# Lead Human Exposure and Health Risk Assessments and Ecological Risk Assessment for Selected Areas

Pilot Phase

EXTERNAL REVIEW DRAFT APPENDICES

December 2006

Prepared for:

Office of Air Quality Planning and Standards U.S. Environmental Protection Agency Research Triangle Park, NC

Prepared by:

ICF International Research Triangle Park, NC

Work Funded Through:

Contract 68-D01-052, Work Assignment IV-5; and Contract EP-D-06-115, Wo rk Assignment 0-4

Zachary Pekar, Work Assignment Manager Nancy Riley, Project Officer

## ICF International 

## i DRAFT – December 2006 

# DISCLAIMER

This report is being furnished to the U.S. Environmental Protection Agency (EPA) by ICF International in partial fulf illment of Contract No. EP-D-06-115, Work Assignment No. 0-4. Any opinions, findings, conclusions , or recommendations are thos e of the authors and do not necessarily reflect the views of the EPA or ICF In ternational. This document is being circulated

to obtain review and comment from the Clean Air Scientific Advisory Committee (CASAC) and the general public. Comments on this document s hould be addressed to Zachary Pekar, U.S. Environmental Protection Agency, Office of Air Quality Planning and Standards, C504-06, Research Triangle Park, North Caro lina 27711 (email: pekar.zachary@epa.gov).

## ICF International 

## ii DRAFT – December 2006 

# TABLE OF CONTENTS 1

2 Appendix A - Measurement Data Summaries for the 3 Primary and Secondary Pb Smelters................................................................................... A-1 4

5 Appendix B - Emissions and Modeling Parame ters for the Primary Pb Smelter ....................... B-1 6

7 Appendix C - Emissions and Modeling Parame ters for the Secondary Pb Smelter ................... C-1 8

9 Appendix D - Supplemental Information for the Near Roadway Urban Case Study................. D-1 10 D.1 Demographic Data .......................................................................................................... D -2 11 D.2 Air Monitoring Data ....................................................................................................... D -2 12
D.3 Soil Measurements.......................................................................................................... D-4 13
D.4 Modeled Indoor Dust Concentrations............................................................................. D-8 14

15 Appendix E - Summary Data for the Ecol ogically Vulnerable Case Study ............................... E-1 16 E.1 Air Deposition Inputs...................................................................................................... E-2 17
E.2 Soil ....................................................................................................................... ........... E-2 18
E.3 Surface Water.............................................................................................................. .... E-5 19

20 Appendix F - Primary Pb Smelter Case Study Media Concentrations ........................................F-1 21 F.1 Primary Lead Smelter Modeled Pb Concentrations for Use in the Human 22 Exposure and Health Risk Assessments .......................................................................F-2 23 F.2 Primary Pb Smelter Measured Pb Con centrations for Use in the Ecological 24

Risk Assessment .........................................................................................................F-7 4 25 F.3 Statistical Modeling for Estimating Pb Concentrations in House Dust for the 26 Primary Pb Smelte r.....................................................................................................F-81 27 F.3.1 Purpose.................................................................................................................. ...F-81 28
F.3.2 Overview of Methods ..............................................................................................F-81 29

F.3.3 Data Sources ............................................................................................................F -81 30 F.3.4 Data Manipulation ...................................................................................................F-88 31 F.3.4.1 Data Set Based on Spatial-Temporal "Windows" ..........................................F-88 32 F.3.4.2 Data Set Based on House Dust Sampling Locations ......................................F-89 33 F.3.5 Results of the Statistical Analysis............................................................................F-89 34 F.3.5.1 Exploratory Analysis ......................................................................................F-89 35 F.3.5.2 Regression Modeling ......................................................................................F-91 36 F.3.5.3 Comparison of Predicted to Observed Dust Pb Concentrations at 37 Primary Pb Smelter......................................................................................F-93 38 F.3.6 Primary Pb Smelter: Selection of the House Dust Modeling Approach..................F-95 39

40 Appendix G - Secondary Pb Smelter Ca se Study Media Concentrations .................................. G-1 41

42 Appendix H - Data Supporting National- Scale Surface Water Ecological Risk 43 Screening Assessment......................................................................................................... H-1 44 H.1 Instructions for Downloading Data from the NAWQA Database.................................. H-2 45
H.2 Dissolved Pb Measurements........................................................................................... H-5 46

## ICF International 

## iii DRAFT – December 2006 

## H.3 Characteristics of Sampling Locations where Dissolved Pb Concentrations 1

Exceed EPA Ambient Water Quality Criteria for the Protection of Aquatic 2
Life and Their Uses.................................................................................................... H-17 3

4 Appendix I - Input Parameter Values Used in the Blood Pb Modeling........................................I-1 5
I.1 IEUBK Model................................................................................................................ ...I-2 6 I.2 Leggett Model.............................................................................................................. .....I-6 7
8 Appendix J - Detailed Human Health Risk Results..................................................................... J-1 9

10 Appendix K - Adaptation of the Lanphear et al. (1998) Model for Estimating 11
Blood Pb Levels in the Pilot Phase Assessment ................................................................. K-1 12 K.1 Development of a House Dust Pb Concentration - Dust Lead Loading 13 Regression Model ........................................................................................................ K-2 14 K.2 Estimation of Equivalent House Dust Pb Concentrations and a Bivariate 15

Blood Pb Model ........................................................................................................... K- 3 16

17 Appendix L - Development of Pb Soil Screening Values .......................................................... L-1 18 L.1 Purpose.................................................................................................................... ........ L-2 19 L.2 Superfund Eco-SSLs....................................................................................................... L- 3 20
L.2.1 Overview of Eco-SSLs ............................................................................................. L-3 21
L.2.2 Derivation of Eco-SSLs fo r Birds and Mammals..................................................... L-3 22 L.3 Utility of the Pb Eco-SSLs for the Nationwide Pb NAAQS Review ............................. L-6 23 L.4 Development of SSVs for Use in the Pb NAAQS Review............................................. L-7 24 L.4.1 Evaluation of Eco-SSL Equation Parame ter Values for Applicability to the 25 Pb NAAQS Review .............................................................................................. L-7 26 L.4.1.1 Food Ingestion Rate ......................................................................................... L-8 27 L.4.1.2 Soil Ingestion Rate......................................................................................... L-10 28 L.4.1.3 Diet Composition........................................................................................... L-11 29
L.4.1.4 Earthworm Accumulation of Pb from Soils................................................... L-12 30 L.4.1.5 Arthropod Accumulation of Pb from Soils.................................................... L-13 31 L.4.1.6 Bioavailability of Pb in Soil and in Diet........................................................ L-14 32 L.4.1.7 Toxicity Reference Value (TRC)................................................................... L-16 33 L.4.2 Calculation of SSVs for Pb for Use in the Pb NAAQS Review............................. L-16 34

35 Appendix M - Sediment Screening Levels ................................................................................ M-1 36 M.1 Canadian Sediment Quality Guidelines......................................................................... M-2 37 M.2 Consensus Approach...................................................................................................... M-2 38

39

40

41

42

43

44

45

## ICF International 

## iv DRAFT – December 2006 

# LIST OF EXHIBITS 1

2

Exhibit Page 3

4 A-1 Air Monitoring Locations Around the Primary Pb Smelter............................................ A-2 5

6 A-2 High-Volume Air Monitoring Results for Pb - Primary Pb Smelter .............................. A-3 7
8 A-3 Average Annual Pb Concentrations from AirData Monitors Located 9 Around the Primary Pb Smelter........................................................................ A-12 10

11 A-4 Pre-Excavation Soil Sampling Results for Pb - Primary Pb Smelter............................ A-13 12

13 A-5 Post-Excavation Soil Sampling Results for Pb - Primary Pb Smelter.......................... A-31 14

15 A-6 Recontamination Soil Sampling Results for Pb - Primary Pb Smelter......................... A-37 16

17 A-7 Average Soil Pre-Excavation, Post-Excav ation, and Recontamination Pb Results 18
for 31 Residential Locations within On e Mile of the Primary Pb Smelter....... A-46 19

20 A-8 Indoor Dust/Wipe Sample Results for Pb - Primary Pb Smelter.................................. A-47 21

22 A-9 Soil and Air Deposition Monitoring Locati ons Around the Primary Pb Smelter......... A-50 23

24 A-10 Soil Deposition Monitoring Results for Pb - Primary Pb Smelter................................ A-51 25

26 A-11 Air Deposition Monitoring Results for Pb - Primary Pb Smelter................................. A-55 27

28 A-12 Air Monitoring Locations Around the Secondary Pb Smelter...................................... A-58 29

30 A-13 Average Annual Pb Concentrations from AirData Monitors Located 31 Around the Secondary Pb Smelter.................................................................... A-59 32

33

B-1 Emission Release Parameters and Annual Average Emission 34
Rates for Point Sources. .................................................................................... .B-2 35

36

B-2 Emission Release Parameters and Annual Average Emission 37
Rates for Volume Sources .................................................................................. B-3 38

39
B-3 Emission Release Parameters and Annual Average Emission 40
Rates for Area Sources ....................................................................................... B-4 41

42
B-4 Particle Size Distribution Inputs for Point Sources ........................................................ B-6 43

44
B-5 Particle Size Distribution Inputs for Volume Sources.................................................... B-8 45

46

## ICF International 

## v DRAFT – December 2006 

## B-6 Particle Size Distributio n Inputs for Area Sources....................................................... B-10 1

2 C-1 Secondary Pb Smelter Emission Release Parameters and Annual 3 Average Emission Rates ..................................................................................... C-2 4

5 C-2 Secondary Pb Smelter Partic le Size Distribution Inputs................................................. C-3 6

7 D-1 Demographic Information for Roadside Scenario .......................................................... D-2 8

9 D-2 Air Monitoring Data for Pb, DR I Site in Houston, Texas .............................................. D-3 10

11 D-3 AQS Ambient Pb Measurements for Houston................................................................ D-3 12

13 D-4 Average Measured PM 10 

## Pb Concentrations for DRI Monitoring 14 Locations (Other than Houston).......................................................................... D-3 15

16 D-5 Average Annual PM 10 

## Across the United States for 2005 Compared to 17

PM 10 

## at the Houston DRI Site............................................................................. D-4 18

19 D-6 Selected Data - Pb in Surface Soil Near Roadways and Related 20
Urban Measurements .......................................................................................... D-5 21

22 D-7 Near Roadway Urban Case Study: M odeled Indoor Dust Concentrations.................... D-8 23

24
E-1 Pb Concentration in Forest Fl oor Samples Analyzed for Hubbard 25 Brook Experimental Forest............................................................................................. E-4 26

27 F-1 Primary Pb Smelter: Ratios of Exposure Concentrations to Ambient 28
Air Concentrations fr om NATA for Study Area .................................................F-3 29

30 F-2 Primary Pb Smelter: Current Condit ions Scenario Media Concentrations.....................F-4 31

32 F-3 Primary Pb Smelter: Current NAAQS Scenario Media Concentrations ......................F-36 33

34 F-4 Primary Pb Smelter Air Concentration Modeled Results 35 Compared to Monitor Values.............................................................................F-72 36

37 F-5 Primary Pb Smelter Deposition Modeled Results 38 Compared to Measured Values..........................................................................F-73 39

40 F-6 Soil Sample Clusters Used to Estimate Ecological Receptor Exposure via 41 Soil and Corresponding Pb Analysis Results (ELM 2005) ...............................F-75 42

43
F-7 Joachim Creek Measured Surface Water Dissolved Pb Concentration 44 Data for Primary Pb Smelter Case Study (ELM 2005)......................................F-76 45

## ICF International 

## vi DRAFT – December 2006 

## 1 F-8 Mississippi River Measured Dissolv ed Pb Surface Water Concentration 2 Data for Primary Pb Smelter Case Study (ELM 2005)......................................F-77 3

4 F-9 Other Surface Water, Drainage Areas and U-Shaped Pond, Measured 5 Surface Water Dissolved Pb Concentration Data for Primary Pb 6 Smelter Case Study (ELM 2005).......................................................................F-77 7
8
F-10 Joachim Creek Measured Sediment Pb Concentration Data for 9 Primary Pb Smelter Case Study (ELM 2005)....................................................F-78 10

11 F-11 Mississippi River Measured Se diment Pb Concentration Data 12 for Primary Pb Smelter Case Study (ELM 2005) ..............................................F-79 13

14 F-12 Other Surface Water, Drainage Areas and U-Shaped Pond, Measured Sediment Pb 15 Concentration Data for Primary Pb Smelter Case Study (ELM 2005)..........................F-80 16

17 F-13 Primary Pb Smelter: Summary of Pb Concentrations in Residential Soil and 18
House and Road Dust.........................................................................................F-82 19

20 F-14 Primary Pb Smelter: Modeled Indoor Dust Concentrations .........................................F-83 21

22 F-15 Primary Pb Smelter: Relationship Betw een House Dust Pb Concentrations and 23
Distance from Main Stack .................................................................................F-90 24

25 F-16 Primary Pb Smelter: Relationship Be tween Road Dust Pb Concentrations and 26 Nearby House Pb Dust Concentrations..............................................................F-91 27

28 F-17 Indoor Dust Regression Models Tested and Summary of Regression Analysis 29
Results for the “Windows” Data Set..................................................................F-92 30

31 F-18 Summary of Regression Analysis Results for the “House” Data Set ............................F-93 32

33 F-19 Comparison of Three Best “Windows” Models with EPA AGG (Air+Soil) 34
Model and “Windows” Data..............................................................................F-94 35

36 F-20 Comparison of Best-Fitting “House” M odels with the EPA AGG (Air+Soil) 37
Model and the “Windows” House Dust Data ....................................................F-95 38

39
F-21 Ratio of House Dust Concentrations Predicted by the H6 and AGG (Air+Soil) 40
Models versus Distance from the Ma in Stack for the Primary Pb Smelter 41 Case Study Census Block Centroids..................................................................F-96 42

43 G-1 Secondary Pb Smelter: Ratios of Expo sure Concentrations to Ambient Air 44 Concentrations from NATA for Study Area....................................................... G-2 45

46

## ICF International 

## vii DRAFT – December 2006 

## G-2 Secondary Pb Smelter: Current Condi tions Scenario Media Concentrations................. G-3 1

2 G-3 Secondary Pb Smelter: Modele d Indoor Dust Concentrations .................................... G-17 3

4 G-4 Input Parameters for Secondary Pb Smelting Facility Soil Calculations ..................... G-23 5

6 H-1 USGS NAWQA Study Units and Sampling Stations for which 7
Dissolved Pb was Measured ............................................................................... H-3 8

9 H-2 Dissolved Pb Measurements Exceeding 1.2 μg/L at NAWQA Sampling 10 Stations Between 1994 and 2004 for First 25 Study Units 11 (1.2 μg/L = CCC at a Water Hardness of 50 mg/L as CaCO 3 

## )........................... H-6 12

13 H-3 Dissolved Pb Measurements Exceeding the CCC at NAWQA Sampling 14 Stations with Soft Water (Hardness < 50 mg/L as CaCO 3 

## ) 15 Between 1994 and 2004 for First 25 Study Units............................................. H-10 16

17 H-4 Dissolved Pb Measurements Exceeding 1.2 μg/L at NAWQA Sampling 18 Stations Between 1994 and 2004 for Remaining Study Units 19 (1.2 μg/L = CCC at a Water Ha rdness of 50 mg/L as CaCO 3 

## )......................... H-12 20

21
H-5 Dissolved Pb Measurements Exceeding CCC at NAWQA Sampling 22
Stations with Soft Water (hardness < 50 mg/L as CaCO 3 

## ) between 23 1994 and 2004 for Remaining Study Units....................................................... H-16 24

25
H-6 Station 7050500 in Arkansas ........................................................................................ H-18 26

27
H-7 Station 7018100 in Missouri......................................................................................... H-19 28

29
H-8 Station 8331000 in New Mexico .................................................................................. H-20 30

31
H-9 Station 1112900 in Rhode Island.................................................................................. H-21 32

33 H-10 Station 12422500 in Washington State......................................................................... H-23 34

35
H-11 Station 600715152572800 in Alaska............................................................................ H-25 36

37
H-12 Station 16212700 in Hawaii.......................................................................................... H-26 38

39 H-13 Station 12422000 in Washington.................................................................................. H-27 40

41
H-14 Station 12419000 in Idaho............................................................................................ H-28 42

43
H-15 Station 12392155 in Idaho............................................................................................ H-30 44

45
H-16 Station 1127000 in Connecticut.................................................................................... H-32 46

## ICF International 

## viii DRAFT – December 2006 

## 1
H-17 Station 1124000 in Connecticut.................................................................................... H-34 2

3
H-18 Station 1119375 in Connecticut.................................................................................... H-36 4

5
H-19 Station 385240106583600 in Colorado ........................................................................ H-38 6

7
H-20 Station 404847111240501 in Utah ............................................................................... H-39 8

9 I-1 Input Parameter Values for the IEUBK Model.................................................................I-2 10

11 I-2 Example Leggett Model Exposure Parame ters and Intake/Uptake Factors......................I-6 12

13 J-1 Summary of Projecte d Blood Pb Distributions, IQ Distributions, and 14 Exposure Pathway Contributions to Total Pb Uptake for the 15 Primary Pb Smelter Case Study, Current Conditions Scenario ........................... J-2 16

17 J-2 Summary of Projec ted Blood Pb Distributions, IQ Distributions, 18 and Exposure Pathway Contributions to Total Pb Uptake for the Primary 19 Pb Smelter Case Study, Current NAAQS Compliance Scenario ........................ J-4 20

21 J-3 Summary of Projecte d Blood Pb Distributions, IQ Distributions, and 22 Exposure Pathway Contributions to Total Pb Uptake for the Secondary 23 Pb Smelter Case Study, MPE (Modeled) Soil Concentrations............................ J-6 24

25 J-4 Summary of Projecte d Blood Pb Distributions, IQ Distributions, and 26 Exposure Pathway Contributions to Total Pb Uptake for the Secondary 27 Pb Smelter Case Study, Hybrid Soil Concentrations........................................... J-8 28

29 J-5 Summary of Projec ted Blood Pb Distributions, IQ Distributions, and 30 Exposure Pathway Contributions to Total Pb Uptake for the Near 31 Roadway Urban Case Study .............................................................................. J-10 32

33 K-1 Regression Analysis of HUD National Survey House Dust Pb Concentration 34 Data and Dust Pb Loading Data.......................................................................... K-3 35

36
K-2 Predicted Blood Pb Levels Associated with Combinations of Dust Pb Loading, 37 House Dust Pb Concentrations, and Soil Dust Pb Concentrations 38 (Adapted from Lanphear et al. 1998, Table 4).................................................... K-4 39

40
L-1 Parameter Values used in the Ca lculation of Avian Eco-SSLs for Pb 41 (USEPA 2005b) .................................................................................................. L-5 42

43
L-2 Parameter Values used in Calcula tion of the Mammalian Eco-SSLs for Pb 44 (USEPA 2005b) .................................................................................................. L-6 45

46

## ICF International 

## ix DRAFT – December 2006 

## L-3 Distribution of Soil Pb Concentratio ns across the Conterminous United States 1 (Shacklette and Boerngen 1984)......................................................................... L-7 2

3 L-4 Estimated Arthropod Pb Concentrations as a Percentage of Estimated Earthworm 4 Pb Concentrations (mg/kg dry wei ght) for Same Soil Concentrations............. L-13 5

6 L-5 Development of the Woodcock SSV for Lead ............................................................. L-17 7

# Appendix A

Measurement Data Summaries for the

Primary and Secondary Pb Smelters

## Appendix A



## 1

2

3

4

5

6

7
8

9

10

11

12

13

14

15 Appendix A presents detailed summaries of the m easurement data available for the primary and secondary Pb smelters. For selected media, sampling location figures are also provided. Additional discussion regarding this measurement data is provided in Chapter 3 of the report.

EPA high-volume and AQS/AirData air monitoring locations around the primary Pb smelter are shown in Exhibit A-1. Air monitoring data for th ese locations are presented in Exhibits A-2 and A-3. Exhibits A-4 through A-7 provide soil da ta results (pre-excavat ion, post-excavation and recontamination sampling) associated with loca tions around the primary Pb smelter. Indoor dust

measurement data collected to a ssess Pb recontamination in sel ect residential areas around the primary Pb smelter are provided in Exhibit A- 8. Soil and air deposition monitoring locations around the primary Pb smelter are shown in Exhibit A-9. Soil and air deposition monitoring results for these locations are presented in Exhibits A-10 and A-11, respectively.

AQS/AirData air monitoring locations around the s econdary Pb smelter are shown in Exhibit A12. Air monitoring data for these locati ons are presented in Exhibit A-13.

ICF International A-1 DRAFT – December 2006

## Appendix A



## Exhibit A-1. Air Monitoring Lo cations Around the Primary Pb Smelter

ICF International A-2 DRAFT – December 2006

### Appendix A

2001 2002

Date Date Date

100 -- -- 3-Jan-02 0.5 1-Jan-03 0.316

100 -- -- 7-Jan-02 0.52 4-Jan-03 1.26

100 -- -- 10-Jan-02 0.51 7-Jan-03 0.547

100 -- -- 13-Jan-02 4.5 10-Jan-03 0.291

100 -- -- 16-Jan-02 0.97 13-Jan-03 1.03

100 -- -- 19-Jan-02 2.2 16-Jan-03 1.09

100 -- -- 22-Jan-02 2.4 19-Jan-03 0.531

100 -- -- 25-Jan-02 0.75 22-Jan-03 0.095

100 -- -- 28-Jan-02 2 25-Jan-03 0.811

100 -- -- 5-Feb-02 1.5 28-Jan-03 2.28

100 -- -- 8-Feb-02 0.97 31-Jan-03 0.118

100 -- -- 11-Feb-02 0.59 3-Feb-03 0.15

100 -- -- 14-Feb-02 0.33 9-Feb-03 1.29

100 -- -- 18-Feb-02 2.3 12-Feb-03 0.901

100 -- -- 21-Feb-02 0.24 15-Feb-03 0.514

100 -- -- 26-Feb-02 0.23 ND 18-Feb-03 0.406

100 -- -- 1-Mar-02 3.8 21-Feb-03 0.527

100 -- -- 4-Mar-02 0.57 24-Feb-03 0.119

100 -- -- 7-Mar-02 1.7 27-Feb-03 0.05 ND

100 -- -- 11-Mar-02 2.3 2-Mar-03 0.095

100 -- -- 14-Mar-02 1.3 5-Mar-03 0.138

100 -- -- 17-Mar-02 0.78 8-Mar-03 1.63

100 -- -- 20-Mar-02 0.24 ND 11-Mar-03 1.99

100 -- -- 23-Mar-02 0.25 ND 14-Mar-03 1.53

100 -- -- 26-Mar-02 0.41 17-Mar-03 2.86

100 -- -- 29-Mar-02 0.76 20-Mar-03 2.07 100 -- -- 1-Apr-02 0.93 23-Mar-03 0.352 100 -- -- 4-Apr-02 0.24 ND 26-Mar-03 0.58 100 -- -- 7-Apr-02 0.61 29-Mar-03 0.05 ND 100 -- -- 10-Apr-02 4.9 1-Apr-03 0.399 100 -- -- 16-Apr-02 2 4-Apr-03 0.397 100 -- -- 18-Apr-02 3 7-Apr-03 0.238 100 -- -- 22-Apr-02 0.41 10-Apr-03 0.19 100 -- -- 25-Apr-02 0.23 ND 13-Apr-03 1.95 100 -- -- 28-Apr-02 0.25 ND 16-Apr-03 0.376 100 -- -- 1-May-02 2.2 19-Apr-03 5.48 100 -- -- 4-May-02 0.55 22-Apr-03 0.357 100 -- -- 7-May-02 2 25-Apr-03 0.092 100 -- -- 10-May-02 3.58 28-Apr-03 3.37 100 -- -- 13-May-02 0.144 1-May-03 0.309 100 -- -- 16-May-02 0.932 4-May-03 0.715 100 -- -- 19-May-02 0.091 7-May-03 0.59 100 -- -- 22-May-02 2.33 10-May-03 0.437 100 -- -- 25-May-02 0.193 13-May-03 1.4 100 -- -- 29-May-02 1.59 16-May-03 2.08 100 -- -- 31-May-02 0.397 19-May-03 0.493 100 -- -- 3-Jun-02 0.32 22-May-03 0.108 100 -- -- 6-Jun-02 0.359 25-May-03 0.505 100 -- -- 9-Jun-02 0.326 28-May-03 0.242 100 -- -- 12-Jun-02 0.716 31-May-03 0.165

100 -- -- 15-Jun-02 0.141 3-Jun-03 0.21

100 -- -- 18-Jun-02 1.1 6-Jun-03 0.603 

## Exhibit A-2. High-Volume Air Monitoring Results for Pb - Primary

Pb Smelter a

Pilot Analysis

ID Sampling Dates and Results ( μ g/m 3 ) b,c

2003



### ICF International A-3 DRAFT – December 2006

### Appendix A

2001 2002

Date Date Date 

## Exhibit A-2. High-Volume Air Monitoring Results for Pb - Primary

Pb Smelter a

Pilot Analysis

ID Sampling Dates and Results ( μ g/m 3 ) b,c

2003

100 -- -- 21-Jun-02 1.49 9-Jun-03 0.121

100 -- -- 24-Jun-02 2.17 12-Jun-03 0.627

100 -- -- 27-Jun-02 0.24 15-Jun-03 0.063

100 -- -- 30-Jun-02 0.091 18-Jun-03 1.51

100 -- -- 3-Jul-02 0.861 21-Jun-03 0.216

100 -- -- 6-Jul-02 1.68 24-Jun-03 0.433

100 -- -- 9-Jul-02 0.439 27-Jun-03 0.184

100 -- -- 12-Jul-02 2.92 30-Jun-03 0.803

100 -- -- 15-Jul-02 1.04 6-Jul-03 0.06

100 -- -- 18-Jul-02 1.09 -- --

100 -- -- 22-Jul-02 0.771 -- --

100 -- -- 29-Jul-02 0.553 -- -- 100 -- -- 4-Aug-02 0.225 -- -- 100 -- -- 7-Aug-02 0.511 -- -- 100 -- -- 10-Aug-02 1.28 -- -- 100 -- -- 13-Aug-02 0.181 -- -- 100 -- -- 16-Aug-02 0.994 -- -- 100 -- -- 19-Aug-02 1.27 -- -- 100 -- -- 22-Aug-02 0.547 -- -- 100 -- -- 25-Aug-02 0.064 -- -- 100 -- -- 28-Aug-02 0.204 -- -- 100 -- -- 31-Aug-02 0.465 -- -- 100 -- -- 3-Sep-02 0.439 -- -- 100 -- -- 6-Sep-02 4.11 -- -- 100 -- -- 9-Sep-02 1.19 -- -- 100 -- -- 12-Sep-02 0.473 -- -- 100 -- -- 15-Sep-02 0.088 -- -- 100 -- -- 18-Sep-02 0.739 -- -- 100 -- -- 21-Sep-02 0.107 -- -- 100 -- -- 24-Sep-02 0.223 -- -- 100 -- -- 27-Sep-02 0.183 -- -- 100 -- -- 30-Sep-02 0.395 -- --

100 -- -- 3-Oct-02 1.57 -- --

100 -- -- 6-Oct-02 0.21 -- --

100 -- -- 9-Oct-02 0.983 -- --

100 13-Oct-01 0.41 12-Oct-02 0.498 -- --

100 16-Oct-01 0.24 15-Oct-02 0.256 -- --

100 18-Oct-01 1.7 18-Oct-02 0.457 -- --

100 23-Oct-01 0.32 21-Oct-02 4.63 -- --

100 26-Oct-01 0.24 ND 24-Oct-02 1.89 -- --

100 29-Oct-01 5 27-Oct-02 1.26 -- --

100 1-Nov-01 1.4 30-Oct-02 0.359 -- --

100 4-Nov-01 0.69 2-Nov-02 0.053 -- --

100 8-Nov-01 0.71 5-Nov-02 0.506 -- --

100 11-Nov-01 3.9 8-Nov-02 0.319 -- --

100 14-Nov-01 2.8 11-Nov-02 0.129 -- --

100 16-Nov-01 1 14-Nov-02 0.627

-- -- 100 19-Nov-01 0.45 17-Nov-02 0.485 -- --

100 22-Nov-01 1.1 20-Nov-02 0.765 -- --

100 26-Nov-01 2 23-Nov-02 0.498 -- --

100 28-Nov-01 0.24 ND 26-Nov-02 0.818 -- --

100 1-Dec-01 0.66 29-Nov-02 0.518 -- --



### ICF International A-4 DRAFT – December 2006

### Appendix A

2001 2002

Date Date Date 

## Exhibit A-2. High-Volume Air Monitoring Results for Pb - Primary

Pb Smelter a

Pilot Analysis

ID Sampling Dates and Results ( μ g/m 3 ) b,c

2003

100 4-Dec-01 4.6 2-Dec-02 0.954 -- --

100 7-Dec-01 2.5 5-Dec-02 0.057 -- --

100 10-Dec-01 2.5 8-Dec-02 0.112 -- --

100 13-Dec-01 0.25 ND 11-Dec-02 2.57 -- --

100 17-Dec-01 0.31 14-Dec-02 0.264 -- --

100 19-Dec-01 0.23 ND 17-Dec-02 1.89 -- --

100 22-Dec-01 0.24 ND 20-Dec-02 0.382 -- --

100 26-Dec-01 0.27 23-Dec-02 0.895 -- --

100 28-Dec-01 1.3 26-Dec-02 0.086 -- --

100 31-Dec-01 0.27 29-Dec-02 1.72 -- --

100 Summary: 2001 2002 2003

101 -- -- 3-Jan-02 0.25 ND -- --

101 -- -- 7-Jan-02 0.25 ND -- --

101 -- -- 10-Jan-02 0.3 -- --

101 -- -- 13-Jan-02 17 -- --

101 -- -- 16-Jan-02 0.35 -- --

101 -- -- 19-Jan-02 0.6 -- --

101 -- -- 22-Jan-02 0.55 -- --

101 -- -- 25-Jan-02 0.24 ND -- --

101 -- -- 28-Jan-02 0.34 -- --

101 -- -- 31-Jan-02 0.24 ND -- --

101 -- -- 5-Feb-02 0.52 -- --

101 -- -- 8-Feb-02 0.3 -- --

101 -- -- 11-Feb-02 0.23 ND -- --

101 -- -- 14-Feb-02 0.27 -- --

101 -- -- 18-Feb-02 0.6 -- --

101 -- -- 21-Feb-02 0.24 ND -- --

101 -- -- 26-Feb-02 0.24 ND -- --

101 -- -- 1-Mar-02 0.65 -- --

101 -- -- 7-Mar-02 1.6 -- --

101 -- -- 11-Mar-02 0.24 ND -- --

101 -- -- 14-Mar-02 1.2 -- --

101 -- -- 17-Mar-02 0.65 -- --

101 -- -- 20-Mar-02 0.46 -- --

101 -- -- 23-Mar-02 0.25 ND -- --

101 -- -- 26-Mar-02 0.24 ND -- --

101 -- -- 29-Mar-02 0.48 -- -- 101 -- -- 1-Apr-02 0.26 ND -- -- 101 -- -- 4-Apr-02 1.8 -- -- 101 -- -- 7-Apr-02 0.26 ND -- -- 101 -- -- 10-Apr-02 0.69 -- -- 101 -- -- 16-Apr-02 1.8 -- -- 101 -- -- 18-Apr-02 0.55 -- -- 101 -- -- 25-Apr-02 0.25 ND -- -- 101 -- -- 28-Apr-02 0.27 ND -- -- 101 -- -- 1-May-02 0.34 -- -- 101 -- -- 4-May-02 0.51 -- -- 101 -- -- 7-May-02 0.54 -- -- 101 -- -- 10-May-02 2.14 -- -- 101 -- -- 13-May-02 0.054 -- -- 101 -- -- 16-May-02 0.28 -- -- Max = 5 Avg = 1.3 Max = 4.9 Avg = 1 Max = 5.5 Avg = 0.79



### ICF International A-5 DRAFT – December 2006

### Appendix A

2001 2002

Date Date Date 

## Exhibit A-2. High-Volume Air Monitoring Results for Pb - Primary

Pb Smelter a

Pilot Analysis

ID Sampling Dates and Results ( μ g/m 3 ) b,c

2003

101 -- -- 19-May-02 0.062 -- -- 101 -- -- 22-May-02 0.921 -- -- 101 -- -- 25-May-02 0.123 -- -- 101 -- -- 29-May-02 0.562 -- -- 101 -- -- 31-May-02 0.099 -- --

101 -- -- 3-Jun-02 0.677 -- --

101 -- -- 6-Jun-02 0.962 -- --

101 -- -- 9-Jun-02 0.245 -- --

101 -- -- 12-Jun-02 0.085 -- --

101 -- -- 15-Jun-02 0.069 -- --

101 -- -- 18-Jun-02 0.261 -- --

101 -- -- 21-Jun-02 0.375 -- --

101 -- -- 24-Jun-02 0.935 -- --

101 -- -- 27-Jun-02 0.075 -- --

101 -- -- 30-Jun-02 0.05 ND -- --

101 -- -- 3-Jul-02 0.225 -- --

101 -- -- 6-Jul-02 1.11 -- --

101 -- -- 9-Jul-02 1.66 -- --

101 -- -- 12-Jul-02 3.58 -- --

101 -- -- 15-Jul-02 0.655 -- --

101 -- -- 18-Jul-02 0.131 -- --

101 -- -- 22-Jul-02 0.092 -- --

101 -- -- 26-Jul-02 1.36 -- --

101 -- -- 29-Jul-02 0.213 -- -- 101 -- -- 1-Aug-02 1.29 -- -- 101 -- -- 4-Aug-02 0.22 -- -- 101 -- -- 7-Aug-02 9.13 -- -- 101 -- -- 10-Aug-02 0.656 -- -- 101 -- -- 13-Aug-02 0.05 ND -- -- 101 -- -- 16-Aug-02 6.68 -- -- 101 -- -- 19-Aug-02 1.69 -- -- 101 -- -- 22-Aug-02 0.059 -- -- 101 -- -- 25-Aug-02 0.701 -- -- 101 -- -- 28-Aug-02 10 -- -- 101 -- -- 31-Aug-02 0.378 -- -- 101 -- -- 3-Sep-02 1.22 -- -- 101 -- -- 6-Sep-02 1.09 -- --

101 13-Oct-01 0.096 -- -- -- --

101 16-Oct-01 0.075 -- -- -- --

101 18-Oct-01 0.18 -- -- -- --

101 23-Oct-01 0.3 ND -- -- -- --

101 26-Oct-01 0.23 ND -- -- -- --

101 29-Oct-01 1.4 -- -- -- --

101 1-Nov-01 0.41 -- -- -- --

101 4-Nov-01 0.23 ND -- -- -- --

101 8-Nov-01 0.26 -- -- -- --

101 11-Nov-01 2.4 -- -- -- --

101 14-Nov-01 1.5 -- -- -- --

101 16-Nov-01 0.24 ND

-- -- -- -- 101 19-Nov-01 0.24 ND -- -- -- --

101 22-Nov-01 0.38 -- -- -- --

101 26-Nov-01 0.24 ND -- -- -- --



### ICF International A-6 DRAFT – December 2006

### Appendix A

2001 2002

Date Date Date 

## Exhibit A-2. High-Volume Air Monitoring Results for Pb - Primary

Pb Smelter a

Pilot Analysis

ID Sampling Dates and Results ( μ g/m 3 ) b,c

2003

101 28-Nov-01 1.7 -- -- -- --

101 1-Dec-01 0.62 -- -- -- --

101 4-Dec-01 0.25 ND -- -- -- --

101 7-Dec-01 1.7 -- -- -- --

101 10-Dec-01 1.4 -- -- -- --

101 13-Dec-01 0.3 -- -- -- --

101 17-Dec-01 0.24 ND -- -- -- --

101 19-Dec-01 0.23 ND -- -- -- --

101 22-Dec-01 0.23 ND -- -- -- --

101 26-Dec-01 0.22 ND -- -- -- --

101 28-Dec-01 0.23 ND -- -- -- --

101 31-Dec-01 0.24 ND -- -- -- --

101 Summary: 2001 2002 2003

102 -- -- 03-Jan-02 0.59 01-Jan-03 0.147

102 -- -- 07-Jan-02 0.65 04-Jan-03 0.326

102 -- -- 10-Jan-02 1.4 07-Jan-03 0.63

102 -- -- 13-Jan-02 15 10-Jan-03 0.257

102 -- -- 16-Jan-02 4.4 13-Jan-03 0.388

102 -- -- 19-Jan-02 0.24 ND 16-Jan-03 0.322

102 -- -- 22-Jan-02 25 19-Jan-03 0.986

102 -- -- 28-Jan-02 8.1 22-Jan-03 0.172

102 -- -- 31-Jan-02 0.39 25-Jan-03 0.684

102 -- -- 05-Feb-02 2.7 28-Jan-03 1.52

102 -- -- 08-Feb-02 5 31-Jan-03 2.33

102 -- -- 11-Feb-02 4.4 03-Feb-03 2.69

102 -- -- 14-Feb-02 14 06-Feb-03 0.342

102 -- -- 18-Feb-02 13 09-Feb-03 0.265

102 -- -- 21-Feb-02 0.38 12-Feb-03 0.46

102 -- -- 26-Feb-02 0.25 15-Feb-03 0.05 ND

102 -- -- 01-Mar-02 6.1 18-Feb-03 0.173

102 -- -- 04-Mar-02 4.4 21-Feb-03 0.281

102 -- -- 07-Mar-02 11 24-Feb-03 0.279

102 -- -- 14-Mar-02 17 27-Feb-03 0.056

102 -- -- 17-Mar-02 0.26 ND 02-Mar-03 0.181

102 -- -- 20-Mar-02 0.23 ND 05-Mar-03 0.363

102 -- -- 23-Mar-02 2.4 08-Mar-03 1.85

102 -- -- 26-Mar-02 0.45 11-Mar-03 3.25

102 -- -- 29-Mar-02 0.81 14-Mar-03 0.224 102 -- -- 01-Apr-02 13 17-Mar-03 1.25 102 -- -- 04-Apr-02 0.24 ND 20-Mar-03 0.349 102 -- -- 07-Apr-02 6.4 23-Mar-03 0.504 102 -- -- 10-Apr-02 0.86 26-Mar-03 0.476 102 -- -- 16-Apr-02 11 29-Mar-03 0.107 102 -- -- 18-Apr-02 3.1 01-Apr-03 1.56 102 -- -- 25-Apr-02 1.1 04-Apr-03 4.11 102 -- -- 28-Apr-02 0.25 ND 07-Apr-03 0.184 102 -- -- 01-May-02 0.87 10-Apr-03 0.16 102 -- -- 04-May-02 0.6 13-Apr-03 0.441 102 -- -- 07-May-02 0.98 16-Apr-03 10 102 -- -- 10-May-02 0.551 19-Apr-03 4.33 102 -- -- 13-May-02 0.679 22-Apr-03 0.215 Max = 2.4 Avg = 0.52 Max = 17 Avg = 1.1 --



### ICF International A-7 DRAFT – December 2006

### Appendix A

2001 2002

Date Date Date 

## Exhibit A-2. High-Volume Air Monitoring Results for Pb - Primary

Pb Smelter a

Pilot Analysis

ID Sampling Dates and Results ( μ g/m 3 ) b,c

2003

102 -- -- 16-May-02 2.19 28-Apr-03 0.435 102 -- -- 19-May-02 0.148 01-May-03 0.926 102 -- -- 22-May-02 3.84 04-May-03 0.671 102 -- -- 25-May-02 1.72 13-May-03 1.41 102 -- -- 29-May-02 0.645 16-May-03 0.319 102 -- -- 31-May-02 1.26 19-May-03 0.512 102 -- -- 03-Jun-02 2.27 22-May-03 0.11 102 -- -- 06-Jun-02 0.441 25-May-03 0.05 ND 102 -- -- 09-Jun-02 1.96 28-May-03 0.245 102 -- -- 12-Jun-02 0.962 31-May-03 0.274

102 -- -- 15-Jun-02 0.365 03-Jun-03 0.188

102 -- -- 18-Jun-02 2.89 06-Jun-03 0.381

102 -- -- 21-Jun-02 1.12 09-Jun-03 1.35

102 -- -- 24-Jun-02 1.72 12-Jun-03 0.418

102 -- -- 27-Jun-02 1.06 15-Jun-03 0.096

102 -- -- 30-Jun-02 0.273 18-Jun-03 0.406

102 -- -- 03-Jul-02 1.23 21-Jun-03 0.475

102 -- -- 06-Jul-02 0.747 24-Jun-03 2.33

102 -- -- 09-Jul-02 0.739 27-Jun-03 0.469

102 -- -- 12-Jul-02 0.616 30-Jun-03 2.29

102 -- -- 15-Jul-02 0.522 03-Jul-03 0.964

102 -- -- 18-Jul-02 0.967 06-Jul-03 1.15

102 -- -- 22-Jul-02 0.667 -- --

102 -- -- 26-Jul-02 6.48 -- --

102 -- -- 29-Jul-02 0.913 -- -- 102 -- -- 01-Aug-02 1.18 -- -- 102 -- -- 04-Aug-02 0.663 -- -- 102 -- -- 07-Aug-02 0.434 -- -- 102 -- -- 10-Aug-02 0.932 -- -- 102 -- -- 13-Aug-02 2.86 -- -- 102 -- -- 16-Aug-02 4.93 -- -- 102 -- -- 19-Aug-02 1.04 -- -- 102 -- -- 22-Aug-02 3.8 -- -- 102 -- -- 25-Aug-02 0.135 -- -- 102 -- -- 28-Aug-02 0.262 -- -- 102 -- -- 31-Aug-02 0.205 -- -- 102 -- -- 03-Sep-02 0.411 -- -- 102 -- -- 06-Sep-02 0.586 -- -- 102 -- -- 09-Sep-02 0.614 -- -- 102 -- -- 12-Sep-02 0.318 -- -- 102 -- -- 21-Sep-02 0.29 -- -- 102 -- -- 24-Sep-02 0.261 -- -- 102 -- -- 27-Sep-02 0.314 -- -- 102 -- -- 30-Sep-02 4.56 -- --

102 -- -- 03-Oct-02 1.53 -- --

102 -- -- 06-Oct-02 0.611 -- --

102 -- -- 09-Oct-02 1.77 -- --

102 -- -- 12-Oct-02 0.412 -- --

102 -- -- 15-Oct-02 0.17 -- --

102 16-Oct-01 0.31 18-Oct-02 2.44 -- --

102 18-Oct-01 16 21-Oct-02 0.759 -- --

102 23-Oct-01 2.5 24-Oct-02 0.215 -- --



### ICF International A-8 DRAFT – December 2006

### Appendix A

2001 2002

Date Date Date 

## Exhibit A-2. High-Volume Air Monitoring Results for Pb - Primary

Pb Smelter a

Pilot Analysis

ID Sampling Dates and Results ( μ g/m 3 ) b,c

2003

102 26-Oct-01 0.25 27-Oct-02 0.152 -- --

102 29-Oct-01 14 30-Oct-02 0.125 -- --

102 01-Nov-01 18 02-Nov-02 0.069 -- --

102 04-Nov-01 0.48 05-Nov-02 0.099 -- --

102 08-Nov-01 0.83 08-Nov-02 10.7 -- --

102 11-Nov-01 0.58 11-Nov-02 0.15 -- --

102 14-Nov-01 4.2 14-Nov-02 1.07 -- --

102 16-Nov-01 0.99 17-Nov-02 0.108 -- --

102 19-Nov-01 0.4 20-Nov-02 0.708 -- --

102 22-Nov-01 13 23-Nov-02 0.287 -- --

102 26-Nov-01 65 26-Nov-02 0.145 -- --

102 28-Nov-01 0.24 ND 29-Nov-02 0.15 -- --

102 04-Dec-01 7.5 02-Dec-02 0.776 -- --

102 07-Dec-01 0.85 05-Dec-02 0.896 -- --

102 10-Dec-01 1.4 08-Dec-02 0.376 -- --

102 13-Dec-01 0.22 ND 11-Dec-02 0.919 -- --

102 17-Dec-01 0.23 ND 14-Dec-02 0.568 -- --

102 19-Dec-01 0.85 17-Dec-02 2.32 -- --

102 22-Dec-01 5.1 20-Dec-02 0.224 -- --

102 26-Dec-01 0.49 23-Dec-02 0.233 -- --

102 28-Dec-01 0.53 26-Dec-02 0.083 -- --

102 31-Dec-01 0.25 29-Dec-02 5.24 -- --

102 Summary: 2001 2002 2003

103 3-Jan-02 0.92 10-Jan-03 0.402

103 7-Jan-02 0.43 13-Jan-03 0.621

103 10-Jan-02 0.73 16-Jan-03 0.23

103 13-Jan-02 1.3 19-Jan-03 0.155

103 16-Jan-02 1.5 22-Jan-03 0.058

103 19-Jan-02 0.25 ND 25-Jan-03 0.326

103 22-Jan-02 2.1 28-Jan-03 0.864

103 25-Jan-02 0.59 31-Jan-03 0.075

103 28-Jan-02 1.9 3-Feb-03 0.069

103 31-Jan-02 0.46 6-Feb-03 0.283

103 5-Feb-02 1 9-Feb-03 0.566

103 8-Feb-02 0.61 12-Feb-03 0.65

103 11-Feb-02 0.49 15-Feb-03 0.05 ND

103 14-Feb-02 0.38 18-Feb-03 1.22

103 18-Feb-02 1.4 21-Feb-03 0.104

103 21-Feb-02 0.32 24-Feb-03 0.135

103 26-Feb-02 0.24 ND 27-Feb-03 0.05 ND

103 1-Mar-02 6.1 2-Mar-03 0.085

103 4-Mar-02 0.49 5-Mar-03 0.105

103 7-Mar-02 0.94 8-Mar-03 0.377

103 11-Mar-02 1.2 11-Mar-03 0.993

103 14-Mar-02 1.5 14-Mar-03 0.395

103 17-Mar-02 0.25 ND 17-Mar-03 2.2

103 20-Mar-02 0.26 ND 20-Mar-03 0.655

103 23-Mar-02 0.25 ND 23-Mar-03 0.422

103 26-Mar-02 0.3 26-Mar-03 0.421

103 29-Mar-02 2.1 29-Mar-03 0.056 103 1-Apr-02 0.62 1-Apr-03 0.236 Max = 65 Avg = 6.2 Max = 25 Avg = 2.4 Max = 10 Avg = 1



### ICF International A-9 DRAFT – December 2006

### Appendix A

2001 2002

Date Date Date 

## Exhibit A-2. High-Volume Air Monitoring Results for Pb - Primary

Pb Smelter a

Pilot Analysis

ID Sampling Dates and Results ( μ g/m 3 ) b,c

2003

103 4-Apr-02 0.24 ND 4-Apr-03 0.169 103 7-Apr-02 1.4 7-Apr-03 0.205 103 10-Apr-02 3.8 10-Apr-03 0.113 103 16-Apr-02 1.2 13-Apr-03 0.908 103 18-Apr-02 1.7 16-Apr-03 0.218 103 22-Apr-02 1.1 19-Apr-03 2.15 103 25-Apr-02 0.23 ND 22-Apr-03 0.145 103 28-Apr-02 0.25 ND 25-Apr-03 0.093 103 1-May-02 1.8 1-May-03 0.242 103 4-May-02 0.4 7-May-03 0.455 103 7-May-02 0.42 10-May-03 0.369 103 10-May-02 1.43 13-May-03 0.679 103 13-May-02 0.082 16-May-03 0.14 103 22-May-02 1.53 19-May-03 0.383 103 25-May-02 0.232 22-May-03 0.078 103 29-May-02 0.906 25-May-03 0.06 103 31-May-02 0.449 28-May-03 0.164 103 3-Jun-02 0.342 31-May-03 0.166

103 6-Jun-02 0.338 3-Jun-03 0.105

103 9-Jun-02 0.35 6-Jun-03 1.15

103 15-Jun-02 0.204 9-Jun-03 0.126

103 18-Jun-02 0.86 12-Jun-03 0.511

103 21-Jun-02 1.11 15-Jun-03 0.05 ND

103 24-Jun-02 1.06 18-Jun-03 0.907

103 27-Jun-02 0.46 21-Jun-03 0.133

103 30-Jun-02 0.097 24-Jun-03 0.32

103 3-Jul-02 0.68 27-Jun-03 0.098

103 6-Jul-02 0.286 30-Jun-03 0.453

103 9-Jul-02 0.342 3-Jul-03 0.159

103 12-Jul-02 0.276 6-Jul-03 0.051

103 15-Jul-02 0.244 -- --

103 18-Jul-02 0.878 -- --

103 22-Jul-02 0.728 -- --

103 26-Jul-02 0.537 -- --

103 29-Jul-02 0.422 -- -- 103 1-Aug-02 2.59 -- -- 103 4-Aug-02 0.258 -- -- 103 7-Aug-02 0.159 -- -- 103 10-Aug-02 0.379 -- -- 103 13-Aug-02 0.077 -- -- 103 16-Aug-02 0.46 -- -- 103 19-Aug-02 0.756 -- -- 103 22-Aug-02 0.296 -- -- 103 25-Aug-02 0.057 -- -- 103 28-Aug-02 0.107 -- -- 103 31-Aug-02 0.33 -- -- 103 3-Sep-02 0.291 -- -- 103 6-Sep-02 1.11 -- --

103 13-Oct-01 0.994 -- -- -- --

103 16-Oct-01 0.56 -- -- -- --

103 18-Oct-01 0.96 -- -- -- --

103 23-Oct-01 0.32 ND -- -- -- --



### ICF International A-10 DRAFT – December 2006

### Appendix A

2001 2002

Date Date Date 

## Exhibit A-2. High-Volume Air Monitoring Results for Pb - Primary

Pb Smelter a

Pilot Analysis

ID Sampling Dates and Results ( μ g/m 3 ) b,c

2003

103 26-Oct-01 0.33 -- -- -- --

103 29-Oct-01 2.5 -- -- -- --

103 01-Nov-01 0.86 -- -- -- --

103 04-Nov-01 0.25 -- -- -- --

103 08-Nov-01 0.87 -- -- -- --

103 11-Nov-01 0.59

-- -- -- -- 103 14-Nov-01 3.6 -- -- -- --

103 16-Nov-01 1 -- -- -- --

103 19-Nov-01 0.35 -- -- -- --

103 22-Nov-01 1.1 -- -- -- --

103 26-Nov-01 2.9 -- -- -- --

103 28-Nov-01 0.23 ND -- -- -- --

103 01-Dec-01 0.85 -- -- -- --

103 04-Dec-01 2.1 -- -- -- --

103 07-Dec-01 1.3 -- -- -- --

103 10-Dec-01 2.3 -- -- -- --

103 13-Dec-01 0.26 -- -- -- --

103 17-Dec-01 0.24 ND -- -- -- --

103 19-Dec-01 0.39 -- -- -- --

103 22-Dec-01 0.25 ND -- -- -- --

103 26-Dec-01 0.4 -- -- -- --

103 Summary: 2001 2002 2003

a 

### Data were obtained from EPA Region 7 (2006).

b 

### "--" indicates that no sample was collected during that time. Max = 3.6 Avg = 1 Max = 6.1 Avg = 0.8 Max = 2.2 Avg = 0.39

c 

### A value qualified with an "ND" represents a non-detect. The value presented is the detection limit.For the purpose of calculating averages, one-half the detection limit was used as the value for nondetects.



### ICF International A-11 DRAFT – December 2006

### Appendix A

2001 2002 2003 2004 2005

290990015 3.18 1.29 1.31 1.37 1.56

290990004 -- -- -- 1.27 0.94

290990005 2.11 0.4 0.308 0.436 0.28

290990011 1.52 0.51 0.414 0.558 0.28

290990016 -- -- -- 0.3 0.20

290990013 0.904 0.240 0.194 0.437 0.20

290990008 0.273 0.070 0.102 0.097 0.14

290990010 0.077 0.070 0.034 0.046 0.06

290990009 0.332 0.050 0.086 0.105 0.07

a 

### AirData values are for average annual Pb concentrations in total suspended particulate matter (TSP) and were obtained from the AirData website monitor reports. In some cases, there was more than one monitor

at a site.

b 

### "--" indicates that data was not available. Average Monitored Pb Concentrations ( μ g/m 3 ) a,b

Monitor ID 

## Located Around the Primary Pb Smelter

Exhibit A-3. Average Annual Pb Concentrations from AirData Monitors

ICF International A-12 DRAFT – December 2006

### Appendix A



## Exhibit A-4. Pre-Excavation Soil Sampling Results for Pb - Primary Pb Smelter a

RESULTS (mg/kg) b, c

Quadrant 1 Quadrant 2 Quadrant 3 Quadrant 4

140 03-Oct-01 920 853 460 1060 823
141 03-Oct-01 1500 724 1470 818 1128
142 03-Oct-01 377 602 762 731 618
143 03-Oct-01 757 1390 1200 563 978
144 03-Oct-01 1680 1030 685 719 1029
145 03-Oct-01 2770 2210 1070 783 1708
146 03-Oct-01 1280 809 433 731 813
147 03-Oct-01 2640 1530 596 674 1360
148 03-Oct-01 670 1360 13100 465 3899
149 03-Oct-01 2820 2080 1540 1400 1960
150 03-Oct-01 403 1330 350 748 708
151 03-Oct-01 783 913 736 1240 918
152 04-Oct-01 803 1140 660 696 825

153 04-Oct-01 270 5530 1140 486 1857

154 04-Oct-01 4220 2160 1440 1360 2295

155 04-Oct-01 1260 873 1360 612 1026
156 04-Oct-01 1260 1450 636 2190 1384
157 05-Oct-01 1330 1550 1460 1630 1493
158 04-Oct-01 3100 9390 756 781 3507

159 04-Oct-01 1660 5780 428 440 2077
160 04-Oct-01 1150 853 927 269 800
161 04-Oct-01 1720 1790 1420 846 1444
162 04-Oct-01 1670 1800 526 2320 1579

163 04-Oct-01 13600 4870 2190 8450 7278
164 04-Oct-01 6900 10700 8360 5270 7808
165 04-Oct-01 6640 6500 7760 6200 6775

166 05-Oct-01 16600 11800 5970 8860 10808
167 05-Oct-01 28000 32100 8490 14200 20698
168 05-Oct-01 16700 18600 10400 2130 11958

169 05-Oct-01 12800 5640 4610 15800 9713
170 05-Oct-01 8670 4140 3950 4060 5205

171 10-Oct-01 1400 2120 461 1470 1363
172 10-Oct-01 851 1530 1270 728 1095

173 10-Oct-01 1160 1090 751 1570 1143
174 10-Oct-01 1270 1260 2530 1320 1595

175 10-Oct-01 2750 2580 5200 1260 2948
176 10-Oct-01 1720 2030 1620 515 1471
177 10-Oct-01 2760 3370 2190 7510 3958

178 08-Oct-01 4950 3690 1040 649 2582

179 08-Oct-01 1010 1800 1270 1250 1333
180 08-Oct-01 1330 2010 1220 899 1365

181 08-Oct-01 1070 2260 1160 976 1367
182 08-Oct-01 22500 5110 886 302 7200
183 08-Oct-01 1980 3020 1210 1050 1815

184 08-Oct-01 5830 4370 1510 1520 3308
185 09-Oct-01 2230 1670 796 936 1408
186 09-Oct-01 1020 1220 652 366 815

187 09-Oct-01 833 898 795 1050 894
188 09-Oct-01 2350 1820 1100 886 1539

189 09-Oct-01 1110 1070 1680 849 1177
190 09-Oct-01 930 818 922 910 895

191 09-Oct-01 1730 2180 24000 3600 7878 Pilot Analysis ID Sampling Date Property Average
(mg/kg) d



### ICF International A-13 DRAFT – December 2006

### Appendix A



## Exhibit A-4. Pre-Excavation Soil Sampling Results for Pb - Primary Pb Smelter a

RESULTS (mg/kg) b, c

Quadrant 1 Quadrant 2 Quadrant 3 Quadrant 4 Pilot Analysis ID Sampling Date Property Average
(mg/kg) d

192 09-Oct-01 3150 1230 710 1180 1568

193 10-Oct-01 5740 1590 14600 11200 8283
194 10-Oct-01 3670 998 1360 3520 2387
195 10-Oct-01 7240 1820 906 1880 2962
196 10-Oct-01 1180 2310 1550 979 1505

197 11-Oct-01 2210 5630 2430 1870 3035

198 11-Oct-01 857 850 423 112 561

199 11-Oct-01 648 330 310 117 351

200 11-Oct-01 559 156 710 296 430
201 11-Oct-01 373 86 95 212 192
202 12-Oct-01 211 160 389 203 241
203 12-Oct-01 870 579 1090

-- 846
204 12-Oct-01 183 308 174 184 212
205 11-Oct-01 326 157 251 66 200
206 11-Oct-01 234 236 201 220 223
207 09-Oct-01 1040 1140 1150 826 1039
208 10-Oct-01 3050 2150 1890 1800 2223
209 10-Oct-01 1510 2030 1390 1100 1508

210 10-Oct-01 7490 546 1870 3830 3434
211 10-Oct-01 2400 2200 952 642 1549

212 10-Oct-01 163 273 341 642 355

213 10-Oct-01 8500 1640 3340 1020 3625

214 11-Oct-01 2100 2010 1150 1010 1568

215 11-Oct-01 1320 1020 1160 1420 1230
216 11-Oct-01 948 1070 1010 962 998
217 10-Oct-01 541 754 826 668 697
218 11-Oct-01 1320 671 588 562 785

219 11-Oct-01 685 858 1150 773 867
220 11-Oct-01 1050 1770 714 1020 1139 221 02-Aug-04 395 470 202.7

-- 356

222 11-Oct-01 1340 676 469 1610 1024
223 11-Oct-01 424 555 474 199 413
224 11-Oct-01 772 504 459 581 579

225 11-Oct-01 1170 592 511 651 731
226 11-Oct-01 323 381 357 606 417
227 11-Oct-01 475 526 124 612 434
228 11-Oct-01 324 680 343 479 457

229 11-Oct-01 374 511 307 5430 1656

230 11-Oct-01 333 423 492 148 349
231 09-Oct-01 501 706 889 873 742
232 09-Oct-01 1580 1870 1060 1220 1433
233 09-Oct-01 1640 3810 900 686 1759

234 09-Oct-01 1100 2350 721 600 1193
235 09-Oct-01 1200 1480 636 599 979
236 12-Oct-01 1420 614 731 1280 1011
237 09-Oct-01 1250 792 1810 981 1208
238 11-Oct-01

-- 492 1300 3420 1737
239 09-Oct-01 9820 2440 1630 2730 4155

240 09-Oct-01 2320 3070 4230 1460 2770
241 12-Oct-01 691 4130 392 634 1462
242 12-Oct-01 495 860 525 460 585

243 12-Oct-01 313 354 539 638 461



### ICF International A-14 DRAFT – December 2006

### Appendix A



## Exhibit A-4. Pre-Excavation Soil Sampling Results for Pb - Primary Pb Smelter a

RESULTS (mg/kg) b, c

Quadrant 1 Quadrant 2 Quadrant 3 Quadrant 4 Pilot Analysis ID Sampling Date Property Average
(mg/kg) d

244 12-Oct-01 671 547 530 731 620
245 12-Oct-01 586 785 595 700 667
246 12-Oct-01 703 801 468 760 683
247 12-Oct-01 498 813 537 484 583

248 12-Oct-01 431 368 670 524 498
249 12-Oct-01 279 568 1020 1690 889
250 12-Oct-02 914 864 830 1200 952

251 12-Oct-01 4130 2980 2540 857 2627
252 12-Oct-01 2330 1160 1360 1430 1570

253 11-Oct-01 413 1180 2140 964 1174
254 11-Oct-01 1010 1700 1100 1090 1225

255 11-Oct-01 756 890 1360 1290 1074
256 11-Oct-01 2090 2480 1130 1800 1875

257 09-Oct-01 967 1400 993 933 1073
258 11-Oct-01 1680 1420 1430 1660 1548

259 11-Oct-01 1290 3420 1670 4400 2695

260 11-Oct-01 1200 1460 1470 807 1234
261 11-Oct-01 934 1550 1730 1830 1511

262 11-Oct-01 1990 1980 1040 1280 1573

263 09-Oct-01 1890 1160 1220 1430 1425

264 11-Oct-01 1650 2220 1360 1300 1633
265 09-Oct-01 1090 1010 1060 885 1011
266 11-Oct-01 2390 2460 1210 1850 1978
267 11-Oct-01 1440 1770 1230 1930 1593

268 11-Oct-01 1040 1080 1220 1040 1095

269 11-Oct-01 1230 981 1050 1160 1105

270 11-Oct-01 4270 909 917 1030 1782
271 11-Oct-01 1360 1060 897 709 1007
272 11-Oct-01 612 2060 658 687 1004
273 09-Oct-01 315 340 630 232 379
274 09-Oct-01 703 719 520 664 652

275 09-Oct-01 694 731 660 393 620
276 09-Oct-01 254 443 136 216 262
277 09-Oct-01 868 797 349 522 634
278 09-Oct-01 245 204 59 48 139
279 10-Oct-01 1230 1330 982 822 1091
280 10-Oct-01 21100 893 475 441 5727

281 08-Oct-01 1120 1910 1090 957 1269
282 08-Oct-01 7650 6940 3380 4920 5723

283 08-Oct-01 4400 3060 2250 2010 2930
284 08-Oct-01 4690 6760 3270 4850 4893
285 08-Oct-01 4690 6760 3270 4850 4893
286 08-Oct-01 8380 8590 6850 6870 7673
287 08-Oct-01 6020 5650 2420 3580 4418
288 08-Oct-01 19900 20500 9766 9020 14797
289 08-Oct-01 1880 602 950 596 1007
290 08-Oct-01 887 636 2220 1750 1373
291 08-Oct-01 662 398 538 1240 710
292 08-Oct-01 2510 1510 3510 2530 2515

293 08-Oct-01 436 698 682 528 586

294 08-Oct-01 189 330 534 409 366
295 10-Oct-01 1130 3180 1580 1070 1740



### ICF International A-15 DRAFT – December 2006

### Appendix A



## Exhibit A-4. Pre-Excavation Soil Sampling Results for Pb - Primary Pb Smelter a

RESULTS (mg/kg) b, c

Quadrant 1 Quadrant 2 Quadrant 3 Quadrant 4 Pilot Analysis ID Sampling Date Property Average
(mg/kg) d

296 08-Oct-01 3100 3180 2240 1680 2550

297 08-Oct-01 1630 1650 1940 1810 1758

298 08-Oct-01 993 1080 3700 2010 1946
299 10-Oct-01 129 7280 2880 2160 3112
300 10-Oct-01 688 1190 1670 1800 1337
301 09-Oct-01 4130 6070 1220 989 3102
302 10-Oct-01 223 13000 5320 2230 5193

303 09-Oct-01 1220 1120 180 640 790
304 09-Oct-01 500 667 381 203 438
305 09-Oct-01 569 506 650 630 589

306 09-Oct-01 818 664 917 1170 892
307 10-Oct-01 498 465 492 744 550

308 10-Oct-01 954 1360 1050 695 1015

309 10-Oct-01 824 581 529 580 629
310 09-Oct-01 648 714 809 838 752

311 09-Oct-01 977 875 808 926 897
312 09-Oct-01 657 728 593 619 649
313 10-Oct-01 890 720 612 607 707
314 10-Oct-01 11200 1110 177 159 3162
315 10-Oct-01 590 858 393 375 554

316 10-Oct-01 825 957 794 854 858

317 10-Oct-01 658 436 533 503 533

318 10-Oct-01 509 578 484 1470 760
319 10-Oct-01 1100 1540 1320 397 1089
320 10-Oct-01 827 962

-- -- 895

321 10-Oct-01 1200 1040 1160 2790 1548

322 10-Oct-01 2570 3400 1590 2190 2438
323 10-Oct-01 814 720 1320 1220 1019
324 10-Oct-01 2130 2490 2650 1810 2270
325 02-Oct-01 2970 2470 1300 916 1914
326 08-Oct-01 20700 10600 8880 2590 10693
327 08-Oct-01 6490 8670 2650 3930 5435

328 08-Oct-01 8080 6010 3470 2990 5138

329 08-Oct-01 5160 2510 996 1040 2427
330 09-Oct-01 1040 1900 1330 2040 1578

331 12-Oct-01 1800 1480 1470 1400 1538

332 12-Oct-01 1530 1720 594 1810 1414
333 12-Oct-01 1150 1620 1730 1540 1510

334 12-Oct-01 831 619 1360 1210 1005

335 12-Oct-01 1630 4470 944 1600 2161
336 19-Oct-01 11400 11600 8180 7050 9558

337 18-Oct-01 1080 1770 563 854 1067
338 18-Oct-01 999 1050 753 772 894
339 18-Oct-01 660 3900 1600 1060 1805

340 15-Oct-01 945 814 953 954 917
341 15-Oct-01 742 2060 1010 778 1148
342 15-Oct-01 1290 807 562 244 726
343 15-Oct-01 959 1080 1566 1220 1206
344 15-Oct-01 801 364 637 472 569

345 15-Oct-01 1230 59 419 1080 697
346 15-Oct-01 730 348 396 281 439
347 19-Oct-01 371 726 964 394 614



### ICF International A-16 DRAFT – December 2006

### Appendix A



## Exhibit A-4. Pre-Excavation Soil Sampling Results for Pb - Primary Pb Smelter a

RESULTS (mg/kg) b, c

Quadrant 1 Quadrant 2 Quadrant 3 Quadrant 4 Pilot Analysis ID Sampling Date Property Average
(mg/kg) d

348 15-Oct-01 860 527 892 430 677
349 15-Oct-01 388 334 266 210 300
350 15-Oct-01 128 490 488 161 317
351 17-Oct-01 624 869 316 379 547

352 17-Oct-01 1250 857 425 1480 1003
353 19-Oct-01 2320 2740 1160 2860 2270
354 17-Oct-01 1370 3900 1350 1050 1918
355 17-Oct-01 180 392 413 413 350

356 17-Oct-01 300 263 144 100 202
357 17-Oct-01 826 798 496 960 770
358 17-Oct-01 919 560 288 771 635

359 17-Oct-01 886 617 128 143 444
360 17-Oct-01 1110 549 806

-- 822
361 17-Oct-01 624 886 257 544 578

362 15-Oct-01 907 9421 699 1110 3034
363 15-Oct-01 890 2160 947

-- 1332
364 15-Oct-01 372 1110 1240 1060 946
365 15-Oct-01 564 913 1220 521 805

366 15-Oct-01 231 838 926 244 560

367 15-Oct-01 173 330 250 915 417
368 18-Oct-01 302 480 688 319 447
369 16-Oct-01 12100 5170 9140 4290 7675

370 18-Oct-01 1380 855 480 519 809
371 16-Oct-01 2740 977 1300 1850 1717
372 18-Oct-01 65 210 169 135 145

373 16-Oct-01 237 209 197 200 211
374 16-Oct-01 691 228 354 197 368
375 16-Oct-01 510 341 159 434 361
376 16-Oct-01 179 666 1080 41 492
377 16-Oct-01 257 229 113 151 188
378 16-Oct-01 435 382 498 391 427
379 16-Oct-01 237 413 330 309 322
380 16-Oct-01 342 448 614 281 421
381 17-Oct-01 466 618 532 529 536

382 17-Oct-01 454 559 726 629 592

383 19-Oct-01 270 383 311 433 349
384 19-Oct-01 294 288 815 768 541

385 16-Oct-01 367 1690 391 1080 882
386 16-Oct-01 4970 4250 3700 2680 3900
387 16-Oct-01 3130 2750 3180 2010 2768
388 16-Oct-01 1280 1570 5100 1170 2280
389 18-Oct-01 1120 8100 159 756 2534

390 18-Oct-01 1800 1750 1400 1400 1588

391 16-Oct-01 1380 1010 1150 936 1119
392 18-Oct-01 977 1330 758 1500 1141
393 16-Oct-01 1130 1923 425 741 1055

394 16-Oct-01 319 904 584 396 551

395 18-Oct-01 523 782 758 766 707
396 18-Oct-01 634 800 903 452 697
397 18-Oct-01 377 60 658 529 406
398 18-Oct-01 289 155 263 868 394
399 18-Oct-01 691 464 408 416 495



### ICF International A-17 DRAFT – December 2006

### Appendix A



## Exhibit A-4. Pre-Excavation Soil Sampling Results for Pb - Primary Pb Smelter a

RESULTS (mg/kg) b, c

Quadrant 1 Quadrant 2 Quadrant 3 Quadrant 4 Pilot Analysis ID Sampling Date Property Average
(mg/kg) d

400 18-Oct-01 451 1010 391 440 573

401 15-Oct-01 814 1040 567 969 848
402 15-Oct-01 2970 3080 396 513 1740
403 18-Oct-01 1670 2290 1440 1230 1658

404 15-Oct-01 655 636 401 545 559

405 18-Oct-01 679 516 688 519 601
406 15-Oct-01 748 1110 311 896 766
407 15-Oct-01 440 514 324 346 406
408 15-Oct-01 470 682

-- 573 575

409 15-Oct-01 1010 1060 489 1620 1045

410 15-Oct-01 928 1090 682 1500 1050

411 15-Oct-01 982 541 791 444 690
412 15-Oct-01 768 867

-- 649 761
413 16-Oct-01 874 1110 1340 767 1023
414 16-Oct-01 1160 1150 621 814 936
415 16-Oct-01 1160 1130 609 245 786
416 16-Oct-01 1240 866 1070 1260 1109
417 16-Oct-01 9530 3450 537 2060 3894
418 16-Oct-01 1640 1290 331 329 898
419 19-Oct-01 332 560 165 440 374
420 18-Oct-01 733 455 524 529 560

421 18-Oct-01 774 559 341 307 495

422 18-Oct-01 492 800 281 639 553

423 18-Oct-01 530 804 793 440 642
424 18-Oct-01 562 1320 578 619 770
425 16-Oct-01 1040 1360 1030 1139 1142
426 16-Oct-01 949 1240 850 1110 1037
427 18-Oct-01 1230 4410 2010 2230 2470
428 17-Oct-01 836 1540 778 934 1022
429 17-Oct-01 1710 1490 1160 1940 1575

430 17-Oct-01 1530 1170 597 471 942
431 17-Oct-01 1990 1820 426 321 1139
432 17-Oct-01 945 1250 560 323 770
433 17-Oct-01 2050 2990 1970 9410 4105

434 17-Oct-01 1270 2660 3930 1140 2250

435 19-Oct-01 2670 594 1520 1170 1489
436 17-Oct-01 556 1880 1090 1460 1247
437 05-Oct-01 3850 5830 5610 3240 4633
438 17-Oct-01 515 2150 285 228 795

439 18-Oct-01 1880 1220 1960 3230 2073
440 16-Oct-01 1380 1070 1480 1880 1453

441 16-Oct-01 3780 3230 2240 2430 2920
442 19-Oct-01 13500 5180 5590 6500 7693
443 16-Oct-01 3500 5010 1630 754 2724
444 18-Oct-01 1890 1540 1830 1920 1795

445 18-Oct-01 710 719 998 1650 1019
446 18-Oct-01 3670 645 1050 1290 1664
447 18-Oct-01 564 775 352 631 581

448 18-Oct-01 436 854 516 2010 954

449 18-Oct-01 858 446 544 719 642
450 18-Oct-01 322 635 527 491 494
451 18-Oct-01 781 821 661 800 766



### ICF International A-18 DRAFT – December 2006

### Appendix A



## Exhibit A-4. Pre-Excavation Soil Sampling Results for Pb - Primary Pb Smelter a

RESULTS (mg/kg) b, c

Quadrant 1 Quadrant 2 Quadrant 3 Quadrant 4 Pilot Analysis ID Sampling Date Property Average
(mg/kg) d

452 18-Oct-01 435 249 726 657 517

453 18-Oct-01 403 740 556 552 563

454 18-Oct-01 682 618 578 788 667
455 18-Oct-01 422 402 690 577 523

456 19-Oct-01 697 4780 858 408 1686
457 18-Oct-01 674 430 390 509 501

458 18-Oct-01 124 333 1610 638 676
459 18-Oct-01 566 732 406 240 486
460 18-Oct-01 865 562 453 670 638
461 18-Oct-01 489 386 599 487 490
462 18-Oct-01 518 950 548 552 642
463 17-Oct-01 829 416 100 194 385

464 17-Oct-01 342 718 424 580 516

465 17-Oct-01 357 530 343 487 429
466 17-Oct-01 553 596 401 581 533

467 19-Oct-01 778 33 370 495 419
468 17-Oct-01 1330 1310 707 381 932
469 17-Oct-01 89 286 464 230 267
470 19-Oct-01 1770 903 398 1350 1105

471 19-Oct-01 1230 1390 624 379 906
472 19-Oct-01 815 835 494 720 716
473 15-Oct-01 1670 534 933 1520 1164
474 15-Oct-01 569 158 1030 884 660
475 15-Oct-01 98 168 299 280 211
476 19-Oct-01 603 744 592 607 637
477 16-Oct-01 264 1670 2730 1900 1641
478 16-Oct-01 1390 999 560 878 957

479 16-Oct-01 412 439 570 613 509

480 16-Oct-01 669 110 854 602 559

481 16-Oct-01 156 862 335 189 386
482 16-Oct-01 2280 1340 1860 2820 2075

483 16-Oct-01 795 661 1660 1020 1034
484 17-Oct-01 2440 2340 1330 1210 1830
485 17-Oct-01 1620 1830 826 1390 1417
486 17-Oct-01 2450 1240 809 702 1300
487 18-Oct-01 1060 3930 1810 974 1944
488 17-Oct-01 887 847 1370 625 932
489 18-Oct-01 489 618 2760 904 1193
490 16-Oct-01 529 721 399 550 550

491 18-Oct-01 1400 353 956 784 873
492 17-Oct-01 434 903 608 634 645

493 17-Oct-01 429 399 492 542 466
494 17-Oct-01 592 986 955 1270 951

495 17-Oct-01 1640 440 641 749 868
496 23-Oct-01 1560 1170 2020 1170 1480
497 23-Oct-01 2440 3120 1460 1700 2180
498 23-Oct-01 1190 775 1590 1810 1341
499 23-Oct-01 313 372 396 365 362
500 23-Oct-01 453 301 2820 518 1023
501 23-Oct-01 6830 1260 3470 4900 4115

502 23-Oct-01 2250 3100 2000 2000 2338
503 23-Oct-01 3120 2370 3350 2030 2718



### ICF International A-19 DRAFT – December 2006

### Appendix A



## Exhibit A-4. Pre-Excavation Soil Sampling Results for Pb - Primary Pb Smelter a

RESULTS (mg/kg) b, c

Quadrant 1 Quadrant 2 Quadrant 3 Quadrant 4 Pilot Analysis ID Sampling Date Property Average
(mg/kg) d

504 23-Oct-01 2530 1550 5480 3190 3188
505 23-Oct-01 1110 1570 2250 1380 1578

506 23-Oct-01 1020 1100 1010 1250 1095

507 23-Oct-01 2640 7230 1120 2030 3255

508 23-Oct-01 534 464 988 1040 757

509 23-Oct-01 837 755 1560 1170 1081
510 23-Oct-01 716 617 768 888 747
511 23-Oct-01 2830 2550 1060

-- 2147
512 23-Oct-01 2130 3110 1390 1420 2013
513 23-Oct-01 5350 3330 1090 1300 2768
514 23-Oct-01 1020 1690 1290 1500 1375

515 23-Oct-01 970 1420 2260 2070 1680
516 23-Oct-01 1400 1570 1630 1090 1423
517 23-Oct-01 1120 1370 1350 1270 1278
518 23-Oct-01 972 1510 1480 1460 1356

519 23-Oct-01 1110 797 1110 1590 1152

520 23-Oct-01 5490 1770

-- -- 3630
521 23-Oct-01 3590 2150 12700 7510 6488
522 23-Oct-01 505 1040 852 420 704
523 23-Oct-01 32800 13300 24100 23200 23350

524 23-Oct-01 2530 1860 3070 3400 2715

525 23-Oct-01 863 2150 2110 2440 1891
526 24-Oct-01 2950 2470 1600 1610 2158

527 24-Oct-01 1480 1400 1040 684 1151

528 24-Oct-01 642 601 533 619 599

529 24-Oct-01 720 1300 903 1070 998
530 24-Oct-01 1050 749 801 1700 1075

531 24-Oct-01 511 438 641 882 618
532 24-Oct-01 1640 1490 8220 8520 4968
533 24-Oct-01 215 659 677 624 544

534 24-Oct-01 12100 8330 5310 11700 9360
535 24-Oct-01 1130 2540 2240 2270 2045

536 24-Oct-01 213 211 530 373 332
537 24-Oct-01 197 171

-- -- 184
538 24-Oct-01 1780 2070 1290 1750 1723
539 24-Oct-01 408 203 171 529 328
540 24-Oct-01 1180 1370 870 644 1016
541 24-Oct-01 518 386 831 381 529

542 24-Oct-01 806 594 1150 747 824
543 24-Oct-01 1180 1280 868 942 1068
544 24-Oct-01 2020 814 304 353 873
545 25-Oct-01 8630 7640 7030 4840 7035

546 25-Oct-01 615 1150 430 930 781
547 25-Oct-01 1020 1650 1920 686 1319
548 25-Oct-01 1890 2250 1770 3750 2415

549 25-Oct-01 2110 2650 3260 3690 2928
550 25-Oct-01 1860 2820 2930 1530 2285

551 25-Oct-01 7670 14600 308 1120 5925

552 25-Oct-01 11500 7460 2620 5670 6813
553 25-Oct-01 11300 5310 4030 3570 6053

554 25-Oct-01 772 1870 1700 1440 1446
555 26-Oct-01 1570 340 4260 2730 2225



### ICF International A-20 DRAFT – December 2006

### Appendix A



## Exhibit A-4. Pre-Excavation Soil Sampling Results for Pb - Primary Pb Smelter a

RESULTS (mg/kg) b, c

Quadrant 1 Quadrant 2 Quadrant 3 Quadrant 4 Pilot Analysis ID Sampling Date Property Average
(mg/kg) d

556 26-Oct-01 705 645 578 416 586

557 26-Oct-01 916 1100 394 662 768
558 26-Oct-01 671 389 352 438 463
559 26-Oct-01 539 616 576 824 639
560 26-Oct-01 4690 7370 7580 6990 6658

561 26-Oct-01 942 247 432 817 610
562 26-Oct-01 1570 1320 632 501 1006
563 26-Oct-01 993 772 1090 859 929
564 26-Oct-01 462 313 539 558 468
565 26-Oct-01 332 1000 2290 1750 1343
566 26-Oct-01 690 366 928 1210 799
567 26-Oct-01 478 298 1080 1310 792
568 26-Oct-01 917 475 466 1490 837
569 26-Oct-01 427 420 468 546 465

570 26-Oct-01 2170 2120 3600 4110 3000
571 26-Oct-01 1010 599 2870 2170 1662
572 26-Oct-01 2520 1380 2850 4000 2688 573 27-Sep-01 904 632 684 553 693

574 07-Nov-00 1800 5000 2000 1700 2625

576 08-Nov-00 1400 1600 2000 1000 1500

577 19-Jul-02 1977 1657 1620 1717 1743

578 02-Nov-01 241 292 195 111 210 579 24-Sep-01 1920 1170 1490 1530 1528

580 11-Oct-01

-- 492 1300 3420 1737
581 31-Oct-01 1170 795 618 764 837
582 30-Oct-01 1120 1770 1020 1100 1253

583 31-Oct-01 450 281 354 207 323
584 31-Oct-01 2550 1920 1170 774 1604

585 01-Nov-01 1880 2130 1550 1960 1880

586 02-Nov-01 1490 2260 1630 1320 1675

587 02-Nov-01 3710 1520 1440 2050 2180

588 02-Nov-01 460 489 102 294 336

589 02-Nov-01 5540 2410

-- -- 3975

590 02-Nov-01 267 396 143 165 243

591 02-Nov-01 1740 835 538 441 889

592 02-Nov-01 538 540 365 381 456

593 02-Nov-01 204 407 360 203 294

594 02-Nov-01 298 466 375 214 338

595 02-Nov-01 894 399 625 1090 752

596 02-Nov-01 4480 3670 2000 2440 3148

597 02-Nov-01 3020 1450 2350 1160 1995

598 02-Nov-01 1850 1620 1450 1640 1640

599 02-Nov-01 519 428 858 343 537

600 02-Nov-01 994 1360 1730 542 1157

601 02-Nov-01 2050 1990 2910 2540 2373

602 02-Nov-01 421 458 705 1100 671

603 02-Nov-01 622 844 3170 1400 1509

604 02-Nov-01 1230 1230 1250 1210 1230

605 02-Nov-01 515 321 520 293 412

606 02-Nov-01 539 703 849 729 705

607 02-Nov-01 761 937 839 1120 914

608 02-Nov-01 1470 1130 1110 956 1167



### ICF International A-21 DRAFT – December 2006

### Appendix A



## Exhibit A-4. Pre-Excavation Soil Sampling Results for Pb - Primary Pb Smelter a

RESULTS (mg/kg) b, c

Quadrant 1 Quadrant 2 Quadrant 3 Quadrant 4 Pilot Analysis ID Sampling Date Property Average
(mg/kg) d

609 02-Nov-01 1070 958 946 299 818

610 02-Nov-01 870 1160 1140 938 1027

611 02-Nov-01 1860 2090 2200 2100 2063

612 02-Nov-01 1160 4770 2280 1160 2343

613 02-Nov-01 1840 2680 1190 1170 1720

614 02-Nov-01 1380 1830 2170 794 1544

615 02-Nov-01 1030 1340 1420 1660 1363
616 31-Oct-01 941 446 531 256 544

617 31-Oct-01 1320 1300 1060 1500 1295

618 31-Oct-01 1020 635 1060 1210 981

619 05-Nov-01 179 181 283 571 304

620 05-Nov-01 1370 410 221 311 578

621 05-Nov-01 2200 2820 4800 1880 2925

622 05-Nov-01 815 1460 186 238 675

623 05-Nov-01 977 110 199 185 368

624 05-Nov-01 393 126 195 672 347

625 06-Nov-01 1680 1350 1020 868 1230

626 06-Nov-01 488 657 554 717 604

627 06-Nov-01 2650 2580 1300 1240 1943

628 06-Nov-01 822 745 633 901 775

629 06-Nov-01 1240 906 476 555 794

630 06-Nov-01 803 562 502 769 659

631 06-Nov-01 685 498

-- -- 592

632 06-Nov-01 441 355 1710 719 806

633 06-Nov-01 910 587 653 428 645

634 06-Nov-01 965 760 584 421 683

635 06-Nov-01 788 682 274 351 524

636 06-Nov-01 721 330 449 444 486

637 08-Nov-01 1360 1140 1220 1050 1193

638 08-Nov-01 492 682 605 367 537

639 08-Nov-01 725 706 647 696 694

640 08-Nov-01 346 368 122 170 252

641 08-Nov-01

-- 496 462 662 540

642 08-Nov-01 1370 2020 2270 1180 1710

643 08-Nov-01 644 944

-- -- 794

644 08-Nov-01 747 515

-- -- 631

645 06-Nov-01 596 702 1190 854 836

646 06-Nov-01 766 621 626 518 633

647 06-Nov-01 1040 846 413 882 795

648 06-Nov-01 480 760 795 1010 761

649 06-Nov-01 1060 631 532 862 771

650 06-Nov-01 384 600 491 566 510

651 06-Nov-01 522 690 565 490 567

652 06-Nov-01 619 704 587 623 633

653 06-Nov-01 256 180

-- 160 199

654 06-Nov-01 1450 1190 808 844 1073

655 06-Nov-01 1040 816 541 647 761

656 06-Nov-01 328 409 316 263 329

657 06-Nov-01 765 356 952 892 741

658 06-Nov-01 556 580 517 261 479

659 06-Nov-01 530 890 318 368 527

660 08-Nov-01 695 815 771 450 683



### ICF International A-22 DRAFT – December 2006

### Appendix A



## Exhibit A-4. Pre-Excavation Soil Sampling Results for Pb - Primary Pb Smelter a

RESULTS (mg/kg) b, c

Quadrant 1 Quadrant 2 Quadrant 3 Quadrant 4 Pilot Analysis ID Sampling Date Property Average
(mg/kg) d

661 08-Nov-01 1030 244 2320 3030 1656

662 08-Nov-01 920 1410 588 715 908

663 08-Nov-01 380 470 690 753 573

664 08-Nov-01 1030 776 677 534 754

665 08-Nov-01 2590 1880 2350 2780 2400

666 08-Nov-01 408 283

-- -- 346

667 08-Nov-01 822 874 831 895 856

668 08-Nov-01 1760 1050 1080 1500 1348

669 08-Nov-01 588 255 607 502 488
670 31-Oct-01 505 651 545 256 489
671 31-Oct-01 448 555 422 580 501

672 31-Oct-01 1210 3070 1380 2090 1938
673 31-Oct-01 1660 1580 1980 2340 1890

674 07-Nov-00 2400 1000 1400 2600 1850

675 17-Oct-01 525 657 584 533 575

676 06-Feb-02 1633 1440 1173 1210 1364

677 26-Nov-02 1197 1220 2857 3177 2113

678 26-Nov-02 1747 1210 3680

-- 2212

679 22-Feb-02 655 287 241 594 444

680 05-Mar-02 552 315 641 580 522

681 05-Mar-02 541 524 525 801 598

682 06-Mar-02 2247 1350 551 615 1191

683 06-Mar-02 552 634 650 740 644

684 04-Mar-02 4037 4443 4647 14300 6857

685 08-Mar-02 1487 916 538 568 877

686 07-Mar-02 585 1129 2103 3797 1904

687 20-Mar-02 466 1477 547 587 769

688 20-Mar-02 1009 2147 805 563 1131

689 20-Mar-02 827 1075 322 378 651

690 22-Mar-02 464 298 164 203 282

691 22-Mar-02 148 205 358 184 224

692 22-Mar-02 1627 1753 1370 1357 1527

693 22-Mar-02 1147 2900 2562 2217 2207
699 04-Oct-01 13600 4870 2190 8450 7278 703 15-Apr-02 474 295 599 286 414

706 22-Mar-02 6780 1070

-- -- 3925 707 15-Apr-02 961 906

-- -- 934 708 08-Aug-02 653 1040 693 443 707

709 19-Dec-02 754 469 347 332 476 710 15-Aug-03 730 672 773 1036 803 711 15-Apr-02 1360 1343 1183 2577 1616 714 15-Aug-03 853 1347 901 779 970

718 22-Jul-04 1363

-- -- -- 1363 723 08-Aug-02 967 536 590 999 773 725 15-Apr-02 1177 1920 1893 1327 1579

726 18-Jul-02 3200 2583 2253 2630 2667 728 08-May-02 482 328 422 538 443

729 30-Jan-02 329 411 311 282 333

730 31-Jan-02 209 433 236 295 293

731 08-Mar-02 183 196 211 132 181

732 08-Mar-02 462 340 212 243 314

733 31-Jan-02 231 191 190 165 194



### ICF International A-23 DRAFT – December 2006

### Appendix A



## Exhibit A-4. Pre-Excavation Soil Sampling Results for Pb - Primary Pb Smelter a

RESULTS (mg/kg) b, c

Quadrant 1 Quadrant 2 Quadrant 3 Quadrant 4 Pilot Analysis ID Sampling Date Property Average
(mg/kg) d

734 22-Mar-02 148 133 73 64 105

735 31-Jan-02 128 96 235 56 129

736 31-Jan-02 62 55 47 49 53

737 05-Feb-02 72 53 57 61 61

738 06-Jun-02 110 ND 130 ND 154 130 ND 85

739 06-Jun-02 140 ND 140 ND 150 ND 181 99

740 06-Jun-02 152 130 ND 159 120 ND 109

741 06-Jun-02 150 ND 140 ND 130 ND 192 101

742 06-Jun-02 185 159 170 ND 140 ND 125

743 06-Jun-02 140 ND 130 ND 202 140 ND 102

744 06-Jun-02 165 415 220 152 238

745 06-Jun-02 227 130 ND 140 ND 172 134

746 06-Jun-02 200 267 140 ND 130 ND 151

747 06-Jun-02 130 ND 154 120 ND 120 ND 85

748 10-Jun-02 120 ND 155 140 ND 352 159

749 10-Jun-02 397 142 287 140 ND 224

750 10-Jun-02 523 296 194 342 339

751 10-Jun-02 130 ND 149 157 141 128

752 10-Jun-02 130 ND 175 186 150 ND 125

753 10-Jun-02 150 ND 212 140 ND 140 ND 107

754 11-Jun-02 231 207 257 193 222

755 11-Jun-02 207 378 131 140 ND 197

756 11-Jun-02 283 201 224 140 ND 195

757 11-Jun-02 181 150 ND 140 ND 140 ND 99

758 11-Jun-02 140 ND 219 140 ND 140 ND 107

759 11-Jun-02 150 ND 140 ND 150 ND 140 ND 73

760 11-Jun-02 130 ND 140 ND 140 ND 120 ND 66

761 11-Jun-02 140 ND 250 150 ND 288 171

762 11-Jun-02 146 170 ND 130 ND 175 118

763 11-Jun-02 355 624 130 ND 140 ND 279

764 26-Jul-04 332 124 145 193 199

765 12-Jun-02 167 163 133 130 ND 132 766 31-May-02 159 169 120 ND 197 146 767 31-May-02 156 163 156 110 ND 133 768 31-May-02 469 118 163 110 ND 201 769 31-May-02 370 339 153 216 270 770 31-May-02 305 232 150 ND 128 185 771 31-May-02 264 173 168 178 196 772 31-May-02 465 279 140 132 254 773 31-May-02 686 576 288 171 430 774 31-May-02 120 ND 220 160 120 ND 125 775 31-May-02 256 299 131 107 198 776 31-May-02 120 ND 221 182 127 148 777 31-May-02 192 328 133 144 199 778 31-May-02 1120 398 436 393 587 779 31-May-02 224 232 110 ND 177 172 780 31-May-02 291 213 100 ND 257 203 781 31-May-02 238 215 187 214 214 782 31-May-02 178 142 110 ND 120 ND 109 783 31-May-02 253 268 110 ND 195 193

784 03-Jun-02 458 306 149 144 264

785 03-Jun-02 201 201 121 110 ND 145



### ICF International A-24 DRAFT – December 2006

### Appendix A



## Exhibit A-4. Pre-Excavation Soil Sampling Results for Pb - Primary Pb Smelter a

RESULTS (mg/kg) b, c

Quadrant 1 Quadrant 2 Quadrant 3 Quadrant 4 Pilot Analysis ID Sampling Date Property Average
(mg/kg) d

786 03-Jun-02 250 130 ND 120 ND 170 136

787 04-Jun-02 170 140 ND 130 ND 150 ND 95

788 04-Jun-02 147 166 130 ND 140 ND 112

789 04-Jun-02 140 ND 150 ND 150 ND 139 90

790 04-Jun-02 358 165 289 316 282

791 04-Jun-02 140 ND 150 ND 149 130 ND 90

792 05-Jun-02 130 ND 140 ND 140 ND 152 89

793 06-Jun-02 142 100 ND 226 338 189

794 11-Jun-02 183 144 150 ND 150 ND 119

796 19-Jun-02 205 182 282 135 201

797 20-Jun-02

-- 265 161 150 ND 167

798 12-Jun-02 182 158

-- 180 ND 143

799 22-Jun-02 213 150 ND 148 140 ND 127

800 19-Jun-02 140 ND 169 170 ND 203 132

801 20-Jun-02 288 300 170 ND 157 ND 188

802 20-Jun-02 150 ND 170 150 ND 150 ND 99

803 18-Jun-02 218 150 ND 165 150 ND 133

804 18-Jun-02 150 ND 150 ND 180 ND 180 ND 83

805 19-Jun-02 170 ND 140 ND 250 170 ND 123

806 18-Jun-02 170 ND 170 ND 150 ND 130 ND 78

807 18-Jun-02 187 150 ND 212 150 ND 137

808 19-Jun-02 204 147 ND 173 170 ND 134

809 19-Jun-02 184 189 228 148 187

810 18-Jun-02 245 217 346 371 295

811 19-Jun-02 140 ND 150 ND 151 160 114

812 20-Jun-02 231 189 150 ND 170 ND 145

813 18-Jun-02 173 183 140 ND 140 ND 124

814 19-Jun-02 257 163 ND 140 130 ND 136

815 19-Jun-02 184 150 ND 170 ND 193 134

816 20-Jun-02 588 270 272 365 374

817 20-Jun-02 197 263 150 ND 150 ND 153

818 27-Jun-02 203 274 207 199 221

819 27-Jun-02 140 ND 170 ND 170 ND 222 116

820 27-Jun-02 202 298 376 244 280

821 27-Jun-02 520 335 277 156 322

822 27-Jun-02 205 333 132 194 216

823 27-Jun-02 252 212 212 205 220

824 27-Jun-02 367 286 180 ND 194 234

825 27-Jun-02 221 249 192 192 214

826 27-Jun-02 221 191 153 163 182

827 26-Jun-02 269 180 199 150 ND 181

828 26-Jun-02 384 451 308 150 ND 305

829 26-Jun-02 144 188 161 130 ND 140

830 26-Jun-02 140 149 179 140 ND 135

831 26-Jun-02 130 ND 130 ND 130 ND 120 ND 64

832 26-Jun-02 304 110 ND 467 727 388

833 26-Jun-02 150 ND 150 ND 197 150 ND 106

834 03-Jul-02 2080 5770 1270 1490 2653

835 09-Jul-02 185 247 155 198 196

836 09-Jul-02 264 181 113 117 169

837 09-Jul-02 176 247 218 170 203

838 09-Jul-02 148 223 161 185 179



### ICF International A-25 DRAFT – December 2006

### Appendix A



## Exhibit A-4. Pre-Excavation Soil Sampling Results for Pb - Primary Pb Smelter a

RESULTS (mg/kg) b, c

Quadrant 1 Quadrant 2 Quadrant 3 Quadrant 4 Pilot Analysis ID Sampling Date Property Average
(mg/kg) d

839 03-Jul-02 52.7 129 93 218 123

840 03-Jul-02 207 118 169 272 192

841 03-Jul-02

-- 164 151 134 150

842 09-Jul-02 172 80 91 41 96

843 09-Jul-02 150 110 86 214 140

844 03-Jul-02 99 111 169 211 148

845 09-Jul-02 198 135 122 115 143

846 03-Jul-02 149 35 35 56 69

847 09-Jul-02 109 92 304 583 272

848 12-Jul-02 340 743 119 81 321

849 12-Jul-02 347 62 195 273 219

850 11-Jul-02 73 121 51 36 70

851 11-Jul-02 78 101 61 32 68

852 11-Jul-02 184 140 121 116 140

853 11-Jul-02 518 1210 156 252 534

854 11-Jul-02 343 653 199 107 326

855 11-Jul-02 418 483 305 361 392

856 11-Jul-02 236 164 82 161 161

857 11-Jul-02 330 371 164 208 268

858 11-Jul-02 191 83 207 150 158

859 12-Jul-02 104 107 140 96 112

860 12-Jul-02 223 230 284 226 241

861 12-Jul-02 193 233 167 236 207

862 11-Jul-02 228 261 50 81 155

863 11-Jul-02 154 173 111 173 153

864 11-Jul-02 25 56 85 71 59

865 17-Jul-02 248 277 197 251 243

866 12-Jul-02 96 341 141 128 177

867 12-Jul-02 129 417 120 85 188

868 15-Jul-02 159 277 223 165 206

869 15-Jul-02 274 299 206 188 242

870 15-Jul-02 298

-- 143 186 209

871 15-Jul-02 199 341 212 130 221

872 15-Jul-02 287 298 220 285 273

873 17-Jul-02 127 183 219 152 170

874 17-Jul-02 143 150 116 118 132

875 18-Jul-02 254 232 91 246 206

876 11-Jul-02 177 280 311 526 324

877 11-Jul-02 148 89 11 111 90

878 18-Jul-02 326 330 297 329 321

879 11-Jul-02 168 242 181 116 177

880 17-Jul-02 271 441 569 443 431

881 17-Jul-02 265 218 303 265 263

882 15-Jul-02 441 328 120 207 274

883 12-Jul-02 352 355 289 243 310

884 18-Jul-02 200 238 109 249 199

885 09-Jul-02 228 500 230 235 298

886 09-Jul-02 395 293 179 188 264

887 09-Jul-02 257 214 181 191 211

888 09-Jul-02 215 274 295 252 259

889 09-Jul-02 175 385 206 308 269

890 09-Jul-02 268 293 311 193 266



### ICF International A-26 DRAFT – December 2006

### Appendix A



## Exhibit A-4. Pre-Excavation Soil Sampling Results for Pb - Primary Pb Smelter a

RESULTS (mg/kg) b, c

Quadrant 1 Quadrant 2 Quadrant 3 Quadrant 4 Pilot Analysis ID Sampling Date Property Average
(mg/kg) d

891 12-Jul-02 342 370 387 374 368

892 12-Jul-02 436 454 359 244 373

893 12-Jul-02 303 230 287 310 283

894 12-Jul-02 498 342 314 548 426

895 16-Jul-02 307 244 147 122 205

896 16-Jul-02 156 192 70 98 129

897 16-Jul-02 86 133 16 90 81

898 15-Jul-02 174 187 186 155 176

899 15-Jul-02 194 211 190 163 190

900 15-Jul-02 133 108 15 186 111

901 15-Jul-02 129 69 235 164 149

902 16-Jul-02 185 201 104 135 156

903 11-Jul-02 170 83 82 137 118

904 18-Jul-02 100 179 248 289 204

905 11-Jul-02 177 207 243 130 189

906 15-Jul-02 239 217 196 183 209

907 15-Jul-02 134 265 234 190 206

908 16-Jul-02 133 206 171 130 160

909 16-Jul-02 229 162 140 84 154

910 15-Jul-02 33 127 128 194 121

911 16-Jul-02 116 184 192 155 162

912 16-Jul-02 55 163 121 186 131

913 16-Jul-02 243 225 141 227 209

914 18-Jul-02 296 276 295 235 276

915 18-Jul-02 348 361 213 173 274

916 18-Jul-02 515 635 175 281 402

917 18-Jul-02 513 369 287 295 366

918 18-Jul-02 337 208 207 293 261

919 18-Jul-02 181 165 391 214 238

920 18-Jul-02 363 361 287 367 345

921 18-Jul-02 446 360 221 343 343

922 03-Jul-02 1220 879 1480 621 1050

923 11-Jul-02 4810 3970

-- -- 4390

924 26-Jun-02 150 ND 120 ND 140 ND 140 ND 69 925 07-Aug-02 199 121 112 108 135 926 07-Aug-02 538 291 173 235 309 927 07-Aug-02 262 156 37 97 138 928 07-Aug-02 318 296 247 152 253 929 06-Aug-02 317 195 184 264 240 930 06-Aug-02 344 266 223 157 248 931 06-Aug-02 292 317 239 153 250 932 06-Aug-02 279 258 154 205 224 933 07-Aug-02 504 314 205 381 351 934 07-Aug-02 279 304 141 306 258 935 07-Aug-02 269 181 183 145 195 936 07-Aug-02 299 210 209 217 234 937 06-Aug-02 357 371 262 196 297 938 06-Aug-02 148 141 137 179 151 939 06-Aug-02 193 268 171 117 187 940 06-Aug-02 119 197 210 118 161 941 07-Aug-02 314 417 167 236 284 942 06-Aug-02 283 362 148 119 228



### ICF International A-27 DRAFT – December 2006

### Appendix A



## Exhibit A-4. Pre-Excavation Soil Sampling Results for Pb - Primary Pb Smelter a

RESULTS (mg/kg) b, c

Quadrant 1 Quadrant 2 Quadrant 3 Quadrant 4 Pilot Analysis ID Sampling Date Property Average
(mg/kg) d

943 06-Aug-02 368 196 148 225 234

944 26-Jun-02 150 ND 140 ND 137 140 ND 88

945 11-Jun-02 210 257 150 ND 133 169

946 12-Jun-02 140 ND 158 720 150 ND 256

947 05-Jun-02 150 ND 133 ND 154 140 ND 91 948 29-Aug-02 280 325 332 183 280 949 29-Aug-02 597 351 299 259 377 950 29-Aug-02 79.6 148 107 166 125 951 29-Aug-02 348 223 120 185 219 952 29-Aug-02 264 276 167 83.5 198 953 27-Aug-02 295 536 482 616 482 954 29-Aug-02 247 391 374 295 327 955 27-Aug-02 313 343 244 376 319 956 27-Aug-02 278 302 316 283 295 957 27-Aug-02 216 225 134 331 227 958 27-Aug-02 374 202 282 160 255 959 27-Aug-02 333 113 182 289 229 960 27-Aug-02 385 310 234 115 261 961 27-Aug-02 230 245 106 219 200 962 27-Aug-02 186 349 238 127 225 963 27-Aug-02 288 315 368 222 298 964 27-Aug-02 319 433 206 313 318 965 27-Aug-02 225 198 333 388 286 966 27-Aug-02 225 210 225 305 241 967 27-Aug-02 166 235 240 240 220 968 27-Aug-02 197 425 229 177 257 969 27-Aug-02 478 416 284 164 336 970 27-Aug-02 241 235 104 210 198 971 27-Aug-02 409 244 188 182 256 972 27-Aug-02 263 184 188 303 235 973 27-Aug-02 157 268 262 243 233 974 27-Aug-02 337 183 367 189 269 975 04-Sep-02 284 330 373 374 340 976 04-Sep-02 160 246 203 138 187 977 04-Sep-02 433 279 124 222 265 978 04-Sep-02 210 285 366 237 275 979 04-Sep-02 289 264 136 212 225 980 04-Sep-02 319 710 252 312 398 981 03-Sep-02 14 109 130 89 86 982 03-Sep-02 243 160 266 187 214 983 03-Sep-02 142 74 197 130 136 984 03-Sep-02 215 138 116 163 158 985 03-Sep-02 68 64 155 118 101 986 03-Sep-02 234 255 226 169 221 987 03-Sep-02 188 271 142 211 203 988 03-Sep-02 148 66 42 25 70 989 03-Sep-02 110 185 195 26 129 990 03-Sep-02 201 182 260 195 210 991 03-Sep-02 25

-- 135 223 128 992 30-Aug-02 207 233 229 125 199 993 30-Aug-02 95 149 130 106 120 994 30-Aug-02 239 171 234 202 212



### ICF International A-28 DRAFT – December 2006

### Appendix A



## Exhibit A-4. Pre-Excavation Soil Sampling Results for Pb - Primary Pb Smelter a

RESULTS (mg/kg) b, c

Quadrant 1 Quadrant 2 Quadrant 3 Quadrant 4 Pilot Analysis ID Sampling Date Property Average
(mg/kg) d

995 30-Aug-02 276 215 152 298 235 996 30-Aug-02 464 230 213 312 305 997 30-Aug-02 99 13 50 184 87 998 30-Aug-02 62 88 192 218 140 999 11-Sep-02 229 350 145 184 227 1000 12-Sep-02 311 513 370 231 356 1001 11-Sep-02 117 187 146 123 143 1002 12-Sep-02 251 200 121 59 158 1003 12-Sep-02 167 201 164 108 160 1004 12-Sep-02 342 168 128 114 188 1005 12-Sep-02 237 157 74 124 148 1006 12-Sep-02 203 160 177 55 149 1007 12-Sep-02 602 309 329 185 356 1008 12-Sep-02 192 224 262 188 217 1009 12-Sep-02 104 141 172 272 172 1010 10-Sep-02 236 193 139 108 169 1011 11-Sep-02 253 179 287 318 259 1012 11-Sep-02 84 260 146 119 152 1013 11-Sep-02 64 123 19 81 72 1014 11-Sep-02 156 170 111 139 144 1015 10-Sep-02 256 222 207 95 195 1016 06-Sep-02 149 133 36 120 110 1017 11-Sep-02 198 215 98 157 167 1018 10-Sep-02 137 58 40 122 89 1019 10-Sep-02 197 203 221 245 217 1020 11-Sep-02

-- 92 219 121 144

1021 15-Jul-02 170 114 208 175 167 1022 06-Sep-02 206 160 230 138 184 1023 30-Aug-02 158 169 165 174 167 1024 06-Sep-02 355 381 170 186 273 1025 06-Sep-02 37 41 72 96 62 1026 30-Aug-02 108 60 155 115 110 1027 30-Aug-02 24 70 82 137 78 1028 06-Sep-02 48 115 113 48 81 1029 30-Aug-02 131 177 126 174 152 1030 30-Aug-02 212 199 128 163 176 1031 30-Aug-02 215 7 51 129 101 1032 06-Sep-02 123 123 114 180 135 1033 06-Sep-02 10 89 131 137 92 1034 06-Sep-02 27 122 159 156 116 1035 06-Sep-02 125 119 136 26 102 1036 30-Aug-02 504 389 173 282 337 1037 06-Sep-02 175 285 139 175 194 1038 06-Sep-02 92 151 175 241 165 1039 06-Sep-02 170 300 241 228 235 1040 10-Sep-02 113 106 268 174 165 1041 10-Sep-02 118 199 192 56 141 1042 10-Sep-02 314 166 185 335 250 1043 11-Sep-02 175 166 299 206 212 1044 10-Sep-02 221 170 65 152 152 1045 11-Sep-02 783 59 125 45 253 1046 11-Sep-02 107 264 133 191 174



### ICF International A-29 DRAFT – December 2006

### Appendix A



## Exhibit A-4. Pre-Excavation Soil Sampling Results for Pb - Primary Pb Smelter a

RESULTS (mg/kg) b, c

Quadrant 1 Quadrant 2 Quadrant 3 Quadrant 4 Pilot Analysis ID Sampling Date Property Average
(mg/kg) d

1047 11-Sep-02 145 33

-- 67 82 1048 10-Sep-02 194 281 215 343 258 1049 11-Sep-02 64 27 43 107 60 1050 10-Sep-02 204 239 153 224 205 1051 11-Sep-02 135 155 119 137 137 1052 10-Sep-02 169 216 210

-- 198 1053 11-Sep-02 326 267 172 304 267 1054 10-Sep-02 122 152 170 106 138 1055 10-Sep-02 221 200 80 150 163 1056 10-Sep-02 215 217 136 224 198 1057 10-Sep-02 151 237 91 206 171 1058 10-Sep-02 225 129 183 207 186 1059 10-Sep-02 202 170 200 247 205 1060 10-Sep-02 133 58 143 101 109 1061 10-Sep-02 114 173 178 96 140 1062 10-Sep-02 74 37 101 140 88
1063 16-Oct-02 122 92 98 142 114
1064 30-Oct-02 86 42 49 74 63
1065 30-Oct-02 85 92 117 77 93

1066 12-Mar-03 91.4 101.6 77 75.6 86

1067 11-Mar-03 1033 1070 506

-- 870

1068 19-Jun-03 717 542 162

-- 474

1069 15-Jul-03 2137 1230 1203 1217 1447 1074 07-Aug-03 859 787 530 810 747

1075 08-Nov-01 1760 1050 1080 1500 1348
1076 15-Oct-01 982 541 791 444 690

1079 02-Nov-01 16300 2800 11300 6290 9173

1080 08-Nov-01 2110 6090 606 680 2372

1081 02-Nov-01 5260 10000 8750 6390 7600 1082 11-Apr-03 100 133

-- -- 117

1084 02-Nov-01 5680 1580 4460 1160 3220

1086 08-Nov-01 606

-- -- -- 606 1088 01-Apr-04 935 814 781 715 811

1090 22-Jul-04

-- -- -- 632 632

a 

### Data were obtained from the EPA Region 7 (2006).

b 

### A value qualified with an "ND" represents a non-detect. The value presented is the detection limit. For the purpose of calculating the property average, one-half the detection limit will be used as the value for non-detects.

c 

### "--" indicates that no sample was collected for that quadrant.

d 

### Not provided by EPA Region 7. Averages were calculated by ICF.



### ICF International A-30 DRAFT – December 2006

### Appendix A

RESULTS (mg/kg) b

Quadrant 1 Quadrant 2 Quadrant 3 Quadrant 4

141 17-Jun-02 944 523 1170 587 806

142 16-Jun-03 157 215 212 237 205

143 16-Jun-03 197 265 207 264 233 145 03-Apr-02 880 598 445 493 604 146 19-May-03 206 146 270 309 233 147 03-Apr-02 368 349 201 247 291 148 21-May-02 193 296 208 290 247 149 16-Apr-02 1370 612 462 308 688

150 16-Dec-02 198 225 -- 260 228

151 14-Jan-02 281 463 483 279 377

153 15-Jun-04 280 295 218 127 230

154 17-Jan-02 1550 1457 764 786 1139

155 03-Jun-03 109 288 283 378 265

156 10-Dec-02 540 332 195 505 393

157 08-Jul-02 778 895 876 353 726

158 19-Jan-02 675 288 455 539 489

159 27-Jun-02 280 193 217 196 222

160 26-Jun-02 398 216 188 232 259

161 28-Jun-02 490 1297 502 534 706

162 12-Jul-02 2630 2137 1400 766 1733 163 13-May-02 1898 2946 2078 1688 2153

172 21-Oct-02 466 189 769 1010 609

175 28-Mar-02 549 104 391 601 411

176 22-Jan-02 1217 687 1018 633 889

177 13-Nov-02 690 1001 1021 860 893

178 27-Nov-02 307 153 71 48 145

179 05-Nov-01 334 397 447 254 358

180 03-Jun-02 572 240 285 288 346

181 20-Nov-01 907 401 771 603 671

182 14-Dec-01 1347 1273 911 697 1057

183 09-Nov-01 560 834 659 562 654

184 07-Feb-02 716 167 475 321 420 185 25-Apr-02 125 208 127 123 146

191 10-Mar-04 -- -- 500 129 315

196 07-Dec-01 643 981 760 243 657

197 09-Jan-02 872 825 680 847 806

200 27-Feb-02 155 -- 311 -- 233

207 11-Jan-02 978 890 485 648 750

208 07-Oct-02 499 714 490 1057 690
211 07-Oct-03 794 857 693 672 754

212 23-Jan-02 -- -- -- 568 568 213 29-Aug-02 567 684 457 645 588

214 05-Mar-02 564 517 1076 496 663 215 22-Aug-03 647 386 487 762 571

216 23-Mar-04 358 661 400 249 417 217 11-Apr-03 627 473 553 271 481 218 16-Sep-03 473 300 294 445 378 220 19-Aug-03 451 475 592 394 478

222 15-Mar-02 139 85 152 166 136

225 02-Jun-04 104 110 286 186 172 226 20-May-02 -- -- -- 155 155

230 15-Feb-02 -- 119 190 -- 155

231 21-Mar-02 203 415 429 281 332 

## Exhibit A-5. Post-Excavation Soil Sampling Results for Pb - Primary Pb Smelter a

Pilot Analysis

ID Sampling Date Property Average
(mg/kg) c



### ICF International A-31 DRAFT – December 2006

### Appendix A

RESULTS (mg/kg) b

Quadrant 1 Quadrant 2 Quadrant 3 Quadrant 4 

## Exhibit A-5. Post-Excavation Soil Sampling Results for Pb - Primary Pb Smelter a

Pilot Analysis

ID Sampling Date Property Average
(mg/kg) c

232 25-Jun-02 520 840 946 275 645

233 13-Feb-02 578 238 357 285 365

234 13-Nov-02 74 669 369 254 342 235 06-Aug-03 440 532 701 485 540 237 21-Aug-03 454 551 589 641 559

238 17-Oct-02 2693 -- 1095 1100 1629

239 04-Mar-02 1400 690 976 1487 1138 240 15-Apr-02 488 451 798 220 489 241 07-May-04 342 270 -- -- 306 242 23-Aug-04 49 58 168 271 137 246 12-Aug-04 261 258 -- 336 285 251 26-Aug-02 678 813 793 246 633

253 17-Dec-03 599 652 411 563 556 254 16-Sep-03 178 668 557 400 451 255 16-Sep-03 922 463 446 543 594 256 19-Sep-03 536 1040 679 1663 980
257 17-Oct-01 523 660 294 333 453 258 26-Sep-03 907 972 976 689 886 259 29-Aug-02 615 376 527 656 544

260 16-Oct-03 292 1143 705 213 588

261 11-Mar-02 246 244 721 849 515

262 16-Jan-02 395 1110 913 822 810
263 15-Oct-01 1197 497 603 1243 885 264 18-Sep-03 790 345 1097 860 773

265 28-Jan-02 1083 939 694 571 822
266 02-Oct-03 1563 653 871 747 959

267 22-Oct-03 1620 1830 1123 1280 1463 268 26-Sep-03 1087 463 922 842 829
269 07-Oct-03 1087 1026 940 702 939

272 16-Jan-04 248 444 432 450 394

273 14-Mar-02 -- -- 165 -- 165 277 01-Apr-04 205 251 -- 181 212 279 19-May-03 116 203 252 321 223

280 14-Jul-04 221 165 264 269 230

282 19-Jun-02 1640 3900 1270 1227 2009

283 21-Jun-02 1487 356 597 605 761

284 15-Mar-04 355 474 209 296 334

285 15-Mar-04 355 474 209 296 334 287 15-May-02 1990 1815 1550 1432 1697

295 18-Jul-02 1900 2953 1093 895 1710

299 24-Jul-02 -- 2930 850 195 1325 300 09-Aug-02 1260 1150 310 1033 938

301 18-Jul-02 239 162 235 210 212

302 07-Nov-01 232 270 64 136 176

303 15-Mar-04 660 277 -- 214 384 304 08-Apr-04 326 538 -- -- 432
306 14-Oct-02 1290 492 192 223 549 308 15-Aug-03 1011 532 784 444 693 311 10-Aug-04 568 272 417 291 387

314 28-Mar-02 575 430 -- -- 503 316 06-May-04 471 444 129 536 395 319 20-Apr-04 927 551 -- -- 739 320 04-May-04 727 811 -- -- 769



### ICF International A-32 DRAFT – December 2006

### Appendix A

RESULTS (mg/kg) b

Quadrant 1 Quadrant 2 Quadrant 3 Quadrant 4 

## Exhibit A-5. Post-Excavation Soil Sampling Results for Pb - Primary Pb Smelter a

Pilot Analysis

ID Sampling Date Property Average
(mg/kg) c
321 01-Apr-02 402 604 645 1107 690 323 26-Sep-02 1536 1540 556 334 992 324 19-Aug-02 111 539 394 317 340 325 09-Apr-04 2757 -- -- -- 2757

326 07-Jun-02 1340 1313 884 1253 1198

327 07-Jun-02 921 1011 2223 373 1132

328 06-Jun-02 2047 648 1663 756 1279

330 24-Jan-02 220 195 146 234 199

331 24-Jan-02 416 731 724 360 558

337 01-Jul-03 623 833 509 467 608

339 08-Feb-02 147 259 124 80 153

340 17-Jan-02 823 1277 944 -- 1015

341 21-Nov-02 371 1530 310 565 694 344 01-Apr-02 958 -- 1058 6177 2731

347 20-Dec-01 -- 113 88 -- 101
353 18-Oct-02 100 210 152 317 195

354 23-Feb-04 -- 625 147 411 394

355 08-Feb-02 -- 130 193 179 167 357 30-Apr-04 291 393 369 262 329 358 30-Apr-04 369 490 -- 576 478 360 04-May-04 240 142 335 -- 239 361 22-Apr-04 629 233 568 -- 477

363 30-Jun-04 331 596 482 -- 470

364 02-Jul-04 393 517 563 -- 491

365 08-Jun-04 331 684 173 426 404
371 09-Oct-02 96 241 84 60 120

384 25-Mar-04 -- -- 544 153 349

385 20-Dec-01 -- 60 -- 79 70

386 20-Feb-04 1274 837 1267 1072 1113

387 27-Feb-04 1253 1001 838 -- 1031 388 22-Aug-02 292 123 267 425 277

389 07-Mar-02 304 324 239 254 280 390 04-Aug-03 684 1167 519 530 725

391 29-Jan-02 706 709 1220 752 847

392 08-Nov-02 401 187 191 376 289

395 07-Mar-02 344 435 550 449 445 396 11-Sep-03 401 687 792 317 549

398 18-Feb-02 -- -- -- 160 160 400 21-May-04 155 210 -- 174 180

403 28-Feb-02 445 209 149 376 295

404 19-Jul-02 1113 408 -- -- 761

405 29-Jul-03 356 885 589 341 543

406 19-Jul-02 229 -- -- -- 229

407 22-Feb-02 318 312 -- -- 315

408 03-Jul-02 339 164 320 308 283 410 10-Apr-02 653 862 1490 532 884 411 15-Aug-03 632 564 564 353 528 412 13-Aug-03 417 442 719 456 509

413 29-Jan-02 382 546 267 343 385 416 12-Apr-04 398 2000 -- -- 1199

418 17-Jun-02 186 154 -- -- 170

419 17-Jun-02 -- 263 -- 169 216 422 04-May-04 97 163 -- 108 123



### ICF International A-33 DRAFT – December 2006

### Appendix A

RESULTS (mg/kg) b

Quadrant 1 Quadrant 2 Quadrant 3 Quadrant 4 

## Exhibit A-5. Post-Excavation Soil Sampling Results for Pb - Primary Pb Smelter a

Pilot Analysis

ID Sampling Date Property Average
(mg/kg) c

425 21-Feb-02 287 285 112 146 208

426 18-Jan-02 1180 1913 987 710 1198

428 29-Jul-03 525 148 159 237 267 430 30-Apr-03 704 469 282 286 435

431 10-Dec-02 478 1527 114 -- 706

432 02-Jun-03 118 234 220 -- 191

433 20-Jun-02 64 532 1423 4100 1530

435 10-Jul-02 2253 592 1807 835 1372

436 10-Jul-02 872 3163 -- -- 2018 440 09-Aug-02 880 328 1380 1650 1060

442 16-Feb-04 859 111 768 608 587

444 18-Feb-02 224 321 488 294 332 445 27-Apr-04 568 365 820 942 674 446 29-Aug-02 1372 1073 596 884 981

447 13-Mar-02 178 222 -- 89 163

448 20-Dec-02 315 616 366 165 366 449 27-Apr-04 162 304 227 258 238 450 13-May-02 -- 130 176 163 156 451 14-Apr-04 266 209 235 222 233

454 13-Feb-02 274 191 206 63 184 456 18-Aug-04 184 123 212 175 174 458 29-Apr-04 -- -- 228 170 199 468 22-Apr-04 264 238 323 -- 275

470 29-Jul-04 1550 439 -- 305 765

477 23-Oct-02 1070 733 1210 2233 1312

484 16-Jan-02 395 1110 913 822 810

485 22-Jul-04 628 713 961 688 748 486 24-Sep-03 734 963 779 791 817

491 02-Jun-04 358 -- 508 395 420 492 30-Apr-04 164 257 446 231 275

493 05-Feb-02 72 159 129 144 126

495 25-Jun-04 303 304 418 328 338

496 04-Jun-03 287 279 -- 204 257 497 22-Aug-02 148 60 429 -- 212 498 09-Aug-02 1042 686 608 482 705

500 18-Feb-04 -- -- 310 -- 310

501 23-Jan-04 1930 675 1180 811 1149

503 25-Feb-04 1323 797 -- -- 1060

504 13-Jun-02 353 177 83 174 197 511 03-Apr-02 863 1773 204 209 762

512 15-Nov-01 688 752 777 567 696

513 15-Nov-01 736 824 743 245 637

514 24-Jan-02 209 605 233 840 472 517 06-May-04 604 584 471 439 525

518 10-Jun-04 380 493 313 602 447

520 23-Feb-04 224 -- -- -- 224

526 16-Jul-02 1007 891 1117 944 990 528 03-Aug-04 -- -- 130 -- 130

531 11-Jan-02 567 -- -- -- 567

532 10-Mar-04 481 1840 114 244 670 535 05-May-03 274 148 283 118 206 540 10-Sep-03 307 502 1018 568 599

542 13-Jan-04 762 357 426 318 466



### ICF International A-34 DRAFT – December 2006

### Appendix A

RESULTS (mg/kg) b

Quadrant 1 Quadrant 2 Quadrant 3 Quadrant 4 

## Exhibit A-5. Post-Excavation Soil Sampling Results for Pb - Primary Pb Smelter a

Pilot Analysis

ID Sampling Date Property Average
(mg/kg) c
544 08-May-03 479 223 681 -- 461 557 27-Aug-03 878 789 467 523 664

558 15-Feb-02 53 -- -- 90 72

564 11-Feb-02 57 335 114 55 140
573 30-Oct-01 273 236 214 202 231
574 09-Oct-01 614 1057 1363 507 885 575 21-Sep-01 1670 1947 186 905 1177 576 26-Sep-01 1160 654 512 619 736 577 30-Sep-02 1523 1187 469 594 943
579 02-Oct-01 1180 937 343 382 711
580 17-Oct-02 2693 -- 1095 1100 1629

581 12-Mar-02 731 403 90 192 354

584 23-Feb-04 436 1027 153 -- 539

585 03-Dec-03 371 669 632 574 562

588 11-Feb-02 202 159 -- -- 181

593 11-Feb-02 -- 123 -- -- 123

596 20-Feb-04 796 235 -- -- 516 597 15-Apr-03 1257 854 618 893 906 600 09-Aug-02 264 866 -- -- 565

601 22-Jul-02 1333 445 848 2010 1159

604 13-Oct-03 809 380 719 680 647 605 03-Aug-04 378 -- -- -- 378 606 03-Aug-04 -- 333 -- -- 333

608 06-Mar-02 847 372 764 882 716

609 24-Jun-04 435 402 827 -- 555

612 07-Mar-02 304 324 239 254 280 613 15-Aug-02 432 476 130 661 425 614 04-Aug-03 1753 432 904 427 879 615 08-Sep-03 641 802 268 548 565

617 17-Oct-02 654 1247 535 781 804

622 11-Feb-02 553 878 -- -- 716

625 21-Mar-02 182 434 425 651 423

626 29-Jan-02 220 217 172 221 208

627 28-Jan-02 989 511 192 2177 967 628 07-Aug-03 536 288 238 440 376

629 28-Mar-02 506 351 248 219 331 632 06-Apr-04 100 -- 91 155 115 635 21-May-03 182 341 -- -- 262

636 01-Jul-02 168 -- 92 154 138

637 19-Dec-02 245 277 1497 320 585

642 20-Jun-03 395 881 739 425 610

644 29-Jul-03 338 399 152 272 290

655 08-Jun-04 623 473 975 769 710 657 06-May-04 151 -- 279 228 219 658 16-Aug-04 70 220 243 -- 178 660 05-Sep-03 126 165 297 149 184

663 11-Mar-02 -- 102 244 218 188 664 15-Apr-04 431 420 325 305 370 668 15-Aug-03 716 753 606 409 621 670 12-Apr-02 388 492 519 372 443

672 12-Dec-02 623 779 289 375 517

674 01-Oct-01 627 854 1413 -- 965

676 19-Dec-02 589 277 273 771 478



### ICF International A-35 DRAFT – December 2006

### Appendix A

RESULTS (mg/kg) b

Quadrant 1 Quadrant 2 Quadrant 3 Quadrant 4 

## Exhibit A-5. Post-Excavation Soil Sampling Results for Pb - Primary Pb Smelter a

Pilot Analysis

ID Sampling Date Property Average
(mg/kg) c

677 28-Jun-02 922 605 1253 2840 1405

678 28-Jun-02 1247 897 1025 -- 1056 681 26-Apr-04 343 214 381 377 329

684 17-Jul-03 63 388 209 193 213 688 14-May-03 458 703 560 618 585

692 13-Oct-03 1147 930 -- -- 1039
693 08-Oct-02 1004 802 1683 1513 1251 699 13-May-02 1898 2800 2055 1688 2110
711 02-Oct-02 566 533 427 301 457 714 08-Sep-03 1010 307 740 363 605 718 03-Aug-04 628 -- -- -- 628 725 09-Aug-04 669 810 779 782 760
726 15-Oct-02 402 300 429 496 407

729 14-Mar-02 192 237 -- 131 187

795 11-Jul-02 1273 626 1207 1293 1100 820 06-May-04 135 186 -- -- 161

821 23-Dec-02 180 -- -- -- 180

832 16-Jan-03 -- -- 77 101 89

847 09-Jan-03 -- -- -- 76 76 853 13-May-04 84 146 -- -- 115

889 09-Jan-03 -- 419 -- -- 419

996 10-Jan-03 -- 91 -- -- 91 1074 22-Aug-03 317 307 635 650 477 1075 15-Aug-03 575 607 489 476 537 1076 15-Aug-03 433 576 723 -- 577 1079 30-May-02 81 95 -- -- 88 1080 26-Sep-02 -- 514 -- -- 514 1081 22-May-02 361 109 741 768 495

1083 11-Jul-03 102 685 309 194 323

1084 26-Jul-02 856 2150 462 -- 1156 1087 05-Apr-04 1723 843 667 863 1024 1088 19-Apr-04 380 197 263 295 284 1090 03-Aug-04 -- -- -- 463 463

a 

### Data were obtained from EPA Region 7 (2006).

b 

### "--" indicates that no sample was collected for that quadrant.

c 

### Not provided by EPA Region 7. Averages were calculated by ICF.



### ICF International A-36 DRAFT – December 2006

### Appendix A

184 16-Apr-02 62 69 58 ND 57 ND
184 21-May-02 54 67 61 49 ND

184 24-Jun-02 92 69 67 48 ND

184 23-Jul-02 48 48 ND 58 49 ND
184 23-Aug-02 86 60 47 ND 50
579 16-Apr-02 109 125 105 79
579 21-May-02 95 101 75 55

579 21-Jun-02 92 92 137 109

579 23-Jul-02 93 87 67 61
579 22-Aug-02 80 157 83 100 579 23-Sep-02 69 92 67 66

151 11-Feb-02 67 ND 84 65 ND 63 ND

151 14-Mar-02 56 60 ND 75 56 ND
151 16-Apr-02 58 ND 62 ND 60 ND 64
151 22-May-02 51 ND 50 ND 54 50 ND

151 24-Jun-02 54 ND 64 58 49 ND

151 22-Jul-02 56 54 66 57
151 23-Aug-02 62 58 50 47 ND 151 25-Sep-02 64 52 ND 64 59

151 07-Nov-02 60 63 41 55

151 10-Dec-02 50 49 53 53

151 15-Jan-03 53 ND 53 ND 61 55

151 12-Mar-03 53 48 57 57

151 20-Jun-03 142 59 49 ND 70 151 22-Sep-03 74 127 70 61

151 22-Dec-03 49.7 52.8 37.5 43.5

151 22-Mar-04 53 ND 92 85.9 83.6

151 21-Jun-04 67 75.2 50.8 67.6 151 23-Sep-04 96.8 100.3 38.2 60

151 16-Dec-04 43 ND 69.8 51.4 58.8

151 28-Mar-05 127 146 85 86

151 07-Jul-05 83.6 106.1 79 85

151 03-Oct-05 81 83 67 139
151 02-May-06 59 83 67 101
493 17-Apr-02 47 ND 53 ND 49 ND 51 ND
493 21-May-02 48 ND 60 44 ND 45 ND

493 24-Jun-02 53 ND 63 60 51 ND

493 24-Jul-02 45 ND 46 ND 41 ND 41 ND
493 22-Aug-02 45 ND 38 ND 38 55 493 25-Sep-02 45 ND 58 45 ND 42 ND

493 07-Nov-02 49 54 ND 57 ND 60

493 09-Dec-02 51 ND 50 ND 53 ND 51

493 21-Jan-03 72 46 ND 45 50 ND

493 14-Mar-03 37 ND 43 47 53

340 06-Feb-02 59 ND 58 ND 61 55 ND

340 14-Mar-02 74 56 ND 82 69
340 16-Apr-02 53 ND 66 59 397
340 22-May-02 45 ND 47 ND 54 ND 48

340 24-Jun-02 54 54 ND 55 62 ND

340 24-Jul-02 54 47 ND 68 51 

## Exhibit A-6. Recontamination Soil Sampling Results for Pb - Primary Pb Smelter a

RESULTS (mg/kg) b, c

Quadrant 1 Quadrant 2 Quadrant 3 Quadrant 4 Pilot Analysis ID Sampling Date



### ICF International A-37 DRAFT – December 2006

### Appendix A



## Exhibit A-6. Recontamination Soil Sampling Results for Pb - Primary Pb Smelter a

RESULTS (mg/kg) b, c

Quadrant 1 Quadrant 2 Quadrant 3 Quadrant 4 Pilot Analysis ID Sampling Date 340 26-Aug-02 49 ND 47 80 66 340 24-Sep-02 48 ND 53 65 65

340 07-Nov-02 44 ND 50 ND 56 99

340 10-Dec-02 63 69 67 111

340 17-Mar-03 74 58 80 126

340 23-Jun-03 63 62 101 106 340 23-Sep-03 117 96 105 91

340 22-Dec-03 66 55 119 124

340 22-Mar-04 67.4 91.9 199 91.7

340 22-Jun-04 77.1 78.8 153 163 340 23-Sep-04 134.7 116 141.6 324

340 16-Dec-04 107.1 128.9 163.3 223

340 29-Mar-05 97 161 107 155

340 08-Jul-05 214 97 146 156

340 03-Oct-05 187 172 258 302
340 02-May-06 161 261 201 300

197 11-Feb-02 73 62 ND 63 ND 69 ND

197 14-Mar-02 97 74 66 ND 65
197 17-Apr-02 96 51 64 ND 48 ND
197 21-May-02 100 60 54 48 ND

197 24-Jun-02 74 95 65 172

197 22-Jul-02 183 61 75 51 ND
197 23-Aug-02 89 62 60 55 197 24-Sep-02 164 61 155 53

197 07-Nov-02 130 81 208 123

197 10-Dec-02 281 127 302 172

197 17-Mar-03 78 103 179 82

197 23-Jun-03 76 133 69 67 197 23-Sep-03 104 122 130 66

197 22-Dec-03 81 131 184 105

197 22-Mar-04 120 188 363 108

197 21-Jun-04 132 152.7 124 76.7 197 23-Sep-04 145.4 261.7 332.8 124

197 16-Dec-04 201.3 63.7 130.1 69.2

197 30-Mar-05 283 235 145 112

197 07-Jul-05 143 252 209 91

197 04-Oct-05 186 182 145 130
197 02-May-06 148 205 156 181
531 17-Apr-02 63 ND 65 ND 67 ND 57 ND
531 22-May-02 54 ND 58 56 ND 54 ND

531 24-Jun-02 50 ND 50 ND 51 53

531 22-Jul-02 164 80 52 ND 41 ND
531 23-Aug-02 73 53 58 49 ND 531 24-Sep-02 51 65 43 46

531 07-Nov-02 85 50 53 ND 46 ND

531 10-Dec-02 53 44 ND 44 ND 41 ND

531 15-Jan-03 63 56 ND 59 58 ND

531 12-Mar-03 62 94 38 ND 47

531 20-Jun-03 48 67 83 60 531 23-Sep-03 64 60 68 77



### ICF International A-38 DRAFT – December 2006

### Appendix A



## Exhibit A-6. Recontamination Soil Sampling Results for Pb - Primary Pb Smelter a

RESULTS (mg/kg) b, c

Quadrant 1 Quadrant 2 Quadrant 3 Quadrant 4 Pilot Analysis ID Sampling Date

531 22-Dec-03 57.6 61.5 41.9 35

531 22-Mar-04 63.8 64.6 56 67.6

531 21-Jun-04 56.1 92.5 55.9 50.6 531 23-Sep-04 192.3 123.3 90.9 67.9

531 16-Dec-04 179.7 131 92.1 72.1

531 28-Mar-05 127 103 67 99

531 07-Jul-05 73 130 128 75

531 04-Oct-05 101 111 57 ND 65
531 02-May-06 47 87 65 46 ND

626 11-Feb-02 65 ND 64 ND 56 ND 71

626 14-Mar-02 55 ND 58 ND 98 69
626 16-Apr-02 60 58 ND 69 ND 56 ND
626 20-May-02 52 ND 65 51 47 ND

626 24-Jun-02 74 48 ND 49 ND 51 ND

626 23-Jul-02 47 41 ND 43 40 ND
626 23-Aug-02 45 ND 45 ND 48 41 ND 626 24-Sep-02 45 ND 45 ND 59 49

626 30-Oct-02 43 ND 50 ND 40 ND 48 ND

626 10-Dec-02 43 ND 50 50 49 ND

626 15-Jan-03 52 48 ND 50 53

626 17-Mar-03 60 53 ND 58 ND 45 ND
212 20-May-02 61 49 ND 90 116

212 21-Jun-02 77 323 103 66

212 23-Jul-02 56 141 127 117
212 22-Aug-02 54 75 116 116 212 23-Sep-02 53 57 113 88

212 01-Nov-02 65 63 101 88

212 12-Dec-02 78 77 84 76

212 14-Mar-03 66 122 88 121

212 23-Jun-03 112 61 156 115 212 22-Sep-03 131 95 242 145

212 22-Dec-03 87 122 100 147

212 22-Mar-04 56.6 69.7 187 77 ND

212 21-Jun-04 131 93.6 175 150 212 23-Sep-04 88.5 201.7 696.3 235.7

212 16-Dec-04 87.2 117 406.3 153

212 29-Mar-05 99 94 210 119

212 07-Jul-05 147 178 461 215

212 04-Oct-05 98 157 412 214
212 01-May-06 109 185 271 229
454 17-Apr-02 52 ND 53 ND 51 ND 50 ND
454 20-May-02 48 ND 44 ND 50 ND 46 ND

454 24-Jun-02 95 42 ND 49 ND 49 ND

454 24-Jul-02 50 ND 40 ND 48 ND 57
454 22-Aug-02 46 49 ND 45 ND 46 ND 454 25-Sep-02 45 ND 46 ND 46 ND 48 ND

454 07-Nov-02 56 52 ND 43 ND 52 ND

454 09-Dec-02 53 ND 42 ND 52 ND 49 ND

454 13-Jan-03 47 53 59 54

454 14-Mar-03 43 34 ND 39 38 ND



### ICF International A-39 DRAFT – December 2006

### Appendix A



## Exhibit A-6. Recontamination Soil Sampling Results for Pb - Primary Pb Smelter a

RESULTS (mg/kg) b, c

Quadrant 1 Quadrant 2 Quadrant 3 Quadrant 4 Pilot Analysis ID Sampling Date
239 20-May-02 89 ND 63 54 ND 71

239 25-Jun-02 284 51 44 ND 48

239 23-Jul-02 52 50 42 ND 43 ND
239 26-Aug-02 208 87 45 ND 89 239 23-Sep-02 254 64 48 50

239 07-Nov-02 159 55 56 63 ND

239 10-Dec-02 160 104 70 63

239 17-Mar-03 104 93 59 52
444 16-Apr-02 58 ND 65 55 ND 60 ND
444 21-May-02 44 ND 50 ND 49 50 ND

444 25-Jun-02 118 56 47 ND 45 ND

444 24-Jul-02 61 51 62 69
444 23-Aug-02 56 49 ND 47 98 444 25-Sep-02 133 ND 130 ND 137 ND 119 ND

444 07-Nov-02 50 ND 54 ND 52 ND 95

444 12-Dec-02 47 ND 52 58 54

444 20-Jan-03 57 48 79 63

444 14-Mar-03 76 47 57 62

444 23-Jun-03 3187 43 ND 84 131 444 22-Sep-03 60 46 51 83

444 22-Dec-03 513 57.2 54 107

444 22-Mar-04 256 62 74.5 55.4

444 21-Jun-04 128 51.4 ND 57.4 81 444 23-Sep-04 160.3 237.7 196.7 209

444 16-Dec-04 203.7 280.5 96 259.3

444 28-Mar-05 123 123 109 186
674 31-May-02 99 92 -- 88

674 25-Jun-02 109 63 83 85

674 23-Jul-02 62 136 99 77
674 23-Aug-02 95 98 -- 90 674 25-Sep-02 140 138 -- 127 ND

674 07-Nov-02 137 191 -- 178

674 12-Dec-02 183 231 -- 177

674 15-Jan-03 201 166 -- 133

674 14-Mar-03 205 104 -- 175

674 23-Jun-03 175 118 -- 134 263 16-Sep-02 74 44 ND 50 93

263 01-Nov-02 63 49 ND 58 79

263 09-Dec-02 73 46 45 44 ND

263 17-Mar-03 65 50 ND 81 63

263 23-Jun-03 58 57 68 60 581 16-Sep-02 67 69 134 63

581 01-Nov-02 55 ND 69 55 ND 44 ND

581 09-Dec-02 54 55 65 67

581 25-Jul-05 78 113 134 107

581 04-Oct-05 65 132 109 103
581 02-May-06 80 122 171 119 240 16-Sep-02 90 61 ND 91 ND 114 ND

240 30-Oct-02 99 78 ND 80 ND 81 ND

240 10-Dec-02 78 ND 76 ND 81 ND 84 ND



### ICF International A-40 DRAFT – December 2006

### Appendix A



## Exhibit A-6. Recontamination Soil Sampling Results for Pb - Primary Pb Smelter a

RESULTS (mg/kg) b, c

Quadrant 1 Quadrant 2 Quadrant 3 Quadrant 4 Pilot Analysis ID Sampling Date

240 14-Mar-03 79 ND 80 ND 77 145

240 23-Jun-03 128 100 ND 98 ND 98 ND 240 23-Sep-03 84 76 ND 122 129

240 22-Dec-03 79.4 121.5 62.5 165.5

240 22-Mar-04 110 139.5 85.4 117.5

240 21-Jun-04 107.3 ND 147 91.5 ND 131.5 240 23-Sep-04 93.7 177 91.3 196.5

240 16-Dec-04 103.4 ND 179 97 193.5

240 28-Mar-05 106 163 80 ND 184

240 07-Jul-05 242 232 138 266

240 04-Oct-05 125 224 115 275
240 01-May-06 124 177 120 157

257 11-Feb-02 52 54 62 87

257 14-Mar-02 71 70 79 75
257 15-Apr-02 63 60 71 74
257 21-May-02 122 76 69 57

257 21-Jun-02 79 76 73 99

257 23-Jul-02 54 50 57 54
257 22-Aug-02 60 54 65 46 ND 257 23-Sep-02 81 103 66 59

257 01-Nov-02 81 77 88 64

257 12-Dec-02 61 58 179 120

257 14-Mar-03 61 60 63 57

257 23-Jun-03 98 56 120 74 257 23-Sep-03 133 151 72 85

257 22-Dec-03 75 68 76 68

257 22-Mar-04 89 73 92 68 ND

257 21-Jun-04 101.6 123 107.4 70.7 257 23-Sep-04 107.5 222 126 136

257 16-Dec-04 162.3 128.7 78.9 79.3

257 29-Mar-05 90 143 127 97

576 06-Feb-02 71 67 55 120

576 14-Mar-02 68 62 74 69 ND
576 17-Apr-02 64 63 69 69
576 21-May-02 74 77 76 68

576 25-Jun-02 140 76 55 63

576 23-Jul-02 69 44 ND 53 65
576 23-Aug-02 55 63 74 65 576 25-Sep-02 78 79 75 59

576 07-Nov-02 104 54 75 62

576 12-Dec-02 111 62 76 60

576 15-Jan-03 63 71 60 79

576 14-Mar-03 100 68 85 94

576 23-Jun-03 68 53 81 57 576 22-Sep-03 91 45 94 101

576 22-Dec-03 64.8 56.6 85.7 78

576 22-Mar-04 83.7 53 ND 71.9 78.9

576 21-Jun-04 85.7 69.3 78.5 76.5 576 23-Sep-04 127.8 112.4 101 91.3

576 16-Dec-04 85.9 99.8 80.9 85.8



### ICF International A-41 DRAFT – December 2006

### Appendix A



## Exhibit A-6. Recontamination Soil Sampling Results for Pb - Primary Pb Smelter a

RESULTS (mg/kg) b, c

Quadrant 1 Quadrant 2 Quadrant 3 Quadrant 4 Pilot Analysis ID Sampling Date

576 28-Mar-05 121 120 76.7 89

576 07-Jul-05 192 169 145 163

576 03-Oct-05 147 141 105 137
576 02-May-06 97 71 92 127

207 06-Feb-02 53 ND 58 ND 67 ND 82

207 14-Mar-02 177 ND 160 ND 230 ND 150 ND
207 16-Apr-02 59 67 59 93
207 22-May-02 54 ND 52 ND 53 ND 95

207 21-Jun-02 69 54 52 ND 50 ND

207 23-Jul-02 65 52 52 45 ND
207 22-Aug-02 46 ND 75 53 68 207 23-Sep-02 70 59 52 ND 51

207 23-Oct-02 51 54 ND 55 56 ND

207 09-Dec-02 50 51 ND 46 ND 56

207 14-Mar-03 65 49 48 47

207 23-Jun-03 50 46 44 74 207 22-Sep-03 110 106 40 107

207 22-Dec-03 87 51.6 45.1 68

207 22-Mar-04 63.6 69.2 63.3 157.7

207 21-Jun-04 61.7 70.2 ND 80.9 70.2 207 23-Sep-04 111.3 104 179 169

207 16-Dec-04 126 83.3 75.1 100.4

207 29-Mar-05 120 123 65 ND 133

207 14-Jul-05 100 100 75 115

207 04-Oct-05 69 90 84 107
207 01-May-06 98 166 83 137

347 15-Feb-02 61 ND 62 ND 68 59

347 14-Mar-02 160 58 ND 59 64 ND
347 16-Apr-02 53 ND 59 ND 57 ND 56 ND
347 20-May-02 107 58 57 56

347 25-Jun-02 98 56 63 55

347 24-Jul-02 55 62 66 54
347 26-Aug-02 60 57 56 121 347 24-Sep-02 67 71 69 138

347 07-Nov-02 86 90 126 61

347 10-Dec-02 74 84 125 113

347 17-Mar-03 121 164 152 140

347 23-Jun-03 150 88 179 137 347 23-Sep-03 245 210 212 132

347 22-Dec-03 224 128.5 181.5 295

347 22-Mar-04 175 100 311 216

347 21-Jun-04 138 76.1 170.3 233 347 23-Sep-04 268 404.3 338 423.3

347 16-Dec-04 163 358.3 331.7 290.3

347 30-Mar-05 239 426 207 177

347 07-Jul-05 298 376 235 341

347 04-Oct-05 154 271 357 447
347 01-May-06 250 382 264 515

176 13-Feb-02 116 72 ND 67 ND 73 ND

176 14-Mar-02 78 67 69 79



### ICF International A-42 DRAFT – December 2006

### Appendix A



## Exhibit A-6. Recontamination Soil Sampling Results for Pb - Primary Pb Smelter a

RESULTS (mg/kg) b, c

Quadrant 1 Quadrant 2 Quadrant 3 Quadrant 4 Pilot Analysis ID Sampling Date
176 17-Apr-02 59 81 62 ND 59 ND
176 22-May-02 45 ND 57 50 ND 54

176 25-Jun-02 53 ND 98 55 53

176 24-Jul-02 60 140 56 54
176 23-Aug-02 70 102 50 42 176 25-Sep-02 73 114 75 66

176 07-Nov-02 60 ND 50 69 54

176 12-Dec-02 56 88 59 70

176 15-Jan-03 50 ND 97 61 67

176 23-Mar-04 152 244 121 134

176 21-Jun-04 206.7 103.7 94.7 110.7 176 23-Sep-04 674 244.7 169.7 170.7

176 16-Dec-04 139.7 205.3 137.7 151.6

176 28-Mar-05 241 189 136 150

176 08-Jul-05 233 360 136 193

176 03-Oct-05 201 306 301 231

512 06-Feb-02 51 86 46 ND 64 ND

512 14-Mar-02 135 80 78 61 ND
512 17-Apr-02 60 ND 81 61 ND 65
512 22-May-02 58 158 61 73

512 25-Jun-02 60 88 52 57

512 23-Jul-02 67 127 51 53
512 26-Aug-02 79 154 59 61 512 24-Sep-02 71 106 70 57

512 07-Nov-02 99 131 59 69

512 10-Dec-02 148 234 82 92

512 23-Jun-03 114 260 95 85 512 23-Sep-03 130 281 110 182

512 22-Dec-03 128 290 150 88

512 22-Mar-04 116 315 191 94.6

512 22-Jun-04 112 211.7 84.8 79.4 512 23-Sep-04 249.3 328.7 202 235

512 16-Dec-04 102.4 284 75 202.8

512 30-Mar-05 196 295 188 167

512 08-Jul-05 184 247 111 180

512 04-Oct-05 147 259 170 111
512 02-May-06 275 351 189 187

398 08-Oct-02 -- -- -- 51 ND

398 31-Oct-02 -- -- -- 38 ND

398 09-Dec-02 -- -- -- 58

398 13-Jan-03 -- -- -- 58

181 07-Nov-02 193 82 58 73

181 10-Dec-02 117 64 53 60

181 17-Mar-03 120 60 99 73

181 23-Jun-03 141 78 77 57 ND 181 23-Sep-03 163 65 87 131

181 22-Dec-03 96 72.9 74.5 76.2

181 22-Mar-04 164 80 92 89.9

181 22-Jun-04 237.3 112 101.5 106 181 23-Sep-04 219 141.7 68.2 114.3



### ICF International A-43 DRAFT – December 2006

### Appendix A



## Exhibit A-6. Recontamination Soil Sampling Results for Pb - Primary Pb Smelter a

RESULTS (mg/kg) b, c

Quadrant 1 Quadrant 2 Quadrant 3 Quadrant 4 Pilot Analysis ID Sampling Date

181 16-Dec-04 195 141 68.69 162

181 30-Mar-05 177 89 90 136

181 07-Jul-05 140 167 98 113

181 04-Oct-05 196 218 127 205
181 02-May-06 220 281 113 95

328 30-Oct-03 51.7 68.8 -- --

328 22-Dec-03 173 123 -- --

328 22-Mar-04 144 169 -- --

328 22-Jun-04 95.7 137.3 -- -- 328 23-Sep-04 212.3 131.5 -- --

328 16-Dec-04 173.3 399 -- --

328 29-Mar-05 196 136 -- --

328 07-Jul-05 255 144 -- --

328 03-Oct-05 236 181 -- --
328 18-May-06 213 248 -- --

684 22-Dec-03 90.3 53 41 38.8

684 22-Mar-04 73.6 60.7 77.5 59.9

684 22-Jun-04 126.4 59.4 ND 75.6 72.4 684 23-Sep-04 88.9 121.3 126 104.8

684 16-Dec-04 144.2 227 147 171.3

684 28-Mar-05 182 171 151 142

684 08-Jul-05 101 118 116 132

684 04-Oct-05 91 126 107 109
684 02-May-06 129 140 169 168

575 22-Dec-03 257 285 181 250

575 22-Mar-04 451 530 280 217

575 21-Jun-04 462 518 208 264 575 23-Sep-04 495 458.7 325 485

575 16-Dec-04 837.8 854.5 367.7 299.3

575 30-Mar-05 551 638 395 296

575 07-Jul-05 1507 528 557 437

575 04-Oct-05 390 266 304 512
575 02-May-06 488 258 258 240

224 28-Mar-05 44 ND 43 ND 49 ND 55 ND

224 07-Jul-05 52 ND 68 54 ND 54 ND

224 03-Oct-05 42 ND 48 ND 50 422
224 02-May-06 39 37 ND 44 ND 94

402 28-Mar-05 76.5 48 -- 50

402 07-Jul-05 57 ND 61 ND -- 60 ND

402 03-Oct-05 62 52 ND -- 47 ND
402 01-May-06 50 ND 48 -- 41 ND

1078 31-Jan-02 405 -- -- --

1078 14-Mar-02 173 ND -- -- --
1078 17-Apr-02 138 -- -- --
1078 21-May-02 107 -- -- --

1078 25-Jun-02 106 -- -- --

1078 24-Jul-02 250 -- -- --
1078 26-Aug-02 102 -- -- -- 1078 24-Sep-02 94 -- -- --

1078 07-Nov-02 80 -- -- --



### ICF International A-44 DRAFT – December 2006

### Appendix A



## Exhibit A-6. Recontamination Soil Sampling Results for Pb - Primary Pb Smelter a

RESULTS (mg/kg) b, c

Quadrant 1 Quadrant 2 Quadrant 3 Quadrant 4 Pilot Analysis ID Sampling Date

1078 10-Dec-02 100 -- -- --

1078 14-Mar-03 154 -- -- --

1078 23-Jun-03 206 -- -- -- 1078 23-Sep-03 164 -- -- --

1078 22-Dec-03 106 -- -- --

1078 22-Mar-04 184 -- -- --

1078 21-Jun-04 263.8 -- -- -- 1078 23-Sep-04 845.6 -- -- --

1078 16-Dec-04 130.5 -- -- --

1078 28-Mar-05 151 -- -- --

1078 07-Jul-05 209 -- -- --

1078 03-Oct-05 287 -- -- --
1078 01-May-06 277 -- -- --

1079 22-Dec-03 67 121 -- --

1079 22-Mar-04 111.7 105.6 -- --

1079 22-Jun-04 231.3 227.7 -- -- 1079 23-Sep-04 362 329.7 -- --

1079 16-Dec-04 275 338.3 -- --

1079 28-Mar-05 338 230 -- --

1079 07-Jul-05 345 164 -- --

1079 03-Oct-05 622 590 -- --
1079 02-May-06 370 1276 -- --

a 

### Data were obtained from EPA Region 7 (2006).

c 

### "--" indicates that no sample was collected for that quadrant. b 

### A value qualified with a "ND" represents a non-detect. The value presented is the detection limit. For the purpose of calculating the property average by year, one-half the detection limit was used as the value

for non-detects.



### ICF International A-45 DRAFT – December 2006

### Appendix A



## Exhibit A-7. Average Soil Pre-Excavation, Post-Excavation, and Recontamination Pb Results for 31 Residential Locations within One Mile of the Primary Pb Smelter

Pre-Excavation Post-Excavation
(mg/kg) a (mg/kg) a 2002 2003 2004 2005 2006

151 918 377 47.3 59.8 65.3 97.3 77.5

176 1471 889 62.1 62.5 191.3 223.1

181 1367 671 87.5 90.1 130.8 146.3 177.3

184 3308 420 51.1 -- -- -- --

197 3035 806 93.8 106.9 162 176.1 172.5

207 1039 750 52.2 64.9 96.9 95.7 121

212 355 568 93.1 119.4 180.4 200.3 198.5

224 579 -- -- -- -- 63.4 43.4

239 4155 1138 81.3 77 -- -- --

240 2770 489 50.1 86.2 119.4 175.8 144.5

257 1073 453 73.1 82.3 108.2 114.3 --

263 1425 885 54.1 59.6 -- -- --

328 5138 1279 -- 104.1 182.8 191.3 230.5

340 917 1015 59.2 90.2 141.3 171 230.8

347 614 101 69.2 172.4 249.8 294 352.8

398 394 160 34.2 58 -- -- --

402 1740 -- -- -- -- 41.7 31.2

444 1795 332 49.4 244.2 149 135.3 --

454 667 184 28.9 41.4 -- -- --

493 466 126 32.5 40.8 -- -- --

512 2013 696 80 159.4 180.2 187.9 250.5

531 618 567 44.6 56.2 91 92.3 55.5

575 -- 1177 -- 243.3 440.8 531.8 311

576 1500 736 70.2 74.8 84.7 133.8 96.8

579 1528 711 91.5 -- -- -- --

581 837 354 60 -- -- 105.1 123

626 604 208 37.1 39.6 -- -- --

674 1850 965 120.8 156.8 -- -- --

684 6857 213 -- 55.8 106.6 128.8 151.5

1078 -- -- 146.9 157.5 356 215.7 277

1079 9173 88 -- 94 247.7 381.5 823

a 

### All available pre-excavation and post-excavation results by quadrant are provided in Exhibits A-4 and A-5, respectively.

b 

### Soil samples from up to four quadrants were collected each date. The results for the quadrants were first averaged (using one-half the detection limit as the value for non-detects) before determining the final overall average by year for each locati on.

c 

### During the process of summarizing post-excavation and recontamination Pb results for the 31 locations, it was noted that, in general, post-excavation sampling results (collected during 2001/2002) were higher than the Pb results for recontamination samples collected subsequently in 2002 or 2003. This may be due to the fact that post-excavation samples were collected prior to backfilling the excavated areas with clean soil, but this has yet to be determined. Averages (mg/kg) b,c

Pilot Analysis

ID



### ICF International A-46 DRAFT – December 2006

### Appendix A

Pb Loading Pb

Concentration Window Sill Pb Loading Other Wipe Pb Loading
(mg/ft 2 ) (mg/kg) ( μ g/ft 2 ) ( μ g/ft 2 ) 184 Recon #01 16-Apr-02 43 3300 1385 120 184 Recon #02 29-May-02 28.4 4350 881 47

184 Recon #03 26-Jun-02 25.7 3364 630 54

184 Recon #04 24-Jul-02 46.6 3874 1257 69 579 Recon #01 16-Apr-02 0.54 370 413 17 579 Recon #02 31-May-02 0.402 383 293 12

579 Recon #03 28-Jun-02 0.986 539 173 16 579 Recon #04 2-Aug-02 0.548 728 201 9 579 Recon #05 26-Aug-02 0.216 826 225 6.2 151 Recon #01 16-Apr-02 2.1 1000 165 66 151 Recon #02 28-May-02 2.09 918 75 22

151 Recon #03 28-Jun-02 0.448 786 38 14

151 Recon #04 22-Jul-02 0.468 895 27 12 151 Recon #05 28-Aug-02 0.322 559 49 13 151 Recon #06 30-Sep-02 0.696 655 36 11

151 Recon #07 23-Oct-02 2.17 710 36 4.4

151 Recon #08 4-Dec-02 0.619 642 14 7.7

151 Recon #09 10-Jan-03 0.471 675 13 6.9

151 Recon #10 26-Feb-03 0.437 612 23 5.3 151 Recon #11 1-Apr-03 0.623 644 26 8.5

151 Recon #12 16-Jul-03 0.487 435 40 4.6

151 Recon #13 15-Oct-03 0.567 394 17 3.3

151 Recon #14 7-Jan-04 0.605 477 6.7 3.8 151 Recon #15 14-Apr-04 -- -- 60 5.1

151 Recon #16 8-Jul-04 -- -- 9.4 3.4

151 Recon #17 8-Oct-04 -- -- 55 3.1

151 Recon #18 10-Jan-05 -- -- 7.5 2.9 151 Recon #19 19-Apr-05 -- -- 28 11

151 Recon #20 5-Jul-05 -- -- 17 5.2

151 Recon #21 7-Oct-05 -- -- 23 6.6 151 Recon #22 24-Apr-06 -- -- 21 7.6 493 Recon #01 17-Apr-02 1.4 600 353 19 493 Recon #02 24-May-02 0.258 695 75 15

493 Recon #03 16-Jul-02 2.38 664 67 18 493 Recon #06 20-Sep-02 0.616 426 32 12

493 Recon #07 24-Oct-02 1.01 629 45 12

493 Recon #08 3-Dec-02 0.523 681 17 11

493 Recon #09 27-Jan-03 2.25 845 31 10

493 Recon #10 25-Feb-03 0.631 313 16 6.1

493 Recon #11 24-Mar-03 1.07 613 28 11 340 Recon #01 17-Apr-02 0.66 2200 352 14 340 Recon #02 30-May-02 2.15 3711 508 24

340 Recon #03 26-Jun-02 0.826 2191 638 19

340 Recon #04 30-Jul-02 0.497 2551 185 22 340 Recon #05 6-Sep-02 0.512 1510 60 6.8

340 Recon #07 14-Nov-02 0.334 900 141 7.3 340 Recon #11 3-Apr-03 0.806 1032 576 16

340 Recon #12 30-Jun-03 0.998 1665 912 8.5

340 Recon #13 17-Oct-03 0.824 1377 156 10 197 Recon #01 22-Apr-02 4.7 1900 264 35

197 Recon #02 4-Jun-02 11.3 2603 109 48

197 Recon #03 18-Jul-02 6.26 1783 105 25 531 Recon #01 22-Apr-02 1.6 950 101 18 

## Exhibit A-8. Indoor Dust/Wipe Sample Results for Pb - Primary Pb Smelter a

Pilot Analysis ID Round No. Date Carpet Dust b Wipe



### ICF International A-47 DRAFT – December 2006

### Appendix A

Pb Loading Pb

Concentration Window Sill Pb Loading Other Wipe Pb Loading
(mg/ft 2 ) (mg/kg) ( μ g/ft 2 ) ( μ g/ft 2 ) 

## Exhibit A-8. Indoor Dust/Wipe Sample Results for Pb - Primary Pb Smelter a

Pilot Analysis ID Round No. Date Carpet Dust b Wipe

531 Recon #02 30-May-02 1.6 1778 35 15

531 Recon #03 27-Jun-02 1.3 1461 10 7.6

531 Recon #04 25-Jul-02 3.19 2477 10 6.1 531 Recon #05 28-Aug-02 1.67 2409 11 7.8

531 Recon #07 24-Oct-02 1.44 860 16 7.2

531 Recon #10 26-Feb-03 1.46 336 23 21 531 Recon #11 9-Apr-03 1.7 579 52 14

531 Recon #12 23-Jul-03 2 428 15 11

531 Recon #14 7-Jan-04 1.85 639 46 11 531 Recon #15 9-Apr-04 2.24 1208 35 14 531 Recon #16 3-Aug-04 0.811 761 21 8.2

531 Recon #17 8-Nov-04 1.02 400 51 9.2

531 Recon #19 22-Mar-05 2.25 647 15 10

531 Recon #20 5-Jul-05 0.56 137 6.9 8.4

531 Recon #21 5-Oct-05 0.106 122 53 11 531 Recon #22 25-Apr-06 0.168 233 41 6.7 626 Recon #01 23-Apr-02 0.53 290 110 44 626 Recon #02 30-May-02 0.393 457 82 6.1

626 Recon #04 26-Jul-02 0.616 410 129 5.5

626 Recon #07 25-Oct-03 0.349 317 71 4.4 212 Recon #01 30-Apr-02 0.46 610 62 10 212 Recon #02 28-May-02 0.327 557 22 14

212 Recon #04 26-Jul-02 0.332 659 62 3.3 212 Recon #05 4-Sep-02 0.578 734 21 3.2

212 Recon #06 2-Oct-02 0.324 531 9 2.6

212 Recon #07 8-Nov-02 0.316 650 6.3 2.2

212 Recon #08 18-Dec-02 0.332 490 6.2 3.2

212 Recon #09 31-Jan-03 0.451 586 12 3.6

212 Recon #10 25-Feb-03 0.524 671 10 4.4 212 Recon #11 8-Apr-03 0.439 512 24 4.4

212 Recon #12 9-Jul-03 0.395 477 6.9 4

212 Recon #14 7-Jan-04 0.283 455 14 2.3 212 Recon #15 15-Apr-04 0.334 457 16 4.6

212 Recon #17 10-Nov-04 0.229 589 11 6

212 Recon #19 29-Mar-05 0.137 321 9

212 Recon #20 6-Jul-05 0.338 422 6 11 212 Recon #22 25-Apr-06 0.0305 660 22 9.1 454 Recon #01 30-Apr-02 0.22 450 35 8.5

454 Recon #02 3-Jun-02 1.75 1502 33 9.3

454 Recon #03 18-Jul-02 0.22 517 17 8.5

454 Recon #07 28-Oct-02 0.235 526 31 9.2

454 Recon #08 4-Dec-02 0.299 550 28 6.8

454 Recon #09 3-Feb-03 0.0142 247 9 5.9

454 Recon #10 26-Feb-03 0.319 224 16 5.7 239 Recon #01 30-Apr-02 26 3000 405 12 239 Recon #02 28-May-02 22.6 2124 251 18

239 Recon #03 1-Jul-02 25 1944 292 10 239 Recon #04 2-Aug-02 31 2862 85 11 239 Recon #05 27-Aug-02 11.8 1682 56 8.2 444 Recon #01 6-May-02 9.3 2300 905 72

444 Recon #02 7-Jun-02 6.6 2588 1134 41 674 Recon #02 31-May-02 4.62 1669 40 102

674 Recon #03 25-Jun-02 2.15 1394 33 29



### ICF International A-48 DRAFT – December 2006

### Appendix A

Pb Loading Pb

Concentration Window Sill Pb Loading Other Wipe Pb Loading
(mg/ft 2 ) (mg/kg) ( μ g/ft 2 ) ( μ g/ft 2 ) 

## Exhibit A-8. Indoor Dust/Wipe Sample Results for Pb - Primary Pb Smelter a

Pilot Analysis ID Round No. Date Carpet Dust b Wipe

674 Recon #04 25-Jul-02 3 1482 25 24 674 Recon #05 27-Aug-02 2.06 1459 15 12

674 Recon #07 22-Oct-02 2.88 1273 11 31

674 Recon #08 3-Dec-02 1.54 1056 20 31

674 Recon #09 3-Jan-03 2.28 1088 16 10

674 Recon #10 21-Feb-03 2.28 742 11 5.4 674 Recon #11 15-Apr-03 2.09 927 18 11 263 Recon #06 17-Sep-02 0.378 1336 176 4

263 Recon #07 24-Oct-02 0.673 1786 31 6.4

263 Recon #08 2-Dec-02 0.649 1619 34 5.1

263 Recon #09 7-Jan-03 0.514 1196 104 4.4

263 Recon #10 24-Feb-03 0.182 745 23 4

263 Recon #11 24-Mar-03 0.635 1119 57 9.5

263 Recon #12 30-Jun-03 1.39 980 95 6.9 581 Recon #06 27-Sep-02 0.489 369 124 43

581 Recon #07 31-Oct-02 1.19 566 99 6.3

581 Recon #08 11-Dec-02 1.05 426 34 6.5

581 Recon #09 8-Jan-03 1.51 376 24 7.5

581 Recon #20 25-Jul-05 0.0201 131 32 5.3

581 Recon #21 3-Oct-05 0.0483 143 41 8.4 581 Recon #22 25-Apr-06 0.108 271 155 7 240 Recon #06 26-Sep-02 4.48 1795 505 26

240 Recon #07 23-Oct-02 5.04 1633 199 19

240 Recon #08 4-Dec-02 3.99 1700 159 21

240 Recon #09 3-Jan-03 3.58 1591 96 18

240 Recon #10 20-Feb-03 13.8 2877 68 15

240 Recon #11 20-Mar-03 8.22 1813 62 20

240 Recon #12 3-Jul-03 2.93 1075 409 15

240 Recon #13 1-Oct-03 1.7 873 188 19

240 Recon #14 7-Jan-04 1.12 929 133 11 240 Recon #15 7-Apr-04 1.45 1064 108 14

240 Recon #16 16-Jul-04 0.95 805 171 13

240 Recon #17 18-Oct-04 3.03 1170 455 8.3

240 Recon #18 10-Jan-05 1.06 735 72 11 240 Recon #19 19-Apr-05 1.08 834 84 20

240 Recon #20 7-Jul-05 0.68 816 599 28

240 Recon #21 5-Oct-05 0.585 766 89 18 240 Recon #22 5-May-06 0.843 1040 502 24

398 Recon #06 7-Oct-02 0.49 354 19 5.2

398 Recon #07 28-Oct-02 0.342 244 17 5.5

398 Recon #08 3-Dec-02 0.95 322 10 3.7

398 Recon #09 7-Jan-03 0.499 470 5.6 2.8

a 

### Data were obtained from EPA Region 7 (2006).

b 

### "--" indicates that no measurement was taken on that date.



### ICF International A-49 DRAFT – December 2006

## Appendix A



## Exhibit A-9. Soil and Air Deposition Monitoring Locations Around the Primary Pb Smelter

ICF International A-50 DRAFT – December 2006

### Appendix A

RESULTS (mg/kg) b, c

Round 1 Round 2 Round 3 Round 4

6-Mar-03 40 ND 39 ND 38 ND -- 11-Apr-03 58 ND 119 54 ND 63 ND 7-May-03 36 ND 42 ND 47 ND --

6-Jun-03 116 58 ND 52 ND 51 ND

11-Jul-03 79.1 55 ND 67.1 -- 11-Aug-03 80.3 82.3 54 ND 97.8 15-Sep-03 57 ND 89.1 78.1 --

15-Oct-03 70.3 51.3 98.9 --

18-Nov-03 90.5 90.2 140 111

17-Dec-03 165 81.4 107 132

19-Jan-04 34.9 80.9 105 52.9

19-Feb-04 186 159 87.8 --

19-Mar-04 81.9 115 136 -- 21-Apr-04 95.8 213 177 -- 24-May-04 142 37 ND 36 ND --

24-Jun-04 130 51 ND 139 105 27-Aug-04 50.8 70.4 119 --

6-Mar-03 48 ND 31 ND 44 ND 36 ND 11-Apr-03 50 ND 50 ND 51 ND -- 7-May-03 35 ND 48 ND 35 ND --

6-Jun-03 56 ND 35 ND 31 ND --

11-Jul-03 53 ND 39 ND 46 ND -- 11-Aug-03 59 ND 48 ND 56 ND -- 15-Sep-03 35 ND 51 ND 39 ND --

15-Oct-03 33.4 39.9 30 --

17-Nov-03 34 ND 59.4 46.2 --

17-Dec-03 54.4 26 ND 37.3 --

19-Jan-04 38 ND 31 ND 32 ND --

19-Feb-04 64.3 30 35 --

19-Mar-04 43.4 55 42.1 -- 21-Apr-04 43.8 48.6 46.1 -- 24-May-04 59.3 135 27 ND --

24-Jun-04 52 ND 64.5 37 ND -- 27-Aug-04 36.2 137 34.1 --

6-Mar-03 30 ND 38 ND 37 ND -- 16-Apr-03 49 ND 46 ND 43 ND -- 7-May-03 42 ND 48 ND 53 ND --

6-Jun-03 35 ND 65 ND 56 ND --

11-Jul-03 62 ND 74 ND 59 ND -- 11-Aug-03 54 ND 64 ND 63 ND -- 15-Sep-03 50 ND 45 ND 47 ND --

15-Oct-03 33 ND 44.3 47.4 --

18-Nov-03 46.5 45.8 37.9 --

17-Dec-03 48.7 58.9 30 ND --

19-Jan-04 63.2 57.7 45 ND --

19-Feb-04 51.1 91 69.9 --

19-Mar-04 47 ND 75.5 53.2 -- 21-Apr-04 52.7 49 ND 64.4 -- 24-May-04 43 ND 62 94.9 --

24-Jun-04 67 ND 46 ND 84.1 -- 27-Aug-04 46.7 36 ND 37.4 -- 207

240 

## Exhibit A-10. Soil Deposition Monitoring Results for Pb - Primary Pb Smelter a

Pilot Analysis ID Sampling Date

181



### ICF International A-51 DRAFT – December 2006

### Appendix A

RESULTS (mg/kg) b, c

Round 1 Round 2 Round 3 Round 4 

## Exhibit A-10. Soil Deposition Monitoring Results for Pb - Primary Pb Smelter a

Pilot Analysis ID Sampling Date

14-Feb-03 25 ND 26 ND 21 ND -- 11-Apr-03 60.2 65.5 39 ND -- 7-May-03 32 ND 27 ND 29 ND --

6-Jun-03 51 ND 27 ND 48 ND --

11-Jul-03 32 ND 40 ND 30 ND -- 11-Aug-03 80.4 47 ND 65.7 43 ND 15-Sep-03 28 ND 30 ND 36 ND --

15-Oct-03 38.4 28.4 92.4 --

17-Nov-03 64.8 105 52.9 --

17-Dec-03 198 119 129 --

19-Jan-04 83.9 90.1 103 --

19-Feb-04 161 106 117 --

19-Mar-04 58.9 30 ND 39.1 -- 21-Apr-04 275 190 216 -- 24-May-04 155 152 217 --

24-Jun-04 330 402 302 -- 27-Aug-04 66.5 278 59.3 289

6-Mar-03 31 ND 32 ND 34 ND -- 11-Apr-03 90 ND 47 ND 56 ND -- 7-May-03 32 ND 24 ND 53.5 --

6-Jun-03 69 ND 50 ND 48 ND --

11-Jul-03 81 ND 71 ND 39 ND -- 11-Aug-03 70 65 ND 49 ND -- 15-Sep-03 53 50 ND 56.1 --

15-Oct-03 47.4 29 ND 29 ND --

17-Nov-03 73.6 65.2 59.2 --

17-Dec-03 79.4 62.4 41.9 --

19-Jan-04 58.8 38 ND 36 ND --

19-Feb-04 69.3 83.8 63.9 --

19-Mar-04 84.3 46.1 96.2 -- 21-Apr-04 68.4 131 147 -- 24-May-04 107 89.4 60.4 --

24-Jun-04 160 71.5 55 ND -- 27-Aug-04 119 50 ND 102 --

6-Mar-03 22 ND 23 ND 22 ND -- 11-Apr-03 34 ND 46 ND 35 ND -- 7-May-03 20 ND 22 ND 28 ND --

6-Jun-03 33 ND 34 ND 29 ND --

11-Jul-03 28 ND 31 ND 26 ND -- 11-Aug-03 49 ND 57 ND 44 ND -- 15-Sep-03 22 ND 22 ND 34 ND --

15-Oct-03 19 ND 19 ND 21 ND --

17-Nov-03 19 ND 19 ND 20 ND --

17-Dec-03 24 ND 27 ND 26 ND --

19-Jan-04 28 ND 28 ND 31 ND --

19-Feb-04 19 ND 20 ND 20 ND --

19-Mar-04 23 ND 23 ND 52.2 -- 21-Apr-04 28 ND 31.8 29.7 -- 24-May-04 41.4 24 ND 24 ND --

24-Jun-04 24 ND 29 ND 23 ND -- 27-Aug-04 25 ND 26 ND 23 ND -- 286

444

531



### ICF International A-52 DRAFT – December 2006

### Appendix A

RESULTS (mg/kg) b, c

Round 1 Round 2 Round 3 Round 4 

## Exhibit A-10. Soil Deposition Monitoring Results for Pb - Primary Pb Smelter a

Pilot Analysis ID Sampling Date

6-Mar-03 36 ND 40 ND 42 ND -- 11-Apr-03 71 ND 42 ND 46 ND -- 7-May-03 43 ND 35 ND 40 ND --

6-Jun-03 43 ND 55 ND 47 ND --

11-Jul-03 38 ND 46 ND 50 ND -- 11-Aug-03 53 ND 51 ND 44 ND -- 15-Sep-03 38 ND 50 ND 40 ND --

15-Oct-03 24 ND 41 ND 35 ND --

17-Nov-03 38.8 32.9 29 ND --

17-Dec-03 60.4 34 ND 35.1 --

19-Jan-04 42 ND 50 ND 45 ND --

19-Feb-04 41 30 ND 49.5 --

19-Mar-04 36 ND 74.6 42 ND -- 21-Apr-04 68.4 63.3 36 ND -- 24-May-04 62.6 53.6 35.7 --

24-Jun-04 49 ND 42 ND 64.9 -- 27-Aug-04 54.4 35.9 28 ND --

7-Jan-03 23 ND 22 ND 26 ND --

14-Feb-03 32 ND 35 ND 28 ND -- 11-Apr-03 135 119 102 -- 7-May-03 47 37.4 37.8 --

6-Jun-03 115 73.9 133 --

11-Jul-03 205 153 144 -- 11-Aug-03 336 622 259 -- 15-Sep-03 288 301 294 --

15-Oct-03 330 143 219 228

17-Nov-03 309 218 281 --

17-Dec-03 265 206 176 189

19-Jan-04 188 317 188 --

19-Feb-04 404 271 311 291

19-Mar-04 278 306 434 -- 21-Apr-04 602 515 464 -- 24-May-04 210 229 360 --

24-Jun-04 279 285 499 279 27-Aug-04 166 143 143 --

7-Mar-03 24 ND 21 ND 21 ND -- 11-Apr-03 30 ND 36 ND 39 ND -- 7-May-03 22 ND 22 ND 20 ND --

6-Jun-03 22 ND 26 ND 30 ND --

11-Jul-03 33 ND 33 ND 33 ND -- 11-Aug-03 32 ND 25 ND 26 ND -- 15-Sep-03 26 ND 28 ND 28 ND --

15-Oct-03 17 ND 16 ND 17 ND --

18-Nov-03 17 ND 15 ND 19 ND --

17-Dec-03 20 ND 13 ND 18 ND --

19-Jan-04 24 ND 17 ND 24 ND --

19-Feb-04 20 17 20 --

19-Mar-04 13 ND 19 ND 22 ND -- 21-Apr-04 28 ND 36 ND 23 ND -- 24-May-04 21 ND 20 ND 19 ND --

24-Jun-04 30 ND 30 ND 31 ND -- 27-Aug-04 20 ND 21 ND 21 ND -- 1071

1072 (Control)

576



### ICF International A-53 DRAFT – December 2006

### Appendix A

RESULTS (mg/kg) b, c

Round 1 Round 2 Round 3 Round 4 

## Exhibit A-10. Soil Deposition Monitoring Results for Pb - Primary Pb Smelter a

Pilot Analysis ID Sampling Date

7-Jan-03 25 ND 20 ND 28 ND --

14-Feb-03 30 ND 24 ND 25 ND -- 11-Apr-03 64.1 63 ND 103 77.2 7-May-03 29 ND 26 ND 28 ND --

6-Jun-03 46.1 41.1 57.8 --

11-Jul-03 93.9 46.4 95.2 -- 11-Aug-03 165 108 190 -- 15-Sep-03 97.6 85.7 125 --

15-Oct-03 54.5 68.1 75.8 --

18-Nov-03 74.8 82.3 109 50.8

17-Dec-03 87 55.2 146 80.3

19-Jan-04 131 144 107 --

19-Feb-04 172 125 104 --

19-Mar-04 36.9 30 ND 187.7 -- 21-Apr-04 207 103 301 -- 24-May-04 95.8 93 189 --

24-Jun-04 162 114 257 -- 27-Aug-04 205 34.5 136 --

a 

### Data were obtained from EPA Region 7 (2006).

b 

### "--" indicates that no sample was during that time.

c 

### A value qualified with an "ND" represents a non-detect. The value presented is the detection limit. For the purpose of calculating averages, one-half the detection limit was used as the value for non-detects. 1073



### ICF International A-54 DRAFT – December 2006

### Appendix A

RESULTS (mg/ft 2 ) b
Height = 1 foot Height = 10 feet 7-Apr-03 0.774 10.318 7-May-03 10.928 6.041

6-Jun-03 3.657 5.266

11-Jul-03 3.826 3.861 12-Aug-03 2.669 3.543 15-Sep-03 13.584 15.058

15-Oct-03 7.877 6.202

17-Nov-03 5.903 5.32

17-Dec-03 15.137 11.899

19-Jan-04 7.203 5.162

19-Feb-04 8.152 4.927

19-Mar-04 6.943 10.346 21-Apr-04 7.852 6.829

7.3 7.3 7-Apr-03 3.343 4.432 7-May-03 3.684 2.699

6-Jun-03 0.516 0.459

11-Jul-03 2.118 1.986 12-Aug-03 1.006 1.054 15-Sep-03 2.306 2.591

15-Oct-03 1.203 1.494

17-Nov-03 1.497 2.698

17-Dec-03 2.552 3.163

19-Jan-04 2.739 3.025

19-Feb-04 1.093 2.699

19-Mar-04 5.124 6.831 21-Apr-04 4.194 4.202

2.4 2.9 7-Apr-03 3.924 4.128 7-May-03 3.727 4.01

6-Jun-03 1.131 1.068

11-Jul-03 1.666 2.045 12-Aug-03 1.333 1.337 15-Sep-03 2.418 2.164

15-Oct-03 1.62 1.676

17-Nov-03 1.64 2.322

17-Dec-03 3.769 4.657

19-Jan-04 3.627 3.698

19-Feb-04 1.975 1.603

19-Mar-04 4.521 5.57 21-Apr-04 3.363 4.105

2.7 3.0 7-Apr-03 11.904 12.295 7-May-03 10.046 11.758

6-Jun-03 2.579 2.57

11-Jul-03 4.09 4.249 12-Aug-03 1.047 2.624 15-Sep-03 3.86 2.916

15-Oct-03 2.488 2.808

17-Nov-03 5.848 5.581

17-Dec-03 11.737 14.01

19-Jan-04 8.328 3.179

19-Feb-04 4.011 5.487

19-Mar-04 9.145 20.996 21-Apr-04 20.312 33.171

7.3 9.4 

### Annual Averages:

Annual Averages:

Annual Averages: 286 240 207 

### Annual Averages: 

## Exhibit A-11. Air Deposition Monitoring Results for Pb - Primary Pb Smelter a

Pilot Analysis ID Sampling Date

181



### ICF International A-55 DRAFT - December 2006

### Appendix A

RESULTS (mg/ft 2 ) b
Height = 1 foot Height = 10 feet 

## Exhibit A-11. Air Deposition Monitoring Results for Pb - Primary Pb Smelter a

Pilot Analysis ID Sampling Date 7-Apr-03 3.937 4.234 7-May-03 5.204 3.422

6-Jun-03 1.122 0.798

11-Jul-03 2.712 2.333 12-Aug-03 0.803 0.887 15-Sep-03 1.765 3.073

15-Oct-03 2.547 1.371

17-Nov-03 2.376 3.008

17-Dec-03 3.757 4.646

19-Jan-04 2.878 5.938

19-Feb-04 0.452 1.842

19-Mar-04 4.835 7.211 21-Apr-04 7 8.862

3.0 3.7 7-Apr-03 2.645 1.523 7-May-03 1.035 1.193

6-Jun-03 0.452 0.263

11-Jul-03 0.917 0.835 12-Aug-03 0.341 0.484 15-Sep-03 0.887 0.606

15-Oct-03 0.514 0.527

17-Nov-03 0.877 0.542

17-Dec-03 1.713 1.644

19-Jan-04 1.735 2.191

19-Feb-04 0.822 1.073

19-Mar-04 3.525 1.922 21-Apr-04 3.323 2.063

1.4 1.1 7-Apr-03 1.991 1.994 7-May-03 1.827 1.519

6-Jun-03 0.716 0.514

11-Jul-03 1.396 1.417 12-Aug-03 0.596 0.742 15-Sep-03 0.972 1.406

15-Oct-03 0.671 0.966

17-Nov-03 1.183 1.275

17-Dec-03 2.02 1.99

19-Jan-04 2.209 1.786

19-Feb-04 0.596 1.556

19-Mar-04 3.777 3.707 21-Apr-04 3.923 4.399

1.7 1.8 7-Apr-03 14.764 17.635 7-May-03 19.453 7.265

6-Jun-03 4.673 4.611

11-Jul-03 5.802 4.397 12-Aug-03 6.804 6.784 15-Sep-03 16.903 31.997

15-Oct-03 5.247 8.909

17-Nov-03 5.925 4.734

17-Dec-03 16.435 13.384

19-Jan-04 12.265 10.1

19-Jan-04 7.927 8.057

19-Mar-04 22.039 13.635 21-Apr-04 10.718 12.532

11 11 

### Annual Averages:

Annual Averages:

Annual Averages: 1071 576 

### Annual Averages:

531 444



### ICF International A-56 DRAFT - December 2006

### Appendix A

RESULTS (mg/ft 2 ) b
Height = 1 foot Height = 10 feet 

## Exhibit A-11. Air Deposition Monitoring Results for Pb - Primary Pb Smelter a

Pilot Analysis ID Sampling Date 7-Apr-03 0.588 12.125 7-May-03 0.774 0.601

6-Jun-03 0.268 0.292

11-Jul-03 0.363 0.317 12-Aug-03 0.3 0.456 15-Sep-03 0.236 0.241

15-Oct-03 0.203 0.238

17-Nov-03 0.28 0.426

17-Dec-03 0.805 0.7

19-Jan-04 0.676 0.313

19-Feb-04 0.33 0.282

19-Mar-04 0.718 0.642 21-Apr-04 2.382 1.771

0.61 1.4 7-Apr-03 7.798 8.346 7-May-03 6.195 6.507

6-Jun-03 2.296 1.677

11-Jul-03 3.844 6.033 12-Aug-03 1.722 1.983 15-Sep-03 7.751 4.782

15-Oct-03 4.969 4.071

17-Nov-03 5.051 3.52

17-Dec-03 7.816 8.113

19-Jan-04 4.733 5.148

19-Feb-04 3.601 4.754

19-Mar-04 6.899 7.082 21-Apr-04 8.554 5.393

5.5 5.2

a 

### Data were obtained EPA Region 7 (2006).

b 

### "--" indicates that no sample was taken during that time. Annual Averages: Annual Averages:

1073 1072 (Control)



### ICF International A-57 DRAFT - December 2006

## Appendix A



## Exhibit A-12. Air Monitoring Locations Around the Secondary Pb Smelter

ICF International A-58 DRAFT – December 2006

## Appendix A

Average Annual Pb Concentrations from AirData ( μ g/m 3 

### ) a



### 1997 1998 1999 2000

11090003 290 – 480 0.403 0.468 0.474 0.383

11090006 570 – 750 0.132 0.158 0.178 0.198

a 

### AirData values are for average annual Pb concentrations in total suspended particulate matter (TSP) and were obtained from the AirData website monitor reports. Monitor ID Facility (meters) 

## Exhibit A-13. Average Annual Pb Concentrations from AirData Monitors Located Around the Secondary Pb Smelter

ICF International A-59 DRAFT - December 2006

## Appendix A



## References 1

2

3

4

5 U.S. Environmental Protection Agency (USEPA ) Region 7. (2006) Herculaneum Lead Master 090804 (Microsoft Access Database). Obtained from Region 7 and Updates with 2005 and 2006

Data.

ICF International A-60 DRAFT – December 2006

# Appendix B

Emissions and Modeling Parameters for the Primary Pb Smelter

## Appendix B

ICF International B-1 DRAFT – December 2006 

## Appendix B includes a summary and discussion of the primary Pb sm elter facility’s emission and 1 source parameters. Exhibit B-1 presents a su mmary of the emission release parameters and 2 average annual emission rate for the point sources at the primary Pb smelter. Similarly, Exhibits 3 B-2 and B-3 each present a summary of the average annual emission rates and emission release 4 parameters for volume and area sources, respectivel y. Particle size distri bution inputs for point, 5 volume, and area sources are presented in E xhibits B-4, B-5, and B-6, respectively. These 6 summary tables include the mass fractions, particle diameters, and particle densities associated 7
with each identified emission sour ce. Point source emission rele ase parameters include stack 8 height, stack gas exit temperature and veloci ty, and stack diameter; volume source emission 9 release parameters include releas e height and source dimensions (l ateral and vertical); and area 10 source emission release parameters include releas e height, source area, angle from north, and the 11 initial vertical dimension of the area source plum e. A discussion of modeling results is provided 12 in Chapter 4 of the report. 13

14 Emissions information for the primary Pb smelter was obtained in the form of input files for the 15 Industrial Source Complex - Plume Rise Mode l Enhancements (ISC-PRIME) air dispersion 16
model. These emissions reflect the 2000 Revi sion of the State Implementation Plan (SIP) 17 developed for the facility (MDNR 2000). The f iles included a detailed in put runstream file, an 18 hourly emission file, and an on-site meteorologi cal file with 25 consecutive months of data 19 (April 1, 1997 to April 30, 1999). The ISC-PRIME i nput runstream file included emissions of 20 Pb and release parameters for 99 sources (with fo ur sources having zero emissions). A total of 21 266 tons/year of Pb emissions from processes at the facility, fugitive emissions from transferring 22 of materials, fugitive emissions from storage at the slag pile, and emissions associated with 23 roadway dust were modeled. Each emissi on release point has corresponding location 24 coordinates, terrain elevation, and release parameters required for air dispersion modeling. In 25 addition, the input file contai ned particle size distributions for each source and building 26 downwash parameters (the location and size of each building that ma y affect the air dispersion of 27 the emissions). Particle sizes for emissions from road segment emission points around the 28 primary Pb smelter ranged from 44 to 210 μ m. Particle sizes for emissions from all other 29 emission points at the primary Pb smelter ranged from 6.3 to 45.5 μ m. Emissions and release 30 parameters, particle size inputs, and other m odeling input information is provided in this 31 appendix. 32

33 The location coordinates, provided in Universal Transverse Mercator z one 15 projection in the 34 North American Datum 1927, were confirmed to be accurate by mapping with GIS software and 35 a local aerial photo. The main stack emission release point fell on top of the main stack in the 36 aerial photo, and the other emission release points a ppeared to be correct based on facility maps 37 and the aerial photo. 38

39

40Appendix BAnnual AverageEmission Rate(g/s)Pb30001Main Stack - GEP stackheight (167.67 is actualstack ht)729534 4237767 128.970 7.15 100.75 425 6 10.5240001ADrossing729553 4237849 129.040 0.0103 15.24 297 13.4 3.3540004Dross Kettle Heat Stack729588 4237885 128.280 0.00344 21.3 391.5 0.69 0.7640005Dross Kettle Heat Stack729587 4237895 129.070 0.00344 21.3 391.5 0.69 0.7650001ARefinery729553 4237840 128.820 0.00188 15.24 297 13.4 3.3550001BRefinery729563 4237801 127.810 0.00113 18.29 297 9.1 2.4450011Kettle Setting HeatStack729579 4237787 126.630 0.0033 18.8 989.3 5.96 0.6150012Kettle Setting HeatStack729579 4237796 126.990 0.0033 18.8 989.3 5.96 0.6150013Kettle Setting HeatStack729579 4237805 127.030 0.0033 18.8 989.3 5.96 0.6150014Kettle Setting HeatStack729579 4237813 126.800 0.0033 18.8 989.3 5.96 0.6150015Kettle Setting HeatStack729579 4237822 126.990 0.0033 18.8 989.3 5.96 0.6150016Kettle Setting HeatStack729579 4237831 127.380 0.0033 18.8 989.3 5.96 0.6150017Kettle Setting HeatStack729579 4237840 127.080 0.0033 18.8 989.3 5.96 0.6150018Kettle Setting HeatStack729579 4237849 127.100 0.0033 18.8 989.3 5.96 0.6160001Strip Mill Heat Stack729434 4237560 127.360 0.000113 21.3 699.8 2.73 0.5660002Strip Mill Heat Stack729475 4237560 124.730 0.000113 21.3 699.8 2.73 0.5660003Strip Mill Baghouse729456 4237562 124.990 5.93E-06 7.6 297 7.7 1.0860004Low Alpha Baghouse729477 4237483 125.580 0.00158 6.1 327.6 17.5 0.2560005Strip Mill Vent729440 4237549 126.100 0.00117 16.8 297 5 0.5660006Strip Mill Vent729450 4237549 125.530 0.00117 16.8 297 5 0.5660007Strip Mill Vent729460 4237549 124.970 0.00117 16.8 297 5 0.5660008Strip Mill Vent729470 4237549 124.660 0.00117 16.8 297 5 0.56aLocations confirmed by ICF International using aerial photography from USGS.Exhibit B-1. Emission Release Parameters and Annual Average Emission Rates for Point SourcesPoint Emission ReleasesStackHeight (m)Stack Gas ExitTemperature (K)Stack Gas ExitVelocity (m/s)StackDiameter (m)EMISSIONPOINT IDLOCATIONaEmission PointDescriptionUTMx (m) UTMy (m) Elevation (m)ICF International B-2 DRAFT - December 2006Appendix BAnnual AverageEmission Rate (g/s)Pb10001A Railcar Rotary Dump Fugitives 729547 4238029 131.45 0.00685 6.4 2.33 10.610001B Railcar Rotary Dump Fugitives 729547 4238029 131.45 0.00685 6.4 2.33 10.610001C Railcar Rotary Dump Fugitives 729547 4238029 131.45 0.01483 6.4 2.33 10.610001D Railcar Rotary Dump Fugitives 729518 4237469 123.87 0.00685 2 2.33 020001T Transfer to Trestle Building 729557 4237919 131.25 1.80E-05 18.6 3.1 8.6520001S Transfer to Trestle Building 729544 4237468 120.36 1.80E-05 2 2.33 020002 Sinter Unloading (NE corner of Sinter Building) 729547 4237919 131.610 1.03E-05 3 4.7 19.120003 Sinter Loading/Unloading (Truck/Rail) (At Sinter Building) 729545 4237931 131.550 1.03E-05 2 4.7 0.9320004 Fume Loading 729511 4237971 131.980 0.001236 3 4.7 12.720005A Sinter Mix Room 729519 4237854 130.53 0.00683 18.3 5.11 8.520005B Sinter Mix Room 729519 4237843 130.21 0.00683 18.3 5.11 8.520005C Sinter Mix Room 729519 4237832 130.05 0.00683 18.3 5.11 8.520005D Sinter Mix Room 729519 4237821 129.82 0.00683 18.3 5.11 8.520005E Sinter Mix Room 729519 4237810 129.68 0.00683 18.3 5.11 8.520005F Sinter Mix Room 729519 4237799 129.74 0.00683 18.3 5.11 8.520006 Sinter Building Fugitives 729546 4237904 131.360 0.00962 20 0.2 1820007 #3 Baghouse Roof Vents 729540 4237699 128.490 0.000372 21.3 0.3 10.130002 Blast Furnace 729583 4237960 130.240 0.0024 9.3 18.6 8.6530011 #5 Baghouse Roof Vent 729524 4238016 132.010 0.000248 21.3 0.3 12.730012 #5 Baghouse Roof Vent 729524 4237999 131.940 0.000248 21.3 0.3 12.730013 #5 Baghouse Roof Vent 729524 4237982 131.870 0.000248 21.3 0.3 12.740001 Drossing 729578 4237885 129.810 0.00173 7.62 15.12 7.0950001 Drossing 729578 4237810 126.950 0.0317 5.49 18.6 5.170001 Fugitive Dross Handling 729636 4238220 127.940 0.00089891 2 2.33 070003 Fugitive Concentrate Handling 729518 4237469 123.870 0.003499896 2 2.33 070007 Fugitive Slag Handling 729239 4237241 116.430 0.00034757 2 2.33 070009 Fugitive Secondaries Handling 729492 4237630 128.130 0.00016254 2 2.33 0Exhibit B-2. Emission Release Parameters and Annual Average Emission Rates for Volume SourcesVolume Emission ReleasesRelease Heightabove groundlevel (m)LateralDimension (m)VerticalDimension (m)aLocations confirmed by ICF International using aerial photography from USGS.LOCATIONaUTMx (m) UTMy (m) Elevation (m)EMISSIONPOINT IDEmission Point DescriptionICF InternationalB-3 DRAFT - December 2006Appendix BAnnual AverageEmission Rate(g/s-m2)Pb70002Fugitive DrossWind Erosionyes - emission in thistable is an average 729620 4238201 128.850 0 2 30 40 0 070004FugitiveConcentrate WindErosionyes - emission in thistable is an average 729515 4237391 119.120 0 2 15 150 0 070006Fugitive SinterWind Erosionyes - emission in thistable is an average 729537 4237395 118.500 0 2 15 150 0 070008Fugitive Slag WindErosionyes - emission in thistable is an average 728966 4237118 117.730 1.48614E-06 2 465 200 21 070010FugitiveSecondaries WindErosionyes - emission in thistable is an average 729482 4237609 127.830 0 2 20 40 0 070020 Road Segment A 729383 4237563 132.990 9.57E-06 0 100 10 4 1.39570021 Road Segment A 729385 4237458 126.750 9.57E-06 0 10 100 0 1.39570022 Road Segment A 729381 4237452 127.000 9.57E-06 0 100 10 72 1.39570023 Road Segment A 729413 4237354 120.180 9.57E-06 0 100 10 55 1.39570024 Road Segment A 729482 4237281 118.720 9.57E-06 0 10 100 45 1.39570025 Road Segment A 729552 4237355 117.240 9.57E-06 0 10 100 8 1.39570026 Road Segment A 729565 4237458 118.260 9.57E-06 0 10 100 10 1.39570027 Road Segment A 729569 4237561 121.320 9.57E-06 0 23 45 0 1.39570040 Road Segment B1 729586 4238044 129.750 7.08E-06 0 10 100 5 1.39570041 Road Segment B1 729599 4238140 130.150 7.08E-06 0 10 25 348 1.39570042 Road Segment B1 729590 4238163 130.650 7.08E-06 0 10 25 0 1.39570043 Road Segment B1 729570 4238186 131.370 7.08E-06 0 25 10 0 1.39570044 Road Segment B1 729531 4238090 132.150 7.08E-06 0 10 100 16 1.39570045 Road Segment B1 729515 4238071 132.560 7.08E-06 0 25 10 340 1.39570046 Road Segment B1 729500 4238031 132.380 7.08E-06 0 10 50 6 1.39570047 Road Segment B1 729505 4237982 132.000 7.08E-06 0 10 50 359 1.39570048 Road Segment B1 729493 4237884 131.220 7.08E-06 0 10 100 9 1.39570049 Road Segment B1 729465 4237791 130.760 7.08E-06 0 10 100 15 1.39570050 Road Segment B1 729472 4237717 129.150 7.08E-06 0 10 75 355 1.39570051 Road Segment B1 729474 4237693 128.620 7.08E-06 0 10 25 0 1.395Hourly emissions oremission factors?LOCATIONaUTMx(m)UTMy (m) Elevation (m)Exhibit B-3. Emission Release Parameters and Annual Average Emission Rates for Area SourcesArea Emission ReleasesReleaseHeight (m)Length of xside of area(m)Length of yside of area(m)Angle(° from N)Initial verticaldimension ofthe area sourceplume (m)EMISSIONPOINT IDEmission PointDescriptionICF International B-4 DRAFT - December 2006Appendix BAnnual AverageEmission Rate(g/s-m2)PbHourly emissions oremission factors?LOCATIONaUTMx(m)UTMy (m) Elevation (m)Exhibit B-3. Emission Release Parameters and Annual Average Emission Rates for Area SourcesArea Emission ReleasesReleaseHeight (m)Length of xside of area(m)Length of yside of area(m)Angle(° from N)Initial verticaldimension ofthe area sourceplume (m)EMISSIONPOINT IDEmission PointDescription70052 Road Segment B1 729473 4237682 128.350 7.08E-06 0 25 10 0 1.39570053 Road Segment B1 729518 4237593 125.200 7.08E-06 0 10 100 348 1.39570054 Road Segment B1 729525 4237568 124.860 7.08E-06 0 10 25 345 1.39570055 Road Segment B1 729532 4237559 124.800 7.08E-06 0 75 10 0 1.39570060 Road Segment B2 729565 4237459 118.260 4.06E-06 0 10 100 11 1.39570061 Road Segment B2 729547 4237355 117.490 4.06E-06 0 10 100 11 1.39570062 Road Segment B2 729489 4237288 118.670 4.06E-06 0 10 100 41 1.39570063 Road Segment B2 729415 4237240 116.430 4.06E-06 0 10 100 56 1.39570064 Road Segment B2 729423 4237225 116.430 4.06E-06 0 100 10 59 1.39570070 Road Segment C 729513 4237936 131.810 1.04E-06 0 50 10 0 1.39570071 Road Segment C 729488 4237879 131.170 1.04E-06 0 10 75 12 1.39570072 Road Segment C 729463 4237789 130.800 1.04E-06 0 10 100 16 1.39570073 Road Segment C 729474 4237717 129.040 1.04E-06 0 10 75 353 1.39570074 Road Segment C 729473 4237694 128.660 1.04E-06 0 10 25 0 1.39570075 Road Segment C 729471 4237683 128.470 1.04E-06 0 25 10 0 1.39570076 Road Segment C 729517 4237595 125.250 1.04E-06 0 10 100 347 1.39570077 Road Segment C 729524 4237568 124.870 1.04E-06 0 10 25 347 1.39570078 Road Segment C 729531 4237556 124.860 1.04E-06 0 25 10 0 1.39570079 Road Segment C 729556 4237457 118.830 1.04E-06 0 10 100 0 1.39570080 Road Segment D 729466 4237790 130.740 1.51E-06 0 10 100 15 1.39570081 Road Segment D 729477 4237719 128.980 1.51E-06 0 10 75 352 1.39570082 Road Segment D 729471 4237667 128.240 1.51E-06 0 10 50 0 1.39570083 Road Segment D 729446 4237667 128.290 1.51E-06 0 25 10 0 1.39570084 Road Segment D 729436 4237577 126.960 1.51E-06 0 10 100 0 1.39570085 Road Segment D 729451 4237575 125.210 1.51E-06 0 100 10 11 1.395aLocations confirmed by ICF International using aerial photography from USGS.ICF International B-5 DRAFT - December 2006Appendix BBin1 Bin2 Bin3 Bin4 Bin5 Bin6 Bin7 Bin1 Bin2 Bin3 Bin4 Bin5 Bin6 Bin730001Main Stack - GEP stackheight (167.67 is actualstack ht)0.260 0.525 0.112 0.000 0.104 0.000 0.000 6.3 15.9 25.7 35.6 45.5 55.4 65.3 5.3540001ADrossing0.285 0.447 0.041 0.000 0.228 0.000 0.000 6.3 15.9 25.7 35.6 45.5 55.4 65.3 5.7240004Dross Kettle Heat Stack0.285 0.447 0.041 0.000 0.228 0.000 0.000 6.3 15.9 25.7 35.6 45.5 55.4 65.3 5.7240005Dross Kettle Heat Stack0.285 0.447 0.041 0.000 0.228 0.000 0.000 6.3 15.9 25.7 35.6 45.5 55.4 65.3 5.7250001ARefinery0.149 0.641 0.211 0.000 0.000 0.000 0.000 6.3 15.9 25.7 35.6 45.5 55.4 65.3 5.8650001BRefinery0.149 0.641 0.211 0.000 0.000 0.000 0.000 6.3 15.9 25.7 35.6 45.5 55.4 65.3 5.8650011Kettle Setting HeatStack0.149 0.641 0.211 0.000 0.000 0.000 0.000 6.3 15.9 25.7 35.6 45.5 55.4 65.3 5.8650012Kettle Setting HeatStack0.149 0.641 0.211 0.000 0.000 0.000 0.000 6.3 15.9 25.7 35.6 45.5 55.4 65.3 5.8650013Kettle Setting HeatStack0.149 0.641 0.211 0.000 0.000 0.000 0.000 6.3 15.9 25.7 35.6 45.5 55.4 65.3 5.8650014Kettle Setting HeatStack0.149 0.641 0.211 0.000 0.000 0.000 0.000 6.3 15.9 25.7 35.6 45.5 55.4 65.3 5.8650015Kettle Setting HeatStack0.149 0.641 0.211 0.000 0.000 0.000 0.000 6.3 15.9 25.7 35.6 45.5 55.4 65.3 5.8650016Kettle Setting HeatStack0.149 0.641 0.211 0.000 0.000 0.000 0.000 6.3 15.9 25.7 35.6 45.5 55.4 65.3 5.8650017Kettle Setting HeatStack0.149 0.641 0.211 0.000 0.000 0.000 0.000 6.3 15.9 25.7 35.6 45.5 55.4 65.3 5.8650018Kettle Setting HeatStack0.149 0.641 0.211 0.000 0.000 0.000 0.000 6.3 15.9 25.7 35.6 45.5 55.4 65.3 5.8660001Strip Mill Heat Stack0.149 0.641 0.211 0.000 0.000 0.000 0.000 6.3 15.9 25.7 35.6 45.5 55.4 65.3 5.8660002Strip Mill Heat Stack0.149 0.641 0.211 0.000 0.000 0.000 0.000 6.3 15.9 25.7 35.6 45.5 55.4 65.3 5.8660003Strip Mill Baghouse0.149 0.641 0.211 0.000 0.000 0.000 0.000 6.3 15.9 25.7 35.6 45.5 55.4 65.3 5.8660004Low Alpha Baghouse0.149 0.641 0.211 0.000 0.000 0.000 0.000 6.3 15.9 25.7 35.6 45.5 55.4 65.3 5.8660005Strip Mill Vent0.149 0.641 0.211 0.000 0.000 0.000 0.000 6.3 15.9 25.7 35.6 45.5 55.4 65.3 5.86Emission PointDescriptionPARTICLEDENSITY(g/cm3)Exhibit B-4. Particle Size Distribution Inputs for Point SourcesEmissionPoint IDMASS FRACTION PARTICLE DIAMETER (μm)ICF International B-6 DRAFT - December 2006Appendix BBin1 Bin2 Bin3 Bin4 Bin5 Bin6 Bin7 Bin1 Bin2 Bin3 Bin4 Bin5 Bin6 Bin7Emission PointDescriptionPARTICLEDENSITY(g/cm3)Exhibit B-4. Particle Size Distribution Inputs for Point SourcesEmissionPoint IDMASS FRACTION PARTICLE DIAMETER (μm)60006Strip Mill Vent0.149 0.641 0.211 0.000 0.000 0.000 0.000 6.3 15.9 25.7 35.6 45.5 55.4 65.3 5.8660007Strip Mill Vent0.149 0.641 0.211 0.000 0.000 0.000 0.000 6.3 15.9 25.7 35.6 45.5 55.4 65.3 5.8660008Strip Mill Vent0.149 0.641 0.211 0.000 0.000 0.000 0.000 6.3 15.9 25.7 35.6 45.5 55.4 65.3 5.86ICF International B-7 DRAFT - December 2006Appendix BBin1 Bin2 Bin3 Bin4 Bin5 Bin6 Bin7 Bin1 Bin2 Bin3 Bin4 Bin5 Bin6 Bin710001ARailcar RotaryDump Fugitives0.260 0.525 0.112 0.000 0.104 0.000 0.000 6.288 15.88 25.678 35.562 45.474 55.398 65.329 5.3510001BRailcar RotaryDump Fugitives0.260 0.525 0.112 0.000 0.104 0.000 0.000 6.288 15.88 25.678 35.562 45.474 55.398 65.329 5.3510001CRailcar RotaryDump Fugitives0.260 0.525 0.118 0.000 0.104 0.000 0.000 6.288 15.88 25.678 35.562 45.47 55.398 65.329 5.3510001DRailcar RotaryDump Fugitives0.260 0.525 0.112 0.000 0.104 0.000 0.000 6.288 15.88 25.678 35.562 45.474 55.398 65.329 5.3520001TTransfer to TrestleBuilding0.260 0.525 0.112 0.000 0.104 0.000 0.000 6.288 15.88 25.678 35.562 45.474 55.398 65.329 5.3520001STransfer to TrestleBuilding0.260 0.525 0.112 0.000 0.104 0.000 0.000 6.288 15.88 25.678 35.562 45.474 55.398 65.329 5.3520002Sinter Unloading(NE corner ofSinter Building)0.260 0.525 0.112 0.000 0.104 0.000 0.000 6.288 15.88 25.678 35.562 45.474 55.398 65.329 5.3520003Sinter Loading/Unloading(Truck/Rail) (AtSinter Building)0.260 0.525 0.112 0.000 0.104 0.000 0.000 6.288 15.88 25.678 35.562 45.474 55.398 65.329 5.3520004Fume Loading0.260 0.525 0.112 0.000 0.104 0.000 0.000 6.288 15.88 25.678 35.562 45.474 55.398 65.329 5.3520005ASinter Mix Room0.260 0.525 0.112 0.000 0.104 0.000 0.000 6.288 15.88 25.678 35.562 45.474 55.398 65.329 5.3520005BSinter Mix Room0.260 0.525 0.112 0.000 0.104 0.000 0.000 6.288 15.88 25.678 35.562 45.474 55.398 65.329 5.3520005CSinter Mix Room0.260 0.525 0.112 0.000 0.104 0.000 0.000 6.288 15.88 25.678 35.562 45.474 55.398 65.329 5.3520005DSinter Mix Room0.260 0.525 0.112 0.000 0.104 0.000 0.000 6.288 15.88 25.678 35.562 45.474 55.398 65.329 5.3520005ESinter Mix Room0.260 0.525 0.112 0.000 0.104 0.000 0.000 6.288 15.88 25.678 35.562 45.474 55.398 65.329 5.3520005FSinter Mix Room0.260 0.525 0.112 0.000 0.104 0.000 0.000 6.288 15.88 25.678 35.562 45.474 55.398 65.329 5.3520006Sinter BuildingFugitives0.260 0.525 0.112 0.000 0.104 0.000 0.000 6.288 15.88 25.678 35.562 45.474 55.398 65.329 5.3520007#3 Baghouse RoofVents0.260 0.525 0.112 0.000 0.104 0.000 0.000 6.288 15.88 25.678 35.562 45.474 55.398 65.329 5.3530002Blast Furnace0.241 0.526 0.124 0.109 0.000 0.000 0.000 6.288 15.88 25.678 35.562 45.474 55.398 65.329 4.9930011#5 Baghouse RoofVent0.241 0.526 0.124 0.109 0.000 0.000 0.000 6.288 15.88 25.678 35.562 45.474 55.398 65.329 4.9930012#5 Baghouse RoofVent0.241 0.526 0.124 0.109 0.000 0.000 0.000 6.288 15.88 25.678 35.562 45.474 55.398 65.329 4.99PARTICLEDENSITY(g/cm3)Exhibit B-5. Particle Size Distribution Inputs for Volume SourcesEmissionPoint IDEmission PointDescriptionMASS FRACTION PARTICLE DIAMETER (μm)ICF International B-8 DRAFT - December 2006Appendix BBin1 Bin2 Bin3 Bin4 Bin5 Bin6 Bin7 Bin1 Bin2 Bin3 Bin4 Bin5 Bin6 Bin7PARTICLEDENSITY(g/cm3)Exhibit B-5. Particle Size Distribution Inputs for Volume SourcesEmissionPoint IDEmission PointDescriptionMASS FRACTION PARTICLE DIAMETER (μm)30013#5 Baghouse RoofVent0.241 0.526 0.124 0.109 0.000 0.000 0.000 6.288 15.88 25.678 35.562 45.474 55.398 65.329 4.9940001Drossing0.285 0.447 0.041 0.000 0.228 0.000 0.000 6.288 15.88 25.678 35.562 45.474 55.398 65.329 5.7250001Drossing0.149 0.641 0.211 0.000 0.000 0.000 0.000 6.288 15.88 25.678 35.562 45.474 55.398 65.329 5.8670001Fugitive DrossHandling0.285 0.447 0.041 0.000 0.228 0.000 0.000 6.288 15.88 25.678 35.562 45.474 55.398 65.329 5.7270003FugitiveConcentrateHandling0.260 0.525 0.112 0.000 0.104 0.000 0.000 6.288 15.88 25.678 35.562 45.474 55.398 65.329 5.3570007Fugitive SlagHandling0.260 0.525 0.112 0.000 0.104 0.000 0.000 6.288 15.88 25.678 35.562 45.474 55.398 65.329 5.3570009FugitiveSecondariesHandling0.260 0.525 0.112 0.000 0.104 0.000 0.000 6.288 15.88 25.678 35.562 45.474 55.398 65.329 5.35ICF International B-9 DRAFT - December 2006Appendix BBin1 Bin2 Bin3 Bin4 Bin5 Bin6 Bin7 Bin1 Bin2 Bin3 Bin4 Bin5 Bin6 Bin770002Fugitive DrossWind Erosion0.285 0.447 0.041 0.000 0.228 0.000 0.000 6.29 15.88 25.68 35.56 45.47 55.40 65.33 5.7270004FugitiveConcentrate WindErosion0.260 0.525 0.112 0.000 0.104 0.000 0.000 6.29 15.88 25.68 35.56 45.47 55.40 65.33 5.3570006Fugitive SinterWind Erosion0.260 0.525 0.112 0.000 0.104 0.000 0.000 6.29 15.88 25.68 35.56 45.47 55.40 65.33 5.3570008Fugitive Slag WindErosion0.260 0.525 0.112 0.000 0.104 0.000 0.000 6.29 15.88 25.68 35.56 45.47 55.40 65.33 5.3570010FugitiveSecondaries WindErosion0.260 0.525 0.112 0.000 0.104 0.000 0.000 6.29 15.88 25.68 35.56 45.47 55.40 65.33 5.3570020Road Segment A0.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570021Road Segment A0.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570022Road Segment A0.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570023Road Segment A0.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570024Road Segment A0.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570025Road Segment A0.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570026Road Segment A0.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570027Road Segment A0.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570040Road Segment B10.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570041Road Segment B10.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570042Road Segment B10.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570043Road Segment B10.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.35PARTICLEDENSITY(g/cm3)Exhibit B-6. Particle Size Distribution Inputs for Area SourcesEmissionPoint IDEmission PointDescriptionMASS FRACTION PARTICLE DIAMETER (μm)ICF International B-10 DRAFT - December 2006Appendix BBin1 Bin2 Bin3 Bin4 Bin5 Bin6 Bin7 Bin1 Bin2 Bin3 Bin4 Bin5 Bin6 Bin7PARTICLEDENSITY(g/cm3)Exhibit B-6. Particle Size Distribution Inputs for Area SourcesEmissionPoint IDEmission PointDescriptionMASS FRACTION PARTICLE DIAMETER (μm)70044Road Segment B10.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570045Road Segment B10.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570046Road Segment B10.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570047Road Segment B10.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570048Road Segment B10.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570049Road Segment B10.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570050Road Segment B10.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570051Road Segment B10.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570052Road Segment B10.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570053Road Segment B10.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570054Road Segment B10.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570055Road Segment B10.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570060Road Segment B20.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570061Road Segment B20.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570062Raod Segment B20.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570063Road Segment B20.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570064Road Segment B20.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570070Road Segment C0.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.35ICF International B-11 DRAFT - December 2006Appendix BBin1 Bin2 Bin3 Bin4 Bin5 Bin6 Bin7 Bin1 Bin2 Bin3 Bin4 Bin5 Bin6 Bin7PARTICLEDENSITY(g/cm3)Exhibit B-6. Particle Size Distribution Inputs for Area SourcesEmissionPoint IDEmission PointDescriptionMASS FRACTION PARTICLE DIAMETER (μm)70071Road Segment C0.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570072Road Segment C0.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570073Raod Segment C0.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570074Road Segment C0.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570075Road Segment C0.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570076Road Segment C0.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570077Road Segment C0.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570078Road Segment C0.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570079Road Segment C0.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570080Road Segment D0.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570081Road Segment D0.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570082Road Segment D0.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570083Road Segment D0.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570084Road Segment D0.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.3570085Road Segment D0.159 0.553 0.216 0.061 0.009 0.002 0.004 44.00 48.63 64.07 90.38 128.25 181.21 210.00 5.35ICF International B-12 DRAFT - December 2006

## Appendix B



## References 1

2

3

4

5

6

7 Missouri Department of Natural Resources (MDNR). (2000) 2000 Revision of the State Implementation Plan for Lead for the Doe Run Resources Corporation Primary Lead Smelter Herculaneum, Missouri, Public Hearing – October 26, 2000. Jefferson City, MO: Air Pollution Control Program, Division of Environmental Quality. October.

ICF International B-13 DRAFT – December 2006

# Appendix C

Emissions and Modeling Parameters for the Secondary Pb Smelter

## Appendix C



## 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38 Appendix C includes a discussion and summary of the secondary Pb smelter facility’s emission and source input parameters. Exhibit C-1 presents a summary of the emission release parameters and average annual emission rate for the four point sources and one area source at the secondary Pb smelter. Emission release parameters for poi nt sources include stack height, stack gas exit temperature, stack gas exit velocity, and stack diameter; area source emission release parameters include release height, source area, angle, and initial ver tical dimension of the area source plume. Exhibit C-2 presents a summary of particle size distribution inputs for the point and area emissions sources, including par ticle mass fractions, diameters, and density. A discussion of modeling results is provided in Chapter 4 of the report.

The estimates for process emissions for the secondary Pb smelter were calculated from Pb emissions measured during stack tests pe rformed in December 1997, November 1999, and February 2000 (ECR 2006). Thus, the emissions represent actual emissi ons during that time period. Fugitive emissions were estimated by comparing the modeled stack emissions concentrations, background Pb con centrations, and monitored Pb c oncentrations. The fraction of
the measured Pb concentration in air that coul d not be attributed to known sources was assumed to be from fugitive emissions, and a statistical analysis was conducted to generate fugitive Pb emission factors (ECR 2006). A total of 4.56 tons /year of Pb emissions from processes and fugitive emissions at the facility were modeled.

Stack parameters, fugitive release parameters, the location of each emission source, particle size information, and building downwash parameters were also obtained from ECR (2006). The particle size information used for deposition modeling was derived from AP-42 particle distributions for melting, smelti ng, refining metals, and fugitive dust emissions (USEPA 1995).
Flat terrain was used for the model runs because there is minimal elevation change in the area. Particle sizes for emissions from point sources at the secondary Pb smelter ranged from 0.5 to 10

μ m, and particle sizes for emissions from area so urces at the secondary Pb smelter ranged from

1.25 to 22.5 μ m. Emissions and release parameters, particle size inputs, and other modeling input information is prov ided in this appendix.

It was confirmed that the locati on coordinates, provide d in the Universal Transverse Mercator zone 16 projection in the North Ameri can Datum 1983, were accurate by mapping the coordinates with GIS software and examining a local aerial photo. Th e emission release points appeared to be correct based on the aerial photo. Five years of mete orological data were compiled for use in the air dispersion mode ling. Surface data from Montgomery, Alabama (NOAA 1997a) and upper air data from Center ville, Alabama (NOAA 1997b) from 1990 to 1994 were used. The meteorological data are limited because they are not site-specific and may not fully represent conditions at the facility.

ICF International C-1 DRAFT – December 2006Appendix CActualAnnualAverageEmissionRate (g/s)bActualAnnualAverageEmissionRate(g/s-m2)Pb PbStack1 596705 3517220NApoint 3.01E-02 54.9 366.3 36.6 1.2Stack4 596810 3517275NApoint 3.17E-03 27.4 338.6 32.3 0.9Stack5 596715 3517220NApoint 5.14E-02 54.9 366.3 25.3 1.2Stack10 596766 3517210NApoint 8.47E-03 9.1 294.1 23.8 1.1Area 596814 3517435NAarea 3.18E-07 0 400 300 125 0aLocations confirmed by ICF International using aerial photography from USGS.bEmissions confirmed by stack test in December 1997, November 1999 and February 2000.Stack GasExitTemperature(K)Lengthof ySide ofArea(m)Angle(° fromN)InitialVerticalDimensionof the AreaSourcePlume(m)StackGas ExitVelocity(m/s)StackDiameter(m)ReleaseHeight(m)Lengthof x Sideof Area(m)LOCATIONaSOURCETYPE(Point,Area, orVolume)EMISSIONPOINT IDExhibit C-1. Secondary Pb Smelter Emission Release Parameters and Annual Average Emission RatesPOINT SOURCES AREA SOURCESUTMx(m) UTMy (m)Elevation(m)StackHeight(m)ICF International C-2 DRAFT - December 2006

## Appendix C



## Exhibit C-2. Secondary Pb Smelter Particle Size Distribution Inputs

Particle Size

Distributions Fraction of

Particles Mean

Diameter

( μ m) Particle Density
(g/cm 3 

### )

Source Type

Point 0.72 0.5 1

0.08 1.5 1

0.04 2.5 1

0.04 4 1

0.12 10 1

Area 0.05 1.25 1.5

0.15 6.25 1.5

0.04 22.5 1.5

0.77 22.5 1.5



## ICF International C-3 DRAFT - December 2006

## Appendix C

ICF International C-4 DRAFT – December 2006 

## References 1

EC/R Incorporated. (2006) Secondary Lead Smelter Industry – Source Characterization for 2
Residual Risk Assessment. Prepared for USEPA Office of Ai r and Radiation, Office of Air 3 Quality Planning and Standards, Research Triangle Park, NC. November. 4

National Oceanic and Atmospheri c Administration (NOAA). (1997a) Hourly United States 5
Weather Observations 1990-1995. Asheville, NC: National Climatic Data Center (NCDC). 6

National Oceanic and Atmospheri c Administration (NOAA). (1997b) Rediosonde Data of North 7

America. Asheville, NC: National Climatic Data Center. 8

U.S. Environmental Protection Agency (USEPA). (1995) Compilation of Ai r Pollutant Emission 9 Factors, Volume I: Stationary Point and Area Sources. AP-42 Fifth Edition. Research Triangle 10 Park: Office of Air Quality Planning and Standards. January. Available at 11 http://www.epa.gov/ttn/chief/ap42/. 12

13

# Appendix D

Supplemental Information for the Near Roadway Urban Case Study

## Appendix D

ICF International D- 

## 1 DRAFT – December 2006 

## Appendix D presents an additional description of the characteristics and data associated with the 1 near roadway urban case study. These data incl ude demographic data summaries of the area 2 immediately surrounding the road segments of interest (Exhibit D-1) ; air monitoring data 3
obtained from different networks of air monitors or studies of air quali ty (Exhibits D-2, D-3, D4 4, and D-5); soil measurements, or “surrogate” soil measurements for the area of interest (Exhibit 5 D-6; no relevant and proximate data on Houston soil Pb concentr ations were identified); and 6
modeled indoor dust concentrations for each census block located inside (or partially overlapping 7 with) the study area (Exhibit D-7). Additional descriptive information regarding the near 8 roadway urban case study is included in Chap ter 3 of the report; a discussion of media 9
concentrations associated with this case study is provided in Chapter 4. 10

## Appendix D

ICF International D- 

## 2 DRAFT – December 2006 

## D.1 Demographic Data 1

2 Demographic data for this location were obtaine d from the U.S. Census for each census block 3 overlapping part of the study area. In order to estimate populations a nd derive demographic 4 characteristics separately for each of the th ree zones within the study area and account for 5 differences in size and shape between the zones and overlapping census bloc ks, an area-weighted 6 average was calculated. Block polygons keyed to 15-digit FIPS code s with known areas (m 2 

## ), 7 population, household, and housing unit counts 1 

## were superimposed on the study area, and the 8 area of each block polygon overlapping with pa rt of a study zone was calculated. These 9 demographic data and overlap areas were used to calculate area-weighted estimates of 10 population, household, and housing unit counts for each zone. The number of children age 7 11 years and under residing in each zone was estimated as the product of the ratio of children to 12 total population for each overlapping block and the population for these blocks estimated to fall 13
within each zone. These calculations assume an even distribution of population and housing 14 locations across a census block. Demographic information for each zone is summarized in 15
Exhibit D-1. 16

17 Exhibit D-1. Demographic Inform ation for Roadside Scenario 18

Zone Within Study Area Area (m 2 

### ) Total
Estimated Population Estimated Population

Ages 0-7 Number of
Households Number of Housing Units

0 to 12 m 38,621 49 7 17 17

12 to 75 m 320,468 537 84 176 190

75 to 200 m 680,582 1369 228 429 459


## 19 D.2 Air Monitoring Data 20

21 Ambient air monitoring data for Pb are av ailable for two particle size fractions, PM 2.5 

## and PM 10 

## , 22 over the course of three days in February 2001 from a study focused on roadway contributions to 23 air quality (ICF 2006). The samp ler was located at 4011⁄2 Lang Avenue . This location is situated 24 in a small park adjacent to residential neighbor hoods and commercial areas. Lang Avenue is a 25 relatively small neighborhood road used by local tra ffic, with a single lane in each direction and 26 no median. Three major roads are in the near vici nity of the sampler locat ion: one located about 27 100 meters to the west; one located about 115 mete rs to the south (selec ted as the roadway of 28 interest for this case study); and one lo cated about 275 meters to the northeast. 29

30 Daily average concentrations were reported for three consecutive dates. Overall, average Pb 31 concentrations for the Houston site were 0.0035 μg/m 3 

## for PM 2.5 

## and 0.0050 μg/m 3 

## for PM 10



## . 32 Daily average concentrations of ambient Pb asso ciated with each partic le size fraction assessed 33 for the three sampling dates are presented in Exhibit D-2. 34

1 

### The U.S. Census defines a housing unit as a house, an apartment, a mobile home, a group of rooms, or a single room that is occupied (or if vacant, is intended for occupancy) as separate living quarters. Separate living quarters are those in which the occupants live and eat separately from any other persons in the building and which have
direct access from the outside of the bu ilding or through a common hall. The occupants may be a single family, one person living alone, two or more families living together, or any other group of related or unrelated persons who share living arrangements. The Census defines a household as including “all the persons who occupy a housing
unit.”

## Appendix D

ICF International D- 

## 3 DRAFT – December 2006 

## Exhibit D-2. Air Monitoring Data for Pb, DRI Site in Houston, Texas 1

Daily Average Pb Concentration, μg/m 3 

### Sampling Date PM 2.5 

### Fraction PM 10 

### Fraction

2/1/01 0.0018 0.0053

2/2/01 0.0033 0.0045

2/3/01 0.0035 0.0056
Average 0.0030 0.0050



## 2 Six sets of ambient Pb concentrations are also available in EPA’s Air Quality System (AQS) for 3
three locations in Hous ton, including two from 1999 and f our from 2005 (USEPA 2006). Mean 4 concentrations for each set of measurements from AQS are summarized in Exhibit D-3. Because 5 these measurements were taken in developed urba n or suburban locations (a nd they are identified 6 by street address), it seems likely that the monito ring stations for each were located close to a 7 roadway; however, no information was available from AQS regarding how close to the roadway 8 these monitoring stations are located. 9

10 Exhibit D-3. AQS Ambient Pb Measurements for Houston 11

Particle
Size
Fraction Year No. of
Observations Location Reported Land Use/Location Type Mean of Data Set (μg/m 3 

### )

1999 48 1262 1⁄2 Mae Dr. Commercial/urban and center city 0.005

TSP

2005 35 1262 1⁄2 Mae Dr. Commercial/urban and center city 0.016

1999 81 9525 Clinton Dr. Industrial/suburban 0.007 PM 10 

### 2005 59 9525 Clinton Dr. Industrial/suburban 0.006

2005 72 6400 Bissonnet St. Residential/urban and center city 0.0031

PM 2.5 

### 2005 35 1262 1⁄2 Mae Dr. Commercial/urban and center city 0.0029



## 12 Additionally, it is useful to compare Pb concentra tions in Houston to those reported for the other 13 five near roadway sampling locations where DRI conducted PM measurements in 2000 and 2001 14 (ICF 2006). Average Pb concentrations for the PM 10 

## size fraction from the other five DRI 15 monitoring sites are presented in Exhibit D-4. 16

17 Exhibit D-4. Average Measured PM 10 

## Pb Concentrations for DRI Monitoring Locations 18 (Other than Houston) a 

## 19

Location Measurement Dates Average Pb Concentration (μg/m 3 

### )

Birmingham, AL Dec. 17 and 19, 2000 0.0024

Las Vegas, NV Feb. 20 and 22-23, 2001 0.00296

El Paso, TX March 3 and 9-11, 2001 0.00708
Albany, NY Dec. 8-9, 2000 0.0123
Long Beach, CA Feb. 16-17, 2001 0.0164

a 

### ICF 2006 

## 20

21

## Appendix D

ICF International D- 

## 4 DRAFT – December 2006 

## For additional comparison, the average annual PM 10 

## Pb concentrations from AirData monitor 1
results across the United States for the year 2005 (USEPA 2006) were compared to the average 2

PM 10 

## Pb concentration for the DRI site in Houston of 0.0030 μ g/m 3 

## . Exhibit D-5 shows the 3
distribution of PM 10 

## Pb for 36 monitors across the United States (with average monitored Pb 4 concentrations sorted in ascending order). The average PM 10 

## Pb concentrations detected at the 5 36 monitors ranged from 0.0018 to 0.04 μ g/m 3 

## . The average PM 10 

## Pb concentration for the DRI 6 site in Houston is indicated on the figure. 7

8 Exhibit D-5. Average Annual PM 10 

## Across the United States for 2005 9 Compared to PM 10 

## at the Houston DRI Site 10

0 0.005 0.01 0.015 0.02 0.025 0.03 0.035 0.04Average Lead PM10 (ug/m3)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

### Monitor (N=36)



## 11 12
D.3 Soil Measurements 13

14
No soil measurements were iden tified in close proximity to this study area. Consequently, 15 surrogate data for Houston or a similar location were sought through a liter ature search. Several 16 studies were identified that reported Pb concentr ations in surface soil adjacent to United States 17 and Canadian roadways, as well as related info rmation on Pb levels on road surfaces and in 18
urban areas. Relevant information from this literature search is summarized in Exhibit D-6. As 19 described in Sections 3.3.4 and 4.3.3, Pb measur ements reported by Turer and Maynard (2003) 20 for surface soil near an interstate entrance ramp in Corpus Christi, Texas were used to derive the 21
soil concentrations used in th e near roadway urban case study. 22

23 Exhibit D-6 is intended to convey the most releva nt soil measurements that were identified with 24 regard to the near roadway urban case study (i .e., surface soil measurements from a near 25 roadway location). As a result, only studies th at conducted measurements in soil in the recent 26 past (approximately within the last decade) ar e included here. In many instances, additional 27 measurements were collected or other analys es using the results were conducted by the 28 investigators; these details ar e not included here. Informati on in this exhibit is ordered 29 alphabetically by primary author. 30

31 Houston DRI Site = 0.0050 μ g/m 3

## Appendix D

ICF International D- 

## 5 DRAFT – December 2006 

## Exhibit D-6. Selected Data – Pb in Surface Soil Near Roadways

and Related Urban Measurements

Study
Citation Location and Sampling
Scheme Reported Pb Concentration(s) (total Pb unless otherwise specified) Other Relevant Information

Chinreje et
al. 2004 • 

### Gainesville, FL (relatively undeveloped, low population/traffic density) and Miami, FL (developed, high population/traffic density)

• 

### Sampled locations

according to land use characterization residential, commercial, public parks, public buildings • 

### Miami: median 98 ppm; 55% of samples were 51- 200 ppm

• 

### Gainesville: median 15

ppm; 87% of samples <50

ppm • 

### Concluded lower Pb in
Gainesville was due to lower inputs (low indu strial activity, less traffic) but also increased Pb mobility/low retention (lower pH, OC, and clay content vs. Miami soils).

• 

### Pb patterns with land use

slightly different between 2
cities. Residential and commercial areas generally higher in Pb.

Filippelli et
al. 2005 • 

### Indianapolis, IN

• 

### Sampled on transects

along urban and suburban roadways; 10-40 m from
road

• 

### Surface sample depth: 0-5

cm • 

### Urban roadways: 400 to >900 ppm

• 

### Suburban roadways: 100 to

<200 ppm • 

### Concentrations diminished with increasing distance from
roadside.

• 

### Also sampled at various urban

locations to investigate Pb from diffuse (non-specific) sources.

• 

### Conducted predictive blood-Pb

modeling using soil
measurements.

Gillies et al.
1999 • 

### Urban Nevada

• 

### Sampled dust at surface of

soil or paved road

• 

### Sampling locations

included playas (dry lake bed/salt flat), paved roads,
and construction sites • 

### Reported relative
abundance of Pb in PM 2.5 

### by weight percent

• 

### Playa and construction site

0.001-0.01%

• 

### Paved road 0.01-0.1%

• 

### Approx. enrichment factors

of Pb in PM 2.5 

### : playa ~1-10; paved road ~30;
construction site ~5-10

• 

### Pb enrichment factors

slightly lower for PM 10-2.5

μ m for playa and paved road; approx. same for
construction site • 

### Results were used in source apportionment analysis for resuspended PM.

Hafen and
Brinkmann
1996 • 

### Tampa, FL

• 

### Sampled 32 transects at

roadways, 7 samples per transect; 3 cm to 2.2 m from road; surface sample depth: 0-3 cm

• 

### 224 samples total, 7

samples/transect • 

### Range: 40 to 3,360 ppm

• 

### Mean Pb concentrations by

distance from road were relatively tightly clustered; means ranged from 200 ppm (>0.8 m) to 440 ppm (0.24 m) • 

### Looked for trends in
concentration with distance and
other factors on a near-term scale (within 2.2 m of road); weak negative correlation with distance from roadway
observed.

Lejano and
Ericson
2005 • 

### Pacoima, CA (near Los Angeles)

• 

### 210 samples at transects

along freeways spaced about 1 km apart; surface sample depth: 0-2.54 cm; samples collected from
within 150 m of the roadway Total range not presented;
mean concentrations of 5 roadways range from 43 to 112 ppm (mean for one road up to 232 ppm if one outlier included) • 

### Mean concentrations for 3 “nonvehicular” sample sites: 52, 67, 111 ppm.

• 

### Concluded that historical

vehicular emissions appear to be primary and most
bioavailable source of Pb in
soil.

## Appendix D

ICF International D- 

## 6 DRAFT – December 2006 

## Exhibit D-6. Selected Data – Pb in Surface Soil Near Roadways

and Related Urban Measurements

Study
Citation Location and Sampling
Scheme Reported Pb Concentration(s) (total Pb unless otherwise specified) Other Relevant Information

Li 2006 • 

### Burnaby, Canada

• 

### Three transects across

highway; samples at 0.1 m
intervals from road

• 

### 139 samples from 17

borehole locations; surface sample depth: 0-10 cm Results for three transects:

• 

### (lower traffic/speed): 7-1020

ppm

• 

### 25-925 ppm

• 

### 303-1650 ppm • 

### Sequential extractions were also performed to check sorption/bioavailability.

Li and
Preciado
2004 • 

### British Columbia, Canada, Hwy. 17

• 

### 2 transects along highway;

0 to 10 m from road; 1 m
intervals

• 

### Surface sample depth: 0-5

cm

• 

### Also sampled on-road dust

and measured Pb deposition rates adjacent to roadway • 

### Roadside soil results: ~100 ppm for samples 0 m from roadside; <50 ppm for all samples 1-10 m from
roadside

• 

### On-road dust: Pb content

ranged from 51-181 mg/kg • 

### PM deposition adjacent to road decreases by ~half within 10 m of roadway

• 

### Pb deposition rates on soils

within 12 m of roadway range
from 1.5 to 5 μ g/m 2 

### -day; no clear pattern vs. distance.

Sheets et
al. 2001 • 

### Springfield, MO

• 

### Multiple sampling locations,

including 3 near heavytraffic streets and 2 more
than 30 m from residential

street

• 

### Surface sampling depth: 0-

1 cm • 

### Averages for surface samples at 5 roadside locations ranged from 18- 179 ppm • 

### Correlates soil measurements
taken in 1999 with airborne Pb monitoring from 1979-1984 (when gasoline was leaded)

Shinn et al.
2000 • 

### Chicago, IL; sampled bare
soil in 4-block urban
residential area and measured Pb; developed surface plots of Pb levels via kriging

• 

### Analyzed patterns by

reviewing historical data for potential sources • 

### Mean soil Pb – 2180 ppm; median – 1775 ppm; range was 175-7935 ppm • 

### Pb distribution in soil indicates
non-random Pb sources

• 

### Pb surface soil patterns linked

to existing and previous potential sources within study area as well as nearby street with high traffic volume.

Speiran
1998 • 

### Interstate 95 north of Richmond, VA (Exit 86 to amoderately traveled, twolane road)

• 

### 59 soil samples from 19

sites

• 

### Varying distances from

interstate and exit ramp

• 

### Surface sampling depth: 0-

7.6 cm • 

### Range: 46 to 1200 ppm • 

### Spatial variations in
concentrations indicate that highway lanes were a source of metals, including Pb.

• 

### Concentrations decrease with

increasing distance from
roadside.

## Appendix D

ICF International D- 

## 7 DRAFT – December 2006 

## Exhibit D-6. Selected Data – Pb in Surface Soil Near Roadways

and Related Urban Measurements

Study
Citation Location and Sampling
Scheme Reported Pb Concentration(s) (total Pb unless otherwise specified) Other Relevant Information

Sutherland
and Tolosa
2001 • 

### Manoa basin, Oahu, Hawaii

• 

### Sampled 2 transects at low

speed roadways (near park and school) out to 50 m
from road

• 

### First sample (0 m) from

“road deposited sediment (RDS)” – curbside area at edge of road

• 

### Surface sampling depth: 0

to 2.5 cm • 

### Park transect: max of 375 ppm (5 m from road); RDS 285 ppm

• 

### School transect: max of

200 ppm in RDS; all soil samples 25-50 ppm, out to
50 m

• 

### Measurements for both

transects drop to <50 ppm
within 5-10 m

• 

### Local background soil

concentrations reported as 12-13 ppm • 

### Concluded that “urban architecture” (sidewalks, grass, topography) impacts Pb
concentrations.

• 

### Pb conc. vs. distance plotted

using data from 10 studies from 1970s-1980s; relationship generally linear when log of
concentration and distance are
used.

• 

### 5 supplemental soil samples

collected from grass-covered
recreational field >100m from roadway. 10 “control” locations sampled from relatively
undisturbed areas.

Sutherland
et al. 2000 • 

### Manoa watershed, Oahu,
Hawaii

• 

### Sampled of road deposited

sediment (in curb at roadside) and roadside
soils within 2 m of road surface; 78 samples

• 

### Daily traffic volumes <3200

to 45,200 vehicles/day

• 

### Surface sampling depth: 0

to 2.5 cm • 

### Range of total Pb in roadside soil 10-4870 ppm

• 

### Median Pb conc. 56 ppm

(includes road deposited sediment, but highest levels seen in roadside soil) • 

### Enrichment ratios were calculated based on the degree of anthropogenic influence on Pb levels; Pb was the most significantly enhanced metal vs. Al, Cu, and Zn.

• 

### Enrichment ratio for roadside

Pb was 4 to 5 times higher than in background soils.

Teichman et
al. 1993 • 

### California, Alameda Co., adjacent to Interstate 880

• 

### ~200 samples were taken

in residential yards and parks/playgrounds incommunities adjacent to I880 and within 1 mile
radius of I-880

• 

### Surface sampling depth:

ranged from surface to 1.27 to 1.91 cm deep • 

### Residential soil measurements: avg. 567.7 ppm; range 195-2026 ppm

• 

### Parks and playgrounds

measurements: avg. 136.5 ppm; range 6-565 ppm • 

### “Gasoline emissions” cited as a likely urban source.

Turer and Maynard
2003 • 

### Corpus Christi, TX; 2 sampling sites; 1 transect per site

• 

### Site 1: city center (heavy

traffic); 12 samples; 2 to 12 m from road; 12 m from road; surface sampling depth: 0-32.5 cm

• 

### Site 2: near oil refinery; 10

samples; 0.5 to 4 m from road; surface depth: 0.0
and 0-2.5 cm. • 

### Site 1: 210-770 ppm

• 

### Site 2: 140-390 ppm

• 

### Highest concentrations at

both sites were observed closest to roadway (within 3.5 m) • 

### Results were compared to
Cincinnati metal contamination in near-highway soils, and organic matter was determined to be the key to Pb mobility.

## Appendix D

ICF International D- 

## 8 DRAFT – December 2006 

## Exhibit D-6. Selected Data – Pb in Surface Soil Near Roadways

and Related Urban Measurements

Study
Citation Location and Sampling
Scheme Reported Pb Concentration(s) (total Pb unless otherwise specified) Other Relevant Information

Turer et al.
2001 • 

### Cincinnati, OH; Interstate 75 through city; 58 samples

• 

### Sampling conducted

adjacent to highways on
median between lanes (within ~50m of road)

• 

### Surface sampling depth: 0-

1 cm; also sampled 1-5 cm • 

### Range for 0-1 cm samples: 166-942 ppm

• 

### Range for 1-5 cm samples:

59-1073 ppm

• 

### Some samples taken at

depth of 10-15 cm
contained total Pb between 1000-2000 ppm • 

### Performed mass balance analysis to determine fate of Pb (total emitted historically in exhaust vs. Pb currently in soil). Results suggest 60% of Pb has been lost from study area (roadsides).

• 

### Removal via wind-blown dust

was proposed as most likely remobilization mechanism; surface runoff may be lesser
removal mechanism.

Young et al.
2001 • 

### California highways; 3 locations (not identified)

• 

### Samples taken 1.5 m from

roadway

• 

### Sampling depth not

specified • 

### Pb conc. reported 38, 46, 322 ppm • 

### Pb content, potential PM 10 

### yield, and Pb emission potential via resuspension measured for all samples.



## 1
D.4 Modeled Indoor Dust Concentrations 2

3 A summary of indoor dust concentr ations for the near roadway urban case study estimated using 4 the AGG model is presented in Section 4.3.4, whic h also summarizes the number of census 5 blocks and children corresponding to each of th e three modeled indoor dust concentrations. 6 Exhibit D-7 presents the expanded data for each census block located inside (or partially 7 overlapping with) the study area. 8

9 Exhibit D-7. Near Roadway Ur ban Case Study - Modeled Indoor Dust Concentrations
Predicted House Dust Concentrations (μg/g) Census block ID Estimated Number of
Children a 

### AGG Non-Air AGG Air-Rel. Total

5001007 10 31.3 40 71

5001008 2 31.3 40 71

5001011 1 31.3 40 71

5002000 57 31.3 40 71

5002001 46 31.3 40 71

5002002 1 31.3 40 71

5003000 1 31.3 40 71

5003001 1 31.3 40 71

5003007 35 31.3 40 71

5003008 0 31.3 40 71

5003009 1 31.3 40 71

5003011 1 31.3 40 71

5003012 3 31.3 40 71

5003014 1 31.3 40 71

## Appendix D

ICF International D- 

## 9 DRAFT – December 2006 

## Exhibit D-7. Near Roadway Ur ban Case Study - Modeled Indoor Dust Concentrations
Predicted House Dust Concentrations (μg/g) Census block ID Estimated Number of
Children a 

### AGG Non-Air AGG Air-Rel. Total

5003015 1 31.3 40 71

5003021 3 31.3 40 71

5003022 2 31.3 40 71

5003023 3 31.3 40 71

5003024 0 31.3 40 71

5003025 1 31.3 40 71

4002002 54 31.3 40 71

4001005 0 31.3 40 71

4001006 1 31.3 40 71

4001007 2 31.3 40 71

5003003 1 31.3 40 71

5001008Z 1 31.3 62 94

5001009Z 8 31.3 62 94

5002000Z 23 31.3 62 94

5002001Z 23 31.3 62 94

5002002Z 1 31.3 62 94

5003001Z 0 31.3 62 94

5003007Z 14 31.3 62 94

5003008Z 0 31.3 62 94

5003009Z 1 31.3 62 94

5003010Z 0 31.3 62 94

5003011Z 0 31.3 62 94

5003012Z 3 31.3 62 94

5003013Z 2 31.3 62 94

5003014Z 2 31.3 62 94

5003015Z 2 31.3 62 94

5003021Z 0 31.3 62 94

4001007Z 1 31.3 62 94

5003003Z 0 31.3 62 94

5001009Y 2 31.3 146 178

5002000Y 4 31.3 146 178

5002002Y 0 31.3 146 178

5003008Y 0 31.3 146 178

5003009Y 0 31.3 146 178

5003012Y 1 31.3 146 178

5003013Y 0 31.3 146 178

a 

### Value represents the estimated number of children ages 0-7 residing within that census block that also reside within 

## 1 the study area. 

## 2

## Appendix D

ICF International D- 

## 10 DRAFT – December 2006 

## References 1

2 Chirenje, T., Ma, L.Q., Reeves, M., and Szulczew ski, M. (2004) Lead distribution in near3
surface soils of two Florida ci ties: Gainesville and Miami. Geoderma. 119(2):113-120. 4

Filippelli, G.M., Laidlaw, M.A.S., Latimer, J.C ., and Raftis, R. (2005) Urban lead poisoning and 5 medical geology: An unfinished story. GSA Today. 15(1):4-11. 6

Gillies, J.A., O'Connor, C.M., Mamane, Y., and Gerler, A.W. (1999) Chemical profiles for 7 characterizing dust sources in an urban area, Western Nevada, USA. In: Livingstone, I., ed. 8 Aeolian geomorphology: Papers from the 4th In ternational Conference on Aeolian Research 9 1998, Oxford, UK. Zeitschrift fuer Geomorphologie. 116(S):19-44. 10

Hafen, M.R. and Brinkmann, R. ( 1996) Analysis of lead in soils adjacent to an interstate 11 highway in Tampa, Florida. Environmental Geochemistry and Health. 18(4):171-179. 12

ICF International. (2006) Ambient PM 2.5 

## and PM 10 

## Sampling Conducted by Desert Research 13 Institute (DRI) at Seven Locations – Pb Results Used in Pb NAAQS Pilot Phase Risk Assessment. 14 Memorandum to Zach Pekar, EPA, from Davi d Burch and Arlene Rosenbaum. November. 15

Lejano, R.P. and Ericson, J.E. (2005) Trage dy of the temporal commons: Soil-bound lead and 16 the anachronicity of risk. Journal of Environmenta l Planning and Management. 48(2):301-320. 17

Li, L.Y. and Preciado, H. (2004) Air, runoff and soil monitoring of highway pollution by metals 18 along highway corridors. In Brebbia, C.A., ed. Air Polluti on XII (Air Pollution 2004) United 19 Kingdom: Wessex Institute of Technology. 20

Li, L.Y. (2006) Retention capacity and environm ental mobility of Pb in soils along highway 21
corridor. Water, Air, and Soil Pollution. 170:211-227. 22

Sheets, R.W., Kryger, J.R., Biagioni, R.N., Pr obst, S., Boyer, R., and Barke, K. (2001) 23 Relationship between soil lead a nd airborne lead concentrations at Springfield, Missouri, USA. 24 Science of Total Environment. 271:79-85. 25

Shinn, N.J., Bing-Canar, J., Caila s, M., Peneff, N., and Binns, H.J. (2000) Determination of 26 spatial continuity of soil lead leve ls in an urban residential neighborhood. Environmental 27
Research. 82(A):46-52. 28

Speiran, G.K. (1998) Selected heavy metals and other const ituents in soil and stormwater runoff 29 at the Interstate 95 Interchange near Atlee, Virginia, April 1993-May 1997. U.S. Geological 30 Survey. Water-Resources Investigations Report 98-4115, 39p. 31

Sutherland, R.A., Tolosa, C.A., Tack, F.M.G., and Verloo, M.G. (2000) Characterization of 32
selected element concentrations and enrich ment ratios in background and anthropogenically 33 impacted roadside areas. Archives of Environmental Contamination and Toxicology. 38:428-438. 34

## Appendix D

ICF International D- 

## 11 DRAFT – December 2006 

## Sutherland, R.A. and Tolosa, C.A. (2001) Variation in total and extractable elements with 1 distance from roads in an urban watershed, Honolulu, Hawaii. Water, Air, and Soil Pollution. 2 127(4):315-338. 3

Tiechman, J., Coltrin, D., Prouty, K., and Bir, W.A. (1993) A survey of lead contamination in 4 soil along Interstate 880, Alameda County, CA. American Industrial Hygiene Association 5
Journal. 54(9):557-559. 6

Turer, D., Maynard, J.B., and Sansalone, J.J. (200 1) Heavy metal contamination in soils of urban 7 highways: Comparison between runoff and so il concentrations at Cincinnati, Ohio. Water, Air, 8
and Soil Pollution. 132:293-314. 9

Turer, D.G. and Maynard, J.B. (2003) Heavy me tal contamination in highway soils. Comparison 10 of Corpus Christi, Texas and Cincinnati, Ohio shows organic matter is key to mobility. Clean 11 Technologies and Environmental Policy. 4(4):235-245. 12

U.S. Environmental Protection Agency (USEPA). (2006) AirData: Access to Air Pollution Data. 13 Available at http://www.epa.gov/air/data. 14

Young, T.M., Heeraman, G., Sirin, G., and Ashbaugh, L. (2001) Resuspension of Soil as a 15 Source of Airborne Lead. Final Project Report from Air Qua lity Group, Crocker Nuclear Lab to 16
the Research Division of the Air Resour ces Board. Contract No. 97-325. August. 17

# Appendix E

Summary Data for the Ecologi cally Vulnerable Case Study

## Appendix E

ICF International E- 

## 1 DRAFT – December 2006 

## Appendix E presents a detailed data summary and discussion of environmental data sources for 1 the Hubbard Brook Experimental Forest (HBEF). A literature search was performed to obtain 2 published studies pertaining to Pb movement throughout the environment at HBEF, with a 3 particular focus on trends in Pb concentrations in and across three media: air (or deposition from 4 air), soil, and surface water. The findi ngs for each medium are presented here. 5

## Appendix E

ICF International E- 

## 2 DRAFT – December 2006 

## E.1 Air Deposition Inputs 1

2
Pb concentration data in ambient air were not located in the literat ure search; however, two 3 studies of atmospheric Pb input (in precipitati on and bulk deposition) to HBEF were reviewed. 4 Johnson et al. (1995) used available Pb concen tration data from Watershed 6 (W6) and areas 5 proximate to W6 at HBEF together with historical data for Pb consumed in gasoline to construct 6 a regression model used to estimate Pb input s for the period 1926 to 1989. They analyzed 7 precipitation inputs using measured water fl uxes and annual volume-weighted mean Pb 8 concentrations. The authors reported a significan t decline in Pb deposition from 1975 (during a 9 period of high Pb deposition) to 1989 (during a pe riod of low Pb deposition). Specifically, the 10 annual volume-weighted mean Pb concentratio n in bulk precipitation declined from 23 μ g/L in 11

1975 to 0.85 μ g/L in 1989, while the estimated input of Pb in bulk deposition fell from 396 12

g · ha ̄ 1



## · yr ̄ 1 

## in 1976 to 12.7 g

· ha ̄ 1



## · yr ̄ 1 

## in 1989. 13

14 Wang et al. (1995) used clean t echniques to analyze monthly pr ecipitation samples collected by 15 HBEF staff in 1993. Pb levels in bulk preci pitation were approximately 0.45 to 0.80 ppb across 16 the sampling period. The authors indicated that they estimated total atmospheric input of Pb 17 from their bulk precipitation da ta; however, these estimations were not reported. Reported 18 values for Pb fluxes in bulk prec ipitation were approximately 7 g

· ha ̄ 1



## · yr ̄ 1 

## for the sampling 19 period. Furthermore, based on their findings, the authors suggest that atmospheric Pb inputs do 20 not directly affect Pb levels in streams at HBEF because deposited Pb is almost entirely retained 21 in the soil profile. 22

23
E.2 Soil 24

25 Before presenting the Pb concentration data for soils at HBEF, it is useful to discuss the soil 26 profile terms and abbreviations. A soil profile cons ists of various soil layers, or horizons, that 27 have different characteristics (e.g., color, structure, texture, rupt ure-resistance class, levels of 28 carbonates), and a general distinc tion is made between organic so ils and mineral soils based on 29 the proportion of organic carbon present (Soil Su rvey Staff 1999). Capital letters, sometimes 30 with subscripts or lower case le tters, are used to denote the various soil horizons, which are 31
identified below. 32

33

• An O horizon is predominately organic mate rial and may be the soil surface, though O 34 horizons may also be buried beneath other hor izons. Subscripts or lowercase letters 35 indicate particular feat ures of the horizon. O
a 

## , O
e 

## , O i 

## horizons are differentiated by the 36 rubbed fiber content by percent of volume (“a” is lowest, “i” is highest). 37

38

• An A horizon is a layer of mineral soil pres ent at the surface or below an O horizon. 39

40

• An E horizon is similar to the A horizon, but has a concentration of sand and silt 41 particles. 42

43

• B horizons occur below an A, E, or O horiz on and are characterized by obliteration of 44 most of the original rock structure. The B h 

## horizon is characterized by the alluvial 45

## Appendix E

ICF International E- 

## 3 DRAFT – December 2006 

## accumulation of organic matter, while the B
s 

## horizon features the alluvial accumulation 1 of sesquioxides and organic matter (Soil Survey Staff 1993). 2

3 Several studies provide insight regarding trends in Pb concentrations in soils at HBEF. Yanai et 4 al. (2004) collected forest floor 1 

## samples seven times from Watershed 6 (W6) between 1976 and 5 1997 and three times from Watershed 1 (W1) be tween 1996 and 2000 (see Exhibit E-1). While 6 W1 was subject to experiments in November 1999, the authors assumed that the treatment– 7 experimental addition of calcium silicate would not influence Pb transport dynamics in the forest 8 floor (Yanai et al. 2004). Both watersheds are similar in tr ee species composition and stand age, 9 as well as watershed area (W6=13.2 ha; W1=11.8 ha) and aspect (W6= S32 o 

## E; W1= S22 o 

## E). 10 HBEF soils are acidic, so both watersheds ar e acidified (Hubbard Brook Information Oversight 11 Committee 2001). Collected plots were 15x15-cm bl ocks and were selected randomly within 12 three elevation ranges. Samples were dried and ground using a Wiley mill. Organic mass was 13 estimated using loss on ignition. Inductively co upled plasma spectroscopy (ICP) was used to 14 analyze samples (dissolved in nitric acid [HNO 3 

## ]). The authors reported a 32 percent decline in 15
forest floor Pb concentrations at HBEF from 1976 to 2000. As shown in Exhibit E-1, Pb 16 concentrations for the data set ranged from about 38 mg/kg (collected fr om W1 in 2000) to 115 17 mg/kg (collected from W6 in 1978). Changes in Pb content and concentrations within soil 18
horizons and with elevati on were also analyzed. Results of th e horizon analysis show that Pb has 19 become more concentrated at lower depths over time. Pb content in the forest floor did not 20 necessarily increase with elevation (Pb concentr ations did increase with elevation because the 21 forest floor mass declines with elevation). 22

1 

### Yanai et al. (2004) define the “for est floor” as the O-A soil horizons.

## Appendix E

ICF International E- 

## 4 DRAFT – December 2006 

## Exhibit E-1. Pb Concentration in Fo rest Floor Samples Analyzed for 1 Hubbard Brook Experimental Forest a 

## 2

Mean Pb Concentration Stand

Age (yr) Sample
Year Horizon b 

### n mg/kg Standard
Error Stand W6 (Elevation 550-790 m)

66 1976 FF 59 77.77 4.84

67 1977 FF 58 98.42 6.06

68 1978 FF 58 86.41 4.26

72 1982 FF 68 82.10 3.53

77 1987 FF 70 69.84 3.11

82 1992 FF 80 68.09 3.15

87 1997 FF 87 59.89 2.73

68 1978 O
a 

### 58 76.16 4.10

77 1987 O
a 

### 70 66.73 3.41

82 1992 O
a 

### 80 68.12 3.54

87 1997 O
a 

### 87 74.24 3.84

68 1978 O ie 

### 58 115.01 4.01

77 1987 O ie 

### 70 75.66 3.47
82 1992 O ie 

### 80 63.79 3.15

87 1997 O ie 

### 87 40.57 2.51 Stand W1 (Elevation 490-740 m)

86 1996 FF 84 62.04 3.03

88 1998 FF 97 60.59 2.48

90 2000 FF 100 55.00 2.04

86 1996 O
a 

### 84 67.44 3.43

88 1998 O
a 

### 97 73.98 3.43
90 2000 O
a 

### 100 66.70 2.82

86 1996 O ie 

### 84 53.21 3.36

88 1998 O ie 

### 97 43.80 2.58

90 2000 O ie 

### 100 38.42 1.86

a 

### Modified from Yanai et al. (2004). 

## 3

b 

### FF= forest floor (the authors defi ne this as the O-A horizons); O

a 

### = 

## 4 organic horizon with lower rubbed fiber content (study samples include 

## 5 the A horizon [a mineral layer] with the O

a 

### horizon); O ie 

### = organic 

## 6 horizons with higher rubbed fiber content. 

## 7
8 Johnson et al. (1995) also noted a downward moveme nt of Pb in soil layers. The authors used 9 available data from Watershed 6 (W6) and areas proximate to W6 to estimate Pb fluxes for 10
HBEF. Forest floor 2 

## samples were analyzed using digestion in 6 mol/L HNO 3 

## and mineral soils 11 were assessed using dige stion in concentrated HNO 3 

## and hydrofluoric acid (HF). Pb was 12 measured using flame atomic absorption spec trophotometry. Using the flux estimates and 13 regression analysis, they estimated the net lo ss of Pb from the forest floor to be 44 g

· ha ̄1

· yr ̄1 14 from 1982 to 1987, while the accumulation rate of Pb in the mineral soil was approximately 15

2 

### Johnson et al. (1995) define the “forest floor” as the O soil horizon.

## Appendix E

ICF International E- 

## 5 DRAFT – December 2006 

## 75 g

· ha ̄1

· yr ̄1 over the same period. Additionally, they predicted further accumulation of Pb in 1 the mineral soil, which might lead to higher Pb concentrations in stream water; however, the 2 authors noted uncertainty regarding the timeframe for when Pb concentrations in stream water 3 might become elevated. 4

5 Wang and Benoit (1996) analyzed soil solutions (pH 4.0 to 4.7) to study Pb speciation and Pb 6 mobility between the forest soil surface and the lower mineral soil layer at a watershed 7 immediately west of W6. Soil solutions were collected monthl y from September to December 8 1993 and June to July 1994. Based on their findings , the authors suggested that the movement of 9
Pb from the O
a 

## horizon to the B h 

## and B
s 

## horizons occurs via organic co lloids or as free-dissolved 10
Pb 2+ 

## ions and that it is immobilized in the minera l layer as the Pb forms are adsorbed. The 11 authors further suggested that either increases or decreases in pH levels may foster higher Pb 12 mobility. Moreover, they explained that lower pH might increase Pb mobility by increasing free13
dissolved Pb 2+ 

## levels, while higher pH may increase mobility as more Pb is complexed with 14 dissolved organic carbon (DOC) and inorganic ligands. 15

16
E.3 Surface Water 17

18 Wang et al. (1995) collected stream water samp les from Bear Brook (west of HBEF reference 19 watershed W6). Samples were collected in 199 3 on a monthly basis over a 1-year period. The 20 investigators reported using ri gorous cleaning techniques to pr event contamination of water 21 samples (e.g., sample collection equipment was acid-cleaned; sample handling was conducted in 22 a pressure positive clean room). Stream samp les were collected, filtered, and acidified using 23 ultrapure HNO 3 

## . Pb was measured using graphite furnace atomic absorption spectrophotometry 24 (GFAAS). The reported stream di ssolved Pb concentrations range d from about 5 to 15 parts per 25 trillion (ppt) for the sampling period. The author s noted that the measured Pb levels in their 26 study were 10 to 100 times lower than those report ed in Driscoll et al. (1988), concluding that 27 this discrepancy is mostly likely due to measur ement error resulting from prior use of nonclean 28 techniques rather than to a real change in Pb levels. Nevertheless, both studies found that the 29 soil profile serves as a Pb sink, drastically redu cing dissolved Pb levels as it moves through the 30 soil layers to streams. Wang et al. (1995) repor ted a reduction in dissolved Pb of about 5 ppb to 31 about 5 ppt as it moves from the O
a 

## horizon to streams, concl uding that the contribution of 32
dissolved Pb from soils to stream s is insignificant (less than 0.2 g

· ha ̄1

· yr ̄1). 33

## Appendix E

ICF International E- 

## 6 DRAFT – December 2006 

## References 1

2 Driscoll, C., Fuller, R., and Simone, K. ( 1988) Longitudinal varia tions in trace metal 3 concentrations in a northern forested ecosystem. Journal of Environmental Quality. 17(1):101- 4

107. 5

Hubbard Brook Information Oversight Committee. (2001) Overview. Available at 6 http://www.hubbardbrook.org/resear ch/overview/hbguidebook.htm. 7

Johnson, C., Siccama, T., Driscoll, C., Likens, G ., and Moeller, R. (1995) Changes in lead 8 biochemistry in response to decreasing atmospheric inputs. Ecological Applications. 5(3):813- 9

822. 10

Soil Survey Division Staff. (1993) Soil Survey Manual. Soil Conservation Service. Department 11 of Agriculture Handbook 18. 12

Soil Survey Division Staff. (1999) Soil Taxonomy. Soil Conservation. U.S. Department of 13 Agriculture Handbook 436, Second Edition. 14

Wang, E., Bormann, F., and Benoit, G. (1995) Evid ence of complete retention of atmospheric 15 lead in the soils of northern hardwood forested ecosystems. Environmental Science & 16 Technology. 29(3):735-739. 17

Wang, E. and Benoit, G. (1996) Mechanisms contro lling the mobility of l ead in the spodosols of 18 a northern hardwood forest ecosystem. Environmental Science & Technology. 30(7):2211-2219. 19

Yanai, R., Ray, D., and Siccama, T. (2004) Lead reduction and redistributi on in the forest floor 20 in New Hampshire northern hardwoods. Journal of Environmental Quality. 33(1):141-148. 21

# Appendix F

Primary Pb Smelter Case Study Media Concentrations

## ICF International F- 

## 1 DRAFT – December 2006 

## As discussed in Chapter 4, the media concentrat ions for the primary Pb smelter case study were 1 estimated using a combination of modeling appro aches and monitoring data. Additional details 2 for estimating media con centrations for the primary Pb sm elter case study location are provided 3 in this appendix. Section F.1 is a presentation of Pb air concentrations, dry deposition rates, and 4 soil Pb concentrations obtained from modeling th e area around the primary Pb smelter. Section 5 F.2 presents the measured soil, surface water, and sediment data analyzed for the ecological risk 6 assessment. Section F.3 presents the analysis performed for identifying the modeling approach 7 that was ultimately selected for estimating i ndoor dust concentrations for residences around the 8 primary Pb smelting facility. 9

## ICF International F- 

## 2 DRAFT – December 2006 

## 1 F.1 Primary Pb Smelter Modeled Pb Concentrations for Use in the Human Exposure 2
and Health Risk Assessments 3

4 The first part of Appendix F, comprised of Exhi bits F-1 through F-5, provides a summary of the 5 Pb air concentrations, dry deposition rates, and soil Pb concentrations (based on dry deposition 6 rates) obtained at the block group and block le vel from modeling the area around the primary Pb 7 smelter. Exhibit F-1 shows the ratios of exposur e concentrations to ambient air concentrations 8 from the National Air Toxics Assessment (NAT A) for the Census tracts surrounding the primary 9
Pb smelter. Exhibit F-2 cont ains block-group and block-leve l summaries of modeled annual 10 average air concentrations a nd dry deposition rates for Pb; c ounts of population and children 11 under 7 years of age; modeled annual average expo sure concentrations for the general population 12 and children under 4 years of age; and the m odeled soil Pb concentration (based on dry 13 deposition rates). The modeled Pb air and exposure concentrations , dry deposition rates, and soil 14 concentrations presented in Exhibit F-2 are base d on “current conditions.” In Exhibit F-2, some 15 of the modeled air concentrations for the prim ary Pb smelter exceeded the current NAAQS for 16 Pb. Exhibit F-3 presents modeled air and expos ure concentrations, dry deposition rates, and soil 17

concentrations of Pb for the attainment s cenario (i.e., current NAAQS standards are not 18 exceeded). Exhibit F-4 is a detailed compar ison between modeled air concentrations and 19
monitored concentrations at available air monito rs, and Exhibit F-5 is a similar comparison for 20 deposition results. Further discu ssion of air and soil concentrati ons used for the human exposure 21 and health risk assessments is provided in Chapter 4, Sections 4.1.2 and 4.1.3, respectively. 22

## Appendix F

Tract FIPS HAPEM/ASPEN Ratios for Children Ages 0 to

4 Years

17133600200 0.40

17133600300 0.39

29099700104 0.40

29099700601 0.42

29099700603 0.40

29099700605 0.38

29099700700 0.41

29099700800 0.40

29099700900 0.37

29099701000 0.39 

## Exhibit F-1. Primary Pb Smelter: Ratios of Exposure Concentrations to Ambient Air Concentrations from NATA for Study Area

ICF International F-3 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual Pb airconcentration(μg/m3)ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)ModeledDryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From ISCPrimeModeling][From NATARatios][From NATARatios][From ISCPrimeModeling][IncludesBackground]Block 290997006014042 729362.90 4238252.91 9 1 2.72601 1.02295 1.14103 4.65080 128.83Re-contaminationsamples nearbyBlock 290997006014039 729250.25 4237789.26 65 5 2.68203 1.00645 1.12262 5.19613 294.00Re-contaminationsample in blockBlock 290997006014052 729155.30 4237234.24 41 1 2.32738 0.87337 0.97417 1.25085 215.67Re-contaminationsample in blockBlock 290997006014032 729366.83 4238338.85 24 1 2.06834 0.77616 0.86574 3.82524 162.39Re-contaminationsamples nearbyBlock 290997006014048 729235.27 4237980.69 1 0 1.87497 0.70360 0.78481 4.05533 191.33Re-contaminationsamples nearbyBlock 290997006014033 729422.44 4238455.54 34 1 1.82939 0.68649 0.76573 3.22791 162.39Re-contaminationsamples nearbyBlock 290997006014051 729133.50 4237807.16 44 6 1.29944 0.48762 0.54391 2.82993 183.71Re-contaminationsample in block[Centroid Coordinates inNAD83][From 2000Census]Exhibit F-2. Primary Pb Smelter: Attainment Scenario Media ConcentrationsICF International F-4 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual Pb airconcentration(μg/m3)ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)ModeledDryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From ISCPrimeModeling][From NATARatios][From NATARatios][From ISCPrimeModeling][IncludesBackground][Centroid Coordinates inNAD83][From 2000Census]Exhibit F-2. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 290997006014046 729247.56 4238193.09 50 5 1.27820 0.47965 0.53502 2.92586 128.83Re-contaminationsample in blockBlock 290997006014027 729515.21 4238636.90 102 14 0.86550 0.32479 0.36227 1.87320 223.08Re-contaminationsample in blockBlock 290997006014043 729196.78 4238271.42 29 2 0.83214 0.31227 0.34831 1.98609 149.92Re-contaminationsamples nearbyBlock 290997006014049 729111.36 4238054.93 33 1 0.75855 0.28465 0.31751 1.86272 167.13Re-contaminationsample in blockBlock 290997006014028 729428.81 4238679.89 21 2 0.67228 0.25228 0.28140 1.49391 179.17Re-contaminationsamples nearbyBlock 290997006014029 729392.81 4238714.21 6 1 0.56946 0.21369 0.23836 1.27541 135.25Re-contaminationsample in blockBlock 290997006014050 729071.48 4238169.93 4 1 0.52522 0.19709 0.21984 1.27528 171.00Re-contaminationsample in blockICF International F-5 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual Pb airconcentration(μg/m3)ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)ModeledDryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From ISCPrimeModeling][From NATARatios][From NATARatios][From ISCPrimeModeling][IncludesBackground][Centroid Coordinates inNAD83][From 2000Census]Exhibit F-2. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 290997006014045 729077.95 4238222.62 6 0 0.49061 0.18410 0.20535 1.20626 171.00Re-contaminationsamples nearbyBlock 290997006014044 729050.34 4238325.84 64 6 0.37145 0.13939 0.15548 0.89760 159.29Re-contaminationsamples nearbyBlock 290997006014031 729264.54 4238886.27 14 0 0.31235 0.11721 0.13074 0.63665 133.81Re-contaminationsample in blockBlock 290997006015016 729023.43 4238545.21 65 8 0.27218 0.10214 0.11393 0.60448 104.98Re-contaminationsample in blockBlock 290997006014025 729379.76 4239033.93 168 13 0.26914 0.10100 0.11265 0.53910 115.56Re-contaminationsamples nearbyBlock 290997006015017 728986.31 4238647.15 68 6 0.22852 0.08575 0.09565 0.47404 152.73Re-contaminationsample in blockBlock 290997006015015 729148.25 4238972.84 21 2 0.22613 0.08486 0.09465 0.43252 97.63Re-contaminationsamples nearbyICF International F-6 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual Pb airconcentration(μg/m3)ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)ModeledDryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From ISCPrimeModeling][From NATARatios][From NATARatios][From ISCPrimeModeling][IncludesBackground][Centroid Coordinates inNAD83][From 2000Census]Exhibit F-2. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 290997007002006 729059.80 4236838.74 36 1 0.20643 0.07802 0.08414 0.52405 703.05Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006014021 729457.48 4239296.65 79 2 0.16434 0.06167 0.06879 0.34521 94.80Re-contaminationsample in blockBlock 290997006015012 728858.19 4238842.45 173 5 0.14254 0.05349 0.05966 0.27291 63.38Re-contaminationsample in blockBlock 290997006015018 728797.34 4238601.41 29 2 0.14210 0.05332 0.05948 0.26696 160.43Re-contaminationsamples nearbyBlock 290997007002007 728553.89 4237806.92 9 0 0.13955 0.05274 0.05688 0.30351 975.64Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006015001 728967.45 4239229.25 104 11 0.13606 0.05106 0.05695 0.24255 41.67Re-contaminationsample in blockBlock 290997006015013 728814.37 4239124.95 7 1 0.12861 0.04826 0.05383 0.22434 52.52Re-contaminationsamples nearbyICF International F-7 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual Pb airconcentration(μg/m3)ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)ModeledDryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From ISCPrimeModeling][From NATARatios][From NATARatios][From ISCPrimeModeling][IncludesBackground][Centroid Coordinates inNAD83][From 2000Census]Exhibit F-2. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 290997006015011 728758.89 4238694.23 15 1 0.11967 0.04491 0.05009 0.22659 122.94Re-contaminationsamples nearbyBlock 290997007002009 728590.84 4238331.02 5 1 0.10478 0.03960 0.04271 0.21515 958.04Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006015019 728660.34 4238434.97 53 5 0.09604 0.03604 0.04020 0.20131 175.83Re-contaminationsample in blockBlock 290997007002011 728237.58 4237307.25 6 3 0.08899 0.03363 0.03627 0.19556 556.19Regressionequation from EPAsoil measurementsvs. distanceBlock 290997007002008 728334.88 4238091.55 4 0 0.08653 0.03270 0.03527 0.18440 738.01Regressionequation from EPAsoil measurementsvs. distanceBlock 290997007002012 728584.39 4236783.90 24 3 0.08548 0.03231 0.03484 0.18560 519.18Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006014018 729092.12 4239745.74 54 3 0.08244 0.03094 0.03451 0.19380 399.88Regressionequation from EPAsoil measurementsvs. distanceICF International F-8 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual Pb airconcentration(μg/m3)ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)ModeledDryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From ISCPrimeModeling][From NATARatios][From NATARatios][From ISCPrimeModeling][IncludesBackground][Centroid Coordinates inNAD83][From 2000Census]Exhibit F-2. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 290997006014020 728668.17 4239509.57 12 0 0.08166 0.03064 0.03418 0.20622 422.06Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006014019 728586.89 4239850.59 5 0 0.06262 0.02350 0.02621 0.19987 326.82Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006014015 728739.72 4240188.13 120 15 0.05931 0.02226 0.02483 0.22838 277.38Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001049 728121.83 4237967.39 26 4 0.05749 0.02261 0.02315 0.10466 585.00Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001048 728023.45 4237701.08 40 0 0.05472 0.02152 0.02203 0.10775 517.46Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001047 727929.43 4237420.75 29 2 0.05199 0.02044 0.02093 0.11297 446.53Regressionequation from EPAsoil measurementsvs. distanceBlock 290997007002016 728967.40 4236079.82 257 29 0.05192 0.01962 0.02116 0.17830 354.08Regressionequation from EPAsoil measurementsvs. distanceICF International F-9 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual Pb airconcentration(μg/m3)ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)ModeledDryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From ISCPrimeModeling][From NATARatios][From NATARatios][From ISCPrimeModeling][IncludesBackground][Centroid Coordinates inNAD83][From 2000Census]Exhibit F-2. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 290997006015010 728267.10 4238772.22 1 0 0.05069 0.01902 0.02122 0.10524 537.17Regressionequation from EPAsoil measurementsvs. distanceBlock 290997007002017 729459.02 4235873.61 40 1 0.04686 0.01771 0.01910 0.17274 323.26Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006014006 728248.57 4241289.02 4 1 0.04638 0.01740 0.01941 0.28438 152.60Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006014007 728721.50 4240803.57 4 1 0.04470 0.01677 0.01871 0.24092 200.38Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001046 727815.41 4237624.53 11 0 0.04431 0.01742 0.01784 0.10202 426.20Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997006013 728097.71 4240224.821350 176 0.04427 0.01661 0.01853 0.20897 231.25Regressionequation from EPAsoil measurementsvs. distanceBlock 290997007002020 729595.07 4235653.30 34 0 0.04131 0.01561 0.01684 0.18247 279.98Regressionequation from EPAsoil measurementsvs. distanceICF International F-10 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual Pb airconcentration(μg/m3)ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)ModeledDryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From ISCPrimeModeling][From NATARatios][From NATARatios][From ISCPrimeModeling][IncludesBackground][Centroid Coordinates inNAD83][From 2000Census]Exhibit F-2. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 290997006012065 728085.71 4241532.82 9 2 0.04125 0.01548 0.01727 0.25331 136.43Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006015002 727830.79 4239565.70 469 95 0.04043 0.01517 0.01692 0.18086 281.93Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001032 733177.72 4236966.44 11 0 0.04020 0.01725 0.01563 0.26413 138.18Regressionequation from EPAsoil measurementsvs. distanceBlock 290997007002029 728299.71 4235527.81 253 46 0.03953 0.01494 0.01611 0.20949 221.57Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001000 727894.73 4238256.85 20 3 0.03885 0.01528 0.01564 0.07871 461.04Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001045 727651.84 4237637.10 30 4 0.03866 0.01520 0.01557 0.10264 375.94Regressionequation from EPAsoil measurementsvs. distanceBlock 290997007002033 728508.56 4235633.67 89 23 0.03823 0.01445 0.01558 0.17519 244.94Regressionequation from EPAsoil measurementsvs. distanceICF International F-11 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual Pb airconcentration(μg/m3)ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)ModeledDryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From ISCPrimeModeling][From NATARatios][From NATARatios][From ISCPrimeModeling][IncludesBackground][Centroid Coordinates inNAD83][From 2000Census]Exhibit F-2. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 290997006012064 727831.06 4241476.15 5 0 0.03807 0.01429 0.01593 0.23609 133.84Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001044 727656.50 4237556.45 31 3 0.03770 0.01482 0.01518 0.09817 372.64Regressionequation from EPAsoil measurementsvs. distanceBlock 290997007002030 728370.71 4235325.85 64 7 0.03702 0.01399 0.01509 0.20545 204.82Regressionequation from EPAsoil measurementsvs. distanceBlock 290997007002032 728448.85 4235633.00 35 13 0.03689 0.01394 0.01504 0.16207 241.55Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997008004 727854.54 4235378.222080 197 0.03673 0.01444 0.01479 0.18222 186.28Regressionequation from EPAsoil measurementsvs. distanceBlock 290997007002014 728207.59 4236027.06 32 2 0.03663 0.01384 0.01493 0.12847 275.91Regressionequation from EPAsoil measurementsvs. distanceBlock 290997007002031 728365.30 4235630.64 9 4 0.03653 0.01381 0.01489 0.16131 236.52Regressionequation from EPAsoil measurementsvs. distanceICF International F-12 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual Pb airconcentration(μg/m3)ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)ModeledDryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From ISCPrimeModeling][From NATARatios][From NATARatios][From ISCPrimeModeling][IncludesBackground][Centroid Coordinates inNAD83][From 2000Census]Exhibit F-2. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 290997007002028 728275.96 4235183.83 42 6 0.03556 0.01344 0.01449 0.20387 188.79Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997007003 729089.12 4235020.31869 77 0.03468 0.01311 0.01413 0.16946 195.10Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001019 727067.73 4236917.90 5 2 0.03379 0.01329 0.01361 0.15079 229.66Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997006011 727442.52 4240285.11647 45 0.03330 0.01250 0.01394 0.18903 184.96Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001019 732630.91 4239062.17 9 1 0.03211 0.01378 0.01249 0.19496 169.46Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012057 727278.47 4241402.03 18 3 0.03204 0.01202 0.01341 0.20020 124.15Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001030 731517.59 4239632.06 3 0 0.03139 0.01347 0.01221 0.13580 239.29Regressionequation from EPAsoil measurementsvs. distanceICF International F-13 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual Pb airconcentration(μg/m3)ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)ModeledDryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From ISCPrimeModeling][From NATARatios][From NATARatios][From ISCPrimeModeling][IncludesBackground][Centroid Coordinates inNAD83][From 2000Census]Exhibit F-2. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 290997007002021 729929.60 4235175.08 113 12 0.03096 0.01170 0.01262 0.15121 210.72Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001059 737552.35 4243371.85 18 3 0.03072 0.01311 0.01216 0.06283 35.88Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001026 727069.87 4235706.28 4 0 0.03039 0.01195 0.01224 0.17894 166.27Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012052 728065.97 4242288.57 469 79 0.03036 0.01139 0.01271 0.18737 106.57Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001034 731393.01 4240508.01 2 0 0.03032 0.01294 0.01200 0.16788 181.05Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012053 727610.40 4242444.35 65 9 0.02957 0.01110 0.01238 0.16602 96.96Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001058 737866.05 4243527.52 50 5 0.02946 0.01257 0.01166 0.05966 34.10Regressionequation from EPAsoil measurementsvs. distanceICF International F-14 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual Pb airconcentration(μg/m3)ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)ModeledDryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From ISCPrimeModeling][From NATARatios][From NATARatios][From ISCPrimeModeling][IncludesBackground][Centroid Coordinates inNAD83][From 2000Census]Exhibit F-2. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 290997006012051 727496.28 4242739.01 40 5 0.02878 0.01080 0.01205 0.14616 88.54Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001023 726770.39 4235878.63 14 2 0.02816 0.01107 0.01134 0.16873 158.16Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001044 736092.50 4243307.84 310 34 0.02789 0.01190 0.01104 0.06465 43.52Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012062 726979.17 4241716.73 9 2 0.02768 0.01039 0.01159 0.16055 107.56Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001018 732645.21 4240142.05 12 0 0.02743 0.01177 0.01067 0.18413 137.91Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001049 737526.20 4243990.12 25 0 0.02693 0.01149 0.01066 0.05363 34.15Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001068 737267.02 4244091.56 7 0 0.02678 0.01143 0.01060 0.05378 34.87Regressionequation from EPAsoil measurementsvs. distanceICF International F-15 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual Pb airconcentration(μg/m3)ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)ModeledDryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From ISCPrimeModeling][From NATARatios][From NATARatios][From ISCPrimeModeling][IncludesBackground][Centroid Coordinates inNAD83][From 2000Census]Exhibit F-2. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 171336003001005 736121.22 4241808.07 1 0 0.02669 0.01146 0.01038 0.07529 50.50Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012059 726996.34 4242096.88 3 0 0.02667 0.01001 0.01116 0.14888 97.74Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006015008 727594.62 4238850.21 2 0 0.02666 0.01000 0.01116 0.07534 322.17Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001030 726519.70 4235844.35 83 14 0.02661 0.01046 0.01071 0.15980 144.58Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997006031 726323.72 4246358.986203 737 0.02659 0.01018 0.01054 0.07588 40.03Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012033 727983.35 4244904.53 2 0 0.02658 0.00997 0.01113 0.09601 56.14Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012025 729132.19 4243047.79 7 0 0.02619 0.00983 0.01096 0.15366 90.75Regressionequation from EPAsoil measurementsvs. distanceICF International F-16 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual Pb airconcentration(μg/m3)ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)ModeledDryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From ISCPrimeModeling][From NATARatios][From NATARatios][From ISCPrimeModeling][IncludesBackground][Centroid Coordinates inNAD83][From 2000Census]Exhibit F-2. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 290997006012049 728045.19 4243137.18 17 3 0.02608 0.00979 0.01092 0.13977 83.98Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001056 737535.07 4243715.70 19 3 0.02578 0.01100 0.01021 0.05408 34.93Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001025 727049.76 4235855.16 11 0 0.02546 0.01001 0.01025 0.14515 172.51Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001003 737807.96 4240201.39 84 11 0.02535 0.01088 0.00986 0.06548 42.65Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012050 727262.39 4242454.74 9 0 0.02518 0.00945 0.01054 0.13719 92.63Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001050 738021.90 4244044.10 57 9 0.02486 0.01061 0.00984 0.05027 32.13Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001036 726677.76 4234806.73 35 10 0.02462 0.00968 0.00991 0.14659 117.18Regressionequation from EPAsoil measurementsvs. distanceICF International F-17 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual Pb airconcentration(μg/m3)ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)ModeledDryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From ISCPrimeModeling][From NATARatios][From NATARatios][From ISCPrimeModeling][IncludesBackground][Centroid Coordinates inNAD83][From 2000Census]Exhibit F-2. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 290997008001035 726978.18 4234630.36 96 8 0.02450 0.00963 0.00986 0.14867 119.40Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001031 726645.79 4235664.11 49 8 0.02444 0.00961 0.00984 0.14362 144.11Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012027 728340.53 4244960.07 1 0 0.02425 0.00910 0.01015 0.09229 56.30Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001034 726458.86 4234830.90 50 3 0.02411 0.00948 0.00971 0.14125 112.15Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001032 726629.13 4235605.07 19 3 0.02380 0.00936 0.00958 0.13884 141.33Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001066 736981.22 4242795.62 16 1 0.02362 0.01008 0.00935 0.06012 40.59Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997008005 728415.30 4234222.77907 104 0.02348 0.00923 0.00945 0.13723 132.27Regressionequation from EPAsoil measurementsvs. distanceICF International F-18 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual Pb airconcentration(μg/m3)ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)ModeledDryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From ISCPrimeModeling][From NATARatios][From NATARatios][From ISCPrimeModeling][IncludesBackground][Centroid Coordinates inNAD83][From 2000Census]Exhibit F-2. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 290997007002025 729869.34 4234829.04 26 1 0.02279 0.00861 0.00929 0.11679 179.33Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001029 726473.38 4235421.99 8 3 0.02273 0.00894 0.00915 0.13169 129.35Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001037 726665.82 4234664.02 44 8 0.02253 0.00886 0.00907 0.13418 112.76Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012040 727235.14 4243621.25 27 0 0.02239 0.00840 0.00937 0.10087 70.00Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001002 738906.28 4242577.65 23 0 0.02218 0.00952 0.00863 0.04698 32.09Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001057 737540.98 4243514.92 26 3 0.02217 0.00946 0.00878 0.05102 35.50Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012048 727358.98 4243376.33 1 0 0.02214 0.00831 0.00927 0.10889 74.80Regressionequation from EPAsoil measurementsvs. distanceICF International F-19 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual Pb airconcentration(μg/m3)ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)ModeledDryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From ISCPrimeModeling][From NATARatios][From NATARatios][From ISCPrimeModeling][IncludesBackground][Centroid Coordinates inNAD83][From 2000Census]Exhibit F-2. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 290997008001018 726148.91 4237144.61 27 0 0.02211 0.00869 0.00890 0.12769 157.35Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012043 728139.39 4243773.97 2 0 0.02207 0.00828 0.00924 0.11126 72.21Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997007004 729132.59 4234341.77639 49 0.02196 0.00830 0.00895 0.12756 145.88Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001017 725800.27 4236056.48 207 22 0.02157 0.00848 0.00868 0.12723 120.13Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997008002 726547.58 4234282.491087 92 0.02076 0.00816 0.00836 0.12246 100.33Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001051 737827.95 4244172.70 11 2 0.02074 0.00885 0.00821 0.04471 32.49Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997008007 727676.79 4233773.461383 141 0.02050 0.00806 0.00825 0.12329 105.12Regressionequation from EPAsoil measurementsvs. distanceICF International F-20 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual Pb airconcentration(μg/m3)ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)ModeledDryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From ISCPrimeModeling][From NATARatios][From NATARatios][From ISCPrimeModeling][IncludesBackground][Centroid Coordinates inNAD83][From 2000Census]Exhibit F-2. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 290997006012001 728421.23 4246464.88 88 7 0.02029 0.00761 0.00849 0.06602 42.84Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012037 727572.91 4244649.60 13 0 0.02021 0.00758 0.00846 0.08063 57.84Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997008006 728583.13 4233684.14658 58 0.01989 0.00782 0.00801 0.11747 111.93Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012021 727622.36 4245152.84 110 6 0.01973 0.00740 0.00826 0.07348 52.61Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012026 728835.98 4245020.55 2 0 0.01967 0.00738 0.00823 0.08182 56.35Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012044 727441.70 4243857.29 10 3 0.01920 0.00720 0.00804 0.09113 67.62Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001033 726064.73 4235169.25 53 0 0.01914 0.00753 0.00771 0.10874 109.89Regressionequation from EPAsoil measurementsvs. distanceICF International F-21 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual Pb airconcentration(μg/m3)ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)ModeledDryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From ISCPrimeModeling][From NATARatios][From NATARatios][From ISCPrimeModeling][IncludesBackground][Centroid Coordinates inNAD83][From 2000Census]Exhibit F-2. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 290997006012020 727399.40 4245499.97 7 0 0.01903 0.00714 0.00797 0.06701 48.83Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997007001 729614.26 4233554.91688 70 0.01877 0.00709 0.00765 0.11621 110.84Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012030 728293.96 4244469.02 6 3 0.01865 0.00700 0.00781 0.08781 62.23Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012041 727449.38 4244460.32 12 2 0.01812 0.00680 0.00758 0.07782 59.62Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012002 727972.60 4246917.69 18 0 0.01788 0.00671 0.00748 0.05615 39.38Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012031 727938.98 4244559.96 11 1 0.01786 0.00670 0.00748 0.08092 60.07Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001041 738509.37 4245076.42 41 8 0.01766 0.00754 0.00699 0.03677 28.13Regressionequation from EPAsoil measurementsvs. distanceICF International F-22 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual Pb airconcentration(μg/m3)ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)ModeledDryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From ISCPrimeModeling][From NATARatios][From NATARatios][From ISCPrimeModeling][IncludesBackground][Centroid Coordinates inNAD83][From 2000Census]Exhibit F-2. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlkGrp290997009002 728311.66 4233068.92783 86 0.01720 0.00713 0.00638 0.09843 91.47Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997006051 723624.91 4242046.21715 62 0.01682 0.00664 0.00637 0.05761 55.39Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012019 727579.22 4245892.79 13 3 0.01674 0.00628 0.00701 0.05947 45.97Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997009001 727560.50 4233013.021338 120 0.01670 0.00693 0.00619 0.09472 84.59Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001107 735680.14 4242223.36 3 0 0.01669 0.00712 0.00661 0.05544 51.97Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001042 725103.83 4236817.60 18 3 0.01637 0.00644 0.00659 0.09378 106.01Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001003 725140.09 4237088.20 13 1 0.01631 0.00641 0.00657 0.09750 109.34Regressionequation from EPAsoil measurementsvs. distanceICF International F-23 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual Pb airconcentration(μg/m3)ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)ModeledDryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From ISCPrimeModeling][From NATARatios][From NATARatios][From ISCPrimeModeling][IncludesBackground][Centroid Coordinates inNAD83][From 2000Census]Exhibit F-2. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 290997008001014 725116.05 4236750.29 2 0 0.01630 0.00641 0.00656 0.09279 105.82Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012013 727516.48 4246481.73 52 5 0.01613 0.00605 0.00675 0.05335 41.58Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001033 731924.18 4243353.68 2 0 0.01607 0.00686 0.00636 0.09918 73.41Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001060 737221.98 4243458.08 12 2 0.01605 0.00685 0.00635 0.04320 37.10Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997006054 725924.10 4239158.81653 63 0.01595 0.00629 0.00604 0.09315 139.00Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001042 733093.44 4235053.49 5 0 0.01574 0.00676 0.00612 0.10167 104.16Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001012 724888.21 4236496.57 3 0 0.01557 0.00612 0.00627 0.08680 96.80Regressionequation from EPAsoil measurementsvs. distanceICF International F-24 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual Pb airconcentration(μg/m3)ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)ModeledDryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From ISCPrimeModeling][From NATARatios][From NATARatios][From ISCPrimeModeling][IncludesBackground][Centroid Coordinates inNAD83][From 2000Census]Exhibit F-2. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 290997006012011 727847.92 4246714.24 7 0 0.01554 0.00583 0.00650 0.05149 40.52Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997008003 726064.69 4233841.601014 72 0.01547 0.00608 0.00623 0.08743 83.43Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001017 733925.93 4240803.07 13 2 0.01545 0.00663 0.00601 0.09418 86.98Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012018 727609.44 4246315.72 37 1 0.01516 0.00569 0.00635 0.05225 42.87Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012022 728922.03 4245492.53 31 3 0.01510 0.00567 0.00632 0.06484 51.44Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001005 724770.39 4237068.84 4 0 0.01508 0.00593 0.00607 0.08827 97.59Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012014 727539.10 4246920.60 38 4 0.01494 0.00561 0.00625 0.04799 38.84Regressionequation from EPAsoil measurementsvs. distanceICF International F-25 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual Pb airconcentration(μg/m3)ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)ModeledDryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From ISCPrimeModeling][From NATARatios][From NATARatios][From ISCPrimeModeling][IncludesBackground][Centroid Coordinates inNAD83][From 2000Census]Exhibit F-2. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 290997006012012 727772.31 4246744.42 2 0 0.01475 0.00554 0.00617 0.04898 40.23Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012016 727715.57 4246528.74 36 8 0.01473 0.00553 0.00617 0.05003 41.56Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012006 727655.81 4247068.29 20 2 0.01472 0.00552 0.00616 0.04711 38.12Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012005 727758.77 4247026.77 14 2 0.01472 0.00552 0.00616 0.04757 38.48Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012015 727633.80 4246861.68 21 0 0.01466 0.00550 0.00614 0.04779 39.32Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997001044 729902.81 4248977.711758 164 0.01431 0.00593 0.00579 0.04494 29.80Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012004 727988.01 4247103.93 7 1 0.01417 0.00532 0.00593 0.04625 38.27Regressionequation from EPAsoil measurementsvs. distanceICF International F-26 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual Pb airconcentration(μg/m3)ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)ModeledDryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From ISCPrimeModeling][From NATARatios][From NATARatios][From ISCPrimeModeling][IncludesBackground][Centroid Coordinates inNAD83][From 2000Census]Exhibit F-2. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 171336002001032 732434.00 4243775.28 6 0 0.01394 0.00595 0.00552 0.08094 63.83Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012007 727629.68 4247514.88 1 0 0.01392 0.00522 0.00583 0.04349 35.64Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001041 734065.76 4234674.59 2 0 0.01383 0.00594 0.00538 0.08788 78.49Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012010 728232.00 4247333.98 5 0 0.01365 0.00512 0.00571 0.04443 37.16Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001006 724360.62 4237030.20 10 5 0.01360 0.00535 0.00548 0.07711 86.79Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012003 728123.39 4247209.74 130 12 0.01353 0.00508 0.00566 0.04440 37.78Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001010 724327.70 4236523.43 2 0 0.01301 0.00512 0.00524 0.07053 83.40Regressionequation from EPAsoil measurementsvs. distanceICF International F-27 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual Pb airconcentration(μg/m3)ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)ModeledDryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From ISCPrimeModeling][From NATARatios][From NATARatios][From ISCPrimeModeling][IncludesBackground][Centroid Coordinates inNAD83][From 2000Census]Exhibit F-2. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlkGrp290997009003 725875.12 4231328.492380 254 0.01279 0.00530 0.00474 0.04729 50.99Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997007005 728878.10 4232113.241086 74 0.01191 0.00450 0.00485 0.06374 73.21Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001108 735966.95 4242212.54 4 0 0.01176 0.00502 0.00466 0.04172 49.74Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997010001 721139.29 4233404.331558 145 0.01156 0.00558 0.00449 0.03319 36.59Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001009 732976.35 4252069.34 4 0 0.01156 0.00493 0.00458 0.03170 20.01Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001026 739822.35 4249773.88 2 0 0.01111 0.00474 0.00440 0.02312 17.92Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001030 732927.82 4245135.58 20 3 0.01100 0.00469 0.00435 0.05512 47.82Regressionequation from EPAsoil measurementsvs. distanceICF International F-28 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual Pb airconcentration(μg/m3)ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)ModeledDryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From ISCPrimeModeling][From NATARatios][From NATARatios][From ISCPrimeModeling][IncludesBackground][Centroid Coordinates inNAD83][From 2000Census]Exhibit F-2. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 171336003001052 738918.72 4232880.44 11 0 0.01091 0.00468 0.00424 0.03608 31.06Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997006053 724430.01 4237803.711585 139 0.01088 0.00429 0.00412 0.05302 90.57Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001015 734134.66 4241977.47 3 1 0.01058 0.00454 0.00411 0.05303 69.65Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001037 732299.98 4246468.60 9 0 0.01052 0.00449 0.00416 0.04504 40.25Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001038 736866.71 4233738.13 12 0 0.01046 0.00449 0.00407 0.04446 43.36Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001012 736254.93 4251368.09 3 0 0.01028 0.00439 0.00407 0.02823 19.09Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001038 732505.82 4248322.47 7 0 0.00998 0.00426 0.00395 0.03564 30.76Regressionequation from EPAsoil measurementsvs. distanceICF International F-29 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual Pb airconcentration(μg/m3)ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)ModeledDryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From ISCPrimeModeling][From NATARatios][From NATARatios][From ISCPrimeModeling][IncludesBackground][Centroid Coordinates inNAD83][From 2000Census]Exhibit F-2. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 171336002001011 735260.35 4251890.35 3 0 0.00994 0.00424 0.00393 0.02735 18.98Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001004 737525.30 4252254.74 8 0 0.00990 0.00422 0.00392 0.02507 16.82Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001043 733446.25 4233838.78 2 0 0.00988 0.00424 0.00384 0.06199 76.80Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001000 740536.58 4241786.83 73 11 0.00975 0.00418 0.00379 0.02808 27.43Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001003 738581.35 4251459.89 6 1 0.00957 0.00408 0.00379 0.02280 17.00Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001007 736217.44 4253648.24 2 0 0.00953 0.00407 0.00377 0.02433 15.87Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001029 734596.43 4245667.61 19 4 0.00943 0.00402 0.00373 0.03802 38.50Regressionequation from EPAsoil measurementsvs. distanceICF International F-30 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual Pb airconcentration(μg/m3)ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)ModeledDryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From ISCPrimeModeling][From NATARatios][From NATARatios][From ISCPrimeModeling][IncludesBackground][Centroid Coordinates inNAD83][From 2000Census]Exhibit F-2. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 171336003001063 740323.26 4238788.24 8 1 0.00925 0.00397 0.00360 0.02775 30.48Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001054 739740.77 4231971.62 7 0 0.00923 0.00396 0.00359 0.02878 26.76Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001009 735197.90 4241730.65 9 1 0.00923 0.00396 0.00359 0.04160 59.57Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001012 734729.52 4241772.57 8 0 0.00920 0.00395 0.00358 0.04312 64.44Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001006 735393.76 4241891.86 3 0 0.00912 0.00391 0.00355 0.03883 56.52Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001055 740588.40 4231227.23 4 2 0.00905 0.00388 0.00352 0.02657 23.53Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001015 733988.46 4249102.54 11 4 0.00901 0.00385 0.00357 0.03057 26.34Regressionequation from EPAsoil measurementsvs. distanceICF International F-31 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual Pb airconcentration(μg/m3)ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)ModeledDryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From ISCPrimeModeling][From NATARatios][From NATARatios][From ISCPrimeModeling][IncludesBackground][Centroid Coordinates inNAD83][From 2000Census]Exhibit F-2. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 171336003001066 740381.33 4239647.35 9 1 0.00900 0.00386 0.00350 0.02660 29.86Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001026 736235.65 4239744.29 5 0 0.00895 0.00384 0.00348 0.03773 57.86Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001010 735066.36 4241875.26 2 0 0.00887 0.00381 0.00345 0.03958 59.91Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001014 735142.94 4249403.74 6 0 0.00887 0.00379 0.00351 0.02967 24.15Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001008 735260.73 4241950.60 2 0 0.00875 0.00376 0.00340 0.03781 57.43Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001018 736016.75 4248018.53 7 0 0.00874 0.00373 0.00346 0.02871 26.44Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001091 734948.92 4241972.83 2 0 0.00871 0.00372 0.00345 0.03867 60.41Regressionequation from EPAsoil measurementsvs. distanceICF International F-32 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual Pb airconcentration(μg/m3)ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)ModeledDryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From ISCPrimeModeling][From NATARatios][From NATARatios][From ISCPrimeModeling][IncludesBackground][Centroid Coordinates inNAD83][From 2000Census]Exhibit F-2. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 171336003001065 740900.87 4239016.49 10 4 0.00867 0.00372 0.00337 0.02552 28.22Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001106 735067.40 4241976.28 2 0 0.00866 0.00370 0.00343 0.03804 59.17Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001103 735405.02 4242188.07 2 0 0.00864 0.00369 0.00342 0.03540 54.54Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001007 735322.76 4242061.47 7 0 0.00859 0.00369 0.00334 0.03630 56.10Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001105 735186.97 4242024.19 6 0 0.00858 0.00366 0.00340 0.03702 57.64Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001073 735024.05 4243274.65 2 0 0.00856 0.00365 0.00339 0.03613 50.44Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997006052 722072.13 4239260.361569 187 0.00853 0.00337 0.00323 0.02920 51.26Regressionequation from EPAsoil measurementsvs. distanceICF International F-33 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual Pb airconcentration(μg/m3)ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)ModeledDryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From ISCPrimeModeling][From NATARatios][From NATARatios][From ISCPrimeModeling][IncludesBackground][Centroid Coordinates inNAD83][From 2000Census]Exhibit F-2. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 171336002001104 735242.93 4242124.78 8 1 0.00847 0.00361 0.00335 0.03576 56.42Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001101 735065.65 4242173.14 6 1 0.00845 0.00361 0.00334 0.03618 57.75Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001093 735279.67 4242393.45 6 0 0.00829 0.00354 0.00328 0.03398 54.30Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001019 736622.49 4249083.49 2 0 0.00814 0.00347 0.00322 0.02534 22.97Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001051 738200.79 4232475.57 1 0 0.00813 0.00349 0.00316 0.02756 32.88Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001044 734283.87 4233329.79 7 0 0.00803 0.00345 0.00312 0.04476 61.50Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001076 734539.48 4243602.90 4 0 0.00800 0.00341 0.00317 0.03742 51.41Regressionequation from EPAsoil measurementsvs. distanceICF International F-34 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual Pb airconcentration(μg/m3)ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)ModeledDryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From ISCPrimeModeling][From NATARatios][From NATARatios][From ISCPrimeModeling][IncludesBackground][Centroid Coordinates inNAD83][From 2000Census]Exhibit F-2. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 171336002001022 737420.01 4248814.08 25 1 0.00754 0.00322 0.00298 0.02241 22.41Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001070 735389.94 4244507.20 7 0 0.00742 0.00317 0.00294 0.02931 41.27Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001028 737198.82 4246114.30 19 0 0.00735 0.00314 0.00291 0.02379 29.10Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001023 738625.88 4249231.42 54 4 0.00642 0.00274 0.00254 0.01839 20.07Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001058 739334.27 4229409.76 6 0 0.00556 0.00239 0.00216 0.01625 23.36Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001045 735284.84 4231890.54 2 0 0.00541 0.00232 0.00210 0.02255 44.10Regressionequation from EPAsoil measurementsvs. distanceICF International F-35 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0 to7 Yearsin 2000CurrentNAAQS:ModeledAverageAnnual Pb AirConcentration(μg/m3)CurrentNAAQS:ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)CurrentNAAQS:Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)Modeled DryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From NATARatios][From NATARatios][From ISCPrimeModeling][Includesbackground]Block 290997006014042 729362.90 4238252.91 9 1 1.500000 0.56289 0.62785 4.65080 128.83Re-contaminationsamples nearbyBlock 290997006014039 729250.25 4237789.26 65 5 1.500000 0.56289 0.62785 5.19613 294.00Re-contaminationsample in blockBlock 290997006014052 729155.30 4237234.24 41 1 1.195566 0.44864 0.50043 1.25085 215.67Re-contaminationsample in blockBlock 290997006014032 729366.83 4238338.85 24 1 1.500000 0.56289 0.62785 3.82524 162.39Re-contaminationsamples nearbyBlock 290997006014048 729235.27 4237980.69 1 0 1.483735 0.55678 0.62105 4.05533 191.33Re-contaminationsamples nearbyBlock 290997006014033 729422.44 4238455.54 34 1 1.493954 0.56062 0.62532 3.22791 162.39Re-contaminationsamples nearbyBlock 290997006014051 729133.50 4237807.16 44 6 1.209662 0.45393 0.50633 2.82993 183.71Re-contaminationsample in blockBlock 290997006014046 729247.56 4238193.09 50 5 1.278124 0.47963 0.53498 2.92586 128.83Re-contaminationsample in blockBlkGrp290997006013 728097.71 4240224.821350 176 0.04427 0.01661 0.01853 0.20897 231.25Regressionequation from EPAsoil measurementsvs. distance[Centroid coordinates inNAD83][From 2000census]Exhibit F-3. Primary Pb Smelter: Attainment Scenario Media ConcentrationsICF International F-36 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0 to7 Yearsin 2000CurrentNAAQS:ModeledAverageAnnual Pb AirConcentration(μg/m3)CurrentNAAQS:ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)CurrentNAAQS:Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)Modeled DryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From NATARatios][From NATARatios][From ISCPrimeModeling][Includesbackground][Centroid coordinates inNAD83][From 2000census]Exhibit F-3. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlkGrp290997008004 727854.54 4235378.222080 197 0.03673 0.01444 0.01479 0.18222 186.28Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997007003 729089.12 4235020.31869 77 0.03468 0.01311 0.01413 0.16946 195.10Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997006011 727442.52 4240285.11647 45 0.03330 0.01250 0.01394 0.18903 184.96Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997006031 726323.72 4246358.986203 737 0.02659 0.01018 0.01054 0.07588 40.03Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997008005 728415.30 4234222.77907 104 0.02348 0.00923 0.00945 0.13723 132.27Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997007004 729132.59 4234341.77639 49 0.02196 0.00830 0.00895 0.12756 145.88Regressionequation from EPAsoil measurementsvs. distanceICF International F-37 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0 to7 Yearsin 2000CurrentNAAQS:ModeledAverageAnnual Pb AirConcentration(μg/m3)CurrentNAAQS:ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)CurrentNAAQS:Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)Modeled DryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From NATARatios][From NATARatios][From ISCPrimeModeling][Includesbackground][Centroid coordinates inNAD83][From 2000census]Exhibit F-3. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlkGrp290997008002 726547.58 4234282.491087 92 0.02076 0.00816 0.00836 0.12246 100.33Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997008007 727676.79 4233773.461383 141 0.02050 0.00806 0.00825 0.12329 105.12Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997008006 728583.13 4233684.14658 58 0.01989 0.00782 0.00801 0.11747 111.93Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997007001 729614.26 4233554.91688 70 0.01877 0.00709 0.00765 0.11621 110.84Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997009002 728311.66 4233068.92783 86 0.01720 0.00713 0.00638 0.09843 91.47Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997006051 723624.91 4242046.21715 62 0.01682 0.00664 0.00637 0.05761 55.39Regressionequation from EPAsoil measurementsvs. distanceICF International F-38 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0 to7 Yearsin 2000CurrentNAAQS:ModeledAverageAnnual Pb AirConcentration(μg/m3)CurrentNAAQS:ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)CurrentNAAQS:Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)Modeled DryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From NATARatios][From NATARatios][From ISCPrimeModeling][Includesbackground][Centroid coordinates inNAD83][From 2000census]Exhibit F-3. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlkGrp290997009001 727560.50 4233013.021338 120 0.01670 0.00693 0.00619 0.09472 84.59Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997006054 725924.10 4239158.81653 63 0.01595 0.00629 0.00604 0.09315 139.00Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997008003 726064.69 4233841.601014 72 0.01547 0.00608 0.00623 0.08743 83.43Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997001044 729902.81 4248977.711758 164 0.01431 0.00593 0.00579 0.04494 29.80Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997009003 725875.12 4231328.492380 254 0.01279 0.00530 0.00474 0.04729 50.99Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997007005 728878.10 4232113.241086 74 0.01191 0.00450 0.00485 0.06374 73.21Regressionequation from EPAsoil measurementsvs. distanceICF International F-39 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0 to7 Yearsin 2000CurrentNAAQS:ModeledAverageAnnual Pb AirConcentration(μg/m3)CurrentNAAQS:ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)CurrentNAAQS:Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)Modeled DryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From NATARatios][From NATARatios][From ISCPrimeModeling][Includesbackground][Centroid coordinates inNAD83][From 2000census]Exhibit F-3. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlkGrp290997010001 721139.29 4233404.331558 145 0.01156 0.00558 0.00449 0.03319 36.59Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997006053 724430.01 4237803.711585 139 0.01088 0.00429 0.00412 0.05302 90.57Regressionequation from EPAsoil measurementsvs. distanceBlkGrp290997006052 722072.13 4239260.361569 187 0.00853 0.00337 0.00323 0.02920 51.26Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006014027 729515.21 4238636.90 102 14 0.86550 0.32479 0.36227 1.87320 223.08Re-contaminationsample in blockBlock 290997006014043 729196.78 4238271.42 29 2 0.83214 0.31227 0.34831 1.98609 149.92Re-contaminationsamples nearbyBlock 290997006014049 729111.36 4238054.93 33 1 0.75855 0.28465 0.31751 1.86272 167.13Re-contaminationsample in blockBlock 290997006014028 729428.81 4238679.89 21 2 0.67228 0.25228 0.28140 1.49391 179.17Re-contaminationsamples nearbyBlock 290997006014029 729392.81 4238714.21 6 1 0.56946 0.21369 0.23836 1.27541 135.25Re-contaminationsample in blockBlock 290997006014050 729071.48 4238169.93 4 1 0.52522 0.19709 0.21984 1.27528 171.00Re-contaminationsample in blockICF International F-40 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0 to7 Yearsin 2000CurrentNAAQS:ModeledAverageAnnual Pb AirConcentration(μg/m3)CurrentNAAQS:ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)CurrentNAAQS:Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)Modeled DryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From NATARatios][From NATARatios][From ISCPrimeModeling][Includesbackground][Centroid coordinates inNAD83][From 2000census]Exhibit F-3. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 290997006014045 729077.95 4238222.62 6 0 0.49061 0.18410 0.20535 1.20626 171.00Re-contaminationsamples nearbyBlock 290997006014044 729050.34 4238325.84 64 6 0.37145 0.13939 0.15548 0.89760 159.29Re-contaminationsamples nearbyBlock 290997006014031 729264.54 4238886.27 14 0 0.31235 0.11721 0.13074 0.63665 133.81Re-contaminationsample in blockBlock 290997006015016 729023.43 4238545.21 65 8 0.27218 0.10214 0.11393 0.60448 104.98Re-contaminationsample in blockBlock 290997006014025 729379.76 4239033.93 168 13 0.26914 0.10100 0.11265 0.53910 115.56Re-contaminationsamples nearbyBlock 290997006015017 728986.31 4238647.15 68 6 0.22852 0.08575 0.09565 0.47404 152.73Re-contaminationsample in blockBlock 290997006015015 729148.25 4238972.84 21 2 0.22613 0.08486 0.09465 0.43252 97.63Re-contaminationsamples nearbyBlock 290997007002006 729059.80 4236838.74 36 1 0.20643 0.07802 0.08414 0.52405 703.05Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006014021 729457.48 4239296.65 79 2 0.16434 0.06167 0.06879 0.34521 94.80Re-contaminationsample in blockICF International F-41 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0 to7 Yearsin 2000CurrentNAAQS:ModeledAverageAnnual Pb AirConcentration(μg/m3)CurrentNAAQS:ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)CurrentNAAQS:Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)Modeled DryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From NATARatios][From NATARatios][From ISCPrimeModeling][Includesbackground][Centroid coordinates inNAD83][From 2000census]Exhibit F-3. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 290997006015012 728858.19 4238842.45 173 5 0.14254 0.05349 0.05966 0.27291 63.38Re-contaminationsample in blockBlock 290997006015018 728797.34 4238601.41 29 2 0.14210 0.05332 0.05948 0.26696 160.43Re-contaminationsamples nearbyBlock 290997007002007 728553.89 4237806.92 9 0 0.13955 0.05274 0.05688 0.30351 975.64Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006015001 728967.45 4239229.25 104 11 0.13606 0.05106 0.05695 0.24255 41.67Re-contaminationsample in blockBlock 290997006015013 728814.37 4239124.95 7 1 0.12861 0.04826 0.05383 0.22434 52.52Re-contaminationsamples nearbyBlock 290997006015011 728758.89 4238694.23 15 1 0.11967 0.04491 0.05009 0.22659 122.94Re-contaminationsamples nearbyBlock 290997007002009 728590.84 4238331.02 5 1 0.10478 0.03960 0.04271 0.21515 958.04Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006015019 728660.34 4238434.97 53 5 0.09604 0.03604 0.04020 0.20131 175.83Re-contaminationsample in blockICF International F-42 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0 to7 Yearsin 2000CurrentNAAQS:ModeledAverageAnnual Pb AirConcentration(μg/m3)CurrentNAAQS:ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)CurrentNAAQS:Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)Modeled DryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From NATARatios][From NATARatios][From ISCPrimeModeling][Includesbackground][Centroid coordinates inNAD83][From 2000census]Exhibit F-3. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 290997007002011 728237.58 4237307.25 6 3 0.08899 0.03363 0.03627 0.19556 556.19Regressionequation from EPAsoil measurementsvs. distanceBlock 290997007002008 728334.88 4238091.55 4 0 0.08653 0.03270 0.03527 0.18440 738.01Regressionequation from EPAsoil measurementsvs. distanceBlock 290997007002012 728584.39 4236783.90 24 3 0.08548 0.03231 0.03484 0.18560 519.18Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006014018 729092.12 4239745.74 54 3 0.08244 0.03094 0.03451 0.19380 399.88Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006014020 728668.17 4239509.57 12 0 0.08166 0.03064 0.03418 0.20622 422.06Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006014019 728586.89 4239850.59 5 0 0.06262 0.02350 0.02621 0.19987 326.82Regressionequation from EPAsoil measurementsvs. distanceICF International F-43 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0 to7 Yearsin 2000CurrentNAAQS:ModeledAverageAnnual Pb AirConcentration(μg/m3)CurrentNAAQS:ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)CurrentNAAQS:Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)Modeled DryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From NATARatios][From NATARatios][From ISCPrimeModeling][Includesbackground][Centroid coordinates inNAD83][From 2000census]Exhibit F-3. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 290997006014015 728739.72 4240188.13 120 15 0.05931 0.02226 0.02483 0.22838 277.38Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001049 728121.83 4237967.39 26 4 0.05749 0.02261 0.02315 0.10466 585.00Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001048 728023.45 4237701.08 40 0 0.05472 0.02152 0.02203 0.10775 517.46Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001047 727929.43 4237420.75 29 2 0.05199 0.02044 0.02093 0.11297 446.53Regressionequation from EPAsoil measurementsvs. distanceBlock 290997007002016 728967.40 4236079.82 257 29 0.05192 0.01962 0.02116 0.17830 354.08Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006015010 728267.10 4238772.22 1 0 0.05069 0.01902 0.02122 0.10524 537.17Regressionequation from EPAsoil measurementsvs. distanceICF International F-44 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0 to7 Yearsin 2000CurrentNAAQS:ModeledAverageAnnual Pb AirConcentration(μg/m3)CurrentNAAQS:ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)CurrentNAAQS:Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)Modeled DryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From NATARatios][From NATARatios][From ISCPrimeModeling][Includesbackground][Centroid coordinates inNAD83][From 2000census]Exhibit F-3. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 290997007002017 729459.02 4235873.61 40 1 0.04686 0.01771 0.01910 0.17274 323.26Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006014006 728248.57 4241289.02 4 1 0.04638 0.01740 0.01941 0.28438 152.60Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006014007 728721.50 4240803.57 4 1 0.04470 0.01677 0.01871 0.24092 200.38Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001046 727815.41 4237624.53 11 0 0.04431 0.01742 0.01784 0.10202 426.20Regressionequation from EPAsoil measurementsvs. distanceBlock 290997007002020 729595.07 4235653.30 34 0 0.04131 0.01561 0.01684 0.18247 279.98Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012065 728085.71 4241532.82 9 2 0.04125 0.01548 0.01727 0.25331 136.43Regressionequation from EPAsoil measurementsvs. distanceICF International F-45 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0 to7 Yearsin 2000CurrentNAAQS:ModeledAverageAnnual Pb AirConcentration(μg/m3)CurrentNAAQS:ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)CurrentNAAQS:Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)Modeled DryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From NATARatios][From NATARatios][From ISCPrimeModeling][Includesbackground][Centroid coordinates inNAD83][From 2000census]Exhibit F-3. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 290997006015002 727830.79 4239565.70 469 95 0.04043 0.01517 0.01692 0.18086 281.93Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001032 733177.72 4236966.44 11 0 0.04020 0.01725 0.01563 0.26413 138.18Regressionequation from EPAsoil measurementsvs. distanceBlock 290997007002029 728299.71 4235527.81 253 46 0.03953 0.01494 0.01611 0.20949 221.57Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001000 727894.73 4238256.85 20 3 0.03885 0.01528 0.01564 0.07871 461.04Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001045 727651.84 4237637.10 30 4 0.03866 0.01520 0.01557 0.10264 375.94Regressionequation from EPAsoil measurementsvs. distanceBlock 290997007002033 728508.56 4235633.67 89 23 0.03823 0.01445 0.01558 0.17519 244.94Regressionequation from EPAsoil measurementsvs. distanceICF International F-46 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0 to7 Yearsin 2000CurrentNAAQS:ModeledAverageAnnual Pb AirConcentration(μg/m3)CurrentNAAQS:ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)CurrentNAAQS:Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)Modeled DryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From NATARatios][From NATARatios][From ISCPrimeModeling][Includesbackground][Centroid coordinates inNAD83][From 2000census]Exhibit F-3. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 290997006012064 727831.06 4241476.15 5 0 0.03807 0.01429 0.01593 0.23609 133.84Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001044 727656.50 4237556.45 31 3 0.03770 0.01482 0.01518 0.09817 372.64Regressionequation from EPAsoil measurementsvs. distanceBlock 290997007002030 728370.71 4235325.85 64 7 0.03702 0.01399 0.01509 0.20545 204.82Regressionequation from EPAsoil measurementsvs. distanceBlock 290997007002032 728448.85 4235633.00 35 13 0.03689 0.01394 0.01504 0.16207 241.55Regressionequation from EPAsoil measurementsvs. distanceBlock 290997007002014 728207.59 4236027.06 32 2 0.03663 0.01384 0.01493 0.12847 275.91Regressionequation from EPAsoil measurementsvs. distanceBlock 290997007002031 728365.30 4235630.64 9 4 0.03653 0.01381 0.01489 0.16131 236.52Regressionequation from EPAsoil measurementsvs. distanceICF International F-47 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0 to7 Yearsin 2000CurrentNAAQS:ModeledAverageAnnual Pb AirConcentration(μg/m3)CurrentNAAQS:ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)CurrentNAAQS:Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)Modeled DryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From NATARatios][From NATARatios][From ISCPrimeModeling][Includesbackground][Centroid coordinates inNAD83][From 2000census]Exhibit F-3. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 290997007002028 728275.96 4235183.83 42 6 0.03556 0.01344 0.01449 0.20387 188.79Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001019 727067.73 4236917.90 5 2 0.03379 0.01329 0.01361 0.15079 229.66Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001019 732630.91 4239062.17 9 1 0.03211 0.01378 0.01249 0.19496 169.46Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012057 727278.47 4241402.03 18 3 0.03204 0.01202 0.01341 0.20020 124.15Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001030 731517.59 4239632.06 3 0 0.03139 0.01347 0.01221 0.13580 239.29Regressionequation from EPAsoil measurementsvs. distanceBlock 290997007002021 729929.60 4235175.08 113 12 0.03096 0.01170 0.01262 0.15121 210.72Regressionequation from EPAsoil measurementsvs. distanceICF International F-48 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0 to7 Yearsin 2000CurrentNAAQS:ModeledAverageAnnual Pb AirConcentration(μg/m3)CurrentNAAQS:ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)CurrentNAAQS:Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)Modeled DryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From NATARatios][From NATARatios][From ISCPrimeModeling][Includesbackground][Centroid coordinates inNAD83][From 2000census]Exhibit F-3. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 171336002001059 737552.35 4243371.85 18 3 0.03072 0.01311 0.01216 0.06283 35.88Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001026 727069.87 4235706.28 4 0 0.03039 0.01195 0.01224 0.17894 166.27Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012052 728065.97 4242288.57 469 79 0.03036 0.01139 0.01271 0.18737 106.57Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001034 731393.01 4240508.01 2 0 0.03032 0.01294 0.01200 0.16788 181.05Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012053 727610.40 4242444.35 65 9 0.02957 0.01110 0.01238 0.16602 96.96Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001058 737866.05 4243527.52 50 5 0.02946 0.01257 0.01166 0.05966 34.10Regressionequation from EPAsoil measurementsvs. distanceICF International F-49 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0 to7 Yearsin 2000CurrentNAAQS:ModeledAverageAnnual Pb AirConcentration(μg/m3)CurrentNAAQS:ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)CurrentNAAQS:Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)Modeled DryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From NATARatios][From NATARatios][From ISCPrimeModeling][Includesbackground][Centroid coordinates inNAD83][From 2000census]Exhibit F-3. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 290997006012051 727496.28 4242739.01 40 5 0.02878 0.01080 0.01205 0.14616 88.54Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001023 726770.39 4235878.63 14 2 0.02816 0.01107 0.01134 0.16873 158.16Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001044 736092.50 4243307.84 310 34 0.02789 0.01190 0.01104 0.06465 43.52Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012062 726979.17 4241716.73 9 2 0.02768 0.01039 0.01159 0.16055 107.56Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001018 732645.21 4240142.05 12 0 0.02743 0.01177 0.01067 0.18413 137.91Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001049 737526.20 4243990.12 25 0 0.02693 0.01149 0.01066 0.05363 34.15Regressionequation from EPAsoil measurementsvs. distanceICF International F-50 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0 to7 Yearsin 2000CurrentNAAQS:ModeledAverageAnnual Pb AirConcentration(μg/m3)CurrentNAAQS:ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)CurrentNAAQS:Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)Modeled DryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From NATARatios][From NATARatios][From ISCPrimeModeling][Includesbackground][Centroid coordinates inNAD83][From 2000census]Exhibit F-3. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 171336002001068 737267.02 4244091.56 7 0 0.02678 0.01143 0.01060 0.05378 34.87Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001005 736121.22 4241808.07 1 0 0.02669 0.01146 0.01038 0.07529 50.50Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012059 726996.34 4242096.88 3 0 0.02667 0.01001 0.01116 0.14888 97.74Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006015008 727594.62 4238850.21 2 0 0.02666 0.01000 0.01116 0.07534 322.17Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001030 726519.70 4235844.35 83 14 0.02661 0.01046 0.01071 0.15980 144.58Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012033 727983.35 4244904.53 2 0 0.02658 0.00997 0.01113 0.09601 56.14Regressionequation from EPAsoil measurementsvs. distanceICF International F-51 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0 to7 Yearsin 2000CurrentNAAQS:ModeledAverageAnnual Pb AirConcentration(μg/m3)CurrentNAAQS:ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)CurrentNAAQS:Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)Modeled DryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From NATARatios][From NATARatios][From ISCPrimeModeling][Includesbackground][Centroid coordinates inNAD83][From 2000census]Exhibit F-3. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 290997006012025 729132.19 4243047.79 7 0 0.02619 0.00983 0.01096 0.15366 90.75Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012049 728045.19 4243137.18 17 3 0.02608 0.00979 0.01092 0.13977 83.98Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001056 737535.07 4243715.70 19 3 0.02578 0.01100 0.01021 0.05408 34.93Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001025 727049.76 4235855.16 11 0 0.02546 0.01001 0.01025 0.14515 172.51Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001003 737807.96 4240201.39 84 11 0.02535 0.01088 0.00986 0.06548 42.65Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012050 727262.39 4242454.74 9 0 0.02518 0.00945 0.01054 0.13719 92.63Regressionequation from EPAsoil measurementsvs. distanceICF International F-52 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0 to7 Yearsin 2000CurrentNAAQS:ModeledAverageAnnual Pb AirConcentration(μg/m3)CurrentNAAQS:ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)CurrentNAAQS:Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)Modeled DryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From NATARatios][From NATARatios][From ISCPrimeModeling][Includesbackground][Centroid coordinates inNAD83][From 2000census]Exhibit F-3. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 171336002001050 738021.90 4244044.10 57 9 0.02486 0.01061 0.00984 0.05027 32.13Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001036 726677.76 4234806.73 35 10 0.02462 0.00968 0.00991 0.14659 117.18Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001035 726978.18 4234630.36 96 8 0.02450 0.00963 0.00986 0.14867 119.40Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001031 726645.79 4235664.11 49 8 0.02444 0.00961 0.00984 0.14362 144.11Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012027 728340.53 4244960.07 1 0 0.02425 0.00910 0.01015 0.09229 56.30Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001034 726458.86 4234830.90 50 3 0.02411 0.00948 0.00971 0.14125 112.15Regressionequation from EPAsoil measurementsvs. distanceICF International F-53 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0 to7 Yearsin 2000CurrentNAAQS:ModeledAverageAnnual Pb AirConcentration(μg/m3)CurrentNAAQS:ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)CurrentNAAQS:Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)Modeled DryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From NATARatios][From NATARatios][From ISCPrimeModeling][Includesbackground][Centroid coordinates inNAD83][From 2000census]Exhibit F-3. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 290997008001032 726629.13 4235605.07 19 3 0.02380 0.00936 0.00958 0.13884 141.33Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001066 736981.22 4242795.62 16 1 0.02362 0.01008 0.00935 0.06012 40.59Regressionequation from EPAsoil measurementsvs. distanceBlock 290997007002025 729869.34 4234829.04 26 1 0.02279 0.00861 0.00929 0.11679 179.33Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001029 726473.38 4235421.99 8 3 0.02273 0.00894 0.00915 0.13169 129.35Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001037 726665.82 4234664.02 44 8 0.02253 0.00886 0.00907 0.13418 112.76Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012040 727235.14 4243621.25 27 0 0.02239 0.00840 0.00937 0.10087 70.00Regressionequation from EPAsoil measurementsvs. distanceICF International F-54 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0 to7 Yearsin 2000CurrentNAAQS:ModeledAverageAnnual Pb AirConcentration(μg/m3)CurrentNAAQS:ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)CurrentNAAQS:Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)Modeled DryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From NATARatios][From NATARatios][From ISCPrimeModeling][Includesbackground][Centroid coordinates inNAD83][From 2000census]Exhibit F-3. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 171336003001002 738906.28 4242577.65 23 0 0.02218 0.00952 0.00863 0.04698 32.09Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001057 737540.98 4243514.92 26 3 0.02217 0.00946 0.00878 0.05102 35.50Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012048 727358.98 4243376.33 1 0 0.02214 0.00831 0.00927 0.10889 74.80Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001018 726148.91 4237144.61 27 0 0.02211 0.00869 0.00890 0.12769 157.35Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012043 728139.39 4243773.97 2 0 0.02207 0.00828 0.00924 0.11126 72.21Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001017 725800.27 4236056.48 207 22 0.02157 0.00848 0.00868 0.12723 120.13Regressionequation from EPAsoil measurementsvs. distanceICF International F-55 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0 to7 Yearsin 2000CurrentNAAQS:ModeledAverageAnnual Pb AirConcentration(μg/m3)CurrentNAAQS:ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)CurrentNAAQS:Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)Modeled DryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From NATARatios][From NATARatios][From ISCPrimeModeling][Includesbackground][Centroid coordinates inNAD83][From 2000census]Exhibit F-3. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 171336002001051 737827.95 4244172.70 11 2 0.02074 0.00885 0.00821 0.04471 32.49Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012001 728421.23 4246464.88 88 7 0.02029 0.00761 0.00849 0.06602 42.84Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012037 727572.91 4244649.60 13 0 0.02021 0.00758 0.00846 0.08063 57.84Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012021 727622.36 4245152.84 110 6 0.01973 0.00740 0.00826 0.07348 52.61Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012026 728835.98 4245020.55 2 0 0.01967 0.00738 0.00823 0.08182 56.35Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012044 727441.70 4243857.29 10 3 0.01920 0.00720 0.00804 0.09113 67.62Regressionequation from EPAsoil measurementsvs. distanceICF International F-56 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0 to7 Yearsin 2000CurrentNAAQS:ModeledAverageAnnual Pb AirConcentration(μg/m3)CurrentNAAQS:ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)CurrentNAAQS:Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)Modeled DryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From NATARatios][From NATARatios][From ISCPrimeModeling][Includesbackground][Centroid coordinates inNAD83][From 2000census]Exhibit F-3. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 290997008001033 726064.73 4235169.25 53 0 0.01914 0.00753 0.00771 0.10874 109.89Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012020 727399.40 4245499.97 7 0 0.01903 0.00714 0.00797 0.06701 48.83Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012030 728293.96 4244469.02 6 3 0.01865 0.00700 0.00781 0.08781 62.23Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012041 727449.38 4244460.32 12 2 0.01812 0.00680 0.00758 0.07782 59.62Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012002 727972.60 4246917.69 18 0 0.01788 0.00671 0.00748 0.05615 39.38Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012031 727938.98 4244559.96 11 1 0.01786 0.00670 0.00748 0.08092 60.07Regressionequation from EPAsoil measurementsvs. distanceICF International F-57 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0 to7 Yearsin 2000CurrentNAAQS:ModeledAverageAnnual Pb AirConcentration(μg/m3)CurrentNAAQS:ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)CurrentNAAQS:Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)Modeled DryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From NATARatios][From NATARatios][From ISCPrimeModeling][Includesbackground][Centroid coordinates inNAD83][From 2000census]Exhibit F-3. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 171336002001041 738509.37 4245076.42 41 8 0.01766 0.00754 0.00699 0.03677 28.13Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012019 727579.22 4245892.79 13 3 0.01674 0.00628 0.00701 0.05947 45.97Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001107 735680.14 4242223.36 3 0 0.01669 0.00712 0.00661 0.05544 51.97Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001042 725103.83 4236817.60 18 3 0.01637 0.00644 0.00659 0.09378 106.01Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001003 725140.09 4237088.20 13 1 0.01631 0.00641 0.00657 0.09750 109.34Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001014 725116.05 4236750.29 2 0 0.01630 0.00641 0.00656 0.09279 105.82Regressionequation from EPAsoil measurementsvs. distanceICF International F-58 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0 to7 Yearsin 2000CurrentNAAQS:ModeledAverageAnnual Pb AirConcentration(μg/m3)CurrentNAAQS:ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)CurrentNAAQS:Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)Modeled DryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From NATARatios][From NATARatios][From ISCPrimeModeling][Includesbackground][Centroid coordinates inNAD83][From 2000census]Exhibit F-3. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 290997006012013 727516.48 4246481.73 52 5 0.01613 0.00605 0.00675 0.05335 41.58Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001033 731924.18 4243353.68 2 0 0.01607 0.00686 0.00636 0.09918 73.41Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001060 737221.98 4243458.08 12 2 0.01605 0.00685 0.00635 0.04320 37.10Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001042 733093.44 4235053.49 5 0 0.01574 0.00676 0.00612 0.10167 104.16Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001012 724888.21 4236496.57 3 0 0.01557 0.00612 0.00627 0.08680 96.80Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012011 727847.92 4246714.24 7 0 0.01554 0.00583 0.00650 0.05149 40.52Regressionequation from EPAsoil measurementsvs. distanceICF International F-59 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0 to7 Yearsin 2000CurrentNAAQS:ModeledAverageAnnual Pb AirConcentration(μg/m3)CurrentNAAQS:ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)CurrentNAAQS:Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)Modeled DryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From NATARatios][From NATARatios][From ISCPrimeModeling][Includesbackground][Centroid coordinates inNAD83][From 2000census]Exhibit F-3. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 171336003001017 733925.93 4240803.07 13 2 0.01545 0.00663 0.00601 0.09418 86.98Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012018 727609.44 4246315.72 37 1 0.01516 0.00569 0.00635 0.05225 42.87Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012022 728922.03 4245492.53 31 3 0.01510 0.00567 0.00632 0.06484 51.44Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001005 724770.39 4237068.84 4 0 0.01508 0.00593 0.00607 0.08827 97.59Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012014 727539.10 4246920.60 38 4 0.01494 0.00561 0.00625 0.04799 38.84Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012012 727772.31 4246744.42 2 0 0.01475 0.00554 0.00617 0.04898 40.23Regressionequation from EPAsoil measurementsvs. distanceICF International F-60 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0 to7 Yearsin 2000CurrentNAAQS:ModeledAverageAnnual Pb AirConcentration(μg/m3)CurrentNAAQS:ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)CurrentNAAQS:Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)Modeled DryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From NATARatios][From NATARatios][From ISCPrimeModeling][Includesbackground][Centroid coordinates inNAD83][From 2000census]Exhibit F-3. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 290997006012016 727715.57 4246528.74 36 8 0.01473 0.00553 0.00617 0.05003 41.56Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012006 727655.81 4247068.29 20 2 0.01472 0.00552 0.00616 0.04711 38.12Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012005 727758.77 4247026.77 14 2 0.01472 0.00552 0.00616 0.04757 38.48Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012015 727633.80 4246861.68 21 0 0.01466 0.00550 0.00614 0.04779 39.32Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012004 727988.01 4247103.93 7 1 0.01417 0.00532 0.00593 0.04625 38.27Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001032 732434.00 4243775.28 6 0 0.01394 0.00595 0.00552 0.08094 63.83Regressionequation from EPAsoil measurementsvs. distanceICF International F-61 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0 to7 Yearsin 2000CurrentNAAQS:ModeledAverageAnnual Pb AirConcentration(μg/m3)CurrentNAAQS:ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)CurrentNAAQS:Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)Modeled DryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From NATARatios][From NATARatios][From ISCPrimeModeling][Includesbackground][Centroid coordinates inNAD83][From 2000census]Exhibit F-3. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 290997006012007 727629.68 4247514.88 1 0 0.01392 0.00522 0.00583 0.04349 35.64Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001041 734065.76 4234674.59 2 0 0.01383 0.00594 0.00538 0.08788 78.49Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012010 728232.00 4247333.98 5 0 0.01365 0.00512 0.00571 0.04443 37.16Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001006 724360.62 4237030.20 10 5 0.01360 0.00535 0.00548 0.07711 86.79Regressionequation from EPAsoil measurementsvs. distanceBlock 290997006012003 728123.39 4247209.74 130 12 0.01353 0.00508 0.00566 0.04440 37.78Regressionequation from EPAsoil measurementsvs. distanceBlock 290997008001010 724327.70 4236523.43 2 0 0.01301 0.00512 0.00524 0.07053 83.40Regressionequation from EPAsoil measurementsvs. distanceICF International F-62 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0 to7 Yearsin 2000CurrentNAAQS:ModeledAverageAnnual Pb AirConcentration(μg/m3)CurrentNAAQS:ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)CurrentNAAQS:Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)Modeled DryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From NATARatios][From NATARatios][From ISCPrimeModeling][Includesbackground][Centroid coordinates inNAD83][From 2000census]Exhibit F-3. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 171336002001108 735966.95 4242212.54 4 0 0.01176 0.00502 0.00466 0.04172 49.74Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001009 732976.35 4252069.34 4 0 0.01156 0.00493 0.00458 0.03170 20.01Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001026 739822.35 4249773.88 2 0 0.01111 0.00474 0.00440 0.02312 17.92Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001030 732927.82 4245135.58 20 3 0.01100 0.00469 0.00435 0.05512 47.82Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001052 738918.72 4232880.44 11 0 0.01091 0.00468 0.00424 0.03608 31.06Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001015 734134.66 4241977.47 3 1 0.01058 0.00454 0.00411 0.05303 69.65Regressionequation from EPAsoil measurementsvs. distanceICF International F-63 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0 to7 Yearsin 2000CurrentNAAQS:ModeledAverageAnnual Pb AirConcentration(μg/m3)CurrentNAAQS:ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)CurrentNAAQS:Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)Modeled DryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From NATARatios][From NATARatios][From ISCPrimeModeling][Includesbackground][Centroid coordinates inNAD83][From 2000census]Exhibit F-3. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 171336002001037 732299.98 4246468.60 9 0 0.01052 0.00449 0.00416 0.04504 40.25Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001038 736866.71 4233738.13 12 0 0.01046 0.00449 0.00407 0.04446 43.36Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001012 736254.93 4251368.09 3 0 0.01028 0.00439 0.00407 0.02823 19.09Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001038 732505.82 4248322.47 7 0 0.00998 0.00426 0.00395 0.03564 30.76Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001011 735260.35 4251890.35 3 0 0.00994 0.00424 0.00393 0.02735 18.98Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001004 737525.30 4252254.74 8 0 0.00990 0.00422 0.00392 0.02507 16.82Regressionequation from EPAsoil measurementsvs. distanceICF International F-64 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0 to7 Yearsin 2000CurrentNAAQS:ModeledAverageAnnual Pb AirConcentration(μg/m3)CurrentNAAQS:ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)CurrentNAAQS:Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)Modeled DryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From NATARatios][From NATARatios][From ISCPrimeModeling][Includesbackground][Centroid coordinates inNAD83][From 2000census]Exhibit F-3. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 171336003001043 733446.25 4233838.78 2 0 0.00988 0.00424 0.00384 0.06199 76.80Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001000 740536.58 4241786.83 73 11 0.00975 0.00418 0.00379 0.02808 27.43Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001003 738581.35 4251459.89 6 1 0.00957 0.00408 0.00379 0.02280 17.00Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001007 736217.44 4253648.24 2 0 0.00953 0.00407 0.00377 0.02433 15.87Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001029 734596.43 4245667.61 19 4 0.00943 0.00402 0.00373 0.03802 38.50Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001063 740323.26 4238788.24 8 1 0.00925 0.00397 0.00360 0.02775 30.48Regressionequation from EPAsoil measurementsvs. distanceICF International F-65 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0 to7 Yearsin 2000CurrentNAAQS:ModeledAverageAnnual Pb AirConcentration(μg/m3)CurrentNAAQS:ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)CurrentNAAQS:Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)Modeled DryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From NATARatios][From NATARatios][From ISCPrimeModeling][Includesbackground][Centroid coordinates inNAD83][From 2000census]Exhibit F-3. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 171336003001054 739740.77 4231971.62 7 0 0.00923 0.00396 0.00359 0.02878 26.76Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001009 735197.90 4241730.65 9 1 0.00923 0.00396 0.00359 0.04160 59.57Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001012 734729.52 4241772.57 8 0 0.00920 0.00395 0.00358 0.04312 64.44Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001006 735393.76 4241891.86 3 0 0.00912 0.00391 0.00355 0.03883 56.52Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001055 740588.40 4231227.23 4 2 0.00905 0.00388 0.00352 0.02657 23.53Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001015 733988.46 4249102.54 11 4 0.00901 0.00385 0.00357 0.03057 26.34Regressionequation from EPAsoil measurementsvs. distanceICF International F-66 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0 to7 Yearsin 2000CurrentNAAQS:ModeledAverageAnnual Pb AirConcentration(μg/m3)CurrentNAAQS:ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)CurrentNAAQS:Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)Modeled DryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From NATARatios][From NATARatios][From ISCPrimeModeling][Includesbackground][Centroid coordinates inNAD83][From 2000census]Exhibit F-3. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 171336003001066 740381.33 4239647.35 9 1 0.00900 0.00386 0.00350 0.02660 29.86Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001026 736235.65 4239744.29 5 0 0.00895 0.00384 0.00348 0.03773 57.86Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001010 735066.36 4241875.26 2 0 0.00887 0.00381 0.00345 0.03958 59.91Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001014 735142.94 4249403.74 6 0 0.00887 0.00379 0.00351 0.02967 24.15Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001008 735260.73 4241950.60 2 0 0.00875 0.00376 0.00340 0.03781 57.43Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001018 736016.75 4248018.53 7 0 0.00874 0.00373 0.00346 0.02871 26.44Regressionequation from EPAsoil measurementsvs. distanceICF International F-67 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0 to7 Yearsin 2000CurrentNAAQS:ModeledAverageAnnual Pb AirConcentration(μg/m3)CurrentNAAQS:ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)CurrentNAAQS:Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)Modeled DryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From NATARatios][From NATARatios][From ISCPrimeModeling][Includesbackground][Centroid coordinates inNAD83][From 2000census]Exhibit F-3. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 171336002001091 734948.92 4241972.83 2 0 0.00871 0.00372 0.00345 0.03867 60.41Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001065 740900.87 4239016.49 10 4 0.00867 0.00372 0.00337 0.02552 28.22Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001106 735067.40 4241976.28 2 0 0.00866 0.00370 0.00343 0.03804 59.17Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001103 735405.02 4242188.07 2 0 0.00864 0.00369 0.00342 0.03540 54.54Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001007 735322.76 4242061.47 7 0 0.00859 0.00369 0.00334 0.03630 56.10Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001105 735186.97 4242024.19 6 0 0.00858 0.00366 0.00340 0.03702 57.64Regressionequation from EPAsoil measurementsvs. distanceICF International F-68 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0 to7 Yearsin 2000CurrentNAAQS:ModeledAverageAnnual Pb AirConcentration(μg/m3)CurrentNAAQS:ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)CurrentNAAQS:Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)Modeled DryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From NATARatios][From NATARatios][From ISCPrimeModeling][Includesbackground][Centroid coordinates inNAD83][From 2000census]Exhibit F-3. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 171336002001073 735024.05 4243274.65 2 0 0.00856 0.00365 0.00339 0.03613 50.44Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001104 735242.93 4242124.78 8 1 0.00847 0.00361 0.00335 0.03576 56.42Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001101 735065.65 4242173.14 6 1 0.00845 0.00361 0.00334 0.03618 57.75Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001093 735279.67 4242393.45 6 0 0.00829 0.00354 0.00328 0.03398 54.30Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001019 736622.49 4249083.49 2 0 0.00814 0.00347 0.00322 0.02534 22.97Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001051 738200.79 4232475.57 1 0 0.00813 0.00349 0.00316 0.02756 32.88Regressionequation from EPAsoil measurementsvs. distanceICF International F-69 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0 to7 Yearsin 2000CurrentNAAQS:ModeledAverageAnnual Pb AirConcentration(μg/m3)CurrentNAAQS:ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)CurrentNAAQS:Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)Modeled DryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From NATARatios][From NATARatios][From ISCPrimeModeling][Includesbackground][Centroid coordinates inNAD83][From 2000census]Exhibit F-3. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 171336003001044 734283.87 4233329.79 7 0 0.00803 0.00345 0.00312 0.04476 61.50Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001076 734539.48 4243602.90 4 0 0.00800 0.00341 0.00317 0.03742 51.41Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001022 737420.01 4248814.08 25 1 0.00754 0.00322 0.00298 0.02241 22.41Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001070 735389.94 4244507.20 7 0 0.00742 0.00317 0.00294 0.02931 41.27Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001028 737198.82 4246114.30 19 0 0.00735 0.00314 0.00291 0.02379 29.10Regressionequation from EPAsoil measurementsvs. distanceBlock 171336002001023 738625.88 4249231.42 54 4 0.00642 0.00274 0.00254 0.01839 20.07Regressionequation from EPAsoil measurementsvs. distanceICF International F-70 DRAFT - December 2006Appendix FSpatialLevelBlock Group orBlock FIPSUTMx UTMyPop2000ChildrenAges 0 to7 Yearsin 2000CurrentNAAQS:ModeledAverageAnnual Pb AirConcentration(μg/m3)CurrentNAAQS:ModeledAverageAnnual Pb AirExposureConcentrationfor Population(μg/m3)CurrentNAAQS:Children Ages0 to 4 YearsModeledAverageAnnual Pb AirExposureConcentration(μg/m3)Modeled DryDeposition(g/m2/yr)Estimated SoilPbConcentration(mg/kg)Method ofEstimating SoilConcentrations[From NATARatios][From NATARatios][From ISCPrimeModeling][Includesbackground][Centroid coordinates inNAD83][From 2000census]Exhibit F-3. Primary Pb Smelter: Attainment Scenario Media ConcentrationsBlock 171336003001058 739334.27 4229409.76 6 0 0.00556 0.00239 0.00216 0.01625 23.36Regressionequation from EPAsoil measurementsvs. distanceBlock 171336003001045 735284.84 4231890.54 2 0 0.00541 0.00232 0.00210 0.02255 44.10Regressionequation from EPAsoil measurementsvs. distanceICF International F-71 DRAFT - December 2006Appendix FICF International F-72 DRAFT – December 2006Exhibit F-4. Primary Pb Smelter Air Concentration Modeled Results Compared to Monitor Values1Average Monitored Pb concentrations2001 2002 2003 2004 2005Pilot AnalysisID or MonitorIDDistancefrom MainStacka(km)Two YearAverageModeledAir Conc(μg/m3)MeanConc(μg/m3)RatioMonitorto ModelMeanConc(μg/m3)RatioMonitorto ModelMeanConc(μg/m3)RatioMonitorto ModelMeanConc(μg/m3)RatioMonitorto ModelMeanConc(μg/m3)RatioMonitorto ModelUSEPA Region 7 Database HiVols Valuesb100 0.39 1.06 1.3 1.2 1.00.9 0.79 0.7101 0.45 4.04 0.52 0.1 1.1 0.3102 0.53 2.17 6.2 2.8 2.41.1 1.0 0.4103 0.73 0.186 1.05.4 0.80 4.3 0.39 2.1AirData Monitored Valuesc290990015 0.29 1.71 3.181.9 1.29 0.8 1.31 0.8 1.37 0.8 1.56 0.9290990004 0.34 2.461.27 0.5 0.939 0.4290990005 0.78 0.463 2.114.6 0.395 0.9 0.308 0.7 0.436 0.9 0.278 0.6290990011 0.89 0.323 1.524.7 0.508 1.6 0.414 1.3 0.558 1.7 0.282 0.9290990016 0.92 0.1510.300 2.0 0.196 1.3290990013 1.5 0.135 0.9046.7 0.241 1.8 0.194 1.4 0.437 3.2 0.202 1.5290990008 1.5 0.044 0.2736.2 0.068 1.5 0.102 2.3 0.097 2.2 0.137 3.1290990010 2.2 0.043 0.0771.8 0.069 1.6 0.034 0.8 0.046 1.1 0.057 1.3290990009 2.7 0.048 0.3327.0 0.048 1.0 0.086 1.8 0.105 2.2 0.069 1.5aThe facility spans roughly 0.2 by 1 km. Therefore, some monitorswill be closer to other emission release points than they areto the main stack.2bThe Pb air concentration detections (which appear to be TSP Pb) reported in the HiVols datasetof the EPA Region 7 database were averaged for each year. All3non-detects were assigned half of the detection limit for averaging. Averages for 2001 are from measurements taken between October and December; averages4for 2002 are from measurements taken all year; and averages for 2003 are from measurements taken between January and July.5cAirData values are for TSP Pb and are averages obtained from the AirData website monitor reports. In some cases, there is more than one monitor at a site.6Appendix FICF International F-73 DRAFT – December 2006Exhibit F-5. Primary Pb Smelter DepositionModeled Results Compared to Measured Values12003 Measured Deposition 2004 Measured DepositionHeight = 1 Foot Height = 10 Feet Height = 1 Foot Height = 10 FeetPilotAnalysis IDDistance toMain Stack(km)aModeledAverage PbDeposition(g/m2/yr)Average PbDeposition(g/m2/yr)RatioMeasured toModeledAverage PbDeposition(g/m2/yr)RatioMeasured toModeledAverage PbDeposition(g/m2/yr)RatioMeasured toModeledAverage PbDeposition(g/m2/yr)RatioMeasured toModeled1071 0.38 2.62 1.38 0.53 1.43 0.55 1.71 0.65 1.43 0.55181 0.49 1.23 0.920.75 0.97 0.79 0.97 0.79 0.88 0.71286 0.56 2.55 0.770.30 0.84 0.33 1.35 0.53 2.03 0.801073 0.70 0.45 0.68 1.51 0.65 1.44 0.77 1.71 0.72 1.60444 0.71 1.42 0.350.25 0.34 0.24 0.49 0.35 0.77 0.54240 0.76 0.37 0.300.82 0.34 0.91 0.44 1.17 0.48 1.30207 0.85 0.65 0.260.40 0.30 0.45 0.42 0.65 0.54 0.83576 1.0 0.53 0.160.31 0.17 0.32 0.34 0.64 0.37 0.69531 1.3 0.35 0.130.39 0.11 0.31 0.30 0.87 0.23 0.671072 1.9 0.21 0.05 0.26 0.22 1.04 0.13 0.63 0.10 0.46Average 0.55 0.64 0.80 0.82aThe facility spans roughly 0.2 by 1 km. Therefore, some monitorswill be closer to other emission release points than they areto the main stack.2

## Appendix F

ICF International F- 

## 74 DRAFT – December 2006 

## F.2 Primary Pb Smelter Measured Pb Concen trations for Use in the Ecological Risk 1
Assessment 2

3 This section provides a summary of Pb concentrations in soil, surface water, and sediment used 4 to estimate ecological receptor exposure and risk for the primary Pb smelter case study location. 5 Exhibit F-6 presents measured soil concentrations near the facility that were used in the 6 ecological risk assessment. Exhibits F-7, F-8, an d F-9 present measured Pb concentrations in 7 surface water bodies near the facility used for th e ecological risk assessment. Exhibits F-10, F8 11, and F-12 present measured Pb concentrations in sediment near the facility used for the 9 ecological risk assessment. Furt her discussion of media concentr ations used for the ecological 10 risk assessment is provided in Chapter 4, Section 4.1.5. 11

12

## Appendix F

ICF International F- 

## 75 DRAFT – December 2006 

## Exhibit F-6. Soil Sample Clusters Used to Estimate Ecological Receptor Exposure via Soil 1 and Corresponding Pb Anal ysis Results (ELM 2005) 2

Sample ID a 

### Measured Pb conc. (mg Pb/kg Soil) Detection Limit (mg/kg)

Sample Cluster 1: Soil Samples from West of Joachim Creek
JWSL1 (040) 448 0.30
JWSL2 (080) 472 0.31
JWSL3 (120) 449 0.30
JWSL4 (160) 484 0.31
JWSL5 (200) 476 0.31
JWSL6 (240) 393 0.39
JWSL7 (280) 376 0.38
JWSL8 (320) 363 0.38
JWSL9 (360) 412 0.42
JWSL10 (400) 381 0.40

Mean 425 0.35

Standard deviation 45.7
Sample Cluster 2: Soil Samples from Cryst al City Locations (South of Facility)
CCSL1 (01) 74.5 0.52
CCSL2 (02) 58.6 0.40
CCSL3 (03) 52.3 0.39
CCSL4 (04) 72.1 0.39
CCSL5 (05) 56.5 0.40
CCSL6 (06) 74.3 0.39

Mean 64.7 0.41

Standard deviation 10.0
Sample Cluster 3: Soil Samples from 'Near Festers Airport' Locations (South of Facility)
RTSL1 (001) 68.1 0.48
RTSL2 (002) 56 0.37
RTSL3 (007) 77.1 0.38
RTSL4 (008) 39.8 0.43
RTSL5 (009) 36.6 0.41
RTSL6 (010) 37.6 0.42
RTSL7 (011) 49.5 0.29
RTSL8 (012) 45.7 0.37
RTSL9 (05) 40.5 0.36
RTSL10 (06) 34.3 0.35

Mean 48.5 0.39

Standard deviation 14.4

a 

### Sampling location numerical designations used in ELM (2005) Figure 6 are provided in parentheses. 

## 3

4

## Appendix F

ICF International F- 

## 76 DRAFT – December 2006 

## Exhibit F-7. Joachim Creek Measured Sur face Water Dissolved Pb Concentration Data 1 for Primary Pb Smelter Case Study (ELM 2005) 2

Joachim Creek Sample ID No. Dissolved Pb
Concentration for Surface Water ( μ g/L) a 

### Hardness (mg/L of CaCO 3 

### )

Cluster 1

JC01-01 Not detected 290

JC01-02 Not detected 280

JC01-03 Not detected 280

Cluster 2

JC02-01 Not detected 270

JC02-02 Not detected 280

JC02-03 Not detected 280

Cluster 3

JC03-01 Not detected 310

JC03-02 Not detected 270

JC03-03 Not detected 270

JC04-01 Not detected 280

JC04-02 Not detected 280

JC04-03 Not detected 280

Cluster 4

JC05-01 Not detected 270

JC05-02 Not detected 270

JC05-03 Not detected 280

JC06-01 Not detected 270

JC06-02 Not detected 270

JC06-03 Not detected 270

JC07-01 Not detected 280

JC07-02 Not detected 270

JC07-03 Not detected 270

Cluster 5

JC08-01 Not detected 270

JC08-02 Not detected 270

JC08-03 Not detected 280

a 

### Detection limit for dissolved Pb in this analysis was 3 μ g/L. 

## 3 4

## Appendix F

ICF International F- 

## 77 DRAFT – December 2006 

## 1 Exhibit F-8. Mississippi River Measured Dissolved Pb Surface Water 2 Concentration Data for Primary Pb Smelter Case Study (ELM 2005) 3

Location with Respect to Facility and Sample ID No. Dissolved Pb
Concentration for Surface Water ( μ g/L) a 

### Hardness (mg/L of
CaCO 3 

### )

Upstream

PONAR04-01 Not detected 210

Near Facility

PONAR01-01 Not detected 220

PONAR02-01 Not detected 230

PONAR03-01 Not detected 230

PONAR05-01 Not detected 230

Downstream

PONAR06-01 Not detected 240

PONAR07-01 Not detected 230

a 

### Detection limit for dissolved Pb in this analysis was 3 μ g/L. 

## 4 5 Exhibit F-9. Other Surface Water, Drainage Areas and U-Shaped Pond, 6
Measured Surface Water Dissolved Pb Concentration 7 Data for Primary Pb Smelter Case Study (ELM 2005) 8

Surface Waters and Sample ID No

. a 

### Dissolved Pb
Concentration for Surface Water ( μ g/L) b 

### Hardness (mg/L of CaCO 3 

### )

Drainage Area Samples

CHRDDP-01 (drainage) Not detected 700

CHRDDP-02 (JC) Not detected 230

RRDP-02 (MR) Not detected 240

DAMUP-SW01 (drainage) Not detected 480

DAMUP-02 (JC) Not detected 480 U-Shaped Pond

UPOND-01 Not detected 170

UPOND-02 Not detected 170

UPOND-03 Not detected 160

a 

### Abbreviations: JC = Joachim Creek; MR = Mississippi River. 

## 9

b 

### Detection limit for dissolved Pb in this analysis was 3 μ g/L. 

## 10 11 12

## Appendix F

ICF International F- 

## 78 DRAFT – December 2006 

## Exhibit F-10. Joachim Creek Measured Se diment Pb Concentration Data for 1 Primary Pb Smelter Case Study (ELM 2005) 2

Sample Cluster and Sample
ID No. Pb Concentration in Dry Sediment (mg/kg)

Cluster 1

JC01-01 24.1

JC01-02 53

JC01-03 32.3

Mean 36.5

Standard deviation 14.9

Cluster 2

JC02-01A 79.9

JC02-01B 55.4

JC02-02 31

JC02-03 57.6

Mean 56.0

Standard deviation 20.0

Cluster 3

JC03-01 44.3

JC03-02 52.2

JC03-03 54.8

JC04-01 131

JC04-02 164

JC04-03 25.8

Mean 78.7

Standard deviation 55.3

Cluster 4

JC05-01 25.5

JC05-02 23.8

JC05-03 18.1

JC06-01A 41.1

JC06-01B 29.8

JC06-02 23.3

JC06-03 40.4

JC07-01A 23.7

JC07-01B 25.3

JC07-02 36.7

JC07-03 42

Mean 30.0

Standard deviation 8.5

Cluster 5

JC08-01 29

JC08-02 35.2

JC08-03 39.3

Mean 34.5

Standard deviation 5.2

## Appendix F

ICF International F- 

## 79 DRAFT – December 2006 

## Exhibit F-11. Mississippi River Measured Sediment Pb Concentration Data 1 for Primary Pb Smelter Case Study (ELM 2005) 2

Location with Respect to Facility Sample ID No. Pb Concentration in Dry Sediment (mg/kg)

Upstream PONAR04-SD01 10.5

PONAR04-SD02 10.2

PONAR04-SD03 15.8

PONAR04-SD04 8.7

PONAR04-SD05 28.3

Mean 14.7

Standard deviation 8.1 Near Facility PONAR01-SD01 13.5

PONAR01-SD02 11.5

PONAR01-SD03 14.3

PONAR01-SD04 17.6

PONAR01-SD05 8.3

PONAR02-SD01 37.3

PONAR02-SD02 96.5

PONAR02-SD03 37.8

PONAR02-SD04 56.8

PONAR02-SD05 84

PONAR03-SD01 39.5

PONAR03-SD02 17.8

PONAR03-SD03 32.4

PONAR03-SD04 48.9

PONAR03-SD05 37.8

PONAR05-SD01 16.1

PONAR05-SD02 6.7

PONAR05-SD03 9.1

PONAR05-SD04 6.2

PONAR05-SD05 10.3

Mean 30.1

Standard deviation 25.6

Downstream PONAR06-SD01 8.4

PONAR06-SD02 8.6

PONAR06-SD03 12.9

PONAR06-SD04 13

PONAR06-SD05 9.3

PONAR07-SD01 14.9

PONAR07-SD02 11.5

PONAR07-SD03 12.5

PONAR07-SD04 18.2

PONAR07-SD05 8.5

RRDP-SD02 14.8

Mean 12.1

Standard deviation 3.2


## 3

## Appendix F

ICF International F- 

## 80 DRAFT – December 2006 

## Exhibit F-12. Other Surface Water, Drai nage Areas and U-Shaped Pond, Measured 1
Sediment Pb Concentration Data for Pr imary Pb Smelter Ca se Study (ELM 2005) 2

Sampled Surface Water Body and Sample ID No. Pb Concentration in Dry Sediment (mg/kg)

Drainage Area

CHRDDP 110

Drainage Area

RRDP-02 14.8

U-Shaped Pond

UPOND-01 190

UPOND-02 278

UPOND-03 153

REFPOND-01 59.3

Mean 170.1

Standard deviation 90.6


## 3

4

5

## Appendix F

ICF International F- 

## 81 DRAFT – December 2006 

## F.3 Statistical Modeling for Estimating Pb Concentrations in House Dust for the 1 Primary Pb Smelter 2

3 F.3.1 Purpose 4
5 The objective of the house dust analys is was to derive a statistical model that could be used to 6
estimate Pb concentrations in house dust from Pb concentrations in other media at locations 7
where the media concentrations had not been dir ectly measured. The models derived were used 8

to estimate house dust Pb concentrations for the cens us blocks closest to th e primary Pb smelter. 9

10
F.3.2 Overview of Methods 11

12 The primary approach taken in this analysis was to derive regression-type models that describe 13 the relationships among the environmental media c oncentrations at the primary Pb smelter case 14 study location. This approach was informed by previous analysis completed by EPA and other 15 researchers with similar data. It is possible that more complex appr oaches (e.g., structural 16 equation modeling) might also be used to expl ore and/or confirm the relationships among the 17 variables examined. Based on preliminary analyses of the data, the regression analyses were best 18 justified by the quality and quantity of data that were available. 19

20
F.3.3 Data Sources 21

22
All of the data used in the an alyses were obtained electronically from EPA Region 7 (2006). Pb 23

concentrations in residential soil and house and road dust were obtained from samples taken by 24 EPA contractors as part of Supe rfund investigations conducted in the area around the primary Pb 25 smelter from March 2003 to May 2006 (see Exhibit F-13). The data set also contained Pb 26 loading information related to indoor floor dust, dust obtained from wipe samples, and total dust. 27

28 UTM coordinates were provided for all of the sa mples and were used in the analysis of the 29 spatial patterns of soil and dus t contamination. From March 2002 to May 2006, concentrations 30
of Pb in both house dust and residential soil were measured at only 17 locations (homes) near the 31 primary Pb smelter. Pb concentrations in re sidential soil only were measured at 12 other 32 residential locations, for which there were no accompanying Pb house dust measurements (see 33 Exhibit F-13). Note that the soil measurements were taken post-remediation; thus, the effect of 34 the facility operations on soil Pb concentrations (from stack emissions or road dust) are expected 35 to be greatly attenuated compared to the soil Pb c oncentrations that existed prior to remediation. 36

37

## Appendix F

ICF International F- 

## 82 DRAFT – December 2006 

## Exhibit F-13. Primary Pb Smelter: Summary of Pb Concentrations in 1
Residential Soil and House and Road Dust 2

Data Field Sampling

Locations a 

### Sampling
Dates Samples per
Location Mean (Range) Total Samples Distances to
Main Stack Mean (Range) (m) Pb Concentration Mean (Range) mg/kg

House Dust 17 March 2002 to May 2006 9 (3 to 20) 159 898 (395 to 1,594) 1,544 (348 to 3,812)

Residential
Soil 17 March 2002 to May 2006 13 (4 to 23) 215 898 (395 to 1,594) 81 (31 to 139)

Road Dust 21 b 

### May 2002 to April 2006 42 (14 to 139) 891 609 (161 to 1,693) 28,300 (1,570 to 111,000)

a 

### Number of locations include both house dust and residential soil Pb data. 

## 3

b 

### Sampling locations with the same UTM coordinates were combined. 

## 4
5 Anecdotal evidence suggested that road dust may be a major source of Pb in the air and in house 6 dust at residences around the primary Pb smelte r; therefore, an analysis was performed to 7 identify the relationships between road dust Pb co ncentrations and house dust Pb concentrations. 8 EPA contractors analyzed almost 900 road dust samples from May 2002 to April 2006. The road 9 dust samples were taken from 21 locations ranging from 161 to about 1,700 meters (m) from the 10

main stack. 1 

## Pb sampling locations for road dust differe d from the residential soil and house dust 11 sample locations; the distance between road dus t sampling locations and the 17 residential soil 12 and house dust sampling locations ranged from 52 to 1328 m (average 280 m). 13

14 In the absence of spatially detailed air concen tration monitoring data, the house dust levels were 15

fit to modeled air concentrations . Long-term average air concen trations predicted in the ISC16

Prime “current conditions” runs for census bloc k and block group centroids located near the 17 residential house dust sampling locations were used (see Exhibit F-14). Again, the centroids 18 were not precisely co-located with any of the house dust sampling locations. 19

1 

### Samples were taken from both lanes of the road at most sites, but the results have been combined, using averages or geometric means, for samples from “inbound” and “outbound” lanes.Appendix FFrom Non-AirSourcesFrom Air-RelatedSources TotalFrom Non-AirSourcesFrom Air-RelatedSources Total290997006014042 1 52 5211 5263 52 3283 3335290997006014039 5 52 5146 5198 52 3283 3335290997006014052 1 52 4613 4664 52 2752 2804290997006014032 1 52 4211 4262 52 3283 3335290997006014033 1 52 3829 3881 52 3273 3325290997006014051 6 52 2937 2989 52 2777 2829290997006014046 5 52 2899 2951 52 2899 2951290997006014027 14 52 2139 2191 52 2139 2191290997006014043 2 52 2074 2126 52 2074 2126290997006014049 1 52 1929 1981 52 1929 1981290997006014028 2 52 1755 1806 52 1755 1806290997006014029 1 52 1540 1591 52 1540 1591290997006014050 1 52 1444 1496 52 1444 1496290997006014044 6 52 1096 1148 52 1096 1148290997006015016 8 52 854 905 52 854 905290997006014025 13 52 846 898 52 846 898290997006015017 6 52 741 792 52 741 792290997006015015 2 52 734 786 52 734 786290997006014021 2 52 564 616 52 564 616290997006015012 5 52 501 552 52 501 552290997006015018 2 52 499 551 52 499 551290997006015001 11 52 481 533 52 481 533290997006015013 1 52 459 511 52 459 511290997006015011 1 52 432 483 52 432 483290997006015019 5 52 357 409 52 357 409290997007002006 1 31 132 163 31 132 163290997007002009 1 31 67 98 31 67 98290997007002011 3 31 57 88 31 57 88290997007002012 3 31 55 86 31 55 86290997006014018 3 31 53 84 31 53 84290997006014015 15 31 38 69 31 38 69290997008001049 4 31 37 68 31 37 68290997008001047 2 31 33 64 31 33 64Exhibit F-14. Primary Pb Smelter: Modeled Indoor Dust ConcentrationsBlock Group or BlockFIPSChildrenAges 0 to 7Years in2000Current Conditions Scenario: Predicted IndoorDust Concentrations (mg/kg)Attainment Scenario: Predicted Indoor DustConcentrations (mg/kg)ICF International F-83 DRAFT - December 2006Appendix FFrom Non-AirSourcesFrom Air-RelatedSources TotalFrom Non-AirSourcesFrom Air-RelatedSources TotalExhibit F-14. Primary Pb Smelter: Modeled Indoor Dust ConcentrationsBlock Group or BlockFIPSChildrenAges 0 to 7Years in2000Current Conditions Scenario: Predicted IndoorDust Concentrations (mg/kg)Attainment Scenario: Predicted Indoor DustConcentrations (mg/kg)290997007002016 29 31 33 64 31 33 64290997007002017 1 31 30 61 31 30 61290997006014006 1 31 30 61 31 30 61290997006014007 1 31 29 60 31 29 60290997006013 176 31 28 60 31 28 60290997006012065 2 31 26 58 31 26 58290997006015002 95 31 26 57 31 26 57290997007002029 46 31 25 57 31 25 57290997008001000 3 31 25 56 31 25 56290997008001045 4 31 25 56 31 25 56290997007002033 23 31 24 56 31 24 56290997008001044 3 31 24 55 31 24 55290997007002030 7 31 24 55 31 24 55290997007002032 13 31 24 55 31 24 55290997008004 197 31 23 55 31 23 55290997007002014 2 31 23 55 31 23 55290997007002031 4 31 23 55 31 23 55290997007002028 6 31 23 54 31 23 54290997007003 77 31 22 53 31 22 53290997008001019 2 31 22 53 31 22 53290997006011 45 31 21 53 31 21 53171336003001019 1 31 20 52 31 20 52290997006012057 3 31 20 52 31 20 52290997007002021 12 31 20 51 31 20 51171336002001059 3 31 20 51 31 20 51290997006012052 79 31 19 51 31 19 51290997006012053 9 31 19 50 31 19 50171336002001058 5 31 19 50 31 19 50290997006012051 5 31 18 50 31 18 50290997008001023 2 31 18 49 31 18 49171336002001044 34 31 18 49 31 18 49290997006012062 2 31 18 49 31 18 49290997008001030 14 31 17 48 31 17 48ICF International F-84 DRAFT - December 2006Appendix FFrom Non-AirSourcesFrom Air-RelatedSources TotalFrom Non-AirSourcesFrom Air-RelatedSources TotalExhibit F-14. Primary Pb Smelter: Modeled Indoor Dust ConcentrationsBlock Group or BlockFIPSChildrenAges 0 to 7Years in2000Current Conditions Scenario: Predicted IndoorDust Concentrations (mg/kg)Attainment Scenario: Predicted Indoor DustConcentrations (mg/kg)290997006031 737 31 17 48 31 17 48290997006012049 3 31 17 48 31 17 48171336002001056 3 31 16 48 31 16 48171336003001003 11 31 16 47 31 16 47171336002001050 9 31 16 47 31 16 47290997008001036 10 31 16 47 31 16 47290997008001035 8 31 16 47 31 16 47290997008001031 8 31 16 47 31 16 47290997008001034 3 31 15 47 31 15 47290997008001032 3 31 15 46 31 15 46171336002001066 1 31 15 46 31 15 46290997008005 104 31 15 46 31 15 46290997007002025 1 31 15 46 31 15 46290997008001029 3 31 15 46 31 15 46290997008001037 8 31 14 46 31 14 46171336002001057 3 31 14 45 31 14 45290997007004 49 31 14 45 31 14 45290997008001017 22 31 14 45 31 14 45290997008002 92 31 13 45 31 13 45171336002001051 2 31 13 45 31 13 45290997008007 141 31 13 44 31 13 44290997006012001 7 31 13 44 31 13 44290997008006 58 31 13 44 31 13 44290997006012021 6 31 13 44 31 13 44290997006012044 3 31 12 44 31 12 44290997007001 70 31 12 43 31 12 43290997006012030 3 31 12 43 31 12 43290997006012041 2 31 12 43 31 12 43290997006012031 1 31 11 43 31 11 43171336002001041 8 31 11 43 31 11 43290997009002 86 31 11 42 31 11 42290997006051 62 31 11 42 31 11 42290997006012019 3 31 11 42 31 11 42ICF International F-85 DRAFT - December 2006Appendix FFrom Non-AirSourcesFrom Air-RelatedSources TotalFrom Non-AirSourcesFrom Air-RelatedSources TotalExhibit F-14. Primary Pb Smelter: Modeled Indoor Dust ConcentrationsBlock Group or BlockFIPSChildrenAges 0 to 7Years in2000Current Conditions Scenario: Predicted IndoorDust Concentrations (mg/kg)Attainment Scenario: Predicted Indoor DustConcentrations (mg/kg)290997009001 120 31 11 42 31 11 42290997008001042 3 31 10 42 31 10 42290997008001003 1 31 10 42 31 10 42290997006012013 5 31 10 42 31 10 42171336002001060 2 31 10 42 31 10 42290997006054 63 31 10 41 31 10 41290997008003 72 31 10 41 31 10 41171336003001017 2 31 10 41 31 10 41290997006012018 1 31 10 41 31 10 41290997006012022 3 31 10 41 31 10 41290997006012014 431 10 41 31 10 41290997006012016 831 9 41 31 9 41290997006012005 231 9 41 31 9 41290997006012006 231 9 41 31 9 41290997001044 16431 9 40 31 9 40290997006012004 131 9 40 31 9 40290997008001006 531 9 40 31 9 40290997006012003 1231 9 40 31 9 40290997009003 25431 8 39 31 8 39290997007005 7431 8 39 31 8 39290997010001 14531 7 39 31 7 39171336002001030 331 7 38 31 7 38290997006053 13931 7 38 31 7 38171336003001015 131 7 38 31 7 38171336003001000 1131 6 38 31 6 38171336002001003 131 6 37 31 6 37171336002001029 431 6 37 31 6 37171336003001063 131 6 37 31 6 37171336003001009 131 6 37 31 6 37171336003001055 231 6 37 31 6 37171336002001015 431 6 37 31 6 37171336003001066 131 6 37 31 6 37171336003001065 4 31 6 37 31 6 37ICF International F-86 DRAFT - December 2006Appendix FFrom Non-AirSourcesFrom Air-RelatedSources TotalFrom Non-AirSourcesFrom Air-RelatedSources TotalExhibit F-14. Primary Pb Smelter: Modeled Indoor Dust ConcentrationsBlock Group or BlockFIPSChildrenAges 0 to 7Years in2000Current Conditions Scenario: Predicted IndoorDust Concentrations (mg/kg)Attainment Scenario: Predicted Indoor DustConcentrations (mg/kg)290997006052 187 31 5 37 31 5 37171336002001104 1 31 5 37 31 5 37171336002001101 1 31 5 37 31 5 37171336002001022 1 31 5 36 31 5 36171336002001023 4 31 4 35 31 4 35ICF International F-87 DRAFT - December 2006

## Appendix F

ICF International F- 

## 88 DRAFT – December 2006 

## 1

2 F.3.4 Data Manipulation 3

4 Developing house dust prediction models for the primary Pb smelter presented a number of 5 challenges. Primary among these challenges was th at the house dust, resi dential soil, and road 6
dust measurements were not taken at the same ti me. In addition, as noted above, the road dust 7 and air modeling input data were spatially re moved from the residential house dust sampling 8 locations. For these reasons, two approaches were taken to develop data sets for the regression 9 analyses. 10

11 F.3.4.1 Data Set Based on Spatial-Temporal “Windows” 12

13 The first approach involved identifying observations from each of the various environmental 14 media that were “close” together in time and space, and using these data to create composite data 15 points. Each data point represen ted the mean or geometric mean va lue of all of the observations 16 in each medium within defined spatial and tem poral “windows” of the nearest residential house 17
dust observation. The house dust observations we re used as the cente rs of the “windows” 18
because there were fewer house dust observations than for any other medium (and because house 19 dust was the “dependent” variable whose values we re being predicted). The dimensions of the 20 windows were defined for two purposes: 21

22 1. Maintain, to the extent possible, the tempor al and spatial relationships between the house 23 dust measurements and the measured/estimated concentrations in the other media; and 24 2. Include as many input data as possible per window. 25

26 After looking at a number of possible approaches to stratify the data, window “dimensions” were 27 chosen with the following spatial and temporal boundaries: 28

29

• House dust measurements from the same lo cation occurring within ± 30 days of each 30
other. 31

32

• Residential soil measurements within ± 30 da ys of the nearest house dust sampling date 33 for the same residence (soil and house dust measurements were taken from the same 34 locations, so no spatial window was necessary). 35

36

• Road dust Pb measurements from all of th e sampling locations within 300 m, or the 37 closest road dust sampling location, taken within ± 60 days of the house dust sample. If 38 there was no road dust sampling location within 300 m, then the measurements from the 39 nearest road dust sampling locations were use d. For five homes, there were no road dust 40 samples taken within 60 ± days of any house dust sampling events. In these cases, all of 41
the road dust results from w ithin 300 m, or from the closest road dust sampling location, 42 were averaged as above, and associated with the house dust sampling dates in the 43

database. 44

45

## Appendix F

ICF International F- 

## 89 DRAFT – December 2006 

## • Average long-term air Pb concentrations es timated for census block centroids within 200 1 m of each house dust Pb measurement. Most house dust sampling locations had several 2 centroids less than 200 m away, but it was found that averaging the air Pb levels within 3 200 m produced the highest correlations with the house dust samples. Because no 4 specific date is associated with the estimated air Pb concentrations, the same air 5
concentration values were used for all “windows” for each house dust location. 6

7 The resulting data set containe d 125 records comprised of air, residential soil, and house and 8 road dust data, along with a number of other auxi liary variables relating to location, distance 9 from the main stack, and sampling dates. 10

11 F.3.4.2 Data Set Based on House Dust Sampling Locations 12

13 The number of samples (and therefore the am ount of information) combined into the 14
observations for the individual “windows” varied greatly. The “house” data set, which combines 15 all of the data for each house dust sampling lo cation was developed in order to avoid giving 16 undue weight to points with little observational data. The “house” data set includes 17 values for 17 each variable. Each value corresponds to the mean (or geometric mean) of all of the values for 18
that variable for all the “windows” associated with a gi ven house dust sampling location. As 19 described below, the modeling re sults obtained using the “windows” and the “house” data sets 20 are quite similar. 21

22 F.3.5 Results of the Statistical Analysis 23

24 F.3.5.1 Exploratory Analysis 25

26 A number of exploratory analyses were conducted to confirm the ge neral relationshi ps within the 27 data set, and to rule out the potential for omitted variables to affect the results of the regression 28 analysis. The exploratory analyses included graphical summaries and calculation of simple 29 correlation coefficients among the variable s and their log-transformed values. 30

31 For House 3, there were two house dust Pb measurements (5,230 and 23,640 mg/kg) that were 32 very different from all other measurements taken at that house (mean = 1,190 mg/kg, 15 33 samples). The two different measurements were the last two samples take n at House 3 (in April 34 and October 2005). It was decided to omit the two measurements from the analysis on the 35 grounds that there may have been some factor a ffecting house dust Pb con centrations during this 36 period that had not been operating previously. After removal of these two data points, the house 37

dust Pb concentrations in th e “windows” data set were we ll-represented by a lognormal 38 distribution, and thus both the untransformed a nd log-transformed house dust Pb values were 39 included in the regression an alyses, as discussed below. 40

41 As expected, average house dust Pb concentrat ions were found to be highly (inversely) 42 correlated with distance to the main stack, when the “windows” data set was used (see Exhibit F43 15). If it is believed that Pb in air is a major c ontributor to house dust Pb levels, these results are 44 to be expected. A weak, but significant inverse correlation between house dust Pb 45
concentrations and residential soil Pb was found . The reason for this correlation was not clear, 46

## Appendix F

ICF International F- 

## 90 DRAFT – December 2006 

## and the correlation loses significance in some, bu t not all, regression models when measures of 1
air Pb are also included. Aver age and log-transformed road dus t Pb concentrations were found 2 to be weakly correlated with si milarly expressed house dust Pb stat istics, but the correlations lost 3 significance when included in models with reside ntial soil and air Pb (see Exhibit F-16). 4

5 Exhibit F-15. Primary Pb Smelter: Relationship Between House Dust Pb 6
Concentrations and Distance from Main Stack 7

y = -1.2552x + 2451.5

R 2 

### = 0.1544

0 1,000 2,000 3,000 4,000 5,000 6,000

300 600 900 1,200 1,500 1,800

Distance from the Main Stack (m)House Dust Pb Concentration(μg/g)



## 8 9

## Appendix F

ICF International F- 

## 91 DRAFT – December 2006 

## Exhibit F-16. Primary Pb Smelter: Relationship Between Road Dust Pb 1 Concentrations and Nearby House Dust Pb Concentrations 2

y = 0.0126x + 1167.2

R 2 

### = 0.0129

0 1,000 2,000 3,000 4,000 5,000 6,000

0 10,000 20,000 30,000 40,000 50,000

Road Dust Pb Concentration (μg/g)House Dust Pb Concentration(μg/g)



## 3 4 F.3.5.2 Regression Modeling 5

6 A systematic search for multiple regression models was conducted to maximize the proportion of 7 explained variance (R 2 

## ) in house dust (DustPb) and the lo g-transformed house dust (lnDustPb) 8 values. Forwards and backwards stepwise regr ession methods were used, with contribution to 9
the F-statistic as the inclusion/removal cr iterion for untransformed and log-transformed 10
variables. Residential soil and road dust Pb were “forced” back into well-fitted models to 11

determine their effect on R 2 

## and on the coefficients for other variables. Probability plots of 12 residuals and other diagnos tics were used to evaluate the quality of the fit and to look for failures 13 in assumptions required to produce unbiased estima tes. Results of the best regressions derived 14
from the “windows” data set are summarized in Exhibit F-17. 15

16

## Appendix F

ICF International F- 

## 92 DRAFT – December 2006 

## Exhibit F-17 Indoor Dust Regression Mo dels Tested and Summary of Regression 1 Analysis Results for the “Windows” Data Set a,b 

## 2

Model Independent
Variable Dependent Variable(s) Estimated Values (m) Coefficient p-Value(s) Adjusted R 2



### Intercept 685.7 0.000 W1 DustPb AIR_200 1625.2 0.000 0.322

Intercept 1012.5 0.000

SoilAvg -4.699 0.002 W2 DustPb

AIR_200 1687.2 0.000 0.367

Intercept 2285.6 0.000 W3 DustPb lnAIR200 791.0 0.000 0.343

Intercept 2863.2 0.000

SoilAvg -6.317 0.000 W4 DustPb

lnAIR200 874.7 0.000 0.426

Intercept 6.4540 0.000 W5 LnDustPb AIR_200 1.2361 0.000 0.268

Intercept 6.6725 0.000

SoilAvg -0.0031 0.020 W6 LnDustPb

AIR_200 1.2777 0.000 0.294

Intercept 7.7366 0.000 W7 LnDustPb lnAIR200 0.6520 0.000 0.336

Intercept 8.1506 0.000

SoilAvg -0.0045 0.000 W8 LnDustPb

lnAIR200 0.7120 0.000 0.395

a 

### Abbreviations: DustPb = Pb concentration in house dust; LnDustPb = log-transformed 

## 3
value; AIR_200 = ambient air co ncentration within 200 meters (m) of house dust sampling 

## 4 locations; lnAIR200 = log-transformed concentration; and SoilAvg = average residential soil 

## 5

Pb concentration. 

## 6

b 

### Models labeled “W” were developed considering media concentrations within a particular 

## 7 spatial distance and temporal period of the nearest house dust observation. 

## 8
9 In all of the regressions, it was found that variables repr esenting ambient air Pb concentrations at 10 monitors within 200 m of house dust sampling locations (AIR200, lnAIR200) accounted for the 11 bulk of explained variance in hous e dust Pb levels (see Exhibit F-17). The only other variable 12
related to environmental concentrations that retain ed significance and/or re sulted in increases in 13 explained variance was the average residential soil Pb (SoilAvg). Surp risingly, the sign of the 14
coefficient for residential soil Pb was consiste ntly negative in those regressions where it was 15 statistically significant. When the natural log of house dust Pb concentration (LnDustPb) was 16 used as the “independent” variable, the R 2 

## values for regressions incl uding air and re sidential soil 17 Pb levels were reduced slightly compared to the results obtained for the analogous regressions 18 using the untransformed DustPb values. Howeve r, the pattern of regr ession residuals was 19 considerably improved (more nearly normal) when the log-transformed house dust was fit 20
instead of the untransformed values. No variable s representing road dust Pb concentration were 21

## Appendix F

ICF International F- 

## 93 DRAFT – December 2006 

## ever found to retain statistical significance when air-related variables were included in the 1 regression models. 2

3 Similar results were found when regressions were fit using the “house” da ta set, as shown in 4
Exhibit F-18. Similar coefficient values are s een for analogous regression s based on the two data 5
sets. One difference from the results obtained using the “windows” data was that, when Air200 6 was included in the regression, SoilAvg became stat istically insignificant. Residential soil was 7 significant in the other variants of the model shown in Exhibit F- 18. As with the “windows” data 8 set, the road dust Pb was never a significant predictor of house dust Pb levels. Also, patterns of 9 residuals were again superior when the models we re fit to LnDustPb, rather than DustPb. The 10 results (coefficients and significance) were not significantly altered wh en regressions were 11 conducted weighted by the numbers of observati ons at each house, instead of uniformly 12 weighted. 13

14 Exhibit F-18. Summary of Regression Anal ysis Results for the “House” Data Set a,b 

## 15

Model Independent
Variable Dependent Variable(s) Estimated Values (m) Coefficient p-Value(s) Adjusted R 2



### Intercept 701.2 0.008 H1 DustPb Air200 1573.1 0.001 0.489

Intercept 2447.1 0.000 H2 DustPb LnAir200 883.4 0.000 0.609

Intercept 3313.2 0.000

SoilAvg -11.349 0.019 H3 DustPb

LnAir200 946.9 0.000 0.722

Intercept 6.3928 0.000 H4 LnDustPb Air200 1.2185 0.002 0.447

Intercept 7.7892 0.000 H5 LnDustPb LnAir200 0.7200 0.000 0.625

Intercept 8.3884 0.000

SoilAvg -0.0079 0.045 H6 LnDustPb

LnAir200 0.7639 0.000 0.701

a 

### Abbreviations: DustPb = Pb concentration in house dust; LnDustPb = log-transformed 

## 16
value; AIR_200 = ambient air co ncentration within 200 meters (m) of house dust sampling 

## 17 locations; LnAIR200 = log-transformed concentr ation; and SoilAvg = average residential soil 

## 18

Pb concentration. 

## 19

b 

### Models labeled “H” were created considering all of the data for each house dust sampling 

## 20

location. 

## 21

22 F.3.5.3 Comparison of Predicted to Observed Dust Pb Concentrations at 23 Primary Pb Smelter 24
25 In order to evaluate potential approaches for es timating house dust Pb levels at the primary Pb 26 smelter, the estimated house dust Pb concentratio ns derived using severa l of the better-fitting 27 models (as judged by adjusted R 2 

## values) were compared base d on the “windows” data (see 28 Exhibit F-19). 29

## Appendix F

ICF International F- 

## 94 DRAFT – December 2006 

## 1 Exhibit F-19. Comparison of Three Best "Windows" Models with EPA 2 AGG (Air+Soil) Model and “Windows” Data 3

0 1,000 2,000 3,000 4,000 5,000

0.0 0.5 1.0 1.5 2.0

Ambient Air Pb Concentration (μg/m 3 

### )Predicted House Dust Pb Concentration(μg/g)



### Model W4

Model W8

Model W2

AGG-Soil

"Windows" Data 

## 4 5 Exhibit F-20 shows the dust concentrations pr edicted by the three best-fitting models derived 6 using the “house” data. For models that included co efficients for residential soil Pb (all except 7 H5), the assumed residential soil Pb concentration was held constant at its mean value. In both 8 cases, the predictions are compared to thos e derived using EPA’s AGG Model (Soil+Dust) 9 model (USEPA 1989, see also Section 4.1.4). 10

## Appendix F

ICF International F- 

## 95 DRAFT – December 2006 

## 1 Exhibit F-20. Comparison of Best-Fit ting "House" Models with the EPA 2 AGG (Air+Soil) Model and the "Windows" House Dust Data 3

0 1,000 2,000 3,000 4,000 5,000

0.0 0.5 1.0 1.5 2.0

Ambient Air Pb Concentration (μg/m 3 

### )Predicted House Dust Pb Concentration(μg/g)



### Model H3

Model H6

"Windows" Data

AGG-Soil

Model H5



## 4 5
It can be seen that the models derived from th e “windows” and “house” data sets have generally 6 the same form. The relationships were highl y curved and negative hou se dust values were 7 predicted at low air concentrations, when the m odels were fit to untransformed house dust data 8 (W4, H3). For the “windows” m odels, predicted house dust Pb con centration values were very 9 similar when the model was fit using untransformed air concentrations (W2) or log-transformed 10 values (W8.) Also, predicted house dust Pb leve ls were very similar for the two log-log “house” 11
models when soil concentration was included (H6) or excluded (H6) from the model. 12

13 All of the models predicted substantially higher house dust Pb concentra tions than the EPA AGG 14 (Air + Soil) model. In additi on, the AGG model predicts house dust levels that are far below the 15
observed values. 16

17 F.3.6 Primary Pb Smelter: Selection of the House Dust Modeling Approach 18
19 The original intent in the pilot phase was to use the same house dust estimation approach across 20 all of the case studies and exposure scenarios to maintain consistency and comparability. As 21 discussed in Chapter 4, EPA’s generic AGG regr ession models (U.S. EPA 1989) were selected 22 as the primary tools for estimating house dust Pb concentrations for the secondary Pb smelter 23 and near roadway case studies. However, the availability of site-s pecific house dust and 24 residential soil concentration data from the primary Pb smelter case study location raised the 25 possibility of developing site-s pecific models as desc ribed above. The modeling approach that 26 was ultimately selected for the primary Pb smelter represents a compromise that combines the 27

## Appendix F

ICF International F- 

## 96 DRAFT – December 2006 

## site-specific and generic models based on their applicability to specific areas covered in the case 1 study. 2

3 As shown in Exhibit F-15, soil and house dust samp les from which the site-specific models were 4 developed were available only out to a distance of about 1,600 m from the f acility’s main stack. 5 Thus, using the site-specific model to predict hou se dust Pb concentrations at greater distances 6 would be subject to great uncerta inty. Thus, the decision was made to use the site-specific model 7 H6 to predict house dust Pb concen trations at centroids out to a distance of 1.5 km from the site, 8 and to use the AGG (Air + Dust) generic model to predict house dust Pb levels for the large 9 majority of the centroids at greater distances. As shown in Exhibit F-21, the H6 model predicted 10 much higher house dust concentrations at centroids closer to the facility than the AGG model, 11 but at longer distances, the predic tions (to the extent th at the comparison is valid) became more 12 similar. For centroids around 1,500 m (1.5 km ) from the facility, the average H6 model 13 predicted house dust Pb concen trations of 310 μg/g, while the average AGG (Air + Soil) 14 prediction was approximately 270 μg/g. At 5,000 m (5 km), the average predictions from the 15 two models were 120 μg/g and 80 μg/g, respectively. 16

17
Exhibit F-21. Ratio of House Dust Con centrations Predicted by the H6 and AGG 18 (Air+Soil) Models versus Distance from the Main Stack for the Primary Pb 19 Smelter Case Study Census Block Centroids 20

0.0 1.0 2.0 3.0 4.0 5.0

0 5,000 10,000 15,000

Census Block Centroid Distance from the Main Stack (m)Ratio of H6 to AGG (Air+Soil) House DustPredictions



## 21

## Appendix F

ICF International F- 

## 97 DRAFT – December 2006 

## References 1

ELM Consulting LLC. (2005) Characterization Area Investigation Report. July. 2

U.S. Environmental Protection Agency (USEPA) Region 7. (2006) Herculaneum Lead Master 3 090804 (Microsoft Access Database). Obtained from Region 7 and Updated with 2005 and 2006 4

Data. 5

U.S. Environmental Protection Agency (USEPA). (1989) Review of the National Ambient Air 6 Quality Standard for Lead: Exposure Analysis Methodology and Validation. Research Triangle 7 Park, NC: Office of Air Quality Planni ng and Standards. EPA-450/2-89-011. June. 8

9

# Appendix G

Secondary Pb Smel ter Case Study
Media Concentrations

## Appendix G

ICF International G-1 DRAFT – December 2006 

## Appendix G presents summaries of the Pb air co ncentrations and dry deposition rates obtained 1 from modeling the area around the secondary Pb smelter. Exhibit G-1 shows the ratios of 2 exposure concentrations to ambi ent air concentrations from th e National Air Toxics Assessment 3 (NATA) for the Census tracts surrounding the se condary Pb smelter f acility. Exhibit G-2 4
contains block-level summaries of modeled annual average air co ncentrations and dry deposition 5 rates for Pb; counts of population and children under seve n years of age; modeled annual average 6 exposure concentrations for the general population and children unde r four years of age; and the 7 modeled soil Pb concentrations (based on total deposition). Exhibit G-3 presents the modeled 8

indoor dust concentrations of Pb for the case study. Exhibit G-4 contains input parameters for 9 the secondary Pb smelter facility soil calcu lations. Additional disc ussion regarding these 10 modeling results is provided in Chapter 4 of the report. 11

12

## Appendix G

Tract FIPS HAPEM/ASPEN Ratios for Children Ages 0 to

4 Years

01109988900 0.46

01109989000 0.44

01109989100 0.45

01109989200 0.45 

## Exhibit G-1. Secondary Pb Smelter: Ratios of Exposure Concentrations to Ambient Air Concentrations from NATA for Study Area

ICF International G-2 DRAFT - December 2006Appendix GBlock FIPS UTMx UTMyDistancefromSource(m)Pop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual PbAir Conc.(μg/m3)ModeledAverageAnnual PbAir ExposureConc. forPopulation(μg/m3)Children Ages 0 to4 Years ModeledAverage AnnualPb Air ExposureConc. (μg/m3)TotalDeposition(g/m2/year)ModeledSoil PbConc.(mg/kg)Modeled SoilPb Conc.PlusBackground(mg/kg)Hybrid ScaledSoil Pb Conc.(mg/kg)[FromAERMODmodeling][From NATAratios][For children ages0 to 4 years, fromNATA ratios][FromAERMODmodeling][FromMPE soilmixing][From MPEsoil mixing][Scaled threetimes modeledresults]011099890003045 596945.89 3516998.82 308 8 0 0.53547 0.21315 0.23796 0.435192 367.73 382.73 1148.18011099890003046 597384.76 3517378.86 584 22 2 0.08634 0.03437 0.03837 0.040328 33.14 48.14 144.41011099890002042 597048.30 3517914.85 683 29 1 0.06387 0.02543 0.02839 0.029802 31.70 46.70 140.09011099890003042 595760.05 3517699.22 1132 64 6 0.04204 0.01673 0.01868 0.015370 12.63 27.63 82.89011099890002050 597768.32 3517688.87 1044 44 5 0.03153 0.01255 0.01401 0.011616 10.57 25.57 76.72011099890002051 597843.54 3517381.20 1039 9 0 0.03048 0.01213 0.01355 0.012110 9.95 24.95 74.85011099890002049 597868.49 3517835.95 1198 15 0 0.02569 0.01022 0.01141 0.008990 8.18 23.18 69.55011099890002041 597471.11 3518350.18 1262 8 1 0.02557 0.01018 0.01136 0.009540 10.15 25.15 75.44011099890003137 597982.25 3516826.22 1255 41 1 0.02529 0.01007 0.01124 0.012738 11.59 26.59 79.78011099890002048 597803.82 3518119.53 1304 2 0 0.02426 0.00966 0.01078 0.008204 7.61 22.61 67.82011099891003019 598086.36 3517373.43 1280 3 0 0.02114 0.00855 0.00955 0.007946 7.23 22.23 66.70011099891003011 598045.45 3517692.51 1304 8 1 0.02103 0.00850 0.00950 0.007204 6.56 21.56 64.67011099891003012 598018.66 3517884.74 1354 29 2 0.02048 0.00828 0.00925 0.006894 6.27 21.27 63.82011099891003018 598124.43 3517443.33 1325 10 0 0.02007 0.00811 0.00906 0.007288 6.63 21.63 64.90011099890002047 597778.54 3518333.95 1435 18 3 0.01990 0.00792 0.00884 0.006830 6.22 21.22 63.65011099890003139 598176.93 3516722.25 1474 18 0 0.01933 0.00770 0.00859 0.009412 8.57 23.57 70.70011099890003138 598215.10 3517052.16 1423 30 4 0.01927 0.00767 0.00856 0.007830 7.13 22.13 66.38011099890002039 597690.35 3518557.85 1556 45 3 0.01850 0.00736 0.00822 0.006386 5.81 20.81 62.44011099890002026 596955.29 3518834.09 1566 57 5 0.01823 0.00726 0.00810 0.006612 7.03 22.03 66.10011099890002023 596485.56 3518721.84 1483 257 32 0.01813 0.00722 0.00806 0.005934 6.31 21.31 63.93011099891003021 598208.76 3517356.46 1401 7 0 0.01810 0.00732 0.00817 0.006652 6.05 21.05 63.16011099890003141 598221.39 3516573.52 1576 21 0 0.01799 0.00716 0.00799 0.009078 7.46 22.46 67.38011099891003013 597960 3518349.78 1574 121 5 0.01766 0.00714 0.00797 0.005638 5.13 20.13 60.39011099890002025 596744.76 3518890.56 1617 16 2 0.01764 0.00702 0.00784 0.006264 6.66 21.66 64.99011099890002038 597786.31 3518512.40 1576 46 5 0.01742 0.00693 0.00774 0.005924 5.39 20.39 61.17011099891003010 598223.62 3517693.2 1474 44 1 0.01699 0.00687 0.00767 0.005592 5.09 20.09 60.27011099891003009 598271.58 3517538.46 1485 25 2 0.01672 0.00676 0.00755 0.005692 5.18 20.18 60.54011099890002024 596571.02 3518877.84 1621 54 14 0.01661 0.00661 0.00738 0.005452 5.80 20.80 62.40011099890002033 597585.35 3518738.26 1656 7 0 0.01655 0.00659 0.00736 0.005632 5.13 20.13 60.38011099890002032 597527.66 3518740.73 1632 15 0 0.01642 0.00654 0.00730 0.005704 5.19 20.19 60.57011099890002036 597702.68 3518709.13 1689 24 3 0.01642 0.00653 0.00730 0.005518 5.02 20.02 60.07011099890002031 597436.39 3518744.91 1598 17 0 0.01621 0.00645 0.00720 0.005820 5.30 20.30 60.89[From 2000U.S. Census][Centroid coordinates inNAD83]Exhibit G-2. Secondary Pb Smelter: Current Conditions Scenario Media ConcentrationsICF International G-3 DRAFT - December 2006Appendix GBlock FIPS UTMx UTMyDistancefromSource(m)Pop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual PbAir Conc.(μg/m3)ModeledAverageAnnual PbAir ExposureConc. forPopulation(μg/m3)Children Ages 0 to4 Years ModeledAverage AnnualPb Air ExposureConc. (μg/m3)TotalDeposition(g/m2/year)ModeledSoil PbConc.(mg/kg)Modeled SoilPb Conc.PlusBackground(mg/kg)Hybrid ScaledSoil Pb Conc.(mg/kg)[FromAERMODmodeling][From NATAratios][For children ages0 to 4 years, fromNATA ratios][FromAERMODmodeling][FromMPE soilmixing][From MPEsoil mixing][Scaled threetimes modeledresults][From 2000U.S. Census][Centroid coordinates inNAD83]Exhibit G-2. Secondary Pb Smelter: Current Conditions Scenario Media Concentrations011099891003022 598350.04 3517255.01 1540 13 1 0.01551 0.00627 0.00700 0.005678 5.17 20.17 60.50011099890002037 597812.91 3518703.13 1745 21 1 0.01535 0.00611 0.00682 0.005070 4.61 19.61 58.84011099891003023 598433.21 3517108.67 1632 13 4 0.01506 0.00609 0.00680 0.005588 5.09 20.09 60.26011099891002021 597707.54 3518832.13 1797 8 0 0.01493 0.00604 0.00674 0.004892 4.45 19.45 58.36011099890003140 598413.07 3516694.27 1705 56 5 0.01493 0.00594 0.00664 0.006740 6.13 21.13 63.40011099890002027 596966.10 3519056.91 1789 104 9 0.01486 0.00592 0.00660 0.005164 4.70 19.70 59.10011099891003014 598030.8 3518507.67 1735 18 0 0.01474 0.00596 0.00666 0.004618 4.20 19.20 57.61011099890003094 597006.49 3515773.92 1514 21 1 0.01454 0.00579 0.00646 0.006922 5.69 20.69 62.06011099890003102 595847.65 3516333.48 1346 2 0 0.01430 0.00569 0.00636 0.005202 5.59 20.59 61.77011099891003015 597967.8 3518615.91 1772 22 0 0.01419 0.00573 0.00641 0.004542 4.13 19.13 57.40011099891002018 597832.35 3518830.29 1861 37 5 0.01408 0.00569 0.00636 0.004558 4.15 19.15 57.44011099891003025 598501.53 3517165.76 1695 44 9 0.01373 0.00555 0.00620 0.004932 4.05 19.05 57.16011099890002029 597445.00 3518926.39 1769 7 1 0.01363 0.00543 0.00606 0.004772 4.34 19.34 58.03011099890002028 597241.29 3518988.96 1767 23 4 0.01359 0.00541 0.00604 0.004760 5.06 20.06 60.19011099891002019 597753.76 3518949.47 1922 27 2 0.01348 0.00545 0.00609 0.004304 3.92 18.92 56.75011099891003008 598472.09 3517364.01 1664 117 7 0.01344 0.00543 0.00607 0.004666 3.83 18.83 56.50011099890002018 596922.55 3519203.64 1932 64 4 0.01341 0.00534 0.00596 0.004562 4.15 19.15 57.46011099890002019 596660.95 3519199.16 1930 14 2 0.01337 0.00532 0.00594 0.004330 3.94 18.94 56.82011099891003016 597977 3518733.91 1868 62 5 0.01319 0.00533 0.00596 0.004204 3.83 18.83 56.48011099890003087 597698.07 3515929.61 1612 31 3 0.01303 0.00519 0.00579 0.007136 6.49 21.49 64.48011099890003093 597133.93 3515772.10 1537 41 4 0.01302 0.00518 0.00579 0.006388 5.25 20.25 60.75011099890002020 596587.72 3519207.54 1945 8 0 0.01284 0.00511 0.00571 0.004030 3.67 18.67 56.00011099890002015 596849.94 3519327.92 2053 30 1 0.01237 0.00492 0.00550 0.004138 4.40 19.40 58.20011099891003017 598120.29 3518690.94 1929 81 0 0.01236 0.00500 0.00558 0.003756 3.42 18.42 55.26011099891002020 597662.52 3519041.32 1961 14 2 0.01230 0.00497 0.00555 0.003984 3.63 18.63 55.88011099890002022 596491.38 3519202.61 1954 20 4 0.01227 0.00488 0.00545 0.003712 3.38 18.38 55.13011099890003092 597245.86 3515771.14 1566 25 0 0.01191 0.00474 0.00529 0.005954 4.89 19.89 59.68011099891002010 597702.3 3519112.25 2042 3 0 0.01159 0.00469 0.00523 0.003686 3.35 18.35 55.06011099890003083 598193.76 3515950.45 1916 18 5 0.01153 0.00459 0.00512 0.006048 5.50 20.50 61.51011099891002013 597942.66 3519087.32 2137 63 1 0.01152 0.00466 0.00520 0.003530 3.21 18.21 54.64011099890003090 597503.32 3515766.52 1660 18 0 0.01149 0.00457 0.00511 0.005880 5.35 20.35 61.05011099890003088 597628.12 3515769.72 1713 13 2 0.01145 0.00456 0.00509 0.005960 5.42 20.42 61.27ICF International G-4 DRAFT - December 2006Appendix GBlock FIPS UTMx UTMyDistancefromSource(m)Pop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual PbAir Conc.(μg/m3)ModeledAverageAnnual PbAir ExposureConc. forPopulation(μg/m3)Children Ages 0 to4 Years ModeledAverage AnnualPb Air ExposureConc. (μg/m3)TotalDeposition(g/m2/year)ModeledSoil PbConc.(mg/kg)Modeled SoilPb Conc.PlusBackground(mg/kg)Hybrid ScaledSoil Pb Conc.(mg/kg)[FromAERMODmodeling][From NATAratios][For children ages0 to 4 years, fromNATA ratios][FromAERMODmodeling][FromMPE soilmixing][From MPEsoil mixing][Scaled threetimes modeledresults][From 2000U.S. Census][Centroid coordinates inNAD83]Exhibit G-2. Secondary Pb Smelter: Current Conditions Scenario Media Concentrations011099890003091 597367.28 3515768.25 1606 11 0 0.01141 0.00454 0.00507 0.005750 4.72 19.72 59.17011099890003086 597976.45 3515896.98 1805 29 1 0.01141 0.00454 0.00507 0.006062 4.98 19.98 59.94011099891003005 598664.77 3517648.04 1892 38 2 0.01127 0.00455 0.00509 0.003472 3.16 18.16 54.48011099891002017 598120.31 3518869.32 2064 15 1 0.01127 0.00455 0.00509 0.003420 3.11 18.11 54.34011099890001035 596510.45 3519371.09 2117 16 3 0.01103 0.00439 0.00490 0.003276 2.98 17.98 53.94011099890002030 597470.02 3519192.68 2028 6 0 0.01100 0.00438 0.00489 0.003708 3.44 18.44 55.31011099891001017 598560.9 3518427.07 2096 164 1 0.01094 0.00442 0.00494 0.003038 2.82 17.82 53.45011099891002011 597815.68 3519226.2 2195 32 1 0.01072 0.00433 0.00484 0.003276 2.98 17.98 53.94011099891003000 598659.21 3517958.38 1971 141 10 0.01071 0.00433 0.00484 0.003098 2.55 17.55 52.64011099891002012 597978.43 3519216.66 2266 42 4 0.01065 0.00430 0.00481 0.003176 2.89 17.89 53.67011099890003089 597850.22 3515772.83 1827 52 6 0.01062 0.00423 0.00472 0.005574 4.58 19.58 58.74011099891002007 597676.46 3519204.72 2115 23 1 0.01062 0.00429 0.00479 0.003380 3.13 18.13 54.40011099891003004 598724.81 3517760.48 1975 31 3 0.01042 0.00421 0.00471 0.003090 2.81 17.81 53.44011099890002011 597427.96 3519271.90 2090 5 0 0.01041 0.00414 0.00463 0.003498 3.24 18.24 54.73011099891002014 598121.13 3519053.75 2210 64 8 0.01037 0.00419 0.00468 0.003120 2.89 17.89 53.68011099891001012 598628.30 3518579.90 2238 19 0 0.01020 0.00412 0.00461 0.002770 2.57 17.57 52.70011099890002017 596258.29 3519370.74 2167 32 4 0.00985 0.00392 0.00438 0.002760 2.51 17.51 52.54011099890003082 598196.97 3515794.27 2029 31 3 0.00985 0.00392 0.00438 0.005036 4.58 19.58 58.75011099891003006 598821.73 3517527.6 2028 76 6 0.00984 0.00398 0.00444 0.003106 2.83 17.83 53.48011099890001026 596399.12 3519496.02 2259 71 7 0.00976 0.00388 0.00434 0.002732 2.49 17.49 52.46011099890003085 598338.13 3515797.63 2126 24 4 0.00965 0.00384 0.00429 0.004876 5.19 20.19 60.56011099891003028 598944.83 3517078.3 2144 34 3 0.00959 0.00388 0.00433 0.003196 2.91 17.91 53.73011099890001025 596273.89 3519451.51 2242 24 2 0.00954 0.00380 0.00424 0.002618 2.38 17.38 52.15011099891003027 599010.47 3516967.06 2222 5 0 0.00938 0.00379 0.00423 0.003198 2.91 17.91 53.73011099891002002 597966.97 3519426.17 2443 52 3 0.00936 0.00378 0.00423 0.002722 2.90 17.90 53.69011099891001011 598724.37 3518703.77 2389 294 0 0.00934 0.00378 0.00422 0.002474 2.29 17.29 51.88011099891002015 598266.09 3519105.52 2339 250 8 0.00934 0.00378 0.00422 0.002712 2.47 17.47 52.40011099891003003 598922.01 3517661.59 2147 54 1 0.00920 0.00372 0.00415 0.002736 2.49 17.49 52.47011099890001027 596886.13 3519780.76 2507 34 4 0.00917 0.00365 0.00407 0.002848 2.59 17.59 52.78011099891001001 598410.93 3518988.99 2345 292 0 0.00911 0.00368 0.00411 0.002532 2.69 17.69 53.08011099890003040 595439.63 3518836.04 2077 155 36 0.00904 0.00360 0.00402 0.002638 2.22 17.22 51.67011099891002003 597771.62 3519425.32 2356 80 5 0.00898 0.00363 0.00405 0.002736 2.49 17.49 52.47ICF International G-5 DRAFT - December 2006Appendix GBlock FIPS UTMx UTMyDistancefromSource(m)Pop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual PbAir Conc.(μg/m3)ModeledAverageAnnual PbAir ExposureConc. forPopulation(μg/m3)Children Ages 0 to4 Years ModeledAverage AnnualPb Air ExposureConc. (μg/m3)TotalDeposition(g/m2/year)ModeledSoil PbConc.(mg/kg)Modeled SoilPb Conc.PlusBackground(mg/kg)Hybrid ScaledSoil Pb Conc.(mg/kg)[FromAERMODmodeling][From NATAratios][For children ages0 to 4 years, fromNATA ratios][FromAERMODmodeling][FromMPE soilmixing][From MPEsoil mixing][Scaled threetimes modeledresults][From 2000U.S. Census][Centroid coordinates inNAD83]Exhibit G-2. Secondary Pb Smelter: Current Conditions Scenario Media Concentrations011099890003142 598996.19 3516571.87 2296 50 2 0.00893 0.00355 0.00397 0.003564 3.24 18.24 54.73011099890003146 599021.84 3516500.56 2343 17 0 0.00888 0.00353 0.00394 0.003562 3.24 18.24 54.73011099891003007 598942.14 3517448.13 2139 77 2 0.00885 0.00358 0.00400 0.002786 2.54 17.54 52.61011099891002016 598284.79 3519219.58 2441 42 4 0.00884 0.00357 0.00399 0.002544 2.32 17.32 51.95011099890003143 599004.75 3516666.69 2277 45 1 0.00882 0.00351 0.00392 0.003444 3.13 18.13 54.40011099891002005 597566.01 3519507.02 2357 2 0 0.00876 0.00354 0.00395 0.002804 2.60 17.60 52.80011099890001033 597095.25 3519780.71 2522 6 0 0.00873 0.00347 0.00388 0.002630 2.44 17.44 52.31011099891003029 599049.83 3517170.01 2242 6 0 0.00852 0.00344 0.00385 0.002730 2.48 17.48 52.45011099891004068 599144.26 3516839.35 2375 51 9 0.00847 0.00342 0.00382 0.002952 2.69 17.69 53.06011099890002000 597462.88 3519582.63 2398 3 0 0.00845 0.00336 0.00376 0.002676 2.48 17.48 52.44011099890001028 596883.04 3519925.85 2652 31 0 0.00843 0.00336 0.00375 0.002566 2.34 17.34 52.01011099890001029 596627.46 3519924.45 2656 44 10 0.00841 0.00335 0.00374 0.002434 2.22 17.22 51.65011099891001008 598865.31 3518904.66 2623 31 0 0.00821 0.00332 0.00371 0.002104 1.95 16.95 50.85011099889002041 597457.96 3519648.09 2460 4 0 0.00816 0.00325 0.00379 0.002540 2.35 17.35 52.06011099890003145 599120.34 3516551.90 2421 10 0 0.00814 0.00324 0.00362 0.003180 2.89 17.89 53.68011099891002001 598350.5 3519368.36 2599 191 32 0.00808 0.00327 0.00365 0.002276 2.42 17.42 52.26011099890003144 599126.46 3516631.58 2404 46 3 0.00808 0.00322 0.00359 0.003098 2.82 17.82 53.46011099890001023 596190.71 3519695.62 2499 228 16 0.00802 0.00319 0.00356 0.002114 2.25 17.25 51.75011099890001032 597135.18 3519927.22 2672 34 3 0.00800 0.00318 0.00355 0.002334 2.12 17.12 51.37011099889002040 597522.37 3519661.80 2491 9 0 0.00799 0.00318 0.00371 0.002514 2.33 17.33 51.99011099889002025 598257.30 3519665.77 2795 33 0 0.00786 0.00313 0.00365 0.002134 1.94 16.94 50.83011099891004060 599246.44 3517045.93 2447 20 3 0.00781 0.00316 0.00353 0.002472 2.03 17.03 51.09011099890001030 597061.90 3520032.35 2769 9 0 0.00777 0.00309 0.00345 0.002264 2.06 17.06 51.18011099889002029 597704.27 3519719.96 2603 11 2 0.00760 0.00303 0.00353 0.002306 2.10 17.10 51.30011099891003002 599135.54 3518103.04 2469 11 0 0.00748 0.00302 0.00338 0.001962 1.79 16.79 50.36011099889002026 598004.48 3519734.91 2735 74 15 0.00747 0.00298 0.00347 0.002104 1.91 16.91 50.74011099891003001 599132.82 3518206.82 2503 26 3 0.00747 0.00302 0.00337 0.001942 1.77 16.77 50.30011099889002024 598294.82 3519792.10 2922 12 0 0.00743 0.00296 0.00345 0.001974 1.80 16.80 50.39011099890001031 597209.03 3520034.74 2788 14 1 0.00738 0.00294 0.00328 0.002090 1.94 16.94 50.81011099890003107 593330.77 3516868.67 3503 61 5 0.00736 0.00293 0.00327 0.002068 1.64 16.64 49.92011099890001024 596128.51 3519812.95 2628 8 3 0.00731 0.00291 0.00325 0.001896 1.73 16.73 50.18011099889002032 597653.20 3519841.42 2701 23 0 0.00715 0.00285 0.00332 0.002176 1.98 16.98 50.94ICF International G-6 DRAFT - December 2006Appendix GBlock FIPS UTMx UTMyDistancefromSource(m)Pop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual PbAir Conc.(μg/m3)ModeledAverageAnnual PbAir ExposureConc. forPopulation(μg/m3)Children Ages 0 to4 Years ModeledAverage AnnualPb Air ExposureConc. (μg/m3)TotalDeposition(g/m2/year)ModeledSoil PbConc.(mg/kg)Modeled SoilPb Conc.PlusBackground(mg/kg)Hybrid ScaledSoil Pb Conc.(mg/kg)[FromAERMODmodeling][From NATAratios][For children ages0 to 4 years, fromNATA ratios][FromAERMODmodeling][FromMPE soilmixing][From MPEsoil mixing][Scaled threetimes modeledresults][From 2000U.S. Census][Centroid coordinates inNAD83]Exhibit G-2. Secondary Pb Smelter: Current Conditions Scenario Media Concentrations011099891001016 599135.79 3518344.92 2560 16 1 0.00710 0.00287 0.00320 0.001866 1.70 16.70 50.09011099889002023 598381.30 3519837.27 3006 39 7 0.00704 0.00281 0.00327 0.001852 1.69 16.69 50.06011099890001015 597064.02 3520263.15 2999 88 8 0.00695 0.00276 0.00309 0.001960 2.08 17.08 51.25011099891004050 599353.15 3517762.49 2589 48 7 0.00692 0.00280 0.00312 0.001896 1.73 16.73 50.18011099891004062 599480.43 3516794.22 2713 3 0 0.00689 0.00279 0.00311 0.002274 2.07 17.07 51.21011099889002022 598252.84 3519951.94 3041 40 1 0.00687 0.00274 0.00319 0.001816 1.93 16.93 50.79011099889002044 598500.90 3519660.04 2924 79 0 0.00685 0.00273 0.00318 0.001842 1.68 16.68 50.03011099890003048 597275.95 3515045.82 2277 527 55 0.00680 0.00271 0.00302 0.002880 2.62 17.62 52.86011099891004047 599350.24 3517885.41 2613 47 6 0.00675 0.00273 0.00305 0.001788 1.63 16.63 49.88011099889002030 597752.93 3519943.15 2830 64 5 0.00672 0.00268 0.00312 0.001984 2.11 17.11 51.33011099889002009 597367.58 3520104.77 2884 4 0 0.00660 0.00263 0.00307 0.001850 1.71 16.71 50.14011099890001016 596613.16 3520439.30 3170 19 0 0.00655 0.00261 0.00291 0.001780 1.62 16.62 49.86011099891001002 599225.35 3519054.26 3000 312 0 0.00653 0.00264 0.00295 0.001578 1.44 16.44 49.31011099889002011 597548.07 3520037.95 2860 8 3 0.00653 0.00260 0.00303 0.001906 2.03 17.03 51.08011099889002021 598047.13 3519955.02 2952 29 5 0.00649 0.00259 0.00302 0.001780 1.89 16.89 50.68011099890001022 595977.48 3519858.91 2715 10 0 0.00649 0.00258 0.00289 0.001722 1.57 16.57 49.70011099891004046 599354.28 3518002.36 2646 35 2 0.00648 0.00262 0.00293 0.001680 1.53 16.53 49.59011099891004042 599367.76 3518211.1 2724 28 0 0.00647 0.00261 0.00292 0.001626 1.48 16.48 49.44011099891004043 599349.93 3518096.04 2669 31 1 0.00646 0.00261 0.00292 0.001650 1.50 16.50 49.51011099890003081 598224.73 3515230.17 2487 3 0 0.00642 0.00256 0.00285 0.002980 2.71 17.71 53.14011099891004035 599366.18 3518374.35 2783 21 0 0.00635 0.00257 0.00287 0.001590 1.45 16.45 49.34011099890001011 596613.05 3520542.09 3273 46 3 0.00628 0.00250 0.00279 0.001684 1.53 16.53 49.60011099890001014 597122.15 3520486.42 3227 10 0 0.00624 0.00248 0.00277 0.001690 1.54 16.54 49.61011099890003106 594383.20 3516250.42 2634 1 0 0.00621 0.00247 0.00276 0.001974 1.67 16.67 50.00011099889001010 598557.37 3519963.93 3207 86 6 0.00620 0.00247 0.00288 0.001592 1.34 16.34 49.02011099889002031 597709.75 3520139.26 3002 15 1 0.00612 0.00244 0.00284 0.001792 1.91 16.91 50.72011099890001012 597089.72 3520549.61 3287 57 5 0.00611 0.00243 0.00271 0.001656 1.51 16.51 49.52011099891004059 599564.47 3517184.04 2756 89 6 0.00604 0.00244 0.00273 0.001776 1.62 16.62 49.85011099890001021 595848.74 3519913.14 2808 20 0 0.00604 0.00240 0.00268 0.001594 1.45 16.45 49.35011099891004051 599517.48 3517414.37 2711 31 4 0.00603 0.00244 0.00272 0.001744 1.43 16.43 49.30011099891004034 599377.94 3518493.38 2842 32 1 0.00601 0.00243 0.00271 0.001522 1.39 16.39 49.16011099889002018 598262.01 3520163.67 3233 5 0 0.00600 0.00239 0.00279 0.001566 1.67 16.67 50.00ICF International G-7 DRAFT - December 2006Appendix GBlock FIPS UTMx UTMyDistancefromSource(m)Pop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual PbAir Conc.(μg/m3)ModeledAverageAnnual PbAir ExposureConc. forPopulation(μg/m3)Children Ages 0 to4 Years ModeledAverage AnnualPb Air ExposureConc. (μg/m3)TotalDeposition(g/m2/year)ModeledSoil PbConc.(mg/kg)Modeled SoilPb Conc.PlusBackground(mg/kg)Hybrid ScaledSoil Pb Conc.(mg/kg)[FromAERMODmodeling][From NATAratios][For children ages0 to 4 years, fromNATA ratios][FromAERMODmodeling][FromMPE soilmixing][From MPEsoil mixing][Scaled threetimes modeledresults][From 2000U.S. Census][Centroid coordinates inNAD83]Exhibit G-2. Secondary Pb Smelter: Current Conditions Scenario Media Concentrations011099890001006 596615.34 3520665.07 3396 33 5 0.00598 0.00238 0.00266 0.001584 1.44 16.44 49.32011099891004049 599613.03 3517770.04 2846 32 6 0.00596 0.00241 0.00269 0.001592 1.45 16.45 49.35011099890001007 596852.79 3520671.33 3397 22 0 0.00594 0.00236 0.00264 0.001632 1.49 16.49 49.46011099891004048 599605.81 3517893.93 2863 27 2 0.00593 0.00240 0.00268 0.001536 1.40 16.40 49.19011099891004041 599583.29 3517640.76 2797 126 9 0.00589 0.00238 0.00266 0.001640 1.35 16.35 49.04011099891004052 599577.42 3517268.82 2767 29 2 0.00588 0.00238 0.00265 0.001706 1.55 16.55 49.66011099890003035 592970.38 3518647.16 4077 6 0 0.00587 0.00234 0.00261 0.001386 1.45 16.45 49.34011099890003077 598131.63 3514970.28 2657 10 1 0.00584 0.00232 0.00260 0.002578 2.35 17.35 52.04011099890001018 595963.05 3520113.74 2962 17 1 0.00582 0.00232 0.00259 0.001478 1.35 16.35 49.04011099890003080 599785.06 3516094.74 3201 480 18 0.00582 0.00232 0.00259 0.002084 1.65 16.65 49.96011099890001008 597014.49 3520678.90 3410 16 2 0.00582 0.00232 0.00258 0.001578 1.44 16.44 49.31011099889002008 597464.37 3520333.45 3128 1 0 0.00579 0.00231 0.00269 0.001572 1.46 16.46 49.37011099889002012 597695.67 3520263.08 3117 33 2 0.00577 0.00230 0.00268 0.001658 1.76 16.76 50.29011099889002014 597842.18 3520240.29 3140 35 1 0.00577 0.00230 0.00268 0.001640 1.74 16.74 50.23011099889001011 598606.99 3520263.72 3487 122 20 0.00573 0.00229 0.00266 0.001412 1.50 16.50 49.51011099891004045 599596.11 3518006.71 2881 23 2 0.00573 0.00232 0.00259 0.001446 1.32 16.32 48.95011099890001020 595850.13 3520041.14 2928 17 1 0.00569 0.00227 0.00253 0.001482 1.35 16.35 49.05011099889002019 598078.37 3520199.20 3187 18 1 0.00569 0.00227 0.00264 0.001516 1.61 16.61 49.84011099889002015 597936.83 3520241.19 3173 48 8 0.00568 0.00226 0.00264 0.001572 1.67 16.67 50.02011099890003036 594040.37 3519476.20 3538 37 2 0.00565 0.00225 0.00251 0.001226 1.12 16.12 48.35011099890003109 594584.92 3516126.30 2504 4 1 0.00563 0.00224 0.00250 0.001798 1.93 16.93 50.80011099890001009 597197.78 3520679.62 3427 31 8 0.00563 0.00224 0.00250 0.001476 1.34 16.34 49.03011099889001009 598817.78 3519911.00 3314 39 2 0.00562 0.00224 0.00261 0.001410 1.04 16.04 48.13011099890003078 598274.46 3514980.72 2722 19 2 0.00562 0.00224 0.00250 0.002498 2.27 17.27 51.82011099891004044 599587.38 3518108.41 2900 5 0 0.00562 0.00227 0.00254 0.001390 1.27 16.27 48.80011099889002017 598225.40 3520302.39 3342 8 2 0.00545 0.00217 0.00253 0.001410 1.50 16.50 49.50011099889002013 597757.28 3520390.65 3256 3 0 0.00544 0.00217 0.00253 0.001538 1.64 16.64 49.91011099889002020 598078.26 3520300.99 3281 32 1 0.00543 0.00216 0.00252 0.001436 1.53 16.53 49.58011099890001010 597197.61 3520788.46 3535 30 1 0.00542 0.00216 0.00241 0.001400 1.27 16.27 48.82011099891004033 599702.96 3518439.08 3118 34 2 0.00540 0.00218 0.00244 0.001274 1.16 16.16 48.48011099890003058 598260.10 3514861.66 2815 16 1 0.00538 0.00214 0.00239 0.002330 2.12 17.12 51.36011099891004036 599696.59 3518296.92 3062 45 8 0.00536 0.00216 0.00242 0.001282 1.17 16.17 48.50ICF International G-8 DRAFT - December 2006Appendix GBlock FIPS UTMx UTMyDistancefromSource(m)Pop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual PbAir Conc.(μg/m3)ModeledAverageAnnual PbAir ExposureConc. forPopulation(μg/m3)Children Ages 0 to4 Years ModeledAverage AnnualPb Air ExposureConc. (μg/m3)TotalDeposition(g/m2/year)ModeledSoil PbConc.(mg/kg)Modeled SoilPb Conc.PlusBackground(mg/kg)Hybrid ScaledSoil Pb Conc.(mg/kg)[FromAERMODmodeling][From NATAratios][For children ages0 to 4 years, fromNATA ratios][FromAERMODmodeling][FromMPE soilmixing][From MPEsoil mixing][Scaled threetimes modeledresults][From 2000U.S. Census][Centroid coordinates inNAD83]Exhibit G-2. Secondary Pb Smelter: Current Conditions Scenario Media Concentrations011099890001013 597385.70 3520645.12 3419 53 2 0.00533 0.00212 0.00237 0.001364 1.24 16.24 48.72011099889001007 598693.90 3520443.94 3687 138 32 0.00532 0.00212 0.00247 0.001274 1.36 16.36 49.07011099890003059 598247.49 3514829.29 2837 6 0 0.00532 0.00212 0.00236 0.002288 2.08 17.08 51.25011099889002004 597749.70 3520464.15 3325 2 0 0.00528 0.00211 0.00245 0.001470 1.56 16.56 49.69011099889002007 597586.65 3520506.94 3324 17 1 0.00525 0.00209 0.00244 0.001410 1.50 16.50 49.50011099889002003 597843.53 3520460.00 3348 13 0 0.00525 0.00209 0.00244 0.001466 1.56 16.56 49.68011099889002002 597936.43 3520463.91 3382 9 0 0.00518 0.00207 0.00241 0.001424 1.51 16.51 49.54011099889002016 598121.19 3520401.17 3390 32 2 0.00517 0.00206 0.00240 0.001346 1.43 16.43 49.29011099890003079 598848.60 3514996.29 3058 30 5 0.00513 0.00204 0.00228 0.002166 1.78 16.78 50.34011099890003056 598131.34 3514730.43 2867 21 2 0.00503 0.00200 0.00223 0.002110 1.92 16.92 50.76011099890001002 596175.22 3520800.01 3582 370 26 0.00502 0.00200 0.00223 0.001138 1.21 16.21 48.63011099889002006 597632.14 3520610.17 3435 21 4 0.00501 0.00200 0.00233 0.001332 1.21 16.21 48.64011099889003050 597533.52 3520664.66 3466 30 0 0.00499 0.00199 0.00232 0.001292 1.18 16.18 48.53011099890003060 598295.14 3514708.81 2965 22 4 0.00498 0.00198 0.00221 0.002096 1.91 16.91 50.72011099891004040 599963.79 3517992.13 3234 11 0 0.00494 0.00200 0.00223 0.001214 1.10 16.10 48.31011099890003055 597902.92 3514756.47 2745 20 4 0.00492 0.00196 0.00219 0.002008 1.65 16.65 49.95011099889001005 598110.45 3520535.10 3510 61 8 0.00491 0.00196 0.00228 0.001276 1.36 16.36 49.07011099889002001 597892.80 3520617.69 3514 29 2 0.00490 0.00195 0.00228 0.001340 1.43 16.43 49.28011099890003037 594081.71 3519661.00 3624 42 7 0.00482 0.00192 0.00214 0.001078 1.00 16.00 48.00011099889001015 599751.71 3519624.72 3765 16 0 0.00481 0.00192 0.00224 0.001056 0.89 15.89 47.67011099889003048 597541.16 3520766.52 3567 4 0 0.00480 0.00191 0.00223 0.001224 1.30 16.30 48.91011099890001000 597097.55 3521178.54 3914 90 13 0.00479 0.00191 0.00213 0.001208 1.10 16.10 48.30011099890003026 594907.94 3519747.20 3119 12 0 0.00472 0.00188 0.00210 0.001174 1.07 16.07 48.21011099889002000 597803.81 3520745.84 3610 73 7 0.00469 0.00187 0.00218 0.001258 1.14 16.14 48.43011099890001019 595621.60 3520370.57 3316 33 1 0.00469 0.00187 0.00209 0.001160 1.18 16.18 48.54011099890003054 597901.91 3514680.88 2815 10 1 0.00468 0.00186 0.00208 0.001874 1.54 16.54 49.62011099891004057 600129.25 3517883.89 3375 65 4 0.00465 0.00188 0.00210 0.001154 1.05 16.05 48.15011099889001004 598472.90 3520696.79 3804 342 60 0.00464 0.00185 0.00216 0.001134 1.21 16.21 48.62011099890003053 597797.77 3514676.87 2780 14 2 0.00460 0.00183 0.00204 0.001828 1.50 16.50 49.51011099890003024 595096.85 3519978.72 3201 20 0 0.00460 0.00183 0.00204 0.001074 0.98 15.98 47.93011099890001037 595839.10 3520670.90 3532 7 0 0.00455 0.00181 0.00202 0.001066 1.13 16.13 48.40011099891004058 600131.15 3517777.08 3359 66 6 0.00453 0.00183 0.00205 0.001152 1.23 16.23 48.68ICF International G-9 DRAFT - December 2006Appendix GBlock FIPS UTMx UTMyDistancefromSource(m)Pop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual PbAir Conc.(μg/m3)ModeledAverageAnnual PbAir ExposureConc. forPopulation(μg/m3)Children Ages 0 to4 Years ModeledAverage AnnualPb Air ExposureConc. (μg/m3)TotalDeposition(g/m2/year)ModeledSoil PbConc.(mg/kg)Modeled SoilPb Conc.PlusBackground(mg/kg)Hybrid ScaledSoil Pb Conc.(mg/kg)[FromAERMODmodeling][From NATAratios][For children ages0 to 4 years, fromNATA ratios][FromAERMODmodeling][FromMPE soilmixing][From MPEsoil mixing][Scaled threetimes modeledresults][From 2000U.S. Census][Centroid coordinates inNAD83]Exhibit G-2. Secondary Pb Smelter: Current Conditions Scenario Media Concentrations011099890001001 596827.83 3521402.75 4128 15 1 0.00453 0.00180 0.00201 0.001144 1.04 16.04 48.12011099891004031 599923.8 3518742.55 3442 166 16 0.00451 0.00182 0.00204 0.001058 1.13 16.13 48.38011099891004039 600206.51 3517993.48 3472 30 2 0.00449 0.00182 0.00203 0.001084 0.99 15.99 47.96011099891004038 600169.3 3518101.96 3460 36 1 0.00442 0.00179 0.00200 0.001042 0.95 15.95 47.84011099891004037 600087.47 3518196.91 3405 54 6 0.00440 0.00178 0.00199 0.001026 0.93 15.93 47.80011099890003099 596453.64 3513948.68 3345 1 0 0.00435 0.00173 0.00193 0.001306 1.21 16.21 48.63011099890003114 594675.75 3515611.15 2706 156 8 0.00434 0.00173 0.00193 0.001284 1.06 16.06 48.17011099889001012 599607.51 3520029.47 3926 49 3 0.00430 0.00171 0.00200 0.000950 0.86 15.86 47.59011099889001013 599759.86 3520026.91 4034 42 5 0.00428 0.00171 0.00199 0.000930 0.85 15.85 47.54011099890003064 597995.63 3514514.48 3004 19 1 0.00428 0.00170 0.00190 0.001668 1.52 16.52 49.55011099890003065 597934.51 3514512.89 2982 21 3 0.00424 0.00169 0.00188 0.001638 1.35 16.35 49.04011099889003042 597820.14 3521019.10 3878 26 3 0.00423 0.00169 0.00197 0.001084 1.15 16.15 48.46011099890003073 597434.52 3514210.86 3127 10 2 0.00422 0.00168 0.00187 0.001558 1.64 16.64 49.92011099890003068 597548.63 3514344.96 3022 57 10 0.00421 0.00168 0.00187 0.001604 1.69 16.69 50.06011099890001003 595948.23 3521241.32 4059 19 2 0.00419 0.00167 0.00186 0.000880 0.80 15.80 47.40011099890001005 596551.88 3521650.09 4383 3 1 0.00419 0.00167 0.00186 0.000996 1.06 16.06 48.18011099889003043 597452.36 3521329.04 4105 176 22 0.00417 0.00166 0.00194 0.000980 1.00 16.00 47.99011099889003044 596891.98 3521626.08 4352 12 3 0.00417 0.00166 0.00194 0.001028 0.94 15.94 47.81011099890003072 597362.79 3514146.69 3177 28 1 0.00416 0.00166 0.00185 0.001522 1.60 16.60 49.81011099890003061 598269.80 3514386.08 3237 101 16 0.00413 0.00165 0.00184 0.001634 1.74 16.74 50.21011099890003069 597548.51 3514266.35 3098 27 2 0.00409 0.00163 0.00182 0.001536 1.62 16.62 49.85011099890003052 597799.70 3514473.31 2971 21 1 0.00407 0.00162 0.00181 0.001564 1.29 16.29 48.86011099889003041 598032.51 3521127.95 4042 37 7 0.00402 0.00160 0.00187 0.001042 1.11 16.11 48.32011099890003030 591974.96 3519759.86 5436 14 0 0.00398 0.00158 0.00177 0.000792 0.85 15.85 47.55011099890003066 597746.84 3514418.39 3006 3 1 0.00397 0.00158 0.00176 0.001526 1.25 16.25 48.76011099890003128 590548.11 3517022.20 6267 54 6 0.00396 0.00158 0.00176 0.000808 0.86 15.86 47.58011099889001002 599394.18 3520643.17 4245 85 4 0.00394 0.00157 0.00183 0.000880 0.92 15.92 47.76011099890003063 598066.89 3514354.92 3179 20 0 0.00394 0.00157 0.00175 0.001496 1.23 16.23 48.69011099891004054 600376.41 3517606.13 3582 50 5 0.00394 0.00159 0.00178 0.001012 0.83 15.83 47.49011099889001014 599802.78 3520215.79 4196 33 3 0.00391 0.00156 0.00182 0.000840 0.89 15.89 47.68011099890003120 596387.43 3513662.86 3637 13 0 0.00387 0.00154 0.00172 0.001106 1.19 16.19 48.57011099890003071 597586.60 3514153.84 3216 31 4 0.00386 0.00154 0.00171 0.001428 1.50 16.50 49.51ICF International G-10 DRAFT - December 2006Appendix GBlock FIPS UTMx UTMyDistancefromSource(m)Pop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual PbAir Conc.(μg/m3)ModeledAverageAnnual PbAir ExposureConc. forPopulation(μg/m3)Children Ages 0 to4 Years ModeledAverage AnnualPb Air ExposureConc. (μg/m3)TotalDeposition(g/m2/year)ModeledSoil PbConc.(mg/kg)Modeled SoilPb Conc.PlusBackground(mg/kg)Hybrid ScaledSoil Pb Conc.(mg/kg)[FromAERMODmodeling][From NATAratios][For children ages0 to 4 years, fromNATA ratios][FromAERMODmodeling][FromMPE soilmixing][From MPEsoil mixing][Scaled threetimes modeledresults][From 2000U.S. Census][Centroid coordinates inNAD83]Exhibit G-2. Secondary Pb Smelter: Current Conditions Scenario Media Concentrations011099890003067 597755.22 3514351.96 3072 13 1 0.00384 0.00153 0.00171 0.001456 1.20 16.20 48.59011099889003051 597768.33 3521309.86 4147 69 19 0.00383 0.00152 0.00178 0.000928 0.99 15.99 47.96011099890003032 591555.58 3519210.92 5600 11 0 0.00377 0.00150 0.00168 0.000770 0.70 15.70 47.10011099891004056 600599.16 3517890.49 3839 43 2 0.00377 0.00152 0.00170 0.000902 0.82 15.82 47.46011099890003070 597766.93 3514296.64 3128 25 3 0.00374 0.00149 0.00166 0.001410 1.16 16.16 48.48011099890003155 599440.44 3514426.53 3877 51 5 0.00371 0.00148 0.00165 0.001400 1.15 16.15 48.45011099889004015 599208.10 3521467.77 4830 39 3 0.00370 0.00147 0.00172 0.000784 0.66 15.66 46.98011099890003028 593636.77 3520134.63 4272 12 0 0.00368 0.00147 0.00164 0.000790 0.80 15.80 47.41011099890003076 598154.44 3514202.57 3354 10 1 0.00367 0.00146 0.00163 0.001364 1.44 16.44 49.31011099891004055 600603.67 3517781.69 3827 46 4 0.00365 0.00148 0.00165 0.000892 0.81 15.81 47.44011099890003031 591523.93 3519382.97 5691 4 2 0.00362 0.00144 0.00161 0.000748 0.80 15.80 47.39011099890003153 600771.69 3516004.57 4160 2 0 0.00362 0.00144 0.00161 0.001150 0.91 15.91 47.74011099890003075 598078.75 3514193.79 3332 5 0 0.00361 0.00144 0.00161 0.001328 1.09 16.09 48.27011099890003074 598008.17 3514191.10 3308 6 0 0.00357 0.00142 0.00159 0.001302 1.07 16.07 48.21011099890003051 597834.09 3514206.58 3235 68 9 0.00355 0.00141 0.00158 0.001312 1.11 16.11 48.33011099890003050 597839.77 3514152.21 3288 24 2 0.00347 0.00138 0.00154 0.001274 1.08 16.08 48.23011099890003152 601158.72 3515429.88 4724 8 1 0.00339 0.00135 0.00151 0.001046 0.95 15.95 47.86011099889003052 596271.22 3522126.16 4881 5 0 0.00333 0.00133 0.00155 0.000708 0.75 15.75 47.26011099889003028 598544.06 3521622.63 4681 17 1 0.00328 0.00131 0.00152 0.000738 0.78 15.78 47.35011099890003049 597910.77 3514020.87 3435 40 2 0.00325 0.00129 0.00145 0.001170 1.24 16.24 48.73011099890003159 601002.16 3514537.46 5007 21 1 0.00324 0.00129 0.00144 0.001098 0.87 15.87 47.61011099889004011 599215.10 3521901.19 5214 10 0 0.00321 0.00128 0.00149 0.000676 0.72 15.72 47.16011099890003014 594505.54 3520739.19 4161 5 1 0.00321 0.00128 0.00143 0.000676 0.72 15.72 47.16011099889003027 598289.12 3521828.81 4788 43 4 0.00319 0.00127 0.00148 0.000764 0.81 15.81 47.44011099890003023 593525.60 3520530.69 4625 8 0 0.00309 0.00123 0.00137 0.000658 0.70 15.70 47.10011099891004030 601094.08 3517453.92 4288 8 2 0.00306 0.00124 0.00138 0.000728 0.60 15.60 46.79011099889004020 600889.23 3520173.98 5004 12 0 0.00305 0.00122 0.00142 0.000598 0.64 15.64 46.91011099889004014 599897.40 3521371.65 5130 59 2 0.00303 0.00121 0.00141 0.000626 0.65 15.65 46.96011099890003115 594220.40 3515036.57 3423 54 6 0.00300 0.00120 0.00133 0.000802 0.73 15.73 47.19011099889004016 600901.85 3520466.37 5189 15 4 0.00300 0.00119 0.00139 0.000582 0.62 15.62 46.86011099891004072 600815.89 3519314.62 4495 16 2 0.00299 0.00121 0.00135 0.000642 0.54 15.54 46.62011099889003012 596781.67 3522924.08 5649 231 20 0.00296 0.00118 0.00138 0.000650 0.69 15.69 47.07ICF International G-11 DRAFT - December 2006Appendix GBlock FIPS UTMx UTMyDistancefromSource(m)Pop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual PbAir Conc.(μg/m3)ModeledAverageAnnual PbAir ExposureConc. forPopulation(μg/m3)Children Ages 0 to4 Years ModeledAverage AnnualPb Air ExposureConc. (μg/m3)TotalDeposition(g/m2/year)ModeledSoil PbConc.(mg/kg)Modeled SoilPb Conc.PlusBackground(mg/kg)Hybrid ScaledSoil Pb Conc.(mg/kg)[FromAERMODmodeling][From NATAratios][For children ages0 to 4 years, fromNATA ratios][FromAERMODmodeling][FromMPE soilmixing][From MPEsoil mixing][Scaled threetimes modeledresults][From 2000U.S. Census][Centroid coordinates inNAD83]Exhibit G-2. Secondary Pb Smelter: Current Conditions Scenario Media Concentrations011099890003158 599502.14 3513922.22 4300 9 0 0.00296 0.00118 0.00131 0.001042 0.88 15.88 47.63011099890003018 591700.64 3520798.45 6206 3 0 0.00294 0.00117 0.00131 0.000550 0.57 15.57 46.72011099889001001 600634.69 3520945.48 5301 56 1 0.00288 0.00115 0.00134 0.000560 0.60 15.60 46.79011099889004018 601131.95 3520782.06 5566 4 0 0.00279 0.00111 0.00130 0.000520 0.54 15.54 46.63011099890003127 592817.61 3515448.12 4391 5 2 0.00278 0.00111 0.00124 0.000688 0.74 15.74 47.22011099890003160 601034.95 3513827.28 5453 14 2 0.00272 0.00108 0.00121 0.000882 0.95 15.95 47.84011099890003110 593536.56 3515345.78 3800 44 2 0.00270 0.00108 0.00120 0.000700 0.64 15.64 46.91011099889003026 598847.13 3522317.90 5439 401 70 0.00267 0.00107 0.00124 0.000556 0.59 15.59 46.77011099889004021 601182.78 3519639.71 4971 9 1 0.00261 0.00104 0.00121 0.000536 0.57 15.57 46.71011099890003020 592988.17 3520963.19 5311 30 4 0.00260 0.00103 0.00115 0.000526 0.54 15.54 46.61011099890003121 597784.29 3513011.88 4373 142 17 0.00259 0.00103 0.00115 0.000822 0.87 15.87 47.60011099890003125 595335.89 3512466.93 5029 6 0 0.00258 0.00103 0.00114 0.000528 0.42 15.42 46.26011099890003007 595316.53 3522274.48 5218 47 5 0.00253 0.00101 0.00112 0.000520 0.48 15.48 46.45011099890003005 595428.24 3522660.49 5560 13 0 0.00252 0.00100 0.00112 0.000472 0.44 15.44 46.31011099891004079 602009.57 3515583.4 5468 2 0 0.00252 0.00102 0.00114 0.000702 0.56 15.56 46.67011099889004022 601358.04 3519845.01 5224 19 5 0.00251 0.00100 0.00117 0.000494 0.45 15.45 46.35011099890003122 598088.44 3513356.41 4122 19 2 0.00250 0.00100 0.00111 0.000822 0.68 15.68 47.03011099889004017 601577.75 3520342.01 5669 30 4 0.00248 0.00099 0.00115 0.000456 0.49 15.49 46.46011099890003113 593356.57 3515066.00 4099 8 0 0.00244 0.00097 0.00108 0.000604 0.65 15.65 46.95011099890003123 598110.10 3513252.81 4227 14 1 0.00242 0.00096 0.00107 0.000786 0.65 15.65 46.94011099889003013 595422.76 3523064.56 5953 15 3 0.00239 0.00095 0.00111 0.000428 0.44 15.44 46.31011099889003023 599606.09 3522929.91 6308 60 7 0.00238 0.00095 0.00111 0.000468 0.49 15.49 46.47011099890003006 595294.12 3522650.17 5585 5 2 0.00236 0.00094 0.00105 0.000460 0.49 15.49 46.47011099890003112 593068.16 3515254.87 4252 2 1 0.00234 0.00093 0.00104 0.000594 0.54 15.54 46.62011099892001067 594615.81 3512103.55 5618 3 0 0.00233 0.00106 0.00104 0.000436 0.35 15.35 46.04011099892001034 592481.4 3515209.27 4796 5 0 0.00233 0.00106 0.00104 0.000554 0.60 15.60 46.79011099891004076 602273.84 3516021.39 5606 6 0 0.00232 0.00094 0.00105 0.000596 0.62 15.62 46.87011099890003004 595286.26 3522754.91 5688 78 6 0.00232 0.00092 0.00103 0.000446 0.45 15.45 46.36011099890003124 597523.00 3512411.79 4915 19 0 0.00227 0.00091 0.00101 0.000674 0.53 15.53 46.60011099892001030 593376.94 3514718.5 4280 9 0 0.00226 0.00103 0.00101 0.000550 0.50 15.50 46.50011099889004009 600900.61 3522083.89 6313 23 0 0.00224 0.00089 0.00104 0.000400 0.42 15.42 46.25011099889003015 598187.59 3523268.99 6150 5 0 0.00224 0.00089 0.00104 0.000450 0.46 15.46 46.37ICF International G-12 DRAFT - December 2006Appendix GBlock FIPS UTMx UTMyDistancefromSource(m)Pop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual PbAir Conc.(μg/m3)ModeledAverageAnnual PbAir ExposureConc. forPopulation(μg/m3)Children Ages 0 to4 Years ModeledAverage AnnualPb Air ExposureConc. (μg/m3)TotalDeposition(g/m2/year)ModeledSoil PbConc.(mg/kg)Modeled SoilPb Conc.PlusBackground(mg/kg)Hybrid ScaledSoil Pb Conc.(mg/kg)[FromAERMODmodeling][From NATAratios][For children ages0 to 4 years, fromNATA ratios][FromAERMODmodeling][FromMPE soilmixing][From MPEsoil mixing][Scaled threetimes modeledresults][From 2000U.S. Census][Centroid coordinates inNAD83]Exhibit G-2. Secondary Pb Smelter: Current Conditions Scenario Media Concentrations011099890003002 595125.85 3522704.04 5684 6 2 0.00222 0.00088 0.00099 0.000442 0.45 15.45 46.35011099890003015 593549.71 3521380.46 5243 18 2 0.00222 0.00088 0.00099 0.000448 0.33 15.33 46.00011099890003129 589718.49 3515518.42 7306 3 1 0.00219 0.00087 0.00098 0.000466 0.38 15.38 46.15011099890003003 595129.32 3522793.77 5769 4 1 0.00218 0.00087 0.00097 0.000428 0.44 15.44 46.31011099890003000 595204.93 3522990.99 5937 2 0 0.00217 0.00086 0.00097 0.000410 0.38 15.38 46.14011099890003021 592523.83 3521501.19 6019 6 0 0.00217 0.00086 0.00096 0.000418 0.35 15.35 46.06011099892001029 593402.33 3514577.65 4346 14 1 0.00214 0.00098 0.00096 0.000526 0.48 15.48 46.44011099892001031 593495.54 3514362.83 4412 43 1 0.00212 0.00097 0.00095 0.000510 0.46 15.46 46.39011099890003017 592241.24 3521638.73 6318 20 0 0.00207 0.00083 0.00092 0.000392 0.33 15.33 45.99011099892001033 592983.31 3514640.37 4646 2 0 0.00207 0.00095 0.00093 0.000486 0.40 15.40 46.20011099892001027 593693.6 3512844.91 5416 70 1 0.00207 0.00094 0.00092 0.000408 0.43 15.43 46.30011099891004025 603133.77 3516378.66 6387 72 11 0.00206 0.00083 0.00093 0.000456 0.48 15.48 46.43011099891004084 603065.37 3514524.62 6833 9 0 0.00205 0.00083 0.00093 0.000552 0.59 15.59 46.76011099890003001 594295.23 3522278.16 5600 20 1 0.00205 0.00082 0.00091 0.000402 0.30 15.30 45.89011099889003017 598509.41 3523711.47 6657 15 2 0.00205 0.00082 0.00095 0.000406 0.41 15.41 46.24011099892001028 593364.15 3514324.35 4537 30 3 0.00203 0.00093 0.00091 0.000482 0.44 15.44 46.32011099892001068 593885.84 3511308.8 6644 60 12 0.00202 0.00092 0.00090 0.000330 0.26 15.26 45.78011099891004028 602519.5 3517288.62 5710 24 5 0.00202 0.00081 0.00091 0.000428 0.39 15.39 46.17011099889003033 600814.82 3523022.32 7005 3 2 0.00201 0.00080 0.00093 0.000362 0.38 15.38 46.13011099889004005 602361.47 3522096.31 7353 3 0 0.00198 0.00079 0.00092 0.000324 0.34 15.34 46.03011099889004006 602392.21 3521688.46 7116 31 5 0.00197 0.00078 0.00091 0.000332 0.35 15.35 46.06011099889003025 599205.26 3523811.89 6962 4 0 0.00196 0.00078 0.00091 0.000376 0.32 15.32 45.95011099891004082 603140.99 3515227.82 6654 1 0 0.00195 0.00079 0.00088 0.000504 0.54 15.54 46.61011099889004023 602604.78 3519873.49 6351 7 2 0.00194 0.00077 0.00090 0.000350 0.37 15.37 46.12011099889003016 598228.24 3524056.47 6928 16 1 0.00193 0.00077 0.00090 0.000358 0.27 15.27 45.80011099890003016 592239.68 3521907.79 6508 5 0 0.00193 0.00077 0.00086 0.000366 0.37 15.37 46.12011099891004024 603521.47 3516520.62 6754 14 1 0.00190 0.00077 0.00086 0.000400 0.34 15.34 46.01011099889003018 598959.09 3524093.72 7149 5 0 0.00189 0.00075 0.00088 0.000376 0.38 15.38 46.15011099890003161 600827.28 3512521.16 6224 17 0 0.00186 0.00074 0.00083 0.000538 0.58 15.58 46.73011099891004089 602765.22 3512674.33 7525 66 3 0.00184 0.00075 0.00083 0.000506 0.54 15.54 46.61011099891004081 603641.73 3514835.77 7254 21 1 0.00184 0.00074 0.00083 0.000448 0.48 15.48 46.43011099891004083 603479.96 3515082.06 7021 2 0 0.00183 0.00074 0.00083 0.000452 0.41 15.41 46.23ICF International G-13 DRAFT - December 2006Appendix GBlock FIPS UTMx UTMyDistancefromSource(m)Pop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual PbAir Conc.(μg/m3)ModeledAverageAnnual PbAir ExposureConc. forPopulation(μg/m3)Children Ages 0 to4 Years ModeledAverage AnnualPb Air ExposureConc. (μg/m3)TotalDeposition(g/m2/year)ModeledSoil PbConc.(mg/kg)Modeled SoilPb Conc.PlusBackground(mg/kg)Hybrid ScaledSoil Pb Conc.(mg/kg)[FromAERMODmodeling][From NATAratios][For children ages0 to 4 years, fromNATA ratios][FromAERMODmodeling][FromMPE soilmixing][From MPEsoil mixing][Scaled threetimes modeledresults][From 2000U.S. Census][Centroid coordinates inNAD83]Exhibit G-2. Secondary Pb Smelter: Current Conditions Scenario Media Concentrations011099889003019 599996.99 3524136.02 7565 5 0 0.00179 0.00071 0.00083 0.000320 0.34 15.34 46.02011099889004007 601831.14 3522736.04 7419 13 0 0.00178 0.00071 0.00083 0.000292 0.30 15.30 45.91011099891004026 603130.38 3517233.25 6321 4 0 0.00176 0.00071 0.00080 0.000360 0.33 15.33 45.98011099889003011 598575.38 3524546.56 7483 3 0 0.00173 0.00069 0.00081 0.000324 0.33 15.33 45.99011099889004008 601879.84 3522944.14 7605 21 3 0.00173 0.00069 0.00080 0.000282 0.30 15.30 45.90011099891004027 603238.36 3517367.36 6429 2 0 0.00173 0.00070 0.00078 0.000346 0.31 15.31 45.94011099889003022 601583.62 3523492.48 7839 2 0 0.00173 0.00069 0.00080 0.000290 0.30 15.30 45.89011099891004092 604114.39 3514584.55 7784 80 17 0.00172 0.00069 0.00078 0.000400 0.42 15.42 46.25011099891004091 604101.4 3514677.14 7740 11 3 0.00169 0.00068 0.00076 0.000394 0.41 15.41 46.23011099891004019 603363 3517985.39 6591 78 6 0.00167 0.00067 0.00075 0.000338 0.36 15.36 46.08011099889003035 602011.85 3523339.50 7990 10 1 0.00164 0.00065 0.00076 0.000260 0.27 15.27 45.81011099891004018 603840.88 3516946.11 7039 47 3 0.00164 0.00066 0.00074 0.000318 0.27 15.27 45.80011099892001066 595173.9 3510514.39 6956 41 1 0.00160 0.00073 0.00071 0.000302 0.25 15.25 45.76011099889003020 600710.00 3525114.51 8756 7 1 0.00158 0.00063 0.00073 0.000266 0.27 15.27 45.81011099892001004 597256.63 3510063.17 7226 85 15 0.00157 0.00072 0.00070 0.000360 0.30 15.30 45.91011099889003010 598883.35 3525259.02 8249 5 1 0.00155 0.00062 0.00072 0.000272 0.28 15.28 45.84011099891004012 604921.7 3514196.67 8676 3 0 0.00153 0.00062 0.00069 0.000340 0.36 15.36 46.07011099891004013 604479.29 3514858.34 8041 27 5 0.00152 0.00062 0.00069 0.000358 0.37 15.37 46.12011099891004015 604852.88 3516474.63 8083 32 0 0.00150 0.00061 0.00068 0.000288 0.30 15.30 45.90011099891004014 604695.32 3515629.49 8055 196 21 0.00148 0.00060 0.00067 0.000314 0.33 15.33 45.98011099889003021 601879.48 3524628.19 8931 14 1 0.00147 0.00059 0.00068 0.000240 0.26 15.26 45.77011099892001001 599861.45 3511051.48 6931 105 15 0.00145 0.00066 0.00065 0.000390 0.33 15.33 45.99011099889004032 604198.68 3520462.96 8047 6 0 0.00143 0.00057 0.00066 0.000234 0.24 15.24 45.73011099891004011 605097.14 3513628.04 9054 50 3 0.00142 0.00057 0.00064 0.000338 0.31 15.31 45.92011099891004093 604778.89 3515030.69 8279 5 1 0.00140 0.00057 0.00063 0.000328 0.34 15.34 46.03011099891004094 604782.44 3515105.3 8262 12 0 0.00139 0.00056 0.00063 0.000328 0.34 15.34 46.03011099889004000 603633.78 3523742.73 9402 249 21 0.00139 0.00055 0.00065 0.000210 0.18 15.18 45.53011099892001036 589869.25 3514124.99 7622 38 2 0.00137 0.00062 0.00061 0.000258 0.19 15.19 45.57011099891004017 604596.53 3517472.78 7789 4 1 0.00135 0.00055 0.00061 0.000250 0.27 15.27 45.80011099892001002 598791.92 3510935.37 6642 36 2 0.00134 0.00061 0.00060 0.000348 0.29 15.29 45.88011099889003009 600393.94 3525944.88 9381 10 0 0.00132 0.00052 0.00061 0.000206 0.21 15.21 45.63011099892001003 598762.83 3510735.55 6825 2 0 0.00131 0.00060 0.00059 0.000340 0.29 15.29 45.86ICF International G-14 DRAFT - December 2006Appendix GBlock FIPS UTMx UTMyDistancefromSource(m)Pop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual PbAir Conc.(μg/m3)ModeledAverageAnnual PbAir ExposureConc. forPopulation(μg/m3)Children Ages 0 to4 Years ModeledAverage AnnualPb Air ExposureConc. (μg/m3)TotalDeposition(g/m2/year)ModeledSoil PbConc.(mg/kg)Modeled SoilPb Conc.PlusBackground(mg/kg)Hybrid ScaledSoil Pb Conc.(mg/kg)[FromAERMODmodeling][From NATAratios][For children ages0 to 4 years, fromNATA ratios][FromAERMODmodeling][FromMPE soilmixing][From MPEsoil mixing][Scaled threetimes modeledresults][From 2000U.S. Census][Centroid coordinates inNAD83]Exhibit G-2. Secondary Pb Smelter: Current Conditions Scenario Media Concentrations011099891004007 606020.86 3513570.98 9928 28 6 0.00131 0.00053 0.00059 0.000282 0.26 15.26 45.77011099892001000 601231.9 3510605.28 8002 5 1 0.00131 0.00060 0.00058 0.000336 0.35 15.35 46.06011099892001006 598350.78 3509775.23 7656 9 5 0.00130 0.00059 0.00058 0.000306 0.24 15.24 45.73011099892001008 597624.52 3509144.53 8171 20 3 0.00128 0.00058 0.00057 0.000286 0.27 15.27 45.80011099889003006 602271.27 3526919.83 11084 4 0 0.00126 0.00050 0.00059 0.000176 0.15 15.15 45.45011099891004095 605646.32 3515161.49 9086 9 1 0.00123 0.00050 0.00056 0.000258 0.27 15.27 45.82011099891004098 605057.7 3510819.88 10473 102 9 0.00122 0.00049 0.00055 0.000290 0.26 15.26 45.79011099891004096 605931.72 3515290.4 9335 45 8 0.00122 0.00049 0.00055 0.000244 0.26 15.26 45.78011099889003002 603606.01 3524619.26 10006 60 4 0.00121 0.00048 0.00056 0.000176 0.19 15.19 45.56011099892001007 598285.79 3509362.43 8049 19 5 0.00121 0.00055 0.00054 0.000280 0.24 15.24 45.71011099891004004 606001.17 3514480.83 9607 198 35 0.00121 0.00049 0.00054 0.000264 0.28 15.28 45.84011099891004010 606220.67 3511980.69 10798 23 2 0.00121 0.00049 0.00054 0.000294 0.27 15.27 45.80011099892001005 598944.82 3510260.61 7332 69 14 0.00120 0.00055 0.00054 0.000294 0.25 15.25 45.75011099891004008 606753.35 3513272.16 10719 1 0 0.00120 0.00048 0.00054 0.000250 0.23 15.23 45.68011099889003003 602763.42 3526038.87 10595 136 8 0.00119 0.00047 0.00055 0.000182 0.19 15.19 45.56011099889003005 602696.67 3526864.61 11252 2 0 0.00118 0.00047 0.00055 0.000160 0.14 15.14 45.41011099891004006 607033.48 3513082.57 11050 3 1 0.00115 0.00046 0.00052 0.000240 0.19 15.19 45.57011099891004005 607098.13 3513491.41 10962 6 1 0.00113 0.00046 0.00051 0.000230 0.21 15.21 45.63011099892001009 597644.18 3508067.4 9245 175 31 0.00112 0.00051 0.00050 0.000236 0.22 15.22 45.66011099891004003 607440.78 3513252.09 11366 25 3 0.00110 0.00045 0.00050 0.000216 0.18 15.18 45.53011099889003001 605529.50 3525201.21 11784 6 0 0.00109 0.00043 0.00050 0.000142 0.12 15.12 45.36011099892001026 593147.92 3508230.45 9758 118 12 0.00108 0.00049 0.00048 0.000162 0.17 15.17 45.51011099892001011 601425.91 3509094.49 9393 16 2 0.00107 0.00049 0.00048 0.000252 0.23 15.23 45.69011099892001010 599363.92 3509317.32 8357 98 12 0.00101 0.00046 0.00045 0.000226 0.19 15.19 45.57011099892001038 591623.69 3510966.99 8166 6 2 0.00101 0.00046 0.00045 0.000168 0.18 15.18 45.53011099892001037 590625.3 3512158.41 8027 121 20 0.00100 0.00046 0.00045 0.000180 0.15 15.15 45.45011099889003000 606421.83 3525999.55 12981 1 0 0.00096 0.00038 0.00045 0.000122 0.10 15.10 45.31011099891004001 607646.95 3514538.2 11177 3 0 0.00095 0.00038 0.00043 0.000186 0.15 15.15 45.46011099892001013 596874.96 3506579.74 10695 55 3 0.00095 0.00043 0.00042 0.000178 0.15 15.15 45.45011099891004000 608383.15 3513638.88 12131 13 1 0.00092 0.00037 0.00042 0.000176 0.16 15.16 45.48011099892001012 600307.01 3508365.01 9572 244 40 0.00089 0.00041 0.00040 0.000182 0.15 15.15 45.46011099892001014 598595.19 3506820.74 10606 10 0 0.00086 0.00039 0.00038 0.000170 0.16 15.16 45.47ICF International G-15 DRAFT - December 2006Appendix GBlock FIPS UTMx UTMyDistancefromSource(m)Pop2000ChildrenAges 0to 7Years2000ModeledAverageAnnual PbAir Conc.(μg/m3)ModeledAverageAnnual PbAir ExposureConc. forPopulation(μg/m3)Children Ages 0 to4 Years ModeledAverage AnnualPb Air ExposureConc. (μg/m3)TotalDeposition(g/m2/year)ModeledSoil PbConc.(mg/kg)Modeled SoilPb Conc.PlusBackground(mg/kg)Hybrid ScaledSoil Pb Conc.(mg/kg)[FromAERMODmodeling][From NATAratios][For children ages0 to 4 years, fromNATA ratios][FromAERMODmodeling][FromMPE soilmixing][From MPEsoil mixing][Scaled threetimes modeledresults][From 2000U.S. Census][Centroid coordinates inNAD83]Exhibit G-2. Secondary Pb Smelter: Current Conditions Scenario Media Concentrations011099892001042 591017.4 3506462 12267 40 2 0.00085 0.00039 0.00038 0.000098 0.10 15.10 45.31011099891004100 603343.55 3507723.76 11572 45 3 0.00081 0.00033 0.00037 0.000178 0.15 15.15 45.45011099892001039 590400.65 3509292.4 10237 142 17 0.00079 0.00036 0.00035 0.000120 0.10 15.10 45.30011099892001053 588438.07 3511127.65 10386 23 1 0.00076 0.00034 0.00034 0.000122 0.10 15.10 45.29011099892001047 590238.95 3505811.22 13214 15 3 0.00074 0.00034 0.00033 0.000084 0.09 15.09 45.27011099892001048 589974.13 3506336.98 12898 3 0 0.00073 0.00033 0.00032 0.000090 0.08 15.08 45.23011099892001046 591120.9 3504299.27 14168 1 0 0.00071 0.00032 0.00032 0.000090 0.08 15.08 45.25011099892001070 602579.05 3506011.96 12655 22 1 0.00070 0.00032 0.00031 0.000140 0.13 15.13 45.39011099892001049 589776.84 3506531.77 12841 7 0 0.00068 0.00031 0.00030 0.000088 0.07 15.07 45.20011099892001062 589731.19 3505039.91 14135 10 2 0.00068 0.00031 0.00030 0.000076 0.06 15.06 45.19011099892001045 591787.32 3504083.46 14115 3 0 0.00068 0.00031 0.00030 0.000082 0.09 15.09 45.26011099892001050 589105.38 3506456.43 13282 11 0 0.00067 0.00031 0.00030 0.000088 0.08 15.08 45.24011099892001052 588221.88 3509716.96 11440 25 1 0.00066 0.00030 0.00029 0.000102 0.08 15.08 45.24011099892001061 589416 3504614.93 14661 1 0 0.00065 0.00030 0.00029 0.000072 0.06 15.06 45.18011099892001059 588803.48 3503884.08 15602 41 2 0.00060 0.00028 0.00027 0.000066 0.06 15.06 45.17011099892001051 587247.79 3507863.51 13417 45 7 0.00055 0.00025 0.00025 0.000076 0.07 15.07 45.21011099892001055 584809.18 3508859 14658 6 0 0.00052 0.00024 0.00023 0.000070 0.08 15.08 45.23011099892001058 587500.15 3503800.42 16378 10 0 0.00052 0.00024 0.00023 0.000058 0.05 15.05 45.15011099892001057 587559.57 3505739.81 14786 23 0 0.00051 0.00023 0.00023 0.000062 0.06 15.06 45.19ICF International G-16 DRAFT - December 2006

### Appendix G

From Non-air

Sources From Air-related

Sources Total

011099890003046 2 60 73 133

011099890002042 1 60 54 114

011099890003042 6 60 35 95

011099890002050 5 60 27 87

011099890002041 1 60 22 82

011099890003137 1 60 21 81

011099891003011 1 60 18 78

011099891003012 2 60 17 77

011099890002047 3 60 17 77

011099890003138 4 60 16 76

011099890002039 3 60 16 76

011099890002026 5 60 15 75

011099890002023 32 60 15 75

011099891003013 5 60 15 75

011099890002025 2 60 15 75

011099890002038 5 60 15 75

011099891003010 1 60 14 74

011099891003009 2 60 14 74

011099890002024 14 60 14 74

011099890002036 3 60 14 74

011099891003022 1 60 13 73

011099890002037 1 60 13 73

011099891003023 4 60 13 73

011099890003140 5 60 13 73

011099890002027 9 60 13 73

011099890003094 1 60 12 72

011099891002018 5 60 12 72

011099891003025 9 60 12 72

011099890002029 1 60 12 72

011099890002028 4 60 11 71

011099891002019 2 60 11 71

011099891003008 7 60 11 71

011099890002018 4 60 11 71

011099890002019 2 60 11 71

011099891003016 5 60 11 71

011099890003087 3 60 11 71

011099890003093 4 60 11 71

011099890002015 1 60 10 70

011099891002020 2 60 10 70

011099890002022 4 60 10 70

011099890003083 5 60 10 70

011099891002013 1 60 10 70

011099890003088 2 60 10 70

011099890003086 1 60 10 70

011099891003005 2 60 10 70

011099891002017 1 60 10 70

011099890001035 3 60 9 69

011099891001017 1 60 9 69

011099891002011 1 60 9 69

011099891003000 10 60 9 69

011099891002012 4 60 9 69 Current Conditions Scenario: Predicted Indoor Dust Concentrations (mg/kg) Children Ages 0 to 7

Years in

2000 Block FIPS 

## Exhibit G-3. Secondary Pb Smelter: Modeled Indoor Dust Concentrations

ICF International G-17 DRAFT - December 2006

### Appendix G

From Non-air

Sources From Air-related

Sources Total Current Conditions Scenario: Predicted Indoor Dust Concentrations (mg/kg) Children Ages 0 to 7

Years in

2000 Block FIPS 

## Exhibit G-3. Secondary Pb Smelter: Modeled Indoor Dust Concentrations

011099890003089 6 60 9 69

011099891002007 1 60 9 69

011099891003004 3 60 9 69

011099891002014 8 60 9 69

011099890003082 3 60 8 68

011099890002017 4 60 8 68

011099891003006 6 60 8 68

011099890001026 7 60 8 68

011099890003085 4 60 8 68

011099891003028 3 60 8 68

011099890001025 2 60 8 68

011099891002002 3 60 8 68

011099891002015 8 60 8 68

011099891003003 1 60 8 68

011099890001027 4 60 8 68

011099890003040 36 60 8 68

011099891002003 5 60 8 68

011099890003142 2 60 8 68

011099891003007 2 60 7 67

011099891002016 4 60 7 67

011099890003143 1 60 7 67

011099891004068 9 60 7 67

011099890001029 10 60 7 67

011099891002001 32 60 7 67

011099890003144 3 60 7 67

011099890001023 16 60 7 67

011099890001032 3 60 7 67

011099891004060 3 60 7 67

011099889002029 2 60 6 66

011099889002026 15 60 6 66

011099891003001 3 60 6 66

011099890001031 1 60 6 66

011099890003107 5 60 6 66

011099890001024 3 60 6 66

011099891001016 1 60 6 66

011099889002023 7 60 6 66

011099890001015 8 60 6 66

011099891004050 7 60 6 66

011099889002022 1 60 6 66

011099890003048 55 60 6 66

011099891004047 6 60 6 66

011099889002030 5 60 6 66

011099889002011 3 60 6 66

011099889002021 5 60 5 65

011099891004046 2 60 5 65

011099891004043 1 60 5 65

011099890001011 3 60 5 65

011099889001010 6 60 5 65

011099889002031 1 60 5 65

011099890001012 5 60 5 65

011099891004059 6 60 5 65



### ICF International G-18 DRAFT - December 2006

### Appendix G

From Non-air

Sources From Air-related

Sources Total Current Conditions Scenario: Predicted Indoor Dust Concentrations (mg/kg) Children Ages 0 to 7

Years in

2000 Block FIPS 

## Exhibit G-3. Secondary Pb Smelter: Modeled Indoor Dust Concentrations

011099891004051 4 60 5 65

011099891004034 1 60 5 65

011099890001006 5 60 5 65

011099891004049 6 60 5 65

011099891004048 2 60 5 65

011099891004041 9 60 5 65

011099891004052 2 60 5 65

011099890003077 1 60 5 65

011099890001018 1 60 5 65

011099890003080 18 60 5 65

011099890001008 2 60 5 65

011099889002012 2 60 5 65

011099889002014 1 60 5 65

011099891004045 2 60 5 65

011099889001011 20 60 5 65

011099890001020 1 60 5 65

011099889002019 1 60 5 65

011099889002015 8 60 5 65

011099890003036 2 60 5 65

011099890003109 1 60 5 65

011099890001009 8 60 5 65

011099889001009 2 60 5 65

011099890003078 2 60 5 65

011099889002017 2 60 5 65

011099889002020 1 60 5 65

011099890001010 1 60 5 65

011099891004033 2 60 5 65

011099890003058 1 60 5 65

011099891004036 8 60 5 65

011099890001013 2 60 4 64

011099889001007 32 60 4 64

011099889002007 1 60 4 64

011099889002016 2 60 4 64

011099890003079 5 60 4 64

011099890003056 2 60 4 64

011099890001002 26 60 4 64

011099889002006 4 60 4 64

011099890003060 4 60 4 64

011099890003055 4 60 4 64

011099889001005 8 60 4 64

011099889002001 2 60 4 64

011099890003037 7 60 4 64

011099890001000 13 60 4 64

011099889002000 7 60 4 64

011099890001019 1 60 4 64

011099890003054 1 60 4 64

011099891004057 4 60 4 64

011099889001004 60 60 4 64

011099890003053 2 60 4 64

011099891004058 6 60 4 64

011099890001001 1 60 4 64



### ICF International G-19 DRAFT - December 2006

### Appendix G

From Non-air

Sources From Air-related

Sources Total Current Conditions Scenario: Predicted Indoor Dust Concentrations (mg/kg) Children Ages 0 to 7

Years in

2000 Block FIPS 

## Exhibit G-3. Secondary Pb Smelter: Modeled Indoor Dust Concentrations

011099891004031 16 60 4 64

011099891004039 2 60 4 64

011099891004038 1 60 4 64

011099891004037 6 60 4 64

011099890003114 8 60 4 64

011099889001012 3 60 4 64

011099889001013 5 60 4 64

011099890003064 1 60 4 64

011099890003065 3 60 4 64

011099889003042 3 60 4 64

011099890003073 2 60 4 64

011099890003068 10 60 4 64

011099890001003 2 60 4 64

011099890001005 1 60 4 64

011099889003043 22 60 4 64

011099889003044 3 60 4 64

011099890003072 1 60 4 64

011099890003061 16 60 3 63

011099890003069 2 60 3 63

011099890003052 1 60 3 63

011099889003041 7 60 3 63

011099890003066 1 60 3 63

011099890003128 6 60 3 63

011099889001002 4 60 3 63

011099891004054 5 60 3 63

011099889001014 3 60 3 63

011099890003071 4 60 3 63

011099890003067 1 60 3 63

011099889003051 19 60 3 63

011099891004056 2 60 3 63

011099890003070 3 60 3 63

011099890003155 5 60 3 63

011099889004015 3 60 3 63

011099890003076 1 60 3 63

011099891004055 4 60 3 63

011099890003031 2 60 3 63

011099890003051 9 60 3 63

011099890003050 2 60 3 63

011099890003152 1 60 3 63

011099889003028 1 60 3 63

011099890003049 2 60 3 63

011099890003159 1 60 3 63

011099890003014 1 60 3 63

011099889003027 4 60 3 63

011099891004030 2 60 3 63

011099889004014 2 60 3 63

011099890003115 6 60 3 63

011099889004016 4 60 3 63

011099891004072 2 60 3 63

011099889003012 20 60 3 63

011099889001001 1 60 2 62



### ICF International G-20 DRAFT - December 2006

### Appendix G

From Non-air

Sources From Air-related

Sources Total Current Conditions Scenario: Predicted Indoor Dust Concentrations (mg/kg) Children Ages 0 to 7

Years in

2000 Block FIPS 

## Exhibit G-3. Secondary Pb Smelter: Modeled Indoor Dust Concentrations

011099890003127 2 60 2 62

011099890003160 2 60 2 62

011099890003110 2 60 2 62

011099889003026 70 60 2 62

011099889004021 1 60 2 62

011099890003020 4 60 2 62

011099890003121 17 60 2 62

011099890003007 5 60 2 62

011099889004022 5 60 2 62

011099890003122 2 60 2 62

011099889004017 4 60 2 62

011099890003123 1 60 2 62

011099889003013 3 60 2 62

011099889003023 7 60 2 62

011099890003006 2 60 2 62

011099890003112 1 60 2 62

011099890003004 6 60 2 62

011099890003002 2 60 2 62

011099890003015 2 60 2 62

011099890003129 1 60 2 62

011099890003003 1 60 2 62

011099892001029 1 60 2 62

011099892001031 1 60 2 62

011099892001027 1 60 2 62

011099891004025 11 60 2 62

011099890003001 1 60 2 62

011099889003017 2 60 2 62

011099892001028 3 60 2 62

011099892001068 12 60 2 62

011099891004028 5 60 2 62

011099889003033 2 60 2 62

011099889004006 5 60 2 62

011099889004023 2 60 2 62

011099889003016 1 60 2 62

011099891004024 1 60 2 62

011099891004089 3 60 2 62

011099891004081 1 60 2 62

011099889004008 3 60 1 61

011099891004092 17 60 1 61

011099891004091 3 60 1 61

011099891004019 6 60 1 61

011099889003035 1 60 1 61

011099891004018 3 60 1 61

011099892001066 1 60 1 61

011099889003020 1 60 1 61

011099892001004 15 60 1 61

011099889003010 1 60 1 61

011099891004013 5 60 1 61

011099891004014 21 60 1 61

011099889003021 1 60 1 61

011099892001001 15 60 1 61



### ICF International G-21 DRAFT - December 2006

### Appendix G

From Non-air

Sources From Air-related

Sources Total Current Conditions Scenario: Predicted Indoor Dust Concentrations (mg/kg) Children Ages 0 to 7

Years in

2000 Block FIPS 

## Exhibit G-3. Secondary Pb Smelter: Modeled Indoor Dust Concentrations

011099891004011 3 60 1 61

011099891004093 1 60 1 61

011099889004000 21 60 1 61

011099892001036 2 60 1 61

011099891004017 1 60 1 61

011099892001002 2 60 1 61

011099891004007 6 60 1 61

011099892001000 1 60 1 61

011099892001006 5 60 1 61

011099892001008 3 60 1 61

011099891004095 1 60 1 61

011099891004096 8 60 1 61

011099891004098 9 60 1 61

011099889003002 4 60 1 61

011099892001007 5 60 1 61

011099891004010 2 60 1 61

011099891004004 35 60 1 61

011099892001005 14 60 1 61

011099889003003 8 60 1 61

011099891004006 1 60 1 61

011099891004005 1 60 1 61

011099892001009 31 60 1 61

011099891004003 3 60 1 61

011099892001026 12 60 1 61

011099892001011 2 60 1 61

011099892001010 12 60 1 61

011099892001038 2 60 1 61

011099892001037 20 60 1 61

011099892001013 3 60 1 61

011099891004000 1 60 1 61

011099892001012 40 60 1 61

011099892001042 2 60 1 61

011099891004100 3 60 1 61

011099892001039 17 60 1 61

011099892001053 1 60 1 61

011099892001047 3 60 1 61

011099892001070 1 60 1 61

011099892001062 2 60 1 61

011099892001052 1 60 1 61

011099892001059 2 60 1 61

011099892001051 7 60 0 60



### ICF International G-22 DRAFT - December 2006

## Appendix G

ICF International G-23 DRAFT – December 2006 

## Exhibit G-4. Input Parameters for Secondary Pb Smelting Facility Soil Calculations
Use in model Parameter Description Value Used Source and Reason a



### Dyd Yearly dry deposition rate
of contaminant Varies by block (g/m 2 

### -yr)

(See Exhibit G-2 for values) AERMOD results – deposition at each
block was assumed constant for modeling period.

Dyw Yearly wet deposition rate
of contaminant 0 AERMOD results indi cated very small wet deposition.

tD Total time period over which deposition

occurs 37 years Lifetime of the facility (1969 to present, according to Alabama Department of Environmental Management [2006]).

Zs Soil mixing depth 1 cm HHRAP; California Office of
Environmental Health Hazard Assessment (2000); and for consistency with primary Pb smelter soil samples. Mixing equation parameters

BD Bulk density of
soil Varies (g/cm 3 

### ) (Average 1.47) From soil survey for Pike county (NRCS 2006). Soil type at each block centroid
was identified.

My Rainfall 136.7 cm/year Annual normal precipitation from 1971 to 2000 for Troy, AL (NCDC 2002). I Irrigation 0 Assumption. Loss equation meteorological parameters Ev Evapotranspiration 82.5 cm/yr Midpoint of estimated evapotranspiration for Alabama based on hydrologic budget of the state (Hanson 1991).

RO Average annual
surface runoff 51.1 cm/yr Value for the south east central United States (McKone and Bodnar 2001).

esw Volumetric soil

water content 0.2 mL/cm 3 

### HHRAP midpoint value default.

Kds Soil-water partitioning
coefficient 900 mL/g HHRAP default for Pb.

SD Sediment delivery ratio 0.18 MPE default. Loss equation
soil and
contaminant properties

ER Contaminant
enrichment ratio 1 HHRAP default.

R Erosivity factor 350 yr -1 

### Estimated from U.S. Soil Conservation Service Map in Schwab et al. (1993).

K Erodibility factor Varies (ton/acre) (average 0.18) From soil survey for Pike county (NRCS 2006). Soil type at each block centroid
was identified.

LS Topographical or slope-length
factor 1.5 HHRAP default that represents a variety of distance and slope conditions.
Default was selected because of the large area used relative to the intended design of USLE.

C Cover management factor 0.1 HHRAP value for grass and agricultural

crops. Loss equation
Universal Soil Loss Equation (USLE)
additional parameters

P Supporting practice factor 0 HHRAP conservative assumption that no erosion prevention methods are in place.

a 

### HHRAP refers to USEPA (2006) and MPE refers to USEPA (1998). 

## 1

2

## Appendix G

ICF International G-24 DRAFT – December 2006 

## References 1

Alabama Department of Environm ental Management (ADEM). (2006) Personal communication 2
with Charles Killebrew. September 6, 2006. 3

California Office of Environmental Health Hazard Assessment. (2000) Air Toxics "Hot Spots" 4 Program Risk Assessment Guidelines Part IV: Technical Support Document for Exposure 5 Assessment and Stochastic Analysis. September. Available at 6 http://www.oehha.org/air/hot_spots /finalStoc.html#download. 7

Hanson, R.L. (1991) Evapotranspiration and Droughts in National Water Summary 1988-1989 - 8 Hydrologic Events and Floods and Droughts. U.S. Geological Survey Water-Supply Paper 2375. 9 Available at http://geochange.e r.usgs.gov/sw/changes/natural/et. 10

McKone, T.E. and Bodnar, A.B. (2001) Development and Evaluation of State-Specific 11 Landscape Data Sets for Multimedia Source-to-Dose Models. Ernesto Orlando Lawrence 12 Berkley National Laboratory. LBNL-43722. July. 13

National Climatic Data Center (NCDC). (2002) Climatography of the United States. No. 81, 14
Volumes 1 and 23. Available at http://cdo.ncdc.noaa.gov/CDO/cdo. 15

National Resources Conserva tion Service (NRCS). (2006) Soil Survey Geographic (SSURGO) 16 Database for Pike County, Alabama. Fort Worth, TX: U.S. Department of Agriculture. Available 17 at http://www.ftw.nrcs.usda.gov/ssur_data.html. 18

Schwab, G.O., Fangmeier, D.D., Elliot, W.J., and Frevert, R.K. (1993) Soil and water 19 conservation engineering . Wiley: New York. 20

U.S. Environmental Protection Agency (USEPA). (1998) Methodology for Assessing Health 21 Risks Associated with Multiple Pathways of Exposure to Combustor Emissions. Cincinnati, OH: 22 Update to EPA/600/6-90/003, EPA/NCEA (EPA 600/R-98/137). Available at 23 oaspub.epa.gov/eims/eimsco mm.getfile?p_download_id=427339. 24

U.S. Environmental Protection Agency (USEPA). (2006) Human Health Risk Assessment 25 Protocol for Hazardous Waste Combustion Facilities. Office of Solid Waste and Emergency 26 Response. EPA530-R-05-006. September. Available at 27 http://www.epa.gov/epaoswer/hazwaste/combust/risk.htm. 28

# Appendix H

Data Supporting National-Scale Surface Water Ecological Risk Screening Assessment

## Appendix H

ICF International H-1 DRAFT – December 2006 

## Appendix H presents step-by-step instructions for performing queries in the National Water 1 

## Quality Assessment (NAWQA) Database to obtain Pb concentration data in surface waters and 2 

## sediment, as well as a list of U.S. Geologi cal Survey study units/b asins in the NAWQA 3 

## Database. Exhibit H-1 lists the NAWQA study units /basins, the number of sampling stations in 4 

## each study unit/basin, and the number of sampli ng stations with available dissolved Pb 5


## concentration data. A discussion of these results is provided in Chapter 4 of the report. 6

7 

## The remainder of Appendix H presents a discu ssion of dissolved Pb measurements at NAWQA 8 

## stations as well as characteristics of sampli ng locations where dissolved Pb concentrations 9 

## exceed EPA ambient water quality criteria for the pr otection of aquatic life and their uses. These 10 

## results are discussed in Chapter 7 of the report. 11

## Appendix H

ICF International H-2 DRAFT – December 2006 

## H.1 Instructions for Downloading Data from the NAWQA Database 1

2 

## 1) Go to the Web page: 3 

## http://infotrek.er.usgs.gov /traverse/f?p=NAWQA:HOME:6086610979587376337 4

5 

## 2) Under “Retrieve Data” on the left-hand panel, select Surface Water/Bed Sediment

. 6

7 

## 3) On the Surface Water/Bed Sediment page, select Expanded Cross-tab (Pivot Table) 8 

## Output

. 9


## 4) On the SWmaster – crosstab-expanded page, selected the Search icon ( ). 10

11 

## 5) Choose NAWQA Study Unit(s) 12



## • Select/highlight multiple study units from the list under the “Available” box on the left, 13



## then select the Move icon ( ). Highlighted study units should appear under the 14 

## “Selected” box on the right. Click the Select button belo w the “Selected” box. This 15 

## returns you to the SWmaster – crosstab-expanded page. 16

17 

## 6) Next choose Lab Schedule(s) 18



## • Select/highlight lab schedule(s) of interest (i.e., “Trace Elements in Water (2703) [17]”) 19



## from the list under the “Available” box on th e left, then select the Move icon ( ). 20 

## Highlighted lab schedule(s) s hould appear under th e “Selected” box on th e right. Click 21


## the Select button below the “Selected” box. This returns you to the SWmaster – crosstab22 

## expanded page. (To query sediment data instead of and/or in add ition to surface water 23 

## data, select the “Trace Elements in Sediment (2420) [48]” option instead of and/or in 24 

## addition to “Trace Elements in Water (2703) [17]” when highlighti ng lab schedule(s) of 25 

## interest.) 26

27 

## 7) Next choose Water Year(s) 28



## • Click on “Next 25” under “Available” box four times, so that the years displayed are 29 

## 1995 through 2010. Select/highlight 1995 th rough 2004 from the list under the 30



## “Available” box on the left, then select the Move icon ( ). Highlighted years should 31 

## appear under the “Selected” box on the righ t. Click the Select button below the 32


## “Selected” box. 33

34 

## 8) On the SWmaster – crosstab-expanded page, select Go at the bottom of the page. Once the 35 

## Query progress page progresses into a page where available data is displayed, click 36 

## Export , in the top left corner of the page under “Actions.” 37

38 

## 10) On the Choose Export Type page, select the type of file to be exporte d (i.e., .csv) and select 39


## the Export button on the right. 40

41 

## 11) On the Export Ready page, select Click to View or Save . The .csv file (or other requested 42 

## file type) should download. 43

## Appendix H

ICF International H-3 DRAFT – December 2006 

## Exhibit H-1. USGS NAWQA Study Un its and Sampling Stations for which
Dissolved Pb was Measured a



### Study

Unit

ID Study Unit (Basin) Name (Year Sampling Started) Number
of
Stations

in Unit Number of
Stations With
No Dissolved
Pb
Measurements Number of
Stations With
Dissolved Pb
Measurements Fraction of
Stations with
Dissolved Pb
Measurements

28 ACAD Acadian-Pontchartrain (1997) 69 64 5 7.2%

19 ALBE Albemarle-Pamlico Drainage (1991) 93 84 9 9.7%

9 ALMN Allegheny and Monongahela (1994) 130 119 11 8.5%

22 ACFB ApalachicolaChattahoochee-Flint River Basin (1991) 104 101 3 2.9%

49 CAZB Central Arizona Basins (1994) 17 12 5 29.4%

50
51 CCYK Central Columbia Plateau
& Yakima River Basin (1991, 1999) 89 55 34 38.2%

35 CNBR Central Nebraska Basins (1991) 17 8 9 52.9%

2 CONN Connecticut - Housatonic -
and Thames River Basins (1991) 68 46 22 32.4%

59 COOK Cook Inlet Basin 43 31 12 27.9%

5 DELR Delaware River Basin (1997) 94 92 2 2.1%

30 EIWA Eastern Iowa Basins (1994) 33 32 1 3.0%

23 GAFL Georgia-Florida Coastal Plain (1991) 24 24 0 0.0%

47 GRSL Great Salt Lake Basins (1997) 112 67 45 40.2%

3 HDSN Hudson River Basin (1991) 32 31 1 3.1%

10 KANA Kananha-New River Basin (1994) 66 62 4 6.1%

11 LERI Lake Erie - Lake St. Clair Drainage (1994) 11 11 0 0.0%

4 LINJ Long Island and New Jersey Coastal Drainage (1994) 62 62 0 0.0%

15 LIRB Lower Illinois River Basin (1994) 29 29 0 0.0%

6 LSUS Lower Susquehanna River Basin (1991) 57 57 0 0.0%

27 MISE Mississippi Embayment (1994) 11 11 0 0.0%

26 MOBL Mobile River and Tributaries (1997) 39 31 8 20.5%

55 NVBR Nevada Basin and Range (1991) 16 13 3 18.8%

1 NECB New England Coastal Basins (1997) 36 35 1 2.8%

46 NROK Northern Rockies
Intermontane Basins (1997) 30 1 29 96.7%

58 OAHU Oahu (1997) 16 8 8 50.0%

## Appendix H

ICF International H-4 DRAFT – December 2006 

## Exhibit H-1. USGS NAWQA Study Un its and Sampling Stations for which
Dissolved Pb was Measured a



### Study

Unit

ID Study Unit (Basin) Name (Year Sampling Started) Number
of
Stations

in Unit Number of
Stations With
No Dissolved
Pb
Measurements Number of
Stations With
Dissolved Pb
Measurements Fraction of
Stations with
Dissolved Pb
Measurements

31 OZRK Ozark Plateaus (1991) 51 14 37 72.5%

8
7 PODL Potomac River Basin & Delmarva Peninsula (1991, 1999) 68 68 0 0.0%

52 PUGT Puget Sound Basin (1994) 11 7 4 36.4%

18 REDN Red River of the North Basin (1991) 23 23 0 0.0%

45 RIOG Rio Grande Valle y (1991) 18 0 18 100.0%

54 SACR Sacramento River Basin (1994) 34 22 12 35.3%

56 SANJ San Joaqin-Tulare Basins (1991) 36 36 0 0.0%

57 SANA Santa Ana River Basin (1997) 41 33 8 19.5%

21 SANT Santee Basin and Coastal Drainages (1994) 48 48 0 0.0%

34 SCTX South central Texas (1994) 14 4 10 71.4%

40 SPLT South Platte River Basin (1991) 48 44 4 8.3%

24 SOFL Southern Florida (1994) 26 26 0 0.0%

20
29 TENN Tennessee River Basin (upper & lower; 1994, 1997) 130 130 0 0.0%

33 TRIN Trinity River Basin (1991) 19 18 1 5.3%

44 UCOL Upper Colorado River Basin (1994) 68 23 45 66.2%

14 UIRB Upper Illinois River Basin (1997) 56 56 0 0.0%

17 UMIS Upper Mississippi River Basin (1994) 44 44 0 0.0%

48 USNK Upper Snake River Basin (1991) 35 29 6 17.1%

16 WMIC Western Lake Michigan Drainage (1991) 72 72 0 0.0%

13
12 WHMI White River & Great and
Little Miami River Basins (1991, 1997) 104 104 0 0.0%

53 WILL Williamette Basin (1991) 47 46 1 2.1%
43 YELL Yellowstone Basin (1997) 14 3 11 78.6%

TOTAL 2305 1936 369 16.0%

a 

### Listed in alphabetical order by four-letter code; numbers correspond to those on the map in Exhibit 4-32. Note: The NAWQA Web site (water.usgs.gov/nawqa/nawq amap.html) lists a total of 59 study units; however, sampling has not started at eight of those units, and some of the other units appear to have been combined into a single unit in the database (e.g., the Central Columbia Pl ateau (CCPT) Unit, started in 1991, and the Yakima River Basin (YAKI) Unit, started in 1999, appear to have been combined into the Central Columbia Plateau-Yakima River Basin (CCYK) Unit in the data warehouse).


## 1

2

## Appendix H

ICF International H-5 DRAFT – December 2006 

## H.2 Dissolved Pb Measurements 1

2 

## This section presents the dissolved Pb concen trations at individual NAWQA sampling stations 3 

## where one or more samples exceeded the initial screening value of 1.2 μg/L. Dissolved Pb 4 

## concentrations are also reported for those stations which exceeded the second screening value for 5 

## the water hardness-specific Criteri on Continuous Concentration (CCC) for areas with very soft 6 

## water (i.e., hardness less than 50 mg/L as CaCO 3 

## ). The CCC is also known as the chronic 7 

## Ambient Water Quality Criteria (AWQC) for the protection of aquatic life and its uses. The 8 

## dissolved Pb concentration of 1.2 μg/L was select ed for the initial screening assessment because 9 

## it is the CCC for a water hardness of 50 mg/L, consid ered to be soft water. However, for areas 10 

## of the country with even softer water, the CCC is less than 1.2 μg/L. To determine how much 11 

## less, for the second screening assessment, th e co-located (or nearby) measures of CaCO 3 

## were 12


## identifies and used to calculate the har dness-specific CCC for comparison with the Pb 13


## concentrations. 14

15 

## For ease of data management, the results from the 47 NAWQA Study Units are divided into 2 16 

## groups: 1) data from the first 25 Units (alphabe tically by Unit code) and 2) data from the 17 

## remaining 22 Units. Exhibits H-2 and H-4 present the results of the initial screening assessment 18 

## against a concentration of 1.2 μg/L dissolved Pb. In these da ta sets, most measurements were 19 

## made with a quantitation limit (QL) of 1 μg/L , although some QLs were lower and a few QLs 20 

## were higher (2 μg/L). The QL was less than th e screening value for almost all samples. For 21 

## samples with a QL of 2 μg/L, the reported concentration is listed in the table as “< 2” μg/L. 22 

## Exhibits H-3 and H-5 present th e results of the second screeni ng assessment for which hardness23 

## specific CCC values of less than 1.2 μg/L were calc ulated. The interpretation of these data was 24 

## complicated by the most frequent QL of 1 μg/L, which was higher than the CCC. For cases 25 

## where all reported concentrations for a sampling station were le ss than the location-specific CCC 26 

## or below the QL, the sampling station was remove d from the analysis. The fraction of samples 27 

## exceeding the screening value is reported in all cases. 28

29 

## Each exhibit presents the indivi dual measured dissolved Pb concentrations for single sampling 30 

## events that exceed the screening value (either 1.2 μg/L or the location-specific CCC) and the 31


## mean value of the measurements that exceed the screening value. Measurements less than the 32 

## screening value are not included in the estimate of the mean, nor are the QL or one half of the 33 

## QL included in the estimate of the mean for meas ures less than the QL. The mean value simply 34 

## describes the average amount by wh ich the screening value is exce eded when exceedance can be 35


## demonstrated. 36

37 

## The risk to aquatic communities were considered to be negligible, with no further analysis 38 

## needed for stations at which less than 5 percen t of the samples demonstrated to exceed the 39 

## screening value (1.2 μg/L or the location-specific CCC) and the rati o of the few measured values 40 

## to the screening assessment was le ss than five. This is repres ented in Exhibits H-2 through H-5 41 

## by “na.” 42

43

44

45Appendix HICF InternationalH-6 DRAFT – December 2006Exhibit H-2. Dissolved Pb Measurements Exceeding 1.2 μg/Lat NAWQA Sampling StationsBetween 1994 and 2004 for First 25Study Units (1.2 μg/L = CCC at aWater Hardness of 50 mg/L as CaCO3)[Pb] (μg/L)StateStudyUnitIDStationIDPlace NameLand UseLatitudeLongitudeNo.[Pb] >1.2μg/L /Total NMeasurementDate and TimeSingle MeanaAZ CAZB 9517000 Hassayampa River nr Arlington Agriculture 33.3 -112.7 1/11/22/1997 11:30 < 2 <2WA CCYK 461850120005800 Sunnyside WWTP Other/Mixed46.31385 -120.0174 1/1 8/4/1999 15:30 -- 1.2 1.212/16/1999 11:00 -- 3.812NECNBR6805500Platte River at LouisvilleMixed41-96.22/45 –na6/17/1999 10:30 -- 5.1254.469CT CONN 1208500 Naugatuck R atBeacon Falls Mixed 41.4 -73.11/23 –3/7/1995 13:25 -- 2 2CT CONN 1196500 Quinnipiac Riverat Wallingford Urban 41.4 -72.81/25 –8/3/1995 9:30 -- 2 2CT CONN 1125100 French R at NGrosvenordale Mixed 42 -71.91/23 –6/11/1996 10:45 -- 4 4AK COOK 600715152572800Ef Ore C near Mth nearJohnson Gl near Tuxedni BayReference 60.12022 -152.96 1/1 7/25/2000 16:00 -- 1.640 1.6408/21/2000 13:30 -- 2.587UTGRSL404847111240501Silver Creek at WanshipRangeland40.81306-111.40142/23/13/2000 15:20 -- 8.4035.4953/10/2000 16:00 -- 3.237UTGRSL404431111282901Silver Creek near AtkinsonUrban40.74194-111.47472/28/16/2000 15:30 -- 4.2713.7545/16/2000 10:00 -- 2.0634/24/2000 12:00 -- 2.1856/12/2000 10:55 -- 2.201UT GRSL 404026111273001Silver Creek above RichardsonFlatRangeland 40.67678 -111.4613 4/58/16/2000 13:00 -- 2.8282.319UT GRSL 403938111300201Silver Cr at Bonanza Dr., ParkCityUrban 40.7 -111.51/28/16/2000 10:20 -- 1.432 1.4323/23/1999 11:00 -- 1.2322/23/1999 10:00 -- 1.314UTGRSL10168000Little Cottonwood Creek @Jordan River near SLCResidential40.7-111.92/49 –na12/22/1999 10:30 < 21.515UT GRSL 10130500 Weber River near Coalville Forest 40.9 -111.41/20 –3/21/2000 13:30 -- 1.576 1.576Appendix HICF InternationalH-7 DRAFT – December 2006Exhibit H-2. Dissolved Pb Measurements Exceeding 1.2 μg/Lat NAWQA Sampling StationsBetween 1994 and 2004 for First 25Study Units (1.2 μg/L = CCC at aWater Hardness of 50 mg/L as CaCO3)[Pb] (μg/L)StateStudyUnitIDStationIDPlace NameLand UseLatitudeLongitudeNo.[Pb] >1.2μg/L /Total NMeasurementDate and TimeSingle Meana6/19/2001 12:30 -- 1.5517/18/2001 9:45 -- 1.138RI NECB 1112900 Blackstone River at Manville Mixed 41.97121 -71.47006 1/38/28/2001 13:30 -- 0.621.551WA NROK 12424500Spokane River at 7-mile Bridgenr SpokaneUrban 47.7 -117.51/25 –na5/3/2000 12:45 -- 1.366 1.3664/3/2000 12:00 1.0284/28 4/3/2000 17:00 1.0286/3/1999 14:30 -- 1.233WANROK12422500Spokane River at SpokaneUrban47.65934-117.44916/3/1999 19:30 -- 1.2331.1314/5/2000 10:00 -- 1.158WA NROK 12422000Spokane River below Green Stat SpokaneUrban 47.7 -117.4 2/204/5/2000 15:00 -- 1.1581.15812/2/1999 8:50 -- 2.0913/17/1999 10:00 -- 2.4624/10/2000 13:15 -- 2.62/28/2000 11:00 -- 2.7415/27/1999 12:45 -- 2.78212/9/1998 12:10 -- 3.14/14/2000 13:15 -- 3.131IDNROK12413470SF Coeur D'Alene River nearPinehurstMining47.55159-116.237933/335/3/2001 13:00 -- 3.1644.6184Appendix HICF InternationalH-8 DRAFT – December 2006Exhibit H-2. Dissolved Pb Measurements Exceeding 1.2 μg/Lat NAWQA Sampling StationsBetween 1994 and 2004 for First 25Study Units (1.2 μg/L = CCC at aWater Hardness of 50 mg/L as CaCO3)[Pb] (μg/L)StateStudyUnitIDStationIDPlace NameLand UseLatitudeLongitudeNo.[Pb] >1.2μg/L /Total NMeasurementDate and TimeSingle Meana4/17/2000 13:15 -- 3.2333/23/1999 13:30 -- 3.4066/29/1999 13:00 -- 3.5633/27/2000 13:20 -- 3.7521/11/2000 14:30 -- 3.7935/2/2000 11:45 -- 3.7945/18/2000 10:00 -- 3.8393/14/2001 11:45 -- 4.3626/2/2000 9:30 -- 4.39312/18/2000 12:00 -- 4.4525/25/1999 12:45 -- 4.6199/8/1999 13:00 -- 4.8236/12/2001 12:30 -- 4.8994/10/2001 11:00 -- 5.1141/23/2001 14:30 -- 5.1924/20/1999 12:00 -- 5.3379/10/2001 11:30 -- 5.4326/29/2000 11:30 -- 5.5669/6/2000 14:00 -- 5.58711/6/2000 13:30 -- 5.6088/31/2000 12:15 -- 6.16410/19/1999 14:00 -- 6.2927/24/2000 13:00 -- 6.7747/26/1999 13:15 -- 8.721SF Coeur D'Alene River nearPinehurst (continued)11/4/1998 12:00 -- 11.62Appendix HICF InternationalH-9 DRAFT – December 2006Exhibit H-2. Dissolved Pb Measurements Exceeding 1.2 μg/Lat NAWQA Sampling StationsBetween 1994 and 2004 for First 25Study Units (1.2 μg/L = CCC at aWater Hardness of 50 mg/L as CaCO3)[Pb] (μg/L)StateStudyUnitIDStationIDPlace NameLand UseLatitudeLongitudeNo.[Pb] >1.2μg/L /Total NMeasurementDate and TimeSingle MeanaID NROK 12413150SF Coueur D'Alene River atSilvertonMining 47.55159 -116.2379 1/1 8/25/2000 10:00 -- 10.52 10.518ID NROK 12413123Canyon Creek at WoodlandParkMining 47.48854 -115.8904 1/1 8/23/2000 15:00 -- 29.78 29.77712/6/1994 10:05 -- 32/21/1995 9:15 < 211/2/1994 10:05 < 21/7/1995 9:40 < 2NVNVBR94196783Lv Wash below Flamingo Washconfluence near Las VegasUrban36.1-1151/19b1/10/1995 14:40 < 23aMean of samples greater than 1.2 μg/L or greaterthan the quantitation limit (QL), whichever is higher.bAt this station, there were fourteen samples less than aQL of 1 μg/L and four samples less than a QL of 2 μg/L.Appendix HICF InternationalH-10 DRAFT – December 2006Exhibit H-3. Dissolved Pb MeasurementsExceeding the CCC at NAWQA Sampling Stations with Soft Water (Hardness < 50 mg/Las CaCO3) between 1994 and 2004 for First 25 Study Units[Pb] (μg/L)StateStudyUnit IDStationIDPlace NameLand UseLatitudeLongitudeNo. [Pb] >CCC / Total NMeasurementDate and TimeSingle MeanaMixed 41.6 -73.1 1/21 - na7/9/2001 14:45 -- 0.635 0.635CTCONN1208049Naugatuck River near WatervilleCaCO3= 23.5 mg/L; CCC = 0.51 μg/L; 13 samples < 1 μg/L; 7 samples < CCC; 1 > CCC5/23/2001 10:40 -- 0.3296/6/2001 11:25 -- 0.422Mixed41.6-723/227/18/2001 9:50 -- 0.4720.408CTCONN1127000Quinebaug River at Jewett CityCaCO3= 17.4 mg/L; CCC = 0.36 μg/L; 14 samples < 1 μg/L; 5 samples < CCC; 3 > CCC9/24/2001 10:00 -- 0.39111/6/2000 11:20 -- 0.4095/21/2001 9:50 -- 0.4378/22/2001 9:30 -- 0.4557/16/2001 9:15 -- 0.6572/7/1995 10:35 -- 16/15/1995 9:40 -- 18/10/1995 9:15 -- 17/10/1996 9:15 -- 18/26/1996 9:15 -- 1Mixed42-7211/239/12/1996 9:15 -- 10.759CTCONN1124000Quinebaug River at QuinebaugCaCO3= 14.7 mg/L CCC = 0.30 μg/L; 9 samples < 1 μg/L; 3 samples < CCC; 11 > CCC1/22/2001 15:45 -- 0.215/20 9/12/2001 10:15 -- 0.21111/14/2000 11:05 -- 0.3496/25/2001 12:45 -- 0.363Mixed41.8-72.38/15/2001 12:50 -- 0.3770.302CTCONN1119375Willimantic River at MerrowCaCO3= 9.5 mg/L; CCC = 0.18 μg/L; 13 samples < 1 μg/L; 2 samples < CCC; 5 > CCCAppendix HICF InternationalH-11 DRAFT – December 2006Exhibit H-3. Dissolved Pb MeasurementsExceeding the CCC at NAWQA Sampling Stations with Soft Water (Hardness < 50 mg/Las CaCO3) between 1994 and 2004 for First 25 Study Units[Pb] (μg/L)StateStudyUnit IDStationIDPlace NameLand UseLatitudeLongitudeNo. [Pb] >CCC / Total NMeasurementDate and TimeSingle Meana5/3/2000 8:00 -- 1.579Mixed47.7-1172/265/7/2001 13:45 -- 0.4110.995IDNROK12419000Spokane River near Post FallsCaCO3= 17.9 mg/L; CCC = 0.37 μg/L; 16 samples < 1 μg/L; 8 samples < CCC; 2 > CCC11/9/2000 10:15 -- 0.1854/11/2001 11:15 -- 0.2525/4/2001 13:15 -- 0.196Forest48.2-116.24/176/14/2001 13:00 -- 0.2610.224IDNROK12392155Lightning Creek at Clark ForkCaCO3= 8.8 mg/L; CCC = 0.17 μg/L; 10 samples < 1 μg/L; 3 samples < CCC; 4 > CCCaMean of values greater than CCC.Appendix HICF InternationalH-12 DRAFT – December 2006Exhibit H-4. Dissolved Pb Measurements Exceeding 1.2 μg/Lat NAWQA Sampling Stations Between 1994 and 2004 for RemainingStudy Units (1.2 μg/L = CCC at aWater Hardness of 50 mg/L as CaCO3)[Pb] (μg/L)StateStudyUnitIDStationIDPlace NameLand Use Latitude LongitudeNo [Pb]> 1.2μg/L /Total NMeasurementDate and TimeSingle MeanaAR OZRK 7050500 Kings River near BerryvilleMixed 36.42599 -93.62319 1/8 6/6/1995 10:06--9 9MO OZRK 7018100 Big River near RichwoodsForest 38.1595 -90.70624 1⁄2 5/11/1995 12:00--7 7MO OZRK 7061135West Fork Black River at WestForkMining 37.49144 -91.09929 1/1 9/11/1995 15:15--11 11MO OZRK 7061155 Strother Creek near OatesMining 37.59005 -91.05485 1/1 9/19/1995 11:30-- 3 312/2/1994 10:15-25/12/1995 8:00-2NM RIOG 8317200Santa Fe River above CochitiLakeUrban 35.54698 -106.2286 3/38/2/1995 9:15-32.3NM RIOG 8331000 Rio Grande at Isleta Mixed 34.90589 -106.685 1/12 8/27/1996 13:00--3 311/19/1996 8:15 < 2TX RIOG 8364000 Rio Grande at ElPaso Mixed 31.80289 -106.54082/52 –na12/12/1996 9:00 < 2<2CA SACR 11447360 Arcade c near Del Paso HeightsUrban 38.64185 -121.38271/28-na 5/23/1997 13:10--1.27 1.27CO SPLT 6752260Cache La Poudre River at FortCollins Mixed 40.58915 -105.0697 1/4 7/26/1995 13:15-- 4 4CO SPLT 6752270Cahe La Poudre River below FortCollinsMixed 40.56693 -105.02721/4 7/21/1995 11:25--2 2CO SPLT 6752280Cahe La Poudre River r aboveBoxelder c, near TimnathMixed 40.55193 -105.01141/4 7/27/1995 12:50--3 3Appendix HICF InternationalH-13 DRAFT – December 2006Exhibit H-4. Dissolved Pb Measurements Exceeding 1.2 μg/Lat NAWQA Sampling Stations Between 1994 and 2004 for RemainingStudy Units (1.2 μg/L = CCC at aWater Hardness of 50 mg/L as CaCO3)[Pb] (μg/L)StateStudyUnitIDStationIDPlace NameLand Use Latitude LongitudeNo [Pb]> 1.2μg/L /Total NMeasurementDate and TimeSingle Meana5/12/1997 14:50-1.045/6/1999 10:20-1.1055/22/1997 13:45-1.146/10/1999 14:40-1.285/18/1999 10:05-1.3836/2/1998 8:20-1.468/11/1997 13:40-1.653/23/1998 11:45-1.685/7/1998 12:45-1.726/10/1998 11:15-1.73CO UCOL 9046530 French Gulch at Breckenridge Mining 39.49304 -106.0447 50/607/17/1997 12:15-1.83.714/26/1999 14:15-1.8036/3/1997 8:20-1.845/18/1998 14:25-1.877/28/1997 9:30-1.94/17/1996 8:25-25/9/1996 10:15-25/16/1996 13:50-26/21/1996 9:50-26/16/1998 11:30-27/29/1998 12:55-2.168/5/1998 12:00-2.278/18/1999 13:05-2.3156/12/1997 12:45-2.354/21/1998 12:55-2.414/6/1999 12:50-2.87Appendix HICF InternationalH-14 DRAFT – December 2006Exhibit H-4. Dissolved Pb Measurements Exceeding 1.2 μg/Lat NAWQA Sampling Stations Between 1994 and 2004 for RemainingStudy Units (1.2 μg/L = CCC at aWater Hardness of 50 mg/L as CaCO3)[Pb] (μg/L)StateStudyUnitIDStationIDPlace NameLand Use Latitude LongitudeNo [Pb]> 1.2μg/L /Total NMeasurementDate and TimeSingle Meana9/17/1998 15:05-2.995/22/1996 14:50-36/25/1996 12:00-37/18/1996 15:10-34/15/1999 11:45-3.2329/17/1999 15:10-3.7055/26/1996 8:20-49/16/1997 13:25-4.4711/19/1997 14:30-4.7510/8/1996 13:40-4.893/11/1999 10:15-4.9478/15/1996 9:30-59/9/1996 13:20-53/19/1998 15:15-5.3510/23/1997 13:55-5.4411/13/1996 11:05-612/15/1997 15:45 - 6.381/20/1999 14:25 - 6.939French Gulch at Breckenridge(continued)10/23/1995 13:20-711/21/1995 14:55-72/22/1996 11:20-71/20/1998 15:00-7.0212/13/1996 10:40-7.282/17/1998 12:45-7.361/19/1996 10:40-81/16/1997 9:45-8Appendix HICF InternationalH-15 DRAFT – December 2006Exhibit H-4. Dissolved Pb Measurements Exceeding 1.2 μg/Lat NAWQA Sampling Stations Between 1994 and 2004 for RemainingStudy Units (1.2 μg/L = CCC at aWater Hardness of 50 mg/L as CaCO3)[Pb] (μg/L)StateStudyUnitIDStationIDPlace NameLand Use Latitude LongitudeNo [Pb]> 1.2μg/L /Total NMeasurementDate and TimeSingle Meana2/21/1997 10:20 - 83/21/1996 13:20 < 13/19/1997 14:05 < 1French Gulch at Breckenridge(continued)4/18/1997 11:50 < 14/28/1997 11:15 < 15/27/1997 14:35 < 14/30/1999 10:00 < 17/8/1999 11:10 < 1CO UCOL 9146200Uncompahgre River nearRidgwayMining 38.18388 -107.74591/3 1/10/1996 13:47 < 2 <27/22/1997 8:00-20.26CO UCOL 375732107394000Red Mountain Creek aboveCrystal Lake near IrontonMining 37.95888 -107.6617 2/25/13/1996 16:40-2321.63CO UCOL 385437107015600Oh-Be-Joyful Creek at Mo nearCrested ButteMining 38.91027 -107.0328 1/1 7/29/1998 11:50--6.02 6.026/5/1996 14:50-17/28/1997 13:00 < 1CO UCOL 392907106013900French Gulch above GibsonGulchMining 39.48526 -106.02811/35/25/1996 13:45-225/22/1996 9:30-17/30/1997 13:00 < 1CO UCOL 392947106024500Blue River below French Gulchnear BreckenridgeMining 39.49638 -106.04641/310/25/1995 8:45-22CO UCOL 393557105512400Peru Creek at mouth nearMontezuma Mining 39.59915-105.8572 1/18/6/1998 8:00-- 1.26 1.264/28/1999 11:15 < 2WY YELL 6324970Little Powder River above DryCreek, near WestonRangeland 44.92693 -105.35332/37 -na9/12/2000 14:40 < 2<2aMean of values greater than 1.2 μg/L or greaterthan the quantitation limit (QL), whichever is higher.Appendix HICF InternationalH-16 DRAFT – December 2006Exhibit H-5. Dissolved Pb Measurements Exceeding CCC at NAWQASampling Stations with Soft Water (Hardness < 50 mg/L asCaCO3) Between 1994 and 2004 for Remaining Study Units[Pb] (μg/L)StateStudyUnitIDStationIDPlace NameLand Use Latitude LongitudeNo [Pb]> 1.2μg/L /Total NMeasurementDate and TimeSingle MeanaMixed 21.46072 -158.02421/2 6/20/2001 12:15 -- 0.3370.337HI OAHU 16212700Waikakalaua Str near Wahiawa,OahuCaCO3= 9 mg/L; CCC = 0.17 μg/L; one sample < 1 μg/L; one sample > CCC6/7/2001 8:20 E 0.971Other/Mixed 38.88944 -106.9973 1/48/30/2001 7:50 E 0.7130.971CO UCOL 385240106583600Slate River above Coal Creek nrCrested ButteCaCO3= 39 mg/L; CCC = 0.89 μg/L; two samples < 1 μg/L; one sample < CCC; one > CCCaMean of values greater than CCC.

## Appendix H

ICF International H-17 DRAFT – December 2006 

## H.3 Characteristics of Sampling Locati ons where Dissolved Pb Concentrations Exceed 1 

## EPA Ambient Water Quality Criteria for th e Protection of Aquatic Life and Their 2


## Uses 3

4 

## Exhibits H-6 through H-20 provide additional information charac terizing the fifteen sampling 5 

## sites in the NAWQA database wi th land use characterizations other than mining at which 6


## measured dissolved Pb concentrations exceeded the CCC, or AWQC. For each of the fifteen 7 

## sampling sites, four types of information are presented: 8

9


## 1. Site Information: The sampling location (s tate, county, basin study unit), stated land use 10 

## for the site (as of 1983), and a brief summary of the measured dissolved Pb 11 

## concentrations compared with the CCC are presented, along with the hazard quotient 12 

## (HQ) for the mean dissolved Pb concentra tion for samples that exceed the CCC. The 13 

## number of samples with dissolved Pb concen trations less than the CCC also is noted. 14

15


## 2. Land Use: More current data on the la nd uses surrounding the sampling sites were 16 

## obtained from the 1992 National Land Cover Data (MRLC 1992) for land uses within 20 17 

## km of each sampling site, if available. 18

19


## 3. Air Pb Emissions: The number of facilities that emit Pb to the ai r and the total annual 20 

## quantity of Pb emitted to the air, within 20 and 50 km of the sampling site were 21 

## determined from the 2002 National Emissions Inventory (USEPA 2006). The facility 22


## emissions to the air within 20 km are likel y much more important than the emissions 23 

## between 20 and 50 km. Data on non-point a nd mobile source emissions of Pb were 24 

## available only at the county level. 25

26


## 4. National Pollutant Discharge Elimination Syst em (NPDES): For each sampling site, the 27 

## watershed was examined to identify faciliti es in the NPDES database upstream of the 28 

## sampling site. For permitted facilities in the database, data are available on the 29 

## approximate distance to the sampling site, th e Pb permit levels or measurements if 30 

## available, and the name and type of facilit y. However, facilities identified by a Pb query 31 

## in NPDES, but without information provi ded on Pb limits, are also identified and 32


## included. 33

34 

## At the end of the exhibit for each sampling stat ion, there is a brief synopsis of conclusions 35 

## concerning the likelihood that aquatic risks ar e of concern and which sources are potentially 36 

## most responsible for the Pb levels measured at the sampling station. 37

38

39

40

41

42

43

44

45

46

## Appendix H

ICF International H-18 DRAFT – December 2006 

## Exhibit H-6. Station 7050500 in Arkansas 1 Sampling Site Information

State – Site ID – Land Use AR – 7050500 – Mixed
Dissolved Pb 8 samples: 7 < CCC; 1 > CCC; HQ = 3.46 Watershed, County OZRK, CARROLL

Place Name KINGS RIVER NEAR BERRYVILLE, AR



### Percent Land Use Within 20 km (from NLCD 1992)

Water Open Water 4.80% Low Intensity Residential 0.63% High Intensity Residential 0.22% Developed
Commercial/Industrial/Transportation 0.30% Bare Rock/Sand/Clay 0.04%
Quarries/Strip Mines/Gravel Pits 0.02% Barren

Transitional 0.21%

Deciduous Forest 32.05% Evergreen Forest 13.24% Forested Upland

Mixed Forest 11.88%

Shrubland Shrubland 0.59% Herbaceous Upland Grasslands/Herbaceous 0.03%
Pasture/Hay 34.25%
Row Crops 1.28%

Small Grains 0.03% Herbaceous Planted/Cultivated

Urban/Recreational Grasses 0.24%

Wetlands Woody Wetlands 0.16%



### Nearby Air Pb Emissions (from 2002 NEI)

Number of Facilities in 20 km 0 Emissions to Air within 20 km 0 tons/year

Number of Facilities in 50 km 2
Emissions to Air within 50 km 0.00509 tons/year
Emissions in county from mobile and non-point sources 0.00642 tons/year



## 2 Permit Discharge Information for Faciliti es Upstream of Sampling Site (from NPDES)

Facility name County Permit
Issued

By Approx.
Distance Upstream Type of Facility Notes



### BERRYVILLE
CITY OF WWTP CARROLL State 4 km SEWERAGE
SYSTEMS This facility resulted in a query for Pb discharges, but no permit info for Pb
was found.



## 3


## Conclusions: One of eight measurements of dissolve d Pb exceeded the CCC; for that site, the 4 

## HQ was 3.46. Two air Pb emission s ources are relatively far from the site and have relatively 5 

## low emissions. Pb might come from Berr yville waste water treatment plant (WWTP). 6

7

## Appendix H

ICF International H-19 DRAFT – December 2006 

## Exhibit H-7. Station 7018100 in Missouri a 

## 1 Sampling Site Information

State – Site ID – Land Use MO – 7018100 – Forest
Dissolved Pb 2 samples: 1 < CCC; 1 > CCC; HQ = 1.89 Watershed, County OZRK, JEFFERSON

Place Name BIG RIVER NEAR RICHWOODS MO



### Percent Land Use Within 20 km (from NLCD 1992)

Water Open Water 1.04%
Low Intensity Residential 0.76% High Intensity Residential 0.11% Developed Commercial/Industrial/Transportation 0.41% Bare Rock/Sand/Clay 0.02%
Quarries/Strip Mines/Gravel Pits 0.05%

Barren Transitional 0.04%

Deciduous Forest 65.91% Evergreen Forest 4.86% Forested Upland Mixed Forest 9.27%

Shrubland Shrubland 0.01%
Herbaceous Upland Grasslands/Herbaceous 1.71%

Herbaceous Planted/Cultiv ated Pasture/Hay 15.83%



### Nearby Air Pb Emissions (from 2002 NEI)

Number of Facilities in 20 km 0 Emissions to Air within 20 km 0 tons/year

Number of Facilities in 50 km 14 Emissions to Air within 50 km 0.344 tons/year

Emissions in county from mobile and non-point sources 0.0179 tons/year

a 

### There is no permit discharge information for Pb fr om facilities upstream of this sampling site in NPDES

. 

## 2
3


## Conclusions : The aquatic risk HQ is relatively low. It is possible that the numerous facilities 4 

## emitting Pb to air between 20 and 50 km from the station are contributing to the Pb concentration 5 

## in water. A small proportion (0.05 percent) of the land within 20 km of the sampling site is 6 

## designated as “quarries/strip mine s/gravel pits”; however, most su ch locations do not have metal 7 

## ores exposed. 8

## Appendix H

ICF International H-20 DRAFT – December 2006 

## Exhibit H-8. Station 8331000 in New Mexico 1 Sampling Site Information

State – Site ID – Land Use NM – 8331000 – Mixed
Dissolved Pb 12 samples; 11 < CCC; 1 > CCC; HQ = 1.03 Watershed, County RIOG, VALENCIA

Place Name RIO GRANDE AT ISLETA, NM



### Percent Land Use Within 20 km (from NLCD 1992)

Water Open Water 0.67%
Low Intensity Residential 4.81% High Intensity Residential 0.04% Developed
Commercial/Industrial/Transportation 3.33% Bare Rock/Sand/Clay 7.13% Barren Quarries/Strip Mines/Gravel Pits 0.19%

Deciduous Forest 0.23% Evergreen Forest 0.13% Forested Upland

Mixed Forest 0.01%

Shrubland Shrubland 52.32% Non-natural Woody Orchards/Vineyards/Other 0.14% Herbaceous Upland Grasslands/Herbaceous 24.20%
Pasture/Hay 3.39%
Row Crops 2.35%

Small Grains 0.00%

Fallow 0.00% Herbaceous Planted/Cultivated

Urban/Recreational Grasses 0.61% Woody Wetlands 0.44% Wetlands Emergent Herbaceous Wetlands 0.00%



### Nearby Air Pb Emissions (from 2002 NEI)

Number of Facilities in 20 km 1
Emissions to Air within 20 km 0.0678 tons/year

Number of Facilities in 50 km 6 Emissions to Air within 50 km 0.0945 tons/year

Emissions in county from mobile and non-point sources 0.0291 tons/year



## 2

## Appendix H

ICF International H-21 DRAFT – December 2006 1 Permit Discharge Information for Facilities Upstream of Sampling Site (from NPDES)

Facility Name a County Permit
Issued

By Approx.
Distance Upstream Type of Facility Pb Permit Limit Measured
Values



### SOUTHSIDE
WATER
RECLAMATION
PLANT BERNALILLO 13 km SEWERAGE
SYSTEMS Conc. Max: 840mg/kg Conc. Avg: 300mg/kg QNT Max: 300 kg/Ha

RIO RANCHO
CITY OF
WASTEWATER
FACILITIES SANDOVAL 40 km SEWERAGE
SYSTEMS Conc. Max: 840mg/kg Conc. Avg: 300mg/kg QNT Max: 300 kg/Ha

RIO GRANDE
PORTLAND
CEMENT
CORPORATION BERNALILLO 40 or 50 km (likely upstream,
hard to tell) CEMENT,
HYDRAULIC Conc. Max: ADDMON Conc. Avg: DELMON

a 

### Only facilities in the nearest counties (within a range of abou t 100 km along the river) were identified. Note that 

## 2 this sampling site is on the Rio Grande in New Mexico, and the watershed includes a large amount of land area. It is 

## 3 likely there are many discharges upriver of this point on the Rio Grande. 

## 4

5


## Conclusions: Only one of twelve samples exceeded the CCC, and for that sample, the HQ was 6 

## 1.03. Thus, aquatic risks at this location are marginal. There is one facility emitting Pb to air 7 

## within 20 km, but the quantity of Pb emitted is relativly low. There are only three permitted 8 

## discharges upstream of the sample site, none of which are likely to ha ve high levels of Pb. 9

10


## Exhibit H-9. Station 1112900 in Rhode Island 11 Sampling Site Information

State – Site ID – Land Use RI – 1112900 – Mixed
Dissolved Pb 3 samples: 3 > CCC; mean HQ = 2.51; max HQ = 3.53 Watershed, County NECB – PROVIDENCE

Place Name Blackstone River at Manville



### Percent Land Use Within 20 km (from NLCD 1992)

Water Open Water 2.44%
Low Intensity Residential 16.26% High Intensity Residential 2.69% Developed
Commercial/Industrial/Transportation 4.62% Bare Rock/Sand/Clay 0.04%
Quarries/Strip Mines/Gravel Pits 0.44% Barren

Transitional 0.14%

Deciduous Forest 41.94% Evergreen Forest 1.84% Forested Upland

Mixed Forest 14.57%

Shrubland Shrubland 0.06% Non-natural Woody Orchards/Vineyards/Other 0.09% Pasture/Hay 2.29%
Row Crops 3.50% Herbaceous Planted/Cultivated

Urban/Recreational Grasses 2.71% Woody Wetlands 4.30% Wetlands Emergent Herbaceous Wetlands 2.08%

## Appendix H

ICF International H-22 DRAFT – December 2006 Nearby Air Pb Emissions (from 2002 NEI)

Number of Facilities in 20 km 151 Emissions to Air within 20 km 4.07 tons/year

Number of Facilities in 50 km 284
Emissions to Air within 50 km 11.7 tons/year
Emissions in county from mobile and non-point sources 0.146 tons/year



## 1 Permit Discharge Information for Faciliti es Upstream of Sampling Site (from NPDES)

Facility Name County Permit
Issued

By Approx.
Distance Upstream Type of Facility Pb Permit
Limit Measured
Values Notes

HEALY
BROTHERS
CORP PROVIDENCE State At approx.

same location

as monitor. NONFERROUS FOUNDRIES,
EXCEPT
ALUMINUM
AND COPPER No info on Pb This facility resulted in a query for Pb discharges, but no permit info for Pb
was found.

NEW
ENGLAND
TREATMENT
COMPANY PROVIDENCE EPA 4 km SEWERAGE
SYSTEMS No info on Pb This facility resulted in a query for Pb discharges, but no permit info for Pb
was found.

ULTRAFINE
POWDER
TECHNOLOGY
INC PROVIDENCE State 4 km PRIMARY
METAL PRODUCTS,
NOT
ELSEWHERE
CLASSIFIED No info on Pb This facility resulted in a query for Pb discharges, but no permit info for Pb
was found.

WOONSOCKET
REGIONAL
WASTEWATER
COMMISSION PROVIDENCE State 4 km SEWERAGE
SYSTEMS No info on Pb This facility resulted in a query for Pb discharges, but no permit info for Pb
was found.

FAIRMONT
FOUNDRY
COMPANY PROVIDENCE State 5 km GRAY AND
DUCTILE IRON
FOUNDRIES No info on Pb This facility resulted in a query for Pb discharges, but no permit info for Pb
was found.

CUMBERLAND
FOUNDRY
COMPANY PROVIDENCE State 6 km GRAY AND
DUCTILE IRON
FOUNDRIES No info on Pb This facility resulted in a query for Pb discharges, but no permit info for Pb
was found.

HOPEDALE
WASTE
WATER
TREATMENT
PLANT WORCESTER EPA >10 and
< 40 km SEWERAGE
SYSTEMS Up to 150mg/kg

NORTHBRIDGE
WWTP WORCESTER EPA >10 and
< 40 km SEWERAGE
SYSTEMS Conc. Max:
40 μ g/L Daily Avg: DELMON
Min.:10 μ g/L Monthly Up to 65.4

μ g/L

UPPER
BLACKSTONE
WPAD WORCESTER EPA >10 and
< 40 km SEWERAGE
SYSTEMS Up to 150mg/kg Not in violation of permit

UPTON WWTF
UPGRADE AND
EXPANSION WORCESTER EPA >10 and
< 40 km SEWERAGE
SYSTEMS Conc. Max:
ADDMON Avg: DELMON ( μ g/L)

## Appendix H

ICF International H-23 DRAFT – December 2006 Permit Discharge Information for Faciliti es Upstream of Sampling Site (from NPDES)

Facility Name County Permit
Issued

By Approx.
Distance Upstream Type of Facility Pb Permit
Limit Measured
Values Notes

WYMAN
GORDON
COMPANY WORCESTER EPA >10 and
< 40 km NONFERROUS
FORGINGS Conc. Max:
ADDMON Avg:
ADDMON (mg/L) Up to .013 mg/L

WYMAN
GORDON
COMPANY WORCESTER EPA >10 and
< 40 km SECONDARY
SMELTING
AND REFINING
OF
NONFERROUS
METALS No info on Pb This facility resulted in a query for Pb discharges, but no permit info for Pb
was found.

BURRILLVILLE
WWTF PROVIDENCE State >10 and
< 40 km SEWERAGE
SYSTEMS No info on Pb This facility resulted in a query for Pb discharges, but no permit info for Pb
was found.

LANDFILL &
RESOURCE
RECOVERY INC. (L&RR) PROVIDENCE State >10 and
< 40 km REFUSE
SYSTEMS No info on Pb This facility resulted in a query for Pb discharges, but no permit info for Pb
was found.

a 

### Most of the Rhode Island facilities in NPDES do not have discharge data on Pb, even though they showed up as 

## 1 having Pb discharges in the query

. 

## 2

3 

## Conclusions: All three samples exceeded the CCC for Pb. The HQ for the mean of all three 4 

## samples is relatively low (2.5); the HQ for the ma ximum of the three samples was slightly higher 5 

## (3.5). There are 151 facilities that emit Pb to ai r within 20 km, and 284 facilities within 50 km, 6 

## but there also are some metal refining facilitie s upstream with NPDES permits that include Pb. 7 

## The proportion of land use within 20 km of the site with quarries, strip mine s, or gravel pits is 8 

## 0.44 percent. 9

10 

## Exhibit H-10. Station 12422500 in Washington State 11 Sampling Site Information

State – Site ID – Land Use WASHINGTON – 12422500 – Urban

Dissolved Pb 28 Samples: 24 < QL of 1 μg/L which is > CCC; 4 > CCC; mean HQ = 1.14; max HQ = 1.25 Watershed, County NROK, SPOKANE
Place Name Spokane River at Spokane

## Appendix H

ICF International H-24 DRAFT – December 2006 Percent Land Use Within 20 km (from NLCD 1992)
Water Open Water 1.10% Low Intensity Residential 13.47% High Intensity Residential 0.17% Developed Commercial/Industrial/Transportation 5.80% Bare Rock/Sand/Clay 0.24%

Barren Transitional 0.93%

Deciduous Forest 0.16% Evergreen Forest 23.17% Forested Upland Mixed Forest 0.81%

Shrubland Shrubland 17.11% Non-natural Woody Orchar ds/Vineyards/Other 0.20%
Herbaceous Upland Grasslands/Herbaceous 8.30%
Pasture/Hay 9.62%
Row Crops 0.06%

Small Grains 8.58%

Fallow 9.24%

Herbaceous Planted/Cultivated Urban/Recreational Grasses 0.89% Woody Wetlands 0.06%

Wetlands Emergent Herbaceous Wetlands 0.11%



### Nearby Air Pb Emissions (from 2002 NEI)

Number of Facilities in 20 km 7 Emissions to Air within 20 km 0.393 tons/year

Number of Facilities in 50 km 12
Emissions to Air within 50 km 0.427 tons/year

Emissions in county from mobile and non-point sources 0.239 tons/year 

## 1 2 Permit Discharge Information for Facilities Upstream of Sampling Site (from NPDES)

Facility Name County Permit
Issued

By Approx.
Distance Upstream Type of Facility Pb
Permit
Limit Measured
Values Notes



### WASTEWATER
TREATMENT PLANT (I) KOOTENAI (ID) EPA 40 km SEWERAGE
SYSTEMS No info
on Pb This facility resulted in a query for Pb discharges, but no permit info for Pb
was found.

WASTEWATER
TREATMENT PLANT (II) KOOTENAI (ID) EPA 50 km SEWERAGE
SYSTEMS No info
on Pb This facility resulted in a query for Pb discharges, but no permit info for Pb
was found.

HAYDEN
AREA
REGIONAL
SEWER
BOARD KOOTENAI (ID) EPA 50 km SEWERAGE
SYSTEMS No info
on Pb This facility resulted in a query for Pb discharges, but no permit info for Pb
was found.



## 3

## Appendix H

ICF International H-25 DRAFT – December 2006 

## Conclusions: Of 28 samples, 24 were below the de tection limit of 1 μg/L; however, the CCC 1 

## was 0.99 μg/L for the average wate r hardness of 36.3 mg/L as CaCO 3 

## at this site. Thus, the 24 2 

## samples are likely to be below the CCC. For the remaining four samples, the HQ for the mean 3 

## concentration was 1.1, and the HQ for the maxi mum concentration was 1.3, both of which are 4 

## relatively low. Thus, aquatic risks at this site ap pear to be relatively low. There are 7 facilities 5 

## emitting Pb to the air within 20 km, which may be contributing to the Pb in water. There also are 6 

## a few sewage systems upstream, but no metal refining facilities. 7

8


## Exhibit H-11. Station 600715152572800 in Alaska a 

## 9 Sampling Site Information

State – Site ID – Land Use ALASKA – 60071515 2572800 – Ref.
Dissolved Pb 1 sample; 1 > CCC; HQ = 15 Watershed – County COOK – Kenai Peninsula Borough

Place Name Ef Ore C near Mth near Johnson Gl near Tuxedni Bay



### Percent Land Use Within 20 km (from NLCD 1992) b



### Nearby Air Pb Emissions (from 2002 NEI)

Number of Facilities in 20 km 0 Emissions to Air within 20 km 0 tons/year

Number of Facilities in 50 km 0 Emissions to Air within 50 km 0 tons/year

Emissions in county from mobile and non-point sources 0.0999 tons/year

a 

### There is no permit discharge information for Pb from facilities upstream of this sampling site in NPDES. 

## 10

b 

### NLCD land use data are not available for Alaska. According to a USGS topographic map, the area 

## 11 appears to be glaciers and mountains. 

## 12
13 

## Conclusions: The single sample for dissolved Pb at this “reference” site measured 1.64 μg/L. 14 

## The HQ is relatively high (15) because the CCC fo r Pb at this location was calculated to be 0.11 15 

## μg/L due to the extremely soft water measurement (6 mg/L as CaCO 3 

## in a single measurement). 16 

## It is unknown whether the Pb in the water might co me from natural sources or from the mobile 17 

## and non-point sources within the county. If the Pb is from natural sources and the water is 18 

## always soft, it may be that the loca l biota are adapted to the conditions. 19

20

## Appendix H

ICF International H-26 DRAFT – December 2006 

## Exhibit H-12. Station 16212700 in Hawaii a 

## 1 Sampling Site Information

State – Site ID – Land Use HI – 16212700 – Mixed
Dissolved Pb 2 samples; 1 < CCC; 1 > CCC; 1 HQ = 1.98 Watershed, County OAHU, Honolulu

Place Name Waikakalaua Stream near Wahiawa, Oahu



### Percent Land Use Within 20 km (Land cover for year 2000 from NOAA) b



### Water 12.42%
High Intensity Developed 4.44% Low Intensity Developed 7.74%

Bare Land 1.60%

Unconsolidated Shore 0.20% Evergreen Forest 19.25%

Scrub/Shrub 35.34%

Grassland 11.52%

Cultivated Land 7.28%

Palustrine Forested Wetland 0.03%

Palustrine Scrub/Shrub Wetland 0.01% Palustrine Emergent Wetland 0.06%

Estuarine Forested Wetland 0.11%



### Nearby Air Pb Emissions (from 2002 NEI)

Number of Facilities in 20 km 9
Emissions to Air within 20 km 4.91 tons/year

Number of Facilities in 50 km 11 Emissions to Air within 50 km 4.91 tons/year

Emissions in county of monitor from mobile and non-point sources 0.491 tons/year

a 

### There is no permit discharge information for Pb from facilities upstream of this monitor in NPDES. 

## 2

b 

### NLCD for 1992 was not available for Hawaii. This year 2 000 data set did not include mining land use. 

## 3 However, a 1976 land cover data set analyzed showed that 0.02 percent of the land within 20 km was strip 

## 4 mining. 

## 5

6 

## Conclusions: There is an excellent chance that a ma jor source of the dissolved Pb at this 7 

## location is air deposition from th e nine facilities within 20 km discharging 4.91 tons of Pb per 8 

## year to the air. 9

## Appendix H

ICF International H-27 DRAFT – December 2006 1


## Exhibit H-13. Station 12422000 in Washington 2 Sampling Site Information

State – Site ID – Land Use WA – 12422000 – Urban

Dissolved Pb 20 samples; 18 < QL of 1 μg/L which is > CCC; 2 > CCC; mean and max HQ = 1.17 Watershed, County NROK, Spokane
Place Name Spokane River below Green Street at Spokane



### Percent Land Use Within 20 km (from NLCD 1992)

Water Open Water 0.75%
Low Intensity Residential 13.21% High Intensity Residential 0.17% Developed
Commercial/Industrial/Transportation 5.27% Bare Rock/Sand/Clay 0.20% Barren Transitional 0.71%

Deciduous Forest 0.16%
Evergreen Forest 22.33% Forested Upland

Mixed Forest 0.94%

Shrubland Shrubland 16.44% Non-natural Woody Orchards/Vineyards/Other 0.72% Herbaceous Upland Grasslands/Herbaceous 9.05% Pasture/Hay 12.44%
Row Crops 0.13%

Small Grains 8.53%

Fallow 8.04% Herbaceous Planted/Cultivated

Urban/Recreational Grasses 0.73% Woody Wetlands 0.06% Wetlands Emergent Herbaceous Wetlands 0.12%



### Nearby Air Pb Emissions (from 2002 NEI)

Number of Facilities in 20 km 8 Emissions to Air within 20 km 0.411 tons/year

Number of Facilities in 50 km 12
Emissions to Air within 50 km 0.427 tons/year
Emissions in county of monitor from mobile and non-point

sources 0.239 tons/year


## 3 Permit Discharge Information for Faciliti es Upstream of Sampling Site (from NPDES) a

Facility Name County Permit
Issued

By Approx.
Distance Upstream Type of Facility Pb
Permit
Limit Measured
Values Notes

WASTEWATER
TREATMENT PLANT (I) KOOTENAI (ID) EPA 35 km SEWERAGE
SYSTEMS No info
on Pb This facility resulted in a query for Pb discharges, but no permit info for Pb
was found.

WASTEWATER
TREATMENT PLANT (II) KOOTENAI (ID) EPA 45 km SEWERAGE
SYSTEMS No info
on Pb This facility resulted in a query for Pb discharges, but no permit info for Pb
was found.

## Appendix H

ICF International H-28 DRAFT – December 2006 Permit Discharge Information for Faciliti es Upstream of Sampling Site (from NPDES) a

Facility Name County Permit
Issued

By Approx.
Distance Upstream Type of Facility Pb
Permit
Limit Measured
Values Notes

HAYDEN AREA
REGIONAL
SEWER BOARD KOOTENAI (ID) EPA 45 km SEWERAGE
SYSTEMS No info
on Pb This facility resulted in a query for Pb discharges, but no permit info for Pb
was found.

a 

### All facilities in Shoshone County, Idaho listed for the 124 19000 sample in Idaho are also upstream of this monitor, but by more than 110 km.



## 1


## Conclusions: It is possible that a major source of the dissolved Pb at this location is air 2 

## deposition from the eight facilities within 20 km disc harging 0.411 tons of Pb per year to the air. 3

4


## Exhibit H-14. Station 12419000 in Idaho 5 Sampling Site Information

State – Site ID – Land Use ID - 12419000 – Mixed

Dissolved Pb 26 samples; 16 < QL of 1.0 μg/L which is > CCC; 8 < CCC; 2 > CCC; mean HQ = 2.69; max HQ = 4.27 Watershed, County NROK, Kootenai
Place Name Spokane River near Post Falls, ID



### Percent Land Use Within 20 km (from NLCD 1992)

Water Open Water 4.96% Low Intensity Residential 4.57%
High Intensity Residential 0.01% Developed
Commercial/Industrial/Transportation 2.17% Bare Rock/Sand/Clay 0.07% Barren Transitional 4.62%

Deciduous Forest 0.18% Evergreen Forest 39.54% Forested Upland

Mixed Forest 5.57%

Shrubland Shrubland 7.63% Non-natural Woody Orchards/Vineyards/Other 2.33% Herbaceous Upland Grasslands/Herbaceous 6.37% Pasture/Hay 10.04%
Row Crops 0.10%

Small Grains 5.68%

Fallow 5.72% Herbaceous Planted/Cultivated

Urban/Recreational Grasses 0.31%
Woody Wetlands 0.05% Wetlands Emergent Herbaceous Wetlands 0.06%



### Nearby Air Pb Emissions (from 2002 NEI)

Number of Facilities in 20 km 6 Emissions to Air within 20 km 0.342 tons/year

Number of Facilities in 50 km 13 Emissions to Air within 50 km 0.427 tons/year
Emissions in county of monitor from mobile and non-point

sources 0.597 tons/year

## Appendix H

ICF International H-29 DRAFT – December 2006 1 Permit Discharge Information for Faciliti es Upstream of Sampling Site (from NPDES) a

Facility Name County Permit
Issued

By Approx.
Distance Upstream Type of Facility Pb Permit
Limit Measured
Values Notes

WASTEWATER
TREATMENT PLANT (I) KOOTENAI (ID) EPA 3 km SEWERAGE
SYSTEMS No info on Pb This facility
resulted in a query for Pb discharges, but no permit info for
Pb was found.

WASTEWATER
TREATMENT PLANT (II) KOOTENAI (ID) EPA 15 km SEWERAGE
SYSTEMS No info on Pb This facility
resulted in a query for Pb discharges, but no permit info for
Pb was found.

HAYDEN AREA
REGIONAL
SEWER BOARD KOOTENAI (ID) EPA 15 km SEWERAGE
SYSTEMS No info on Pb This facility
resulted in a query for Pb discharges, but no permit info for
Pb was found.

Coeur Silver Valley Shoshone EPA between
100 and
130 km Pb AND ZINC
ORES max. conc.- 1.2 mg/L (daily) avg. conc.-.6 mg/L (monthly) max. conc.- .101 mg/L

avg. conc.- .055mg/L Data is for 3 pipes (2 have limits, 3rd is
ADDMON/ DELMON) data presented is
summed for 3 pipes.

Hecla Mining Co. Lucky Friday Mine
Unit Shoshone EPA between
100 and
130 km Pb AND ZINC
ORES max. conc.- .4 mg/L (daily) avg. conc.-. 2 mg/L (monthly) No apparent Pb discharge Two pipes (one
ADDMON/ ADDMON) no

measurements of Pb discharge
for either.

Hecla Mining Company Star
Phoenix Unit Shoshone EPA between
100 and
130 km Pb AND ZINC
ORES max. conc.- 1.086 mg/L (daily)

avg. conc.- .30 mg/L (monthly) max. conc.- .173 mg/L

avg. conc.- .08mg/L Values reported
are the sum of discharges from two pipes

Smelterville, City
of Shoshone EPA between
100 and
130 km SEWERAGE
SYSTEMS max. quantity- .18 lbs/day avg. quantity- .096 lbs/day

max conc. - 85 μ g/L (daily)

avg. conc.- 46 μ g/L (monthly) No Pb discharges reported.

South Fork, Coeur
D'Alene RSD Shoshone EPA between
100 and
130 km SEWERAGE
SYSTEMS max. quantity6.5 lbs/day

max conc.- 182 μ g/L (daily) avg.
conc.- 84 μ g/L (monthly) max .quantity3.8 lbs/dayavg. quantity3.8 lbs/day

max conc.- 40 μ g/L (daily) avg.
conc.- 40

μ g/L(monthly) Measured
values recorded were the highest
in the last 5

years.

## Appendix H

ICF International H-30 DRAFT – December 2006 Permit Discharge Information for Faciliti es Upstream of Sampling Site (from NPDES) a

Facility Name County Permit
Issued

By Approx.
Distance Upstream Type of Facility Pb Permit
Limit Measured
Values Notes

South Fork, Coeur
D'Alene RSD Shoshone between
100 and
130 km SEWERAGE
SYSTEMS max. conc.- ADDMON

avg.conc.- DELMON max. conc.- 11.7 μ g/kg Measured
values recorded were the highest
in the last 5

years.

Sunshine Mine Shoshone EPA between
100 and
130 km PRIMARY
SMELTING
AND
REFINING OF
NONFERROUS METALS,
EXCEPT
COPPER AND
ALUMINUM max. quantity12.8 lbs/dayavg. quantity6.4 lbs/day

max conc.- .550 mg/L (daily) avg.
conc.- .274 mg/L (monthly) max. quantity4.7 lbs/dayavg. quantity1.3 lbs/day

max conc.- .241 mg/L (daily) avg.
conc.- .115 mg/L (monthly) 4 pipes present, only one active
measured
values recorded were the highest
in the last 5

years.

Sunshine Precious
Metals Inc Shoshone EPA between
100 and
130 km SILVER ORES max. conc.- .6 mg/L (daily)

avg. conc.- .30 mg/L (monthly) No apparent Pb discharge

a 

### The facilities in Shoshone County are fairly far upstream from the sample , but seemed very relevant because of 

## 1 their large Pb discharges. 

## 2
3 

## Conclusions: Permitted discharges of Pb from four mining companies are likely to be the major 4


## source of dissolved Pb at this location. 5

6 

## Exhibit H-15. Station 12392155 in Idaho 7 Sampling Site Information

State – Site ID – Land Use ID - 12392155 – Forest

Dissolved Pb 17 samples; 10 < 1.0 μg/L which is > CCC; 3 < CCC; 4 > CCC; mean HQ = 1.32; max HQ = 1.54 Watershed, County NROK, Bonner
Place Name Lightning Creek at Clark Fork, ID

## Appendix H

ICF International H-31 DRAFT – December 2006 Percent Land Use Within 20 km (from NLCD 1992)

Water Open Water 13.27%
Low Intensity Residential 0.17% Developed Commercial/Industrial/Transportation 0.24% Bare Rock/Sand/Clay 1.44% Barren Transitional 2.55%

Deciduous Forest 0.10% Evergreen Forest 70.65% Forested Upland

Mixed Forest 0.83%

Shrubland Shrubland 5.05% Herbaceous Upland Grasslands/Herbaceous 2.96%
Pasture/Hay 2.05%

Small Grains 0.01%

Fallow 0.01% Herbaceous Planted/Cultivated

Urban/Recreational Grasses 0.01% Woody Wetlands 0.65% Wetlands Emergent Herbaceous Wetlands 0.00%



### Nearby Air Pb Emissions (from 2002 NEI)

Number of Facilities in 20 km 0 Emissions to Air within 20 km 0 tons/year

Number of Facilities in 50 km 1 Emissions to Air within 50 km 0.00153 tons/year
Emissions in county of monitor from mobile and non-point

sources 0.221 tons/year



## 1 Permit Discharge Information for Faciliti es Upstream of Sampling Site (from NPDES)

Facility
Name County Permit
Issued

By Approx.
Distance Upstream Type of Facility Pb Permit Limit Measured
Values Notes

Revett
Silver Company Sanders STATE 40 km COPPER
ORES avg. quantity- .074 lbs/hr max conc.- .098 mg/L (daily) avg. conc.- .064 mg/L (monthly) No apparent
Pb discharges


## 2


## Conclusions: The only likely source of the sporadic c oncentrations of dissolved Pb in excess of 3


## the CCC is the copper ore facility upstream and po ssibly Pb emissions to air from mobile and 4 

## non-point sources. This location is notable, howev er, for its very soft water (i.e., 8.8 mg/L as 5


## CaCO 3 

## ) and, as a result, the very low CCC value (i.e., 0.17 μg/L). The measured Pb 6


## concentrations that exceed this CCC are rela tively low (0.185 to 0.261 μg/L). Whether EPA’s 7 

## equation for relating the CCC to water hardness is valid at this extreme value of water hardness 8 

## (i.e., the lowest water hardness in the data set used to develop the CCC equation was 20 mg/L as 9


## CaCO 3 

## [USEPA 1984]) is unknown. 10

11

## Appendix H

ICF International H-32 DRAFT – December 2006 

## Exhibit H-16. Station 1127000 in Connecticut 1 Sampling Site Information

State – Site ID – Land Use CT - 1127000 – Mixed

Dissolved Pb 22 samples; 14 < QL of 1 μg/L which > CCC; 4 < CCC; 4 > CCC; mean HQ = 1.13; max HQ = 1.54 Watershed, County CONN, New London
Place Name Quinebaug River at Jewett City, CT



### Percent Land Use Within 20 km (from NLCD 1992)

Water Open Water 2.08%
Low Intensity Residential 4.14% High Intensity Residential 0.28% Developed
Commercial/Industrial/Transportation 1.81% Bare Rock/Sand/Clay 0.24%
Quarries/Strip Mines/Gravel Pits 0.11% Barren

Transitional 0.41% Forested Upland Deciduous Forest 51.79% Evergreen Forest 3.05%

Mixed Forest 12.79%

Shrubland Shrubland 0.04% Non-natural Woody Orchards/Vineyards/Other 0.07%
Pasture/Hay 7.58%
Row Crops 5.32% Herbaceous Planted/Cultivated

Urban/Recreational Grasses 2.27% Woody Wetlands 5.94% Wetlands Emergent Herbaceous Wetlands 2.08%



### Nearby Air Pb Emissions (from 2002 NEI)

Number of Facilities in 20 km 4 Emissions to Air within 20 km 6.11 tons/year

Number of Facilities in 50 km 57 Emissions to Air within 50 km 6.97 tons/year
Emissions in county of monitor from mobile and non-point

sources 0.139 tons/year



## 2 Permit Discharge Information for Facilities Upstream of Sampling Site (from NPDES)

Facility Name County Permit
Issued

By Approx.
Distance Upstream Type of Facility Pb Permit
Limit Measured
Values Notes

Jewett City WPCA New
London STATE approx

same location SEWERAGE
SYSTEMS max. conc.- ADDMON

avg. conc.- DELMON max. conc.- 43 mg/kg Measured values
recorded were the highest in the last 5

years.

Plainfield Village Stp Windham STATE 10 km SEWERAGE
SYSTEMS max. conc.- ADDMON

avg. conc.- DELMON max. conc.- 127 mg/kg Measured values
recorded were the highest in the last 5

years.

## Appendix H

ICF International H-33 DRAFT – December 2006 Permit Discharge Information for Facilities Upstream of Sampling Site (from NPDES)

Facility Name County Permit
Issued

By Approx.
Distance Upstream Type of Facility Pb Permit
Limit Measured
Values Notes

BST Systems Windham STATE 11 km max. quantity- .628 g/day avg. quantity- .299 g/day

max conc.- .166mg/L (daily) avg.

conc.- .079mg/L (monthly) max quantity- .095g/day

avg. quantity-
<.056 g/day Measured values
recorded were the highest in the last 5

years.

Plainfield North
Water Pollution Control Facility Windham STATE 15 km SEWERAGE
SYSTEMS max. conc.- ADDMON

avg. conc.- DELMON max. conc.- 34.5 mg/kg Measured values
recorded were the highest in the last 5

years.

Killingly WPCF Town
of Windham STATE 25 km SEWERAGE
SYSTEMS max. conc.- ADDMON

avg. conc.- DELMON max. conc.- 149 mg/kg Measured values
recorded were the highest in the last 5

years.

Delta Rubber Company Windham STATE 25 km SPECIAL
INDUSTRY MACHINERY,
NOT
ELSEWHERE
CLASSIFIED max. quantity32.3 g/dayavg. quantity10.7 g/day
max conc.- .5 mg/L (daily) avg. conc.- .1 mg/L (monthly) max. quantity- .2 g/day

avg. quantity- .2 g/day

max conc.- .002 mg/L (daily)

avg.

conc.- .079mg/L (monthly) Measured values
recorded were the highest in the last 5

years.

Exeter Energy Limited Partnership Windham STATE 25 km ELECTRIC
SERVICES max. conc.- ADDMON

avg. conc.- OPTMON max.

conc.- .27mg/L

avg. conc.- .1363 mg/L Measured values
recorded were the highest in the last 5

years.

Frito Lay Incorporated Windham STATE between
30 and 50
km No info on Pb This facility resulted in a query for Pb discharges, but no permit info for Pb
was found.

Lake Road Generating Co L.P. Windham STATE between
30 and 50
km max. conc.- .5 mg/L (daily) avg. conc.- .1 mg/L (daily) max.

conc.- .052 mg/L

avg. conc.- .041 mg/L Measured values
recorded were the highest in the last 5

years.

National Chromium Company Inc Windham STATE between
30 and 50
km max. conc.- .5 mg/L (daily) avg. conc.- .1 mg/L (daily) max.

conc.- .019 mg/L

avg. conc.- .0071 mg/L Measured values
recorded were the highest in the last 5

years.

Putnam Water
Pollution Control Facility Windham STATE between
30 and 50
km SEWERAGE
SYSTEMS max. conc.- ADDMON

avg. conc.- DELMON max. conc.- 49 mg/kg Measured values
recorded were the highest in the last 5

years.

## Appendix H

ICF International H-34 DRAFT – December 2006 Permit Discharge Information for Facilities Upstream of Sampling Site (from NPDES)

Facility Name County Permit
Issued

By Approx.
Distance Upstream Type of Facility Pb Permit
Limit Measured
Values Notes

Rogers Corporation Windham STATE between
30 and 50
km FLOOR
LAYING AND
OTHER
FLOOR WORK, NOT
ELSEWHERE
CLASSIFIED max. conc.- ADDMON

avg. conc.- ADDMON max. conc.- .001 mg/L

avg. conc.- .001 mg/L Measured values
recorded were the highest in the last 5

years.

Thompson WPCF Windham STATE between
30 and 50
km SEWERAGE
SYSTEMS max. conc.- ADDMON

avg. conc.- DELMON max. conc.- .93 mg/L Measured values
recorded were the highest in the last 5

years.

U.S. Button Corporation Windham STATE between
30 and 50
km max. quantity- .340 g/dayavg. quantityDELMON

max. conc.- .690 mg/L (daily)

avg. conc.- DELMON No measurements presented for Pb levels.

Wheelabrator
Putnam Inc Windham STATE between
30 and 50
km max. conc.- ADDMON

avg. conc.- DELMON max. conc.- .320 mg/L Measured values
recorded were the highest in the last 5

years. 

## 1


## Conclusions: It is possible that one major source of the dissolved Pb at this location is air 2 

## deposition from the 4 facilities with in 20 km discharging 6.11 tons of Pb per year to the air. 3 

## However, there also are many sewerage systems and industries with permitted discharges of Pb 4 

## upstream of this sampling locati on, including one discharge essentia lly at this location from the 5 

## Jewett City WPCA. 6

7


## Exhibit H-17. Station 1124000 in Connecticut 8 Sampling Site Information

State – Site ID – Land Use CT - 1124000 - Mixed

Dissolved Pb 23 samples; 9 < QL of 1 μg/L whic h is > CCC; 3 < CCC; 11 > CCC; mean HQ = 2.53; max HQ = 3.33 Watershed, County CONN, Windham
Place Name Quinebaug River at Quinebaug, CT

## Appendix H

ICF International H-35 DRAFT – December 2006 Percent Land Use Within 20 km (from NLCD 1992)

Water Open Water 3.86%
Low Intensity Residential 4.55% High Intensity Residential 0.33% Developed
Commercial/Industrial/Transportation 1.98% Bare Rock/Sand/Clay 0.25%
Quarries/Strip Mines/Gravel Pits 0.09% Barren

Transitional 0.33%

Deciduous Forest 41.39% Evergreen Forest 5.39% Forested Upland

Mixed Forest 20.29%

Shrubland Shrubland 0.07% Non-natural Woody Orchards/Vineyards/Other 0.12% Pasture/Hay 5.76%
Row Crops 5.26% Herbaceous Planted/Cultivated

Urban/Recreational Grasses 1.30% Woody Wetlands 6.81% Wetlands Emergent Herbaceous Wetlands 2.21%



### Nearby Air Pb Emissions (from 2002 NEI)

Number of Facilities in 20 km 8 Emissions to Air within 20 km 0.0809 tons/year

Number of Facilities in 50 km 161 Emissions to Air within 50 km 11.3 tons/year
Emissions in county of monitor from mobile and non-point sources 0.0924 tons/year



## 1 Permit Discharge Information for Facilities Upstream of Sampling Site (from NPDES)

Facility Name County Permit
Issued

By Approx.
Distance Upstream Type of Facility Pb
Permit
Limit Measured
Values Notes

Sturbridge
Water Pollution Control Facility Worcester EPA 15 km SEWERAGE
SYSTEMS No info
on Pb This facility resulted in a query for Pb discharges, but no permit info for Pb
was found.


## 2


## Conclusions: Although there are 8 facilities emitting Pb to air within 20 km of this sampling 3 

## location, the total annual Pb emissions are only 0.081 tons per year; however, considering a 50 4 

## km radius, there are 161 facilities emitting a total of 11.3 tons of Pb to the air per year. Other 5 

## possible sources of Pb nearby appear to be re latively minor (e.g., only one facility with an 6 

## NPDES permit that might include Pb upstream, relatively low emissions from non-point and 7 

## mobile sources). This location is nota ble for its soft water (14.8 mg/L as CaCO 3 

## ) and low CCC 8 

## value (0.30 μg/L). The measured Pb concentrati ons that exceed this CCC are relatively low (1 9 

## μg/L or lower). 10

11

## Appendix H

ICF International H-36 DRAFT – December 2006 

## Exhibit H-18. Station 1119375 in Connecticut 1 Sampling Site Information

State – Site ID – Land Use CT - 1119375 – Mixed

Dissolved Pb 20 samples; 13 < QL of 1 μg/L which is > CCC; 2 < CCC; 5 > CCC; mean HQ = 1.68; max HQ = 2.09 Watershed, County CONN, Tolland

Place Name WILLIMANTIC R AT MERROW, CT



### Percent Land Use Within 20 km (from NLCD 1992)

Water Open Water 1.79%
Low Intensity Residential 7.49% High Intensity Residential 0.60% Developed Commercial/Industrial/Transportation 2.05% Bare Rock/Sand/Clay 0.24%
Quarries/Strip Mines/Gravel Pits 0.07%

Barren Transitional 0.30%

Deciduous Forest 47.55% Evergreen Forest 2.49% Forested Upland Mixed Forest 14.09%

Shrubland Shrubland 0.05% Non-natural Woody Orchar ds/Vineyards/Other 0.07%
Pasture/Hay 5.65%
Row Crops 7.20%

Herbaceous Planted/Cultivated Urban/Recreational Grasses 2.11%
Woody Wetlands 5.95%

Wetlands Emergent Herbaceous Wetlands 2.31%



### Nearby Air Pb Emissions (from 2002 NEI)

Number of Facilities in 20 km 3 Emissions to Air within 20 km 0.68 tons/year

Number of Facilities in 50 km 57 Emissions to Air within 50 km 13.7 tons/year
Emissions in county of monitor from mobile and non-point

sources 0.0139 tons/year



## 2 Permit Discharge Information for Facilities Upstream of Sampling Site (from NPDES)

Facility Name County Permit
Issued

By Approx.
Distance Upstream Type of Facility Pb Permit
Limit Measured
Values Notes

T.A. Operating Corporation Tolland STATE 11 km COURIER SERVICES,
EXCEPT BY AIR max. conc.- ADDMON avg/conc.-
DELMON max. conc.- .0109 mg/L Measured
values recorded were the highest
in the last 5

years.

Stafford/WPCF Tolland STATE 17 km SEWERAGE
SYSTEMS max. quantity- .159 kg/day

avg. quantity- .07 kg/day max. quantity- .39 kg/day

avg. quantity- .18 kg/day Measured
values recorded were the highest
in the last 5

years.

## Appendix H

ICF International H-37 DRAFT – December 2006 Permit Discharge Information for Facilities Upstream of Sampling Site (from NPDES)

Facility Name County Permit
Issued

By Approx.
Distance Upstream Type of Facility Pb Permit
Limit Measured
Values Notes

Tyco Printed Circuit Group LP Tolland STATE 18 km max. conc.- .20 mg/L

avg. conc.- .10 mg/L No apparent
Pb discharge

Tyco Printed Circuit Group
Stafford Division Tolland STATE 18 km max. conc.- .70 mg/L

avg. conc.- .20 mg/L max. conc.- .0392 mg/L

avg. conc.- .0192 mg/L Values were
summed for two pipes.

Warren Corporation Tolland STATE 18 km max. conc.- .50 mg/L

avg. conc.- .10 mg/L No apparent
Pb discharge



## 1


## Conclusions : It is possible that one major source of di ssolved Pb at this location is air emissions 2 

## deposition from the 3 facilities within 20 km em itting 0.68 tons of Pb per year to the air. 3 

## Considering a 50 km radius around the sampling site instead, there are a to tal of 57 facilities 4 

## emitting a total of 13.7 tons of Pb per year to the air, which is relatively high. There are also 5 

## several NPDES permitted discharges upstream of the site. 6

7

## Appendix H

ICF International H-38 DRAFT – December 2006 

## Exhibit H-19. Station 385240106583600 in Colorado a 

## 1 Sampling Site Information

State – Site ID – Land Use CO – 385240106583600– Other/Mixed

Dissolved Pb 4 samples; 2 < QL of 1 μg/L which is > CCC; 1 < CCC; 1 > CCC; HQ = 1.09 Watershed, County UCOL, Gunnison

Place Name Slate River above Coal Creek near Crested Butte



### Percent Land Use Within 20 km (from NLCD 1992)

Open Water 0.12% Water Perennial Ice/Snow 1.49% Low Intensity Residential 0.13% High Intensity Residential 0.01% Developed
Commercial/Industrial/Transportation 0.05% Bare Rock/Sand/Clay 9.20% Barren Transitional 0.02%

Deciduous Forest 16.66%
Evergreen Forest 32.66% Forested Upland

Mixed Forest 1.25%

Shrubland Shrubland 5.35% Herbaceous Upland Grasslands/Herbaceous 31.00% Pasture/Hay 1.94%
Row Crops 0.11%

Small Grains 0.01% Herbaceous Planted/Cultivated

Urban/Recreational Grasses 0.00%



### Nearby Air Pb Emissions (from 2002 NEI)

Number of Facilities in 20 km 0 Emissions to Air within 20 km 0 tons/year

Number of Facilities in 50 km 1
Emissions to Air within 50 km 2.86E-04 tons/year
Emissions in county of monitor from mobile and non-point

sources 0.0355 tons/year

a 

### There is no permit discharge information for Pb fr om facilities upstream of this monitor in NPDES. 

## 2
3 

## Conclusions : The aquatic risks at this location appear to be minimal, with only one measurement 4


## of dissolved Pb that exceeded the CCC and an HQ of 1.09. There are no obvious sources of Pb 5 

## to this location, other than the possibly natural sources and mobile and non-point sources in the 6 

## county. 7

8

## Appendix H

ICF International H-39 DRAFT – December 2006 

## Exhibit H-20. Station 404847111240501 in Utah 1 Sampling Site Information

State – Site ID – Land Use UT – 404847111240501 – Rangeland
Dissolved Pb 2 samples; 1 < CCC; 1 > CCC; HQ = 1.45 Watershed, County GRSL, Summit
Place Name Silver Creek at Wanship, UT



### Percent Land Use Within 20 km (from NLCD 1992)

Water Open Water 0.72% Low Intensity Residential 0.29% Developed Commercial/Industrial/Transportation 0.53% Bare Rock/Sand/Clay 0.03% Barren Quarries/Strip Mines/Gravel Pits 0.06%

Deciduous Forest 22.77% Evergreen Forest 20.52% Forested Upland

Mixed Forest 8.37%

Shrubland Shrubland 32.93% Non-natural Woody Orchards/Vineyards/Other 0.00% Herbaceous Upland Grasslands/Herbaceous 8.63%
Pasture/Hay 4.73%

Small Grains 0.00% Herbaceous Planted/Cultivated

Urban/Recreational Grasses 0.23% Woody Wetlands 0.00% Wetlands Emergent Herbaceous Wetlands 0.17%



### Nearby Air Pb Emissions (from 2002 NEI)

Number of Facilities in 20 km 0
Emissions to Air within 20 km 0 tons/year

Number of Facilities in 50 km 27 Emissions to Air within 50 km 0.358 tons/year

Emissions in county of monitor from mobile and non-point

sources 0.108 tons/year



## 2 Permit Discharge Information for Facilities Upstream of Sampling Site (from NPDES)

Facility
Name County Permit
Issued

By Approx.
Distance Upstream Type of Facility Pb Permit Limit Measured Values Notes

Gear Systems Incorporated Summit STATE 13 km ELECTROPLATING, PLATING, POLISHING, ANODIZING, AND
COLORING max conc. (daily)- 1.38 mg/L avg. conc. (monthly)-.86 mg/L Pipe 001- <.007mg/L (per day); Pipe 002- Max seen (per day)- .14 mg/L Limit levels are
summed for 2 pipes (each have equal limit levels). 

## 3


## Conclusions: It appears unlikely that air emissions are a major source of Pb at this location; it 4 

## may be that the Pb discharges from the NPDES-pe rmitted facility 13 km upstream of this site is 5


## the source of most of the Pb to this location. 6

7

## Appendix H

ICF International H-40 DRAFT – December 2006 

## References 1

2 

## Multi-Resolution Land Characteristics (MRLC) Consortium. (1992) 1992 National Land Cover 3 

## Dataset. U.S. Department of the Interi or, U.S. Geological Su rvey. Available at 4 

## http://www.mrlc.gov/index.asp 5

6 

## U.S. Environmental Protection Agency (USEPA). (1984) Ambient Water Quality Criteria for 7


## Lead - 1984. Washington, DC: Office of Water Regul ations and Standa rds, Criteria and 8


## Standards Division. EPA 440/5-B4-027. Available at 9 

## http://yosemite.epa.gov/water/owrccata log.nsf/065ca07e299 b464685256ce50075c11a/05edf009d 10 

## cde1d7d85256b060072307e!OpenDocument 11

12 

## U.S. Environmental Protection Agency (USEPA ). (2006) 2002 National Emissions Inventory 13 

## Data & Documentation, Final Version 1 Release. February. Available at 14 

## http://www.epa.gov/ttn/chie f/net/2002inventory.html 15

# Appendix I

Input Parameter Values Used in the Blood Pb Modeling

## Appendix I

ICF International I-1 DRAFT – December 2006 

## This appendix includes a discussion of the Integrated Exposure Uptake Biokinetic Model for Children (hereafter referred to as the IEUBK model) and the International

Commission for Radiation Prot ection (ICRP) model (hereafter referred to as the Leggett model). The IEUBK and Leggett models (USEPA 1994 and Leggett 1993) were used to calculate geometric mean blood Pb concentra tions for children living in each of the census blocks or block groups included in the case studies. Detailed tables of the inputs used in the IEUBK and Leggett models are in cluded in this Appendix. Policy-relevant exposure concentration inputs to the models included time-av eraged air Pb levels and

estimated soil and house dust Pb concentrations. Derivati on of exposure concentration estimates were described in Chapter 4 and tabulated in Appendix F. See Chapter 5 for a more detailed discussion of the structure of the IEUBK and Leggett models.

## Appendix I

ICF International I-2 DRAFT – December 2006 

## I.1 IEUBK Model

In addition to exposure concentrations and diet ary Pb intake/uptake va lues, the IEUBK model requires a range of input parame ter values that characterize the relationships between Pb exposure, intake, and uptake (absorbed dose). Th ese values serve as inputs to equations that calculate Pb absorption from the various e xposed media into the blood/extracellular fluid compartment of the model. Exhibit I-1 provides va lues for all of the parameters that were used

in the IEUBK model for the three case studies. The derivation of these values is also discussed

in Section 5.1.4.

Exhibit I-1. Input Paramete r Values for the IEUBK Model

Parameter Value

IEUBK Default Age Ranges (Years)

Parameter IEUBK
Parameter

Name0.5 to 11 to 22 to 33 to 44 to 55 to 66 to 7 

### Basis/Derivation

Inhalation

Daily
ventilation rate (m3/day) Ventilation
rate 4 5.1 6 6.8 7.8 8.8 10 ICRP (2002), with interpolation for intermediate ages.

Absolute
inhalation absorption

fraction (unitless) Lung absorption 0.42 (Primary, secondary smelter), 0.32 (Near Roadway Urban) Smelter value: USEPA (1989), Appendix A
IEUBK value: USEPA (1989), central tendency value from analysis of deposition data.

Indoor air Pb
concentration Indoor air Pb
concentration (percentage of outdoor) 100%

Time spent

outdoors Time spent
outdoors (hours/day) Not used Time spent
indoors/outdoors is not
considered because the input air concentrations are already long-term weighted averages of indoor and
outdoor concentrations.

## Appendix I

ICF International I-3 DRAFT – December 2006 

## Exhibit I-1. Input Paramete r Values for the IEUBK Model

Parameter Value

IEUBK Default Age Ranges (Years)

Parameter IEUBK
Parameter

Name0.5 to 11 to 22 to 33 to 44 to 55 to 66 to 7 

### Basis/Derivation

Drinking Water Ingestion

Water consumption (L/day) Water consumption (L/day) 0.34 0.31 0.31 0. 33 0.36 0.39 0.42 Based on value for infants, 1 to 3 yr olds, 1 to10 yr olds (with trend lines used to interpolate intermediate age ranges) (USEPA 2002).

Water Pb
concentration ( μ g/L) Pb
concentration

in drinking water ( μ g/L) 4.61 GM of values reported in
studies of United States and Canadian populations (residential water) (Moir et al. 1996, Clayton et al. 1999, as cited in USEPA (2006), Section 3.3 Table 3- 10).

Absolute absorption (unitless) Total percent
accessible 50% (Single value used across all age ranges) Assumed similar to dietary absorption (see "Total percent accessible" under Ingestion-Diet below).

Other drinking

water parameters First-draw,
flushed drinking water
concentrations Not used Water Pb concentration
assumed to be representative of children’s
Pb intake.

Diet

Dietary Pb intake ( μ g/day) Daily Pb
intake ( μ g/day) 3.16 2.6 2.87 2. 74 2.61 2.74 2.99 Estimates based on (a) Pb
food residue data from U.S. Food and Drug
Administration Total Diet Study (USFDA 2001), and (b) food consumption data from NHANES III (CDC 1997).

Absolute absorption (unitless) Total percent
accessible 50% Alexander et al. (1974) and Ziegler et al. (1978), as
cited in USEPA 2006 (Section 4.2.1). These two dietary balance studies suggest that 40-50% of ingested Pb is absorbed by children (2 weeks to 8 years of age).

Other diet parameters Use
alternative

dietary
values? No Daily Pb intake is assumed to include all food groups.

## Appendix I

ICF International I-4 DRAFT – December 2006 

## Exhibit I-1. Input Paramete r Values for the IEUBK Model

Parameter Value

IEUBK Default Age Ranges (Years)

Parameter IEUBK
Parameter

Name0.5 to 11 to 22 to 33 to 44 to 55 to 66 to 7 

### Basis/Derivation

Soil/Indoor Dust Ingestion

Soil/dust weighting

factor (unitless) Soil/dust ingestion weighting factor (percent soil) 45% This is the percent of total ingestion that is soil. Value reflects best judgment and consideration (results published by van Wijnen et al. (1990), as cited in (USEPA 1989). The van Wijnen et al. study looked at tracer studies of ingestion rates for rainy days and non –rainy days. It was assumed that rainy days
were associated with all soil ingestion and non-rainy days were associated with a
combination of soil and dust with the delta representing
soil.

Total dust + soil ingestion

(mg/day) Amount of
soil/dust ingested daily (mg) 85 135 135 135 100 90 85 USEPA 1989, which was based on multiple studies focusing on children.

## Appendix I

ICF International I-5 DRAFT – December 2006 

## Exhibit I-1. Input Paramete r Values for the IEUBK Model

Parameter Value

IEUBK Default Age Ranges (Years)

Parameter IEUBK
Parameter

Name0.5 to 11 to 22 to 33 to 44 to 55 to 66 to 7 

### Basis/Derivation

Soil/Indoor Dust Ingestion (Continued)

Absolute gastrointestinal

absorption (soil and dust) (unitless) Total percent
accessible · Primary Pb smelter case study: 0.48 for soil
and 0.26 for dust

· Secondary Pb smelter and near roadway:
0.30 for both soil and dust · Site specific absorption
factors for soil and indoor
dust were derived for the primary Pb smelter case study using relative bioavailability (RBA) estimates generated based on swine studies involving soil and dust samples collected in the study area (Casteel et al. 2005).
These RBAs were
converted to absolute bioavailability factors (i.e., total percent accessible values) by applying the absolute bioavailability
factor for the control material (Pb acetate water
solution also fed to the animals).

· Secondary Pb smelter and near roadway values: USEPA (1989) reflects
evidence that Pb in dust
and soil is as accessible as dietary Pb and that dust/soil ingestion may occur away from mealtimes (resulting in enhanced absorption relative to exposure during meal events).

Other soil/dust ingestion parameters Multiple

source analysis No Soil and house dust
concentrations were
modeled external to the
IEUBK model.

Other

Maternal blood

Pb ( μ g/dL) Maternal
blood Pb
concentration at childbirth, μg/dL 1.94 NHANES IV, national GM
for adult women – all nationalities (CDC 2004).

Fraction passive/total
accessible 20 Passive-active uptake parameters Half saturation level, μg/day 100 IEUBK default values were
used.

## Appendix I

ICF International I-6 DRAFT – December 2006 

## I.2 Leggett Model

The Visual Basic® adaptation of the Leggett m odel includes a multi-pathway intake and uptake

module as described in Section 5.1.3.3. The follo wing policy-relevant exposure concentrations are read from a spreadsheet into the model and se rve as the basis for calc ulating concurrent and lifetime average blood Pb concentrations for each block level or block group:

• BRETH (modeled inhalation e xposure concen tration);

• SOILPB (soil dust Pb concentration); and

• DUSTPB (house dust Pb concentration).

The Leggett concentration input/output spreadsheet se rved as the input sheet for the probabilistic blood Pb and IQ model. After concurrent and lifetime average blood Pb concentrations were calculated for each block group, the values were out put back into the appr opriate rows of the spreadsheet and used in the Monte Carlo simulation to generate blood Pb and IQ distributions.

In addition to exposure concentrations, the Leggett model also accepts essentially the same set of input parameters as those used in the IEUBK model. The inten tion was to have the Pb uptake (absorbed dose) calculated by the Leggett model for each age group equal to the Pb uptake calculated by the IEUBK model for the same age group, given the same set of exposure concentrations. A section of a Leggett model inputparameter spreadsheet is shown in Exhibit I2. Most of the parameters take the same values as the analogous IEUBK inputs shown in Exhibit I-1. One difference is that the age-specific i nputs in the Leggett model are stratified into narrower age ranges than the IEUBK values. In the batch version of the Leggett model, input values are defined for age ranges 0 to 100 days (0.274 years), 100 days to 6 months, and then values are specified every tenth of a year thr ough the age of 5 years, when the stratification reverts to 0.25 years per age group. This strati fication was originally intended to provide a smoother transition between age groups with regard to biokinetic parameter values, especially in younger children. However, in the current versio n of the model, exposure parameters for each age range are set at the identical (or equivalent) values as those us ed in the IEUBK runs, in order to match absorbed dose estimates as closely as possi ble, at the expense of some discontinuities in the output blood Pb profiles.

The variables included in the Leggett input parameter spreadsh eet that use the same age-specific

values as shown in Exhibit I- 1 for the IEUBK model are:

• CHAGE (age ranges);

• AFI (dietary absorption fractions);

• H2OAF (gastrointestinal absorption fractions);

• EAT (background dietary Pb intake estimates);

• H20CONC (drinking wate r concentration);

• RESVOL (age-specific respiratory volumes); and

• AFLUNG (absorption fraction fo r inhalation exposure).

## Appendix I

ICF International I-7 DRAFT – December 2006 

## The variables listed belo w are included in the Leggett input parameter spreadsheet, but are handled somewhat differently in the IEUBK model:

• SOILING (estimated daily soil ingestion rate);

• DUSTING (estimated daily dust ingestion rate);

• SOILBIO (soil bioavailability);

• DUSTBIO (dust bioavailability);

• SOILAF (gastrointestinal absorption fraction value for soil); and

• DUSTAF (gastrointestinal absorp tion fraction value for dust).

SOILING and DUSTING are calculated in th e input parameter spreadsheet from the corresponding IEUBK inputs relating to total dust + soil ingestion and the soil/dust weighting factor. The Leggett model includes SOILBIO, DUSTBIO, SOILAF, and DUSTAF parameters. In contrast, the IEUBK model characterizes Pb absorption from ingested soil and dust on the basis of one parameter (Total Percent Available) . In Exhibit I-2, SOILBIO and DUSTBIO have been set to 1.0 (100 percent) a nd the SOILAF and DUSTAF have b een set to 0.3 (30 percent) to match the IEUBK “Total Percent Available” inpu t value of 30 percent, even though 100 percent bioavailability from soil and dust is unlikely. The SOILAF and DUSTAF values, while they can be varied with age, are held constant at 0.30 acro ss all age groups (the input file extracted in Exhibit I-2 is from the secondary Pb smelte r case study). SOILBIO and DUSTBIO values are not treated as age-specific in the batch Leggett model.

The input parameter spreadsheet also incl udes the same estimated maternal blood Pb

concentration as is used in the IEUBK modeli ng (1.94 μg/dL) and the default maternal-fetal blood Pb ratio specified in the Leggett code. Th e spreadsheet also includes model inputs related to the use of a non-linear (saturable) model fo r red blood cell Pb absorption, which is analogous to the saturable uptake model in the IEUBK mode l. The non-linear blo od Pb model parameter

values in Exhibit I-2 are th e defaults by Leggett (1993).

During this analysis, it was found that the form of the red blood cell model that is specified makes very little difference to the predicted blood Pb profiles, given the relatively low blood Pb intakes predicted for almost all e xposed children in the case studies.Appendix I0 0.274 0.5 0.6 0.7 0.8 0.9AFIIngestion absorption fraction (absolute)0.5 0.5 0.5 0.5 0.5 0.5 0.5RESVOLRespiratory volume (m3/day)4444444AFLUNG Inhalation absorption fraction (absolute) 0.42 0.42 0.42 0.42 0.42 0.42 0.42CHRDirect intake to bloodstream (μg/day)0000000BRETHAir concentration (μg/m3)0.05 0.05 0.05 0.05 0.05 0.05 0.05EAT Pb content in non-water diet (μg/day) 3.16 3.16 3.16 3.16 3.16 3.16 3.16H20CONS Water consumption (L/day) 0.34 0.34 0.34 0.34 0.34 0.34 0.325H20CONCPb concentration in drinking water (μg/L)4.61 4.61 4.61 4.61 4.61 4.61 4.61H20AF Absorption fraction for drinking water (abs) 0.5 0.5 0.5 0.5 0.5 0.5 0.5DUSTING Household dust ingestion (g/day) 0.04675 0.04675 0.04675 0.04675 0.04675 0.04675 0.04675DUSTAF Dust absorption fraction (relative to soluble) 0.3 0.3 0.3 0.3 0.3 0.3 0.3DUSTPB Dust Pb concentration (μg/g)0000000SOILING Soil ingestion (g/day) 0.03825 0.03825 0.03825 0.03825 0.03825 0.03825 0.03825SOILAF Soil absorption fraction (relative to soluble) 0.3 0.3 0.3 0.3 0.3 0.3 0.3SOILPB Soil Pb concentration (μg/g)0000000SOILBIO Soil bioavailability1111111DUSTBIO Dust bioavailability1111111IFETAL Flag to include fetal exposure1111111BLDMOTMaternal blood Pb (μg/dL)1.94 1.94 1.94 1.94 1.94 1.94 1.94BRATIORatio of maternal to fetal blood0.85 0.85 0.85 0.85 0.85 0.85 0.85IRBC Use non-linear RBC model1111111RBCNL Non-linear RBC model threshold (μg/day) 60 60 60 60 60 60 60SATRATNon-linear RBC model coefficient350 350 350 350 350 350 350POWERNon-linear RBC model power1.5 1.5 1.5 1.5 1.5 1.5 1.5Exhibit I-2. Example Leggett Model Input ParametersBiokinetic Input Parameters by Age Endpoints (CHAGE)(years)DescriptionParameterICF International I-8 DRAFT – December 2006Appendix I1 1.1 1.2 1.3 1.4 1.5 1.6AFIIngestion absorption fraction (absolute)0.5 0.5 0.5 0.5 0.5 0.5 0.5RESVOLRespiratory volume (m3/day)5.1 5.1 5.1 5.1 5.1 5.1 5.1AFLUNG Inhalation absorption fraction (absolute) 0.42 0.42 0.42 0.42 0.42 0.42 0.42CHRDirect intake to bloodstream (μg/day)0000000BRETHAir concentration (μg/m3)0.05 0.05 0.05 0.05 0.05 0.05 0.05EAT Pb content in non-water diet (μg/day) 2.6 2.6 2.6 2.6 2.6 2.6 2.6H20CONS Water consumption (L/day) 0.31 0.31 0.31 0.31 0.31 0.31 0.31H20CONCPb concentration in drinking water (μg/L)4.61 4.61 4.61 4.61 4.61 4.61 4.61H20AF Absorption fraction for drinking water (abs) 0.5 0.5 0.5 0.5 0.5 0.5 0.5DUSTING Household dust ingestion (g/day) 0.07425 0.07425 0.07425 0.07425 0.07425 0.07425 0.07425DUSTAF Dust absorption fraction (relative to soluble) 0.3 0.3 0.3 0.3 0.3 0.3 0.3DUSTPB Dust Pb concentration (μg/g)0000000SOILING Soil ingestion (g/day) 0.06075 0.06075 0.06075 0.06075 0.06075 0.06075 0.06075SOILAF Soil absorption fraction (relative to soluble) 0.3 0.3 0.3 0.3 0.3 0.3 0.3SOILPB Soil Pb concentration (μg/g)0000000SOILBIO Soil bioavailability1111111DUSTBIO Dust bioavailability1111111IFETAL Flag to include fetal exposure1111111BLDMOTMaternal blood Pb (μg/dL)1.94 1.94 1.94 1.94 1.94 1.94 1.94BRATIORatio of maternal to fetal blood0.85 0.85 0.85 0.85 0.85 0.85 0.85IRBC Use non-linear RBC model1111111RBCNL Non-linear RBC model threshold (μg/day) 60 60 60 60 60 60 60SATRATNon-linear RBC model coefficient350 350 350 350 350 350 350POWERNon-linear RBC model power1.5 1.5 1.5 1.5 1.5 1.5 1.5Biokinetic Input Parameters by Age Endpoints (CHAGE)Exhibit I-2. Example Leggett Model Input ParametersDescriptionParameter(years)ICF International I-9 DRAFT – December 2006Appendix I1.7 1.8 1.9 2 2.1 2.2 2.3AFIIngestion absorption fraction (absolute)0.5 0.5 0.5 0.5 0.5 0.5 0.5RESVOLRespiratory volume (m3/day)5.1 5.1 5.1 6 6 6 6AFLUNG Inhalation absorption fraction (absolute) 0.42 0.42 0.42 0.42 0.42 0.42 0.42CHRDirect intake to bloodstream (μg/day)0000000BRETHAir concentration (μg/m3)0.05 0.05 0.05 0.05 0.05 0.05 0.05EAT Pb content in non-water diet (μg/day) 2.6 2.6 2.6 2.87 2.87 2.87 2.87H20CONS Water consumption (L/day) 0.31 0.31 0.31 0.31 0.31 0.31 0.31H20CONCPb concentration in drinking water (μg/L)4.61 4.61 4.61 4.61 4.61 4.61 4.61H20AF Absorption fraction for drinking water (abs) 0.5 0.5 0.5 0.5 0.5 0.5 0.5DUSTING Household dust ingestion (g/day) 0.07425 0.07425 0.07425 0.07425 0.07425 0.07425 0.07425DUSTAF Dust absorption fraction (relative to soluble) 0.3 0.3 0.3 0.3 0.3 0.3 0.3DUSTPB Dust Pb concentration (μg/g)0000000SOILING Soil ingestion (g/day) 0.06075 0.06075 0.06075 0.06075 0.06075 0.06075 0.06075SOILAF Soil absorption fraction (relative to soluble) 0.3 0.3 0.3 0.3 0.3 0.3 0.3SOILPB Soil Pb concentration (μg/g)0000000SOILBIO Soil bioavailability1111111DUSTBIO Dust bioavailability1111111IFETAL Flag to include fetal exposure1111111BLDMOTMaternal blood Pb (μg/dL)1.94 1.94 1.94 1.94 1.94 1.94 1.94BRATIORatio of maternal to fetal blood0.85 0.85 0.85 0.85 0.85 0.85 0.85IRBC Use non-linear RBC model1111111RBCNL Non-linear RBC model threshold (μg/day) 60 60 60 60 60 60 60SATRATNon-linear RBC model coefficient350 350 350 350 350 350 350POWERNon-linear RBC model power1.5 1.5 1.5 1.5 1.5 1.5 1.5Biokinetic Input Parameters by Age Endpoints (CHAGE)Exhibit I-2. Example Leggett Model Input Parameters(years)DescriptionParameterICF International I-10 DRAFT – December 2006Appendix I2.4 2.5 2.6 2.7 2.8 2.9 3AFIIngestion absorption fraction (absolute)0.5 0.5 0.5 0.5 0.5 0.5 0.5RESVOLRespiratory volume (m3/day)6 6 6 6 6 6 6.8AFLUNG Inhalation absorption fraction (absolute) 0.42 0.42 0.42 0.42 0.42 0.42 0.42CHRDirect intake to bloodstream (μg/day)0000000BRETHAir concentration (μg/m3)0.05 0.05 0.05 0.05 0.05 0.05 0.05EAT Pb content in non-water diet (μg/day) 2.87 2.87 2.87 2.87 2.87 2.87 2.74H20CONS Water consumption (L/day) 0.31 0.31 0.31 0.31 0.31 0.32 0.33H20CONCPb concentration in drinking water (μg/L)4.61 4.61 4.61 4.61 4.61 4.61 4.61H20AF Absorption fraction for drinking water (abs) 0.5 0.5 0.5 0.5 0.5 0.5 0.5DUSTING Household dust ingestion (g/day) 0.07425 0.07425 0.07425 0.07425 0.07425 0.07425 0.07425DUSTAF Dust absorption fraction (relative to soluble) 0.3 0.3 0.3 0.3 0.3 0.3 0.3DUSTPB Dust Pb concentration (μg/g)0000000SOILING Soil ingestion (g/day) 0.06075 0.06075 0.06075 0.06075 0.06075 0.06075 0.06075SOILAF Soil absorption fraction (relative to soluble) 0.3 0.3 0.3 0.3 0.3 0.3 0.3SOILPB Soil Pb concentration (μg/g)0000000SOILBIO Soil bioavailability1111111DUSTBIO Dust bioavailability1111111IFETAL Flag to include fetal exposure1111111BLDMOTMaternal blood Pb (μg/dL)1.94 1.94 1.94 1.94 1.94 1.94 1.94BRATIORatio of maternal to fetal blood0.85 0.85 0.85 0.85 0.85 0.85 0.85IRBC Use non-linear RBC model1111111RBCNL Non-linear RBC model threshold (μg/day) 60 60 60 60 60 60 60SATRATNon-linear RBC model coefficient350 350 350 350 350 350 350POWERNon-linear RBC model power1.5 1.5 1.5 1.5 1.5 1.5 1.5Biokinetic Input Parameters by Age Endpoints (CHAGE)Exhibit I-2. Example Leggett Model Input ParametersParameter Description(years)ICF International I-11 DRAFT – December 2006Appendix I3.1 3.2 3.3 3.4 3.5 3.6 3.7AFIIngestion absorption fraction (absolute)0.5 0.5 0.5 0.5 0.5 0.5 0.5RESVOLRespiratory volume (m3/day)6.8 6.8 6.8 6.8 6.8 6.8 6.8AFLUNG Inhalation absorption fraction (absolute) 0.42 0.42 0.42 0.42 0.42 0.42 0.42CHRDirect intake to bloodstream (μg/day)0000000BRETHAir concentration (μg/m3)0.05 0.05 0.05 0.05 0.05 0.05 0.05EAT Pb content in non-water diet (μg/day) 2.74 2.74 2.74 2.74 2.74 2.74 2.74H20CONS Water consumption (L/day) 0.33 0.33 0.33 0.33 0.33 0.33 0.33H20CONCPb concentration in drinking water (μg/L)4.61 4.61 4.61 4.61 4.61 4.61 4.61H20AF Absorption fraction for drinking water (abs) 0.5 0.5 0.5 0.5 0.5 0.5 0.5DUSTING Household dust ingestion (g/day) 0.07425 0.07425 0.07425 0.07425 0.07425 0.07425 0.07425DUSTAF Dust absorption fraction (relative to soluble) 0.3 0.3 0.3 0.3 0.3 0.3 0.3DUSTPB Dust Pb concentration (μg/g)0000000SOILING Soil ingestion (g/day) 0.06075 0.06075 0.06075 0.06075 0.06075 0.06075 0.06075SOILAF Soil absorption fraction (relative to soluble) 0.3 0.3 0.3 0.3 0.3 0.3 0.3SOILPB Soil Pb concentration (μg/g)0000000SOILBIO Soil bioavailability1111111DUSTBIO Dust bioavailability1111111IFETAL Flag to include fetal exposure1111111BLDMOTMaternal blood Pb (μg/dL)1.94 1.94 1.94 1.94 1.94 1.94 1.94BRATIORatio of maternal to fetal blood0.85 0.85 0.85 0.85 0.85 0.85 0.85IRBC Use non-linear RBC model1111111RBCNL Non-linear RBC model threshold (μg/day) 60 60 60 60 60 60 60SATRATNon-linear RBC model coefficient350 350 350 350 350 350 350POWERNon-linear RBC model power1.5 1.5 1.5 1.5 1.5 1.5 1.5Exhibit I-2. Example Leggett Model Input ParametersBiokinetic Input Parameters by Age Endpoints (CHAGE)(years)Parameter DescriptionICF International I-12 DRAFT – December 2006Appendix I3.8 3.9 4 4.1 4.2 4.3 4.4AFIIngestion absorption fraction (absolute)0.5 0.5 0.5 0.5 0.5 0.5 0.5RESVOLRespiratory volume (m3/day)6.8 6.8 7.8 7.8 7.8 7.8 7.8AFLUNG Inhalation absorption fraction (absolute) 0.42 0.42 0.42 0.42 0.42 0.42 0.42CHRDirect intake to bloodstream (μg/day)0000000BRETHAir concentration (μg/m3)0.05 0.05 0.05 0.05 0.05 0.05 0.05EAT Pb content in non-water diet (μg/day) 2.74 2.74 2.61 2.61 2.61 2.61 2.61H20CONS Water consumption (L/day) 0.33 0.345 0.36 0.36 0.36 0.36 0.36H20CONCPb concentration in drinking water (μg/L)4.61 4.61 4.61 4.61 4.61 4.61 4.61H20AF Absorption fraction for drinking water (abs) 0.5 0.5 0.5 0.5 0.5 0.5 0.5DUSTING Household dust ingestion (g/day) 0.07425 0.07425 0.055 0.055 0.055 0.055 0.055DUSTAF Dust absorption fraction (relative to soluble) 0.3 0.3 0.3 0.3 0.3 0.3 0.3DUSTPB Dust Pb concentration (μg/g)0000000SOILING Soil ingestion (g/day) 0.06075 0.06075 0.045 0.045 0.045 0.045 0.045SOILAF Soil absorption fraction (relative to soluble) 0.3 0.3 0.3 0.3 0.3 0.3 0.3SOILPB Soil Pb concentration (μg/g)0000000SOILBIO Soil bioavailability1111111DUSTBIO Dust bioavailability1111111IFETAL Flag to include fetal exposure1111111BLDMOTMaternal blood Pb (μg/dL)1.94 1.94 1.94 1.94 1.94 1.94 1.94BRATIORatio of maternal to fetal blood0.85 0.85 0.85 0.85 0.85 0.85 0.85IRBC Use non-linear RBC model1111111RBCNL Non-linear RBC model threshold (μg/day) 60 60 60 60 60 60 60SATRATNon-linear RBC model coefficient350 350 350 350 350 350 350POWERNon-linear RBC model power1.5 1.5 1.5 1.5 1.5 1.5 1.5Biokinetic Input Parameters by Age Endpoints (CHAGE)Exhibit I-2. Example Leggett Model Input ParametersParameter Description(years)ICF International I-13 DRAFT – December 2006Appendix I4.5 4.6 4.7 4.8 4.9 5 5.25AFIIngestion absorption fraction (absolute)0.5 0.5 0.5 0.5 0.5 0.5 0.5RESVOLRespiratory volume (m3/day)7.8 7.8 7.8 7.8 7.8 8.8 8.8AFLUNG Inhalation absorption fraction (absolute) 0.42 0.42 0.42 0.42 0.42 0.42 0.42CHRDirect intake to bloodstream (μg/day)0000000BRETHAir concentration (μg/m3)0.05 0.05 0.05 0.05 0.05 0.05 0.05EAT Pb content in non-water diet (μg/day) 2.61 2.61 2.61 2.61 2.61 2.74 2.74H20CONS Water consumption (L/day) 0.36 0.36 0.36 0.36 0.375 0.39 0.39H20CONCPb concentration in drinking water (μg/L)4.61 4.61 4.61 4.61 4.61 4.61 4.61H20AF Absorption fraction for drinking water (abs) 0.5 0.5 0.5 0.5 0.5 0.5 0.5DUSTING Household dust ingestion (g/day) 0.055 0.055 0.055 0.055 0.055 0.0495 0.0495DUSTAF Dust absorption fraction (relative to soluble) 0.3 0.3 0.3 0.3 0.3 0.3 0.3DUSTPB Dust Pb concentration (μg/g)0000000SOILING Soil ingestion (g/day) 0.045 0.045 0.045 0.045 0.045 0.0405 0.0405SOILAF Soil absorption fraction (relative to soluble) 0.3 0.3 0.3 0.3 0.3 0.3 0.3SOILPB Soil Pb concentration (μg/g)0000000SOILBIO Soil bioavailability1111111DUSTBIO Dust bioavailability1111111IFETAL Flag to include fetal exposure1111111BLDMOTMaternal blood Pb (μg/dL)1.94 1.94 1.94 1.94 1.94 1.94 1.94BRATIORatio of maternal to fetal blood0.85 0.85 0.85 0.85 0.85 0.85 0.85IRBC Use non-linear RBC model1111111RBCNL Non-linear RBC model threshold (μg/day) 60 60 60 60 60 60 60SATRATNon-linear RBC model coefficient350 350 350 350 350 350 350POWERNon-linear RBC model power1.5 1.5 1.5 1.5 1.5 1.5 1.5Exhibit I-2. Example Leggett Model Input ParametersBiokinetic Input Parameters by Age Endpoints (CHAGE)(years)DescriptionParameterICF International I-14 DRAFT – December 2006Appendix I5.5 5.75 6 6.25 6.5 6.75 7AFIIngestion absorption fraction (absolute)0.5 0.5 0.5 0.5 0.5 0.5 0.5RESVOLRespiratory volume (m3/day)8.8 8.8 10 10 10 10 10AFLUNG Inhalation absorption fraction (absolute) 0.42 0.42 0.42 0.42 0.42 0.42 0.42CHRDirect intake to bloodstream (μg/day)0000000BRETHAir concentration (μg/m3)0.05 0.05 0.05 0.05 0.05 0.05 0.05EAT Pb content in non-water diet (μg/day) 2.74 2.74 2.99 2.99 2.99 2.99 2.99H20CONS Water consumption (L/day) 0.39 0.405 0.42 0.42 0.42 0.42 0.42H20CONCPb concentration in drinking water (μg/L)4.61 4.61 4.61 4.61 4.61 4.61 4.61H20AF Absorption fraction for drinking water (abs) 0.5 0.5 0.5 0.5 0.5 0.5 0.5DUSTING Household dust ingestion (g/day) 0.0495 0.0495 0.04675 0.04675 0.04675 0.04675 0.04675DUSTAF Dust absorption fraction (relative to soluble) 0.3 0.3 0.3 0.3 0.3 0.3 0.3DUSTPB Dust Pb concentration (μg/g)0000000SOILING Soil ingestion (g/day) 0.0405 0.0405 0.03825 0.03825 0.03825 0.03825 0.03825SOILAF Soil absorption fraction (relative to soluble) 0.3 0.3 0.3 0.3 0.3 0.3 0.3SOILPB Soil Pb concentration (μg/g)0000000SOILBIO Soil bioavailability1111111DUSTBIO Dust bioavailability1111111IFETAL Flag to include fetal exposure1111111BLDMOTMaternal blood Pb (μg/dL)1.94 1.94 1.94 1.94 1.94 1.94 1.94BRATIORatio of maternal to fetal blood0.85 0.85 0.85 0.85 0.85 0.85 0.85IRBC Use non-linear RBC model1111111RBCNL Non-linear RBC model threshold (μg/day) 60 60 60 60 60 60 60SATRATNon-linear RBC model coefficient350 350 350 350 350 350 350POWERNon-linear RBC model power1.5 1.5 1.5 1.5 1.5 1.5 1.5Exhibit I-2. Example Leggett Model Input ParametersBiokinetic Input Parameters by Age Endpoints (CHAGE)(years)DescriptionParameterICF International I-15 DRAFT – December 2006

## Appendix I

ICF International I-16 DRAFT – December 2006 

## References

Alexander, F. W.; Clayton, B. E.; Delves, H. T. (1974) Mineral and trace-metal balances in children receiving normal and synt hetic diets. Q. J. Med. 43: 89-111.

Casteel, S.W., R. Tessman, W.J. Brattin and A.M. Wahlquist. (2005) Relative Bioavailability of Lead in House Dust and Soil from the Herculaneum Lead Smelter Site in Herculaneum, Missouri. Prepared for Bl ack & Veatch Special Projects Corporation. May 2005.

Centers for Disease Control and Prevention (CDC). (1997) Third National Health and Nutrition Examination Survey (NHANES III), 1988-94, Dietary Recall Data. Available at http://www.cdc.gov/nchs/products /elec_prods/subject/nhanes3.htm.

Centers for Disease Control and Prevention (CDC). (2004) Children's Blood Lead Levels

in the United States. Childhood Lead Poisoni ng Prevention Branch, National Center for Environmental Health, CDC. Available at http://www.cdc.gov/nceh/lead/research /kidsBLL.htm#National%20surveys.

Clayton, C. A.; Pellizzari, E. D.; Whitmore, R. W.; Perritt, R. L., Quackenboss, J. J. (1999) National human exposure assessment survey (NHEXAS): distributions and associations of lead, arsenic, and volat ile organic compounds in EPA Region 5. J. Exposure Anal. Environ. Epidemiol. 9: 381-392.

International Commission on Radiological Pr otection (ICRP). (2002) ICRP Publication 89: Basic anatomical and physiological data fo r use in radiological protection. Annals of the ICRP 32 (3-4):100.

Leggett, R.W. (1993) An Age-Specific Kine tic Model of Pb Metabolism in Humans. Environ Health Perspect 101:598-616.

Moir, C. M.; Freedman, B.; McCurdy, R. (1996) Metal mobilization from waterdistribution systems of buildings serviced by lead-pipe mains. Can. Water Resour. J. 21:

45-52.

U.S. Environmental Protection Agency (U SEPA). (1989) Review of the National Ambient Air Quality Standards for Lead: Exposure Analysis Methodology and Validation. OAQPS Staff Report. EPA-450/2-89-011. Office of Air Quality Planning and Standards, Research Triangle Park, NC.

U.S. Environmental Protection Agency (U SEPA). (1994) Technical Support Document: Parameters and Equations Used in the Integr ated Exposure Uptake Biokinetic Model for Lead in Children (v.099d). Offi ce of Solid Waste. EPA 540/R-94/040.

## Appendix I

ICF International I-17 DRAFT – December 2006 

## U.S. Environmental Protection Agency (U SEPA). (2002) Children-Specific Exposure

Factors Handbook Interim Draft. National Cent er for Environmental Assessment, Office

of Research and Develo pment. EPA-600-P-00-002B.

U.S. Environmental Protection Agency (USEPA). (2006) Air Quality Criteria for Lead, Volume I of II. Research Triangle Park, NC: Nati onal Center for Environmental

Assessment – RTP Office. EPA/600/R- 5/144aF. October. Available at http://cfpub.epa.gov/ncea/cfm/recordisplay.cfm?deid=158823.

U.S. Food and Drug Administration (FDA). (2001) Total Diet Study. U. S. Food and Drug Administration Center for Food Safety and Applied Nutrition Office of Plant and Dairy Foods and Beverages (June 2001). Available at http://www.cfsan.fda.gov/~comm/tds-toc.html.

van Wijnen JH, Clausing P, Brunekreef B. (1990) Estimated soil ingestion by children. Environ Res. 1990 Apr;51(2):147-62.

Ziegler, E. E.; Edwards, B. B.; Jensen, R. L.; Mahaffey, K. R.; Fomon, S. J. (1978) Absorption and retention of lead by infants. Pediatr. Res. 12: 29-34.

# Appendix J

Detailed Human Health Risk Results

## Appendix J

ICF International J- 

## 1 DRAFT – December 2006 

## Appendix J presents detailed human exposure and heath risk summary data for the three case 1 study locations: the primary Pb smelter, the sec ondary Pb smelter, and the near roadway urban 2 location. For each of the case study locations , the predicted blood Pb distributions, IQ 3 distributions, and exposure path way contributions to total Pb uptake are provided for both 4 lifetime average and concurrent blood lead pred ictions from the Integrated Exposure Uptake 5 Biokinetic (IEUBK) Model for Children (hereafter referred to as the IEUBK model) and the 6
International Commission for Radi ation Protection (ICRP) model (h ereafter referred to as the 7 Leggett model). Exhibit J-1 and J-2 present summar y data for the primary Pb smelter; Exhibit J8 3 and J-4 present summary data for the secondary Pb smelter; and Exhibit J-5 presents summary 9 data for the near roadway urban location. These results are discussed in more detail in Section 10

6.2. 11Appendix JAir Soil House Dust DietTotal PolicyRelevantSourcesTotal PolicyRelevantBackgroundExposuresPopulationAbovePredictedBlood PbLevel/IQChangeIEUBK (Concurrent Blood Pb Metric)Max 37.2 -7.4 4.0% 7% 86% 2% 98% 2% 099.9th21.9 -6.0 4.0% 7% 86% 2% 98% 2% 499.5th12.4 -4.4 3.4% 6% 87% 4% 96% 4% 1999th7.4 -3.0 3.3% 8% 85% 4% 96% 4% 3995th3.7 -1.2 0.6% 68% 9% 22% 78% 22% 19490th2.9 -0.5 0.5% 54% 11% 34% 66% 34% 38875th2.0 - - 0.4% 41% 13% 45% 55% 45% 970Median 1.3 - - 0.9% 24% 19% 56% 44% 56% 1,94025th0.9 - - 0.7% 26% 18% 56% 44% 56% 2,9101st0.4 - - 0.4% 30% 15% 54% 46% 54% 3,841IEUBK (Lifetime-Averaged Blood Pb Metric)Max 48.5 -6.3 4.0% 7% 86% 2% 98% 2% 099.9th28.6 -4.7 4.2% 3% 90% 2% 98% 2% 499.5th16.9 -3.1 2.9% 12% 80% 5% 95% 5% 1999th10.6 -1.7 2.9% 12% 80% 5% 95% 5% 3995th5.3 - - 0.7% 63% 11% 26% 74% 26% 19490th4.1 - - 0.7% 59% 11% 29% 71% 29% 38875th2.7 - - 0.6% 20% 18% 62% 38% 62% 970Median 1.8 - - 0.7% 63% 11% 25% 75% 25% 1,94025th1.2 - - 0.7% 26% 18% 56% 44% 56% 2,9101st0.5 - - 0.4% 30% 15% 54% 46% 54% 3,841Exhibit J-1. Summary of Projected Blood Pb Distributions, IQ Distributions, and Exposure Pathway Contributions toTotal Pb Uptake for the Primary Pb Smelter Case Study, Current Conditions ScenarioPredicted IQChange(Log LinearModel)aPathway ContributionPercentilePredictedBlood Pb(μg/dL)ICF International J-2 DRAFT - December 2006Appendix JAir Soil House Dust DietTotal PolicyRelevantSourcesTotal PolicyRelevantBackgroundExposuresPopulationAbovePredictedBlood PbLevel/IQChangeExhibit J-1. Summary of Projected Blood Pb Distributions, IQ Distributions, and Exposure Pathway Contributions toTotal Pb Uptake for the Primary Pb Smelter Case Study, Current Conditions ScenarioPredicted IQChange(Log LinearModel)aPathway ContributionPercentilePredictedBlood Pb(μg/dL)Leggett (Concurrent Blood Pb Metric)Max 19.2 -5.6 2.9% 12% 80% 5% 95% 5% 099.9th13.9 -4.7 4.0% 7% 86% 2% 98% 2% 499.5th6.7 -2.8 2.9% 12% 80% 5% 95% 5% 1999th4.2 -1.5 2.0% 13% 74% 11% 89% 11% 3995th2.0 - - 0.9% 24% 19% 56% 44% 56% 19490th1.5 - - 0.3% 54% 11% 35% 65% 35% 38875th1.0 - - 0.6% 60% 11% 28% 72% 28% 970Median 0.7 - - 0.3% 31% 14% 55% 45% 55% 1,94025th0.5 - - 0.3% 54% 11% 35% 65% 35% 2,9101st0.2 - - 0.4% 30% 15% 54% 46% 54% 3,841Leggett (Lifetime-Averaged Blood Pb Metric)Max 31.8 -5.0 2.9% 12% 80% 5% 95% 5% 099.9th22.9 -4.0 4.2% 3% 90% 2% 98% 2% 499.5th11.1 -1.8 2.9% 12% 80% 5% 95% 5% 1999th6.8 -0.3 1.1% 32% 50% 17% 83% 17% 3995th3.1 - - 0.6% 59% 11% 29% 71% 29% 19490th2.3 - - 0.6% 68% 9% 22% 78% 22% 38875th1.6 - - 0.7% 59% 11% 29% 71% 29% 970Median 1.1 - - 0.4% 38% 13% 48% 52% 48% 1,94025th0.7 - - 0.9% 24% 19% 56% 44% 56% 2,9101st0.3 - - 0.4% 30% 15% 54% 46% 54% 3,841a- - indicates that IQ changes are not estimated below blood Pb cutoff values.ICF International J-3 DRAFT - December 2006Appendix JAir Soil House Dust DietTotal Policy-Relevant SourcesTotal PolicyRelevantBackgroundExposuresPopulationAbovePredictedBlood PbLevel/IQChangeIEUBK (Concurrent Blood Pb Metric)Max 33.8 -7.1 3.4% 11% 82% 3% 97% 3% 099.9th18.4 -5.5 3.4% 11% 82% 3% 97% 3% 499.5th11.2 -4.2 3.5% 6% 86% 4% 96% 4% 1999th7.9 -3.2 0.5% 81% 6% 13% 87% 13% 3995th3.7 -1.2 0.6% 60% 11% 28% 72% 28% 19490th2.9 -0.5 0.5% 48% 12% 40% 60% 40% 38875th2.0 - - 0.5% 48% 12% 39% 61% 39% 970Median 1.4 - - 0.7% 59% 11% 29% 71% 29% 1,94025th0.9 - - 0.4% 41% 14% 45% 55% 45% 2,9101st0.4 - - 0.6% 20% 18% 62% 38% 62% 3,841IEUBK (Lifetime-Averaged Blood Pb Metric)Max 45.6 -6.1 3.4% 11% 82% 3% 97% 3% 099.9th24.9 -4.3 3.6% 5% 88% 4% 96% 4% 499.5th15.5 -2.8 2.9% 12% 80% 5% 95% 5% 1999th11.3 -1.9 2.9% 12% 80% 5% 95% 5% 3995th5.4 - - 2.2% 15% 74% 9% 91% 9% 19490th4.1 - - 0.4% 30% 15% 54% 46% 54% 38875th2.8 - - 0.6% 59% 11% 29% 71% 29% 970Median 1.9 - - 0.5% 31% 16% 52% 48% 52% 1,94025th1.2 - - 0.9% 24% 19% 56% 44% 56% 2,9101st0.5 - - 0.3% 43% 12% 44% 56% 44% 3,841Exhibit J-2. Summary of Projected Blood Pb Distributions, IQ Distributions, and Exposure Pathway Contributions to TotalPb Uptake for the Primary Pb Smelter Case Study, Attainment ScenarioPredicted IQChange(Log LinearModel)aPercentilePredicted BloodPb (μg/dL)Pathway ContributionICF International J-4 DRAFT - December 2006Appendix JAir Soil House Dust DietTotal Policy-Relevant SourcesTotal PolicyRelevantBackgroundExposuresPopulationAbovePredictedBlood PbLevel/IQChangeExhibit J-2. Summary of Projected Blood Pb Distributions, IQ Distributions, and Exposure Pathway Contributions to TotalPb Uptake for the Primary Pb Smelter Case Study, Attainment ScenarioPredicted IQChange(Log LinearModel)aPercentilePredicted BloodPb (μg/dL)Pathway ContributionLeggett (Concurrent Blood Pb Metric)Max 17.0 -5.3 3.4% 6% 87% 4% 96% 4% 099.9th12.7 -4.5 3.6% 5% 88% 4% 96% 4% 499.5th6.4 -2.6 1.3% 77% 12% 10% 90% 10% 1999th4.3 -1.6 2.9% 12% 80% 5% 95% 5% 3995th2.0 - - 0.7% 63% 11% 25% 75% 25% 19490th1.5 - - 0.6% 68% 9% 22% 78% 22% 38875th1.0 - - 0.9% 24% 19% 56% 44% 56% 970Median 0.7 - - 0.9% 26% 19% 54% 46% 54% 1,94025th0.5 - - 0.5% 26% 17% 57% 43% 57% 2,9101st0.2 - - 0.4% 24% 17% 59% 41% 59% 3,841Leggett (Lifetime-Averaged Blood Pb Metric)Max 28.1 -4.6 3.4% 6% 87% 4% 96% 4% 099.9th20.7 -3.7 3.4% 6% 87% 4% 96% 4% 499.5th10.6 -1.7 1.3% 77% 12% 10% 90% 10% 1999th7.1 -0.5 2.9% 12% 80% 5% 95% 5% 3995th3.1 - - 0.3% 54% 11% 35% 65% 35% 19490th2.3 - - 2.0% 14% 73% 11% 89% 11% 38875th1.6 - - 0.4% 41% 14% 45% 55% 45% 970Median 1.1 - - 0.9% 24% 19% 56% 44% 56% 1,94025th0.7 - - 0.6% 20% 18% 62% 38% 62% 2,9101st0.3 - - 0.4% 24% 17% 59% 41% 59% 3,841a- - indicates that IQ changes are not estimated below blood Pb cutoff values.ICF International J-5 DRAFT - December 2006Appendix JAir SoilHouseDustDietTotal Policy-Relevant SourcesTotal PolicyRelevantBackgroundExposuresPopulationAbovePredictedBlood PbLevel/IQChangeIEUBK (Concurrent Blood Pb Metric)Max 4.7 -1.8 0.3% 8% 23% 69% 24% 76% 099.9th3.7 -1.1 0.8% 9% 27% 63% 30% 70% 299.5th3.0 -0.6 0.8% 9% 27% 63% 30% 70% 899th2.7 -0.3 0.1% 7% 22% 71% 22% 78% 1795th1.9 - - 0.8% 9% 27% 63% 30% 70% 8490th1.7 - - 0.0% 7% 22% 71% 22% 78% 16775th1.2 - - 0.0% 7% 22% 71% 22% 78% 418Median 0.9 - - 0.4% 8% 24% 68% 26% 74% 83625th0.7 - - 0.2% 7% 23% 70% 23% 77% 1,2541st0.3 - - 0.2% 8% 23% 69% 24% 76% 1,655IEUBK (Lifetime-Averaged Blood Pb Metric)Max 6.0 - - 0.3% 8% 23% 69% 24% 76% 099.9th4.7 - - 0.0% 7% 22% 71% 22% 78% 299.5th3.9 - - 0.3% 8% 23% 69% 24% 76% 899th3.5 - - 0.5% 9% 25% 66% 27% 73% 1795th2.5 - - 0.3% 8% 23% 69% 24% 76% 8490th2.1 - - 0.2% 8% 23% 69% 24% 76% 16775th1.6 - - 0.2% 8% 23% 69% 24% 76% 418Median 1.1 - - 0.1% 7% 22% 71% 22% 78% 83625th0.8 - - 0.3% 8% 24% 68% 25% 75% 1,2541st0.4 - - 0.5% 8% 25% 67% 26% 74% 1,655Exhibit J-3. Summary of Projected Blood Pb Distributions, IQ Distributions, and Exposure Pathway Contributions toTotal Pb Uptake for the Secondary Pb Smelter Case Study, MPE (Modeled) Soil ConcentrationsPredicted IQChange(Log LinearModel)aPercentilePredictedBlood Pb(μg/dL)Pathway ContributionICF International J-6 DRAFT - December 2006Appendix JAir SoilHouseDustDietTotal Policy-Relevant SourcesTotal PolicyRelevantBackgroundExposuresPopulationAbovePredictedBlood PbLevel/IQChangeExhibit J-3. Summary of Projected Blood Pb Distributions, IQ Distributions, and Exposure Pathway Contributions toTotal Pb Uptake for the Secondary Pb Smelter Case Study, MPE (Modeled) Soil ConcentrationsPredicted IQChange(Log LinearModel)aPercentilePredictedBlood Pb(μg/dL)Pathway ContributionLeggett (Concurrent Blood Pb Metric)Max 2.9 -0.5 0.1% 7% 22% 70% 22% 78% 099.9th2.1 - - 0.5% 8% 24% 67% 26% 74% 299.5th1.6 - - 0.8% 9% 27% 63% 30% 70% 899th1.4 - - 0.1% 7% 22% 70% 22% 78% 1795th1.0 - - 0.8% 9% 27% 63% 31% 69% 8490th0.9 - - 0.4% 8% 24% 68% 25% 75% 16775th0.6 - - 0.3% 8% 23% 69% 24% 76% 418Median 0.5 - - 0.6% 9% 25% 65% 29% 71% 83625th0.3 - - 0.5% 8% 25% 67% 26% 74% 1,2541st0.2 - - 0.3% 8% 23% 69% 24% 76% 1,655Leggett (Lifetime-Averaged Blood Pb Metric)Max 4.1 - - 0.1% 7% 22% 70% 22% 78% 099.9th3.0 - - 0.0% 7% 22% 71% 22% 78% 299.5th2.3 - - 0.2% 8% 23% 69% 24% 76% 899th1.9 - - 0.4% 8% 24% 67% 26% 74% 1795th1.4 - - 0.4% 8% 24% 67% 26% 74% 8490th1.2 - - 0.1% 7% 22% 70% 23% 77% 16775th0.9 - - 0.3% 8% 23% 69% 24% 76% 418Median 0.7 - - 0.1% 7% 22% 70% 23% 77% 83625th0.5 - - 0.0% 7% 22% 71% 22% 78% 1,2541st0.2 - - 0.1% 7% 22% 70% 23% 77% 1,655a- - indicates that IQ changes are not estimated below blood Pb cutoff values.ICF International J-7 DRAFT - December 2006Appendix JAir SoilHouseDustDietTotal Policy-Relevant SourcesTotal PolicyRelevantBackgroundExposuresPopulationAbove PredictedBlood PbLevel/IQ ChangeIEUBK (Concurrent Blood Pb Metric)Max 6.7 -2.5 0.3% 19% 25% 55% 39% 61% 099.9th4.7 -2.3 0.4% 20% 26% 54% 40% 60% 299.5th3.7 -1.4 0.2% 19% 25% 56% 38% 62% 899th3.3 -1.0 0.3% 20% 25% 54% 40% 60% 1795th2.4 -0.3 0.2% 19% 25% 56% 38% 62% 8490th2.0 - - 0.1% 18% 24% 58% 36% 64% 16775th1.5 - - 0.2% 19% 25% 56% 38% 62% 418Median 1.1 - - 0.1% 18% 24% 57% 37% 63% 83625th0.8 - - 0.2% 19% 25% 56% 39% 61% 1,2541st0.4 - - 0.0% 18% 24% 58% 36% 64% 1,655IEUBK (Lifetime-Averaged Blood Pb Metric)Max 9.0 -1.2 0.3% 19% 25% 55% 39% 61% 099.9th6.3 -0.1 0.3% 19% 25% 56% 38% 62% 299.5th4.9 - - 0.3% 20% 25% 54% 40% 60% 899th4.4 - - 0.1% 19% 24% 57% 37% 63% 1795th3.2 - - 0.5% 21% 27% 52% 43% 57% 8490th2.7 - - 0.1% 18% 24% 57% 37% 63% 16775th2.0 - - 0.4% 20% 26% 54% 41% 59% 418Median 1.5 - - 0.2% 19% 24% 57% 38% 62% 83625th1.1 - - 0.4% 19% 26% 55% 40% 60% 1,2541st0.5 - - 0.0% 18% 24% 58% 36% 64% 1,655Exhibit J-4. Summary of Projected Blood Pb Distributions, IQ Distributions, andExposure Pathway Contributions to Total Pb Uptake for the Secondary Pb Smelter Case Study, Hybrid Soil ConcentrationsPercentilePredictedBlood Pb(μg/dL)Predicted IQChange(Log LinearModel)aPathway ContributionICF International J-8 DRAFT - December 2006Appendix JAir SoilHouseDustDietTotal Policy-Relevant SourcesTotal PolicyRelevantBackgroundExposuresPopulationAbove PredictedBlood PbLevel/IQ ChangeExhibit J-4. Summary of Projected Blood Pb Distributions, IQ Distributions, andExposure Pathway Contributions to Total Pb Uptake for the Secondary Pb Smelter Case Study, Hybrid Soil ConcentrationsPercentilePredictedBlood Pb(μg/dL)Predicted IQChange(Log LinearModel)aPathway ContributionLeggett (Concurrent Blood Pb Metric)Max 3.0 -0.5 0.2% 19% 24% 57% 37% 63% 099.9th2.3 - - 0.2% 19% 24% 57% 38% 62% 299.5th1.9 - - 0.3% 19% 25% 55% 39% 61% 899th1.7 - - 0.4% 20% 26% 53% 42% 58% 1795th1.2 - - 0.2% 19% 24% 57% 38% 62% 8490th1.0 - - 0.2% 19% 24% 57% 38% 62% 16775th0.8 - - 0.2% 19% 25% 56% 38% 62% 418Median 0.6 - - 0.3% 20% 25% 55% 40% 60% 83625th0.4 - - 0.1% 18% 24% 58% 36% 64% 1,2541st0.2 - - 0.2% 19% 25% 56% 38% 62% 1,655Leggett (Lifetime-Averaged Blood Pb Metric)Max 4.3 - - 0.2% 19% 24% 57% 37% 63% 099.9th3.3 - - 0.1% 19% 24% 57% 37% 63% 299.5th2.7 - - 0.2% 19% 25% 56% 38% 62% 899th2.5 - - 0.3% 20% 25% 55% 40% 60% 1795th1.8 - - 0.3% 20% 25% 55% 40% 60% 8490th1.5 - - 0.3% 19% 25% 56% 39% 61% 16775th1.1 - - 0.2% 19% 24% 57% 38% 62% 418Median 0.8 - - 0.2% 19% 25% 55% 39% 61% 83625th0.6 - - 0.1% 19% 24% 57% 37% 63% 1,2541st0.3 - - 0.3% 20% 25% 55% 40% 60% 1,655a- - indicates that IQ changes are not estimated below blood Pb cutoff values.ICF International J-9 DRAFT - December 2006Appendix JAir SoilHouseDustDietTotal Policy-Relevant SourcesTotal PolicyRelevantBackgroundExposuresPopulationAbovePredictedBlood PbLevel/IQChangeIEUBK (Concurrent Blood Pb Metric)Max 8.1 -3.3 0.1% 52% 29% 20% 80% 20% 099.9th6.5 -2.7 0.2% 30% 26% 44% 56% 44% 099.5th5.0 -2.0 0.2% 30% 26% 44% 56% 44% 299th4.4 -1.6 0.2% 30% 26% 44% 56% 44% 395th3.1 -0.7 0.2% 30% 26% 44% 56% 44% 1690th2.6 -0.2 0.2% 30% 26% 44% 56% 44% 3275th1.9 - - 0.2% 30% 26% 44% 56% 44% 80Median 1.4 - - 0.2% 37% 27% 35% 65% 35% 15925th1.0 - - 0.2% 37% 27% 35% 65% 35% 2391st0.4 - - 0.2% 30% 26% 44% 56% 44% 316IEUBK (Lifetime-Averaged Blood Pb Metric)Max 11.9 -2.0 0.1% 52% 29% 20% 80% 20% 099.9th9.1 -1.2 0.2% 30% 26% 44% 56% 44% 099.5th7.0 -0.4 0.2% 30% 26% 44% 56% 44% 299th6.2 - - 0.2% 30% 26% 44% 56% 44% 395th4.4 - - 0.2% 30% 26% 44% 56% 44% 1690th3.6 - - 0.2% 30% 26% 44% 56% 44% 3275th2.7 - - 0.2% 30% 26% 44% 56% 44% 80Median 1.9 - - 0.2% 37% 27% 35% 65% 35% 15925th1.4 - - 0.2% 37% 27% 35% 65% 35% 2391st0.6 - - 0.2% 30% 26% 44% 56% 44% 316Exhibit J-5. Summary of Projected Blood Pb Distributions, IQ Distributions, andExposure Pathway Contributions to Total Pb Uptake for the Near Roadway Urban Case StudyPredictedBlood Pb(μg/dL)Predicted IQChangea(Log LinearModel)Pathway ContributionPercentileICF International J-10 DRAFT - December 2006Appendix JAir SoilHouseDustDietTotal Policy-Relevant SourcesTotal PolicyRelevantBackgroundExposuresPopulationAbovePredictedBlood PbLevel/IQChangeExhibit J-5. Summary of Projected Blood Pb Distributions, IQ Distributions, andExposure Pathway Contributions to Total Pb Uptake for the Near Roadway Urban Case StudyPredictedBlood Pb(μg/dL)Predicted IQChangea(Log LinearModel)Pathway ContributionPercentileLeggett (Concurrent Blood Pb Metric)Max 6.7 -2.8 0.2% 37% 27% 35% 65% 35% 099.9th4.2 - - 0.2% 30% 26% 44% 56% 44% 099.5th3.2 - - 0.2% 30% 26% 44% 56% 44% 299th2.7 - - 0.2% 37% 27% 35% 65% 35% 395th1.9 - - 0.2% 30% 26% 44% 56% 44% 1690th1.6 - - 0.2% 30% 26% 44% 56% 44% 3275th1.2 - - 0.2% 30% 26% 44% 56% 44% 80Median 0.8 - - 0.2% 30% 26% 44% 56% 44% 15925th0.6 - - 0.2% 30% 26% 44% 56% 44% 2391st0.3 - - 0.2% 30% 26% 44% 56% 44% 316Leggett (Lifetime-Averaged Blood Pb Metric)Max 9.5 -1.4 0.2% 37% 27% 35% 65% 35% 099.9th6.9 -0.4 0.1% 52% 29% 20% 80% 20% 099.5th4.9 - - 0.2% 30% 26% 44% 56% 44% 299th4.1 - - 0.2% 30% 26% 44% 56% 44% 395th2.9 - - 0.2% 30% 26% 44% 56% 44% 1690th2.4 - - 0.2% 37% 27% 35% 65% 35% 3275th1.7 - - 0.2% 30% 26% 44% 56% 44% 80Median 1.2 - - 0.2% 37% 27% 35% 65% 35% 15925th0.9 - - 0.2% 30% 26% 44% 56% 44% 2391st0.4 - - 0.2% 30% 26% 44% 56% 44% 316a- - indicates that IQ changes are not estimated below blood Pb cutoff values.ICF International J-11 DRAFT - December 2006

## Appendix J

ICF International J- 

## 12 DRAFT – December 2006 

## References 1

2 Leggett, R.W. (1993) An Age-Specific Kinetic Model of Lead Metabolism in Humans. Environ 3 Health Perspect 101:598-616. 4

5 U.S. Environmental Protection Agency (USEPA). (1994) Technical Support Document: 6 Parameters and Equations Used in the Integrated Exposure Uptake Biokinetic Model for Lead in 7 Children (v.099d). Office of Solid Waste. EPA 540/R-94/040. 8

9

# Appendix K

Adaptation of the Lanphear et al. (1998) Model for Estimating Blood Pb Levels in the Pilot Phase Assessment

## Appendix K

ICF International K- 

## 1 DRAFT – December 2006 

## Appendix K includes a discussion of the Lanphear et al. (1998) “empirical” blood Pb model, 1 which was included in the sensitivity analysis, in addition to the Integrated Exposure Uptake 2 Biokinetic (IEUBK) Model for Children (hereafter referred to as the IEUBK model) and the 3
International Commission for Radi ation Protection (ICRP) model (h ereafter referred to as the 4 Leggett model), to compare the resultant blood Pb distributions and IQ change estimates. 5

6 Lanphear et al. (1998) reported the results of an analysis of the relationship between residential 7 soil Pb levels, house dust Pb concentrations, Pb paint hazards, and blood Pb levels in 12 cohorts 8
of urban children in the United States. The study controlled for socioeconomic and family 9 variables, and exposure to Pb in drinking water. A major result of this study was a model that 10 predicted blood Pb concentrations as a function of dust Pb load ing (the amount of Pb per unit 11 area of flooring) and residential soil Pb con centrations. As discussed in Section 6.1, it is 12 important to note that the Lanphear et al. mode l estimates blood Pb concentrations for 16 month 13 old children, so the results from this model canno t be directly compared to the lifetime average 14 and concurrent blood lead predictions from the IEUBK and Leggett models. 15

16
Two technical issues needed to be addressed befo re the Lanphear et al. model could be used to 17
estimate blood Pb levels in the pilot phase human exposure and hea lth risk assessments. First, 18 the Lanphear et al. model’s input is dust Pb loading rather than house dust Pb concentration, 19
therefore a model needed to be developed to describe the relati onship between the estimates of 20 house dust Pb loading in the Lanphear et al. m odel and the house dust co ncentration estimates 21 generated in the primary Pb smelter case study. Second, a method had to be developed to apply 22 the Lanphear et al. model to the specific comb inations of house dust and soil Pb exposures in 23 each of the case study block-groups and block-le vels. This appendix explains how these two 24
technical issues were addressed. 25

## Appendix K

ICF International K- 

## 2 DRAFT – December 2006 

## 1 K.1. Development of a House Dust Pb Concentration- Dust Pb Loading Regression 2

Model 3

4
The first technical issue that ha d to be addressed in this anal ysis was developing a model to 5
relate house dust Pb concentration to house dust Pb loading. In orde r to address this issue, the 6 relationship between dust Pb loading and house dust Pb concentration was investigated using a 7 data set developed as part of HUD’s 1997 National Survey. The data set was used because it 8 appeared to be the largest, mo st nationally representative sour ce of both dust Pb loading (from 9 wipe samples) and house dust Pb concentration data taken simultaneously from the same 10
households. To the extent that these data do not reflect the dust Pb loading-house dust Pb 11 concentration relationship in the primary Pb sm elter case study, the blood Pb estimates will be 12
biased. 13

14 The data set developed as part of HUD’s 1997 Na tional Survey consisted of 307 dust Pb loading 15
and house dust Pb concentration measuremen ts taken from 284 households (USEPA 1998, 16 Appendix C). The data was stra tified into four vintage ranges from pre-1940 to post-1979. Then 17 the data from all four ranges were pooled for th e analysis. Log-log regression provided the best 18 fit and regression diagnostics for the data. Two dust Pb concentr ation data points, one with a 19
value more than 10-fold below the next lowest value, and one with a value more than 10-fold 20 above the next highest value, were excluded from the analysis. The house dust Pb concentration 21
model derived in this manner was as follows (also, see Exhibit K-1): 22

23

LnDustPb = 4.0425 + 0.5848 × LnDustPbLoading 24

25
where: 26

27
LnDustPb = log-transformed house dust Pb concentration ( μ g/g) 28 LnDustPbLoading = log-transformed dust Pb loading (wipe samples)( μ g/ft 2 

## ) 29 adjusted R 2 

## = adjusted variance, set to 0.433 30

31

32

## Appendix K

ICF International K- 

## 3 DRAFT – December 2006 

## 1 Exhibit K-1. Regression Analysis of HUD National Survey House Dust Pb Concentration 2 Data and Dust Pb Loading Data 3

y = 0.5848x + 4.0425

R 2 

### = 0.433

0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0

-1.0 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0

ln (Wipe Sample Dust Loading, μg/sq. ft.)ln(Dust Pb Concentration, μg/g)



## 4 5 K.2. Estimation of Equivalent House Dust Pb Concentrations and a Bivariate Blood Pb 6

Model 7
8
The second technical issue that had to be addres sed in this analysis was developing a method to 9 apply the Lanphear et al. model to the specific co mbinations of house dust and soil Pb exposures 10 in each of the case study block-groups and block-le vels. In order to address this issue, the 11 regression analysis was used to convert selected dust Pb loading values from the Lanphear et al. 12 (1998) analysis to estimates of house dust Pb conc entrations. Exhibit K- 2 is a reproduction of 13 Table 4 in Lanphear et al. (1998), with a column added for estimated house dust Pb 14 concentrations. Table 4 in Lanph ear et al. (1998) cont ains covariate-adjusted estimates of blood 15
Pb for 16 month old children asso ciated with specified combinati ons of dust Pb loading and soil 16 Pb concentrations. In Exhibit K-2, covariate- adjusted estimates of blood Pb for 16 month old 17 children are also sp ecified for house dust Pb concentrations. 18

19

## Appendix K

ICF International K- 

## 4 DRAFT – December 2006 

## In order to estimate blood Pb values for individu al census blocks, Exhibit K-2 was used to derive 1 a bivariate model for predicting blood Pb as a continuous function of soil and house dust Pb 2
concentrations. The REGRESS module from Ma thematica® version 5.2 was used to fit a 3 nonlinear model to the natural log of soil and house dust Pb concentrations, as follows (Wolfram 4 Research Inc. 2005): 5

6

BloodPb = -9.1138 + 2.03554 × LnDustPb + 0.66657 × LnSoilPb 7
where: 8

9
BloodPb = concentration of Pb in blood (mg/kg) 10
LnDustPb = log-transformed house dust Pb concentration ( μ g/g) 11
LnSoilPb = log-transformed soil dust Pb concentration ( μ g/g) 12

13 All the coefficients were significant at p < 10 -6 

## and the F-Ratio for the fit model was 960.3 (p = 14

< 10 -6 

## ). To test the model, the fitted coefficien ts were used to reproduce the estimated blood Pb 15 values in Exhibit K-2. The resulting blood Pb values matched those in the table within an 16 average of 0.4 percent. The maximum difference between any of the values in Exhibit K-2 and 17 those in Lanphear et al.’s Table 4 was 1.6 percent. 18

19

Exhibit K-2. Predicted Blood Pb Levels A ssociated with Combinations of Dust Pb 20 Loading, House Dust Pb Concentrations, and Soil Dust Pb Concentrations 21 (Adapted from Lanphear et al. 1998, Table 4) 22

Soil Dust Pb Concentration (mg/kg) Dust Pb Loading ( μ g/ft 2 

### ) Estimated Equivalent

House Dust

Pb Conc. (mg/kg) 10 72 100 500 1000 1500 2000 4000

1 57 2.3 2.8 2.9 3.5 3.8 4 4.1 4.4

5 146 3.2 4 4.1 4.9 5.3 5.5 5.7 6.1

10 219 3.7 4.6 4.7 5.6 6.1 6.3 6.5 7.1

15 278 4 5 5.1 6.1 6.6 6.9 7.1 7.7

20 328 4.2 5.3 5.4 6.5 7 7.3 7.6 8.1

25 374 4.4 5.5 5.7 6.8 7.3 7.7 7.9 8.5

40 493 4.9 6.1 6.3 7.5 8.1 8.4 8.7 9.4

55 593 5.2 6.5 6.7 8 8.6 9 9.3 10

70 683 5.5 6.8 7 8.4 9.1 9.5 9.8 10.5

100 842 5.9 7.3 7.6 9 9.7 10.2 10.5 11.3 

## 23
24 Note that for equivalent house dust Pb concen trations outside of th e range of the model 25 (i.e., > 845 μ g/g), the same degree of model fit cannot be expected. However, only 17 block26 groups/block-levels in the primary Pb smelter case study, with less than two percent of the 27 exposed child population, have predicted house du st Pb concentrations above this value. 28

## Appendix K

ICF International K- 

## 5 DRAFT – December 2006 

## References 1

2 Lanphear, B.P., Matte, T.D., Rogers, J., Clickner, R.P., Dietz, B., Bornschein, R.L., Succop, P., 3 Mahaffey, K.R., Dixon, S., Galke, W., Rabinowitz , M., Farfel, M., Rohde, C., Schwartz, J., 4 Ashley, P., Jacobs, D.E. (1998) The Contribut ion of Lead-Contaminated House Dust and 5
Residential Soil to Children’s Blood Lead Leve ls: A Pooled Analysis of 12 Epidemiologic 6
Studies. Environmental Research 79:51-68. 7

8 U.S. Environmental Protection Agency (USEPA). (1998) Risk Analysis to Support Standards 9 for Lead in Paint, Dust, and Soil. Office of Pollution Prevention and Toxics. EPA 747-R-97- 10

006. 11

12 Wolfram Research, Inc. (2005) Math ematica, Version 5.2. Champaign, IL. 13

# Appendix L

Development of Pb Soil Screening Values

## Appendix L

ICF International L-1 DRAFT – December 2006 

## The purpose of this appendix is to document th e development of soil benchmarks to use in 1 

## screening soil Pb concentr ations for risks of adverse effects on birds or mammals for the Pb 2 

## NAAQS review (see Section L.1). Development of these soil screening values (SSVs) was 3 

## based in part on the methodology developed by EP A for estimating Ecological Soil Screening 4 

## Levels (Eco-SSLs) for use in the Superfund program. As background, therefore, a brief 5 

## overview of the Eco-SSL methodology and the de rivation of the Pb Eco-SSLs for birds and 6 

## mammals is presented in Section L.2. An evalua tion of the potential util ity of the Pb Eco-SSLs 7 

## for the Pb NAAQS review is presented in Sectio n L.3. Section L.4 presents the SSVs for birds 8 

## and mammals specifically derived for the Pb NAAQS review. 9

## Appendix L

ICF International L-2 DRAFT – December 2006 1 

## L.1 Purpose 2

3 

## The purpose of this appendix is to document the development of soil screen ing values (SSVs) for 4 

## use in the ecological risk a ssessment conducted for the Pb NAAQS review. In general, 5 

## screening-level ecological benchmarks are concen trations of a chemical in an environmental 6 

## medium below which it is very unlikely that adve rse ecological effects might occur. At exposure 7 

## concentrations above the screening-level benc hmark, further evaluation may be needed to 8 

## determine the likelihood of adverse ecological eff ects. To conserve resources, that evaluation 9 

## may be conducted iteratively, with information gleaned at one stage informing the next stage in 10 

## the assessment (USEPA 1998a). 11

12 

## Pre-screens or initial screening-level asse ssments generally include many conservative 13 

## assumptions to ensure that risks are not overl ooked. For example, in the Superfund program, a 14 

## screening-level risk assessment for wildlife generally assumes 100 percent bioavailability of a 15 

## contaminant in food, soil, and water, and a diet co nsisting of 100 percent of the diet item that is 16 

## most contaminated (USEPA 1998b). If the init ial screening assessment cannot conclude that 17 

## risks are negligible for one or more chemicals, further analysis may or may not be needed 18 

## depending on the risk management decision th at is under advisement. Depending on the EPA 19 

## program office and its needs, furt her analysis will be conducted itera tively or the next phase will 20 

## be full-scale baseline human exposur e and health risk assessments. 21

22 

## This appendix documents the develo pment of SSVs to screen for risk s of Pb in soils to birds and 23 

## mammals in an ecological risk assessment for the Pb NAAQS review. EPA’s Superfund 24 

## program has developed Ecological Soil Screening Le vels (Eco-SSLs) for use in screening-level 25 

## assessments for Superfund sites. The me thodology for developing Eco-SSLs has undergone 26


## extensive review and consensus building between representatives of the Agency, academia, and 27 

## industry, and therefore represents an excellent starting point fo r consideration in developing 28 

## SSVs for the Pb NAAQS Review. 29

30 

## First, it was considered whether the Eco-SSLs for Superfund sites mi ght be appropriate for use in 31 

## the context of the Pb NAAQS review. The lowe st Eco-SSL for Pb, which is the avian Eco-SSL 32 

## of 11 mg/kg, was compared to background concentra tions of Pb in soils across the United States. 33


## That review indicated that between 70 and 85 percent of background soil concentrations (i.e., 34 

## samples taken in areas far from anthropogenic sources in the United States) might exceed the 35 

## Eco-SSL (see Section L.3). In the absence of documented impacts of Pb to birds nationwide, it 36


## was concluded that the avian Eco-SSL is more conservative than necessary for the Pb NAAQS 37 

## review. However, the Eco-SSL methodology for back-calculating soil concentrations from 38 

## toxicity reference values (TRVs) for birds and mammals is appropriate, and the TRVs developed 39


## for the Eco-SSLs are based on extensive litera ture reviews and data quality assessments. 40 

## Therefore, EPA’s OAPQS decided to use as much of the Eco-SSL approach as was appropriate 41 

## in developing SSVs for the Pb NAAQS review. 42

43


## While available data indicate th at perhaps only 6 percent of b ackground soil Pb concentrations 44 

## exceed the Eco-SSL for mammals (Section L.3), any methods or assumptions used to develop an 45

## Appendix L

ICF International L-3 DRAFT – December 2006 

## avian Pb SSV for the Pb NAAQS review would also apply to the development of a mammalian 1 

## Pb SSV to allow comparable risk screening assessments for birds and mammals. 2

3 

## An overview of the Superfund Eco-SSLs and how th ey are derived (for birds and mammals in 4 

## particular) is provided in the following section. 5

6 

## L.2 Superfund Eco-SSLs 7

8


## L.2.1 Overview of Eco-SSLs 9

10 

## EPA’s Superfund program has been developing Eco- SSLs since the late 1990s, with peer review 11 

## of the methodology by EPA’s Science Advisory Bo ard in 1999 and an external peer review 12 

## workshop open to the public in 2000. The Guidance for Developing Ecological Soil Screening 13


## Levels was published in 2003 and re vised in 2005 (USEPA 2005a). Eco-SSLs for Pb were 14 

## published in 2005 (USEPA 2005b). Eco-SSLs are de veloped for four groups of organisms: 15 

## plants, soil invertebrates, bird s, and mammals. For birds and mammals, Eco-SSLs are based on 16


## the lowest Eco-SSL for each of three different species in each group. The three species have 17 

## been selected to reflect those most exposed thro ugh their diets and incident al soil ingestion rates 18 

## (e.g., soil ingested when foraging on the ground for seeds or invertebrates). The Eco-SSLs for 19 

## birds and mammals are expressed as soil concentr ations and are back-calculated from a hazard 20 

## quotient (HQ) of 1.0 (i.e., the soil concentratio n for which the estimated exposure equals a 21 

## toxicity reference value for th e group). Exposures to birds and mammals via inhalation or 22 

## dermal absorption from soils were not evaluated because they are expected to be negligible 23 

## compared to the risk from oral exposures. 24

25 

## Eco-SSLs for plants and soil invertebrates are cons idered applicable to so ils with a pH between 26 

## 4.0 and 8.5 when the organic matter content is less th an or equal to 10 percent. Eco-SSLs are not 27 

## expected to apply to wetland soils that are regularly flooded or areas amended with sewage 28 

## sludge (because of high organic content) (USEPA 2005a). In general, because of the generally 29 

## higher organic content of wetland sediments co mpared to terrestrial (upland) soils, 30 

## bioavailability of metals in wetlands is expected to be less than in uplands. EPA did not report 31 

## soil conditions for which the avian and mammalian Eco-SSLs are applicable; presumably they 32 

## are applicable to similar soil c onditions as described here. 33

34 

## A generic limitation of the Eco-SSL methodology is that soil microbi al processes are not 35 

## included; however, the data were considered to be insufficient and interpretation of results too 36 

## uncertain for establishing risk-based threshol ds for these ecosystem functions. In addition, 37 

## amphibians, which are particularly important in wetland ecosystems, were not included due to 38 

## data limitations. Of the four Eco-SSLs for Pb, the values for birds (11 mg/kg) and for mammals 39 

## (56 mg/kg) are the lowest; therefore, the derivati on of these values is described in detail in the 40


## next section. 41

42


## L.2.2 Derivation of Eco-SSLs for Birds and Mammals 43

44 

## The first step in the derivation of Eco-SSLs for birds and mammals is identifying an appropriate 45


## TRV for each class of animals. The TRV for bird s is based on avian toxicity data, and the TRV 46

## Appendix L

ICF International L-4 DRAFT – December 2006 

## for mammals is based on mammalian toxicity da ta. The TRV represents the dose (expressed in 1 

## mg of chemical per kg body weight [wet wei ght] per day) associated with the highest no2 

## observed-adverse-effect level (NOA EL) in the data set of adequate toxicity studies. For each 3 

## chemical, an extensive literature search was c onducted to identify toxicity studies, which then 4 

## were reviewed for applicability and quality. 5

6 

## In general, growth and reproduction are the most se nsitive endpoints for wildlife toxicity that are 7 

## likely to impact population stability. The relatio nships between more sensitive biochemical or 8 

## physiological endpoints and the likelihood of popul ation-level effects ge nerally are unclear. 9 

## Therefore, only studies with gr owth, reproduction, or survivorship as endpoints were used to 10 

## derive a TRV for the Eco-SSLs. For example, to develop a TRV for birds, the geometric mean 11 

## of the NOAEL values for growth and reproduction fr om adequate toxicity studies are calculated. 12 

## That value then is compared with bounded lo west-observed-adverse-effect-levels (LOAELs) 13 

## from adequate toxicity studies. 1 

## If the geometric mean NOAEL is higher than the lowest 14 

## bounded LOAEL, then the TRV is set to the highest bounded NOAEL that is lower than the 15 

## lowest bounded LOAEL. This approach is r easonable and not overly conservative for a 16 

## screening-level assessment (i.e., there is a sm all probability that exposure at the TRV would 17 

## cause adverse effects in a given species; and ev en for a sensitive species, only a small proportion 18 

## of the population might be affected). 19

20 

## To calculate an Eco-SSL for birds, the potential e xposures of three bird speci es are evaluated: an 21 

## herbivore (mourning dove), a ground insectivore (American woodcock), a nd a carnivore (red22 

## tailed hawk). The first two species were selected as representative of ground-feeders that may be 23 

## exposed through incidental ingest ion of soils while foraging as well as through ingestion of 24 

## contaminants taken up by plants and soil invert ebrates in their diet. The third species was 25 

## included to evaluate chemicals that might bio accumulate through a terrestrial food chain. An 26 

## Eco-SSL is calculated for each species, and the lowest one becomes the avian Eco-SSL. 27

28 

## Exhibit L-1 provides the parameter values used by EPA to calculate the avian Eco-SSLs for Pb. 29 

## The same procedure is used for all chemicals. The Pb-specific input para meter values in Exhibit 30 

## L-1 are the TRV for Pb and the results of the equa tions used to estimate the concentration of Pb 31


## in different diet ite ms (i.e., biota type i ). The same food and soil inge stion rates are used for all 32 

## chemicals. The resulting Eco-SSLs are provided in the final column. 33

34

1 

### When there is a statistically signifi cant adverse effect observed at the lowest dose included in a toxicity experiment, the LOAEL is said to be “unbounded” (i.e., a lower, bounding, NOAEL is missing). When the highest dose tested does not produce a statis tically significant adverse effect, the NOAEL is unbounded. Bounded NOAEL and LOAEL values are only available from studi es that identify both a NOEL and a LOAEL.

## Appendix L

ICF International L-5 DRAFT – December 2006 

## Exhibit L-1. Parameter Values used in the Calculation of Avian Eco-SSLs for Pb (USEPA 2005b) a



### Surrogate Receptor

Group TRV for Pb (mg Pb/kg bw/day) Food Ingestion Rate (FIR) (kg food dw/ kg bw/day) Soil Ingestion as a Proportion of Diet (P soil 

### ) Concentration of Pb in Biota Type i (B i ; mg Pb/kg dw biota) b 

### Eco-SSL (mg Pb/kg

dw soil)

Herbivore

(dove) 1.63 0.190 0.139 ln(B i 

### ) = 0.561 × ln(Soil i 

### ) – 1.328;
where i = plants 46

Ground
insectivore (woodcock) 1.63 0.214 0.164 ln(B i 

### ) = 0.807 × ln(Soil i 

### ) – 0.218;
where i = earthworms 11

Carnivore

(hawk) 1.63 0.0353 0.057 ln(B i 

### ) = 0.4422 × ln(Soil i 

### ) + 0.0761;
where i = mammals 510

a 

### TRV = toxicity reference value; bw = body weight; dw = dry weight; mg = milligram; kg = kilogram

b 

### B i 

### = concentration in biota type (i), which represents 100 percent of the diet for the receptor in these cases



## To calculate the Eco-SSL, the HQ in the following equation is set equal to 1.0 and the equation is 1


## solved for Soil j 

## , which becomes the Eco-SSL: 2

3 

## HQ = FIR × 

## ( Soil j 

## × 

## P soil 

## + B i 

## ) / TRV 4

5


## where: 6

7 

## HQ = hazard quotient, set equal to 1.0 8



## FIR = food ingestion rate (kg food dry wei ght per kg wildlife body weight per day) 9


## Soil j 

## = concentration of the chemical in soil (mg chemical/kg soil dry weight) 10



## P soil 

## = soil ingestion rate expressed as a propor tion of the dry weight diet (unitless) 11



## B i 

## = concentration of chemical in the i th 

## type of biota consumed by the wildlife 12 

## (mg chemical per kg biota dry weight) 13



## TRV = toxicity reference value (mg ch emical per kg body weight per day) 14

15 

## To calculate an Eco-SSL for mammals, the pote ntial exposures of thr ee mammalian species are 16 

## evaluated: an herbivore (vole) , a ground insectivore (shrew), and a carnivore (weasel). The 17 

## same diets are assumed for these species as for th e three groups of birds (i.e., 100 percent of the 18 

## diet consists of the single food type) (see Exhibit L-2). The Pb-s pecific parameter values are the 19 

## TRV value for mammals and the results of the equati ons used to estimate th e concentration of Pb 20 

## in the diet items, which are the same used for the diets of the three co rresponding bird species. 21 

## The higher TRV for mammals than for birds is the reason for the generally higher Eco-SSLs for 22


## mammals than for birds. There also are diffe rences in food and soil ingestion rates between 23


## birds and mammals. 24

## Appendix L

ICF International L-6 DRAFT – December 2006 1


## Exhibit L-2. Parameter Values used in Calc ulation of the Mammalian Eco-SSLs for Pb (USEPA 2005b) a



### Surrogate Receptor

Group TRV for Pb (mg Pb/kg

bw/day) Food Ingestion Rate (FIR) (kg

food dw/kg

bw/day) Soil Ingestion

as a Proportion

of Diet (P soil 

### ) Concentration of Pb in Biota Type
i (B i ; mg Pb/kg dw biota) b 

### Eco-SSL (mg Pb/kg

dw soil)

Herbivore

(vole) 4.70 0.0875 0.032 ln(B i 

### ) = 0.561 × ln(Soil i 

### ) – 1.328;
where i = plants 1,200

Ground
insectivore

(shrew) 4.70 0.209 0.030 ln(B i 

### ) = 0.807 × ln(Soil i 

### ) – 0.218;
where i = earthworms 56

Carnivore (weasel) 4.70 0.130 0.043 ln(B i 

### ) = 0.4422 × ln(Soil i 

### ) + 0.0761;
where i = mammals 460

a 

### bw = body weight; dw = dry weight

b 

### B i 

### = concentration in biota type (i), which represents 100% of the diet fo r the receptor



## L.3 Utility of the Pb Eco-SSLs for the Nationwide Pb NAAQS Review 2

3 

## An initial evaluation of the potential utility of the Pb Eco-SSLs for the Pb NAAQS review was 4 

## conducted by comparing them to measured backgr ound levels of Pb in soils nationwide. The 5 

## most comprehensive and systematic reporting of background Pb concentrations in soils of the 6 

## United States to date was conducted by the U.S. Geological Survey (USGS) and reported by 7 

## Shacklette and Boerngen (1984). A reanalysis of those data recently has been published by 8 

## Gustavsson et al. (2001) who re processed the data from 1,323 s ites in the conterminous United 9 

## States to generate maps of the distribution of 7 major and 15 trace elemen ts across the country. 10 

## The data collection procedures and sampling loca tions were selected by Shacklette and Boerngen 11 

## (1984) with the goal of defining “background” co ncentrations. Many samples were collected 12 

## incidental to other ongoing studies ; however, the same general sampling methods were applied in 13 

## all locations and all samples were analyzed at the USGS laboratory in Denver, Colorado. Data 14 

## for sampling sites where pollution and other an thropogenic effects may have influenced the 15


## concentrations were excluded. 16

17 

## Gustavsson et al. (2001) reported th at most samples were collected at least 100 meters (m) from 18


## a road and at sites that had natural surfic ial materials supporting plant growth; however, 19 

## Shacklette and Boerngen (1984) reported that many samples were within 100 m of a road, 20 

## although none were near urban areas or highly traveled roads. In some areas, only agricultural 21 

## fields could be sampled. Sampling locations we re selected to be spaced at intervals of 22 

## approximately 80 kilometers (km), and all samples were taken from a depth of 20 centimeters 23 

## (cm) to avoid the plow zone in agricultural ar eas and surface contamination. Where soils were 24 

## shallower, the soil immediately above the bedr ock was sampled. The 10 ppm (mg/kg) detection 25 

## limit for Pb was the same throughout the period of data collection, and an alyses of 185 of 1,319 26 

## (14 percent) samples did not detect Pb. 27

28 

## Exhibit L-3 shows the percentage of samples belo w and above the detection limit as read from a 29 

## figure in Shacklette and Boerngen’ s analysis (1984). Eighty-six percent of soil samples had Pb 30 

## concentrations greater than the detection limit of 10 ppm, which is very close to the avian Eco31 

## SSL of 11 mg/kg. At a minimum, at least 70 pe rcent of background soil c oncentrations exceeded 32

## Appendix L

ICF International L-7 DRAFT – December 2006 

## the avian Eco-SSL of 11 mg/kg (i.e., 70 percent of soil samples had Pb concentrations greater 1 

## than or equal to 15 ppm). Approximately 6 percen t of soil samples had Pb concentrations greater 2 

## than 56 mg/kg, which is the mammalian Eco-SSL. It is important to note that the soil samples in 3


## this USGS data set were colle cted between 1961 and 1975, and may or may not be representative 4


## of current ambient soil Pb concentrations in areas away from anthropogenic influences. 5

6 

## In the absence of documented impacts of Pb to wildlife nationwide, the results of this 7 

## comparison suggest that the avian Eco-SSL is more conservative than necessary for purposes of 8 

## the Pb NAAQS review. 9

10


## Exhibit L-3. Distribution of Soil Pb Concentratio ns across the Conterminous United States 11 

## (Shacklette and Boerngen 1984) 12

Pb Concentration in Soil (ppm dry weight) Percentage of 1,319 Samples Cumulative Percentage

<10 14% 14%

10 to 15 16% 30%

15 to 20 30% 60%

20 to 30 20% 80%

30 to 50 14% 94%

59 to 300 6% 100%

300 to 700 <0.5% 100%



## 13 

## L.4 Development of SSVs for Use in the Pb NAAQS Review 14

15


## This section describes the ev aluation of data underlying th e Pb Eco-SSL for birds for 16 

## applicability to the Pb NAAQS review (Section L.4.1) and how SSVs were developed for the Pb 17 

## NAAQS review using the basic Eco-SSL methodology (Section L.4.2). 18



## L.4.1 Evaluation of Eco-SSL Equation Para meter Values for Applicability to the 19 

## Pb NAAQS Review 20

21 

## The avian Eco-SSL for Pb of 11 mg/kg is drivenby the woodcock; the next highest avian Eco22 

## SSL is the value of 46 mg/kg for the mourning dove. The woodcock Eco-SSL is based on an 23 

## assumed diet of 100 percent earthworms, a soil i ngestion rate of 16.4 per cent of its daily diet 24 

## (dry-weight basis), and a food inge stion rate of 21.4 percent of its body weight daily. To ensure 25


## that most individuals in an exposed population would be protect ed, EPA attempts to estimate 26 

## upper 90 th 

## percentile values for both the soil and f ood ingestion rates for use in the Eco-SSL 27 

## equation. 28

29 

## To estimate the concentration of Pb in earthworms living in soils, EPA used the analysis by 30 

## Sample et al. (1998) of earthworm Pb uptake fa ctors (UFs). Finding th at UFs changed with 31 

## changing soil concentrations, Sample et al. (1998) developed a non-linear empirical regression 32


## model to relate Pb concentrations in earthworms to Pb concentrations in soils. Although Sample 33 

## et al. (1998) also specified an upper 90 th 

## percentile UF based on the Pb earthworm/soil database, 34 

## for the Pb Eco-SSLs, EPA chose to use the re gression model of Pb uptake by earthworms which 35 

## provides a central tendency estima te similar to a mean value. 36

37

## Appendix L

ICF International L-8 DRAFT – December 2006 

## The subsections below provide an examination of the assumptions used to derive each of the 1 

## three exposure parameter values for woodcock (i .e., food ingestion rate, soil ingestion fraction, 2 

## and prediction of Pb in earthworms) and a comme nt on the toxicity refe rence value for birds. 3

4 

## L.4.1.1 Food Ingestion Rate 5

6 

## EPA estimated typical and high-end food ingest ion rates for woodcock based on two studies 7 

## reporting its food ingestion rates: Sheldon (1967) and Stickel et al. (1965) (USEPA 2005c). 8 

## Ingestion rates reported on a wet-weight ( ww) basis (i.e., kg [food ww]/kg [woodcock body 9 

## weight (bw)]/day) were converted to units of dry-weight (dw) (i.e., kg dw/kg bw/day) using 10 

## dietary water content (if reporte d) or assumed water content fo r dietary items as provided in 11


## EPA’s Wildlife Exposure Factors Handbook (USEPA 1993). The two woodcock food ingestion 12


## rate studies are described and eval uated below. Note that the units for the food ingestion rate of 13 

## kg/kg bw/day are equivalent to g/g bw/d ay, which are the units used below: 14

15



## • Stickel et al. (1965) reported a mean wet- weight food ingestion rate of 0.77 g ww/g 16 

## bw/day and a maximum value of 1.43 g ww/ g bw/day for 23 captive woodcock (males 17 

## and females included) fed a diet of heptach lor-treated earthworms (in Louisiana during 18 

## the winter). Assuming that earthworms are 84 percent wate r, EPA estimated mean and 19 

## maximum dry-weight food ingestion rates for these woodcock as 0.123 and 0.229 g dw/g 20 

## bw/day, respectively, and used the maximum value to approximate a 90 th 

## percentile 21 

## (USEPA 2005c). For purposes of the Pb NAAQS review, it is noted that a maximum 22 

## value for 23 birds is likely to exceed both the 90 th 

## and 95 th 

## percentile values. Therefore, 23 

## 0.229 g dw/g bw/day is likely to be a slight overestimate of a true 90 th 

## percentile value 24 

## for the population. 25

26



## • Stickel et al. (1965) also reported mean a nd maximum wet-weight food ingestion rates 27 

## for 11 woodcock fed uncontaminated worms (t he control group) of 0.73 and 1.27 g ww/g 28 

## bw/day, respectively. The inves tigators noted that the food in gestion rates for the treated 29 

## and control groups were not significantly diffe rent from each other. Assuming 84 percent 30 

## water for the earthworms, the mean and maxi mum dry-weight food ingestion rates for the 31 

## control woodcock would be 0.117 and 0.203 g dw /g bw/day, respectively. These food 32 

## ingestion rates were not used in estimating the woodcock food ingest ion rate for the Eco33


## SSL. Because it is unclear whether heptachlor might affect woodcock feeding rates, 34 

## these rates might be more appropriate than th e rates based the heptachlor-exposed birds. 35 

## A maximum food ingestion rate for 11 birds also is likely to be clos er to a true population 36


## 90 th 

## percentile than is a maximum value for 23 birds. 37

## Appendix L

ICF International L-9 DRAFT – December 2006 1



## • Sheldon (1967) measured food intake of an unspecified number of woodcock of both 2 

## sexes in captivity in Massachusetts during th e summer. Sheldon reported the intake rate 3 

## to average 150 g of earthworm s daily, noting that 150 g approximated the summer weight 4 

## of the birds. That implies a wet-weight food ingestion rate of 1.0 g ww/g bw/day. 5 

## Assuming 84 percent moisture content of the worms, EPA estimated a mean food 6 

## ingestion rate of 1.6 g dw/g bw/day. To calculate a 90 th 

## percentile values when both 7 

## means and standard deviations (SDs) are re ported, EPA used the following formula: 8

9


## 90 th 

## percentile = mean + 1.282 SD 10

11 

## Where a SD was not available, as in this cas e, EPA added 25 percent, which resulted in a 12 

## dry-weight food ingestion rate of 0.200 g dw/g bw/day. This approach is based on the 13 

## observation that a typical coeffi cient of variation (CV) for fo od intake is approximately 14 

## 15 to 20 percent for birds and mammals (Nagy 2004). 15

16 

## For purposes of the Pb NAAQS review, how ever, the data reported by Sheldon (1967) 17 

## were considered inadequate for estimating a food ingestion rate for woodcock because 18 

## the sample size, SD, and range of food inge stion rates were not reported, and the birds 19 

## might not have been weighed. 20

21 

## To ensure that the Eco-SSL for each surrogate sp ecies would protect the ma jority of individuals 22 

## in a population, EPA uses the point estimates of high-end exposures (USEPA 2005a). For the 23 

## woodcock, the food ingestion rate of 0.214 is the ar ithmetic mean of the two estimated high-end 24 

## values noted above (i.e., the averag e of 0.229 and 0.200 g dw/g bw/day). 25

26 

## The food ingestion rate of 0.214 g dw/g bw/day is reasonable, although it also would be 27


## reasonable to use the data from woodcock fe d uncontaminated earthworms in Stickel et al. 28 

## (1965) and to exclude the values from Sheldon ( 1967). In that case, th e high-end food ingestion 29 

## rate would be 0.20 g dw/g bw/day. Use of upper-e nd estimates for all exposure parameters at the 30 

## same time can significantly overestimate total exposure. If a mean value were to be used for this 31 

## exposure parameter, a value of 0.73 g ww/g bw/d ay is recommended (mean value for woodcock 32


## fed uncontaminated worms from Stickel et al ., 1965), which equals 0.12 g dw/g bw/day. 33

34

## Appendix L

ICF International L-10 DRAFT – December 2006 

## L.4.1.2 Soil Ingestion Rate 1

2


## Soil intake is calculated as th e total food ingestion rate ( FIR ) multiplied by soil ingestion fraction 3 

## (or proportion) on a dry-weight basis: 4

5 

## Soil intake (g/day) = FIR × P soil 

## 6

7 

## To estimate the soil ingestion fraction ( P soil 

## ), EPA (2005c) used the following model developed 8 

## by Beyer et al. (1994): 9

10



## P soil 

## = [b – y + (a × y)] / [(a × y) – c + b] 11

12


## where: 13

14



## P soil 

## = proportion of soil in di et (g soil/g dry mass diet) 15



## a = digestibility of food (g absorbed/g dry mass ingested) 16


## b = concentration of acid-insol uble ash in food (g/g dry mass) 17



## c = concentration of acid-insol uble ash in soil (g/g dry mass) 18



## y = concentration of acid-insol uble ash in feces (g/g dry mass) 19

20 

## For the development of Eco-SSLs, EPA wa nted to ensure that the value for P soil 

## would be 21 

## protective of the majority of all individuals in a population of the su rrogate species. EPA 22 

## therefore developed a probabilistic analysis for P soil 

## in which a probability distribution function 23 

## (PDF) was assigned to each of the variables in the equation (i.e., to a, b, c, and y ) and used in a 24


## Monte Carlo simulation to estimate the 90 th 

## percentile of P soil 

## . For the woodcock, the following 25


## distributions were assumed: 26

27



## • Digestibility of food (mean = 0.72; SD = 0.051; normally distributed); 28



## • Concentration of acid-insolubl e ash in food (min = 0; max = 0.02; uniformly distributed); 29



## • Concentration of acid-insolubl e ash in soil (min = 0.9; max = 1.0; uniformly distributed); 30


## and 31



## • Concentration of acid-insoluble ash in feces (mean = 0.22; SD = 0.146; normally 32 

## distributed). 33

34 

## The mean and SD for the digestibility value, a , were taken from the Wildlife Exposure Factors 35


## Handbook (Table 4-3 in USEPA 1993). The values for b and c were assumed, based on 36 

## information in Beyer et al. (1994). The mean and SD values for the concentration of acid37 

## insoluble ash in the feces, y , were the mean and SD values re ported by Beyer et al. (1994) for the 38 

## seven samples analyzed. EPA examined the re sults of the Monte Ca rlo analysis assuming 39 

## certain parameters were correla ted, and found no differences from the results of an analysis 40 

## without correlated parameters. EPA therefore used the uncorre lated Monte Carlo analyses to 41 

## estimate soil ingestion fractions. The mean soil ingestion fraction was 0.075, and the upper 90 th 

## 42 

## percentile estimate of the soil ingestion fraction for the woodc ock was 0.164 (Table 3 in USEPA 43 

## 2005c). The latter value was used to calculate the woodcock Eco-SSL. 44

45

## Appendix L

ICF International L-11 DRAFT – December 2006 

## The mean soil ingestion fraction reported by Beye r, et al. (1994) for the woodcock was 0.104 or 1 

## 10.4 percent of its dry weight diet . Beyer et al. (1994) assumed a digestibility of 55 percent for 2


## the woodcock diet based on data that indicated that the metabo lizable energy coefficient for 3 

## woodcock feeding on earthworms is 59 percent (V ander Haegen 1992) and the information that 4 

## digestibilities calculated from dr y matter tend to be slightly lower than those calculated from 5 

## calories. If Beyer et al. (1994) had assumed a digestibility of 72 percent instead, as did EPA, 6 

## then they would have estimated a soil ingestion fraction of 0.058. 7

8 

## Note that based on data presented in EPA’s Wildlife Exposure Factors Handbook (USEPA 9 

## 1993), a digestibility of 72 percent is more reasonable than a valu e of 55 percent for earthworms 10 

## consumed by woodcock. Thus, it was conclude d that a mean soil ingestion fraction for 11 

## woodcock estimated using the data repor ted by Beyer et al. (1994) should be 0.058. 12

13 

## The upper 90 th 

## percentile soil ingesti on fraction of 0.164 estimated by EPA (2005c) from the 14


## Monte Carlo simulation is almost three times hi gher than the mean value of 0.058 that Beyer et 15 

## al. (1994) would have calculated using the same digestibility assumption. Given EPA’s 16 

## assumption of normality for parameters a and y , it appears that there mu st have been some other 17 

## additional differences between the assumptions us ed by Beyer et al. (1994) to estimate a mean 18 

## soil ingestion fraction and the assumptions used in the EPA Monte Carlo analysis. Otherwise, 19 

## using the 25 percent approach (Nagy 2004) noted above for a normally distributed parameter, 20 

## one would expect the 90 th 

## percentile soil ingestio n fraction to be closer to 0.073 (i.e., mean of 21 

## 0.058 + 25% of 0.058) than 0.164. 22

23 

## Beyer et al. (1994) appear to have used a value of 0.9 for c , the concentration acid-insoluble ash 24 

## in soil, and 0.02 for b , the concentration of acid-insoluble ash in the diet, with a very limited 25 

## discussion of the data supporting those assump tions. To be conservative for purposes of 26 

## screening-level assessments for Superfund sites, EPA used 0.9 as a minimum value for c and 27


## 0.02 as a maximum value for b (USEPA 2005c). A more appropriate approach for the Pb 28 

## NAAQS review is to assume a distribution centered on 0.9 for c and 0.02 for b

. 29

30 

## In conclusion, the soil ingestion fraction of 0.164, or 16.4 percent of the dry-weight diet, used in 31 

## estimating the woodcock Eco-SSL is likely to be higher than the 90 th 

## percentile value that might 32 

## have been calculated if Beye r et al.’s (1994) values of c and b were used as central tendency 33 

## values in EPA’s Monte Carlo analysis. Evidence includes that assuming a digestibility of 72 34 

## percent, the mean soil ingestion fraction estimated from the data presented in Beyer et al. (1994) 35 

## would be 0.058, or 5.8 percent of the dry-weight diet, and a 90 th 

## percentile might have been 36 

## closer to 0.073 (see above). Th erefore, it was concluded that a soil ingestion fraction of 0.073 37 

## (see above) to 0.116 (i.e., 0.058 x 2 to be conservative) would be appropriate for the Pb NAAQS 38


## review. 39

40 

## L.4.1.3 Diet Composition 41

42 

## The assumed diet of 100 percent earthworm s for the Eco-SSL follows EPA guidance for 43 

## Superfund screening-level assessments (USEPA 1998b). For the Pb NAAQS review, a more 44 

## nationally representative diet co mposition is appropriate. In seve n studies of woodcock diets in 45


## North America summarized in EPA’s Wildlife Exposure Factors Handbook (USEPA 1993), the 46

## Appendix L

ICF International L-12 DRAFT – December 2006 

## proportion of earthworms in the diet ranged fr om 30 to 99 percent (i.e., values of 30, 67.8, 71, 1 

## 83.4, 87, 87.4, and 99+). The remainder of the diet c onsisted of other soil invertebrates such as 2 

## lepidopteran, dipteran, and coleopt eran larvae. The average value is 75 percent earthworms in 3 

## the diet, and the 90 th 

## percentile is 92 percent. 4

5 

## For the Pb NAAQS review, the average value of 75 percent or a high-en d value of 90 percent 6


## were recommended for the fractions of the woodcoc k diet to be comprised of earthworms. The 7


## remainder of the diet would be 25 or 10 percent soil arthr opods, respectively. 8

9


## L.4.1.4 Earthworm Accumulation of Pb from Soils 10

11 

## To estimate the accumulation of Pb by earthworms from soils, EPA used the Sample et al. (1998) 12 

## analysis. For that analysis, Sample et al. ( 1998) used most of the available earthworm Pb 13 

## accumulation studies to generate a model data set (119 observations); the remainder (126 14 

## observations) was used as a “validation” data set to test the accuracy and predictive utility of the 15 

## UFs and regression models. Earthworm-to-soil upt ake factors (UFs) were calculated for Pb and 16


## were found to have a non-linear relationship with soil Pb concen trations. Sample et al. found 17 

## that a simple regression model of natural-log-transformed concentr ations in soil and earthworms 18 

## did provide a significant fit to the data (p < 0.001 ). Sample et al. (1998) also developed multiple 19 

## regression models incorporating information on soil pH and soil calcium (Ca), both of which can 20 

## affect the tendency of Pb to partition to water. 21

22 

## The multiple regression models found that inclusi on of soil pH contributed significantly to model 23 

## fit for Pb. Soil Ca also contributed significantly to model fit for Pb. However, an attempt to 24 

## evaluate the contribution of both Ca and pH to mode l fit resulted in a small sample size that did 25 

## not show a significant contribution of both para meters at the same time. However, for a 26 

## screening level risk assessment for which soil Ca, and even soil pH, might not have been 27 

## measured, a simple regression model that doe s not include pH or Ca is more useful. 28

29 

## During validation, Sample et al. (1998) found no si gnificant differences in the simple regression 30 

## equations for the “model” and “validation” data sets . Both data sets therefore were combined to 31 

## develop a final regression model for the combined data set of 245 observations (Table 12 in 32 

## Sample et al. 1998), which is what EPA used in the Eco-SSL derivation: 33

34 

## ln( B i 

## ) = 0.807 × ln( Soil i 

## ) – 0.218 35

36 

## Note that although the correlation coefficient, R 2 

## , for this model based on 245 data points was 37 

## only moderate (i.e., 0.58), the probability that th e correlation was due to chance alone was less 38


## than 1/10 th 

## of a percent (i.e., p < 0.0001). The Standard Error (SE) of the estimate of the slope, 39 

## 0.807, was ± 0.044. The SE of the estimate of the intercept, -0.218, was ± 0.245. 40

41 

## Sample et al. (1998) al so provided the upper 90 th 

## percentile UF based on the distribution of the 42 

## UFs in the Pb earthworm/soil database for use as a high-end value if needed. For the Eco-SSLs 43 

## for Pb, EPA chose not to use the upper 90 th 

## percentile UF, and instead used the point estimates 44 

## provided by the regression model (i.e., a central tendency estimate similar to a mean value). 45

46

## Appendix L

ICF International L-13 DRAFT – December 2006 

## For the Pb NAAQS review, the point estimates provided by the regression model are used to 1


## estimate Pb concentrations in earthworms based on Pb concentrations in soils. This regression 2 

## provides a central-tendency estimate. 3

4 

## L.4.1.5 Arthropod Accumulation of Pb from Soils 5

6 

## In the past year, Sample and colleagues have developed models to predict Pb uptake by soil 7 

## arthropods: 2 

## 8

9 

## ln( B i 

## ) = 0.70 × ln( Soil i 

## ) – 1.63 10

11 

## The data are from 24 studies, including 10 No rth American locations: British Columbia, 12 

## Delaware, Illinois, Maryland, Miss ouri, Montana, Oklahoma, Penns ylvania, Tennessee, Virginia, 13 

## and Wyoming. Sixty-eight percent of all observa tions were for Pb, zinc, copper, and cadmium. 14 

## The soil arthropods include spiders, centipedes, millipedes, isopods, cole opterans (e.g., beetles), 15 

## hymenopterans (e.g., wasps), orthopterans (e.g., gra sshoppers), and lepidopterans (e.g., moths). 16 

## For Pb, both insects and the non-inse ct arthropods appeared to have similar Pb uptake rates, and 17 

## therefore all data were combined to estimate a single regression equation for soil arthropods 18 

## (above). The correlation coefficient, R 2 

## , for this regression based on 197 data points is 0.55, 19 

## with a significan ce level of p < 0.0001. 20

21 

## The arthropod model for Pb uptake from soil predicts lower concentr ations in the arthropods than 22


## in earthworms at the same soil concentrations. Exhibit L-4 shows the differences over a range of 23


## soil concentrations. At a soil concentration near EPA’s Eco-SSL for woodcock, 11 mg/kg, the 24 

## concentration of Pb in soil arthropods is less than 20 percent of the c oncentration of Pb in 25


## earthworms. 26

27 

## Exhibit L-4. Estimated Arthropod Pb Con centrations as a Percentage of Estimated 28 

## Earthworm Pb Concentrations (mg/kg dr y weight) for Same Soil Concentrations 29

Soil [Pb] Earthworm [Pb] Soil Arthro pod [Pb] Arth./ Earthworm [Pb] (%)

1 0.80 0.20 25.0

10 5.2 0.98 18.9

50 19 3.0 15.8

100 33 4.9 14.9
1,000 210 25 11.8

10,000 1360 123 9.05



## 30 

## From this information, it was concluded that for the analyses proposed for this Pb NAAQS 31 

## review, a nationally representative SSV for the woodcock would be based on two diet 32 

## components, earthworm and soil arthropods, and th e regression model for Pb uptake from soils 33 

## for arthropods should be used to predict Pb concentrations in that portion of the diet. 34

35

2 

### Unpublished data and models by Brad Sample and Chri stine Arenal from CH2M H ill, Sacramento, California; PowerPoint presentation summarizing results provided to EPA by Brad Sample on June 29, 2006.

## Appendix L

ICF International L-14 DRAFT – December 2006 

## L.4.1.6 Bioavailability of Pb in Soil and in Diet 1

2 

## For the Eco-SSL methodology, EPA stated that it was assumed that Pb was 100 percent absorbed 3 

## from the diet or from soil, and therefore the a ssimilation efficiencies in the original equation 4 

## (Equation 4-1 of USEPA 2005a) are set equal to 1.0 and removed from the equation. This 5 

## follows EPA’s guidance for Superfund screening- level ecological risk assessments (USEPA 6 

## 1998b). However, studies of bioavailability of Pb from the diet or from soils always indicate 7 

## bioavailability factors of less than 100 percent. Therefore, for purposes of the Pb NAAQS 8 

## review, the bioavailability of Pb was examined. 9

10


## The first consideration is how the Eco-SSL TRV for Pb was obtained (i.e., whether was it based 11


## on a Pb concentration as administered in food or water or an estimated absorbed dose). For the 12 

## TRV for Pb for birds, the NOAEL is expressed as Pb administered in an e xperimental diet rather 13 

## than an absorbed dose. If Pb in the experimental diet and Pb in natural di ets and soils are equally 14 

## bioavailable, then no correction is needed for re lative bioavailability (or relative assimilation 15 

## efficiency). However, Pb often is mixed into experimental animal diets (e.g., an artificial 16 

## pelleted dry diet) in a form (e.g., Pb acetate) that may be more bioavailable than the Pb in a 17


## natural diet or in soils. Ther efore, it may be appropriate to a ssign a lower relative assimilation 18 

## efficiency (AE) for Pb in the natural diet and in soils than in the experimental diet upon which 19


## the TRV is based. 20

21


## A literature search was conducted of bioavailabil ity and AEs for birds and mammals for Pb from 22 

## the diet, soils, and water using 20 DIALOG database s: Toxfile, Environmental Sciences, Biosis 23 

## Previews, CSA Life Sciences Abstracts, Envi roline, Pollution Abstract s, National Technical 24 

## Information Services (NTIS), BioEngineering Abst racts, Environmental Engineering Abstracts, 25 

## AGRICOLA, CAB Abstracts, AGRIS , Pascal, WasteInfo, Wilson Appl. Sci & Tech Abs, Biol. 26 

## & Agric. Index, Water Resources Abstracts, Zoological Record Onlin e, ELSEVIER BIOBASE, 27 

## and Aquatic Science & Fisheries Abstracts. N one of the references identified discussed the 28 

## absolute bioavailability or AE for Pb acetat e or other forms of Pb typically added to 29 

## experimental pelleted diets for birds or mammals or the absolute bioavailability of Pb in any 30 

## natural media. These analyses, th erefore, depend on evidence of relative rather than absolute 31


## AE. The results of the search were limited to less than 500 titles for purposes of this risk 32 

## screening assessment; therefore, it is po ssible that some references were missed. 33

34 

## For purposes of the human exposure and health risk assessments, EPA has assumed that the 35 

## absolute bioavailability of Pb in water and diet is 50 percent and in soils ingested by children is 36 

## 30 percent (USEPA 1994). That means that the re lative bioavailability of Pb in soils compared 37 

## with diet and water is 60 percent (i.e., 0.30 di vided by 0.50) for children (USEPA 1994). Studies 38 

## supporting equal AEs for Pb from food and water often use Pb acetate, or other highly soluble 39 

## forms of Pb (e.g., Pb chloride) mixed with food and water (e.g., Mahaffey et al. 1980). 40

41 

## The Agency for Toxic Substances and Disease Re gistry (ATSDR) has summarized available data 42 

## indicating that water-soluble Pb (e.g., from Pb acetate or Pb chloride) is 40 to 50 percent 43 

## absorbed following ingestion by infants and childre n, whereas adults absorb only 3 to 10 percent 44 

## of Pb (if not fasting). Similar differences in absorption of Pb with ag e are observed in monkeys 45 

## and rats (ATSDR 2005). 46

## Appendix L

ICF International L-15 DRAFT – December 2006 1


## There are data to indicate that Pb ingested with food is absorbed less well than Pb ingested in 2 

## water and that Pb ingested in soils is less well ab sorbed than Pb in food. For example, James et 3 

## al. (1985) found absorption of a tracer dose of Pb acetate in water to be approximately 63 percent 4 

## when ingested by fasted subjects but only 3 percent when the dose was administered with a meal. 5 

## Overall, fed-to-fasted ratios of Pb absorption for adult humans ranged from 0.04 to 0.20 in four 6 

## studies reviewed by ATSDR ( 2005), indicating that absorptio n of water-soluble Pb when 7 

## accompanied by food is generally 4 to 20 percent of Pb absorbed when administered in water 8 

## when a subject has no food in the gastrointestinal tract. A comparison of Pb absorbed from soil 9 

## from the Bunker Hill Superfund site by adult hu mans indicated 26 and 2.5 percent absorption by 10 

## fasted adults and those ingesting the soil with a meal, respectively (Maddaloni et al. 2005). Note 11 

## that the amount absorbed from soil by fasted adu lts (i.e., 26 percent) was approximately half that 12 

## absorbed with food by fasted adults (i.e., 63 percent). 13

14


## Few references identified discussed the relative AE of Pb added to pelleted diets of experimental 15


## animals and Pb in natural diets or soils. One st udy did quantify the relati ve oral bioavailability 16


## of Pb in soil collected from a former smelter site in Utah compared with the bioavailability of Pb 17 

## acetate mixed in a purified pelleted diet fed to rats (Schoof et al. 1995). They found a relative 18 

## AE of 41 percent (Pb in smelter soil compared to Pb acetate added to the diet). None of the 19 

## identified references quantified the relative AE of Pb acetate added to pelleted diets of 20 

## experimental animals to the AE of Pb in natural diets. 21

22 

## Ruby et al. (1999) published a review of gastrointestinal bioavailabil ity studies suitable for use in 23 

## human exposure and health risk assessments that included a large database. The bioavailabilities 24 

## of Pb in a variety of soils were expressed as a proportion of the bioavailab ility of soluble Pb in 25 

## drinking water. Pb contaminated soils from a va riety of sources (e.g., resi dential areas, and areas 26 

## near tailings, mills, slags, and smelters) were added to the diet of swine and weanling rats. 27


## Nineteen studies with swine resulted in a mean relative bioavailability of 0.50 (SD of 0.28; range 28 

## of 0.01 to 0.90) 3 

## . These results indicate that Pb in so ils from the environment (not laboratory 29


## soils mixed with Pb acetate or another form of Pb) are, on average, half as well assimilated by 30 

## swine as Pb in water. Nine studies with weanling rats resulted in a mean relative bioavailability 31 

## of 0.21 (SD of 0.13; range of 0.093 to 0.41) 3 

## . Assuming 100 percent as similation of Pb from 32 

## water by rats, this indicates that only 20 percent of Pb in soils is, on average, assimilated by rats. 33

34 

## Overall, the studies discussed above suggest that the oral bioavailability of Pb in soils or food for 35 

## mammals is between 3 and 50 percent of its oral bioavailability when added as soluble Pb acetate 36 

## to food or water. Therefore, the conclusion was r eached that the AE of Pb from natural diets or 37 

## from soils is no more than 50 percent of the AE of Pb in the experimental pellet diets to which 38


## Pb acetate is added. When the TRV is based on experiments conducted with Pb acetate added to 39 

## a dry pellet experimental diet, an AE value of 0.50 is assumed for the screening-level assessment 40 

## for the Pb NAAQS review. 41

42

3 

### Mean and SD values calculated by IC F from Table 1 of Ruby et al. 1999.

## Appendix L

ICF International L-16 DRAFT – December 2006 

## L.4.1.7 Toxicity Reference Value (TRV) 1

2 

## For birds, the geometric mean NOAEL for ade quate Pb toxicity studies of growth and 3 

## reproduction across species was calcu lated as 10.9 mg/kg bw/day. Th at value is higher than the 4 

## lowest bounded LOAEL for one study. Theref ore, the highest bounded NOAEL that was lower 5


## than the lowest bounded LOAEL was used to set the TRV for Pb for birds of 1.63 mg/kg bw/day 6 

## in the development of the Eco-SSL for Pb. This value is not overly conser vative because 2 of 10 7 

## reproductive LOAEL values were lower than 1.63 mg/kg bw/day (those two were unbounded, 8 

## meaning a NOAEL had not been identified). 9

10 

## There are uncertainties associated with having on ly 10 reproductive toxicity studies for birds for 11 

## Pb. Nonetheless, the TRV should be protec tive because it is base d on a NOAEL value, and 12 

## populations of birds may well be able to su stain some loss of reproductive success at the 13


## individual level w ithout consequences on population size. 14



## L.4.2 Calculation of SSVs for Pb for Use in the Pb NAAQS Review 15

16


## Based on the evaluation of indivi dual parameter values discusse d above, a Pb SSV for woodcock 17 

## was estimated using the parameter values identifi ed for the Pb NAAQS review in Section L.4.1. 18 

## The basic equation for estimating the Eco-SSL fo r a bird or mammal as described in Section 19


## L.2.2 is: 20

21


## 1.0 = FIR × [( Soil j 

## × P soil 

## ) + B i 

## ] / TRV 22

23 

## Therefore, the equation for Pb is: 24

25



## TRV = FIR × [( Soil j 

## × P soil 

## ) + exp(0.807 × ln( Soil j 

## ) – 0.218)] 26

27 

## The preceding equation assumes 100 percent earthworm s in the diet and equal bioavailability of 28 

## Pb in the experimental diet used to develop th e TRV, in the natural diet, and in soils. To 29 

## estimate the Eco-SSL, one solves for Soil j



## . 30

31 

## To develop a Pb SSV for woodcock for use in the Pb NAAQS review, soil arthropods were 32 

## included as part of the diet, and 50 percent was used as the relative AE or bioavailability of Pb in 33 

## the natural diet or soil. In this case, the equation is: 34

35



## TRV = FIR × AE × [( Soil j 

## × P soil 

## ) + ( F earthworms 

## × B earthworms 

## ) + ( F soil_arthropods 

## × B soil_arthropods 

## )] 36

37


## where: 38

39


## AE = relative assimilation efficiency for Pb in natural diets and soils 40 

## compared with Pb added to a laboratory diet 41



## F earthworms 

## = fraction of the diet consisting of earthworms 42



## B earthworms 

## = concentration of Pb in the earthworms (mg/kg dry weight) 43



## F soil_arthropods 

## = fraction of the diet consisting of soil arthropods 44



## B soil_arthropods 

## = concentration of Pb in the arthropods (mg/kg dry weight) 45

## Appendix L

ICF International L-17 DRAFT – December 2006 1 

## The equation for Pb then becomes: 2

3



## TRV = FIR × AE × [( Soil j 

## × P soil 

## ) + ( F earthworms 

## × (exp(0.807 × ln( Soil j 

## ) – 0.218))) + 4 

## ( F soil_arthropods 

## × (exp(0.70 × ln( Soil j 

## ) – 1.63))) ] 5

6 

## The preceding equation is solved for Soil j 

## to find the SSV. 7

8


## Exhibit L-5 shows the results of using the parameter values developed for the Pb NAAQS review 9 

## in the equation to estimate an SSV for woodcock exposed to Pb-contaminated soils. 10

11 

## For comparison with the Eco-SSL, the first row s hows parameter values used to derive the Eco12


## SSL for woodcock. The second row indicates that by using values calculated for the Pb NAAQS 13


## review for AE and for the 90 th 

## percentile values for the food inge stion rate (FIR), soil ingestion 14 

## fraction, and the fraction of the di et that is earthworms, the SSV is 34 mg/kg. If one uses the 15 

## average value for the fraction of the diet that is earthworms instead, the SSV for woodcock is 16 

## 38 mg/kg. Finally, if one uses the average value for all parame ters, the SSV for woodcock is 17 

## 83 mg/kg. 18

19 

## Exhibit L-5. Development of the Woodcock SSV for Pb a



### Estimate AE TRV for Pb (mg Pb/kg

bw/day) Food Ingestion Rate (FIR) (kg food

dw/kg bw/day) Soil Ingestion

as a Proportion

of Diet (P soil 

### ) Fraction
of Diet
Earthworms Fraction of
Diet Soil Arthropods SSV (mg Pb/kg dw soil)

EPA Eco-SSL (USEPA 2005a) 100% 1.63 0.214 0.164 100% 0% 11

90 th 

### percentile for all parameters; AE
= 0.50 b 

### 50% 1.63 0.20 0.114 90% 10% 34

90 th 

### percentile for
FIR and soil ingestion; mean fraction diet; AE =
0.50 c 

### 50% 1.63 0.20 0.114 75% 25% 38

Mean value for all parameters; AE =
0.50 d 

### 50% 1.63 0.12 0.058 75% 25% 83

a 

### Abbreviations: AE = relative assimilation efficiency for Pb in natural diet and soils compared with AE of water soluble Pb added to the experimental diet used to derive the toxicity reference value (TRV); bw = body weight; dw = dry weight

b 

### Uses 90 th 

### percentile values for FIR and soil ingestion rate with 90 th 

### percentile proportion of the diet equal to
earthworms.

c 

### Uses 90 th 

### percentile values for FIR and soil ingestion rate with mean proportion of the diet equal to earthworms.

d 

### Uses average value for FIR, soil ingestion rate, and proportion of the diet comprised of earthworms.
Note: All estimates use central tenden cy estimate of concentration of Pb in earthworms and soil arthropods.



## 20 

## When estimating a benchmark to use when screeni ng for ecological risks, it is most appropriate 21


## to use 90 th 

## percentile values for no more than two pa rameters in the same exposure equation. 22 

## Therefore, 38 mg/kg was identified as the most appropriate estimate of an SSV for birds for the 23 

## screening-level ecological risk a ssessment in the Pb NAAQS review. This value is based on a 24

## Appendix L

ICF International L-18 DRAFT – December 2006 

## conservative estimate of the relative bioavailability of Pb in soil and natural diets compared with 1 

## water soluble Pb added to an experimental pellet diet. A recent site-specific determination found 2


## that a soil concentr ation of 490 mg/kg 4 

## is protective of birds that consume soil invertebrates at 3 

## that location. These findings in a site-specific st udy suggest that the values of 38 mg/kg or even 4 

## 83 mg/kg might still be overly conservative. Ho wever, for purposes of the Pb NAAQS review, a 5 

## value of 38 mg/kg is appropriate as a “no-effect ” level for the initial screening-level ecological 6 

## risk assessment. A value of 83 mg /kg might be suitable for use as a “possible-effect level” for a 7 

## risk screening assessment. Where that valu e is exceeded, a more refined ecological risk 8 

## assessment would be required to define the po ssible magnitude of ecological risks if that 9 

## information is needed for a risk management decision. 10

11 

## To develop a mammalian SSV for the Pb NAAQS revi ew, a simple calculation is to apply an AE 12 

## of 50 percent to the mammalian Eco-SSL. That would result in an SSV based on the shrew of 13 

## 112 mg Pb/kg soil dry weight. The value of 112 mg /kg is likely to be more conservative than 14 

## necessary because the proportion of earthworms in the diet of sh rews is less than 100 percent 15 

## (data available in USEPA 1993). 16

4 

### Brad Sample, personal communication, June 29, 2006, with Margaret McVey; data not yet available for peer
review.

## Appendix L

ICF International L-19 DRAFT – December 2006 1


## References 2

3 

## Agency for Toxic Substances and Disease Registry (ATSDR). (2005) Draft Toxicological 4 

## Profile for Lead. Atlanta, GA: U.S. Department of Hea lth and Human Services, Pubic Health 5 

## Service. September. 6

7 

## Beyer, W.N., Connor, E.E., and Gerould, S. (199 4) Estimates of soil ingestion by wildlife. J. 8 

## Wildl. Manage . 58(2):375-382. 9

10 

## Gustavsson, N., B ǿ lviken, B., Smith, D.B., and Severson, R.C. (2001) Geochemical 11 

## Landscapes of the Conterminous United States – New Map Presentations for 22 Elements. U.S. 12 

## Geological Survey Professional Paper 1648. Washi ngton, DC: U.S. Department of the Interior. 13 

## Available online at: http://geology.cr.usgs.gov/pub/ppapers/p1648/ 14

15 

## James, H.M., Hilburn, M.E., and Blair, J.A. (198 5) Effects of meals and meal times on uptake 16 

## of lead from the gastrointe stinal tract of humans. Hum. Toxicol . 4: 401-407. 17

18 

## Maddaloni,M., Bellew,M., Diamond,G., Follansb ee,M., Gefell,D., Goodrum,P., Johnson,M., 19 

## Koporec,K., Khoury,G., Luey,J., Odin,M., Troast,R., Van,L.P., and Zaragoza,L. (2005) Assessing Lead 20


## Risks at Non-Residential Hazardous Waste Sites. Human and Ecological Risk Assessment 11:967-1005 21

22 

## Mahaffey, K.R., Rader, J.I., Schaefer , J.M., and Dramer, S.N. (1980) Comparative toxicity to rats of 23


## lead acetate from food or water. Bull. Environ. Contam. Toxicol. 25: 541-546. 24

25 

## Nagy, K.A. (2004) Personal co mmunication with EPA (As c ited in USEPA 2005c .) 26

27 

## Ruby, M.V., Schoof, R., Brattin, W., et al. (1999) Advances in eval uating the oral bioavailability of 28 

## inorganics in soil for use in human health risk assessment. Environ. Sci. Technol. 33(21): 3697-3705. 29

30 

## Sample, B.E., Beauchamp, J.J., Efroymson, R.A., Suter, G.W. II, and Ashwood, T.L. (1998) 31 

## Development and Validation of Bioaccu mulation Models for Earthworms. Oak Ridge, TN: Oak 32 

## Ridge National Laboratory. ES/ER/TM-86/R3. 33

34 

## Schoof, R. A., Butcher, M. K., Sells tone, C., Ball, R. W., Fr icke, J. R., Keller, V ., and Keehn, B. (1995) 35 

## An Assessment of Lead Absorption fr om Soil Affected by Smelter Emissions. Environmental 36 

## Geochemistry and Health. 17(4): 189-199. 37

38 

## Shacklette, H.T., and Boerngen, J.G. (1984) Element Concentrations in Soils and Other Surficial 39 

## Materials of the Conterminous United States. U.S. Geological Survey Professional Paper 1270. 40 

## Washington, DC: U.S. Govern ment Printing Office. 63 pp. 41

42 

## Sheldon, W.G. (1967) The Book of the American Woodcock . Amherst, MA: University of 43


## Massachusetts Press. 44

45

## Appendix L

ICF International L-20 DRAFT – December 2006 

## Stickel, W.H., Hayne, D.W., Stickel, L.F. (1965) Effects of heptachlor-contaminated 1


## earthworms on woodcocks. J. Wildl. Manage . 29: 132-146. 2

3 

## U.S. Environmental Protection Agency (USEPA). (1993) Wildlife Exposure Factors Handbook, 4


## Volumes I and II . Washington, DC: Office of Resear ch and Development. EPA/600/R5 

## 93/187a,b. Prepared by ICF C onsulting, M. McVey et al. 6

7 

## U.S. Environmental Protection Agency (USEPA). (1994) Guidance Manual for the Integrated 8 

## Exposure Uptake Biokinetic Model for lead in Children . Washington, DC: Office of Emergency 9 

## and Remedial Response. EPA/540/R-93/081. 10

11 

## U.S. Environmental Protection Agency (USEPA). (1998a) Guidelines for Ecological Risk 12


## Assessment . Washington, DC: Risk Asse ssment Forum. EPA/630/R-95/002F. 13

14 

## U.S. Environmental Protection Agency (USEPA). (1998b) Ecological Risk Assessment 15 

## Guidance for Superfund: Process for Designing and Conducting Ecological Risk Assessments, 16


## Interim Final. Washington, DC: Office of Solid Wast e and Emergency Response. EPA 540/R17 

## 97/006; OSWER 9285.7-25; PB97-963211. 18

19 

## U.S. Environmental Protection Agency (USEPA). (2005a) Guidance for Developing Ecological 20 

## Soil Screening Levels. Washington, DC: Office of Solid Waste and Emergency Response. 21 

## OSWER Directive 9285.7-55. November 2003, Revised 2005. 22

23 

## U.S. Environmental Protection Agency (USEPA). (2005b) Ecological Soil Screening Levels for 24 

## Lead, Interim Final. Washington, DC: Office of Solid Waste and Emergency Response. OSWER 25


## Directive 9285.7-61. 26

27 

## U.S. Environmental Protection Agency (USEPA). (2005c) Guidance for Developing Ecological 28 

## Soil Screening Levels (Eco-SSLs), Attachment 1-4: Exposure Factors and Bioaccumulation 29 

## Models for Derivation of Wildlife Eco-SSLs. Washington, DC: Office of Solid Waste and 30 

## Emergency Response. OSWER Directive 9285.7 -55. November 2003, Revised February 2005. 31

32 

## Vander Haegen, W. M. (1992). Bioenergetics of the Americ an woodcock during the breeding 33


## season on Moosehorn National Wildlife Refuge, Maine, Ph.D. Thesis, Univ. Maine, Orono. (As 34 

## cited in Beyer et al. 1994.) 35

# Appendix M

Sediment Screening Levels

## Appendix M

ICF International M-1 DRAFT – December 2006 

## Appendix M summarizes sediment ecotoxicity scr eening values for the protection of aquatic 1 communities that comply with EPA guidance for use in screening-level ecological risk 2 assessments. Sediment screening values have been developed for the protection of benthic 3 aquatic community—none of which are based on wildlife ingestion of sediments—and include 4 EPA regional screening values, National Ocean ic and Atmospheric Administration (NOAA) 5 marine values, Canadian freshwater values, Un ited States “consensus” freshwater values, and 6 EPA’s national-level equilibrium partitioning appro ach to deriving sediment quality criteria for 7
freshwaters. 8

9 Many of the sediment screening values include more than one effect level for potential use. This 10 fact reflects in part the difficulty in assessi ng a “single point” criter ion across all sediment 11 conditions that might protect 95 percent of the aquatic species, as has been EPA’s tradition for 12 deriving Ambient Water Quality Criteria (AWQC) for aquatic organisms exposed to chemicals 13 in the water column. Overall, va rious definitions of effect leve ls have been used: no effect, 14 threshold for effect, low effect/low risk of effect, may have an effect, probable adverse effect, 15
and severe effect. Some criteria present two effect levels and others present three effect levels. 16 The two-effect-level benchmarks generally have a no-effect or low-risk -of-effect level and a 17 probable- or severe-effect level. The three-eff ect-level benchmarks have a no- or low-effect 18 level, a possible- or thres hold-effect level, and a proba ble-adverse-effect level. 19

20 The sediment screening values are expressed as to tal Pb in sediments on a dry weight basis, with 21 no adjustment for differing sediment conditions , with the exception of EPA’s equilibrium 22 partitioning approach. The latter essentially pr ovides equations to estimate the dissolved 23 concentration of Pb in sediment pore waters for comparison with the chronic AWQC based on 24
several sediment characteristics. Because EPA’s equilibrium partitioning approach requires data 25 on acid volatile sulfide ( AVS), total organic carbon (TOC), and fraction organic carbon (FOC) 26 (USEPA 2005), it cannot be used in this screening assessment because these data have not been 27
identified for the waterbodies of interest in th e primary Pb smelter case study. Note that these 28
characteristics are not included in national water quality databases and hist orically have rarely 29 been measured at any location. 30

31 Two of the available screening ecotoxicity criteria for freshwat er sediments, the Canadian 32 Sediment Quality Guidelines and the consensus- based values, were evaluated for use in the 33 surface water and sediment screening assessment. These two criteria are described in this 34 appendix to highlight different a pproaches to identifying specific benchmark effect levels and to 35 describe the approach selected for this pilo t phase analysis (See Sections M.1 and M.2). 36

## Appendix M

ICF International M-2 DRAFT – December 2006 

## M.1 Canadian Sediment Quality Guidelines 1

2 U.S. EPA Region 6 uses the Canadian Sediment Quality Guidelines, threshold-effect levels 3 (TELs) (Smith et al. 1996). The value for Pb is 35 mg/kg dry sediment. The Canadian values 4 are adopted from an approach used by NOAA wi th some modifications for freshwaters and an 5 expansion of the database to incorporate freshw ater sediment toxicity data. The sediment 6
concentrations for the effects data set and th e no-effects data set we re arranged in ascending 7 order of chemical concentrations, and TELs and probable-effects levels (PELs) were derived for 8 those chemicals having at least 20 data entries in both data sets (fro m Appendix A of TNRCC 9 2001). 10

11 The TEL was calculated to be the geometric mean of (1) the 15th percentile concentration of the 12 effects data set and (2) the 50th percentile concen tration of the no-effects data set. The TEL was 13 intended to estimate the concentration for a gi ven chemical below which adverse biological 14 affects only rarely occurred. The PEL was calcula ted to be the geometric mean of (1) the 50th 15 percentile concentration of the e ffects data set and (2) the 85th percentile of the no-effects data 16 set. The PEL was intended to represent the concentration for a give n chemical above which 17 adverse biological affects frequently occurred. Smith et al. (1996) evaluated the reliability of the 18 Canadian guidelines, and compared them with other guidelines. With the exception of the TEL 19 for total DDT, the reliability of the TELs app eared to be high based on the lack of observed 20
adverse effects at concentrations below the TELs. Overall, the authors concluded that the TELs 21 and PELs were comparable to other sediment qua lity assessment approaches, and that the TELs 22 could be used with a high degree of confidence to indicate chemical concentrations below which 23 adverse biological effects would not be expected to occur. 24

25 M.2 Consensus Approach 26

27 Both EPA Regions 4 and 5 use sediment toxicity benchmarks derived by a consensus approach 28 as described by MacDonald et al. (2000). The co nsensus approach has been adopted by the State 29

of Florida in its Numerical Sediment Quality Assessment Guidelines for Florida Inland Waters, 30 Technical Report (MacDonald et al. 2003). This report resulted from a cooperative Freshwater 31 Sediment Quality Assessment Initiative that began in 2000 and that included the Florida 32 Department of Environmental Protection (FDEP), EPA, and the U.S. Geological Survey (USGS), 33 with participants from the U.S. Fish and Wildlife Service (USFWS), NOAA, consultants, 34 academics, county governments, and water management districts. The Ini tiative includes three 35 elements, one of which is the establishment of numerical, sediment quality assessment guidelines 36 (SQAGs) for assessing the potential for adverse biological effects associated with exposure to 37
contaminated sediments. The effects-based S QAGs for the benthic community are intended to 38 identify two levels of contaminants in sediments: (1) concentrations th at are unlikely to cause 39 adverse effects, or threshold eff ect concentrations (TECs), and (2) concentrations that are likely 40 to cause adverse effects on sediment-dwelling or ganisms, or probable effect concentrations 41 (PECs). 42

43 Based on an evaluation of eight distinct approa ches for developing “sediment quality guidelines” 44 (SQGs) (i.e., sediment quality criteria, standards, or objectives, depending on the agency), the 45

## Appendix M

ICF International M-3 DRAFT – December 2006 

## Initiative working group recommended the consen sus-based approach. The eight approaches 1
reviewed were: 2

3

• Screening level con centration approach; 4

• Effects range approach; 5

• Effects level approach; 6

• Apparent effects threshold approach; 7

• Equilibrium partitioning approach; 8

• Logistic regression modeling approach; 9

• Consensus approach; and 10

• Tissue residue approach. 11

12 The report also describes the four basic types of information that are commonly used to assess 13
contaminated sediments: whole-sediment a nd pore-water chemistry data; whole-sediment 14 toxicity data; benthic invertebrate commun ity structure data; and bioaccumulation data. 15

16 The consensus-based TECs are calculated by de termining the geometric mean of the SQGs 17 available for that chemical. Likewise, consensu s-based PECs are calculated by determining the 18 geometric mean of the PEC-type values. The ge ometric mean, rather than the arithmetic mean, 19 is used because it provides an estimate of central tendency that is not undu ly affected by outliers 20 and because the SQGs might not be normally di stributed. Consensus-based TECs or PECs are 21 calculated only if three or more published SQGs are available fo r a chemical substance or group 22 of substances (MacDonald et al. 2000). 23

24 The consensus-based TEC for Pb of 35.8 mg/kg dr y weight (Table 4.4 in MacDonald et al. 2003, 25 from MacDonald et al. 2000) was calculated as the geometric m ean of the following values: 26
27

• Lowest-observed effect le vel (LEL) of 31 mg/kg from Persaud et al. (1993); 28

• Threshold effect level (TEL) of 35 mg/kg from Smith et al. (1996); 29

• Effects range-low (ER-L) value of 35 mg/kg from Long and Morgan (1991); 30

• Threshold-effect level for the amphipod Hyalella azteca in 28-day tests (TEL-HA28) of 31 37 mg/kg (USEPA 1996); and 32

• Minimal effect threshold (MET) of 42 mg /kg from Environment Canada (EC) and 33
Ministere de l’Environnement du Quebec (MENVIQ) (1992). 34
35 The consensus-based PEC for Pb of 128 mg/kg dr y weight (Table 4.5 in MacDonald et al. 2003, 36 from MacDonald et al. 2000) was calculated as the geometric mean of the following values: 37
38

• Severe effect level (SEL) of 250 mg/kg (Persaud et al. 1993); 39

• Probable effect level (PEL) of 91.3 mg/kg (Smith et al. 1996); 40

• Effects range-median (ER-M) value of 110 mg/kg (Long and Morgan 1991); 41

• Probable effect level for Hyalella azteca in 28-day tests (PEL-HA28) of 82 mg/kg 42 (USEPA 1996); and 43

• Toxic effect threshold (TET) of 170 mg/kg from (EC and MENVIQ 1992). 44
45

## Appendix M

ICF International M-4 DRAFT – December 2006 

## The working group considered the consensus-base d TEC and PEC values to be appropriate for 1 the United States as a whole, and some analyses were conducted to determine whether they were 2
suitable for Florida sediments. Based on those an alyses, the working group concluded that they 3 were appropriate (MacD onald et al. 2003). 4

5

6

## Appendix M

ICF International M-5 DRAFT – December 2006 

## References 1

2 EC and MENVIQ (Environment Canada and Minist ere de l’Environnement du Quebec). (1992) 3 Interim Criteria for Quality Assessment of St. Lawrence River Sediment. Ottawa, Ontario: 4
Environment Canada. ISBN 0-662-19849-2. 5

6 Long, E.R., and Morgan, L.G. (1991) The Potential for Biological Effects of Sediment-sorbed 7 Contaminants Tested in the National Status and Trends Program . NOAA Technical Memorandum 8 NOS OMA 52. Seattle, WA: Nati onal Oceanic and Atmospheri c Administration. 175 pp and 9 Appendices. 10

11 MacDonald, D.D., Ingersoll, C.G., and Berger , T.A. (2000) Development and evaluation of 12 consensus-based sediment quality guidelines for freshwater ecosystems. Arch. Environ. Contam. 13

Toxicol. 39: 20-31. 14

15 MacDonald, D.D., Ingersoll, C.G., Smorong, D.E., Lindskoog, R.A., Sloane, G., and Biernacki, T. 16 (2003) Development and Evaluation of Numerical Sediment Quality Assessment Guidelines for Florida 17
Inland Waters . Technical Report. Prepared for: Florid a Department of Environmental Protection, 18 Tallahasee, Florida. Prepared by: MacDonald Envi ronmental Sciences, Lt., British Columbia and U.S. 19 Geological Survey, Columbia Missouri. January. 20

21 Persaud, D., Jaagumagi, R., and Hayton, A. (1993) Guidelines for the Protection and 22 Management of Aquatic Sedi ment Quality in Ontario. Canada: Ontario Ministry of the 23 Environment and Energy. August. 24

25 Smith, S.L., MacDonald, D.D., Keenleyside, K.A ., Ingersoll, C.G., and Field. L.J. (1996) A 26 preliminary evaluation of sediment quality asse ssment values for freshwater ecosystems. J. 27
Great Lakes Res. 22(3):624-638. 28

29
Texas Natural Resource Cons ervation Commission (TNRCC). (2001) Guidance for Conducting 30 Ecological Risk Assessments Remediation S ites in Texas. RG-263 (revised). December. 31 Available at http://www.tceq.state.tx. us/comm_exec/forms_pubs/pubs/rg/rg-263_189521.pdf 32

33 U.S. Environmental Protection Agency (USEPA). (1996) Calculation and Evaluation of 34 Sediment Effect Concentrations for the Am phipod Hyalella azteca and the Midge Chironomus 35 ripariu. EPA 905-R96-008, Great Lakes National Program Office, Chicago, Ill. 36

37 U.S. Environmental Protection Agency (USEPA). (2005) Procedures for the Derivation of 38 Equilibrium Partitioning Sediment Benchmarsk (EBSs) for the Protectio n of Benthic Organisms: 39 Metal Mixtures (Cadmium, Copper, Lead, Nickel, Silver, and Zinc). Washington, DC: Office of 40 Research and Development. EPA-600-R-02-011. 41

42