
Packer deflated between zones 2 
and 3. 
01/23/02 77/3 3.6 207 130 affected 
01/23/02 78/2 5.6 9 5.7 not affected Condensate in sampling tubes 
consumed doing field analysis. 
Packers deflated between zones 2, 
3, and 4. 
01/23/02 78/3 5.5 5.8 3.6 not affected 
01/23/02 78/4 5.0 5.9 3.6 not affected 
01/23/02 59/2 4.5 7.4 4.4 not affected Condensate in sampling tube 
01/23/02 59/3 4.5 5.4 3.2 not affected Condensate in sampling tube 
01/23/02 59/4 4.3 3.8 2.3 not affected Condensate in sampling tube 
02/05/02 76/2 6.7-7.8 32.0-50.0 21.0-30.9 not affected Packer deflated between zones 2 
and 3 
02/05/02 76/3 5.0 3 1.9 not affected Condensate in sampling tube. 
Packer deflated between zones 2 
and 3. 
02/05/02 76/4 5.0 2.7 1.6 not affected Condensate in sampling tube 
02/05/02 77/2 3.9 51 32 affected Low pH , elevated conductivity, and 
increased fluoride indicate 
condensation of HF acid in 
Borehole 77 sampling tubes. 
Packer deflated between zones 2 
and 3. 
02/05/02 77/3 3.7 138 85 affected 
02/05/02 78/2 5.1 6.5 4 not affected Condensate in sampling tube. 
Packer deflated between zones 2 
and 3. 
02/05/02 59/2 5.0 3.2 1.9 not affected Condensate in sampling tube 
02/05/02 59/3 5.1 2.3 1.3 not affected Condensate in sampling tube 
02/05/02 59/4 5.0 3.7 2.2 not affected Condensate in sampling tube 
02/05/02 61/2 5.3 6.7 4.2 not affected Condensate in sampling tube. 
Packers deflated between zones 1, 
2, 3, and 4. 
02/05/02 61/3 5.1 6.2 3.9 not affected Sampling tube condensate 
consumed doing field analyses. 
Packers deflated between zones 1, 
2, 3, and 4. 
02/05/02 61/4 4.9 6 3.7 not affected Condensate in sampling tube. 
Packers deflated between zones 1, 
2, 3, and 4. 

Table 6.3.4.5-2. Assessment of Introduced Materials Effect on Water Chemistry (Continued) 
Date 
Collection 
Hole/Zone pHa 
Electrical 
Conductivity 
(S/cm)a 
Total 
Dissolved 
Solids 
(ppm)a 
Introduced 
Materials 
Effect on 
Water 
Chemistryb Comments 
02/19/02 75/2 4.8 >994c >663c affected Yellow color, extremely high 
conductivity, and increased chloride 
concentration suggest degradation 
of neoprene packer. 
02/19/02 76/2 4.7 6.1 4 not affected Packer deflated between zones 2 
and 3 
02/19/02 76/4 4.8 3.5 2.2 not affected Condensate in sampling tube 
02/19/02 77/2 4.3 6.5 4.3 affected Low pH and increased fluoride 
indicate condensation of HF acid in 
Borehole 77 sampling tubes. 
Packer deflated between zones 2 
and 3. 
02/19/02 77/3 3.4 121 79.3 affected No chemical analysis. Low pH and 
elevated conductivity suggest 
condensation of HF acid in 
Borehole 77 sampling tubes. 
Packer deflated between zones 2 
and 3. 
02/19/02 59/2 5.0 2.9 1.8 not affected Condensate in sampling tube 
02/19/02 59/3 5.0 2.4 1.5 not affected Condensate in sampling tube 
02/19/02 59/4 4.7 6.1 3.9 not affected Condensate in sampling tube 
03/06/02 60 3.8 83 54.6 affected Packer assembly removed from 
borehole on 11/14/01. Sampling 
tube end placed 74 from collar to 
acquire sample. Low pH , elevated 
conductivity, and increased fluoride 
indicate condensation of HF acid in 
sampling tube. 
03/06/02 60 4.3 22.4 14.6 affected Packer assembly removed from 
borehole on 11/14/01. Sampling 
tube end placed 132 from collar to 
acquire sample. Low pH , elevated 
conductivity, and slightly increased 
fluoride indicate condensation of 
HF acid in sampling tube. 
03/06/02 75/2 4.9 >994* >663* affected Yellow color, extremely high 
conductivity, and increased chloride 
concentration suggest degradation 
of neoprene packer. 
03/06/02 76/3 5.1 12.5 8.3 not affected Packer deflated between zones 2 
and 3 
03/12/02 75/2 4.8 >994c >663c affected Yellow color, extremely high 
conductivity, and increased chloride 
concentration suggest degradation 
of neoprene packer. 
03/12/02 76/3 4.6 7.6 4.7 not affected Sampling tube condensate 
consumed doing field analyses. 
Packer deflated between zones 2 
and 3. 

Table 6.3.4.5-2. Assessment of Introduced Materials Effect on Water Chemistry (Continued) 
Date 
Collection 
Hole/Zone pHa 
Electrical 
Conductivity 
(S/cm)a 
Total 
Dissolved 
Solids 
(ppm)a 
Introduced 
Materials 
Effect on 
Water 
Chemistryb Comments 
03/12/02 76/4 4.5 9.5 5.8 not affected Condensate in sampling tube 
03/12/02 77/2 4.1 32.3 20 affected Low pH , elevated conductivity, and 
increased fluoride indicate 
condensation of HF acid in 
Borehole 77 sampling tubes. 
Packer deflated between zones 2 
and 3. 
03/12/02 77/3 3.5 109 67.6 affected 
03/12/02 78/2 4.7 8.7 5.5 not affected Condensate in sampling tubes 
consumed doing field analysis. 
Packers deflated between zones 2, 
3, and 4. 
03/12/02 78/3 4.8 8.4 5.3 not affected 
03/12/02 78/4 4.6 7.3 4.6 not affected 
03/12/02 59/2 5.1 4.2 2.5 not affected Condensate in sampling tube 
03/12/02 59/3 5.3 3 1.8 not affected Condensate in sampling tube 
03/12/02 59/4 5.2 2 1.2 not affected Condensate in sampling tube 
03/12/02 61/2 5.1 15.9 10 not affected 
04/04/02 75/2 5.0 >994c >663c affected Yellow color, extremely high 
conductivity, and increased chloride 
concentration suggest degradation 
of neoprene packer. 
04/04/02 76/3 4.6 13.6 8.5 not affected Sampling tube condensate 
consumed doing field analyses. 
Packer deflated between zones 2 
and 3. 
04/04/02 76/4 4.5 7.1 4.4 not affected Condensate in sampling tube 
04/04/02 77/3 3.7-3.8 62.7-103 39.6-65 affected Low pH , elevated conductivity, and 
increased fluoride indicate 
condensation of HF acid. Packer 
deflated between zones 2 and 3. 
04/04/02 78/3 4.8 5.1 3.2 not affected Sampling tube condensate 
consumed doing field analyses. 
Packers deflated between zones 2, 
3, and 4. 
04/04/02 78/4 4.7 5.2 3.2 not affected Condensate in sampling tube. 
Packers deflated between zones 2, 
3, and 4. 
04/04/02 59/4 5.4 6.3 3.9 not affected Condensate in sampling tube 
04/04/02 61/3 4.9 7.7 4.8 not affected Condensate in sampling tube. 
Packers deflated between zones 1, 
2, 3, and 4. 
04/04/02 61/4 4.9 9.7 6.1 not affected Sampling tube condensate 
consumed doing field analyses. 
Packers deflated between zones 1, 
2, 3, and 4. 

Table 6.3.4.5-2. Assessment of Introduced Materials Effect on Water Chemistry (Continued) 
Date 
Collection 
Hole/Zone pHa 
Electrical 
Conductivity 
(S/cm)a 
Total 
Dissolved 
Solids 
(ppm)a 
Introduced 
Materials 
Effect on 
Water 
Chemistryb Comments 
04/25/02 75/2 5.0 1089 732 affected Yellow color, extremely high 
conductivity, and increased chloride 
concentration suggest degradation 
of neoprene packer. 
04/25/02 76/3 4.5 25.5 15.8 not affected Sampling tube condensate 
consumed doing field analyses. 
Packer deflated between zones 2 
and 3. 
04/25/02 77/3 3.8 54 34.1 affected Low pH , elevated conductivity, and 
increased fluoride indicate 
condensation of HF acid. Packer 
deflated between zones 2 and 3. 
04/25/02 59/2 5.0 4.9 3 not affected Sampling tube condensate 
consumed doing field analyses. 
04/25/02 59/4 4.9 2.9-4.3 1.7-2.5 not affected Condensate in sampling tube 
05/29/02 76/4 5.3 12.1 7.5 not affected Condensate in sampling tube 
05/29/02 78/4 6.4 10 6.2 not affected Sampling tube condensate 
consumed doing field analyses. 
Packers deflated between zones 2, 
3, and 4. 
05/29/02 59/2 5.9 8 5 not affected Sampling tube condensate 
consumed doing field analyses. 
05/29/02 59/3 5.6 4.2 2.6 not affected Sampling tube condensate 
consumed doing field analyses. 
05/29/02 59/4 5.2 3.5 2.1 not affected Condensate in sampling tube 
06/26/02 75/2 6.0 278 176 affected High conductivity, increased 
chloride (above halite 
stoichiometry) suggest degradation 
of neoprene packer. 
06/26/02 75/3 6.1 12.6 7.8 not affected Sample consumed doing field 
analyses. 
06/26/02 76/3 4.7 14.2 8.8 not affected Sampling tube condensate 
consumed doing field analyses. 
Packer deflated between zones 2 
and 3. 
06/26/02 76/4 5.3 8.4 5.2 not affected Condensate in sampling tube 
06/26/02 78/3 5.8 10.3 6.4 not affected Sampling tube condensate 
consumed doing field analyses. 
Packers deflated between zones 2, 
3, and 4. 
06/26/02 78/4 5.5 7.6 4.7 not affected 
06/26/02 59/2 6.7 11.3 6.9 not affected 

Table 6.3.4.5-2. Assessment of Introduced Materials Effect on Water Chemistry (Continued) 
Date 
Collection 
Hole/Zone pHa 
Electrical 
Conductivity 
(S/cm)a 
Total 
Dissolved 
Solids 
(ppm)a 
Introduced 
Materials 
Effect on 
Water 
Chemistryb Comments 
06/26/02 59/3 6.4 8.5 5.2 not affected Sampling tube condensate 
consumed doing field analyses. 
06/26/02 59/4 6.2 6.5 4 not affected Condensate in sampling tube 
DTNs: SN0208F3903102.002 [DIRS 161246], SN0210F3903102.004[DIRS 170573], SN02110F3903102.005 
[DIRS 170574], LL020709923142.023 [DIRS 161677] (unqualified), LL030305023121.023 [DIRS 170570], 
LL030310023121.024 [DIRS 170571]. 
a 
b 
blank spaces indicate that no data was acquired. 
All water samples were exposed to introduced materials; the effects may not be detectable through measurement 
and data assessment. 
measurement greater than calibrated range of instrument. 

Table 6.3.4.5-3. Field measurements and F-content of condensates sampled during the HF field tests 
Sample Identification SMF Number 
Collection 
Date 
Field 
pH 
E.C. / TDS 
(S/cm) / (ppm) 
F 
(mg/L) 
BH 72 (pretest)a SPC00559475 6/28/2001 4.8 15 / 9 nd < 0.007 
BH 72 (pretest)a SPC00575228 11/8/2001 5.1  5.5 19 / 12 0.15 
BH 72 baselinea SPC00575219 11/26/2001 5.3 14 / 9 nd < 0.007 
Fluoroelastomer (FKM) and Teflon installed 11/26/2001 
BH 72 (FKM, PTFE) SPC00559478 11/29/2001 3.8 41 / 25 2.39 
BH 72 (FKM, PTFE) SPC01016065 12/5/2001 3.4  3.5 139 / 88 7.60 
BH 72 (FKM, PTFE) SPC01016066 12/5/2001 3.44 135 / 85 7.23 
Fluoroelastomer (FKM) and Teflon removed 1/9/2002 
BH 55 (pretest)a SPC00575231 11/15/2001 7.5 279/176 0.52 
BH 55 (pretest)a SPC00559483 11/21/2001 NA NA 8.56b 
BH 55 baselinec SPC00575229 11/26/2001 5.0 21 / 13 1.34 
BH 55c SPC00559479 11/29/2001 5.2 NA 0.35 
BH 55c SPC01016067 12/5/2001 NA NA 0.08 
DTNs: SN0208F3903102.003 [DIRS 170620], LL020405123142.019 [DIRS 159307]. 
a 
sample acquired with Tygon tubing
sample acquired using C276 alloy tubing
b 
sample likely contaminated, refer to Section 6.3.4.5.5 
Table 6.3.4.5-4. Fluoride Concentrations (ppm)/pH from Gas Flow-Through Experiments 
140C 170C 
Date Control Tuff + 
FKM FKM Tuff Tuff FKM Teflon Tuff + 
Fluorite 
Experiment LBNL-1a: recirculation with water (" recirculation line) 
01/04/02 0.00/6.27 1.11/6.31 1.41/6.03 0.03/6.77 0.18/8.32 0.46/5.36 0.07/8.24 0.28/7.40 
01/05/02 0.00/6.85 2.10/6.05 2.51/6.18 0.02/8.34 0.22/8.14 0.48/5.19 0.14/8.35 0.95/8.11 
01/06/02 0.00/7.11 2.41/5.68 2.58/6.16 0.03/7.10 0.22/8.27 0.54/5.04 0.15/7.68 1.02/8.13 
01/07/02 0.00/6.71 3.63/5.61 4.30/5.70 0.32/8.04 0.18/5.84 1.16/4.97 0.12/5.82 0.99/6.82 
01/08/02 0.01/8.38 3.39/5.73 4.53/5.61 0.38/8.45 0.26/6.55 1.07/4.96 0.16/7.62 1.13/8.03 
01/09/02 0.00/7.18 3.60/5.83 4.66/5.90 0.30/8.55 0.23/6.88 0.92/5.03 0.16/8.22 0.98/7.93 
01/10/02 0.00/7.71 3.44/5.85 4.52/5.66 0.29/8.61 0.21/7.15 1.04/4.38 0.15/7.78 0.91/8.21 
Experiment LBNL-1b: recirculation with water (" recirculation line) 
01/12/02 0.01/7.24 0.26/6.18 0.35/5.83 0.05/7.40 0.02/6.99 0.50/4.72 0.03/6.94 0.07/7.67 
01/13/02 0.01/7.79 0.35/5.90 0.42/5.48 0.09/8.05 0.02/7.23 0.54/4.64 0.03/6.51 0.08/8.11 
01/14/02 0.01/8/31 0.34/5.73 0.40/5.44 0.11/8.65 0.02/7.31 1.66/4.34 0.04/6.28 0.08/8.56 
01/15/02 0.01/8.40 0.34/5.75 0.45/5.49 0.12/8.72 0.02/7.85 6.35/4.19 0.05/6.39 0.09/9.09 
Experiment LBNL-2: air scrubbing of reaction cell 
01/18/02 0.02/6.38 1.23/3.64 0.03/6.67 0.01/6.53 0.00/6.46 851.2a/2. 
07 
0.02/5.61 0.73/6.87 
DTN: LB0211DSTRBRDG.001[DIRS 170566]. 
a 
Average of four measurements. 

Table 6.3.4.5-5. Isothermal Degradation Rates of BH60 and BH72 Fluoroelastomer 
Sample Material 
Initial Sample 
Weight Temperature 
Degradation Rate 
after 5 hr 
Degradation Rate 
after 10 hr 
BH60 FKM 17.4901 mg 120C 0.13 g/hr/mg 0.10 g/hr/mg 
BH60 FKM 21.7081 mg 150C 0.32 g/hr/mg 0.17 g/hr/mg 
BH72 FKM 20.1977 mg 150C 0.10 g/hr/mg not measured 
BH60 FKM 543.788 mg 150C 0.12 g/hr/mg 0.07 g/hr/mg 
BH60 FKM 16.3638 mg 180C 0.98 g/hr/mg 0.61 g/hr/mg 
BH60 FKM 478.548 mg 180C 0.26 g/hr/mg 0.18 g/hr/mg 
DTN: LL030605512251.064 [DIRS 170572]. 
NOTE: Initial sample weight is the weight upon reaching the target temperature. 

INTENTIONALLY LEFT BLANK

7. SUMMARY 
7.1 RESULTS 
As mentioned in Section 1, this report documents the comprehensive set of measurements taken 
within the Yucca Mountain Site Characterization Project (YMP) Thermal Testing Program since 
its inception in 1996. This documentation is intended to make data collected readily usable to 
end users. Only brief discussions are provided for different data sets. These are intended to 
impart a clear sense of applicability of data, so that they will be used properly within the context 
of measurement uncertainty. This approach also keeps this report to a manageable size, an 
important constraint since massive amounts of measurements for three long-term thermal tests 
are addressed. Furthermore, thermal testing data currently residing in the TDMS have been 
reorganized and reformatted, as applicable, into new Summary DTNs. 
The summary of this work, which addresses diverse measurements collected in the YMP 
Thermal Testing Program, can be grouped into the following two categories: 
 
The preparation of a single, comprehensive document that provides ready access to key 
material related to the myriad of thermal testing measurements from each of the three 
thermal tests. 
 
The development of Summary DTNs that facilitate the usage of thermal testing data. 
Discussion of key material regarding thermal testing measurements associated with the YMP 
Thermal Testing Program is presented in Section 6. This discussion is organized by the four 
processes (thermal, hydrological, mechanical, and chemical) for each of the three thermal tests 
(LBT, SHT, and DST). Documentation includes an introduction and description, a cross section 
of behavior for each type of measurement (laboratory and field) for the two main testing phases 
(characterization and testing), a listing of Input DTNs that contain the measurements, discussion 
of corresponding measurement uncertainties, and a set of germane references that provide 
additional detail regarding the measurements. In addition, summaries of two in-depth 
investigations are provided: (1) heat and mass loss through the DST bulkhead, and (2) 
investigation of DST water samples with elevated concentrations of fluoride and chloride. 
Summary DTNs have also been restructured, as needed, to be more functional. These Summary 
DTNs for the LBT, SHT, and DST are listed in Tables 6.1-1, 6.2-1, and 6.3-1, respectively. The 
improved structure of the Summary DTNs facilitates the review, understanding, and usage of the 
thermal testing measurements by providing improved data layout including: consolidation of 
incremental test data into a single set, graphical descriptions, and coordinates of boreholes and 
sensors. 
Uncertainty associated with most measurements is also discussed. These discussions are 
restricted to actual measurements and data reduction. If quantifiable uncertainties were cited, 
then either references to manufacturers specifications were provided or they were referred to as 
estimates. Standard error analyses (mean and standard deviation) were provided for applicable 
measurements such as repetitive measurements of laboratory or field parameters. Test 
measurements of a response for a specific location and time are not applicable for standard error 

analyses. Limitations on data use, if any, are described in the TDMS for the individual data sets 
and the Summary DTNs listed in Tables 6-1, 6-2 and 6-3. 
7.2 YUCCA MOUNTAIN REVIEW PLAN CRITERIA ASSESSMENT 
This report contains a summarization of data obtained during testing for the LBT, SHT and DST. 
This report does not contain analyses or modeling activities. This section summarizes the 
contents of this report as they apply to the following acceptance criteria from Section 2.2.1.3.3.3 
of the Yucca Mountain Review Plan, Final Report (NRC 2003 [DIRS 163274]). 
Acceptance Criteria 1  System Description and Model Integration Are Adequate 
(4) 
Spatial and temporal abstractions appropriately address physical couplings (thermal-
hydrologic-mechanical-chemical). For example, the U.S. Department of Energy evaluates 
the potential for focusing of water flow into drifts, caused by coupled thermal-hydrologic-
mechanical-chemical processes. 
Data associated with coupled processes have been addressed in this report for the field thermal 
testing program which includes the LBT, SHT and DST. Data obtained from these tests have 
been used in downstream analyses and models that address phenomena caused by coupled 
processes such as the potential for focusing of water flow into drifts. 
(5) 
Sufficient technical bases and justification are provided for total system performance 
assessment assumptions and approximations for modeling coupled thermal-hydrologic-
mechanical-chemical effects on seepage and flow, the waste package chemical 
environment, and the chemical environment for radionuclide release. The effects of 
distribution of flow on the amount of water contacting the engineered barriers and waste 
forms are consistently addressed, in all relevant abstractions. 
Data obtained from the LBT, SHT and DST programs are used to establish technical bases and 
justification for some assumptions and approximations in modeling coupled processes in 
downstream technical products. 
(8) 
Adequate technical bases are provided, including activities such as independent modeling, 
laboratory or field data, or sensitivity studies, for inclusion of any thermal-hydrologic-
mechanical-chemical couplings and features, events, and processes as documented in the 
associated reports. 
This report provides field and laboratory data from the LBT, SHT and DST for use in developing 
and supporting downstream analyses and models that include various couplings and features, 
events, and processes. 
(9) 
Performance-affecting processes that have been observed in thermal-hydrologic tests and 
experiments are included into the performance assessment. For example, the U.S. 
Department of Energy either demonstrates that liquid water will not reflux into the 
underground facility or incorporates refluxing water into the performance assessment 
calculation, and bounds the potential adverse effects of alteration of the hydraulic pathway 
that result from refluxing water. 

Data associated with thermal-hydrologic tests and experiments have been addressed in this report 
for the LBT, SHT and DST. Data obtained from these tests have been used in downstream 
analyses and models that address performance-affecting processes such as vaporization, 
condensation, and reflux. 
Acceptance Criteria 2  Data Are Sufficient for Model Justification 
(1) 
Geological, hydrological, and geochemical values used in the license application are 
adequately justified. Adequate description of how the data were used, interpreted, and 
appropriately synthesized into the parameters is provided. 
Justification has been provided throughout this report for the geological, hydrological and 
geochemical data values reported herein. Data use and interpretation in downstream documents 
are described in those documents. 
(2) 
Sufficient data were collected on the characteristics of the natural system and engineered 
materials to establish initial and boundary conditions for conceptual models of thermal-
hydrologic-mechanical-chemical coupled processes, that affect seepage and flow and the 
engineered barrier chemical environment. 
Coupled effects associated with the repository natural system have been addressed in this report 
on the basis of results from the LBT, SHT and DST. These data assist in establishing initial and 
boundary conditions for conceptual models of coupled processes discussed in downstream 
documents. 
(3) 
Thermo-hydrologic tests were designed and conducted with the explicit objectives of 
observing thermal-hydrologic processes for the temperature ranges expected for repository 
conditions and making measurements for mathematical models. Data are sufficient to 
verify that thermal-hydrologic conceptual models address important thermal-hydrologic 
phenomena. 
The objective of the field thermal testing program is to gain a more in-depth understanding of the 
various couplings of thermal, hydrological, mechanical, and chemical processes associated with 
the temperature ranges expected for repository conditions. This report provides a comprehensive 
set of data used to support the thermal-hydrologic models. 
(4) 
Sufficient information to formulate the conceptual approach(es) for analyzing water contact 
with the drip shield, engineered barriers, and waste forms is provided. 
The data obtained from the field thermal testing program provides information needed to develop 
and support conceptual approaches for analyzing water contact as developed in downstream 
technical products. 
Acceptance Criterion 3  Data Uncertainty is Characterized and Propagated Through the 
Model Abstraction 
(4) Adequate representation of uncertainties in the characteristics of the natural system and 
engineered materials is provided in parameter development for conceptual models, 

process-level models, and alternative conceptual models. The U.S. Department of Energy 
may constrain these uncertainties using sensitivity analyses or conservative limits. For 
example, the U.S. Department of Energy demonstrates how parameters used to describe 
flow through the engineered barrier system bound the effects of backfill and excavation-
induced changes. 
Data associated with measurement uncertainties are quantified throughout this report. 
Equipment manufacturers uncertainty data are used when available. Standard error analyses 
(mean and standard deviation) are provided for applicable measurements such as repetitive 
measurements of laboratory or field parameters. 
Acceptance Criterion 5  Model Abstraction Output Is Supported by Objective 
Comparisons 
(3) Accepted and well-documented procedures are used to construct and test the numerical 
models that simulate coupled thermal-hydrologic-mechanical-chemical effects on seepage 
and flow, engineered barrier chemical environment, and the chemical environment for 
radionuclide release. Analytical and numerical models are appropriately supported. 
Abstracted model results are compared with different mathematical models, to judge 
robustness of results. 
The data obtained from the field thermal testing program, as reported herein, are used either to 
construct or execute downstream models or to test and support them, as is documented in the 
associated downstream reports. 

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Microseismic), Version 1.0. Milestone SP2770M4. Berkeley, California: Lawrence 
Berkeley National Laboratory. ACC: MOL.19980812.0239. 
Horita, J. and Wesolowski, D.J. 1994. Liquid-Vapor Fractionation of Oxygen and 159108
Hydrogen Isotopes of Water from the Freezing to the Critical Temperature. 
Geochemica et Cosmochimica Acta, 58, (16), 3425-3437. New York, New York: 
Elsevier. TIC: 240153. 
Hvorslev, M.J. 1951. Time Lag and Soil Permeability in Ground-Water 101868
Observations. AEWES Bulletin 36. Vicksburg, Mississippi: U.S. Army Corps of 
Engineers, Waterways Experiment Station. TIC: 238956. 
Jones, R.L. 2004. "Reference Information for the White Paper Entitled: Effects of 170750
Introduced Materials in the Drift Scale Test." Interoffice memorandum from R.L. 
Jones (BSC) to File, July 30, 2004, 0730042608, with attachment. ACC: 
MOL.20040802.0278; MOL.20020822.0121. 
Krisha, D.T. 2002. Issuance of Deficiency Report (DR) BSC(B)-03-043, Resulting 170840
from the BSC Quality Assurance (QA) Audit BQAP-BSC-03-02. Letter from D.T. 
Krisha (BSC) to R.W. Andrews (BSC), December 13, 2002, RFH:ps-1211025420, 
with enclosure. ACC: MOL.20030227.0225. 
LaBrecque, D.J.; Ramirez, A.L.; Daily, W.D.; Binley, A.M.; and Schima, S.A. 159047
1996. ERT Monitoring of Environmental Remediation Processes. Measurement 
and Science Technology, 7, (3), 375-383. Bristol, England: IOP Publishing. TIC: 
236228. 
Lin, W. and Daily, W. 1984. Transport Properties of Topopah Spring Tuff. UCRL-101393
53602. Livermore, California: Lawrence Livermore National Laboratory. ACC: 
NNA.19891026.0025. 
Lin, W.; Blair, S.C.; Wilder, D.; Carlson, S.; Wagoner, J.; DeLoach, L.; Danko, G.; 159069
Ramirez, A.L.; and Lee, K. 2001. Large Block Test Final Report. UCRL-ID-
132246, Rev. 2. Livermore, California: Lawrence Livermore National Laboratory. 
TIC: 252918. 

Lin, W.; Roberts, R.; Carlberg, E.; Ruddle, D.; and Pletcher, R. 2002. Moisture 159099
Retention Curves of Topopah Spring Tuff at Elevated Temperatures. UCRL-ID-
146579. Livermore, California: Lawrence Livermore National Laboratory. TIC: 
253211. 
Lowry, W.E. 2001. Engineered Barrier Systems Thermal-Hydraulic-Chemical 157900
Column Test Report. TDR-EBS-MD-000018 REV 00. Las Vegas, Nevada: 
Bechtel SAIC Company. ACC: MOL.20020102.0206. 
Majer, E.L. and McEvilly, T.V. 1985. Acoustic Emission and Wave Propagation 159101
Monitoring at the Spent Fuel Test: Climax, Nevada. International Journal of Rock 
Mechanics and Mining Sciences and Geomechanics Abstracts, 22, (4), 215-226. 
New York, New York: Elsevier. TIC: 222776. 
Mitchell, A. 1996. Borehole Videos from the Exploratory Studies Facility Thermal 159518
Testing Facility-Thermomechanical Alcove. Memorandum from A. Mitchell 
(LANL) to Distribution, May 21, 1996, LA-EES-13-LV-05-96-021, with attachment 
ACC: MOL.19960711.0110. 
Pannell, G. 2001. Heat Loss White Paper for KTI KTE0201. E-mail from G. 159514
Pannell to C. Gardner, April 4, 2001, with attachment. ACC:
MOL.20010822.0143. 
Peterson, J.E. 1986. The Application of Algebraic Reconstruction Techniques to 101698
Geophysical Problems. LBL-21498. Berkeley, California: Lawrence Berkeley 
National Laboratory. TIC: 239765. 
Peterson, J.E., Jr. and Williams, K.H. 1998. Acoustic Emission/Seismic Wave 159102
Monitoring Baseline Data. Chapter 5 of ESF Drift Scale Test As-Built Data and 
Baseline Measurements (Hydrological, Radar, and Microseismic), Revision 1.0. 
Milestone SPY193M4. Berkeley, California: Lawrence Berkeley National 
Laboratory. ACC: MOL.19981016.0046. 
Peterson, J.E., Jr. and Williams, K.H. 1998. Pre-Heating Ground Penetrating Radar 159128
Baseline Data. Chapter 4 of ESF Drift Scale Test As-Built Data and Baseline 
Measurements (Hydrological, Radar, and Microseismic), Revision 1.0. Milestone 
SPY193M4. Berkeley, California: Lawrence Berkeley National Laboratory. ACC: 
MOL.19981016.0046. 
Peterson, J.E., Jr. and Williams, K.H. 1998. Radar Imaging at the Drift Scale 159120
Heater Test. Chapter 4 of First Quarter TDIF Submission for the Drift Scale Test
(Hydrological, Radar, Microseismic), Version 1.0. Milestone SP2770M4. Berkeley, 
California: Lawrence Berkeley National Laboratory. ACC: MOL.19980812.0239 

Roberts, J.J. and Lin, W. 1997. Electrical Properties of Partially Saturated 101710 
Topopah Spring Tuff: Water Distribution as a Function of Saturation. Water 
Resources Research, 33, (4), 577-587. Washington, D.C.: American Geophysical 
Union. TIC: 239736. 
Roberts, J.J. and Lin, W. 1995. Hydrological Property Measurements of Topopah 159100 
Spring Tuff. UCRL-ID-119033. Livermore, California: Lawrence Livermore 
National Laboratory. ACC: MOV.19980504.0004. 
Roberts, J.J. and Lin, W. 1995. Report on Laboratory Tests of Drying and Re-159048 
Wetting of Intact Rocks. UCRL-ID-121513. Livermore, California: Lawrence 
Livermore National Laboratory. ACC: MOL.19960404.0013. 
SNL (Sandia National Laboratories) 1997. Unconfined Compression Tests on 117471 
Specimens from the Drift Scale Test Area of the Exploratory Studies Facility at 
Yucca Mountain, Nevada. Albuquerque, New Mexico: Sandia National 
Laboratories. ACC: MOL.19971120.0014. 
SNL 1998. Laboratory Measurements of Thermal Conductivity as a Function of 118788 
Saturation State for Welded and Nonwelded Tuff Specimens. Albuquerque, New 
Mexico: Sandia National Laboratories. ACC: MOL.19980901.0177. 
Tsang, Y.W. and Cook, P. 1997. Ambient Characterization of the ESF Drift Scale 100646
Test Area by Field Air Permeability Measurements. Milestone SP9512M4. 
Berkeley, California: Lawrence Berkeley National Laboratory. ACC: 
MOL.19971201.0829. 
Tsang, Y.W. and Freifeld, B. 1998. Hydrological Baseline Measurements. 105774
Chapter 2 of ESF Drift Scale Test As-Built Data and Baseline Measurements 
(Hydrological, Radar, and Microseismic). Milestone SPY193M4, Rev. 1. 
Berkeley, California: Lawrence Berkeley National Laboratory. ACC: 
MOL.19981016.0046. 
Tsang, Y.W. and Freifeld, B. 1998. Hydrological Characterization Data. Chapter 159097
3 of ESF Drift Scale Test As-Built Data and Baseline Measurements (Hydrological, 
Radar, and Microseismic). Milestone SPY193M4, Rev. 1. Berkeley, California: 
Lawrence Berkeley National Laboratory. ACC: MOL.19981016.0046.. 
Waxman, M.H. and Thomas, E.C. 1974. Electrical Conductivities in Shaly Sands: 101736
I. The Relation Between Hydrocarbon Saturation and Resistivity Index; II. The 
Temperature Coefficient of Electrical Conductivity. Journal of Petroleum 
Technology, 26, 213-225. Dallas, Texas: Society of Petroleum Engineers. TIC: 
239699. 

Williams, K.H. and Peterson, J.E., Jr. 1998. Radar Imaging and Acoustic Emission 159121 
Monitoring: Second Quarter Progress. Chapter 4 of Second Quarter TDIF 
Submission for the Drift Scale Test (Hydrological, Radar, Microseismic), Version 
0.0. Milestone SP2790M4. Berkeley, California: Lawrence Berkeley National 
Laboratory. ACC: MOL.19980812.0240. 
Williams, K.H.; Majer, E.; and Peterson, J.E., Jr. 1998. Acoustic Emission 159104 
Monitoring/Seismic Wave Monitoring: First Quarter Data. Chapter 5 of First 
Quarter TDIF Submission for the Drift Scale Test (Hydrological, Radar, 
Microseismic), Version 1.0. Milestone SP2770M4. Berkeley, California: Lawrence 
Berkeley National Laboratory. ACC: MOL.19980812.0239. 
Williams, N.H. 2003. Contract No. DE-AC28-01RW1210  Transmittal of White 163765 
Paper, Effects of Neoprene on Water in the Drift Scale Test. Letter from N.H. 
Williams (BSC) to J.D. Ziegler (DOE/ORD), February 4, 2003, 0129035843, with 
enclosure. ACC: MOL.20030206.0211. 
8.2 CODES, STANDARDS, REGULATIONS, AND PROCEDURES 
033-YMP-QP-3.8, Rev. 1. Control of the Electronic Management of Information. Livermore, 
California: Lawrence Livermore National Laboratory. ACC: MOL.20020108.0169. 
AP-2.14Q, Rev. 3, ICN 1. Document Review. Washington, D.C.: U.S. Department of Energy, 
Office of Civilian Radioactive Waste Management. ACC: DOC.20030827.0018. 
AP-2.22Q, Rev. 1, ICN 1. Classification Analyses And Maintenance Of The Q-List. 
Washington, D.C.: U.S. Department of Energy, Office of Civilian Radioactive Waste 
Management. ACC: DOC.20040714.002. 
AP-2.27Q, Rev. 1, ICN 4. Planning for Science Activities. Washington, D.C.: U.S. Department 
of Energy, Office of Civilian Radioactive Waste Management. ACC: DOC.20040610.0006 
AP-3.15Q, Rev. 4, ICN 5. Managing Technical Product Inputs. Washington, D.C.: U.S. 
Department of Energy, Office of Civilian Radioactive Waste Management. ACC: 
DOC.20040812.0004. 
AP-6.1Q, Rev. 7, ICN 4. Document Control. Washington, DC: U.S. Department of Energy, 
Office of Civilian Radioactive Waste Management. ACC: DOC.20040915.0008. 
AP-7.5Q, Rev. 1, ICN 1. Establishing Deliverable Acceptance Criteria and Submitting and 
Reviewing Deliverables. Washington, D.C.: U.S. Department of Energy, Office of Civilian 
Radioactive Waste Management. ACC: DOC.20040524.0006. 
AP-17.1Q, Rev. 3, ICN 3. Records Management. Washington, D.C.: U.S. Department of 
Energy, Office of Civilian Radioactive Waste Management. ACC: DOC.20040915.0009. 

AP-SIII.1Q, Rev. 2. Scientific Notebooks. Washington, D.C.: U.S. Department of Energy, 
Office of Civilian Radioactive Waste Management. ACC: MOL.20021202.0026. 
AP-SIII.3Q, Rev. 2, ICN 1. Submittal And Incorporation Of Data To The Technical Data 
Management System. Washington, D.C.: U.S. Department of Energy, Office of Civilian 
Radioactive Waste Management. ACC: DOC.20040226.0001. 
AP-SIII.9Q, Rev. 1, ICN 7. Scientific Analyses. Washington, D.C.: U.S. Department of Energy, 
Office of Civilian Radioactive Waste Management. ACC: DOC.20040920.0001. 
AP-SV.1Q, Rev. 1, ICN 1. Control of the Electronic Management of Information. Washington, 
D.C.: U.S. Department of Energy, Office of Civilian Radioactive Waste Management. ACC: 
DOC.20040308.0001. 
ASTM D 4971-89. 1989. Standard Test Method for Determining the In Situ Modulus of 
Deformation of Rock Using the Diametrically Loaded 76-mm (3-in.) Borehole Jack. 
Philadelphia, Pennsylvania: American Society for Testing and Materials. TIC: 245311. 
LANL-YMP-QP-S5.01, Rev. 2. Electronic Information Management. Los Alamos, New 
Mexico: Los Alamos National Laboratory. ACC: MOL.20030421.0134. 
LP-3.11Q-BSC, Rev. 0, ICN 1. Technical Reports. Washington, D.C.: U.S. Department of 
Energy, Office of Civilian Radioactive Waste Management. ACC: DOC.20040915.0003. 
LP-SI.11Q-BSC, Rev. 0. Software Management. Washington, D.C.: U.S. Department of 
Energy, Office of Civilian Radioactive Waste Management. ACC: DOC.20040225.0007. 
NRC (U.S. Nuclear Regulatory Commission) 2003. Yucca Mountain Review Plan, Final Report. 
NUREG-1804, Rev. 2. Washington, D.C.: U.S. Nuclear Regulatory Commission, Office of 
Nuclear Material Safety and Safeguards. TIC: 254568. 
NWM-USGS-GCP-03, Rev. 4, Mod. 0. Uranium-Thorium Disequilibrium Studies. Denver, 
Colorado: U.S. Geological Survey. ACC: MOL.19990723.0011. 
NWM-USGS-GCP-12 Rev. 4, Mod. 1. Rb-Sr Isotope Geochemistry. Denver, Colorado: U.S. 
Geological Survey. ACC: MOL.19990825.0067. 
NWM-USGS-GP-32, Rev. 0. Underground Geologic Mapping. Denver, Colorado: U.S. 
Geological Survey. ACC: MOL.19941102.0023. 
TIP-AC-02, Rev. 0, CN 4. Solutions Analysis; Cations by Inductively Coupled Plasma Atomic 
Emission Spectroscopy (ICP/AES). Livermore, California: Lawrence Livermore National 
Laboratory. ACC: MOL.20020710.0282. 
TIP-AC-03, Rev. 0. Determination of Inorganic Anions by Ion Chromatography (EPA Method 
300.00). Livermore, California: Lawrence Livermore National Laboratory. ACC: 
MOL.20010315.0345. 

TIP-NF-33, Rev. 0. Collection and Field Analysis of Water Samples from Boreholes In the 
Exploratory Studies Facility. Livermore, California: Lawrence Livermore National Laboratory. 
ACC: MOL.20010110.0463. 
YMP-LBNL-QIP-6.1, Rev. 8, Mod. 0. Document Review. Berkeley, California: Lawrence 
Berkeley National Laboratory. ACC: 20021024.0322. 
YMP-LBNL-QIP-SV.0, Rev. 2, Mod. 1. Management of YMP-LBNL Electronic Data. 
Berkeley, California: Lawrence Berkeley National Laboratory. ACC: MOL.20020717.0319. 
YMP-LBNL-TIP/AFT-2.0, Rev. 1, Mod. 0. Determination of Moisture Content, Bulk Density, 
Porosity and Particle Density of Rock Samples. Berkeley, California: Lawrence Berkeley 
National Laboratory. ACC: MOL.20000170.0494. 
YMP-LBNL-TIP/TT-4.0, Rev. 1, Mod. 0. Acoustic Emission Monitoring/Seismic Wave 
Monitoring. Berkeley, California: Lawrence Berkeley National Laboratory. ACC: 
MOL.20000915.0170. 
YMP-LBNL-TIP/TT-7.0, Rev. 0, Mod. 0. Extraction and Analysis of the Stable Isotope 
Components of CO2 in Gas Samples. Berkeley, California: Lawrence Berkeley National 
Laboratory. ACC: MOL.19990205.0145. 
YMP-LBNL-TIP/TT-9.0, Rev. 0, Mod. 0. Hydrogen Isotope Analyses of Waters. Berkeley, 
California: Lawrence Berkeley National Laboratory. ACC: MOL.19990318.0083. 
YMP-LBNL-TIP/TT-10.0, Rev. 0, Mod. 0. Analysis of the Oxygen Isotopic Composition of 
Water Samples Using the Isoprep 18. Berkeley, California: Lawrence Berkeley National 
Laboratory. ACC: MOL.19990224.0638. 
8.3 SOURCE DATA, LISTED BY DATA TRACKING NUMBER 
GS010608315215.002. Uranium and Thorium Isotope Data for Waters Analyzed 156187 
Between January 18,1994 and September 14, 1996. Submittal date: 06/21/2001. 
GS010808312322.004. Uranium and Uranium Isotopic Data for Water Samples 156007
from Wells and Springs in the Yucca Mountain Vicinity Collected Between 
December 1996 and December 1997. Submittal date: 08/29/2001. 
GS010908315215.005. Strontium Isotope Ratios and Strontium Concentrations 169553
in Calcite Samples from the ESF Analyzed from May 25, 2000 to June 5, 2001. 
Submittal date: 09/12/2001. 
GS011108312322.008. Uranium Concentrations and 234U/238U Activity Ratios 159136
Analyzed between February 1, 1999, and August 1, 2001 for Drift-Scale Heater 
Test Water Collected between June 1998 and April 2001, and Pore Water 
Collected between March 1996 and April 1999. Submittal date: 12/19/2001. 

GS011108312322.009. Strontium Isotope Ratios and Strontium Concentrations 159137
in Water Samples from the Drift Scale Test Analyzed from March 16, 1999 to 
June 27, 2001. Submittal date: 02/07/2002. 
GS020808312272.004. Analysis of Water-Quality Samples for the Period from 166569 
July 1999 to July 2002. Submittal date: 09/18/2002. 
GS030408312272.002. Analysis of Water-Quality Samples for the Period from 165226
July 2002 to November 2002. Submittal date: 05/07/2003. 
GS030608312272.006. Anion Data from Leach Samples Collected in September 163842
2002 for the Chlorine-36 Validation Study. Submittal date: 06/17/2003.
GS040508312272.002. Strontium Isotope Ratios and Strontium Concentrations 169629
on Introduced Materials to the ESF Tunnel. Submittal date: 06/02/2004.
GS951108312271.006. Interpretations of Chemical and Isotopic Data from 169244
Boreholes in the Unsaturated Zone at Yucca Mountain Nevada. Submittal date: 
09/13/2001. 
GS960908315215.012. Strontium Isotope Ratios and Isotope Dilution Data for 169552
Strontium Analyzed 07/06/95 to 08/05/96. Submittal date: 04/10/1997.
GS970608314224.006. Provisional Results: Geotechnical Data for Alcove 5 158429
(DWFA), Main Drift of the ESF: Detailed Line Survey Data for the Heated Drift 
and Cross-Drift. Submittal date: 06/24/1997. 
GS990308315215.003. X-Ray Fluorescence Elemental Compositions of rock 145707
Core Samples from USW SD-9 and USW SD-12. Submittal date: 03/25/1999. 
GS990308315215.004. Strontium Isotope Ratios and Strontium Concentrations 145711
in Rock Core Samples and Leachates from USW SD-9 and USW SD-12. 
Submittal date: 03/25/1999. 
LA0002FH6001WP.001. Single Heater Test - Raw Data. Submittal date: 158278
02/25/2000. 
LA0009SL831151.001. Fracture Mineralogy of the ESF Single Heater Test 153485
Block, Alcove 5. Submittal date: 09/28/2000. 
LA0106FH831151.002. Large Block Test Data. Submittal date: 06/06/2001. 158230
LA0106FH831151.003. Large Block Temperature Data. Submittal date: 158229
06/06/2001. 
LA0108FH831151.001. Drift Scale Test (DST), Distribution Data Sets: 158316
Scientific Notebook SN-LANL-SCI-209-V1. Submittal date: 08/23/2001.

LA0111FH831151.001. Rapid Evaluation of K and Alpha (REKA) in the Drift 169386 
Scale Test (DST), Distribution Data Sets. Submittal date: 11/06/2001. 
LA0111FH831151.002. Drift Scale Test (DST), Raw Data Sets. Submittal date: 158317 
11/06/2001. 
LA0111FH831151.003. Drift Scale Test (DST), All (Hourly) Data Points. 
158318 
Submittal date: 11/06/2001. 
LA0201SL831225.001. Chemical, Textural, and Mineralogical Characteristics of 158426
Sidewall Samples from the Drift Scale Test. Submittal date: 01/10/2002. 
LA0208FH831151.001. DST DCS Raw Data (All) Includes SNO5 Raw. 159515
Submittal date: 08/08/2002. 
LA0208FH831151.002. ESF Drift Scale Test, ESF DCS Data TCO Hourly. 159308
Submittal date: 08/08/2002. 
LA0303WS831151.001. Amorphous Silica in Drift Scale Test Sidewall Samples. 169378
Submittal date: 04/09/2003. 
LA9908FH6001WP.001. Drift Scale Test-Raw Data. Submittal date: 158319
08/31/1999. 
LA9912SL831151.002. Percent Coverage by Fracture-Coating Minerals in Core 146449
ESF-HD-TEMP-2. Submittal date: 01/05/2000. 
LARO831422AQ97.002. Exploratory Studies Facility Test Coordination Office 158431
Notebook #2 for Borehole Wireline Measurements. Submittal date: 08/27/1999. 
LB000121123142.002. Active Hydrology Testing Data (Air Injection) Collected 158337
from 12 Hydrology Holes of the ESF Drift Scale Test for the Period June 1, 1999 
through October 31, 1999. Submittal date: 01/21/2000. 
LB000121123142.003. Isotope Data for CO2 Gas Samples Collected From the 146451
Hydrology Holes of the ESF Drift Scale Test for the Period August 9, 1999 
through November 30, 1999. Submittal date: 01/21/2000. 
LB000121123142.004. Ground Penetrating Radar Data Collected from 158338
Boreholes of the ESF Drift Scale Test for the Period June 1, 1999 to October 31, 
1999. Submittal date: 01/21/2000. 
LB000121123142.005. Acoustic Emission Data Collected from Boreholes of the 158339
ESF Drift Scale Test for the Period December 21, 1998 through October 27, 
1999. Submittal date: 01/21/2000. 

LB000718123142.002. Active Hydrology Testing Data (Air Injection) Collected 158341
from 12 Hydrology Holes of the ESF Drift Scale Test for the Period November 1, 
1999 through May 31, 2000. Submittal date: 07/18/2000. 
LB000718123142.003. Isotope Data for CO2 Gas Samples Collected from the 158342
Hydrology Holes of the ESF Drift Scale Test for the Period April 18, 2000 
through April 19, 2000. Submittal date: 07/18/2000. 
LB000718123142.004. Ground Penetrating Radar Data Collected from
153354 
Boreholes of the ESF Drift Scale Test on April 13, 2000. Submittal date: 
07/18/2000. 
LB000718123142.005. Acoustic Emission Data Collected from Boreholes of the 158343
ESF Drift Scale Test for the Period October 27, 1999 through March 21, 2000. 
Submittal date: 07/18/2000. 
LB0011CO2DST08.001. Isotope Data for CO2 from Gas Samples Collected 153460
from Hydrology Holes in Drift-Scale Test. Submittal date: 12/09/2000. 
LB0101ACEMDST1.001. Acoustic Emission Data Collected from Boreholes of 158344
the ESF Drift Scale Test for 04/13/00-07/02/00. Submittal date: 01/19/2001. 
LB0101AIRKDST1.001. Active Air K Testing Data Collected from 12 158345
Hydrology Holes of the ESF Drift Scale Test for 7/24/00-7/28/00 and 10/18/00-
10/27/00. Submittal date: 01/19/2001. 
LB0101GPRDST01.001. GPR Data Collected from Boreholes of the ESF Drift 158346
Scale Test on September 27-28, 2000. Submittal date: 01/19/2001. 
LB0102CO2DST98.001. Concentration Data for CO2 from Gas Samples 159306
Collected from Hydrology Holes in Drift-scale Test. Submittal date: 02/28/2001. 
LB0108ACEMDST5.001. Drift Scale Test Acoustic Emission Data. Submittal 158437
date: 10/29/2001. 
LB0108AIRKDST5.001. Active Air-K Testing. Submittal date: 08/27/2001. 158438
LB0108CO2DST05.001. Concentration and Isotope Data for CO2 and H2O from 156888
Gas Samples Collected from Hydrology Holes in Drift-Scale Test - May and 
August 1999, April 2000, January and April 2001. Submittal date: 08/27/2001. 
LB0108GPRDST05.001. Drift Scale Test Ground Penetrating Radar Data for 158440
February 2001. Submittal date: 08/27/2001. 
LB0203AIRKDSTE.001. Active Air-K Testing, Sept. 2001 - Jan. 2002. 158348
Submittal date: 03/13/2002. 

LB0203CO2DSTEH.001. Concentration/Isotope Data for CO2/H2O from Gas 158349
Samples Collected from Hydrology Holes in DST up to End of Heating. 
Submittal date: 03/13/2002. 
LB0203GPRDSTEH.001. Drift Scale Test Ground Penetrating Radar Data for 158350 
June 2001 - Jan. 2002, Prior to End of Heating. Submittal date: 03/13/2002. 
LB0204SHAIRK3Q.001. Single Heater Test Air-K (March-May 97). Submittal 159543 
date: 04/16/2002. 
LB0206C14DSTEH.001. Carbon 14 Isotope Data from CO2 Gas Samples 159303 
Collected from DST. Submittal date: 06/17/2002. 
LB0211DSTRBRDG.001. DST Packer Materials Investigation. Submittal date: 170566 
11/11/2002. 
LB0302NEOPDGRD.001. Neoprene Degradation Experiments. Submittal date: 170567 
02/23/2003. 
LB0401PRTDSTCP.001. Passive Monitoring Data (Temperature and Pressure) 170568 
for the Drift Scale Test (01/15/2002-06/30/2002). Submittal date: 01/29/2004. 
LB0401PRTDSTCP.002. Passive Monitoring Data (Temperature and Pressure) 170569 
for the Drift Scale Test (07/01/2002-12/31/2002). Submittal date: 01/29/2004. 
LB0401PRTDSTHP.001. Passive Monitoring Data (Temperature and Pressure) 169251 
for the Drift Scale Test (11/01/1997-02/28/1998). Submittal date: 01/29/2004. 
LB0401PRTDSTHP.002. Passive Monitoring Data (Temperature and Pressure) 169252 
for the Drift Scale Test (03/01/1998-05/31/1998). Submittal date: 01/29/2004. 
LB0401PRTDSTHP.003. Passive Monitoring Data (Temperature and Pressure) 169253 
for the Drift Scale Test (06/01/1998-08/31/1998). Submittal date: 01/29/2004. 
LB0401PRTDSTHP.004. Passive Monitoring Data (Temperature and Pressure) 169255 
for the Drift Scale Test (09/01/1998-05/31/1999). Submittal date: 01/29/2004. 
LB0401PRTDSTHP.005. Passive Monitoring Data (Temperature and Pressure) 169246 
for the Drift Scale Test (06/01/1999-10/31/1999). Submittal date: 01/29/2004. 
LB0401PRTDSTHP.006. Passive Monitoring Data (Temperature and Pressure) 169247 
for the Drift Scale Test (11/01/1999-05/31/2000). Submittal date: 01/29/2004. 
LB0401PRTDSTHP.007. Passive Monitoring Data (Temperature and Pressure) 169248 
for the Drift Scale Test (06/01/2000-11/30/2000). Submittal date: 01/29/2004. 
LB0401PRTDSTHP.008. Passive Monitoring Data (Temperature and Pressure) 169249 
for the Drift Scale Test (12/01/2000-05/31/2001). Submittal date: 01/29/2004. 

LB0401PRTDSTHP.009. Passive Monitoring Data (Temperature and Pressure) 169250
for the Drift Scale Test (06/01/2001-01/14/2002). Submittal date: 01/29/2004. 
LB0404ISODSTHP.003. Third Submittal of CO2/H2O Isotope Data for the 169254
Heating Phase of the DST. Submittal date: 04/15/2004. 
LB960500834244.001. Hydrological Characterization of the Single Heater Test 105587
Area in ESF. Submittal date: 08/23/1996. 
LB970100123142.001. Air Injections in Boreholes #16 and #18 in the Single 158287
Heater Test Area. Submittal date: 01/17/1997. 
LB970500123142.001. Air Injection Data in Boreholes #16 and #18 in the Single 158293
Heater Test Area. Submittal date: 05/23/1997. 
LB970500123142.003. Laboratory Test Results of Hydrological Properties from 131500
Dry Drilled and Wet Drilled Cores in the Drift Scale Test Area and in the Single 
Heater Test Area of the Thermal Test Facility. Submittal date: 05/30/1997. 
LB970600123142.001. Ambient Characterization of the ESF Drift Scale Test 105589
Area by Field Air Permeability Measurements. Submittal date: 06/13/1997. 
LB970700123142.002. Third Quarter IR Pictures of the Single Heater Test Area. 158295
Submittal date: 07/17/1997. 
LB971000123142.001. Air Injections in Boreholes #16 and #18 in the Single 118965
Heater Test Area. Submittal date: 10/17/1997. 
LB980120123142.001. First Quarter FY98 IR Pictures of the Single Heater Test 158297
Area. Submittal date: 01/20/1998. 
LB980120123142.004. Air Injections in Boreholes 57 through 61, 74 through 78, 105590
185 and 186 in the Drift Scale Test Area. Submittal date: 01/20/1998. 
LB980120123142.005. Hydrological Characterization by Air Injections Tests in 114134
Boreholes in Heated Drift in DST. Submittal date: 01/20/1998. 
LB980120123142.007. Data Represents the Measurement of Discrete Acoustic 158352
Energy of the Rock Measured Prior to Turning on the Heaters in the SHT. 
Submittal date: 01/20/1998. 
LB980120123142.008. Data from Letter Report on First Quarter Results of 158280
Measurements in Hydrology Holes in the Single Heater Test Area, FY1998.. 
Submittal date: 05/28/1999. 

LB980420123142.002. Active Hydrology Testing Data in Boreholes 57-61, 74-113706
78, and 185-186; Air Injection Tests and Gas Tracer Tests. Submittal date: 
04/20/1998. 
LB980420123142.004. Acoustic Emission Data (Recorded Events and 
113717 
Calibration Files). Submittal date: 04/20/1998. 
LB980420123142.005. Isotope Data for CO2 from Gas Samples Collected from 111471 
Drift Scale Test February 1998 in First Quarter TDIF Submission for the Drift 
Scale Test. Submittal date: 11/12/1998. 
LB980715123142.002. Active Hydrology Testing Data in Boreholes 57-61, 74-113742 
78, and 185-186; Air Injection Tests and Gas Tracer Tests in 2ND Quarter TDIF 
Submission of the Drift Scale Test Heating Phase. Submittal date: 07/15/1998. 
LB980715123142.003. Isotope Data for CO2 from Gas Samples Collected from 111472 
Drift Scale Test June 4, 1998 in 2nd Quarter TDIF Submission of the Drift Scale 
Test Heating Phase. Submittal date: 07/15/1998. 
LB980901123142.001. Active Hydrology Testing Data in Boreholes 16 and 18. 118999 
Submittal date: 08/26/1998. 
LB980901123142.002. Passive Monitoring Data (Temperature, Relative 119009 
Humidity, and Gauge Pressure) for the Final TDIF Submittal for the Single 
Heater Test. Submittal date: 08/26/1998. 
LB980901123142.003. Ground Penetrating Radar Data for Final TDIF Submittal 119016 
for the Single Heater Test. Submittal date: 08/26/1998. 
LB980901123142.006. Laboratory Test Results of Hydrological Properties from 119029Post-Test Dry-Drilled Cores in the Single Heater Test Area for the Final TDIF 
Submittal for the Single Heater Test. Submittal date: 08/31/1998. 
LB980912332245.002. Gas Tracer Data from Niche 3107 of the ESF. Submittal 105593 
date: 09/30/98. 
LB981016123142.002. Active Hydrology Testing Data (Air Injection) from 129245 
Boreholes 57-61, 74-78, 185-186 Taken from August 1998 to September 1998 for 
the Third Quarter TDIF Submission for the Drift Scale Test. Submittal date: 
10/16/1998. 
LB990630123142.001. Fourth, Fifth, and Sixth Quarters TDIF Submission for 129247 
the Drift Scale Test, September 1998 to May 1999. Submittal date: 06/30/1999. 
LB990630123142.003. Fourth, Fifth, and Sixth Quarters TDIF Submission for 111476 
the Drift Scale Test, September 1998 to May 1999. Submittal date: 06/30/1999. 

LB990630123142.005. Fourth, Fifth, and Sixth Quarters TDIF Submission for 129274
the Drift Scale Test, September 1998 to May 1999. Submittal date: 07/20/1999. 
LL000804023142.009. Liquid Saturation Tomographs for the ESF Drift Scale 158325
Test (DST) Determined from ERT Measurements. Submittal date: 08/04/2000. 
LL001100931031.008. Aqueous Chemistry of Water Sampled from Boreholes of 153288
the Drift Scale Test (DST). Submittal date: 11/10/2000. 
LL001200231031.009. Aqueous Chemistry of Water Sampled from Boreholes of 153616
the Drift Scale Test (DST). Submittal date: 12/04/2000. 
LL020302223142.015. Aqueous Geochemistry of DST Samples Collected from 159134
HYD Boreholes. Submittal date: 03/07/2002. 
LL020405123142.019. Aqueous Geochemistry of Condensed Fluids Collected 159307
During Studies of Introduced Materials. Submittal date: 05/22/2002. 
LL020502523142.020. Electrical Properties of Topopah Spring Tuff as a 159105
Function of Saturation and Temperature. Submittal date: 07/05/2002. 
LL020506123142.021. Moisture Retention Curves at Elevated Temperatures. 169256
Submittal date: 08/30/2002. 
LL020710223142.024. Moisture Content of Rock from Neutron Logging 159551
Activities in the Drift Scale Test (DST): August 1997 through May 2002. 
Submittal date: 08/20/2002. 
LL021107623121.014. Aqueous Geochemistry of DST Samples Collected 169257
Between April 20, 1999 and January 25, 2000. Submittal date: 12/03/2002. 
LL030107523142.031. Anion Concentrations of Two DST Samples Collected 169258
Between June 4, 1998 and March 30, 1999. Submittal date: 01/28/2003.
LL030305023121.023. Aqueous Geochemistry of DST Water Samples Collected 170570
in February and March of 2002 from Borehole 75, Zone 2 (BH 75-2). Submittal 
date: 03/12/2003. 
LL030310023121.024. Chemical Composition of Water Samples Collected from 170571
Hyd Boreholes of the Drift Scale Test (DST). Submittal date: 03/24/2003.
LL030605512251.064. Thermogravimetric Analysis (TGA) Data on the Thermal 170572
Decomposition of Fluoroelastomer (Fkm) Samples Taken from Bh-60 and Bh-72 
of the Drift Scale Test at Yucca Mountain. Submittal date: 06/12/2003. 
LL950812704242.017. Report on Laboratory Tests of Drying and Re-Wetting of 158237
Intact Rocks. Submittal date: 08/07/1995. 

LL960400404244.012. Fracture Mapping of the East Side of the Large Block 158271 
Test. Submittal date: 04/01/1996. 
LL960400504244.013. Fracture Mapping of the South Side of the Large Block 158274 
Test. Submittal date: 04/01/1996. 
LL960400604244.014. Fracture Mapping of the West Side of the Large Block 158275 
Test. Submittal date: 04/01/1996. 
LL960400704244.015. Fracture Mapping of the North Side of the Large Block 158276 
Test. Submittal date: 04/01/1996. 
LL960905204244.022. Permeability Measurements on an Intact Core Sample 158244 
from the Large Block Test. Submittal date: 09/24/1996. 
LL970101004244.026. First Quarter Results of ERT Measurements in the Single 158281 
Heater Test. Submittal date: 01/08/1997. 
LL970101104244.027. First Quarter Results of Chemical Measurements in the 158309 
Single Heater Test. Submittal date: 01/08/1997. 
LL970409604244.030. Second Quarter Results of Chemical Measurements in the 111481 
Single Heater Test. Submittal date: 04/17/1997. 
LL970505404244.031. Second and Third Quarter Results of ERT Measurements 148609 
for Single Heater Test. Submittal date: 05/23/1997. 
LL970703904244.034. Third Quarter Results of Chemical Measurements in the 111482 
Single Heater Test. Submittal date: 07/15/1997. 
LL970803404244.040. Data on Moisture Content in the Large Block Test (LBT). 113889 
Submittal date: 08/08/1997. 
LL970805504244.043. XYZ of Instruments in Single Heater Test (SHT) in RTD 158313
Holes 15, 17, 22, and 23; Packer Holes 16 and 18; Chemistry Holes 20 and 21. 
Submittal date: 08/14/1997. 
LL971002904244.044. Fourth Quarter FY97 Results of ERT Measurements in 158286 
the Single Heater Test. Submittal date: 10/13/1997. 
LL971006604244.046. Fourth Quarter FY97 Results of Chemical Measurements 148611 
in the Single Heater Test (SHT). Submittal date: 10/21/1997. 
LL971204304244.047. Neutron Logging Activities at the Large Block Test 113894 
(LBT). Submittal date: 12/08/1997. 
LL980105204244.049. First Quarter FY98 Results of ERT Measurements in the 148610 
Single Heater Test. Submittal date: 01/13/1998. 

LL980106904244.051. First Quarter FY98 Results of the Neutron Logging 118963 
Report. Submittal date: 01/16/1998. 
LL980108804244.052. Electrical Resistivity Tomography (ERT) Monitoring of 158332 
the Drift Scale Test. Submittal date: 01/22/1998. 
LL980109904243.015. Fourth Quarter FY 1997 and First Quarter FY 1998 Data 158299 
on the O-MPBX at the Single Heater Test (SHT). Submittal date: 01/26/1998. 
LL980406404244.057. First and Second Quarter FY98 Results of ERT 113782 
Measurements in the Drift Scale Test. Submittal date: 04/14/1998. 
LL980411004244.060. DST Baseline REKA Probe Measurements. Submittal 159107 
date: 04/24/1998. 
LL980411104244.061. DST Baseline REKA Probe Measurements for Thermal 159111 
Conductivity and Diffusivity. Submittal date: 04/24/1998. 
LL980808604244.065. Second Quarter FY98 Results of ERT Measurements in 113791 
the Drift Scale Test. Submittal date: 08/21/1998. 
LL980902104244.070. DST Baseline REKA Probe Measurements for Thermal 159109 
Conductivity and Diffusivity. Submittal date: 09/03/1998. 
LL980913304244.072. Data Submission Report for Electrical Resistance 145385 
Tomography Results Obtained During the Large Block Test FY98. Submittal 
date: 09/24/1998. 
LL980918904244.074. Temperature, Relative Humidity and Gas Pressure 135872 
Results During the Large Block Test FY 98. Submittal date: 09/29/1998. 
LL980919304244.075. Neutron Logging Activities at the Large Block Test 145099 
(LBT). Submittal date: 09/30/1998. 
LL980919404244.076. Measurement of the Sensor Displacement While Heating 148630 
the Large Block at the Large Block Test FY98. Submittal date: 09/30/1998. 
LL981001604244.079. The Imaging of the Resistivity Distribution Between Two 158261 
Boreholes using an Automatic Data Collection and Switching System. Submittal 
date: 10/05/1998. 
LL981109904242.072. Electrical Properties of Tuff from the ESF as a Function 118959 
of Water Saturation and Temperature. Submittal date: 11/19/1998. 
LL981110704244.085. Large Block Test Report, Chapter 4, Instrumentation and 169259 
Monitoring. Submittal date: 11/20/1998. 

LL981202305912.004. Investigation of Bacterial Transport in the Large Block 158270
Test, a Thermally Perturbed Block of Topopah Spring Tuff. Submittal date: 
12/03/1998. 
LL981208404244.092. X-Ray Radiography of Fracture Flow and Matrix 
158263 
Imbibition in Topopah Spring Tuff Under a Thermal Gradient. Submittal date: 
12/08/1998. 
LL990702704244.099. Data for the Drift Scale Test. Submittal date: 
113872 
07/13/1999. 
LL990702804244.100. Borehole and Pore Water Data. Submittal date: 144922
07/13/1999. 
MO0001SEPDSTPC.000. Drift Scale Test (DST) Temperature, Power, Current, 153836
and Voltage Data for June 1, 1999 through October 31, 1999. Submittal date: 
01/12/2000. 
MO0002ABBLSLDS.000. As-Built Borehole Locations and Sensor Locations 147304
for the Drift Scale Test Given in Local (DST) Coordinates. Submittal date: 
02/01/2000. 
MO0005PORWATER.000. Perm-Sample Pore Water Data. Submittal date: 150930
05/04/2000. 
MO0007SEPDSTPC.001. Drift Scale Test (DST) Temperature, Power, Current, 153707
and Voltage Data for November 1, 1999 through May 31, 2000. Submittal date: 
07/13/2000. 
MO0012SEPDSTPC.002. Drift Scale Test (DST) Temperature, Power, Current, 153708
and Voltage Data for June 1, 2000 through November 30, 2000. Submittal date: 
12/19/2000. 
MO0101SEPFDDST.000. Field Measured Data of Water Samples from the Drift 153711
Scale Test. Submittal date: 01/03/2001. 
MO0107SEPDSTPC.003. Drift Scale Test (DST) Temperature, Power, Current, 158321
and Voltage Data for December 1, 2000 through May 31, 2001. Submittal date: 
07/06/2001. 
MO0202SEPDSTTV.001. Drift Scale Test (DST) Temperature, Power, Current, 158320
and Voltage Data for June 1, 2001 through January 14, 2002. Submittal date: 
02/28/2002. 
MO0207AL5WATER.001. Water Sampling in Alcove 5 (Results from 2/4/1997 159300
through 4/20/1999). Submittal date: 07/11/2002. 

MO9807DSTSET01.000. Drift Scale Test (DST) Temperature, Power, Current, 113644
Voltage Data for November 7, 1997 through May 31, 1998. Submittal date: 
07/09/1998. 
MO9810DSTSET02.000. Drift Scale Test (DST) Temperature, Power, Current, 113662
Voltage Data for June 1 through August 31, 1998. Submittal date: 10/09/1998. 
MO9906DSTSET03.000. Drift Scale Test (DST) Temperature, Power, Current, 113673
and Voltage Data for September 1, 1998 through May 31, 1999. Submittal date: 
06/08/1999. 
SN0001F3912298.014. Measurements of Displacement Data for the Drift Scale 153841
Test (with Results from 6/1/1999 through 10/31/1999). Submittal date: 
01/18/2000. 
SN0001F3912298.015. Measurements of Strain Data for the Drift Scale Test 158372
(with Results from 6/1/1999 through 10/31/1999). Submittal date: 01/18/2000. 
SN0001F3912298.016. Measurements of Displacement Data for the Drift Scale 153842
Test Corrected for Thermal Expansion (with Results from 6/1/1999 through 
10/31/1999). Submittal date: 01/18/2000. 
SN0001F3912298.017. Measurements of Strain Data for the Drift Scale Test 158373
Corrected for Thermal Expansion (with Results from 6/1/1999 through 
10/31/1999). Submittal date: 01/18/2000. 
SN0007F3912298.018. Measurements of Displacement Data for the Drift Scale 158374
Test (with Results from 11/1/1999 through 5/31/2000). Submittal date: 
07/17/2000. 
SN0007F3912298.019. Measurements of Strain Data for the Drift Scale Test 158387
(with Results from 11/1/1999 through 5/31/2000). Submittal date: 07/17/2000. 
SN0007F3912298.020. Measurements of Displacement Data for the Drift Scale 158388
Test Corrected for Thermal Expansion (with Results from 11/1/1999 through 
5/31/2000). Submittal date: 07/17/2000. 
SN0007F3912298.021. Measurements of Strain Data for the Drift Scale Test 158391
Corrected for Thermal Expansion (with Results from 11/1/1999 through 
5/31/2000). Submittal date: 07/17/2000. 
SN0011F3912298.022. Plate-Loading Measured Displacement and Test Pressure 158392
Data (with Results from 10/16/2000 through 10/17/2000). Submittal date: 
11/30/2000. 
SN0011F3912298.023. Plate-Loading Rock Mass Modulus Data (with Results 158399
from 10/16/2000 through 10/17/2000). Submittal date: 11/30/2000. 

SN0101F3912298.024. Measurements of Displacement Data for the Drift Scale 158400
Test (with Results from 6/1/2000 through 11/30/2000). Submittal date: 
01/18/2001. 
SN0101F3912298.025. Measurements of Strain Data for the Drift Scale Test 158401
(with Results from 6/1/2000 through 11/30/2000). Submittal date: 01/18/2001. 
SN0101F3912298.026. Measurements of Displacement Data for the Drift Scale 158402
Test Corrected for Thermal Expansion (with Results from 6/1/2000 through 
11/30/2000). Submittal date: 01/18/2001. 
SN0101F3912298.027. Measurements of Strain Data for the Drift Scale Test 158407
Corrected for Thermal Expansion (with Results from 6/1/2000 through 
11/30/2000). Submittal date: 01/18/2001. 
SN0107F3912298.029. Measurements of Displacement Data for the Drift Scale 158408
Test (with Results from 12/1/2000 through 5/31/2001). Submittal date: 
07/09/2001. 
SN0107F3912298.030. Measurements of Strain Data for the Drift Scale Test 158409
(with Results from 12/1/2000 through 5/31/2001). Submittal date: 07/09/2001. 
SN0107F3912298.031. Measurements of Displacement Data for the Drift Scale 158413
Test Corrected for Thermal Expansion (with Results from 12/1/2000 through 
5/31/2001). Submittal date: 07/09/2001. 
SN0107F3912298.032. Measurements of Strain Data for the Drift Scale Test 158414
Corrected for Thermal Expansion (with Results from 12/1/2000 through 
5/31/2001). Submittal date: 07/09/2001. 
SN0203F3903102.001. Drift Scale Test Water Sampling (with Results from 159133
4/17/2001 through 1/14/2002). Submittal date: 03/29/2002. 
SN0203F3912298.033. Measurements of Displacement Data for the Drift Scale 158361
Test (with Results from 6/1/2001 through 1/14/2002). Submittal date: 
03/26/2002. 
SN0203F3912298.034. Measurements of Strain Data for the Drift Scale Test 158362
(with Results from 6/1/2001 through 1/14/2002). Submittal date: 03/26/2002. 
SN0203F3912298.035. Measurements of Displacement Data for the Drift Scale 158363
Test Corrected for Thermal Expansion (with Results from 6/1/2001 through 
1/14/2002). Submittal date: 03/26/2002. 
SN0203F3912298.036. Measurements of Strain Data for the Drift Scale Test 158364
Corrected for Thermal Expansion (with Results from 6/1/2001 through 
1/14/2002). Submittal date: 03/26/2002. 

SN0203L2210196.007. Thermal Expansion and Thermal Conductivity of Test 158322
Specimens from the Drift Scale Test Area of the Exploratory Studies Facility at 
Yucca Mountain, Nevada. VA Supporting Data. Submittal date: 03/06/2002. 
SN0210F3903102.004. Drift Scale Test Water Sampling (Results from 1/16/2002 170573
through 4/4/2002). Submittal date: 10/22/2002. 
SN0211F3903102.005. Drift Scale Test Water Sampling (Results from 4/25/2002 170574
through 8/28/2002). Submittal date: 12/06/2002.
SN0401F3511695.012. Evaluation and Comparative Analysis of Single Heater 169262
Test Thermal and Thermomechanical Data: First Quarter FY98 Results (8/26/96 
through 11/30/97), Revised January 2004. Submittal date: 01/08/2004. 
SN0401F3511695.013. Thermal and Thermomechanical Data for the Single 169263
Heater Test Final Report, Revised January 2004. Submittal date: 01/08/2004. 
SNF35110695001.001. Single Heater Test: As-Built Gage Layouts 158315
(Thermocouples, Thermistors, MPBX's). Submittal date: 09/25/1996. 
SNF35110695001.010. Goodman Jack Measurements in the Single Heater Test 158300
Block. Submittal date: 05/25/1999. 
SNF38040197001.001. Heated Drift Test: SNL As-Built Gauge Table 159130
(Thermomechanical Gauges Only). Submittal date: 01/06/1998. 
SNF39012298002.002. Measurements of Displacement Data for the Drift Scale 159114
Test (with Results from 11/1/1997 through 5/31/1998). Submittal date: 
07/09/1998. 
SNF39012298002.003. Measurements of Strain Data for the Drift Scale Test 158417
(with Results from 11/9/1997 through 5/31/1998). Submittal date: 09/24/1998. 
SNF39012298002.004. Measurements of Displacement Data for the Drift Scale 153837
Test Corrected for Thermal Expansion (Results from 11/9/1997 through 
5/31/1998). Submittal date: 09/24/1998. 
SNF39012298002.005. Measurements of Strain Data for the Drift Scale Test 158418
Corrected for Thermal Expansion (Results from 11/9/1997 through 5/31/1998). 
Submittal date: 09/24/1998. 
SNF39012298002.006. Measurements of Displacement Data for the Drift Scale 158419
Test (with Results from 6/1/1998 through 8/31/1998). Submittal date: 
10/08/1998. 
SNF39012298002.007. Measurements of Strain Data for the Drift Scale Test 158365
(with Results from 6/1/1998 through 8/31/1998). Submittal date: 10/08/1998. 

SNF39012298002.008. Measurements of Displacement Data for the Drift Scale 153839
Test Corrected for Thermal Expansion (Results from 6/1/1998 through 
8/31/1998). Submittal date: 10/08/1998. 
SNF39012298002.009. Measurements of Strain Data for the Drift Scale Test 158366
Corrected for Thermal Expansion (Results from 6/1/1998 through 8/31/1998). 
Submittal date: 10/08/1998. 
SNF39012298002.010. Measurements of Displacement Data for the Drift Scale 158367
Test (with Results from 9/1/1998 through 5/31/1999). Submittal date: 
06/28/1999. 
SNF39012298002.011. Measurements of Strain Data for the Drift Scale Test 158368
(with Results from 9/1/1998 through 5/31/1999). Submittal date: 06/28/1999. 
SNF39012298002.012. Measurements of Displacement Data for the Drift Scale 153840
Test Corrected for Thermal Expansion (with Results from 9/1/1998 through 
5/31/1999). Submittal date: 06/28/1999. 
SNF39012298002.013. Measurements of Strain Data for the Drift Scale Test 158369
Corrected for Thermal Expansion (with Results from 9/1/1998 through 
5/31/1999). Submittal date: 06/28/1999. 
SNL02100196001.001. Unconfined Compression Tests on Specimens from the 158420
Drift Scale Test Area of the Exploratory Studies Facility at Yucca Mountain, 
Nevada. Submittal date: 05/14/1997. 
SNL22080196001.001. Thermal Properties of Test Specimens from the Single 109722
Heater Test Area in the Thermal Testing Facility at Yucca Mountain, Nevada. 
Submittal date: 08/15/1996. 
SNL22080196001.002. Unconfined Compression Tests on Specimens from the 158306
Single Heater Test Area in the Thermal Testing Facility at Yucca Mountain, 
Nevada. Submittal date: 08/22/1996. 
SNL22080196001.003. Posttest Laboratory Thermal and Mechanical 119042
Characterization for Single Heater Test (SHT) Block. Submittal date: 
08/26/1998. 
SNL22100196001.003. Thermal Expansion of Carbon Fiber and Invar Rods. 111068
Submittal date: 09/16/1997. 
SNL22100196001.006. Laboratory Measurements of Thermal Conductivity as a 158213
Function of Saturation State for Welded and Nonwelded Tuff Specimens. 
Submittal date: 06/08/1998. 

SNL23030598001.001. Unconfined Compression Tests on Cast-in-Place 158370 
Concrete Specimens from the Drift Scale Test in the ESP (Exploratory Studies 
Facility) at Yucca Mountain, Nevada. Submittal date: 03/10/1998. 
UN0106SPA013GD.003. Drift Scale Thermal Test (DST) REKA Probe 159115 
Acquired Data for Thermal Conductivity and Diffusivity for the Period 
05/01/1998 to 04/30/2001 (Heated Measurements for Boreholes 151, 152, and 
153). Submittal date: 06/13/2001. 
UN0106SPA013GD.004. Drift Scale Thermal Test (DST) REKA Probe 159116 
Developed Data for Thermal Conductivity and Diffusivity for the Period 
05/01/1998 to 04/30/2001 (Heated Measurements for Boreholes 151, 152, and 
153). Submittal date: 06/28/2001. 
UN0109SPA013GD.005. Drift Scale Test (DST) Rapid Evaluation of K and 159117 
Alpha (REKA) Probe Acquired Data for Thermal Conductivity and Diffusivity 
for the Period 05/01/2001 to 08/31/2001 (Heated Measurements for Boreholes 
151, 152, and 153). Submittal date: 09/28/2001. 
UN0112SPA013GD.006. DST REKA Probe Acquired Data for Thermal 159118 
Conductivity and Diffusivity for the Period 09/01/2001 to 12/31/2001 (Heated 
Measurements for Boreholes 151, 152, and 153). Submittal date: 12/31/2001. 
UN0201SPA013GD.007. DST REKA Probe Developed Data for Thermal 159119 
Conductivity and Diffusivity for the Period 05/01/2001 to 12/31/2001 (Heated 
Measurements for Boreholes 151 and 152). Submittal date: 01/07/2002. 
8.4 SUMMARY DATA, LISTED BY DATA TRACKING NUMBER 
LB0208ACEMDSTH.001. Acoustic Emission for the Heating Phase of the DST. 170575 
Submittal date: 08/09/2002. 
LB0208AIRKDSTH.001. Air Permeability Data for the Heating Phase of the 160897 
DST. Submittal date: 08/09/2002. 
LB0208AIRKSHTC.001. Air Permeability Data for the Heating and Cooling 170576 
Phases of the SHT. Submittal date: 08/12/2002. 
LB0208GPRDSTHP.001. GPR for the Heating Phase of the DST. Submittal 170577 
date: 08/09/2002. 
LB0208GPRSHTCP.001. GPR for the Heating and Cooling Phases of the SHT. 170578 
Submittal date: 08/12/2002. 
LB0208H2ODSTHP.001. Passive Hydrological Data for the Heating Phase of 170579 
the DST. Submittal date: 08/09/2002. 

LL020709923142.023. Aqueous Geochemistry of Borehole Waters Collected in 161677 
the Heating Phase of the DST. Submittal date: 07/26/2002.
LL020710523142.025. Temperatures, Heater Powers, and Rock Displacements 164182 
of the Large Block Test. Submittal date: 09/10/2002. 
LL020801723142.028. Electrical Resistance Tomographs of the Drift Scale Test, 170580 
November 1997 through December 2001. Submittal date: 08/07/2002. 
LL020801823142.029. Electrical Resistance Tomographs of the Single Heater 170581 
Test, August 1996 through December 1997. Submittal date: 08/07/2002. 
MO0208RESTRDST.002. Restructured Drift Scale Test (DST) Heating Phase 161129 
Power and Temperature Data. Submittal date: 08/06/2002. 
MO0208RESTRSHT.002. Restructured Single Heater Test (SHT) Heating Phase 170582 
Power and Temperature Data. Submittal date: 08/06/2002. 
MO0406SEPDSTHP.000 Drift Scale Test (DST) Heating Phase Power and 170615 
Reference Temperature Data. Submittal date: 06/07/2004. 
MO0406SEPTVDST.000 Temperature and Volume Water Content for Drift 170616 
Scale Test (DST) Heating Phase for Boreholes 79 and 80. Submittal date: 
06/29/2004. 
SN0207F3912298.037. Summary of Smoothed Measurements of Displacement 162046 
Data for the Heating Phase of the Drift Scale Test (with Results from 12/3/1997 
through 1/14/2002). Submittal date: 07/15/2002.
SN0208F3903102.002. Summary of Thermal Test Water Samples and Field 161246 
Measurements through 1/14/2002. Submittal date: 08/16/2002. 
SN0208F3903102.003. Field Measurements and Fluoride Content from HF 170620 
(Hydrogen-Fluoride) Tests. Submittal date: 08/16/2002. 
SN0208F3912298.038. Summary of Smoothed Measurements of Strain Data for 170610 
the Heating Phase of the Drift Scale Test (with Results from 12/3/1997 through 
1/14/2002). Submittal date: 08/16/2002. 
SN0407F3912298.060. Rock Mass Thermal Expansion Coefficients from the 170627 
Drift Scale Test (DST) Compared with In Situ Measurements. Submittal date: 
07/13/2004. 

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