An In Situ Permeable

Reactive Barrier for the

Treatment of Hexavalent

Chromium and

Trichloroethylene in

Ground Water:

Volume 2

Performance Monitoring

United States

Environmental Protection

Agency

Office of Research and

Development

Washington DC 20460

EPA/600/R-99/095b

September 1999

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RIVER

CONTAMINANT PLUME

Groundwater

Flow direction

Source Zone

PERMEABLE

REACTIVE BARRIER

Well Cluster

Multilevel Bundle
EPA/600/R-99/095b

September 1999

An In Situ Permeable Reactive Barrier for

theTreatment of Hexavalent Chromium and

Trichloroethylene in Ground Water:

Volume 2

Performance Monitoring

David W. Blowes1

Robert W. Puls2

Robert W. Gillham1

Carol J. Ptacek1

Timothy A. Bennett1

Jeffrey G. Bain1

Christine J. Hanton-Fong1

Cynthia J. Paul2

1

Department of Earth Sciences

University of Waterloo

Waterloo, Ontario, Canada

2 Subsurface Protection and Remediation Division

National Risk Management Research Laboratory

U.S. Environmental Protection Agency

Ada, OK 74820

Cooperative Agreement No. CR-823017

Project Officer

Robert W. Puls

Subsurface Protection and Remediation Division

National Risk Management Research Laboratory

Ada, OK 74820

National Risk Management Research Laboratory

Office of Research and Development

U.S. Environmental Protection Agency

Cincinnati, OH 45268
ii

Notice

The U. S. Environmental Protection Agency through its Office of Research and

Development partially funded and collaborated in the research described here

under Cooperative Agreement No. CR-823017 to the University of Waterloo. It has

been subjected to the Agency's peer and administrative review and has been

approved for publication as an EPA document. Mention of trade names or commercial products does not constitute endorsement or recommendation for use.

All research projects making conclusions or recommendations based on

environmentally related measurements and funded by the Environmental Protection Agency are required to participate in the Agency Quality Assurance Program.

This project was conducted under an approved Quality Assurance Project Plan.

The procedures specified in this plan were used without exception. Information on

the plan and documentation of the quality assurance activities and results are

available from the Principal Investigator.
iii

Foreword

The U.S. Environmental Protection Agency is charged by Congress with

protecting the Nation’s land, air, and water resources. Under a mandate of national

environmental laws, the Agency strives to formulate and implement actions leading

to a compatible balance between human activities and the ability of natural systems

to support and nurture life. To meet these mandates, EPA’s research program is

providing data and technical support for solving environmental problems today and

building a science knowledge base necessary to manage our ecological resources

wisely, understand how pollutants affect our health, and prevent or reduce environmental risks in the future.

The National Risk Management Research Laboratory (NRMRL) is the Agency’s

center for investigation of technological and management approaches for reducing

risks from threats to human health and the environment. The focus of the

Laboratory’s research program is on methods for the prevention and control of

pollution to air, land, water, and subsurface resources; protection of water quality in

public water systems; remediation of contaminated sites and ground water; and

prevention and control of indoor air pollution. The goal of this research effort is to

catalyze development and implementation of innovative, cost-effective environmental technologies; develop scientific and engineering information needed by

EPA to support regulatory and policy decisions; and provide technical support and

information transfer to ensure effective implementation of environmental regulations and strategies.

Environmental scientists are generally familiar with the concept of barriers for

restricting the movement of contaminant plumes in ground water. Such barriers are

typically constructed of highly impermeable emplacements of materials such as

grouts, slurries, or sheet pilings to form a subsurface “wall.” The goal of such

installations is to eliminate the possibility that a contaminant plume can move

toward and endanger sensitive receptors such as drinking water wells or discharge

into surface waters. Permeable reactive barrier walls reverse this concept of

subsurface barriers. Rather than serving to constrain plume migration, permeable

reactive barriers (PRBs) are designed as preferential conduits for the contaminated

ground water flow. A permeable reactive subsurface barrier is an emplacement of

reactive materials where a contaminant plume must move through it as it flows,

typically under natural gradient, and treated water exits on the other side. The

purpose of this document is to provide detailed design, installation and performance monitoring data on a full-scale PRB application which successfully remediated

a mixed waste (chromate and chlorinated organic compounds) ground-water

plume. It was also the first full-scale installation of this technology to use a trencher

to install a continuous reactive wall to intercept a contaminant plume. The information will be of use to stakeholders such as implementors, state and federal

regulators, Native American tribes, consultants, contractors, and all other interested parties. There currently is no other site which has used this innovative

technology and reported on its performance to the extent detailed in this report. It

is hoped that this will prove to be a very valuable technical resource for all parties

with interest in the implementation of this innovative, passive, remedial technology.

Clinton W. Hall, Director

Subsurface Protection and Remediation Division

National Risk Management Research Laboratory
iv

Abstract

A 46 meter long, 7.3 meter deep and 0.6 meter wide reactive barrier was installed at the U.S. Coast Guard

Support Center (USCG) in Elizabeth City, North Carolina, in June 1996. The reactive barrier was designed to

remediate a hexavalent chromium [Cr(VI)] groundwater plume, in addition to treating portions of a larger and not yet

fully characterized trichloroethylene (TCE) groundwater plume at the site. The barrier is composed of Peerless Metal

and Abrasives of Detroit, Michigan (Peerless) granular iron and removes Cr(VI) and TCE from the groundwater via

processes of reduction and precipitation, and reductive-dechlorination, respectively.

In addition to nine large-screen compliance wells, a monitoring network of approximately 150 small-screen

sampling points was installed in November 1996 to provide detailed information on changes in porewater

geochemistry through the barrier. This network was sampled seven times between November 1996 and December

1998 at 3 to 6 month intervals: November 1996, February 1997, June 1997, September 1997, March 1998, June

1998 and December 1998.

Eh values decline from background values between 100 and 500 mV (vs. Standard Hydrogen Electrode, SHE)

to values as low as -580 mV SHE within the barrier. Groundwater pH values rise from background values between

6 and 8 to values as high as 11.74 within the barrier. These extreme Eh and pH conditions within the barrier have a

significant impact on the groundwater geochemistry. Concentrations of redox sensitive species such as sulphate

(SO4

) and nitrate (NO3) decline from background values of up to 140 mg/L and 5 mg/L to less than 20 mg/L and 0.05

mg/L, respectively. The decline of concentrations of Ca, Mg, Mn and alkalinity within the barrier may be the result of

Ca, Mg, Mn carbonate mineral precipitation. Geochemical calculations indicate that the water within the barrier

becomes supersaturated with respect to calcite [CaCO3], dolomite [CaMg(CO3)

2] and rhodochrosite (MnCO3

).

Low Eh and high pH values indicate that conditions are suitable for the reduction of Cr(VI), the precipitation of

Cr(III) oxyhydroxides and the reductive-dechlorination of TCE within the barrier. Sampling results indicate that

upgradient concentrations of up to 5.1 mg/L Cr are consistently reduced to less than the maximum contaminant level

(MCL) of <0.05 mg/L within the zero valent iron barrier. In addition, the upgradient concentration of TCE (up to

5,652 μg/L) is being reduced to close to or less than the maximum contaminant level (5 μg/L TCE) within the

permeable barrier. Cr(VI) concentrations of less than the MCL value were consistently maintained downgradient of

the barrier. TCE and cis-1,2DCE (cDCE) concentrations of less than MCL values were maintained downgradient of

the barrier for most of the sampling sessions.

High TCE concentrations (> MCL) were regularly measured in the deepest (7 m) downgradient monitoring points

and in two downgradient compliance wells, one located at the western extent of the barrier and one located beneath

the barrier. Due to the limited size of the barrier, this part of the TCE plume was not intercepted by the barrier. In the

February and June 1997 sessions, TCE breakthrough at 17 and 6.8 μg/L (respectively) was observed downgradient

of the barrier at one location, suggesting the presence of a zone of lower granular iron density or thickness. Although

there is localized breakthrough of TCE contaminated water, the results suggest that TCE and Cr(VI) contaminated

water that flows through the barrier is successfully treated to MCL values.

Vinyl chloride (VC) is also treated as the groundwater flows through the barrier. Occasionally VC concentrations

downgradient of the barrier concentrations exceed the MCL (2μg/L). This breakthrough of VC may result from

inadequate residence time within the barrier, possibly due to higher than anticipated groundwater velocities within

the barrier, or less iron thickness in the barrier than the design criteria.
v

Contents

Abstract ......................................................................................................................................... iv

List of Tables ................................................................................................................................. vi

List of Figures ............................................................................................................................... vii

List of Appendices ......................................................................................................................... x

List of Acronyms Used .................................................................................................................. xi

Introduction .................................................................................................................................... 1

Objectives ............................................................................................................................... 2

Background ................................................................................................................................... 2

Reactive Barriers .................................................................................................................... 2

Cr(VI) Reduction ..................................................................................................................... 2

TCE Reductive-Dechlorination ................................................................................................ 3

Iron Corrosion ......................................................................................................................... 3

Methodology .................................................................................................................................. 4

Monitoring Network Installation ............................................................................................... 4

Field Analysis .......................................................................................................................... 4

Sampling, Storage and Analysis ............................................................................................. 5

Ground Water Flow ................................................................................................................. 6

Methods of Interpretation ........................................................................................................ 6

Reactive-Transport Modeling ............................................................................................ 6

Geochemical Modeling ..................................................................................................... 6

Results and Discussion ................................................................................................................. 7

Hydrogeology ................................................................................................................................ 7

Conservative Ground Water Constituents ..................................................................................... 7

Redox and pH Conditions .............................................................................................................. 8

Major Ions ............................................................................................................................... 8

Iron Corrosion ................................................................................................................... 8

Cr(VI) Reduction ................................................................................................................... 10

Reductive-dechlorination of Chlorinated Aliphatics ............................................................... 11

TCE, cDCE and VC ........................................................................................................ 11

Reactive Transport Simulations ...................................................................................... 12

Dechlorination Products .................................................................................................. 12

Mineral Precipitation .............................................................................................................. 12

Other Impacts ....................................................................................................................... 14

Compliance Well Results ...................................................................................................... 14

Conclusions ................................................................................................................................. 15

References .................................................................................................................................. 17
vi

List of Tables

Table 1. Selected Physical Properties of the Granular Iron Used in the Reactive Barrier ......... 22

Table 2. First-order Surface Area Normalized Reaction Rates for Chlorinated

Aliphatics with PeerlessTM Granular Iron (from O’Hannesin et al., 1995;

Blowes et al., 2000) ..................................................................................................... 22

Table 3. Dissolved SO4 Concentrations and δ34S Values in Transects 1 and 3

(December 1998). ....................................................................................................... 22

Table 4. Concentration Trends for Cr, TCE, cDCE and VC over all Seven Sampling

Sessions at Transects 1 and 3 .................................................................................... 23

Table 5. Parameters Used in Ground-water Flow and FRAC3D Reactive-transport

Simulations .................................................................................................................. 27

Table 6. Simulated (FRAC3D) Travel Distance (cm) within the Barrier Before Contaminant

Concentration Falls Below Target Concentration ........................................................ 27

Table 7. Cr(VI) Concentration (mg/L) Trends Observed in Compliance Wells .......................... 27

Table 8. TCE Concentration (μg/L) Trends Observed in Compliance Wells ............................. 28

Table 9. VC Concentration (μg/L) Trends Observed in Compliance Wells................................ 28
vii

List of Figures

Figure 1. Location map showing U.S. Coast Guard Support Center, Elizabeth City,

North Carolina ............................................................................................................. 30

Figure 2. (A) Plan view and (B) cross-sectional view of reactive barrier .................................... 31

Figure 3. Orientation of monitoring wells with respect to barrier and groundwater

flow direction ............................................................................................................... 32

Figure 4. a) Reductive β-elimination, and (b) hydrogenolysis reaction steps in

degradation of TCE (after Arnold and Roberts, 1997). ................................................ 33

Figure 5. Plan view map showing compliance well, bundle and well cluster locations

relative to granular iron barrier and Cr plume (June 1994 data).................................. 34

Figure 6. Schematic of multilevel bundle .................................................................................... 35

Figure 7. (a) Schematic and (b) picture of organic sampling manifold developed

at the University of Waterloo. ...................................................................................... 36

Figure 8. (a) Distribution of hydraulic conductivity (m/d) in transect 2,

(b) 2D simulation domain and boundary conditions and (c) flow pathlines.................. 37

Figure 9. Sodium and chloride concentrations (mg/L) in (a) transect 1, (b) transect 2

and (c) transect 3 (November 1996 (Day 150) - 0.45 μm filtered samples) ................ 38

Figure 10.Eh values (mV vs. SHE) in (a) transect 1, (b) transect 2 and (c) transect 3

(November 1996 and February 1997) ......................................................................... 38

Figure 11.Eh values (mV vs. SHE) in (a) transect 1, (b) transect 2 and (c) transect 3

(February 1997 and December 1998). ........................................................................ 39

Figure 12.pH values in (a) transect 1, (b) transect 2 and (c) transect 3 (November 1996

and February 1997). .................................................................................................... 39

Figure 13. pH values in (a) transect 1, (b) transect 2 and (c) transect 3

(February 1997 and December 1998). ........................................................................ 40

Figure 14.Ferrous and total iron concentrations (mg/L) in (a) transect 1, (b) transect 2

and (c) transect 3 (November 1996 (Day 150) - 0.45 μm filtered samples

for total iron). ............................................................................................................... 40

Figure 15.Ferrous and total iron concentrations (mg/L) in (a) transect 1, (b) transect 2

and (c) transect 3 (December 1998 (Day 900) - 0.45 μm filtered samples

for total iron). ............................................................................................................... 41

Figure 16.Saturation indices for a) ferrihydrite, b) goethite and c) Cr(OH)3

 (a) in transect 1

(December 1998 (Day 900)). ...................................................................................... 42

Figure 17.Saturation indices for a) ferrihydrite, b) goethite and c) Cr(OH)3

 (a) in transect 2

(December 1998 (Day 900)). ...................................................................................... 43

Figure 18.Saturation indices for a) ferrihydrite, b) goethite and c) Cr(OH)3 (a) in transect 3

(December 1998 (Day 900)). ...................................................................................... 44

Figure 19.Saturation indices for amakinite and siderite (d) in (a) transect 1, (b) transect 2

and (c) transect 3 (November 1996 (Day 150)). ......................................................... 45

Figure 20.Saturation indices for amakinite and siderite (d) in (a) transect 1, (b) transect 2

and (c) transect 3 (December 1998 (Day 900)) .......................................................... 45

Figure 21.(a) Dissolved oxygen, (b) nitrate and (c) sulfate concentrations (mg/L)

in transect 1 (November 1996 and February 1997) .................................................... 46

Figure 22.(a) Nitrate and (c) sulfate concentrations (mg/L) in transect 2

(November 1996 and February 1997) ......................................................................... 46
viii

Figure 23.(a) Dissolved oxygen, (b) nitrate and (c) sulfate concentrations (mg/L)

in transect 3 (November 1996 and February 1997) .................................................... 47

Figure 24.(a) Dissolved oxygen, (b) nitrate and (c) sulphate concentrations (mg/L)

in transect 1 (February 1997 and December 1998) .................................................... 47

Figure 25. (a) Nitrate and (c) sulphate concentrations (mg/L) in transect 2

(February 1997 and December 1998) ......................................................................... 48

Figure 26.(a) Dissolved oxygen, (b) nitrate and (c) sulfate concentrations (mg/L)

in transect 3 (February 1997 and December 1998). ................................................... 48

Figure 27.Saturation indices for ferrous monosulphide and mackinawite in (a) transect 1,

 (b) transect 2 and (c) transect 3 (November 1996 (Day 150)) ................................... 49

Figure 28.Cr(VI) concentrations in transverse cross-section through upgradient wells

ML11, 21 and 31 in (a) November 1996 (Day 150) and (b) February 1997 (Day 240) 49

Figure 29.Cr(VI) concentrations in transverse cross-section through upgradient wells

ML11, 21 and 31 in (a) February 1997 (Day 240) and (b) December 1998 (Day 900) 50

Figure 30.Hexavalent and total chromium concentrations (mg/L) in (a) transect 1,

transect 2 and (c) transect 3 (November 1996 (Day 150) - Total Cr results

from 0.45 μm filtered samples) .................................................................................... 50

Figure 31. Hexavalent and total chromium concentrations (mg/L) in (a) transect 1, transect 2

and (c) transect 3 (February 1997 (Day 240) - Total Cr results from

0.45 μm filtered samples) ............................................................................................ 51

Figure 32.Hexavalent and total chromium concentrations (mg/L) in (a) transect 1,

transect 2 and (c) transect 3 (December 1998 (Day 900) - Total Cr

results from 0.45 μm filtered samples) ........................................................................ 51

Figure 33.TCE concentrations in transverse cross-section through upgradient wells

ML11, 21 and 31 in (a) November 1996 (Day 150) and (b) February 1997 (Day 240) 52

Figure 34.cDCE concentrations in transverse cross-section through upgradient wells

ML11, 21 and 31 in (a) November 1996 (Day 150) and (b) February 1997 (Day 240) 52

Figure 35.VC concentrations in transverse cross-section through upgradient wells

ML11, 21 and 31 in (a) November 1996 (Day 150) and (b) February 1997 (Day 240) 53

Figure 36.TCE concentrations in transverse cross-section through upgradient wells

ML11, 21 and 31 in (a) February 1997 (Day 240) and (b) December 1998 (Day 900) 53

Figure 37.cDCE concentrations in transverse cross-section through upgradient wells

ML11, 21 and 31 in (a) February 1997 (Day 240) and (b) December 1998 (Day 900) 54

Figure 38.VC concentrations in transverse cross-section through upgradient wells

ML11, 21 and 31 in (a) February 1997 (Day 240) and (b) December 1998 (Day 900) 54

Figure 39.(a) TCE, (b) cDCE and (c) VC concentrations (μg/L) in transect 1,

November 1996 and February 1997 ........................................................................... 55

Figure 40.(a) TCE, (b) cDCE and (c) VC concentrations (μg/L) in transect 2,

November 1996 and February 1997 ........................................................................... 55

Figure 41.(a) TCE, (b) cDCE and (c) VC concentrations (μg/L) in transect 3,

November 1996 and February 1997 ........................................................................... 56

Figure 42.(a) TCE, (b) cDCE and (c) VC concentrations (μg/L) in transect 1,

February 1997 and December 1998 ........................................................................... 56

Figure 43.(a) TCE, (b) cDCE and (c) VC concentrations (μg/L) in transect 2,

February 1997 and December 1998 ........................................................................... 57

Figure 44.(a) TCE, (b) cDCE and (c) VC concentrations (μg/L) in transect 3,

February 1997 and December 1998 ........................................................................... 57
ix

Figure 45.Reactive transport simulations of the upper portion of the TCE plume

in transect 2 ................................................................................................................ 58

Figure 46.Ethene and ethane concentrations (μg/L) in (a) transect 1, (b) transect 2,

(c) transect 3 (November 1996 (Day 150)) ................................................................. 59

Figure 47. Ethene and ethane concentrations (μg/L) in (a) transect 1, (b) transect 2,

(c) transect 3 (December 1998 (Day 900)) ................................................................. 59

Figure 48.Methane and TOC concentrations (mg/L) in (a) transect 1, (b) transect 2,

(c) transect 3 (November 1996 (Day 150)) ................................................................. 60

Figure 49.TOC concentrations (mg/L) in (a) transect 1, (b) transect 2, (c) transect 3

(February 1997 and December 1998) ......................................................................... 60

Figure 50.(a) Calcium, (b) magnesium and (c) manganese concentrations (mg/L)

in transect 1 (0.45 μm filtered samples, November 1996 and February 1997) ........... 61

Figure 51.(a) Calcium, (b) magnesium and (c) manganese concentrations (mg/L)

in transect 2 (0.45 μm filtered samples, November 1996 and February 1997) ........... 61

Figure 52.(a) Calcium, (b) magnesium and (c) manganese concentrations (mg/L)

in transect 3 (0.45 μm filtered samples, November 1996 and February 1997) ........... 62

Figure 53.(a) Calcium, (b) magnesium and (c) manganese concentrations (mg/L)

in transect 1 (0.45 μm filtered samples, February 1997 and December 1998) ........... 62

Figure 54.(a) Calcium, (b) magnesium and (c) manganese concentrations (mg/L)

in transect 2 (0.45 μm filtered samples, February 1997 and December 1998) ........... 63

Figure 55.(a) Calcium, (b) magnesium and (c) manganese concentrations (mg/L)

in transect 3 (0.45 μm filtered samples, February 1997 and December 1998) ........... 63

Figure 56.Alkalinity (mg/L CaCO3

) in (a) transect 1, (b) transect 2 and (c) transect 3

(November 1996 and February 1997) ......................................................................... 64

Figure 57.Alkalinity (mg/L CaCO3

) in (a) transect 1, (b) transect 2 and (c) transect 3

(February 1997 and December 1998) ......................................................................... 64

Figure 58.Saturation Indices for (a) calcite, (b) dolomite and (c) rhodochrosite

(transect 1 (November 1996 (Day 150)) ..................................................................... 65

Figure 59.Saturation Indices for (a) calcite, (b) dolomite and (c) rhodochrosite

(transect 2 (November 1996 (Day 150)) ..................................................................... 66

Figure 60.Saturation Indices for (a) calcite, (b) dolomite and (c) rhodochrosite

(transect 3 (November 1996 (Day 150)) ..................................................................... 67

Figure 61.Saturation Indices for (a) calcite, (b) dolomite and (c) rhodochrosite

(transect 1 (December 1998 (Day 900)) ..................................................................... 68

Figure 62.Saturation Indices for (a) calcite, (b) dolomite and (c) rhodochrosite

(transect 2 (December 1998 (Day 900)) ..................................................................... 69

Figure 63. Saturation Indices for (a) calcite, (b) dolomite and (c) rhodochrosite

(transect 3 (December 1998 (Day 900)) ..................................................................... 70

Figure 64.Electrical conductivity (μS/cm) in (a) transect 1 and (b) transect 3

(November 1996 and February 1997) ......................................................................... 71

Figure 65.Electrical conductivity (μS/cm) in (a) transect 1 and (b) transect 3

(February 1997 and December 1998) ......................................................................... 71

Figure 66.Comparison of observed and calculated electrical conductivity (μS/cm)

in (a) transect 1 and (b) transect 3 (November 1996 (Day 150)) ................................ 72
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List of Appendices

Appendix A Survey Locations of Sampling Wells ..................................................................... 74

Appendix B Field Analysis Results ........................................................................................... 77

Appendix C Lab Analysis Results (VOCs and Dissolved Gases) ............................................. 88

Appendix D Lab Analysis Results (Metals) ............................................................................. 103

Appendix E Lab Analysis Results (Anions) ............................................................................ 118

Appendix F Pump Test Data .................................................................................................. 125

Appendix G Saturation Index Calculations.............................................................................. 130

Appendix H List of Standard Operating Procedures ............................................................... 133

Appendix I Ground water sampling - Standard Operating Procedures ................................. 134

Appendix J Quality Assurance – Quality Control Narrative .................................................... 137
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List of Acronyms Used:

BLQ below limit of quantitation

cDCE cis-1,2dichloroethylene

DO dissolved oxygen

FID flame ionization detector

GC gas chromatograph

ICP inductively coupled plasma

I.D. inner diameter

MCL maximum contaminant level

ND non-detect

O.D. outer diameter

PVC polyvinyl chloride

QA/QC quality assurance/quality control

SEM scanning electron microscopy

SI saturation index

TCE trichloroethylene

TOC total organic carbon

U.S. EPA United States Environmental Protection Agency

UW University of Waterloo

VC vinyl chloride

VOA volatile organic analysis

VOC volatile organic compound

WDS wavelength dispersive spectroscopy

XPS X-ray photoelectron microscopy
1

Introduction

A permeable in situ subsurface reactive barrier was installed in June 1996, at the U.S. Coast Guard support center located

near Elizabeth City, NC (Figure 1), to treat ground water contaminated by Cr(VI) and TCE (Bennett, 1997; Blowes et al.,

2000). The primary goal of the barrier was to remediate a 35 m wide and 6.5 m deep Cr(VI) plume which extends northward

from an old chrome plating shop towards the Pasquotank River (Figure 2). In addition to remediating the Cr(VI) plume, the

barrier is intended to treat portions of a larger overlapping TCE plume. Cr concentrations in excess of 10 mg/L and TCE

concentrations in excess of 19,200 μg/L have been detected in the shallow aquifer since 1991 (Puls et al., 1994; Parsons

Engineering Science, 1993, 1994, 1995, 1997). These concentrations are orders of magnitude greater than the MCL for

these contaminants (0.05 mg/L Cr and 5 μg/L TCE).

The heterogeneous surficial aquifer at the site is composed of layers of fine sand mixed with varying amounts of silty clay,

which range between less than 0.3 m and greater than 3 m thick (Puls et al., 1994; Bennett, 1997). The aquifer is underlain

at approximately 20 m depth by dense clay of the Yorktown confining unit. The ground-water flow direction varies between

approximately N30°E and N10°W, with an average horizontal hydraulic gradient of between 0.0011 and 0.0033. Previous

studies provide a more detailed description of site geology and history (Parsons Engineering Science, 1993, 1995, 1997;

Puls et al., 1995; Bennett, 1997).

The barrier is a permeable subsurface wall composed of granular iron, installed in a 46 m long, 7.3 m deep and 0.6 m wide

trench oriented perpendicular to the direction of ground-water flow (Blowes et al., 2000). The mass of Peerless granular

iron deposited into the trench (280 tons) was less than the design estimate of 450 tons. Assuming the iron fills the trench

completely, the calculated average emplaced density is 1.69 g/cm3. This emplacement density is lower than the value

determined for laboratory column tests, which were the basis of the barrier design (Blowes et al., 2000). The higher

laboratory-measured bulk density of 2.72 g/cm3, suggests that the in situ porosity of the emplaced iron (porosity= η = 0.62)

is greater than observed in the laboratory (η = 0.43). Alternatively, the lower mass of iron deposited in the trench suggests

that the granular iron may not occupy the entire volume of the trench. The physical properties of the granular iron,

calculated from previous laboratory column experiments (Bennett, 1997; Blowes et al., 2000), are shown in Table 1.

The granular iron reduces Cr(VI) and reductively-dechlorinates TCE in the ground water that flows through the barrier. At an

emplaced density of 2.72 g/cm3, the 60 cm wide barrier was calculated to provide sufficient residence time to remove

Cr(VI) from the ground water and degrade TCE and chlorinated degradation products that are intercepted by the barrier to

less than MCL values (Bennett, 1997; Blowes et al., 2000). Patents held by the University of Waterloo cover the removal

of dissolved metals from ground water through the in situ precipitation of harmless, insoluble reduced metal phases in a

permeable reactive mixture placed in the path of the contaminated ground water (U.S. Patents 5,362,394 and 5,514,279).

A patent held by the University of Waterloo covers the in situ removal of dissolved halogenated organic contaminants from

water using zero valent iron installed in the pathway of the contaminated ground water (U.S. Patent 5,266,213).

The goal of this study was to determine changes in ground-water chemistry as the ground water flows through the reactive

barrier and to assess the effectiveness of the reactive barrier in reducing Cr(VI), TCE and degradation product

concentrations to less than their MCL values. Nine 10 ft (3.05 m) screened compliance wells were installed in the vicinity

of the barrier for long term monitoring of ground-water quality and for regulatory compliance. Five of these wells were

installed downgradient of the barrier to determine whether ground water directly downgradient, on either side of and beneath

the barrier meets the MCL values. A detailed monitoring network composed of three rows or transects of multilevel

samplers was also installed across the reactive barrier in November 1996 (Figure 3). This network was installed for

research purposes to provide a detailed description of ground-water geochemistry between the watertable and the bottom

of the barrier. The piezometer network was sampled seven times between November 1996 and December 1998, at 3 to 6

month intervals after barrier installation: November 1996, February 1997, June 1997, September 1997, March 1998, June

1998 and December 1998. Single well response tests were performed to assess the hydraulic conductivity within the

vicinity of the barrier. These results were used in conjunction with two-dimensional (2D) reactive-transport modeling to

assess the distribution and trends of ground-water contaminants and constituents. Ground-water samples were collected

and analyzed to determine the concentrations of the target contaminants Cr(VI), TCE, cDCE and VC. Ground-water
2

samples were also collected to define the overall ground-water geochemistry. Water chemistry data were interpreted with

the assistance of the geochemical speciation computer program, MINTEQA2 (Allison et al., 1990).

Objectives

The goals of the present study are to evaluate the in-situ hydraulic properties of the barrier and to determine if design

parameters were met. The collected data will provide evidence of the portion of the contaminant plume intercepted by the

barrier. Ground-water sampling several times a year, for several years will be used to determine the degree of removal of

the target contaminants TCE, cDCE, VC and Cr(VI) from the water, and for evaluating the long-term performance of the

barrier at removing the target contaminants.

Background

Reactive Barriers

Permeable in situ subsurface reactive barriers are a promising new technology that can be applied to treat ground water

contaminated by chromium (Blowes and Ptacek, 1992; Blowes et al., 1995a, 1995c, 1997; Puls et al., 1995), halogenated

organics (Gillham and O’Hannesin, 1992, 1994; O’Hannesin, 1993), gasoline derivatives (Bianchi-Mosquera et al., 1994),

dissolved nutrients (Robertson and Cherry, 1995; Baker et al., 1996) and acid mine drainage (Blowes et al., 1995b; Benner

et al., 1997; Waybrant et al., 1998; Benner et al., 1999). These barriers are composed of a permeable reactive material that

reacts with the contaminant in the ground water, reducing its concentration by physical or chemical processes. Processes

that can reduce the aqueous concentration of a ground-water constituent include adsorption, oxidation, reduction,

precipitation, chemical transformation or a combination of these processes. These subsurface reactive barriers are

installed into the flowpath of the contaminated ground-water plumes. The contaminated ground water is passively

remediated as it flows through the reactive barrier.

Cr(VI) Reduction

One of the principal contaminants at the U.S. Coast Guard Support Center (USCG), Elizabeth City, is Cr(VI). Cr(VI)

undergoes little adsorption or retardation in the saturated sediments at the Elizabeth City site and is found at concentrations up to 10 mg/L (Puls et al., 1994). These Cr(VI) concentrations are significantly greater than the MCL value of

0.05 mg/L.

The approach to removing the Cr(VI) from the ground water at the site is to reduce Cr(VI) to Cr(III) using zero-valent iron,

Fe0, as the reductant (eqn. 1).

8H+ + CrO4

2- + Fe0

 → Fe3+ + Cr3+ + 4H2O (1)

The reduction of Cr(VI) by Fe0 exhibit half-order kinetics with respect to Cr(VI) and H+ and is dependent on the surface-area

of Fe0 (Gould, 1982) as shown in eqn. 2

d Cr

dT

k Cr H A

VI

VI = − + 0.5 0.5

(2)

where A is the surface area of zero-valent iron (cm2/L) and the surface-area normalized rate constant k has a value of 5.45

x 10-5 L cm-2 min-1, or 3,270 L m-2 h-1.

Laboratory experiments indicate that the reduction of Cr(VI) to Cr(III) by granular iron is very rapid (Blowes and Ptacek,

1992; Powell et al., 1995; Blowes et al., 1997; Blowes et al., 2000). In treatability studies conducted using groundwater

from the Elizabeth City site, 12 mg/L Cr(VI) was reduced to less than the detection limit of 0.01 mg/L within tens of minutes

in batch experiments with Peerlessä granular iron (O’Hannesin et al., 1995; Blowes et al., 2000).

Once reduced by Fe0, Cr as Cr(III) forms sparingly soluble hydroxides in water (eqn. 3) which have a minimum solubility

between pH 7 and 10. Under these conditions, sparingly soluble Cr(III) hydroxide or mixed Fe(III)-Cr(III) hydroxides may

precipitate (Eary and Rai, 1988; Schwertmann, 1989; Puls et al., 1994; Powell et al., 1995; Blowes et al., 1997; Blowes et

al., 2000) limiting dissolved Cr(III) concentrations to less than the MCL value (Rai et al., 1987; Sass and Rai, 1987; Blowes

et al., 1997).

(x) Cr 3+ + (1-x) Fe3+ + 3H2O ⇔ (CrxFe1-x)(OH)3 + 3H+ (3)

The reduction of Cr(VI) by granular iron has also been demonstrated in small-scale field experiments (Puls et al., 1995) to

rapidly remove Cr from contaminated ground water.
3

TCE Reductive-Dechlorination

The other principal contaminant at the USCG site is TCE. The reductive-dechlorination of chlorinated aliphatics, such as

TCE, by Fe0

 is thermodynamically favored (Vogel et al., 1987). The reductive-dechlorination of TCE by Fe0 to non-toxic

hydrocarbon end products occurs by both reductive β-elimination and sequential hydrogenolysis (Roberts et al., 1996;

Arnold and Roberts, 1997). The sequential hydrogenolysis pathway results in the production of toxic chlorinated

intermediates, such as cis-dichloroethylene (cDCE) and vinyl chloride (VC) (Figure 4). However, less than 10-20% of the

TCE mass degrades via this pathway producing cDCE and VC byproducts (Orth and Gillham, 1996), and these byproducts

are themselves reductively-dechlorinated by Fe0. The major end products of reductive-chlorination of TCE are ethene and

ethane. Ethene, ethane and lower concentrations of methane, propene, propane, 1-butene and butane end products have

been observed in previous laboratory experiments with granular iron (Orth and Gillham, 1996).

The reductive-dechlorination of TCE, cDCE and VC fits a pseudo first-order reaction mechanism. Johnson et al. (1996)

describe a pseudo first-order kinetic model for the dehalogenation of various chlorinated hydrocarbons by Fe0

:

− = d P

dt

ka P sa s m ρ (4)

where ksa is the specific reaction rate constant normalized to the surface area of Fe0

 (L h-1 m-2), as is the surface area of Fe0

(m2 g-1) and ρm is the mass concentration of Fe0 (g L-1 of solution). In this case, [P] represents the concentration of TCE,

cDCE or VC. Reaction rates for TCE, cDCE and VC with PeerlessTM granular iron were calculated from previous column

experiments (Bennett, 1997; Blowes et al., 2000) and are shown in Table 2.

Iron Corrosion

In addition to Cr(VI), TCE, cDCE and VC, other oxidized species are present in the ground water at the Elizabeth City site.

These include dissolved O2, NO3

 and SO4. These oxidized species are reduced at the surface of the granular iron through

corrosion reactions similar to those observed for Cr(VI) and TCE. The redox potentials for these oxidized constituents

decline in the order: O2 > NO3 > SO4. Reduction of all of these constituents by granular iron is thermodynamically favorable,

with the energy yield decreasing in the same order: O2 > NO3 > SO4. Generally, redox processes proceed sequentially from

the highest energy yield downwards (Appelo and Postma, 1994), suggesting that O2 will be removed or reduced first

(eqn. 5).

2 Fe0 + O2 + 2 H2O ⇔ 2 Fe2+ + 4 OH- (5)

Nitrate is expected to be reduced next (eqn. 6). Laboratory experiments indicate that the reduction of NO3

-

 by zero-valent

iron is rapid (Rahman and Agrawal, 1997; Cheng et al., 1997). This reaction forms a nitrite, NO2

-

, intermediate and

ammonia, NH3

, as the end product.

4 Fe0

 + NO3

-

 + 10 H+ ⇔ 4 Fe2+ + NH4

+ + 3 H2

O (6)

Sulfate should be reduced next (eqn. 7). This reaction has been found to be quite slow, unless bacterially or microbially

catalyzed.

4 Fe0 + SO4

2- + 10 H+ ⇔ 4 Fe2+ + H2

S + 4 H2O (7)

In the absence of oxygen, the corrosion of iron by water itself can occur (Reardon, 1995) (eqn. 8).

Fe0

 + 2 H2O ⇔ Fe2+ + 2 OH- + H2(g) (8)

These reactions result in a decrease in these oxidized constituents and net increase in pH and ferrous iron concentration.

Laboratory experiments indicate that the iron corrosion rate and equilibrium pH are a function of solution composition

(Reardon, 1995). Geochemical calculations suggest that the pH of ground-water solutions in the presence of iron can be

controlled by ferrous iron mineral phases, which include amakinite [Fe(OH)2

] and siderite [FeCO3].
4

Methodology

Monitoring Network Installation

Nine compliance wells and a detailed monitoring network of multilevel samplers were installed in the vicinity of the reactive

barrier (Figure 5, Appendix A). The compliance wells are constructed of 5.05 cm (2 in) schedule 40 PVC pipe, with 1.5 or

3 m screened sections. Immediately downgradient of the barrier, two compliance wells (MW47 and MW49) are screened

between 4.3 and 7.3 m below ground surface and one deep well (MW50) is screened between 7.3 and 9.1 m below ground

surface. Further downgradient of the barrier, one well (MW46) is located at the western extent of the barrier and screened

between 4.3 and 7.3 m below ground surface and the other (MW35D) is centrally located and screened between 16.1 and

19.1 m below ground surface. The other four compliance wells are screened between 4.3 and 7.3 m below ground surface

and are located upgradient of the barrier. These compliance wells were installed using a hollow stem auger, as described

by Parsons Engineering Science (1995).

The detailed monitoring network consists of two rows of multilevel sampling bundles (Transects 1 and 3) and one row of

well clusters (transect 2). The multilevel sampling bundles and well clusters were installed in transects, each aligned

perpendicular to the reactive barrier and parallel to ground-water flow direction (Figure 3). The three transects were installed

across the width of the barrier (Figure 3, 5). Each transect contains five multilevel sampler bundles. Within each transect,

one multilevel sampler was placed approximately 2 m upgradient of the reactive barrier and one was placed approximately

1.5 m downgradient. The remaining three sampling bundles were placed in the barrier, inside of a 1.25 m long by 0.64 m

wide and 0.5 to 0.7 m deep metal-sided roadbox.

Multilevel sampling bundles of two configurations were installed into transects 1 and 3. Three of the multilevel sampling

bundles in transects 1 and 3 (ML11, ML14 and ML15; ML31, ML34 and ML35) are composed of ten 0.32 cm I.D. (0.125in)

Teflon sampling tubes attached with nylon ties to a 1.26 cm (0.5 in) schedule 80 PVC centerstock (Figure 6). Bundles

ML12, ML13, ML32 and ML33 used 0.95 cm I.D. by 1.27 cm O.D. (0.375 in by 0.5 in) polyethylene centerstock. The ends

of the Teflon sampling tubes are arranged at 50 cm intervals, from depths of 2 to 6.5 m along the centerstock. Each

sampling tube terminates with a 15 cm (6 in) slotted section which is screened with 0.02 cm (0.0083 in) opening NYTEXTM

nylon mesh attached with stainless steel wire. The PVC centerstock also terminates with a 15 cm (6 in) long 0.025 cm

(0.01 in) slotted section placed at a depth of 7 meters below ground surface (Appendix A).

The well clusters in transect 2 are comprised of seven 1.26 cm I.D. (1⁄2 in) Schedule 80 PVC wells. These wells were

assembled from commercial flush-joint casing slotted over the bottom section 15 cm (6 in) with 0.025 cm (0.01 in) slots.

The wells in each cluster were placed with their slotted sections terminating at 50 cm intervals from approximately 7 meters

depth to 4 meters depth below ground surface.

Bundles or well clusters located outside of the permeable iron barrier were installed using a 6.9 cm (23⁄4 in) I.D. hollow stem

auger. Bundles located within the granular iron barrier, inside the roadboxes, were installed using 5 cm (2 in) E/W flush joint

drive casing. The use of smaller diameter drive casing caused less disturbance within the vicinity of the granular iron

barrier.

Field Analysis

Samples from the multilevel bundle piezometers were collected according to a modified version of the Standard Operating

Procedure RSKSOP-152 (Appendix I). Appendix H lists the standard operating procedures used for analytical measurements. Measurements of Cr(VI), ferrous iron [Fe(II)], dissolved sulfide (S2-), dissolved O2

 (DO), electrical conductivity,

temperature, pH, Eh, alkalinity and ground-water turbidity were made in the field. Cr(VI), Fe(II) and S2- were analyzed in the

field colorimetrically with a UV/VIS spectrophotometer (Hach® DR/2010). Cr(VI) was analyzed directly on the spectrophotometer using 1,5-diphenylcarbazide as the complexing agent (Standard Methods, 1992). Fe(II) was analyzed directly by a

colorimetric method using 1,10-phenanthroline as the complexing agent (Standard Methods, 1992). Dissolved sulfide was

determined colorimetrically using the methylene blue method (Standard Methods, 1992). Dissolved O2

 measurements were

made using a CHEMets® colorimetric test kit for DO, which utilizes a rhodazine-D colorimetric technique (White et al.,

1990). Ground water electrical conductivity and temperature measurements were conducted on freshly pumped water

using an ORION® Model 128 conductivity probe and meter. The Eh and pH of freshly pumped ground water were measured

in a sealed flow-through cell using platinum redox and glass-bulb pH electrodes (ORION® 9678BN combination redox

electrode; ORION® Ross 815600 combination pH electrode). A constant-temperature water bath was used to maintain the

flow cell at ground-water temperatures during pH and Eh measurements. The pH electrode and meter (Fisher Model 955

pH/mV meter) were calibrated at ground-water temperatures using pH 4 and 7 or 7 and 10 buffer solutions at the start of the

day and between samples. The stability of the Eh meter and electrode were checked with Zobell solution (Zobell, 1946;

Nordstrom, 1977) and Light solution (Light, 1972) between samples. Alkalinity measurements were made by titrating

freshly filtered ground-water samples with standardized H2

SO4 acid using a Hach® Digital Titrator and bromocresol greenmethyl red indicator. The turbidity of unfiltered ground water was determined with a Hach® turbidimeter (Model 2100P).

Where appropriate, field measurements were later corrected for temperature.
5

Sampling, Storage and Analysis

Ground-water sampling was conducted by University of Waterloo personnel at bundles located in transects 1 and 3.

Personnel from the R.S. Kerr Environmental Research Laboratory, U.S. EPA and from ManTech Environmental Research

Services Corp., Ada, Oklahoma, sampled bundles located in transect 2 in addition to the compliance wells at the site.

Detailed sampling included the collection of organic and inorganic samples, pH and Eh data, alkalinity, Cr(VI), Fe(II) and

dissolved oxygen concentrations, ground-water electrical conductivity and turbidity. Detailed sampling was conducted at

even-numbered points in transects 1 and 3 and at all points in transect 2. At the odd-numbered points in transects 1 and 3,

all parameters except pH and Eh were collected. The following procedure and equipment description is for the analysis and

collection of samples in transects 1 and 3. The procedures used by the EPA and ManTech for transect 2 were mostly

similar, except that a dissolved oxygen probe was used to determine DO concentrations.

Stainless steel sampling manifolds (Figure 7) were used to fill two 40 mL volatile organic analysis (VOA) glass vials and a

60 mL glass serum vial, for analysis of dissolved gases and volatile organic compounds (VOC). These manifolds,

designed and constructed at the University of Waterloo, prevent exposure of volatile organic ground-water samples to the

air and pump tubing, minimizing volatilization and adsorption. The manifold was placed upstream of a peristaltic pump

(Masterflex® Model 7533-20). Between 1.5 and 2 purge volumes of ground water (225-300 mL) were passed through the

manifold prior to collection of the samples. After the turbidity had been recorded, ground-water samples for analysis of

volatile organic parameters were collected. The samples were collected within the next 2 manifold purge volumes

(~300 mL) at flowrates of 100 to 200 mL/min, using the peristaltic pump, regardless of the turbidity of the ground water. In

most cases, purging, combined with the slow pumping rate resulted in low water turbidity (< 20 ntu; Nephelometric Turbidity

Units). Upon collection, the VOA and gas/VOC samples were preserved with one drop of concentrated H2SO4

 and were

placed into coolers with ice until analysis. Between samples, the manifolds and pump lines were flushed with AlconoxTM

solution (~150 ml), followed by about 0.5 L of deionized water. All organic and inorganic contaminant samples were

submitted for analysis at ManTech Environmental Research Services Corp by the ManTech personnel. A discussion of the

quality assurance/quality control (QA/QC) results for field blanks, duplicates and trip blanks collected during the sampling

sessions is in included in Appendix J.

For each sampling session, at one point in each bundle, the sampling manifold was monitored for cross-contamination

effects. These field-blank samples consisted of deionized water pumped through the manifold immediately after being

flushed (using the normal field sampling routine) with AlconoxTM solution and deionized water. At least one complete set of

duplicate samples (VOA and gases) was collected for each bundle, preserved according to the description above. Two

sets of trip blanks, originating from the EPA and the University of Waterloo research groups, were prepared for each

sampling session. Additional samples were collected from transects 1 and 3 for VOC analysis at the University of Waterloo

for comparison. Samples for analysis at the University of Waterloo were collected at even numbered points in transect 3,

where the VOC concentrations were higher, and one organic sample was collected from each bundle piezometer along

transect 1.

VOA vials were sampled automatically for analysis using a PTA-30 carousel type autosampler connected to a Tekmar LSC

2000 sample concentrator. Desorbed analytes were then transferred to a Hewlet-Packard Model 5890 gas chromatograph

(GC), where separated analytes were detected by a Flame Ionization Detector (FID). Dissolved gases including ethene,

ethane and methane were analyzed by GC and FID (Kampbell et al., 1991). Refer to Appendix H for the list of operating

procedures used for the analysis of dissolved VOCs in the water.

After the ground water was sampled for organic parameters, samples were collected for the analysis of inorganic

parameters. Measurements of pH, Eh and carbonate alkalinity were made immediately before collecting water for cation

and anion analysis. The electrical conductivity of the unfiltered sample water was measured periodically as pH and Eh were

being measured. Temperature measurements were generally made after a bundle was completely sampled or during

purging. Cation and anion samples were collected downstream from the peristaltic pump (Masterflex® Model 7533-20), at

flowrates of 50 to 100 mL/min, after the turbidity had been recorded. Both filtered and unfiltered samples were collected for

cation analysis and were acidified to pH 1 with concentrated nitric (HNO3) acid. Filtered samples were passed through

disposable 0.45 μm GelmanTM Aquaprep filters after allowing a 100 mL purge volume to pass. Additional sets of unfiltered

samples were collected at each sampling point for comparative cation analysis by personnel from the R.S. Kerr

Environmental Research Laboratory, U.S. EPA. Total metal content was determined by ICP on an Atomcomp 975 system.

Refer to Appendix H for the list of operating procedures used for the analysis of dissolved cations in the water. Samples

that appeared turbid (generally greater than 75 ntu) were filtered prior to analysis for Cr(VI) and Fe(II) on the Hach®

spectrophotometer.

Samples collected for anion analysis were unfiltered and not acidified. NO2 and NO3 concentrations were determined

colorimetrically following hydrazine reduction (Kamphake et al., 1967). Cl and SO4 concentrations were determined using

the Waters capillary electrophoresis method. Unfiltered samples were also collected for total organic carbon (TOC)

analysis. These samples were preserved with one drop of concentrated H2SO4. Appendix H summarizes the operating

procedures used for the analysis of dissolved anions in the water.
6

Even numbered sample points were analyzed for Cr(VI), Fe(II) and DO after the collection of samples for inorganic

parameters. For the odd numbered points, these measurements were made after the collection of the VOC samples. DO

values were determined on freshly pumped well water, while Fe(II) and Cr(VI) were analyzed within 10 minutes of being

collected, unfiltered.

Between samples, the pump lines were flushed with AlconoxTM solution (~150 mL), followed by about 0.5 L of deionized

water. At least one complete set (cations, anions, total organic carbon) of duplicate samples and post-decontamination

samples was collected for each bundle. These samples were filtered and preserved according to the description above.

The post-decontamination samples were collected after flushing the pump lines with AlconoxTM and deionized water. Two

sets of trip blanks, originating from the EPA and the University of Waterloo research groups, were prepared for each

sampling session.

In the February 1997 and December 1998 sampling sessions, unfiltered, unpreserved water was collected in transects 1

and 3 for the analysis of 34S enrichment of dissolved SO4

. These analyses were conducted at the University of Waterloo

Environmental Isotope Laboratory.

Ground Water Flow

The piezometer elevations were surveyed and water level measurements were made to determine hydraulic head

(Appendix A). These measurements were made in the 1.26 cm I.D. wells in transect 2 and in the center stocks of the

bundles in transect 1 and 3, but not in the 0.32 cm I.D. Teflon multilevel bundles due to equipment limitations. Field

measurements of hydraulic conductivity were calculated from single-well response tests for wells in transect 2 and for the

center stock points of bundles upgradient and downgradient of the barrier in transects 1 and 3. Water levels were lowered

to steady drawdown values below static level at constant pumping rates and were monitored as the water level recovered

(Appendix F). Hydraulic conductivity was then calculated using the constant-head or variable-head method of Hvorslev

(1951).

Methods of Interpretation

Reactive-Transport Modeling

Two-dimensional ground-water flow and reactive transport simulations were performed with the computer model FRAC3D.

FRAC3D is a three-dimensional (3D) finite-element reactive-transport model that has been previously used to simulate the

flow hydraulics of Funnel-and-Gate systems (Shikaze and Austrins, 1995; Shikaze et al., 1995) and reactive barriers

(Bennett, 1997; Blowes et al., 2000). Using calculated hydraulic conductivities in transect 2, ground-water flow simulations

were used to estimate possible ground-water velocity distributions and ground-water flow pathlines within the vicinity of the

barrier. In addition, reactive transport simulations of the decay of TCE, cDCE and VC were performed to determine the

granular iron zone thickness necessary to explain the observed breakthrough of VC in transect 2.

Geochemical Modeling

The geochemical speciation computer model MINTEQA2 was used to assist in the interpretation of trends observed in the

data. The database of the model was modified to be consistent with the database of WATEQ4F (Ball and Nordstrom,

1991). The solid phase amakinite, Fe(OH)2, was added to the database. The reaction, expressed using MINTEQA2

components, is shown in eqn. 9.

Fe2+ + 2 H2O - 2 H+ ⇔ Fe(OH)2(s) Log K = -13.31 (9)
7

Results and Discussion

Hydrogeology

Hydraulic conductivity values were calculated for all sampling points in transect 2 (Figure 8a). Duplicate bail tests were

also conducted and generally indicated 30% agreement between values for a given sampling point. Because of the small

diameter of the sampling tubes in transects 1 and 3, hydraulic conductivity testing in these transects could be conducted

on only the larger center stock points, which are the deepest points in the bundles.

Calculated hydraulic conductivity values within the aquifer vary from 1 m/day to 16 m/day (Appendix F1). These values,

calculated in 15 cm long, 1.26 cm diameter screened wells, differ from those measured in previous tracer and pump tests,

which were conducted within 1.5 m long, 5.05 cm (2 in) diameter screened wells. In the earlier well-response tests,

calculated hydraulic conductivity values were between 0.1 and 4.8 m/day (Sabatini et al., 1997). The hydraulic conductivity

estimated from a previous tracer test was 26 m/day (Sabatini et al., 1997). The aquifer in the vicinity of the permeable

reactive barrier is heterogeneous, and is comprised of a series of layers. The thickness of these layers varies from 0.3 to

3 m. The hydraulic conductivity values calculated from the small well screens, installed in the vicinity of the permeable

barrier, are probably reasonable estimates for these layers. Slug tests, conducted in the 1.5 m long screened wells, may

yield hydraulic conductivity values which represent an average of many layers within the screened interval. The operational

hydraulic conductivity varies with the scale of the problem and with the scale of the measurement (Bradbury and Muldoon,

1989), suggesting that the field measurements should be conducted on the same scale as the field problem. Bradbury and

Muldoon (1989) indicate that slug tests may only provide representative hydraulic conductivity values for the volume of

material tested; i.e., on the order of m3 for slug tests. The hydraulic conductivity values calculated within this study

therefore may be representative for the small, approximately 4 m by 3 m, cross-sectional area occupied by the sampling

points of the well clusters in transect 2.

The positions of the upgradient and downgradient edges of the barrier are inferred from construction information (Blowes et

al., 2000), and from measurements made in the field after the barrier was installed. Hydraulic conductivities measured

within the inferred zone of granular iron vary from 0.01 to 196 m/day. The highest hydraulic conductivity values measured

exceed the laboratory measured hydraulic conductivity of 85 m/day. The high hydraulic conductivity values measured

within the granular iron zone may result from the lower mass of granular iron deposited into the trench and the

corresponding lower emplaced density. The barrier design called for the installation of 450 tons of granular iron into the

trench; 280 tons of iron were actually installed. Assuming that the granular iron filled the entire volume of the 46 m x 7.3 m

x 0.6 m trench, the minimum average emplacement density is 1.69 g/cm3. This value is 62% of the value determined in the

laboratory column experiments (2.72 g/cm3).

The wide range of hydraulic conductivity values measured in the barrier may be a result of the installation technique. Due

to the installation method, the exact location of the front and rear of the barrier, the nature of the aquifer-barrier contact is

not known. The distribution of hydraulic conductivity values in the vicinity of the barrier suggests the locally, the zone of

granular iron may be thinner than the design value of 60 cm. Low hydraulic conductivity values (< 0.2 m/day) are measured

between approximately 4 - 5 m and 6.5 - 7 m depth below ground surface, near the upgradient side of the barrier. These low

hydraulic conductivity zones may result from mixing and disturbance of granular iron and aquifer material or slumping of

aquifer material into the granular iron zone.

Two-dimensional simulations of ground-water flow were performed using hydraulic conductivity values similar to those

observed within transect 2. The model domain was 4 m by 3.7 m (Figure 8b) with a grid spacing varying between 0.02 and

0.1 m. The top and bottom boundaries were designated as no-flow boundaries. The upgradient and downgradient

boundaries were assigned constant head values, resulting in an average horizontal hydraulic gradient of 0.0033 across the

domain. The flow simulation results (Figure 8c) indicate a zone of preferential flow and higher ground-water velocities

between 4.5 to 6 m depth, upgradient of the barrier. This zone moves downward to 5.5 to 6.5 m depth immediately

upgradient of the barrier because of the presence of low hydraulic conductivity zones at a depth of 4 to 5 m. Ground-water

velocities within the barrier also increase, perhaps as a result of a funnelling effect produced by the low hydraulic

conductivity layers on the upgradient side of the barrier. Modeled ground-water velocities are calculated to approach 0.20

m/day within the barrier.

During several of the sampling sessions, the roadboxes in transects 1 and 2 were observed to fill with water from the

parking lot during rain events. The hydrogeological implications of this flooding have not been determined. Although the

hydrogeological response in the aquifer to these flooding events was not monitored, the spatial distribution of geochemical

parameters within the aquifer remained relatively uniform between sampling episodes. The Roadbox in transect 3 did not fill

with water during the rain events.

Conservative Ground Water Constituents

Sodium and chloride are anticipated to be relatively conservative under the geochemical conditions present at the site.

Between November 1996 and December 1998, only small variations in the Na and Cl concentration profiles are observed
8

(Figure 9, Appendices D and E). The highest concentrations of Na and Cl coincide with the zones of highest concentrations

of Cr(VI) and dissolved organic contaminants.

Comparison of Na and Cl concentrations indicates a 1:1 molar stoichiometry. The Na:Cl ratio is similar upgradient, within

and downgradient of the reactive barrier. The concentrations of these species do not change significantly in the vicinity of

the barrier or downgradient. These observations suggest that the granular iron of the barrier does not affect the transport of

Na and Cl. Na and Cl, therefore, can be used as conservative tracers, their vertical distribution indicating preferential

flowpaths and possible higher conductivity zones within each transect. There is some agreement between measured

hydraulic conductivity, the flow modeling results and the distribution of Na and Cl within transect 2. These results suggest

that there is a preferential flowpath between 4 and 6 m depth below surface.

Redox and pH Conditions

The Eh of untreated ground water entering the barrier is generally high, at between 400 to 500 mV at ground-water

temperatures (15-20o

C) (Figures 10, 11; Appendix B). The Eh decreases sharply, by several hundred mV, within the barrier

to between +50 and –600 mV, reflecting the removal of oxidized species including dissolved oxygen, nitrate, ferric iron, and

sulfate from water in the barrier. Both high and low Eh values are observed in the sampling bundles located just upgradient

of the front of the barrier in transect 1. This distribution suggests that the piezometer bundles ML12, ML22 and ML32 are

located at the leading edge of the barrier, where the distribution of granular iron is irregular. Within the barrier, Eh values in

transect 1 are generally several hundred mV lower than in the other two transects. Between November 1996 and December

1998, Eh values downgradient of the barrier decreased slightly. Within the barrier, no consistent change in Eh values was

evident between sampling episodes.

The measured pH of untreated ground water entering the barrier is slightly acidic, with pH values between 5.5 and 6.7 at

ground-water temperatures (Figures 12, 13, Appendix B). The pH of water entering the barrier increases sharply to between

7.6 and 11. The increase in pH in the barrier is likely most attributable to the corrosion of iron (eqns. 5, 8). The pH within the

barrier in transect 3 is generally lower than in the other two transects, possibly reflecting different positions of the sampling

points relative to the upstream edge of the barrier. At the most downgradient bundle in each transect, pH values decrease

to between 6.5 and 9.4, suggesting that water with higher pH values generated in the barrier is being transported and

neutralized in the aquifer downgradient of the barrier. In general, ground-water Eh and pH values approach background

levels downgradient of the barrier.

Major Ions

Upgradient of the barrier, the dissolved iron concentration is highest between 2 and 4 m (up to 7.5 mg/L total Fe) below

surface. Dissolved iron is not detectable at greater depth (Figure 14, 15; Appendix D). Total dissolved iron concentrations

(Fe) are occasionally higher than ferrous iron [Fe(II)] concentrations. Under the neutral to alkaline pH conditions that prevail

in the aquifer, dissolved Fe(III) concentrations are expected to be negligible because of the low solubility of Fe(III)

oxyhydroxide minerals. The higher concentrations of total dissolved iron may reflect differences between the methods

used to measure the total and ferrous iron concentrations. The colorimetric method used to measure Fe(II) does not detect

iron bound to colloidal material. In contrast, the ground-water samples analyzed by ICP were preserved by acidification.

Acidifying the samples may have dissolved colloidally bound Fe(II) and Fe(III), resulting in higher measured total iron

concentrations.

The exposure of the ground water to the atmosphere during sampling may have resulted in oxidation of Fe(II) to Fe(III), and

subsequently lower Fe(II) concentrations. Hem (1982) suggests that the precipitation of ferric oxyhydroxide by oxygenation

of ferrous solutions is rapid at near neutral pH and increases by a factor of 100 for each unit increase in pH. In an effort to

minimize the possibility of this complication, samples at the field site were typically analyzed for Fe(II) within 10 minutes

of being collected.

At shallow depths upgradient of the barrier, iron concentrations increase between the November 1996 and December 1998

sampling sessions. MINTEQA2 calculations suggest that, where Fe is measurable upgradient of the barrier, the ground

water is supersaturated with respect to ferrihydrite [Fe(OH)3] and goethite [FeOOH] (Figures 16-18, Appendix G).

Precipitation of these phases may limit Fe concentrations at shallow depths, upgradient of the barrier. Between 4 and 7 m

depth upgradient of the barrier, Fe concentrations are consistently near detection.

Iron Corrosion

Total iron concentrations increase from upgradient values of < 0.5 mg/L, to as much as 18 mg/L at the upgradient edge of

the barrier (Figures 14, 15). The presence of high Fe concentrations in the bundles just upgradient of the barrier (bundle

ML12) suggests that granular iron may exist in front of the assumed position of the front of the barrier. This increase in

concentrations in the barrier is probably a result of the corrosion of the granular iron (eqn. 5, 8) and the removal of Cr(VI)

(eqn. 1). In transects 1 and 2 total iron concentrations decrease to less than 1 mg/L further downgradient in the barrier. In

transect 3, ground water with a total iron concentration of 0.1 to 4 mg/L persists across the width of the barrier. Total iron

reaches peak concentrations of 14 to 16 mg/L locally within transect 3.
9

MDL for Fe is lower for the performance report. Total iron concentrations at the most downgradient bundle in each transect

(5th bundle position, ML x5, where x=1, 2, 3; Figures 3, 5) range from the detection limit (0.002 mg/L) to 5 mg/L. The higher

concentrations (> 2 mg/L) in the most downgradient bundles are observed at depths less than 4 m. At these points, higher

Fe concentrations may result from the oxidation of mixtures of granular iron, entrained in the aquifer material, by infiltrating

surface water. The absence of higher Fe concentrations in the deeper points of the 5th bundle position suggest that Fe

released during the reduction of Cr(VI) is removed from the water before leaving the barrier, or in the aquifer sediments

between the barrier and the 5th bundle.

MINTEQA2 calculations suggest that the water within and downgradient of the barrier approaches equilibrium with respect

to ferrihydrite and is supersaturated with respect to goethite (Figure 16). These calculations assume a Fe concentration of

Fe=0.001 mg/L (i.e., 20% of the MDL ) for samples containing Fe concentrations that are below analytical detection. It is

likely that precipitation of ferrihydrite, goethite or a mixed Cr-Fe oxyhydroxide limits Fe(III) concentrations within the barrier.

In all cases, the Fe(III) concentration is calculated from the total iron concentration based on the measured Eh of the water.

Samples from transect 3 (Figure 18) have the highest concentrations of Fe. The water in the barrier at transect 3 ranges

from slightly undersaturated to slightly supersaturated with respect to ferrihydrite (-1.4 < SI < 1.6, SI=Saturation Index) and

is supersaturated with respect to goethite. An analysis of the barrier materials using samples collected six months after

installation, confirmed the presence of goethite (Palmer, 1999). These results are consistent with laboratory experiments in

which Cr(VI) removal from the water with Fe0

 was attributed to the co-precipitation of Cr with goethite (Blowes et al., 1997;

Blowes et al., 2000), or a mixed Fe(III)-Cr(III) hydroxide solid (Puls et al., 1994; Powell et al., 1995 and Blowes et al., 1997).

Where dissolved iron concentrations within the barrier exceed the MDL (transects 2 and 3), MINTEQA2 calculations

suggest that the water approaches or attains equilibrium with respect to siderite and amakinite (Figures 19, 20).

Precipitation of these minerals may affect the pH and may limit Fe concentrations in the water as it passes through the

barrier. In areas where the Fe concentration is below the MDL, the Fe concentration was assumed to be 0.001 mg/L (i.e.,

20% of the minimum detection limit (MDL)). The saturation index values reported from these locations, therefore, are not

strictly representative of the aquifer/barrier conditions. Palmer (1999) confirmed the presence of amakinite, but did not

unequivocally identify siderite in material collected from the barrier six months after installation.

The observed increase in ferrous and total iron concentrations near the upstream edge of the barrier indicates that the

corrosion (eqn. 8) or oxidation of zero-valent iron (eqn. 7) is occurring. The oxidation of zero valent iron is coupled with the

reduction of oxidized species, such as DO, NO3,or SO4 (eqns. 5-7). The DO concentrations in the barrier and aquifer are

variable, but generally are low (< 1 mg/L; Figures 21-26). Upgradient of the barrier, the highest concentrations of NO3 and

SO4 were measured between 4 and 6 m below the ground surface. Sulfate concentrations in the upgradient water vary by

40-80 mg/L between sampling sessions, with no trend over time. Nitrate and SO4

 concentrations decrease sharply as the

ground water enters the barrier. Nitrate concentrations of up to 8 mg/L in the upgradient zone decrease to below detectable

values (0.1 mg/L) within a few centimeters distance into each transect. Sulfate concentrations decrease more slowly with

distance into the barrier. Influent SO4 concentrations of up to 140 mg/L generally decline to detection limit values (0.1 mg/L)

before reaching the downgradient side of the barrier. The relative depletion of NO3 and SO4 in the barrier is consistent with

the thermodynamically predicted sequence, where the species with lower redox potential persist (eqns. 5-7).

Sulfate concentrations at locations within and downgradient of the barrier are similar in all sampling sessions. Nitrate and

SO4 remain at low concentrations downgradient of the barrier (Figures 21-26), suggesting that these compounds are being

mineralized or retained within the barrier. Under the strongly reducing conditions present within the barrier, NO3 and SO4 are

thermodynamically unstable and may be reduced to ammonia and sulfide species. Determinations of the 34S/32S isotopic

ratio of dissolved sulfate-sulfur indicate that the dissolved sulfate of water samples collected from several locations within

and downgradient of the barrier in transect 3 is enriched in 34S relative to upgradient locations (Table 3). Enriched 34S

concentrations is indicative of bacterially mediated sulfate reduction (Thode, 1951). Within transect 1, there is no clear

evidence of 34S enrichment. In most parts of the barrier, SO4 concentrations were too low for sulfur isotopes to be quantified

on 1 liter samples.

Geochemical calculations conducted with MINTEQA2 suggest that the reduced forms for nitrogen and sulfur (NH3 and S2-

respectively) are the dominant aqueous forms under the measured pH and Eh conditions. Saturation index values for

ferrous monosulfide and mackinawite [FeS] were calculated using the measured pH, Eh, total iron and sulfate values and

allowing the field-measure redox potential to control the speciation of iron and sulfur. The results from the November 1996

sampling session suggest that the water is generally undersaturated with respect to ferrous monosulfide and mackinawite

within the barrier, although supersaturation is indicated at one location in transect 1 (Figure 27). In areas where Fe and SO4

are below detection, the Fe and SO4 concentrations specified for the MINTEQA2 calculations were set at 0.001 mg/L (20%

MDL) and 0.01 mg/L (10% MDL) respectively. Mineralogical study of the barrier materials did not confirm the presence of

secondary sulfides (Palmer, 1999). The lack of detection of these phases may reflect the difficulty in detecting the small

mass that could have formed in the 6 month treatment period before analysis of the material. SI values for the December

1998 data (Figure 27, Appendix G) suggest that the water is near equilibrium or is supersaturated with respect to

mackinawite at locations near the middle or downgradient side of the barrier in transects 1 and 2. These results suggest
10

that the precipitation of these sulfide minerals or other less crystalline precursors within the reactive barrier is thermodynamically favored.

The ground-water Eh declines from upgradient values of 100 to 500 mV SHE to less than -100 mV SHE within the barrier,

in all transects (Figures 10, 11). In transects 1 and 3, Eh values less than -500 mV SHE approach the lower limit of

thermodynamic stability for water. These strongly reducing conditions suggest that the reduction of water by Fe0

 may be

occurring. The reduction of water is a net acid consuming reaction, which increases the pH and releases H2

 gas (eqns. 5,

8). The pH increases from between 5.5 and 7 upgradient of the barrier, to between 8.5 and 11 within the barrier (Figures 12,

13). Changes in the pH measurements made at individual sampling points between the first and last sampling sessions are

minimal.

The rate of iron corrosion in ground water has been estimated from hydrogen evolution rates (Reardon, 1995). Iron corrosion

rates of approximately 0.05 - 0.7 mmol Fe2+ (kg Fe)-1 day-1 were reported. Assuming a residence time of 4 days within the

barrier and a calculated iron density of 3.9 kg Fe/L H2O, a maximum ferrous iron concentration of approximately 520 mg/L

is expected. The maximum observed concentration of 15 mg/L Fe is significantly lower than the calculated concentration.

Reardon (1995) found that the iron-corrosion system reaches an invariant composition upon saturation with respect to iron

mineral phases, which included amakinite and siderite. The calculated pH of these invariant systems was in close

agreement with observed iron-corrosion experiments.

Cr(VI) Reduction

Upgradient of the barrier, the center of Cr plume mass is located between 4.5 and 5.5 m below the ground surface (Figures

28, 29). The margins of the plume, defined by the MCL value of 0.05 mg/L, are located between 4 and 7 m below the ground

surface. The highest Cr(VI) concentrations (2 – 4 mg/L) are observed upgradient of the barrier in transects 1 and 2. Cr(VI)

concentrations entering transect 3 are lower than in transects 1 and 2, with maximum values varying with time between 0.1

and 0.5 mg/L. Between November 1996 and December 1998, the concentrations and distribution Cr(VI) upgradient of the

barrier vary by 1 - 2 mg/L (Figures 30-32). The Cr plume extends beyond transect 1 to the east, but is fully intercepted on

west side of the barrier. The vertical extent of the Cr plume is fully intercepted by the barrier.

Total Cr and Cr(VI) determinations (Appendices B and D) indicate that Cr(VI) is the dominant valence of dissolved Cr in

ground water entering the barrier and that Cr(III) concentrations in this water are low. In transects 2 and 3, Cr(VI)

concentrations decrease slightly prior to entering the barrier (Figures 31, 32). Where Cr concentrations are above detection

upgradient of the barrier, the ground water is slightly supersaturated with respect to amorphous Cr(OH)3

 and is

undersaturated with respect to crystalline Cr(OH)3 (Figures 16-18). This early depletion of Cr(VI) suggests that some zero

valent iron may have been entrained in the sand adjacent to the barrier and that Cr(VI) reduction begins a few centimeters

in front of the assumed barrier position.

In each transect the Cr plume dips to a greater depth as it approaches the barrier. The change is most pronounced in

transect 2, where it enters the barrier at 6-7 m depth. Within a few centimeters (<10 cm) travel distance into the barrier,

Cr(VI) concentrations decline from upgradient values as high as 4 mg/L to less than 0.01 mg/L (Figures 30 - 32). Under the

highly reducing conditions within the barrier, Eh values approach -600 mV SHE (Figures 10, 11). Thermodynamic

calculations suggest that Cr(III) is the dominant valence state of Cr below an Eh of approximately 200 mV at pH 10.

CrO4

2- + 3 e-

 + 5 H+ ⇒ Cr(OH)3

0

 + H2O Log K= 60.27 (10)

 pe = 20.09 - 1.67 pH

The high pH conditions within the barrier favor the precipitation of sparingly soluble Cr(III) hydroxide and mixed Cr(III)-

Fe(III) hydroxide phases. Analytical measurements confirm that the total Cr concentrations and therefore also the Cr(III)

concentrations are near the Cr analytical detection limit (0.002 mg/L) within the barrier. Calculations conducted with

MINTEQA2 suggest that dissolved Cr(III) concentrations of 0.01 mg/L Cr(III) (i.e., 50% of the Cr(VI) MDL) within the barrier

would result in supersaturation of the water with respect to amorphous Cr(OH)3. The co-precipitation of Cr within a mixed

Fe(III)-Cr(III) oxyhydroxide (e.g. CrxFe1-x(OH)3) would also result in the observed low Cr concentrations. The total dissolved

Cr concentration, and therefore dissolved Cr(VI) concentration, remains less than 0.01 mg/L downgradient of the barrier in

all transects and all sampling sessions. There is no indication of a decline in effectiveness of the granular iron barrier at

removing Cr over the two and one half-year monitoring period (Table 4).

Unfiltered samples were analyzed for Cr(VI) in the field using a UV/VIS Hach DR/2010 spectrophotometer and

1,5-diphenylcarbazide complexing agent. This technique is specific for Cr(VI), whereas total Cr samples were analyzed in

the laboratory by ICP. Although the total Cr samples were filtered, the 0.45 μm filter may not exclude colloidal particles

which contain adsorbed Cr(VI) or possibly reduced Cr(III) precipitates. Acidification of the ground-water samples as a

preservation technique may also release the colloidal Cr. As a result, the measured total Cr concentrations (i.e., including

colloidal Cr) may be higher than the actual aqueous total Cr values. A comparison conducted during one sampling session

(March 1998) suggests that 0.45 μm filtered total Cr and unfiltered Cr(VI) concentrations are similar.
11

Reductive-dechlorination of Chlorinated Aliphatics

TCE, cDCE and VC

Upgradient of the barrier, the TCE plume occurs at two discrete depth intervals (Figures 33-38). The upper part of the plume

is 4 to 5 m below ground surface and is totally intercepted by the barrier. The deeper plume is present below 6 m depth, and

is not totally intercepted by the barrier. The highest TCE concentration (3,790 μg/L, December 1998; Appendix C) is located

upgradient of the barrier in transect 2, in the lower plume. Maximum TCE concentrations within the upper plume are found

in the upgradient portion of transect 3 (680 to 2,000 μg/L). The lowest influent TCE concentrations are located upgradient

of transect 1 (60 to 114 μg/L). Between November 1996 and December 1998, there is no consistent increase or decrease

in TCE concentrations upgradient of the barrier (Table 4).

In addition to TCE, the ground-water upgradient of the barrier contains cDCE and VC. The cDCE (Figures 34, 37) and VC

(Figures 35, 38) plumes are located between 4 and 5 m below ground surface, with the highest concentrations

(170-286 μg/L cDCE, 29-65 μg/L VC) located upgradient of transects 2 and 3. Between November 1996 and December

1998, there is no consistent increase or decrease in cDCE or VC concentration upgradient of the barrier. cDCE and VC

were not detected in the lower plume, upgradient of the barrier (Table 4).

TCE, cDCE and VC distribution along transects 1, 2 and 3 are shown in Figures 39 through 44. The upper TCE plume dips

slightly as it approaches the barrier. Ground-water flow and contaminant transport simulations (Figure 45) indicate that the

TCE plume moves downward due to the presence of the low hydraulic conductivity zones immediately upgradient of the

reactive barrier. In each transect the TCE concentration decreases to less than approximately 5 μg/L within a few

centimeters travel distance into the barrier. The degree of TCE treatment in the barrier does not change significantly

between the first and last sampling sessions (Table 4). TCE concentrations remain less than 5 μg/L downgradient of the

barrier in all sampling sessions.

The cDCE concentration decreases from a maximum value of 290 μg/L upgradient of the barrier to less than 24 μg/L within

a few centimeters travel distance in the barrier. Except for one measurement of 22 μg/L (February 1997; Table 4), cDCE

concentrations downgradient of the barrier are < 11 μg/L. These cDCE concentrations are less than the MCL value of

70 μg/L.

The maximum VC concentration upgradient from transects 2 and 3 varies from 32 to 65 μg/L. These VC concentrations are

reduced within the barrier to less than 6 μg/L. Generally, VC concentrations downgradient of the barrier are less than 5 μg/L,

slightly greater than the MCL value of 2 μg/L, however, the concentrations vary from less than the MCL up to 9 μg/L. VC

concentrations of ~1 μg/L are common downgradient of transect 1 in the November 1996 and December 1998 sampling

sessions, although VC was not detected upgradient of the barrier during these periods. This VC is a product of TCE

degradation. The degree of removal VC does not vary significantly between sampling sessions.

In each transect, the distribution of TCE, cDCE and VC remains relatively constant between sampling sessions. However,

the maximum TCE concentration upgradient of transect 3 increases from approximately 400 μg/L to 2,000 μg/L between

November 1996 and February 1997 and then decreases to 670 μg/L in December 1998. Higher TCE, cDCE and VC

concentrations within and downgradient of the barrier in the February 1997 sampling session are associated with these high

upgradient TCE concentrations. For example, downgradient of the barrier cDCE concentrations increase from 11 μg/L in

November 1996, to 23 μg/L in February 1997. This increase in the cDCE concentration downgradient of the barrier is

probably due to the increased TCE concentration entering the barrier in February 1997. These cDCE concentrations remain

below the MCL of 70 μg/L, however.

A second, deeper TCE plume is located at > 6 m depth in transects 2 and 3 (Figures 36, 39-44). The concentrations of

cDCE and VC are not detected in the position of this deeper TCE plume. Maximum TCE concentrations of 5,652 μg/L were

measured within this deep plume at the front of the barrier (ML22-1, transect 2) in November 1996. During subsequent

sampling sessions, TCE concentrations at this position decreased, eventually to 242 μg/L in December 1998 (Table 4).

These concentrations declined to less than 5 μg/L downgradient within the barrier. In the November 1996 and February

1997 sampling sessions, TCE concentrations at the deepest point in the farthest downgradient bundle in transect 2 are at

high values, between 50 and 140 μg/L (Figure 40). This observation suggests that part of the TCE plume extends below the

base of the barrier and is not treated. In subsequent sampling sessions, however, TCE at this point was below the MCL,

suggesting the direction of flow may vary periodically. cDCE concentrations exceeding MCL values were not detected in

these deepest monitoring points. In February 1997 and December 1998, VC concentrations (4-15 μg/L) at these deep

monitoring points exceeded MCL values in transect 2.

Continued monitoring of the reactive barrier indicates that the barrier is reducing TCE and cDCE concentrations to less than

MCL values. The sampling results suggest that the granular iron has remained effective at removing the TCE and cDCE

over the two and one-half year monitoring period. VC concentrations of up to 5 μg/L are present downgradient of the barrier

and exceed the MCL value of 2 μg/L. The breakthrough of VC at just above MCL values may result from inadequate

residence time within the barrier. The short residence time may result from a combination of factors including higher than
12

anticipated ground-water velocities within the barrier, reaction rates that are slower than measured in laboratory

experiments, and lower density of iron within the barrier. Lower iron densities may occur where the granular iron pinches out

or thins to less than the design value of 60 cm. In places, the iron emplacement density may also be less than the average

value. Increased ground-water velocities may result from the funnelling effects of low conductivity layers upgradient of the

barrier. Laboratory measurements indicated that the reductive-dechlorination rates are surface-area dependent and thus

are proportional to the density of granular iron within the barrier (Gillham and O’Hannesin, 1994). Because the emplaced

granular iron density is less than the laboratory-measured value, the reaction rates between the iron and volatile organic

contaminants within the barrier will be less than the laboratory-measured rates.

Reactive Transport Simulations

Three reactive transport simulations were performed with FRAC3D to assess the thickness of granular iron that would

explain the observed breakthrough of 5 μg/L VC (Bennett, 1997). The transport parameters used are shown in Table 5 and

the results from these simulations are shown in Table 6. Simulation 1 assumes that the emplaced iron density (2.72 g/cm3

)

and reaction rates are the same as in the laboratory. Simulation 2 assumes that the granular iron occupies the entire

volume of the trench and therefore has a lower emplacement density of 1.69 g/cm3

. Corresponding overall reaction rates

are only 62% of the laboratory-measured values because the surface area density of granular iron would be only 62% of the

laboratory-measured value. Simulation 3 has the same assumptions as simulation 2. However, the lower emplacement

density corresponds to a higher porosity, which is calculated to be 0.62. This higher porosity will result in lower groundwater velocities within the barrier.

The reactive transport simulations indicate that the observed breakthrough of 5 μg/L VC would occur if the width of the

granular iron zone were between 8 cm and 12 cm, depending on the emplaced density of granular iron. The observed

breakthrough of VC suggests that in places the barrier thickness may not meet the design criteria.

Dechlorination Products

The major end products of reductive-chlorination of TCE are ethene and ethane. Ethene, ethane and lower concentrations

of methane, propene, propane, 1-butene and butane have been found to account for 70% of the TCE mass in iron column

experiments (Orth and Gillham, 1996). Ethene, ethane and methane are not detected upgradient of the barrier (Figures 46,

47). The concentrations of these dissolved gases increase within and downgradient of the barrier. The highest concentrations are generally found in transects 2 and 3. Ethene concentrations increase from below detection (3 μg/L) upgradient of

the barrier to as high as 44 μg/L in the barrier (transect 2, November 1996), with downgradient concentrations ranging from

4 to 24 μg/L. Ethane concentrations increase from below detection (2 μg/L) upgradient of the barrier to as high as 59 μg/L

within the barrier (transect 2, November 1996). Downgradient from the barrier, ethane concentrations up to 39 μg/L are

observed. Methane concentrations increase from less than 1 μg/L upgradient of the barrier to 31 μg/L at the front of the

barrier. Between the November 1996 and December 1998 sampling sessions, the maximum concentrations of these gases

decreased by 50 to 75% (Figures 46, 47 Appendix C).

Compared in terms of molar concentrations, the maximum concentrations of 1.5 μM ethene, 0.3 μM ethane and 2 mM

methane are significantly greater than the maximum TCE concentration of 0.05 mM. A mass balance comparison of TCE,

cDCE and VC and methane, ethane and ethene concentrations indicates that these hydrocarbons can account for more

than 100% of the chlorinated organics present. Figures 48 and 49 indicate that the TOC content of the water increases

slightly within the barrier. The spatial correlation between these gases and the chlorinated organics is poor. As a result, a

mass balance for breakdown products cannot be conducted as these observations suggest that other sources are

generating organic carbon, increasing the TOC and releasing methane. Hydrocarbons have been produced in water/iron

batch and column systems in the absence of chlorinated aliphatic compounds. It has been hypothesized that these

hydrocarbons were formed by the reduction of aqueous CO2

 by zero-valent iron (Hardy and Gillham, 1996). Alternatively,

the carbide carbon in iron has been suggested as a likely source for the production of background hydrocarbons (Deng et

al., 1997). A mass balance comparison of TCE, cDCE, VC and chloride ion is similarly inconclusive as upgradient Cl

concentrations are significantly larger, by a factor of 20 or more, than chlorinated organic concentrations.

Mineral Precipitation

Major cations within the ground water include Ca, Mg and Mn. The highest concentrations of these ions are observed

between 3 and 5 m below ground surface. The concentrations of these species decline in all transects as ground water

moves into the barrier (Figures 50-55; Appendix D and E). Ca concentrations decrease from as high as 40 mg/L upgradient

of the barrier to less than 5 mg/L within and downgradient of the barrier. Mg concentrations decrease from up to 17 mg/L to

less than 5 mg/L. Mn concentrations decrease from up to 3.3 mg/L to less than 0.1 mg/L. The concentration of Ca, Mg and

Mn remained consistent in all transects between samplings sessions.

Upgradient of the barrier alkalinity values range between 40 and 110 mg/L as CaCO3

. Alkalinity values decrease

substantially within the barrier, to between 10 and 80 mg/L CaCO3

 (Figures 56, 57; Appendix B). These lower alkalinity
13

values extend downgradient of the barrier. Geochemical calculations indicate that the SI values of calcite [CaCO3],

aragonite [CaCO3

], dolomite [CaMg(CO3)2], siderite, rhodochrosite [MnCO3] and magnesite [MgCO3] (Figures 58-63)

approach or exceed 0 within the barrier. The concentrations of dissolved Ca, Mg, Mn and alkalinity, therefore, may be

controlled by the precipitation of carbonate minerals, or more hydrated carbonate phases. Between November 1996 and

December 1998, alkalinity values throughout each transect varied without consistency.

The precipitation of carbonate, sulfide and hydroxide minerals within the barrier also can impact the performance of the

barrier, by altering the porosity and reactivity (available reactive surface) of the granular iron media. A decrease in porosity

will result in increased ground-water velocities within the barrier, with an associated reduction in available reactive surface

area. Secondary mineral precipitation may eventually lead to clogging of the barrier. Previous column studies using zero

valent iron have indicated uniform porosity losses throughout the column, which decline rapidly at first and then level off to

between 5-15%. This porosity change was attributed to the precipitation of Fe(OH)2

 (amakinite) and the formation of a thin

H2 gas film around the Fe0 particles, which occurs throughout the column. The precipitation of ferrous and calcium

carbonate minerals from anaerobic, high alkalinity ground water was also indicated by Wavelength Dispersive Spectroscopy (WDS) and X-ray photoelectron microscopy (XPS). The precipitation of these minerals was believed to occur near the

influent end of the iron columns, where declines in calcium and alkalinity were observed. Schuhmacher et al. (1997)

similarly detected the presence of CaCO3 and FeCO3 on iron surfaces by using scanning electron microscopy (SEM) and

X-ray spectroscopy. Raman spectroscopy indicated that calcium carbonate was present as aragonite in the first 4 cm of

the granular iron columns. Mackenzie et al. (1997a) calculated that the precipitation of carbonate minerals and Fe(OH)2

throughout the column could only account for 0.3% and 1%, respectively, of the observed porosity loss. However, enough

H2 was produced by the anaerobic corrosion of iron in one day to account for a porosity loss of 10% within their column.

They suggested that the formation of a thin film of H2

 gas around iron particles could account for the observed porosity loss

and that the precipitation of minerals may affect porosity over longer treatment times (Mackenzie et al., 1997b).

The porosity losses due to CaCO3

 and Fe(OH)2 precipitation can be estimated from the observed ground-water

concentrations of Ca, alkalinity and iron corrosion rates. At ground-water flow velocities averaging 15 cm/day (Puls et al.,

1995), 50% estimated barrier porosity and concentrations of 100 mg/L CaCO3 (alkalinity), and assuming a molar volume of

35 mL/mol for CaCO3, a uniform porosity loss rate of 8.7 x 10-6 mLmL-1day-1 or 0.0009 %/day is calculated. At this rate, a

porosity decrease of 10% throughout the barrier would take 32 years. If the CaCO3 only precipitates within the first 10 cm

of the barrier, a porosity loss rate of 5.2 x 10-5 mLmL-1day-1 is calculated for this zone. At this rate, the porosity of the front

of the barrier would decrease by 10% over about 5 years. As a worst case, if calcite precipitation concentrates in the front

5 cm or 2.5 cm of the barrier, a 10% reduction in porosity would be observed after 2.6 or 1.3 years, respectively. Siderite

may precipitate instead of calcite. If siderite precipitation occurs, the porosity will decrease 20% more slowly (e.g.,

6.2 years for a 10 cm zone), because of the lower molar volume of siderite (29.4 ml/mol).

Using an iron corrosion rate of 0.6 mmol Fe2+/kg Fe per day (Reardon, 1995) and a Fe(OH)2 molar volume of 26.4 mL/mol,

the porosity loss rate due to Fe(OH)2 precipitation would be 0.006% per day. At this rate, a uniform porosity loss of 10%

throughout the barrier would take 4.5 years.

Sulfate entering the barrier is consumed before discharging from the barrier. The sulfate may be reduced to sulfide, which

may then precipitate as an insoluble metal sulfide, such as iron sulfide (FeS, molar volume 24.4 ml/mol). Assuming an

average input concentration of 50 mg/L SO4, and that Fe2+ is available in excess, a 10% porosity loss in the front 10 cm of

the barrier would occur over 15 years, or 75 years over the full thickness of the barrier.

These calculations suggest that the precipitation of CaCO3 or FeCO3 at the front of the barrier and Fe(OH)2 or iron sulfide

throughout the barrier may be important in adversely influencing the porosity and hydraulic conductivity of the barrier over

long time periods. However, these calculations assume that all the minerals precipitate within the barrier and adhere to the

granular iron. In addition, the precipitation of Fe(OH)2 does not account for the original volume of Fe0 that dissolves to form

Fe2+. The long-term impact of precipitate formation on barrier porosity is considered further in Volume 3.

Mineralogical study of barrier materials collected immediately after installation of the barrier (June 1996) and 6 months

later, in November 1996 confirmed that secondary Fe(OH)2 and ferric hydroxides (goethite) formed on iron within the barrier

after installation (Palmer, 1999). Secondary carbonates (siderite) were not unequivocally identified. Secondary sulfides

were not detected on the granular iron, though this may be a result of the small mass that would have formed in the six

month treatment period before the analysis (Palmer, 1999).

In terms of precipitate impact on reactivity, column studies with zero-valent iron conducted for more than three hundred

pore volumes indicate minimal loss in reactivity towards TCE (Cippollone et al., 1997). At ground-water velocities of

10 cm/day, this corresponds to a barrier lifetime of at least 5 years with a minimal decline in TCE reaction rate. Similarly,

laboratory column experiments (O’Hannesin et al., 1995; Blowes et al., 2000) indicated Cr(VI) front migration which

suggested breakthrough of Cr(VI) after 1,400-2,000 pore volumes. This would correspond to a barrier lifetime of between

19-28 years. These estimates suggest that the precipitation of minerals may have an impact on granular iron reactivity

towards Cr(VI) and TCE over a long time period.
14

Other Impacts

Apart from Na and Cl, the concentrations of all other major ground-water constituents (Ca, Cr, Mg, Mn, SO4, NO3 and CO3)

decline within the barrier. The decreases in aqueous constituent concentrations, resulting from reduction and precipitation,

affect the electrical conductivity of the ground water. The electrical conductivity of a solution is proportional to the

concentrations of dissolved ions (Hem, 1982). Thus, as dissolved species are removed from solution by precipitation, the

electrical conductivity decreases. In transect 1, electrical conductivity values decrease from 230-880 μS/cm upgradient of

the barrier, to 40-600 μS/cm within and downgradient of the barrier (Figures 64, 65). In transect 3, the electrical conductivity

decreases from 150-600 μS/cm upgradient of the barrier, to 150-500 μS/cm downgradient. Electrical conductivities were

similar in each of the sampling sessions. For comparison, electrical conductivity values were also calculated using

Onsager’s limiting law expression and observed ground-water constituent concentrations (Hem, 1982). The distribution of

electrical conductivity calculated from the ionic concentrations is very similar to the observed electrical conductivity

(Figure 66).

Compliance Well Results

Chromium concentrations are below detection in all compliance wells downgradient of the barrier, for all sampling periods

(Table 7), suggesting that Cr(VI) is reduced by the granular iron barrier. The results indicate the barrier has removed

dissolved Cr throughout the two and one half-year monitoring period with no apparent decline in effectiveness.

In all sampling sessions, TCE concentrations are also below MCL values in MW47 and MW49, located immediately

downgradient of the reactive barrier (Figure 5; Table 8). These wells are screened over approximately the same depth

interval as the reactive barrier and represent concentrations that are averaged over the screened interval. The low TCE

concentrations (< MCL) measured in these compliance wells indicate that the granular iron is reducing TCE concentrations

in the ground water that flows through the barrier. The results suggest the effectiveness of the barrier has not declined over

the two and one half-year monitoring period.

TCE concentrations in MW46, located near the river and toward the western extent of the barrier (Figure 5), are greater than

the MCL value. However, the quality of water at MW46 with respect to TCE, seems to be improving with time. The TCE

concentrations at MW46 decreased from high values in November 1996 (256 μg/L) and February 1997 (636 μg/L) to values

< 75 μg/L in all sampling sessions other than March 1998. These results suggest that the reactive barrier is not intercepting

the western extent of the TCE plume.

TCE concentrations in MW50, a deep well immediately downgradient of the barrier, are greater than the MCL value. MW50

is located below the barrier for the purpose of monitoring the quality of the ground water flowing beneath the barrier. The

TCE concentrations in this compliance well tend to increase between sampling sessions, from < 50 μg/L in November 1996

and February 1997 to a maximum value of 548 μg/L in September 1997. Between March 1998 and December 1998, TCE

concentrations were lower, between 171 and 390 μg/L. The measurement of high concentrations of TCE in the deepest

piezometers in the barrier suggests that portions of the TCE plume extend beneath and are not intercepted.

The concentration of cDCE is equal to or less than MCL values (70 μg/L) in all compliance wells in all sampling sessions

(Appendix C). Between November 1996 and September 1997, VC concentrations at the compliance wells downgradient of

the barrier were less than or equal to the MCL (2 μg/L). In March 1998 however, VC concentrations in MW 46, 47, 49 and

50 first exceeded MCL, with values between 2.5 and 4.9 μg/L (Table 9). Data collected in 1998 indicate that VC

concentrations in the compliance wells started to increase after September 1997. In all of the 1998 sampling sessions, VC

values exceeded the MCL in compliance wells downgradient of the barrier. In December 1998, VC concentrations reached

a maximum value of 8.7 μg/L at MW46, located near the river and toward the western extent of the barrier. It is probable that

water at this compliance well was not fully intercepted and treated by the barrier. VC concentrations at the downgradient

compliance wells are not consistently above the MCL. At times, VC concentrations decrease below detection in some of

the compliance wells that in a previous session showed VC concentrations that exceeded the MCL. The periodic

breakthrough of VC at compliance wells located downgradient of the barrier may be a result of insufficient residence time

in the barrier.
15

Conclusions

A permeable reactive barrier containing PeerlessTM granular iron was installed at the U.S. Coast Guard Support Center,

Elizabeth City, N.C., in June 1996. The performance of the barrier was monitored on seven occasions between November

1996 and December 1998. The highest concentrations of all major ground-water constituents, including Cr(VI) and

chlorinated organics, occur within a higher hydraulic conductivity zone, located at 4.5 to 6.5 m depth upgradient of the

barrier. Flow modeling suggests that ground-water flow occurs primarily in this zone, due to confinement by natural low

hydraulic conductivity zones upgradient of the barrier. Additional low hydraulic conductivity zones occur discontinuously

near the upgradient contact between the aquifer and the barrier. This low hydraulic conductivity possibly results from the

mixing of aquifer material and granular iron. Ground water preferentially flows within the higher conductivity zone toward the

granular iron barrier, where the Eh and pH change dramatically. The corrosion of granular iron by water, Cr(VI), SO4

, NO3

and other oxidized species produces extremely low Eh conditions (e.g., Eh values below -500 mV SHE) and high pH

conditions (e.g., pH values that exceed 10). These changes in Eh and pH reflect a marked shift in the ground-water

chemistry. The only major ground-water constituents that remain unaffected are Na and Cl, two relatively conservative

species unaffected by changing redox and pH conditions.

A review of the November 1996, February 1997 and December 1998 data indicates that most inorganic ground-water

constituents, including Cr(VI), are removed from the ground water in the vicinity of the reactive barrier by processes

including reduction and precipitation, which are favored under the Eh-pH conditions present within the barrier. Oxidized

species such as Cr(VI), SO4 and NO3

 are reduced within the barrier, while aqueous CO3 (expressed as alkalinity), Mn, Mg,

Ca, Fe and Cr(III) concentrations decrease, possibly as a result of carbonate, sulfide and hydroxide mineral precipitation.

Geochemical calculations indicate that the saturation indices of various carbonate and hydroxide mineral phases exceed

zero within the barrier, suggesting that the precipitation of these minerals is thermodynamically favored. The electrical

conductivity of the ground water also decreases, as it is proportional to the concentrations of ionic species within the

ground water.

The precipitation of secondary minerals within the barrier may have an important impact upon the performance of the barrier

in terms of Cr(VI) reduction and the reductive-dechlorination of TCE and its daughter products. Precipitates may alter the

reactivity of the granular iron by making the iron particle surfaces inaccessible, or may alter the ground-water flow velocity

and direction if the hydraulic conductivity or porosity of the barrier decrease. However, slug tests performed at the February

1997 sampling session indicate that the hydraulic conductivity of the granular iron is greater than 85 m/day and thus is

significantly greater than the hydraulic conductivity of the aquifer (1-16 m/day).

The dominant valence state of Cr in plume water is Cr(VI). Cr(VI) and total Cr concentrations decrease to less than the MCL

value of 0.05 mg/L within and downgradient of the barrier. The reactions within the barrier also decrease the TCE, cDCE

and VC concentrations to near or below their MCL values of 5 μg/L TCE, 70 μg/L cDCE and 2 μg/L VC. In addition, the TCE

plume appears to be heterogeneously distributed with depth. Part of the plume occurs at depths below the barrier and the

deepest monitoring points. The presence of TCE concentrations above the MCL value at the deepest downgradient

monitoring points may indicate that this part of the plume flows beneath the barrier and is not treated.

TCE concentrations are reduced by orders of magnitude within the barrier, although TCE concentrations of up to 15 μg/L

are observed downgradient. Similarly, VC concentrations are significantly reduced within the granular iron barrier, although

concentrations of up to 5 μg/L persist downgradient. These concentrations exceed the MCL at only a few downgradient

sampling points and may indicate inadequate residence and treatment time within the barrier. Hydraulic conductivity

measurements indicate that low hydraulic conductivity zones upgradient of the barrier may focus flow through higher

conductivity zones, increasing ground-water velocities within the barrier. The mass of granular iron emplaced in the trench

(280 tons) was less than originally planned (450 tons). As a result, the granular iron density may be lower and granular iron

zone may be thinner than originally designed. Reactive transport simulations indicate that the observed breakthrough of

5 μg/L VC within transect 2 would occur if the granular iron thickness was less than approximately 6 - 12 cm.

Results from the compliance wells indicate that contaminated ground water flowing through the barrier is treated

successfully to below the MCL values for Cr(VI) and cDCE at all times. TCE concentrations in two of the compliance wells

(MW 47, MW49) located directly downgradient of the barrier also meet MCL values at all times. The compliance wells,

however, give contaminant concentrations that are averaged over a 1.5 or 3 m screened interval. The smaller 15 cm long

screened multilevel samplers indicate that breakthrough of TCE and VC slightly above MCL values occurs in localized

points downgradient of the barrier.

TCE concentrations in two other compliance wells exceed the MCL value periodically. One of these wells (MW46) is

located toward the western extent of the barrier and may represent water that was not fully intercepted and treated by the

barrier. The other well (MW50) is screened at depths below the barrier. The ground water in this well did not flow through and

was not treated by the barrier. The high TCE concentrations in this well confirm that part of the TCE plume extends below

the barrier, at depths greater than 7.3 m.
16

VC concentrations in the compliance wells downgradient of the barrier were below MCL values between November 1996

and June 1997. Between September 1997 and December 1998, VC concentrations in these wells exceeded the MCL value

slightly. The periodic breakthrough of VC at these wells may be a result of insufficient residence time in the barrier, as

mentioned above.

The reviewed data suggest that the effectiveness of the granular iron at removing Cr(VI), TCE and cDCE has not

diminished over the two and one-half year monitoring period.
17

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20
21

Tables
22

Table 1. Selected Physical Properties of the Granular Iron Used in the Reactive Barrier

Range in field values are estimated values based on the lower mass of iron in the trench.

Table 2. First-order Surface Area Normalized Reaction Rates for Chlorinated Aliphatics with PeerlessTM Granular Iron (from O’Hannesin et

al., 1995; Blowes et al., 2000)

Maximum anticipated t 1/2 (field) calculated assuming ρ b for emplaced iron of 1.69 g/cm3

Table 3. Dissolved SO4 Concentrations and δ34S Values in Transects 1 and 3 (December 1998)

Units TCE cDCE VC

KSA (Laboratory values) [L m-2 hr-1] 7.82 x 10-5 2.76 x 10-5 8.63 x 10-5

t1/2 (Laboratory values) [hr] 1.73 4.89 1.57

t1/2 (Anticipated field value) [hr] 1.73 - 2.79 4.89 - 7.89 1.57 - 2.53

PARAMETER Units Laboratory value Anticipated field values

d50 mm 0.4 0.4

d60/d10 2.7 2.7

Bulk density (ρb) g/cm3 2.72 1.69 - 2.72

Hydraulic Conductivity (K) m/day 84.7 > 84.7

Porosity (η) 0.43 0.43 - 0.62

Surface Area m

2

/g 0.813 0.813

Sample Distance from

ML11 (m)

SO4

mg/L

δ 

δ 34S

per mil

ML11-4 0 97.4 5.01

ML11-4 0 97.4 4.96

ML12-3 1.77 95.7 3.69

ML12-3 1.77 95.7 3.81

ML12-4 1.77 93.2 4.11

ML12-4 1.77 93.2 4.01

ML15-7 3.72 12.5 1.38

Sample Distance from

ML31 (m)

SO4

mg/L

δ 

δ 34S

per mil

ML31-5 0 73.2 4.05

ML32-5 1.9 31.2 8.34

ML32-5 1.9 31.2 8.47

ML33-2 2.16 2.79 13.91

ML33-2 2.16 2.79 13.78

ML35-6 3.64 5.31 11.72

ML35-6 3.64 5.31 12.09
23

Table 4. Concentration Trends for Cr, TCE, cDCE and VC Over All Seven Sampling Sessions at Transects 1 and 3

ML11-0 0.208 0.111 0.254 0.11 0.133 0.168 22.8 14.9 12.6 13.2 17.7 10.4 10.5

ML11-1 1.15 1.66 0.856 0.844 0.76 0.681 28.6 18.5 14.7 5.9 8.5 11.9 7.1

ML11-2 1.61 0.575 1.22 0.4 0.294 0.513 15.4 26.9 44.9 32.2 39.7 27.3 12.7

ML11-3 2.92 1.38 1.6 0.805 1.12 2.03 36.4 45 32.8 17 63.0 34.9 47.6

ML11-4 3.08 2.07 1.56 1.21 1.92 2.13 45.8 30 79.6 70.3 49.9 27.1 114

ML11-5 0.106 0.132 0.0839 0.122 0.178 0.0767 65.4 60.6 46.7 28.7 ND 53.0 28.2

ML11-6 0.1008 0.0476 <0.0044 0.146 0.148 0.078 71.2 11.2 15.8 2.6 63.9 11.2 24.0

ML11-7 <0.0012 0.0047 <0.0044 <0.0025 <0.0023 <0.0023 37.7 1.1 13.4 ND 2.9 ND 1.2

ML11-8 <0.0012 0.0047 <0.0044 <0.0025 <0.0023 <0.0023 9.2 BLQ ND ND BLQ BLQ ND

ML11-9 0.0019 0.0047 <0.0044 <0.0025 <0.0023 <0.0023 3.7 ND ND ND ND BLQ ND

ML11-10 0.0014 0.0047 <0.0044 <0.0025 <0.0023 <0.0023 3.8 ND ND ND ND ND ND

ML12-1 1.89 1.36 0.86 0.868 0.581 0.517 17.3 9.2 11.0 30.7 10.4 13.5 12.0

ML12-2 3.22 2.23 1.38 0.575 0.552 1.05 27.1 31.1 18.1 39.7 22.8 34.6 19.0

ML12-3 2.14 2.29 1.56 0.976 1.17 1.58 43.2 30.7 42.0 67.2 20.5 28.5 33.8

ML12-4 0.894 1.09 0.305 0.691 0.827 1.13 43.1 38.9 44.4 49.1 53.1 34.6 41.7

ML12-5 0.0034 0.0913 <0.0028 <0.0025 <0.0023 <0.0024 11.1 18.8 17.9 10.8 61.7 32.1 58.6

ML12-6 <0.0012 0.0138 <0.0028 <0.0025 <0.0023 <0.0023 0.9 ND ND ND 1.3 ND ND

ML12-7 0.0088 0.0111 <0.0025 0.0032 <0.0023 ND ND ND ND 1.0 ND 2.3

ML12-8 0.0044 0.0075 0.0041 <0.0025 <0.0023 <0.0023 ND ND ND ND ND ND ND

ML12-9 <0.0012 0.0071 <0.0028 <0.0025 <0.0023 <0.0023 ND ND ND ND ND ND ND

ML12-10 <0.0012 <0.0028 <0.0025 <0.0023 0.0047 ND ND ND ND 1.0 ND ND

ML13-0 <0.0029 0.0047 <0.0028 <0.0025 <0.0023 <0.0023 ND ND ND ND 2.5 ND ND

ML13-1 <0.0029 0.0047 0.0074 <0.0025 <0.0031 <0.0023 1 ND ND ND 1.1 1.4 ND

ML13-2 <0.0029 0.0047 <0.0028 <0.0025 <0.0031 0.0024 ND ND ND ND 1.5 ND ND

ML13-3 <0.0029 0.0047 <0.0028 <0.0025 <0.0031 <0.0023 ND ND ND ND BLQ ND ND

ML13-4 <0.0029 0.0047 <0.0028 <0.0025 <0.0031 <0.0023 ND ND ND ND ND ND ND

ML13-5 <0.0029 0.0071 <0.0028 <0.0031 <0.0023 ND ND ND ND ND ND ND

ML13-6 <0.0029 0.0047 <0.0028 <0.0025 <0.0031 <0.0023 ND ND ND ND ND ND <1.0

ML13-7 <0.0012 0.007 <0.0028 <0.0025 <0.0031 <0.0023 ND ND ND ND ND ND ND

ML13-8 <0.0029 0.0063 <0.0028 <0.0025 <0.0031 <0.0023 ND ND ND ND ND ND ND

ML13-9 <0.0012 0.0006 <0.0028 <0.0025 <0.0031 <0.0023 ND ND ND ND 2.4 ND ND

ML13-10 <0.0029 <0.0028 <0.0025 <0.0031 <0.0023 ND ND ND ND ND ND ND

ML14-0 <0.0029 0.0047 <0.0033 <0.0024 <0.0031 <0.0023 ND ND ND ND ND ND ND

ML14-1 <0.0029 0.0047 <0.0033 <0.0024 <0.0031 <0.0023 ND ND ND ND ND ND ND

ML14-2 <0.0029 0.005 <0.0033 <0.0024 <0.0031 <0.0023 ND ND ND ND ND ND ND

ML14-3 <0.0029 0.0047 <0.0033 <0.0024 <0.0031 <0.0023 ND ND ND ND ND ND ND

ML14-4 <0.0029 0.0047 <0.0033 <0.0024 <0.0031 <0.0023 ND ND ND ND ND ND ND

ML14-5 <0.0029 0.0047 <0.0033 <0.0024 <0.0031 ND ND ND ND ND ND

ML14-6 <0.0029 0.0047 <0.0033 <0.0024 <0.0031 0.0031 ND ND ND ND ND ND ND

ML14-7 <0.0029 0.0047 <0.0033 <0.0024 <0.0031 <0.0023 ND ND ND ND ND ND ND

ML14-8 <0.0029 0.0047 0.0035 <0.0024 <0.0031 <0.0023 ND ND ND ND ND ND ND

ML14-9 <0.0029 0.008 <0.0033 <0.0024 <0.0031 <0.0023 ND ND ND ND ND ND ND

ML14-10 0.0171 <0.0033 <0.0024 <0.0031 <0.0023 ND ND ND ND ND ND ND

ML15-0 <0.0029 0.0047 <0.0033 <0.0024 <0.0031 <0.0023 10.8 12.2 4.9 1.0 4.5 1.7 ND

ML15-1 <0.0029 0.0047 <0.0033 <0.0053 <0.0031 <0.0023 ND ND ND 2.2 ND ND ND

ML15-2 <0.0029 0.0047 <0.0033 <0.0024 <0.0031 <0.0023 ND ND ND ND ND ND ND

ML15-3 <0.0029 0.0047 <0.0033 <0.0024 <0.0031 0.0003 ND ND ND ND ND ND ND

ML15-4 <0.0029 0.0047 0.0038 <0.0024 <0.0031 <0.0016 ND ND ND ND ND ND ND

ML15-5 <0.0029 0.0047 <0.0033 <0.0024 <0.0031 <0.0016 ND ND ND ND ND ND ND

ML15-6 <0.0029 0.0047 <0.0033 <0.0024 <0.0031 0.0016 ND BLQ ND 1.5 BLQ ND 1.2

ML15-7 <0.0029 0.0047 <0.0033 <0.0024 <0.0031 <0.0016 BLQ 1.1 1.0 2.7 1.3 1.5 1.9

ML15-8 <0.0029 0.0047 <0.0033 <0.0024 <0.0031 <0.0016 1.3 1.2 1.1 2.5 2.0 1.4 1.8

ML15-9 0.0068 0.0062 <0.0033 <0.0024 <0.0031 0.0026 2.9 1.3 1.3 3.9 1.3 1.1 2.1

ML15-10 0.0363 <0.0033 <0.0024 0.0033 0.0026 BLQ BLQ ND 2.1 1.7 ND 1.0

ND = None detected

BLQ = Below level of quantitation (1 ppb)

Nov-96 Feb-97 Sep-97 Mar-98 Jun-98 Dec-98 Nov-96 Feb-97 Jun-97 Sep-97 Mar-98 Jun-98 Dec-98

Well # Cr Cr Cr Cr Cr Cr TCE TCE TCE TCE TCE TCE TCE

 mg/L mg/L mg/L mg/L mg/L mg/L (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L)
24

Table 4. Concentration Trends for Cr, TCE, cDCE and VC Over All Seven Sampling Sessions at Transects 1 and 3

ND = None detected

BLQ = Below level of quantitation (1 ppb)

ML31-0 <0.0025 0.0437 <0.0033 <0.0024 <0.0036 0.0022 144 49.5 80.3 110 101.9

ML31-1 0.0277 0.0664 0.0407 0.08 0.0641 0.0451 240 60.5 66.2 46.6 33.9 87.0 11.0

ML31-2 0.0756 0.119 0.0467 0.0791 0.0083 136 45.6 42.3 29.4 ND 7.3

ML31-3 0.215 0.0884 0.0408 0.0181 0.013 0.0102 6.4 2.4 2.8 187 2.4 7.7

ML31-4 0.354 0.142 0.0784 0.0382 0.0283 0.0475 108 531 180 950 65.3 8.9

ML31-5 0.043 0.0905 0.0615 0.0738 0.079 0.0721 396 2000 620 871 288.4 59.1 673

ML31-6 0.0048 0.0043 <0.0033 0.0044 <0.0036 <0.0016 356 680 635 226 312.5 645.5

ML31-7 <0.0025 0.0028 <0.0033 <0.0041 <0.0036 <0.0016 331 280 475 288 507.4 524.4 320

ML31-8 <0.0025 0.0019 <0.0033 <0.0041 0.0041 0.002 205 73.5 109 18.3 341.2 464.5

ML31-9 <0.0025 0.0028 <0.0033 <0.0041 <0.0036 <0.0016 8.4 22.3 5.6 5.2 219.9 244.2 21.3

ML31-10 <0.0025 <0.0033 <0.0041 <0.0036 <0.0016 5.4 4.5 3.8 3.1 65.0 45.4

ML32-0 <0.0025 0.0028 <0.0042 <0.0036 <0.0016 169 80.9 84.6 73.2 61.8 10.4 63.1

ML32-1 0.0089 0.0334 0.0402 0.0579 0.0671 0.0607 304 104 56.4 55.2 18.1 110.6 8.2

ML32-2 0.341 0.219 0.1 0.0641 0.0572 0.0403 78.5 4.7 7.1 13.3 7.5 14.7 4.5

ML32-3 0.329 0.278 0.109 0.103 0.0732 0.027 326 1390 3.1 50.9 322.1 7.8 370

ML32-4 0.045 0.0307 0.0554 0.0829 0.0659 0.0401 465 724 421 324 386.0 289.7 563

ML32-5 <0.0025 0.0028 <0.0042 0.0246 0.0374 <0.0016 254 280 96.7 176 237.6 474.2 425

ML32-6 0.0034 0.0064 <0.0042 <0.0041 <0.0036 <0.0016 48 7.7 9.1 3.7 43.5 410.5 98.0

ML32-7 <0.0025 0.0036 <0.0042 <0.0041 <0.0036 <0.0016 3.8 2.2 1.7 1.4 5.4 57.1 3.2

ML32-8 <0.0025 0.0046 <0.0042 <0.0041 <0.0036 <0.0016 2.5 2.0 1.4 1.1 BLQ 2.8 1.3

ML32-9 <0.0025 0.0036 <0.0042 <0.0041 <0.0036 0.0021 3.5 6.9 3.0 1.8 BLQ ND 1.2

ML32-10 0.017 <0.0041 0.0028 5.5 4.8 3.0 BLQ 1.3 1.2

ML33-0 <0.0025 0.0036 <0.0042 <0.0041 <0.0036 <0.0016 ND ND ND ND ND 1.4 ND

ML33-1 0.0029 0.0306 <0.0042 <0.0041 <0.0036 <0.0024 9.7 22.1 3.7 1.9 17.8 ND 6.1

ML33-2 <0.0025 0.0036 <0.0042 <0.0041 <0.0036 <0.0024 23.4 4.9 4.9 ND 21.5 7.5 11.8

ML33-3 <0.0025 0.0069 <0.0042 <0.0041 <0.0036 <0.0024 9.2 22.6 1.7 1.4 27.2 33.0 7.5

ML33-4 <0.0025 0.0036 <0.0042 <0.0041 <0.0036 <0.0024 10.7 BLQ ND ND 1.2 15.7 ND

ML33-5 <0.0025 0.0009 <0.0042 <0.0041 <0.0036 <0.0024 5.5 7.1 ND ND ND ND 3.2

ML33-6 0.0028 0.0036 <0.0042 <0.0041 <0.0036 <0.0024 2.2 1.7 ND ND ND 3.1 ND

ML33-7 <0.0025 0.0036 <0.0042 <0.0041 <0.0036 <0.0024 4.6 3.0 1.0 ND BLQ ND ND

ML33-8 <0.0025 0.0036 <0.0042 <0.0041 0.0043 <0.0024 6.9 3.7 1.4 ND ND ND ND

ML33-9 <0.0025 0.0036 <0.0042 <0.0041 <0.0036 <0.0024 10.5 1.5 ND ND ND ND ND

ML33-10 <0.0025 <0.0042 <0.0041 <0.0036 <0.0024 8.5 2.1 0.9 ND ND ND ND

ML34-0 <0.0025 0.0036 <0.0042 <0.0041 <0.0023 <0.0024 ND ND ND ND ND ND ND

ML34-1 <0.0025 0.0036 <0.0042 <0.0041 <0.0023 <0.0024 ND 41.7 3.9 1.5 1.3 ND ND

ML34-2 <0.0025 0.0036 <0.0042 <0.0041 <0.0023 <0.0024 5.3 8.3 1.2 0.9 3.3 6.0 1.9

ML34-3 <0.0025 0.0036 <0.0042 <0.0041 <0.0023 <0.0024 3 ND ND ND ND ND ND

ML34-4 <0.0025 0.0036 <0.0042 <0.0041 <0.0023 <0.0024 ND ND ND ND ND ND ND

ML34-5 <0.0025 0.0074 <0.0042 <0.0041 <0.0023 <0.0024 ND ND ND ND ND ND ND

ML34-6 <0.0025 0.0036 <0.0042 <0.0041 <0.0023 <0.0024 ND ND ND ND ND ND ND

ML34-7 <0.0025 0.0059 <0.0041 <0.0023 <0.0019 ND ND ND ND BLQ ND ND

ML34-8 0.0094 0.0036 <0.0041 <0.0023 <0.0019 ND ND ND ND ND ND ND

ML34-9 <0.0025 0.0042 <0.0041 <0.0023 0.0023 ND ND ND ND ND ND ND

ML34-10 0.0061 <0.0041 <0.0023 0.0044 ND ND ND ND ND ND ND

ML35-0 <0.0025 0.0036 <0.0042 0.0024 <0.0023 0.002 3.7 23.0 2.7 1.6 18.6 4.2 1.1

ML35-1 <0.0025 0.0036 <0.0042 <0.0020 <0.0023 ND ND ND ND ND ND ND

ML35-2 <0.0025 0.0036 <0.0042 0.0032 <0.0023 <0.0019 ND ND ND ND ND ND ND

ML35-3 <0.0025 0.0036 <0.0042 <0.0020 <0.0023 2.2 16.9 6.8 3.2 2.9 2.3

ML35-4 <0.0025 0.0036 <0.0042 <0.0020 <0.0023 <0.0019 ND 2.8 1.5 ND 1.5 ND ND

ML35-5 0.0035 0.0036 <0.0042 <0.0020 <0.0023 ND ND ND ND ND ND

ML35-6 <0.0025 0.0036 <0.0042 <0.0020 <0.0023 <0.0019 1.7 0.9 ND ND ND ND ND

ML35-7 <0.0025 0.0036 <0.0042 <0.0020 <0.0023 2.8 1.5 ND ND ND ND

ML35-8 <0.0025 0.0036 <0.0042 <0.0020 <0.0023 <0.0019 3.5 BLQ ND ND ND ND ND

ML35-9 <0.0025 0.0036 <0.0042 <0.0020 <0.0023 <0.0019 ND ND ND ND ND ND ND

ML35-10 <0.0025 <0.0042 <0.0020 0.0054 <0.0019 ND ND ND ND ND ND ND

Nov-96 Feb-97 Sep-97 Mar-98 Jun-98 Dec-98 Nov-96 Feb-97 Jun-97 Sep-97 Mar-98 Jun-98 Dec-98

Well # Cr Cr Cr Cr Cr Cr TCE TCE TCE TCE TCE TCE TCE

 mg/L mg/L mg/L mg/L mg/L mg/L (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L)
25

2.8 2.8 1.4 1.7 1.6 1.2 2.0 ND BLQ ND ND ND ND ND

2.6 1.8 1.0 ND BLQ ND ND ND ND ND ND ND ND ND

BLQ 1.3 2.0 1.3 1.4 1.1 2.4 ND BLQ ND ND BLQ ND ND

1.4 2.4 1.8 BLQ 2.3 1.3 10.6 BLQ BLQ ND ND BLQ ND ND

9.6 4.3 24.6 19.5 1.8 1.6 45.6 BLQ BLQ 1.0 BLQ BLQ ND <1.0

39.5 33.3 30.1 21.5 ND 30.4 31.3 1 1.1 BLQ BLQ ND BLQ <1.0

43.3 9.6 13.1 4.6 30.8 8.8 28.1 1.1 BLQ ND ND 2.1 ND <1.0

25.2 3.3 11.1 3.7 3.5 2.9 5.2 BLQ BLQ ND ND ND ND ND

10.7 2.7 2.5 3.2 2.6 3.0 4.6 BLQ BLQ ND ND ND ND ND

6.1 2.5 2.0 2.7 1.8 2.8 4.6 ND ND ND ND ND ND ND

4.2 1.1 1.0 1.3 1.7 1.6 3.7 ND ND ND ND ND ND ND

1.2 BLQ ND 1.8 BLQ 1.2 1.1 ND ND ND ND ND ND ND

1.3 1.9 0.9 3.6 BLQ 1.4 2.6 ND BLQ ND ND ND ND ND

5.8 6.8 6.5 22.6 BLQ 1.2 7.5 BLQ BLQ BLQ BLQ ND ND ND

18.1 15.2 16.2 27.0 3.4 1.9 13.3 BLQ BLQ BLQ BLQ BLQ ND <1.0

17.6 16.5 14.1 11.8 24.1 14.8 35.2 BLQ BLQ BLQ BLQ 2.7 1.7 4.0

2.9 1.2 0.9 1.0 2.1 1.7 2.7 BLQ BLQ ND ND 2.5 1.5 1.3

1.3 BLQ ND 0.9 1.8 1.3 3.3 BLQ ND ND ND BLQ ND 1.1

1.8 ND ND ND B LQ ND 1.1 ND ND ND ND ND ND ND

1 ND ND ND ND ND <1.0 ND ND ND ND ND ND ND

ND ND ND ND ND ND ND ND ND ND ND ND ND ND

1 BLQ ND ND 1.0 ND 1.4 1.4 1.3 1.9 1.2 11.2 17.6 15.0

2.7 ND 1.7 2.0 1.6 2.1 2.1 1.3 BLQ 1.4 1.0 1.9 10.7 11.3

3.1 2.5 2.1 1.6 5.8 3.4 2.8 1.1 0.9 1.0 1.0 3.4 4.8 3.3

ND 1.3 BLQ ND 3.6 2.4 1.3 1 BLQ BLQ BLQ 1.6 2.9 2.0

ND ND ND ND ND ND ND 1 BLQ BLQ BLQ 1.4 1.4 1.9

ND ND ND ND ND ND ND 1 BLQ BLQ BLQ 1.9 1.7 1.2

ND ND ND ND ND ND <1.0 0.9 BLQ BLQ BLQ 1.3 1.4 <1.0

ND ND ND ND ND ND ND 1 BLQ BLQ BLQ 1.1 1.2 2.0

ND ND ND ND BLQ ND ND BLQ BLQ BLQ BLQ BLQ 1.3 1.3

ND ND ND ND 4.4 ND ND BLQ BLQ BLQ BLQ 2.4 1.3 2.2

ND ND ND ND ND ND ND 0.9 ND BLQ BLQ 2.4 1.1 ND

ND ND ND ND ND ND ND 1.2 0.9 0.9 1.3 BLQ 5.0 5.3

ND ND ND ND ND ND ND 1 BLQ BLQ BLQ BLQ 7.0 8.1

ND ND ND ND ND ND ND 1.1 ND BLQ BLQ BLQ 3.2 5.6

ND ND ND ND ND ND 1.2 0.9 BLQ BLQ BLQ BLQ ND 2.2

ND ND ND ND ND ND ND BLQ BLQ BLQ BLQ ND ND 1.0

ND ND ND ND ND ND BLQ BLQ BLQ BLQ BLQ ND

ND ND ND ND ND ND ND 1 BLQ BLQ BLQ BLQ ND <1.0

ND ND ND ND ND ND ND 1 BLQ 1.8 BLQ ND ND <1.0

ND ND ND ND ND ND ND 0.9 2.1 BLQ BLQ BLQ ND <1.0

1.2 BLQ ND ND BLQ ND ND BLQ BLQ BLQ BLQ BLQ ND 1.3

ND ND ND ND ND ND ND BLQ BLQ BLQ BLQ BLQ ND <1.0

1.6 2.0 BLQ ND BLQ ND ND BLQ BLQ 0.9 BLQ 1.8 1.1 1.4

ND ND ND ND ND ND ND 1.2 ND BLQ 1.0 1.4 ND 1.5

1.1 2.2 0.9 1.1 3.3 1.9 5.5 0.9 1.1 1.0 1.0 2.7 7.8 5.3

ND ND ND ND ND ND ND 1.2 BLQ BLQ BLQ 1.0 1.9 1.4

ND ND ND ND ND ND ND 1.3 BLQ BLQ BLQ 1.0 1.9 1.1

ND ND ND ND ND ND <1.0 1 0.9 BLQ BLQ BLQ BLQ <1.0

BLQ 1.7 BLQ 1.9 2.2 1.2 3.4 1.2 BLQ ND BLQ 1.5 ND <1.0

4.2 2.3 1.5 3.6 2.0 1.6 3.5 1 BLQ ND BLQ 1.4 ND 1.3

4 1.4 1.5 3.5 2.2 1.8 1.9 1.1 BLQ ND BLQ 1.6 ND 1.2

2.8 0.9 1.5 4.5 1.0 1.2 2.6 BLQ ND ND 1.2 BLQ ND <1.0

ND B LQ ND 2.1 B LQ ND 1.0 ND ND ND ND ND ND ND

Well #

ML11-0

ML11-1

ML11-2

ML11-3

ML11-4

ML11-5

ML11-6

ML11-7

ML11-8

ML11-9

ML11-10

ML12-1

ML12-2

ML12-3

ML12-4

ML12-5

ML12-6

ML12-7

ML12-8

ML12-9

ML12-10

ML13-0

ML13-1

ML13-2

ML13-3

ML13-4

ML13-5

ML13-6

ML13-7

ML13-8

ML13-9

ML13-10

ML14-0

ML14-1

ML14-2

ML14-3

ML14-4

ML14-5

ML14-6

ML14-7

ML14-8

ML14-9

ML14-10

ML15-0

ML15-1

ML15-2

ML15-3

ML15-4

ML15-5

ML15-6

ML15-7

ML15-8

ML15-9

ML15-10

Table 4. Concentration Trends for Cr, TCE, cDCE and VC Over All Seven Sampling Sessions at Transects 1 and 3

ND = None detected

BLQ = Below level of quantitation (1 ppb)

Nov-96 Feb-97 Jun-97 Sep-97 Mar-98 Jun-98 Dec-98 Nov-96 Feb-97 Jun-97 Sep-97 Mar-98 Jun-98 Dec-98

c-DCE c-DCE c-DCE c-DCE c-DCE c-DCE c-DCE Vinyl Cl Vinyl Cl Vinyl Cl Vinyl Cl Vinyl Cl Vinyl Cl Vinyl Cl

(μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L)
26

Table 4. Concentration Trends for Cr, TCE, cDCE and VC Over All Seven Sampling Sessions at Transects 1 and 3

ND ND ND ND ND ND ND ND ND ND

ND ND ND ND 3.1 ND ND ND ND ND ND 2.5 ND ND

ND BLQ ND ND ND ND ND ND ND ND 4.1 ND

ND ND ND 1.5 ND ND ND ND ND ND ND ND

ND BLQ ND 24.6 ND ND ND ND ND 7.4 ND ND

13 16.5 21.6 49.0 3.2 ND 17.2 5.3 5.9 9.1 23.2 1.0 ND 6.4

49.3 52.2 42.9 19.2 40.7 11.3 31.3 30 29.7 14.3 25.9 3.1

48.1 31.5 39.4 26.8 80.2 53.9 42.2 29.1 17.7 23.2 20.9 54.8 31.7 32.4

34.1 14.1 14.9 9.7 59.9 48.6 19.9 7.5 13.6 14.5 42.5 28.1

4.1 7.4 12.0 11.8 45.5 33.7 14.8 5.3 6.8 24.5 27.4 41.6 20.0 38.8

2.2 2.1 6.3 7.3 20.9 17.4 2.8 3.6 10.4 11.9 41.6 33.6

1.7 6.6 1.7 7.9 1.2 7.8 12.4 BLQ BLQ ND ND ND 26.8 <1.0

1.3 1.0 1.0 1.8 ND 11.1 ND ND ND ND ND ND B LQ ND

ND 1.0 ND ND ND ND ND ND ND ND ND ND ND ND

8.2 15.2 7.2 1.8 3.2 ND 2.3 2.4 3.3 9.3 ND BLQ ND ND

47.8 64.9 25.1 57.6 19.3 ND 13.4 26 36.8 11.7 17.8 4.6 ND 5.8

28.5 23.3 23.6 22.3 21.8 25.2 49.9 16.3 16.3 12.7 11.2 10.5 4.9 19.5

7.3 3.3 7.3 6.2 10.7 50.2 35.2 4.1 2.9 6.3 3.8 9.8 20.8 23.3

2.2 2.3 3.6 3.1 4.8 19.9 7.1 1.3 3.4 8.3 8.7 11.3 20.0 27.8

1.3 1.3 5.1 4.4 3.5 6.1 6.0 BLQ BLQ 7.3 5.2 21.0 31.9 20.2

B LQ 1.1 ND ND B LQ 4.1 ND ND ND ND ND ND 25.7 ND

BLQ BLQ ND ND ND ND ND ND ND ND ND ND

1.3 BLQ ND ND ND ND ND 1.4 1.1 0.9 2.3 ND ND <1.0

6.5 26.5 6.3 2.6 7.5 ND 3.1 1.7 6.0 3.0 2.2 5.9 ND <1.0

13.4 26.5 3.4 BLQ 11.0 3.8 4.3 3.5 28.8 16.3 17.2 9.9 ND 14.2

10.6 27.1 7.0 2.2 37.1 12.0 7.2 5.3 7.2 14.5 4.8 35.2 23.2 9.5

13.8 1.8 3.2 1.3 5.9 8.2 7.6 5.5 2.0 2.9 1.7 7.2 5.4 18.3

8.2 8.7 2.9 2.2 5.1 3.3 3.3 3.4 2.7 2.3 3.0 15.0 21.6 17.0

3.3 1.8 1.2 0.9 2.3 6.2 1.5 1.2 1.1 2.1 1.6 7.5 14.3 13.0

1.4 1.9 2.0 1.4 5.1 3.2 2.9 BLQ 1.5 3.5 2.9 24.7 17.9 16.7

2.4 1.4 1.1 1.1 1.2 3.7 ND BLQ ND BLQ BLQ 1.0 22.9 2.2

3.7 1.1 ND ND ND ND <1.0 BLQ ND ND ND ND 1.4 <1.0

3.8 1.3 ND 1.1 ND ND <1.0 BLQ ND ND ND ND ND <1.0

ND ND ND ND ND ND ND 1.4 BLQ BLQ ND BLQ ND 2.1

6.4 24.0 3.1 1.2 1.3 ND <1.0 2.4 4.2 1.9 1.7 2.1 ND 5.2

16.4 18.1 5.1 3.7 8.2 7.3 4.7 5.7 4.4 1.7 2.4 2.3 ND <1.0

12.4 1.4 1.1 BLQ BLQ 1.3 1.0 5.6 2.2 3.6 1.4 2.5 ND <1.0

1.5 BLQ ND ND ND 1.2 ND 1.9 1.5 1.2 1.5 1.1 2.3 3.3

BLQ ND ND ND BLQ ND 1.1 1.4 1.9 1.4 1.3 3.1 2.1 3.5

BLQ BLQ ND ND ND 1.1 ND 1.2 1.7 1.3 1.3 1.5 4.0 3.7

1.7 0.9 ND ND 1.5 1.0 <1.0 1.4 1.5 1.6 1.4 3.9 4.0 4.9

1.3 1.1 ND ND BLQ ND ND 1.6 1.2 1.1 1.3 1.8 2.3 2.6

BLQ 1.6 ND ND ND ND ND BLQ 1.9 1.1 1.0 2.4 2.2 2.1

BLQ 2.0 ND ND ND ND ND ND 1.6 1.0 1.0 1.3 1.0 1.6

BLQ ND ND ND BLQ ND ND 1.1 ND BLQ 0.9 1.1 1.5 1.3

1.2 BLQ ND ND ND ND ND 1.3 3.2 1.6 1.7 ND 4.9 5.3

1.1 BLQ ND 1.0 ND ND ND 1.1 1.5 1.8 1.6 2.6 5.7 4.0

10.9 17.3 10.4 5.4 5.7 7.7 5 2.5 3.4 2.2 5.5 ND

6.5 22.4 9.0 5.2 10.5 5.3 2.1 2.2 3.7 3.0 1.9 3.3 BLQ 3.3

2 4.4 2.2 1.2 3.3 1.2 1.4 1.4 1.4 BLQ 1.5 ND

1.2 1.4 ND 1.0 BLQ ND 1.1 1.6 2.7 1.8 1.7 2.2 1.5 2.3

2.5 2.3 BLQ 1.4 1.8 BLQ 3 4.0 2.0 1.8 3.7 1.8

2.9 1.5 1.3 1.8 1.7 1.1 1.6 4.9 4.2 3.2 2.1 3.9 2.1 3.0

BLQ 1.0 1.2 1.9 BLQ 1.1 1.7 1.3 3.4 2.5 1.9 1.7 2.3 3.4

ND 1.3 1.8 3.1 BLQ BLQ 2.6 ND 1.6 1.7 1.4 BLQ BLQ 1.3

ML31-0

ML31-1

ML31-2

ML31-3

ML31-4

ML31-5

ML31-6

ML31-7

ML31-8

ML31-9

ML31-10

ML32-0

ML32-1

ML32-2

ML32-3

ML32-4

ML32-5

ML32-6

ML32-7

ML32-8

ML32-9

ML32-10

ML33-0

ML33-1

ML33-2

ML33-3

ML33-4

ML33-5

ML33-6

ML33-7

ML33-8

ML33-9

ML33-10

ML34-0

ML34-1

ML34-2

ML34-3

ML34-4

ML34-5

ML34-6

ML34-7

ML34-8

ML34-9

ML34-10

ML35-0

ML35-1

ML35-2

ML35-3

ML35-4

ML35-5

ML35-6

ML35-7

ML35-8

ML35-9

ML35-10

Well #

ND = None detected

BLQ = Below level of quantitation (1 ppb)

Nov-96 Feb-97 Jun-97 Sep-97 Mar-98 Jun-98 Dec-98 Nov-96 Feb-97 Jun-97 Sep-97 Mar-98 Jun-98 Dec-98

c-DCE c-DCE c-DCE c-DCE c-DCE c-DCE c-DCE Vinyl Cl Vinyl Cl Vinyl Cl Vinyl Cl Vinyl Cl Vinyl Cl Vinyl Cl

(μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L)
27

Table 5. Parameters Used in Ground-water Flow and FRAC3D Reactive-transport Simulations

CONTAMINANT PARAMETERS

TCE cDCE VC

Source Concentration1

 (μg/L) 300 286 65

Diffusion Coefficient2 (m2/d) 8.73 x 10-5 9.84 x 10-5 11.47 x 10-5

SIMULATION PARAMETERS

Simulation 1 Simulation 2 Simulation 3

kTCE (d-1) 9.62 5.96 5.96

kcDCE (d-1) 3.4 2.11 2.11

kVC (d-1) 10.61 6.58 6.58

Hydraulic conductivity3 (m/d) 100 100 100

Porosity 0.43 4 0.43 4 0.62 5

1 Source concentrations are taken from November 1996 data for Transect 2 (Figure 40)

2 Diffusion coefficients (20°

C) calculated using correlation equation (Wilke and Chang, 1955) 3 Estimated average hydraulic conductivity for granular iron zone (Figure 8)

4 Porosity measured in laboratory column experiments (O’Hannesin et al., 1995) 5 Porosity calculated assuming ρ b

 (Fe)=1.69 g/cm3 and granular iron occupies entire trench

Table 6. Simulated (FRAC3D) Travel Distance (cm) within the Barrier Before Contaminant Concentration Falls Below Target Concentration

Target

Concentration (μg/L)

Simulation 1 Simulation 2 Simulation 3

TCE 5 (MCL) 6 cm 8 cm 8 cm

cDCE 70 (MCL) 4 cm 4 cm 6 cm

VC 2 (MCL) 12 cm 12 cm 16 cm

VC 5 (Observed breakthrough) 8 cm 10 cm 12 cm

Table 7. Cr(VI) Concentration (mg/L) Trends Observed in Compliance Wells

Well information Sampling Date

Location Well Screen interval November

1996

February

1997

June

1997

December

1998

DOWNGRADIENT MW46 4.3 - 7.3 m BQL BQL BQL BQL

MW47 4.3 - 7.3 m BQL N/A BQL 0.01

MW49 4.3 - 7.3 m BQL BQL BQL BQL

MW50 7.6 - 9.1 m BQL BQL BQL 0.08

MW35D 16.1 – 19.1 m BQL BQL BQL 0.0

UPGRADIENT MW48 4.3 - 7.3 m 1.26 0.6 0.4 0.34

MW13 4.3 - 7.3 m 2.83 3.5 2.6 2.5

MW18 4.3 - 7.3 m BQL BQL N/A BQL

MW38 4.3 - 7.3 m BQL BQL BQL BQL

BQL: Below quantitation level (0.01 mg/L)

N/A: Not available

MCL: 0.05 mg/L
28

Table 8. TCE Concentration (μg/L) Trends Observed in Compliance Wells

Table 9. VC Concentration (μg/L) Trends Observed in Compliance Wells

Well information Sampling Date

Location Well Screen interval November

1996

February

1997

June

1997

December

1998

DOWNGRADIENT MW46 4.3 - 7.3 m 256 636 63.9 51.9

MW47 4.3 - 7.3 m 1.1 BQL 1.5 BQL

MW49 4.3 - 7.3 m 2.8 2.8 N/A BQL

MW50 7.6 - 9.1 m 41 3.4 156 290

MW35D 16.1 - 19.1 m BQL 0.9 BQL BQL

UPGRADIENT MW48 4.3 - 7.3 m 517 471 535 347

MW13 4.3 - 7.3 m 21.6 61.9 24 8.2

MW18 4.3 - 7.3 m 32.6 14 7.7 BQL

MW38 4.3 - 7.3 m BQL 1.3 0.9 BQL

BQL: Below quantitation level (1 μg/L)

N/A: Not available

Underlined italicized number indicates TCE concentration greater than MCL (5 μg/L) downgradient of barrier

Well information Sampling Date

Location Well Screen interval November

1996

February

1997

June

1997

December

1998

DOWNGRADIENT MW46 4.3 - 7.3 m 1.3 1.6 1.9 8.7

MW47 4.3 - 7.3 m 1.6 1.8 1.7 2.7

MW49 4.3 - 7.3 m 1.4 BQL NA 2.0

MW50 7.6 - 9.1 m BQL BQL BQL 2.9

MW35D 16.1 - 19.1 m BQL BQL BQL BQL

UPGRADIENT MW48 4.3 - 7.3 m BQL BQL BQL 5.8

MW13 4.3 - 7.3 m BQL BQL BQL BQL

MW18 4.3 - 7.3 m 2.1 1.3 BQL BQL

MW38 4.3 - 7.3 m BQL BQL BQL BQL

BQL: Below quantitation level (1 μg/L)

N/A: Not available

Underlined italicized number indicates TCE concentration greater than MCL (5 μg/L) downgradient of barrier
29

Figures
30

Approximate Scale (km)

0 2 4

Nixonton

Weeksville

Elizabeth

 City

REACTIVE

BARRIER

STUDY SITE

Figure 1. Location map showing U.S. Coast Guard Support Center, Elizabeth City, North Carolina.
31

Figure 2. (A) Plan view and (B) cross-sectional view of reactive barrier.

HANGAR 79

1 mg/L

1 mg/L

N

HANGAR 79

BUILDING 78

46 m

0.6 m

GRANULAR IRON BARRIER

Length = 46 m

Width = 0.6 m

Depth = 2-7.3 m

A

A'

0.2 m Asphalt pavement

0.6 m Coarse aggregate

0.6 - 1.2 m Excavated 

 natural soils

Iron Filings

A A'

CROSS-SECTION A-A'

(A)

(B)

Plating

Shop

0 1 m

2

3

4

5

6

7

Depth (m)

0

1

0.05 mg/L

1.0 mg/L

1.0 mg/L

0.05 mg/L

Cr(VI) Plume

Groundwater

Flow Direction

0.05

mg/L

0.05

mg/L
32

Figure 3. Orientation of monitoring wells with respect to barrier and groundwater flow direction.

11

12

13

14

15

21

22

23

24

25

31

32

33

34

35

MULTILEVEL

SAMPLING

BUNDLE/WELL

PASQUOTANK RIVER

CHROMIUM PLUME

Groundwater

Flow direction

N

REACTIVE BARRIER

composed of iron filings

Not-to-Scale

Well Cluster

Multilevel Bundle
33

Figure 4. a) Reductive β-elimination, and (b) hydrogenolysis reaction steps in degradation of TCE (after Arnold and Roberts, 1997).

Cl

C C

Cl H

Cl H

C C

Cl

H H

H

C C

Cl

Cl H

Cl

C C

H

H H

H

C C

H

H H

Cl

C C

Cl

Cl H

H

C C

H

H H

H H

Cl C C H

H C C H

TCE

trans 1,2-DCE cis 1,2-DCE 1,1 DCE

VC

Ethene

Ethane

Acetylene

Chloroacetylene

(a)

(a) (a)

(b) (b) (b)

(b) (b)

(b)

(b)

(b)

(b)

(b)
34

Figure 5. Plan view map showing compliance well, bundle and well cluster locations relative to granular iron barrier and Cr plume (June 1994

data).

0 10 m

Approx. Scale

MW13

MW18

MW49

MW46

MW47

MW50

MW48

MW35D

MW38

2.80

BUILDING 78

HANGAR 79

1

m

g/L

1

m

g

/L

0.05

mg/L

Plating

Shop

0.05

mg/L

ML35

ML34

ML33

ML32

ML31

ML15

ML14

ML13

ML12

ML11

WC25

WC24

WC23

WC22

WC21

ML

MW

WC

Compliance well

(5 - 10 ft. screen)

Multilevel bundle

(6 in. screens)

Well cluster

(6 in. screens)

N

Groundwater

flow direction
35

Figure 6. Schematic of multilevel bundle.

0

1

2

3

4

5

6

7

8 ML11-CS

ML11-1

ML11-2

ML11-3

ML11-4

ML11-5

ML11-6

Ground Surface

Depth (m below ground surface)

Bundle Point Depth(m)

0 (CS) 7.0

1 6.5

2 6.0

3 5.5

4 5.0

5 4.5

6 4.0

7 3.5

8 3.0

9 2.5 

10 2.0

1/2" Sched 80

PVC Centerstock

3/16" OD x 1/8" ID

Teflon tubing

6" Screen
36

Figure 7. (a) Schematic and (b) picture of organic sampling manifold developed at the University of Waterloo.

1

2

3 3

2

1

INLET PORT

(Line from well)

OUTLET PORT

(Line to pump)

40 mL vial

Chlorinated

Aliphatics

40 mL vial

Chlorinated

Aliphatics

(duplicate)

60 mL vial

Dissolved

Gases

15 mL vial

Chlorinated

Aliphatics

(UW duplicate)

A B

Vials are clamped in place

3-way valves (A and B) and Bypass line allow removal of sample vials 

without interrupting groundwater flow

Storage loops supply extra water to ensure no headspace in sample

vials

Line in from

Monitoring well

Line out to 

peristaltic pump

Storage 

 loop

(b)

(a)
37

Figure 8. (a) Distribution of hydraulic conductivity (m/d) in transect 2, (b) 2D simulation domain and boundary conditions and (c) flow

pathlines.

(a)

(c)

Depth (m)

7.0

4.0

5.0

6.0

2

2

8

6

1

4

1

0.02 6

0.08 2 17

0.01 196

5 5

99 100 14

9 27 107

0.2 82 97

2

8

5

7

16

5

0.1-1

10-100

100+

1-10

Approximate location of iron wall

3.2 m

0.0 m

0.0 m

2 m/d

7 m/d 7 m/d 100 m/d 0.1 m/d 0.1

No-flow boundary

impermeable base

constant head boundary

constant head boundary

3.5 m

(b)

Groundwater flow pathlines

Low Hydraulic conductivity zones

8
38

Figure 9. Sodium and chloride concentrations (mg/L) in (a) transect 1, (b) transect 2 and (c) transect 3 (November 1996 (Day 150) - 0.45 ìm

filtered samples).

-6

-4

-2

18

27

31

33

43

63

35

32

23

12

15

21

30

41

69

69

43

8

8

7

5

12

27

42

56

33

46

28

15

7

9

16

28

24

56

61

50

25

24

24

21

19

15

15

21

36

39

57

57

39

11

14

11

25

26

-6

-4

-2

6 9

9 5

7 7

2 5

5 9

123

6 0

1 4

1 9

2 2

1 8

9

9

9

7 5

7 1

1 6

1 6

1 4

1 3

1 2

1 0

9

8

3 9

6 8

120

120

2 8

1 6

2 0

2 0

4 3

3 2

9

2 9

5 6

6 6

101

120

3 8

4 0

2 5

2 0

1 7

2 2

111

2 0

1 9

1 8

1 5

1 5

9

7

-7

-6

-5

-4

2 1

3 5

5 0

8 4

138

4 1

1 8

4 4

5 3

103

2 0

4 6

7 3

104

11

5 9

7 8

107

2 3

1 5

1 2

1 2

9

1 7

8 5

2 7

9 8

4 2

18

16

46

69

77

86

29

14

18

19

13

7

5

8

8

9

67

112

85

29

24

18

17

15

8

5

13

30

59

40

69

37

22

12

12

22

29

39

43

51

80

70

63

19

181

9

16

19

33

87

95

79

23

18

24

26

70

143

83

30

21

15

11

44

47

27

110

24

14

11

42

10

51

116

68

38

14

12

14

29

107

66

48

7

67

117

74

83

10

5

17

16

24

36

62

61

111

94

55

69

49

4

5

6

7

10

32

83

99

64

45

5

3

5

6

6

7

11

14

57

96

52

3

4

6

7

8

9

12

16

24

56

60

4

4

26

39

26

16

14

31

105

70

51

Sodium Chloride

(a)

(b)

(c)

Depth (m) Depth (m) Depth (m)

Groundwater flow direction 0 50 cm

0

3 0

60

90

120

150

Cl 

(mg/L)

0

25

50

75

100

125

Na 

(mg/L)

Wall Wall

463

283

475

424

475

273

393

117

255

151

142

186

-21

204

-51

34

-24

-136

-144

-78

-157

257

289

303

324

345

356

295

403

518

542

376

303

218

494

437

83

196

540

206

-116

-436

-315

-202

-234

-554

-568

-583

-583

-563

-401

262

-124

-460

-40

86

136

553

574

565

578

517

434

487

428

439

180

350

402

-261

15

-33

486

400

293

-550

187

-379

-228

-77

456

433

255

383

396

-6

-4

-2

456

415

409

478

385

134

421

344

73

-341

-382

-583

-396

-587

-348

-585

-467

-532

-496

-472

470

145

-268

190

247

-7

-6

-5

-4 364

441

284

437

294

441

377

224

308

142

-94

70

2

465

-20

268

-372

172

-216

-105

-319

-361

-480

-474

-499

-316

-509

-166

408

392

385

347

220

230

389

406

526

472

508

499

438

11

451

369

110

229

-393

-84

-200

103

87

-541

-121

-355

-347

197

44

-197

290

265

-6

-4

-2

November 1996 (Day 150) February 1997 (Day 240)

(a)

(b)

(c)

Depth (m) Depth (m) Depth (m)

Groundwater flow direction 0 50 cm

-600

-400

-200

0

200

400

-600

-400

-200

0

200

400

-600

-400

-200

0

200

400

Wall Wall

400

400

Figure 10. Eh values (mV vs. SHE) in (a) transect 1, (b) transect 2 and (c) transect 3 (November 1996 and February 1997).
39

Figure 11. Eh values (mV vs. SHE) in (a) transect 1, (b) transect 2 and (c) transect 3 (February 1997 and December 1998).

Figure 12. pH values in (a) transect 1, (b) transect 2 and (c) transect 3 (November 1996 and February 1997).

(a)

(b)

(c)

Depth (m) Depth (m) Depth (m)

Groundwater flow direction 0 50 cm

-600

-400

-200

0

200

400

-600

-400

-200

0

200

400

-600

-400

-200

0

200

400

327 83

54

61

-34

-49

96

148

206

176

26

-146

-160

-153

-14

-121

-121

-150

-477

-539

-554

-449

477

463

474

414

244

224

475

485

87

196

406

-264 244

13

148

22

475

-541

-200

-551

-561

-407

-511

462

468

423

444

402

418

407

454

134

187

295

-296

33

21

14

64

271

-356

144

-170

-44

-66

-73

244

59

-34

315

93

65

December 1998 (Day 900)

Wall

463

283

475

424

475

273

393

117

255

151

142

186

-21

204

-51

34

-24

-136

-144

-78

-157

257

289

303

324

345

356

295

403

518

542

376

303

218

494

437

83

196

540

206

-116

-436

-315

-202

-234

-554

-568

-583

-583

-563

-401

262

-124

-460

-40

86

136

553

574

565

578

517

434

487

428

439

180

350

402

-261

15

-33

486

400

293

-550

187

-379

-228

-77

456

433

255

383

396

February 1997 (Day 240)

Wall

68

284

316

48

62

63

66

-439

429

422

441

456

234

200

-92

86

-552

-539

-6

-4

-2

5.91

6.01

5.96

6.10

6.23

6.35

6.29

6.23

7.01

9.15

9.80

10.43

10.27

10.36

10.49

10.49

10.11

10.03

10.02

9.91

6.06

7.66

7.34

6.38

6.43

-7

-6

-5

-4 6.94

6.48

6.29

6.40

7.97

7.84

7.36

6.43

7.41

7.49

8.68

8.64

9.50

6.51

6.50

7.41

9.53

7.13

9.57

8.60

9.26

9.18

9.31

9.28

9.43

9.73

9.75

9.34

7.32

7.88

7.71

7.82

8.01

7.83

8.08 5.7

6.7

5.7

5.5

5.7

7.6

5.8

9.2

10.2

6.4

10.2

8.6

10.9

7.1

11.6

9.6

9.9

10.8

10.7

10.3

10.5

6.6

8.0

9.1

8.2

8.0

6.6

6.3

-6

6.01

5.91

5.89

6.15

6.13

6.47

6.02

5.89

6.01

6.75

6.49

10.22

7.60

7.77

9.97

10.24

10.69

9.26

8.36

7.65

6.81

7.73

7.04

6.66

6.62

-4

-2

6.00

6.10

5.95

5.84

6.15

6.41

6.55

6.02

5.95

6.06

6.78

6.53

8.72

10.54

7.60

8.60

8.96

9.31

11.74

10.66

9.39

9.19

9.15

8.45

7.22

6.31

7.36

6.60

6.78 6.00

November 1996 (Day 150) February 1997 (Day 240)

(a)

(b)

(c)

Depth (m) Depth (m) Depth (m)

Groundwater flow direction

5.92

5.96

5.83

6.31

6.46

6.55

6.10

6.07

7.37

6.60

7.08

9.01

9.73

10.62

10.72

10.65

10.30

10.92

10.57

10.32

10.28

10.14

8.35

6.15

8.07

7.96

6.71

7.01

6.71

0 50 cm

5.00

6.00

7.00

8.00

9.00

10.00

5.00

6.00

7.00

8.00

9.00

10.00

5.00

6.00

7.00

8.00

9.00

10.00

6.0 0

6.0 0

6.0 0

7.00

Wall Wall

9.00

9.00

9.00
40

Figure 13. pH values in (a) transect 1, (b) transect 2 and (c) transect 3 (February 1997 and December 1998).

Figure 14. Ferrous and total iron concentrations (mg/L) in (a) transect 1, (b) transect 2 and (c) transect 3 (November 1996 (Day 150) -

0.45 μm filtered samples for total iron).

(a)

(b)

(c)

Depth (m) Depth (m) Depth (m)

Groundwater flow direction 0 50 cm

5.00

6.00

7.00

8.00

9.00

10.00

5.00

6.00

7.00

8.00

9.00

10.00

5.00

6.00

7.00

8.00

9.00

10.00

6.04

5.98

5.99

6.06

5.96

6.25

6.36

7.34

7.62

9.74

9.39

8.33

7.12

6.69

9.93

9.92

9.99

10.25

9.87

9.70

9.85

7.25

6.08

6.60

6.91

7.37

7.05

6.93

6.84

6.76

9.83

9.06

9.84

9.08

8.52

8.55

9.05

8.52

8.69

10.29

7.71

7.66

7.33

7.28

11.3

10.79

9.70

8.70

7.90

8.36

8.61

December 1998 (Day 900)

5.72

5.95

5.79

6.24

6.33

6.63

5.87

5.91

6.92

6.49

6.44

9.59

9.31

9.84

10.19

10.19

6.92

10.32

9.89

9.82

10.00

10.16

7.96

8.70

8.68

6.54

6.50

6.77

Wall

5.7

6.7

5.7

5.5

5.7

7.6

5.8

9.2

10.2

6.4

10.2

8.6

10.9

7.1

11.6

9.6

9.9

10.8

10.7

10.3

10.5

6.6

8.0

9.1

8.2

8.0

6.6

6.3

6.10

5.95

5.84

6.15

6.41

6.55

6.02

5.95

6.06

6.78

6.53

8.72

10.54

7.60

8.60

8.96

9.31

11.74

10.66

9.39

9.19

9.15

8.45

7.22

6.31

7.36

6.60

6.78 6.0 0

February 1997 (Day 240)

5.92

5.96

5.83

6.31

6.46

6.55

6.10

6.07

7.37

6.60

7.08

9.01

9.73

10.62

10.72

10.65

10.30

10.92

10.57

10.32

10.28

10.14

8.35

6.15

8.07

7.96

6.71

7.01

6.71

6.00

6 .00

Wall

6.01

5.91

6.04

6.27

6.55

6.65

7.83

8.30

6.33

6.83

6.98

8.30

6.83

6.98

6.33

6.05

5.87

5.94

6.53

6.60

7.02

9.00

0.00

0.00

0.00

0.00

0.00

0.00

0.48

0.02

0.02

0.01

0.02

0.02

0.02

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.01

0.00

0.00

0.01

0.01

0.00

0.00

0.03

0.00

0.04

0.56

15.50

0.74

0.30

0.04

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.31

0.00

0.25

0.00

0.00

0.00

0.00

0.00

0.00

4.81

0.12

0.85

0.26

0.03

0.17

0.22

2.22

2.01

1.96

1.65

5.33

0.00

0.00

0.00

0.00

0.00

0.00

0.05

0.01

0.14

0.17

0.01

0.00

9.43

5.49

0.86

0.03

0.01

0.01 1.11

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.29

0.01

0.00

0.08

0.02

1.26

8.14

7.95

2.11

0.00

6.23

0.01

5.49

4.34

0.28

0.00

3.19

0.00

0.00

0.00

0.00

0.05

0.10

0.38

0.50

0.71

0.64

1.27

4.36

1.45

1.52

0.14

0.31

0.70

0.44

0.10

0.24

0.58

0.77

0.10

10.60

16.10 1.03

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.02

0.44

0.02

0.00

0.06

0.02

1.01

2.74

1.42

1.90

0.00

0.00

3.15

9.00

4.55

0.79

0.01

0.00

2.71

0.00

0.01

0.10

0.00

0.01

0.01

0.01

0.28

0.45

0.59

0.99

0.63

0.71

0.17

1.52

0.06

0.89

0.13

0.63

0.04

0.09

0.23

0.53

0.69

0.26

-6

-4

-2

0.50

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.01

0.00

0.00

0.00

0.00

0.00

0.00

0.08

0.00

0.23

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.04

0.00

0.00

0.00

0.00

0.00

0.13 -7

-6

-5

-4

Ferrous Iron Total Iron

(a)

(b)

(c)

Depth (m) Depth (m) Depth (m)

0

0.1

1

10

0

0.1

1

10

0

0.1

1

10

Groundwater flow direction 0 50 cm

Wall Wall

0.02

0.01

0.00

0.00

0.00

0.01

0.01

0.01

0.15

0.18

0.01

0.00

0.00

0.00

0.21

12.60

2.61

2.89

1.14

0.79

0.07

0.26

0.01

0.00

0.00

0.00

0.00

0.01

0.00

0.00

0.03

0.00

0.00

0.01

0.00

0.01

0.02

0.01

0.06

0.00

0.01

0.15

0.15

0.00

0.70

0.01

0.13

0.07

0.09

1.90

1.90

0.74

0.18

0.09

-6

-4

-2

1.70
41

Figure 15. Ferrous and total iron concentrations (mg/L) in (a) transect 1, (b) transect 2 and (c) transect 3 (December 1998 (Day 900) -

0.45 μm filtered samples for total iron).

0.00

0.00

0.00

0.00

0.00

3.29

6.34

0.54

11.10

10.30

0.03

0.66

0.11

0.49

0.03

0.03

0.03

0.00

0.02

0.07

0.02

1.85

0.70

0.02

0.00

0.47

2.43

0.00

0.00

0.00

18.7

0.02

0.02

0.02

0.01

0.01

0.01

0.01

0.02

0.01

0.01

0.01

0.01

0.00

0.01

0.00

0.58

3.40

1.38

0.75

0.05

0.00

0.00

0.31

0.10

0.37

0.06

0.01

0.00

0.00

0.00

0.34

0.00

0.00

0.00

1.45

5.27

7.53

4.38

0.00

11.2

4.74

5.04

0.01

0.01

0.01 2.57

0.00

0.00

0.00

0.00

0.00

0.01

0.00

0.00

0.00

0.00

0.02

0.01

0.00

0.25

3.62

0.01

0.03

0.00

2.92

4.28

3.44

14.10

13.50

0.04

0.02

0.03

0.00

0.01

0.02

0.19

0.10

1.27

3.90

0.51

0.10

0.03

0.06

0.10

3.81

5.00

2.45

0.09

7.09 0.19

0.00

0.00

0.02

0.12

0.00

0.00

0.00

0.01

4.63

3.60

0.01

2.70

2.30

2.29

0.01

0.01

0.01

0.01

0.01

0.63

0.22

0.01

0.63

0.11

0.01

0.12

2.92

2.44

-6

-4

-2

2.89

9.90

9.10

10.90

7.80

9.50

2.66

2.10

1.65 -7

-6

-5

-4

Ferrous Iron Total Iron

(a)

(b)

(c)

Depth (m) Depth (m) Depth (m)

0

0.1

1

10

0

0.1

10

0

0.1

1

10

Groundwater flow direction 0 50 cm

Wall Wall

0.00

0.00

0.00

0.00

4.20

2.60

0.00

0.00

5.60

4.21

0.02

0.03

0.02

0.00

0.01

0.01

0.02

0.10

0.01

0.01

0.00

0.01

0.80

1.45

0.02

0.03

2.54

0.37

0.02

-6

-4

-2

0.56

0.00

12.30

12.20

12.10

0.05

0.00

0.74 0.21

1
42

Figure 16. Saturation indices for a) ferrihydrite, b) goethite and c) Cr(OH)3 (a) in transect 1 (December 1998 (Day 900)).

Depth (m) Depth (m) Depth (m )

(a)

(b)

(c)

0 50 cm

-6

-4

-1

0

1

-1.2

-1.1

-0.7

0.9

1.4

0.9

-3.4

1.1

1.6

-7.2

-0.3

-1.0

-1.0

0.3

0.5

0.5 -2

-6

-4

4.5

4.6

5.0

6.6

7.1

4.7

6.0

6.3

6.2

4.7

5.4

6.4

-1.5

-2

-6

-4

-0.8

-0.1

-0.1

-0.8

0.6

1.8

1.0

-1.0

-0.7 -2

Ferrihydrite

Goethite

Cr(OH) (a) 3 

Wall

-1.2

-4.2

-4.3

-3.7

0.3

-5.8

0.6

-6.1

-3.0

-2.4 0.7

2.3

1.5

1.4

3.3

4.5

6.7 6.0

-0.1

-0.4

2.7

6.3

2.0

7.3

6.8

-0.1

-0.1

-0.2

-0.2

-0.5

1.6

1.7

-0.5

-0.9

0.0

-0.3

-0.2

-0.1

0.5

-0.2

-0.1 0.0

-1.0

-3.5

4.8

2.7

1.4

-0.1

-0.9

-1

0

2

-2

0

1

-1
43

Figure 17. Saturation indices for a) ferrihydrite, b) goethite and c) Cr(OH)3 (a) in transect 2 (December 1998 (Day 900)).

-0.9

Depth (m) Depth (m) Depth (m)

(a)

(b)

(c)

0 50 cm

-1

0

1

-7

-6

-5

-4

1.3

1.2

2.0

2.2

-0.6

-0.6

0.1

0.2

0.3

0.6

0.3

0.0

-0.3

1

2

0

-7

-6

-5

-4

3.5

4.7

4.6

4.8

4.7

6.0

6.0

6.5

6.4

6.5

6.0

6.2

5.5

5.8

-7

-6

-5

-4

0.8

0.7

0.8

0.3

0.5

-0.2

0.1

0.8

0.8

0.7

-4.1

-4.6

-4.7

-3.2

-2.2

-1.1

-1.1

-0.9

-1.0

0.3

0.3

Ferrihydrite

Goethite

Cr(OH) (a) 3

Wall

2.1

1.0

0.4

0.0

-0.2

2.8

2.0

-0.1

-0.4

-1.6

1.1.

0.5

0.0

0.8

 

 

1.7

0.3

 

0.3

0.3

0.3

0.3

1.2

0.0

0.1

-0.1

0.1

0.3 0.2

-0.5

0.2

0.1

0.3

0.3

0.3

-0.1

0.7

0

2

-2

4

7.9

7.7

 

5.6

5.3

4.1

6.8

6.2

6.1

5.7

5.5

6.7

6.5 6.5

6.5

6.4

1.6

1.1

1.0

2.5

5.7

8.5
44

Figure 18. Saturation indices for a) ferrihydrite, b) goethite and c) Cr(OH)3 (a) in transect 3 (December 1998 (Day 900)).

Depth (m) Depth (m) Depth (m )

(a)

(b)

(c)

0 50 cm

-6

-4

-0.9

-1.0

-1.0

-0.6

1.0

1.6

1.0

1.0

0.9

0.2

0.5

-1.5

-1.0

0.2

0.6

-2 1.3

-6

-4

4.8

4.7

4.7

5.1

6.7

4.7

6.0

6.3

7.0

4.2

6.2

5.2

5.9

-2

-6

-4

-0.7

-0.1

-0.1

-1.0

-1.4

0.3

-1.4

-1.1

-0.8 -2

Ferrihydrite

Goethite

Cr(OH) (a) 3

Wall

-1.2

0.4

-1.4

-0.2

0.6

-0.6

-0.1

0.1

0.6

-0.6 -0.5

0.9

6.6

6.7

6.1

4.3

5.1

4.5

7.3 6.3

5.1

5.8

6.3

5.6

5.5

6.6

6.7

-0.2

-0.2

-0.3

-0.3

-9.1

-1.3

0.2

0.3

-0.8

-0.8

0.3

-0.6

-0.1

-0.1

-0.1

-0.1

0.8 -0.5

-0.2

-1

0

1

0

3

0

1

-1
45

Figure 19. Saturation indices for amakinite and siderite (d) in (a) transect 1, (b) transect 2 and (c) transect 3 (November 1996 (Day 150)). Depth (m) Depth (m) Depth (m)

Groundwater flow direction

(a)

(b)

(c)

-6

-4

-2

0

2

-8

-6

-4

-2

0

2

-10

-8

-6

-4

-2

0

-10

-8

-6

-4

-2

-5

-4

-3

-2

-1

0

-6

-6

-4

-2

-2.0

-3.2

0.3

-0.6

0.1

1.6

1.2

-7.4

0.3

1.2

0.6

-0.5

0.4

-1.1

-2.2

-1.1

 

 

 

 

 

 -1.7

-4.5

-2.27

-7.3

-1.0

-0.0

-0.5

 

 -0.3

 

 -3.1

-2.9

 

 

-4.8 

-4.6

-3.7

-2.0

-2.8

-3.1

-1.6

0.7

2.4

0.1

-3.6

-0.1

-1.4

-0.9

-0.8

-6.7

-8.0

-3.8

-4.9

-0.6

-1.9

-2.1

-7.5

-1.3

-1.2

-2.6

-4.3

-2.7

-4.3

-5.9

-5.2

-6

-4

-2

-7

-6

-5

-4

 

 

 

 

 

 -5.8

-8.8

-3.6

-9.7

-2.6

-1.8

-3.0

 

 -2.3

 

 -5.7

-5.7

 

 

-8.0

-6

-4

-2

-9.3

-8.5

-6.8

-7.3

-7.8

-6.1

-3.2

-0.1

-0.6

-7.9

-3.6

-4.2

-5.1

-5.1

Amakinite Siderite 

0 50 cm

Wall Wall

Figure 20. Saturation indices for amakinite and siderite (d) in (a) transect 1, (b) transect 2 and (c) transect 3 (December 1998 (Day 900)). Depth (m) Depth (m) Depth (m)

Groundwater flow direction

(a)

(b)

(c)

-6

-4

-2

0

2

-8

-6

-4

-2

0

2

-10

-8

-6

-4

-2

0

-10

-8

-6

-4

-2

-6

-4

-2 0.7

-1.7

-0.1

0.1

-1.9

-1.0

-1.4

-2.9

 

 

-5.9

-5.1

-0.6

-0.3

-6.1

-0.7

-1.0

-1.3

-1.2

-3.4

-0.9

-1.7

-7.6

-10.0

-3.8

-4.4 -5.0

-3.3

-2.8

-6.6

-6

-4

-2

-7

-6

-5

-4

 

 

 

 

 

 

 

 

 

 

 

 

-6

-4

-2

-10.4

-10.3

-10.1

-9.4

-4.9

-4.4

-10.3

-4.6

-8.2

-10.5

-3.4

-1.5

-2.1

-4.9

-2.6

-3.8

-4.6

-5.6

Amakinite Siderite (d)

0 50 cm

Wall Wall

-0.9

-0.4

-0.4

-6.1

-0.1

-1.4

-1.4

-1.7

-1.5

-1.7

-9.5

-10.1

-10.2

-9.6

-9.8

-7.8

-9.6

-6.0

-2.5

-3.9

-1.9

-2.7

-6.8

-1.6

-2.3

-0.1 -1.7

-2.0

-2.3

-5.1 -5.7

-5.8

-5.1

-5.6

-3.6 -2.6

-0.6

0.3

-5.6

-5.2

-3.3

0.9

-0.9

0.2

-0.2

-2.4

0.6 -6.5

-1.4

-5.8

-5.8

-5.9

0.4

-0.4

-1.2

-1.3

-1.4

-2.7

-1.6

-2.1

-1.9

-2.4

-2.4

-4.2 0.5 -5.6

-9.1

-9.7

-9.6

-9.8

-10.0

-5.3

-4.7

-4.7

-4.6

-5.9

-1.4

-1.5

-3.3

-2.5

-6.3

-4.6

-3.4

-2.5

-3.0

-3.3

-3.4

-2.5

-2.3

-2.0

-1.4

-0.2

-0.6

-3.2

-3.1

-5.2

-3.8

-2.2

-4.2

-4.4

 

 

 

-3.2

-4.6

0.3

0.1

-2.4

-1.0

-2.2

-0.8

0.3

0.7

0.3

0.1

0.1

-2.3

-1.9

-1.9

-2.5

-1.1

-1.9

-0.3

-0.4

-4.8

-2.9

-1.6

-1.1

-6

-4

-2

0

2

-4.3 

 

 

 

 

 

-4.9

-5.4

-5.2

-5.6

-5.7

-1.0

-0.5

 

 

 

 

 

 
46

0 .70

0 .50

0 .60

0 .40

0 .00

0 .40

0 .30

0 .80

1 .00

0 .15

0 .15

0 .10

0 .30

0 .10

0 .15

0 .10

0 .25

0 .15

0 .50

0 .38

0 .15

0 .25

0 .15

0 .50

1 .00

November 1996 (Day 150) February 1997 (Day 240)

(a)

(b)

(c)

Depth (m) Depth (m) Depth (m)

Groundwater flow direction 0 50 cm

-6

0 .05

0 .15

0 .40

0 .00

0 .20

0 .40

0 .20

0 .20

0 .20

0 .20

0 .30

0 .30

0 .10

0 .05

0 .20

-4

-2

0 .50

0 .30

0 .50

0 .50

0 .25

0 .00

0 .00

0 .00

>1.0

1 .14

1 .19

0 .78

2 .25

2 .60

1 .51

0 .60

0 .05

0 .05

0 .05

0 .05

0 .63

1 .33

2 .39

1 .59

0 .05

0 .05

0 .08

0 .09

0 .33

0 .55

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .09

0 .16

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .09

0 .25

0 .55

-6

-4

-2 0 .10

0 .00

0 .07

0 .65

1 .48

1 .49

2 .74

1 .79

1 .03

1 .55

1 .55

0 .23

0 .00

0 .00

0 .00

0 .00

0 .00

2 .43

2 .02

0 .98

0 .91

0 .00

0 .00

0 .00

0 .00

0 .00

0 .00

0 .00

0 .00

0 .00

0 .00

0 .00

0 .07

0 .08

0 .00

0 .00

0 .00

0 .00

0 .00

0 .00

0 .00

0 .00

0 .00

1 .00

0 .26

0 .00

0 .00

0 .00

0 .00

0 .00

0 .00

0 .00

0 .00

0 .36

1 9

4 3

5 4

5 2

9 4

4 8

2 3

1

1 3

1 3

1 8

3 5

9 6

1 05

7 9

1 5

4

5

7

7

7

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1 5

1

1

1

1

5

1 0

6

4

4

7

-6

-4

-2 1 8

6

1 3

2 3

4 3

4 0

1 00

6 6

4 6

4 4

2 4

11

6

5

2

2

11

7 5

1 04

7 2

5 0

0

3

0

0

0

0

0

2

6

1 7

0

2

0

0

0

1

0

0

0

0

0

9

7

2

3 7

5 6

1 8

11

0

0

1 4

5

1 7

0

1

2

3

0

2 0

4 0

6 0

0.00

0.25

0.50

0.75

DO 

(mg/L)

NO (N)

(mg/L)

3

SO 

(mg/L)

4

Wall Wall

Figure 21. (a) Dissolved oxygen, (b) nitrate and (c) sulfate concentrations (mg/L) in transect 1 (November 1996 and February 1997).

Figure 22. (a) Nitrate and (c) sulfate concentrations (mg/L) in transect 2 (November 1996 and February 1997).

3 5

3 1

2 6

11 3

1 31

2 5

4

1

4

1

1

1

2

1

1

1

1 6

1

1

1

1

2

9

1

2

2

1

1 0

-7

-6

-5

-4 8

3 1

1 38

9 0

5 1

3 2

1 8

6

0

0

0

4

3 6

1 0

6

0

1 2

0

1 9

1 5

0

0

0

0

0

1 8

0

3

6

0

7

6

0

5

3

-7

-6

-5

-4 0 .23

1 .67

5 .48

2 .86

0 .67

0 .72

0 .73

0 .00

0 .00

0 .00

0 .00

0 .00

0 .58

0 .94

0 .00

0 .00

0 .00

0 .00

0 .00

0 .00

0 .00

0 .00

0 .00

0 .00

0 .00

0 .00

0 .00

0 .00

0 .13

0 .00

0 .00

0 .00

0 .00

0 .00

0 .00 0 .82

0 .72

0 .43

3 .37

4 .31

1 .17

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

November 1996 (Day 150) February 1997 (Day 240)

(a)

(b)

Depth (m) Depth (m)

Groundwater flow direction 0 50 cm

0

1

2

3

0

2 0

4 0

6 0

NO (N) 

(mg/L)

3 

SO 

(mg/L)

4

Wall Wall
47

Figure 23. (a) Dissolved oxygen, (b) nitrate and (c) sulfate concentrations (mg/L) in transect 3 (November 1996 and February 1997).

Figure 24. (a) Dissolved oxygen, (b) nitrate and (c) sulfate concentrations (mg/L) in transect 1 (February 1997 and December 1998).

-6

-4

-2 1 6

5

1 6

2 1

2 1

4 8

3 9

2 9

3 0

2 0

4

8

5

9

8

9

4 1

6 3

5 9

3 2

2 8

8

1 4

9

9

11

5

2

3

6

1 0

0

0

1 6

4

1

1

2

1

0

1

4

0

2

1 9

1 2

5

8

7

2

0

0

0

0

3

-6

-4

-2 0 .33

0 .00

0 .48

1 .06

0 .96

0 .74

1 .02

1 .40

0 .42

0 .36

0 .20

0 .00

0 .00

1 .03

1 .13

0 .30

0 .28

0 .26

0 .00

0 .00

0 .00

0 .00

0 .00

0 .66

0 .11

0 .00

0 .00

0 .00

0 .00

0 .00

0 .00

0 .00

0 .00

0 .00

1 .05

0 .00

0 .00

0 .00

0 .00

0 .00

0 .00

0 .00

0 .00

0 .00

0 .19

1 .33

3 .09

1 .43

1 .66

2 .87

3 .84

1 .13

0 .00

0 .00

0 .00

3

2 4

2 9

3 1

3 4

6 4

2 9

2 0

1 5

8

1 8

3

2 2

3 0

1 02

4 5

2 9

9

7

2 5

1 0

1 2

1

1 6

1 4

5

9

9

1 7

1 4

7

6

1

1 2

4

1

1

1

1

1

1

1

1

3

1

1

1

1

2

6

5

5

4

2

-6

-4

0 .15

0 .20

0 .50

0 .20

0 .40

1 .00

0 .10

0 .20

0 .20

0 .00

1 .00

0 .00

0 .00

0 .00

0 .30

0 .30

0 .05

0 .10

0 .05

0 .00

0 .10

0 .10

0 .10

0 .05

0 .10

-2

0 .00

0 .00

0 .00

0 .30

0 .30

0 .00

0 .00

0 .00

0 .30

0 .30

0 .00

0 .00

0 .00

0 .30

0 .30

0 .10

0 .20

0 .20

0 .00

1 .00

0 .15

0 .20

0 .50

0 .20

0 .40

> 1

November 1996 (Day 150) February 1997 (Day 240)

(a)

(b)

(c)

Depth (m) Depth (m) Depth (m)

Groundwater flow direction 0 50 cm

1 .31

0 .89

0 .72

0 .61

5 .71

8 .35

2 .13

1 .11

0 .05

0 .05

0 .28

1 .38

1 .00

0 .47

8 .04

4 .15

2 .09

0 .05

0 .05

0 .13

1 .33

1 .04

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .21

0 .10

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0 .05

0

1

2

3

0

2 0

4 0

6 0

0.00

0.25

0.50

0.75

DO 

(mg/L)

NO (N)

(mg/L)

3

SO 

(mg/L)

4

Wall Wall

(a)

(b)

(c)

Depth (m) Depth (m) Depth (m)

-6

-4

-2

-6

-4

-2

-6

-4

-2

Groundwater flow direction

0.70

0.50

0.60

0.40

0.00

0.40

0.30

0.80

1.00

0.15

0.15

0.10

0.30

0.10

0.15

0.10

0.25

0.15

0.50

0.38

0.15

0.25

0.15

0.50

1.00

February 1997 (Day 240)

1.14

1.19

0.78

2.25

2.60

1.51

0.60

0.05

0.05

0.05

0.05

0.63

1.33

2.39

1.59

0.05

0.05

0.08

0.09

0.33

0.55

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.09

0.16

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.09

0.25

0.55

19

43

54

52

94

48

23

1

13

13

18

35

96

105

79

15

4

5

7

7

7

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

15

1

1

1

1

5

10

6

4

4

7

Wall

0

1

2

3

0

2 0

4 0

6 0

0.00

0.25

0.50

0.75

DO 

(mg/L)

NO (N)

(mg/L)

3

SO 

(mg/L)

4

December 1998 (Day 900)

0 50 cm

0.5

0.6

>1.0

0.5

0.1

0.15

0.25

0.25

0.1

0.2

0.1

0.7

0.25

0.2

0.2

0.2

0.2

0.3

0.7

<0.1

0.2

35.3

41.4

50.7

96.1

97.4

42.4

40.9

17.1

13.1

6.3

1.9

<0.1

3.0

1.7

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

13.4

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

50.3

76.7

95.7

93.2

58.2

7.1

2.2

17.1

45.7

57.1

3.4

<0.1

<0.1

<0.1

<0.1

1.41

5.9

12.5

12.9

15.0

39.7

0.6

0.2

Wall
48

Figure 25. (a) Nitrate and (c) sulfate concentrations (mg/L) in transect 2 (February 1997 and December 1998).

Figure 26. (a) Dissolved oxygen, (b) nitrate and (c) sulfate concentrations (mg/L) in transect 3 (February 1997 and December 1998).

-7

-6

-5

-4

-7

-6

-5

-4

(a)

(b)

Depth (m) Depth (m)

Groundwater flow direction 0 50 cm

0

1

2

3

0

2 0

4 0

6 0

NO (N) 

(mg/L)

3 

SO 

(mg/L)

4

<0.1

0.5

<0.1

<0.1

0.4

1.2

<0.1

<0.1

1.02

<0.1

<0.1

<0.1

<0.1

0.27

0.27

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

December1998 (Day 900)

Wall

35

31

26

113

131

25

4

1

4

1

1

1

2

1

1

1

16

1

1

1

1

2

9

1

2

2

1

10

0.82

0.72

0.43

3.37

4.31

1.17

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

February 1997 (Day 240)

Wall

<0.1

0.53

0.11

15.0

10.7

5.9

6.9

7.1

2.1

29.7

32.6

18

29.2

43.5

64.6

86.6

30.4

9.6

1.59

0.46

0.33

0.98

2.4

(a)

(b)

(c)

Depth (m) Depth (m) Depth (m)

0

1

2

3

0

20

40

60

0.00

0.25

0.50

0.75

DO 

(mg/L)

NO (N)

(mg/L)

3

SO 

(mg/L)

4

10.6

31.4

30.5

42.7

73.2

40.4

33.5

16.0

3.8

7.5

<0.1

<0.1

2.8

1.3

<0.1

0.3

2.3

11.1

16.7

11.6

13.0

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

<0.1

1.8

0.5

28.5

11.7

30.9

33.3

48.1

31.2

12.0

3.4

6.6

1.1

<0.1

<0.1

0.5

5.3

4.8

9.8

December 1998 (Day 900)

0 50 cm

< 0 .1

< 0 .1

< 0 .1

< 0 .1

< 0 .1

< 0 .1

< 0 .1

< 0 .1

< 0 .1

< 0 .1

< 0 .1

< 0 .1

< 0 .1

< 0 .1

< 0 .1

< 0 .1

< 0 .1

< 0 .1

< 0 .1

< 0 .1

< 0 .1

< 0 .1

0.5

0.8

0.6

2.3

4.5

1.6

< 0 .1

< 0 .1

< 0 .1

1.6

1.0

1.4

0.9

3.7

5.3

2.0

1.5

< 0 .1

< 0 .1

< 0 .1

0.3

0.8

1.0

0.4

0.4

0.2

0.2

0.4

0.3

1.0

0.8

< 0 .1

< 0 .1

< 0 .1

0.4

< 0 .1

1.3

4.0

0.4

0.3

0.2

1.0

1.0

1.0

0.6

0.6

0.6

0.4

0.6

0.4

0.4

0.4

0.4

0.0

0.2

1.0

Wall

3

24

29

31

34

64

29

20

15

8

18

3

22

30

102

45

29

9

7

25

10

12

1

16

14

5

9

9

17

14

7

6

1

12

4

1

1

1

1

1

1

1

1

3

1

1

1

1

2

6

5

5

4

2

0.00

0.00

0.00

0.30

0.30

0.00

0.00

0.00

0.30

0.30

0.00

0.00

0.00

0.30

0.30

0.10

0.20

0.20

0.00

1.00

0.15

0.20

0.50

0.20

0.40

> 1

February 1997 (Day 240)

1.31

0.89

0.72

0.61

5.71

8.35

2.13

1.11

0.05

0.05

0.28

1.38

1.00

0.47

8.04

4.15

2.09

0.05

0.05

0.13

1.33

1.04

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.21

0.10

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

0.05

Wall

25.2

53.1
49

Figure 27. Saturation indices for ferrous monosulphide and mackinawite in (a) transect 1, (b) transect 2 and (c) transect 3 (November 1996

(Day 150) 0.45 μm filtered samples) In areas where Fe and SO4 are below detection, the Fe and SO4 concentrations specified for

the MINTEQA2 calculations were set at 0.001 mg/L (20% MDL) and 0.01 mg/L (10% MDL) respectively.

Figure 28. Cr(VI) concentrations in transverse cross-section through upgradient wells ML11, 21 and 31 in (a) November 1996 (Day 150) and

(b) February 1997 (Day 240).

Saturation Indices (Ferrous monosulphide) Saturation Indices (Mackinawite)

(a)

(b)

(c)

Depth (m) Depth (m) Depth (m)

Groundwater flow direction 0 50 cm

-6

-4

-2

-83

-87

-74

-41

-80

-67

-36

-86

-52

-47

-55

 

 

 

 

 

 

 

-18.1

-4.6

 

-29.6

 

3.3

-51.6

 

-64.2

-59.8

-77.2

-89.7

 -61.2

-106.0

 

 

-25.8

 

 

 -67.7

 

 

 

-89.5

-82

-87

-74

-41

-80

-67

-35

-85

-52

-46

-55

 

 

 

 

 

 

 -52

-65

-61

-6

-2

-4

-7

-6

-5

-4

-90

-62 

-107

 

 

-27

 

 

 -68

 

-80

-60

-40

Wall Wall

Dashed Lines indicate Dashed Lines indicate extrapolated contours extrapolated contours

-10

-5

0

-90

-60

-30

-60

-30

0

-40

-20

0

-78

3

-19

-5

-30

 

3

3 -60

-30

0

-90

0.00

0.00

0.00

0.00

0.04

0.11

0.34

1.25

0.54

1.45

0.09

0.00

0.06

2.70

0.45

0.48

1.05

0.00

0.00

0.00

0.00

0.00

0.00

0.09

0.10

0.08

0.08

0.06

0.00

-6

-4

-2

Depth (m)

0.00

0.00

0.00

0.00

0.04

0.07

2.00

2.50

1.00

0.98

0.11

0.02

0.35

4.00

2.50

2.00

1.00

0.00

0.00

0.00

0.00

0.00

0.00

0.03

0.31

0.20

0.06

0.02

0.00

-6

-4

-2

Depth (m)

0 2 m

ML31 ML21 ML11

(b)

(a)

ML31 ML21 ML11

0

1

2

3

0

1

2

3

Cr (VI)

(mg/L)

Cr (VI)

(mg/L)

?
50

Figure 29. Cr(VI) concentrations in transverse cross-section through upgradient wells ML11, 21 and 31 in (a) February 1997 (Day 240) and (b)

December 1998 (Day 900).

Figure 30. Hexavalent and total chromium concentrations (mg/L) in (a) transect 1, transect 2 and (c) transect 3 (November 1996 (Day 150) -

Total Cr results from 0.45 μm filtered samples).

Depth (m) Depth (m)

0 2 m

(b)

(a)

0

1

2

3

0

1

2

3

Cr (VI)

(mg/L)

Cr (VI)

(mg/L)

0.00

0.00

0.01

0.00

0.02

0.05

2.00

0.00

0.45

1.25

0.13

0.1

0.00

2.50

0.90

0.20

0.30

0.00

0.00

0.05

0.00

0.00

0.00

0.00

0.07

0.22

0.01

0.00

0.00

-6

-4

-2

ML31 ML21 ML11

0.00

0.00

0.00

0.00

0.04

0.11

0.34

1.25

0.54

1.45

0.00 0.09

0.00

0.00

0.00

0.00

0.00

0.09

0.10

0.08

0.08

0.06

0.00

-6

-4

-2

ML31 ML21 ML11

0.00

0.06

2.70

0.45

0.48

1.05 ? ?

-6

-4

-2

0.11

0.98

1.00

2.50

2.00

0.07

0.04

0.00

0.00

0.00

0.00

1.70

2.50

1.55

0.60

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

-6

-5

-4 0.02

0.35

4.00

2.50

2.00

1.00

0.00

0.00

0.00

0.00

0.00

0.00

1.80

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00 -7

-6

-4

-2

0.00

0.02

0.06

0.20

0.31

0.03

0.00

0.00

0.00

0.00

0.00

0.00

0.01

0.29

0.29

0.04

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.05

1.00

2.00

3.00

1.89

3.22

0.89

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.02

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.01

0.04

0.21

1.15

1.61

2.92

3.08

0.11

0.10

0.00

0.00

0.00

0.00

2.14

0.00

0.01

0.00

0.00

0.00

0.00

0.00

0.05

1.00

2.00

3.00

4.00

0.00

1.05

1.93

2.47

5.11

0.46

0.00

1.53

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.05

0.10

0.20

0.30

Hexavalent Chromium Total Chromium

(a)

(b)

(c)

Depth (m) Depth (m) Depth (m)

Groundwater flow direction 0 50 cm

Wall Wall
51

Figure 31. Hexavalent and total chromium concentrations (mg/L) in (a) transect 1, transect 2 and (c) transect 3 (February 1997 (Day 240) -

Total Cr results from 0.45 μm filtered samples).

Figure 32. Hexavalent and total chromium concentrations (mg/L) in (a) transect 1, transect 2 and (c) transect 3 (December 1998 (Day 900) -

Total Cr results from 0.45 μm filtered samples).

0.04

0.07

0.12

0.09

0.14

0.09

0.00

0.00

0.00

0.00

0.00

0.00

0.03

0.22

0.28

0.03

0.00

0.01

0.00

0.00

0.00

0.00

0.00

0.03

0.00

0.01

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.01

0.00

0.01

0.00

0.00

0.01

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.87

0.67

0.73

4.51

0.16

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.11

1.66

0.57

1.38

2.07

0.13

0.05

0.00

0.00

0.00

0.00

1.36

2.23

2.29

1.09

0.09

0.01

0.01

0.01

0.01

0.00

0.00

0.00

0.00

0.00

0.00

0.01

0.00

0.01

0.01

0.00

0.03

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.01

0.01

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.01

0.01

-6

-4

-2

0.00

0.06

0.08

0.08

0.10

0.09

0.00

0.00

0.00

0.00

0.00

0.00

0.02

0.25

0.26

0.03

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

-7

-6

-5

-4

0.00

2.70

0.06

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

-6

-4

-2

0.09

1.45

0.54

1.25

0.34

0.11

0.04

0.00

0.00

0.00

0.00

0.90

2.15

1.88

0.85

0.00

0.00

0.00

0.01

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.01

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.05

1.00

2.00

3.00

0.05

1.00

2.00

3.00

4.00

0.05

0.10

0.20

0.30

Hexavalent Chromium Total Chromium

(a)

(b)

(c)

Depth (m) Depth (m) Depth (m)

Groundwater flow direction 0 50 cm

1.05

0.48

0.45

Wall Wall

-4

-2

0.13

1.25

2.00

0.05

0.02

0.01

0.00

0.00

0.49

0.95

1.16

1.10

0.00

0.00

0.01

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.01

0.00

0.00

0.00

0.00

0.00

0.00

0.01

0.01

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

-6

-5

-4

2.5

0.9

0.2

0.3

0.01

0.02

-7

-6

-4

-2

0.01

0.00

0.00

0.00

0.00

0.01

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.05

1.00

2.00

3.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.01

0.00

0.00

0.00

0.00

0.01

0.00

0.00

0.00

0.00

0.00

0.05

1.00

2.00

3.00

4.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.05

0.10

0.20

0.30

Hexavalent Chromium Total Chromium

(a)

(b)

(c)

Depth (m) Depth (m) Depth (m)

Groundwater flow direction 0 50 cm

Wall Wall

0.1

0.00

0.00

0.17

0.68

0.51

2.03

2.13

0.08

0.08

0.52

1.05

1.58

1.13

0.00

0.00

0.28

0.37

0.00 0.00

0.21

0.16

0.05

2.0 0 1.0 0

3.24

1.37

0.00

!"!#

$"!!

%"!!

0.00

0.00

0.00

0.00

0.00

0.01

0.07

0.00

0.00

0.05

0.03

0.02

0.04

0.00

0.00

0.00

0.00

0.0

0.14

0.00

-6 0.45

0.00

0 .05

1.00

!"!#

!"!#
52

Figure 33. TCE concentrations in transverse cross-section through upgradient wells ML11, 21 and 31 in (a) November 1996 (Day 150) and (b)

February 1997 (Day 240).

Figure 34. cDCE concentrations in transverse cross-section through upgradient wells ML11, 21 and 31 in (a) November 1996 (Day 150) and

(b) February 1997 (Day 240).

3.8

3.7

9.2

71.2

65.4

45.8

36.4

15.4

28.6

22.8

62.1

301

260

34.4

37.3

430

2679

5.4

8.4

205

331

396

136

240

144

0

10

100

1000

0

10

100

1000

TCE

(μg/L)

TCE

(μg/L)

0.0

0.0

0.0

1.1

11.2

60.6

30.0

45.0

26.9

18.1

14.9

14.4

179

203

11.8

448

4.6

22.3

73.5

280

680

531

2.6

45.6

60.5

49.5

108

6.4

ML31 ML21 ML11

ML31 ML21 ML11

-6

-4

-2

Depth (m)

-6

-4

-2

Depth (m)

(b)

(a)

0 2 m

0

50

100

150

0

50

100

150

cDCE

(μg/L)

cDCE

(μg/L)

4.20

6.10

10.7

25.2

43.3

39.5

9.60

1.40

0.00

2.60

2.80

55.5

286.0

133.0

0.90

0.00

0.00

0.00

2.20

4.10

34.1

48.1

49.3

13.0

0.00

0.00

0.00

0.00

0.00

1.10

2.50

2.70

3.30

9.60

33.3

4.30

2.40

1.30

1.80

2.80

17.8

179.0

92.5

0.00

0.00

0.00

0.00

2.14

7.38

14.1

31.5

52.2

16.5

0.00

0.00

0.00

0.00

0.00

ML31 ML21 ML11

ML31 ML21 ML11

-6

-4

-2

Depth (m)

-6

-4

-2

Depth (m)

(b)

(a)

0 2 m
53

Figure 35. VC concentrations in transverse cross-section through upgradient wells ML11, 21 and 31 in (a) November 1996 (Day 150) and (b)

February 1997 (Day 240).

Figure 36. TCE concentrations in transverse cross-section through upgradient wells ML11, 21 and 31 in (a) February 1997 (Day 240) and (b)

December 1998 (Day 900).

0

10

20

30

0

10

20

30

VC

(μg/L)

VC

(μg/L)

0.00

0.00

0.00

0.00

1.10

1.00

0.00

0.00

0.00

0.00

0.00

26.6

65.4

10.8

0.00

0.00

0.00

0.00

2.08

5.30

19.9

29.1

31.3

5.30

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

1.10

0.00

0.00

0.00

0.00

0.00

8.20

7.40

0.00

0.00

0.00

0.00

3.58

6.80

7.54

17.7

5.90

0.00

0.00

0.00

0.00

0.00

39.5

30.0

?

ML31 ML21 ML11

ML31 ML21 ML11

-6

-4

-2

Depth (m)

-6

-4

-2

Depth (m)

(b)

(a)

0 2 m

0

10

100

1000

TCE

(μg/L)

0.0

0.0

0.0

1.1

11.2

60.6

30.0

45.0

26.9

18.1

14.9

14.4

179

203

11.8

2.5

448

3330

4.6

22.3

73.5

280

680

2000

531

2.6

45.6

60.5

49.5

ML31 ML21 ML11

-6

-4

-2

Depth (m)

(a)

0.0

1.2

24.0

26.8

28.2

114

47.6

7.1

10.5

21.3

320

673

11.0 0

10

100

1000

TCE

(μg/L)

7.7

ML31 ML21 ML11

-6

-4

-2

Depth (m)

(b)

0 2 m

3790

438

44.4

50.2

152

132

40.3
54

Figure 37. cDCE concentrations in transverse cross-section through upgradient wells ML11, 21 and 31 in (a) February 1997 (Day 240) and (b)

December 1998 (Day 900).

Figure 38. VC concentrations in transverse cross-section through upgradient wells ML11, 21 and 31 in (a) February 1997 (Day 240) and (b)

December 1998 (Day 900).

0

50

100

150

cDCE

(μg/L)

3.7

4.6

4.6

5.2

28.1

31.3

45.6

10.6

2.4

0.0

2.0

4.6

26.0

42.2

51.0

0.0

0.0

ML31 ML21 ML11

-6

-4

-2

Depth (m)

(b)

0 2 m

0

50

100

150

cDCE

(μg/L)

1.1

2.5

2.7

3.3

9.6

33.3

4.3

1.3

1.8

179

92.5

0.0

0.0

0.0

0.0

2.14

7.38

14.1

31.5

52.2

16.5

0.0

0.0

0.0

0.0

0.0

ML31 ML21 ML11

-6

-4

-2

Depth (m)

(a)

173

135

21.0

1.8

0.0

0

10

20

30

VC

(μg/L)

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

27.1

12.6

0.0

0.0

0.0

0.0

6.4

0.0

0.0

0.0

0.0

42.9

ML31 ML21 ML11

-6

-4

-2

Depth (m)

(b)

0 2 m

0

10

20

30

VC

(μg/L)

0.0

0.0

0.0

0.0

0.0

1.1

0.0

0.0

0.0

0.0

0.0

8.2

7.4

0.0

0.0

0.0

0.0

3.5

6.8

7.5

17.7

5.9

0.0

0.0

0.0

0.0

30.0

ML31 ML21 ML11

-6

-4

-2

Depth (m)

(a)

0.0

38.8

21.0

32.4

50.0
55

Figure 39. (a) TCE, (b) cDCE and (c) VC concentrations (μg/L) in transect 1, November 1996 and February 1997.

Figure 40. (a) TCE, (b) cDCE and (c) VC concentrations (μg/L) in transect 2, November 1996 and February 1997.

0.00

0.00

0.00

0.00

0.00

1.10

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.88

0.00

1.30

0.00

0.00

2.09

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.89

0.00

0.00

0.00

0.00

0.00

0.90

0.00

0.00

1.09

0.00

0.00

1.10

2.50

2.70

3.30

9.60

4.30

2.40

1.30

1.80

2.80

0.00

0.00

0.00

0.00

1.16

16.47

15.20

6.80

1.90

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

1.30

2.53

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.90

1.42

2.28

1.72

0.00

0.00

0.00

2.20

0.00

2.03

33.30

-6

-4

-2 0.00

0.00

0.00

0.00

1.10

1.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.90

0.00

0.00

1.00

0.90

1.00

1.00

1.00

1.10

1.30

1.40

0.00

0.00

0.90

1.00

1.00

0.00

0.00

0.90

1.10

1.00

1.20

0.00

0.00

1.10

1.00

1.20

1.00

1.30

1.20

1.20

0.00

0.90

-6

-4

-2 4.20

6.10

10.70

25.20

43.30

39.50

9.60

1.40

0.00

2.60

2.80

0.00

1.00

1.80

1.30

2.90

17.60

18.10

5.80

1.30

1.20

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

3.10

2.70

1.00

0.00

1.20

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

2.80

4.00

4.20

0.00

0.00

0.00

0.00

1.10

0.00

1.60

-6

-4

-2 3.80

3.70

9.20

37.70

45.80

36.40

15.40

28.60

22.80

0.00

0.00

0.00

0.00

0.90

11.10

43.10

43.20

27.10

17.30

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

1.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

2.90

1.30

0.00

0.00

0.00

0.00

0.00

0.00

0.00

10.80

65.40

71.20

5.00

5.00

0.00

0.00

0.00

1.10

11.20

60.60

30.00

45.00

26.90

18.10

14.90

0.00

0.00

0.00

0.00

0.00

18.84

38.88

30.70

31.10

9.20

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

1.34

1.17

1.14

0.00

0.00

0.00

0.00

0.00

0.00

12.23

5.00

5.00

November 1996 (Day 150) February 1997 (Day 240)

(a)

(b)

(c)

Depth (m) Depth (m) Depth (m)

0

20

40

60

0

10

20

30

0

0.5

1.0

1.5

Groundwater flow direction 0 50 cm

Wall Wall

26.6 0

65.40

10.80

0.00

0.00

0.00

0.00

1.00

0.90

1.10

1.70

5.10

1.30

1.80

0.00

1.20

3.50

1.70

1.40

0.00

1.20 -7

-6

-5

-4

2.00

2.00

17.80

179.00

92.50

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

13.04

0.00

0.98

0.93

10.4 3

8.66

4.63

1.27

1.02

44.00

55.50

286.00

133.00

0.90

0.00

0.00

0.00

0.00

1.30

7.70

4.90

1.40

0.00

0.00 -7

-6

-5

-4

-7

-6

-5

-4 6 2

301

260

3 4

3 7

430

2679

4.60

1.40

0.00

0.00

0.00

11.40

50.40 5.00

8.20

39.50

7.40

0.00

0.00

0.00

0.00

0.00

0.00

0.00

1.05

2.68

1.02

0.00

0.00

4.05

2.04

1.48

1.03

0.00

1.00

2.00

2.00

14.40

179.00

203.00

11.80

2.50

448.00

0.00

2.43

3.54

0.00

3.31

0.00

0.00

0.00

0.00

0.00

0.00

1.03

0.00

0.00

2.30

0.00

0.00

0.00

0.00

2.61

140.00

5.00

5.00

November 1996 (Day 150) February 1997 (Day 240)

(a)

(b)

(c)

Depth (m) Depth (m) Depth (m)

0

10

100

1000

0

50

100

150

0

10

20

30

Groundwater flow direction 0 50 cm

3330

Wall Wall

3.50

61.9

0.90

188

0.00

5652

2.70

0.00

0.00

0.00

11.40

2.80

1.60

0.00

0.00

0.00

0.00

0.00

0.00

0.00

2.40

3.60

0.00

46.50

14.90

1.70

2.40

2.30

0.00

4.30

118

11.9

19.9

0.00

0.00

0.00

0.00

23.10

2.70

5.40

2.00

0.00

1.20

4.90

2.60

0.00

3.30

0.00

1.80

0.00

13.1

2.10

2.00

0.99

1.89

9.09

0.00

2.11

1.23

1.47

0.00

6.67

62.26

2.37

14.47

4.06

7.92
56

Figure 41. (a) TCE, (b) cDCE and (c) VC concentrations (μg/L) in transect 3, November 1996 and February 1997.

Figure 42. (a) TCE, (b) cDCE and (c) VC concentrations (μg/L) in transect 1, February 1997 and December 1998.

2.14

7.38

14.11

31.50

52.20

16.50

0.00

0.00

0.00

0.00

0.00

0.0

1.1

1.3

2.3

3.3

23

65

15

1.0

1.0

6.6

1.30

1.07

1.30

1.94

1.80

8.72

1.81

27.12

26.52

27.30

0.00

2.00

1.59

1.10

0.91

0.00

0.00

0.00

1.37

18 .11

23.99

0.00

1.30

1.00

1.46

2.28

1.41

4.40

22.41

17.35

0.00

0.00

0.00

-6

-4

-2 2.20

4.10

34.10

48.10

49.30

13.00

0.00

0.00

0.00

0.00

0.00

0.00

0.0

1.3

2.2

7.3

29

48

8.2

0.0

1.3

1.7

3.80

3.70

2.40

1.40

3.30

8.20

13.80

10.60

13.40

6.50

1.30

0.00

0.00

1.30

1.70

0.00

0.00

1.50

12.40

16.40

6.40

0.00

0.00

0.00

2.90

2.50

1.20

2.00

6.50

10.90

1.10

1.20

0.00

-6

-4

-2 5.40

8.40

205

331

356

396

108

6.40

136

240

144

0.00

0.00

0.00

0.00

0.00

0.00

0.00

3.00

5.30

0.00

0.00

0.00

0.00

3.50

2.80

1.70

0.00

0.00

2.20

0.00

0.00

3.70

2.80

5.30

19.90

5.30

0.00

0.00

0.00

0.00

0.00

0.0

0.0

0.0

1.3

4.1

13

2.4

0.0

0.0

0.0

0.00

0.00

0.00

0.00

1.20

3.40

5.50

5.30

3.50

1.70

1.40

0.00

0.00

1.60

1.40

1.20

1.40

1.90

5.60

5.70

2.40

1.40

0.00

1.30

4.90

3.00

1.60

1.40

2.20

5.00

1.10

1.30

1.10

-6

-4

-2

29.10

31.30

26 2.00

3.58

6.80

7.54

17.73

30.00

5.90

0.00

0.00

0.00

0.00

0.00

0.0

0.0

0.0

3.4

2.6

1 6

37

3.3

0.0

0.0

0.00

0.00

0.00

1.53

1.14

2.70

1.96

7.23

6.20

1.14

1.60

1.92

1.20

1.53

1.65

1.92

1.47

2.23

4.43

4.20

0.00

1.60

3.40

4.21

4.03

2.69

1.40

3.70

2.51

1.48

3.22

0.00

0.0 28.77

2.00

2.00

4.55

22.26

73.49

280

680

2000

531

2.6

45.6

60.5

49.5

4.9

6.9

2.0

2.2

7.3

280

724

1390

4.67

104

80.9

2.14

1.55

3.20

3.05

1.66

7.14

0.00

22.56

4.93

22.50

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

8.29

41.75

0.00

0.00

0.00

0.00

1.46

0.92

0.00

2.75

16.88

0.00

0.00

23.05

5.00

5.00

November 1996 (Day 150) February 1997 (Day 240)

(a)

(b)

(c)

Depth (m) Depth (m) Depth (m)

0

10

100

1000

0

10

20

30

0

10

20

Groundwater flow direction 0 50 cm

2.00

Wall Wall

8.5

10.5

6.9

4.6

2.2

5.5

10.7

9.2

23.4

9.7

0.0

5.00

5.5

3.5

2.5

3.8

48

254

465

326

78.5

304

169

-6

-4

-2

-6

-4

-2

-6

-4

-2

(a)

(b)

(c)

Depth (m) Depth (m) Depth (m)

Groundwater flow direction 0 50 cm

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

1.1

1.3

4.0

0.00

0.00

0.00

0.00

0.00

2.2

1.3

2.0

0.00

1.2

1.9

2.0

3.3

11.3

15.0

0.00

1.3

0.00

0.00

0.00

0.00

1.0

2.2

5.6

8.1

5.3

0.00

0.00

1.2

1.3

0.00

0.00

1.1

1.4

5.3

1.5

1.4

3.7

4.6

4.6

5.2

28.1

45.6

10.6

2.4

0.0

2.0

0.00

0.00

1.1

3.3

2.7

35.2

13.3

7.5

2.6

1.1

0.00

0.00

0.00

0.00

0.00

0.00

0.00

1.30

2.8

2.1

1.4

0.00

0.00

0.00

0.00

0.00

0.00

0.00

1.20

0.00

0.00

0.00

1.0

2.6

1.9

3.5

3.4

0.00

0.00

0.00

5.5

0.00

0.00

31.3

0.00

0.00

0.00

1.20

24.0

28.2

114

47.6

12.7

7.1

0.00

0.00

0.00

2.3

0.00

58.6

41.7

33.8

19.0

12.0

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

1.0

2.1

1.8

1.9

1.2

0.00

0.00

0.00

0.00

0.00

 0.00

Decem,ber 1998 (Day 900)

0

20

40

60

0

10

20

30

0

0.5

1.0

1.5

Wall

0.00

0.00

0.00

0.00

0.00

1.10

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.88

0.00

1.30

0.00

0.00

2.09

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.89

0.00

0.00

0.00

0.00

0.00

0.90

0.00

0.00

1.09

0.00

0.00

1.10

2.50

2.70

3.30

9.60

4.30

2.40

1.30

1.80

2.80

0.00

0.00

0.00

0.00

1.16

16.47

15.20

6.80

1.90

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

1.30

2.53

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.90

1.42

2.28

1.72

0.00

0.00

0.00

2.20

0.00

2.03

33.30

0.00

0.00

0.00

1.10

11.20

60.60

30.00

45.00

26.90

18.10

14.90

0.00

0.00

0.00

0.00

0.00

18.84

38.88

30.70

31.10

9.20

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

1.34

1.17

1.14

0.00

0.00

0.00

0.00

0.00

0.00

12.23

5.00

5.00

February 1997 (Day 240)

Wall
57

Figure 43. (a) TCE, (b) cDCE and (c) VC concentrations (μg/L) in transect 2, February 1997 and December 1998.

Figure 44. (a) TCE, (b) cDCE and (c) VC concentrations (μg/L) in transect 3, February 1997 and December 1998.

-7

-6

-5

-4

-7

-6

-5

-4

-7

-6

-5

-4 (a)

(b)

(c)

Depth (m) Depth (m) Depth (m)

0

10

100

1000

0

50

100

150

0

10

20

30

Groundwater flow direction 0 50 cm

63.6

173

135

21.0

1.8

0.0

0.0

3.3 0.0

3.8

5.4

7.5

0.0

0.0

0.0

0.0

7.3

8.2

8.5

1.0

25.9

20.2

8.0

5.9

3.9

27.1

42.9

0.0

0.0

0.0

0.0

2.8

2.1

1.4

0.0

1.4

1.8

4.4

0.0

0.0

1.3

2.6

16.9

13.6

1.4

1.1

3.1

9.5

5.3

4.0

2.6

3.8

0.0

1.5

2.9

1.3

0.0

0.0

0.0

0.0

1.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

3.6

December 1998 (Day 900)

Wall

17.80

179.00

92.50

0.00

0.00

0.00

0.00

0.00

6.67

62.26

2.37

14.47

4.06

7.92

0.00

0.00

0.00

0.00

13.04

0.00

0.98

0.93

10.4 3

8.66

4.63

1.27

1.02

44.00

8.20

39.50

7.40

0.00

0.00

0.00

0.00

0.99

1.89

9.09

0.00

2.11

1.23

1.47

0.00

0.00

0.00

1.05

2.68

1.02

0.00

0.00

4.05

2.04

1.48

1.03

0.00

1.00

2.00

2.00

14.40

179.00

203.00

11.80

2.50

448.00

0.00

2.43

3.54

0.00

3.31

0.00

0.00

0.00

0.00

0.00

0.00

1.03

0.00

0.00

2.30

0.00

0.00

0.00

0.00

2.61

140.00

5.00

5.00

February 1997 (Day 240)

3330

Wall

1.2

4.2

14.6

14.3

7.3

1.2

1.4

242

0

0.0

0.0

0.0

438

3790

40.3

132

152

50.2

44.4

52.1

2.2

1.4

1.0

1.0

0.0

1.1

0.0

5.9

3.0

12.0

0.0

3.9

2.2

-6

-4

-2

-6

-4

-2

-6

-4

-2

(a)

(b)

(c)

Depth (m) Depth (m) Depth (m)

0

10

100

1000

0

10

20

30

0

10

20

Groundwater flow direction
58

Figure 45. Reactive transport simulations of the upper portion of the TCE plume in transect 2.

0 1 2 3

0 1 2 3

-7

-6

-5

-4

Depth (m)

Simulation Time: 

150 days

Simulation Time: 

40 days

Simulation Time: 

10 days

0 1 2 3

Actual TCE Profile 

at 150 Days - 

(November 1996)

Simulated extent of granular iron TCE

( g/L) μ

0 3.5 m

0

4

Model Domain:

TCE Source Zone

7 m/d 7 m/d (301 g/L) μ

2 m/d 0.1 100 m/d

0.1

Hydraulic conductivity

zones as indicated.

1

2

4

0

3

1

2

4

0

3

1

2

4

0

3

Approximate extent of granular iron 

inferred from trench dimensions

center of 6 in. screen (monitoring well)

Groundwater flow direction

10

100

1000
59

Figure 46. Ethene and ethane concentrations (μg/L) in (a) transect 1, (b) transect 2, (c) transect 3 (November 1996 (Day 150)).

Figure 47. Ethene and ethane concentrations (μg/L) in (a) transect 1, (b) transect 2, (c) transect 3 (December 1998 (Day 900)).

0

0

0

0

0

0

0

0

0

0

0

0

0

0

10

0

0

0

0

0

7

4

6

7

3

2

3

3

4

4

0

0

9

8

10

7

7

8

6

6

2

0

15

15

4

9

10

2

0

0

0

0

0

0

0

9

0

0

0

59

13

22

0

33

16

18

5

11

0

20

16

17

20

19

15

2

8

20

20

24

21

0

0

0

0

0

0

0

0

0

0

0

0

4

0

0

0

0

0

0

0

0

0

0

25

11

14

10

15

9

3

0

0

0

0

33

14

16

23

29

30

31

20

13

2

3

32

17

10

19

35

39

28

10

7

0

0

-6

-4

-2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

7

0

0

0

0

0

3

5

4

0

0

0

0

0

0

0

0

0

4

0

0

0

0

0

0

0

0

0

0

3

4

0

0

0

0

0

0

-7

-6

-5

-4

0

0

0

0

0

0

0

0

43

12

0

0

44

23

20

0

0

0

22

10

14

3

0

0

0

4

10

14

24

15

0

-6

-4

-2

0

0

0

0

0

0

0

0

0

0

0

4

0

0

0

0

0

0

0

0

0

0

12

12

22

14

22

11

4

0

0

0

0

8

19

22

26

20

17

19

10

7

0

0

9

10

8

27

36

27

11

5

3

0

0

Depth (m) Depth (m) Depth (m)

Groundwater flow direction

(a)

(b)

(c)

0

2

4

6

0

10

20

30

40

Ethene Ethane

0

10

20

30

0

10

20

30

40

0

10

20

30

40

0

5

10

15

0 50 cm

Wall Wall

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

9

9

3

2

0

0

1

1

0

1

1

5

8

4

2

0

0

0

0

0

7

2

8

3

0

0

0

0

11

8

9

5

3

2

2

11

10

13

12

9

12

0

0

0

0

0

0

0

0

8

0

0

0

2

2

0

0

0

3

5

3

3

0

0

0

5

14

5

3

3

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

7

8

4

6

3

5

0

0

0

0

0

4

7

10

7

8

8

8

4

5

8

6

6

9

5

5

2

-6

-4

-2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

10

10

0

0

0

0

0

0

0

0

2

5

2

0

0

0

0

0

0

0

0

3

5

0

0

0

0

0

-7

-6

-5

-4

0

0

0

0

0

0

0

9

14

14

8

8

8

0

0

0

0

22

0

3

0

0

0

9

8

7

0

0

0

0

-6

-4

-2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

5

7

8

8

7

7

0

0

0

0

0

0

4

9

6

6

6

5

3

2

2

.

3

4

5

7

3

1

1

0

Depth (m) Depth (m) Depth (m)

Groundwater flow direction

(a)

(b)

(c)

0

2

4

6

0

10

20

30

40

Ethene Ethane

0

10

20

30

0

10

20

30

40

0

10

20

30

40

0

5

10

15

0 50 cm

Wall Wall

0

0

0

6

8
60

Figure 48. Methane and TOC concentrations (mg/L) in (a) transect 1, (b) transect 2, (c) transect 3 (November 1996 (Day 150)).

Figure 49. TOC concentrations (mg/L) in (a) transect 1, (b) transect 2, (c) transect 3 (February 1997 and December 1998).

2.1

2.5

1.9

1.8

1.5

2.0

2.9

2.0

1.4

1.6

0.7

3.0

6.2

7.0

5.0

3.5

3.5

2.5

3.4

2.8

24.6

2.0

0.7

1.1

1.9

2.5

2.9

6.3

6.1

5.0

3.9

6.3

1.1

2.3

3.3

3.5

3.1

4.1

4.0

5.2

6.2

6.8

7.0

2.3

2.2

3.7

4.0

1.7

0.6

2.0

3.5

1.0

0.6

1.3

1.6

3.7

3.7

1.1

1.5

0.6

6.7

4.3

2.9

1.4

1.9

1.2

2.3

2.2

3.6

1.9

7.7

4.4

14.1

2.1

3.3

3.0

2.1

2.0

3.0

1.5

1.4

1.5

1.6

6.1

4.3

4.4

3.0

3.5

1.0

0.8

1.1

1.2

1.8

1.6

2.0

1.5

1.3

2.2

0.7

3.0

0.2

0.5

1.4

1.5

1.5

2.1

2.0

2.1

1.2

1.0

2.3

0.9

0.7

0.5

1.3

2.6

5.1

3.6

5.3

6.4

3.0

0.8

1.9

2.5

1.6

2.4

3.0

3.2

2.7

3.1

3.0

2.3

3.3

3.7

1.7

1.6

0.7

0.5

1.4

2.7

3.4

4.4

0.9

1.7

-6

-4

-2

0.0

0.0

0.1

0.1

0.0

0.0

0.0

0.0

0.1

0.9

0.1

0.1

0.1

0.8

31.0

3.5

3.0

1.2

3.0

0.0

2.7

1.4

6.8

3.4

4.2

6.4

6.7

0.3

1.8

1.1

1.5

2.5

5.6

1.1

1.3

1.0

1.6

1.7

1.0

1.1

1.2

0.4

0.6

2.0

3.5

8.9

3.3

0.1

0.1

0.2

0.0

-7

-6

-5

-4

0.1

0.0

0.1

0.1

0.0

0.1

0.2

0.1

1.9

0.8

2.2

0.3

3.5

0.7

0.9

2.5

0.2

0.7

3.1

2.1

3.1

2.4

1.8

1.5

0.0

0.3

2.5

1.2

2.0

2.5

0.0

-6

-4

-2

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

1.3

0.0

1.0

0.0

0.0

0.0

0.1

0.1

0.3

0.5

0.0

0.0

0.0

7.4

1.6

1.1

1.2

1.4

1.2

0.4

0.0

0.2

0.8

0.2

4.8

3.0

2.4

2.9

2.4

2.3

2.1

2.3

2.7

1.8

0.8

4.5

5.1

3.8

2.2

2.4

2.7

1.4

0.7

0.6

0.7

0.1

Depth (m) Depth (m) Depth (m)

Groundwater flow direction

(a)

(b)

(c)

0

1

2

3

Methane TOC

0

2

4

6

0

4

8

12

0

2

4

6

0

5

10

15

20

0

5

10

15

20

0 50 cm

Wall Wall

-6

-4

-2

-7

-6

-5

-4

-6

-4

-2

Depth (m) Depth (m) Depth (m)

Groundwater flow direction

(a)

(b)

(c)

February 97 (Day 240) December 98 (Day 900)

2.50

2.70

2.73

2.22

2.22

1.64

2.60

3.80

2.34

3.08

1.39

1.67

2.28

3.01

3.45

2.58

2.98

2.47

2.72

12.95

1.57

1.21

0.66

0.79

0.72

0.88

1.30

0.95

1.02

1.59

2.03

1.83

0.62

0.59

1.09

2.01

1.46

0.93

0.86

0.89

1.91

3.94

0.99

1.11

1.04

1.81

1.80

1.08

1.22

1.06

1.49

1.32

0.95

1.93

2.30

2.27

3.38

1.74

0.98

0.75

1.50

2.03

2.75

2.08

1.34

1.17

2.93

2.12

2.03

1.70

2.05

1.72

1.86

2.63

3.15

1.50

3.61

1.83

2.31

1.64

1.79

1.49

0.81

1.44

0.90

1.82

2.63

2.48

7.27

1.95

1.77

1.19

1.40

1.82

3.31

1.35

1.21

1.79

1.83

1.66

1.21

1.60

1.81

1.77

3.79

1.42

1.75

2.11

1.28

0.96

1.32

1.99

1.29

1.63

1.11

1.00

0.84

0

4

8

12

0

2

4

6

0

5

10

15

20

0 50 cm

Wall

2.10

4.23

1.40

1.25

1.99

1.58

1.75

1.66

1.67

2.16

2.17

1.82

2.01

2.08

1.85

2.04

1.68

1.60

1.97

1.74

2.48

2.28

2.23

1.84

3.59

9.94

14.8

1.66

4.57

1.17

2.32

4.18

8.78

3.50

6.73

30.3

3.57

22.2

2.91

1.51

1.39

1.31

1.15

2.38

1.76

1.15

1.21

8.74

26.8

2.29

2.29

5.27

3.43

2.91

1.25

1.98

1.37

2.41

5.15

0.93

4.44

1.02

1.09

2.71

2.80

1.82

2.67

3.66

0.62

< 0 .4

36.7

2.06

3.90

3.02

7.64

11.7

0.57

0.83

3.31

3.03

8.12

4.08

0.87

4.39

3.91

4.61

4.27

3.25

8.81

5.6

0.49

0.94

1.15

2.02

12.8

1.95

1.19

3.78

10.1

< 0 .4

2.34

1.90

12.6

0.97

1.70

1.46

1.26

2.11

11.5

2.93

16.8

3.38

3.48

1.86

1.24

5.67

5.51

1.86

4.08

5.69

2.21

2.57

18.9

0.48

2.11

0.89

8.40

1.53

1.63

< 0 .4

Wall

9.82

3.45

4.46

1.99

4.92

3.16

4.16

2.26

0.99

0.72

1.63 1.17

1.47

1.16

1.30

5.96

0.85

2.13

2.08

2.14

2.52

1.23

1.78

0.96

1.0 1.75

15.1

0.77 4.66 5.29
61

Figure 50. (a) Calcium, (b) magnesium and (c) manganese concentrations (mg/L) in transect 1 (0.45 μm filtered samples, November 1996

and February 1997).

Figure 51. (a) Calcium, (b) magnesium and (c) manganese concentrations (mg/L) in transect 2 (0.45 μm filtered samples, November 1996

and February 1997).

0 .1 4

0 .2 2

1 .0 5

0 .8 1

0 .0 8

0 .0 8

0 .0 7

0 .0 2

0 .0 1

0 .0 2

0 .0 0

0 .0 1

0 .0 1

0 .0 1

0 .0 2

0 .0 1

0 .0 1

0 .0 1

0 .0 0

0 .0 1

0 .0 1

0 .0 1

0 .0 0

0 .0 8

0 .1 6

0 .2 5

0 .1 0

0 .11

0 .0 7

0 .3 0

0 .4 5

0 .4 4

0 .6 9

0 .5 1

0 .2 0

0 .2 4

0 .2 1

0 .2 0

0 .2 1

0 .3 8

2 .6 5

3 .3 3

2 .7 2

1 .4 2

1 .0 9

0 .6 2

0 .4 1

0 .1 8

0 .0 6

0 .0 3

0 .0 5

0 .0 1

0 .0 1

0 .0 1

-6

-4

-2

-6

-4

-2

10.40

8 .6 9

23.30

30.30

7 .5 2

4 .6 6

5 .5 6

4 .9 0

4 .6 0

5 .1 7

4 .0 9

1 .9 8

1 .9 4

2 .5 0

4 .3 3

4 .2 3

2 .1 5

2 .2 4

1 .6 9

1 .6 9

1 .4 0

1 .8 2

1 .8 0

3 .9 2

8 .8 9

2 .9 3

3 .2 5

3 .2 6

0 .4 6

3 .7 6

10.50

10.40

23.50

17.20

7 .8 2

19.10

18.50

11 .7 0

10.70

16.10

32.10

32.60

39.90

29.00

29.80

21.50

15.50

13.00

10.30

11 .9 0

8 .7 8

6 .4 5

3 .5 5

1 .5 2

1 6

1 4

1 4

2 2

1 8

3 2

3 4

2 2

2 2

2 3

1 8

1 0

1 3

1 6

2 3

3 2

7

7

6

7

9

9

6

9

8

4

5

5

3

3

3

4

1

7

7

3

1

1

1

2

3

3

5

11

1

8

1

0

2

8

6

5

6

7

-6

-4

-2

6 .6 7

6 .5 5

11 .4 0

5 .5 4

8 .11

11 .4 0

6 .7 5

0 .3 4

0 .2 3

1 .7 8

0 .6 4

0 .0 0

0 .0 0

0 .0 0

2 .3 5

2 .1 0

0 .0 0

0 .0 0

0 .0 0

0 .0 0

0 .0 0

0 .0 0

0 .0 0

1 .2 5

5 .2 2

1 .5 4

1 .3 0

1 .2 9

0 .2 7

1 .9 6

3 .0 3

3 .0 2

5 .7 4

3 .9 6

2 .3 8

11 .0 0

11 .3 0

7 .5 6

8 .1 2

10.30

16.70

14.70

11 .0 0

11 .5 0

8 .9 8

6 .7 6

10.60

3 .2 2

3 .0 7

3 .9 1

3 .5 1

2 .1 2

0 .1 0

0 .1 0

9 .5

8 .3

9 .2

17.3

12.3

15.0

12.2

7 .3

6 .5

5 .6

6 .0

6 .1

9 .8

10.5

11 .3

9 .1

2 .5

2 .2

2 .4

2 .7

0 .6

5 .9

7 .1

7 .2

3 .9

0 .1

0 .1

0 .2

0 .0

0 .0

0 .0

0 .0

0 .0

3 .8

0 .6

0 .0

0 .0

0 .0

0 .0

0 .0

0 .0

0 .3

0 .4

6 .8

0 .4

3 .7

0 .2

0 .3

0 .9

1 .9

1 .5

1 .3

1 .3

1 .3

November 1996 (Day 150) February 1997 (Day 240)

(a)

(b)

(c)

Depth (m) Depth (m) Depth (m)

0

10

20

30

0

5

10

15

0

1

2

3

Groundwater flow direction

0 .2 2

0 .1 3

0 .2 7

0 .4 8

0 .3 7

2 .8 3

2 .7 9

1 .3 9

0 .9 4

0 .8 1

0 .5 4

0 .1 3

0 .2 8

0 .3 6

1 .2 0

1 .1 0

0 .1 0

0 .0 4

0 .0 3

0 .0 1

0 .0 1

0 .0 8

0 .11

0 .0 8

0 .0 3

0 .0 1

0 .0 1

0 .0 1

0 .0 1

0 .0 1

0 .0 1

0 .0 1

0 .0 1

0 .0 1

0 .0 1

0 .0 1

0 .0 1

0 .0 1

0 .0 1

0 .0 1

0 .0 1

0 .0 2

0 .0 4

0 .1 9

0 .0 7

0 .1 6

0 .0 6

0 .0 3

0 .1 8

0 .2 5

0 .1 8

0 .1 5

0 .0 8

0 .0 5

0 50 cm

Wall Wall

11

8

5

2 3

1 8

2 8

2 4

6

4

6

5

6

5

1 6

3

4

5

5

4

4

5

5

6

4

6

5

5

6

-7

-6

-5

-4

11 .1 0

8 .9 1

7 .8 7

15.70

21.30

27.50

21.90

6 .5 7

6 .5 5

4 .4 6

4 .3 9

6 .6 9

8 .9 0

7 .1 2

3 .6 1

6 .3 2

5 .1 9

5 .11

5 .0 0

3 .0 3

1 .9 8

2 .2 0

8 .8 3

9 .8 2

2 .0 1

0 .8 0

5 .8 7

7 .4 4

6 .5

4 .8

3 .3

15.9

13.5

14.8

10.2

2 .9

9 .7

0 .4

5 .7

6 .1

8 .7

3 .5

3 .8

2 .6

8 .6

0 .1

0 .0

0 .0

0 .0

2 .4

2 .0

0 .0

0 .4

0 .7

2 .6

2 .1

-7

-6

-5

-4

6 .5 4

5 .0 1

4 .3 9

10.20

14.50

15.50

10.60

3 .8 2

0 .6 5

14.30

0 .1 7

3 .6 1

8 .1 9

16.40

0 .0 0

5 .7 2

1 .3 2

10.70

0 .0 0

0 .0 0

0 .0 0

0 .1 8

0 .9 3

0 .9 9

0 .4 1

0 .6 2

1 .6 5

2 .3 5

November 1996 (Day 150) February 1997 (Day 240)

(a)

(b)

(c)

Depth (m) Depth (m) Depth (m)

0

10

20

30

0

5

10

15

0

0.5

1

1.5

Groundwater flow direction 0 50 cm

-7

-6

-5

-4

0 .1 0

0 .0 9

0 .1 2

0 .3 3

0 .4 3

1 .1 6

2 .4 0

0 .11

0 .0 1

0 .0 6

0 .0 1

0 .1 3

0 .0 8

0 .1 0

0 .0 2

0 .0 6

0 .0 2

0 .0 4

0 .0 1

0 .0 1

0 .0 1

0 .0 1

0 .0 4

0 .0 4

0 .0 1

0 .0 1

0 .1 4

0 .3 3

0 .1 0

0 .0 9

0 .1 7

0 .5 0

0 .3 5

2 .6 4

2 .7 1

0 .0 0

0 .0 8

0 .0 1

0 .0 4

0 .0 2

0 .0 9

0 .3 8

0 .0 2

0 .0 2

0 .0 3

0 .0 1

0 .0 0

0 .0 0

0 .0 0

0 .1 2

0 .4 8

0 .0 0

0 .0 1

0 .0 3

0 .4 0

0 .5 1

Wall Wall
62

Figure 52. (a) Calcium, (b) magnesium and (c) manganese concentrations (mg/L) in transect 3 (0.45 μm filtered samples, November 1996

and February 1997).

Figure 53. (a) Calcium, (b) magnesium and (c) manganese concentrations (mg/L) in transect 1 (0.45 μm filtered samples, February 1997 and

December 1998).

8

1 0

1 0

9

1 9

3 1

3 0

3 1

1 7

2 2

2 3

8

1 0

8

3 1

3 9

3 6

3 8

2 5

2 2

5

1 5

2 2

2 2

2 2

3 5

3 5

3 8

4 3

1 8

4

1 0

1 3

1 3

9

11

7

7

8

9

7

8

6

7

1 8

1 3

1 0

1 5

1 3

1 0

7

3

-6

-4

-2

5 .1 9

5 .9 6

5 .4 5

4 .8 4

6 .2 1

11 .9 0

16.30

13.00

10.50

6 .7 3

7 .2 9

5 .8

7 .0

5 .8

12.9

18.9

12.0

1 .9

1 .4

1 .2

1 .1

1 .4

2 .1 7

6 .7 8

10.00

6 .7 0

7 .2 5

4 .8 8

0 .7 2

1 .4 8

0 .6 2

2 .2 0

0 .3 5

0 .2 4

8 .1 5

9 .7 1

6 .6 6

1 .7 4

1 .9 2

1 .5 6

2 .3 2

2 .0 1

0 .8 2

1 .4 5

2 .8 9

1 .2 7

2 .4 2

6 .9 5

4 .0 8

5 .7 9

5 .6 6

4 .4 0

4 .4 8

1 .0 3

0 .8 2

4 .7

6 .0

5 .9

5 .8

12.6

19.5

17.7

13.8

7 .1

6 .9

6 .3

5 .2

5 .9

5 .1

22.4

16.2

9 .7

1 .7

1 .9

2 .3

2 .1

0 .5

1 .2

12.1

8 .6

10.8

1 .3

2 .6

3 .9

2 .9

1 .1

1 .6

0 .3

0 .3

10.2

8 .3

2 .2

4 .1

1 .7

1 .1

2 .0

1 .6

2 .1

1 .5

3 .3

1 .9

2 .5

11 .5

5 .8

4 .0

4 .6

4 .3

2 .4

1 .3

0 .8

-6

-4

-2

8 .6 7

10.20

9 .0 9

7 .9 8

9 .8 7

20.10

27.20

28.10

24.00

24.60

26.60

9 .5

12.2

9 .4

18.2

32.7

27.3

18.0

18.8

21.7

13.5

13.4

5 .5 4

10.10

16.00

15.80

20.30

25.00

34.30

20.40

5 .11

13.00

14.60

19.20

7 .6 4

8 .7 0

6 .4 6

9 .4 3

9 .3 3

5 .2 0

9 .7 6

7 .0 3

5 .3 7

6 .4 4

11 .6 0

8 .4 3

13.00

12.40

11 .5 0

13.90

4 .7 9

5 .9 8

32.50

November 1996 (Day 150) February 1997 (Day 240)

(a)

(b)

(c)

Depth (m) Depth (m) Depth (m)

0

10

20

30

0

5

10

15

0

0.25

0.50

0.75

Groundwater flow direction

0 .1

0 .1

0 .1

0 .1

0 .3

1 .2

0 .9

0 .9

0 .4

0 .4

0 .3

0 .1

0 .1

0 .1

0 .5

2 .6

1 .8

0 .3

0 .1

0 .0

0 .0

0 .0

0 .0

0 .2

0 .9

0 .8

0 .0

0 .0

0 .0

0 .3

0 .0

0 .0

0 .0

0 .0

0 .0

0 .0

0 .0

0 .1

0 .0

0 .0

0 .1

0 .1

0 .1

0 .1

0 .8

0 .0

0 .1

0 .3

0 .6

0 .6

1 .0

0 .9

0 .6

0 .2

0 .1

-6

-4

-2

0 .0

0 .0

0 .1

0 .1

0 .1

0 .9

0 .7

0 .7

0 .5

0 .3

0 .2

0 .1

0 .1

0 .1

0 .3

1 .0

1 .0

0 .3

0 .1

0 .0

0 .0

0 .0

0 .0

0 .2

0 .4

0 .5

0 .9

0 .2

0 .0

0 .1

0 .0

0 .1

0 .0

0 .0

0 .0

0 .1

0 .2

0 .1

0 .2

0 .1

0 .3

0 .2

0 .1

0 .1

0 .5

0 .1

0 .3

0 .1

0 .5

0 .7

0 .8

0 .7

0 .8

0 .1

0 .1

0 50 cm

1.00

Wall Wall

77.10

18.30

2 5

2 4

8 4

-6

-4

-2

-6

-4

-2

-6

-4

-2

February 97 (Day 240) December 98 (Day 900)

(a)

(b)

(c)

Depth (m) Depth (m) Depth (m)

0

10

20

30

0

5

10

15

0

1

2

3

Groundwater flow direction 0 50 cm

18.2

1 2

12.3

15.1

17.6

25.2

31.3

2 8

27.3

31.1

28.2

13.8

15.4

14.7

16.9

29.1

2 3

21.2

40.4

50.1

42.6

1.3

1.2

9.1

4.0

3.8

2.13

2.0

4.0

14.8

14.9

3.4

2.5

7.2

10.8

5.3

6.7

4.8

4.1

5.5

9.1

25.8

7.1

2.6

3.3

2.4

0.1

1.9

10.5

17.1

17.1

16.2

32.1

11.9

8.1

8.7

11.9

12.9

11.6

10.8

8.5

9.2

9.0

12.7

8.96

10.9

11.6

10.7

7.1

5.1

4.6

4.9

5.3

3.7

3.4

9.8

5.3

0.8

0.1

0.1

0.2

0.1

0.0

0.0

1.3

0.0

0.3

0.8

0.2

0.0

0.0

0.0

0.0

1.3

1.1

4.2

1.4

2.4

0.1

0.0

0.9

2.2

1.3

1.4

1.0

1.9

0.2

0.2

0.3

0.3

0.3

2.4

2.7

1.6

1.0

1.0

0.7

0.2

0.4

0.3

0.9

1.1

0.1

0.1

0.1

0.2

0.0

0.0

0.1

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.2

0.3

0.4

0.3

0.2

0.0

0.0

0.2

0.2

0.1

0.1

0.1

0.1

Wall

1 6

1 4

1 4

2 2

1 8

3 2

3 4

2 2

2 2

2 3

1 8

1 0

1 3

1 6

2 3

3 2

7

7

6

7

9

9

6

9

8

4

5

5

3

3

3

4

1

7

7

3

1

1

1

2

3

3

5

11

1

8

1

0

2

8

6

5

6

7

9.5

8.3

9.2

17.3

12.3

15.0

12.2

7.3

6.5

5.6

6.0

6.1

9.8

10.5

11.3

9.1

2.5

2.2

2.4

2.7

0.6

5.9

7.1

7.2

3.9

0.1

0.1

0.2

0.0

0.0

0.0

0.0

0.0

3.8

0.6

0.0

0.0

0.0

0.0

0.0

0.0

0.3

0.4

6.8

0.4

3.7

0.2

0.3

0.9

1.9

1.5

1.3

1.3

1.3

0.22

0.13

0.27

0.48

0.37

2.83

2.79

1.39

0.94

0.81

0.54

0.13

0.28

0.36

1.20

1.10

0.10

0.04

0.03

0.01

0.01

0.08

0.11

0.08

0.03

0.01

0.01

0.01

0.01

0.01

0.01

0.01

0.01

0.01

0.01

0.01

0.01

0.01

0.01

0.01

0.01

0.02

0.04

0.19

0.07

0.16

0.06

0.03

0.18

0.25

0.18

0.15

0.08

0.05

Wall
63

Figure 54. (a) Calcium, (b) magnesium and (c) manganese concentrations (mg/L) in transect 2 (0.45 μm filtered samples, February 1997 and

December 1998).

Figure 55. (a) Calcium, (b) magnesium and (c) manganese concentrations (mg/L) in transect 3 (0.45 μm filtered samples, February 1997 and

December 1998).

Groundwater flow direction 0 50 cm

0

10

20

30

0

5

10

15

0

0.5

1

1.5

12.9

10.2

9.1

8.2

15

25.3

26.2

10.3

18.1

23.8

3.2

6.1

9.9

9.0

2.2

3.3

3.2

4.8

4.2

3.5

3.8

2.5

2.8

1.3

1.6

2.4

10.6

7.6

6.1

5.9

5.6

11.1

11.1

9.0

3.6

3.4

3.5

0.3

0.3

0.1

0.1

1.3

0.9

0.5

1.1

1.5

1.1

4.9

December 1998 (Day 900)

0.1

0.1

0.2

0.2

0.0

0.0

0.0

0.0

0.0

0.0

0.1

0.1

0.0

0.0

0.0

0.0

0.3

1.2

Wall

11

8

5

23

18

28

24

6

4

6

5

6

5

16

3

4

5

5

4

4

5

5

6

4

6

5

5

6

6.5

4.8

3.3

15.9

13.5

14.8

10.2

2.9

9.7

0.4

5.7

6.1

8.7

3.5

3.8

2.6

8.6

0.1

0.0

0.0

0.0

2.4

2.0

0.0

0.4

0.7

2.6

2.1

February 1997 (Day 240)

0.10

0.09

0.17

0.50

0.35

2.64

2.71

0.00

0.08

0.01

0.04

0.02

0.09

0.38

0.02

0.02

0.03

0.01

0.00

0.00

0.00

0.12

0.48

0.00

0.01

0.03

0.40

0.51

Wall

6.8

22.8

9.1

22.8

23.6 4.0

4.3

1.2

4.7

2.7

3.0

2.8

2.7

1.2

1.4

6.0

6.0

6.8

5.6

3.1

3.1

2.9

0.2

0.1

0.3

0.2

0.0

0.5

1.1

0.8

0.5

0.5

0.1

0.0

0.4

0.2

0.3

2.1

3.4

0

10

20

30

0

5

10

15

Groundwater flow direction

9.69

10.4

11.3

11.5

17.0

26.0

29.9

33.5

22.7

34.2

36.5

9.5

10.6

20.7

24.2

47.2

38.7

31.4

40.4

1.9

2.0

6.8

17.1

16.9

16.5

19.3

23.0

12.4

14.0

10.6

1.9

2.8

1.2

9.7

11.8

9.4

16.8

December1998 (Day 900)

Wall

36.1

37.9

3.5

3.1

17.7

42.6

31.4

38.8

35.6

29.7

29.8

68.6

8

10

10

9

19

31

30

31

17

22

23

8

10

8

31

39

36

38

25

22

5

15

22

22

22

35

35

38

43

18

4

10

13

13

9

11

7

7

8

9

7

8

6

7

18

13

10

15

13

10

7

3

4.7

6.0

5.9

5.8

12.6

19.5

17.7

13.8

7.1

6.9

6.3

5.2

5.9

5.1

22.4

16.2

9.7

1.7

1.9

2.3

2.1

0.5

1.2

12.1

8.6

10.8

1.3

2.6

3.9

2.9

1.1

1.6

0.3

0.3

10.2

8.3

2.2

4.1

1.7

1.1

2.0

1.6

2.1

1.5

3.3

1.9

2.5

11.5

5.8

4.0

4.6

4.3

2.4

1.3

0.8

February 1997 (Day 240)

0.1

0.1

0.1

0.1

0.3

1.2

0.9

0.9

0.4

0.4

0.3

0.1

0.1

0.1

0.5

2.6

1.8

0.3

0.1

0.0

0.0

0.0

0.0

0.2

0.9

0.8

0.0

0.0

0.0

0.3

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.1

0.0

0.0

0.1

0.1

0.1

0.1

0.8

0.0

0.1

0.3

0.6

0.6

1.0

0.9

0.6

0.2

0.1

Wall

25

24

84

35.8 11.1

-6

-4

-2

-6

-4

-2 (a)

(b)

(c)

Depth (m) Depth (m) Depth (m)

-6

-4

-2
64

Figure 56. Alkalinity (mg/L CaCO3) in (a) transect 1, (b) transect 2 and (c) transect 3 (November 1996 and February 1997).

Figure 57. Alkalinity (mg/L CaCO3) in (a) transect 1, (b) transect 2 and (c) transect 3 (February 1997 and December 1998).

52

57

43

40

46

98

110

58

124

22

84

94

121

38

74

54

98

11

12

11

10

24

33

57

82

85

49

34

-7

-6

-5

-4 97

89

48

45

60

60

52

15

118

86

51

12

124

105

76

11

12

14

21

119

82

96

30

28

61

76

55

28

68

43

45

39

71

60

46

48

61

83

97

36.5

102

95

100

95

34

80

13

11

28

33

54

22

36

42

40

41

63

57

78

47

41

56

49

34

104

89

70

23

80

7

8

38

57

14

20

43

-6

-4

-2

56

-6

-4

-2

39

51

48

78

103

73

95

62

86

86

69

27

28

10

11

35

11

6

7

7

27

135

13

36

51

44

43

82

71

63

63

64

43

19

20

93

64

25

18

8

12

34

29

6

14

15

14

27

80

4

35

21

39

November 1996 (Day 150) February 1997 (Day 240)

(a)

(b)

(c)

Depth (m) Depth (m) Depth (m)

0

20

40

60

0

30

60

90

0

20

40

60

Groundwater flow direction 0 50 cm

Wall Wall

89

0

20

40

60

0

0

30

30

60

60

90

90

Groundwater flow direction 0 50 cm

52

57

43

40

46

98

110

22

84

94

121

38

74

54

98

11

12

11

10

24

33

57

82

85

49

34

53

18

16

17

53

95

12

10

19

46

14

47

3

72

104

36

81

48

65

128

55

118

56

65

71

48

139

128

107

178

36

57

50

69

65

31

22

12

58

120

17

88

50

108

128

46

December 1998 (Day 900)

Wall

52

57

43

40

46

98

110

58

124

22

84

94

121

38

24

33

57

82

85

49

34

43

45

39

71

60

46

48

61

83

97

36.5

102

95

100

95

34

80

13

11

28

33

54

22

36

44

43

82

71

63

63

64

43

19

20

93

64

25

18

8

12

34

29

6

14

15

14

27

80

4

35

21

39

February 1997 (Day 240)

Wall

124

76

122

124

58

74

54

98

11

12

11

10
65

Figure 58. Saturation indices for (a) calcite, (b) dolomite and (c) rhodochrosite (transect 1 (November 1996 (Day 150)).

-6

-4

-2

-2

0

2

-5.3

-5.3

-5.3

-4.1

-3.6

-3.9

-4.4

-4.3

-3.1

4.1

1.8

0.1

0.2

-0.3

-6.0

-2.4

-6.5

-5.2

-4.2

-6

-4

-2

-2.7

-2.7

-2.7

-2.0

-1.7

-1.9

-2.3

-2.1

-1.4

1.9

0.7

0.6

0.4

-0.1

-0.2

0.3

-0.1

-0.6

-0.6

-0.7

-3.0

-1.1

-3.2

-2.4

-1.9

-1

0

1

-6

-4

-2

-2.8

-2.7

-2.5

-1.2

-1.3

-1.6

-2.1

-1.7

-1.5

0.5

-0.3

-1.5

-1.7

-1.6

-1.3

-1.8

-1.8

-3.0

-1.0

-2.3

-2.0

-1.7

-2

-1

0

Depth (m) Depth (m) Depth (m)

(a)

(b)

(c)

0 50 cm

CALCITE

DOLOMITE

RHODOCHROSITE

Wall
66

Figure 59. Saturation indices for (a) calcite, (b) dolomite and (c) rhodochrosite (transect 2 (November 1996 (Day 150)). Depth (m) Depth (m) Depth (m)

(a)

(b)

(c)

0 50 cm

-7

-6

-5

-4

-1.6

-1.2

-0.9

-2.1

-2.1

-1.2

-0.4

-2.4

 

-2.2

-0.6

 

-0.1

-0.6

-0.3

 

-0.6

-1.0

-0.7

 

 

 

 

-1.2

-1.7

-2.0

-1.9

-1.1

-0.8

-1.2

-7

-6

-5

-4

-2.5

-1.7

-1.6

-4.4

-4.4

-3.2

-2.3

-4.7

0.6

0.5

-2.9

1.5

0.4

2.2

 

1.4

2.6

3.4

 

 

 

-0.5

-1.7

-2.9

-3.1

-3.4

-2.6

-2.6

-3.7

-7

-6

-5

-4

-1.3

-0.8

-0.8

-2.2

-2.2

-1.6

-1.2

-2.4

0.7

-0.1

-0.9

0.7

0.1

0.8

-0.5

0.6

1.4

1.3

1.3

0.6

0.4

0.1

-0.5

-1.1

-1.4

-1.8

-1.2

-1.2

-1.7

CALCITE

DOLOMITE

RHODOCHROSITE

Wall

-1

0

1

-1.0

-0.5

-1.5

0

2

-2
67

Depth (m) Depth (m ) Depth (m )

(a)

(b)

(c)

0 50 cm

-6

-4

-1

0

1

-2.8

-2.9

-2.9

-2.0

-2.1

-1.6

-2.7

-2.9

-2.2

-1.6

-1.8

1.4

-0.6

-0.4

1.6

1.5

0.6

0.8

0.3

-0.4

-2.2

-1.1

-2.3

-2.3

-2.0

-2

-6

-4

-2

0

-5.5

-5.7

-5.7

-4.0

-4.3

-3.5

-5.3

-5.8

-4.3

-3.9

-4.7

2.8

-1.1

-0.9

1.8

1.7

0.1

1.7

0.2

-1.1

-4.4

-2.2

-4.6

-4.6

-4.1

-4

-2

-6

-4

-3.3

-3.2

-3.0

-1.8

-2.0

-1.9

-3.1

-3.0

-1.9

-1.7

-3.2

-1.0

-0.5

-0.1

-1.2

-0.5

0.1

-0.3

-1.5

-0.7

-1.7

-1.7

-1.4

-2

-1

0

-2

CALCITE

DOLOMITE

RHODOCHROSITE

Wall

Figure 60. Saturation indices for (a) calcite, (b) dolomite and (c) rhodochrosite (transect 3 (November 1996 (Day 150)).
68

Figure 61. Saturation indices for (a) calcite, (b) dolomite and (c) rhodochrosite (transect 1 (December 1998 (Day 900)).

-6

-4

-2

-2

0

2

-5.4

-5.2

-5.3

-3.6

-3.4

-2.5

-5.3

-5.1

-2.4

1.3

1.2

-1.0

-0.7

-0.6

-4.7

-1.0

-9.9

-4.6

-4.3

-6

-4

-2

-2.7

-2.7

-2.7

-1.7

-1.6

-1.2

-2.6

-1.0

-1.2

-0.6

0.1

-0.2

-0.3

0.2

-2.4

-0.6

-5.1

-2.1

-1.8

-1

0

1

-6

-4

-2

-3.0

-2.6

-2.7

-1.0

-1.3

-1.1

-2.5

-2.1

-1.5

-1.2

-0.7

-1.3

-2.4

-2.8

-2.5

-2.5

-2.4

-1.9

-1.2

-2.8

-2.0

-2.3

-2

-1

0

Depth (m) Depth (m) Depth (m)

(a)

(b)

(c)

0 50 cm

CALCITE

DOLOMITE

RHODOCHROSITE

Wall

-2.7

-1.5 -0.5 -1.1

-3.1

-3.7

3.0

-3.6

-4.1

-3.7

-3.7

-2.9

-1.9 -3.2

0.5

0.5

0.1

0.2

-1.3

0.2

-2.1

-2.9

-2.4

-2.5

-2.4

-0.6 -1.9
69

Figure 62. Saturation indices for (a) calcite, (b) dolomite and (c) rhodochrosite (transect 2 (December 1998 (Day 900)). Depth (m) Depth (m) Depth (m)

(a)

(b)

(c)

0 50 cm

-1

0

1

-7

-6

-5

-4

-2.9

-2.9

-2.6

-2.6

-2.6

-1.2

-0.8

 

-1.5

-1.7

-1.7

-1.3

-1.5

-1.7

-1.4

-1.0

-0.5

-1.5

-7

-6

-5

-4

-5.0

-5.5

-5.3

-5.5

-5.0

-3.9

-3.5

-3.9

-3.3

-0.1

-0.2

-2.5

-5.3

-4.5

0

2

-2

-7

-6

-5

-4

-1.3

-2.8

-2.7

-2.8

-2.6

-1.9

-1.7

-2.0

-1.6

0.0

-0.2

-1.5

-2.7

-2.2

CALCITE

DOLOMITE

RHODOCHROSITE

Wall

-0.9

-0.9

-0.9

0.4

0.6

0.5

0.2

-2.7

-1.9

-1.2

-0.7

-1.2

-1.4

-1.4

0.5

0.3

0.5

-0.2

-0.4

-0.3

-0.7

 

1.3

1.6

1.4

-0.6

-5.3

-3.8

-2.5

-1.7

-3.0

-3.3

-3.5

1.6

0.5

0.8

-0.7

-0.9

-0.9

-1.6

-2.7

-2.9

-3.0

 

-2.5

-1.5

-0.7

-0.4

-1.1

-1.3

-1.4

1.2

-0.1

-0.6

-0.2

-0.3

-1.0

-0.9

 

 

 

-0.6

-0.9

-1.2

-1.3

-1.4

-1.0

-1.3
70

Figure 63. Saturation indices for (a) calcite, (b) dolomite and (c) rhodochrosite (transect 3 (December 1998 (Day 900)). Depth (m) Depth (m) Depth (m )

(a)

(b)

(c)

0 50 cm

-6

-4

-2.6

-2.6

-2.0

-1.9

-1.2

-0.4

0.0

-3.2

-1.6-

-1.9

-2.7

-2.8

-2.4

-1.2

-1.4

-2 -0.9

-6

-4

-5.2

-5.1

-4.0

-4.0

-2.9

-4.8

-3.2

-3.4

-2.7

-5.5

-5.7

-2.7

-3.8

-2

-6

-4

-2.6

-1.7

-1.7

-2.1

-3.0

-2.6

-1.7

-1.6

-1.4 -2

CALCITE

DOLOMITE

RHODOCHROSITE

Wall

0.5

-0.3

-0.6

0.5

0.6

0.2

-0.1

-0.4

-0.1

2.3 -1.0

-2.6

-5.2

-0.5

-1.3

-2.0

0.8

-1.3

-1.0 0.7

0.2

-1.0

-0.4

-0.4

-2.0

-3.1

-6.3

-0.1

-0.1

-0.5

-1.9

-2.3

-3.0

-2.8

-1.8

-1.3

-2.2

-2.4

-2.3

-2.3

-0.8

-0.2

-0.3

-1.2 -0.9

-1.4

-1

0

1

-2

0

-4

-1

0

-2
71

Figure 64. Electrical conductivity (μS/cm) in (a) transect 1 and (b) transect 3 (November 1996 and February 1997).

November 1996 (Day 150) February 1997 (Day 240)

480

609

881

633

398

604

697

341

432

441

238

245

171

170

447

270

202

215

182

382

624

207

312

389

-6

-4

-2

-6

-4

285

349

479

585

462

394

304

406

767

219

284

288

466

315

306

272

524

291

262

285

346

505

294

290

0

200

400

600

314

442

795

485

230

640

667

120

78

79

300

348

96

87

64

45

271

133

54

55

54

42

258

383

43

127

70

73

156

240

489

564

220

168

230

717

254

326

552

388

382

271

152

481

336

227

165

181

429

204

161

Wall Wall

0

200

400

600

-2

Depth (m) Depth (m)

Groundwater flow direction 0 50 cm

(a)

(b)

Figure 65. Electrical conductivity (μS/cm) in (a) transect 1 and (b) transect 3 (February 1997 and December 1998).

-6

-4

-2

-6

-4

0

200

400

600

December 1998 (Day 900)

Wall

0

200

400

600

-2

Depth (m) Depth (m)

Groundwater flow direction 0 50 cm

(a)

(b)

February 1997 (Day 240)

314

442

795

485

230

640

667

120

78

79

300

348

96

87

64

45

271

133

54

55

54

42

258

383

43

127

70

73

156

240

489

564

220

168

230

717

254

326

185

552

388

382

271

152

481

336

227

165

181

429

204

161

Wall

287

343

235

346

349

336

234

379

391

190

232

230

420 228

577

565

458

500 196

165

194 192 122

170

106

153

165

214

171
72

Figure 66. Comparison of observed and calculated electrical conductivity (μS/cm) in (a) transect 1 and (b) transect 3 (November 1996 (Day

150)).

-6

-4

-2

480

609

881

633

398

604

697

341

432

441

238

245

171

170

447

270

202

215

182

382

624

207

311

389

300

400

500

600

700

285

349

479

585

462

394

304

406

767

218

284

498

288

466

315

306

272

524

291

262

285

346

505

294

290

-6

-4

-2

391

495

864

585

388

314

616

685

205

422

433

166

157

88

90

72

487

117

98

80

319

643

150

210

442

190

275

352

544

396

311

213

333

792

173

187

228

486

434

299

281

236

509

215

196

174

251

409

206

188

(a)

(b)

Observed Electrical Conductivity Calculated Electrical Conductivity

Depth (m) Depth (m)

Groundwater flow direction 0 50 cm

Wall Wall

0

200

400

600

800
73

Appendix Tables

Appendix A: Survey Locations of Sampling Wells

Appendix B: Field analysis results

Table B1: November 1996 Field Data

Table B2: February 1997 Field Data

Table B3: June 1997 Field Data

Table B4: December 1998 Field Data

Appendix C: Lab Analysis Results (VOCs and Dissolved Gases)

Table C1: November 1996 VOC Results Analyzed at ManTech

Table C2: February 1997 VOC Results Analyzed at ManTech

Table C3: June 1997 VOC Results Analyzed at ManTech

Table C4: December 1998 VOC Results Analyzed at ManTech

Table C5: November 1996 Dissolved Gas Results Analyzed at ManTech

Table C6: February 1997 Dissolved Gas Results Analyzed at ManTech

Table C7: December 1998 Dissolved Gas Results Analyzed at ManTech

Table C8: Chlorinated Organics Analyzed at the University of Waterloo (μg/L)

Appendix D: Lab Analysis Results (Metals)

Table D1: November 1996 Metal Concentrations Analyzed at ManTech

Table D2: February 1997 Metal Concentrations Analyzed at ManTech

Table D3: December 1998 Dissolved Metal Concentrations Analyzed at ManTech

Appendix E: Lab Analysis Results (Anions)

Table E1: November 1996 Anion Concentrations Analyzed at ManTech

Table E2: February 1997 Anion Concentrations Analyzed at ManTech

Table E3: December 1998 Anion Concentrations Analyzed at ManTech

Appendix F: Pump Test Data

Table F1: Hydraulic Conductivities Calculated from Pump Tests Conducted by the

University of Waterloo

Table F2: Drawdown – Time and Time to Recovery Data from Pump Tests Conducted by

the University of Waterloo

Appendix G: Saturation Index Calculations

Table G1: Mineral Saturation Indices Calculated with MINTEQA2

Appendix H: List of Standard Operating Procedures

Appendix I: Ground-water Sampling - Standard Operating Procedures

Appendix J: Quality Assurance - Quality Control Narrative
74

Appendix A Survey Locations of Sampling Wells

(all measurements in meters)

Well Name Northing Easting Elevation1 Depth2

ML11-0 282419.4432 864537.8861 1.865 7.015

ML11-1 282419.4432 864537.8861 1.865 6.515

ML11-2 282419.4432 864537.8861 1.865 6.015

ML11-3 282419.4432 864537.8861 1.865 5.515

ML11-4 282419.4432 864537.8861 1.865 5.015

ML11-5 282419.4432 864537.8861 1.865 4.515

ML11-6 282419.4432 864537.8861 1.865 4.015

ML11-7 282419.4432 864537.8861 1.865 3.515

ML11-8 282419.4432 864537.8861 1.865 3.015

ML11-9 282419.4432 864537.8861 1.865 2.515

ML11-10 282419.4432 864537.8861 1.865 2.015

ML12-1 282421.203 864537.7334 na 6.51

ML12-2 282421.203 864537.7334 na 6.01

ML12-3 282421.203 864537.7334 na 5.51

ML12-4 282421.203 864537.7334 na 5.01

ML12-5 282421.203 864537.7334 na 4.51

ML12-6 282421.203 864537.7334 na 4.01

ML12-7 282421.203 864537.7334 na 3.51

ML12-8 282421.203 864537.7334 na 3.01

ML12-9 282421.203 864537.7334 na 2.51

ML12-10 282421.203 864537.7334 na 2.01

ML13-0 282421.5642 864537.8778 na 6.8

ML13-1 282421.5642 864537.8778 na 6.3

ML13-2 282421.5642 864537.8778 na 5.8

ML13-3 282421.5642 864537.8778 na 5.3

ML13-4 282421.5642 864537.8778 na 4.8

ML13-5 282421.5642 864537.8778 na 4.3

ML13-6 282421.5642 864537.8778 na 3.8

ML13-7 282421.5642 864537.8778 na 3.3

ML13-8 282421.5642 864537.8778 na 2.8

ML13-9 282421.5642 864537.8778 na 2.3

ML13-10 282421.5642 864537.8778 na 1.8

ML14-0 282421.8097 864537.7985 1.734 7.01

ML14-1 282421.8097 864537.7985 1.734 6.51

ML14-2 282421.8097 864537.7985 1.734 6.01

ML14-3 282421.8097 864537.7985 1.734 5.51

ML14-4 282421.8097 864537.7985 1.734 5.01

ML14-5 282421.8097 864537.7985 1.734 4.51

ML14-6 282421.8097 864537.7985 1.734 4.01

ML14-7 282421.8097 864537.7985 1.734 3.51

ML14-8 282421.8097 864537.7985 1.734 3.01

ML14-9 282421.8097 864537.7985 1.734 2.51

ML14-10 282421.8097 864537.7985 1.734 2.01

ML15-0 282423.0352 864538.2564 1.862 7.02

ML15-1 282423.0352 864538.2564 1.862 6.52

ML15-2 282423.0352 864538.2564 1.862 6.02

ML15-3 282423.0352 864538.2564 1.862 5.52

ML15-4 282423.0352 864538.2564 1.862 5.02

ML15-5 282423.0352 864538.2564 1.862 4.52

Elevation1: elevation of TOC above sea level (m)

Depth2: approximate depth below ground surface to center of screen (m)
75

ML15-6 282423.0352 864538.2564 1.862 4.02

ML15-7 282423.0352 864538.2564 1.862 3.52

ML15-8 282423.0352 864538.2564 1.862 3.02

ML15-9 282423.0352 864538.2564 1.862 2.52

ML15-10 282423.0352 864538.2564 1.862 2.02

ML21-1 282419.8637 864530.8944 1.795 7

ML21-2 282419.8637 864530.8944 na 6.5

ML21-3 282419.8637 864530.8944 na 6

ML21-4 282419.8637 864530.8944 na 5.5

ML21-5282419.8637 864530.8944 na 5

ML21-6 282419.8637 864530.8944 na 4.5

ML21-7 282419.8637 864530.8944 na 4

ML22-1 282421.5084 864529.9575 1.744 7

ML22-2 282421.5084 864529.9575 na 6.5

ML22-3 282421.5084 864529.9575 na 6

ML22-4 282421.5084 864529.9575 na 5.5

ML22-5 282421.5084 864529.9575 na 5

ML22-6 282421.5084 864529.9575 na 4.5

ML22-7 282421.5084 864529.9575 na 4

ML23-1 282421.727 864529.9957 1.756 7

ML23-2 282421.727 864529.9957 na 6.5

ML23-3 282421.727 864529.9957 na 6

ML23-4 282421.727 864529.9957 na 5.5

ML23-5 282421.727 864529.9957 na 5

ML23-6 282421.727 864529.9957 na 4.5

ML23-7 282421.727 864529.9957 na 4

ML24-1 282422.0111 864530.1619 1.704 7

ML24-2 282422.0111 864530.1619 na 6.5

ML24-3 282422.0111 864530.1619 na 6

ML24-4 282422.0111 864530.1619 na 5.5

ML24-5282422.0111 864530.1619 na 5

ML24-6 282422.0111 864530.1619 na 4.5

ML24-7 282422.0111 864530.1619 na 4

ML25-1 282423.1574 864530.5443 1.707 7

ML25-2 282423.1574 864530.5443 na 6.5

ML25-3 282423.1574 864530.5443 na 6

ML25-4 282423.1574 864530.5443 na 5.5

ML25-5 282423.1574 864530.5443 na 5

ML25-6 282423.1574 864530.5443 na 4.5

ML25-7 282423.1574 864530.5443 na 4

ML31-0 282419.664 864520.4187 1.85 7.02

ML31-1 282419.664 864520.4187 1.85 6.52

ML31-2 282419.664 864520.4187 1.85 6.02

ML31-3 282419.664 864520.4187 1.85 5.52

ML31-4 282419.664 864520.4187 1.85 5.02

ML31-5 282419.664 864520.4187 1.85 4.52

ML31-6 282419.664 864520.4187 1.85 4.02

ML31-7 282419.664 864520.4187 1.85 3.52

ML31-8 282419.664 864520.4187 1.85 3.02

Well Name Northing Easting Elevation1 Depth2

Elevation1: elevation of TOC above sea level (m)

Depth2: approximate depth below ground surface to center of screen (m)
76

ML31-9 282419.664 864520.4187 1.85 2.52

ML31-10 282419.664 864520.4187 1.85 2.02

ML32-0 282421.6384 864519.979 na 7.07

ML32-1 282421.6384 864519.979 na 6.57

ML32-2 282421.6384 864519.979 na 6.07

ML32-3 282421.6384 864519.979 na 5.57

ML32-4 282421.6384 864519.979 na 5.07

ML32-5 282421.6384 864519.979 na 4.57

ML32-6 282421.6384 864519.979 na 4.07

ML32-7 282421.6384 864519.979 na 3.57

ML32-8 282421.6384 864519.979 na 3.07

ML32-9 282421.6384 864519.979 na 2.57

ML32-10 282421.6384 864519.979 na 2.07

ML33-0 282421.7434 864519.9856 na 6.81

ML33-1 282421.7434 864519.9856 na 6.31

ML33-2 282421.7434 864519.9856 na 5.81

ML33-3 282421.7434 864519.9856 na 5.31

ML33-4 282421.7434 864519.9856 na 4.81

ML33-5 282421.7434 864519.9856 na 4.31

ML33-6 282421.7434 864519.9856 na 3.81

ML33-7 282421.7434 864519.9856 na 3.31

ML33-8 282421.7434 864519.9856 na 2.81

ML33-9 282421.7434 864519.9856 na 2.31

ML33-10 282421.7434 864519.9856 na 1.81

ML34-0 282422.1833 864519.961 1.798 6.99

ML34-1 282422.1833 864519.961 1.798 6.49

ML34-2 282422.1833 864519.961 1.798 5.99

ML34-3 282422.1833 864519.961 1.798 5.49

ML34-4 282422.1833 864519.961 1.798 4.99

ML34-5282422.1833 864519.961 1.798 4.49

ML34-6 282422.1833 864519.961 1.798 3.99

ML34-7 282422.1833 864519.961 1.798 3.49

ML34-8 282422.1833 864519.961 1.798 2.99

ML34-9 282422.1833 864519.961 1.798 2.49

ML34-10 282422.1833 864519.961 1.798 1.99

ML35-0 282423.1943 864519.7553 1.814 6.995

ML35-1 282423.1943 864519.7553 1.814 6.495

ML35-2 282423.1943 864519.7553 1.814 5.995

ML35-3 282423.1943 864519.7553 1.814 5.495

ML35-4 282423.1943 864519.7553 1.814 4.995

ML35-5 282423.1943 864519.7553 1.814 4.495

ML35-6 282423.1943 864519.7553 1.814 3.995

ML35-7 282423.1943 864519.7553 1.814 3.495

ML35-8 282423.1943 864519.7553 1.814 2.995

ML35-9 282423.1943 864519.7553 1.814 2.495

ML35-10 282423.1943 864519.7553 1.814 1.995

MW46 282435.0242 864507.9287 1.536 4.24-7.27

MW47 282423.7451 864519.0386 1.768 4.24-7.27

MW48 282419.7277 864530.3085 1.747 4.24-7.27

MW49 282423.0584 864539.1529 1.817 4.24-7.27

MW50 282423.3124 864531.2874 1.68 7.58-9.09

Well Name Northing Easting Elevation1 Depth2

Elevation1: elevation of TOC above sea level (m)

Depth2: approximate depth below ground surface to center of screen (m)
77

Appendix B Field Analysis Results

TABLE B-1. November 1996 Field Data (University of Waterloo)

Well Depth Eh (SCE) Eh (SHE) Tempbath Cr (VI) Fe(II) DO Tempwater Alkalinity Conductvty

Point (m) (mV) (mV) pH (

o

c) (mg/L) (mg/L) (mg/L) (

o

c) (mg/L CaCO3) (μS/cm)

11-0 -7.02 205 456 5.91 9.8 0.11 0.02 0.3 16.3 39 480.32

11-1 -6.52 0.98 0.01

11-2 -6.02 163 415 6.01 8.6 1 0 0.6 17.2 51 609.43

11-3 -5.52 2.5 0

11-4 -5.02 157 409 5.96 8.3 2 0 0.8 15.8 48 881.37

11-5-4.52 0.07 0.01

11-6 -4.02 225 478 6.1 7.7 0.04 0.01 0.0515 78 633.05

11-7 -3.52 0 0.01

11-8 -3.02 133 385 6.23 8.6 0 0.15103

11-9 -2.52 0 0.18

11-10 -2.02 -118 134 6.358.3 0 0.01 0.15 18.6 73 398.49

12-1 -6.51 1.7 0

12-2 -6.01 174 421 6.29 16.2 2.50 >1.0 17.3 95 604.22

12-3 -5.51 1.55 0

12-4 -5.01 95 344 6.23 12.9 0.6 0.21 0.8 15.3 61.5 697.42

12-5-4.51 0 12.6

12-6 -4.01 -178 73 7.01 10.4 0 2.61 0 17 85.5 340.85

12-7 -3.51 0 2.89

12-8 -3.01 0 1.14

12-9 -2.51 0 0.79

12-10 -2.01 0 0.07

13-0 -6.8 -590 -341 9.1512.4 0 0.26 0.5 15.5 86 432

13-1 -6.3 0 0.01

13-2 -5.8 -629 -382 9.8 15.3 0 0 0.2 na 69 441

13-3 -5.3 0 0

13-4 -4.8 -831 -583 10.4 14.50 0 0.4 15.6 26.5237.79

13-5-4.3 0 0

13-6 -3.8 -649 -396 10.3 7.50 0.01 0.2 14.2 28 244.73

13-7 -3.3 0 0

13-8 -2.8 -833 -587 10.4 17.50 0 0.2 20.4 9.6 170.71

13-9 -2.3 0 0.03

13-10 -1.8 -593 -348 10.518 0 0 0.2 17.4 10.5 170.01

14-0 -7.01 -833 -585 10.513.8 0 0 0.5 16 35 446.95

14-1 -6.51 0 0.01

14-2 -6.01 -717 -467 10.1 11.2 0 0 0.3 17.9 11 269.96

14-3 -5.51 0 0.01

14-4 -5.01 -780 -532 10 13.9 0 0.02 0.514.4 6.4 201.61

14-5-4.51 0 0.01

14-6 -4.01 -748 -496 10 9.1 0 0.06 0.2 14 7.3 215.15

14-7 -3.51 0 0

14-8 -3.01 -725 -472 9.91 7.8 0 0.01 0.3 15.3 6.8 182.42

14-9 -2.51 0 0.15

14-10 -2.01 0 0.15
78

15-1 -6.52 0 0.7

15-2 -6.02 -106 145 7.66 10.7 0 0.01 0.3 18.5135623.7

15-3 -5.52 0 0.13

15-4 -5.02 -517 -268 7.34 13 0 0.07 0.1 13.4 12.5207.11

15-5 -4.52 0 0.09

15-6 -4.02 -59 190 6.38 12.8 0 1.9 0.0517.7 35.5 311.38

15-7 -3.52 0 1.9

15-8 -3.02 -2 247 6.43 12.3 0 0.74 0.2 18 51 388.75

15-9 -2.52 0 0.18

15-10 -2.02 0 0.09

31-0 -7.02 157 405.8 6.01 13.1 0 0 0.1519.2 41.8 285.23

31-1 -6.52 0.02 0

31-2 -6.02 275 526.21 5.91 9.7 0.06 0 0.2 19.8 40.3 348.97

31-3 -5.52 0.2 0

31-4 -5.02 222 472.23 5.89 11.1 0.31 0 0.5 19.5 41 478.6

31-5-4.52 0.03 0

31-6 -4.02 256.00 507.63 6.15 9.10 0.00 0 0.2 19.5 63 584.6

31-7 -3.52 0.00 0

31-8 -3.02 247.00 499.05 6.13 8.50 0.00 0 0.4 19.2 57.3 462.23

31-9 -2.52 0.00 0

31-10 -2.02 188.00 438.44 6.47 10.80 0.00 0.02 >1 19.6 78 394.39

32-0 -7.07 -236.00 10.87 6.02 15.90 0.00 0.44 0.1 19.7 46.8 304.18

32-1 -6.57 0.01 0.02

32-2 -6.07 203.00 451.13 5.89 14.10 0.30 0 0.2 19.5 40.6 405.6

32-3 -5.57 0.29 0.06

32-4 -5.07 121.00 368.78 6.01 14.60 0.04 0.02 0.2 19.9 56.3 766.76

32-5-4.57 0.00 1.01

32-6 -4.07 -138.00 110.06 6.75 14.20 0.00 2.74 0 19.5 55.8 218.6

32-7 -3.57 0.00 1.42

32-8 -3.07 -20.00 228.55 6.49 13.50 0.00 1.905 >1 19.3 49.3 284.02

32-9 -2.57 0.00 0

32-10 -2.07 

33-0 -6.81 -641.00 -393.22 10.2 14.60 0.00 0 0 20.533.5497.5

33-1 -6.31 0.00 3.15

33-2 -5.81 -328.00 -83.93 7.6 19.90 0.00 9 0 19.9 104 287.76

33-3 -5.31 0.00 4.55

33-4 -4.81 -450.00 -200.33 7.77 11.90 0.00 0.79 0 20.2 89 466.13

33-5-4.31 0.00 0.01

33-6 -3.81 -144.00 102.73 9.97 16.10 0.00 0 0.3 20.1 88.5315.34

33-7 -3.31 0.00 2.71

33-8 -2.81 -160.00 86.87 10.2 15.90 0.00 0 0.3 20 69.5 305.55

33-9 -2.31 0 0.01

33-10 -1.81 0 0.1

TABLE B-1. November 1996 Field Data (University of Waterloo)

Well Depth Eh (SCE) Eh (SHE) Tempbath Cr (VI) Fe(II) DO Tempwater Alkalinity Conductvty

Point (m) (mV) (mV) pH (

o

c) (mg/L) (mg/L) (mg/L) (

o

c) (mg/L CaCO3) (μS/cm)
79

34-0 -6.99 -792 -541 10.7 9.3 0 0 0.05 18.7 22.9 272.28

34-1 -6.49 0 0.01

34-2 -5.99 -371 -121 9.26 11 0 0.013 0.1 20.3 80 523.92

34-3 -5.49 0 0.01

34-4 -4.99 -598 -355 8.36 20.9 0 0.28 0.05 21 6.5 291.45

34-5-4.49 0 0.45

34-6 -3.99 -592 -347 7.65 18.9 0 0.59 0 21.5 8.4 262.4

34-7 -3.49 0 0.99

34-8 -2.99 0 0.63

34-9 -2.49 0 0.71

34-10 -1.99 0 0.17

35-0 -7 -56 197.24 6.81 6.8 0 1.52 0.1 16.9 38 285.06

35-1 -6.5 0 0

35-2 -6 -207 44.35 7.73 9.5 0 1 0.1 20.5 57 345.5

35-3 -5.5 0 0

35-4 -5 -448 -196.93 7.04 9.9 0 1 0.1 19.4 14.1 504.81

35-5 -4.5 0 0

35-6 -4 39 290.07 6.66 9.9 0 0 0.05 21.1 20 294.24

35-7 -3.5 0 0

35-8 -3 14 265.14 6.62 9.8 0 1 0.1 19.1 42.5 290.44

35-9 -2.5 0 1

35-10 -2 0 0

TABLE B-1. November 1996 Field Data (University of Waterloo)

Well Depth Eh (SCE) Eh (SHE) Tempbath Cr (VI) Fe(II) DO Tempwater Alkalinity Conductvty

Point (m) (mV) (mV) pH (

o

c) (mg/L) (mg/L) (mg/L) (

o

c) (mg/L CaCO3) (μS/cm)
80

TABLE B-2. February 1997 Field Data (University of Waterloo)

Well Depth Eh (SCE) Eh (SHE) Tempbath Tempwater Cr (VI) Fe(II) DO Alkalinity Conduct.

Point (m) (mV) (mV) pH (

o

c) (oc) (mg/L) (mg/L) (mg/L) (mg/L CaCO3) (μS/cm)

11-0 7.02 156 403 5.92 16 19.5 0.09 0.19 0.8 39 314

11-1 1.450

11-2 6.02 271 518 5.96 15.2 18.1 0.54 0.07 0.8 44 442

11-3 1.250

11-4 5.02 295 542 5.83 15.7 17.6 0.34 0.04 43 795

11-50.11 0

11-6 4.02 130 376 6.31 17.2 18.50.04 0.03 0.6 82 485

11-7 0 0.36

11-8 3.02 56 303 6.46 15.6 17.6 0 0.34 0.4 71 230

11-9 0 0.23

11-10 2.02 -24 218 6.55 22.7 0 0.48 63

12-1 0.9 0.02

12-2 6.01 245 494 6.1 12.8 16.3 2.150.01 0.8 62.5 640

12-3 1.88 0.01

12-4 5.01 189 437 6.07 14.4 16.7 0.850.01 0.4 63.5 667

12-5 0 13.2

12-6 4.01 -161 83 7.37 20.4 18 0 2.750.3 43 120

12-7 0 2.36

12-8 3.01 -48 196 6.6 20.2 15.8 0.01 1.26 0.8 19 78

12-9 0 0.07

12-10 2.01 293 540 7.08 15.9 15.5 0 0.01 1 20 79

13-0 6.8 -35 206 9.01 24 0 0.01 92.5300

13-1 0 0

13-2 5.8 -358 -116 9.73 23.517.9 0 0 0.15 63.5 348

13-3 0 0

13-4 4.8 -678 -436 10.62 23 17.2 0 0.01 0.1524.5 96

13-5 0 0.01

13-6 3.8 -558 -315 10.72 22 15.6 0 0.01 0.1 17.5 87

13-7 0 0

13-8 2.8 -445 -202 10.6521 14.1 0 0.44 8 64

13-9 0 0.02

13-10 1.8 -483 -234 10.3 12.6 13.3 0 0.01 0.3 11.6 45

14-0 7.01 -819 -572 10.88 1517.1 0 0 0.1 34 271

14-1 0 0.01

14-2 6.01 -816 -569 10.57 15 15.8 0 0 0.15 28.5 133

14-3 0 0

14-4 5.01 -827 -583 10.32 20 16 0 0 0.1 6 54

14-50.01 0.01

14-6 4.01 -826 -583 10.28 22 17.2 0 0 0.2514 55

14-7 0 0

14-8 3.01 -806 -563 10.14 22 17.50 0.01 0.15 14.5 54

14-9 0 0.2

14-10 2.01 -643 -401 8.3523 15.8 0 0.08 0.5 13.5 42

15-0 7.02 13 262 6.1513 17.3 0 0.1 0.375 26.5 258

15-1 0 0.26

15-2 6.02 -375 -124 8.07 10 15.5 0 0.25 0.15 82 383

15-3 0 0.08

15-4 5.02 -710 -460 7.96 12 16.7 0 0.03 0.254 43

15-5 0 0.3

15-6 4.02 -287 -40 6.71 16 16 0 1.650.15 35 127

15-7 0 0.73

15-8 3.02 -160 86 7.01 16.514.9 0 0.44 0.5 21 70

15-9 0 0.06

15-10 2.02 -111 136 6.71 16 13.7 0 0.03 1 73
81

31-0 -7.02 307 553 6.1 16.5 18 0 0.01 0 43 156

31-1 -6.52 0.06 0.03

31-2 -6.02 326 574 5.95 15 17 0.08 0 0 45 240

31-3 -5.52 0.08 0.02

31-4 -5.02 317 565 5.84 14.1 17.1 0.1 0.01 0 39 489

31-5-4.52 0.09 0.02

31-6 -4.02 330 578 6.15 14.4 16.4 0 0.01 0.3 71 564

31-7 -3.52 0 0.01

31-8 -3.02 269 517 6.41 15 15.7 0 0 0.3 60 220

31-9 -2.52 0 0

31-10 -2.02 186 434 6.55 15 0 0.02

32-0 -7.07 242 487 6.02 18.519.6 0 0.8 0 46 168

32-1 -6.57 0.02 0.04

32-2 -6.07 182 428 5.95 17.5 18.1 0.25 0 0 48 230

32-3 -5.57 0.26 0.01

32-4 -5.07 193 439 6.06 17.6 17.7 0.03 0.15 0 61 717

32-5-4.57 0 2.87

32-6 -4.07 -64 180 6.78 19.517.2 0 14.8 0.3 83 254

32-7 -3.57 0 10.15

32-8 -3.07 106 350 6.53 19.7 16.2 0 1.5 0.3 97 326

32-9 -2.57 0 0.03

32-10 -2.07 158 402 8.72 19.7 0 0.02

33-0 -6.81 -505 -261 10.54 20.3 19.5 0 0.01 0 36.5 185

33-1 -6.31 0 0.21

33-2 -5.81 -229 15 7.6 19.5 19.1 0 1.85 0 102 552

33-3 -5.31 0 7.45

33-4 -4.81 -278 -33 8.6 18.518.7 0 0.19 0 95 388

33-5-4.31 0.02

33-6 -3.81 242 486 8.96 19.3 18.1 0 0.01 0.3 100 382

33-7 -3.31 0 6.95

33-8 -2.81 154 400 9.31 17.8 17 0 0 0.3 95 271

33-9 -2.31 0 0.03

33-10 -1.81 47 293 11.74 17.8 0 0.09

34-0 -6.99 -797 -550 10.66 15.2 17.7 0 0.01 0.1 34 152

34-1 -6.49 0 0.01

34-2 -5.99 -60 187 9.39 15.7 17.2 0 0 0.2 80 481

34-3 -5.49

34-4 -4.99 -627 -379 9.19 14.7 17.1 0 0.03 0.2 12.8 336

34-5-4.49 0 0.01

34-6 -3.99 -474 -228 9.1517.7 17.6 0 0.03 0 10.6 227

34-7 -3.49 0 0.16

34-8 -2.99 -322 -77 8.4518.8 16.5 0 0.21 >1 27.8 165

34-9 -2.49 0 0.25

34-10 -1.99 211 456 7.22 18.8 0 0.08

35-0 -7.00 186 433 6.31 15.7 18.4 0 2.11 0.15 33.4 181

35-1 -6.50 0 0.01

35-2 -6.00 63 311 7.65 15 0 0.77 0.2

35-3 -5.50 0 0.09

35-4 -5.00 5 255 7.36 11.4 17.5 0 2.24 0.5 54 429

35-5 -4.50 0 0.55

35-6 -4.00 137 383 6.6 16.7 17.3 0 0.08 0.2 22 204

35-7 -3.50 0 0.31

35-8 -3.00 150 396 6.78 16.5 16.3 0 0.7 0.4 36.3 161

35-9 -2.50 0 0.42

35-10 -2.00 0 0.17 >1

Well Depth Eh (SCE) Eh (SHE) Tempbath Tempwater Cr (VI) Fe(II) DO Alkalinity Conduct.

Point (m) (mV) (mV) pH (

o

c) (oc) (mg/L) (mg/L) (mg/L) (mg/L CaCO3) (μS/cm)

TABLE B-2. February 1997 Field Data (University of Waterloo)
82

TABLE B-3. June 1997 Field Data (University of Waterloo)

Well Depth Eh (SCE) Eh (SHE) Tempbath Tempwater Cr (VI) Fe(II) S2- DO Alkalinity Conductivity Turbidity

Point b.g.s.(m) (mV) (mV) pH (

o

c) (oc) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L CaCO3) (μS/cm) (ntu)

11-0 -7.02 231 474 5.84 22 22 0.14 0.01 0.4 38 368 0.6

11-1 -6.52 0.73 0.00

11-2 -6.02 255 496 5.85 24 23.1 0.75 0.00 0.6 43 545 21.0

11-3 -5.52 2.05 0.00

11-4 -5.02 255 497 5.78 23 23.1 1.49 0.00 0.6 45.6 758 8.5

11-5-4.52 0.14 0.00

11-6 -4.02 168 410 6.11 23 23.8 0.08 0.01 0.4 100 400 1.5

11-7 -3.52 0.00 0.30

11-8 -3.02 42 283 6.36 24 23.4 0.00 0.40 0.3 78 219 4.4

11-9 -2.52 0.00 0.52

11-10 -2.02 -27 215 6.47 23 24.4 0.00 1.251 56 181 turbid

12-1 -6.51 0.85 0.01

12-2 -6.01 205 446 5.87 24 22.4 0.75 0.00 0.4 52 369 4.9

12-3 -5.51 1.70 0.00

12-4 -5.01 113 354 6.03 24 22.2 0.70 0.11 0.569 600 11.7

12-5-4.51 0.00 2.89

12-6 -4.01 -201 39 7.4 26.2 22.6 0.00 2.59 0.2 26 99 90.6

12-7 -3.51 0.00 1.70

12-8 -3.01 -193 47 6.78 26 22.7 0.00 1.32 0.1521 84 60.4

12-9 -2.51 0.00 0.08

12-10 -2.01 -10 230 6.74 26 22.7 0.00 0.12 1 24 104 52.8

13-0 -6.8 -501 -259 9.61 23.523.6 0.00 0.00 0.01 0.25 45 410 1.0

13-1 -6.3 0.00 0.02

13-2 -5.8 -434 -194 9.84 26.4 22 0.00 0.00 0.00 0.3 48 329 2.2

13-3 -5.3 0.00 0.01

13-4 -4.8 -676 -434 10.27 22.9 21.8 0.00 0.00 0.00 0.2 11 87 0.5

13-5-4.3 0.00 0.00

13-6 -3.8 -689 -449 10.55 25.4 22.2 0.00 0.00 0.01 0.1 19 88 21.2

13-7 -3.3 0.00 0.01

13-8 -2.8 -628 -385 10.51 21.7 22.5 0.00 0.00 0.00 0.4 17 62 1.4

13-9 -2.3 0.00 0.00

13-10 -1.8 -578 -339 10.17 26.7 27.2 0.00 0.01 0.04 0.6 10 69 11.7

14-0 -7.01 -657 -412 10.11 19 23 0.00 0.02 0.01 0.1 13 300 8.1

14-1 -6.51 0.00 0.00

14-2 -6.01 -556 -314 10.12 23 21.7 0.00 0.00 0.01 0.1 32 282 3.3

14-3 -5.51 0.00 0.00

14-4 -5.01 -790 -545 10.23 18.8 23.8 0.00 0.01 0.00 0.158 63 0.8

14-5-4.51 0.00 0.00

14-6 -4.01 -770 -525 10.2 18.7 22.7 0.00 0.00 0.00 0.1 8 58 1.2

14-7 -3.51 0.00 0.00

14-8 -3.01 -705 -460 10.08 19 24.4 0.00 0.01 0.01 0.1 8 56 0.4

14-9 -2.51 0.00 0.01

14-10 -2.01 -493 -249 9.44 20.6 25.3 0.00 0.01 0.01 0.15 12 52 18.1

15-0 -7.02 60 304 6.12 20 22.7 0.00 0.29 0.1 15.5 241 1.9

15-1 -6.52 0.00 0.44

15-2 -6.02 -213 32 8.38 18.2 24 0.00 0.02 0.01 0.1551 304 6.2

15-3 -5.52 0.00 0.01

15-4 -5.02 -677 -432 7.96 18.3 24.50.00 0.04 0.01 0.2 2.1 32 23.5

15-5 -4.52 0.00 0.10

15-6 -4.02 -87 156 6.79 20.8 23.8 0.00 0.86 0.1522 89 18.4

15-7 -3.52 0.00 0.43

15-8 -3.02 -225 19 6.81 19.6 25.3 0.00 0.17 0.25 26 80 30.4

15-9 -2.52 0.00 0.03

15-10 -2.02 200 444 6.9 19.9 26.4 0.00 0.01 1 29 99 13.4

31-0 -7.02 232 473 6.04 24.2 20.50.00 0.01 0.15 36 167 62.2

31-1 -6.52 0.04 0.00

31-2 -6.02 235 474 5.89 27.5 21.7 0.04 0.00 0.15 43 220 24.9

31-3 -5.52 0.03 0.00

31-4 -5.02 166 405 5.87 27.8 21.3 0.06 0.00 0.13 38 423 4.5

31-5-4.52 0.06 0.00

31-6 -4.02 188 429 6.0524.6 21.9 0.00 0.00 0.2 61 570 13.8
83

31-7 -3.52 0.00 0.00

31-8 -3.02 211 452 6.2524.1 23.6 0.00 0.02 0.8 72 355 6.8

31-9 -2.52 0.00 0.01

31-10 -2.02 219 457 6.4 28.4 24.8 0.00 0.01 0.3 99 301 na

32-0 -7.07 160 402 6.03 23 23.4 0.00 0.32 0.3 43 167 1.6

32-1 -6.57 0.03 0.00

32-2 -6.07 244 486 5.88 22.5 24.1 0.11 0.00 1 51 218 6.5

32-3 -5.57 0.00 2.99

32-4 -5.07 215 457 6.04 23.522.50.06 0.01 0.15 56 448 5.9

32-5-4.57 0.00 3.10

32-6 -4.07 -108 132 6.64 26.4 22.6 0.00 9.87 0 80 273 2.4

32-7 -3.57 0.00 1.06

32-8 -3.07 -26 213 6.47 26.522.3 0.00 2.14 0.4 94 289 2.3

32-9 -2.57 0.00 0.01

32-10 -2.07 210 450 7.91 26.2 23.7 0.00 0.01 1 49 193 19.3

33-0 -6.81 -613 -373 10.43 25.5 20.8 0.00 0.00 0.012 0.25 22 155 2.5

33-1 -6.31 0.00 0.01 0.002

33-2 -5.81 -232 10 7.4 23.524 0.00 1.98 0.2540 235 4.1

33-3 -5.31 0.00 6.73

33-4 -4.81 -242 0 7.86 23 24.3 0.00 0.33 0.4 67 284 na

33-5-4.31 0.00 0.00 0.005

33-6 -3.81 -263 -22 7.8524.5 24.9 0.00 0.90 1 94 250 29.8

33-7 -3.31 0.00 6.40

33-8 -2.81 -16 226 9.22 23.525.50.00 0.01 0.019 0.3 81 231 23.8

33-9 -2.31 0.00 0.02

33-10 -1.81 -102 140 11.56 23.5 28 0.00 0.01 0.001 1 224 800 turbid

34-0 -6.99 -678 -439 10.527.1 21 0.00 0.00 0.003 0.18 24 153 1.8

34-1 -6.49 0.00 0.00

34-2 -5.99 -367 -126 9.47 24.9 22.1 0.00 0.02 0.009 0.3542 221 1.1

34-3 -5.49 0.00 0.00

34-4 -4.99 -583 -343 9.2526.4 21.3 0.00 0.00 0.004 0.25 9 202 6.4

34-5-4.49 0.00 0.01

34-6 -3.99 -548 -308 9.27 25.9 22 0.00 0.01 0.031 0.45 7 141 7.6

34-7 -3.49 0.00 0.13

34-8 -2.99 -341 -99 8.96 23 250.00 0.00 0.018 1 16 113 91.0

34-9 -2.49 0.00 0.08

34-10 -1.99 -341 -99 8.7 23 250.00 0.03 0.093 1 13 100 85.0

35-0 -7.00 27 272 6.46 19 20.6 0.00 0.72 0.3 28 118 na

35-1 -6.50 0.00 0.00

35-2 -6.00 -234 9 7.89 22 23.8 0.00 0.19 0.7 67 196 0.6

35-3 -5.50 0.00 0.26 0.010

35-4 -5.00 -222 19 7.71 24 24.2 0.01 0.24 0.7 14 223 8.4

35-5 -4.50 0.00 0.44

35-6 -4.00 68 309 6.52 24 23.2 0.00 0.07 0.5 15 225 1.6

35-7 -3.50 0.00 0.30

35-8 -3.00 -50 192 6.55 23 24.2 0.00 1.58 0.4 31 175 2.5

35-9 -2.50 0 0.70

35-10 -2.00 -47 195 6.81 23 25.2 0 0.22 0.6 27 143 176

TABLE B-3. June 1997 Field Data (University of Waterloo)

Well Depth Eh (SCE) Eh (SHE) Tempbath Tempwater Cr (VI) Fe(II) S2- DO Alkalinity Conductivity Turbidity

Point b.g.s.(m) (mV) (mV) pH (

o

c) (oc) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L CaCO3) (μS/cm) (ntu)
84

Table B 4. December 1998 Field Data (University of Waterloo)

Piezometer Eh Eh SHE pH DO Fe(II) Cr(VI) Alkalinity Turbidity Conductivity S2-

Location CHEMet DR2010 DR2010 Hach 25C

mV mV mg/L mg/L mg/L mg/L CaCO3 NTU μS/cm mg/L

ML11-10 -20 224 6.63 0.152.60 0.00 128 27 304

ML11-8 0 244 6.33 0.1 4.2 0.01 108 4.3 292

ML11-6 170 414 6.24 0.50.00 0.02 88 0.8 417 0.00

ML11-4 230 474 5.79 >1 0.00 2.00 50 0.7 696 0.00

ML11-2 219 463 5.95 0.6 0.00 0.45 50 10 464 0.00

ML11-0 233 477 5.72 0.5 0.00 0.13 46 5 380

ML12-10 162 406 6.44 0.2 0.02 0.00 76 1.9 363

ML12-8 -48 196 6.49 0.2 4.21 0.00 124 4.1 351

ML12-6 -157 87 6.92 <.1 5.60 0.00 122 2.5 282 0.09

ML12-4 241 485 5.91 0.00 1.10 53 0.4 672 0.00

ML12-2 231 4755.87 0.7 0.00 0.95 47 1.5 602 0.00

ML13-10 -158 86 6.92 >1 0.02 0.00 53 18.0 226

ML13-8 -796 -552 10.19 0.2 0.01 0.00 17 0.5 91

ML13-6 -783 -539 10.19 0.1 0.01 0.00 18 0.6 107 0.00

ML13-4 -702 -458 9.84 0.25 0.00 0.00 16 0.4 77 0.00

ML13-2 -336 -92 9.31 0.02 0.00 75311 0.04

ML13-0 -508 -264 9.59 0.25 0.03 0.00 95 1.1 345

ML14-10 -295-51 7.96 0 0.80 0.00 46 138

ML14-8 -651 -407 10.16 0.6 0.01 0.00 19 0.5 91

ML14-6 -805-561 10.00 0.2 0.00 0.00 12 0.5 77 0.04

ML14-4 -795-551 9.82 0.25 0.01 0.00 10 0.5 84 0.08

ML14-2 -444 -200 9.89 0.7 0.01 0.00 10 0.35141 0.00

ML14-0 -785-541 10.32 0.1 0.10 0.00 14 1.1 301

ML15-10 231 475 6.77 0.5 0.02 0.00 104 3.8 338

ML15-8 -222 22 6.5 0.3 0.37 0.00 72 0.6 216

ML15-6 -96 148 6.54 0.2 2.54 0.00 47 7 150 0.01

ML15-4 -683 -439 8.68 0.2 0.03 0.00 3 31 34 0.01

ML15-2 -231 13 8.7 n/a 0.02 0.00 36 5.3 263

ML15-0 0 244 6.58 0.2 1.45 0.00 36 28 311

ML25-7 -51.9 148 6.69 0.50 2.1 NA 27 0.32 147

ML25-6 -103.9 96 7.12 0.50 NA NA 14 2.19 80

ML25-5 -248.5 -49 8.33 0.60 NA NA 32 6.93 215

ML25-4 -233.5 -34 9.39 5.2 NA NA 57 3.77 222

ML25-3 -139.3 61 9.74 0.46 NA NA 64 2.77 274

ML25-2 -146.4 54 7.62 0.65 NA NA 51 1.33 204

ML25-1 -117.2 83 7.34 1.2 1.65 0.00 47 0.94 223

ML24-7 -648.6 -449 9.851.98 NA 0.00 4 0.48 71

ML24-6 -754.3 -554 9.70 0.35 NA 0.00 4 0.71 69

ML24-5-738.7 -539 9.87 0.39 NA 0.00 4 0.57 95

ML24-4 -677.0 -477 10.250.33 NA 0.00 18 0.17 135

ML24-3 -350.0 -150 9.99 0.70 NA 0.00 70 1.20 277

ML24-2 -321.3 -121 9.92 0.38 NA 0.00 96 0.21 284

ML24-1 -309.0 -109 9.93 0.44 NA 0.00 74 0.19 265
85

ML23.5-8 -365.3 -165 8.69 1.36 NA 0.0 77 11.8 91

ML23.5-7 -213.5 -14 8.52 1.10 NA 0.0 32 12.8 91

ML23.5-6 -353.4 -153 9.05 1.02 NA 0.0 29 5.10 86

ML23.5-5 -359.7 -160 8.55 0.95 NA 0.0 25 0.80 143

ML23.5-4 -345.6 -146 8.52 0.79 NA 0.0 36 0.79 163

ML23.5-3 5.9 206 9.08 1.80 NA 0.0 45 0.16 216

ML23.5-2 -23.7 176 9.06 1.66 NA 0.0 79 2.33 267

ML23.5-1 -174.2 26 9.84 1.36 NA 0.0 78 0.33 226

ML23.5-0 -281.2 -81 9.83 1.39 NA 0.0 82 0.20 213

ML22.5-8 -129.1 71 6.76 1.08 1.15 0.0 93 13.1 189

ML22.5-7 -134.2 66 6.84 1.15 8.4 0.0 44 5.99 197

ML22.5-6 -137.0 63 6.93 0.91 9.9 0.0 54 8.47 214

ML22.5-5 -137.8 62 7.05 1.12 9.1 0.6 51 5.91 227

ML22.5-4 -151.9 48 7.37 1.37 10.9 0.0 56 3.28 252

ML22.5-3 -131.8 68 6.91 0.67 7.8 0.0 92 1.17 319

ML22.5-2 84.00 284 6.6 1.31 9.5 0.01 117 4.64 250

ML22.5-1 116.00 316 6.08 1.19 2.66 0.02 72 0.57 204

ML22.5-0 -182.4 18 7.25 0.62 0.8 0.14 41 0.30 220

ML21-7 -0.1 200 6.36 1.22 2.89 0.0 96 0.51 296

ML21-6 33.7 234 6.251.04 NA 0.1 80 1.65 381

ML21-5 256.0 456 5.96 0.99 NA 2.5 51 0.90 484

ML21-4 241.3 441 6.06 1.11 NA 0.9 42 5.81 313

ML21-3 222.2 422 5.99 1.03 NA 0.2 55 11.2 212

ML21-2 228.5429 5.98 1.12 NA 0.3 40 6.43 184

ML21-1 126.5327 6.04 1.05 NA 0.0 49 5.70 203

ML31-10 158 402 6.55 0.4 0.00 0.05 128 21 343

ML31-8 200 444 6.27 0.4 0.12 0.00 653.5287

ML31-6 179 423 6.04 1 0.02 0.00 81 5.8 565 0.00

ML31-4 224 468 5.91 0.8 0.00 0.22 48 16 458 0.00

ML31-2

ML31-0 218 462 6.01 0.3 0.00 0.00 55 29 194

ML32-10 51 295 7.02 1 0.00 0.00 71 6 349

ML32-8 -57 187 6.6 0.2 3.60 0.00 65 1.2 346

ML32-6 -110 134 6.53 0 4.63 0.00 118 4.6 420 0.00

ML32-4 210 454 5.94 0.4 0.01 0.04 56 3 577 0.00

ML32-2 163 407 5.87 0.4 0.00 0.03 46 2.2 235 0.00

ML32-0 174 418 6.050.4 0.00 0.00 48 3.7 192

ML33-10 27 271 11.3 1 0.01 0.00 178 500

ML33-8 -180 64 7.28 1 0.01 0.00 107 2.3 234

ML33-6 -230 14 7.33 1 2.29 0.00 139 1.7 336 0.01

ML33-4 -223 21 7.66 0.2 2.30 0.00 128 1.1 391 0.00

ML33-2 -211 33 7.71 0.3 2.7 0.00 57 2.5 379 0.01

ML33-0 -540 -296 10.29 0.4 0.01 0.00 36 3.1 171

Table B 4. December 1998 Field Data (University of Waterloo)

Piezometer Eh Eh SHE pH DO Fe(II) Cr(VI) Alkalinity Turbidity Conductivity S2-

Location CHEMet DR2010 DR2010 Hach 25C

mV mV mg/L mg/L mg/L mg/L CaCO3 NTU μS/cm mg/L
86

ML34-10 -317 -73 8.61 0.4 0.01 0.00 655.3 196

ML34-8 -310 -66 8.36 0.6 0.22 0.00 69 3.5165

ML34-6 -288 -44 7.9 0.4 0.63 0.00 57 1.1 228 0.00

ML34-4 -414 -170 8.7 0.6 0.01 0.00 50 1.5 230 0.00

ML34-2 -103 141 9.7 0.6 0.01 0.00 43 1.9 232

ML34-0 -600 -356 10.79 0.6 0.01 0.00 31 2.9 190

ML35-10 -179 65 6.98 0.8 2.44 0.00 120 50 214

ML35-8 -151 93 6.83 1 2.92 0.00 58 4.8 165

ML35-6 71 315 6.33 0.3 0.12 0.00 22 1.4 153 0.00

ML35-4 -278 -34 8.30 0.4 0.01 0.00 12 14.7 106 0.08

ML35-2 -185 59 7.83 0.2 0.11 0.00 32 2.2 170 0.01

ML35-0 0 244 6.65 0.15 0.63 0.00 17 26 122

Monitoring Wells

MW13 166.7 367 6.38 1.52 NA 2.5 102 0.82 801

MW18 77.3 277 5.97 1.50 1.61 0.0 60 2.87 610

MW35D -45.8 154 6.37 0.68 5.24 0.0 62 2.97 198

MW38 185.1 385 6.20 2.54 NA 0.0 63 0.77 157

MW46 56.4 256 6.37 0.45 NA 0.0 61 0.28 175

MW47 -108.8 91 7.56 0.36 NA 0.01 26 8.47 115

MW48 213.2 413 5.98 3.12 NA 0.34 63 2.28 328

MW49 -243.3 -43 7.44 4.16 NA 0.0 51 2.45 280

MW50 -191.8 8 6.37 0.89 NA 0.08 36 42.2 188

MW52 2.70 203 6.69 0.40 NA 0.0 36 2.41 167

NOTE*****Samples collected by Waterloo were taken every second sample.

Table B 4. December 1998 Field Data (University of Waterloo)

Piezometer Eh Eh SHE pH DO Fe(II) Cr(VI) Alkalinity Turbidity Conductivity S2-

Location CHEMet DR2010 DR2010 Hach 25C

mV mV mg/L mg/L mg/L mg/L CaCO3 NTU μS/cm mg/L

(Field measurements (Eh, pH, alk, eg.) taken at every second sample, but samples collected for cation, anion, org. analysis, etc. at every point.)
87

Appendix C Lab Analysis Results (VOCs and Dissolved Gases)

Well # Vinyl Cl c-DCE TCE Well # Vinyl Cl c-DCE TCE

(μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L)

ML11-0 ND 2.8 22.8 ML15-0 BLQ 1.6 10.8

ML11-1 ND 2.6 28.6 ML15-1 1.2 ND ND

ML11-2 ND BLQ 15.4 ML15-2 0.9 1.1 ND

ML11-3 BLQ 1.4 36.4 ML15-3 1.2 ND ND

ML11-4 BLQ 9.6 45.8 ML15-4 1.3 ND ND

ML11-5 1 39.5 65.4 ML15-5 1 ND ND

ML11-6 1.1 43.3 71.2 ML15-6 1.2 BLQ ND

ML11-7 BLQ 25.2 37.7 ML15-7 1 4.2 BLQ

ML11-8 BLQ 10.7 9.2 ML15-8 11/11 1.1 4 1.3

ML11-9 ND 6.1 3.7 ML15-9 11/11 BLQ 2.8 2.9

ML11-10 ND 4.2 3.8 ML15-10 ND ND BLQ

ML31-0 ND ND 144

ML12-1 ND 1.2 17.3 ML31-1 ND ND 240

ML12-2 ND 1.3 27.1 ML31-2 ND ND 136

ML12-3 BLQ 5.8 43.2 ML31-3 ND ND 6.4

ML12-4 BLQ 18.1 43.1 ML31-4 ND ND 108

ML12-5 BLQ 17.6 11.1 ML31-5 5.3 13 396

ML12-6 BLQ 2.9 0.9 ML31-6 31.3 49.3 356

ML12-7 BLQ 1.3 ND ML31-7 29.1 48.1 331

ML12-8 ND 1.8 ND ML31-8 19.9 34.1 205

ML12-9 ND 1 ND ML31-9 5.3 4.1 8.4

ML12-10 ND ND ND ML31-10 2.8 2.2 5.4

ML13-0 1.4 1 ND ML32-0 BLQ 1.7 169

ML13-1 1.3 2.7 1 ML32-1 ND 1.3 304

ML13-2 1.1 3.1 ND ML32-2 ND ND 78.5

ML13-3 1 ND ND ML32-3 2.4 8.2 326

ML13-4 1 ND ND ML32-4 26 47.8 465

ML13-5 1 ND ND ML32-5 16.3 28.5 254

ML13-6 0.9 ND ND ML32-6 4.1 7.3 48

ML13-7 1 ND ND ML32-7 1.3 2.2 3.8

ML13-8 BLQ ND ND ML32-8 BLQ 1.3 2.5

ML13-9 BLQ ND ND ML32-9 ND BLQ 3.5

ML13-10 0.9 ND ND ML32-10 ND BLQ 5.5

ML14-0 1.2 ND ND ML33-0 1.4 1.3 ND

ML14-1 1 ND ND ML33-1 1.7 6.5 9.7

ML14-2 1.1 ND ND ML33-2 3.5 13.4 23.4

ML14-3 0.9 ND ND ML33-3 5.3 10.6 9.2

ML14-4 BLQ ND ND ML33-4 5.5 13.8 10.7

ML14-5 BLQ ND ND ML33-5 3.4 8.2 5.5

ML14-6 1 ND ND ML33-6 1.2 3.3 2.2

ML14-7 1 ND ND ML33-7 BLQ 1.4 4.6

ML14-8 0.9 ND ND ML33-8 BLQ 2.4 6.9

ML14-9 BLQ 1.2 ND ML33-9 BLQ 3.7 10.5

ML14-10 BLQ ND ND ML33-10 BLQ 3.8 8.5

TABLE C-1. November 1996 VOC Results Analyzed at ManTech
87

Appendix C Lab Analysis Results (VOCs and Dissolved Gases)

Well # Vinyl Cl c-DCE TCE Well # Vinyl Cl c-DCE TCE

(μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L)

ML11-0 ND 2.8 22.8 ML15-0 BLQ 1.6 10.8

ML11-1 ND 2.6 28.6 ML15-1 1.2 ND ND

ML11-2 ND BLQ 15.4 ML15-2 0.9 1.1 ND

ML11-3 BLQ 1.4 36.4 ML15-3 1.2 ND ND

ML11-4 BLQ 9.6 45.8 ML15-4 1.3 ND ND

ML11-5 1 39.5 65.4 ML15-5 1 ND ND

ML11-6 1.1 43.3 71.2 ML15-6 1.2 BLQ ND

ML11-7 BLQ 25.2 37.7 ML15-7 1 4.2 BLQ

ML11-8 BLQ 10.7 9.2 ML15-8 11/11 1.1 4 1.3

ML11-9 ND 6.1 3.7 ML15-9 11/11 BLQ 2.8 2.9

ML11-10 ND 4.2 3.8 ML15-10 ND ND BLQ

ML31-0 ND ND 144

ML12-1 ND 1.2 17.3 ML31-1 ND ND 240

ML12-2 ND 1.3 27.1 ML31-2 ND ND 136

ML12-3 BLQ 5.8 43.2 ML31-3 ND ND 6.4

ML12-4 BLQ 18.1 43.1 ML31-4 ND ND 108

ML12-5 BLQ 17.6 11.1 ML31-5 5.3 13 396

ML12-6 BLQ 2.9 0.9 ML31-6 31.3 49.3 356

ML12-7 BLQ 1.3 ND ML31-7 29.1 48.1 331

ML12-8 ND 1.8 ND ML31-8 19.9 34.1 205

ML12-9 ND 1 ND ML31-9 5.3 4.1 8.4

ML12-10 ND ND ND ML31-10 2.8 2.2 5.4

ML13-0 1.4 1 ND ML32-0 BLQ 1.7 169

ML13-1 1.3 2.7 1 ML32-1 ND 1.3 304

ML13-2 1.1 3.1 ND ML32-2 ND ND 78.5

ML13-3 1 ND ND ML32-3 2.4 8.2 326

ML13-4 1 ND ND ML32-4 26 47.8 465

ML13-5 1 ND ND ML32-5 16.3 28.5 254

ML13-6 0.9 ND ND ML32-6 4.1 7.3 48

ML13-7 1 ND ND ML32-7 1.3 2.2 3.8

ML13-8 BLQ ND ND ML32-8 BLQ 1.3 2.5

ML13-9 BLQ ND ND ML32-9 ND BLQ 3.5

ML13-10 0.9 ND ND ML32-10 ND BLQ 5.5

ML14-0 1.2 ND ND ML33-0 1.4 1.3 ND

ML14-1 1 ND ND ML33-1 1.7 6.5 9.7

ML14-2 1.1 ND ND ML33-2 3.5 13.4 23.4

ML14-3 0.9 ND ND ML33-3 5.3 10.6 9.2

ML14-4 BLQ ND ND ML33-4 5.5 13.8 10.7

ML14-5 BLQ ND ND ML33-5 3.4 8.2 5.5

ML14-6 1 ND ND ML33-6 1.2 3.3 2.2

ML14-7 1 ND ND ML33-7 BLQ 1.4 4.6

ML14-8 0.9 ND ND ML33-8 BLQ 2.4 6.9

ML14-9 BLQ 1.2 ND ML33-9 BLQ 3.7 10.5

ML14-10 BLQ ND ND ML33-10 BLQ 3.8 8.5

TABLE C-1. November 1996 VOC Results Analyzed at ManTech
88

ML34-0 1.4 ND ND ML35-0 1.1 BLQ 3.7

ML34-1 2.4 6.4 ND ML35-1 1.3 1.2 ND

ML34-2 5.7 16.4 5.3 ML35-2 1.1 1.1 ND

ML34-3 5.6 12.4 3 ML35-3 5 10.9 2.2

ML34-4 1.9 1.5 ND ML35-4 2.2 6.5 ND

ML34-5 1.4 BLQ ND ML35-5 1.4 2 ND

ML34-6 1.2 BLQ ND ML35-6 1.6 1.2 1.7

ML34-7 1.4 1.7 ND ML35-7 3 2.5 2.8

ML34-8 1.6 1.3 ND ML35-8 4.9 2.9 3.5

ML34-9 BLQ BLQ ND ML35-9 1.3 BLQ ND

ML34-10 ND BLQ ND ML35-10 ND ND ND

ML21-1 BLQ BLQ 2679 ML25-1 1.2 ND 50.4

ML21-2 ND ND 430 ML25-2 BLQ ND 11.4

ML21-3 ND ND 37.3 ML25-3 1.4 1.4 ND

ML21-4 ND 0.9 34.4 ML25-4 1.7 4.9 ND

ML21-5 10.8 133 260 ML25-5 3.5 7.7 ND

ML21-6 65.4 286 301 ML25-6 1.2 1.3 1.4

ML21-7 26.6 55.5 62.1 ML25-7 BLQ ND 4.6

ML22-1 BLQ 1.7 5652 MW1 1.3 7.6 256

ML22-2 2.6 14.9 ND MW2 1.6 1.4 1.1

ML22-2A ND ND 188 MW3 BLQ 4.1 517

ML22-3 4.9 46.5 ND MW4 1.4 BLQ 2.8

ML22-4 1.2 ND 0.9 MW5 ND 1 41

ML22-5 BLQ 3.6 61.9 MW6 1.8 11.3 ND

ML22-7 2 2.4 3.5 MW13 ND BLQ 21.6

ML23-1 2 19.9 1.6 MW18 2.1 15.4 32.6

ML23-2 2.1 11.9 2.8 MW18dup 2.1 15 31.7

ML23-3 13.1 118 11.4 MW35D ND ND ND

ML23-4 BLQ 4.3 ND MW38 ND ND ND

ML23-5 1.8 ND ND Decon Blank ND ND ND

ML23-6 BLQ 2.3 ND Equipment Blank ND ND ND

ML23-7 3.3 2.4 2.7 Field Blank 11/7 ND ND ND

ML24-1 1.8 5.4 ND Field Blank 11/9 ND ND ND

ML24-2 1.3 2.7 ND Field Blank 11/12 ND ND ND

ML24-3 5.1 23.1 ND Trip Blank ND ND ND

ML24-4 1.7 BLQ ND 1 ppm Std 1.1 1 2.1

ML24-5 1.1 ND ND 10 ppb Std 9.9 10.1 10.3

ML24-6 0.9 ND ND 100 ppb Std 98.5 96 97.2

ML24-7 1 ND ND Lab Blank 1 ND ND ND

Lab Blank 2 ND ND ND

Lab Blank 3 ND ND ND

Well # Vinyl Cl c-DCE TCE Well # Vinyl Cl c-DCE TCE

(μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L)

TABLE C-1. November 1996 VOC Results Analyzed at ManTech

Appendix C Lab Analysis Results (VOCs and Dissolved Gases)
89

ML11-0 BLQ 2.8 14.9 ML15-0 BLQ 2.0 12.2

ML11-1 ND 1.8 18.5 ML15-1 ND ND ND

ML11-1 dup ND 1.8 17.7 ML15-1 dup ND ND ND

ML11-2 BLQ 1.3 26.9 ML15-2 1.1 2.2 ND

ML11-3 BLQ 2.4 45 ML15-3 BLQ ND ND

ML11-4 BLQ 4.3 30 ML15-4 BLQ ND ND

ML11-5 1.1 33.3 60.6 ML15-5 0.9 ND ND

ML11-6 BLQ 9.6 11.2 ML15-6 BLQ 1.7 BLQ

ML11-7 BLQ 3.3 1.1 ML15-7 BLQ 2.3 1.1

ML11-8 BLQ 2.7 BLQ ML15-8 BLQ 1.4 1.2

ML11-9 ND 2.5 ND ML15-9 ND 0.9 1.3

ML11-10 ND 1.1 ND ML15-10 ND BLQ BLQ

ML31-0 ND ND 49.5

ML12-1 ND BLQ 9.2 ML31-1 ND ND 60.5

ML12-2 BLQ 1.9 31.1 ML31-2 ND BLQ 45.6

ML12-3 BLQ 6.8 30.7 ML31-3 ND ND 2.4

ML12-4 BLQ 15.2 38.9 ML31-3 dup ND ND 2.8

ML12-5 BLQ 16.5 18.8 ML31-4 ND BLQ 531

ML12-6 BLQ 1.2 ND ML31-5 5.9 16.5 2000

ML12-7 ND BLQ ND ML31-6 30 52.2 680

ML12-7 dup ND BLQ ND ML31-7 17.7 31.5 280

ML12-8 ND ND ND ML31-8 7.5 14.1 73.5

ML12-9 ND ND ND ML31-9 6.8 7.4 22.3

ML12-10 ND ND ND ML31-10 3.6 2.1 4.5

ML13-0 1.3 BLQ ND ML32-0 BLQ 6.6 80.9

ML13-1 BLQ ND ND ML32-1 ND 1.0 104

ML13-1 dup BLQ ND ND ML32-2 ND 1.0 4.7

ML13-2 0.9 2.5 ND ML32-3 3.3 15.2 1390

ML13-3 BLQ 1.3 ND ML32-4 36.8 64.9 724

ML13-4 BLQ ND ND ML32-5 16.3 23.3 280

ML13-5 BLQ ND ND ML32-6 2.9 3.3 7.7

ML13-6 BLQ ND ND ML32-6 dup 2.3 3.2 6.8

ML13-7 BLQ ND ND ML32-7 3.4 2.3 2.2

ML13-8 BLQ ND ND ML32-8 BLQ 1.3 2.0

ML13-9 BLQ ND ND ML32-9 ND 1.1 6.9

ML13-10 ND ND ND ML32-10 ND BLQ 4.8

ML14-0 0.9 ND ND ML33-0 1.1 BLQ ND

ML14-1 BLQ ND ND ML33-1 6.0 26.5 22.1

ML14-2 ND ND ND ML33-1 dup 6.4 28.0 22.9

ML14-3 BLQ ND ND ML33-2 28.8 26.5 4.9

ML14-4 BLQ ND ND ML33-3 7.2 27.1 22.6

ML14-5 BLQ ND ND ML33-4 2.0 1.8 BLQ

ML14-6 BLQ ND ND ML33-5 2.7 8.7 7.1

ML14-7 BLQ ND ND ML33-6 1.1 1.8 1.7

ML14-8 2.1 ND ND ML33-7 1.5 1.9 3.0

ML14-9 BLQ BLQ ND ML33-8 ND 1.4 3.7

ML14-9 dup BLQ ND ND ML33-8 dup ND 1.2 2.7

ML14-10 BLQ ND ND ML33-9 ND 1.1 1.5

TABLE C-2. February 1997 VOC Results Analyzed at ManTech

Well # Vinyl Cl c-DCE TCE Well # Vinyl Cl c-DCE TCE

(μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L)
90

ML34-0 BLQ ND ND ML35-0 ND ND 23.0

ML34-0 dup BLQ ND ND ML35-1 3.2 BLQ ND

ML34-1 4.2 24.0 41.7 ML35-2 1.5 BLQ ND

ML34-2 4.4 18.1 8.3 ML35-2 dup 1.5 BLQ ND

ML34-3 2.2 1.4 ND ML35-3 2.5 17.3 16.9

ML34-4 1.5 BLQ ND ML35-4 3.7 22.4 2.8

ML34-5 1.9 ND ND ML35-5 1.4 4.4 ND

ML34-6 1.7 BLQ ND ML35-6 2.7 1.4 0.9

ML34-7 1.5 0.9 ND ML35-7 4.0 2.3 1.5

ML34-8 1.2 1.1 ND ML35-8 4.2 1.5 BLQ

ML34-9 1.9 1.6 ND ML35-9 3.4 1.0 ND

ML34-10 1.6 2.0 ND ML35-10 1.6 1.3 ND

ML21-1 BLQ ND 3330 ML25-1 0.9 42.5 133

ML21-2 ND ND 448 ML25-1 dup 1.1 45.5 147

ML21-3 ND ND 2.5 ML25-2 BLQ 1.0 2.6

ML21-4 ND ND 11.8 ML25-3 1.0 1.3 ND

ML21-5 7.3 91.3 195 ML25-4 1.5 4.6 ND

ML21-5 dup 7.5 93.7 210 ML25-5 2.0 8.7 ND

ML21-6 39.5 179 179 ML25-6 4.0 10.4 ND

ML21-7 8.2 17.8 14.4 ML25-7 BLQ 0.9 2.3

ML22-2 9.1 62.3 3.5 MW13 BLQ 2.2 61.9

ML22-3 1.9 6.7 2.4 MW18 1.3 7.9 14.0

ML22-4 1.0 ND BLQ MW35D ND ND 0.9

ML22-4 dup 0.9 ND ND MW38 ND ND 1.3

ML23-1 1.5 7.9 BLQ MW38 dup ND ND 1.2

ML23-2 1.2 4.1 ND MW46 1.6 10.6 636

ML23-3 2.1 14.5 3.3 MW47 1.8 1.0 BLQ

ML23-4 BLQ 2.4 ND MW48 BLQ 2.4 471

ML24-1 BLQ 1.0 ND MW49 BLQ ND 2.8

ML24-2 1.0 BLQ ND MW50 ND ND 3.4

ML24-3 2.7 13.0 1.0

ML24-4 1.1 ND ND

ML24-5 BLQ ND ND

ML24-5 BLQ ND ND BLQ = Below limit of quantitation 1 ppb

ML24-6 BLQ ND ND ND = None detected

ML24-7 BLQ ND ND

TABLE C-2. February 1997 VOC Results Analyzed at ManTech

Well # Vinyl Cl c-DCE TCE Well # Vinyl Cl c-DCE TCE

(μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L)
91

ML11-0 ND 1.4 12.6 ML15-0 0.9 BLQ 4.9

ML11-1 ND 1.0 14.7 ML15-1 BLQ ND ND

ML11-2 ND 2.0 44.9 ML15-2 1.0 0.9 ND

ML11-3 ND 1.8 32.8 ML15-3 BLQ ND ND

ML11-4 1.0 24.6 79.6 ML15-4 BLQ ND ND

ML11-5 BLQ 30.1 46.7 ML15-5 BLQ ND ND

ML11-6 ND 13.1 15.8 ML15-6 ND BLQ ND

ML11-7 ND 11.1 13.4 ML15-7 ND 1.5 1.0

ML11-8 ND 2.5 ND ML15-8 ND 1.5 1.1

ML11-9 ND 2.0 ND ML15-9 ND 1.5 1.3

ML11-10 ND 1.0 ND ML15-10 ND ND ND

ML31-0 ND ND 80.3

ML12-1 ND ND 11.0 ML31-1 ND ND 66.2

ML12-2 ND 0.9 18.1 ML31-2 ND ND 42.3

ML12-3 BLQ 6.5 42.0 ML31-3 ND ND 2.8

ML12-4 BLQ 16.2 44.4 ML31-4 ND ND 180

ML12-5 BLQ 14.1 17.9 ML31-5 9.1 21.6 620

ML12-6 ND 0.9 ND ML31-6 29.7 42.9 635

ML12-7 ND ND ND ML31-7 23.2 39.4 475

ML12-8 ND ND ND ML31-8 13.6 14.9 109

ML12-9 ND ND ND ML31-9 24.5 12.0 5.6

ML12-10 ND ND ND ML31-10 10.4 6.3 3.8

ML13-0 1.9 ND ND ML32-0 ND 1.7 84.6

ML13-1 1.4 1.7 ND ML32-1 ND 1.0 56.4

ML13-2 1.0 2.1 ND ML32-2 ND ND 7.1

ML13-3 BLQ BLQ ND ML32-3 9.3 7.2 3.1

ML13-4 BLQ ND ND ML32-4 11.7 25.1 421

ML13-5 BLQ ND ND ML32-5 12.7 23.6 96.7

ML13-6 BLQ ND ND ML32-6 6.3 7.3 9.1

ML13-7 BLQ ND ND ML32-7 8.3 3.6 1.7

ML13-8 BLQ ND ND ML32-8 7.3 5.1 1.4

ML13-9 BLQ ND ND ML32-9 ND ND 3.0

ML13-10 BLQ ND ND ML32-10 ND ND 3.0

ML14-0 0.9 ND ND ML33-0 0.9 ND ND

ML14-1 BLQ ND ND ML33-1 3.0 6.3 3.7

ML14-2 BLQ ND ND ML33-2 16.3 3.4 4.9

ML14-3 BLQ ND ND ML33-3 14.5 7.0 1.7

ML14-4 BLQ ND ND ML33-4 2.9 3.2 ND

ML14-5 BLQ ND ND ML33-5 2.3 2.9 ND

ML14-6 BLQ ND ND ML33-6 2.1 1.2 ND

ML14-7 1.8 ND ND ML33-7 3.5 2.0 1.0

ML14-8 BLQ ND ND ML33-8 BLQ 1.1 1.4

ML14-9 BLQ ND ND ML33-9 ND ND ND

ML14-10 BLQ ND ND ML33-10 ND ND 0.9

TABLE C-3. June 1997 VOC Results Analyzed at ManTech

Well # Vinyl Cl c-DCE TCE Well # Vinyl Cl c-DCE TCE

(μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L)
92

TABLE C-3. June 1997 VOC Results Analyzed at ManTech

Well # Vinyl Cl c-DCE TCE Well # Vinyl Cl c-DCE TCE

(μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L)

ML34-0 BLQ ND ND ML35-0 BLQ ND 2.7

ML34-1 1.9 3.1 3.9 ML35-1 1.6 ND ND

ML34-2 1.7 5.1 1.2 ML35-2 1.8 ND ND

ML34-3 3.6 1.1 ND ML35-3 3.4 10.4 6.8

ML34-4 1.2 ND ND ML35-4 3.0 9.0 1.5

ML34-5 1.4 ND ND ML35-5 1.4 2.2 ND

ML34-6 1.3 ND ND ML35-6 1.8 ND ND

ML34-7 1.6 ND ND ML35-7 2.0 BLQ ND

ML34-8 1.1 ND ND ML35-8 3.2 1.3 ND

ML34-9 1.1 ND ND ML35-9 2.5 1.2 ND

ML34-10 1.0 ND ND ML35-10 1.7 1.8 ND

ML21-1 Not sampled-tracer ML25-1 1.4 14.8 81.6

ML21-2 Not sampled-tracer ML25-2 1.2 1.9 ND

ML21-3 ND ND 7.5 ML25-3 1.6 6.0 ND

ML21-4 ND BLQ 21.1 ML25-4 5.6 8.1 ND

ML21-5 12.7 116 206 ML25-5 8.3 28.0 ND

ML21-6 37.0 152 156 ML25-6 1.4 3.9 ND

ML21-7 19.7 28.2 21.1 ML25-7 ND ND 1.1

ML22-1 ND 1.6 4320 MW12 ND 1.2 4.7

ML22-2 3.4 41.2 ND MW13 ND 0.7 24.0

ML22-3 7.3 27.6 0.9 MW18 BLQ 4.5 7.7

ML22-4 BLQ ND ND

ML22-5 1.4 5.2 72.9 MW35D ND ND ND

ML22-6 dry MW38 ND ND BLQ

ML22-7 dry MW46 1.9 6.2 63.3

ML23-1 3.0 25.9 ND MW47 1.7 2.6 1.5

ML23-2 1.8 5.7 ND MW48 ND 4.7 535

ML23-3 8.6 52.2 3.3 MW49 Samples Broken

ML23-4 1.0 2.0 ND MW50 BLQ 3.7 156

ML23-5 0.9 ND 12.7

ML23-6 BLQ ND 9.2 BLQ=<1 ppb

ML23-7 10.7 8.9 8.5 ND=none detected

ML24-1 2.0 8.9 ND

ML24-2 1.5 2.4 ND

ML24-3 1.8 5.5 ND

ML24-4 1.0 ND ND Benzene Toluene Ethylbenzene

ML24-5 BLQ ND ND MW12 ND ND ND

ML24-6 BLQ ND ND

ML24-7 BLQ ND ND
93

Piezometer Vinyl Chloride cDCE TCE Piezometer Vinyl Chloride cDCE TCE

(ppb) (ppb) (ppb) (ppb) (ppb) (ppb)

ML11-10 ND 3.7 ND ML-15-10 ND 1.0 1.0

ML11-9 ND 4.6 ND ML-15-9 <1.0 2.6 2.1

ML11-8 ND 4.6 ND ML-15-8 1.2 1.9 1.8

ML11-7 dup ND 4.6 1.2 ML-15-7 1.3 3.5 1.9

ML11-7 ND 5.2 1.2 ML-15-6 <1.0 3.4 1.2

ML11-6 <1.0 28.1 24.0 ML-15-5 dup <1.0 <1.0 ND

ML11-5 dup <1.0 33.2 26.8 ML-15-5 <1.0 <1.0 ND

ML11-5 <1.0 31.3 28.2 ML-15-4 1.1 ND ND

ML11-4 <1.0 45.6 114 ML-15-3 1.4 ND ND

ML11-3 ND 10.6 47.6 ML-15 -2 5.3 5.5 ND

ML11-2 ND 2.4 12.7 ML-15 -1 1.5 ND ND

ML11-1 ND ND 7.1 ML-15 -0 1.4 ND ND

ML11-0 ND 2.0 10.5

ML12-10 ND ND ND ML-31-10

ML12-9 ND <1.0 ND ML-31-9 38.8 14.8 21.3

ML12-8 ND 1.1 ND ML-31-8

ML12-7 1.1 3.3 2.3 ML-31-7 32.4 42.2 320

ML12-6 1.3 2.7 ND ML-31-6

ML12-5 4.0 35.2 58.6 ML-31-5 6.4 17.2 673

ML12-4 <1.0 13.3 41.7 ML-31-4

ML12-3 ND 7.5 33.8 ML-31-3 dup ND ND 6.8

ML12-2 ND 2.6 19.0 ML-31-3 ND ND 7.7

ML12-1 dup ND <1.0 11.8 ML-31-1 ND ND 11.0

ML12-1 ND 1.1 12.0 ML-31-0

ML13-10 ND ND ND ML-32-10 ND ND 1.2

ML13-9 2.2 ND ND ML-32-9 ND ND 1.2

ML13-8 1.3 ND ND ML-32-8 20.2 6.0 1.3

ML13-7 2.0 ND ND ML-32-7 27.8 7.1 3.2

ML13-6 <1.0 <1.0 <1.0 ML-32-6 23.3 35.2 98.0

ML13-5 dup 1.0 ND ND ML-32-5 dup 17.8 48.1 470

ML13-5 1.2 ND ND ML-32-5 19.5 49.9 425

ML13-4 1.9 ND ND ML-32-4 5.8 13.4 563

ML13-3 2.0 1.3 ND ML-32-3 ND 2.3 370

ML13-2 3.3 2.8 ND ML-32-2 ND ND 4.5

ML13-1 11.3 2.1 ND ML-32-1 ND ND 8.2

ML13-0 15.0 1.4 ND ML-32-0 <1.0 12.4 63.1

ML-14-10 <1.0 ND ND ML-33-10 <1.0 <1.0 ND

ML-14-9 1.3 ND ND ML-33-9 <1.0 <1.0 ND

ML-14-8 <1.0 ND ND ML-33-8 2.2 ND ND

ML-14-7 dup <1.0 ND ND ML-33-7 dup 15.6 2.8 ND

ML-14-7 <1.0 ND ND ML-33-7 16.7 2.9 ND

ML-14-6 <1.0 ND ND ML-33-6 13.0 1.5 ND

ML-33-5 17.0 3.3 3.2

ML-14-4 1.0 ND ND ML-33-4 18.3 7.6 ND

ML-14-3 2.2 1.2 ND ML-33-3 9.5 7.2 7.5

ML-14-2 5.6 ND ND ML-33-2 14.2 4.3 11.8

ML-14-1 8.1 ND ND ML-33-1 <1.0 3.1 6.1

ML-14-0 5.3 ND ND ML-33-0 <1.0 ND ND

TABLE C-4. December 1998 VOC Results Analyzed at ManTech
94

ML-34-10 1.6 ND ND ML-23.5-8 1.6 1.7 ND

ML-34-9 2.1 ND ND ML-23.5-7 2.2 1.1 ND

ML-34-8 2.6 ND ND ML-23.5-6 3.9 ND ND

ML-34-7 4.9 <1.0 ND ML-23.5-5 <1.0 1.0 ND

ML-34-6 3.7 ND ND ML-23.5-4 <1.0 <1.0 ND

ML-34-5 dup 2.9 1.1 ND ML-23.5-3 1.4 3.8 ND

ML-34-5 3.5 1.1 ND ML-23.5-2 1.8 5.4 1.5

ML-34-4 3.3 ND ND ML-23.5-1 dup 4.1 7.0 3.0

ML-34-3 <1.0 1.0 ND ML-23.5-1 4.4 7.5 2.9

ML-34-2 <1.0 4.7 1.9 ML-23.5-0 4.6 20.2 1.3

ML-34-1 5.2 <1.0 ND

ML-34-0 2.1 ND ND

ML-35-10 1.3 2.6 ND ML-24-7 dup ND ND ND

ML-35-9 3.4 1.7 ND ML-24-7 <1.0 ND ND

ML-35-8 3.0 1.6 ND ML-24-6 <1.0 ND ND

ML-35-7 ML-24-5 1.3 ND ND

ML-35-6 2.3 1.1 ND ML-24-4 2.6 ND ND

ML-35-5 ML-24-3 16.9 7.3 1.0

ML-35-4 3.3 2.1 ND ML-24-2 13.6 8.2 ND

ML-35-3 ML-24-1 dup 1.2 7.8 ND

ML-35-2 4.0 ND ND ML-24-1 1.4 8.5 ND

ML-35-1 5.3 ND ND

ML-35-0 1.3 ND 1.1

ML-21-7 27.1 63.6 40.3 ML-25-7 1.1 1.0 ND

ML-21-6 42.9 173 132 ML-25-6 3.1 1.8 ND

ML-21-5 dup 11.7 137 156 ML-25-5 9.5 25.9 ND

ML-21-5 12.6 135 152 ML-25-4 dup 4.8 19.0 ND

ML-21-4 <1.0 21.0 50.2 ML-25-4 5.3 20.2 ND

ML-21-3 ND 1.8 44.4 ML-25-3 4.0 8.0 ND

ML-21-2 <1.0 ND 438 ML-25-2 2.6 5.9 ND

ML-21-1 ND ND 3790 ML-25-1 3.8 3.9 3.6

ML-22.5-0 2.9 3.7 ND Monitoring Wells

ML-22.5-8 2.3 1.3 1.2

ML-22.5-7 3.0 1.0 1.4 MW-13 ND ND 8.2

ML-22.5-6 5.9 1.4 1.2 MW-18 dup ND ND ND

ML-22.5-5 2.8 1.7 4.2 MW-18 ND ND ND

ML-22.5-4 2.1 3.3 7.3 MW-35D ND ND ND

ML-22.5-3 <1.0 2.2 14.6 MW-38 ND ND ND

ML-22.5-2 dup <1.0 2.9 14.3 MW-46 8.7 45.6 51.9

ML-22.5-2 1.4 4.6 159 MW-47 2.7 1.2 ND

ML-22.5-1 12.0 52.1 242 MW-48 5.8 60.0 347

MW-49 2.0 ND <1.0

Blanks MW-50 2.9 17.3 290

TRIP BLANK 12\1 ND ND ND MW-52 1.4 50.6 164

FIELD BLANK 12\ ND ND ND

FIELD BLANK12/6 ND 1.7 ND

FIELD BLANK12/9 <1.0 ND ND

FIELD BLANK12/ <1.0 1.2 ND

ML31-BLANK ND 2.4 ND

ML32-BLANK ND ND ND

ML33-BLANK ND ND ND

Piezometer Vinyl Chloride cDCE TCE Piezometer Vinyl Chloride cDCE TCE

(ppb) (ppb) (ppb) (ppb) (ppb) (ppb)

TABLE C-4. December 1998 VOC Results Analyzed at ManTech
95

Methane Ethene Ethane Methane Ethene Ethane

Well # mg/L mg/L mg/L Well # mg/L mg/L mg/L

ML11-0 BLQ ND ND ML15-0 0.592 BLQ 0.015

ML11-1 0.038 ND ND ML15-1 2 0.003 0.015

ML11-1 dup 0.033 ND ND ML15-2 3.47 0.004 0.004

ML11-2 0.085 ND ND ML15-3 8.85 BLQ 0.009

ML11-3 0.087 ND ND ML15-4 3.4 BLQ 0.01

ML11-4 0.038 ND ND ML15-4 dup 3.24 BLQ 0.01

ML11-5 0.027 ND ND ML15-5

ML11-6 0.027 ND ND ML15-6

ML11-6 dup 0.024 ND ND ML15-7 0.102 ND 0.002

ML11-7 0.042 ND ND ML15-8 11/1 0.082 ND BLQ

ML11-8 0.127 ND ND ML15-9 11/1 BLQ ND ND

ML11-9 0.919 ND ND ML15-9 11/13 0.24 ND ND

ML11-10 BROKEN ML15-9 dup 0.227 ND ND

ML15-10 0.003 ND ND

ML12-1 0.071 ND ND ML31-0 BLQ ND ND

ML12-2 0.094 ND ND ML31-0 dup BLQ ND ND

ML12-3 0.06 ND ND ML31-1 0.009 ND ND

ML12-3 dup 0.057 ND ND ML31-2 0.015 ND ND

ML12-4 0.793 ND BLQ ML31-3 0.027 ND ND

ML12-5 30.96 0.007 0.01 ML31-4 BLQ ND ND

ML12-6 3.5 BLQ BLQ ML31-5 0.002 ND ND

ML12-7 3.03 ND BLQ ML31-6 BLQ BLQ ND

ML12-8 1.17 ND ND ML31-7 BLQ ND ND

ML12-9 3.03 ND ND ML31-8 0.043 ND ND

ML12-10 BLQ ND ND ML31-9 1.3 ND ND

ML31-9 dup 1.19 ND ND

ML31-10 BLQ ND ND

ML13-0 2.74 0.003 0.007 ML32-0 0.995 0.004 0.004

ML13-1 1.36 0.005 0.004 ML32-1 0.01 ND ND

ML13-2 7.04 0.004 0.006 ML32-2 0.044 ND ND

ML13-2 dup 6.53 0.003 0.005 ML32-3 0.043 ND ND

ML13-3 3.39 BLQ 0.007 ML32-4 0.099 BLQ ND

ML13-4 4.17 BLQ 0.003 ML32-5 0.09 BLQ BLQ

ML13-5 6.38 BLQ 0.002 ML32-6 0.279 BLQ BLQ

ML13-6 6.7 BLQ 0.003 ML32-7 0.549 BLQ BLQ

ML13-7 0.294 BLQ 0.003 ML32-7 dup 0.503 ND BLQ

ML13-8 1.77 BLQ 0.004 ML32-8 BLQ ND ND

ML13-9 1.09 BLQ 0.004 ML32-9 BLQ ND ND

ML13-10 1.54 BLQ BLQ ML32-10 BLQ ND ND

ML14-0 2.54 BLQ BLQ ML33-0 7.39 0.012 0.025

ML14-1 5.62 0.004 0.009 ML33-1 1.63 0.012 0.011

ML14-2 1.16 BLQ 0.008 ML33-2 1.07 0.022 0.014

ML14-2 dup 1.08 BLQ 0.007 ML33-3 1.17 0.014 0.01

ML14-3 1.32 BLQ 0.01 ML33-4 1.39 0.022 0.015

ML14-4 0.955 BLQ 0.007 ML33-5 1.21 0.011 0.009

ML14-5 1.61 BLQ 0.007 ML33-6 0.379 0.004 0.003

ML14-6 1.67 BLQ 0.008 ML33-6 dup 0.361 0.004 0.003

ML14-7 1.05 BLQ 0.006 ML33-7 BLQ ND ND

TABLE C-5. November 1996 Dissolved Gas Results Analyzed at ManTech
96

ML14-8 1.09 BLQ 0.006 ML33-8 0.217 ND BLQ

ML14-9 1.16 ND 0.002 ML33-9 0.817 BLQ BLQ

ML14-10 0.358 ND BLQ ML33-10 0.155 ND BLQ

ML34-0 4.75 0.008 0.033 ML35-0 4.52 0.009 0.032

ML34-1 2.99 0.019 0.014 ML35-1 5.13 0.01 0.017

ML34-2 2.42 0.022 0.016 ML35-2 3.8 0.008 0.01

ML34-3 2.93 0.026 0.023 ML35-3 2.22 0.027 0.019

ML34-4 2.36 0.02 0.029 ML35-4 2.43 0.036 0.036

ML34-5 2.29 0.017 0.03 ML35-4 dup 2.39 0.035 0.034

ML34-6 2.19 0.019 0.031 ML35-5 2.66 0.027 0.039

ML34-6 dup 2.05 0.018 0.032 ML35-6 1.37 0.011 0.028

ML34-7 2.29 0.01 0.02 ML35-7 0.73 0.005 0.01

ML34-8 2.73 0.007 0.013 ML35-8 0.567 0.003 0.007

ML34-9 1.83 BLQ 0.002 ML35-9 0.74 BLQ BLQ

ML34-10 0.849 BLQ 0.003 ML35-10 0.068 ND ND

ML21-1 0.077 ND ND ML24-1 3.07 0.022 0.02

ML21-2 0.028 ND ND ML24-2 2.09 0.01 0.016

ML21-3 0.062 ND ND ML24-3 3.07 0.014 0.017

ML21-4 0.054 ND ND ML24-4 2.36 0.003 0.02

ML21-5 0.022 BLQ 0.009 ML24-5 1.78 BLQ 0.019

ML21-6 0.149 BLQ ND ML24-6 1.66 BLQ 0.015

ML21-7 0.216 BLQ ND ML24-6 dup 1.54 BLQ 0.014

ML22-1 0.112 ND ND ML25-1 0.026 BLQ 0.002

ML22-2 1.88 0.043 0.059 ML25-2 0.354 0.004 0.008

ML22-2A 0.05 ND ND ML25-2dup 0.323 0.003 0.007

ML22-3 0.832 0.012 0.013 ML25-3 2.55 0.01 0.02

ML22-3 dup 0.77 0.011 0.012 ML25-4 1.24 0.014 0.02

ML22-4 2.21 blq 0.022 ML25-5 1.98 0.024 0.024

ML22-5 ML25-6 2.45 0.015 0.021

ML22-7 0.287 nd nd ML25-7 ND ND ND

ML23-1 3.45 0.044 0.033 MW1 0.019 0.002 0.005

ML23-2 0.746 0.023 0.016 MW13 0.023 ND ND

ML23-3 0.918 0.021 0.018 MW18 0.13 ND ND

ML23-3 dup 0.847 0.019 0.017 MW2 4.78 0.012 0.0025

ML23-4 2.45 BLQ 0.005 MW2 dup 4.48 0.011 0.024

ML23-5 0.207 BLQ 0.011 MW3 0.036 ND ND

ML23-6 MW35D 0.103 ND ND

ML23-7 0.671 ND ND MW38 BLQ ND ND

MW4 3.45 0.003 0.009

MW5 0.002 ND BLQ

Methane Ethene Ethane Methane Ethene Ethane

Well # mg/L mg/L mg/L Well # mg/L mg/L mg/L

TABLE C-5. November 1996 Dissolved Gas Results Analyzed at ManTech
97

Methane Ethene Ethane Methane Ethene Ethane

Well # mg/L mg/L mg/L Well # mg/L mg/L mg/L

Decon Blank 11/19 BLQ ND ND

Decon Blank 11/20 BLQ ND ND

Decon Blank 11/20 dup BLQ ND ND

Lab Blank1 BLQ ND ND

Lab Blank2 BLQ ND ND

Lab Blank3 BLQ ND ND

Lab Blank4 BLQ ND ND

Lab Blank5 BLQ ND ND

10 ppm CH4 10.05 NA NA

100 ppm Ch4 99.95 NA NA

1000 ppm CH4 1002.39 NA NA

1% CH4 1.03 NA NA

10% CH4 10.02 NA NA

10 ppm C2H4 NA 10.14 NA

100 ppm C2H4 NA 99.96 NA

1000 ppm C2H4 NA 1000.56 NA

10 ppm C2H6 NA NA 9.96

100 ppm C2H6 NA NA 100.05

1000 ppm C2H6 NA NA 999.56

Limits of Quantitation 0.001 0.003 0.002

BLQ = Below Limit of Quantitation

ND = None Detected

NA = Not Analyzed

TABLE C-5. November 1996 Dissolved Gas Results Analyzed at ManTech
98

Methane Ethene Ethane Methane Ethene Ethane

Well # mg/L mg/L mg/L Well # mg/L mg/L mg/L

ML11-0 0.016 ND ND ML14-5 0.354 BLQ 0.003

ML11-1 0.05 ND ND ML14-6 0.393 BLQ 0.002

ML11-2 0.112 ND ND ML14-7 0.413 ND 0.003

ML11-3 0.062 ND ND ML14-8 0.605 BLQ ND

ML11-4 0.035 ND ND ML14-9 1.695 ND BLQ

ML11-4 dup 0.03 ND ND ML14-9 dup 1.677 ND BLQ

ML11-5 0.219 ND ND ML14-10 1.208 ND BLQ

ML11-6 0.764 ND ND ML15-0 1.28 BLQ 0.013

ML11-7 1.104 ND ND ML15-1 9.851 0.003 0.008

ML11-8 1.211 ND ND ML15-2 No Sample

ML11-9 1.248 ND ND ML15-3 8.679 BLQ 0.004

ML11-9 dup 1.118 ND ND ML15-4 3.637 BLQ 0.004

ML11-10 1.187 ND BLQ ML15-5 1.688 ND 0.006

ML12-1 0.061 ND ND ML15-5 dup 1.642 ND 0.006

ML12-2 0.118 ND ND ML15-6 0.585 ND 0.003

ML12-3 0.082 ND ND ML15-7 No Sample

ML12-4 0.086 ND ND ML15-8 0.44 ND ND

ML12-5 Sample Broken ML15-9 0.193 ND ND

ML12-6 11.678 ND ND ML15-10 0.028 ND ND

ML12-7 0.342 ND ND ML21-1 0.016 ND ND

ML12-7 dup 0.339 ND ND ML21-2 No Sample 

ML12-8 0.043 ND ND ML21-3 0.031 ND ND

ML12-9 0.023 ND ND ML21-3 dup 0.026 ND ND

ML12-10 0.004 ND ND ML21-4 0.029 ND ND

ML13-0 4.094 0.004 0.004 ML21-4 dup 0.028 ND ND

ML13-1 2.705 ND 0.002 ML21-5 0.026 ND ND

ML13-2 9.528 0.003 0.004 ML21-6 0.098 ND ND

ML13-2 dup 9.881 0.003 0.003 ML21-7 0.0381 ND ND

ML13-3 11.135 ND 0.003 ML22-2 5.026 0.034 0.027

ML13-4 5.067 ND 0.002 ML22-3 0.926 0.007 0.008

ML13-5 7.105 BLQ 0.002 ML22-4 3.631 BLQ 0.006

ML13-5 dup 7.105 BLQ 0.002 ML23-1 5.304 0.026 0.018

ML13-6 5.544 ND 0.002 ML23-1 dup 5.076 0.024 0.018

ML13-7 2.666 ND 0.002 ML23-2 3.207 0.005 0.005

ML13-8 1.71 ND 0.002 ML23-2 dup 2.696 0.004 0.004

ML13-9 1.37 BLQ 0.002 ML23-3 0.067 0.004 0.003

ML13-10 0.612 ND BLQ ML23-4 0.76 ND ND

ML13-10 dup 0.63 BLQ BLQ ML24-1 3.391 ND ND

ML14-0 2.242 BLQ 0.013 ML24-2 3.163 0.004 0.006

ML14-1 11.35 0.003 0.007 ML24-3 4.049 0.008 0.010

ML14-2 9.851 BLQ 0.003 ML24-4 2.871 BLQ 0.007

ML14-3 2.019 ND ND ML24-4 dup 2.524 ND 0.006

ML14-4 0.406 ND 0.003 ML24-5 0.985 ND 0.006

ML14-4 dup 0.379 BLQ 0.004 ML24-5 dup 0.959 ND 0.005

ML24-6 1.022 BLQ 0.005 ML33-6 0.036 ND ND

TABLE C-6. February 1997 Dissolved Gas Results Analyzed at ManTech
99

ML24-7 1.023 BLQ 0.004 ML33-7 0.398 ND ND

ML25-1 2.373 0.004 0.007 ML33-8 0.013 ND ND

ML25-2 0.276 ND BLQ ML33-9 0.693 ND ND

ML25-3 3.763 0.007 0.012 ML33-10 0.228 ND ND

ML25-4 2.372 0.004 0.004 ML34-0 2.722 0.003 0.016

ML25-5 1.572 0.004 0.004 ML34-1 4.485 0.046 0.027

ML25-6 4.515 0.026 0.024 ML34-2 5.381 0.028 0.021

ML25-6 dup 4.127 0.024 0.022 ML34-3 6.753 0.026 0.023

ML25-7 0.245 ND ND ML34-4 7.326 0.032 0.025

ML31-0 0.026 ND ND ML34-5 3.469 0.011 0.010

ML31-1 0.009 ND ND ML34-5 dup 3.069 0.009 0.009

ML31-2 0.011 ND ND ML34-6 3.396 0.009 0.010

ML31-3 0.035 ND ND ML34-7 2.916 0.008 0.008

ML31-4 0.012 ND ND ML34-8 2.030 0.005 0.006

ML31-4 dup 0.011 ND ND ML34-9 6.981 0.018 0.023

ML31-5 0.025 ND ND ML34-9 dup 6.404 0.016 0.021

ML31-6 0.062 ND ND ML34-10 3.004 0.006 0.008

ML31-7 0.028 ND ND ML35-0 0.231 ND 0.003

ML31-8 0.024 ND ND ML35-1 3.518 BLQ 0.003

ML31-9 0.987 ND ND ML35-2 6.102 0.006 0.007

ML31-10 0.704 ND ND ML35-3 0.723 0.013 0.008

ML31-10 dup 0.717 ND ND ML35-4 1.600 0.019 0.012

ML32-0 0.023 ND ND ML35-5 4.441 0.032 0.030

ML32-1 0.027 ND ND ML35-6 0.704 0.004 0.007

ML32-2 0.028 ND ND ML35-7 0.934 0.004 0.008

ML32-2 dup 0.026 ND ND ML35-8 0.624 BLQ 0.002

ML32-3 0.031 ND ND ML35-8 dup 0.551 BLQ 0.002

ML32-4 0.03 ND ND ML35-9 2.504 0.004 0.007

ML32-5 0.086 ND ND ML35-9 dup 2.282 0.004 0.006

ML32-6# 0.237 ND ND ML35-10 0.735 BLQ BLQ

ML32-7 0.815 ND ND MW13 0.022 ND ND

ML32-8 0.483 ND ND MW18 0.069 ND ND

ML32-8 dup 0.482 ND ND MW35D 0.092 ND ND

ML32-9 ND ND ND MW38 0.003 ND ND

ML32-10 0.006 ND ND MW46 0.316 ND ND

ML33-0 3.403 BLQ 0.005 MW47 6.468 ND ND

ML33-0 dup 3.117 BLQ 0.004 MW48 0.013 ND ND

ML33-1 3.438 0.042 0.026 MW48 dup 0.014 ND ND

ML33-1 dup 3.334 0.040 0.025 MW49 5.388 BLQ 0.005

ML33-2 1.443 0.003 0.002 MW50 0.069 ND ND

ML33-3 Sample Broken MW50 dup 0.02 ND ND

ML33-4 1.058 BLQ 0.002 ND=non-detect

ML33-5 0.604 0.004 0.002 BLQ=Below limit of quantitation

Methane Ethene Ethane Methane Ethene Ethane

Well # mg/L mg/L mg/L Well # mg/L mg/L mg/L

TABLE C-6. February 1997 Dissolved Gas Results Analyzed at ManTech
100

 Piezometer Ethene Ethane Piezometer Ethene Ethane

(mg/L in liquid) (mg/L in liquid) (mg/L in liquid) (mg/L in liquid)

ML11-10 ND ND ML21-7 ND ND

ML11-9 ND ND ML21-6 ND ND

ML11-8 ND ND ML21-5 ND ND

ML11-7(8:40) ND ND ML21-4 ND ND

ML11-7(8:20) ND ND ML21-3 ND ND

ML11-6 ND ND ML21-2 ND ND

ML11-5(16:45) ND ND ML21-1 ND ND

ML11-5 (17:14) ND ND

ML11-4 ND ND ML22.5-0 0.022 0.010

ML11-3 ND ND ML22.5-0 FDup 0.023 0.010

ML11-2 ND ND ML22.5-8 ND ND

ML11-1 ND ND ML22.5-7 FDup ND ND

ML22.5-7 ND ND

ML12-10 ND ND ML22.5-6 <0.003 ND

ML12-9 ND ND ML22.5-5 <0.003 ND

ML12-8 ND ND ML22.5-4 <0.003 0.002

ML12-7 ND ND ML22.5-3 0.003 0.002

ML12-6 ND ND ML22.5-2 ND ND

ML12-5 ND ND ML22.5-1 ND ND

ML12-4 ND ND

ML12-3 ND ND ML23.5-0 0.014 ND

ML12-2 ND ND ML23.5-8 <0.003 ND

ML12-1 FDup ND ND ML23.5-7 <0.003 <0.002

ML12-1 ND ND ML23.5-6 ND ND

ML23.5-5 0.003 0.003

ML13-10 ND 0.001 ML23.5-4 0.003 0.003

ML13-9 ND 0.001 ML23.5-3 FDup 0.004 0.005

ML13-8 ND ND ML23.5-3 0.005 0.005

ML13-7 FDup ND ND ML23.5-2 0.005 0.008

ML13-7 ND 0.001 ML23.5-1 0.006 0.008

ML13-6 ND 0.001

ML13-5 FDup ND 0.001 ML24-7 ND 0.002

ML13-5 ND ND ML24-6 ND 0.002

ML13-4 ND ND ML24-5 FDup ND 0.002

ML13-3 <0.003 0.002 ML24-5 ND 0.003

ML13-2 0.00 0.003 ML24-4 <0.003 0.005

ML13-1 0.01 0.009 ML24-3 0.007 0.009

ML13-0 0.01 0.009 ML24-2 0.008 0.008

ML24-1 0.009 0.011

ML14-10 ND ND

ML14-9 ND ND ML25-7 ND ND

ML14-8 ND ND ML25-6 0.008 0.012

ML14-7(9:15) ND ND ML25-5 0.014 0.012

ML14-7(10:05) ND ND ML25-4 0.014 0.013

ML14-6 ND ND ML25-3 0.009 0.010

ML14-4 ND ND ML25-2 0.008 0.009

ML14-3 <0.003 0.002 ML25-1 0.008 0.011

ML14-2 0.002 0.004

ML14-1 0.005 0.008

ML14-0 0.002 0.005

ML15-10 ND ND

ML15-9 ND ND

ML15-8 ND ND

ML15-7 ND ND

ML15-6 ND ND

ML15-5 ND <0.002

ML15-4 <0.003 0.002

ML15-3 <0.003 0.003

ML15-2 FDup 0.005 0.008

ML15-2 0.005 0.008

ML15-1 0.003 0.007

ML15-0 <0.003 0.004

TABLE C-7. December 1998 Dissolved Gas Results Analyzed at ManTech
101

Monitoring Wells

 Piezometer Ethene Ethane Piezometer Ethene Ethane

(mg/L in liquid) (mg/L in liquid) (mg/L in liquid) (mg/L in liquid)

ML31-10 <0.003 ND MW13 ND ND

ML31-9 ND ND MW18 ND ND

ML31-8 ND ND MW35D ND ND

ML31-7 ND ND MW38 ND ND

ML31-6 ND ND MW46 <0.003 ND

ML31-5 ND ND MW47 0.004 0.007

ML31-4 ND ND MW48 ND ND

ML31-3D ND ND MW49 0.003 0.006

ML31-3 ND ND MW50 <0.003 0.006

ML31-1 ND ND MW52 0.006 0.018

ML31-0 ND ND

ML32-10 ND ND

ML32-9 ND ND Blanks

ML32-8 ND ND

ML32-7 <0.003 ND Piezometer Ethene Ethane

ML32-6 ND ND (mg/L in liquid) (mg/L in liquid)

ML32-5 D ND ND

ML32-5 ND ND Trip Blank(12-1-98) ND ND

ML32-4 ND ND Field Blank(12-3-98) ND ND

ML32-3 ND ND Field Blank(12-4-98) ND ND

ML32-2 ND ND Field Blank(12-5-98) ND ND

ML32-1 ND ND Field Blank(12-6-98) ND ND

ML32-0 ND ND Field Blank(12-9-98) ND ND

Field Blank(12-10-98) ND ND

ML33-10 ND ND ML31-Blank ND ND

ML33-9 ND ND ML32-Blank ND ND

ML33-8 <0.003 ND ML33-Blank ND ND

ML33-7 D ND ND

ML33-7 ND ND

ML33-6 <0.003 ND

ML33-5 0.007 0.005

ML33-4 0.007 0.003 Detection Limit 0.003 0.002

ML33-3 0.008 0.006 FDup represents the Piezometer taken in duplicate

ML33-2 0.008 0.004 ND = not analyzed

ML33-1 0.007 0.008

ML33-0 0.005 0.007

ML34-10 0.002 0.005

ML34-9 0.002 0.004

ML34-8 0.003 0.004

ML34-7 0.005 0.008

ML34-6 0.005 0.008

ML34-5 FDup 0.006 0.009

ML34-5 0.006 0.008

ML34-4 0.006 0.008

ML34-3 0.006 0.007

ML34-2 0.009 0.010

ML34-1 0.004 0.007

ML34-0 <0.003 0.004

ML35-10 ND 0.002

ML35-9 0.001 0.005

ML35-8 0.001 0.005

ML35-6 0.003 0.008

ML35-4 0.007 0.009

ML35-2 0.005 0.006

ML35-1 0.004 0.006

ML35-0 0.003 0.008

TABLE C-7. December 1998 Dissolved Gas Results Analyzed at ManTech
102

Well NOVEMBER 1996 FEBRUARY 1997 JUNE 1997

Point TCE cDCE VC Freon TCE cDCE VC Freon TCE cDCE VC Freon 

31-0 149 6 ND 1.8 53 6 ND 1.8 93 ND ND n/a31-2 135 0 ND 218 50 ND ND 218 23 ND ND n/a31-4 111 ND ND 945 545 ND ND 945 198 ND ND n/a 31-6 352 88 55.7 300 692 54 37 300 663 63 39 n/a 31-8 213 75 28.4 29 84 13 7 29 92 8.6 ND n/a 

31-10 5.4 ND 2.8 ND 6 ND ND ND 3.8 ND ND n/a 

32-0 188 ND ND 76 74 10 ND ND 92 ND ND n/a 32-2 74 ND ND 573 644 ND ND 193 7 ND ND n/a 32-4 482 63 18.3 561 6.1 68 27 86 396 2.5 3.9 n/a 32-6 46 ND 4.5 49 7 ND 6 0.3 11 ND ND n/a 32-8 2.6 ND ND ND 2.1 ND ND ND 1.1 ND ND n/a 

32-10 ND ND ND ND 3.1 0.3 ND n/a 

33-0 1 ND ND 21 ND ND ND 0.6 ND ND ND n/a 33-2 20 ND 1.2 262 2.8 20 20 0.7 2.7 ND 16 n/a 33-4 9.8 ND 2.3 124 ND ND ND ND ND ND ND n/a 33-6 2.7 ND ND 5.6 1.4 ND ND ND ND ND ND n/a 33-8 7.8 ND ND 0 0 ND ND ND 1 0.5 ND n/a 

33-10 8.4 ND ND 9.4 2.9 ND ND ND ND ND ND n/a 

34-0 ND ND ND 5.6 ND ND ND ND ND ND ND n/a 34-2 5.3 28 3.1 156 6.5 20 ND 11 0.3 2.6 ND n/a 34-4 ND ND ND 4.5 ND ND ND 5 ND ND ND n/a 34-6 ND ND ND ND ND ND ND 3.1 ND ND ND n/a 34-8 1.1 ND ND ND ND ND ND n/a 

34-10 1.8 ND ND ND ND ND ND 0.5 ND ND ND n/a 

35-0 3.7 ND ND 4.2 20 ND ND 0 2.4 ND ND n/a 35-2 1.1 ND ND 42 0 ND ND 7.3 ND ND ND n/a 35-4 ND ND ND 8.3 2.6 31 ND 103 1.1 5.2 ND n/a 35-6 1.7 ND ND 2.1 1 ND ND ND ND ND ND n/a 35-8 2.6 ND 2.6 ND ND ND ND ND ND ND ND n/a 

35-10 ND ND ND ND ND ND ND ND ND ND ND n/a 

ND = Non-Detect = <1 μg/L

n/a = not analysed

TABLE C-8. Chlorinated Organics Analyzed at the University of Waterloo (μg/L)
103

Appendix D Lab Analysis Results (Metals)

Well Na K Ca Mg Fe Mn Co Mo Al As Se Cd Be 

11.0 29.4 0.82 19.1 11 0.0045 0.239 <0.0094 <0.0040 <0.098 <0.025 <0.031 <0.0015 <0.0009

11.1 55.5 0.91 18.5 11.3 <0.0029 0.211 <0.0094 <0.0040 <0.098 <0.025 <0.031 <0.0015 <0.0009

11.2 65.6 <0.68 11.7 7.56 <0.0028 0.196 <0.0094 <0.0040 <0.098 <0.025 <0.031 <0.0015 <0.0009

11.3 101 <0.68 10.7 8.12 <0.0028 0.214 <0.0094 <0.0040 <0.098 <0.025 <0.031 <0.0015 <0.0009

11.4 120 1.41 16.1 10.3 <0.0029 0.379 <0.0094 <0.0040 <0.098 <0.025 <0.031 <0.0015 <0.0009

11.5 38.2 5.76 32.1 16.7 <0.0030 2.65 <0.0094 <0.0040 <0.098 <0.025 <0.031 <0.0015 <0.0009

11.6 40.3 6.69 32.6 14.7 0.046 3.33 <0.0094 <0.0040 <0.098 <0.025 <0.031 <0.0015 <0.0009

11.7 25.1 5.81 39.9 11 0.0074 2.72 <0.0094 <0.0040 <0.098 <0.025 <0.031 <0.0015 <0.0009

11.8 20.2 4.88 29 11.5 0.145 1.42 <0.0094 <0.0040 <0.098 <0.025 <0.031 <0.0015 <0.0009

11.9 16.7 4.78 29.8 8.98 0.175 1.09 <0.0094 <0.0040 <0.098 <0.025 <0.031 <0.0015 <0.0009

11.10 22.1 5.53 21.5 6.76 0.015 0.617 <0.0094 <0.0040 <0.098 <0.025 <0.031 <0.0015 <0.0009

12.1 68.9 <2.2 10.4 6.67 <0.012 0.145 <0.0078 <0.034 <0.050 <0.031 <0.036 <0.0027 <0.0035

12.2 94.8 2.2 8.69 6.55 0.038 0.221 <0.0078 <0.034 <0.050 <0.031 <0.036 <0.0027 <0.0035

12.3 111 1.73 15.5 10.6 <0.0029 0.409 <0.0094 <0.0040 <0.098 <0.025 <0.031 <0.0015 <0.0009

12.4 76.9 3 23.3 11.4 0.559 1.05 <0.0078 <0.034 <0.050 <0.031 <0.036 <0.0027 <0.0035

12.5 24.8 5.6 30.3 5.54 15.5 0.807 <0.0078 <0.034 <0.050 0.043 <0.039 <0.0027 <0.0035

12.6 20.2 4.56 13 3.22 9.43 0.177 <0.0094 <0.0040 0.691 <0.025 <0.032 <0.0015 <0.0009

12.7 19 4.96 10.3 3.07 5.49 0.0608 <0.0094 0.0071 4.83 <0.025 <0.031 0.0004 <0.0009

12.8 17.7 5.41 11.9 3.91 0.86 0.0251 <0.0094 0.0071 0.121 <0.025 <0.031 <0.0015 <0.0009

12.9 14.6 4.93 8.78 3.51 1.11 0.0478 <0.0094 <0.0040 1.19 <0.025 <0.031 <0.0015 <0.0009

12.10 14.7 4.17 6.45 2.12 0.0287 0.0066 <0.0094 0.0075 <0.098 <0.025 <0.031 <0.0015 <0.0009

13.0 59.4 <2.2 7.52 8.11 0.742 0.0755 <0.0078 <0.034 <0.050 <0.031 <0.036 <0.0027 <0.0035

13.1 123 <2.2 4.66 11.4 0.299 0.0768 <0.0078 <0.034 <0.050 <0.031 <0.036 <0.0027 <0.0035

13.2 60.4 3.3 5.56 6.75 0.042 0.0702 <0.0078 <0.034 <0.050 <0.031 <0.036 <0.0027 <0.0035

13.3 14.1 <2.2 4.9 0.34 <0.012 0.017 <0.0078 <0.034 <0.050 <0.031 <0.036 <0.0027 <0.0035

13.4 18.9 <2.2 4.6 0.23 <0.012 0.0058 <0.0078 <0.034 <0.050 <0.031 <0.036 <0.0027 0.0105

13.5 22.2 3.9 5.17 1.78 <0.012 0.0163 <0.0078 <0.034 <0.050 <0.031 <0.036 <0.0027 <0.0035

13.6 18 <2.2 4.09 0.64 <0.012 0.0045 <0.0078 <0.034 <0.050 <0.031 <0.036 <0.0027 <0.0035

13.7 9.03 1.9 3.55 0.1 0.0061 0.0068 <0.0094 0.0075 <0.098 <0.025 <0.031 <0.0015 <0.0009

13.8 8.78 <2.2 1.98 <0.14 <0.012 <0.0043 <0.0078 <0.034 <0.050 <0.031 <0.036 <0.0027 <0.0035

13.9 7.08 1.76 1.52 0.1 0.0061 <0.0037 <0.0094 <0.0040 <0.098 <0.025 <0.031 <0.0015 <0.0009

13.10 8.67 <2.2 1.94 <0.14 <0.012 0.0059 <0.0078 <0.034 <0.050 <0.031 <0.036 <0.0027 <0.0035

14.0 8.98 <2.2 2.5 <0.14 <0.012 <0.0043 <0.0078 <0.034 0.059 <0.031 <0.036 <0.0027 <0.0035

14.1 75 <2.2 4.33 2.35 0.311 0.0202 <0.0078 <0.034 0.212 <0.031 <0.036 <0.0027 <0.0035

14.2 71.3 <2.2 4.23 2.1 <0.012 0.0137 <0.0078 <0.034 <0.050 <0.031 <0.036 <0.0027 <0.0035

14.3 15.6 <2.2 2.15 <0.14 0.25 0.0058 <0.0078 <0.034 0.222 <0.031 <0.036 <0.0027 <0.0035

14.4 15.7 <2.2 2.24 <0.14 <0.012 0.0059 <0.0078 <0.034 <0.050 <0.031 <0.036 <0.0027 0.009

14.5 14 <2.2 1.69 <0.14 <0.012 0.0046 <0.0078 <0.034 <0.050 <0.031 <0.036 <0.0027 <0.0035

14.6 12.9 <2.2 1.69 <0.14 <0.012 <0.0043 <0.0078 <0.034 <0.050 <0.031 <0.036 <0.0027 <0.0035

14.7 11.9 <2.2 1.4 <0.14 <0.012 <0.0043 <0.0078 <0.034 0.059 <0.031 <0.036 <0.0027 <0.0035

14.8 9.97 <2.2 1.82 <0.14 <0.012 0.0059 <0.0078 <0.034 <0.050 <0.031 <0.036 <0.0027 <0.0035

14.9 8.91 <2.2 1.8 <0.14 <0.012 0.0001 <0.0078 <0.034 <0.050 <0.031 <0.036 <0.0027 <0.0035

14.10 7.71 <2.2 3.92 1.25 4.81 0.0753 <0.0078 <0.034 8.6 <0.032 <0.036 <0.0027 <0.0035

15.0 39.3 <2.2 8.89 5.22 0.123 0.159 <0.0078 <0.034 0.086 <0.031 <0.036 <0.0027 <0.0035

15.1 67.7 <2.2 2.93 1.54 0.845 0.251 <0.0078 <0.034 0.193 <0.031 <0.036 <0.0027 <0.0035

15.2 120 <2.2 3.25 1.3 0.26 0.104 <0.0078 <0.034 0.222 <0.031 <0.036 <0.0027 <0.0035

TABLE D-1. November 1996 Metal Concentrations Analyzed at ManTech

0.45 μm filtered samples, all concentrations in mg/L
104

15.3 120 <2.2 3.26 1.29 0.026 0.107 <0.0078 <0.034 <0.050 <0.031 <0.036 <0.0027 <0.0035

15.4 27.9 <2.2 0.46 0.27 0.174 0.0679 <0.0078 <0.034 0.107 <0.031 <0.036 <0.0027 <0.0035

15.5 15.9 <2.2 3.76 1.96 0.219 0.301 <0.0078 <0.034 0.087 <0.031 <0.036 <0.0027 <0.0035

15.6 20.4 2.7 10.5 3.03 2.22 0.447 <0.0078 <0.034 0.24 <0.031 <0.036 <0.0027 <0.0035

15.7 20.4 3.1 10.4 3.02 2.01 0.435 <0.0078 <0.034 <0.050 <0.031 <0.036 <0.0027 <0.0035

15.8 42.9 5.6 23.5 5.74 1.96 0.688 <0.0078 <0.034 <0.050 <0.031 <0.036 <0.0027 <0.0035

15.9 31.7 4.8 17.2 3.96 1.65 0.509 <0.0078 <0.034 2.79 <0.031 <0.036 <0.0027 <0.0035

15.10 8.72 7.4 7.82 2.38 5.33 0.197 <0.0078 <0.034 9.63 <0.032 <0.036 <0.0027 <0.0035

21.1 20.6 <1.6 11.1 6.54 0 0.097 <0.0077 <0.032 <0.055 0 <0.032 <0.0020 <0.0034

21.2 35.3 1.7 8.91 5.01 <0.012 0.0864 <0.0077 <0.032 <0.055 <0.014 <0.032 <0.0020 <0.0034

21.3 50.4 <1.6 7.87 4.39 <0.012 0.119 0.0079 <0.032 <0.055 <0.014 <0.032 <0.0020 <0.0034

21.4 83.6 1.9 15.7 10.2 <0.012 0.327 0.0103 <0.032 <0.055 <0.014 <0.032 <0.0020 <0.0034

21.5 138 2.6 21.3 14.5 <0.012 0.432 0.0141 <0.032 <0.055 <0.014 <0.032 <0.0020 <0.0034

21.6 40.8 4.9 27.5 15.5 <0.012 1.16 0.0002 <0.032 <0.055 <0.014 <0.032 <0.0020 <0.0034

21.7 18.2 5.8 21.9 10.6 0.482 2.4 0.0174 <0.032 <0.055 <0.014 <0.032 <0.0020 <0.0034

22.1 43.8 <1.6 6.57 3.82 0.021 0.11 <0.0077 <0.032 <0.055 <0.014 <0.032 <0.0020 <0.0034

22.2 53 2.1 6.55 0.65 0.023 <0.0051 <0.0077 <0.032 0.679 <0.014 <0.032 <0.0020 <0.0034

22.2a 44.8 <1.6 6.65 3.95 0.014 0.117 <0.0077 <0.032 <0.055 <0.014 <0.032 <0.0020 <0.0034

22.3 103 2.6 4.46 14.3 0.014 0.0645 0.0009 <0.032 <0.055 <0.014 <0.032 <0.0020 <0.0034

22.4 20.1 1.8 4.39 0.17 0.02 <0.0051 <0.0077 <0.032 <0.055 <0.014 <0.032 <0.0020 <0.0034

23.1 45.5 2.2 6.69 3.61 0.019 0.13 <0.0077 <0.032 <0.055 <0.014 <0.032 <0.0020 <0.0034

23.2 72.6 2.5 8.9 8.19 0.018 0.0758 <0.0077 <0.032 <0.055 <0.014 <0.032 <0.0020 <0.0034

23.3 104 0.9 7.12 16.4 <0.012 0.104 <0.0077 <0.032 <0.055 <0.014 <0.032 <0.0020 0.0113

23.5 11.2 <1.6 3.61 <0.11 <0.012 0.0207 <0.0077 <0.032 <0.055 <0.014 <0.032 <0.0020 <0.0034

24.1 58.8 <1.6 6.32 5.72 <0.012 0.057 <0.0077 <0.032 <0.055 <0.014 <0.032 <0.0020 <0.0034

24.2 78 <1.6 5.19 1.32 <0.012 0.0168 <0.0077 <0.032 <0.055 <0.014 <0.032 <0.0020 <0.0034

24.3 107 1.6 5.11 10.7 <0.012 0.0368 <0.0077 <0.032 <0.055 <0.014 <0.032 <0.0020 <0.0034

24.4 22.9 <1.6 5 <0.11 <0.012 <0.0051 <0.0077 <0.032 <0.055 <0.014 <0.032 <0.0020 <0.0034

24.5 12.6 2.04 2.75 0.1 0.0035 0.0054 <0.0094 <0.0040 <0.098 <0.025 <0.031 <0.0015 <0.0009

24.6 11.6 <1.6 1.98 <0.11 0.013 <0.0051 <0.0077 <0.032 0.088 <0.014 0.045 <0.0020 <0.0034

24.7 12 <1.6 2.2 0.18 <0.012 <0.0051 <0.0077 <0.032 <0.055 <0.014 <0.032 <0.0020 <0.0034

25.1 8.61 <1.6 8.83 0.93 <0.012 0.0444 <0.0077 <0.032 <0.055 <0.014 <0.032 <0.0020 <0.0034

25.2 17.4 <1.6 9.82 0.99 0.012 0.0419 <0.0077 <0.032 0.059 <0.014 <0.032 <0.0020 <0.0034

25.3 84.8 <1.6 2.01 0.41 0.013 0.0106 <0.0077 <0.032 0.134 <0.014 <0.032 <0.0020 <0.0034

25.4 26.9 10.3 0.8 0.62 <0.012 0.0119 <0.0077 <0.032 <0.055 <0.014 <0.032 <0.0020 <0.0034

25.5 98 <1.6 5.87 1.65 <0.012 0.142 <0.0077 <0.032 <0.055 0.028 0.033 <0.0020 <0.0034

25.6 42 2.4 7.44 2.35 <0.012 0.332 <0.0077 <0.032 <0.055 <0.014 <0.032 <0.0020 <0.0034

25.7 7.76 2.7 6.96 1.96 0.025 0.368 <0.0077 <0.032 <0.055 0.018 0.04 <0.0020 <0.0034

31.0 17.7 1.5 8.67 5.19 <0.010 0.0452 <0.0065 <0.012 <0.029 <0.010 <0.021 <0.0018 <0.0013

31.1 26.8 <1.3 10.2 5.96 <0.010 0.0488 <0.0065 <0.012 <0.029 0.015 <0.021 <0.0018 <0.0013

31.2 31.4 1.7 9.09 5.45 <0.010 0.0796 <0.0065 <0.012 <0.029 <0.010 <0.021 <0.0018 <0.0013

31.3 33.1 <1.3 7.98 4.84 <0.010 0.103 <0.0065 <0.012 <0.029 <0.010 <0.021 <0.0018 <0.0013

31.4 42.8 1.6 9.87 6.21 <0.010 0.127 <0.0065 <0.012 <0.029 <0.010 <0.021 <0.0018 <0.0013

31.5 63.3 3.5 20.1 11.9 <0.010 0.858 0.0082 <0.012 <0.029 <0.010 <0.021 <0.0018 <0.0014

31.6 34.7 6.6 27.2 16.3 <0.010 0.734 <0.0065 <0.012 <0.029 <0.010 <0.021 <0.0018 <0.0014

31.7 31.6 7 28.2 13 <0.010 0.718 <0.0065 <0.012 <0.029 <0.010 <0.021 <0.0018 <0.0014

TABLE D-1. November 1996 Metal Concentrations Analyzed at ManTech

0.45 μm filtered samples, all concentrations in mg/L

Well Cu Cr Ni Zn Ag Tl Pb Sr V Ba B Ti 
105

31.8 23 6.3 24 10.5 <0.010 0.515 <0.0065 <0.012 <0.029 0.01 <0.021 <0.0018 <0.0014

31.9 12.3 4.8 24.6 6.73 <0.010 0.311 0.0093 <0.012 <0.029 <0.010 <0.021 <0.0018 <0.0014

31.10 14.7 5 26.6 7.29 <0.010 0.223 <0.0065 <0.012 <0.029 <0.010 <0.021 <0.0018 <0.0014

32.0 20.6 <1.3 9.49 5.79 0.289 0.062 <0.0065 <0.012 <0.029 <0.010 <0.021 <0.0018 <0.0013

32.1 29.8 1.6 12.2 7.04 0.015 0.0911 0.008 <0.012 <0.029 <0.010 <0.021 <0.0018 <0.0014

32.2 40.7 1.5 9.42 5.78 <0.010 0.133 <0.0065 <0.012 <0.029 <0.010 0.023 <0.0018 <0.0013

32.3 69.2 2.1 18.2 12.9 0.076 0.344 0.0104 <0.012 <0.029 <0.010 <0.021 <0.0018 <0.0014

32.4 68.8 4.7 32.7 18.9 0.019 1.04 0.0113 <0.012 <0.029 <0.010 <0.021 <0.0018 <0.0014

32.5 43.4 4.3 27.3 12 1.26 1.02 0.0112 <0.012 <0.029 0.015 <0.021 <0.0018 <0.0014

32.6 8.07 4.1 18 1.91 8.14 0.266 <0.0065 <0.012 <0.029 0.033 <0.022 <0.0018 <0.0014

32.7 7.94 3.6 18.8 1.42 7.95 0.0801 <0.0065 <0.012 <0.029 0.016 <0.022 <0.0018 <0.0014

32.8 7.02 5.1 21.7 1.2 2.11 0.018 <0.0065 <0.012 0.038 0.01 <0.021 <0.0018 <0.0014

32.9 5.04 5.8 13.5 1.09 <0.010 0.0088 <0.0065 <0.012 <0.029 <0.010 <0.021 <0.0018 <0.0014

32.10 12.1 8.1 13.4 1.4 6.23 0.0316 <0.0065 <0.012 12.2 0.019 0.023 <0.0018 <0.0014

33.0 26.6 2.4 5.54 2.17 0.014 0.0095 <0.0065 <0.012 <0.029 <0.010 <0.021 <0.0018 <0.0013

33.1 42 1.9 10.1 6.78 10.6 0.222 <0.0065 <0.012 <0.029 <0.010 <0.024 <0.0018 <0.0013

33.2 56.4 1.9 16 10 16.1 0.392 <0.0065 <0.012 <0.029 0.018 <0.027 <0.0018 <0.0014

33.3 32.5 2.5 15.8 6.7 5.49 0.535 <0.0065 <0.012 <0.029 <0.010 <0.022 <0.0018 <0.0014

33.4 46.1 2.5 20.3 7.25 4.34 0.855 <0.0065 <0.012 <0.029 <0.010 <0.021 <0.0018 <0.0014

33.5 27.6 2.8 25 4.88 0.283 0.241 0.0099 <0.012 0.057 0.024 <0.021 <0.0018 <0.0014

33.6 14.5 2.9 34.3 0.72 <0.010 <0.0063 <0.0065 <0.012 0.278 0.012 <0.021 <0.0018 <0.0014

33.7 6.88 2.8 20.4 1.48 3.19 0.114 <0.0065 <0.012 <0.029 0.013 <0.021 <0.0018 <0.0014

33.8 9.27 2.4 32.5 0.62 0.003 0.0137 <0.0065 <0.012 0.556 0.009 0.001 <0.0018 <0.0014

33.9 16.1 2.3 18.3 2.2 <0.010 0.0589 <0.0065 <0.012 <0.029 <0.010 <0.021 <0.0018 <0.0014

33.10 27.5 10.7 77.1 0.35 <0.010 <0.0063 <0.0065 <0.012 1.65 <0.010 <0.021 <0.0018 <0.0015

34.0 24 2.3 5.11 0.24 <0.010 <0.0063 0.0075 0.016 0.061 <0.010 <0.021 <0.0018 <0.0013

34.1 56.2 2.6 13 8.15 0.047 0.0355 <0.0065 <0.012 <0.029 <0.010 <0.021 <0.0018 <0.0014

34.2 60.6 2.9 14.6 9.71 0.097 0.0764 <0.0065 <0.012 <0.029 <0.010 <0.021 <0.0018 <0.0014

34.3 50.4 3.3 19.2 6.66 0.383 0.152 0.0101 <0.012 <0.029 <0.010 <0.021 <0.0018 <0.0014

34.4 25 2.6 7.64 1.74 0.499 0.123 <0.0065 <0.012 <0.029 <0.010 <0.021 <0.0018 <0.0013

34.5 24.1 2.3 8.7 1.92 0.711 0.169 <0.0065 <0.012 <0.029 <0.010 <0.021 <0.0018 <0.0013

34.6 23.7 2.6 6.46 1.56 0.645 0.145 <0.0065 <0.012 <0.029 <0.010 <0.021 <0.0018 <0.0013

34.7 20.9 1.4 9.43 2.32 1.27 0.25 <0.0065 <0.012 0.413 0 <0.021 <0.0018 <0.0013

34.8 18.7 2.7 9.33 2.01 4.36 0.234 <0.0065 0.013 7.01 <0.010 <0.021 <0.0018 <0.0013

34.9 14.8 1.4 5.2 0.82 1.45 0.116 <0.0065 0.014 1.51 <0.010 <0.021 <0.0018 <0.0013

34.10 15.4 2.3 9.76 1.45 1.52 0.0928 <0.0065 <0.012 3.04 <0.010 <0.021 <0.0018 <0.0013

35.0 20.6 <1.3 7.03 2.89 1.7 0.543 <0.0065 <0.012 <0.029 <0.010 <0.021 <0.0018 <0.0013

35.1 36.1 <1.3 5.37 1.27 0.144 0.0922 <0.0065 <0.012 <0.029 <0.010 <0.021 <0.0018 <0.0013

35.2 39.3 <1.3 6.44 2.42 1.03 0.256 <0.0065 <0.012 <0.029 0.012 <0.021 <0.0018 <0.0013

35.3 56.9 1.3 11.6 6.95 0.31 0.14 0.0074 <0.012 <0.029 0.023 <0.021 <0.0018 <0.0014

35.4 57.4 <1.3 8.43 4.08 0.698 0.455 <0.0065 <0.012 <0.029 <0.010 <0.021 <0.0018 <0.0013

35.5 38.7 3.2 13 5.79 0.436 0.706 <0.0065 <0.012 0.408 <0.010 <0.021 <0.0018 <0.0014

35.6 11.4 2.1 12.4 5.66 0.101 0.778 <0.0065 <0.012 <0.029 <0.010 <0.021 <0.0018 <0.0014

35.7 14.1 2.5 11.5 4.4 0.244 0.739 <0.0065 <0.012 <0.029 <0.010 <0.021 <0.0018 <0.0014

35.8 10.9 2.7 13.9 4.48 0.579 0.811 <0.0065 <0.012 <0.029 0.017 <0.021 <0.0018 <0.0014

35.9 24.6 2.3 4.79 1.03 0.77 0.136 <0.0065 <0.012 0.99 0.02 <0.021 <0.0018 <0.0013

35.10 26.2 2.9 5.98 0.82 0.099 0.0742 <0.0065 <0.012 0.107 0.011 <0.021 <0.0018 <0.0013

TABLE D-1. November 1996 Metal Concentrations Analyzed at ManTech

0.45 μm filtered samples, all concentrations in mg/L

Well Na K Ca Mg Fe Mn Co Mo Al As Se Cd Be 
106

11.0 <0.0036 0.208 <0.014 0.003 <0.0068 0.036 <0.0031 0.258 <0.017 0.0273 <0.036 <0.0041

11.1 <0.0036 1.15 <0.014 0.003 <0.0068 <0.025 <0.0031 0.275 <0.017 0.0349 <0.036 <0.0041

11.2 <0.0036 1.61 <0.014 <0.0013 <0.0068 <0.025 <0.0031 0.18 <0.017 0.0274 <0.036 <0.0041

11.3 <0.0036 2.92 <0.014 <0.0013 <0.0068 0.027 <0.0032 0.186 <0.017 0.0344 <0.036 <0.0041

11.4 <0.0036 3.08 <0.014 <0.0013 <0.0068 <0.025 <0.0032 0.278 <0.017 0.0509 <0.036 <0.0041

11.5 <0.0036 0.106 <0.014 0.0019 <0.0068 <0.025 <0.0031 0.532 <0.017 0.0717 <0.036 <0.0041

11.6 <0.0036 0.1008 <0.014 0.0021 <0.0068 <0.025 <0.0031 0.533 <0.017 0.0722 <0.036 <0.0041

11.7 <0.0036 <0.0012 <0.014 <0.0013 <0.0068 <0.025 <0.0031 0.435 <0.017 0.0468 <0.036 <0.0041

11.8 <0.0036 <0.0012 <0.014 <0.0013 <0.0068 <0.025 <0.0031 0.37 <0.017 0.0285 <0.036 <0.0041

11.9 <0.0036 0.0019 <0.014 <0.0013 <0.0068 <0.025 <0.0031 0.335 <0.017 0.0244 <0.036 <0.0041

11.10 <0.0036 0.0014 <0.014 <0.0013 <0.0068 0.03 <0.0031 0.254 <0.017 0.0211 <0.036 <0.0041

12.1 <0.0047 1.89 <0.013 <0.0014 <0.0063 <0.014 <0.021 0.156 <0.010 0.0252 <0.029 <0.016

12.2 <0.0047 3.22 <0.013 0.0083 <0.0063 <0.014 <0.021 0.143 <0.010 0.0265 <0.030 <0.016

12.3 <0.0036 2.14 <0.014 <0.0013 <0.0068 0.027 <0.0031 0.277 <0.017 0.0507 <0.036 <0.0041

12.4 <0.0047 0.894 <0.013 <0.0014 <0.0063 <0.014 <0.021 0.347 <0.010 0.0494 <0.029 <0.016

12.5 <0.0047 0.0034 <0.013 <0.0014 <0.0063 <0.014 <0.021 0.263 <0.010 0.0372 <0.030 <0.016

12.6 <0.0036 <0.0012 <0.014 0.002 <0.0068 <0.025 <0.0031 0.129 <0.017 0.0117 <0.036 0.0168

12.7 <0.0036 0.0088 <0.014 0.0049 <0.0068 0.006 0.0031 0.102 <0.017 0.0176 <0.036 0.113

12.8 <0.0036 0.0044 <0.014 <0.0013 <0.0068 0.028 0.0069 0.117 <0.017 0.0057 <0.036 <0.0041

12.9 <0.0036 <0.0012 <0.014 <0.0013 <0.0068 <0.025 <0.0031 0.0875 <0.017 0.0075 <0.036 0.0338

12.10 <0.0036 <0.0012 <0.014 <0.0013 <0.0068 <0.025 <0.0031 0.0575 <0.017 0.0033 <0.036 <0.0041

13.0 <0.0047 <0.0029 <0.013 <0.0014 <0.0063 <0.014 <0.021 0.099 <0.010 0.0098 <0.029 <0.016

13.1 <0.0047 <0.0029 <0.013 <0.0014 <0.0063 <0.014 <0.021 0.0551 <0.010 0.0096 <0.029 <0.016

13.2 <0.0047 <0.0029 <0.013 <0.0014 <0.0063 <0.014 <0.021 0.0565 <0.010 0.0154 0.055 <0.016

13.3 <0.0047 <0.0029 <0.013 <0.0014 <0.0063 <0.014 <0.021 0.0502 <0.010 0.0366 0.118 <0.016

13.4 0.0105 <0.0029 <0.013 0.0162 <0.0063 <0.014 <0.021 0.0584 <0.010 0.0298 0.081 <0.016

13.5 <0.0047 <0.0029 <0.013 <0.0014 <0.0063 <0.014 <0.021 0.0537 <0.010 0.0041 0.044 <0.016

13.6 <0.0047 <0.0029 <0.013 <0.0014 <0.0063 <0.014 <0.021 0.0408 <0.010 0.0053 0.067 <0.016

13.7 <0.0036 <0.0012 <0.014 <0.0013 <0.0068 <0.025 <0.0031 0.0348 <0.017 0.0137 0.107 <0.0041

13.8 <0.0047 <0.0029 <0.013 <0.0014 <0.0063 <0.014 <0.021 0.0163 <0.010 0.0124 0.15 <0.016

13.9 <0.0036 <0.0012 <0.014 <0.0013 <0.0068 <0.025 <0.0031 0.0085 <0.017 <0.0022 0.178 <0.0041

13.10 <0.0047 <0.0029 <0.013 <0.0014 <0.0063 <0.014 <0.021 0.0158 <0.010 0.0126 0.143 <0.016

14.0 <0.0047 <0.0029 <0.013 <0.0014 <0.0063 <0.014 <0.021 0.0108 <0.010 <0.0020 0.066 <0.016

14.1 <0.0047 <0.0029 <0.013 <0.0014 <0.0063 <0.014 <0.021 0.0375 <0.010 0.0039 0.047 <0.016

14.2 <0.0047 <0.0029 <0.013 <0.0014 <0.0063 <0.014 <0.021 0.0363 <0.010 0.0032 0.066 <0.016

14.3 <0.0047 <0.0029 <0.013 <0.0014 <0.0063 <0.014 <0.021 0.0086 <0.010 <0.0020 0.134 <0.016

14.4 0.0069 <0.0029 <0.013 0.0032 <0.0063 <0.014 <0.021 0.0084 <0.010 <0.0020 0.133 <0.016

14.5 <0.0047 <0.0029 <0.013 <0.0014 <0.0063 <0.014 <0.021 0.0053 <0.010 <0.0020 0.147 <0.016

14.6 <0.0047 <0.0029 <0.013 <0.0014 <0.0063 <0.014 <0.021 0.0049 <0.010 <0.0020 0.13 <0.016

14.7 <0.0047 <0.0029 <0.013 <0.0014 <0.0063 <0.014 <0.021 0.0047 <0.010 <0.0020 0.13 <0.016

14.8 <0.0047 <0.0029 <0.013 <0.0014 <0.0063 <0.014 <0.021 0.0061 <0.010 <0.0020 0.128 <0.016

14.9 <0.0047 <0.0029 <0.013 <0.0014 <0.0063 <0.014 <0.021 0.0059 <0.010 <0.0020 0.115 <0.016

14.10 <0.0047 0.0171 <0.013 0.0103 <0.0063 <0.014 <0.021 0.0262 0.017 0.0274 0.054 0.136

15.0 <0.0047 <0.0029 0.03 0.0378 <0.0063 <0.014 0.026 0.113 <0.010 0.0138 0.057 <0.016

15.1 <0.0047 <0.0029 <0.013 <0.0014 <0.0063 <0.014 <0.021 0.0388 <0.010 0.0051 0.108 <0.016

15.2 <0.0047 <0.0029 <0.013 <0.0014 <0.0063 <0.014 <0.021 0.0359 <0.010 0.0061 <0.029 <0.016

TABLE D-1. November 1996 Metal Concentrations Analyzed at ManTech

0.45 μm filtered samples, all concentrations in mg/L

Well Cu Cr Ni Zn Ag Tl Pb Sr V Ba B Ti 
107

15.3 <0.0047 <0.0029 <0.013 <0.0014 <0.0063 <0.014 <0.021 0.0363 <0.010 0.0055 <0.029 <0.016

15.4 <0.0047 <0.0029 <0.013 <0.0014 <0.0063 <0.014 <0.021 0.0067 <0.010 <0.0020 0.133 <0.016

15.5 <0.0047 <0.0029 <0.013 0.0102 <0.0063 <0.014 <0.021 0.0461 <0.010 0.0053 0.085 <0.016

15.6 <0.0047 <0.0029 <0.013 <0.0014 <0.0063 <0.014 <0.021 0.099 <0.010 0.0143 0.048 <0.016

15.7 <0.0047 <0.0029 <0.013 <0.0014 <0.0063 <0.014 <0.021 0.0981 <0.010 0.0133 0.06 <0.016

15.8 <0.0047 <0.0029 <0.013 <0.0014 <0.0063 <0.014 <0.021 0.241 <0.010 0.0267 <0.029 <0.016

15.9 <0.0047 0.0068 <0.013 <0.0014 <0.0063 <0.014 <0.021 0.195 <0.010 0.0271 <0.029 0.062

15.10 <0.0047 0.0363 <0.013 0.0115 <0.0063 <0.014 <0.021 0.094 0.013 0.0503 <0.030 0.147

21.1 <0.019 <0.0031 <0.010 0.0066 <0.015 <0.030 <0.036 0.143 <0.033 0.013 <0.037 <0.021

21.2 <0.019 1.05 <0.010 <0.0026 <0.015 <0.030 <0.036 0.118 <0.033 0.0148 <0.037 <0.021

21.3 <0.019 1.93 <0.010 <0.0026 <0.015 <0.030 <0.036 0.105 <0.033 0.0159 <0.037 <0.021

21.4 <0.019 2.47 <0.010 <0.0026 <0.015 <0.030 <0.036 0.241 <0.033 0.0406 <0.037 <0.021

21.5 <0.019 5.11 <0.010 0.0048 <0.015 <0.030 <0.036 0.364 <0.033 0.085 <0.037 <0.021

21.6 <0.019 0.464 <0.010 <0.0026 <0.015 <0.030 <0.036 0.417 <0.033 0.0533 <0.037 <0.021

21.7 <0.019 <0.0031 <0.010 <0.0026 <0.015 <0.030 <0.036 0.314 <0.033 0.0395 <0.037 <0.021

22.1 <0.019 1.53 <0.010 <0.0026 <0.015 <0.030 <0.036 0.0925 <0.033 0.0146 <0.037 <0.021

22.2 <0.019 <0.0031 <0.010 <0.0026 <0.015 <0.030 <0.036 0.0839 <0.033 <0.0067 0.072 <0.021

22.2a <0.019 1.56 <0.010 <0.0026 <0.015 <0.030 <0.036 0.0949 <0.033 0.0157 <0.037 <0.021

22.3 <0.019 <0.0031 <0.010 <0.0026 <0.015 <0.030 <0.036 0.0332 <0.033 <0.0067 <0.037 <0.021

22.4 <0.019 <0.0031 <0.010 <0.0026 <0.015 <0.030 <0.036 0.0209 <0.033 <0.0067 0.097 <0.021

23.1 <0.019 <0.0031 <0.010 <0.0026 <0.015 <0.030 <0.036 0.0853 <0.033 <0.0067 <0.037 <0.021

23.2 <0.019 <0.0031 <0.010 <0.0026 <0.015 <0.030 <0.036 0.116 <0.033 0.0087 <0.037 <0.021

23.3 0.001 0.0027 0.007 0.0024 <0.015 0.002 <0.036 0.0788 <0.033 <0.0067 <0.037 <0.021

23.5 <0.019 <0.0031 <0.010 <0.0026 <0.015 <0.030 <0.036 0.0589 <0.033 0.0475 0.107 <0.021

24.1 <0.019 <0.0031 <0.010 <0.0026 <0.015 <0.030 <0.036 0.0731 <0.033 0.0099 <0.037 <0.021

24.2 <0.019 <0.0031 <0.010 <0.0026 <0.015 <0.030 <0.036 0.0437 <0.033 <0.0067 <0.037 <0.021

24.3 <0.019 <0.0031 <0.010 <0.0026 <0.015 <0.030 <0.036 0.0416 <0.033 <0.0067 <0.037 <0.021

24.4 <0.019 <0.0031 <0.010 <0.0026 <0.015 <0.030 <0.036 0.0203 <0.033 <0.0067 0.099 <0.021

24.5 <0.0036 <0.0012 <0.014 <0.0013 <0.0068 <0.025 <0.0031 0.0126 <0.017 <0.0022 0.108 <0.0041

24.6 <0.019 <0.0031 <0.010 <0.0026 <0.015 <0.030 <0.036 0.0105 <0.033 <0.0067 0.139 <0.021

24.7 <0.019 <0.0031 <0.010 <0.0026 <0.015 <0.030 <0.036 0.0093 <0.033 <0.0067 0.13 <0.021

25.1 <0.019 <0.0031 <0.010 <0.0026 <0.015 <0.030 <0.036 0.0605 <0.033 <0.0067 <0.037 <0.021

25.2 <0.019 <0.0031 <0.010 <0.0026 <0.015 <0.030 <0.036 0.0705 <0.033 <0.0067 <0.037 <0.021

25.3 <0.019 <0.0031 <0.010 <0.0026 <0.015 <0.030 <0.036 0.0169 <0.033 <0.0067 <0.037 <0.021

25.4 <0.019 <0.0031 <0.010 <0.0026 <0.015 <0.030 <0.036 0.006 <0.033 <0.0067 <0.037 0.035

25.5 <0.019 <0.0031 <0.010 <0.0026 <0.015 <0.030 <0.036 0.055 <0.033 0.0081 <0.037 <0.021

25.6 <0.019 <0.0031 <0.010 <0.0026 <0.015 <0.030 <0.036 0.0813 <0.033 0.012 <0.037 <0.021

25.7 <0.019 <0.0031 <0.010 <0.0026 <0.015 <0.030 <0.036 0.067 <0.033 0.0067 <0.037 <0.021

31.0 <0.0047 <0.0025 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.108 <0.0092 0.0092 <0.038 <0.0084

31.1 <0.0047 0.0277 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.14 <0.0092 0.0154 <0.038 <0.0084

31.2 <0.0047 0.0756 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.128 <0.0092 0.0176 <0.038 <0.0084

31.3 <0.0047 0.215 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.113 <0.0092 0.0158 0.044 <0.0084

31.4 <0.0047 0.354 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.144 <0.0092 0.0222 <0.038 <0.0084

31.5 <0.0047 0.043 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.302 <0.0092 0.0533 <0.038 <0.0084

31.6 <0.0047 0.0048 <0.011 0.0016 <0.0079 <0.038 <0.024 0.411 <0.0092 0.0602 <0.038 <0.0084

31.7 <0.0047 <0.0025 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.387 <0.0092 0.0461 <0.038 <0.0084

TABLE D-1. November 1996 Metal Concentrations Analyzed at ManTech

0.45 μm filtered samples, all concentrations in mg/L

Well Na K Ca Mg Fe Mn Co Mo Al As Se Cd Be 
108

31.8 <0.0047 <0.0025 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.322 <0.0092 0.0334 <0.038 <0.0084

31.9 <0.0047 <0.0025 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.312 <0.0092 0.0196 <0.038 <0.0084

31.10 <0.0047 <0.0025 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.348 <0.0092 0.0201 <0.038 <0.0084

32.0 <0.0047 <0.0025 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.12 <0.0092 0.0077 <0.038 <0.0084

32.1 <0.0047 0.0089 <0.011 0.0015 <0.0079 <0.038 <0.024 0.169 <0.0092 0.0186 <0.038 <0.0084

32.2 <0.0047 0.341 <0.011 0.0024 <0.0079 <0.038 <0.024 0.134 <0.0092 0.0213 <0.038 <0.0084

32.3 <0.0047 0.329 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.295 <0.0092 0.0541 <0.038 <0.0084

32.4 <0.0047 0.045 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.476 <0.0092 0.0798 <0.038 <0.0084

32.5 <0.0047 <0.0025 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.349 <0.0092 0.0417 <0.038 <0.0084

32.6 <0.0047 0.0034 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.217 <0.0092 0.0121 <0.038 <0.0084

32.7 <0.0047 <0.0025 <0.011 0.0067 <0.0079 <0.038 <0.024 0.242 <0.0092 0.01 <0.038 <0.0084

32.8 <0.0047 <0.0025 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.215 0.0097 0.0128 <0.038 <0.0084

32.9 <0.0047 <0.0025 <0.011 0.0005 <0.0079 <0.038 <0.024 0.101 <0.0092 0.0063 <0.038 <0.0084

32.10 <0.0047 0.017 <0.011 0.0138 <0.0079 <0.039 <0.024 0.127 0.0145 0.0385 <0.038 0.371

33.0 <0.0047 <0.0025 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.0755 <0.0092 0.0033 0.045 <0.0084

33.1 <0.0047 0.0029 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.147 <0.0092 0.0063 <0.038 <0.0084

33.2 <0.0047 <0.0025 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.234 <0.0092 0.0118 <0.038 <0.0084

33.3 <0.0047 <0.0025 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.171 <0.0092 0.0072 <0.038 <0.0084

33.4 <0.0047 <0.0025 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.23 <0.0092 0.0072 <0.038 <0.0084

33.5 <0.0047 <0.0025 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.246 <0.0092 0.0041 <0.038 <0.0084

33.6 0.0053 0.0028 <0.011 0.0055 <0.0079 <0.038 <0.024 0.268 0.01 0.0022 <0.038 <0.0084

33.7 0.0108 <0.0025 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.2 <0.0092 0.0058 <0.038 <0.0084

33.8 <0.0047 <0.0025 <0.011 0.0026 <0.0079 <0.038 <0.024 0.24 0.0004 0.0003 <0.038 <0.0084

33.9 <0.0047 <0.0025 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.16 <0.0092 0.0031 <0.038 <0.0084

33.10 <0.0047 <0.0025 <0.011 <0.0014 <0.0079 <0.038 <0.024 3.48 <0.0092 0.0189 <0.038 <0.0084

34.0 <0.0047 <0.0025 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.0534 <0.0092 0.002 0.083 <0.0084

34.1 <0.0047 <0.0025 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.145 <0.0092 0.0039 <0.038 <0.0084

34.2 <0.0047 <0.0025 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.167 <0.0092 0.006 <0.038 <0.0084

34.3 <0.0047 <0.0025 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.152 <0.0092 0.0063 0.058 <0.0084

34.4 <0.0047 <0.0025 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.0621 <0.0092 0.0028 0.133 <0.0084

34.5 <0.0047 <0.0025 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.07 <0.0092 0.0021 0.124 <0.0084

34.6 <0.0047 <0.0025 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.0544 <0.0092 0.0021 0.108 <0.0084

34.7 <0.0047 <0.0025 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.077 <0.0092 0.0031 0.008 <0.0084

34.8 <0.0047 0.0094 <0.011 0.0106 <0.0079 <0.038 <0.024 0.0798 0.0176 0.0224 0.056 0.204

34.9 <0.0047 <0.0025 <0.011 0.003 <0.0079 <0.038 <0.024 0.0486 <0.0092 0.0053 <0.038 0.0472

34.10 <0.0047 0.0061 <0.011 0.0038 <0.0079 <0.038 <0.024 0.0815 <0.0092 0.0112 <0.038 0.0778

35.0 <0.0047 <0.0025 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.0639 <0.0092 0.0029 <0.038 <0.0084

35.1 <0.0047 <0.0025 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.0311 <0.0092 <0.0019 <0.038 <0.0084

35.2 <0.0047 <0.0025 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.0619 <0.0092 <0.0019 <0.038 <0.0084

35.3 <0.0047 <0.0025 <0.011 0.0025 <0.0079 <0.038 <0.024 0.125 0.0121 0.0053 <0.038 <0.0084

35.4 <0.0047 <0.0025 <0.011 0.0021 <0.0079 <0.038 <0.024 0.0983 <0.0092 0.0088 <0.038 <0.0084

35.5 <0.0047 0.0035 <0.011 0.0019 <0.0079 <0.038 <0.024 0.147 <0.0092 0.0197 0.078 0.0112

35.6 <0.0047 <0.0025 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.124 <0.0092 0.0108 <0.038 <0.0084

35.7 <0.0047 <0.0025 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.109 <0.0092 0.0095 <0.038 <0.0084

35.8 <0.0047 <0.0025 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.134 <0.0092 0.0116 <0.038 <0.0084

35.9 <0.0047 <0.0025 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.0519 <0.0092 0.0062 <0.038 0.0162

35.10 <0.0047 <0.0025 <0.011 <0.0014 <0.0079 <0.038 <0.024 0.0595 <0.0092 0.003 <0.038 <0.0084

TABLE D-1. November 1996 Metal Concentrations Analyzed at ManTech

0.45 μm filtered samples, all concentrations in mg/L

Well Cu Cr Ni Zn Ag Tl Pb Sr V Ba B Ti 
109

DESC Na K Ca Mg Fe Mn Al As Cd Cr Ag Pb Ba 

ML11-0 27.1 <1.0 16.0 9.5 0.20 0.221 <0.048 <0.011 0.0001 0.111 <0.0028 <0.0071 0.020

ML11-1 66.1 <1.0 13.9 8.3 0.01 0.127 <0.048 <0.011 <0.0012 1.66 <0.0028 <0.0071 0.029

ML11-2 64.8 <1.0 13.6 9.2 0.41 0.271 0.29 <0.011 0.0015 0.575 <0.0028 <0.0071 0.032

ML11-3 121.0 <1.0 22.2 17.3 <0.0086 0.477 <0.048 <0.011 0.0019 1.38 <0.0029 <0.0071 0.068

ML11-4 128.0 <1.0 17.7 12.3 1.31 0.369 1.23 <0.011 <0.0012 2.07 <0.0028 <0.0071 0.064

ML11-5 45.1 4.8 31.7 15.0 0.03 2.830 <0.048 <0.012 <0.0012 0.132 <0.0029 <0.0071 0.068

ML11-6 30.2 4.4 33.9 12.2 0.06 2.790 <0.048 <0.012 <0.0012 0.0476 <0.0029 <0.0071 0.052

ML11-7 15.5 2.6 22.3 7.3 0.40 1.390 <0.048 <0.011 <0.0012 <0.0047 <0.0029 <0.0071 0.019

ML11-8 15.0 2.1 21.9 6.5 0.64 0.937 0.28 <0.011 <0.0012 <0.0047 <0.0028 <0.0071 0.015

ML11-9 14.9 2.6 23.4 5.6 0.27 0.809 <0.048 <0.011 <0.0012 <0.0047 <0.0029 <0.0071 0.015

ML11-10 15.6 3.8 17.6 6.0 0.80 0.540 0.14 <0.011 0.0002 <0.0047 <0.0028 <0.0071 0.014

ML12-1 57.6 <1.0 9.7 6.1 0.06 0.129 <0.048 <0.011 <0.0012 1.36 <0.0028 0.0079 0.021

ML12-2 114.0 <1.0 12.7 9.8 0.56 0.282 0.25 <0.011 <0.0012 2.23 <0.0028 <0.0071 0.038

ML12-3 137.0 <1.0 15.9 10.5 0.73 0.359 0.68 <0.011 <0.0012 2.29 <0.0028 <0.0071 0.059

ML12-4 100.0 2.2 23.1 11.3 0.23 1.200 0.12 <0.011 <0.0012 1.09 <0.0029 <0.0071 0.055

ML12-5 29.3 6.2 31.9 9.1 49.20 1.100 11.90 0.013 0.0017 0.0913 <0.0029 0.0175 0.210

ML12-6 10.8 2.2 6.9 2.5 11.80 0.103 3.98 <0.012 <0.0012 0.0138 <0.0028 0.0073 0.038

ML12-7 7.8 2.5 6.7 2.2 5.21 0.044 2.50 <0.011 <0.0012 0.0111 <0.0028 <0.0072 0.020

ML12-8 4.3 1.7 6.3 2.4 2.13 0.029 1.32 <0.011 <0.0012 0.0075 <0.0028 <0.0071 0.007

ML12-9 4.0 <1.0 7.0 2.7 0.87 <0.013 0.82 <0.011 <0.0012 0.0071 <0.0028 <0.0071 0.004

ML12-10 6.4 <1.0 8.9 0.6 0.09 <0.013 0.09 <0.011 <0.0012 0 <0.0028 <0.0071 <0.0015

ML13-0 59.8 <1.0 9.3 5.9 0.46 0.080 <0.048 <0.011 0.0025 <0.0047 <0.0028 <0.0071 0.013

ML13-1 94.8 <1.0 6.5 7.1 0.12 0.111 <0.048 <0.011 <0.0012 <0.0047 <0.0028 <0.0071 0.005

ML13-2 49.0 3.6 8.9 7.2 0.03 0.078 <0.048 <0.011 <0.0012 <0.0047 <0.0028 0.0096 0.020

ML13-3 19.2 1.6 8.2 3.9 0.01 0.028 <0.048 <0.011 <0.0012 <0.0047 <0.0028 <0.0071 0.022

ML13-4 9.3 <1.0 4.5 0.1 0.01 <0.013 <0.048 <0.011 0.0027 <0.0047 <0.0028 <0.0071 0.015

ML13-5 8.0 <1.0 5.2 0.1 0.03 <0.013 <0.048 <0.011 0.0019 0.0071 <0.0028 <0.0071 <0.0015

ML13-6 6.6 <1.0 5.4 0.2 0.02 <0.013 <0.048 <0.011 0.0014 <0.0047 <0.0028 <0.0071 0.003

ML13-7 5.4 <1.0 3.0 0.0 0.03 <0.013 <0.048 <0.011 0.0014 0.007 <0.0028 <0.0071 0.020

ML13-8 4.7 <1.0 2.7 <0.035 0.02 <0.013 <0.048 <0.011 <0.0012 0.0063 <0.0028 <0.0071 0.017

ML13-9 4.6 <1.0 3.2 <0.035 0.02 <0.013 <0.048 <0.011 <0.0012 0.0006 <0.0028 <0.0071 0.006

ML13-10 5.0 <1.0 3.7 <0.035 0.10 <0.013 <0.048 0.016 <0.0012 0.0329 <0.0028 <0.0071 <0.0015

ML14-0 47.3 <1.0 1.1 <0.035 0.02 <0.013 0.06 <0.011 <0.0012 <0.0047 <0.0028 <0.0071 <0.0015

ML14-1 54.1 <1.0 6.5 3.8 0.01 <0.013 <0.048 <0.011 <0.0012 <0.0047 <0.0028 <0.0071 0.004

ML14-2 14.3 2.0 6.7 0.6 0.01 <0.013 0.08 <0.011 <0.0012 0.005 <0.0028 <0.0071 0.002

ML14-3 10.7 <1.0 2.6 <0.035 <0.0086 <0.013 0.05 <0.011 <0.0012 <0.0047 <0.0028 <0.0071 <0.0015

ML14-4 6.4 <1.0 1.4 <0.035 <0.0086 <0.013 0.05 <0.011 0.002 <0.0047 <0.0028 <0.0071 <0.0015

ML14-5 7.5 <1.0 1.3 <0.035 <0.0086 <0.013 0.08 <0.011 <0.0012 <0.0047 <0.0028 <0.0071 <0.0015

ML14-6 7.6 <1.0 1.5 <0.035 0.02 <0.013 0.05 <0.011 <0.0012 <0.0047 <0.0028 <0.0071 <0.0015

ML14-7 6.0 <1.0 2.5 <0.035 <0.0086 <0.013 0.05 <0.011 <0.0012 <0.0047 <0.0028 <0.0071 <0.0015

ML14-8 7.6 <1.0 3.0 <0.035 0.00 <0.013 <0.048 <0.011 <0.0003 <0.0047 <0.0028 <0.0071 <0.0015

ML14-9 3.3 <1.0 3.4 0.3 1.47 0.017 1.74 <0.011 0.0016 0.008 <0.0028 <0.0071 0.006

ML14-10 3.0 <1.0 4.7 0.4 1.09 0.035 1.00 0.014 <0.0012 0.007 <0.0028 <0.0071 0.005

ML15-0 32.2 <1.0 11.2 6.8 0.12 0.191 <0.048 <0.011 <0.0012 <0.0047 <0.0028 <0.0071 0.015

ML15-1 54.9 <1.0 0.8 0.4 0.36 0.068 <0.048 0.015 <0.0012 <0.0047 <0.0028 <0.0071 <0.0015

ML15-2 74.2 <1.0 7.8 3.7 0.41 0.157 <0.048 0.017 0.0022 <0.0047 <0.0028 0.0155 0.003

ML15-3 21.1 1.5 0.6 0.2 0.12 0.061 <0.048 <0.011 <0.0012 <0.0047 <0.0028 <0.0071 <0.0015

ML15-4 8.0 <1.0 0.3 0.3 1.03 0.029 1.15 0.014 <0.0012 <0.0047 <0.0028 <0.0071 0.002

ML15-5 7.8 <1.0 1.7 0.9 1.15 0.180 1.14 <0.011 0.0003 <0.0047 <0.0028 <0.0071 0.006

ML15-6 15.9 <1.0 8.0 1.9 2.10 0.248 0.12 0.029 <0.0012 <0.0047 <0.0028 <0.0071 0.006

ML15-7 8.1 4.7 6.2 1.5 0.74 0.180 <0.048 <0.011 0.0002 <0.0047 <0.0028 0.0037 0.003

ML15-8 4.4 4.4 4.9 1.3 1.14 0.151 1.98 <0.011 <0.0012 <0.0047 <0.0028 <0.0071 0.009

ML15-9 2.9 5.1 6.4 1.3 1.17 0.084 2.19 <0.011 <0.0012 0.0062 <0.0028 <0.0071 0.012

ML15-10 3.2 4.3 7.3 1.3 2.09 0.047 2.72 <0.011 <0.0012 0.0056 <0.0028 <0.0072 0.015

TABLE D-2: February 1997 Metal Concentrations Analyzed at ManTech.

0.45 μm filtered samples, all concentrations in mg/L
110

ML21-1 19.3 1.5 10.7 6.5 0.01 0.096 <0.048 <0.011 <0.0012 <0.0047 <0.0028 <0.0071 0.029

ML21-2 31.5 2.0 8.1 4.8 <0.0086 0.092 <0.048 <0.011 <0.0012 0.872 <0.0028 <0.0071 0.040

ML21-3 30.3 1.7 5.1 3.3 0.05 0.173 <0.048 <0.011 <0.0012 0.668 <0.0028 <0.0071 0.046

ML21-4 86.8 2.4 22.8 15.9 <0.0086 0.499 <0.048 <0.011 <0.0012 0.732 <0.0029 0.0084 0.074

ML21-5 121.0 2.5 18.0 13.5 <0.0086 0.346 <0.048 <0.011 <0.0012 4.51 <0.0028 <0.0072 0.093

ML21-6 34.1 7.7 28.1 14.8 0.01 2.640 <0.048 <0.012 <0.0012 0.163 <0.0029 0.011 0.075

ML21-7 13.3 4.1 23.8 10.2 5.90 2.710 <0.027 <0.011 <0.0019 0.0037 <0.011 <0.014 0.063

ML22-2 29.8 1.5 5.8 2.9 0.01 0.005 0.09 <0.010 <0.0019 <0.0028 <0.011 <0.014 0.030

ML22-3 92.7 1.6 4.4 9.7 0.02 0.081 <0.027 <0.010 <0.0019 <0.0028 <0.011 <0.014 0.057

ML22-4 13.4 0.8 5.9 0.4 0.02 0.006 <0.027 <0.010 <0.0019 <0.0028 <0.011 <0.014 0.059

ML23-1 42.6 1.1 5.0 5.7 <0.0066 0.044 <0.027 <0.010 <0.0019 <0.0028 <0.011 <0.014 0.048

ML23-2 63.0 0.7 6.2 6.1 <0.0066 0.023 <0.027 <0.010 <0.0019 <0.0028 <0.011 <0.014 0.048

ML23-3 83.9 1.5 5.0 8.7 0.05 0.088 <0.027 <0.010 <0.0019 <0.0028 <0.011 <0.014 0.055

ML23-4 21.8 2.6 15.9 3.5 1.23 0.375 <0.027 0.027 <0.0019 <0.0028 <0.011 <0.014 0.045

ML24-1 40.4 <0.50 3.5 3.8 <0.0066 0.018 <0.027 <0.010 <0.0019 <0.0028 <0.011 <0.014 0.058

ML24-2 42.6 0.5 3.9 2.6 <0.0066 0.016 <0.027 <0.010 <0.0019 <0.0028 <0.011 <0.014 0.053

ML24-3 97.4 1.5 4.9 8.6 <0.0066 0.032 <0.027 <0.010 <0.0019 <0.0028 <0.011 <0.014 0.033

ML24-4 13.9 0.9 5.3 0.1 <0.0066 0.008 <0.027 <0.010 <0.0019 <0.0028 <0.011 <0.014 0.082

ML24-5 13.2 <0.50 4.2 <0.035 <0.0066 <0.0028 <0.027 <0.010 <0.0019 <0.0028 <0.011 <0.014 0.086

ML24-6 9.1 <0.50 4.2 <0.035 <0.0066 <0.0028 <0.027 <0.010 <0.0019 <0.0028 <0.011 <0.014 0.059

ML24-7 10.3 <0.50 5.0 <0.035 <0.0066 0.004 <0.027 <0.010 0.0023 <0.0028 <0.011 <0.014 0.069

ML25-1 51.5 0.7 4.6 2.4 3.75 0.124 <0.027 <0.010 <0.0019 <0.0028 <0.011 <0.014 0.045

ML25-2 7.7 2.4 5.6 2.0 2.26 0.484 <0.027 <0.010 <0.0019 <0.0028 <0.011 <0.014 0.044

ML25-3 48.4 1.9 4.1 0.0 0.01 <0.0028 0.18 <0.010 <0.0019 <0.0028 <0.011 <0.014 0.029

ML25-4 75.6 <0.50 6.0 0.4 0.01 0.012 <0.027 <0.010 <0.0019 <0.0028 <0.011 <0.014 0.045

ML25-5 83.7 1.2 5.3 0.7 0.09 0.032 <0.027 <0.010 <0.0019 <0.0028 <0.011 <0.014 0.040

ML25-6 62.5 3.8 5.2 2.6 0.67 0.395 1.15 0.013 <0.0019 <0.0028 <0.011 <0.014 0.060

ML25-7 7.8 2.2 5.8 2.1 2.30 0.511 <0.027 <0.010 <0.0019 <0.0028 <0.011 <0.014 0.039

ML31-0 16.1 <0.50 7.9 4.7 0.13 0.107 <0.027 <0.010 0.0022 0.0437 <0.011 <0.014 0.006

ML31-1 28.5 <0.51 10.0 6.0 0.01 0.091 0.03 <0.010 <0.0019 0.0664 <0.011 <0.014 0.015

ML31-2 30.6 <0.51 9.9 5.9 0.09 0.093 <0.027 <0.010 <0.0019 0.119 <0.011 <0.014 0.017

ML31-3 30.6 <0.50 9.5 5.8 <0.0066 0.131 <0.027 <0.010 <0.0019 0.0884 <0.011 <0.014 0.016

ML31-4 55.8 0.7 18.5 12.6 0.12 0.295 0.07 <0.010 <0.0019 0.142 <0.011 <0.014 0.039

ML31-5 88.8 2.3 31.4 19.5 0.01 1.240 <0.027 <0.010 <0.0019 0.0905 <0.011 <0.014 0.087

ML31-6 41.9 7.0 29.5 17.7 0.02 0.857 <0.027 <0.010 <0.0019 0.0043 <0.011 <0.014 0.065

ML31-7 27.0 5.3 30.9 13.8 <0.0066 0.864 <0.027 <0.010 <0.0019 <0.0028 <0.011 <0.014 0.042

ML31-8 12.0 3.7 16.8 7.1 0.02 0.427 <0.027 <0.010 <0.0019 0.0019 <0.011 <0.014 0.019

ML31-9 12.4 2.9 22.1 6.9 <0.0066 0.406 <0.027 <0.010 <0.0019 <0.0028 <0.011 <0.014 0.016

ML31-10 16.8 2.8 22.8 6.4 0.01 0.284 <0.027 <0.010 <0.0019 <0.0028 <0.011 <0.014 0.015

ML32-0 17.0 <0.50 8.4 5.2 1.04 0.128 <0.027 <0.010 <0.0019 <0.0028 <0.011 <0.014 0.006

ML32-1 26.0 <0.51 10.0 5.9 <0.0066 0.053 0.03 <0.010 <0.0019 0.0334 <0.011 <0.014 0.015

ML32-2 30.2 <0.50 8.3 5.1 0.01 0.117 <0.027 <0.010 <0.0019 0.219 <0.011 <0.014 0.015

ML32-3 100.0 1.2 31.2 22.4 <0.0066 0.472 <0.027 <0.010 <0.0019 0.278 <0.011 <0.014 0.094

ML32-4 65.0 4.2 39.1 16.2 0.19 2.620 <0.027 <0.011 <0.0019 0.0307 <0.011 <0.014 0.073

ML32-5 39.4 4.3 35.7 9.7 2.94 1.790 <0.027 <0.010 <0.0019 <0.0028 <0.011 <0.014 0.039

ML32-6 10.0 3.5 24.3 1.7 16.20 0.268 <0.039 0.021 <0.0021 0.0064 <0.0054 <0.015 0.011

ML32-7 10.2 3.7 25.3 1.9 12.20 0.111 <0.039 <0.014 <0.0021 <0.0036 <0.0054 <0.015 0.011

ML32-8 22.2 5.3 38.3 2.3 1.38 0.013 <0.039 <0.014 <0.0021 0.0046 <0.0054 <0.015 0.020

ML32-9 7.7 10.6 24.6 2.1 <0.0067 <0.0022 <0.039 <0.014 <0.0021 <0.0036 <0.0054 <0.015 0.015

ML32-10 10.7 7.8 21.7 0.5 0.04 <0.0022 0.13 <0.014 <0.0021 0.0037 <0.0054 <0.015 <0.0021

DESC Na K Ca Mg Fe Mn Al As Cd Cr Ag Pb Ba 

TABLE D-2: February 1997 Metal Concentrations Analyzed at ManTech.

0.45 μm filtered samples, all concentrations in mg/L
111

ML33-0 23.5 2.0 5.2 1.2 0.01 0.004 <0.039 <0.014 <0.0021 <0.0036 <0.0054 <0.015 <0.0021

ML33-1 76.9 2.6 15.3 12.1 2.61 0.158 <0.039 <0.014 <0.0021 0.0306 <0.0054 <0.015 0.015

ML33-2 65.2 3.3 22.3 8.6 10.90 0.919 <0.039 <0.014 <0.0021 <0.0036 <0.0054 <0.015 0.015

ML33-3 51.3 2.8 22.4 10.8 8.10 0.815 <0.039 <0.014 <0.0021 0.0069 <0.0054 <0.015 0.011

ML33-4 13.5 2.3 21.8 1.3 <0.0067 0.010 <0.039 <0.014 <0.0021 <0.0036 <0.0054 <0.015 <0.0021

ML33-5 27.0 2.7 35.1 2.6 0.01 0.012 <0.039 <0.014 <0.0021 0.0009 <0.0054 <0.015 <0.0021

ML33-6 12.4 3.1 35.4 3.9 0.03 0.030 <0.039 <0.014 <0.0021 <0.0036 <0.0054 <0.015 <0.0021

ML33-7 14.4 4.3 38.0 2.9 8.02 0.299 <0.039 <0.014 <0.0021 <0.0036 <0.0054 <0.015 0.015

ML33-8 10.3 2.8 43.0 1.1 0.08 0.032 0.34 <0.014 <0.0021 <0.0036 <0.0054 <0.015 <0.0021

ML33-9 13.4 1.6 18.1 1.7 0.01 0.026 <0.039 <0.014 <0.0021 <0.0036 <0.0054 <0.015 <0.0021

ML33-10 21.7 6.4 83.8 0.3 1.29 0.014 4.64 <0.014 <0.0021 <0.0036 <0.0054 <0.015 0.012

ML34-0 19.8 1.9 3.9 0.3 0.01 <0.0022 <0.039 <0.014 <0.0021 <0.0036 <0.0054 <0.015 <0.0021

ML34-1 65.6 1.5 10.0 10.2 0.02 0.024 <0.039 <0.014 <0.0021 <0.0036 <0.0054 <0.015 0.007

ML34-2 65.0 2.4 13.3 8.3 0.02 0.018 <0.039 <0.014 <0.0021 <0.0036 <0.0054 <0.015 0.004

ML34-3 42.6 2.6 13.1 2.2 0.03 0.025 <0.039 <0.014 <0.0021 <0.0036 <0.0054 <0.015 0.003

ML34-4 45.8 4.1 8.7 4.1 0.14 0.052 <0.039 <0.014 <0.0021 <0.0036 <0.0054 <0.015 <0.0021

ML34-5 44.3 2.1 11.1 1.7 0.13 0.045 <0.039 <0.014 <0.0021 0.0074 <0.0054 <0.015 <0.0021

ML34-6 27.5 2.2 6.8 1.1 0.01 0.011 <0.039 <0.014 <0.0021 <0.0036 <0.0054 <0.015 <0.0021

ML34-7 29.4 2.0 7.3 2.0 0.74 0.144 <0.039 <0.014 <0.0021 0.0059 <0.0054 <0.015 <0.0021

ML34-8 19.7 <0.98 7.6 1.6 0.55 0.133 <0.039 <0.014 <0.0021 <0.0036 <0.0054 <0.015 <0.0021

ML34-9 18.3 1.1 8.7 2.1 0.42 0.121 <0.039 <0.014 <0.0021 0.0042 <0.0054 <0.015 <0.0021

ML34-10 16.0 <0.98 7.4 1.5 0.12 0.053 <0.039 <0.014 <0.0021 0.0061 <0.0054 <0.015 <0.0021

ML35-0 15.2 <0.98 8.1 3.4 3.06 0.773 <0.039 <0.014 <0.0021 <0.0036 <0.0054 <0.015 0.004

ML35-1 27.2 <0.98 5.7 1.9 0.04 0.025 <0.039 <0.014 <0.0021 <0.0036 <0.0054 <0.015 <0.0021

ML35-2 32.5 <0.98 6.6 2.5 0.81 0.107 <0.039 0.025 <0.0021 <0.0036 <0.0054 <0.015 <0.0021

ML35-3 55.0 0.6 18.3 11.5 0.77 0.298 <0.039 <0.014 <0.0021 <0.0036 <0.0054 <0.015 0.005

ML35-4 56.4 1.7 13.3 5.8 2.48 0.613 0.16 0.016 <0.0021 <0.0036 <0.0054 <0.015 0.009

ML35-5 37.7 1.9 10.2 4.0 0.55 0.648 <0.039 <0.014 <0.0021 <0.0036 <0.0054 0.015 0.010

ML35-6 11.2 2.8 15.2 4.6 0.11 1.040 <0.039 <0.014 <0.0021 <0.0036 <0.0054 <0.015 0.011

ML35-7 11.3 2.8 13.0 4.4 0.69 0.875 0.35 <0.014 <0.0021 <0.0036 <0.0054 <0.015 0.011

ML35-8 12.7 2.5 10.4 2.4 0.66 0.641 <0.039 <0.014 <0.0021 <0.0036 <0.0054 <0.015 0.007

ML35-9 17.6 2.3 6.7 1.3 1.15 0.211 1.55 0.025 <0.0021 <0.0036 <0.0054 <0.015 0.009

ML35-10 18.6 1.4 3.5 0.8 0.14 0.135 0.12 <0.014 <0.0021 <0.0036 <0.0054 <0.015 <0.0021

MW13 160.0 <0.98 17.9 12.4 <0.0067 0.048 <0.039 <0.014 <0.0021 3.26 <0.0054 <0.015 0.054

MW18 119.0 <0.98 14.1 11.6 0.65 0.656 <0.039 <0.014 <0.0021 0.0165 <0.0054 <0.015 0.054

MW35D 15.8 <0.98 14.2 5.0 6.11 0.213 <0.039 <0.014 <0.0021 <0.0036 <0.0054 <0.015 0.363

MW38 19.4 1.7 12.3 5.4 0.02 0.141 <0.039 <0.014 <0.0021 <0.0036 <0.0054 <0.015 0.014

MW46 11.2 <0.98 5.5 3.3 0.04 0.041 <0.039 <0.014 <0.0021 0.0044 <0.0054 <0.015 0.002

MW47 30.3 <0.98 5.1 2.6 0.08 0.180 <0.039 <0.014 <0.0021 <0.0036 <0.0054 <0.015 0.002

MW48 54.1 <0.98 10.2 6.6 0.03 0.353 <0.039 <0.014 <0.0021 0.911 <0.0054 <0.015 0.025

MW49 56.1 <0.98 5.0 2.1 0.40 0.160 <0.039 0.025 <0.0021 <0.0036 <0.0054 <0.015 0.003

MW50 9.3 <0.98 4.3 2.6 1.02 0.051 <0.039 <0.014 <0.0021 <0.0036 <0.0054 <0.015 <0.0021

DESC Na K Ca Mg Fe Mn Al As Cd Cr Ag Pb Ba 

TABLE D-2: February 1997 Metal Concentrations Analyzed at ManTech.

0.45 μm filtered samples, all concentrations in mg/L
112

Sample ID Na K Ca Mg Fe Mn Al As Cr Ni Zn ML11-10 11.9 6.16 28.2 12.7 4.38 0.742 <0.033 <0.021 <0.0023 <0.0088 <0.0012 <ML11-10DUP 11.9 6.39 27.5 12.5 4.25 0.727 <0.033 <0.021 0.0037 <0.0088 <0.0012 <ML11-9 14.8 5.12 31.1 8.98 7.53 0.986 <0.033 <0.021 <0.0023 <0.0088 0.0001 <ML11-8 15.8 4.11 27.3 9.24 5.27 0.995 <0.033 <0.021 <0.0023 <0.0088 <0.0012 <ML11-7 15.9 4.17 28 8.45 1.45 1.6 <0.033 <0.021 <0.0023 <0.0088 <0.0012 <ML11-6 33.1 5.32 31.3 10.8 <0.0050 2.74 <0.033 <0.021 0.078 0.0121 <0.0012 <ML11-5 36.7 5.35 25.2 11.6 <0.0050 2.41 <0.033 <0.021 0.0767 <0.0088 0.0014 <ML11-4 102 1.29 17.6 12.9 <0.0050 0.335 <0.033 <0.021 2.13 <0.0088 0.0015 <ML11-3 111 1.1 15.1 11.9 0.342 0.329 0.19 <0.021 2.03 <0.0088 0.0035 <ML11-2 67.1 0.91 12.3 8.74 <0.0049 0.254 <0.033 <0.021 0.513 <0.0088 <0.0012 <ML11-1 48.6 0.85 12 8.13 <0.0049 0.182 <0.033 <0.021 0.681 <0.0088 0.0016 <ML11-0 38.1 1.04 18.2 11.9 <0.0049 0.166 <0.033 <0.021 0.168 0.0019 0.002 <ML11-0DUP 37.6 1.3 18.1 11.8 <0.0049 0.161 <0.033 <0.021 0.17 <0.0088 0.002 <ML12-10 26.6 4.73 42.6 3.66 0.0097 0.0245 <0.033 <0.021 0.0047 0.0111 0.0104 <ML12-9DUP 29.6 6.44 49.9 5.26 2.57 0.179 <0.033 <0.021 <0.0023 <0.0088 <0.0012 <ML12-9 29.9 6.5 50.1 5.27 2.56 0.179 0.042 <0.021 <0.0023 <0.0088 <0.0012 <ML12-8 22.6 6.25 40.4 4.89 5.04 0.0893 <0.033 <0.021 <0.0023 <0.0088 <0.0012 <ML12-7 29.6 5.35 21.2 4.61 4.74 0.0848 0.046 <0.021 <0.0023 <0.0088 <0.0012 <ML12-6 24.7 4.91 23 5.07 11.2 0.146 <0.033 <0.021 <0.0023 0.0108 <0.0012 <ML12-5 64.1 5.74 29.1 7.11 18.7 1.09 <0.033 <0.021 <0.0024 <0.0088 <0.0013 <ML12-4 99.8 2.28 16.9 10.7 <0.0050 0.868 <0.033 <0.021 1.13 <0.0088 <0.0012 <ML12-3 102 1.22 14.7 11.6 <0.0049 0.335 <0.033 <0.021 1.58 <0.0088 0.0037 <ML12-2 88.5 0.77 15.4 10.9 <0.0049 0.378 <0.033 <0.021 1.05 <0.0088 <0.0012 <ML12-1 64.5 <0.32 13.8 8.96 <0.0049 0.247 <0.033 <0.021 0.517 <0.0088 0.0017 <ML13-10 16.6 2.28 25.8 1.26 0.0176 0.0149 <0.033 <0.021 <0.0023 <0.0088 <0.0012 <ML13-9 5.41 1.95 9.09 0.042 0.0149 <0.0035 <0.033 <0.021 <0.0023 <0.0088 <0.0012 <ML13-8 4.97 2.34 5.5 <0.037 0.0116 <0.0035 <0.033 <0.021 <0.0023 <0.0088 <0.0012 <ML13-7DUP 5.5 2.78 4.17 0.056 0.015 <0.0035 <0.033 <0.021 <0.0023 0.0099 <0.0012 <ML13-7 5.42 2.74 4.12 0.056 0.0116 <0.0035 <0.033 <0.021 <0.0023 0.0088 <0.0012 <ML13-6 7.72 3.16 4.76 0.159 0.0116 <0.0035 <0.033 <0.021 <0.0023 <0.0088 <0.0012 <ML13-5 8.63 2.56 6.74 0.081 0.0081 <0.0035 <0.033 <0.021 <0.0023 0.0112 <0.0012 <ML13-4 5.34 1.4 5.26 0.143 0.0115 0.0114 <0.033 <0.021 <0.0023 0.0115 <0.0012 <ML13-3 18 2.23 10.8 0.765 0.018 0.0133 <0.033 <0.021 <0.0023 0.0091 <0.0012 <ML13-2 44.4 4.45 7.21 5.25 0.0235 0.0439 <0.033 <0.021 0.0024 <0.0088 <0.0012 <ML13-1 81.2 3.13 2.5 9.75 0.046 0.0603 <0.033 <0.021 <0.0023 <0.0088 <0.0012 <ML13-0 64.5 2.03 3.36 3.36 0.0174 0.0134 <0.033 <0.021 <0.0023 <0.0088 <0.0012 <

TABLE D 3. December 1998 Dissolved Metal Concentrations Analyzed at ManTech

0.45 μm filtered samples, all concentrations in mg/L
113

ML14-10 10.9 1.13 14.9 1.11 3.4 0.25 <0.033 <0.021 <0.0023 <0.0088 <0.0012 <ML14-9 3.12 1.64 14.8 1.29 0.577 0.209 <0.033 <0.021 <0.0023 <0.0088 <0.0012 <ML14-8DUP 5.03 2.39 4.03 <0.037 <0.0049 <0.0035 <0.033 <0.021 <0.0023 <0.0088 <0.0012 <ML14-8 5.03 2.41 4.02 <0.037 <0.0049 <0.0035 <0.033 <0.021 <0.0023 <0.0088 <0.0012 <ML14-7 5.83 1.66 2.05 <0.037 0.0082 <0.0035 0.08 <0.021 <0.0023 0.0092 <0.0012 <ML14-6 6.31 2.19 2.13 <0.037 <0.0049 <0.0035 <0.033 <0.021 0.0031 0.0119 <0.0012 <ML14-4 6.5 2.35 3.8 <0.037 0.0033 <0.0035 <0.033 <0.021 <0.0023 0.0024 <0.0012 <ML14-3 10.7 1.47 4.02 0.246 0.0115 0.0094 <0.033 <0.021 <0.0023 <0.0088 <0.0012 <ML14-2 12 2.76 9.06 0.772 0.0113 <0.0035 <0.033 <0.021 <0.0023 0.0111 <0.0012 <ML14-1 60.6 2 1.19 0.276 0.0116 <0.0035 <0.033 <0.021 <0.0023 <0.0088 <0.0012 <ML14-0 51.3 1.56 1.29 <0.037 0.015 <0.0035 <0.033 <0.021 <0.0023 <0.0088 <0.0012 <ML15-10 39.6 4.77 32.1 1.89 <0.0034 0.0866 <0.030 <0.017 <0.0016 <0.0071 <0.0015 <ML15-10 40 4.54 32.5 1.87 0.0087 0.0846 <0.030 <0.017 0.0026 <0.0071 <0.0015 <ML15-9 35 4.35 16.2 0.988 0.0599 0.0591 <0.030 <0.017 0.0026 0.0084 <0.0015 <ML15-8 24.7 4.53 17.1 1.43 0.373 0.0951 <0.030 <0.017 <0.0016 <0.0071 <0.0015 ML15-7 23.5 3.89 17.1 1.27 0.1 0.0851 <0.030 <0.017 <0.0016 <0.0071 <0.0015 <ML15-6DUP 12.2 3.71 10.6 2.2 2.92 0.243 <0.030 0.037 <0.0016 <0.0071 <0.0015 <ML15-6 12 3.92 10.5 2.2 2.85 0.241 <0.030 <0.017 0.0016 <0.0071 <0.0015 <ML15-5 7.36 1.73 1.88 0.846 0.312 0.193 0.085 0.019 <0.0016 <0.0071 <0.0015 <ML15-4 5.41 1.57 <0.011 <0.034 <0.0034 0.0038 <0.030 <0.017 <0.0016 <0.0071 <0.0015 <ML15-3 8.94 3.14 2.36 0.126 <0.0034 0.0067 0.112 0.009 0.0003 <0.0071 <0.0015 <ML15-2 44.1 2.94 3.33 2.37 0.0516 0.0237 <0.033 <0.021 <0.0023 <0.0088 <0.0012 <ML15-1 57.8 0.85 2.62 1.36 0.75 0.256 <0.033 0.035 <0.0023 <0.0088 <0.0012 <ML15-0 47 0.66 7.08 4.22 1.38 0.36 <0.033 <0.021 <0.0023 <0.0088 <0.0012 <ML21-7DUP 21.7 5.42 26.6 9.14 6.34 3.46 <0.030 <0.017 <0.0016 0.0144 <0.0015 <ML21-7 21.7 5.53 26.2 9 6.23 3.41 <0.030 <0.017 <0.0016 <0.0071 <0.0015 <ML21-6 39.4 5.16 25.3 11.1 3.29 2.08 <0.030 <0.017 0.002 <0.0071 0.0038 <ML21-5 81.3 1.55 15 11.1 <0.0034 0.266 <0.030 <0.017 3.24 0.0096 <0.0015 <ML21-4 63.9 0.74 8.21 5.59 <0.0034 0.202 <0.030 <0.017 1.37 <0.0071 <0.0015 <ML21-3 33.1 0.6 9.12 5.86 <0.0034 0.21 <0.030 <0.017 0.276 <0.0071 <0.0015 <ML21-2 23.3 0.4 10.2 6.12 <0.0034 0.135 <0.030 <0.019 0.365 <0.0071 <0.0015 <ML21-1DUP 22.2 0.76 12.7 7.52 <0.0034 0.095 <0.030 <0.017 0.0019 0.0129 <0.0015 <ML21-1 22.3 0.78 12.9 7.62 <0.0034 0.099 <0.030 <0.017 0 <0.0071 <0.0015 <ML22.5-8 10 4.3 21.9 2.69 10.9 0.321 <0.030 0.02 <0.0016 <0.0071 <0.0015 <ML22.5-7 9.9 4.5 22.8 2.93 12.3 0.425 <0.030 <0.017 <0.0016 <0.0071 <0.0015 <ML22.5-6 10.2 4.42 23.6 3.11 12.2 0.489 <0.030 <0.017 0.0022 <0.0071 <0.0015 <ML22.5-5 8.2 4.29 22.8 3.09 12.1 0.487 <0.030 <0.017 <0.0016 0.0085 <0.0015 <

TABLE D 3. December 1998 Dissolved Metal Concentrations Analyzed at ManTech

0.45 μm filtered samples, all concentrations in mg/L

Sample ID Na K Ca Mg Fe Mn Al As Cr Ni Zn 
114

ML22.5-4 28.1 3.27 23.8 5.62 10.3 0.788 <0.030 <0.017 <0.0016 <0.0071 <0.0015 <ML22.5-3 41.8 2.42 18.1 6.84 11.1 1.09 <0.030 <0.017 <0.0016 <0.0071 <0.0015 ML22.5-2 41.1 0.82 10.3 6.03 2.98 0.502 <0.030 <0.017 0.16 <0.0071 0.0016 <ML22.5-1 30.1 0.89 9.14 5.98 0.54 0.232 <0.030 <0.017 0.212 <0.0071 <0.0015 <ML22.5-0 38 1.19 7.3 5.57 7.79 0.15 <0.030 <0.017 <0.0016 <0.0071 <0.0015 <ML23.5-0 36.1 1.41 3.25 8.8 0.0277 0.0175 <0.030 <0.017 <0.0016 <0.0071 <0.0015 <ML23.5-8 14.4 1.23 4.72 1.52 <0.0034 0.0395 <0.030 <0.017 <0.0016 <0.0071 <0.0015 <ML23.5-7 14.1 0.91 4.25 1.43 0.0566 0.0635 <0.030 <0.017 <0.0016 <0.0071 <0.0015 <ML23.5-6 12.8 0.96 4.02 1.21 <0.0034 0.0355 0.042 <0.017 <0.0016 0.0095 <0.0015 <ML23.5-5DUP 21.2 1.37 6.69 2.67 0.483 0.243 <0.030 0.029 <0.0016 <0.0071 <0.0015 <ML23.5-5 21.2 1.09 6.78 2.69 0.49 0.243 <0.030 <0.017 <0.0016 <0.0071 <0.0015 <ML23.5-4 24.6 1.74 9.02 2.79 0.736 0.261 <0.030 <0.017 <0.0016 <0.0071 <0.0015 <ML23.5-3 42.7 1.8 9.85 2.98 0.11 0.0573 <0.030 <0.017 <0.0016 <0.0071 <0.0015 <ML23.5-2 52.7 2.33 6.05 2.69 0.659 0.187 <0.030 <0.017 0.0035 <0.0071 <0.0015 <ML23.5-1 49.7 2.72 3.24 4.74 0.0255 0.0125 <0.030 <0.017 <0.0016 0.0052 <0.0015 <ML24-7 7.98 1.9 3.84 0.13 0.0166 0.0356 <0.030 <0.017 <0.0016 <0.0071 <0.0015 <ML24-6 7.97 1.92 3.5 0.145 0.0705 0.0635 <0.030 <0.017 <0.0016 0.0075 <0.0015 <ML24-5 13.3 1.65 4.24 0.325 0.0199 0.0356 <0.030 <0.017 <0.0016 <0.0071 <0.0015 <ML24-4 19.5 1.94 4.79 0.277 <0.0034 0.0116 <0.030 <0.017 <0.0016 <0.0071 <0.0015 <ML24-3 59.2 2.09 3.22 3.46 0.0259 0.0136 <0.030 <0.017 <0.0016 <0.0071 <0.0015 <ML24-2 68.8 4.56 3.25 3.37 0.0309 0.0236 <0.030 <0.017 0.0003 <0.0071 <0.0015 <ML24-1 58.7 3.14 2.15 3.55 0.0291 0.0435 <0.030 <0.017 <0.0016 <0.0071 <0.0015 <ML25-7 12.1 4.77 10.6 4.85 2.43 1.17 <0.030 <0.017 <0.0016 0.0123 <0.0015 <ML25-6DUP 12.4 1.73 2.46 1.12 0.48 0.325 <0.030 <0.017 <0.0016 <0.0071 <0.0015 <ML25-6 12.3 1.8 2.44 1.14 0.467 0.323 <0.030 <0.017 <0.0016 <0.0071 <0.0015 <ML25-5 44.2 1.49 1.15 1.5 0.211 0.0227 <0.030 0.002 <0.0016 0.0002 <0.0015 <ML25-4 52.7 0.95 1.57 1.07 <0.0034 0.0117 0.064 <0.017 0.0032 0.0163 <0.0015 <ML25-3 62.5 2.96 1.31 0.454 0.02 0.0037 0.117 <0.017 <0.0016 <0.0071 <0.0015 <ML25-2 45.3 2.19 2.84 0.899 0.7 0.0416 <0.030 <0.017 <0.0016 0.0092 <0.0015 <ML25-1 49.6 0.75 2.47 1.34 1.85 0.129 <0.030 0.026 <0.0016 0.0079 <0.0015 <ML31-10 25.3 3.24 36.5 5.6 0.0234 0.435 <0.030 <0.017 <0.0016 <0.0071 <0.0015 <ML31-9DUP 23.9 4.34 34.9 7.04 <0.0034 0.501 <0.030 <0.017 0.0019 <0.0071 <0.0015 <ML31-9 23.9 4.46 34.2 6.99 <0.0034 0.501 <0.030 <0.017 <0.0016 <0.0071 0.0032 ML31-8 18.6 5.63 22.7 8.55 <0.0034 0.775 <0.030 <0.017 0.002 <0.0071 <0.0015 <ML31-7 39.8 7.33 33.5 14.2 <0.0034 1.01 <0.030 <0.017 <0.0016 <0.0071 <0.0015 <

TABLE D 3. December 1998 Dissolved Metal Concentrations Analyzed at ManTech

0.45 μm filtered samples, all concentrations in mg/L

Sample ID Na K Ca Mg Fe Mn Al As Cr Ni Zn 
115

ML31-6 51.8 7.3 29.9 17.1 <0.0034 1.03 <0.030 <0.017 <0.0016 <0.0071 0.0105 ML31-5 94.5 2.98 26 16.4 0.0054 0.956 <0.030 <0.017 0.0721 <0.0071 0.0042 ML31-4 58.7 0.83 17 11.6 <0.0034 0.292 <0.030 <0.017 0.0475 <0.0071 0.0027 ML31-3 28.3 <0.27 11.5 7.08 <0.0034 0.192 <0.030 <0.017 0.0102 <0.0071 0.0026 ML31-2 28.4 0.73 11.3 7.02 <0.0034 0.19 <0.030 <0.017 0.0083 <0.0071 <0.0015 ML31-1 23.7 0.44 10.4 6.29 <0.0034 0.119 <0.030 <0.017 0.0451 0.009 0.0031 ML31-0 21.6 0.54 9.69 5.9 <0.0034 0.0612 <0.030 <0.017 0.0022 0.011 0.0037 ML32-10 19.7 7.77 40.4 2.93 0.0387 0.0225 <0.030 <0.017 0.0028 <0.0071 0.0017 ML32-10DUP 19.6 7.73 40.4 2.96 0.032 0.0224 <0.030 <0.017 <0.0016 <0.0071 <0.0015 ML32-9 7.94 8.74 31.4 2.44 0.0088 <0.0013 <0.030 <0.017 0.0021 <0.0071 0.0016 ML32-8 24.5 2.55 38.7 4.47 3.62 0.104 <0.030 <0.017 <0.0016 0.0082 <0.0015 ML32-7 21.2 3.78 36.1 2.67 15.4 0.139 <0.030 <0.017 <0.0016 <0.0071 <0.0015 ML32-6 23.3 4.58 37.9 3.52 22.4 0.595 <0.030 <0.017 <0.0016 <0.0071 <0.0015 ML32-5D 48.2 5.34 44.6 9.47 0.384 2.31 <0.030 <0.017 0.0024 <0.0071 <0.0015 ML32-5 46.2 5.57 47.2 9.74 0.252 2.45 <0.030 <0.017 <0.0016 <0.0071 0.002 ML32-4 70.8 3.16 24.2 11.3 <0.0034 1.57 <0.030 <0.017 0.0401 0.0023 0.0001 ML32-3 48 1.74 20.7 14.4 0.0078 0.354 <0.030 <0.017 0.027 <0.0071 0.0016 ML32-2 24 1.38 11.1 6.91 <0.0034 0.17 <0.030 <0.017 0.0403 0.0106 0.0022 ML32-1 23.8 0.91 10.6 6.14 0.0078 0.0851 <0.030 <0.017 0.0607 <0.0071 0.0033 ML32-0 20.1 0.88 9.45 5.76 0.0822 0.0652 <0.030 <0.017 <0.0016 <0.0071 <0.0015 ML33-10 29.5 9 68.6 0.004 0.0242 <0.0040 5.17 0 <0.0024 0.0003 <0.019 ML33-9 21.4 4.03 29.8 2.81 0.416 0.134 <0.022 <0.029 <0.0024 <0.0083 <0.019 ML33-8 12.3 4.98 29.7 2.47 0.0431 0.0299 <0.022 <0.029 <0.0024 <0.0083 <0.019 ML33-7DUP 19.6 4.87 35.1 3.84 13.7 0.23 <0.022 <0.029 <0.0024 <0.0083 <0.019 ML33-7D 19.5 4.78 35.6 3.89 13.3 0.248 <0.022 <0.029 <0.0024 0.0109 <0.019 ML33-7 20.1 4.69 35.6 3.9 13.5 0.238 <0.022 <0.029 <0.0024 <0.0083 <0.019 ML33-6 18.3 3.95 38.8 5.26 14.1 0.626 <0.022 <0.029 <0.0024 <0.0083 <0.019 ML33-5 27.8 2.9 31.4 5.8 3.44 0.577 <0.022 <0.029 <0.0024 <0.0083 <0.019 ML33-4 20 3.08 42.6 8.03 4.28 0.818 <0.022 <0.029 <0.0024 <0.0083 <0.019 ML33-3 40.1 2.61 17.7 4.85 2.92 0.547 <0.022 <0.029 <0.0024 <0.0083 0.028 ML33-2 45 3.1 35.8 10.5 7.09 1.29 <0.022 <0.029 <0.0024 <0.0083 <0.019 ML33-1 33.3 1.71 3.08 1.67 0.0856 0.0197 0.029 <0.028 <0.0024 <0.0083 <0.019 ML33-0 25.1 1.23 3.47 3.16 <0.0034 0.0076 <0.030 <0.017 <0.0016 <0.0071 <0.0015 ML34-10 23.3 1.8 10.6 1.62 0.026 0.0221 <0.030 <0.020 0.0044 0.013 <0.0014 ML34-9 20.4 1.94 14 3.47 0.0956 0.0613 <0.030 <0.020 0.0023 <0.011 <0.0014 ML34-8 17 1.54 12.4 3.76 0.513 0.194 <0.030 <0.020 <0.0019 <0.011 <0.0014 

TABLE D 3. December 1998 Dissolved Metal Concentrations Analyzed at ManTech

0.45 μm filtered samples, all concentrations in mg/L

Sample ID Na K Ca Mg Fe Mn Al As Cr Ni Zn 
116

ML34-7DUP 17.5 2.31 22.6 8.22 3.89 0.748 <0.030 <0.020 <0.0019 <0.011 <0.0014 <ML34-7 17.6 2.32 23 8.35 3.92 0.76 <0.030 <0.020 <0.0019 <0.011 <0.0014 <ML34-6DUP 17.7 2.33 19.3 7.07 1.54 0.712 <0.022 <0.029 <0.0024 <0.0083 <0.019 <ML34-6 19.4 2.2 19.3 7.15 1.27 0.684 <0.022 <0.029 <0.0024 <0.0083 <0.019 <ML34-5 17.5 2.3 16.5 5.69 0.0956 0.0927 <0.022 <0.028 <0.0024 <0.0083 <0.019 <ML34-4 21.1 2.78 16.9 4.91 0.186 0.0524 <0.022 <0.028 <0.0024 0.0096 <0.019 <ML34-3 34.8 3.05 17.1 3.4 0.0198 0.0122 <0.022 <0.028 <0.0024 <0.0083 <0.019 <ML34-2 37.1 1.91 6.83 1.29 0.0106 <0.0040 0.104 <0.028 <0.0024 <0.0083 <0.019 <ML34-1 22.7 1.31 1.94 0.071 <0.0088 <0.0040 0.155 <0.028 <0.0024 <0.0083 <0.019 <ML34-0 25.2 1.22 1.88 <0.029 0.0278 <0.0040 <0.022 <0.028 <0.0024 <0.0083 <0.019 <ML35-10 17.3 5.45 16.8 2.44 2.45 0.505 <0.030 <0.020 <0.0019 <0.011 <0.0014 <ML35-9 13.4 2.72 9.43 1.53 5 0.283 <0.030 0.052 <0.0019 <0.011 <0.0014 <ML35-8 12.5 3.36 11.8 1.94 3.81 0.532 <0.030 0.038 <0.0019 <0.011 <0.0014 <ML35-6 14.2 2.88 9.71 2.12 0.097 0.646 <0.030 <0.020 <0.0019 <0.011 <0.0014 <ML35-4 17.5 1.54 1.19 0.558 0.0633 0.0323 <0.030 0.024 <0.0019 0.012 <0.0014 <ML35-2 29.4 0.78 2.81 1.57 0.186 0.0361 <0.030 <0.020 <0.0019 <0.011 <0.0014 <ML35-0 17.1 0.41 1.9 1.01 0.561 0.116 <0.030 <0.020 0.002 <0.011 <0.0014 <ML35-0DUP 17.3 0.39 1.92 1.04 0.561 0.122 <0.030 <0.020 <0.0019 <0.011 <0.0014 <Compliance Monitoring WellsMW13 168 2.34 16.4 10.4 0.0124 0.0903 <0.030 <0.020 3.13 0.017 0.0052 <MW18 135 1.79 11.4 9.83 2.27 0.723 <0.030 <0.020 0.0035 0.013 0.0086 <MW18DUP 135 1.2 11.4 9.94 2.31 0.709 <0.030 <0.020 0.002 <0.011 0.0033 <MW35D 17.6 1.54 15.6 5.8 6.33 0.588 <0.030 <0.020 0.0038 <0.011 0.0109 <MW35D DUP 17.8 1.24 15.7 5.83 6.33 0.613 <0.030 <0.020 0.002 0.014 0.0115 <MW38 17.6 2.08 9.96 4.96 0.0749 0.147 <0.030 <0.020 0.0036 <0.011 0.0757 <MW46 24.4 1 10.2 5.84 0.0708 0.314 <0.030 <0.020 <0.0019 <0.011 0.0017 <MW47 23.7 0.25 2.31 1.11 0.183 0.0607 0.002 <0.020 0.0023 <0.011 <0.0014 <MW48 59.5 1.03 10.6 7.03 0.0368 0.336 <0.030 <0.020 0.778 0.012 0.0055 <MW49 51.5 0.86 4.66 2.45 1.35 0.311 <0.030 <0.020 <0.0019 <0.011 0.0017 <MW50 33.6 0.82 5.33 3.11 0.453 0.169 <0.030 <0.020 0.0033 <0.011 0.0072 <MW52 36.8 0.64 2.47 1.48 0.0328 0.0538 <0.030 <0.020 <0.0019 <0.011 0.0563 <

TABLE D 3. December 1998 Dissolved Metal Concentrations Analyzed at ManTech

0.45 μm filtered samples, all concentrations in mg/L

Sample ID Na K Ca Mg Fe Mn Al As Cr Ni Zn 
117

Field BlanksFB 12/3 0.254 <0.23 <0.028 <0.029 0 <0.0029 <0.030 <0.020 0.0023 <0.011 <0.0014 <FB 12/4 <0.021 <0.23 <0.028 <0.029 0 <0.0029 <0.030 <0.020 0.0024 <0.011 <0.0014 <FB 12/5 <0.021 <0.23 <0.028 <0.029 0 <0.0029 <0.030 <0.020 <0.0019 <0.011 <0.0014 <FB 12/6 <0.021 0.28 <0.028 <0.029 0.0033 <0.0029 <0.030 <0.020 0.0024 <0.011 <0.0014 <FB 12/9 <0.021 <0.23 <0.028 <0.029 0 <0.0029 <0.030 <0.020 <0.0019 <0.011 <0.0014 <FB 12/10 <0.021 <0.23 <0.028 <0.029 0.0034 <0.0029 <0.030 <0.020 <0.0019 <0.011 <0.0014 <ML31 BLANK** 0.415 <0.23 <0.028 <0.029 0.0034 <0.0029 <0.030 <0.020 <0.0019 <0.011 <0.0014 <ML32 BLANK** 1.3 <0.23 <0.028 <0.029 0 <0.0029 <0.030 <0.020 0.0024 <0.011 <0.0014 <ML33 BLANK** 1.55 <0.23 <0.028 <0.029 0.0167 <0.0029 <0.030 <0.020 <0.0019 0.016 <0.0014 <

TABLE D 3. December 1998 Dissolved Metal Concentrations Analyzed at ManTech

0.45 μm filtered samples, all concentrations in mg/L

Sample ID Na K Ca Mg Fe Mn Al As Cr Ni Zn 
118

Well # TOC Cl SO4 NO2(N) NO3(N) Well # TOC Cl SO4 NO2(N) NO3(N)

mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L

ML11-0 0.71 48.9 23.5 <.05 1.55 ML15-0 1.27 51 17 <.05 0.36

ML11-1 1.58 69.1 44 <.05 1.55 ML15-1 0.572 69.7 5.25 <.05 <.05

ML11-2 1.35 55.2 46.1 <.05 1.03 ML15-2 0.965 105 13.9 <.05 <.05

ML11-3 2.04 93.5 65.8 <.05 1.79 ML15-3 3.48 31.4 <.5 <.05 <.05

ML11-4 2.94 111 100 0.07 2.74 ML15-4 1.96 13.9 <.5 <.05 <.05

ML11-5 2.01 61.4 40.1 <.05 1.49 ML15-5 0.585 16.3 10.6 <.05 <.05

ML11-6 1.53 62.4 43.2 <.05 1.48 ML15-6 1.74 25.8 18.2 <.05 <.05

ML11-7 1.78 36.1 22.7 <.05 0.65 ML15-7 4.01 39.3 55.8 <.05 <.05

ML11-8 1.86 24.3 13.2 <0.05 0.07 ML15-8 3.72 26.4 37.4 <.05 <.05

ML11-9 2.47 15.7 6.02 <.05 <0.05 ML15-9 2.19 3.51 2.17 <.05 0.26

ML11-10 2.06 16.5 18.1 <.05 0.1 ML15-10 2.33 3.67 6.82 0.07 1

ML12-1 24.6 45.1 50.1 0.05 0.91 ML31-0 3.04 13.4 4.23 <.05 1.4

ML12-2 2.8 63.7 71.9 0.05 0.98 ML31-1 0.726 18.5 20.2 <.05 1.02

ML12-3 3.37 98.8 104 0.05 2.02 ML31-2 2.22 17.9 29.8 <.05 0.74

ML12-4 2.51 82.6 74.7 0.05 2.43 ML31-3 1.25 13.7 29.4 <.05 0.96

ML12-5 3.47 31.7 11.2 <.05 <.05 ML31-4 1.49 28.8 38.8 <.05 1.43

ML12-6 3.47 9.82 1.79 <.05 <.05 ML31-5 2.02 86.4 47.8 0.09 3.09

ML12-7 5.04 6.87 2.36 <.05 <.05 ML31-6 1.64 77.3 21 <.05 1.33

ML12-8 7 6.33 4.48 <.05 <.05 ML31-7 1.77 69 20.5 0.05 1.06

ML12-9 6.15 4.97 5.68 <.05 <.05 ML31-8 1.2 45.6 16.1 0.05 0.48

ML12-10 2.96 3.77 11.2 <.05 0.23 ML31-9 1.06 16 4.91 <.05 <.05

ML31-10 0.842 17.7 15.5 <.05 0.33

ML13-0 6.27 51.5 <.5 <.05 <.05 ML32-0 2.25 18.4 7.91 <.05 1.13

ML13-1 3.89 95.7 17.1 <.05 <.05 ML32-1 1.02 24.3 27.6 <.05 1.03

ML13-2 5.01 56.9 6.25 <.05 <.05 ML32-2 1.16 29.2 32 <.05 1.13

ML13-3 6.06 13.5 2.23 <.05 <.05 ML32-3 2.13 85.2 59.4 0.07 3.84

ML13-4 6.28 10.7 <.5 <.05 <.05 ML32-4 1.95 112 62.8 0.06 2.87

ML13-5 2.91 7.34 <.5 <.05 <.05 ML32-5 2.1 67.3 40.7 <.05 1.66

ML13-6 2.48 6.38 <.5 <.05 <.05 ML32-6 1.53 8.83 9.32 <.05 <.05

ML13-7 1.93 5.8 <.5 <.05 <.05 ML32-7 1.45 8.27 8.46 <.05 <.05

ML13-8 1.07 5.29 <.5 <.05 <.05 ML32-8 1.41 7.61 9 <.05 0.2

ML13-9 0.673 3.41 2.9 <.05 <.05 ML32-9 0.512 5.3 5.1 <.05 0.36

ML13-10 2.04 5.03 <.5 <.05 <.05 ML32-10 0.23 6.88 7.52 <.05 0.42

ML14-0 6.99 59.5 9.03 <.05 <.05 ML33-0 0.795 21.6 <.5 <.05 <.05

ML14-1 6.81 56.4 <.5 <.05 <.05 ML33-1 3.04 37.4 <.5 <.05 <.05

ML14-2 6.16 24.3 <.5 <.05 <.05 ML33-2 6.44 69.1 9.73 <.05 <.05

ML14-3 5.17 15.5 <.5 <.05 <.05 ML33-3 5.28 39.9 5.76 <.05 <.05

ML14-4 3.95 12 <.5 <.05 <.05 ML33-4 3.57 59 2.92 <.05 <.05

ML14-5 4.08 8.93 <.5 <.05 <.05 ML33-5 5.07 29.9 2.37 <.05 <.05

ML14-6 3.07 7.97 1.12 <.05 <.05 ML33-6 2.6 13.1 5.28 <.05 <.05

ML14-7 3.5 7.06 <.5 <.05 <.05 ML33-7 1.32 5.21 10.5 <.05 <.16

ML14-8 3.31 5.97 <.5 <.05 <.05 ML33-8 0.497 8.28 8.57 <.05 0.26

ML14-9 2.27 4.31 <.5 0.06 0.08 ML33-9 0.743 14.8 8.88 <.05 0.28

ML14-10 1.06 3.14 2.09 0.07 0.07 ML33-10 0.933 17.3 13.5 0.07 0.3

TABLE E-1: Nov. 1996 Anion Concentrations Analyzed at ManTech.

Appendix E Lab Analysis Results (Anions)

(Unfiltered samples)
119

ML34-0 3.3 18.8 1.79 <.05 <.05 ML35-0 1.73 23.9 2.96 <0.05 0.19

ML34-1 2.25 62.8 <.5 <.05 <.05 ML35-1 0.851 18.1 <.5 <0.05 <0.05

ML34-2 3.03 69.8 3.74 <.05 <.05 ML35-2 4.41 23 <.5 <0.05 <0.05

ML34-3 3.11 80.1 0.69 <.05 <.05 ML35-3 3.41 78.5 <.5 <0.05 <0.05

ML34-4 2.69 50.7 <.5 <.05 <.05 ML35-4 2.74 95.1 <.5 <0.05 <0.05

ML34-5 3.21 42.5 0.78 <.05 <.05 ML35-5 1.35 87.4 1.54 <0.05 <0.05

ML34-6 3.03 39.2 1.62 <.05 <.05 ML35-6 0.486 32.6 7.46 <.5 <0.05

ML34-7 2.41 28.7 1.42 <.05 <.05 ML35-7 0.743 19.4 8.11 <0.05 <0.05

ML34-8 1.58 22.3 1.48 <.05 <.05 ML35-8 1.62 15.5 4.91 <0.05 <0.05

ML34-9 2.48 12.3 3.9 0.07 0.11 ML35-9 1.7 8.99 11.9 0.07 <0.05

ML34-10 1.88 12.1 16 0.14 0.66 ML35-10 3.74 182 18.5 0.09 1.05

ML21-1 6.7 15 18.3 0.06 0.73 ML25-1 1.05 5.32 3.25 <.05 <.05

ML21-2 0.642 20.8 31.5 <.05 0.72 ML25-2 3.48 10.3 4.59 <.05 <.05

ML21-3 1.49 29.9 50.9 <.05 0.67 ML25-3 2.95 82.8 <.5 <.05 <.05

ML21-4 1.1 82.6 90.1 <.05 2.86 ML25-4 3.63 73.6 5.82 <.05 <.05

ML21-5 2.74 143 138 0.13 5.47 ML25-5 4.34 117 6.73 <.05 <.05

ML21-6 3.69 70.3 31.1 <.05 1.67 ML25-6 6.08 66.6 <.5 <.05 <.05

ML21-7 1.64 26.1 8.07 <.05 0.23 ML25-7 1.6 6.97 5.5 <.05 0.13

ML22-1 2.16 13.7 9.77 <.05 0.94

ML22-2 0.745 32.6 <.5 <.05 <.05

ML22-2A 2.34 28 18 <.05 0.58

ML22-3 1.19 110 4.08 <.05 <.05

ML22-4 1.86 26.7 <.5 <.05 <.05

ML23-1 3.3 38 <.5 <.05 <.05

ML23-2 2.07 67.6 14.6 <.05 <.05

ML23-3 14.1 116 18.8 <.05 <.05

ML23-5 7.66 9.86 11.9 <.05 <.05

ML24-1 1.46 48.3 3.2 <.05 <.05

ML24-2 1.42 66.3 <.5 <.05 <.05

ML24-3 1.46 107 18.3 <.05 <.05

ML24-4 3.05 29.2 <.5 <.05 <.05

ML24-5 1.4 13.9 <.5 <.05 <.05

ML24-6 2.07 12.2 <.5 <.05 <.05

ML24-7 3.03 14.3 <.5 <.05 <.05

Well # TOC Cl SO4 NO2(N) NO3(N) Well # TOC Cl SO4 NO2(N) NO3(N)

mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L

TABLE E-1: Nov. 1996 Anion Concentrations Aanalyzed at ManTech (unfiltered)
120

Well # TOC Cl SO4 NO2(N) NO3(N) Well # TOC Cl SO4 NO2(N) NO3(N)

mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L

ML11-0 4.57 37.2 19.3 0.05 1.14 ML15-0 <.4 47.4 14.9 0.05 0.16

ML11-1 1.66 53.0 42.5 0.05 1.19 ML15-1 0.621 54.8 0.5 0.05 0.05

ML11-2 14.8 56.5 53.9 0.05 0.78 ML15-2 3.66 57.6 0.5 0.05 0.05

ML11-3 9.94 55.4 52.4 0.05 2.25 ML15-3 2.67 28.1 0.5 0.05 0.05

ML11-4 3.59 123 93.5 0.05 2.60 ML15-4 1.82 6.66 0.5 0.05 0.05

ML11-5 1.84 58.1 47.6 0.05 1.51 ML15-5 2.8 4.36 4.98 0.05 0.05

ML11-6 2.23 32.4 22.8 0.05 0.60 ML15-6 2.71 8.44 10.1 0.05 0.05

ML11-7 2.28 1.01 1.38 0.05 0.05 ML15-7 1.09 3.96 5.75 0.05 0.05

ML11-8 2.48 8.08 12.8 0.05 0.05 ML15-8 1.02 2.48 3.60 0.05 0.09

ML11-9 1.74 7.69 12.7 0.05 0.05 ML15-9 4.44 2.28 4.32 0.05 0.25

ML11-10 1.97 6.33 18.4 0.05 0.05 ML15-10 0.929 3.25 6.66 0.05 0.55

ML12-1 22.2 33.2 35.2 0.05 0.63 ML31-0 <.4 12.4 3.38 0.05 1.31

ML12-2 3.57 93.6 96.3 0.05 1.33 ML31-1 10.1 17.6 24.2 0.05 0.89

ML12-3 30.3 117 105 0.05 2.39 ML31-2 0.928 17.8 29.2 0.05 0.72

ML12-4 6.73 99.3 79.4 0.05 1.59 ML31-3 3.78 13.8 31 0.05 0.61

ML12-5 3.50 36.2 14.7 0.05 0.05 ML31-4 1.19 82.5 33.6 0.05 5.71

ML12-6 5.96 3.70 3.61 0.05 0.05 ML31-5 1.95 151 64 0.05 8.35

ML12-7 8.78 3.29 5.47 0.05 0.08 ML31-6 12.8 92.3 28.8 0.05 2.13

ML12-8 4.18 2.89 7.33 0.05 0.09 ML31-7 2.02 62.6 20.3 0.05 1.11

ML12-9 2.32 3.56 6.94 0.05 0.33 ML31-8 1.15 18.7 14.8 0.05 0.05

ML12-10 1.17 4.07 7.19 0.05 0.55 ML31-9 0.94 14.4 8.21 0.05 0.05

ML31-10 0.493 11.8 18.3 0.05 0.28

ML13-0 26.8 37.0 0.5 0.05 0.05 ML32-0 1.70 13.3 3.24 0.05 1.38

ML13-1 8.74 66.2 1.38 0.05 0.05 ML32-1 0.97 17.7 21.9 0.05 1.00

ML13-2 1.3 54.3 0.5 0.05 0.05 ML32-2 12.5 30.3 0.05 0.47

ML13-3 1.15 25.5 0.5 0.05 0.05 ML32-3 12.6 148 102 0.05 8.04

ML13-4 1.76 6.85 0.5 0.05 0.05 ML32-4 1.9 124 45.2 0.05 4.15

ML13-5 2.38 3.54 0.5 0.05 0.05 ML32-5 2.34 71.8 28.7 0.05 2.09

ML13-6 1.15 3.65 0.5 0.05 0.05 ML32-6 0.722 12.4 8.69 0.05 0.05

ML13-7 1.31 4.37 0.5 0.05 0.05 ML32-7 1.63 12.6 7.31 0.05 0.05

ML13-8 1.39 4.00 0.5 0.05 0.05 ML32-8 1.75 18.6 24.6 0.05 0.13

ML13-9 1.51 4.39 0.5 0.05 0.05 ML32-9 15.1 14.1 10.2 0.05 1.33

ML13-10 2.91 4.7 0.5 0.05 0.05 ML32-10 0.765 8.81 12.2 0.05 1.04

ML14-0 5.15 42.0 0.5 0.05 0.05 ML33-0 3.48 19.3 0.5 0.05 0.05

ML14-1 2.41 55.8 0.5 0.05 0.05 ML33-1 3.38 97.4 15.6 0.05 0.05

ML14-2 1.41 15.2 0.5 0.05 0.05 ML33-2 16.8 114 860* 0.05 0.05

ML14-3 1.98 12.0 0.5 0.05 0.05 ML33-3 2.93 67.9 13.7 0.05 0.05

ML14-4 1.25 3.67 0.5 0.05 0.05 ML33-4 11.5 15.1 4.86 0.05 0.05

ML14-5 2.26 3.84 0.5 0.05 0.05 ML33-5 2.11 32.7 8.73 0.05 0.05

ML14-6 3.01 3.87 0.5 0.05 0.05 ML33-6 1.26 14.8 9.23 0.05 0.05

ML14-7 3.43 3.22 0.5 0.05 0.05 ML33-7 1.46 17.2 16.6 0.05 0.05

ML14-8 5.27 3.41 0.5 0.05 0.05 ML33-8 0.998 14.1 13.7 0.05 0.05

ML14-9 2.29 3.45 0.5 0.05 0.05 ML33-9 0.96 11.3 7.09 0.05 0.21

ML14-10 2.29 2.71 1.08 0.05 0.09 ML33-10 4.66 10.1 5.88 0.05 0.10

TABLE E-2: Feb. 1997 Anion Concentrations Analyzed at ManTech (unfiltered)
121

ML34-0 0.476 14.6 0.5 0.05 0.05 ML35-0 <.4 15.1 2.97 0.05 0.05

ML34-1 18.7 78.2 12.1 0.05 0.05 ML35-1 1.63 16.8 0.5 0.05 0.05

ML34-2 2.57 96.7 3.82 0.05 0.05 ML35-2 1.53 15.5 0.5 0.05 0.05

ML34-3 2.21 97.3 0.5 0.05 0.05 ML35-3 1.3 77.6 0.5 0.05 0.05

ML34-4 5.69 93.5 0.5 0.05 0.05 ML35-4 8.4 82.3 0.5 0.05 0.05

ML34-5 4.08 88.6 0.5 0.05 0.05 ML35-5 1.16 64.7 1.78 0.05 0.05

ML34-6 1.86 46.3 0.5 0.05 0.05 ML35-6 0.888 35.5 5.95 0.05 0.05

ML34-7 5.51 49.7 0.5 0.05 0.05 ML35-7 1.17 23.7 5.26 0.05 0.05

ML34-8 5.67 27.0 0.5 0.05 0.05 ML35-8 1.47 16.8 5.31 0.05 0.05

ML34-9 1.24 27.3 0.5 0.05 0.05 ML35-9 2.16 15.8 4.17 0.05 0.05

ML34-10 1.86 26.3 0.5 0.05 0.05 ML35-10 5.29 17.9 1.91 0.05 0.05

ML21-1 0.566 33.1 35.3 0.05 0.82 MW13 13.7

ML21-2 11.7 20.1 30.6 0.05 0.72 MW18 3.54

ML21-3 7.64 17.6 25.7 0.05 0.43 MW35D 15.4

ML21-4 3.02 112 113 0.05 3.37 MW38 0.532

ML21-5 3.9 133 131 0.05 4.31 MW46 <.4

ML21-6 2.06 64.7 25.3 0.05 1.17 MW47 0.921

ML21-7 36.7 19.5 3.98 0.05 0.05 MW48 1.5

ML22-2 3.45 24.3 0.5 0.05 0.05 MW49 1.08

ML22-3 9.82 95.1 4.36 0.05 0.05 MW50 0.970

ML22-4 4.49 20.4 0.5 0.05 0.05

ML23-1 3.16 29.5 0.5 0.05 0.05

ML23-2 4.92 50.9 0.55 0.05 0.05

ML23-3 1.99 75.4 2.35 0.05 0.05

ML23-4 4.16 38.3 0.5 0.05 0.05

ML24-1 5.6 20.2 0.5 0.05 0.05

ML24-2 8.81 33.9 0.5 0.05 0.05

ML24-3 3.25 94.5 15.9 0.05 0.05

ML24-4 4.27 21.5 0.5 0.05 0.05

ML24-5 4.61 17.7 0.5 0.05 0.05

ML24-6 3.91 11.9 0.5 0.05 0.05

ML24-7 4.39 14.6 0.5 0.05 0.05

ML25-1 0.87 61.0 1.51 0.05 0.05

ML25-2 4.08 4.12 9.48 0.05 0.05

ML25-3 8.12 33.5 0.5 0.05 0.05

ML25-4 3.03 58.0 2.47 0.05 0.05

ML25-5 3.31 73.3 1.53 0.05 0.05

ML25-6 1.68 84.4 0.70 0.05 0.05

ML25-7 0.827 4.96 10.3 0.05 0.05

Well # TOC Cl SO4 NO2(N) NO3(N) Well # TOC Cl SO4 NO2(N) NO3(N)

mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L

TABLE E-2: Feb. 1997 Anion Concentrations Analyzed at ManTech (unfiltered)
122

Piezo# TOC Cl SO4 NO2(N) NO3(N) Piezo# TOC Cl SO4 NO2(N) NO3(N)

ML 11-10 2.50 6.73 1.93 <0.1 <0.1 ML 25-7 1.50 32.4 7.69 <0.1 <0.1

ML 11-9 2.70 6.43 6.29 <0.1 <0.1 ML 25-6 0.849 15.2 1.16 <0.1 <0.1

ML 11-8 2.73 8.04 13.1 <0.1 <0.1 ML 25-5 2.03 45.1 0.38 <0.1 <0.1

ML 11-7 2.22 9.25 17.1 <0.1 <0.1 ML 25-4 2.75 39.3 <0.1 <0.1 <0.1

ML 11-6 2.22 39.8 40.9 <0.1 0.53 ML 25-3 48.1 <0.1 <0.1 <0.1

ML 11-5 1.64 39.2 42.35 <0.1 0.46 ML 25-2 D 2.08 43.9 0.59 <0.1 <0.1

ML 11-4 2.60 100.0 97.4 <0.1 3.39 ML 25-2 1.34 44.1 0.54 <0.1 <0.1

ML 11-3 3.80 106.0 96.1 <0.1 2.28 ML 25-1 1.17 46.6 <0.1 <0.1 <0.1

ML 11-2 2.34 67.2 50.7 <0.1 0.99

ML 11-1 3.08 42.1 41.4 <0.1 0.72 ML 24-7 2.93 13.1 <0.1 <0.1 <0.1

ML 11-0 1.29 57.1 35.3 <0.1 1.61 ML 24-6 2.12 15.0 <0.1 <0.1 <0.1

ML 24-5 2.030 24.3 <0.1 <0.1 <0.1

ML12-10 1.67 19.25 57.05 <0.1 2.65 ML 24-4 1.70 28.2 <0.1 <0.1 <0.1

ML12-9 2.28 29.1 45.7 <0.1 <0.1 ML 24-3 D 47.7 <0.1 <0.1 <0.1

ML12-8 3.01 18.9 17.1 <0.1 <0.1 ML 24-3 2.05 47.3 <0.1 <0.1 <0.1

ML12-7 3.45 5.52 2.15 <0.1 <0.1 ML24-2 1.72 44.2 <0.1 <0.1 <0.1

ML12-6 2.58 4.49 7.13 <0.1 0.10 ML24-1 1.86 42.6 <0.1 <0.1 <0.1

ML 12-5 2.98 69.0 58.2 <0.1 0.27

ML 12-4 2.47 95.1 93.2 <0.1 1.84 ML23.5-8 1.68 11.8 <0.1 <0.1 <0.1

ML 12-3 2.72 95.9 95.7 <0.1 1.89 ML23.5-7 2.04 10.5 <0.1 <0.1 <0.1

ML 12-2 12.95 90.3 76.7 <0.1 1.47 ML23.5-6 1.85 9.04 <0.1 <0.1 <0.1

ML 12-1 1.57 63.5 50.3 <0.1 0.92 ML23.5-5 2.08 23.6 <0.1 <0.1 <0.1

ML23.5-4 2.01 27.9 <0.1 <0.1 <0.1

ML 13-10 1.21 14.8 13.4 <0.1 2.32 ML23.5-3 2.16 33.5 <0.1 <0.1 <0.1

ML 13-9 0.664 16.6 <0.1 <0.1 <0.1 ML23.5-2 2.17 33.1 1.02 <0.1 <0.1

ML 13-8 0.794 6.36 <0.1 <0.1 <0.1 ML23.5-1 1.82 32.85 <0.1 <0.1 <0.1

ML 13-7 0.720 6.83 <0.1 <0.1 <0.1 ML23.5-0 1.60 27.9 <0.1 <0.1 <0.1

ML 13-6 0.881 8.93 <0.1 <0.1 <0.1

ML 13-5 1.30 6.81 <0.1 <0.1 <0.1 ML 22.5-8 1.67 33.6 7.00 <0.1 <0.1

ML 13-4 0.950 11.0 <0.1 <0.1 <0.1 ML 22.5-7 1.66 35.8 7.14 <0.1 <0.1

ML 13-3 1.02 33.65 <0.1 <0.1 <0.1 ML 22.5-6 1.75 37.3 6.91 <0.1 <0.1

ML 13-2 1.59 42.9 1.69 <0.1 <0.1 ML 22.5-5 1.58 37.1 5.89 <0.1 <0.1

ML 13-1 2.03 60.6 2.96 <0.1 <0.1 ML 22.5-4 1.99 36.5 10.7 <0.1 <0.1

ML 13-0 1.83 48.0 <.1 <0.1 <0.1 ML 22.5-3 4.23 35.3 15.0 <0.1 <0.1

ML 22.5-2 1.40 27.7 32.6 <0.1 0.27

ML 14-10 0.618 10.7 <0.1 <0.1 <0.1 ML 22.5-1 1.25 20.5 29.7 <0.1 0.27

ML 14-9 0.589 2.92 <0.1 <0.1 <0.1 ML 22.5-0 2.10 32.0 2.1 <0.1 <0.1

ML 14-8 1.09 2.36 <0.1 <0.1 <0.1

ML 14-7 9:30 2.01 3.84 <0.1 <0.1 <0.1 ML 21-7 1.93 36.0 9.61 <0.1 0.11

ML 14-7 10:10 6.02 <0.1 <0.1 <0.1 ML 21-6 2.30 56.1 30.4 <0.1 0.53

ML 14-6 1.46 4.31 <0.1 <0.1 <0.1 ML 21-5 2.27 79.65 86.6 <0.1 2.4

ML 14-4 0.926 10.2 <0.1 <0.1 <0.1 ML 21-4 3.38 38.0 64.6 <0.1 0.98

ML 14-3 0.863 19.9 <0.1 <0.1 <0.1 ML 21-3 D 20.4 43.4 <0.1 0.35

ML 14-2 0.893 31.6 <0.1 <0.1 <0.1 ML 21-3 1.74 20.4 43.5 <0.1 0.33

ML 14-1 1.91 58.9 <0.1 <0.1 <0.1 ML 21-2 0.984 16.0 29.2 <0.1 0.46

ML 14-0 3.94 69.1 <0.1 <0.1 <0.1 ML 21-1 0.752 25.45 18.0 <0.1 1.59

TABLE E-3. December 1998 Anion Concentrations Analyzed at ManTech

Unfiltered samples, concentrations in mg/L
123

ML 15-10 0.989 6.71 39.7 <0.1 0.35

ML 15-9 1.11 6.54 15.0 <0.1 <0.1

ML 15-8 1.04 5.44 12.9 <0.1 <0.1

ML 15-7 1.81 5.19 12.5 <0.1 <0.1

ML 15-6 1.80 3.68 5.91 <0.1 <0.1

ML 15-5 1.08 4.24 1.41 <0.1 <0.1

ML 15-4 1.22 5.88 <0.1 <0.1 <0.1

ML 15-3 1.06 16.6 <0.1 <0.1 <0.1

ML 15-2 1.49 51.3 <0.1 <0.1 <0.1

ML 15-1 1.32 65.6 <0.1 <0.1 <0.1

ML 15-0 0.946 60.9 3.43 <0.1 <0.1

Monitoring Wells

ML 31-10 2.63 19.9 7.53 <0.1 <0.1

ML 31-9 3.15 25.9 3.82 <0.1 <0.1 MW 13 4.45 129.0 137.0 <0.1 2.96

ML 31-8 1.50 27.4 16.0 <0.1 <0.1 MW 18 4.19 98.2 98.9 <0.1 <0.1

ML 31-7 3.61 75.0 33.5 <0.1 1.46 MW 18 D 110.0 111 <0.1 <0.1

ML 31-6 1.83 86.2 40.4 <0.1 1.97 MW 35D 0.906 22.0 0.51 <0.1 <0.1

ML 31-5 2.31 131.0 73.2 <0.1 5.31 MW 38 0.923 10.7 24.3 <0.1 0.83

ML 31-4 1.64 64.5 42.7 <0.1 3.72 MW 46 0.957 13.2 11.4 <0.1 <0.1

ML 31-3D 3.61 15.7 31.2 <0.1 0.86 MW 46 D 13.3 11.4 <0.1 <0.1

ML 31-3 1.79 15.9 30.5 <0.1 0.87 MW 47 1.16 25.9 <.1 <0.1 <0.1

ML 31-1 1.49 16.2 31.4 <0.1 0.90 MW 48 1.82 50.0 48.8 <0.1 1.66

ML 31-0 0.812 13.6 10.6 <0.1 1.41 MW 49 1.72 56.1 0.39 <0.1 <0.1

MW 50 1.19 39.9 4.57 <0.1 <0.1

ML 32-10 1.44 19.9 53.1 <0.1 0.96 MW 52 1.04 35.9 5.44 <0.1 <0.1

ML 32-9 0.903 7.24 25.2 <0.1 1.61

ML 32-8 1.82 18.4 6.58 <0.1 <0.1

ML 32-7 2.63 22.0 3.44 <0.1 <0.1 Field blanks

ML 32-6 2.48 43.9 12.0 <0.1 <0.1

ML 32-5 7.27 90.9 31.2 <0.1 1.64 12-1 TRIP B 0.395 <0.1 <0.1 <0.1 <0.1

ML 32-4 1.95 92.9 48.1 <0.1 4.45 F.B. 12-3 0.430 <0.1 <0.1 <0.1 <0.1

ML 32-3 1.77 77.15 33.3 <0.1 2.34 F.B. 12-4 0.335 <0.1 <0.1 <0.1 <0.1

ML 32-2 1.19 15.0 30.9 <0.1 0.61 F.B. 12-5 0.471 <0.1 <0.1 <0.1 <0.1

ML 32-1 1.40 13.2 28.5 <0.1 0.45 F.B. 12-6 0.293 <0.1 <0.1 <0.1 <0.1

ML 32-0 1.82 13.6 11.7 <0.1 0.75 F.B. 12-9 0.291 <0.1 <0.1 <0.1 <0.1

F.B.12-10 0.235 <0.1 <0.1 <0.1 <0.1

Piezo# TOC Cl SO4 NO2(N) NO3(N) Piezo# TOC Cl SO4 NO2(N) NO3(N)

TABLE E-3. December 1998 Anion Concentrations Analyzed at ManTech

Unfiltered samples, concentrations in mg/L
124

TABLE E-3. December 1998 Anion Concentrations Analyzed at ManTech

Unfiltered samples, concentrations in mg/L

ML 33-10 3.31 28.8 13.0 <0.1 <0.1

ML 33-9 1.35 23.4 16.7 <0.1 <0.1 D = Duplicate

ML 33-8 1.21 8.22 11.6 <0.1 <0.1

ML 33-7 1.79 15.4 11.1 <0.1 <0.1

ML 33-6 1.83 17.3 2.28 <0.1 <0.1

ML 33-5 2.13 38.5 0.26 <0.1 <0.1

ML 33-4 1.78 33.0 <0.1 <0.1 <0.1

ML 33-3 2.08 40.3 1.26 <0.1 <0.1

ML 33-2 2.14 47.6 2.79 <0.1 <0.1

ML 33-1 2.52 24.6 <0.1 <0.1 <0.1

ML 33-0 1.23 13.4 <0.1 <0.1 <0.1

ML 34-10 1.66 22.6 0.53 <0.1 <0.1

ML 34-9 1.21 19.7 1.83 <0.1 <0.1

ML 34-8 1.60 11.4 <0.1 <0.1 <0.1

ML 34-7D 1.68 14.5 <0.1 <0.1 <0.1

ML 34-7 1.81 14.2 <0.1 <0.1 <0.1

ML 34-6 1.77 13.9 <0.1 <0.1 <0.1

ML 34-5 3.79 19.8 <0.1 <0.1 <0.1

ML 34-4 1.42 30.0 <0.1 <0.1 <0.1

ML 34-3 1.75 50.6 <0.1 <0.1 <0.1

ML 34-2 2.11 41.3 <0.1 <0.1 <0.1

ML 34-1 1.28 16.7 <0.1 <0.1 <0.1

ML 34-0 0.956 20.3 <0.1 <0.1 <0.1

ML 35-10 1.32 12.0 9.77 <0.1 3.97

ML 35-9 2.00 16.9 4.75 <0.1 1.25

ML 35-6 1.99 23.4 5.31 <0.1 <0.1

ML 35-4 1.29 23.2 0.48 <0.1 0.43

ML 35-2 1.63 26.8 <0.1 <0.1 <0.1

ML 35-1 1.11 21.95 <0.1 <0.1 <0.1

ML 35-0 D 0.998 21.5 1.04 <0.1 <0.1

ML 35-0 0.835 21.6 1.09 <0.1 <0.1

Piezo# TOC Cl SO4 NO2(N) NO3(N) Piezo# TOC Cl SO4 NO2(N) NO3(N)
125

Appendix F Pump Test Data

TABLE F-1. Hydraulic conductivities calculated from pump tests (UW)

Point Date Pump rate ∆H K K calculated by:

(mL/min)(cm) (m/d)

21-1 Nov-96 300 106.7 ± 0.5 1.3 - 1.4 Constant head Range in hydraulic conductivity calculated

21-2 Feb-97 13015.9 ± 0.5 3.8 - 4.0Constant head using low and high static head difference

21-3 Nov-96 260125.6 ± 0.5 1.0- 1.0Constant head (I.e. Low value is measured head - error, 

21-4 Feb-97 135 11.3 ± 0.5 5.5 - 6.0 Constant head and high value is measured head+error)

21-5 #1 Nov-96 380 22.1 ± 0.5 8.1 - 8.4 Constant head

21-5 #2 Nov-96 207 11.6 ± 0.5 8.2 - 8.9 Constant head Hvorslev constant head method:

21-5 #3 Sep-97 950 38 ± 0.5 11.8 - 12.1 Constant head (Hvorslev 1951)

21-6 Feb-97 13025.1 ± 0.5 2.4 - 2.5 Constant head

21-7 Nov-96 225 49 ± 0.5 2.2 - 2.2 Constant head Kh = q ln [mL/D + (1+(mL/D)2

)

0.5

 ]

22-1 Feb-97 132 na 0.2 Basic time lag 2 π L Hc

22-2A Feb-97 135 6.9 ± 0.5 8.7 - 10.1 Constant head

22-3 #1 Feb-97 690 3.3 ± 0.5 87.0 - 118.1 Constant head m= 1

22-3 #2 Sep-97 950 9 ± 0.5 47.9 - 53.6 Constant head L= 15.24 cm

22-4 Feb-97 13013.1 ± 0.5 4.6 - 4.9 Constant head D= 1.26 cm

22-5 Feb-97 146 na 0.0 Basic time lag Hc = ∆H

22-6 Feb-97 130na 0.1 Basic time lag

22-7 Feb-97 146 na 0.0 Basic time lag Hvorslev basic time lag method:

23-1 Nov-96 2401.4 ± 0.5 60.6 - 127.8 Constant head (Hvorslev 1951)

23-2 Feb-97 135 2.3 ± 0.5 23.1 - 36.0 Constant head

23-3 #1 Nov-96 140 0.8 ± 0.5 51.6 - 223.7 Constant head K = A/FTo

23-3 #2 Nov-96 690 2.8 ± 0.5 100.2 - 143.8 Constant head K = r

2

 ln L/R

23-3 #3 Sep-97 917 6.5 ± 0.5 62.8 - 73.3 Constant head 2 L To

23-5 Nov-96 825 2 ± 0.5 158.2 - 263.7 Constant head

23-6 Feb-97 1090 290 ± 0.5 1.8 - 1.8 Constant head

23-7 Nov-96 150na na Basic time lag To = Time lag 

24-1 #1 Feb-97 135 1.4 ± 0.5 34.1 - 71.9 Constant head F = theoretical shape factor

24-1 #2 Feb-97 690 2.2 ± 0.5 122.5 - 194.6 Constant head

24-2 Feb-97 135 0.6 ± 0.5 58.8 - 647.2 Constant head

24-3 #1 Feb-97 690 24.3 ± 0.5 13.3 - 13.9 Constant head Range in hydraulic conductivity calculated

24-3 #2 Sep-97 912 42.5 ± 0.5 10.2 - 10.4 Constant head using low and high static head difference

24-4 #1 Feb-97 135 14.5 ± 0.5 4.3 - 4.6 Constant head (I.e. Low value is measured head - error, 

24-4 #2 Feb-97 1090 89 ± 0.5 5.8 - 5.9 Constant head and high value is measured head+error)

24-5 Feb-97 69042 ± 0.5 7.8 - 8.0Constant head

24-5 4.4 Basic time lag Hvorslev constant head method:

24-6 #1 Feb-97 135 5.3 ± 0.5 11.2 - 13.5 Constant head (Hvorslev 1951)

24-6 #2 Feb-97 1090 24 ± 0.5 21.3 - 22.2 Constant head

24-7 #1 Feb-97 906 ± 0.5 6.6 - 7.8 Constant head Kh = q ln [mL/D + (1+(mL/D)2

)

0.5

 ]

24-7 #2 Feb-97 69063.1 ± 0.5 5.2 - 5.3 Constant head 2 π L Hc

24-7 #2 2.9 Basic time lag

25-1 Nov-96 27028.9 ± 0.5 4.4 - 4.6 Constant head m= 1

25-3 #1 Nov-96 567 17.5 ± 0.5 15.1 - 16.0 Constant head L= 15.24 cm

25-3 #2 Nov-96 335 10 ± 0.5 15.3 - 16.9 Constant head D= 1.26 cm

25-3 #3 Sep-97 887 36 ± 0.5 11.6 - 12.0 Constant head Hc = ∆H

25-4 #1 Feb-97 110 8 ± 0.5 6.2 - 7.0 Constant head

25-4 #2 Feb-97 880 55.5 ± 0.5 7.5 - 7.7 Constant head Hvorslev basic time lag method:

25-5 #1 Nov-96 292 23.7 ± 0.5 5.8 - 6.0 Constant head (Hvorslev 1951)

25-5 #2 Nov-96 540 63.7 ± 0.5 4.0 - 4.1 Constant head

25-6 #1 Feb-97 140 Constant head K = A/FTo

25-6 #2 Feb-97 787 45.5 ± 0.5 8.2 - 8.4 Constant head K = r

2

 ln L/R

25-7 Nov-96 275 71.2 ± 0.5 1.8 - 1.9 Constant head 2 L To

11-0Nov-96 350 40.3 ± 0.5 4.1 - 4.2 Constant head

15-0Nov-96 305 58.3 ± 0.5 2.5 - 2.5 Constant head

31-0 Nov-96 216 154.5 ± 0.5 0.7 - 0.7 Constant head To = Time lag 

35-0Nov-96 220 98 ± 0.5 1.1 - 1.1 Constant head F = theoretical shape factor
126

Point 35-0 Point 35-0 Point 31-0 Point 31-0 Point 25-1 Point 25-3 #1 Point 25-3 #2

Q=220 mL/min Q=0 Q=216 mL/min Q=0 Q=270 mL/min Q=570 mL/min Q=335 mL/min

11/21/96 11/21/96 11/21/96 11/21/96 11/21/96 11/21/96 11/21/96

Pumping Recovery Pumping Recovery Pump to constant head Pump to constant head Pump to constant head

TIME Depth TIME Depth TIME Depth TIME Depth TIME Depth TIME Depth TIME Depth

[s] [cm] [s] [cm] [s] [cm] [s] [cm] [s] [cm] [s] [cm] [s] [cm]

<0 138 1500236 <0141.3 960 295 <0126.9 <0125.9 <0125.9

3 1401502 230 3 150977 260 4 13090142.9 5 136

9 150 1507 220 8 160983 250 9 140120143 6 136

14 1601512 21013 170988 24025 150150143.1 8 135.9

20 1701517 20019 180995 23061 155 180143.1

26 180 1523 190 24 190 1002 220 150155.4 240143.2

34 1901531 180302001010210180155.5 360143.2

45 200 1542 170 37 210 1015 205 240 155.7 480 143.3

53 205 1550 165 46 220 1020 200 300 155.8 600 143.4

59 2101556 16054 2301026 195 360156 720143.3

69 215 1568 155 59 235 1030190420156

802201582 15075 2501036 185 480156.1

98 225 1608 145 84 255 1044 180540156

128 2301625 143 91 2601050175 570155.8

176 233 1636 142 103 265 1059 170 600(OFF) 155.8

206 234 1653 141 115 270 1071 165 602 150

420 235 1676 140132 275 1088 160609 140

690235.5 1768 139 153 2801108 155 626 130

1043 236 184 285 1135 150640128

232 2901164 147 660 127

295 294 1176 146

480296.8 1225 144

600 295.5 1350 142

900 295.8 1456 141.5

TABLE F-2. Drawdown-Time and Time to Recovery Data from Pump Tests 

Conducted by the University of Waterloo.
127

Point 25-5 #1 Point 25-5 #2 Point 25-7 Point 23-1 Point 23-3 #1 Point 23-3 #2 Point 23-5

Q=292 mL/min Q=540 mL/min Q=216 mL/min Q=235 mL/min Q=140 mL/min Q=690 mL/min Q=825 mL/min

11/21/96 11/21/96 11/21/96 11/21/96 11/21/96 11/21/96 11/21/96

Pump to constant head Pump to constant head Pump to constant head Pump to constant head Pump to constant head Pump to constant head Pump to constant head

TIME Depth TIME Depth TIME Depth TIME Depth TIME Depth TIME Depth TIME Depth

[s] [cm] [s] [cm] [s] [cm] [s] [cm] [s] [cm] [s] [cm] [s] [cm]

<0 124.8 <0124.8 <0128.4 <0132.4 <0133.1 <0133.2 <0126.5

1 1303 1303 13060133.6 60133.7 120136 60129

11 140 7 150 5 140120133.7 120133.8 240136 300128.6

26 145 12 1608 145 180133.8 240133.9 360136 480128.5

117 148 24 17030180240133.7

210148.5 42 175 38 185 300133.8

300 148.5 105 179.7 48 190 420 133.8

420148.5 240181.4 59 193

420183.5 68 195

600 184.3 84 197

780186.9 96 198

1200 187.5 180 199.3

1500 188.5 480 199.5

1560(OFF) 600 199.6

1562 180630(OFF)

1565 170634 190

1567 160638 180

1571 150643 170

1576 140649 160

1589 130658 150

1605 126 672 140

1635 125 682 135

690133

715 130

Point 23-7 Point 11-0 Point 21-1 Point 21-3 Point 21-5 #1 Point 21-5 #2 Point 21-7

Q=350 mL/min Q=300 mL/min Q=260 mL/min Q=207 mL/min Q=380 mL/min Q=225 mL/min

11/22/96 11/22/96 11/22/96 11/22/96 11/22/96 11/22/96 11/22/96

pump dry-Recovery Pump to constant head Pump to constant head Pump to constant head Pump to constant head Pump to constant head Pump to constant head

TIME Depth TIME Depth TIME Depth TIME Depth TIME Depth TIME Depth TIME Depth

[m:s] [cm] [s] [cm] [s] [cm] [s] [cm] [s] [cm] [s] [cm] [s] [cm]

<0 135.5 <0148.4 <0 152.4 <0152.5 <0153.6 <0153.8 <0152.7

pumped below screen 46 183.5 90242.2 60 241 60165.1 30175.7 30 189

recovery recorded 84 186.2 150247.3 120262.5 120165.1 90 175.9 90 200.6

1:47 340 210188.2 210248.5 180275.2 180165.2 150 176 150201.6

2:30 330 270188.2 270249.2 600277.2 240165.2 270 176 210201.6

3:16 320 330188.3 330249.9 840 278 330175.9 270201.1

4:06 310 750188.5 510251.7 960 279 330201.3

4:59 300 840188.6 570252.9 1380278.7 390201.7

5:58 290 1140188.7 810 256 1440278.1 420(OFF)

6:58 2801170(OFF) 1410259 1450(OFF) 421 200

8:04 270 1173 180 1800 259.1 1453 270 425 190

9:15 2601177 1701890(OFF) 1456 260431 180

10:31 250 1181 160 1892 250 1460 250 440 170

11:58 240 11901501907 2101464 240 447 165

13:31 2301913 2001470230 459 160

15:16 22019201901474 220 486 155

17:28 2101928 1801481 210

19:52 200 1942 170 1488 200

22:36 1901952 165 1497 190

25:59 1801968 1601509 180

30:12 170 2008 155 1526 170

36:11 1601558 160

46:11 1501603 155

75:40140
128

Point 24-1 #1 Point 24-1 #2 Point 24-3 Point 24-5 Point 24-7 #1 Point 24-7 #2 Point 22-3

Q=135 mL/min Q=690 mL/min Q=690 mL/min Q=690 mL/min Q=90 mL/min Q=690 mL/min Q=690 mL/min

2/28/97 2/28/97 2/28/97 2/28/97 2/28/97 2/28/97 2/28/97

pump dry-Recovery Pump to constant head Pump to constant head Pump to constant head Pump to constant head Pump to constant head Pump to constant head

TIME Depth TIME Depth TIME Depth TIME Depth TIME Depth TIME Depth TIME Depth

[m:s] [cm] [s] [cm] [s] [cm] [s] [cm] [s] [cm] [s] [cm] [s] [cm]

<0 128 <0129 <0133 <0132 <0133.9 <0133.9 <0 135

54 129.4 2 1301 135 33 1702 135 2 14040138.2

150129.4 58 131 9 155 53 171.5 5 137 7 160 85 138.3

180131.2 28 157 64 172 7 138 15 176 175 138.3

238 131.2 98 157.2 79 172.5 11 138.5 18 180225 138.3

175 157.3 117 173 16 139 26 190

170173.6 20 139.5 31 192

230173.8 100139.9 35 197

300 174 225 219.5

400 174 287 221

480(OFF) 174 367 224

485 170450226

487 150853(OFF) 229

490145 4 210

494 1406 200

501 137 7 190

508 136 70 180

514 135 73 170

521 134.5 77 160

530134 80 155

548 133.5 82 150

87 145

93 140

98 138

Point 22-1 Point 22-1 Point 22-5 Point 22-5 Point 22-7 Point 22-7 Point 21-2

Q=225 mL/min continued Q=146 mL/min continued Q=146 mL/min continued Q=130 mL/min

2/28/97 2/28/97 2/28/97 2/28/97

Pump 14 mins-Recovery Pumped continuously Recovery Pump-Recovery Recovery Pump to constant head

TIME Depth TIME Depth TIME Depth TIME Depth TIME Depth TIME Depth TIME Depth

[s] [cm] [s] [cm] [s] [cm] [s] [cm] [m:s] [cm] [s] [cm] [s] [cm]

<0 125 146 220<0135.8 232(OFF) 400<0134.5 4:25 350<0 143

595 350 165 210 5 140 521 372 8 1405:50339 30 159

840 (OFF) 357 186 200 11 150 338 371 14 150 6:06 337 60 160

13 340 212 19020160355 37021 1608:26 321 210159

18 335 244 18028 170369 369 28 1708:44 319 433 159

20330276 17036 180378 368 35 1809:04 317 650159

24 325 323 16044 190394 367 41 19011:31 303 720158.9

29 320 387 150 52 200 413 366 55 200 11:45 302 

32 315 505 140 61 210 433 365 1:02 210 11:55 301

37 310 66 220 453 364 1:09 220 12:08 300

41 305 76 230 511 362 1:15 230 22:05 261.5

46 300 85 240 671 354 1:22 240 22:30 260

51 295 93 2501058 345 2:06 25022:48 259

58 290 102 260 1594 332 2:14 330 23:06 258

66 280111 2701753 328 2:21 34023:32 257

72 285 119 2801821 326 2:30355 23:45 256

88 260128 2902679 307 2:36(OFF) 360 40:07 218

94 255 136 300 3382 293 3:00 358 40:33 217

100 250 146 310 3456 291 3:05 357 54:40 196

107 245 154 320 4393 272.5 3:12 356 55:32 195

115 240164 3305601 252 3:22 355 1:14:44 175

122 235 174 3407447 227 3:30354 1:15:07 174.7

129 2308341 217 3:38 353 1:43:40156.5

137 225 3:44 352 1:55:48 151
129

Point 25-2 Point 25-6 #1 Point 25-4 #1 Point 21-4 Point 21-6 Point 22-4 Point 22-2A

Q=855 mL/min Q=140 mL/min Q=110 mL/min Q=135 mL/min Q=130 mL/min Q=130 mL/min Q=135 mL/min

2/28/97 2/28/97 2/28/97 2/28/97 2/28/97 2/28/97 2/28/97

Pump-Recovery Pump to constant head Pump to constant head Pump to constant head Pump to constant head Pump and Recovery Pump to constant head

TIME Depth TIME Depth TIME Depth TIME Depth TIME Depth TIME Depth TIME Depth

[s] [cm] [s] [cm] [s] [cm] [s] [cm] [m:s] [cm] [s] [cm] [s] [cm]

<0 151.5 <0136 <0137 <0140.5 <0142.7 <0139 <0 136

8 200 5 14011 144 13 15022 159 10144 19 142.5

18 22018 144 295 144.5 24 151 34 163 24 149 50142.5

24 225 171 144 435 145 198 151.6 44 165 31 150170142.8

37 230239 133.9 280151.7 60166.5 51 152 308 142.9

100 233 295 133.9 355 151.8 81 167.5 108 152.5 360(OFF) 142.9

138 233 113 167.7 260152.1 363 140

175 233.2 140167.9 300(OFF) 152.1 373 136.5

236 235.2 Point 25-6 #2 Point 25-4 #2 305 167.6 309 146 387 136

265 235.5 Q=787 mL/min Q=880 mL/min 973 167.8 316 144

297 236 <0136 <0137 360139.5

436 234 2018021 191.6

515 236.4 114 181.2 159 191.8

722 236.5 165 181 235 192

782 236.4 209 181.4 361 192.5

840(OFF) 284 181.5 502 192.5

5 230353 181.5

7 20 0

12 180

15 170

19 165

23 160

30155

38 153

Point 22-6 Point 22-6 Point 23-2 Point 23-6 Point 24-2 Point 24-4 #1 Point 24-6 #1

Q=130 mL/min continued Q=135 mL/min Q=1090 mL/min Q=135 mL/min Q=135 mL/min Q=135 mL/min

2/28/97 2/28/97 2/28/97 2/28/97 2/28/97 2/28/97

Pump-Recovery Pump to constant head Pump-Recovery Pump to constant head Pump and Recovery Pump and Recovery

TIME Depth TIME Depth TIME Depth TIME Depth TIME Depth TIME Depth TIME Depth

[s] [cm] [s] [cm] [s] [cm] [s] [cm] [m:s] [cm] [s] [cm] [s] [cm]

<0 136 415 245 <0 141 <0 133 <0134.5 <0135.5 <0136.2

17 157 439 24022 143.5 14 228 46 135.5 9 140.5 7 141

50185 465 235 40143.6 102 423 87 135.5 37 149.5 23 141.5

61 192 487 23065 143.2 180(OFF) 423 390135.1 68 150135(OFF) 141.5

71 199 560 210 175 143.3 249 408 102 150 153 136.5

83 206 640 202 251 143.3 277 402.5 135(OFF) 150 189 136.2

99 216 663 199 305 398 153 140

114 225 1125 169.6 351 391.5 164 137.5

131 236 1270163.6 422 370 192 135.5

154 248 598 354.5

166 254 845 323.5 Point 24-4 #2 Point 24-6 #2

183 265 918 316 Q=1090 mL/min Q=1090 mL/min

206 277 1003 308 <0 133 <0 136

240(OFF) 295 1369 280.5 8 171 9 156

246 2901879 247.5 34 205 28 160

250286 2115 236 86 22049 160

254 284 2433 223 112 222 90(OFF) 160

266 280 4005 196 150(OFF) 222 96 140

274 272 155 200 113 136

282 275 168 175

305 270 183 150

332 263 201 142

368 255 220137

390250 296 132
130

p y

Piezometer Ferrihydrite Goethite Cr(OH)3 (a) Cr(OH)3 (c) Calcite Dolomite Siderite (d) Mackinawite Amakinite Gypsum Rhodoc

ML11-10 1.387 7.097 -0.736 -3.276 -1.206 -2.462 -0.292 -53.918 -4.351 -3.579 -1.0

ML11-8 0.924 6.634 -1.03 -3.569 -1.594 -3.362 -0.571 -53.33 -4.858 -2.753 -1.2

ML11-6 -0.745 4.965 0.969 -1.57 -1.741 -3.648 -5.071 -79.792 -9.355 -2.242 -1.0

ML11-4 -1.142 4.568 1.779 -0.761 -2.73 -5.298 -5.846 -84.143 -10.331 -2.168 -2.6

ML11-2 -0.953 4.757 1.42 -1.119 -2.68 -5.212 -5.781 -84.26 -10.113 -2.531 -2.5

ML11-0 -1.213 4.497 0.614 -1.925 -2.763 -5.414 -5.858 -84.315 -10.384 -2.509 -3.0

ML12-10 0.468 6.178 -0.022 -2.562 -1.472 -3.714 -4.182 -79.391 -8.204 -1.959 -2.9

ML12-8 0.544 6.254 -0.87 -3.409 -1.217 -3.055 -0.389 -47.952 -4.574 -2.492 -2.1

ML12-6 0.322 6.032 -0.508 -3.048 -1.025 -2.41 0.391 -36.423 -3.355 -3.077 -1.4

ML12-4 -0.961 4.749 1.683 -0.856 -2.598 -5.098 -6.068 -86.993 -10.459 -2.194 -2.1

ML12-2 -1.027 4.683 1.604 -0.936 -2.717 -5.287 -5.932 -85.151 -10.313 -2.299 -2.5

ML13-10 -2.448 3.262 -0.505 -3.045 -1.311 -3.637 -2.715 -38.739 -6.109 -2.711 -2.7

ML13-8 -4.328 1.382 -0.242 -2.781 0.233 -2.975 -1.372 0.359 -0.412 -24.021 -2.3

ML13-6 -4.242 1.468 -0.242 -2.782 0.235 -0.705 -1.316 0.341 -0.429 -23.267 -2.3

ML13-4 -3.445 2.265 -0.149 -2.688 0.136 -0.992 -1.238 0.223 -0.899 -13.433 -1.3

ML13-2 0.944 6.654 -0.088 -2.627 0.53 1.23 -1.002 -35.033 -2.051 -4.197 -0.6

ML13-0 -1.161 4.549 -0.098 -2.637 0.5 1.318 -0.661 -15.862 -1.484 -6.774 -1.1

ML14-10 0.602 6.312 -0.118 -2.658 -0.549 -1.929 0.545 -29.065 -1.746 -6.026 -0.6

ML14-8 -2.99 2.72 -0.231 -2.771 0.178 -2.946 -2.353 -2.792 -1.537 -6.541 -2.3

ML14-6 -6.078 -0.368 0.515 -2.025 -0.331 -3.691 -2.444 -0.733 -1.696 -28.325 -2.4

ML14-4 -5.806 -0.096 -0.145 -2.684 -0.216 -3.713 -1.94 -0.274 -1.417 -28.32 -2.4

ML14-2 0.322 6.032 -0.159 -2.698 0.087 -0.598 -2.119 -27.537 -1.399 -6.216 -2.4

ML14-0 -3.741 1.969 -0.296 -2.836 -0.642 -4.099 -1.564 0.504 -0.127 -22.142 -2.4

ML15-10 0.728 6.438 -0.021 -2.56 -1.112 -3.168 -5.629 -93.559 -9.458 -2.206 -1.9

ML15-8 -3.487 2.223 -0.85 -3.389 -1.773 -4.327 -1.68 -25.276 -5.629 -2.893 -2.2

ML15-6 -0.29 5.42 -0.807 -3.346 -2.107 -4.595 -0.907 -42.301 -4.634 -3.403 -1.9

ML15-4 -7.195 -1.485 -0.074 -2.613 -5.134 -9.97 -3.392 -1.502 -3.781 -25.216 -2.7

ML15-2 1.585 7.295 -0.074 -2.613 -0.599 -1.047 -1.174 -46.107 -2.602 -6.691 -1.2

ML15-01.139 6.849 -0.776 -3.316 -2.373 -4.674 -1.321 -56.401 -4.893 -3.854 -1.8

ML21-7 0.322 6.032 -0.590 -3.130 -1.656 -3.480 -0.533 -47.095 -4.733 -2.434 -0.7

ML21-6 0.273 5.983 -0.625 -3.164 -1.897 -3.855 -1.023 -50.713 -5.253 -2.041 -1.2

ML21-5 -0.964 4.746 2.228 -0.312 -2.587 -5.008 -5.686 -83.210 -10.015 -2.363 -2.5

ML21-4 -0.872 4.838 2.003 -0.536 -2.799 -5.468 -5.618 -82.080 -9.770 -2.731 -2.6

ML21-3 -1.085 4.625 1.218 -1.321 -2.699 -5.294 -5.246 -78.566 -9.586 -2.672 -2.5

ML21-2 -1.053 4.657 1.329 -1.210 -2.793 -5.511 -5.438 -79.392 -9.651 -2.615 -2.8

ML21-1 -2.222 3.488 -0.949 -3.488 -2.529 -4.991 -4.889 -65.854 -9.129 -2.888 -2.8

ML22.5-8 -0.390 5.320 -0.209 -2.748 -1.628 -3.870 -0.163 -32.879 -3.631 -3.072 -1.6

ML22.5-7 -0.195 5.515 -0.148 -2.688 -1.448 -3.489 0.047 -32.773 -3.428 -3.056 -1.4

ML22.5-6 0.025 5.735 0.057 -2.483 -1.368 -3.320 0.109 -33.127 -3.251 -3.057 -1.2

ML22.5-5 0.364 6.074 -0.008 -2.548 -1.222 -3.014 0.263 -34.051 -3.017 -3.139 -1.1

TABLE G1. Mineral Saturation Indices Calculated with MINTEQA2.

Based on December 1998 EPA sample analyses.
131

ML22.5-4 0.971 6.681 0.148 -2.391 -0.689 -1.709 0.682 -34.545 -2.489 -2.896 -0.446 7.37 -151.9

ML22.5-3 -0.043 5.667 -0.102 -2.642 -1.172 -2.470 0.348 -33.458 -3.387 -2.878 -0.657 6.91 -131.8

ML22.5-2 2.145 7.855 1.659 -0.880 -1.924 -3.783 -0.750 -60.832 -4.594 -2.754 -1.471 6.60 84.0

ML22.5-1 0.454 6.164 1.228 -1.312 -2.721 -5.330 -2.190 -61.771 -6.313 -2.818 -2.534 6.08 116.0

ML22.5-0 -0.019 5.691 0.098 -2.442 -1.296 -2.412 0.468 -30.179 -2.835 -4.070 -1.255 7.25 -182.4

ML23.5-8 -2.237 3.473 0.341 -2.198 -0.479 -1.151 -1.963 -21.249 -3.354 -5.485 -1.018 8.69 -365.3

ML23.5-7 1.053 6.763 0.338 -2.202 -0.724 -1.623 -0.973 -39.534 -2.499 -5.523 -0.936 8.52 -213.5

ML23.5-6 -1.572 4.138 0.339 -2.201 -0.323 -0.868 -2.359 -26.374 -3.253 -5.545 -0.951 9.05 -353.4

ML23.5-5 -0.391 5.319 0.338 -2.201 -0.422 -0.948 0.117 -18.748 -1.464 -5.360 -0.291 8.55 -359.7

ML23.5-4 -0.081 5.629 0.338 -2.202 -0.241 -0.692 0.341 -20.295 -1.366 -5.254 -0.226 8.52 -345.6

ML23.5-3 1.982 7.692 0.338 -2.202 0.517 0.819 -4.551 -78.704 -5.896 -5.269 -0.601 9.08 5.9

ML23.5-2 2.769 8.479 0.687 -1.853 0.285 0.523 -3.216 -72.112 -4.581 -4.468 -0.092 9.06 -23.7

ML23.5-1 0.829 6.539 0.264 -2.276 0.536 1.559 -4.324 -60.395 -4.718 -5.816 -1.191 9.84 -174.2

ML23.5-0 0.869 6.579 0.266 -2.274 0.503 1.759 -2.462 -43.720 -2.831 -5.808 -1.048 9.83 -281.2

ML24-7 -3.184 2.526 0.264 -2.275 -0.921 -3.017 -1.902 1.514 -0.598 -12.845 -1.318 9.85 -648.6

ML24-6 -4.742 0.968 0.290 -2.250 -0.885 -2.857 -1.119 2.069 -0.192 -28.750 -1.001 9.70 -754.3

ML24-5 -4.607 1.103 0.260 -2.280 -0.925 -2.669 -1.876 1.594 -0.495 -25.005 -1.355 9.87 -738.7

ML24-4 -4.087 1.623 0.149 -2.390 0.189 -0.560 -2.458 0.293 -1.414 -13.099 -1.314 10.25 -677.0

ML24-3 0.685 6.395 0.229 -2.310 0.532 1.417 -1.899 -35.034 -1.994 -5.822 -1.155 9.99 -350.0

ML24-2 0.828 6.538 -0.470 -3.009 0.615 1.574 -1.931 -38.562 -2.274 -5.854 -0.909 9.92 -321.3

ML24-1 0.802 6.512 0.244 -2.295 0.359 1.258 -2.304 -40.588 -2.521 -5.996 -0.649 9.93 -309.0

ML25-7 0.095 5.805 -0.263 -2.802 -2.205 -4.453 -1.068 -43.483 -4.401 -3.309 -1.378 6.69 -51.9

ML25-6 -0.185 5.525 0.039 -2.500 -2.655 -5.343 -1.591 -41.230 -4.219 -4.682 -1.744 7.12 -103.9

ML25-5 0.522 6.232 0.330 -2.210 -1.460 -2.507 -0.480 -32.011 -2.240 -5.554 -1.504 8.33 -248.5

ML25-4 0.281 5.991 0.631 -1.908 -0.155 -0.169 -2.946 -46.814 -3.798 -6.047 -1.266 9.39 -233.5

ML25-3 0.806 6.516 0.282 -2.258 0.020 -0.104 -4.795 -64.697 -5.240 -6.172 -1.731 9.74 -139.3

ML25-2 0.691 6.401 0.231 -2.308 -1.572 -3.346 -0.433 -39.617 -3.112 -4.980 -1.673 7.62 -146.4

ML25-1 0.784 6.494 0.139 -2.401 -1.950 -3.868 -0.317 -41.729 -3.241 -5.817 -1.476 7.34 -117.2

ML31-10 0.958 6.668 -0.810 -3.350 -1.178 -2.874 -3.616 -80.368 -7.756 -2.877 -1.364 6.55 402

ML31-8 -0.620 5.090 -1.094 -3.633 -1.944 -4.016 -5.645 -85.006 -9.775 -2.726 -1.642 6.27 444

ML31-6 -1.015 4.695 -1.392 -3.931 -2.010 -3.966 -5.132 -79.277 -9.579 -2.299 -1.708 6.04 423

ML31-4 -0.989 4.721 0.338 -2.202 -2.598 -5.064 -5.845 -84.714 -10.195 -2.471 -2.583 5.91 468

ML31-0 -0.868 4.842 -1.395 -3.935 -2.619 -5.157 -5.747 -85.315 -10.071 -3.215 -3.045 6.01 462

ML32-10 1.312 7.022 0.253 -2.286 -0.938 -2.719 -2.621 -67.805 -6.035 -2.000 -2.432 7.02 295

ML32-8 0.619 6.329 -0.762 -3.302 -1.386 -3.413 -0.658 -48.101 -4.454 -2.896 -2.191 6.60 187

ML32-6 0.249 5.959 -0.832 -3.372 -1.240 -3.215 0.268 -39.274 -3.845 -2.686 -1.299 6.53 134

ML32-4 -1.001 4.709 0.293 -2.247 -2.362 -4.757 -5.611 -82.861 -9.998 -2.298 -1.774 5.94 454

ML32-2 -1.484 4.226 0.230 -2.309 -2.798 -5.505 -5.219 -75.442 -9.603 -2.721 -2.832 5.87 407

ML32-0 0.922 6.632 -1.344 -3.884 -2.647 -5.213 -3.341 -77.124 -7.567 -3.179 -3.031 6.05 418

ML33-10-0.598 5.112 -9.142 -11.682 2.337 0.793 -13.517 -113.717 -11.813 -2.797 -2.273 11.30271

ML33-8 -1.403 4.307 -0.304 -2.843 -0.599 -1.981 -1.709 -38.333 -5.046 -2.739 -1.878 7.28 64

ML33-6 0.373 6.083 -0.284 -2.823 -0.348 -1.268 0.925 -30.129 -2.462 -3.383 -0.445 7.33 14

ML33-4 0.952 6.662 -0.176 -2.715 -0.014 -0.456 0.689 -36.624 -2.332 -5.709 -0.073 7.66 21

ML33-2 1.573 7.283 -0.164 -2.704 -0.392 -1.020 0.649 -35.964 -1.967 -3.338 -0.111 7.71 33

ML33-0 -1.245 4.465 -0.227 -2.767 0.506 1.283 -2.386 -18.629 -1.718 -6.605 -1.368 10.29 -296

Piezometer Ferrihydrite Goethite Cr(OH)3 (a) Cr(OH)3 (c) Calcite Dolomite Siderite (d) Mackinawite Amakinite Gypsum Rhodochrosite pH Eh (mV)
132

ML34-10 -0.092 5.618 0.770 -1.770 0.071 -0.375 -0.938 -31.787 -2.713 -4.465 -1.175 8.61 -73

ML34-8 0.635 6.345 -0.084 -2.623 -0.074 -0.369 0.203 -31.122 -1.856 -6.125 -0.344 8.36 -66

ML34-6 0.093 5.803 -0.128 -2.667 -0.428 -0.989 0.123 -30.030 -2.316 -5.966 -0.186 7.90 -44

ML34-4 -0.617 5.093 -0.074 -2.613 0.231 0.225 -0.104 -20.065 -1.663 -6.016 -0.817 8.70 -170

ML34-2 0.565 6.275 -0.127 -2.666 0.559 0.703 -6.508 -77.898 -6.819 -6.415 -2.322 9.70 141

ML34-0 -0.180 5.530 -0.558 -3.098 0.455 -2.044 -1.443 -13.847 -0.124 -7.054 -2.289 10.79 -356

ML35-10 -0.529 5.181 -0.466 -3.006 -1.091 -2.724 -0.201 -34.370 -3.888 -3.040 -0.886 6.98 65

ML35-6 0.451 6.161 -1.014 -3.554 -2.668 -5.700 -2.934 -65.089 -6.550 -3.476 -2.057 6.33 315

ML35-4 0.217 5.927 -0.087 -2.626 -1.878 -3.787 -1.405 -34.091 -2.763 -5.377 -1.702 8.30 -34

ML35-2 0.852 6.562 -0.138 -2.678 -1.553 -3.061 -0.988 -44.356 -3.255 -6.724 -1.705 7.83 59

ML35-0 1.003 6.713 -0.704 -3.244 -3.150 -6.277 -1.913 -57.749 -5.099 -4.826 -2.575 6.65 244

(a) = amorphous

(c) = crystalline

(d)= disordered, or freshly precipitated

Piezometer Ferrihydrite Goethite Cr(OH)3 (a) Cr(OH)3 (c) Calcite Dolomite Siderite (d) Mackinawite Amakinite Gypsum Rhodochrosite pH Eh (mV)
133

Appendix H List of Standard Operating Procedures

Standard Operating Procedures

1. RSKSOP-181 for the ICP determination of metal concentrations (ManTech)

2. RSKSOP-146 for analysis of TCE, cDCE, VC (automated purge and trap /GC analysis of vinyl chloride and

other volatile chlorocarbons in aqueous samples containing particulates)

3. RSKSOP-152 for ground-water sampling (see Appendix I)

4. Anions by CE using Waters Capillary Electrophoresis Method N-601

5. Hexavalent chromium determination, diphenylcarbazide colorimetric method (Hach® method 8023 adapted

from Standard Methods, 3500-Cr D)

6. USEPA method 353.1 for colorimetric determination of NO2 and NO3

7. RSKSOP-147 and RSKSOP-175 for the analysis, preparation and calculation of ethylene, methane and

ethane concentrations

8. Fe(II) by the 1, 10-phenanthroline colorimetric method, (Hach® method 8146, adapted from Standard

Methods, 3500-D)

9. Dissolved sulfide by colorimetric methylene blue method (Hach® method 8131 equivalent to US EPA method

376.2)

10. RSKSOP-102 for the determination of total organic carbon

11. Determination of TCE and degradation products at the University of Waterloo (Henderson et al., 1976; Glaze

et al., 1981)

Glaze, W.H., Rawley, R., Burleson, J.L., Mapel, D. and Scott, D.R., 1981. Further optimization of the pentane liquidliquid extraction method for the analysis of trace organic compounds in water. In: Advances in the identification

and analysis of organic pollutants in water. Vol. 1, Keith, L.H. ed, Ann Arbor Pub. Inc., Ann Arbor, MI.

Henderson, J.E., Peyton, G.R. and Glaze, W.H., 1976. A convenient liquid-liquid extraction method for the

determination of halomethanes in water at the parts-per-billion level. In Identification and Analysis of Organic

Pollutants in Water. L.H. Keith, Ed., Ann Arbor Science Publishers Inc., Ann Arbor, MI, p. 105.
134

Appendix I Ground Water Sampling - Standard Operating Procedures

I. Disclaimer:

This standard operating procedure has been modified from the procedure prepared for the use of the Robert S. Kerr

Environmental Research Laboratory (RSKSOP-152, Revision 4) of the U.S. Environmental Protection Agency. This

procedure is suitable for University of Waterloo sampling at the U.S. Coast Guard Elizabeth City site and may not be

specifically applicable to the activities of other organizations.

II. Purpose: (Scope and Application)

This document describes the procedures used to obtain the most “representative” ground-water samples currently

possible from monitoring wells for the determination of ground water quality in general and specifically to determine

extent of contaminant release.

III. Summary of Method:

The following ground-water sampling procedure is based on several years of experience in sampling ground waters for

both metals and organic compounds (Puls and Barcelona, 1989; Puls et al., 1990; Puls et al. 1991; Puls and Powell,

1992; Paul and Puls, 1992). The primary limitations to the collection of “representative” ground-water samples are the

following: disturbance of the stagnant water column above the screened interval (e.g. mixing due to insertion of the

sampling device or ground water level measurement device); resuspension of settled solids at the base of the casing

(e.g. high pumping rates, raising and lowering a bailer); disturbance at the well screen during purging and sampling (e.g.

high pump rates, raising and lowering a bailer); introduction of atmospheric gases or degassing from the water (e.g.

sample handling, transfer, vacuum from sampling device etc.).

Samples should not be taken immediately following well development. A sufficient time should elapse to allow the ground

water flow regime in the vicinity of the monitoring well to stabilize and to let chemical equilibrium with the well construction

materials be approached. This lag time will depend on site and installation specific parameters.

It is generally agreed that the purging of monitoring wells for the purpose of obtaining representative samples is

necessary in most instances. Ground-water chemistry can be altered through contact with the atmosphere, well casing

materials, screen, gravel pack and surface seal. Rather than using a general guideline of purging three casing volumes

prior to sampling, it is recommended that an in-line water quality indicator device be used to establish the equilibration

time for several parameters (e.g. pH, specific conductance, redox, dissolved oxygen, turbidity) on a well-specific basis

and the volume required for parameter equilibration then become the accepted (documented) purge volume.

With these limitations or constraints in mind, and acknowledging that it may in fact be impossible to obtain a perfectly

“representative” sample, the following general recommendations are made and incorporated into this procedure:

• the use of low flow rates (< 0.5 L/min), both during purging and sampling,

• placement of the sampling device intake at the desired sampling point,

• minimal disturbance of the stagnant water column above the screened interval (during water level measurement and

sample device insertion),

• monitoring of water quality indicators during purging,

• minimization of atmospheric contact with samples,

• collection of unfiltered samples for estimating contaminant loading and transport potential in the subsurface system.

These recommendations and much of the following assume the use of portable sampling equipment, that is,

non-dedicated systems. In the majority of cases, these methods will result in low turbidity samples precluding the need

for filtration, resulting in less sample handling and fewer sampling artifacts. Such a method would also include the

potentially mobile colloidal-associated metal contaminant fraction, which would otherwise be eliminated.
135

IV. References:

Puls, R.W., and M.J. Barcelona. 1989. Filtration of Ground Water Samples for Metals Analysis. Hazardous Waste and

Hazardous Materials, v.6, no.4, pp. 385-393.

Puls, R.W., J.H. Eychaner, and R.M. Powell. 1990. Colloidal-Facilitated Transport of Inorganic Contaminants in Ground

Water: Part I. Sampling Considerations. EPA/600/M-90/023, 12 pp.

Puls, R.W., D.A. Clark, B. Bledsoe, R.M. Powell, and C.J. Paul. 1992. Metals in GroundWater: Sampling Artifacts and

Reproducibility. Hazardous Waste and Hazardous Materials. v.9, no.2, pp 149-162.

Puls, R.W. and R.M. Powell. 1992. Acquisition of Representative Ground Water Quality Samples for Metals. Ground

Water Monitoring Review, v.12, no. 3.

Paul, C.J. and R.W. Puls. 1992. Comparison of Ground-Water Sampling Devices Based on Equilibration of Water Quality

Indicator Parameters. Proceedings of Sampling Symposium, November, 1992, Washington D.C. pp. 21-39.

Powell, R.M. and R.W. Puls. 1993. Passive Sampling of Ground Water Monitoring Wells Without Purging: Multilevel Well

Chemistry and Tracer Disappearance. Hydrology, 12(1), 51-77.

Puls, R.W. and C.J. Paul. 1995. Low-Flow Purging and Sampling of Ground-Water Monitoring Wells with Dedicated

Systems. Ground Water Monitoring and Remediation, 15(1):116-123.

V. Procedure:

In advance of sampling set-up or opening of the wells, all sampling and monitoring equipment should be calibrated

according to manufacturers recommendations. Calibration of pH should be performed with at least two buffers that

bracket the expected range. Dissolved oxygen calibration must be corrected for local barometric pressure readings and

elevation.

A. Water Level Measurement

Use a device that will only disturb the uppermost portion of water in the casing. Well depth should be

obtained from the well logs. Measuring to the bottom of the well casing will only cause resuspension of

settled solids from the formation and require longer purging times for turbidity equilibration. The water level

measurement should be taken from the permanent reference point, which is surveyed in relative to ground

elevation. For the University of Waterloo small diameter multilevel monitoring system, the centre stock will

serve as the only water level monitoring point.

B. Sampling Device Insertion and Equipment Set-up

The sampling device intake should be slowly and carefully lowered to the middle of the screened interval or

slightly above the middle (e.g. 1.5-2.5 ft below the top of a 5 ft screen). This is to minimize excessive mixing

of the stagnant water above the casing with the screened interval zone water, and to minimize resuspension

of solids (i.e. fines) which have collected at the bottom of the well casing. These two ‘disturbance’ effects

have been shown to directly affect time for purging (i.e. time to reach equilibration of water quality indicator

parameters). Also there appears to be a direct correlation with size of sampling device and purge time (i.e.

increased time for increasing size of device). The key is to minimize disturbance of the water and solids in

the well casing. The monitoring points of the multilevel samples serve as dedicated samplers, which are

connected directly to a peristaltic sampling pump. These samplers will be pumped at low flow rates to

minimize disturbance effects.

C. Well Purging

In most cases the water in the well casing (particularly above the screened interval) is of different chemical

quality to that of the formation water due to a variety of physical, chemical and microbiological processes

which can occur over time. The use of low flow (e.g. 0.1-0.5 L/min) pumps is suggested. These include

bladder pumps (e.g. GeoTech small dia. bladder pump; QED Well Wizard bladder pump), submersible

pumps (e.g. Grundfos Redi-Flo, 2 in. dia. pump), and peristaltic pumps. The peristaltic pump can cause

degassing resulting in alteration of pH, alkalinity, and some volatiles loss. All pumps have some minor

limitations and these should be investigated with respect to your particular application. The use of bailers is

strongly discouraged. Water level is continuously checked to monitor drawdown in the well as a guide to flow

rate adjustment. The goal is minimal drawdown (<0.3 ft) during purging. In-line water quality indicator

parameters should be continuously monitored during purging. The water quality indicator parameters

monitored can include pH, oxidation-reduction potential (redox), specific conductance, dissolved oxygen

(DO) and turbidity. The most sensitive of these parameters are the last three. Once documented, the time or

volume required to obtain equilibration of parameter readings, can be used as a future guide to purge time
136

or volume for that well. Measurements should be taken at least every three minutes if the above suggested

flow rates are used. Equilibration is achieved after all parameters have stabilized for three successive

readings. In lieu of measuring all 5 parameters a minimum subset would include specific conductance, DO

and turbidity. In the case of the small diameter multilevel sampling wells, the minimum subset will include pH

and Eh, which will be measured on-line in a sealed flow-through system. More specific equilibration

guidelines are the following: three successive readings are within ±0.1/min for pH, ±10 mV/min for redox,

±3%/min for specific conductance, ±10%/min for DO, and ±10%/min for turbidity. Equilibrated trends are

generally obvious and follow either an exponential decay or asymptotic trend during purging. Dissolved

oxygen and turbidity usually require the longest time for equilibration. The above equilibration guidelines are

provided as rough estimates based on experience. Upon parameter equilibration, sampling can be initiated.

The sequence in which samples are collected is immaterial unless there will be filtration. Filtering should be

done last and in-line filters should be used as discussed below.

D. Well Sampling

Upon water quality parameter equilibration, sampling should begin immediately and using the same device

as was used for purging. Ideally sampling should occur in a progression from least to most contaminated

well if this is known. During both well purging and sampling, proper protective clothing and equipment must

be used based upon the type and level of contaminants present.

E. Sample Containers & Filtration

The appropriate sample container will be prepared in advance of actual sample collection for the analyte of

interest including where necessary a sample preservative. The water sample should be collected directly

into this container from the pump tubing. Methods for sample handling and preservation are spelled out in

Handbook for Sampling and Sample Preservation of Water and Wastewater, EPA/600/4-82.

If samples are field-filtered, an in-line high-capacity filter should be used. The filters must be pre-rinsed

following manufacturer’s recommendations. If there are no recommendations for rinsing, pass through a

minimum of 1 L of ground water following purging and prior to sampling. In-line filters are available in both

disposable (barrel filters) and non-disposable (in-line filter holder, flat membrane filters) formats and various

filter pore sizes (0.1-5.0 m).

F. Sampler & Equipment Decontamination

Specific decontamination protocols for sampling devices are dependent to some extent on the type of device

used and the type of contaminants encountered. The pump (including support cable and electrical wires

which are in contact with the sample) can be decontaminated by the following procedure:

1. Pump AlconoxTM solution through the pump and tubing.

2. Pump water through the pump and tubing.

3. Where gross contamination by VOCs are encountered, pump methanol through the pump and

tubing.

4. Pump at least one system volume (pump, tubing, etc.) of distilled water through the pump and

tubing. All other equipment that comes in contact with contaminated groundwater can be

decontaminated similarly. The duration of flushing with de-ionized water following the use of

methanol shall be sufficiently long to ensure that all solvent has been rinsed out. This can be

monitored via a conductivity meter and probe. Equipment blanks shall be collected to monitor

the decontamination procedures.

G. Sample Blanks

The following blanks should always be collected:

1. field equipment/decontamination process blanks.

2. trip blank - sample bottle filled with laboratory-grade deionized water and stored and shipped

with samples.

H. Dedicated Well Pumps (specific to Elizabeth City site)

If the wells have dedicated pumps (bladder, electric submersible, peristaltic tubes) installed, studies at the

site have shown the need for little purging. A general guideline is 3 system volumes (pump, tubing, etc.)

purged prior to sample collection. One record of parameter equilibration should be established to verify this

for subsequent sampling events.
137

Appendix J Quality Assurance – Quality Control Narrative

A large number of samples were analyzed over the duration of the project (> 1,200 sets of samples) with a number of

analyses performed (> 40 per set). The data quality was assessed using blank samples, duplicate samples, and spike

recovery samples. The quality of the dataset is excellent.

Other than selected duplicate organic samples collected for UW, all groundwater samples collected at the Elizabeth City

site were analyzed by the ManTech Environmental Research Services Corporation, Ada, OK using methods developed

for, or recommended by, the EPA Subsurface Protection and Remediation Division (Appendix H). Once analyzed, the

complete analytical results, including quality control (QC) measures such as spikes, duplicates, known standards and

blanks, were reported to NRMRL-EPA. The groundwater results were organized and provided to UW by NRMRL-EPA

and did not include the QC results from ManTech. During the organization of the data at NRMRL-EPA, the QC measures

performed by the contract lab were examined and any unusual results were flagged in the datasets.

Duplicates

Analytical results for duplicate samples are shown in Tables J1-J4. Statistical analyses were performed on selected

organic (TCE, c-DCE and VC; Table J4) and cation (Na, K, Ca, Mg and Cr; Table J2) components of interest. The

replicate results are in good agreement. In general, the variability of the measurements is low and within acceptable limits

(< 5 % difference). The spread of the data, as indicated by percent relative standard deviation (RSD) calculations, is

< 10% and usually below 5%. As expected, larger percent differences and standard deviations were observed for

measurements approaching the detection limit.

Field and Trip Blanks

Results for the field/decontamination and trip blanks analyzed are presented in Tables J5-J7. Few contamination effects

were observed with the majority of the analytical results reported as ND or BLQ values. General observations and any

corrective measures implemented are described below.

For the target species of interest in this project, Cr and TCE, the field and trip blanks show few false positive results. The

majority of the field blanks had Cr values below the limit of quantitation with all field and trip blanks reporting

< 0.006 μg/L Cr (Table J5). TCE contamination of the field and trip blanks was observed at only one sample point in

June, 1997 (1.1 μg/L, Table J7) and is very close to the limit of quantitation of 1 μg/L.

Sodium was detected at quantifiable concentrations in 65% of the field blanks and in 60% of the trip blanks analyzed, but

generally did not exceed 1 μg/L Na (Table J5). Because the average field blank Na values for a particular sample session

represented only 0.6% to 2.3% of the average groundwater Na concentration measured for that time, Na contamination

was considered a minor effect. The presence of sodium in the blanks may be attributed to a sample bottle contaminant

or, for the field blanks, incomplete rinsing of Alconox® solution from the sampling lines during decontamination

procedures. (Sodium is the primary cation in the Alconox® formulation.) This problem was addressed, although not

completely resolved, by rinsing the sample bottles with groundwater before sample collection and ensuring more

complete flushing of the sampling system with deionized water after the Alconox® rinse between sample points. Sodium

is a pervasive cation in the environment. With ICP detection limits approaching better than 1 μg/L for this element,

prevention of contamination is difficult.

Field blanks collected along the ML2 transect in March, 1998 contain elevated Cl and SO4

 values of < 10 μg/L (Table J6).

The Cl concentrations are generally below the values measured in the piezometers previously sampled by the same

equipment, whereas the blank SO4 concentrations are higher. These effects were not observed in other sampling

sessions or at other locations and are probably due to incomplete rinsing of Alconox® from the sampling equipment

between sample points. Both Cl and SO4 are present in the Alconox® cleaning solution, and at concentrations similar to

the measured contamination levels, 9 ppm Cl and 12 ppm S at the recommended 1% Alconox® dilution. Corrective

measures to alleviate this contamination included a more thorough rinsing of the equipment after the Alconox® flush.

c-DCE values of < 9, 8 and 3 μg/L were observed along the ML2 transect in the field blanks for March, June and

December, 1998, respectively (Table J7). These measured values may be due to incomplete cleaning of sampling

equipment during sampling and are not attributed to Alconox® or bottle contamination. The problem was addressed,

although not completely alleviated, by ensuring more complete flushing of the sample manifold with Alconox® solution.

Few manifold (i.e. organic) cross-contamination problems were observed along the ML1 and ML3 transects. All TCE,
138

c-DCE and VC measurements on the trip blanks analyzed were below the limit of detection suggesting that the sample

bottles were not a source of organic contamination.

Comparison of Organic Samples Analyzed by ManTech and UW

Groundwater in the multilevel bundle piezometers was sampled using a modified version of the Standard Operating

Procedure RSKSOP-152 (Appendix I). Organic samples for analysis at UW were collected in series in the manifolds to

ensure that relative comparisons could be made.

Concentrations of TCE and its degradation products were determined by headspace gas chromatography (GC) at the

University of Waterloo (described in Document I), and by automated purge and trap /GC analysis at ManTech according

to RSKSOP-146. The UW method requires that the partitioning of the analyte between the liquid and gas phase be at

equilibrium between the two phases, as opposed to being exhaustively extracted from the water, as is the case with

purge and trap techniques. Pentane extraction and headspace analytical techniques are especially suited for column

treatability studies and for groundwater samples from multilevel piezometers, because they can accommodate the small

sample sizes removed from ports along the column profile or from points along the piezometer bundle. At UW, a 1 mL

sample volume was needed for TCE analysis via an ECD, and a 1 mL sample volume was needed for DCE and VC

analyses via a PID. This is in contrast to the EPA recommended purge and trap GC method which requires a sample

volume of at least 5 mL for detection with an FID detector.

Table J8 compares the TCE, c-DCE and VC results for the organic field samples analyzed via the EPA purge and trap

and the UW headspace methods. Statistical analyses, including relative percent differences and standard deviations, are

reported. For the statistical calculations, values reported as BLQ or ND were set to 1 μg/L, the limit of quantitation for

ManTech and UW analyses.

The TCE results between the ManTech and UW labs are in good agreement. In general, the variability of the

measurements is low and within acceptable limits, with relative differences < 7%. The spread of the data, as indicated by

the RSD, is < 10%. Approximately 48% of the organic samples analyzed at UW are higher in TCE concentration than

samples analyzed at ManTech suggesting a lack of bias between the two different analytical techniques. TCE samples

measured at the low end of the calibration curve (< 10 μg/L) were reported with similar accuracy between the two labs.

In contrast to the TCE results, the c-DCE and VC measurements between the two labs agree to a lesser extent. With

c-DCE and VC present as degradation products of the TCE treatment process, the majority of the groundwater samples

analyzed by both labs are low in c-DCE and VC (< 10 μg/L) and approach the detection limits for each analyte. Average

relative differences approach 20% for c-DCE and 24% for VC. The ManTech results for c-DCE and VC are consistently

higher, in 76% and 89% of the samples, respectively. In general, samples reported by ManTech as having measurable

c-DCE and VC concentrations below < 10 μg/L were reported as ND by the UW lab. The differences in reported values

are probably due to the differences in analytical methods including calibration effects. For VC analysis at UW, a linear

calibration curves is utilized over a longer range (1- 700 μg/L at UW vs. 1- 100 μg/L at ManTech), however, the majority

of the samples are near the lowest standard (10 μg/L). For c-DCE, both labs run similar calibration ranges (1 - 1,000 μg/L),

however, as is the case with VC, the majority of the samples are at the low end of the curve, near 10 μg/L. Because small

variations in linear calibration curve setup, or differences in calibration standards, can cause large changes in results for

samples measured at the low or high end of a curve, the differing results in this range are not unexpected.

Data Quality

Considering the large number of samples collected during the project and the number of analyses performed, the quality

of the dataset is excellent. Sample collection and analysis sheets compiled during the project report few problems. All

field analyses were performed according to EPA recommended or approved protocols. The dataset was examined for

entry errors and unusual results or comments were flagged. Deviations of sample duplicates, field and trip blanks from

expected results are noted above and are considered minor. Differences between c-DCE and VC analyses at ManTech

and the UW labs are notable, however, both sets of analyses indicate that TCE and its degradation products are being

successfully removed from the site groundwater, as is Cr(VI), using the zero valent iron reactive barrier.
139

List of Tables for Quality Assurance - Quality Control Narrative

Table J1 Summary of Cation Results for Duplicates

Table J2 Statistical Results for Selected Cation Duplicates

Table J3 Summary of Anion Results for Duplicates

Table J4 Summary of Organic Results for Duplicates

Table J5 Summary of Inorganic Results for Blanks

Table J6 Summary of Anion Results for Blanks

Table J7 Summary of Organic Results for Blanks

Table J8 Comparison of Organic Samples Analyzed by ManTech and UW
140

Table J1 Summary of Cation Results for Duplicates

Sample Session Na K Ca Mg Fe Mn Al As Cr Ni Zn Pb Sr Ba 

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)

ML22-2.45 Nov-96 53 2.1 6.55 0.65 0.023 <0.0051 0.679 <0.014 <0.0031 <0.010 <0.0026 <0.036 0.0839 <0.0067

ML22-2A.45 44.8 <1.6 6.65 3.95 0.014 0.117 <0.055 <0.014 1.56 <0.010 <0.0026 <0.036 0.0949 0.0157

ML31-7.45 31.1 7.7 28.4 13.1 <0.010 0.719 <0.029 <0.010 <0.0025 <0.011 <0.0014 <0.024 0.386 0.0463

ML31-7.45 32 6.4 27.9 12.9 <0.010 0.716 <0.029 <0.010 <0.0025 <0.011 <0.0014 <0.024 0.388 0.0458

ML31-10.45 14.7 4.6 26.7 7.31 <0.010 0.223 <0.029 <0.010 <0.0025 <0.011 <0.0014 <0.024 0.35 0.0196

ML31-10.45 14.7 5.3 26.5 7.26 <0.010 0.223 <0.029 0.017 <0.0025 <0.011 <0.0014 <0.024 0.345 0.0207

no data Feb-97

ML11-9 DUP Jun-97 13.7 4.23 18 3.96 0.617 0.556 <0.026 <0.015 <0.0044 <0.011 <0.0015 <0.0092 0.18 0.0136

ML11-9 13.5 3.68 17.9 3.87 0.611 0.553 0.027 <0.015 <0.0044 <0.011 <0.0015 <0.0092 0.178 0.0128

ML11-4 113 1.47 19.6 13.4 <0.0063 0.362 <0.026 <0.015 1.64 <0.011 0.0017 <0.0092 0.339 0.0619

ML11-4 DUP 108 2.16 18.4 12.7 <0.0071 0.331 <0.027 <0.012 1.59 <0.0098 0.0027 <0.0085 0.314 0.0582

ML11-4 DUP 107 2.08 18.3 12.6 <0.0071 0.331 <0.027 0.013 1.57 <0.0098 0.0024 <0.0085 0.312 0.0576

ML11-2 DUP 81.1 1.1 14.4 9.64 <0.0063 0.295 0.027 <0.015 0.942 <0.011 0.0006 <0.0092 0.219 0.0364

ML11-2 81.8 0.88 14.9 9.81 <0.0063 0.3 <0.026 <0.015 0.952 <0.011 0.0072 <0.0092 0.225 0.0363

ML12-6 DUP 6.9 3.62 7.15 2.85 9.46 0.0942 4.49 <0.015 0.0104 <0.011 0.0152 <0.0094 0.07 0.0373

ML12-6 6.88 3.3 6.86 2.43 6.76 0.0823 2.98 <0.015 <0.0044 <0.011 0.0108 <0.0093 0.065 0.0222

ML12-2 DUP+A16 60 1.32 9.92 7.33 <0.0071 0.237 <0.027 <0.012 0.852 <0.0098 0.0005 <0.0085 0.154 0.0247

ML12-2 DUP 60.6 1.45 9.9 7.39 <0.0071 0.239 <0.027 <0.012 0.857 <0.0098 0.0021 <0.0085 0.154 0.0249

ML13-8 DUP 3.49 2.16 6.63 <0.071 <0.0071 <0.0040 <0.027 <0.012 <0.0020 <0.0098 <0.0010 <0.0085 0.0525 0.0293

ML13-8 DUP 3.44 2.17 6.63 0.09 <0.0071 <0.0040 <0.027 0.018 <0.0020 <0.0098 <0.0010 <0.0085 0.0528 0.0295

ML13-3 DUP 14.8 1.12 4.94 1.05 0.017 0.015 <0.026 <0.015 <0.0044 <0.011 0.0021 <0.0092 0.0475 0.0095

ML13-3 15 1.26 4.85 1.03 0.0201 0.0167 0.029 <0.015 <0.0044 <0.011 <0.0015 <0.0092 0.0471 0.0093

ML14-10 2.62 1.32 5.2 0.187 0.12 0.0063 0.21 <0.015 <0.0044 <0.011 <0.0015 <0.0092 0.0173 <0.0033

ML14-10 DU 2.62 1.55 5.23 0.194 0.157 0.008 0.281 <0.015 <0.0044 <0.011 <0.0015 <0.0092 0.0176 <0.0033

ML14-6 5.54 1.5 2.34 <0.073 <0.0063 <0.0036 <0.026 <0.015 <0.0044 <0.011 <0.0015 <0.0092 0.007 <0.0033

ML14-6 DUP+A19 4.63 1.66 2.41 0.073 <0.0071 <0.0040 <0.027 <0.012 <0.0020 <0.0098 <0.0010 <0.0085 0.0071 <0.0025

ML14-6 DUP 4.6 1.8 2.42 <0.071 <0.0071 <0.0040 0.059 <0.012 <0.0020 <0.0098 <0.0010 <0.0085 0.0074 <0.0025

ML15-10 2.33 4.69 11.9 1.08 0.0777 0.0147 0.189 <0.015 0.0069 <0.011 <0.0015 <0.0092 0.123 0.0056

ML15-10 DUP+A19 2.28 4.14 11.6 1.03 0.047 0.0167 0.106 <0.016 0.0014 <0.0072 0.0032 <0.011 0.119 0.0057

ML15-1 DUP 58.6 <0.58 1.29 0.694 0.489 0.093 <0.026 <0.015 <0.0044 <0.011 0.0008 <0.0092 0.0164 <0.0033

ML15-1 58 <0.58 1.23 0.716 0.479 0.093 <0.026 <0.015 <0.0044 <0.011 <0.0015 <0.0092 0.0157 <0.0033

ML15-0 31.6 1.63 7.25 4.48 0.192 0.1187 <0.027 <0.012 <0.0020 <0.0098 0.001 <0.0085 0.0885 0.0096

ML15-0 DUP 31.7 1.73 7.35 4.48 0.189 0.1187 <0.027 <0.012 <0.0020 <0.0098 0.003 <0.0085 0.0889 0.0092

ML31-2 26.7 0.55 9.45 5.72 0.358 0.0984 0.233 <0.016 0.0498 <0.0072 0.004 <0.011 0.129 0.0169

ML31-2 DUP 26.7 1.4 9.44 5.67 <0.0071 0.0888 <0.027 <0.012 0.0434 <0.0098 <0.0010 <0.0085 0.128 0.0156

ML31-2 DUP 27.2 1.5 9.46 5.68 <0.0071 0.0888 <0.027 <0.012 0.0458 <0.0098 0.0019 <0.0085 0.128 0.016

ML32-6 13.1 4.6 27.3 2.07 12.3 0.244 <0.027 0.02 <0.0020 <0.0098 0.0004 <0.0085 0.335 0.0177

ML32-6 DUP 13.2 4.3 27.8 2.09 12.2 0.244 <0.027 0.02 <0.0020 <0.0098 <0.0010 <0.0085 0.341 0.0184

ML32-2 DUP 26.1 0.85 9.26 5.75 <0.012 0.136 <0.030 <0.016 0.12 0.0073 <0.0009 <0.011 0.123 0.0155

ML32-2 26.7 1.03 9.3 5.81 <0.012 0.137 <0.030 <0.016 0.121 <0.0072 0.0011 <0.011 0.124 0.0159

ML33-10 DUP 24.4 7.23 71.7 0.045 0.073 0.004 4.45 <0.016 <0.0037 <0.0072 <0.0009 <0.011 2.52 0.0084

ML33-10 23.8 7.49 71.1 0.067 <0.012 <0.0032 4.44 0.02 <0.0037 <0.0072 0.0465 <0.011 2.51 0.0086

ML33-4 21 2.95 26 5.4 0.429 0.191 <0.030 <0.016 <0.0037 <0.0072 0.171 <0.011 0.261 0.0039

ML33-4 26.2 2.67 20.4 4.79 0.961 0.255 <0.027 <0.012 <0.0020 <0.0098 <0.0010 <0.0085 0.2 0.003

ML33-4 DUP 26.5 2.97 20.3 4.77 0.99 0.267 <0.027 0.014 <0.0020 <0.0098 <0.0010 <0.0085 0.199 0.0034

ML33-3 DUP 37.7 2.53 19.1 5.9 5.84 0.636 <0.030 <0.016 <0.0037 0.0009 0.0029 <0.011 0.165 0.0064

ML33-3 38.2 2.72 19.9 6.2 6.06 0.659 <0.030 <0.016 <0.0037 <0.0072 <0.0009 <0.011 0.172 0.0063
141

ML34-9 DUP 15.2 1.57 6.27 1.57 0.0952 0.0345 0.127 <0.012 <0.0020 <0.0098 0.0016 <0.0085 0.0366 <0.0025

ML34-9 15.2 1.18 6.36 1.59 0.153 0.0344 0.206 <0.012 <0.0020 <0.0098 <0.0010 <0.0085 0.0374 <0.0025

ML34-2 36 0.84 5.51 2.76 0.0571 0.0064 0.028 <0.012 <0.0020 <0.0098 0.0032 <0.0085 0.054 <0.0025

ML34-2 36.3 1.7 4.23 2.21 <0.0071 <0.0040 <0.027 <0.012 <0.0020 <0.0098 <0.0010 <0.0085 0.0424 <0.0025

ML34-2 DUP 36.2 2.55 4.22 2.23 <0.0071 <0.0040 0.048 <0.012 <0.0020 <0.0098 <0.0010 <0.0085 0.0418 <0.0025

ML35-1 DUP 27.1 0.98 6.72 2.65 0.0281 0.008 <0.027 <0.012 <0.0020 <0.0098 <0.0010 <0.0085 0.07 <0.0025

ML35-1 27.1 0.85 6.71 2.61 0.0252 0.0096 0.028 0.022 <0.0020 <0.0098 <0.0010 <0.0085 0.0701 <0.0025

ML11-10DUP Sep-97 7.84 5.9 11.1 5.05 2.45 0.35 0.571 <0.014 <0.0044 <0.018 0.0049 <0.010 0.128 0.0153

ML11-10 7.63 6.26 10.8 4.89 2.27 0.336 0.398 <0.014 <0.0044 <0.018 0.0036 <0.010 0.125 0.0135

ML11-9DUP 10.8 3.73 15.2 3.32 1.06 0.51 <0.039 0.017 <0.0044 <0.018 <0.0013 <0.010 0.15 0.0122

ML11-9 10.4 4.69 14.6 3.21 1 0.486 <0.039 0.015 <0.0044 <0.018 <0.0013 <0.010 0.143 0.0109

ML11-8DUP 11.8 6.53 16.5 4.44 0.748 0.647 <0.039 <0.014 <0.0044 <0.018 0.0033 <0.010 0.166 0.0131

ML11-8 12.4 4.75 16.7 4.39 0.757 0.659 <0.039 <0.014 <0.0044 <0.018 0.0166 <0.010 0.171 0.0136

ML11-7DUP 12.9 5.16 17.2 5.29 0.308 1.01 <0.039 <0.014 <0.0044 <0.018 0.0051 <0.010 0.183 0.0191

ML11-7 13.5 4.29 17.8 5.42 0.308 1.05 <0.039 <0.014 <0.0044 <0.018 <0.0013 <0.010 0.19 0.0193

ML11-6DUP 15.5 5.8 20.1 7.27 <0.0069 1.62 <0.039 <0.015 <0.0044 <0.018 0.002 <0.010 0.247 0.0273

ML11-6 15.8 4.82 20.7 7.44 0.0134 1.68 <0.039 <0.015 <0.0044 <0.018 0.0069 <0.010 0.256 0.028

ML11-5DUP 33.5 6.59 23.1 10.8 <0.0069 2.03 <0.039 <0.015 0.0832 <0.018 0.0045 <0.010 0.356 0.0491

ML11-5 35 6.53 23.5 11.2 <0.0069 2.12 <0.039 <0.015 0.0839 <0.018 0.0128 <0.010 0.371 0.0516

ML11-4DUP 86.8 2.24 14.3 9.85 <0.0069 0.269 <0.039 <0.014 1.6 <0.018 0.0109 <0.010 0.245 0.0441

ML11-4 86.1 1.77 13.9 9.59 <0.0069 0.261 <0.039 0 1.56 <0.018 0.0087 <0.010 0.24 0.0453

ML11-3DUP 67.1 0.883 4.92 3.91 <0.0069 0.105 <0.039 <0.014 1.61 <0.018 <0.0013 <0.010 0.0845 0.0173

ML11-3 66.1 1.177 4.92 3.96 <0.0069 0.105 <0.039 <0.014 1.6 <0.018 <0.0013 <0.010 0.0845 0.0171

ML11-2DUP 68.6 1.143 9.03 6.15 <0.0069 0.185 <0.039 <0.014 1.17 <0.018 0.0022 <0.010 0.138 0.0242

ML11-2DUP 68 1.53 9.14 6.13 <0.0069 0.183 <0.039 <0.014 1.17 <0.018 0.0024 <0.010 0.137 0.0244

ML11-2DUP 73.8 1.59 9.63 6.56 0.007 0.197 <0.039 <0.014 1.24 <0.018 0.0127 <0.010 0.147 0.0269

ML11-2 72 1.45 9.45 6.45 <0.0069 0.195 <0.039 <0.014 1.22 <0.018 0.0022 <0.010 0.145 0.0262

ML11-1DUP 49.1 1.008 8.18 5.24 <0.0069 0.117 <0.039 <0.014 0.873 <0.018 0.009 <0.010 0.12 0.0198

ML11-1 48.2 1.48 8.05 5.17 <0.0069 0.117 <0.039 <0.014 0.856 <0.018 0.0035 <0.010 0.117 0.0198

ML11-0DUP 42.5 2.31 25.4 15.3 <0.0069 0.193 <0.039 <0.014 0.25 <0.018 0.0063 <0.010 0.341 0.0398

ML11-0 43.7 2.03 25.9 15.6 <0.0069 0.199 <0.039 <0.014 0.254 <0.018 0.007 <0.010 0.348 0.0408

ML12-10DUP 3.33 2.47 12.3 0.745 0.376 0.0326 <0.038 <0.017 <0.0028 <0.012 <0.0028 <0.015 0.101 0.0059

ML12-10 3.31 2.74 12.1 0.736 0.383 0.0306 <0.038 <0.017 <0.0028 <0.012 <0.0028 <0.015 0.1 0.0063

ML12-9DUP 4.11 3.18 13.4 2.64 1.26 0.0425 0.054 <0.017 0.003 <0.012 0.0085 <0.015 0.0978 0.0037

ML12-9 4.11 2.98 13.5 2.64 1.29 0.0424 0.168 <0.017 <0.0028 <0.012 <0.0028 <0.015 0.0983 0.0048

ML12-8DUP 4.63 4.26 9.75 3.51 2.92 0.0424 1.08 <0.017 <0.0028 <0.012 <0.0028 <0.015 0.082 0.0055

ML12-8 4.53 4.06 9.6 3.43 2.9 0.0425 0.94 <0.017 0.0041 <0.012 0.0389 <0.015 0.0808 0.0047

ML12-5DUP 22 5.64 20.2 3.84 12.7 0.562 0.2 0.024 <0.0028 <0.012 <0.0028 <0.015 0.168 0.0203

ML12-5 22.3 5.37 20.6 3.83 13 0.565 <0.038 0.008 <0.0028 <0.012 <0.0028 <0.015 0.172 0.0199

ML12-4DUP 77 5.34 20.1 9.59 0.0991 1.18 <0.038 <0.017 0.331 <0.012 <0.0028 <0.015 0.312 0.0473

ML12-4 76.6 5.5 20.4 9.63 0.093 1.19 <0.038 <0.017 0.305 <0.012 0.0023 <0.015 0.314 0.0482

ML12-3DUP 98.7 2.71 14.2 9.9 0.0096 0.329 <0.038 <0.017 1.52 <0.003 <0.0028 <0.015 0.247 0.0453

ML12-3 101 1.96 14.6 10 <0.0003 0.337 <0.038 <0.017 1.56 <0.012 <0.0028 <0.015 0.254 0.0469

ML12-2TRIP 86.4 1.87 12.3 9.15 <0.0003 0.299 <0.038 <0.017 1.35 <0.012 <0.0028 <0.015 0.2 0.037

ML12-2DUP 87 2.21 12.3 9.19 <0.0005 0.299 <0.038 <0.017 1.35 <0.012 <0.0028 <0.015 0.2 0.0365

ML12-2 89.6 1.82 12.7 9.44 0.0099 0.309 <0.038 <0.017 1.38 0.019 <0.0028 <0.015 0.207 0.0374

ML12-1DUP 68.7 1.97 14.6 9.53 0.0031 0.228 <0.038 0.021 0.845 <0.012 <0.0028 <0.015 0.217 0.035

ML12-1 69.7 1.56 14.9 9.67 0.0013 0.236 <0.038 <0.017 0.86 <0.012 <0.0028 <0.015 0.222 0.0357

ML13-10DUP 5.35 6.1 7.68 0.279 0.0068 <0.0042 0.294 <0.017 <0.0028 <0.012 <0.0028 <0.015 0.171 <0.0020

ML13-10 5.46 5.35 8.08 0.213 0.0033 <0.0042 0.328 <0.017 <0.0028 <0.012 <0.0028 <0.015 0.188 0.0021

Table J1 Summary of Cation Results for Duplicates

Sample Session Na K Ca Mg Fe Mn Al As Cr Ni Zn Pb Sr Ba 

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)
142

ML13-9DUP 4.43 5.36 6.91 0.204 0.0033 <0.0042 <0.038 0.018 <0.0028 <0.012 <0.0028 <0.015 0.0602 0.0158

ML13-9 4.43 4.84 6.98 0.179 0 <0.0042 <0.038 <0.017 <0.0028 <0.012 <0.0028 <0.015 0.0607 0.0158

ML13-8DUP 4.08 3.91 5.87 0.095 0.0175 <0.0042 <0.038 <0.017 <0.0028 <0.012 <0.0028 <0.015 0.0711 0.0373

ML13-8 4.02 3.91 5.86 0.137 0.0069 <0.0042 <0.038 <0.017 <0.0028 <0.012 <0.0028 <0.015 0.071 0.0368

ML13-7DUP 3.89 4.55 4.54 0.198 0.0104 <0.0042 <0.038 <0.017 <0.0028 <0.012 <0.0028 <0.015 0.037 0.0265

ML13-7 3.89 3.3 4.57 0.119 0.021 <0.0042 <0.038 <0.017 <0.0028 <0.012 <0.0028 <0.015 0.0379 0.0271

ML13-6TRIP 3.99 3.15 7.73 0.137 0.0033 <0.0042 <0.038 <0.017 <0.0028 <0.012 <0.0028 <0.015 0.0728 0.0106

ML13-6DUP 4.04 3.19 7.85 0.162 0.0068 0.005 <0.038 <0.017 <0.0028 <0.012 <0.0028 <0.015 0.0727 0.0111

ML13-6 26.2 9 19.9 11.5 <0.0004 0.513 <0.038 <0.017 <0.0028 <0.012 0.0022 <0.015 0.283 0.0404

ML13-5DUP 3.66 2.83 8.5 0.146 0.0068 <0.0042 <0.038 <0.017 <0.0028 <0.012 <0.0028 <0.015 0.0763 0.0084

ML13-5 3.69 2.74 8.48 0.171 0.0032 <0.0042 <0.038 <0.017 <0.0028 <0.012 0.0127 <0.015 0.0763 0.0091

ML13-4DUP 4.28 2.01 5.99 0.095 0.0033 0.005 <0.038 <0.017 <0.0028 <0.012 <0.0028 <0.015 0.0383 0.0256

ML13-4 4.29 2.54 5.99 0.145 0.0033 <0.0042 <0.038 <0.017 <0.0028 <0.012 <0.0028 <0.015 0.0381 0.0256

ML13-3DUP 9.31 1.79 5.02 0.518 0.0102 0.007 <0.038 <0.017 <0.0028 <0.012 <0.0028 <0.015 0.0341 0.0111

ML13-3 9.03 2.58 4.87 0.535 0.0226 0.0024 <0.038 0.001 <0.0028 0 0.0175 0.001 0.0326 0.0101

ML13-2DUP Sep-97 25.1 2.48 2.9 0.425 0.0209 0.013 <0.038 <0.017 <0.0028 <0.012 <0.0028 <0.015 0.0257 0.0042

ML13-2 24.1 3.24 3.67 0.467 0.0244 0.009 <0.038 <0.017 <0.0028 <0.012 <0.0028 <0.015 0.0265 0.0039

ML13-1DUP 61.3 4 1.29 0.541 0.0033 <0.0042 <0.038 <0.017 <0.0028 <0.012 <0.0028 <0.015 0.0121 <0.0020

ML13-1 65.4 3.47 1.88 0.781 0.0102 0.0309 <0.038 <0.017 0.0074 <0.012 <0.0028 <0.015 0.0204 <0.0020

ML14-10 2.33 1.63 4.65 0.27 0.001 0.0092 <0.027 <0.027 <0.0033 <0.014 0.0009 <0.020 0.0247 0.0028

ML14-10DUP 2.38 1.06 4.96 0.227 0.013 0.0092 0.032 <0.027 <0.0033 <0.014 <0.0010 <0.020 0.026 0.0023

ML14-9DUP 2.57 2.46 5.26 0.079 <0.011 <0.0076 0.097 <0.027 <0.0033 <0.014 <0.0010 <0.020 0.018 <0.0021

ML14-9 2.65 1.88 5.62 <0.049 <0.011 <0.0076 0.13 <0.027 <0.0033 <0.014 <0.0010 <0.020 0.0194 <0.0021

ML14-8DUP 6.16 1.91 3.05 <0.049 <0.011 <0.0076 0.033 <0.027 <0.0033 <0.014 <0.0010 <0.020 0.0124 <0.0021

ML14-8 6.09 1.94 3.04 <0.049 <0.011 <0.0076 0.054 <0.027 0.0035 <0.014 <0.0010 <0.020 0.0125 <0.0021

ML14-7DUP 6.5 2.23 3.22 <0.049 <0.011 <0.0076 0.054 <0.027 <0.0033 <0.014 0.0012 <0.020 0.0115 <0.0021

ML14-7 6.34 2.44 3.12 <0.049 <0.011 <0.0076 0.065 <0.027 <0.0033 <0.014 <0.0010 <0.020 0.0112 <0.0021

ML14-6DUP 6.15 2.69 2.77 <0.049 0.013 <0.0076 <0.027 <0.027 <0.0033 <0.014 <0.0010 <0.020 0.01 <0.0021

ML14-6 6.38 2.12 2.89 <0.049 <0.011 <0.0076 <0.027 <0.027 <0.0033 <0.014 <0.0010 <0.020 0.0103 <0.0021

ML14-5DUP 7.27 2.25 2.28 0.086 <0.011 <0.0076 0.033 <0.027 <0.0033 <0.014 0.021 <0.020 0.0077 <0.0021

ML14-5 7.28 2.05 2.34 <0.049 <0.011 <0.0076 0.049 <0.027 <0.0033 <0.014 <0.0010 <0.020 0.0077 <0.0021

ML14-4DUP 5.71 2.56 3.19 <0.049 <0.011 <0.0076 <0.027 <0.027 0.0051 <0.014 <0.0010 <0.020 0.0093 0.0047

ML14-4 5.81 2.41 3.19 0.071 <0.011 <0.0076 <0.027 <0.027 <0.0033 <0.014 0.0247 <0.020 0.0093 <0.0021

ML14-3DUP 9.42 2.23 3.98 <0.049 <0.011 <0.0076 <0.027 <0.027 <0.0033 <0.014 <0.0010 <0.020 0.02 <0.0021

ML14-3 9.42 2.43 4.01 <0.049 <0.011 <0.0076 <0.027 <0.027 <0.0033 <0.014 <0.0010 <0.020 0.0198 <0.0021

ML14-2DUP 12.4 2.51 4.09 0.188 <0.011 <0.0076 0.054 <0.027 <0.0033 <0.014 <0.0010 <0.020 0.0326 0.003

ML14-2 12.1 2.77 4.03 0.157 <0.011 <0.0076 0.032 <0.027 <0.0033 <0.014 0.0012 <0.020 0.0319 0.0028

ML14-1DUP 59.1 2.18 2.58 0.21 <0.011 <0.0076 <0.027 <0.027 <0.0033 <0.014 <0.0010 <0.020 0.0231 0.0022

ML14-1 59.5 2.46 2.55 0.21 <0.011 <0.0076 <0.027 <0.027 <0.0033 <0.014 <0.0010 <0.020 0.0228 <0.0021

ML14-0DUP 47.8 1.8 3.18 0.11 <0.011 <0.0076 <0.027 <0.027 <0.0033 <0.014 0.0073 <0.020 0.0248 0.0064

ML14-0 46.4 2.11 3.18 0.129 <0.011 <0.0076 <0.027 <0.027 <0.0033 <0.014 <0.0010 <0.020 0.0246 0.007

ML15-10 4.78 7.94 26.9 2.23 <0.011 0.0578 <0.027 <0.027 <0.0033 <0.014 <0.0010 <0.020 0.251 0.0132

ML15-10DUP 4.69 8.14 26.1 2.19 <0.011 0.056 <0.027 <0.027 <0.0033 <0.014 0.0014 <0.020 0.244 0.0119

ML15-9DUP 5.58 6.9 19.6 1.48 <0.011 0.0599 <0.027 <0.027 <0.0033 <0.014 <0.0010 <0.020 0.171 0.0109

ML15-9 5.58 7.42 19.4 1.48 <0.011 0.0544 <0.027 <0.027 <0.0033 <0.014 <0.0010 <0.020 0.169 0.0105

ML15-8DUP 8.69 5.77 13.7 1.74 0.192 0.191 <0.027 <0.027 <0.0033 <0.014 0.0079 <0.020 0.121 0.0089

ML15-8 8.87 5.88 14 1.8 0.198 0.202 <0.027 <0.027 <0.0033 <0.014 <0.0010 <0.020 0.123 0.0091

ML15-7DUP 8.57 5.39 12.9 2.16 0.365 0.242 <0.027 <0.027 <0.0033 <0.014 <0.0010 <0.020 0.117 0.0091

ML15-7 8.59 5.69 12.9 2.21 0.375 0.242 <0.027 <0.027 <0.0033 <0.014 0.0047 <0.020 0.116 0.0089

Table J1 Summary of Cation Results for Duplicates

Sample Session Na K Ca Mg Fe Mn Al As Cr Ni Zn Pb Sr Ba 

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)
143

ML15-6DUP 11.5 4.06 8.09 1.89 1.93 0.233 0.064 <0.027 <0.0033 <0.014 <0.0010 <0.020 0.0655 0.0076

ML15-6 11.5 3.86 8.11 1.9 1.9 0.233 0.064 <0.027 <0.0033 <0.014 <0.0010 <0.020 0.0656 0.0072

ML15-5DUP 7.8 1.81 1.62 0.877 0.899 0.168 0.915 <0.027 0.0042 <0.014 <0.0010 <0.020 0.0183 0.0049

ML15-5 7.91 2.18 1.73 1.02 1.48 0.177 1.65 <0.027 <0.0033 <0.014 0.0041 <0.020 0.0197 0.0178

ML15-4DUP 7.58 0.91 0.076 0.145 0.464 0.0093 0.629 <0.027 <0.0033 <0.014 <0.0010 <0.020 0.0015 0.0022

ML15-4 7.75 0.01 0.082 0.18 0.806 0.0174 1.06 <0.027 0.0038 <0.014 0.0001 <0.020 0.0017 0.0033

ML15-3DUP 7.42 3.19 0.33 0.316 0.964 0.0219 1.49 <0.027 0.0048 <0.014 0.0029 <0.020 0.0032 0.0057

ML15-3 7.42 3.02 0.318 0.254 0.798 0.0165 1.2 <0.027 <0.0033 <0.014 0.0011 <0.020 0.003 0.0041

ML15-2DUP 32.2 2.5 2.23 1.61 0.078 0.0294 <0.027 <0.027 <0.0033 <0.014 <0.0010 <0.020 0.0166 <0.0021

ML15-2 32.6 2.4 2.25 1.57 0.088 0.0348 <0.027 <0.027 <0.0033 <0.014 <0.0010 <0.020 0.0167 0.0022

ML15-1DUP 35.4 1.89 5.93 3.58 0.283 0.131 <0.027 <0.027 <0.0033 <0.014 <0.0010 <0.020 0.0726 0.0086

ML15-1 34.9 2.07 5.83 3.52 0.29 0.131 <0.027 <0.027 <0.0033 <0.014 <0.0010 <0.020 0.0715 0.0082

ML15-0DUP 35.9 2.11 5.22 3.12 0.542 0.133 <0.027 <0.027 <0.0033 <0.014 <0.0010 <0.020 0.065 0.0077

ML15-0 36.8 1.81 5.44 3.25 0.512 0.133 <0.027 <0.027 <0.0033 <0.014 0.0015 <0.020 0.068 0.0078

ML31-10 20.1 5.28 35.2 7.09 0.019 0.453 <0.027 <0.027 <0.0033 <0.014 0.0419 <0.020 0.391 0.0249

ML31-10DUP 19.9 5.27 34.9 7.15 0.016 0.455 <0.027 <0.027 <0.0033 <0.014 <0.0010 <0.020 0.389 0.0251

ML31-9DUP 26 5.59 48.3 5.17 <0.011 0.449 <0.027 <0.027 <0.0033 <0.014 0.0071 <0.020 0.618 0.0339

ML31-9 25.7 5.71 47.8 5.16 <0.011 0.445 <0.027 <0.027 <0.0033 <0.014 <0.0010 <0.020 0.612 0.0342

ML31-8DUP 15.3 6 21.6 9.05 <0.011 0.506 <0.027 <0.027 <0.0033 <0.014 0.0048 <0.020 0.23 0.0245

ML31-8 15.2 5.37 21.4 8.94 <0.011 0.503 0.029 <0.027 <0.0033 <0.014 0.0042 <0.020 0.228 0.0243

ML31-7DUP 25.2 7.37 28.8 10.8 <0.011 0.725 <0.027 <0.027 <0.0033 <0.014 0.0206 <0.020 0.295 0.0376

ML31-7 25.3 7.53 29.3 10.9 <0.011 0.747 <0.027 <0.027 <0.0033 <0.014 <0.0010 <0.020 0.299 0.0441

ML31-5BDUP Sep-97 84.1 3.81 26.8 16.5 <0.011 1.04 <0.027 <0.027 0.0642 <0.014 0.0013 <0.020 0.392 0.0728

ML31-5B 82.6 4.07 26.4 16.1 <0.011 1.02 <0.027 <0.027 0.0608 <0.014 <0.0010 <0.020 0.385 0.0709

ML31-5DUP 85.1 3.87 27.2 16.6 <0.011 1.08 <0.027 <0.027 0.0621 <0.014 0.0039 <0.020 0.397 0.0728

ML31-5 84.4 4.08 27.1 16.6 <0.011 1.08 <0.027 <0.027 0.0615 <0.014 0.0018 <0.020 0.396 0.0722

ML31-4DUP 90.7 2.84 27 18.2 <0.011 0.458 <0.027 <0.027 0.0793 <0.014 0.0064 <0.020 0.396 0.0662

ML31-4 91.8 2.78 27.4 18.5 <0.011 0.464 <0.027 <0.027 0.0784 <0.014 0.0031 <0.020 0.403 0.0666

ML31-3DUP 46.7 1.91 16.4 10 <0.011 0.238 <0.027 <0.027 0.0452 <0.014 <0.0010 <0.020 0.218 0.0288

ML31-3 46.4 2.19 16.3 9.94 <0.011 0.236 <0.027 <0.027 0.0408 <0.014 0.0004 <0.020 0.216 0.0289

ML31-2DUP 27.6 1.52 10.2 6.07 <0.011 0.1 <0.027 <0.027 0.0472 <0.014 0.0015 <0.020 0.135 0.0177

ML31-2 27.5 1.75 10 5.99 <0.011 0.096 <0.027 <0.027 0.0467 <0.014 0.0011 <0.020 0.133 0.0167

ML31-1DUP 27.1 1.57 9.82 5.82 <0.011 0.096 <0.027 <0.027 0.0451 <0.014 <0.0010 <0.020 0.13 0.0163

ML31-1 27.1 1.35 9.97 5.89 <0.011 0.096 <0.027 <0.027 0.0407 <0.014 <0.0010 <0.020 0.131 0.0154

ML31-0DUP 21.8 1.29 10.2 6.15 <0.011 0.0564 <0.027 <0.027 <0.0033 <0.014 <0.0010 <0.020 0.123 0.0104

ML31-0 21.5 1.53 10.1 6.1 <0.011 0.0655 <0.027 <0.027 <0.0033 <0.014 0.0031 <0.020 0.122 0.0144

ML32-9DUP 8.86 15.4 21.6 1.77 <0.0067 0.0013 <0.023 <0.012 <0.0042 0.0097 0.0101 <0.015 0.19 0.0169

ML32-9 8.87 15.2 21.5 1.76 <0.0067 <0.0013 <0.023 <0.012 <0.0042 <0.0076 <0.0013 <0.015 0.19 0.0167

ML32-8DUP 13.1 5.4 34.6 2.47 2.75 0.0337 <0.023 <0.012 <0.0042 <0.0076 0.0051 <0.015 0.288 0.0145

ML32-8 13.1 4.7 35.1 2.44 2.81 0.03 <0.023 <0.012 <0.0042 <0.0076 0.0019 <0.015 0.292 0.0147

ML32-7DUP 12.8 5.19 28.8 2.03 13.3 0.108 <0.023 0.015 <0.0042 <0.0076 <0.0013 <0.015 0.368 0.0132

ML32-7 12.8 4.94 29.1 2.03 13.4 0.108 <0.023 <0.012 <0.0042 <0.0076 0.0058 <0.015 0.373 0.0127

ML32-6DUP 11.5 4.75 26 1.67 16.1 0.201 <0.023 0.021 <0.0042 <0.0076 <0.0013 <0.015 0.321 0.0138

ML32-6 11.6 4.55 26.3 1.67 16.3 0.207 <0.023 0.028 <0.0042 <0.0076 <0.0013 <0.015 0.324 0.0151

ML32-5DUP 31.8 5.18 27.6 5.69 2.34 1.31 <0.023 <0.012 <0.0042 <0.0076 0.063 <0.015 0.254 0.0254

ML32-5 31.5 5.32 27.2 5.68 2.37 1.3 <0.023 <0.012 <0.0042 <0.0076 <0.0013 <0.015 0.251 0.0246

ML32-4DUP 45.7 4.89 23.2 9.12 0.0162 1.45 <0.023 <0.012 0.0569 <0.0076 0.0192 <0.015 0.243 0.0412

ML32-4 45.1 4.68 22.4 8.76 <0.0067 1.41 <0.023 <0.012 0.0554 <0.0076 0.0935 <0.015 0.234 0.0399

Table J1 Summary of Cation Results for Duplicates

Sample Session Na K Ca Mg Fe Mn Al As Cr Ni Zn Pb Sr Ba 

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)
144

ML32-3DUP 39.8 1.47 9.19 6.48 <0.0067 0.14 <0.023 <0.012 0.109 <0.0076 <0.0013 <0.015 0.14 0.0231

ML32-3 40.5 1.43 9.3 6.6 <0.0067 0.142 0.028 <0.012 0.109 <0.0076 0.0164 <0.015 0.142 0.0234

ML32-2DUP 27.2 <0.90 9.25 5.66 <0.0074 0.137 <0.028 <0.020 0.102 <0.014 <0.0022 <0.017 0.126 0.0164

ML32-2 26.7 <0.90 9.06 5.55 <0.0074 0.135 <0.028 <0.020 0.1 <0.014 <0.0022 <0.017 0.123 0.0162

ML32-1DUP 26.5 1.1 9.59 5.5 <0.0067 0.0558 <0.023 <0.012 0.0385 <0.0076 0.0103 <0.015 0.129 0.0143

ML32-1 26.3 1.69 9.48 5.46 <0.0067 0.0558 <0.023 <0.012 0.0402 <0.0076 0.0156 <0.015 0.127 0.0143

ML32-0DUP 17.8 0.68 8.46 5.18 0.335 0.0847 <0.023 <0.012 <0.0042 <0.0076 <0.0013 <0.015 0.102 0.0067

ML32-0 17.6 0.84 8.43 5.19 0.43 0.0955 0.007 <0.012 <0.0042 <0.0076 0.0105 <0.015 0.101 0.0076

ML33-10 24.7 12.8 103 0.014 <0.0067 <0.0013 8.7 <0.013 <0.0042 0.0125 <0.0013 <0.016 6.07 0.0287

ML33-10DUP 23.7 13 98.6 0.072 <0.0067 <0.0013 8.2 <0.013 <0.0042 0.0134 <0.0013 <0.016 5.77 0.0265

ML33-9DUP 15.9 3.4 14.3 1.31 0.0485 0.0413 0.027 <0.012 <0.0042 <0.0076 <0.0013 <0.015 0.1 <0.0024

ML33-9 15.3 3.88 13.9 1.29 0.055 0.0413 <0.023 <0.012 <0.0042 <0.0076 <0.0013 <0.015 0.0964 <0.0024

ML33-8DUP 10.9 5.34 32.4 0.235 <0.0067 <0.0013 0.245 <0.012 <0.0042 <0.0076 <0.0013 <0.015 0.248 <0.0024

ML33-8 10.9 5.48 32.1 0.312 <0.0067 <0.0013 0.235 <0.012 <0.0042 <0.0076 <0.0013 <0.015 0.252 <0.0024

ML33-7DUP 12.8 6.57 27.7 2.52 6.23 0.285 <0.023 <0.012 <0.0042 <0.0076 <0.0013 <0.015 0.288 0.0131

ML33-7 12.9 6.47 28.2 2.53 6.37 0.288 <0.023 <0.012 <0.0042 <0.0076 0.0028 <0.015 0.293 0.0139

ML33-6DUP 13.4 4.78 25.3 2.95 0.241 0.105 <0.023 <0.012 <0.0042 <0.0076 <0.0013 <0.015 0.235 0.0037

ML33-6 13.5 4.85 25.1 2.93 0.241 0.107 <0.023 <0.012 <0.0042 <0.0076 0.0028 <0.015 0.233 0.0033

ML33-5DUP 17.3 4.28 17.8 2.71 0.0706 0.0736 <0.023 <0.012 <0.0042 <0.0076 <0.0013 <0.015 0.201 <0.0024

ML33-5 17.6 4.02 18.2 2.76 0.0754 0.0808 <0.023 <0.012 <0.0042 <0.0076 <0.0013 <0.015 0.206 <0.0024

ML33-4DUP 16.7 3.6 21.8 4.19 0.338 0.136 <0.023 <0.012 <0.0042 <0.0076 0.0036 <0.015 0.191 <0.0024

ML33-4 16.4 3.73 21.2 4.05 0.302 0.129 <0.023 <0.012 <0.0042 <0.0076 <0.0013 <0.015 0.186 0.003

ML33-3DUP 30.4 2.48 8.44 2.88 2.46 0.314 0.028 <0.012 <0.0042 <0.0076 <0.0013 <0.015 0.0761 0.0028

ML33-3 30.6 2.14 8.63 2.91 2.57 0.323 0.059 <0.012 <0.0042 <0.0076 0.0027 <0.015 0.0784 0.0028

ML33-2ADUP 33.9 1.93 6.93 2.41 1.61 0.238 <0.023 0.015 <0.0042 <0.0076 <0.0013 <0.015 0.0608 <0.0024

ML33-2A 34.6 2.04 7.08 2.46 1.63 0.238 <0.023 <0.012 <0.0042 <0.0076 0.0126 <0.015 0.062 <0.0024

ML33-2DUP 33.8 2.26 12.8 4.6 4.9 0.503 <0.023 <0.012 <0.0042 0.0252 0.0087 <0.015 0.112 0.0045

ML33-2 34 2.5 13.1 4.76 5.09 0.518 <0.023 <0.012 <0.0042 <0.0076 <0.0013 <0.015 0.115 0.0049

ML33-1DUP 29.2 1.72 2.22 0.342 <0.0067 <0.0013 0.05 <0.012 <0.0042 0.0097 <0.0013 <0.015 0.0216 <0.0024

ML33-1 28.6 2.23 2.25 0.349 <0.0067 0.0003 0.045 0.002 <0.0042 <0.0076 0.0004 <0.015 0.0214 <0.0024

ML33-0DUP Sep-97 18.2 1.67 4.1 0.158 <0.0067 <0.0013 0.04 <0.012 <0.0042 <0.0076 <0.0013 <0.015 0.0551 <0.0024

ML33-0 18 2.06 4.04 0.174 <0.0067 <0.0013 <0.023 <0.012 <0.0042 <0.0076 <0.0013 <0.015 0.0541 <0.0024

ML34-6DUP 14.2 1.71 3.02 0.578 1.01 0.016 1.67 <0.012 <0.0042 <0.0076 <0.0013 <0.015 0.0163 0.0048

ML34-6 14.2 1.43 2.96 0.486 0.695 0.0107 1.26 <0.012 <0.0042 <0.0076 <0.0013 <0.015 0.0156 0.0032

ML34-5DUP 19 1.46 3.22 0.288 <0.0067 <0.0013 0.071 <0.012 <0.0042 <0.0076 <0.0013 <0.015 0.0166 <0.0024

ML34-5 18.8 1.48 3.18 0.288 0.0232 0.0037 0.145 0.018 <0.0042 <0.0076 0.0063 <0.015 0.0166 <0.0024

ML34-4DDUP 22.7 2.09 1.99 0.748 0.007 0.011 <0.023 <0.012 <0.0042 <0.0076 <0.0013 <0.015 0.0138 <0.0024

ML34-4D 22.7 2.09 1.98 0.748 0.0102 0.011 0.04 <0.012 <0.0042 <0.0076 <0.0013 <0.015 0.0139 <0.0024

ML34-4DUP 24.1 1.98 1.63 0.602 <0.0067 0.0056 0.04 <0.012 <0.0042 <0.0076 <0.0013 <0.015 0.0119 <0.0024

ML34-4 25 2.07 1.64 0.659 0.318 0.0109 0.627 <0.012 <0.0042 <0.0076 <0.0013 <0.015 0.0126 <0.0024

ML34-3DUP 28.6 3.35 8.24 1.17 0.0487 0.0324 <0.023 <0.012 <0.0042 <0.0076 <0.0013 <0.015 0.0634 0.0028

ML34-3 29 3.65 8.33 1.21 0.0261 0.0324 <0.023 <0.012 <0.0042 0.009 <0.0013 <0.015 0.0638 0.0036

ML34-2DUP 31.7 2.67 3.9 0.642 <0.0067 <0.0013 0.134 <0.012 <0.0042 <0.0076 <0.0013 <0.015 0.0311 <0.0024

ML34-2 31.5 2.57 3.76 0.558 <0.0067 <0.0013 0.103 <0.012 <0.0042 <0.0076 <0.0013 <0.015 0.0307 <0.0024

ML34-1DUP 26.2 2.54 1.25 0.187 <0.0067 <0.0013 0.145 <0.012 <0.0042 <0.0076 <0.0013 <0.015 0.0134 <0.0024

ML34-1 26.1 2.7 1.23 0.21 <0.0067 <0.0013 0.166 0.015 <0.0042 <0.0076 0.0014 0.018 0.0133 <0.0024

ML34-0DUP 22.3 2.28 2.8 0.111 <0.0067 <0.0013 <0.023 <0.012 <0.0042 <0.0076 <0.0013 <0.015 0.0382 0.0038

ML34-0 21.8 2.69 2.77 0.096 0.0072 <0.0013 0.029 <0.012 <0.0042 <0.0076 <0.0013 <0.015 0.0396 0.0036

Table J1 Summary of Cation Results for Duplicates

Sample Session Na K Ca Mg Fe Mn Al As Cr Ni Zn Pb Sr Ba 

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)
145

ML35-10 32.8 6.24 18.8 3.27 0.893 0.551 <0.023 <0.012 <0.0042 <0.0076 <0.0013 <0.015 0.159 0.0116

ML35-10DUP 32.8 6.06 18.7 3.28 0.893 0.56 <0.023 <0.012 <0.0042 <0.0076 0.0112 <0.015 0.159 0.0122

ML35-9DUP 22.7 5.2 14.4 2.28 1.48 0.382 <0.023 0.052 <0.0042 <0.0076 0.0028 <0.015 0.131 0.0105

ML35-9 22.8 5.39 13.3 2.23 1.47 0.377 <0.023 0.045 <0.0042 <0.0076 <0.0013 <0.015 0.128 0.0097

ML35-8DUP 17.4 4.94 11.4 2.56 1.2 0.618 <0.023 0.043 <0.0042 <0.0076 0.0024 <0.015 0.1 0.0103

ML35-8 17.3 4.94 11.4 2.54 1.18 0.614 <0.023 0.039 <0.0042 <0.0076 0.0006 <0.015 0.099 0.0106

ML35-7DUP 14.4 4.88 12.9 3.47 0.365 0.846 <0.023 <0.012 <0.0042 <0.0076 <0.0013 <0.015 0.099 0.0102

ML35-7 14.6 5.01 13 3.51 0.365 0.847 <0.023 <0.012 <0.0042 <0.0076 <0.0013 <0.015 0.1 0.0108

ML35-6DUP 14.5 4.11 14.4 3.62 0.0776 0.93 0.037 <0.012 <0.0042 <0.0076 <0.0013 <0.015 0.0989 0.0123

ML35-6 14.2 4.51 14.1 3.59 0.0745 0.914 <0.023 <0.012 <0.0042 <0.0076 <0.0013 <0.015 0.0967 0.0112

ML35-5DUP 30.2 2.93 4.81 1.94 0.442 0.333 <0.023 0.019 <0.0042 <0.0076 <0.0013 <0.015 0.0457 0.0049

ML35-5 30 3.26 4.77 1.96 0.427 0.33 <0.023 0.007 <0.0042 <0.0076 <0.0013 <0.015 0.0453 0.0048

ML35-4DUP 25.8 1.95 2.9 1.32 0.439 0.0958 <0.023 0.021 <0.0042 <0.0076 0.0055 <0.015 0.0228 <0.0024

ML35-4 25.3 1.92 2.82 1.29 0.43 0.0922 <0.023 0.032 <0.0042 <0.0076 <0.0013 <0.015 0.0224 <0.0024

ML35-3DUP 42.4 2.28 5 3.26 0.361 0.0578 <0.023 0.021 <0.0042 <0.0076 <0.0013 <0.015 0.0712 <0.0024

ML35-3 42 2.27 5.05 3.24 0.371 0.0578 <0.023 0.019 <0.0042 <0.0076 <0.0013 <0.015 0.0712 <0.0024

ML35-2DUP 39.4 1.13 6.09 2.75 0.549 0.0939 <0.023 0.026 <0.0042 <0.0076 <0.0013 <0.015 0.0564 <0.0024

ML35-2 38.8 1.28 6.02 2.7 0.545 0.0903 <0.023 0.018 <0.0042 <0.0076 <0.0013 <0.015 0.0555 <0.0024

ML35-1DUP 26.6 1.23 2.41 0.94 0.0942 0.0091 0.155 <0.012 <0.0042 <0.0076 <0.0013 <0.015 0.0267 <0.0024

ML35-1 26.5 1.28 2.41 0.925 0.207 0.0109 0.239 0.015 <0.0042 <0.0076 <0.0013 <0.015 0.0268 <0.0024

ML35-0DUP 19 0.81 2.52 1.23 0.846 0.214 <0.023 0.022 <0.0042 <0.0076 0.0278 <0.015 0.0272 <0.0024

ML35-0 18.4 1.56 2.5 1.22 0.822 0.211 <0.023 0.002 <0.0042 <0.0076 <0.0013 <0.015 0.0264 <0.0024

ML11-10B Mar-98 14.1 7.37 22.1 10.7 3.34 0.726 <0.036 <0.020 <0.0025 <0.015 <0.016 0.0062 0.249 0.0184

ML11-10A 13.4 6.82 21.3 10.3 3.35 0.707 <0.036 <0.020 <0.0025 <0.015 <0.016 <0.0060 0.24 0.0188

ML11-9B 12.1 4.72 25.5 6.92 5.72 1 <0.036 <0.020 <0.0025 <0.015 <0.016 <0.0060 0.256 0.0156

ML11-9A 12 5.08 25.2 6.86 5.68 0.993 <0.036 <0.020 <0.0025 <0.015 <0.016 <0.0060 0.252 0.0156

ML11-8B 11.4 4.2 24.6 7.07 2.52 1.06 <0.036 <0.020 <0.0025 <0.015 <0.016 <0.0060 0.248 0.0145

ML11-8A 11.6 3.87 24.7 7.12 2.54 1.06 <0.036 <0.020 <0.0025 <0.015 <0.016 0.0061 0.25 0.0145

ML11-7B 12.6 3.9 25.9 7.47 1.04 1.57 <0.036 <0.020 <0.0025 <0.015 <0.016 <0.0060 0.27 0.0201

ML11-7A 12.6 4.1 25.7 7.45 1.02 1.56 <0.036 <0.020 <0.0025 <0.015 <0.016 <0.0060 0.268 0.0206

ML11-6B 49.5 6.07 34 13.2 <0.0063 3.63 <0.036 <0.021 0.149 <0.015 <0.016 <0.0060 0.502 0.0589

ML11-6A 49.7 6.36 34.3 13.3 0.0003 3.66 <0.036 <0.021 0.146 <0.015 <0.016 <0.0060 0.504 0.0599

ML11-5B 52.3 5.77 34.1 15.2 <0.0063 3.31 <0.036 <0.020 0.121 <0.015 <0.016 <0.0060 0.545 0.0754

ML11-5A 52.2 6.3 33.5 15 <0.0063 3.25 <0.036 <0.020 0.122 <0.015 <0.016 <0.0060 0.534 0.0742

ML11-4C 72 1.22 8.17 5.76 <0.0062 0.159 <0.036 <0.020 1.2 <0.015 <0.016 <0.0060 0.144 0.0277

ML11-4B 73 1.17 8.19 5.82 0.0118 0.156 <0.036 <0.020 1.21 <0.015 <0.016 <0.0060 0.145 0.0274

ML11-4A 73.5 <0.86 8.29 5.82 <0.0062 0.16 <0.036 <0.020 1.21 <0.015 <0.016 <0.0060 0.148 0.0279

ML12-4B Mar-98 69 2.67 15.4 9.15 <0.0062 0.764 <0.036 <0.020 0.7 <0.015 <0.016 0.008 0.258 0.0413

ML12-4A 68.2 2.36 15.5 9.24 <0.0062 0.77 <0.036 <0.020 0.691 <0.015 <0.016 <0.0060 0.26 0.0416

ML13-4B 4.74 1.54 4.92 0.16 0.0142 0.012 <0.036 <0.020 0.0026 <0.015 <0.016 0.006 0.0386 0.016

ML13-4A 4.64 1.43 4.89 0.152 0.0106 0.012 <0.036 <0.020 <0.0025 <0.015 <0.016 0.0134 0.0382 0.0162

ML14-4B 3.86 1.9 3.06 <0.050 <0.034 0 <0.031 <0.025 <0.0024 <0.0080 <0.0017 <0.0091 0.0101 <0.0036

ML14-4A 3.81 1.5 3.02 <0.050 <0.034 0 <0.031 <0.025 <0.0024 <0.0080 <0.0017 <0.0091 0.0101 <0.0036

ML15-4B 10.2 1.17 0.3 0.117 0.042 0.0292 <0.031 <0.025 <0.0024 <0.0080 <0.0017 <0.0091 0.0047 <0.0036

ML15-4A 9.9 1.35 0.3 0.157 0.035 0.0331 <0.031 <0.025 <0.0024 <0.0080 <0.0017 <0.0091 0.0044 <0.0036

ML15-3B 12.7 1.3 0.93 <0.050 <0.034 0 0.231 <0.025 <0.0024 <0.0080 <0.0017 0.0019 0.0037 <0.0036

ML15-3A 12.6 1.53 0.923 <0.050 <0.034 0 0.231 <0.025 <0.0024 <0.0080 <0.0017 <0.0091 0.0035 <0.0036

ML15-2DUP 44.3 3.38 4.74 3.36 <0.034 0.0329 <0.031 <0.025 <0.0024 <0.0080 <0.0017 <0.0091 0.0393 <0.0036

ML15-2B 43.1 2.96 4.81 3.42 <0.034 0.0329 <0.031 <0.025 0.0027 <0.0080 <0.0017 <0.0091 0.0399 <0.0036

ML15-2A 43.3 3.54 4.66 3.33 <0.034 0.029 <0.031 <0.025 <0.0024 <0.0080 <0.0017 <0.0091 0.0383 <0.0036

Table J1 Summary of Cation Results for Duplicates

Sample Session Na K Ca Mg Fe Mn Al As Cr Ni Zn Pb Sr Ba 

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)
146

ML15-1B 56.7 <0.88 1.46 0.818 0.51 0.0876 0.283 <0.025 <0.0024 <0.0080 0.0086 <0.0091 0.0179 <0.0036

ML15-1A 55.2 0.5 1.39 0.791 0.505 0.0877 0.402 0.036 <0.0053 0.0072 0.0019 <0.0078 0.0168 0.0035

ML15-0B 33.5 <0.88 6.68 4.03 0.55 0.196 <0.031 <0.025 <0.0024 <0.0080 0.0031 0.0104 0.0852 0.0079

ML15-0A 33.8 <0.88 6.67 4.06 0.536 0.198 <0.031 <0.025 <0.0024 <0.0080 0.0027 <0.0091 0.0855 0.0077

ML31-10B 22.1 2.9 39 7.11 0.0113 0.537 0.04 <0.024 <0.0041 0.0107 0.0068 <0.020 0.504 0.0258

ML31-10A 21.5 3.3 38.4 7.1 0.0077 0.531 <0.027 <0.024 <0.0041 <0.0088 0.0084 <0.020 0.494 0.0246

ML31-9B 22.8 4.3 30.4 10.01 <0.0036 0.66 <0.027 <0.024 <0.0041 <0.0088 0.0062 <0.020 0.387 0.0298

ML31-9A 22.8 4.1 30 9.96 <0.0036 0.652 0.03 <0.024 <0.0041 <0.0088 0.006 <0.020 0.383 0.0305

ML31-8B 31.8 5.8 32.6 11.8 <0.0036 1.07 <0.027 0.033 <0.0041 0.0126 0.006 <0.020 0.352 0.042

ML31-8A 32.9 5.5 33.5 12.1 0.0047 1.09 <0.027 <0.024 <0.0041 <0.0088 0.0068 <0.020 0.362 0.0433

ML31-7B 47.8 6.3 36.1 17.5 <0.0036 1.14 <0.027 <0.024 <0.0041 <0.0088 0.0069 <0.020 0.488 0.059

ML31-7A 46 6.9 35 17 <0.0036 1.11 <0.027 <0.024 <0.0041 <0.0088 0.007 <0.020 0.471 0.0567

ML31-6D-A 55.4 7.14 34.5 20.1 <0.034 1.03 <0.031 <0.025 <0.0024 <0.0080 <0.0017 <0.0091 0.53 0.0791

ML31-6C 54 7.52 33.9 19.8 <0.034 1.01 <0.031 <0.025 0.0036 <0.0080 0.003 <0.0091 0.52 0.0782

ML31-6B 56.3 6.9 34.8 20.2 <0.034 1.05 <0.031 <0.025 0.0028 <0.0080 0.0024 <0.0091 0.536 0.0805

ML31-6A 54.5 7.03 34.3 20 <0.034 1.02 <0.031 <0.025 0.0044 <0.0080 <0.0017 <0.0091 0.528 0.0787

ML31-5B 66.7 1.92 20.3 12.6 <0.034 0.792 <0.031 <0.025 0.0707 <0.0080 0.0037 <0.0091 0.319 0.0548

ML31-5A 68.7 1.56 20.7 12.8 <0.034 0.809 <0.031 <0.025 0.0738 <0.0080 0.0037 <0.0091 0.326 0.0562

ML31-4B-B 0.24 <0.88 <0.042 <0.050 <0.034 0 <0.031 <0.025 <0.0024 <0.0080 0.0052 <0.0091 0.0002 <0.0036

ML31-4B-A 0.29 <0.88 <0.042 <0.050 <0.034 0 <0.031 <0.025 <0.0024 <0.0080 <0.0017 <0.0091 0.0002 <0.0036

ML31-4B 38.9 1.12 14.5 9.9 <0.034 0.244 <0.031 <0.025 0.0391 <0.0080 0.0022 <0.0091 0.218 0.0275

ML31-4A 40.2 <0.88 14.9 10.2 <0.034 0.256 <0.031 <0.025 0.0382 <0.0080 0.0018 <0.0091 0.227 0.0296

ML31-3B 25.9 1.1 12.5 7.63 <0.57 0.191 <0.10 <0.0095 0.0196 <0.0094 0.0073 <0.019 0.174 0.0186

ML31-3A 25.7 1.01 12.8 7.83 <0.034 0.192 <0.031 <0.025 0.0181 <0.0080 0.0031 <0.0091 0.177 0.0199

ML31-2B 22.4 1.03 10.8 6.55 <0.034 0.117 <0.031 <0.025 0.077 <0.0080 0.0041 <0.0091 0.152 0.0191

ML31-2A 23.3 <0.88 11.2 6.75 <0.034 0.12 <0.031 <0.025 0.0791 <0.0080 0.004 <0.0091 0.158 0.0176

ML31-1B(3/12/98) 22.3 1.14 10.8 6.55 <0.034 0.114 <0.031 <0.025 0.0786 <0.0080 <0.0017 <0.0091 0.152 0.0172

ML31-1A(3/12/98) 22.5 <0.88 10.9 6.63 <0.034 0.114 <0.031 <0.025 0.08 <0.0080 <0.0017 <0.0091 0.155 0.0172

ML31-0B 18.7 <0.88 9.12 5.46 <0.034 0.0814 <0.031 <0.025 <0.0024 <0.0080 0.0034 0.0209 0.116 0.0071

ML31-0A 18.3 <0.88 8.98 5.43 <0.034 0.0795 <0.031 <0.025 <0.0024 <0.0080 0.0046 <0.0091 0.115 0.0069

ML32-10B 13.6 6.9 35.2 2.2 <0.0036 <0.0015 0.041 0.03 <0.0041 <0.0088 0.0035 <0.020 0.329 0.0076

ML32-10A 13.8 6.6 36 2.21 <0.0036 <0.0015 <0.027 <0.024 <0.0041 <0.0088 <0.0023 <0.020 0.339 0.0076

ML32-9B 8.13 10.1 29.7 2.14 <0.0036 <0.0015 <0.027 <0.024 <0.0041 <0.0088 0.0034 <0.020 0.303 0.018

ML32-9A 8.01 9.9 29.4 2.11 <0.0036 <0.0015 <0.027 <0.024 <0.0041 <0.0088 0.0041 <0.020 0.3 0.0169

ML32-8B 23.2 2.7 44.3 5.4 2.72 0.0475 0.028 <0.024 <0.0041 0.0089 0.0028 <0.020 0.623 0.0193

ML32-8A 22.6 2.8 42.9 5.26 2.65 0.0476 <0.027 <0.024 <0.0041 <0.0088 <0.0023 <0.020 0.605 0.0184

ML32-7B 15.8 3.7 35.8 2.6 17.4 0.161 0.04 <0.024 <0.0041 <0.0088 0.004 <0.020 0.509 0.0153

ML32-7A 16 2.9 36.4 2.63 17.8 0.165 <0.027 <0.024 <0.0041 0.013 0.0043 <0.020 0.52 0.0153

ML32-6B-B 0.122 <1.6 <0.035 <0.10 0.0157 <0.0015 0.035 <0.024 <0.0041 <0.0088 0.0096 <0.020 0.0013 <0.0030

ML32-6B-A 0.15 <1.6 <0.035 <0.10 0.0268 <0.0015 <0.027 <0.024 <0.0041 <0.0088 0.0074 <0.020 0.0017 <0.0030

ML32-6B 17.7 3.8 32.7 3.56 18.4 0.651 0.029 0.032 <0.0041 <0.0088 0.0041 <0.020 0.425 0.0214

ML32-6A 17.6 3.1 32.7 3.59 18.6 0.655 0.04 0.047 <0.0041 <0.0088 <0.0023 <0.020 0.428 0.0221

ML32-5B 43.8 4.3 35.1 8.93 1.29 1.99 <0.027 <0.024 0.0182 <0.0088 0.0042 <0.020 0.373 0.0422

ML32-5A 44.5 4 35.2 8.98 1.36 1.99 0.039 <0.024 0.0246 <0.0088 0.0043 <0.020 0.374 0.042

ML32-4B Mar-98 70.8 2.5 24.4 12.2 0.0146 1.53 0.03 <0.024 0.0826 <0.0088 0.0077 <0.020 0.327 0.0584

ML32-4A 70.9 2.6 24.5 12.3 0.011 1.52 0.03 <0.024 0.0829 <0.0088 0.0065 <0.020 0.327 0.0582

ML32-3D-B 55.3 <1.6 18.1 12.6 <0.0036 0.307 <0.027 <0.024 0.0993 <0.0088 0.006 <0.020 0.295 0.0457

ML32-3D-A 54.6 <1.6 18.1 12.7 <0.0036 0.309 <0.027 <0.024 0.102 0.0093 0.007 <0.020 0.295 0.0455

ML32-3B 54 <1.6 17.7 12.5 <0.0036 0.307 <0.027 <0.024 0.0992 <0.0088 0.008 <0.020 0.288 0.045

ML32-3A 55.5 <1.6 18.2 12.8 <0.0036 0.313 <0.027 <0.024 0.103 <0.0088 0.006 <0.020 0.296 0.0464

Table J1 Summary of Cation Results for Duplicates

Sample Session Na K Ca Mg Fe Mn Al As Cr Ni Zn Pb Sr Ba 

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)
147

ML32-2B 22.6 <1.6 11.3 6.96 <0.0036 0.166 0.056 <0.024 0.0696 <0.0088 0.0048 <0.020 0.161 0.0197

ML32-2A 22.3 <1.6 11.1 6.89 <0.0036 0.164 <0.027 <0.024 0.0641 <0.0088 0.0044 <0.020 0.157 0.0197

ML32-1B 23.7 <1.6 10.1 5.8 <0.0036 0.0728 <0.027 <0.024 0.0531 0.0021 0.0077 <0.020 0.147 0.0174

ML32-1A 24.4 <1.6 10.3 5.85 <0.0036 0.0728 <0.027 <0.024 0.0579 <0.0088 0.007 <0.020 0.152 0.0161

ML33-10B 26.7 7.5 74.5 <0.10 0.0064 <0.0016 4.55 0.045 <0.0041 <0.0088 <0.0023 <0.020 2.73 0.0185

ML33-10A 26.9 10.3 81.4 <0.10 0.01 <0.0016 4.48 <0.024 <0.0041 <0.0088 <0.0023 <0.020 2.75 0.026

ML33-9B 15.3 2.8 32.6 2.86 0.505 0.145 <0.027 <0.024 <0.0041 <0.0088 <0.0023 <0.020 0.253 0.0077

ML33-9A 15.6 2.6 32.9 2.9 0.535 0.153 <0.027 <0.024 <0.0041 <0.0088 <0.0023 <0.020 0.258 0.0077

ML33-8B 17.8 4.3 39.7 3.26 15.2 0.251 <0.027 <0.024 <0.0041 <0.0088 0.0026 0 0.403 0.0237

ML33-8A 14.2 5.5 37.4 2.87 7.06 0.299 0.04 <0.024 <0.0041 <0.0088 0.0032 <0.020 0.499 0.0109

ML33-7D-B 14.1 5.3 37.3 2.84 7.04 0.285 0.074 <0.024 <0.0041 0.0138 <0.0023 <0.020 0.495 0.0112

ML33-7D-A 17.8 4.4 39.6 3.25 15.1 0.244 <0.027 <0.024 <0.0041 <0.0088 <0.0023 <0.020 0.401 0.0236

ML33-7B 18.2 4.4 41.9 3.42 17.2 0.294 <0.027 <0.024 <0.0041 <0.0088 <0.0023 <0.020 0.428 0.024

ML33-7A 18.4 4.2 42.1 3.35 17.3 0.296 <0.027 <0.024 <0.0041 0.0139 <0.0023 <0.020 0.432 0.0249

ML33-6B 15.5 3.8 43.5 4.93 14.5 0.81 <0.027 <0.024 <0.0041 0.0122 <0.0023 <0.020 0.458 0.0167

ML33-6A 15.8 3.9 44.3 5.06 14.6 0.822 <0.027 <0.024 <0.0041 <0.0088 <0.0023 <0.020 0.464 0.0161

ML33-5B 16.6 2.4 48.5 7.2 4.17 0.984 <0.027 <0.024 <0.0041 <0.0088 <0.0023 <0.020 0.549 0.01

ML33-5A 16.1 3 46.6 6.93 3.97 0.943 <0.027 <0.024 <0.0041 <0.0088 <0.0023 <0.020 0.525 0.01

ML33-4B 29.1 2.6 49.8 10.7 3.06 0.864 <0.027 <0.024 <0.0041 <0.0088 <0.0023 <0.020 0.52 0.011

ML33-4A 30.1 2.1 50.5 10.9 3.16 0.892 <0.027 0.028 <0.0041 <0.0088 <0.0023 <0.020 0.529 0.0119

ML33-3B-B 1.12 <1.6 0.003 <0.10 0.0175 <0.0015 0.035 <0.024 <0.0041 0.0036 0.0056 <0.020 0.0001 <0.0030

ML33-3B-A 1.15 <1.6 <0.035 <0.10 0.0194 <0.0015 0.046 <0.024 <0.0041 <0.0088 0.0078 <0.020 <0.0010 <0.0030

ML33-3B 44.8 2 37.3 11.8 8.84 1.18 0.039 <0.024 <0.0041 0.0118 <0.0023 <0.020 0.355 0.0145

ML33-3A 43.7 2.7 35.2 11.2 8.29 1.11 <0.027 <0.024 <0.0041 <0.0088 <0.0023 <0.020 0.333 0.0138

ML34-10B 14.2 <1.6 8.65 1.59 0.059 0.028 <0.027 <0.024 <0.0041 <0.0088 <0.0023 0.024 0.0435 <0.0030

ML34-10A 13.9 <1.6 8.55 1.6 0.0664 0.0301 0.034 <0.024 <0.0041 <0.0088 0.0141 0.023 0.0425 <0.0030

ML34-8B 17.8 <1.6 16 4.86 1.56 0.483 <0.027 <0.024 <0.0041 <0.0088 0.0055 <0.020 0.125 <0.0030

ML34-8A 17.3 <1.6 15.5 4.69 1.48 0.462 <0.027 <0.024 <0.0041 <0.0088 <0.0023 <0.020 0.12 <0.0030

ML34-7B 16.2 <1.6 17.2 6.59 3.32 0.673 <0.027 <0.024 <0.0041 <0.0088 <0.0023 <0.020 0.141 0.0035

ML34-7A 16.1 <1.6 17.2 6.62 3.27 0.673 0.043 0.043 <0.0041 0.0157 0.0054 <0.020 0.142 0.004

ML34-6B 24.2 <1.6 11.2 2.61 0.0367 0.0279 <0.027 <0.024 <0.0041 <0.0088 <0.0023 <0.020 0.0718 <0.0030

ML34-6A 24.6 <1.6 11.5 2.66 0.0293 0.0299 <0.027 <0.024 <0.0041 <0.0088 <0.0023 <0.020 0.0732 <0.0030

ML34-5B 32.7 <1.6 10.6 1.77 0.0369 0.0239 0.056 <0.024 <0.0041 <0.0088 <0.0023 <0.020 0.0673 0.0034

ML34-5A 31.9 <1.6 10.4 1.75 0.0314 0.0239 0.045 0.003 <0.0041 <0.0088 <0.0023 <0.020 0.0665 0.0004

ML34-4B 44.1 3.3 9.66 2.71 0.0587 0.0259 0.033 <0.024 <0.0041 <0.0088 <0.0023 <0.020 0.0671 <0.0030

ML34-4A 45.1 2.5 9.81 2.73 0.0587 0.0239 <0.027 <0.024 <0.0041 <0.0088 <0.0023 <0.020 0.0687 <0.0030

ML34-3B-B 1.1 <1.6 <0.035 <0.10 <0.0036 <0.0015 <0.027 <0.024 <0.0041 <0.0088 0.0032 <0.020 0.0011 <0.0030

ML34-3B-A 1.09 <1.6 <0.035 <0.10 0.012 <0.0015 <0.027 <0.024 <0.0041 <0.0088 0.0037 <0.020 <0.0010 <0.0030

ML34-3B 38.8 1.9 10.1 1.32 0.0408 0.0116 0.045 <0.024 <0.0041 <0.0088 <0.0023 <0.020 0.0779 0.0045

ML34-3A 38.5 <1.6 10.2 1.29 0.0371 0.0075 0.045 <0.024 <0.0041 <0.0088 <0.0023 <0.020 0.079 0.0047

ML34-2B 44.5 <1.6 9.09 4.42 0.0105 0.0116 0.067 <0.024 <0.0041 <0.0088 <0.0023 <0.020 0.0944 0.0037

ML34-2A 45 <1.6 9.21 4.49 0.0178 0.0116 0.033 <0.024 <0.0041 <0.0088 <0.0023 <0.020 0.0953 0.0035

ML34-1D-B 29.9 <1.6 11.3 9.61 0.0822 0.0645 0.055 <0.024 <0.0041 <0.0088 <0.0023 <0.020 0.15 0.012

ML34-1D-A 28.7 <1.6 11 9.35 0.0768 0.0605 <0.027 <0.024 <0.0041 0.0019 <0.0023 <0.020 0.145 0.0108

ML34-1B 29.9 <1.6 11.3 9.58 0.0896 0.0686 <0.027 0.029 <0.0041 <0.0088 <0.0023 <0.020 0.15 0.0111

ML34-1A 29.5 <1.6 11.1 9.48 0.0933 0.0604 <0.027 <0.024 <0.0041 <0.0088 <0.0023 <0.020 0.148 0.0109

ML34-0B 23.4 <1.6 3.42 <0.10 0.0156 <0.0015 0.035 <0.024 <0.0041 <0.0088 <0.0023 <0.020 0.0449 0.006

ML34-0A 23.9 <1.6 3.52 <0.10 0.0119 <0.0015 <0.027 <0.024 <0.0041 <0.0088 <0.0023 <0.020 0.047 0.0056

Table J1 Summary of Cation Results for Duplicates

Sample Session Na K Ca Mg Fe Mn Al As Cr Ni Zn Pb Sr Ba 

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)
148

ML35-10B 10.1 2.06 3.91 0.692 0.359 0.146 <0.036 <0.024 <0.0020 <0.010 0.0036 <0.018 0.0333 <0.0057

ML35-10A 9.88 2.2 3.86 0.699 0.348 0.146 <0.036 <0.024 <0.0020 <0.010 <0.0010 <0.018 0.0328 <0.0057

ML35-9B Mar-98 12.2 2.83 7.09 1.16 1.68 0.205 <0.036 0.025 0.0032 <0.010 0.0029 <0.018 0.0703 <0.0057

ML35-9A 12.1 2.44 7.1 1.11 1.67 0.207 <0.036 0.033 <0.0020 <0.010 0.0033 <0.018 0.071 <0.0057

ML35-8B 14.4 3.67 13.3 2.36 1.95 0.662 <0.036 <0.024 <0.0020 <0.010 <0.0010 <0.018 0.121 0.0093

ML35-8A 14.6 3.81 13.4 2.38 1.95 0.667 <0.036 <0.024 <0.0020 <0.010 0.0038 <0.018 0.122 0.0098

ML35-7B 15.9 2.77 15.2 3.34 0.414 0.955 <0.036 <0.024 <0.0020 <0.010 0.0034 <0.018 0.117 0.0096

ML35-7A 15.5 3.27 14.9 3.29 0.415 0.94 <0.036 <0.024 <0.0020 <0.010 0.003 <0.018 0.115 0.0102

ML35-6B 16.1 2.68 12.4 2.82 0.077 0.837 <0.036 <0.024 0.0036 <0.010 <0.0010 <0.018 0.0899 0.0091

ML35-6A 16.2 2.38 12.5 2.86 0.085 0.841 <0.036 <0.024 <0.0020 <0.010 0.003 <0.018 0.091 0.0096

ML35-5B 34.6 2.38 4.6 1.9 0.74 0.31 <0.036 <0.024 <0.0020 <0.010 0.0018 <0.018 0.0462 <0.0057

ML35-5A 34.5 2.33 4.6 1.89 0.758 0.31 <0.036 <0.024 <0.0020 <0.010 0.0041 <0.018 0.0462 <0.0057

ML35-4B 50.2 3.49 9.18 4.21 1.04 0.226 0.037 <0.024 0.0025 <0.010 <0.0010 <0.018 0.089 0.0059

ML35-4A 49.2 3.28 9.05 4.18 1.03 0.224 <0.036 <0.024 <0.0020 <0.010 <0.0010 <0.018 0.0878 <0.0057

ML35-3B 40.5 2.26 10.1 7.55 0.207 0.0325 0.047 <0.024 <0.0020 <0.010 <0.0010 <0.018 0.122 <0.0057

ML35-3A 41.7 1.56 10.6 7.88 0.208 0.0325 0.036 <0.024 <0.0020 <0.010 0.0034 <0.018 0.129 <0.0057

ML35-2D-B 24.1 0.91 6.47 3.51 0.696 0.0559 0.299 <0.024 <0.0020 <0.010 0.0015 <0.018 0.0623 <0.0057

ML35-2D-A 23.5 1.17 6.31 3.38 0.23 0.0475 <0.036 <0.024 0.0028 <0.010 0.0015 <0.018 0.0602 <0.0057

ML35-2B 23.8 1.19 6.3 3.36 0.256 0.0454 <0.036 <0.024 <0.0020 <0.010 <0.0010 <0.018 0.0597 <0.0057

ML35-2A 24.2 0.9 6.34 3.39 0.259 0.0454 <0.036 <0.024 0.0032 <0.010 <0.0010 <0.018 0.0605 <0.0057

ML35-1B-B 1.05 <0.78 <0.035 <0.074 <0.012 <0.0079 <0.036 <0.024 <0.0020 <0.010 0.0042 <0.018 0.0003 <0.0057

ML35-1B-A 1.07 <0.78 <0.035 <0.074 <0.012 <0.0079 <0.036 <0.024 <0.0020 <0.010 0.0026 <0.018 0.0003 <0.0057

ML35-1B 20.9 0.89 0.708 0.306 0.033 <0.0079 0.267 0.031 0.0046 <0.010 <0.0010 <0.018 0.0106 <0.0057

ML35-1A 20.4 0.93 0.748 0.306 0.055 <0.0079 0.256 <0.024 <0.0020 <0.010 <0.0010 <0.018 0.0104 <0.0057

ML35-0B 14.4 0.96 4.39 2.15 1.25 0.351 <0.036 <0.024 0.0022 <0.010 <0.0010 <0.018 0.0484 <0.0057

ML35-0A 14.6 <0.78 4.39 2.18 1.27 0.363 <0.036 <0.024 0.0024 <0.010 0.0006 <0.018 0.0498 <0.0057

ML24-6DUP 9.95 1.47 3.08 0.141 <0.57 0.0272 <0.10 <0.0095 <0.0037 <0.0094 <0.0022 <0.019 0.0369 <0.0033

ML21-6 53.1 6.15 31 15.9 <0.57 3.08 <0.10 <0.0097 0.716 <0.0094 0.0079 <0.019 0.508 0.0661

ML21-1DUP 20 1.49 12.1 6.89 <0.012 0.0957 <0.036 <0.024 <0.0020 <0.010 0.0043 <0.018 0.156 0.0146

ML21-1 20.6 1.02 12.4 7.03 <0.012 0.0957 <0.036 <0.024 <0.0020 <0.010 0.0051 <0.018 0.16 0.0153

ML23-2DUP 44.4 1.23 4.39 6.64 0.033 0.025 0.033 <0.019 <0.0034 <0.013 <0.0025 <0.020 0.0481 0.0081

ML23-2 46.2 <0.79 4.46 6.73 0.058 0.023 <0.033 <0.019 <0.0034 <0.013 <0.0025 <0.020 0.0497 0.0079

ML23.5-0DU 31 1.85 9.32 6.56 0.066 0.074 <0.033 <0.019 <0.0034 <0.013 0.0027 <0.020 0.0911 <0.0050

ML23.5-0 31.4 1.77 9.35 6.68 0.055 0.078 <0.033 <0.019 <0.0034 <0.013 <0.0025 <0.020 0.0917 <0.0050

ML25-2DUP 42.7 <0.79 2.89 1.41 3.65 0.171 0.066 <0.019 <0.0034 <0.013 0.0089 <0.020 0.039 <0.0050

ML25-2 42.6 0.08 2.92 1.44 3.69 0.17 0.044 0.005 <0.0034 <0.013 0.0042 <0.020 0.0395 <0.0050

ML11-5FDUP Jun-98 48.7 7.03 29.1 13.5 <0.0093 2.89 <0.034 <0.022 0.156 <0.011 <0.0007 <0.010 0.477 0.064

ML11-5 50.3 6.84 29.6 13.8 <0.0093 2.94 <0.034 <0.022 0.178 <0.011 <0.0007 <0.010 0.489 0.0662

ML12-5FDUP 56 5.8 28.8 6.51 17 1.02 <0.034 <0.022 <0.0023 <0.011 <0.0007 <0.010 0.289 0.0406

ML12-5 55.2 6.09 28.6 6.47 17 1.01 <0.034 <0.022 <0.0023 <0.011 <0.0007 <0.010 0.288 0.0402

ML13-9FDUP 5.3 2.92 18.4 1.83 0.342 0.0337 <0.023 <0.020 <0.0031 <0.0043 <0.0014 <0.011 0.143 0.0051

ML13-9 2.91 0.96 4.78 <0.034 <0.0026 <0.0040 <0.023 <0.020 <0.0031 <0.0043 <0.0014 <0.011 0.0364 0.0069

ML14-6FDUP 4.69 1.96 2.42 <0.034 0.008 <0.0040 <0.023 <0.020 <0.0031 <0.0043 <0.0014 <0.011 0.0103 <0.0013

ML14-6 5.2 2.06 2.77 <0.034 0.008 <0.0040 <0.023 <0.020 <0.0031 0.0094 <0.0014 <0.011 0.0118 <0.0013

ML15-5FDUP 6.64 1.03 1.04 0.636 0.985 0.118 1.43 <0.020 0.005 <0.0043 <0.0014 <0.011 0.012 0.0039

ML15-5 7.5 1.2 1.45 0.732 0.811 0.144 0.881 0.03 <0.0031 <0.0043 <0.0014 <0.011 0.0162 0.002

ML15-3 9.09 2.33 1.11 0.074 0.0119 <0.0040 0.238 <0.020 <0.0031 <0.0043 <0.0014 <0.011 0.0037 <0.0013

ML15-3 7.22 0.92 <0.026 <0.034 0.0196 0.0053 0.04 <0.020 <0.0031 <0.0043 <0.0014 <0.011 0.0009 <0.0013

Table J1 Summary of Cation Results for Duplicates

Sample Session Na K Ca Mg Fe Mn Al As Cr Ni Zn Pb Sr Ba 

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)
149

ML31-10 27.5 4.8 31.9 5.61 <0.010 0.386 <0.042 <0.0080 <0.0036 0.015 <0.0014 <0.011 0.393 0.0189

ML31-10FDU 27.5 4.5 32.1 5.6 <0.010 0.393 <0.042 <0.0080 <0.0036 <0.011 <0.0014 <0.011 0.397 0.0189

ML32-9FDUP 6.66 9.4 26 1.8 <0.010 <0.0025 <0.042 <0.0080 <0.0036 0.013 <0.0014 0.015 0.264 0.0036

ML32-9 6.78 9.4 26.3 1.79 <0.010 <0.0025 <0.042 <0.0080 <0.0036 <0.011 <0.0014 <0.011 0.265 0.0134

ML33-8FDUP 13.2 5.1 31.3 2.28 3.69 0.238 0.046 <0.0080 <0.0036 <0.011 <0.0014 <0.011 0.391 <0.0009

ML33-8 13.5 5.2 31.6 2.28 4.09 0.238 0.046 <0.0080 0.0043 <0.011 <0.0014 <0.011 0.394 0.0012

ML34-10 14.3 2 6.35 1.2 0.0218 0.0133 <0.034 0.024 <0.0023 <0.011 <0.0007 <0.010 0.0334 <0.0008

ML34-10 14.9 2.01 6.46 1.21 0.0256 0.018 <0.034 <0.022 <0.0023 <0.011 <0.0007 <0.010 0.034 0.0036

ML34-7FDUP 16.8 2.61 18.4 7.57 5.43 0.907 <0.034 <0.022 <0.0023 <0.011 <0.0007 <0.010 0.153 0.0024

ML34-7 16.6 2.8 18.2 7.52 5.28 0.888 <0.034 <0.022 <0.0023 <0.011 <0.0007 <0.010 0.151 0.0021

ML35-7 Jun-98 13.2 3.79 12 2.6 0.408 0.722 <0.034 <0.022 <0.0023 <0.011 <0.0007 <0.010 0.0893 0.0068

ML35-7 13.1 3.82 11.9 2.62 0.412 0.717 <0.034 0.028 <0.0023 <0.011 <0.0007 <0.010 0.0891 0.007

ML21-6DUP 52.5 6.31 29.4 14.2 0.0223 2.77 <0.031 <0.025 0.849 <0.010 <0.0012 <0.019 0.466 0.0187

ML21-6 52.5 6.64 29.1 14 0.0582 2.72 <0.031 <0.025 0.84 <0.010 <0.0012 <0.019 0.458 0.0179

ML22.5-5DU 22.8 4.43 30.3 4.38 15.5 0.676 <0.031 <0.024 <0.0016 <0.010 0 <0.019 0.335 0.0201

ML22.5-5 22.8 5 30.9 4.48 15.7 0.688 <0.031 <0.024 <0.0016 <0.010 0.0016 <0.019 0.335 0.0196

ML22.5-1DU 28.3 1.75 9.14 5.69 0.543 0.184 <0.031 <0.024 0.215 0.013 <0.0012 <0.019 0.13 0.0177

ML22.5-1 28.6 1.81 9.14 5.67 0.543 0.18 <0.031 <0.024 0.211 <0.010 0.0012 <0.019 0.13 0.0175

ML24-7DUP 7.41 2.01 1.89 0.108 <0.0028 0.005 0.049 0.029 0.002 <0.010 <0.0012 <0.019 0.0143 0.0129

ML24-7 7.43 2.1 1.91 0.095 0.0055 0.005 0.049 <0.024 <0.0016 <0.010 <0.0012 <0.019 0.0145 0.0039

ML11-10 Dec-98 11.9 6.16 28.2 12.7 4.38 0.742 <0.033 <0.021 <0.0023 <0.0088 <0.0012 <0.014 0.284 0.0197

ML11-10DUP 11.9 6.39 27.5 12.5 4.25 0.727 <0.033 <0.021 0.0037 <0.0088 <0.0012 <0.014 0.278 0.0217

ML11-0 38.1 1.04 18.2 11.9 <0.0049 0.166 <0.033 <0.021 0.168 0.0019 0.002 <0.014 0.25 0.0275

ML11-0DUP 37.6 1.3 18.1 11.8 <0.0049 0.161 <0.033 <0.021 0.17 <0.0088 0.002 <0.014 0.248 0.0269

ML12-9DUP 29.6 6.44 49.9 5.26 2.57 0.179 <0.033 <0.021 <0.0023 <0.0088 <0.0012 <0.014 0.407 0.0211

ML12-9 29.9 6.5 50.1 5.27 2.56 0.179 0.042 <0.021 <0.0023 <0.0088 <0.0012 <0.014 0.407 0.0211

ML13-7DUP 5.5 2.78 4.17 0.056 0.015 <0.0035 <0.033 <0.021 <0.0023 0.0099 <0.0012 <0.014 0.0412 0.0262

ML13-7 5.42 2.74 4.12 0.056 0.0116 <0.0035 <0.033 <0.021 <0.0023 0.0088 <0.0012 <0.014 0.041 0.0255

ML14-8DUP 5.03 2.39 4.03 <0.037 <0.0049 <0.0035 <0.033 <0.021 <0.0023 <0.0088 <0.0012 <0.014 0.0199 <0.0011

ML14-8 5.03 2.41 4.02 <0.037 <0.0049 <0.0035 <0.033 <0.021 <0.0023 <0.0088 <0.0012 <0.014 0.0198 <0.0011

ML15-10 39.6 4.77 32.1 1.89 <0.0034 0.0866 <0.030 <0.017 <0.0016 <0.0071 <0.0015 <0.014 0.291 0.0057

ML15-10 40 4.54 32.5 1.87 0.0087 0.0846 <0.030 <0.017 0.0026 <0.0071 <0.0015 <0.014 0.296 0.0066

ML15-6DUP 12.2 3.71 10.6 2.2 2.92 0.243 <0.030 0.037 <0.0016 <0.0071 <0.0015 <0.014 0.0862 0.0082

ML15-6 12 3.92 10.5 2.2 2.85 0.241 <0.030 <0.017 0.0016 <0.0071 <0.0015 <0.014 0.0847 0.0084

ML21-7DUP 21.7 5.42 26.6 9.14 6.34 3.46 <0.030 <0.017 <0.0016 0.0144 <0.0015 <0.014 0.303 0.0456

ML21-7 21.7 5.53 26.2 9 6.23 3.41 <0.030 <0.017 <0.0016 <0.0071 <0.0015 <0.014 0.299 0.0454

ML21-1DUP 22.2 0.76 12.7 7.52 <0.0034 0.095 <0.030 <0.017 0.0019 0.0129 <0.0015 <0.014 0.164 0.017

ML21-1 22.3 0.78 12.9 7.62 <0.0034 0.099 <0.030 <0.017 0 <0.0071 <0.0015 <0.014 0.166 0.0164

ML23.5-5DUP 21.2 1.37 6.69 2.67 0.483 0.243 <0.030 0.029 <0.0016 <0.0071 <0.0015 <0.014 0.0453 0.002

ML23.5-5 21.2 1.09 6.78 2.69 0.49 0.243 <0.030 <0.017 <0.0016 <0.0071 <0.0015 <0.014 0.0461 0.002

ML25-6DUP 12.4 1.73 2.46 1.12 0.48 0.325 <0.030 <0.017 <0.0016 <0.0071 <0.0015 <0.014 0.0268 0.0015

ML25-6 12.3 1.8 2.44 1.14 0.467 0.323 <0.030 <0.017 <0.0016 <0.0071 <0.0015 <0.014 0.0268 0.0017

ML31-9DUP 23.9 4.34 34.9 7.04 <0.0034 0.501 <0.030 <0.017 0.0019 <0.0071 <0.0015 <0.014 0.417 0.0286

ML31-9 23.9 4.46 34.2 6.99 <0.0034 0.501 <0.030 <0.017 <0.0016 <0.0071 0.0032 0.014 0.408 0.0286

ML32-10 19.7 7.77 40.4 2.93 0.0387 0.0225 <0.030 <0.017 0.0028 <0.0071 0.0017 <0.014 0.382 0.0108

ML32-10DUP 19.6 7.73 40.4 2.96 0.032 0.0224 <0.030 <0.017 <0.0016 <0.0071 <0.0015 <0.014 0.388 0.0099

ML32-5D 48.2 5.34 44.6 9.47 0.384 2.31 <0.030 <0.017 0.0024 <0.0071 <0.0015 <0.014 0.461 0.052

ML32-5 46.2 5.57 47.2 9.74 0.252 2.45 <0.030 <0.017 <0.0016 <0.0071 0.002 <0.014 0.47 0.0538

Table J1 Summary of Cation Results for Duplicates

Sample Session Na K Ca Mg Fe Mn Al As Cr Ni Zn Pb Sr Ba 

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)
150

ML33-7DUP 19.6 4.87 35.1 3.84 13.7 0.23 <0.022 <0.029 <0.0024 <0.0083 <0.019 <0.022 0.395 0.022

ML33-7D 19.5 4.78 35.6 3.89 13.3 0.248 <0.022 <0.029 <0.0024 0.0109 <0.019 <0.022 0.397 0.0238

ML33-7 20.1 4.69 35.6 3.9 13.5 0.238 <0.022 <0.029 <0.0024 <0.0083 <0.019 <0.022 0.403 0.0222

ML34-7DUP 17.5 2.31 22.6 8.22 3.89 0.748 <0.030 <0.020 <0.0019 <0.011 <0.0014 <0.014 0.194 0.0058

ML34-7 17.6 2.32 23 8.35 3.92 0.76 <0.030 <0.020 <0.0019 <0.011 <0.0014 <0.014 0.197 0.0057

ML34-6DUP 17.7 2.33 19.3 7.07 1.54 0.712 <0.022 <0.029 <0.0024 <0.0083 <0.019 <0.022 0.151 0.0035

ML34-6 19.4 2.2 19.3 7.15 1.27 0.684 <0.022 <0.029 <0.0024 <0.0083 <0.019 <0.022 0.15 0.0033

ML35-0 17.1 0.41 1.9 1.01 0.561 0.116 <0.030 <0.020 0.002 <0.011 <0.0014 <0.014 0.0219 0.0013

ML35-0DUP 17.3 0.39 1.92 1.04 0.561 0.122 <0.030 <0.020 <0.0019 <0.011 <0.0014 <0.014 0.0221 0.0013

T able J1 Sum m ary o f C atio n Resu lts for D up licates

Sam ple Sessio n Na K Ca M g F e M n Al As Cr Ni Z n Pb Sr Ba 

(m g /L ) (m g /L ) (m g /L ) (m g /L ) (m g /L ) (m g /L ) (m g /L ) (m g /L ) (m g /L ) (m g /L ) (m g /L ) (m g /L ) (m g /L ) (m g /L )
151

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152

Table J2 Statistical Results for Selected Cation Duplicates

Sample Session Na Ave % Diff Std Dev % StdDev K Ave % Diff Std Dev % StdDev

Na Na Na Na K K K K

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)

ML22-2.45 Nov-96 53 48.90 8.38 5.80 11.86 2.1 1.85 13.51 0.35 19.11

ML22-2A.45 44.8 1.6

ML31-7.45 31.1 31.55 -1.43 0.64 2.02 7.7 7.05 9.22 0.92 13.04

ML31-7.45 32 6.4

ML31-10.45 14.7 14.70 0.00 0.00 0.00 4.6 4.95 -7.07 0.49 10.00

ML31-10.45 14.7 5.3

no data Feb-97

ML11-9 DUP Jun-97 13.7 13.60 0.74 0.14 1.04 4.23 3.96 6.95 0.39 9.83

ML11-9 13.5 3.68

ML11-4 113 109.33 3.35 3.21 2.94 1.47 1.90 -22.77 0.38 19.83

ML11-4 DUP 108 -1.22 2.16 13.49

ML11-4 DUP 107 -2.13 2.08 9.28

ML11-2 DUP 81.1 81.45 -0.43 0.49 0.61 1.1 0.99 11.11 0.16 15.71

ML11-2 81.8 0.88

ML12-6 DUP 6.9 6.89 0.15 0.01 0.21 3.62 3.46 4.62 0.23 6.54

ML12-6 6.88 3.3

ML12-2 DUP+A16 60 60.30 -0.50 0.42 0.70 1.32 1.39 -4.69 0.09 6.64

ML12-2 DUP 60.6 1.45

ML13-8 DUP 3.49 3.47 0.72 0.04 1.02 2.16 2.17 -0.23 0.01 0.33

ML13-8 DUP 3.44 2.17

ML13-3 DUP 14.8 14.90 -0.67 0.14 0.95 1.12 1.19 -5.88 0.10 8.32

ML13-3 15 1.26

ML14-10 2.62 2.62 0.00 0.00 0.00 1.32 1.44 -8.01 0.16 11.33

ML14-10 DU 2.62 1.55

ML14-6 5.54 4.92 12.53 0.53 10.85 1.5 1.65 -9.27 0.15 9.08

ML14-6 DUP+A19 4.63 -5.96 1.66 0.40

ML14-6 DUP 4.6 -6.57 1.8 8.87

ML15-10 2.33 2.31 1.08 0.04 1.53 4.69 4.42 6.23 0.39 8.81

ML15-10 DUP+A19 2.28 4.14

ML15-1 DUP 58.6 58.30 0.51 0.42 0.73 0.58 0.58 0.00 0.00 0.00

ML15-1 58 0.58

ML15-0 31.6 31.65 -0.16 0.07 0.22 1.63 1.68 -2.98 0.07 4.21

ML15-0 DUP 31.7 1.73

ML31-2 26.7 26.87 -0.62 0.29 1.07 0.55 1.15 -52.17 0.52 45.39

ML31-2 DUP 26.7 -0.62 1.4 21.74

ML31-2 DUP 27.2 1.24 1.5 30.43

ML32-6 13.1 13.15 -0.38 0.07 0.54 4.6 4.45 3.37 0.21 4.77

ML32-6 DUP 13.2 4.3

ML32-2 DUP 26.1 26.40 -1.14 0.42 1.61 0.85 0.94 -9.57 0.13 13.54

ML32-2 26.7 1.03

ML33-10 DUP Jun-97 24.4 24.10 1.24 0.42 1.76 7.23 7.36 -1.77 0.18 2.50

ML33-10 23.8 7.49

ML33-4 21 24.57 -14.52 3.09 12.59 2.95 2.86 3.03 0.17 5.86

ML33-4 26.2 6.65 2.67 -6.75

ML33-4 DUP 26.5 7.87 2.97 3.73

ML33-3 DUP 37.7 37.95 -0.66 0.35 0.93 2.53 2.63 -3.62 0.13 5.12

ML33-3 38.2 2.72
153

Ca Ave % Diff Std Dev % StdDev Mg Ave % Diff Std Dev % StdDev Cr Ave % Diff Std Dev % StdDev

Ca Ca Ca Ca Mg Mg Mg Mg Cr Cr Cr Cr

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)

6.55 6.60 -0.76 0.07 1.07 0.65 2.30 -71.74 2.33 101.45 0.0031 0.78 -99.60 1.10 140.86

6.65 3.95 1.56

28.4 28.15 0.89 0.35 1.26 13.1 13.00 0.77 0.14 1.09 0.0025 0.00 0.00 0.00 0.00

27.9 12.9 0.0025

26.7 26.60 0.38 0.14 0.53 7.31 7.29 0.34 0.04 0.49 0.0025 0.00 0.00 0.00 0.00

26.5 7.26 0.0025

18 17.95 0.28 0.07 0.39 3.96 3.92 1.15 0.06 1.63 0.0044 0.00 0.00 0.00 0.00

17.9 3.87 0.0044

19.6 18.77 4.44 0.72 3.85 13.4 12.90 3.88 0.44 3.38 1.64 1.60 2.50 0.04 2.25

18.4 -1.95 12.7 -1.55 1.59 -0.62

18.3 -2.49 12.6 -2.33 1.57 -1.87

14.4 14.65 -1.71 0.35 2.41 9.64 9.73 -0.87 0.12 1.24 0.942 0.95 -0.53 0.01 0.75

14.9 9.81 0.952

7.15 7.01 2.07 0.21 2.93 2.85 2.64 7.95 0.30 11.25 0.0104 0.01 40.54 0.00 57.33

6.86 2.43 0.0044

9.92 9.91 0.10 0.01 0.14 7.33 7.36 -0.41 0.04 0.58 0.852 0.85 -0.29 0.00 0.41

9.9 7.39 0.857

6.63 6.63 0.00 0.00 0.00 0.071 0.08 -11.80 0.01 16.69 0.002 0.00 0.00 0.00 0.00

6.63 0.09 0.002

4.94 4.90 0.92 0.06 1.30 1.05 1.04 0.96 0.01 1.36 0.0044 0.00 0.00 0.00 0.00

4.85 1.03 0.0044

5.2 5.22 -0.29 0.02 0.41 0.187 0.19 -1.84 0.00 2.60 0.0044 0.00 0.00 0.00 0.00

5.23 0.194 0.0044

2.34 2.39 -2.09 0.04 1.82 0.073 0.07 0.92 0.00 1.60 0.0044 0.00 57.14 0.00 49.49

2.41 0.84 0.073 0.92 0.002 -28.57

2.42 1.26 0.071 -1.84 0.002 -28.57

11.9 11.75 1.28 0.21 1.81 1.08 1.06 2.37 0.04 3.35 0.0069 0.00 66.27 0.00 93.71

11.6 1.03 0.0014

1.29 1.26 2.38 0.04 3.37 0.694 0.71 -1.56 0.02 2.21 0.0044 0.00 0.00 0.00 0.00

1.23 0.716 0.0044

7.25 7.30 -0.68 0.07 0.97 4.48 4.48 0.00 0.00 0.00 0.002 0.00 0.00 0.00 0.00

7.35 4.48 0.002

9.45 9.45 0.00 0.01 0.11 5.72 5.69 0.53 0.03 0.46 0.0498 0.05 7.48 0.00 6.98

9.44 -0.11 5.67 -0.35 0.0434 -6.33

9.46 0.11 5.68 -0.18 0.0458 -1.15

27.3 27.55 -0.91 0.35 1.28 2.07 2.08 -0.48 0.01 0.68 0.002 0.00 0.00 0.00 0.00

27.8 2.09 0.002

9.26 9.28 -0.22 0.03 0.30 5.75 5.78 -0.52 0.04 0.73 0.12 0.12 -0.41 0.00 0.59

9.3 5.81 0.121

71.7 71.40 0.42 0.42 0.59 0.045 0.06 -19.64 0.02 27.78 0.0037 0.00 0.00 0.00 0.00

71.1 0.067 0.0037

26 22.23 16.94 3.26 14.67 5.4 4.99 8.29 0.36 7.18 0.0037 0.00 44.16 0.00 38.24

20.4 -8.25 4.79 -3.94 0.002 -22.08

20.3 -8.70 4.77 -4.34 0.002 -22.08

19.1 19.50 -2.05 0.57 2.90 5.9 6.05 -2.48 0.21 3.51 0.0037 0.00 0.00 0.00 0.00

19.9 6.2 0.0037
154

ML11-8DUP 11.8 12.10 -2.48 0.42 3.51 6.53 5.64 15.78 1.26 22.32

ML11-8 12.4 4.75

ML11-7DUP 12.9 13.20 -2.27 0.42 3.21 5.16 4.73 9.21 0.62 13.02

ML11-7 13.5 4.29

ML11-6DUP 15.5 15.65 -0.96 0.21 1.36 5.8 5.31 9.23 0.69 13.05

ML11-6 15.8 4.82

ML11-5DUP 33.5 34.25 -2.19 1.06 3.10 6.59 6.56 0.46 0.04 0.65

ML11-5 35 6.53

ML11-4DUP 86.8 86.45 0.40 0.49 0.57 2.24 2.01 11.72 0.33 16.58

ML11-4 86.1 1.77

ML11-3DUP 67.1 66.60 0.75 0.71 1.06 0.883 1.03 -14.27 0.21 20.18

ML11-3 66.1 1.177

ML11-2DUP 68.6 70.60 -2.83 2.77 3.92 1.143 1.43 -19.97 0.20 13.91

ML11-2DUP 68 -3.68 1.53 7.12

ML11-2DUP 73.8 4.53 1.59 11.33

ML11-2 72 1.98 1.45 1.52

ML11-1DUP 49.1 48.65 0.92 0.64 1.31 1.008 1.24 -18.97 0.33 26.83

ML11-1 48.2 1.48

ML11-0DUP 42.5 43.10 -1.39 0.85 1.97 2.31 2.17 6.45 0.20 9.12

ML11-0 43.7 2.03

ML12-10DUP 3.33 3.32 0.30 0.01 0.43 2.47 2.61 -5.18 0.19 7.33

ML12-10 3.31 2.74

ML12-9DUP Sep-97 4.11 4.11 0.00 0.00 0.00 3.18 3.08 3.25 0.14 4.59

ML12-9 4.11 2.98

ML12-8DUP 4.63 4.58 1.09 0.07 1.54 4.26 4.16 2.40 0.14 3.40

ML12-8 4.53 4.06

ML12-5DUP 22 22.15 -0.68 0.21 0.96 5.64 5.51 2.45 0.19 3.47

ML12-5 22.3 5.37

ML12-4DUP 77 76.80 0.26 0.28 0.37 5.34 5.42 -1.48 0.11 2.09

ML12-4 76.6 5.5

ML12-3DUP 98.7 99.85 -1.15 1.63 1.63 2.71 2.34 16.06 0.53 22.71

ML12-3 101 1.96

ML12-2DUP 87 88.30 -1.47 1.84 2.08 2.21 2.02 9.68 0.28 13.69

ML12-2 89.6 1.82

ML12-1DUP 68.7 69.20 -0.72 0.71 1.02 1.97 1.77 11.61 0.29 16.43

ML12-1 69.7 1.56

ML13-10DUP 5.35 5.41 -1.02 0.08 1.44 6.1 5.73 6.55 0.53 9.26

ML13-10 5.46 5.35

ML13-9DUP 4.43 4.43 0.00 0.00 0.00 5.36 5.10 5.10 0.37 7.21

ML13-9 4.43 4.84

ML13-8DUP 4.08 4.05 0.74 0.04 1.05 3.91 3.91 0.00 0.00 0.00

ML13-8 4.02 3.91

ML13-7DUP 3.89 3.89 0.00 0.00 0.00 4.55 3.93 15.92 0.88 22.52

ML13-7 3.89 3.3

ML13-6TRIP 3.99 4.02 -0.62 0.04 0.88 3.15 3.17 -0.63 0.03 0.89

ML13-6DUP 4.04 3.19

ML13-5DUP 3.66 3.68 -0.41 0.02 0.58 2.83 2.79 1.62 0.06 2.29

ML13-5 3.69 2.74

ML13-4DUP 4.28 4.29 -0.12 0.01 0.17 2.01 2.28 -11.65 0.37 16.47

ML13-4 4.29 2.54

Table J2 Statistical Results for Selected Cation Duplicates

Sample Session Na Ave % Diff Std Dev % StdDev K Ave % Diff Std Dev % StdDev

Na Na Na Na K K K K

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)
155

Ca Ave % Diff Std Dev % StdDev Mg Ave % Diff Std Dev % StdDev Cr Ave % Diff Std Dev % StdDev

Ca Ca Ca Ca Mg Mg Mg Mg Cr Cr Cr Cr

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)

16.5 16.60 -0.60 0.14 0.85 4.44 4.42 0.57 0.04 0.80 0.0044 0.00 0.00 0.00 0.00

16.7 4.39 0.0044

17.2 17.50 -1.71 0.42 2.42 5.29 5.36 -1.21 0.09 1.72 0.0044 0.00 0.00 0.00 0.00

17.8 5.42 0.0044

20.1 20.40 -1.47 0.42 2.08 7.27 7.36 -1.16 0.12 1.63 0.0044 0.00 0.00 0.00 0.00

20.7 7.44 0.0044

23.1 23.30 -0.86 0.28 1.21 10.8 11.00 -1.82 0.28 2.57 0.0832 0.08 -0.42 0.00 0.59

23.5 11.2 0.0839

14.3 14.10 1.42 0.28 2.01 9.85 9.72 1.34 0.18 1.89 1.6 1.58 1.27 0.03 1.79

13.9 9.59 1.56

4.92 4.92 0.00 0.00 0.00 3.91 3.94 -0.64 0.04 0.90 1.61 1.61 0.31 0.01 0.44

4.92 3.96 1.6

9.03 9.31 -3.03 0.28 2.97 6.15 6.32 -2.73 0.22 3.41 1.17 1.20 -2.50 0.04 2.97

9.14 -1.85 6.13 -3.04 1.17 -2.50

9.63 3.41 6.56 3.76 1.24 3.33

9.45 1.48 6.45 2.02 1.22 1.67

8.18 8.12 0.80 0.09 1.13 5.24 5.21 0.67 0.05 0.95 0.873 0.86 0.98 0.01 1.39

8.05 5.17 0.856

25.4 25.65 -0.97 0.35 1.38 15.3 15.45 -0.97 0.21 1.37 0.25 0.25 -0.79 0.00 1.12

25.9 15.6 0.254

12.3 12.20 0.82 0.14 1.16 0.745 0.74 0.61 0.01 0.86 0.0028 0.00 0.00 0.00 0.00

12.1 0.736 0.0028

13.4 13.45 -0.37 0.07 0.53 2.64 2.64 0.00 0.00 0.00 0.003 0.00 3.45 0.00 4.88

13.5 2.64 0.0028

9.75 9.68 0.78 0.11 1.10 3.51 3.47 1.15 0.06 1.63 0.0028 0.00 -18.84 0.00 26.64

9.6 3.43 0.0041

20.2 20.40 -0.98 0.28 1.39 3.84 3.84 0.13 0.01 0.18 0.0028 0.00 0.00 0.00 0.00

20.6 3.83 0.0028

20.1 20.25 -0.74 0.21 1.05 9.59 9.61 -0.21 0.03 0.29 0.331 0.32 4.09 0.02 5.78

20.4 9.63 0.305

14.2 14.40 -1.39 0.28 1.96 9.9 9.95 -0.50 0.07 0.71 1.52 1.54 -1.30 0.03 1.84

14.6 10 1.56

12.3 12.50 -1.60 0.28 2.26 9.19 9.32 -1.34 0.18 1.90 1.35 1.37 -1.10 0.02 1.55

12.7 9.44 1.38

14.6 14.75 -1.02 0.21 1.44 9.53 9.60 -0.73 0.10 1.03 0.845 0.85 -0.88 0.01 1.24

14.9 9.67 0.86

7.68 7.88 -2.54 0.28 3.59 0.279 0.25 13.41 0.05 18.97 0.0028 0.00 0.00 0.00 0.00

8.08 0.213 0.0028

6.91 6.95 -0.50 0.05 0.71 0.204 0.19 6.53 0.02 9.23 0.0028 0.00 0.00 0.00 0.00

6.98 0.179 0.0028

5.87 5.87 0.09 0.01 0.12 0.095 0.12 -18.10 0.03 25.60 0.0028 0.00 0.00 0.00 0.00

5.86 0.137 0.0028

4.54 4.56 -0.33 0.02 0.47 0.198 0.16 24.92 0.06 35.24 0.0028 0.00 0.00 0.00 0.00

4.57 0.119 0.0028

7.73 7.79 -0.77 0.08 1.09 0.137 0.15 -8.36 0.02 11.82 0.0028 0.00 0.00 0.00 0.00

7.85 0.162 0.0028

8.5 8.49 0.12 0.01 0.17 0.146 0.16 -7.89 0.02 11.15 0.0028 0.00 0.00 0.00 0.00

8.48 0.171 0.0028

5.99 5.99 0.00 0.00 0.00 0.095 0.12 -20.83 0.04 29.46 0.0028 0.00 0.00 0.00 0.00

5.99 0.145 0.0028
156

ML13-3DUP 9.31 9.17 1.53 0.20 2.16 1.79 2.19 -18.08 0.56 25.57

ML13-3 9.03 2.58

ML13-2DUP 25.1 24.60 2.03 0.71 2.87 2.48 2.86 -13.29 0.54 18.79

ML13-2 24.1 3.24

ML13-1DUP 61.3 63.35 -3.24 2.90 4.58 4 3.74 7.10 0.37 10.03

ML13-1 65.4 3.47

ML14-10 2.33 2.36 -1.06 0.04 1.50 1.63 1.35 21.19 0.40 29.97

ML14-10DUP 2.38 1.06

ML14-9DUP 2.57 2.61 -1.53 0.06 2.17 2.46 2.17 13.36 0.41 18.90

ML14-9 2.65 1.88

ML14-8DUP 6.16 6.13 0.57 0.05 0.81 1.91 1.93 -0.78 0.02 1.10

ML14-8 6.09 1.94

ML14-7DUP Sep-97 6.5 6.42 1.25 0.11 1.76 2.23 2.34 -4.50 0.15 6.36

ML14-7 6.34 2.44

ML14-6DUP 6.15 6.27 -1.84 0.16 2.60 2.69 2.41 11.85 0.40 16.76

ML14-6 6.38 2.12

ML14-5DUP 7.27 7.28 -0.07 0.01 0.10 2.25 2.15 4.65 0.14 6.58

ML14-5 7.28 2.05

ML14-4DUP 5.71 5.76 -0.87 0.07 1.23 2.56 2.49 3.02 0.11 4.27

ML14-4 5.81 2.41

ML14-3DUP 9.42 9.42 0.00 0.00 0.00 2.23 2.33 -4.29 0.14 6.07

ML14-3 9.42 2.43

ML14-2DUP 12.4 12.25 1.22 0.21 1.73 2.51 2.64 -4.92 0.18 6.96

ML14-2 12.1 2.77

ML14-1DUP 59.1 59.30 -0.34 0.28 0.48 2.18 2.32 -6.03 0.20 8.53

ML14-1 59.5 2.46

ML14-0DUP 47.8 47.10 1.49 0.99 2.10 1.8 1.96 -7.93 0.22 11.21

ML14-0 46.4 2.11

ML15-10 4.78 4.74 0.95 0.06 1.34 7.94 8.04 -1.24 0.14 1.76

ML15-10DUP 4.69 8.14

ML15-9DUP 5.58 5.58 0.00 0.00 0.00 6.9 7.16 -3.63 0.37 5.14

ML15-9 5.58 7.42

ML15-8DUP 8.69 8.78 -1.03 0.13 1.45 5.77 5.83 -0.94 0.08 1.34

ML15-8 8.87 5.88

ML15-7DUP 8.57 8.58 -0.12 0.01 0.16 5.39 5.54 -2.71 0.21 3.83

ML15-7 8.59 5.69

ML15-6DUP 11.5 11.50 0.00 0.00 0.00 4.06 3.96 2.53 0.14 3.57

ML15-6 11.5 3.86

ML15-5DUP 7.8 7.86 -0.70 0.08 0.99 1.81 2.00 -9.27 0.26 13.11

ML15-5 7.91 2.18

ML15-4DUP 7.58 7.67 -1.11 0.12 1.57 0.91 0.46 97.83 0.64 138.35

ML15-4 7.75 0.01

ML15-3DUP 7.42 7.42 0.00 0.00 0.00 3.19 3.11 2.74 0.12 3.87

ML15-3 7.42 3.02

ML15-2DUP 32.2 32.40 -0.62 0.28 0.87 2.5 2.45 2.04 0.07 2.89

ML15-2 32.6 2.4

ML15-1DUP 35.4 35.15 0.71 0.35 1.01 1.89 1.98 -4.55 0.13 6.43

ML15-1 34.9 2.07

Table J2 Statistical Results for Selected Cation Duplicates

Sample Session Na Ave % Diff Std Dev % StdDev K Ave % Diff Std Dev % StdDev

Na Na Na Na K K K K

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)
157

5.02 4.95 1.52 0.11 2.14 0.518 0.53 -1.61 0.01 2.28 0.0028 0.00 0.00 0.00 0.00

4.87 0.535 0.0028

2.9 3.29 -11.72 0.54 16.57 0.425 0.45 -4.71 0.03 6.66 0.0028 0.00 0.00 0.00 0.00

3.67 0.467 0.0028

1.29 1.59 -18.61 0.42 26.32 0.541 0.66 -18.15 0.17 25.67 0.0028 0.01 -45.10 0.00 63.78

1.88 0.781 0.0074

4.65 4.81 -3.23 0.22 4.56 0.27 0.25 8.65 0.03 12.24 0.0033 0.00 0.00 0.00 0.00

4.96 0.227 0.0033

5.26 5.44 -3.31 0.25 4.68 0.079 0.06 23.44 0.02 33.15 0.0033 0.00 0.00 0.00 0.00

5.62 0.049 0.0033

3.05 3.05 0.16 0.01 0.23 0.049 0.05 0.00 0.00 0.00 0.0033 0.00 -2.94 0.00 4.16

3.04 0.049 0.0035

3.22 3.17 1.58 0.07 2.23 0.049 0.05 0.00 0.00 0.00 0.0033 0.00 0.00 0.00 0.00

3.12 0.049 0.0033

2.77 2.83 -2.12 0.08 3.00 0.049 0.05 0.00 0.00 0.00 0.0033 0.00 0.00 0.00 0.00

2.89 0.049 0.0033

2.28 2.31 -1.30 0.04 1.84 0.086 0.07 27.41 0.03 38.76 0.0033 0.00 0.00 0.00 0.00

2.34 0.049 0.0033

3.19 3.19 0.00 0.00 0.00 0.049 0.06 -18.33 0.02 25.93 0.0051 0.00 21.43 0.00 30.30

3.19 0.071 0.0033

3.98 4.00 -0.38 0.02 0.53 0.049 0.05 0.00 0.00 0.00 0.0033 0.00 0.00 0.00 0.00

4.01 0.049 0.0033

4.09 4.06 0.74 0.04 1.04 0.188 0.17 8.99 0.02 12.71 0.0033 0.00 0.00 0.00 0.00

4.03 0.157 0.0033

2.58 2.57 0.58 0.02 0.83 0.21 0.21 0.00 0.00 0.00 0.0033 0.00 0.00 0.00 0.00

2.55 0.21 0.0033

3.18 3.18 0.00 0.00 0.00 0.11 0.12 -7.95 0.01 11.24 0.0033 0.00 0.00 0.00 0.00

3.18 0.129 0.0033

26.9 26.50 1.51 0.57 2.13 2.23 2.21 0.90 0.03 1.28 0.0033 0.00 0.00 0.00 0.00

26.1 2.19 0.0033

19.6 19.50 0.51 0.14 0.73 1.48 1.48 0.00 0.00 0.00 0.0033 0.00 0.00 0.00 0.00

19.4 1.48 0.0033

13.7 13.85 -1.08 0.21 1.53 1.74 1.77 -1.69 0.04 2.40 0.0033 0.00 0.00 0.00 0.00

14 1.8 0.0033

12.9 12.90 0.00 0.00 0.00 2.16 2.19 -1.14 0.04 1.62 0.0033 0.00 0.00 0.00 0.00

12.9 2.21 0.0033

8.09 8.10 -0.12 0.01 0.17 1.89 1.90 -0.26 0.01 0.37 0.0033 0.00 0.00 0.00 0.00

8.11 1.9 0.0033

1.62 1.68 -3.28 0.08 4.64 0.877 0.95 -7.54 0.10 10.66 0.0042 0.00 12.00 0.00 16.97

1.73 1.02 0.0033

0.076 0.08 -3.80 0.00 5.37 0.145 0.16 -10.77 0.02 15.23 0.0033 0.00 -7.04 0.00 9.96

0.082 0.18 0.0038

0.33 0.32 1.85 0.01 2.62 0.316 0.29 10.88 0.04 15.38 0.0048 0.00 18.52 0.00 26.19

0.318 0.254 0.0033

2.23 2.24 -0.45 0.01 0.63 1.61 1.59 1.26 0.03 1.78 0.0033 0.00 0.00 0.00 0.00

2.25 1.57 0.0033

5.93 5.88 0.85 0.07 1.20 3.58 3.55 0.85 0.04 1.20 0.0033 0.00 0.00 0.00 0.00

5.83 3.52 0.0033

Ca Ave % Diff Std Dev % StdDev Mg Ave % Diff Std Dev % StdDev Cr Ave % Diff Std Dev % StdDev

Ca Ca Ca Ca Mg Mg Mg Mg Cr Cr Cr Cr

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)
158

ML15-0DUP 35.9 36.35 -1.24 0.64 1.75 2.11 1.96 7.65 0.21 10.82

ML15-0 36.8 1.81

ML31-10 20.1 20.00 0.50 0.14 0.71 5.28 5.28 0.09 0.01 0.13

ML31-10DUP 19.9 5.27

ML31-9DUP Sep-97 26 25.85 0.58 0.21 0.82 5.59 5.65 -1.06 0.08 1.50

ML31-9 25.7 5.71

ML31-8DUP 15.3 15.25 0.33 0.07 0.46 6 5.69 5.54 0.45 7.84

ML31-8 15.2 5.37

ML31-7DUP 25.2 25.25 -0.20 0.07 0.28 7.37 7.45 -1.07 0.11 1.52

ML31-7 25.3 7.53

ML31-5BDUP 84.1 83.35 0.90 1.06 1.27 3.81 3.94 -3.30 0.18 4.67

ML31-5B 82.6 4.07

ML31-5DUP 85.1 84.75 0.41 0.49 0.58 3.87 3.98 -2.64 0.15 3.74

ML31-5 84.4 4.08

ML31-4DUP 90.7 91.25 -0.60 0.78 0.85 2.84 2.81 1.07 0.04 1.51

ML31-4 91.8 2.78

ML31-3DUP 46.7 46.55 0.32 0.21 0.46 1.91 2.05 -6.83 0.20 9.66

ML31-3 46.4 2.19

ML31-2DUP 27.6 27.55 0.18 0.07 0.26 1.52 1.64 -7.03 0.16 9.95

ML31-2 27.5 1.75

ML31-1DUP 27.1 27.10 0.00 0.00 0.00 1.57 1.46 7.53 0.16 10.66

ML31-1 27.1 1.35

ML31-0DUP 21.8 21.65 0.69 0.21 0.98 1.29 1.41 -8.51 0.17 12.04

ML31-0 21.5 1.53

ML32-9DUP 8.86 8.87 -0.06 0.01 0.08 15.4 15.30 0.65 0.14 0.92

ML32-9 8.87 15.2

ML32-8DUP 13.1 13.10 0.00 0.00 0.00 5.4 5.05 6.93 0.49 9.80

ML32-8 13.1 4.7

ML32-7DUP 12.8 12.80 0.00 0.00 0.00 5.19 5.07 2.47 0.18 3.49

ML32-7 12.8 4.94

ML32-6DUP 11.5 11.55 -0.43 0.07 0.61 4.75 4.65 2.15 0.14 3.04

ML32-6 11.6 4.55

ML32-5DUP 31.8 31.65 0.47 0.21 0.67 5.18 5.25 -1.33 0.10 1.89

ML32-5 31.5 5.32

ML32-4DUP 45.7 45.40 0.66 0.42 0.93 4.89 4.79 2.19 0.15 3.10

ML32-4 45.1 4.68

ML32-3DUP 39.8 40.15 -0.87 0.49 1.23 1.47 1.45 1.38 0.03 1.95

ML32-3 40.5 1.43

ML32-2DUP 27.2 26.95 0.93 0.35 1.31 0.9 0.90 0.00 0.00 0.00

ML32-2 26.7 0.9

ML32-1DUP 26.5 26.40 0.38 0.14 0.54 1.1 1.40 -21.15 0.42 29.91

ML32-1 26.3 1.69

ML32-0DUP 17.8 17.70 0.56 0.14 0.80 0.68 0.76 -10.53 0.11 14.89

ML32-0 17.6 0.84

ML33-10 Sep-97 24.7 24.20 2.07 0.71 2.92 12.8 12.90 -0.78 0.14 1.10

ML33-10DUP 23.7 13

ML33-9DUP 15.9 15.60 1.92 0.42 2.72 3.4 3.64 -6.59 0.34 9.32

ML33-9 15.3 3.88

Table J2 Statistical Results for Selected Cation Duplicates

Sample Session Na Ave % Diff Std Dev % StdDev K Ave % Diff Std Dev % StdDev

Na Na Na Na K K K K

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)
159

5.22 5.33 -2.06 0.16 2.92 3.12 3.19 -2.04 0.09 2.89 0.0033 0.00 0.00 0.00 0.00

5.44 3.25 0.0033

35.2 35.05 0.43 0.21 0.61 7.09 7.12 -0.42 0.04 0.60 0.0033 0.00 0.00 0.00 0.00

34.9 7.15 0.0033

48.3 48.05 0.52 0.35 0.74 5.17 5.17 0.10 0.01 0.14 0.0033 0.00 0.00 0.00 0.00

47.8 5.16 0.0033

21.6 21.50 0.47 0.14 0.66 9.05 9.00 0.61 0.08 0.86 0.0033 0.00 0.00 0.00 0.00

21.4 8.94 0.0033

28.8 29.05 -0.86 0.35 1.22 10.8 10.85 -0.46 0.07 0.65 0.0033 0.00 0.00 0.00 0.00

29.3 10.9 0.0033

26.8 26.60 0.75 0.28 1.06 16.5 16.30 1.23 0.28 1.74 0.0642 0.06 2.72 0.00 3.85

26.4 16.1 0.0608

27.2 27.15 0.18 0.07 0.26 16.6 16.60 0.00 0.00 0.00 0.0621 0.06 0.49 0.00 0.69

27.1 16.6 0.0615

27 27.20 -0.74 0.28 1.04 18.2 18.35 -0.82 0.21 1.16 0.0793 0.08 0.57 0.00 0.81

27.4 18.5 0.0784

16.4 16.35 0.31 0.07 0.43 10 9.97 0.30 0.04 0.43 0.0452 0.04 5.12 0.00 7.24

16.3 9.94 0.0408

10.2 10.10 0.99 0.14 1.40 6.07 6.03 0.66 0.06 0.94 0.0472 0.05 0.53 0.00 0.75

10 5.99 0.0467

9.82 9.90 -0.76 0.11 1.07 5.82 5.86 -0.60 0.05 0.85 0.0451 0.04 5.13 0.00 7.25

9.97 5.89 0.0407

10.2 10.15 0.49 0.07 0.70 6.15 6.13 0.41 0.04 0.58 0.0033 0.00 0.00 0.00 0.00

10.1 6.1 0.0033

21.6 21.55 0.23 0.07 0.33 1.77 1.77 0.28 0.01 0.40 0.0042 0.00 0.00 0.00 0.00

21.5 1.76 0.0042

34.6 34.85 -0.72 0.35 1.01 2.47 2.46 0.61 0.02 0.86 0.0042 0.00 0.00 0.00 0.00

35.1 2.44 0.0042

28.8 28.95 -0.52 0.21 0.73 2.03 2.03 0.00 0.00 0.00 0.0042 0.00 0.00 0.00 0.00

29.1 2.03 0.0042

26 26.15 -0.57 0.21 0.81 1.67 1.67 0.00 0.00 0.00 0.0042 0.00 0.00 0.00 0.00

26.3 1.67 0.0042

27.6 27.40 0.73 0.28 1.03 5.69 5.69 0.09 0.01 0.12 0.0042 0.00 0.00 0.00 0.00

27.2 5.68 0.0042

23.2 22.80 1.75 0.57 2.48 9.12 8.94 2.01 0.25 2.85 0.0569 0.06 1.34 0.00 1.89

22.4 8.76 0.0554

9.19 9.25 -0.59 0.08 0.84 6.48 6.54 -0.92 0.08 1.30 0.109 0.11 0.00 0.00 0.00

9.3 6.6 0.109

9.25 9.16 1.04 0.13 1.47 5.66 5.61 0.98 0.08 1.39 0.102 0.10 0.99 0.00 1.40

9.06 5.55 0.1

9.59 9.54 0.58 0.08 0.82 5.5 5.48 0.36 0.03 0.52 0.0385 0.04 -2.16 0.00 3.05

9.48 5.46 0.0402

8.46 8.45 0.18 0.02 0.25 5.18 5.19 -0.10 0.01 0.14 0.0042 0.00 0.00 0.00 0.00

8.43 5.19 0.0042

103 100.80 2.18 3.11 3.09 0.014 0.04 -67.44 0.04 95.38 0.0042 0.00 0.00 0.00 0.00

98.6 0.072 0.0042

14.3 14.10 1.42 0.28 2.01 1.31 1.30 0.77 0.01 1.09 0.0042 0.00 0.00 0.00 0.00

13.9 1.29 0.0042

Ca Ave % Diff Std Dev % StdDev Mg Ave % Diff Std Dev % StdDev Cr Ave % Diff Std Dev % StdDev

Ca Ca Ca Ca Mg Mg Mg Mg Cr Cr Cr Cr

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)
160

ML33-8DUP 10.9 10.90 0.00 0.00 0.00 5.34 5.41 -1.29 0.10 1.83

ML33-8 10.9 5.48

ML33-7DUP 12.8 12.85 -0.39 0.07 0.55 6.57 6.52 0.77 0.07 1.08

ML33-7 12.9 6.47

ML33-6DUP 13.4 13.45 -0.37 0.07 0.53 4.78 4.82 -0.73 0.05 1.03

ML33-6 13.5 4.85

ML33-5DUP 17.3 17.45 -0.86 0.21 1.22 4.28 4.15 3.13 0.18 4.43

ML33-5 17.6 4.02

ML33-4DUP 16.7 16.55 0.91 0.21 1.28 3.6 3.67 -1.77 0.09 2.51

ML33-4 16.4 3.73

ML33-3DUP 30.4 30.50 -0.33 0.14 0.46 2.48 2.31 7.36 0.24 10.41

ML33-3 30.6 2.14

ML33-2ADUP 33.9 34.25 -1.02 0.49 1.45 1.93 1.99 -2.77 0.08 3.92

ML33-2A 34.6 2.04

ML33-2DUP 33.8 33.90 -0.29 0.14 0.42 2.26 2.38 -5.04 0.17 7.13

ML33-2 34 2.5

ML33-1DUP 29.2 28.90 1.04 0.42 1.47 1.72 1.98 -12.91 0.36 18.26

ML33-1 28.6 2.23

ML33-0DUP 18.2 18.10 0.55 0.14 0.78 1.67 1.87 -10.46 0.28 14.79

ML33-0 18 2.06

ML34-6DUP 14.2 14.20 0.00 0.00 0.00 1.71 1.57 8.92 0.20 12.61

ML34-6 14.2 1.43

ML34-5DUP 19 18.90 0.53 0.14 0.75 1.46 1.47 -0.68 0.01 0.96

ML34-5 18.8 1.48

ML34-4DDUP 22.7 22.70 0.00 0.00 0.00 2.09 2.09 0.00 0.00 0.00

ML34-4D 22.7 2.09

ML34-4DUP 24.1 24.55 -1.83 0.64 2.59 1.98 2.03 -2.22 0.06 3.14

ML34-4 25 2.07

ML34-3DUP 28.6 28.80 -0.69 0.28 0.98 3.35 3.50 -4.29 0.21 6.06

ML34-3 29 3.65

ML34-2DUP 31.7 31.60 0.32 0.14 0.45 2.67 2.62 1.91 0.07 2.70

ML34-2 31.5 2.57

ML34-1DUP 26.2 26.15 0.19 0.07 0.27 2.54 2.62 -3.05 0.11 4.32

ML34-1 26.1 2.7

ML34-0DUP 22.3 22.05 1.13 0.35 1.60 2.28 2.49 -8.25 0.29 11.67

ML34-0 21.8 2.69

ML35-10 Sep-97 32.8 32.80 0.00 0.00 0.00 6.24 6.15 1.46 0.13 2.07

ML35-10DUP 32.8 6.06

ML35-9DUP 22.7 22.75 -0.22 0.07 0.31 5.2 5.30 -1.79 0.13 2.54

ML35-9 22.8 5.39

ML35-8DUP 17.4 17.35 0.29 0.07 0.41 4.94 4.94 0.00 0.00 0.00

ML35-8 17.3 4.94

ML35-7DUP 14.4 14.50 -0.69 0.14 0.98 4.88 4.95 -1.31 0.09 1.86

ML35-7 14.6 5.01

ML35-6DUP 14.5 14.35 1.05 0.21 1.48 4.11 4.31 -4.64 0.28 6.56

ML35-6 14.2 4.51

ML35-5DUP 30.2 30.10 0.33 0.14 0.47 2.93 3.10 -5.33 0.23 7.54

ML35-5 30 3.26

Table J2 Statistical Results for Selected Cation Duplicates

Sample Session Na Ave % Diff Std Dev % StdDev K Ave % Diff Std Dev % StdDev

Na Na Na Na K K K K

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)
161

32.4 32.25 0.47 0.21 0.66 0.235 0.27 -14.08 0.05 19.91 0.0042 0.00 0.00 0.00 0.00

32.1 0.312 0.0042

27.7 27.95 -0.89 0.35 1.26 2.52 2.53 -0.20 0.01 0.28 0.0042 0.00 0.00 0.00 0.00

28.2 2.53 0.0042

25.3 25.20 0.40 0.14 0.56 2.95 2.94 0.34 0.01 0.48 0.0042 0.00 0.00 0.00 0.00

25.1 2.93 0.0042

17.8 18.00 -1.11 0.28 1.57 2.71 2.74 -0.91 0.04 1.29 0.0042 0.00 0.00 0.00 0.00

18.2 2.76 0.0042

21.8 21.50 1.40 0.42 1.97 4.19 4.12 1.70 0.10 2.40 0.0042 0.00 0.00 0.00 0.00

21.2 4.05 0.0042

8.44 8.54 -1.11 0.13 1.57 2.88 2.90 -0.52 0.02 0.73 0.0042 0.00 0.00 0.00 0.00

8.63 2.91 0.0042

6.93 7.01 -1.07 0.11 1.51 2.41 2.44 -1.03 0.04 1.45 0.0042 0.00 0.00 0.00 0.00

7.08 2.46 0.0042

12.8 12.95 -1.16 0.21 1.64 4.6 4.68 -1.71 0.11 2.42 0.0042 0.00 0.00 0.00 0.00

13.1 4.76 0.0042

2.22 2.24 -0.67 0.02 0.95 0.342 0.35 -1.01 0.00 1.43 0.0042 0.00 0.00 0.00 0.00

2.25 0.349 0.0042

4.1 4.07 0.74 0.04 1.04 0.158 0.17 -4.82 0.01 6.82 0.0042 0.00 0.00 0.00 0.00

4.04 0.174 0.0042

3.02 2.99 1.00 0.04 1.42 0.578 0.53 8.65 0.07 12.23 0.0042 0.00 0.00 0.00 0.00

2.96 0.486 0.0042

3.22 3.20 0.63 0.03 0.88 0.288 0.29 0.00 0.00 0.00 0.0042 0.00 0.00 0.00 0.00

3.18 0.288 0.0042

1.99 1.99 0.25 0.01 0.36 0.748 0.75 0.00 0.00 0.00 0.0042 0.00 0.00 0.00 0.00

1.98 0.748 0.0042

1.63 1.64 -0.31 0.01 0.43 0.602 0.63 -4.52 0.04 6.39 0.0042 0.00 0.00 0.00 0.00

1.64 0.659 0.0042

8.24 8.29 -0.54 0.06 0.77 1.17 1.19 -1.68 0.03 2.38 0.0042 0.00 0.00 0.00 0.00

8.33 1.21 0.0042

3.9 3.83 1.83 0.10 2.58 0.642 0.60 7.00 0.06 9.90 0.0042 0.00 0.00 0.00 0.00

3.76 0.558 0.0042

1.25 1.24 0.81 0.01 1.14 0.187 0.20 -5.79 0.02 8.19 0.0042 0.00 0.00 0.00 0.00

1.23 0.21 0.0042

2.8 2.79 0.54 0.02 0.76 0.111 0.10 7.25 0.01 10.25 0.0042 0.00 0.00 0.00 0.00

2.77 0.096 0.0042

18.8 18.75 0.27 0.07 0.38 3.27 3.28 -0.15 0.01 0.22 0.0042 0.00 0.00 0.00 0.00

18.7 3.28 0.0042

14.4 13.85 3.97 0.78 5.62 2.28 2.26 1.11 0.04 1.57 0.0042 0.00 0.00 0.00 0.00

13.3 2.23 0.0042

11.4 11.40 0.00 0.00 0.00 2.56 2.55 0.39 0.01 0.55 0.0042 0.00 0.00 0.00 0.00

11.4 2.54 0.0042

12.9 12.95 -0.39 0.07 0.55 3.47 3.49 -0.57 0.03 0.81 0.0042 0.00 0.00 0.00 0.00

13 3.51 0.0042

14.4 14.25 1.05 0.21 1.49 3.62 3.61 0.42 0.02 0.59 0.0042 0.00 0.00 0.00 0.00

14.1 3.59 0.0042

4.81 4.79 0.42 0.03 0.59 1.94 1.95 -0.51 0.01 0.73 0.0042 0.00 0.00 0.00 0.00

4.77 1.96 0.0042

Ca Ave % Diff Std Dev % StdDev Mg Ave % Diff Std Dev % StdDev Cr Ave % Diff Std Dev % StdDev

Ca Ca Ca Ca Mg Mg Mg Mg Cr Cr Cr Cr

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)
162

ML35-4DUP 25.8 25.55 0.98 0.35 1.38 1.95 1.94 0.78 0.02 1.10

ML35-4 25.3 1.92

ML35-3DUP 42.4 42.20 0.47 0.28 0.67 2.28 2.28 0.22 0.01 0.31

ML35-3 42 2.27

ML35-2DUP 39.4 39.10 0.77 0.42 1.09 1.13 1.21 -6.22 0.11 8.80

ML35-2 38.8 1.28

ML35-1DUP 26.6 26.55 0.19 0.07 0.27 1.23 1.26 -1.99 0.04 2.82

ML35-1 26.5 1.28

ML35-0DUP 19 18.70 1.60 0.42 2.27 0.81 1.19 -31.65 0.53 44.75

ML35-0 18.4 1.56

ML11-10B Mar-98 14.1 13.75 2.55 0.49 3.60 7.37 7.10 3.88 0.39 5.48

ML11-10A 13.4 6.82

ML11-9B 12.1 12.05 0.41 0.07 0.59 4.72 4.90 -3.67 0.25 5.20

ML11-9A 12 5.08

ML11-8B 11.4 11.50 -0.87 0.14 1.23 4.2 4.04 4.09 0.23 5.78

ML11-8A 11.6 3.87

ML11-7B 12.6 12.60 0.00 0.00 0.00 3.9 4.00 -2.50 0.14 3.54

ML11-7A 12.6 4.1

ML11-6B 49.5 49.60 -0.20 0.14 0.29 6.07 6.22 -2.33 0.21 3.30

ML11-6A 49.7 6.36

ML11-5B 52.3 52.25 0.10 0.07 0.14 5.77 6.04 -4.39 0.37 6.21

ML11-5A 52.2 6.3

ML11-4C 72 72.83 -1.14 0.76 1.05 1.22 1.08 12.62 0.20 18.00

ML11-4B 73 0.23 1.17 8.00

ML11-4A 73.5 0.92 0.86 -20.62

ML12-4B 69 68.60 0.58 0.57 0.82 2.67 2.52 6.16 0.22 8.72

ML12-4A 68.2 2.36

ML13-4B 4.74 4.69 1.07 0.07 1.51 1.54 1.49 3.70 0.08 5.24

ML13-4A 4.64 1.43

ML14-4B Mar-98 3.86 3.84 0.65 0.04 0.92 1.9 1.70 11.76 0.28 16.64

ML14-4A 3.81 1.5

ML15-4B 10.2 10.05 1.49 0.21 2.11 1.17 1.26 -7.14 0.13 10.10

ML15-4A 9.9 1.35

ML15-3B 12.7 12.65 0.40 0.07 0.56 1.3 1.42 -8.13 0.16 11.49

ML15-3A 12.6 1.53

ML15-2DUP 44.3 43.57 1.68 0.64 1.48 3.38 3.29 2.63 0.30 9.10

ML15-2B 43.1 -1.07 2.96 -10.12

ML15-2A 43.3 -0.61 3.54 7.49

ML15-1B 56.7 55.95 1.34 1.06 1.90 0.88 0.69 27.54 0.27 38.94

ML15-1A 55.2 0.5

ML15-0B 33.5 33.65 -0.45 0.21 0.63 0.88 0.88 0.00 0.00 0.00

ML15-0A 33.8 0.88

ML31-10B 22.1 21.80 1.38 0.42 1.95 2.9 3.10 -6.45 0.28 9.12

ML31-10A 21.5 3.3

ML31-9B 22.8 22.80 0.00 0.00 0.00 4.3 4.20 2.38 0.14 3.37

ML31-9A 22.8 4.1

ML31-8B 31.8 32.35 -1.70 0.78 2.40 5.8 5.65 2.65 0.21 3.75

ML31-8A 32.9 5.5

Table J2 Statistical Results for Selected Cation Duplicates

Sample Session Na Ave % Diff Std Dev % StdDev K Ave % Diff Std Dev % StdDev

Na Na Na Na K K K K

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)
163

2.9 2.86 1.40 0.06 1.98 1.32 1.31 1.15 0.02 1.63 0.0042 0.00 0.00 0.00 0.00

2.82 1.29 0.0042

5 5.03 -0.50 0.04 0.70 3.26 3.25 0.31 0.01 0.44 0.0042 0.00 0.00 0.00 0.00

5.05 3.24 0.0042

6.09 6.06 0.58 0.05 0.82 2.75 2.73 0.92 0.04 1.30 0.0042 0.00 0.00 0.00 0.00

6.02 2.7 0.0042

2.41 2.41 0.00 0.00 0.00 0.94 0.93 0.80 0.01 1.14 0.0042 0.00 0.00 0.00 0.00

2.41 0.925 0.0042

2.52 2.51 0.40 0.01 0.56 1.23 1.23 0.41 0.01 0.58 0.0042 0.00 0.00 0.00 0.00

2.5 1.22 0.0042

22.1 21.70 1.84 0.57 2.61 10.7 10.50 1.90 0.28 2.69 0.0025 0.00 0.00 0.00 0.00

21.3 10.3 0.0025

25.5 25.35 0.59 0.21 0.84 6.92 6.89 0.44 0.04 0.62 0.0025 0.00 0.00 0.00 0.00

25.2 6.86 0.0025

24.6 24.65 -0.20 0.07 0.29 7.07 7.10 -0.35 0.04 0.50 0.0025 0.00 0.00 0.00 0.00

24.7 7.12 0.0025

25.9 25.80 0.39 0.14 0.55 7.47 7.46 0.13 0.01 0.19 0.0025 0.00 0.00 0.00 0.00

25.7 7.45 0.0025

34 34.15 -0.44 0.21 0.62 13.2 13.25 -0.38 0.07 0.53 0.149 0.15 1.02 0.00 1.44

34.3 13.3 0.146

34.1 33.80 0.89 0.42 1.26 15.2 15.10 0.66 0.14 0.94 0.121 0.12 -0.41 0.00 0.58

33.5 15 0.122

8.17 8.22 -0.57 0.06 0.78 5.76 5.80 -0.69 0.03 0.60 1.2 1.21 -0.55 0.01 0.48

8.19 -0.32 5.82 0.34 1.21 0.28

8.29 0.89 5.82 0.34 1.21 0.28

15.4 15.45 -0.32 0.07 0.46 9.15 9.20 -0.49 0.06 0.69 0.7 0.70 0.65 0.01 0.92

15.5 9.24 0.691

4.92 4.91 0.31 0.02 0.43 0.16 0.16 2.56 0.01 3.63 0.0026 0.00 1.96 0.00 2.77

4.89 0.152 0.0025

3.06 3.04 0.66 0.03 0.93 0.05 0.05 0.00 0.00 0.00 0.0024 0.00 0.00 0.00 0.00

3.02 0.05 0.0024

0.3 0.30 0.00 0.00 0.00 0.117 0.14 -14.60 0.03 20.65 0.0024 0.00 0.00 0.00 0.00

0.3 0.157 0.0024

0.93 0.93 0.38 0.00 0.53 0.05 0.05 0.00 0.00 0.00 0.0024 0.00 0.00 0.00 0.00

0.923 0.05 0.0024

4.74 4.74 0.07 0.08 1.58 3.36 3.37 -0.30 0.05 1.36 0.0024 0.00 -4.00 0.00 6.93

4.81 1.55 3.42 1.48 0.0027 8.00

4.66 -1.62 3.33 -1.19 0.0024 -4.00

1.46 1.43 2.46 0.05 3.47 0.818 0.80 1.68 0.02 2.37 0.0024 0.00 -37.66 0.00 53.26

1.39 0.791 0.0053

6.68 6.68 0.07 0.01 0.11 4.03 4.05 -0.37 0.02 0.52 0.0024 0.00 0.00 0.00 0.00

6.67 4.06 0.0024

39 38.70 0.78 0.42 1.10 7.11 7.11 0.07 0.01 0.10 0.0041 0.00 0.00 0.00 0.00

38.4 7.1 0.0041

30.4 30.20 0.66 0.28 0.94 10.01 9.99 0.25 0.04 0.35 0.0041 0.00 0.00 0.00 0.00

30 9.96 0.0041

32.6 33.05 -1.36 0.64 1.93 11.8 11.95 -1.26 0.21 1.78 0.0041 0.00 0.00 0.00 0.00

33.5 12.1 0.0041

Ca Ave % Diff Std Dev % StdDev Mg Ave % Diff Std Dev % StdDev Cr Ave % Diff Std Dev % StdDev

Ca Ca Ca Ca Mg Mg Mg Mg Cr Cr Cr Cr

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)
164

ML31-7B 47.8 46.90 1.92 1.27 2.71 6.3 6.60 -4.55 0.42 6.43

ML31-7A 46 6.9

ML31-6D-A 55.4 55.05 0.64 1.01 1.84 7.14 7.15 -0.10 0.27 3.74

ML31-6C 54 -1.91 7.52 5.21

ML31-6B 56.3 2.27 6.9 -3.46

ML31-6A 54.5 -1.00 7.03 -1.64

ML31-5B 66.7 67.70 -1.48 1.41 2.09 1.92 1.74 10.34 0.25 14.63

ML31-5A 68.7 1.56

ML31-4B-B 0.24 0.27 -9.43 0.04 13.34 0.88 0.88 0.00 0.00 0.00

ML31-4B-A 0.29 0.88

ML31-4B 38.9 39.55 -1.64 0.92 2.32 1.12 1.00 12.00 0.17 16.97

ML31-4A 40.2 0.88

ML31-3B 25.9 25.80 0.39 0.14 0.55 1.1 1.06 4.27 0.06 6.03

ML31-3A 25.7 1.01

ML31-2B 22.4 22.85 -1.97 0.64 2.79 1.03 0.96 7.85 0.11 11.11

ML31-2A 23.3 0.88

ML31-1B(3/12/98) 22.3 22.40 -0.45 0.14 0.63 1.14 1.01 12.87 0.18 18.20

ML31-1A(3/12/98) 22.5 0.88

ML31-0B 18.7 18.50 1.08 0.28 1.53 0.88 0.88 0.00 0.00 0.00

ML31-0A 18.3 0.88

ML32-10B 13.6 13.70 -0.73 0.14 1.03 6.9 6.75 2.22 0.21 3.14

ML32-10A 13.8 6.6

ML32-9B Mar-98 8.13 8.07 0.74 0.08 1.05 10.1 10.00 1.00 0.14 1.41

ML32-9A 8.01 9.9

ML32-8B 23.2 22.90 1.31 0.42 1.85 2.7 2.75 -1.82 0.07 2.57

ML32-8A 22.6 2.8

ML32-7B 15.8 15.90 -0.63 0.14 0.89 3.7 3.30 12.12 0.57 17.14

ML32-7A 16 2.9

ML32-6B-B 0.122 0.14 -10.29 0.02 14.56 1.6 1.60 0.00 0.00 0.00

ML32-6B-A 0.15 1.6

ML32-6B 17.7 17.65 0.28 0.07 0.40 3.8 3.45 10.14 0.49 14.35

ML32-6A 17.6 3.1

ML32-5B 43.8 44.15 -0.79 0.49 1.12 4.3 4.15 3.61 0.21 5.11

ML32-5A 44.5 4

ML32-4B 70.8 70.85 -0.07 0.07 0.10 2.5 2.55 -1.96 0.07 2.77

ML32-4A 70.9 2.6

ML32-3D-B 55.3 54.95 0.64 0.49 0.90 1.6 1.60 0.00 0.00 0.00

ML32-3D-A 54.6 1.6

ML32-3B 54 54.75 -1.37 1.06 1.94 1.6 1.60 0.00 0.00 0.00

ML32-3A 55.5 1.6

ML32-2B 22.6 22.45 0.67 0.21 0.94 1.6 1.60 0.00 0.00 0.00

ML32-2A 22.3 1.6

ML32-1B 23.7 24.05 -1.46 0.49 2.06 1.6 1.60 0.00 0.00 0.00

ML32-1A 24.4 1.6

ML33-10B 26.7 26.80 -0.37 0.14 0.53 7.5 8.90 -15.73 1.98 22.25

ML33-10A 26.9 10.3

ML33-9B 15.3 15.45 -0.97 0.21 1.37 2.8 2.70 3.70 0.14 5.24

ML33-9A 15.6 2.6

Table J2 Statistical Results for Selected Cation Duplicates

Sample Session Na Ave % Diff Std Dev % StdDev K Ave % Diff Std Dev % StdDev

Na Na Na Na K K K K

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)
165

36.1 35.55 1.55 0.78 2.19 17.5 17.25 1.45 0.35 2.05 0.0041 0.00 0.00 0.00 0.00

35 17 0.0041

34.5 34.38 0.36 0.38 1.10 20.1 20.03 0.37 0.17 0.85 0.0024 0.00 -27.27 0.00 26.88

33.9 -1.38 19.8 -1.12 0.0036 9.09

34.8 1.24 20.2 0.87 0.0028 -15.15

34.3 -0.22 20 -0.12 0.0044 33.33

20.3 20.50 -0.98 0.28 1.38 12.6 12.70 -0.79 0.14 1.11 0.0707 0.07 -2.15 0.00 3.03

20.7 12.8 0.0738

0.042 0.04 0.00 0.00 0.00 0.05 0.05 0.00 0.00 0.00 0.0024 0.00 0.00 0.00 0.00

0.042 0.05 0.0024

14.5 14.70 -1.36 0.28 1.92 9.9 10.05 -1.49 0.21 2.11 0.0391 0.04 1.16 0.00 1.65

14.9 10.2 0.0382

12.5 12.65 -1.19 0.21 1.68 7.63 7.73 -1.29 0.14 1.83 0.0196 0.02 3.98 0.00 5.63

12.8 7.83 0.0181

10.8 11.00 -1.82 0.28 2.57 6.55 6.65 -1.50 0.14 2.13 0.077 0.08 -1.35 0.00 1.90

11.2 6.75 0.0791

10.8 10.85 -0.46 0.07 0.65 6.55 6.59 -0.61 0.06 0.86 0.0786 0.08 -0.88 0.00 1.25

10.9 6.63 0.08

9.12 9.05 0.77 0.10 1.09 5.46 5.45 0.28 0.02 0.39 0.0024 0.00 0.00 0.00 0.00

8.98 5.43 0.0024

35.2 35.60 -1.12 0.57 1.59 2.2 2.21 -0.23 0.01 0.32 0.0041 0.00 0.00 0.00 0.00

36 2.21 0.0041

29.7 29.55 0.51 0.21 0.72 2.14 2.13 0.71 0.02 1.00 0.0041 0.00 0.00 0.00 0.00

29.4 2.11 0.0041

44.3 43.60 1.61 0.99 2.27 5.4 5.33 1.31 0.10 1.86 0.0041 0.00 0.00 0.00 0.00

42.9 5.26 0.0041

35.8 36.10 -0.83 0.42 1.18 2.6 2.62 -0.57 0.02 0.81 0.0041 0.00 0.00 0.00 0.00

36.4 2.63 0.0041

0.035 0.04 0.00 0.00 0.00 0.1 0.10 0.00 0.00 0.00 0.0041 0.00 0.00 0.00 0.00

0.035 0.1 0.0041

32.7 32.70 0.00 0.00 0.00 3.56 3.58 -0.42 0.02 0.59 0.0041 0.00 0.00 0.00 0.00

32.7 3.59 0.0041

35.1 35.15 -0.14 0.07 0.20 8.93 8.96 -0.28 0.04 0.39 0.0182 0.02 -14.95 0.00 21.15

35.2 8.98 0.0246

24.4 24.45 -0.20 0.07 0.29 12.2 12.25 -0.41 0.07 0.58 0.0826 0.08 -0.18 0.00 0.26

24.5 12.3 0.0829

18.1 18.10 0.00 0.00 0.00 12.6 12.65 -0.40 0.07 0.56 0.0993 0.10 -1.34 0.00 1.90

18.1 12.7 0.102

17.7 17.95 -1.39 0.35 1.97 12.5 12.65 -1.19 0.21 1.68 0.0992 0.10 -1.88 0.00 2.66

18.2 12.8 0.103

11.3 11.20 0.89 0.14 1.26 6.96 6.93 0.51 0.05 0.71 0.0696 0.07 4.11 0.00 5.82

11.1 6.89 0.0641

10.1 10.20 -0.98 0.14 1.39 5.8 5.83 -0.43 0.04 0.61 0.0531 0.06 -4.32 0.00 6.12

10.3 5.85 0.0579

74.5 77.95 -4.43 4.88 6.26 0.1 0.10 0.00 0.00 0.00 0.0041 0.00 0.00 0.00 0.00

81.4 0.1 0.0041

32.6 32.75 -0.46 0.21 0.65 2.86 2.88 -0.69 0.03 0.98 0.0041 0.00 0.00 0.00 0.00

32.9 2.9 0.0041

Ca Ave % Diff Std Dev % StdDev Mg Ave % Diff Std Dev % StdDev Cr Ave % Diff Std Dev % StdDev

Ca Ca Ca Ca Mg Mg Mg Mg Cr Cr Cr Cr

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)
166

ML33-8B 17.8 16.00 11.25 2.55 15.91 4.3 4.90 -12.24 0.85 17.32

ML33-8A 14.2 5.5

ML33-7D-B 14.1 15.95 -11.60 2.62 16.40 5.3 4.85 9.28 0.64 13.12

ML33-7D-A 17.8 4.4

ML33-7B 18.2 18.30 -0.55 0.14 0.77 4.4 4.30 2.33 0.14 3.29

ML33-7A 18.4 4.2

ML33-6B 15.5 15.65 -0.96 0.21 1.36 3.8 3.85 -1.30 0.07 1.84

ML33-6A 15.8 3.9

ML33-5B 16.6 16.35 1.53 0.35 2.16 2.4 2.70 -11.11 0.42 15.71

ML33-5A 16.1 3

ML33-4B 29.1 29.60 -1.69 0.71 2.39 2.6 2.35 10.64 0.35 15.04

ML33-4A 30.1 2.1

ML33-3B-B 1.12 1.14 -1.32 0.02 1.87 1.6 1.60 0.00 0.00 0.00

ML33-3B-A 1.15 1.6

ML33-3B Mar-98 44.8 44.25 1.24 0.78 1.76 2 2.35 -14.89 0.49 21.06

ML33-3A 43.7 2.7

ML34-10B 14.2 14.05 1.07 0.21 1.51 1.6 1.60 0.00 0.00 0.00

ML34-10A 13.9 1.6

ML34-8B 17.8 17.55 1.42 0.35 2.01 1.6 1.60 0.00 0.00 0.00

ML34-8A 17.3 1.6

ML34-7B 16.2 16.15 0.31 0.07 0.44 1.6 1.60 0.00 0.00 0.00

ML34-7A 16.1 1.6

ML34-6B 24.2 24.40 -0.82 0.28 1.16 1.6 1.60 0.00 0.00 0.00

ML34-6A 24.6 1.6

ML34-5B 32.7 32.30 1.24 0.57 1.75 1.6 1.60 0.00 0.00 0.00

ML34-5A 31.9 1.6

ML34-4B 44.1 44.60 -1.12 0.71 1.59 3.3 2.90 13.79 0.57 19.51

ML34-4A 45.1 2.5

ML34-3B-B 1.1 1.10 0.46 0.01 0.65 1.6 1.60 0.00 0.00 0.00

ML34-3B-A 1.09 1.6

ML34-3B 38.8 38.65 0.39 0.21 0.55 1.9 1.75 8.57 0.21 12.12

ML34-3A 38.5 1.6

ML34-2B 44.5 44.75 -0.56 0.35 0.79 1.6 1.60 0.00 0.00 0.00

ML34-2A 45 1.6

ML34-1D-B 29.9 29.30 2.05 0.85 2.90 1.6 1.60 0.00 0.00 0.00

ML34-1D-A 28.7 1.6

ML34-1B 29.9 29.70 0.67 0.28 0.95 1.6 1.60 0.00 0.00 0.00

ML34-1A 29.5 1.6

ML34-0B 23.4 23.65 -1.06 0.35 1.49 1.6 1.60 0.00 0.00 0.00

ML34-0A 23.9 1.6

ML35-10B 10.1 9.99 1.10 0.16 1.56 2.06 2.13 -3.29 0.10 4.65

ML35-10A 9.88 2.2

ML35-9B 12.2 12.15 0.41 0.07 0.58 2.83 2.64 7.40 0.28 10.47

ML35-9A 12.1 2.44

ML35-8B 14.4 14.50 -0.69 0.14 0.98 3.67 3.74 -1.87 0.10 2.65

ML35-8A 14.6 3.81

ML35-7B 15.9 15.70 1.27 0.28 1.80 2.77 3.02 -8.28 0.35 11.71

ML35-7A 15.5 3.27

Table J2 Statistical Results for Selected Cation Duplicates

Sample Session Na Ave % Diff Std Dev % StdDev K Ave % Diff Std Dev % StdDev

Na Na Na Na K K K K

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)
167

39.7 38.55 2.98 1.63 4.22 3.26 3.07 6.36 0.28 9.00 0.0041 0.00 0.00 0.00 0.00

37.4 2.87 0.0041

37.3 38.45 -2.99 1.63 4.23 2.84 3.05 -6.73 0.29 9.52 0.0041 0.00 0.00 0.00 0.00

39.6 3.25 0.0041

41.9 42.00 -0.24 0.14 0.34 3.42 3.39 1.03 0.05 1.46 0.0041 0.00 0.00 0.00 0.00

42.1 3.35 0.0041

43.5 43.90 -0.91 0.57 1.29 4.93 5.00 -1.30 0.09 1.84 0.0041 0.00 0.00 0.00 0.00

44.3 5.06 0.0041

48.5 47.55 2.00 1.34 2.83 7.2 7.07 1.91 0.19 2.70 0.0041 0.00 0.00 0.00 0.00

46.6 6.93 0.0041

49.8 50.15 -0.70 0.49 0.99 10.7 10.80 -0.93 0.14 1.31 0.0041 0.00 0.00 0.00 0.00

50.5 10.9 0.0041

0.003 0.02 -84.21 0.02 119.09 0.1 0.10 0.00 0.00 0.00 0.0041 0.00 0.00 0.00 0.00

0.035 0.1 0.0041

37.3 36.25 2.90 1.48 4.10 11.8 11.50 2.61 0.42 3.69 0.0041 0.00 0.00 0.00 0.00

35.2 11.2 0.0041

8.65 8.60 0.58 0.07 0.82 1.59 1.60 -0.31 0.01 0.44 0.0041 0.00 0.00 0.00 0.00

8.55 1.6 0.0041

16 15.75 1.59 0.35 2.24 4.86 4.78 1.78 0.12 2.52 0.0041 0.00 0.00 0.00 0.00

15.5 4.69 0.0041

17.2 17.20 0.00 0.00 0.00 6.59 6.61 -0.23 0.02 0.32 0.0041 0.00 0.00 0.00 0.00

17.2 6.62 0.0041

11.2 11.35 -1.32 0.21 1.87 2.61 2.64 -0.95 0.04 1.34 0.0041 0.00 0.00 0.00 0.00

11.5 2.66 0.0041

10.6 10.50 0.95 0.14 1.35 1.77 1.76 0.57 0.01 0.80 0.0041 0.00 0.00 0.00 0.00

10.4 1.75 0.0041

9.66 9.74 -0.77 0.11 1.09 2.71 2.72 -0.37 0.01 0.52 0.0041 0.00 0.00 0.00 0.00

9.81 2.73 0.0041

0.035 0.04 0.00 0.00 0.00 0.1 0.10 0.00 0.00 0.00 0.0041 0.00 0.00 0.00 0.00

0.035 0.1 0.0041

10.1 10.15 -0.49 0.07 0.70 1.32 1.31 1.15 0.02 1.63 0.0041 0.00 0.00 0.00 0.00

10.2 1.29 0.0041

9.09 9.15 -0.66 0.08 0.93 4.42 4.46 -0.79 0.05 1.11 0.0041 0.00 0.00 0.00 0.00

9.21 4.49 0.0041

11.3 11.15 1.35 0.21 1.90 9.61 9.48 1.37 0.18 1.94 0.0041 0.00 0.00 0.00 0.00

11 9.35 0.0041

11.3 11.20 0.89 0.14 1.26 9.58 9.53 0.52 0.07 0.74 0.0041 0.00 0.00 0.00 0.00

11.1 9.48 0.0041

3.42 3.47 -1.44 0.07 2.04 0.1 0.10 0.00 0.00 0.00 0.0041 0.00 0.00 0.00 0.00

3.52 0.1 0.0041

3.91 3.89 0.64 0.04 0.91 0.692 0.70 -0.50 0.00 0.71 0.002 0.00 0.00 0.00 0.00

3.86 0.699 0.002

7.09 7.10 -0.07 0.01 0.10 1.16 1.14 2.20 0.04 3.12 0.0032 0.00 23.08 0.00 32.64

7.1 1.11 0.002

13.3 13.35 -0.37 0.07 0.53 2.36 2.37 -0.42 0.01 0.60 0.002 0.00 0.00 0.00 0.00

13.4 2.38 0.002

15.2 15.05 1.00 0.21 1.41 3.34 3.32 0.75 0.04 1.07 0.002 0.00 0.00 0.00 0.00

14.9 3.29 0.002

Ca Ave % Diff Std Dev % StdDev Mg Ave % Diff Std Dev % StdDev Cr Ave % Diff Std Dev % StdDev

Ca Ca Ca Ca Mg Mg Mg Mg Cr Cr Cr Cr

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)
168

ML35-6B 16.1 16.15 -0.31 0.07 0.44 2.68 2.53 5.93 0.21 8.38

ML35-6A 16.2 2.38

ML35-5B 34.6 34.55 0.14 0.07 0.20 2.38 2.36 1.06 0.04 1.50

ML35-5A 34.5 2.33

ML35-4B 50.2 49.70 1.01 0.71 1.42 3.49 3.39 3.10 0.15 4.39

ML35-4A 49.2 3.28

ML35-3B Mar-98 40.5 41.10 -1.46 0.85 2.06 2.26 1.91 18.32 0.49 25.91

ML35-3A 41.7 1.56

ML35-2D-B 24.1 23.80 1.26 0.42 1.78 0.91 1.04 -12.50 0.18 17.68

ML35-2D-A 23.5 1.17

ML35-2B 23.8 24.00 -0.83 0.28 1.18 1.19 1.05 13.88 0.21 19.62

ML35-2A 24.2 0.9

ML35-1B-B 1.05 1.06 -0.94 0.01 1.33 0.78 0.78 0.00 0.00 0.00

ML35-1B-A 1.07 0.78

ML35-1B 20.9 20.65 1.21 0.35 1.71 0.89 0.91 -2.20 0.03 3.11

ML35-1A 20.4 0.93

ML35-0B 14.4 14.50 -0.69 0.14 0.98 0.96 0.87 10.34 0.13 14.63

ML35-0A 14.6 0.78

ML24-6DUP 9.95 31.53 -68.44 30.51 96.79 1.47 3.81 -61.42 3.31 86.86

ML21-6 53.1 6.15

ML21-1DUP 20 20.30 -1.48 0.42 2.09 1.49 1.26 18.73 0.33 26.48

ML21-1 20.6 1.02

ML23-2DUP 44.4 45.30 -1.99 1.27 2.81 1.23 1.01 21.78 0.31 30.80

ML23-2 46.2 0.79

ML23.5-0DU 31 31.20 -0.64 0.28 0.91 1.85 1.81 2.21 0.06 3.13

ML23.5-0 31.4 1.77

ML25-2DUP 42.7 42.65 0.12 0.07 0.17 0.79 0.44 81.61 0.50 115.41

ML25-2 42.6 0.08

ML11-5FDUP Jun-98 48.7 49.50 -1.62 1.13 2.29 7.03 6.94 1.37 0.13 1.94

ML11-5 50.3 6.84

ML12-5FDUP 56 55.60 0.72 0.57 1.02 5.8 5.95 -2.44 0.21 3.45

ML12-5 55.2 6.09

ML13-9FDUP 5.3 4.11 29.11 1.69 41.17 2.92 1.94 50.52 1.39 71.44

ML13-9 2.91 0.96

ML14-6FDUP 4.69 4.95 -5.16 0.36 7.29 1.96 2.01 -2.49 0.07 3.52

ML14-6 5.2 2.06

ML15-5FDUP 6.64 7.07 -6.08 0.61 8.60 1.03 1.12 -7.62 0.12 10.78

ML15-5 7.5 1.2

ML15-3 9.09 8.16 11.47 1.32 16.21 2.33 1.63 43.38 1.00 61.36

ML15-3 7.22 0.92

ML31-10 27.5 27.50 0.00 0.00 0.00 4.8 4.65 3.23 0.21 4.56

ML31-10FDU 27.5 4.5

ML32-9FDUP 6.66 6.72 -0.89 0.08 1.26 9.4 9.40 0.00 0.00 0.00

ML32-9 6.78 9.4

ML33-8FDUP 13.2 13.35 -1.12 0.21 1.59 5.1 5.15 -0.97 0.07 1.37

ML33-8 13.5 5.2

ML34-10 Jun-98 14.3 14.60 -2.05 0.42 2.91 2 2.01 -0.25 0.01 0.35

ML34-10 14.9 2.01

Table J2 Statistical Results for Selected Cation Duplicates

Sample Session Na Ave % Diff Std Dev % StdDev K Ave % Diff Std Dev % StdDev

Na Na Na Na K K K K

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)
169

12.4 12.45 -0.40 0.07 0.57 2.82 2.84 -0.70 0.03 1.00 0.0036 0.00 28.57 0.00 40.41

12.5 2.86 0.002

4.6 4.60 0.00 0.00 0.00 1.9 1.90 0.26 0.01 0.37 0.002 0.00 0.00 0.00 0.00

4.6 1.89 0.002

9.18 9.12 0.71 0.09 1.01 4.21 4.20 0.36 0.02 0.51 0.0025 0.00 11.11 0.00 15.71

9.05 4.18 0.002

10.1 10.35 -2.42 0.35 3.42 7.55 7.72 -2.14 0.23 3.02 0.002 0.00 0.00 0.00 0.00

10.6 7.88 0.002

6.47 6.39 1.25 0.11 1.77 3.51 3.45 1.89 0.09 2.67 0.002 0.00 -16.67 0.00 23.57

6.31 3.38 0.0028

6.3 6.32 -0.32 0.03 0.45 3.36 3.38 -0.44 0.02 0.63 0.002 0.00 -23.08 0.00 32.64

6.34 3.39 0.0032

0.035 0.04 0.00 0.00 0.00 0.074 0.07 0.00 0.00 0.00 0.002 0.00 0.00 0.00 0.00

0.035 0.074 0.002

0.708 0.73 -2.75 0.03 3.89 0.306 0.31 0.00 0.00 0.00 0.0046 0.00 39.39 0.00 55.71

0.748 0.306 0.002

4.39 4.39 0.00 0.00 0.00 2.15 2.17 -0.69 0.02 0.98 0.0022 0.00 -4.35 0.00 6.15

4.39 2.18 0.0024

3.08 17.04 -81.92 19.74 115.86 0.141 8.02 -98.24 11.14 138.94 0.0037 0.36 -98.97 0.50 139.97

31 15.9 0.716

12.1 12.25 -1.22 0.21 1.73 6.89 6.96 -1.01 0.10 1.42 0.002 0.00 0.00 0.00 0.00

12.4 7.03 0.002

4.39 4.43 -0.79 0.05 1.12 6.64 6.69 -0.67 0.06 0.95 0.0034 0.00 0.00 0.00 0.00

4.46 6.73 0.0034

9.32 9.34 -0.16 0.02 0.23 6.56 6.62 -0.91 0.08 1.28 0.0034 0.00 0.00 0.00 0.00

9.35 6.68 0.0034

2.89 2.91 -0.52 0.02 0.73 1.41 1.43 -1.05 0.02 1.49 0.0034 0.00 0.00 0.00 0.00

2.92 1.44 0.0034

29.1 29.35 -0.85 0.35 1.20 13.5 13.65 -1.10 0.21 1.55 0.156 0.17 -6.59 0.02 9.32

29.6 13.8 0.178

28.8 28.70 0.35 0.14 0.49 6.51 6.49 0.31 0.03 0.44 0.0023 0.00 0.00 0.00 0.00

28.6 6.47 0.0023

18.4 11.59 58.76 9.63 83.10 1.83 0.93 96.35 1.27 136.26 0.0031 0.00 0.00 0.00 0.00

4.78 0.034 0.0031

2.42 2.60 -6.74 0.25 9.54 0.034 0.03 0.00 0.00 0.00 0.0031 0.00 0.00 0.00 0.00

2.77 0.034 0.0031

1.04 1.25 -16.47 0.29 23.29 0.636 0.68 -7.02 0.07 9.92 0.005 0.00 23.46 0.00 33.17

1.45 0.732 0.0031

1.11 0.57 95.42 0.77 134.95 0.074 0.05 37.04 0.03 52.38 0.0031 0.00 0.00 0.00 0.00

0.026 0.034 0.0031

31.9 32.00 -0.31 0.14 0.44 5.61 5.61 0.09 0.01 0.13 0.0036 0.00 0.00 0.00 0.00

32.1 5.6 0.0036

26 26.15 -0.57 0.21 0.81 1.8 1.80 0.28 0.01 0.39 0.0036 0.00 0.00 0.00 0.00

26.3 1.79 0.0036

31.3 31.45 -0.48 0.21 0.67 2.28 2.28 0.00 0.00 0.00 0.0036 0.00 -8.86 0.00 12.53

31.6 2.28 0.0043

6.35 6.41 -0.86 0.08 1.21 1.2 1.21 -0.41 0.01 0.59 0.0023 0.00 0.00 0.00 0.00

6.46 1.21 0.0023

Ca Ave % Diff Std Dev % StdDev Mg Ave % Diff Std Dev % StdDev Cr Ave % Diff Std Dev % StdDev

Ca Ca Ca Ca Mg Mg Mg Mg Cr Cr Cr Cr

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)
170

ML34-7FDUP 16.8 16.70 0.60 0.14 0.85 2.61 2.71 -3.51 0.13 4.97

ML34-7 16.6 2.8

ML35-7 13.2 13.15 0.38 0.07 0.54 3.79 3.81 -0.39 0.02 0.56

ML35-7 13.1 3.82

ML21-6DUP 52.5 52.50 0.00 0.00 0.00 6.31 6.48 -2.55 0.23 3.60

ML21-6 52.5 6.64

ML22.5-5DU 22.8 22.80 0.00 0.00 0.00 4.43 4.72 -6.04 0.40 8.55

ML22.5-5 22.8 5

ML22.5-1DU 28.3 28.45 -0.53 0.21 0.75 1.75 1.78 -1.69 0.04 2.38

ML22.5-1 28.6 1.81

ML24-7DUP 7.41 7.42 -0.13 0.01 0.19 2.01 2.06 -2.19 0.06 3.10

ML24-7 7.43 2.1

ML11-10 Dec-98 11.9 11.90 0.00 0.00 0.00 6.16 6.28 -1.83 0.16 2.59

ML11-10DUP 11.9 6.39

ML11-0 38.1 37.85 0.66 0.35 0.93 1.04 1.17 -11.11 0.18 15.71

ML11-0DUP 37.6 1.3

ML12-9DUP 29.6 29.75 -0.50 0.21 0.71 6.44 6.47 -0.46 0.04 0.66

ML12-9 29.9 6.5

ML13-7DUP 5.5 5.46 0.73 0.06 1.04 2.78 2.76 0.72 0.03 1.02

ML13-7 5.42 2.74

ML14-8DUP 5.03 5.03 0.00 0.00 0.00 2.39 2.40 -0.42 0.01 0.59

ML14-8 5.03 2.41

ML15-10 39.6 39.80 -0.50 0.28 0.71 4.77 4.66 2.47 0.16 3.49

ML15-10 40 4.54

ML15-6DUP 12.2 12.10 0.83 0.14 1.17 3.71 3.82 -2.75 0.15 3.89

ML15-6 12 3.92

ML21-7DUP 21.7 21.70 0.00 0.00 0.00 5.42 5.48 -1.00 0.08 1.42

ML21-7 21.7 5.53

ML21-1DUP 22.2 22.25 -0.22 0.07 0.32 0.76 0.77 -1.30 0.01 1.84

ML21-1 22.3 0.78

ML23.5-5DUP 21.2 21.20 0.00 0.00 0.00 1.37 1.23 11.38 0.20 16.10

ML23.5-5 21.2 1.09

ML25-6DUP 12.4 12.35 0.40 0.07 0.57 1.73 1.77 -1.98 0.05 2.80

ML25-6 12.3 1.8

ML31-9DUP 23.9 23.90 0.00 0.00 0.00 4.34 4.40 -1.36 0.08 1.93

ML31-9 23.9 4.46

ML32-10 19.7 19.65 0.25 0.07 0.36 7.77 7.75 0.26 0.03 0.36

ML32-10DUP 19.6 7.73

ML32-5D Dec-98 48.2 47.20 2.12 1.41 3.00 5.34 5.46 -2.11 0.16 2.98

ML32-5 46.2 5.57

ML33-7DUP 19.6 19.73 -0.68 0.32 1.63 4.87 4.78 1.88 0.09 1.88

ML33-7D 19.5 -1.18 4.78 0.00

ML33-7 20.1 1.86 4.69 -1.88

ML34-7DUP 17.5 17.55 -0.28 0.07 0.40 2.31 2.32 -0.22 0.01 0.31

ML34-7 17.6 2.32

ML34-6DUP 17.7 18.55 -4.58 1.20 6.48 2.33 2.27 2.87 0.09 4.06

ML34-6 19.4 2.2

Table J2 Statistical Results for Selected Cation Duplicates

Sample Session Na Ave % Diff Std Dev % StdDev K Ave % Diff Std Dev % StdDev

Na Na Na Na K K K K

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)
171

18.4 18.30 0.55 0.14 0.77 7.57 7.55 0.33 0.04 0.47 0.0023 0.00 0.00 0.00 0.00

18.2 7.52 0.0023

12 11.95 0.42 0.07 0.59 2.6 2.61 -0.38 0.01 0.54 0.0023 0.00 0.00 0.00 0.00

11.9 2.62 0.0023

29.4 29.25 0.51 0.21 0.73 14.2 14.10 0.71 0.14 1.00 0.849 0.84 0.53 0.01 0.75

29.1 14 0.84

30.3 30.60 -0.98 0.42 1.39 4.38 4.43 -1.13 0.07 1.60 0.0016 0.00 0.00 0.00 0.00

30.9 4.48 0.0016

9.14 9.14 0.00 0.00 0.00 5.69 5.68 0.18 0.01 0.25 0.215 0.21 0.94 0.00 1.33

9.14 5.67 0.211

1.89 1.90 -0.53 0.01 0.74 0.108 0.10 6.40 0.01 9.06 0.002 0.00 11.11 0.00 15.71

1.91 0.095 0.0016

28.2 27.85 1.26 0.49 1.78 12.7 12.60 0.79 0.14 1.12 0.0023 0.00 -23.33 0.00 33.00

27.5 12.5 0.0037

18.2 18.15 0.28 0.07 0.39 11.9 11.85 0.42 0.07 0.60 0.168 0.17 -0.59 0.00 0.84

18.1 11.8 0.17

49.9 50.00 -0.20 0.14 0.28 5.26 5.27 -0.09 0.01 0.13 0.0023 0.00 0.00 0.00 0.00

50.1 5.27 0.0023

4.17 4.15 0.60 0.04 0.85 0.056 0.06 0.00 0.00 0.00 0.0023 0.00 0.00 0.00 0.00

4.12 0.056 0.0023

4.03 4.03 0.12 0.01 0.18 0.037 0.04 0.00 0.00 0.00 0.0023 0.00 0.00 0.00 0.00

4.02 0.037 0.0023

32.1 32.30 -0.62 0.28 0.88 1.89 1.88 0.53 0.01 0.75 0.0016 0.00 -23.81 0.00 33.67

32.5 1.87 0.0026

10.6 10.55 0.47 0.07 0.67 2.2 2.20 0.00 0.00 0.00 0.0016 0.00 0.00 0.00 0.00

10.5 2.2 0.0016

26.6 26.40 0.76 0.28 1.07 9.14 9.07 0.77 0.10 1.09 0.0016 0.00 0.00 0.00 0.00

26.2 9 0.0016

12.7 12.80 -0.78 0.14 1.10 7.52 7.57 -0.66 0.07 0.93 0.0019 0.00 100.00 0.00 141.42

12.9 7.62 0

6.69 6.74 -0.67 0.06 0.94 2.67 2.68 -0.37 0.01 0.53 0.0016 0.00 0.00 0.00 0.00

6.78 2.69 0.0016

2.46 2.45 0.41 0.01 0.58 1.12 1.13 -0.88 0.01 1.25 0.0016 0.00 0.00 0.00 0.00

2.44 1.14 0.0016

34.9 34.55 1.01 0.49 1.43 7.04 7.02 0.36 0.04 0.50 0.0019 0.00 8.57 0.00 12.12

34.2 6.99 0.0016

40.4 40.40 0.00 0.00 0.00 2.93 2.95 -0.51 0.02 0.72 0.0028 0.00 27.27 0.00 38.57

40.4 2.96 0.0016

44.6 45.90 -2.83 1.84 4.01 9.47 9.61 -1.41 0.19 1.99 0.0024 0.00 20.00 0.00 28.28

47.2 9.74 0.0016

35.1 35.43 -0.94 0.29 0.81 3.84 3.88 -0.95 0.03 0.83 0.0024 0.00 0.00 0.00 0.00

35.6 0.47 3.89 0.34 0.0024 0.00

35.6 0.47 3.9 0.60 0.0024 0.00

22.6 22.80 -0.88 0.28 1.24 8.22 8.29 -0.78 0.09 1.11 0.0019 0.00 0.00 0.00 0.00

23 8.35 0.0019

19.3 19.30 0.00 0.00 0.00 7.07 7.11 -0.56 0.06 0.80 0.0024 0.00 0.00 0.00 0.00

19.3 7.15 0.0024

Ca Ave % Diff Std Dev % StdDev Mg Ave % Diff Std Dev % StdDev Cr Ave % Diff Std Dev % StdDev

Ca Ca Ca Ca Mg Mg Mg Mg Cr Cr Cr Cr

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)
172

ML35-0 17.1 17.20 -0.58 0.14 0.82 0.41 0.40 2.50 0.01 3.54

ML35-0DUP 17.3 0.39

MW18 135 135.00 0.00 0.00 0.00 1.79 1.50 19.73 0.42 27.91

MW18DUP 135 1.2

MW35D 17.6 17.70 -0.56 0.14 0.80 1.54 1.39 10.79 0.21 15.26

MW35D DUP 17.8 1.24

Average (n = 242) 1.65 2.17 7.69 9.87

Ave = Average

% Diff = % Difference = (Concentration - Ave) / Ave*100

Std Dev = Standard Deviation

% StdDev = Std Dev / Ave*100

Set < = value for statistics

Take absolute value of % Diff for Ave calculation

Table J2 Statistical Results for Selected Cation Duplicates

Sample Session Na Ave % Diff Std Dev % StdDev K Ave % Diff Std Dev % StdDev

Na Na Na Na K K K K

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)
173

1.9 1.91 -0.52 0.01 0.74 1.01 1.03 -1.46 0.02 2.07 0.002 0.00 2.56 0.00 3.63

1.92 1.04 0.0019

11.4 11.40 0.00 0.00 0.00 9.83 9.89 -0.56 0.08 0.79 0.0035 0.00 27.27 0.00 38.57

11.4 9.94 0.002

15.6 15.65 -0.32 0.07 0.45 5.8 5.82 -0.26 0.02 0.36 0.0038 0.00 31.03 0.00 43.89

15.7 5.83 0.002

2.56 3.52 3.68 5.34 5.08 6.44

Ca Ave % Diff Std Dev % StdDev Mg Ave % Diff Std Dev % StdDev Cr Ave % Diff Std Dev % StdDev

Ca Ca Ca Ca Mg Mg Mg Mg Cr Cr Cr Cr

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)
174

Table J3 Summary of Anion Results for Duplicates

Sample Session Cl SO4 NO2 NO3 NO2 + NO3

(mg/L) (mg/L) (mg/L N) (mg/L N) (mg/L N)

ML11-8 Nov-96 24.3 13.2 <0.05 0.07

ML11-8 dup --- --- <.05 0.07

ML11-6 62.5 43.4 <.05 1.48

ML11-6 dup 62.3 43 --- --- 

ML12-8 6.34 4.45 <.05 <.05

ML12-8 dup 6.31 4.51 --- --- 

ML13-8 5.24 <.5 <.05 <.05

ML13-8dup 5.34 <.5

ML13-6 6.38 <.5 <.05 <.05

ML13-6dup <.05 <.05

ML13-5 7.34 <.5 <.05 <.05

ML13-5dup <.05 <.05

ML14-6 7.97 1.12 <.05 <.05

ML14-6dup <.05 <.05

ML14-4 11.9 <.5 <.05 <.05

ML14-4dup 12.1 <.5

ML15-6 25.8 18.2 <.05 <.05

ML15-6dup <.05 <.05

ML15-3 31.6 <.5 <.05 <.05

ML15-3dup 31.2 <.5 <.05 <.05

ML15-2 105 13.7 <.05 <.05

ML15-2dup 105 14

ML21-5 143 138 0.13 5.48

ML21-5 dup 0.13 5.46

ML21-1 15.1 18.4 0.06 0.73

ML21-1dup 14.8 18.2

ML22-7 11/12 10.6 5.92 <.05 <.05

ML22-7 11/12dup 10.4 5.61

ML22-6 44.4 <.5 <.05 <.05

ML22-6dup <.05

ML22-2 32.6 <.5 <.05 <.05

ML22-2dup 32.4 <.5
175

ML24-1 48.4 3.27 <.05 <.05

ML24-1dup 48.2 3.13 <.05 <.05

ML25-5 117 6.73 <.05 <.05

ML25-5dup <.05 <.05

ML25-4 73.6 5.82 <.05 <.05

ML25-4dup <.05

ML25-1 5.31 3.17 <.05 <.05

ML25-1dup 5.33 3.33 --- --- 

ML31-8 45.9 16.1 0.05 0.48

ML31-8dup 45.3 16.2 0.05 0.48

ML31-0 13.4 4.27 <.05 1.4

ML31-0 dup 13.3 4.18 --- --- 

ML32-7 8.27 8.46 <.05 <.05

ML32-7dup --- --- <.05 <.05

ML32-4 Nov-96 112 63.3 0.06 2.87

ML32-4 dup 111 62.3 --- --- 

ML33-8 8.34 8.55 <.05 0.26

ML33-8dup 8.22 8.59

ML33-6 13.1 5.28 <.05 <.05

ML33-6dup <.05 <.05

ML34-6dup 39.1 1.64

ML34-6 39.2 1.6 <.05 <.05

ML34-5 42.5 0.78 <.05 <.05

ML34-5dup <.05 <.05

ML35-10 182 18.5 0.09 1.05

ML35-10dup 180 18.5

ML35-4 95.1 <.5 <0.05 <0.05

ML35-4dup <0.05 <0.05

ML35-1 18.1 <.5 <0.05 <0.05

ML35-1dup 18.2 <.5

ML11-3 Feb-97 55.7 53.1 <.05 2.25

ML11-3 dup 55.0 51.7 <.05 ----- 

Table J3 Summary of Anion Results for Duplicates

Sample Session Cl SO4 NO2 NO3 NO2 + NO3

(mg/L) (mg/L) (mg/L N) (mg/L N) (mg/L N)
176

ML11-8 8.08 12.8 <.05 <.05

ML11-8 dup ----- ----- <.05 <.05

ML12-5 36.2 14.7 <.05 <.05

ML12-5 dup ----- ----- <.05 <.05

ML12-7 3.32 5.50 <.05 0.08

ML12-7 dup 3.25 5.43 <.05 -----

ML13-10 4.75 <.5 <.05 <.05

ML13-10 dup 4.66 <.5 ----- -----

ML13-5 3.57 <.5 <.05 <.05

ML13-5 dup 3.51 <.5 ----- -----

ML13-9 4.39 <.5 <.05 <.05

ML13-9 dup ----- ----- <.05 <.05

ML14-7 3.26 <.5 <.05 <.05

ML14-7 dup 3.18 <.5 ----- -----

ML15-1 55.0 <.5 <.05 <.05

ML15-1 dup 54.5 <.5 <.05 -----

ML15-10 3.25 6.66 <.05 0.55

ML15-10 dup 3.24 6.66 <.05 -----

ML15-5 4.36 4.98 <.05 <.05

ML15-5 dup ----- ----- <.05 <.05

ML21-1 15.6 18.8 <.05 0.82

ML21-1 dup 33.1 35.3 ----- -----

ML21-5 132 131 <.05 4.31

ML21-5 dup 134 130 <.05 -----

ML23-4 38.3 <.5 <.05 <.05

ML23-4 dup 38.1 <.5 ----- -----

ML24-6 11.9 <.5 ----- -----

ML24-6 dup 12.0 <.5 <.05 <.05

ML31-1 Feb-97 17.6 24.2 <.05 0.89

ML31-1 dup ----- ----- ----- 0.90

ML31-10 11.8 18.3 <.05 0.28

ML31-10 dup ----- ----- <.05 0.28

ML31-5 148 63.1 <.05 8.35

ML31-5 dup 153 64.8 <.05 -----

Table J3 Summary of Anion Results for Duplicates

Sample Session Cl SO4 NO2 NO3 NO2 + NO3

(mg/L) (mg/L) (mg/L N) (mg/L N) (mg/L N)
177

ML32-10 8.81 12.2 <.05 1.04

ML32-10 dup ----- ----- <.05 1.05

ML32-8 18.6 24.7 <.05 0.13

ML32-8 dup 18.5 24.4 -----

ML33-10 10.1 5.88 <.05 0.10

Ml33-10 dup ----- ----- <.05 0.09

ML33-5 32.7 8.73 <.05 <.05

Ml33-5 dup 32.5 8.71 ----- -----

ML34-0 14.6 <.5 <.05 <.05

ML34-0 dup 14.4 <.5 ----- -----

ML34-9 27.4 <.5 <.05 <.05

ML34-9 dup 27.1 <.5 ----- -----

ML35-10 17.9 1.91 <.05 <.05

ML35-10 dup ----- ----- <.05 <.05

ML35-3 77.9 <.5 <.05 <.05

ML35-3 dup 77.3 <.5 ----- -----

ML35-4 82.4 <.5 <.05 <.05

ML35-4 dup 82.1 <.5 ----- -----

ML11-9 Jun-97 5.34 10.3 <.1 <.1

ML11-9 dup 5.36 10.4 <.1 <.1

ML11-4 114 108 <.1 3.53

ML11-4 dup 114 106 <.1 3.58

ML12-7 2.22 2.92 <.1 <.1

ML12-7dup 2.17 2.88 <.1 <.1

ML13-0 79.1 <.1 <.1 <.1

ML13-0 dup 79.2 <.1 <.1 <.1

ML14-10 3.85 0.28 <.1 <.1

ML14-10 dup 3.87 0.25 <.1 <.1

ML14-6 2.81 0.1 <.1 <.1

ML14-6 dup 2.79 0.11 <.1 <.1

ML14-6 rep 3.33 <.1 <.1 <.1

ML15-8 1.92 4.25 <.1 <.1

ML15-8 dup 1.93 4.20 <.1 <.1

Table J3 Summary of Anion Results for Duplicates

Sample Session Cl SO4 NO2 NO3 NO2 + NO3

(mg/L) (mg/L) (mg/L N) (mg/L N) (mg/L N)
178

ML21-3 42.4 39.3 <.1 1.07

ML21-3 dup 42.2 39.7 <.1 1.06

ML22-2 39.1 <.1 <.1 <.1

ML22-2 dup 39.2 <.1 <.1 <.1

ML23-3 76.5 <.1 <.1 <.1

ML23-3 dup 77.2 <.1 ----- <.1

ML24-6 Jun-97 12.4 <.1 <.1 <.1

ML24-6 dup 12.5 <.1 <.1 <.1

ML25-4 83.7 <.1 <.1 <.1

ML25-4 dup 83.4 <.1 ----- <.1

ML31-10 18.7 16.8 <.1 <.1

ML31-10 dup 18.7 16.8 <.1 <.1

ML31-5 113 72.4 <.1 5.45

ML31-5 dup 113 72.2 <.1 5.47

ML32-7 14.4 6.6 <.1 <.1

ML32-7dup 14.5 6.61 <.1 <.1

ML33-9 8.82 6.91 <.1 <.1

ML33-9 dup 8.79 6.88 <.1 <.1

ML33-0 18.6 <.1 <.1 <.1

ML33-0 dup 18.7 <.1 <.1 <.1

ML33-0 rep 18.3 <.1 <.1 <.1

ML34-2 31.9 <.1 <.1 <.1

ML34-2 dup 32.2 <.1 <.1 <.1

ML35-10 20.1 2.85 <.1 <.1

ML35-10 dup 19.7 2.85 <.1 <.1

ML35-4 52 1.01 ----- <.1

ML35-4 rep 47.0 <.1 <.1 <.1

ml 11-10 Dup Sep-97 5.80 6.62 -----

ml 11-10 5.80 6.62 0.14

ml 11-2 F. Rep 47.4 66.3 0.62

ml 11-2 52.2 75.2 0.68

ml 11-1 Dup 29.3 35.5 -----

ml 11-1 29.3 35.7 0.46

Table J3 Summary of Anion Results for Duplicates

Sample Session Cl SO4 NO2 NO3 NO2 + NO3

(mg/L) (mg/L) (mg/L N) (mg/L N) (mg/L N)
179

ml 12-10 3.97 8.56 0.66

ml 12-10 Dup ----- ----- 0.65

ml 12-8 Dup 5.80 3.16 -----

ml 12-8 5.80 3.13 0.13

ml 12-2 Unfiltered 90.0 66.1 1.59

ml 12-2 Filtered 90.2 66.8 1.62

ml 13-7 Dup 5.32 1.06 -----

ml 13-7 5.32 1.05 <.1

ml 13-6 Dup ----- ----- <.1

ml 13-6 4.81 1.02 <.1

ml 14-10 3.94 1.13 <.1

ml 14-10 Dup ----- ----- <.1

ml 15-10 9.86 11.0 <.1

ml 15-10 Dup ----- ----- <.1

ml 15-9 Dup 7.91 5.87 -----

ml 15-9 7.94 5.86 <.1

ml 15-0 Dup 55.6 7.03 -----

ml 15-0 55.5 6.95 <.1

ml 22-2 Dup Sep-97 52.6 1.25 -----

ml 22-2 52.6 1.25 <.1

ml 23-3 Dup 53.0 1.05 -----

ml 23-3 53.1 1.06 <.1

ml 24-7 Dup ----- ----- <.1

ml 24-7 14.2 <1 <.1

ml 24-6 Dup 15.5 <1 -----

ml 24-6 15.5 <1 <.1

ml 31-10 22.8 18.8 0.11

ml 31-10 Dup ----- ----- 0.11

ml 31-5B 118 74.2 4.73

ml 31-5 120 77.6 4.75

ml 31-2 Dup 14.3 29.0 -----

ml 31-2 14.3 29.0 0.63

ml 32-0 14.5 4.86 0.71

ml 32-0 Dup 14.5 4.85 -----

Table J3 Summary of Anion Results for Duplicates

Sample Session Cl SO4 NO2 NO3 NO2 + NO3

(mg/L) (mg/L) (mg/L N) (mg/L N) (mg/L N)
180

ml 32-9 Dup 5.86 32.4 -----

ml 32-9 5.87 32.4 0.97

ml 33-8 F. Rep 10.6 14.7 <.1

ml 33-8 Dup ----- ----- <.1

ml 33-8 10.6 14.6 <.1

ml 33-7 F. Rep 12.5 9.3 <.1

ml 33-7 12.6 9.23 <.1

ml 33-6 F. Rep 12.2 2.12 <.1

ml 33-6 Dup 12.2 1.85 -----

ml 33-6 12.2 1.85 <.1

ml 33-4 F. Rep 20.4 1.17 <.1

ml 33-4 19.4 1.15 <.1

ml 33-10 17.1 9.01 <.1

ml 33-10 F. Rep 16.9 9.07 <.1

ml 34-10 12.0 1.44 <.1

ml 34-10 Dup ----- ----- <.1

ml 34-1 Dup 17.3 1.31 -----

ml 34-1 17.2 1.31 <.1

ml 35-4 Dup 30.4 1.07 -----

ml 35-4 30.4 1.07 <.1

ML 11-5 dup Mar-98 70.8 63.4 <.1 2.02

ML 11-5 71.5 62.7 <.1 2.04

ML 11-4 rep 68.7 36.3 <.1 0.76

ML 11-4 68.6 35.7 <.1 0.77

ML 12-9 dup 3.46 23.6 <.1 0.72

ML 12-9 3.4 24 <.1 0.73

ML 12-6 rep 4.12 0.51 <.1 <.1

ML 12-6 3.95 0.5 <.1 <.1

ML 13-5 dup 3 <.1 <.1 <.1

ML 13-5 3 <.1 <.1 <.1

ML 13-2 rep Mar-98 53.1 0.64 <.1 <.1

ML 13-2 52.7 0.63 <.1 <.1

ML 14-3 dup 20.1 <.1 <.1 <.1

ML 14-3 20.1 <.1 <.1 <.1

Table J3 Summary of Anion Results for Duplicates

Sample Session Cl SO4 NO2 NO3 NO2 + NO3

(mg/L) (mg/L) (mg/L N) (mg/L N) (mg/L N)
181

ML 15-9 dup 41.3 8.53 <.1 0.14

ML 15-9 41.8 8.64 <.1 0.14

ML 15-2 rep 46.6 <.1 <.1 <.1

ML 15-2 46.8 <.1 <.1 <.1

ML 15-0 50.8 8.27 <.1 <.1

ML 15-0 dup 50.3 8.4 <.1 <.1

ML 21-7 rep 59.6 17.5 <.1 0.44

ML 21-7 dup 60.3 15.3 <.1 0.52

ML 21-7 60.9 15.6 <.1 0.51

ML 21-3 rep 24.6 29.8 <.1 0.56

ML 21-3 24.3 29.4 <.1 0.51

ML 21-1 rep 13.6 28.2 <.1 0.47

ML 21-1 19.9 16.8 <.1 1.13

ML 22.5-7 rep 6.48 0.76 <.1 <.1

ML 22.5-7 6.51 1.01 <.1 <.1

ML 22.5-4 dup 17 0.89 <.1 <.1

ML 22.5-4 17.2 0.92 <.1 <.1

ML 23-6 dup 16.9 <.1 <.1 <.1

ML 23-6 16.9 <.1 <.1 <.1

ML 23-5 dup 15.9 8.26 <.1 <.1

ML 23-5 15.9 8.27 <.1 <.1

ML 23.5-5 rep 28.6 <.1 <.1 <.1

ML 23.5-5 28.7 <.1 <.1 <.1

ML 23.5-4 36.1 <.1 <.1 <.1

ML 23.5-4 Dup 36.0 <.1 <.1 <.1

ML24-5 rep dup 23.7 <.1 <.1 <.1

ML 24-5 rep 23.9 <.1 <.1 <.1

ML 24-5 23.4 <.1 <.1 <.1

ML 24-2 rep 59.2 <.1 <.1 <.1

ML 24-2 57.9 <.1 <.1 <.1

ML 25-2 rep 53.2 1.48 <.1 <.1

ML 25-2 dup 53.4 1.31 <.1 <.1

ML 25-2 53.5 1.31 <.1 <.1

ML 31-8 dup 69.1 27.7 <.1 0.81

ML 31-8 69.5 28.2 <.1 0.81

Table J3 Summary of Anion Results for Duplicates

Sample Session Cl SO4 NO2 NO3 NO2 + NO3

(mg/L) (mg/L) (mg/L N) (mg/L N) (mg/L N)
182

ML 31-6D114 43.5 <.1 2.83

ML 31-6 117 41.8 <.1 2.85

ML 31-4B dup 0.29 0.48 <.1 <.1

ML 31-4B 0.31 0.46 <.1 <.1

ML 33-7 D20.6 1.42 <.1 <.1

ML 33-7 20.4 1.14 <.1 <.1

ML 33-5 dup 51.8 2.75 <.1 <.1

ML 33-5 52.4 2.89 <.1 <.1

ML 33-1 dup Mar-98 51.7 1.46 <.1 <.1

ML 33-1 51.6 1.52 <.1 <.1

ML 34-6 dup 31.4 <.1 <.1 <.1

ML 34-6 31.7 <.1 <.1 <.1

ML 34-1 D24.7 <.1 <.1 <.1

ML 34-1 24.4 <.1 <.1 <.1

ML 35-2D15 <.1 <.1 <.1

ML 35-2 dup 14.9 <.1 <.1 <.1

ML 35-2 15 <.1 <.1 <.1

ML 12-3 Jun-98 81.6 75.4 <.1 0.99

ML 12-3 REP 81.6 73.3 <.1 0.96

ML 12-9 2.59 13.0 <.1 <.1

ML 12-9 REP 2.68 13.1 <.1 <.1

ML 13-1 REP 61.9 <.1 <.1 <.1

ML 13-1 60.9 <.1 <.1 <.1

ML 14-6 REP 3.84 <.1 <.1 <.1

ML 14-6 4.28 <.1 <.1 <.1

ML 15-5 REP 6.83 0.18 <.1 <.1

ML 15-5 6.31 0.86 <.1 <.1

ML 31-6 REP 111 46.5 <.1 3.28

ML 31-6 108 45.7 <.1 3.14

ML 32-5 REP 81.7 49.2 <.1 1.33

ML 32-5 82.4 52.2 <.1 1.68

ML 33-7 REP 20.1 4.62 <.1 <.1

ML 33-7 20.5 4.44 <.1 <.1

Table J3 Summary of Anion Results for Duplicates

Sample Session Cl SO4 NO2 NO3 NO2 + NO3

(mg/L) (mg/L) (mg/L N) (mg/L N) (mg/L N)
183

ML 34-3 REP 60.2 <.1 <.1 <.1

ML 34-3 51.9 <.1 <.1 <.1

ML 22.5-8 5.37 12.3 <.1 <.1

ML 22.5-8 REP 7.10 <.1 <.1 <.1

ML 22.5-1 REP 21.1 24.0 <.1 0.33

ML 22.5-1 21.1 23.8 <.1 0.29

ML 24-1 REP 36.2 <.1 <.1 <.1

ML 24-1 36.6 <.1 <.1 <.1

ML 25-7 3.90 6.93 <.1 <.1

ML 25-7 REP 3.88 7.02 <.1 <.1

ML 25-2 REP 44.1 1.32 <.1 <.1

ML 25-2 44.2 1.12 <.1 <.1

ML 25-2 Dup Dec-98 43.9 0.59 <0.1 <0.1

ML 25-2 44.1 0.54 <0.1 <0.1

ML 24-3 Dup 47.7 <0.1 <0.1 <0.1

ML 24-3 47.3 <0.1 <0.1 <0.1

ML 21-3 Dup 20.4 43.4 <0.1 0.35

ML 21-3 20.4 43.5 <0.1 0.33

ML 11-0 Dup 57.3 35.1 <0.1 1.54

ML 11-0 57.1 35.3 <0.1 1.61

ML 12-5 Dup Dec-98 69.5 56.2 <0.1 0.29

ML 12-5 69.0 58.2 <0.1 0.27

ML 13-2 Dup 44.3 1.76 <0.1 <0.1

ML 13-2 42.9 1.69 <0.1 <0.1

ML 15-6 Dup 3.67 5.93 <0.1 <0.1

ML 15-6 3.68 5.91 <0.1 <0.1

ML 15-2 Dup 51.2 <0.1 <0.1 <0.1

ML 15-2 51.3 <0.1 <0.1 <0.1

ML 31-3D15.7 31.2 <0.1 0.86

ML 31-3 15.9 30.5 <0.1 0.87

ML 32-5D91.2 30.5 <0.1 1.85

ML 32-5 90.9 31.2 <0.1 1.64

Table J3 Summary of Anion Results for Duplicates

Sample Session Cl SO4 NO2 NO3 NO2 + NO3

(mg/L) (mg/L) (mg/L N) (mg/L N) (mg/L N)
184

ML 33-7D15.3 10.9 <0.1 <0.1

ML 33-7 15.4 11.1 <0.1 <0.1

ML 34-7D14.5 <0.1 <0.1 <0.1

ML 34-7 14.2 <0.1 <0.1 <0.1

ML 35-0 Dup 21.5 1.04 <0.1 <0.1

ML 35-0 21.6 1.09 <0.1 <0.1

Table J3 Summary of Anion Results for Duplicates

Sample Session Cl SO4 NO2 NO3 NO2 + NO3

(mg/L) (mg/L) (mg/L N) (mg/L N) (mg/L N)
185

Table J4 Summary of Organic Results for DuplicatesSample Session TCE c-DCE VC Ave % Diff Std Dev % StdDev Ave % Diff Std Dev % StdDev Ave 

TCE TCE TCE TCE c-DCE c-DCE c-DCE c-DCE VC 

(μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/

MW18 Nov-96 32.6 15.4 2.1 32.15 1.40 0.64 1.98 15.20 1.32 0.28 1.86 2.10 MW18dup 31.7 15 2.1ML11-1 Feb-97 18.5 1.8 ND18.10 2.21 0.57 3.13 1.80 0.00 0.00 0.00 1.00 

ML11-1 dup 17.7 1.8 NDML12-7 NDBLQ ND1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 1.00 

ML12-7 dup NDBLQ NDML13-1 NDNDBLQ 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 1.00 

ML13-1 dup NDNDBLQML21-5 195 91.3 7.3 203.00 -3.94 11.31 5.57 92.50 -1.30 1.70 1.83 7.40 ML21-5 dup 210 93.7 7.5ML14-9 NDBLQ BLQ 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 1.00 

ML14-9 dup NDNDBLQML15-1 NDNDND1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 1.00 

ML15-1 dup NDNDNDML22-4 BLQ ND1.0 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 0.95 

ML22-4 dup NDND0.9ML25-1 133 42.5 0.9 140.00 -5.00 9.90 7.07 44.00 -3.41 2.12 4.82 1.00 ML25-1 dup 147 45.5 1.1ML31-3 2.4 NDND2.60 -7.69 0.28 10.88 1.00 0.00 0.00 0.00 1.00 ML31-3 dup 2.8 NDNDML32-6 7.7 3.3 2.9 7.25 6.21 0.64 8.78 3.26 1.90 0.09 2.69 2.60 

ML32-6 dup 6.8 3.2 2.3ML33-1 22.1 26.5 6.0 22.50 -1.78 0.57 2.51 27.25 -2.75 1.06 3.89 6.20 ML33-1 dup 22.9 28.0 6.4ML33-8 3.7 1.4 ND3.20 15.63 0.71 22.10 1.30 7.69 0.14 10.88 1.00 

ML33-8 dup 2.7 1.2 NDML34-0 NDNDBLQ 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 1.00 

ML34-0 dup NDNDBLQML35-2 NDBLQ 1.5 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 1.49 

ML35-2 dup NDBLQ 1.5MW38 1.3 NDND1.26 4.88 0.09 6.89 1.00 0.00 0.00 0.00 1.00 

MW38 dup 1.2 NDND
186

ML11-6 Jun-97 16.1 13.1 ND15.80 1.90 0.42 2.69 13.10 0.00 0.00 0.00 1.0

ML11-6 dup 15.5 13.1 NDML13-2 ND2.0 1.0 1.00 0.00 0.00 0.00 2.15 -6.98 0.21 9.87 1.0

ML13-2 dup ND2.3 NDML14-5 NDNDBLQ 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 1.0

ML14-5 dup NDNDBLQML15-1 NDNDBLQ 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 1.0

ML15-1 dup NDNDNDML21-6 157 152 36.8 156.00 0.64 1.41 0.91 151.50 0.33 0.71 0.47 36.ML21-6 dup 155 151 37.1ML22-2 ND39.8 3.4 1.00 0.00 0.00 0.00 41.20 -3.40 1.98 4.81 3.4

ML22-2 dup ND42.6 3.5ML23-3 3.1 49.8 8.7 3.25 -4.62 0.21 6.53 52.15 -4.51 3.32 6.37 8.5

ML23-3 dup 3.4 54.5 8.4ML31-3 3.0 NDND2.80 7.14 0.28 10.10 1.00 0.00 0.00 0.00 1.0ML31-3 dup 2.6 NDNDML32-6 9.4 7.4 6.5 9.10 3.30 0.42 4.66 7.30 1.37 0.14 1.94 6.2

ML32-6 dup 8.8 7.2 6.0ML33-8 1.3 1.1 BLQ 1.35 -3.70 0.07 5.24 1.10 0.00 0.00 0.00 1.0

ML33-8 dup 1.4 1.1 BLQML33-0 NDND0.9 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 0.9

ML33-0 dup NDNDBLQML34-1 3.8 3.1 2.0 3.85 -1.30 0.07 1.84 3.05 1.64 0.07 2.32 1.9

ML34-1 dup 3.9 3.0 1.8ML35-4 1.2 8.4 2.6 1.45 -17.24 0.35 24.38 8.95 -6.15 0.78 8.69 2.9ML35-4 dup 1.7 9.5 3.3MW35D NDNDND1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 1.0

MW35D dup NDNDNDMW46 63.9 6.3 2.0 63.30 0.95 0.85 1.34 6.20 1.61 0.14 2.28 1.9

MW46 dup 62.7 6.1 1.9BLO923 Sep-97 NDNDND1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 1.0

BLO923DUP NDNDNDML11-6DUP 2.5 4.6 ND 2.55 -1.96 0.07 2.77 4.60 0.00 0.00 0.00 1.0

ML11-6 2.6 4.6 ND

Table J4 Summary of Organic Results for DuplicatesSample Session TCE c-DCE VC Ave % Diff Std Dev % StdDev Ave % Diff Std Dev % StdDev Av

TCE TCE TCE TCE c-DCE c-DCE c-DCE c-DCE VC 

(μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/
187

ML11-2DUP 23.9 1.0 ND 28.05 -14.80 5.87 20.92 1.15 -13.04 0.21 18.45 1.0

ML11-2 32.2 1.3 NDML12-4DUP 49.9 27.4 BLQ 49.50 0.81 0.57 1.14 27.20 0.74 0.28 1.04 1.0

ML12-4 49.1 27.0 BLQML13-2DUP ND 1.5 0.9 1.00 0.00 0.00 0.00 1.55 -3.23 0.07 4.56 0.9

ML13-2 ND1.6 1.0ML14-10 NDNDBLQ 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 1.0

ML14-10DUP NDNDNDML14-5DUP ND ND BLQ 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 1.0

ML14-5 NDNDBLQML15-9DUP 3.7 4.3 1.1 3.80 -2.63 0.14 3.72 4.40 -2.27 0.14 3.21 1.

ML15-9 3.9 4.5 1.2ML22-4DUP ND ND 1.1 1.10 -9.09 0.14 12.86 1.00 0.00 0.00 0.00 1.0ML22-4 1.2 ND1.0ML23-6DUP NDNDND1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 1.0

ML23-6 NDNDNDML25-1DUP 17.1 6.6 1.4 17.25 -0.87 0.21 1.23 6.50 1.54 0.14 2.18 1.2

ML25-1 17.4 6.4 1.1ML31-5B 861 46.3 22.0 866.00 -0.58 7.07 0.82 47.65 -2.83 1.91 4.01 22

ML31-5 871 49.0 23.2ML31-2DUP 28.6 ND ND 29.00 -1.38 0.57 1.95 1.00 0.00 0.00 0.00 1.0

ML31-2 29.4 NDNDML32-4DUP 302 51.4 16.3 313.00 -3.51 15.56 4.97 54.50 -5.69 4.38 8.04 17

ML32-4 324 57.6 17.8ML33-5DUP ND 2.2 3.0 1.00 0.00 0.00 0.00 2.20 0.00 0.00 0.00 3.0

ML33-5 ND2.2 3.0ML33-2A 1.2 1.0 12.0 1.10 9.09 0.14 12.86 1.00 0.00 0.00 0.00 14ML33-2 NDBLQ 17.2ML34-10 Sep-97 NDND1.0 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 0.9

ML34-10 DUP ND ND 0.9ML34-4DNDND1.6 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 1.5

ML34-4 NDND1.5ML34-2 FDUP 1.1 3.7 2.0 1.00 10.00 0.14 14.14 3.70 0.00 0.00 0.00 2.2ML34-2 0.9 3.7 2.4

Table J4 Summary of Organic Results for DuplicatesSample Session TCE c-DCE VC Ave % Diff Std Dev % StdDev Ave % Diff Std Dev % StdDev Av

TCE TCE TCE TCE c-DCE c-DCE c-DCE c-DCE VC 

(μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/
188

ML35-7 FDUP ND 1.4 1.9 1.00 0.00 0.00 0.00 1.40 0.00 0.00 0.00 1.8

ML35-7 ND1.4 1.8MW18 NDNDND1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 1.0

MW18 Dup NDNDNDMW50 548 14.7 ND542.50 1.01 7.78 1.43 16.55 -11.18 2.62 15.81 1.0

MW50 FDUP 537 18.4 1.1ML-12-4 DUPLICAMar-98 52.7 3.8 BLQ 52.88 -0.34 0.25 0.48 3.58 6.33 0.32 8.95 1.0

ML-12-4 53.1 3.4 BLQML-13-4 DUPLICATE ND ND BLQ 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 1.2

ML-13-4 NDND1.4ML-14-6 FIELD DUPLICATE ND ND BLQ 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 1.0

ML-14-6 DUPLICATE ND ND BLQ 0.00 0.00 ML-14-6 NDNDBLQ 0.00 0.00 ML-15-9 DUPLICATE 1.6 BLQ BLQ 1.45 10.34 0.21 14.63 1.00 0.30 0.00 0.43 1.0ML-15-9 1.3 1.0 BLQML-15-7 DUPLICATE 1.5 2.1 1.4 1.40 7.14 0.14 10.10 2.01 2.44 0.07 3.45 1.3ML-15-7 1.3 2.0 1.4ML-21-1 DUPLICATE 3658.0 BLQ ND 3614.00 1.22 62.23 1.72 1.00 0.00 0.00 0.00 1.0

ML-21-1 3570.0 BLQ NDML-23-2 DUPLICATE 1.1 9.9 2.7 1.05 4.76 0.07 6.73 9.61 3.06 0.42 4.32 3.0

ML-23-2 BLQ 9.3 3.5ML-22.5-5 FIELD DUPLICATE 6.3 6.1 20.5 7.00 -10.00 0.75 10.79 6.22 -2.27 0.21 3.31 24.8ML-22.5-5 DUPLICATE 7.8 6.1 26.7 11.43 -1.53 ML-22.5-5 6.9 6.5 27.4 -1.43 3.79 ML-22.5-1 DUPLICATE 695.2 3.8 BLQ 720.95 -3.57 36.42 5.05 3.66 4.58 0.24 6.48 1.0

ML-22.5-1 746.7 3.5 NDML-24-4 DUPLICATMar-98 1.4 8.7 2.2 1.20 16.67 0.28 23.57 8.37 3.54 0.42 5.00 1.9

ML-24-4 ND8.1 1.7ML-24-1 DUPLICATE NDNDND1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 1.0

ML-24-1 NDNDNDML-25-2 FIELD DUPLICATE 2.4 2.9 2.5 2.68 -10.58 0.40 14.96 2.74 7.33 0.28 10.36 2.8

ML-25-2 3.0 2.5 3.1ML-31-6D318.1 40.2 25.5 315.30 0.89 3.96 1.26 40.45 -0.51 0.29 0.73 25.6ML-31-6 312.5 40.7 25.9

Table J4 Summary of Organic Results for DuplicatesSample Session TCE c-DCE VC Ave % Diff Std Dev % StdDev Ave % Diff Std Dev % StdDev Av

TCE TCE TCE TCE c-DCE c-DCE c-DCE c-DCE VC 

(μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/
189

ML-31-1 Dup 34.3 2.6 2.2 34.10 0.59 0.28 0.83 2.85 -8.77 0.35 12.41 2.3ML-31-1 33.9 3.1 2.5ML-32-6B NDNDND22.25 -95.51 30.05 135.07 5.86 -82.92 6.87 117.27 5.4ML-32-6 43.5 10.7 9.8ML-32-3D321.3 3.3 BLQ 321.68 -0.13 0.59 0.18 3.26 1.33 0.06 1.89 1.0

ML-32-3 322.1 3.2 BLQML-33-9 DUPLICATE BLQ ND BLQ 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 1.0

ML-33-9 NDNDNDML-33-7 BLQ 5.1 24.7 1.00 0.00 0.00 0.00 5.03 1.52 0.11 2.15 24

ML-33-7DBLQ 5.0 24.3ML-34-1D1.3 1.5 1.9 1.29 0.08 0.00 0.11 1.42 6.72 0.14 9.50 1.9

ML-34-1 1.3 1.3 2.1ML-35-3 DUPLICATE 2.8 5.6 4.9 2.85 -1.75 0.07 2.48 5.65 -0.81 0.07 1.15 5.2

ML-35-3 2.9 5.7 5.5MW-46 Field Dup 239.5 7.7 2.5 225.78 6.07 19.38 8.58 7.27 6.49 0.67 9.18 2.4

MW-46 212.1 6.8 2.5MW-18 DUPLICATE 7.0 6.2 BLQ 6.84 2.34 0.23 3.31 7.01 -11.59 1.15 16.39 1.0MW-18 6.7 7.8 BLQML11-8 Jun-98 BLQ 3.0 ND1.00 0.00 0.00 0.00 2.76 9.52 0.37 13.46 1.0ML11-8 6/11/98 BLQ 2.5 NDML11-5 53.0 30.4 BLQ 52.99 0.00 0.00 0.00 30.42 0.00 0.00 0.00 1.0

ML11-5 6/11/98 53.0 30.4 BLQML12-9 NDNDND1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 1.0

ML12-9 F. Dup NDNDNDML-33-7 Jun-98 ND3.7 22.9 1.00 0.00 0.00 0.00 3.81 -2.92 0.16 4.12 23

ML-33-7 ND3.9 23.4ML21-5 FDUP Dec-98 156 137 11.7 153.68 1.36 2.96 1.93 135.82 0.79 1.51 1.11 12ML21-5 152 135 12.6ML22.5-2 FDUP 14.6 2.2 <1.0 14.44 1.09 0.22 1.54 2.53 -13.18 0.47 18.64 1.0

ML22.5-2 14.3 2.9 <1.0ML23.5-1 FDUP 3.0 7.0 4.1 2.97 1.82 0.08 2.57 7.25 -3.68 0.38 5.21 4.2

ML23.5-1 2.9 7.5 4.4ML24-7 FDUP NDNDND1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 1.0

ML24-7 NDND<1.0

Table J4 Summary of Organic Results for DuplicatesSample Session TCE c-DCE VC Ave % Diff Std Dev % StdDev Ave % Diff Std Dev % StdDev Av

TCE TCE TCE TCE c-DCE c-DCE c-DCE c-DCE VC 

(μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/
190

ML24-1 FDUP ND 7.8 1.2 1.00 0.00 0.00 0.00 8.14 -4.58 0.53 6.47 1.

ML24-1 ND8.5 1.4ML25-4 FDUP ND 19.0 4.8 1.00 0.00 0.00 0.00 19.62 -3.18 0.88 4.49 5.ML25-4 ND20.2 5.3ML11-7 FDUP 1.2 4.6 ND 1.20 3.33 0.06 4.71 4.86 -6.08 0.42 8.59 1.

ML11-7 1.2 5.2 NDML11-5 FDUP 26.8 33.2 <1.0 27.48 -2.55 0.99 3.61 32.27 2.89 1.32 4.08 1.ML11-5 28.2 31.3 <1.0ML12-1 FDUP 11.8 <1.0 ND 11.89 -0.96 0.16 1.36 1.05 -4.76 0.07 6.73 1.

ML12-1 12.0 1.1 NDML13-5 FDUP ND ND 1.0 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 1.

ML13-5 NDND1.2ML14-7 FDUP ND ND <1.0 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 1.

ML14-7 NDND<1.0ML15-5 FDUP ND <1.0 <1.0 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 1.

ML15-5 ND<1.0 <1.0ML31-3D6.8 NDND7.24 -5.82 0.60 8.23 1.00 0.00 0.00 0.00 1.

ML31-3 7.7 NDNDML32-5D470 48.1 17.8 447.75 5.02 31.82 7.11 48.96 -1.84 1.27 2.60 18ML32-5 425 49.9 19.5ML33-7DDec-98 ND2.8 15.6 1.00 0.00 0.00 0.00 2.86 -3.27 0.13 4.63 16

ML33-7 ND2.9 16.7ML34-5 FDUP ND 1.1 2.9 1.00 0.00 0.00 0.00 1.11 0.32 0.00 0.45 3.

ML34-5 ND1.1 3.5MW18 NDNDND1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 1.

MW18 FDUP NDNDNDAverage (n = 96) 3.52 4.96 2.98 4.31 

BLQ Below limit of quantitat Ave = Average (use absolute value)

BLQ = 1 ppb % Diff = % Difference = (Concentration - Ave) / Ave*100

NDNone detected Std Dev = Standard Deviation

% StdDev = Std Dev / Ave*100

Table J4 Summary of Organic Results for DuplicatesSample Session TCE c-DCE VC Ave % Diff Std Dev % StdDev Ave % Diff Std Dev % StdDev Av

TCE TCE TCE TCE c-DCE c-DCE c-DCE c-DCE V

(μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg
191

This page intentionally left "BLANK."
192

Table J5 Summary of Inorganic Results for Blanks

Field Blanks Session Na K Ca Mg Fe Mn Co Mo Al 

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)

BLANK CATI Nov-96 0.27 <2.2 <0.057 0 <0.012 <0.0043 <0.0078 <0.034 <0.050

BLANK EQUI 0.37 <2.2 0.063 <0.14 <0.012 <0.0043 <0.0078 <0.034 <0.050

FIELD BLAN 0.19 <2.2 <0.057 <0.14 <0.012 <0.0043 <0.0078 <0.034 <0.050

DECON BLAN 0.75 <2.2 <0.057 <0.14 <0.012 <0.0043 <0.0078 <0.034 <0.050

DECON BLAN 0.79 <2.2 0.079 <0.14 <0.012 <0.0043 <0.0078 <0.034 <0.050

BLANK#7 .4 0.126 <0.68 0.04 <0.075 <0.0028 <0.0037 <0.0094 <0.0040 <0.098

DECON.45 B <0.034 <0.68 <0.032 <0.075 0.0036 <0.0037 <0.0094 <0.0040 <0.098

DECON.45 B 0.387 <0.68 <0.032 <0.075 <0.0028 <0.0037 <0.0094 <0.0040 <0.098

ML11-BLANK Feb-97 0.841 <0.98 <0.023 <0.077 <0.0067 <0.0022 <0.0073 <0.016 <0.039

ML12-BLANK <0.044 <0.98 <0.023 <0.077 <0.0067 <0.0022 <0.0073 <0.016 <0.039

ML14-BLANK <0.044 <0.98 <0.023 <0.077 <0.0067 <0.0022 <0.0073 <0.016 <0.039

ML15-BLANK <0.044 <0.98 <0.023 <0.077 <0.0067 <0.0022 <0.0073 <0.016 <0.039

ML31-BLANK <0.044 <0.98 <0.023 <0.077 <0.0067 <0.0022 <0.0073 <0.016 <0.039

ML32-BLANK <0.044 <0.98 <0.023 <0.077 <0.0067 <0.0022 <0.0073 <0.016 <0.039

ML33-BLANK <0.044 <0.98 <0.023 <0.077 <0.0067 <0.0022 <0.0073 <0.016 <0.039

ML34-BLANK 0.056 <0.98 <0.023 <0.077 0.0204 <0.0022 <0.0073 <0.016 <0.039

ML35-BLANK <0.044 <0.98 <0.023 <0.077 <0.0067 <0.0022 <0.0073 <0.016 <0.039

BLANK 226 <0.044 <0.98 <0.023 <0.077 <0.0067 <0.0022 <0.0073 <0.016 <0.039

BLANK 227 0.909 <0.98 <0.023 <0.077 <0.0067 <0.0022 <0.0073 <0.016 <0.039

ML11-BLANK Jun-97 0.696 <0.58 <0.013 <0.073 <0.0063 <0.0036 <0.0060 <0.092 <0.026

ML12-BLANK 0.564 <0.58 <0.013 <0.073 0.001 <0.0036 <0.0060 <0.092 <0.026

ML13-BLANK 0.897 <0.58 <0.013 <0.073 <0.0063 <0.0036 <0.0060 <0.092 0.04

ML14-BLANK 0.593 <0.58 <0.013 <0.073 0.0084 <0.0036 <0.0060 <0.092 <0.026

ML15-BLANK <0.045 0.62 <0.013 <0.073 <0.0063 0.0047 <0.0060 <0.092 <0.026

ML31-BLANK 0.854 <0.53 <0.030 <0.039 0.072 0.0056 <0.0071 <0.056 <0.030

ML32-BLANK 0.895 <0.53 <0.030 <0.039 <0.012 <0.0032 <0.0071 <0.056 <0.030

ML33-BLANK <0.047 <0.53 0.091 <0.039 <0.012 <0.0032 <0.0071 <0.056 <0.030

ML34-BLANK 0.59 <0.53 0.05 <0.039 <0.012 <0.0032 <0.0071 <0.056 <0.030

ML35-BLANK 0.592 <0.67 <0.039 <0.071 <0.0071 <0.0040 <0.0074 <0.062 <0.027

BL922A Sep-97 1.016 <0.90 0.342 0.102 <0.0074 <0.0004 <0.0075 <0.011 <0.028

BL922ADUP 1.001 <0.90 0.313 0.071 <0.0074 <0.0004 <0.0075 <0.011 <0.028

WLBLANK970 0.595 <0.90 <0.0058 <0.038 <0.0074 <0.0004 <0.0075 <0.011 <0.028

WLBLANK970 0.562 <0.90 <0.0058 <0.038 <0.0074 <0.0004 <0.0075 <0.011 <0.028

BL922B 0.56 <0.90 <0.0058 <0.038 <0.0074 <0.0004 <0.0075 <0.011 <0.028

BL922BDUP 0.619 <0.90 <0.0058 <0.038 <0.0074 <0.0004 <0.0075 <0.011 <0.028

1-BLANK 0.556 <0.90 <0.0058 <0.038 <0.0074 <0.0004 <0.0075 <0.011 <0.028

1-BLANKDUP 0.58 <0.90 <0.0058 <0.038 <0.0074 <0.0004 <0.0075 <0.011 <0.028

BL0923 0.651 <0.90 <0.0058 <0.038 <0.0074 0.0007 <0.0075 <0.011 <0.028

BL0923DUP 0.632 <0.90 <0.0058 <0.038 <0.0074 <0.0004 <0.0075 <0.011 <0.028

ML12-6BLANK Mar-98 0.175 <0.79 <0.043 <0.073 <0.019 <0.010 <0.0081 <0.0054 <0.033

ML13BLANK <0.30 <0.86 0.058 <0.059 <0.0062 <0.0028 <0.0064 <0.018 <0.036

F.BLANK6/9 Jun-98 <0.032 <0.92 <0.024 <0.060 0.0088 <0.0032 <0.0035 <0.010 <0.031

F.BLANK6/12/98 <0.032 <0.92 0.032 <0.060 <0.0028 <0.0032 <0.0035 <0.010 0.049

F.BLANK6/13/98 <0.032 <0.92 0.318 0.141 <0.0028 <0.0032 <0.0035 <0.010 <0.031
193

As Se Cd Be Cu Cr Ni Zn 

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)

<0.031 <0.036 <0.0027 <0.0035 <0.0047 <0.0029 <0.013 <0.0014

<0.031 <0.036 <0.0027 <0.0035 <0.0047 <0.0029 <0.013 <0.0014

<0.031 <0.036 <0.0027 <0.0035 <0.0047 <0.0029 <0.013 <0.0014

<0.031 <0.036 <0.0027 <0.0035 <0.0047 <0.0029 <0.013 <0.0014

<0.031 <0.036 <0.0027 <0.0035 <0.0047 <0.0029 <0.013 <0.0014

<0.025 <0.031 <0.0015 <0.0009 <0.0036 <0.0012 <0.014 <0.0013

<0.025 <0.031 <0.0015 <0.0009 <0.0036 <0.0012 <0.014 <0.0013

<0.025 <0.031 <0.0015 <0.0009 <0.0036 0.0023 <0.014 <0.0013

<0.014 <0.015 <0.0021 <0.0011 <0.0033 <0.0036 <0.011 <0.0017

<0.014 <0.015 <0.0021 <0.0011 <0.0033 <0.0036 <0.011 <0.0017

<0.014 <0.015 <0.0021 <0.0011 0.0035 <0.0036 <0.011 0.0057

<0.014 <0.015 <0.0021 <0.0011 <0.0033 <0.0036 <0.011 0.0062

<0.014 <0.015 <0.0021 <0.0011 <0.0033 <0.0036 <0.011 <0.0017

0.023 <0.015 <0.0021 <0.0011 <0.0033 <0.0036 <0.011 <0.0017

<0.014 <0.015 <0.0021 <0.0011 <0.0033 <0.0036 <0.011 <0.0017

<0.014 <0.015 <0.0021 <0.0011 <0.0033 0.0051 <0.011 <0.0017

<0.014 <0.015 <0.0021 <0.0011 <0.0033 <0.0036 <0.011 <0.0017

<0.014 0.016 <0.0021 <0.0011 <0.0033 <0.0036 <0.011 <0.0017

<0.014 <0.015 <0.0021 <0.0011 <0.0033 <0.0036 <0.011 0.0035

<0.015 <0.022 <0.0025 <0.0032 <0.0047 <0.0044 <0.011 <0.0015

<0.015 <0.022 <0.0025 <0.0032 <0.0047 <0.0044 <0.011 <0.0015

<0.015 <0.022 <0.0025 <0.0032 <0.0047 <0.0044 <0.011 <0.0015

<0.015 0.025 <0.0025 <0.0032 <0.0047 <0.0044 <0.011 <0.0015

<0.015 <0.022 <0.0025 <0.0032 <0.0047 <0.0044 <0.011 <0.0015

<0.016 <0.016 <0.0013 <0.0028 <0.0052 <0.0037 <0.0072 0.0037

<0.016 <0.016 <0.0013 <0.0028 <0.0052 <0.0037 <0.0072 <0.0009

<0.016 <0.016 <0.0013 <0.0028 <0.0052 <0.0037 <0.0072 0.0057

0.021 <0.016 <0.0013 <0.0028 <0.0052 <0.0037 <0.0072 0.0012

<0.012 <0.024 <0.0022 <0.0035 <0.0052 <0.0020 <0.0098 0.0028

<0.020 <0.024 <0.0023 <0.0004 <0.0036 <0.0041 <0.014 <0.0022

<0.020 <0.024 <0.0023 <0.0004 <0.0036 <0.0041 <0.014 <0.0022

<0.020 <0.024 <0.0023 <0.0004 <0.0036 <0.0041 <0.014 <0.0022

<0.020 <0.024 <0.0023 <0.0004 <0.0036 <0.0041 <0.014 <0.0022

<0.020 <0.024 <0.0023 <0.0004 <0.0036 <0.0041 <0.014 0.0027

<0.020 <0.024 <0.0023 <0.0004 <0.0036 <0.0041 <0.014 0.0032

<0.020 <0.024 <0.0023 <0.0004 <0.0036 <0.0041 <0.014 <0.0022

<0.020 <0.024 <0.0023 <0.0004 <0.0036 <0.0041 <0.014 <0.0022

<0.020 <0.024 <0.0023 <0.0004 <0.0036 <0.0041 <0.014 0.0003

<0.020 <0.024 <0.0023 <0.0004 <0.0036 <0.0041 <0.014 0.0026

<0.019 <0.029 <0.0028 <0.0018 <0.0063 <0.0034 <0.013 0.0071

<0.020 <0.021 0.0015 <0.0012 <0.0025 <0.0025 <0.015 <0.016

<0.024 <0.021 <0.0013 <0.0018 <0.0054 <0.0016 <0.010 <0.0012

<0.024 <0.021 <0.0013 <0.0018 <0.0054 <0.0016 <0.010 <0.0012

<0.024 <0.021 <0.0013 <0.0018 <0.0054 <0.0016 <0.010 <0.0012

Field Blanks Session

BLANK CATI Nov-96

BLANK EQUI

FIELD BLAN

DECON BLAN

DECON BLAN

BLANK#7 .4

DECON.45 B

DECON.45 B

ML11-BLANK Feb-97

ML12-BLANK

ML14-BLANK

ML15-BLANK

ML31-BLANK

ML32-BLANK

ML33-BLANK

ML34-BLANK

ML35-BLANK

BLANK 226 

BLANK 227 

ML11-BLANK Jun-97

ML12-BLANK

ML13-BLANK

ML14-BLANK

ML15-BLANK

ML31-BLANK

ML32-BLANK

ML33-BLANK

ML34-BLANK

ML35-BLANK

BL922A Sep-97

BL922ADUP 

WLBLANK970

WLBLANK970

BL922B 

BL922BDUP 

1-BLANK 

1-BLANKDUP

BL0923 

BL0923DUP 

ML12-6BLANK Mar-98

ML13BLANK 

F.BLANK6/9 Jun-98

F.BLANK6/12/98

F.BLANK6/13/98
194

Ag Tl Pb Sr V Ba B Ti 

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)

<0.0063 <0.014 <0.021 <0.0006 <0.010 <0.0020 <0.029 <0.016

<0.0063 <0.014 <0.021 <0.0006 <0.010 <0.0020 <0.029 <0.016

<0.0063 <0.014 <0.021 <0.0006 <0.010 <0.0020 <0.029 <0.016

<0.0063 <0.014 <0.021 <0.0006 <0.010 <0.0020 <0.029 <0.016

<0.0063 <0.014 <0.021 <0.0006 <0.010 <0.0020 <0.029 <0.016

<0.0068 <0.025 <0.0031 0.0009 <0.017 <0.0022 <0.036 <0.0041

<0.0068 <0.025 <0.0031 <0.0005 <0.017 <0.0022 <0.036 <0.0041

<0.0068 <0.025 <0.0031 <0.0005 <0.017 <0.0022 <0.036 <0.0041

<0.0054 <0.022 <0.015 <0.0005 <0.0046 <0.0021 <0.030 <0.0053

<0.0054 <0.022 <0.015 <0.0005 <0.0046 <0.0021 <0.030 <0.0053

<0.0054 <0.022 <0.015 <0.0005 <0.0046 <0.0021 <0.030 <0.0053

<0.0054 <0.022 <0.015 <0.0005 0.0013 <0.0021 <0.030 <0.0053

<0.0054 <0.022 <0.015 <0.0005 <0.0046 <0.0021 <0.030 <0.0053

<0.0054 <0.022 <0.015 <0.0005 <0.0046 <0.0021 <0.030 <0.0053

<0.0054 0.026 <0.015 <0.0005 <0.0046 <0.0021 <0.030 <0.0053

<0.0054 <0.022 <0.015 <0.0005 <0.0046 <0.0021 <0.030 <0.0053

<0.0054 <0.022 <0.015 <0.0005 0.0061 <0.0021 <0.030 <0.0053

<0.0054 <0.022 <0.015 <0.0005 <0.0046 <0.0021 <0.030 <0.0053

<0.0054 <0.022 <0.015 0.0015 0.0067 0.0163 0.033 <0.0053

<0.0026 <0.026 <0.0092 <0.0001 <0.0065 <0.0033 <0.046 <0.0073

<0.0026 <0.026 <0.0092 <0.0001 <0.0065 <0.0033 <0.046 <0.0073

<0.0026 <0.026 <0.0092 0.0002 <0.0065 <0.0033 <0.046 <0.0073

<0.0026 <0.026 <0.0092 <0.0001 <0.0065 <0.0033 <0.046 <0.0073

<0.0026 <0.026 <0.0092 0.0002 <0.0065 <0.0033 <0.046 <0.0073

<0.0054 <0.033 <0.011 <0.0003 <0.0085 <0.0015 <0.056 <0.0089

<0.0054 <0.033 <0.011 <0.0003 <0.0085 <0.0015 <0.056 <0.0089

<0.0054 <0.033 <0.011 <0.0003 <0.0085 <0.0015 <0.056 <0.0089

<0.0054 <0.033 <0.011 0.0012 <0.0085 <0.0015 <0.056 <0.0089

0.0039 <0.029 <0.0085 <0.0001 <0.0043 <0.0025 <0.055 <0.0049

<0.0049 <0.014 <0.017 0.0022 <0.010 <0.0023 <0.14 <0.013

<0.0049 <0.014 <0.017 0.002 <0.010 <0.0023 <0.14 <0.013

<0.0049 0.021 <0.017 <0.0004 <0.010 <0.0023 <0.14 <0.013

<0.0049 0.023 <0.017 <0.0004 <0.010 <0.0023 <0.14 <0.013

<0.0049 <0.014 <0.017 <0.0004 <0.010 <0.0023 <0.14 <0.013

<0.0049 <0.014 <0.017 <0.0004 <0.010 <0.0023 <0.14 <0.013

<0.0049 0.014 <0.017 <0.0004 <0.010 <0.0023 <0.14 <0.013

<0.0049 <0.014 <0.017 <0.0004 <0.010 <0.0023 <0.14 <0.013

<0.0049 0.008 <0.017 <0.0004 <0.010 <0.0023 <0.14 <0.013

<0.0049 <0.014 <0.017 <0.0004 <0.010 <0.0023 <0.14 <0.013

<0.0030 <0.028 <0.020 0.001 <0.013 <0.0050 <0.079 <0.013

<0.0027 <0.030 <0.0060 0.0008 <0.0060 <0.0034 <0.060 <0.010

<0.0033 <0.036 <0.019 <0.0002 <0.0036 <0.0004 <0.018 <0.0080

<0.0033 <0.036 <0.019 0.0002 0.0099 <0.0004 <0.018 <0.0080

<0.0033 <0.036 <0.019 0.0011 <0.0036 0.0018 <0.018 <0.0080

Field Blanks Session

BLANK CATI Nov-96

BLANK EQUI

FIELD BLAN

DECON BLAN

DECON BLAN

BLANK#7 .4

DECON.45 B

DECON.45 B

ML11-BLANK Feb-97

ML12-BLANK

ML14-BLANK

ML15-BLANK

ML31-BLANK

ML32-BLANK

ML33-BLANK

ML34-BLANK

ML35-BLANK

BLANK 226 

BLANK 227 

ML11-BLANK Jun-97

ML12-BLANK

ML13-BLANK

ML14-BLANK

ML15-BLANK

ML31-BLANK

ML32-BLANK

ML33-BLANK

ML34-BLANK

ML35-BLANK

BL922A Sep-97

BL922ADUP 

WLBLANK970

WLBLANK970

BL922B 

BL922BDUP 

1-BLANK 

1-BLANKDUP

BL0923 

BL0923DUP 

ML12-6BLANK Mar-98

ML13BLANK 

F.BLANK6/9 Jun-98

F.BLANK6/12/98

F.BLANK6/13/98
195

F.BLANK6/15/98 <0.032 <0.92 0.194 <0.060 <0.0028 <0.0032 0.0065 <0.010 <0.031

F.BLANK6/16/98 <0.032 <0.92 <0.024 <0.060 <0.0028 <0.0032 <0.0035 <0.010 <0.031

ML12-3BLK 0.254 <0.43 <0.026 <0.034 0.0042 <0.0040 <0.0059 <0.0029 <0.023

ML13BLK 0.189 <0.43 <0.026 <0.034 <0.0026 <0.0040 <0.0059 <0.0029 <0.023

ML14BLANK 1.03 <0.43 0.081 <0.034 <0.0026 <0.0040 0.0066 <0.0029 <0.023

ML15BLK 5.03 <0.43 1.59 0.65 <0.0026 <0.0040 <0.0059 <0.0029 <0.023

ML31BLK 0.641 <0.43 <0.026 <0.034 <0.0026 <0.0040 <0.0059 <0.0029 <0.023

ML32BLK 0.249 <0.43 <0.026 <0.034 <0.0026 <0.0040 <0.0059 <0.0029 <0.023

ML33BLK 0.015 <0.43 <0.026 <0.034 <0.0026 <0.0040 0.0063 <0.0029 <0.023

ML35 BLK 0.117 <0.43 <0.026 <0.034 <0.0026 0.0054 <0.0059 <0.0029 <0.023

FB 12/3 Dec-98 0.254 <0.23 <0.028 <0.029 0 <0.0029 <0.0047 <0.0035 <0.030

FB 12/4 <0.021 <0.23 <0.028 <0.029 0 <0.0029 <0.0047 <0.0035 <0.030

FB 12/5 <0.021 <0.23 <0.028 <0.029 0 <0.0029 <0.0047 <0.0035 <0.030

FB 12/6 <0.021 0.28 <0.028 <0.029 0.0033 <0.0029 <0.0047 <0.0035 <0.030

FB 12/9 <0.021 <0.23 <0.028 <0.029 0 <0.0029 <0.0047 <0.0035 <0.030

FB 12/10 <0.021 <0.23 <0.028 <0.029 0.0034 <0.0029 <0.0047 <0.0035 <0.030

ML31 BLANK** 0.415 <0.23 <0.028 <0.029 0.0034 <0.0029 <0.0047 <0.0035 <0.030

ML32 BLANK** 1.3 <0.23 <0.028 <0.029 0 <0.0029 <0.0047 <0.0035 <0.030

ML33 BLANK** 1.55 <0.23 <0.028 <0.029 0.0167 <0.0029 <0.0047 <0.0035 <0.030

Trip Blanks Session Na K Ca Mg Fe Mn Co Mo Al 

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)

TRIP BLANK Feb-97 0.82 <0.50 0.042 <0.035 0.0149 <0.0028 <0.0055 <0.010 <0.027

TRIP BLANK Jun-97 <0.047 <0.67 0.073 <0.071 <0.0071 0.0066 <0.0074 <0.062 <0.027

TRIP BLANK dup Jun-97 0.067 <0.67 0.052 <0.071 <0.0071 0.0082 <0.0074 <0.062 <0.027

TRIP B.6/9 Jun-98 <0.032 <0.92 <0.024 <0.060 <0.0028 <0.0032 <0.0035 <0.010 <0.031

TRIPBLK(UW) Jun-98 5.11 <0.43 1.69 0.698 <0.0026 0.0077 <0.0059 <0.0029 <0.023

Field Blanks Session Na K Ca Mg Fe Mn Co Mo Al 

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)
196

F.BLANK6/15/98

F.BLANK6/16/98

ML12-3BLK 

ML13BLK 

ML14BLANK 

ML15BLK 

ML31BLK 

ML32BLK 

ML33BLK 

ML35 BLK 

FB 12/3 Dec-98

FB 12/4 

FB 12/5 

FB 12/6 

FB 12/9 

FB 12/10 

ML31 BLANK**

ML32 BLANK**

ML33 BLANK**

Trip Blanks Session

TRIP BLANK Feb-97

TRIP BLANK Jun-97

TRIP BLANK dup Jun-97

TRIP B.6/9 Jun-98

TRIPBLK(UW) Jun-98

<0.024 <0.021 <0.0013 <0.0018 <0.0054 <0.0016 <0.010 <0.0012

<0.024 <0.021 <0.0013 <0.0018 <0.0054 <0.0016 <0.010 <0.0012

<0.020 <0.029 <0.0018 <0.0007 <0.0027 <0.0031 0.0102 <0.0014

<0.020 <0.029 <0.0018 <0.0007 <0.0027 <0.0031 0.0052 <0.0014

<0.020 <0.029 <0.0018 <0.0007 <0.0027 <0.0031 0.013 <0.0014

<0.020 <0.029 <0.0018 <0.0007 <0.0027 <0.0031 <0.0043 <0.0014

<0.020 <0.029 <0.0018 <0.0007 <0.0027 <0.0031 <0.0043 <0.0014

<0.020 <0.029 <0.0018 <0.0007 <0.0027 0.0032 <0.0043 <0.0014

<0.020 <0.029 <0.0018 <0.0007 <0.0027 <0.0031 <0.0043 <0.0014

<0.020 <0.029 <0.0018 <0.0007 <0.0027 <0.0031 <0.0043 <0.0014

<0.020 <0.019 <0.0017 <0.0005 <0.0041 0.0023 <0.011 <0.0014

<0.020 <0.019 <0.0017 <0.0005 <0.0041 0.0024 <0.011 <0.0014

<0.020 <0.019 <0.0017 <0.0005 <0.0041 <0.0019 <0.011 <0.0014

<0.020 <0.019 <0.0017 <0.0005 <0.0041 0.0024 <0.011 <0.0014

<0.020 0.021 <0.0017 <0.0005 <0.0041 <0.0019 <0.011 <0.0014

<0.020 <0.019 <0.0017 <0.0005 <0.0041 <0.0019 <0.011 <0.0014

<0.020 <0.019 0.0018 <0.0005 <0.0041 <0.0019 <0.011 <0.0014

<0.020 <0.019 <0.0017 <0.0005 <0.0041 0.0024 <0.011 <0.0014

<0.020 <0.019 <0.0017 <0.0005 <0.0041 <0.0019 0.016 <0.0014

As Se Cd Be Cu Cr Ni Zn 

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)

<0.010 <0.017 <0.0019 <0.0015 <0.0040 <0.0028 <0.010 0.0024

0.014 <0.024 <0.0022 <0.0035 <0.0052 <0.0020 <0.0098 <0.0010

<0.012 <0.024 <0.0022 <0.0035 <0.0052 <0.0020 0.0105 0.0027

<0.024 <0.021 <0.0013 <0.0018 <0.0054 <0.0016 <0.010 <0.0012

<0.020 <0.029 <0.0018 <0.0007 <0.0027 <0.0031 <0.0043 <0.0014

As Se Cd Be Cu Cr Ni Zn 

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)

Field Blanks Session
197

F.BLANK6/15/98

F.BLANK6/16/98

ML12-3BLK 

ML13BLK 

ML14BLANK 

ML15BLK 

ML31BLK 

ML32BLK 

ML33BLK 

ML35 BLK 

FB 12/3 Dec-98

FB 12/4 

FB 12/5 

FB 12/6 

FB 12/9 

FB 12/10 

ML31 BLANK**

ML32 BLANK**

ML33 BLANK**

Trip Blanks Session

TRIP BLANK Feb-97

TRIP BLANK Jun-97

TRIP BLANK dup Jun-97

TRIP B.6/9 Jun-98

TRIPBLK(UW) Jun-98

<0.0033 <0.036 <0.019 0.0003 <0.0036 <0.0004 <0.018 <0.0080

<0.0033 <0.036 <0.019 <0.0002 <0.0036 <0.0004 <0.018 <0.0080

<0.0032 <0.016 <0.011 <0.0001 <0.0055 <0.0013 <0.018 <0.015

<0.0032 0.016 <0.011 <0.0001 <0.0055 <0.0013 <0.018 <0.015

<0.0032 <0.016 <0.011 0.0021 <0.0055 <0.0013 <0.018 <0.015

<0.0032 <0.016 <0.011 0.0141 <0.0055 0.0027 <0.018 <0.015

<0.0032 <0.016 <0.011 <0.0001 <0.0055 <0.0013 <0.018 <0.015

<0.0032 <0.016 <0.011 0.0003 0.0067 <0.0013 <0.018 <0.015

<0.0032 <0.016 <0.011 0.0002 <0.0055 <0.0013 <0.018 <0.015

<0.0032 <0.016 <0.011 <0.0001 <0.0055 <0.0013 <0.018 <0.015

<0.0023 <0.025 <0.014 <0.0002 <0.0059 <0.0012 <0.016 <0.0044

<0.0023 <0.025 <0.014 <0.0002 <0.0059 <0.0012 <0.016 <0.0044

<0.0023 <0.025 <0.014 <0.0002 <0.0059 <0.0012 <0.016 <0.0044

0.0026 <0.025 <0.014 <0.0002 0.0129 <0.0012 <0.016 <0.0044

<0.0023 <0.025 <0.014 <0.0002 <0.0059 <0.0012 <0.016 <0.0044

<0.0023 <0.025 <0.014 <0.0002 <0.0059 <0.0012 <0.016 <0.0044

<0.0023 <0.025 <0.014 <0.0002 <0.0059 <0.0012 <0.016 <0.0044

<0.0023 <0.025 <0.014 <0.0002 <0.0059 <0.0012 <0.016 <0.0044

<0.0023 <0.025 <0.014 <0.0002 <0.0059 <0.0012 <0.016 <0.0044

Ag Tl Pb Sr V Ba B Ti 

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)

<0.011 <0.014 <0.014 <0.0003 <0.0058 <0.0022 0.036 <0.014

0.0033 <0.029 <0.0085 0.0005 <0.0043 <0.0025 <0.055 <0.0049

<0.0027 <0.029 <0.0085 0.0005 <0.0043 <0.0025 <0.055 <0.0049

<0.0033 <0.036 <0.019 <0.0002 0.0042 <0.0004 <0.018 <0.0080

<0.0032 <0.016 <0.011 0.015 <0.0055 0.004 <0.018 <0.015

Ag Tl Pb Sr V Ba B Ti 

(mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)

Field Blanks Session
198

Table J6 Summary of Anion Results for Blanks

Field Blanks Session Cl SO4 NO2 NO3 NO2 + NO3

(mg/L) (mg/L) (mg/L N) (mg/L N) (mg/L N)

Field blank Nov-96 <.5 <.5 <.05 <.05

blank <.5 <.5 <.05 <.05

blank <.5 <.5 <.05 <.05

ML field blank <.5 <.5 <.05 <.05

Decon blank 11/19 <.5 <.5 <.05 <.05

blank 4 <.5 <.5 <.05 <.05

ML decon blank 11/20 <.5 <.5 <.05 <.05

ML blank <.5 <.5 <.05 <.05

no data Feb-97

ML11-blank Jun-97 <.1 <.1 <.1 <.1

ML12-blank <.1 <.1 <.1 <.1

ML13-blank <.1 <.1 <.1 <.1

ML14-blank <.1 0.33 <.1 <.1

ML31-blank <.1 <.1 <.1 <.1

ML32-blank <.1 <.1 <.1 <.1

ML33-blank <.1 <.1 <.1 <.1

ML34-blank <.1 <.1 <.1 <.1

ML35-blank <.1 <.1 <.1 <.1

Field bl 6/20 <.1 <.1 <.1 <.1

Field bl 6/21 <.1 <.1 <.1 <.1

Field bl 6/24 <.1 <.1 <.1 <.1

Field bl 6/25 <.1 <.1 <.1 <.1

F. Blank Sep-97 2.7 <1 <.1

9/17 F. Blank <2 <1 <.1

9/18 F. Blank <2 <1 <.1

9/21 F. Blank <2 <1 <.1

9/23 F. Blank <2 <1 <.1

ML 12-0 blk Mar-98 <.1 <.1 <.1 <.1

ML 13 (field blank) <.1 <.1 <.1 <.1

ML 14 (field blank) <.1 <.1 <.1 <.1

FB 3-10-98 10 9.57 <.1 <.1

FB 3-12-98 9.5 9.41 <.1 <.1

FB 3-13-98 9.62 9.46 <.1 <.1

FB 3-14-98 3.4 <.1 <.1 0.12

FB 3-17-98 1.88 <.1 <.1 <.1

FB 3-18-98 9.78 9.34 <.1 <.1

6/9 field blank Jun-98 <.1 <.1 <.1 <.1

6/12 field blank <.1 0.28 <.1 <.1

6/13 field blank <.1 <.1 <.1 <.1

6/15 field blank 0.24 <.1 <.1 <.1

6/16 field blank <.1 <.1 <.1 <.1
199

F.B. 12-3 Dec-98 <0.1 <0.1 <0.1 <0.1

F.B. 12-4 <0.1 <0.1 <0.1 <0.1

F.B. 12-5 <0.1 <0.1 <0.1 <0.1

F.B. 12-6 <0.1 <0.1 <0.1 <0.1

F.B. 12-9 <0.1 <0.1 <0.1 <0.1

F.B.12-10 <0.1 <0.1 <0.1 <0.1

Trip Blanks Session Cl SO4 NO2 NO3 NO2 + NO3

(mg/L) (mg/L) (mg/L N) (mg/L N) (mg/L N)

Trip blank Nov-96 <.5 <.5 <.05 <.05

Trip blank Jun-97 <.1 1.22 <.1 <.1

Trip blank Jun-97 <.1 1.53 <.1 <.1

Trip Blank Mar-98 <.1 <.1 <.1 <.1

6/9 trip blank Jun-98 <.1 <.1 <.1 <.1

6/16 travel blank Jun-98 1.81 4.99 <.1 <.1

12-1 TRIP BLANK Dec-98 <0.1 <0.1 <0.1 <0.1

Table J6 Summary of Anion Results for Blanks

Field Blanks Session Cl SO4 NO2 NO3 NO2 + NO3

(mg/L) (mg/L) (mg/L N) (mg/L N) (mg/L N)
200

Table J7 Summary of Organic Results for Blanks

Field Blanks Session TCE c-DCE VC

(μg/L) (μg/L) (μg/L)

Decon Blank Nov-96 ND ND ND

Equipment Blank NDNDND

Field Blank 11/7 NDNDND

Field Blank 11/9 NDNDND

Field Blank 11/12 NDNDND

no data Feb-97

ML11-blank Jun-97 1.1 NDND

ML12-blank NDNDND

ML13-blank NDNDND

ML14-blank NDNDND

ML31-blank NDNDND

ML32-blank NDNDND

ML33-blank NDNDND

ML34-blank NDNDND

ML35-blank NDNDND

Field bl 6/21 NDNDND

Field bl 6/24 NDNDND

Field bl 6/25 NDNDND

Field blank NDNDND

Blank 9/17 Sep-97 NDNDND

Blank 9/18 NDNDND

Blank 9/21 NDNDND

Blank 9/22 NDNDND

Blank 9/23 NDNDND

BLO922A NDNDND

BLO922B NDNDND

BLO923 NDNDND

BLO923DUP ND ND ND

FIELD BLANK 3\17\98 Mar-98 ND 4.9 ND

FIELD BLANK 3\18\98 ND 1.1 ND

FIELD BLANK 3\15\98 ND ND ND

FIELD BLANK 3\10\98 BLQ 7.8 ND

FIELD BLANK 3\11\98 BLQ 8.6 ND

FIELD BLANK 3\12\98 BLQ 4.5 ND

FIELD BLANK 3\13\98 ND 4.8 ND

FIELD BLANK 3/14/98 ND 7.3 ND

FIELD BLANK 6\9\98 Jun-98 ND ND ND

FIELD BLANK 6\12\98 ND 4.4 ND

FIELD BLANK 6\13\98 ND 7.1 ND

FIELD BLANK 6\15\98 ND 6.1 ND

FIELD BLANK 6\16\98 ND 7.6 ND

ML-14-BLANK NDNDND

ML-15 BLANK NDNDND

ML-32-BLANK ND1.7 ND
201

FIELD BLANK 12\3\98 Dec-98 ND ND ND

FIELD BLANK12/6/98 ND 1.666 ND

FIELD BLANK12/9/98 ND ND <1.0

FIELD BLANK12/10/98 ND 1.209 <1.0

ML31-BLANK ND2.41 ND

ML32-BLANK NDNDND

ML33-BLANK NDNDND

Trip Blanks Session TCE c-DCE VC

(μg/L) (μg/L) (μg/L)

Trip Blank Nov-96 NDNDND

Trip blank Jun-97 NDNDND

TRIP BLANK 1 Mar-98 NDNDND

TRIP BLANK 2 Mar-98 NDNDND

TRIP BLANK 6\9\98 Jun-98 NDNDND

TRIP BLANK 6\16\98 Jun-98 NDNDND

TRIP BLANK 12\1\98 Dec-98 ND ND ND

NDNone detected

Table J7 Summary of Organic Results for Blanks

Field Blanks Session TCE c-DCE VC

(μg/L) (μg/L) (μg/L)
202

Table J8 Comparison of Organic Samples Analyzed by ManTech and UW

Sample Session Ave % Diff

TCE c-DCE VC TCE c-DCE VC TCE TCE

(μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L)

ML31-0 Nov-96 144 NDND149 6 ND146.50 -1.71

ML31-2 136 NDND135 NDND135.50 0.37

ML31-4 108 NDND111 NDND109.50 -1.37

ML31-6 356 49.3 31.3 352 88 55.7 354.00 0.56

ML31-8 205 34.1 19.9 213 75 28.4 209.00 -1.91

ML31-10 5.4 2.2 2.8 5.4 ND2.8 5.40 0.00

ML32-0 169 1.7 BLQ 188 NDND178.50 -5.32

ML32-2 78.5 NDND74 NDND76.25 2.95

ML32-4 465 47.8 26 482 63 18.3 473.50 -1.80

ML32-6 48 7.3 4.1 46 ND4.5 47.00 2.13

ML32-8 2.5 1.3 BLQ 2.6 NDND2.55 -1.96

ML32-10 5.5 BLQ NDNA NA NA NA NA

ML33-0 ND1.3 1.4 1 NDND1.00 0.00

ML33-2 23.4 13.4 3.5 20 ND1.2 21.70 7.83

ML33-4 10.7 13.8 5.5 9.8 ND2.3 10.25 4.39

ML33-6 2.2 3.3 1.2 2.7 NDND2.45 -10.20

ML33-8 6.9 2.4 BLQ 7.8 NDND7.35 -6.12

ML33-10 8.5 3.8 BLQ 8.4 NDND8.45 0.59

ML34-0 NDND1.4 NDNDND1.00 0.00

ML34-2 5.3 16.4 5.7 5.3 28 3.1 5.30 0.00

ML34-4 ND1.5 1.9 NDNDND1.00 0.00

ML34-6 NDBLQ 1.2 ND ND ND1.00 0.00

ML34-8 ND1.3 1.6 1.1 NDND1.05 -4.76

ML34-10 NDBLQ ND 1.8 ND ND1.40 -28.57

ML35-0 3.7 BLQ 1.1 3.7 NDND3.70 0.00

ML35-2 ND1.1 1.1 1.1 NDND1.05 -4.76

ML35-4 ND6.5 2.2 NDNDND1.00 0.00

ML35-6 1.7 1.2 1.6 1.7 NDND1.70 0.00

ML35-8 3.5 2.9 4.9 2.6 ND2.6 3.05 14.75

ML35-10 NDNDNDNDNDND1.00 0.00

ML31-0 Feb-97 49.5 NDND53 6 ND51.25 -3.41

ML31-2 45.6 BLQ ND50 NDND47.80 -4.60

ML31-4 531 BLQ ND545 NDND538.00 -1.30

ML31-6 680 52.2 30 692 54 37 686.00 -0.87

ML31-8 73.5 14.1 7.5 84 13 7 78.74 -6.67

ML31-10 4.5 2.1 3.6 6 NDND5.27 -13.78

ML32-0 80.9 6.6 BLQ 74 10 ND77.46 4.47

ML32-2 4.7 1.0 ND644 NDND324.34 -98.56

ML32-4 724 64.9 36.8 6.1 68 27 365.05 98.33

ML32-6 7.7 3.3 2.9 7 ND6 7.35 4.76

ML32-8 2.0 1.3 BLQ 2.1 NDND2.06 -1.97

ML32-10 4.8 BLQ NDNDNDND2.92 65.79

ML33-0 NDBLQ 1.1 ND ND ND1.00 0.00

ML33-2 4.9 26.5 28.8 2.8 20 20 3.87 27.60

ML33-4 BLQ 1.8 2.0 NDNDND1.00 0.00

EPA Analyzed UW Analyzed
203

Std Dev % StdDev Ave % Diff Std Dev % StdDev Ave % Diff Std Dev % Std Dev

TCE TCE c-DCE c-DCE c-DCE c-DCE VC VC VC VC

(μg/L) (μg/L) (μg/L) (μg/L) (μg/L)

3.54 2.41 3.55 -71.83 3.61 101.58 1.00 0.00 0.00 0.00

0.71 0.52 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00

2.12 1.94 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00

2.83 0.80 68.80 -28.34 27.58 40.08 43.50 -28.05 17.25 39.66

5.66 2.71 54.45 -37.37 28.78 52.85 24.15 -17.60 6.01 24.89

0.00 0.00 1.60 37.50 0.85 53.03 2.80 0.00 0.00 0.00

13.44 7.53 1.35 25.93 0.49 36.66 1.00 0.00 0.00 0.00

3.18 4.17 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00

12.02 2.54 55.15 -13.33 10.39 18.85 22.15 17.38 5.44 24.58

1.41 3.01 4.15 75.90 4.45 107.34 4.30 -4.65 0.28 6.58

0.07 2.77 1.15 13.04 0.21 18.45 1.00 0.00 0.00 0.00

NA NA NA NA NA NA NA NA NA NA

0.00 0.00 1.15 13.04 0.21 18.45 1.20 16.67 0.28 23.57

2.40 11.08 7.20 86.11 8.77 121.78 2.35 48.94 1.63 69.21

0.64 6.21 7.40 86.49 9.05 122.31 3.90 41.03 2.26 58.02

0.35 14.43 2.15 53.49 1.63 75.64 1.10 9.09 0.14 12.86

0.64 8.66 1.70 41.18 0.99 58.23 1.00 0.00 0.00 0.00

0.07 0.84 2.40 58.33 1.98 82.50 1.00 0.00 0.00 0.00

0.00 0.00 1.00 0.00 0.00 0.00 1.20 16.67 0.28 23.57

0.00 0.00 22.35 -26.62 8.41 37.65 4.40 29.55 1.84 41.78

0.00 0.00 1.25 20.00 0.35 28.28 1.45 31.03 0.64 43.89

0.00 0.00 1.00 0.00 0.00 0.00 1.10 9.09 0.14 12.86

0.07 6.73 1.15 13.04 0.21 18.45 1.30 23.08 0.42 32.64

0.57 40.41 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00

0.00 0.00 1.00 0.00 0.00 0.00 1.05 4.76 0.07 6.73

0.07 6.73 1.05 4.76 0.07 6.73 1.05 4.76 0.07 6.73

0.00 0.00 3.75 73.33 3.89 103.71 1.60 37.50 0.85 53.03

0.00 0.00 1.10 9.09 0.14 12.86 1.30 23.08 0.42 32.64

0.64 20.87 1.95 48.72 1.34 68.90 3.75 30.67 1.63 43.37

0.00 0.00 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00

2.47 4.83 3.55 -71.83 3.61 101.58 1.00 0.00 0.00 0.00

3.11 6.51 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00

9.90 1.84 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00

8.49 1.24 53.10 -1.69 1.27 2.40 33.50 -10.45 4.95 14.78

7.43 9.44 13.55 4.08 0.78 5.78 7.27 3.69 0.38 5.22

1.03 19.48 1.57 36.22 0.80 51.23 2.29 56.31 1.82 79.64

4.90 6.32 8.31 -20.34 2.39 28.76 1.00 0.00 0.00 0.00

452.07 139.38 1.01 0.70 0.01 0.98 1.00 0.00 0.00 0.00

507.63 139.06 66.46 -2.32 2.18 3.28 31.89 15.34 6.92 21.69

0.49 6.73 2.16 53.75 1.64 76.01 4.45 -34.83 2.19 49.26

0.06 2.78 1.17 14.64 0.24 20.70 1.00 0.00 0.00 0.00

2.72 93.05 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00

0.00 0.00 1.00 0.00 0.00 0.00 1.07 6.72 0.10 9.50

1.51 39.03 23.26 14.02 4.61 19.83 24.39 17.99 6.20 25.44

0.00 0.00 1.41 28.93 0.58 40.91 1.48 32.36 0.68 45.77
204

ML33-6 1.7 1.8 1.1 1.4 NDND1.53 8.56

ML33-8 3.7 1.4 NDNDNDND2.35 57.45

ML33-10 NA NA NA 2.9 NDNDNA NA

ML34-0 NDNDBLQ NDNDND1.00 0.00

ML34-2 8.3 18.1 4.4 6.5 20 ND7.39 12.10

ML34-4 NDBLQ 1.5 ND ND ND1.00 0.00

ML34-6 NDBLQ 1.7 ND ND ND1.00 0.00

ML34-8 ND1.1 1.2 NA NA NA NA NA

ML34-10 ND2.0 1.6 NDNDND1.00 0.00

ML35-0 23.0 NDND 20 NDND21.52 7.08

ML35-2 NDBLQ 1.5 ND ND ND1.00 0.00

ML35-4 2.8 22.4 3.7 2.6 31 ND2.68 2.80

ML35-6 0.9 1.4 2.7 1 NDND0.96 -4.38

ML35-8 BLQ 1.5 4.2 NDNDND1.00 0.00

ML35-10 ND1.3 1.6 NDNDND1.00 0.00

ML31-0 Jun-97 80.3 NDND 93 NDND86.65 -7.33

ML31-2 42.3 NDND 23 NDND32.65 29.56

ML31-4 180 NDND198 NDND189.00 -4.76

ML31-6 635 42.9 29.7 663 63 39 649.00 -2.16

ML31-8 Jun-97 109 14.9 13.6 92 8.6 ND100.50 8.46

ML31-10 3.8 6.3 10.4 3.8 NDND3.80 0.00

ML32-0 84.6 1.7 ND92 NDND88.30 -4.19

ML32-2 7.1 NDND 7 NDND7.05 0.71

ML32-4 421 25.1 11.7 396 2.5 3.9 408.50 3.06

ML32-6 9.1 7.3 6.3 11 NDND10.05 -9.45

ML32-8 1.4 5.1 7.3 1.1 NDND1.25 12.00

ML32-10 3.0 NDND3.1 BLQ ND3.05 -1.64

ML33-0 NDND0.9 NDNDND1.00 0.00

ML33-2 4.9 3.4 16.3 2.7 ND16 3.80 28.95

ML33-4 ND3.2 2.9 NDNDND1.00 0.00

ML33-6 ND1.2 2.1 NDNDND1.00 0.00

ML33-8 1.4 1.1 BLQ 1 BLQ ND1.20 16.67

ML33-10 0.9 NDNDNDNDND0.95 -5.26

ML34-0 NDNDBLQ NDNDND1.00 0.00

ML34-2 1.2 5.1 1.7 BLQ 2.6 ND1.10 9.09

ML34-4 NDND1.2 NDNDND1.00 0.00

ML34-6 NDND1.3 NDNDND1.00 0.00

ML34-8 NDND1.1 NDNDND1.00 0.00

ML34-10 NDND1.0 NDNDND1.00 0.00

ML35-0 2.7 NDBLQ 2.4 ND ND2.55 5.88

ML35-2 NDND1.8 NDNDND1.00 0.00

ML35-4 1.5 9.0 3.0 1.1 5.2 ND1.30 15.38

ML35-6 NDND1.8 NDNDND1.00 0.00

ML35-8 ND1.3 3.2 NDNDND1.00 0.00

ML35-10 ND1.8 1.7 NDNDND1.00 0.00

Table J8 Comparison of Organic Samples Analyzed by ManTech and UW

Sample Session Ave % Diff

TCE c-DCE VC TCE c-DCE VC TCE TCE

 (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L)

EPA Analyzed UW Analyzed
205

0.19 12.10 1.40 28.57 0.57 40.41 1.07 6.72 0.10 9.50

1.91 81.24 1.20 16.67 0.28 23.57 1.00 0.00 0.00 0.00

NA NA NA NA NA NA NA NA NA NA

0.00 0.00 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00

1.27 17.11 19.06 -4.96 1.34 7.01 2.71 63.15 2.42 89.30

0.00 0.00 1.00 0.00 0.00 0.00 1.24 19.03 0.33 26.91

0.00 0.00 1.00 0.00 0.00 0.00 1.33 24.64 0.46 34.85

NA NA NA NA NA NA NA NA NA NA

0.00 0.00 1.50 33.33 0.71 47.14 1.30 23.08 0.42 32.64

2.15 10.01 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00

0.00 0.00 1.00 0.00 0.00 0.00 1.24 19.35 0.34 27.37

0.11 3.97 26.71 -16.08 6.07 22.74 2.35 57.42 1.91 81.20

0.06 6.20 1.20 16.98 0.29 24.01 1.85 45.81 1.20 64.79

0.00 0.00 1.23 18.60 0.32 26.30 2.61 61.63 2.27 87.15

0.00 0.00 1.15 13.04 0.21 18.45 1.30 23.08 0.42 32.64

8.98 10.36 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00

13.65 41.80 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00

12.73 6.73 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00

19.80 3.05 52.95 -18.98 14.21 26.84 34.35 -13.54 6.58 19.14

12.02 11.96 11.75 26.81 4.45 37.91 7.30 86.30 8.91 122.05

0.00 0.00 3.65 72.60 3.75 102.68 5.70 82.46 6.65 116.61

5.23 5.93 1.35 25.93 0.49 36.66 1.00 0.00 0.00 0.00

0.07 1.00 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00

17.68 4.33 13.80 81.88 15.98 115.80 7.80 50.00 5.52 70.71

1.34 13.37 4.15 75.90 4.45 107.34 3.65 72.60 3.75 102.68

0.21 16.97 3.05 67.21 2.90 95.05 4.15 75.90 4.45 107.34

0.07 2.32 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00

0.00 0.00 1.00 0.00 0.00 0.00 0.95 -5.26 0.07 7.44

1.56 40.94 2.20 54.55 1.70 77.14 16.15 0.93 0.21 1.31

0.00 0.00 2.10 52.38 1.56 74.08 1.95 48.72 1.34 68.90

0.00 0.00 1.10 9.09 0.14 12.86 1.55 35.48 0.78 50.18

0.28 23.57 1.05 4.76 0.07 6.73 1.00 0.00 0.00 0.00

0.07 7.44 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00

0.00 0.00 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00

0.14 12.86 3.85 32.47 1.77 45.92 1.35 25.93 0.49 36.66

0.00 0.00 1.00 0.00 0.00 0.00 1.10 9.09 0.14 12.86

0.00 0.00 1.00 0.00 0.00 0.00 1.15 13.04 0.21 18.45

0.00 0.00 1.00 0.00 0.00 0.00 1.05 4.76 0.07 6.73

0.00 0.00 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00

0.21 8.32 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00

0.00 0.00 1.00 0.00 0.00 0.00 1.40 28.57 0.57 40.41

0.28 21.76 7.10 26.76 2.69 37.85 2.00 50.00 1.41 70.71

0.00 0.00 1.00 0.00 0.00 0.00 1.40 28.57 0.57 40.41

0.00 0.00 1.15 13.04 0.21 18.45 2.10 52.38 1.56 74.08

0.00 0.00 1.40 28.57 0.57 40.41 1.35 25.93 0.49 36.66

Std Dev % StdDev Ave % Diff Std Dev % StdDev Ave % Diff Std Dev % Std Dev

TCE TCE c-DCE c-DCE c-DCE c-DCE VC VC VC VC

(μg/L) (μg/L) (μg/L) (μg/L) (μg/L)
206

ML-31-0 D ec-98 NA NA NA NA NA NA NA NA

ML-31-2 NA NA NA NA NA NA NA NA

ML-31-4 NA NA NA 188 NDNDNA NA

ML-31-6 NA NA NA 411 51 50 NA NA

ML-31-8 NA NA NA 107 26 21 NA NA

ML-31-10 NA NA NA 4.7 4.6 NDNA NA

ML-32-0 63.1 12.4 BLQ 91 15 ND77.05 -18.11

ML-32-2 4.5 NDND5.2 NDND4.84 -7.44

ML-32-4 563 13.4 5.8 555 12 ND558.95 0.71

ML-32-6 98.0 35.2 23.3 110 38 ND104.01 -5.76

ML-32-8 1.3 6.0 20.2 1.1 8.9 ND1.20 8.49

ML-32-10 1.2 NDND1.1 NDND1.16 5.01

ML-33-0 NDNDBLQ NDNDND1.00 0.00

ML-33-2 11.8 4.3 14.2 11 5.7 ND11.38 3.31

ML-33-4 ND7.6 18.3 BLQ NDND1.00 0.00

ML-33-6 ND1.5 13.0 BLQ NDND1.00 0.00

ML-33-8 NDND2.2 BLQ NDND1.00 0.00

ML-33-10 NDBLQ BLQ BLQ ND ND1.00 0.00

ML-34-0 NDND2.1 NDNDND1.00 0.00

ML-34-2 1.9 4.7 BLQ 1.9 3.8 ND1.92 0.78

ML-34-4 NDND3.3 NDNDND1.00 0.00

ML-34-6 NDND3.7 NDNDND1.00 0.00

ML-34-8 NDND2.6 BLQ NDND1.00 0.00

ML-34-10 NDND1.6 NDNDND1.00 0.00

ML-35-0 1.1 ND1.3 1 NDND1.05 4.49

ML-35-2 NDND4.0 NDNA ND1.00 0.00

ML-35-4 ND2.1 3.3 NDNDND1.00 0.00

ML-35-6 ND1.1 2.3 NDNDND1.00 0.00

ML-35-8 ND1.6 3.0 BLQ NDND1.00 0.00

ML-35-10 ND2.6 1.3 BLQ NDND1.00 0.00

BLQ Below limit of quantitation (1 ppb)

NDNone detected

NA Not available

Average 6.71

Sample Session Ave % Diff

TCE c-DCE VC TCE c-DCE VC TCE TCE

 (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L) (μg/L)

EPA Analyzed UW Analyzed
207

NA NA NA NA NA NA NA NA NA NA

NA NA NA NA NA NA NA NA NA NA

NA NA NA NA NA NA NA NA NA NA

NA NA NA NA NA NA NA NA NA NA

NA NA NA NA NA NA NA NA NA NA

NA NA NA NA NA NA NA NA NA NA

19.73 25.60 13.68 -9.69 1.87 13.70 1.00 0.00 0.00 0.00

0.51 10.52 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00

5.59 1.00 12.72 5.64 1.01 7.98 3.38 70.40 3.36 99.56

8.47 8.14 36.60 -3.82 1.98 5.41 12.16 91.78 15.79 129.80

0.14 12.00 7.43 -19.85 2.08 28.07 10.62 90.58 13.60 128.10

0.08 7.08 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00

0.00 0.00 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00

0.53 4.67 4.98 -14.50 1.02 20.51 7.60 86.84 9.33 122.81

0.00 0.00 4.30 76.76 4.67 108.56 9.66 89.65 12.24 126.78

0.00 0.00 1.23 19.00 0.33 26.86 7.00 85.71 8.49 121.22

0.00 0.00 1.00 0.00 0.00 0.00 1.60 37.50 0.85 53.03

0.00 0.00 1.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00

0.00 0.00 1.00 0.00 0.00 0.00 1.54 34.98 0.76 49.47

0.02 1.11 4.27 10.90 0.66 15.42 1.00 0.00 0.00 0.00

0.00 0.00 1.00 0.00 0.00 0.00 2.15 53.41 1.62 75.54

0.00 0.00 1.00 0.00 0.00 0.00 2.35 57.47 1.91 81.28

0.00 0.00 1.00 0.00 0.00 0.00 1.81 44.64 1.14 63.14

0.00 0.00 1.00 0.00 0.00 0.00 1.30 22.78 0.42 32.22

0.07 6.35 1.00 0.00 0.00 0.00 1.14 12.59 0.20 17.80

0.00 0.00 NA NA NA NA 2.52 60.33 2.15 85.31

0.00 0.00 1.55 35.55 0.78 50.27 2.15 53.53 1.63 75.71

0.00 0.00 1.05 4.40 0.07 6.22 1.66 39.69 0.93 56.13

0.00 0.00 1.32 24.18 0.45 34.20 2.02 50.61 1.45 71.57

0.00 0.00 1.79 43.99 1.11 62.22 1.14 12.17 0.20 17.20

9.49 19.03 26.91 23.60 33.37

Ave = Average

% Diff = % Difference = (Concentration - Ave) / Ave*100

Std Dev = Standard Deviation

% StdDev = Std Dev / Ave*100

Set ND and BLQ = 1 ppb for statistics

Take absolute value of % Diff for Ave calculation

Std Dev % StdDev Ave % Diff Std Dev % StdDev Ave % Diff Std Dev % Std Dev

TCE TCE c-DCE c-DCE c-DCE c-DCE VC VC VC VC

(μg/L) (μg/L) (μg/L) (μg/L) (μg/L)