Preliminary Assessments
and Site Inspections Report
Upper Columbia River Mines and Mills
Stevens County, Washington
TDD: 01-02-0028

Contract: 68-S0-01-01
October 2002

Region 10

START-2

Superfund Technical Assessment and Response Team

Submitted To: Monica Tonel, Task Monitor
United States Environmental Protection Agency
1200 Sixth Avenue
Seattle, Washington 98101


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PRELIMINARY ASSESSMENTS AND SITE INS PEC HONS REPORT
UPPER COLUMBIA RIVER MINES AND MILLS
STEVENS COUNTY, WASHINGTON

TABLE O F C O NTENTS

Section	Page

1.	INTRODUCTION	 1-1

2.	BACKGROUND 	2-1

2.1	MINE/MILL OWNERSHIP	2-1

2.2	REGIONAL OPERATIONS AND WASTE CHARACTERISTICS	2-1

2.2.1 Historic Mining	2-1

3.	FIELD ACTIVITIES AND ANALYTICAL PROTOCOL 	3-1

3 .1 SAMPLING METHODOLOGY	3-2

3.1.1	EPA CLP Surface Soil Samples 	3-2

3.1.2	EPA CLP Sediment Samples 	3-3

3.1.3	EPA CLP Surface Water Samples 	3-3

3.2 ANALYTICAL PROTOCOLS	3-3

3 .3 GLOBAL POSITIONING SYSTEM	3-3

3.4 INVESTIGATION-DERIVED WASTE	3-4

4.	QUALITY ASSURANCE/QUALITY CONTROL 	4-1

4.1	SATISFACTION OF DATA QUALITY OBJECTIVES	4-2

4.2	QUALITY ASSURANCE/QUALITY CONTROL SAMPLES	4-2

4.3	PROJECT-SPECIFIC DATA QUALITY OBJECTIVES 	4-3

4.3.1	Precision	4-3

4.3.2	Accuracy	4-3

4.3.3	Completeness 	4-3

4.3.4	Representativeness 	4-4

4.3.5	Comparability	4-4

4.4	LABORATORY QUALITY ASSURANCE/QUALITY CONTROL
PARAMETERS	4-4

4.4.1	Holding Times	4-4

4.4.2	Laboratory Blanks	4-4

5.	ANALYTICAL RESULTS REPORTING AND BACKGROUND SAMPLES	5-1

5 .1 ANALYTICAL RESULTS EVALUATION CRITERIA	5-1

5.2 BACKGROUND SAMPLES	5-3

5.2.1	Background Surface Soil	5-3

5.2.1.1	Sample Locations 	5-3

5.2.1.2	Sample Results	5-4

5.2.2	Background Sediment	5-4

5.2.2.1	Sample Locations 	5-4

5.2.2.2	Sample Results	5-5

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TABLE OF CONTENTS (CONTINUED)

Section	Page

6. MINES AND MILLS, LOCATIONS/DESCRIPTIONS, START-2 VISITS	6-1

6.1	DAISY MINE 	6-1

6.1.1	Mine Location	6-1

6.1.2	Historical Information 	6-1

6.1.3	Mine Description/Features	6-2

6.1.4	START-2 Mine Visit	6-2

6.1.5	Sampling Locations	6-2

6.1.6	Analytical Results 	6-3

6.1.6.1	Surface Soil Sample Results 	6-3

6.1.6.2	Surface Water Sample Results 	6-3

6.1.6.3	Sediment Sample Results 	6-3

6.2	L-BAR/NORTHWEST MAGNESITE 	6-3

6.2.1	Plant Location 	6-3

6.2.2	Historical Information 	6-4

6.2.3	Plant Description/Features	6-5

6.2.4	ST ART-2 Visit 	6-6

6.2.5	Sampling Locations	6-7

6.2.6	Analytical Results 	6-7

6.2.6.1 Sediment Sample Results 	6-7

6.3	NORTHWEST ALLOYS	6-8

6.3.1	Plant Location 	6-8

6.3.2	Historical Information 	6-8

6.3.3	Plant Description/Features	6-8

6.3.4	ST ART-2 Visit 	6-11

6.3.5	Sampling Locations	6-11

6.3.6	Analytical Results 	6-11

6.3.6.1 Sediment Sample Results 	6-11

6.4	NAPOLEON MINE/MILL 	6-11

6.4.1	Mine/Mill Location	6-11

6.4.2	Historical Information 	6-12

6.4.3	Mine/Mill Description/Features	6-12

6.4.4	START-2 Mine/Mill Visit 	6-12

6.4.5	Sampling Locations	6-13

6.4.6	Analytical Results 	6-13

6.4.6.1	Surface Water Sample Results 	6-13

6.4.6.2	Sediment Sample Results 	6-13

6.5	FIRST THOUGHT MINE	6-13

6.5.1	Mine Location	6-13

6.5.2	Historical Information and Mine Description/Features	6-13

6.5.3	START-2 Mine Visit	6-14

6.6	LOTTIE MINE	6-14

6.6.1	Mine Location	6-14

6.6.2	Historical Information and Mine Description/Features	6-14

6.6.3	START-2 Mine Visit	6-15

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TABLE OF CONTENTS (CONTINUED)

Section	Page

6.7	HOMESTAKENO. 1 MINE	6-15

6.7.1	Mine Location	6-15

6.7.2	Historical Information and Mine Description/Features	6-15

6.7.3	START-2 Mine Visit	6-16

6.8	ANTELOPE MINE	6-16

6.8.1	Mine Location	6-16

6.8.2	Historical Information and Mine Description/Features	6-16

6.8.3	START-2 Mine Visit	6-16

6.9	HUBBARD MINE	6-17

6.9.1	Mine Location	6-17

6.9.2	Historical Information and Mine Description/Features	6-17

6.9.3	START-2 Mine Visit	6-17

6.10	NEW LEADVILLE MINE 	6-18

6.10.1	Mine Location	6-18

6.10.2	Historical Information and Mine Description/Features	6-18

6.10.3	START-2 Mine Visit	6-18

6.11	RJ. MINE 	6-19

6.11.1	Mine Location	6-19

6.11.2	Historical Information and Mine Description/Features	6-19

6.11.3	START-2 Mine Visit	6-19

6.12	VAN STONE MINE/MILL 	6-20

6.12.1	Mine/Mill Location	6-20

6.12.2	Historical Information 	6-20

6.12.3	Mine/Mill Description/Features	6-21

6.12.4	START-2 Mine/Mill Visit 	6-22

6.12.5	Sampling Locations	6-23

6.12.6	Analytical Results 	6-25

6.12.6.1	Surface Soil Sample Results	6-25

6.12.6.2	Surface Water Sample Results	6-25

6.12.6.3	Sediment Sample Results	6-25

6.13	HOPE AND TWIN CABINS MINE	6-26

6.13.1	Mine Location	6-26

6.13.2	Historical Information and Mine Description/Features	6-26

6.13.3	START-2 Mine Visit	6-26

6.14	ST. CRISPIN MINE 	6-27

6.14.1	Mine Location	6-27

6.14.2	Historical Information and Mine Description/Features	6-27

6.14.3	START-2 Mine Visit	6-27

6.15	NORTHPORT MILL 	6-27

6.15.1	Mill Location 	6-27

6.15.2	Historical Information and Mill Description/Features 	6-28

6.15.3	EPA Visit 	6-29

6.16	LEROI/NORTHPORT SMELTER 	6-30

6.16.1	Smelter Location	6-30

6.16.2	Historical Information 	6-30

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TABLE OF CONTENTS (CONTINUED)

Section	Page

6.16.3	Smelter Description/Features	6-31

6.16.4	START-2 Smelter Visit 	6-33

6.16.5	Sampling Locations	6-34

6.16.6	Analytical Results 	6-34

6.16.6.1	Surface Soil Sample Results	6-34

6.16.6.2	Sediment Sample Results	6-35

6.17	BLACK ROCK MINE/MILL	6-35

6.17.1	Mine/Mill Location	6-35

6.17.2	Historical Information 	6-36

6.17.3	Mine/Mill Description/Features	6-36

6.17.4	START-2 Mine/Mill Visit 	6-36

6.17.5	Sample Locations 	6-37

6.17.6	Analytical Results 	6-37

6.17.6.1 Surface Soil Sample Results	6-37

6.18	GREAT WESTERN MINE 	6-38

6.18.1	Mine Location	6-38

6.18.2	Historical Information 	6-38

6.18.3	Mine Description/Features	6-38

6.18.4	START-2 Mine Visit	6-39

6.18.5	Sampling Locations	6-39

6.18.6	Analytical Results 	6-39

6.18.6.1 Surface Soil Sample Results	6-39

6.19	LAST CHANCE MINE/MILL	6-40

6.19.1	Mine/Mill Location	6-40

6.19.2	Historical Information 	6-40

6.19.3	Mine/Mill Description/Features	6-40

6.19.4	START-2 Mine/Mill Visit 	6-41

6.19.5	Sampling Locations	6-41

6.19.6	Analytical Results 	6-42

6.19.6.1	Surface Soil Sample Results	6-42

6.19.6.2	Surface Water Sample Results	6-43

6.19.6.3	Sediment Sample Results	6-43

6.20	DEEP CREEK MINE 	6-43

6.20.1	Mine Location	6-43

6.20.2	Historical Information 	6-43

6.20.3	Mine Description/Features	6-44

6.20.4	START-2 Mine Visit	6-44

6.20.5	Sampling Locations	6-45

6.20.6	Analytical Results 	6-46

6.20.6.1	Surface Soil Sample Results	6-46

6.20.6.2	Surface Water Sample Results	6-47

6.21	COPPER KING MINE 	6-47

6.21.1	Mine Location	6-47

6.21.2	Historical Information 	6-47

6.21.3	Mine Description/Features	6-47

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TABLE OF CONTENTS (CONTINUED)

Section	Page

6.21.4	START-2 Mine Visit	6-48

6.21.5	Sample Locations 	6-48

6.21.6	Analytical Results 	6-49

6.21.6.1	Surface Soil Sample Results	6-49

6.21.6.2	Surface Water Sample Results	6-49

6.21.6.3	Sediment Sample Results	6-49

6.22	SIERRA ZINC MINE/MILL 	6-49

6.22.1	Mine/Mill Location	6-49

6.22.2	Historical Information 	6-50

6.22.3	Mine/Mill Description/Features	6-50

6.22.4	START-2 Mine/Mill Visit 	6-50

6.22.5	Sampling Locations	6-51

6.22.6	Analytical Results 	6-52

6.22.6.1	Surface Soil Sample Results	6-52

6.22.6.2	Surface Water Sample Results	6-52

6.23	MAGMA MINE 	6-52

6.23.1	Mine Location	6-52

6.23.2	Historical Information and Mine Description/Features	6-53

6.23.3	START-2 Mine Visit	6-53

6.24	FARMER MINE 	6-53

6.24.1	Mine Location	6-53

6.24.2	Historical Information and Mine Description/Features	6-54

6.24.3	ST ART -2 Mine Visit	6-54

6.25	MAKI MINE	6-54

6.25.1	Mine Location	6-54

6.25.2	Historical Information and Mine Description/Features	6-54

6.25.3	START-2 Mine Visit	6-55

6.26	ELECTRIC POINT MINE/MILL 	6-55

6.26.1	Mine/Mill Location	6-55

6.26.2	Historical Information 	6-55

6.26.3	Mine/Mill Description/Features	6-55

6.26.4	START-2 Mine/Mill Visit 	6-56

6.26.5	Sampling Locations	6-56

6.26.6	Analytical Results 	6-57

6.26.6.1 Surface Soil Sample Results	6-57

6.27	GLADSTONE MINE/MILL 	6-57

6.27.1	Mine/Mill Location	6-57

6.27.2	Historical Information 	6-58

6.27.3	Mine/Mill Description/Features	6-58

6.27.4	START-2 Mine/Mill Visit 	6-58

6.27.5	Sampling Locations	6-59

6.27.6	Analytical Results 	6-59

6.27.6.1 Surface Soil Sample Results	6-59

6.28	LUCKY FOUR MINE	6-60

6.28.1 Mine Location	6-60

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TABLE OF CONTENTS (CONTINUED)

Section	Page

6.28.2	Historical Information and Mine Description/Features	6-60

6.28.3	START-2 Mine Visit	6-60

6.29	RED TOP MINE	6-60

6.29.1	Mine Location	6-60

6.29.2	Historical Information 	6-61

6.29.3	Mine Description/Features	6-61

6.29.4	START-2 Mine Visit	6-61

6.29.5	Sample Locations 	6-62

6.29.6	Analytical Results 	6-62

6.29.6.1 Surface Soil Sample Results	6-62

6.30	ANDERSON CALHOUN MINE/MILL 	6-62

6.30.1	Mine/Mill Location	6-62

6.30.2	Historical Information 	6-62

6.30.3	Mine/Mill Description/Features	6-63

6.30.4	START-2 Mine/Mill Visit 	6-63

6.30.5	Sampling Locations	6-65

6.30.6	Analytical Results 	6-66

6.30.6.1	Surface Soil Sample Results	6-66

6.30.6.2	Surface Water Sample Results	6-66

6.30.6.3	Sediment Sample Results	6-67

6.31	LUCILE MINE	6-67

6.31.1	Mine Location	6-67

6.31.2	Historical Information and Mine Description/Features	6-67

6.31.3	START-2 Mine Visit	6-67

6.32	IROQUOIS MINE	6-68

6.32.1	Mine Location	6-68

6.32.2	Historical Information 	6-68

6.32.3	Mine Description/Features	6-68

6.32.4	ST ART -2 Mine Visit	6-69

6.32.5	Sampling Locations	6-69

6.32.6	Analytical Results 	6-70

6.32.6.1	Surface Soil Sample Results	6-70

6.32.6.2	Surface Water Sample Results	6-70

6.33	SILVER QUEEN MINE	6-70

6.33.1	Mine Location	6-70

6.33.2	Historical Information 	6-70

6.33.3	Mine Description/Features	6-71

6.33.4	START-2 Mine Visit	6-71

6.34	MELROSE MINE 	6-72

6.34.1	Mine Location	6-72

6.34.2	Historical Information 	6-72

6.34.3	Mine Description/Features	6-72

6.34.4	START-2 Mine Visit	6-72

6.34.5	Sample Locations 	6-73

6.34.6	Analytical Results 	6-73

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TABLE OF CONTENTS (CONTINUED)

Section	Page

6.34.6.1	Surface Water Sample Results	6-73

6.34.6.2	Sediment Sample Results	6-73

6.35	LAKEVIEW MINE	6-73

6.35.1	Mine Location	6-73

6.35.2	Historical Information and Mine Description/Features	6-74

6.35.3	START-2 Mine Visit	6-74

6.36	JACKSON MINE	6-74

6.36.1	Mine Location	6-74

6.36.2	Historical Information and Mine Description/Features	6-74

6.36.3	ST ART -2 Mine Visit	6-75

6.37	FRISCO-STANDARD MINE	6-75

6.37.1	Mine Location	6-75

6.37.2	Historical Information 	6-75

6.37.3	Mine Description/Features	6-75

6.37.4	ST ART -2 Mine Visit	6-76

6.38	MYEERAH MINE 	6-76

6.38.1	Mine Location	6-76

6.38.2	Historical Information and Mine Description/Features	6-76

6.38.3	START-2 Mine Visit	6-77

6.39	UNITED TREASURE MINE	6-77

6.39.1	Mine Location	6-77

6.39.2	Historical Information 	6-77

6.39.3	Mine Description/Features	6-78

6.39.4	START-2 Mine Visit	6-78

7. EPA CLP ANALYTICAL RESULTS, SURFACE WATER

MIGRATION/EXPOSURE PATHWAYS, AND TARGETS	7-1

7.1	DAISY MINE 	7-1

7.1.1 Surface Water Pathway Description	7-1

7.2	L-BAR/NORTHWEST MAGNESITE 	7-2

7.2.1 Surface Water Pathway Description	7-2

7.3	NORTHWEST ALLOYS	7-3

7.3.1 Surface Water Pathway Description	7-3

7.4	NAPOLEON MINE/MILL 	7-4

7.4.1 Surface Water Pathway Description	7-4

7.5	VAN STONE MINE/MILL 	7-5

7.5.1 Surface Water Pathway Description	7-5

7.6	LEROI/NORTHPORT SMELTER 	7-8

7.6.1	Surface Water Pathway Description	7-8

7.6.2	Soil Exposure Pathway Description	7-9

7.7	BLACK ROCK MINE/MILL	7-9

7.7.1 Surface Water Pathway Description	7-9

7.8	GREAT WESTERN MINE 	7-10

7.8.1 Surface Water Pathway Description	7-10

7.9	LAST CHANCE MINE/MILL	7-10

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TABLE OF CONTENTS (CONTINUED)

Section	Page

7.9.1 Surface Water Pathway Description	7-10

7.10 DEEP CREEK MINE 	7-11

7.10.1	Surface Water Pathway Description	7-11

7.10.2	Soil Exposure Pathway Description	7-13

7	.11 COPPER KING MINE 	7-13

7.11.1 Surface Water Pathway Description	7-13

7.12	SIERRA ZINC MINE/MILL 	7-14

7.12.1 Surface Water Pathway Description	7-14

7.13	ELECTRIC POINT MINE/MILL 	7-16

7.13.1 Surface Water Pathway Description	7-16

7.14	GLADSTONE MINE/MILL 	7-17

7.14.1 Surface Water Pathway Description	7-17

7.15	RED TOP MINE	7-18

7.15.1 Surface Water Pathway Description	7-18

7.16	ANDERSON CALHOUN MINE/MILL 	7-18

7.16.1 Surface Water Pathway Description	7-18

7.17	IROQUOIS MINE	7-21

7.17.1 Surface Water Pathway Description	7-21

7.18	MELROSE MINE 	7-22

7.18.1 Surface Water Pathway Description	7-22

7.19	TRIBUTARIES	7-23

7.20	TARGETS	7-25

7.21	SAMPLE LOCATIONS	7-31

7.22	SAMPLE RESULTS 	7-32

8. SUMMARY AND CONCLUSIONS	8-1

8	.1 FINDINGS AND CONCLUSIONS	8-1

8.1.1	Daisy Mine 	8-1

8.1.2	L-Bar/Northwest Magnesite	8-2

8.1.3	Northwest Alloys 	8-3

8.1.4	Napoleon Mine/Mill 	8-3

8.1.5	Van Stone Mine/Mill	8-4

8.1.6	LeRoi/Northport Smelter 	8-4

8.1.7	Black Rock Mine/Mill	8-5

8.1.8	Great Western Mine 	8-5

8.1.9	Last Chance Mine/Mill 	8-6

8.1.10	Deep Creek Mine	8-6

8.1.11	Copper King Mine	8-6

8.1.12	Sierra Zinc Mine/Mill	8-7

8.1.13	Electric Point Mine/Mill	8-7

8.1.14	Gladstone Mine/Mill 	8-7

8.1.15	RedTopMine	8-8

8.1.16	Anderson Calhoun Mine/Mill	8-8

8.1.17	Iroquois Mine 	8-8

8.1.18	Melrose Mine 	8-9

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TABLE OF CONTENTS (CONTINUED)

Section	Page

9. REFERENCES	9-1

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LIST OF APPENDICES

A	PHOTOGRAPHIC DOCUMENTATION

B	START-2 AND EPA LOGBOOKS

C	GLOBAL POSITIONING SYSTEM COORDINATES

D	DATA QUALITY ASSURANCE REVIEW MEMORANDUMS AND ANALYTICAL DATA
FORMS

E	KETTLE RIVER

F	LEROI/NORTHPORT SMELTER HISTORICAL SITE MAPS

G	NORTHPORT CITY WELLS ANALYTICAL RESULTS

H	WESTON'S TRIP REPORT

I	CITY OF ADDY MUNICIPAL WATER SUPPLY WELLS ANALYTICAL RESULTS

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LIST OF TABLES

Table	Page

1-1	Mines and Mills	1-4

3-1	Sample Collection and Analytical Summary	3-5

5-1	Surface Soil Background Samples Analytical Results Summary	5-6

5-2	Sediment Background Samples Analytical Results Summary	5-9

5-3	WESTON's Surface Soil and Sediment Background Samples Analytical Results Summary 5-12

6-1	Daisy Mine Surface Soil Samples Analytical Results Summary 	6-79

6-2	Daisy Mine Sediment Samples Analytical Results Summary	6-80

6-3	L-Bar/Northwest Magnesite Sediment Samples Analytical Results Summary	6-81

6-4	Northwest Alloys Sediment Samples Analytical Results Summary 	6-82

6-5	Napoleon Mine/Mill Sediment Samples Analytical Results Summary 	6-83

6-6	Van Stone Mine/Mill Surface Soil Samples Analytical Results Summary	6-84

6-7	Van Stone Mine/Mill Sediment Samples Analytical Results Summary	6-93

6-8	LeRoi/Northport Smelter Surface Soil Samples Analytical Results Summary	6-95

6-9	LeRoi/Northport Smelter Sediment Samples Analytical Results Summary 	6-96

6-10	LeRoi/Northport Smelter Sediment Sample Analytical Results Summary	6-97

6-11	Black Rock Mine/Mill Surface Soil Samples Analytical Results Summary	6-98

6-12	Great Western Mine Surface Soil Samples Analytical Results Summary 	6-100

6-13	Last Chance Mine/Mill Surface Soil Samples Analytical Results Summary 	6-101

6-14	Last Chance Mine/Mill Sediment Samples Analytical Results Summary 	6-103

6-15	Deep Creek Mine Surface Soil Samples Analytical Results Summary	6-104

6-16	Copper King Mine Surface Soil Samples Analytical Results Summary	6-108

6-17	Copper King Mine Sediment Samples Analytical Results Summary	6-109

6-18	Sierra Zinc Mine/Mill Surface Soil Samples Analytical Results Summary	6-110

6-19	Electric Point Mine/Mill Surface Soil Samples Analytical Results Summary	6-115

6-20	Gladstone Mine/Mill Surface Soil Samples Analytical Results Summary 	6-118

6-21	Red Top Mine Surface Soil Samples Analytical Results Summary	6-120

6-22	Anderson Calhoun Mine/Mill Surface Soil Samples Analytical Results Summary	6-121

6-23	Anderson Calhoun Mine/Mill Sediment Samples Analytical Results Summary	6-123

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LISTOF TABLES (CONTINUED)

Table	Page

6-24 Iroquois Mine Surface Soil Samples Analytical Results Summary 	6-124

6-25	Melrose Mine Sediment Samples Analytical Results Summary 	6-125

7-1	Probable Point of Entry Locations 	7-33

7-2 L-Bar/Northwest Magnesite Ditch Sediment Samples Analytical Results Summary	7-34

7-3 L-Bar/Northwest Magnesite River Sediment Samples Analytical Results Summary	7-35

7-4 Northwest Alloys Creek Sediment Samples Analytical Results Summary 	7-36

7-5 Northwest Alloys River Sediment Samples Analytical Results Summary	7-37

7-6 Deep Creek Mine Sediment Samples Analytical Results Summary 	7-38

7-7	Anderson Calhoun Mine/Mill Sediment Samples Analytical Results Summary	7-39

8-1	CERCLA Recommendations 	8-10

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LIST OF FIGURES

Figure	Page

1-1	Upper Columbia River Project Area 	1-5

1-2	Lake Roosevelt Drainage Basin	1-6

1-3	Mines and Mills Locations Lower Project Area 	1-7

1-4	Mines and Mills Locations Upper Project Area	1-9

5-1	Surface Soil Background Sample Location Map 	5-13

6-1	Daisy Mine Site Map	6-126

6-2	Daisy Mine Sample Location Map	6-127

6-3	L-Bar/Northwest Magnesite Site Map 	6-129

6-4	L-Bar/Northwest Magnesite Sample Location Map 	6-131

6-5	Northwest Alloys Site Map 	6-133

6-6	Northwest Alloys Sample Location Map 	6-135

6-7	Napoleon Mine/Mill Site Map 	6-137

6-8	Napoleon Mine/Mill Sample Location Map	6-138

6-9	Van Stone Mine/Mill Site Map	6-139

6-10	Van Stone Mine/Mill Site Map	6-141

6-11	Van Stone Mine/Mill Site Map	6-143

6-12	Van Stone Mine/Mill Sample Location Map	6-145

6-13	Van Stone Mine/Mill Sample Location Map	6-147

6-14	Van Stone Mine/Mill Sample Location Map	6-149

6-15	Northport Smelter Site Map 	6-151

6-16	LeRoi/Northport Smelter Map 	6-153

6-17	LeRoi/Northport Smelter Sample Location Map 	6-155

6-18	Sampling Site Locations in Lake Roosevelt and the Upper Columbia River - May 2001 6-157

6-19	Black Rock Mine/Mill Site Map	6-158

6-20	Black Rock Mine/Mill Sample Location Map	6-159

6-21	Great Western Mine Site Map 	6-160

6-22	Great Western Mine Sample Location Map	6-161

6-23	Last Chance Mine/Mill Site Map 	6-162

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LIST OF FIGURES (CONTINUED)

Figure	Page

6-24 Last Chance Mine/Mill Sample Location Map	6-163

6-25 Deep Creek Mine Site Map 	6-164

6-26 Deep Creek Mine Sample Location Map 	6-165

6-27 Copper King Mine Site Map 	6-166

6-28 Copper King Mine Sample Location Map 	6-167

6-29 Sierra Zinc Mine/Mill Site Map 	6-168

6-30 Sierra Zinc Mine/Mill Sample Location Map 	6-169

6-31 Electric Point Mine/Mill Site Map	6-170

6-32 Electric Point Mine/Mill Sample Location Map	6-171

6-33 Gladstone Mine/Mill Site Map 	6-172

6-34 Gladstone Mine/Mill Sample Location Map	6-173

6-35 Red Top Mine Site Map	6-174

6-36 Red Top Mine Sample Location Map 	6-175

6-37 Anderson Calhoun Mine/Mill Site Map 	6-177

6-38 Anderson Calhoun Mine/Mill Sample Location Map 	6-179

6-39 Iroquois Mine Site Map 	6-181

6-40 Iroquois Mine Sample Location Map	6-182

6-41 Melrose Mine Site Map 	6-183

6-42	Melrose Mine Sample Location Map	6-184

7-1	Daisy Mine 15-Mile Map 	7-41

7-2 L-Bar/Northwest Magnesite 15-Mile Map 	7-43

7-3 Northwest Alloys 15-Mile Map	7-45

7-4 Napoleon Mine/Mill 15-Mile Map	7-47

7-5 Van Stone Mine/Mill 15-Mile Map 	7-49

7-6 LeRoi/Northport Smelter 15-Mile Map	7-51

7-7 Black Rock Mine/Mill 15-Mile Map 	7-53

7-8 Great Western Mine 15-Mile Map	7-55

7-9 Last Chance Mine/Mill 15-Mile Map	7-57

7-10 Deep Creek Mine 15-Mile Map	7-59

10:START-2\01020028\S759

XVI


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LIST OF FIGURES (CONTINUED)

Figure	Page

7-11	Copper King Mine 15-Mile Map 	7-61

7-12	Sierra Zinc Mine/Mill 15-Mile Map	7-63

7-13	Electric Point Mine/Mill 15-Mile Map 	7-65

7-14	Gladstone Mine/Mill 15-Mile Map	7-67

7-15	Red Top Mine 15-Mile Map 	7-69

7-16	Anderson Calhoun Mine/Mill 15-Mile Map 	7-71

7-17	Iroquois Mine 15-Mile Map	7-73

7-18	Melrose Mine 15-Mile Map	7-75

10:START-2\01020028\S759

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LIST OF ACRONYMS

Acronvm

Definition

AST

aboveground storage tank

bgs

below ground surface

CERCLA

Comprehensive Environmental Response, Compensation, and Liability Act

CES

Cascade Earth Sciences

CLP

Contract Laboratory Program

cfs

cubic feet per second

COCs

contaminants of concern

CRM

Casting Residue Mound

CRDL

Contract Required Detection Limit

CRQL

Contract Required Quantitation Limit

DNR

Washington State Department of Natural Resources

DQOs

data quality objectives

E&E

Ecology and Environment, Inc.

Ecology

Washington State Department of Ecology

EPA

United States Environmental Protection Agency

ESAT

Environmental Services Assistance Tearn

ESP

electrostatic precipitate

gpm

gallons per minute

GPS

global positioning system

HDPE

high-density polyethylene

HRS

Hazard Ranking System

IDW

investigation-derived waste

Lake RooseveltFranklin D. Roosevelt Lake

jjg/L	micrograms per liter

mg/kg	milligrams per kilogram

msl	mean sea level

MS/MSD matrix spike/matrix spike duplicate

NW	Northwest

PAs	preliminary assessments

pesticide/PCBs chlorinated pesticide/poly chlorinated biphenyls

10:START-2\01020028\S759

XIX


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Acronym

PPE

QA/QC

%R

RCRA

RI

RPD

Sis

SOW

SQAP

SQL

SVOCs

START

TAL

TDD

TDL

TM

TOC

WESTON
XRF

LIST OF ACRONYMS (CONTINUED)

Definition

probable point of entry
quality assurance/quality control
percent recovery

Resource Conservation and Recovery Act

remedial investigation

relative percent difference

site investigations

statement of work

sampling and quality assurance plan

sample quantitation limit

semivolatile organic compounds

Superfund Technical Assessment and Response Tearn

Target Analyte List

Technical Direction Document

target distance limit

Task Monitor

total organic carbon

Roy F. Weston, Inc.

X-ray fluorescence

10:START-2\01020028\S759

XX


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PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS REPORT
UPPER COLUMBIA RIVER MINES AND MILLS
STEVENS COUNTY, WASHINGTON

1. INTRODUCTION

The United States Environmental Protection Agency (EPA) has tasked Ecology and
Environment, Inc. (E & E) to provide technical support in investigating potential sources of
contamination to the upper Columbia River project area. The upper Columbia River project area is
defined for this investigation as the portion of the Columbia River beginning at approximately river mile
(RM) 675 near Inchelium, Washington, extending upstream to the U.S.-Canada border at approximately
RM 745 (Figure 1-1). The Columbia River is the principal inflowto Lake Roosevelt and contributes
about 90 percent of the flow from a large drainage area in Canada and the United States (Figure 1-2).

Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) activities
conducted for this project included preliminary assessments (PAs) and site investigations (Sis) for
39 mine and mill sites in Stevens County, Washington (Figures 1-3 and 1-4). The PAs and Sis were
conducted under the authority of CERCLA of 1980 as amended by the Superfund Amendments and
Reauthorization Act of 1986. A list of the 39 mine and mill sites visited in Stevens County are presented
in Table 1 -1. Table 1-1 identifies mine and mill sites which the Confederated T ribes of the Colville
Reservation petitioned the EPA for assessment under CERCLA (Cawston 1999; Passmore 2000). The
remaining mine and mill sites listed in T able 1-1 were identified by the EPA based on the location of the
mine and/or mill relative to tributaries that empty into the upper Columbia River (project area) and
available information regarding volume of ore produced.

A detailed discussion of related field activities conducted at 21 mine and mill sites visited in
Pend Oreille County can be found in the Lower Pend Oreille River Mines and Mills Preliminary
Assessments and Site Investigations Report prepared by E & E for EPA, dated April 2002.

The PAs and Sis are phases in the site assessment process for determining whether a site has
released, is releasing, or has the potential to release, hazardous substances, pollutants, or contaminants
into the environment and whether it requires further detailed investigation and/or response action that is
authorized by CERCLA. The assessment process does not include extensive or complete site
characterization, contaminant fate determination, or quantitative risk assessment.

10:START-2\01020028\S759

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The objectives of the PAs and Sis are to:

•	Identify potential sources of contamination to the upper Columbia River project area;

•	Determine whether the mines or mills are releasing, or have the potential to release
hazardous constituents into the environment;

•	Document the threat or potential threat to public health or the environment posed by the
mines or mills;

•	Assess the need for additional detailed investigation and/or response action at the mines
or mills; and

•	Determine the potential for placement of each mine or mill on the National Priorities
List.

Field activities were conducted through a combined effort involving Superfund Technical
Assessment and Response Tearn (START)-2 contractor firms, E & E and Roy F. Weston, Inc.
(WESTON). Sampling activities were conducted at 18 of the 39 mine and mill sites visited in Stevens
County. E & E conducted sampling at mines and mills where potential sources of contamination were
identified and possible impacts to receptors via the surface water migration pathway were observed. In
addition, the soil exposure pathway was evaluated for the Deep Creek Mine and the LeRoi/Northport
Smelter. E & E activities were conducted under START-2 Contract No. 68-S0-01-01 andTechnical
Direction Document (TDD) No. 01-02-0028. WESTON collected sediment samples in tributaries to the
upper Columbia River and mine and mill-specific background samples as determined necessary by the
EPA. WESTON activities were conducted under START-2 Contract No. 68-S0-01-02 andTDD
No. 01-02-001-A.

Activities conducted as part of this investigation include reviewing existing mine and
mill-specific information, regional characteristics, collecting receptor information within the mine or
mill's range of influence, conducting visits to the mine and mill sites, executing the sampling plan, and
producing this report.

In accordance with the sampling and quality assurance plan (SQAP), attempts were made to
conduct in-situ field screening of metals concentrations at potential contaminant sources using X-ray
fluorescence (XRF) equipment. Due to field conditions, the instruments exceeded operating
temperatures on several occasions. It was determined that the equipment was not able to function
properly in a high temperature environment and its use was discontinued. A memo presenting the results
of the limited XRF screening conducted is included in Appendix D.

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Section 2 of this document includes a discussion of the regional operations and waste
characteristics. Section 3 provides a description of the field activities conducted by E & E and
WESTON. Quality assurance/quality control (QA/QC) criteria are included in Section 4. Reporting
criteria, reporting methods, and background sample analytical results are discussed in Section 5. Mine
and mill locations, descriptions, and START-2 site visits are discussed in Section 6. Section 7 provides a
discussion of contaminant sources, potential targets/receptors and sampling results associated with each
mine and mill site sampled. Mine/mill-specific findings and recommendations are summarized in
Section 8. References are provided in Section 9. Photographic documentation is provided in Appendix
A. Copies of START-2 and EPA logbooks are provided in Appendix B. Global positioning system
(GPS) coordinates are provided in Appendix C. Data quality assurance review memorandums and
analytical data forms are provided in Appendix D. The data for the samples collected in the Kettle River
are provided in Appendix E. Historical site maps of LeRoi/Northport Smelter are provided in
Appendix F. The Northport city wells analytical data are provided in Appendix G. The trip report
prepared by WESTON is provided in Appendix H. The analytical results of routine monitoring at the
City of Addy municipal water supply wells is provided in Appendix I.

10:START-2\01020028\S759

1-3


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Table 1-1











MINES AND MILLS VISITED







UPPER COLUMBIA RIVER MINES AND MILLS





PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS



STEVENS COUNTY,

WASHINGTON







Mine/Mill Name

Latitude

Longitude

S

T

R

Daisy Mine

48

22

45.80

118

4

42.60

7

33N

38E

L-Bar/Northwest Magnesite*

48

15

21.94

117

43

6.25

23

32N

40E

Northwest Alloys*

48

21

26.00

117

50

54.00

14

33N

39E

Napoleon Mine/Mill*

48

44

12.10

118

06

4.32

3

37N

37E

First Thought Mine*

48

53

2.04

118

09

32

18

39N

37E

Lottie Mine

48

51

53.28

118

01

15.24

19

39N

38E

HomestakeNo. 1 Mine

48

52

06.96

118

01

18.84

19

39N

38E

Antelope Mine

48

52

04.80

118

01

05.88

19-20

39N

38E

Hubbard Mine

48

55

15.96

117

52

03.72

32

40N

39E

New Leadville Mine

48

44

08.52

117

52

33.60

3

37N

39E

R.J. Mine

48

43

54.84

117

52

31.80

3

37N

39E

Van Stone Mine/Mill*

48

45

38.16

117

45

23.76

33

38N

40E

Hope and Twin Cabins Mine

48

53

09.96

118

01

37.92

7 and 18

39N

38E

St. Crispin Mine*

48

56

30.99

117

47

7.47

25

40 N

39E

Northport Mill*

48

56

31.08

117

45

15.66

29

40 N

40E

LeRoi/Northport Smelter*

48

55

23.16

117

46

02.28

33

40N

40E

Black Rock Mine/Mill

48

52

13.45

117

42

22.12

24

39N

40E

Great Western Mine

48

52

06.24

117

41

48.48

24

39N

40E

Last Chance Mine/Mill*

48

51

59.40

117

41

56.40

24

39N

40E

Deep Creek Mine*

48

51

48.96

117

42

54.36

26

39N

40E

Copper King Mine

48

46

51.60

117

39

12.24

20

38N

41E

Sierra Zinc Mine/Mill*

48

46

28.20

117

40

06.24

20

38N

41E

Magma Mine

48

46

00.48

117

38

25.08

28

38N

41E

Farmer Mine

48

50

59.28

117

37

17.40

34

39N

41E

Maki Mine

48

50

45.60

117

36

00.00

35

39N

41E

Electric Point Mine/Mill*

48

52

56.28

117

32

29.04

17-18

39N

42E

Gladstone Mine/Mill*

48

53

12.48

117

32

35.16

18

39N

42E

Lucky Four Mine

48

52

51.60

117

32

33.00

18

39N

42E

Red Top Mine

48

56

35.88

117

33

52.20

25

40N

41E

Anderson Calhoun Mine/Mill*

48

55

09.84

117

35

28.68

2

39N

41E

Lucile Mine

48

57

01.08

117

33

12.24

30

40N

42E

Iroquois Mine

48

57

06.12

117

32

22.92

30

40N

42E

Silver Queen Mine

48

32

56.90

118

06

57.60

11

35N

37E

Melrose Mine

48

56

44.52

117

38

45.96

28

40N

41E

Lakeview Mine

48

57

51.84

117

32

57.12

19

40N

42E

Jackson Mine

48

57

35.64

117

34

08.04

24

40N

41E

Frisco-Standard Mine

48

59

34.80

117

26

39.48

12

40N

42E

Myeerah Mine

48

59

26.16

117

27

14.76

11

40N

42E

United Treasure Mine

48

59

21.48

117

27

51.12

11

40N

42E

Source: Maptech, 2001, Andover, Massachusetts.

* Mine/mill sites petitioned by The Colville Confederated Tribes to the EPA for assessment under CERCLA.

Key:



CERCLA

= Comprehensive Environmental Response, Compensation, and Liability Act of 1980

EPA

= United States Environmental Protection Agency.

S

= Section.

T

= Township.

R

= Range.

E

= East.

N

= North.

RM

= River mile.

TDL

= Target Distance Limit.

1-4

Page 1 of 1


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2. BACKGROUND

2.1	MINE/MILL OWNERSHIP

Property owners and/or representatives for the mines/mills visited are identified in Section 6.
Consent for access to each mine and mill sites visited was obtained prior to conducting the visits.

2.2	REGIONAL OPERATIONS AND WASTE CHARACTERISTICS
2.2.1 Historic Mining

The mining district surrounding the towns of Colville, Chewelah, Addy, and Northport in
Stevens County, Washington dates back to the 1880s (Battien 1998). Stevens County's Embry Camp is
the oldest mining district in the state. The Chewelah mining district was one of the earliest to be
discovered and put into production. Stevens County produced the most gold in the state of Washington
from 1905 to 1908 and again in 1922. The county led the state in the number of producing mines in
1928. By 1962, a geological survey stated that Stevens County produced half of the minerals of the state
of Washington. (Battien 1998)

2-1


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3. Mi l l) ACTIVITIES AND ANALYTICAL PROTOCOL

A SQAP for the upper Columbia River PAs and Sis was developed by the START-2 prior to
performing the field sampling (E & E 2001). The SQAP describes the sampling strategy, sampling
methodology, and analytical program used to identify potential hazardous substance source areas and
impacts to potential targets. With few exceptions, field activities were conducted in accordance with the
approved SQAP. Deviations from the SQAP are described when applicable. Field activities were
conducted in coordination with United States Department of the Interior Bureau of Land Management,
United States Department of Agriculture Forest Service, and Washington State Department of Ecology
(Ecology) staff.

The field event was conducted from June 17 to 30 and September 9 to 15, 2001. Sampling was
conducted at 18 of the 39 mines and mills visited. Sampling was conducted at those mines and mills
where potential sources of contamination were identified and where possible impacts to receptors via the
surface water migration pathway were observed. In addition, the soil exposure pathway was evaluated
for the Deep Creek Mine and the LeRoi/Northport Smelter. Possible receptors of contamination that
were identified were also sampled.

As described in the SQAP, potential contaminant sources may include tailings piles/ponds, waste
rock piles, adits, and stained soil areas surrounding improperly stored or disposed drums and containers.
Potential receptors/targets may include wetland areas, fisheries, surface water intakes, sensitive
environments, etc. as defined in the EPA Hazard Ranking System (HRS); Final Rule. The contaminants
of concern (COCs) include T arget Analyte List (T AL) metals, chlorinated pesticide/poly chlorinated
biphenyls (pesticide/PCBs), and semivolatile organic compounds (SVOCs). Total organic carbon (TOC)
data was also collected for sediment samples.

A total of 203 soil/sediment samples and 13 surface water samples were collected by E & E and
analyzed under the EPA Contract Laboratory Program (CLP) for TAL metals. Sixty-eight soil/sediment
and two surface water samples were also analyzed under the EPA CLP for pesticide/PCBs. Thirty-
four soil/sediment and two surface water samples, were analyzed for SVOCs. A total of 20 sediment
samples were submitted to a commercial laboratory for TOC analysis. WESTON collected a total of

10:START-2\01020028\S759

3-1


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120 sediment samples and 5 surface water samples. Table 3-1 provides a summary of sample collection
information.

Sample types and the methods of collection are described below. A discussion of sample results
is contained in Sections 6 and 7. Photographic documentation of the PAs and Sis field activities are
contained in Appendix A.

Information pertinent to WESTON's related sampling activities involving the collection of mine
and mill-specific background samples is included in Appendix H.

3.1 SAMPLING MEfflO DO LOGY

Sampling for surface soil, surface water, and sediment followed the standard operating
procedures contained in Appendix A of the SQAP (E & E 2001). Grass, leaves and other vegetative
material, rocks and other debris unsuitable for analysis were removed from soil samples before being
placed into the sampling containers. Surface soil and sediment samples were homogenized in dedicated
plastic bowls (except for pesticide/PCBs analysis) prior to placement in sample jars. Dedicated plastic
spoons and scoops were used to extract, homogenize, and place sample material into sample containers
(except for pesticide/PCBs analysis). Dedicated steel bowls and steel spoons were used for the collection
and homogenization of pesticide/PCBs samples.

Water samples were collected by hand dipping a 1-liter polyethylene bottle sample container into
the water at well-mixed locations within the stream, or by using an unused sample container as a scoop to
obtain water samples in areas of low flow. An aliquot of each sample was tested in the field for
temperature and pH. After preservation, pH was checked again to ensure that the appropriate pH level
had been achieved.

All samples were stored on ice in coolers continuously maintained under chain-of-custody.
Vehicles were locked if the sampling team had to walk out of visual range. Sample coolers from all
teams were moved into a single occupied location (motel room) each evening to ensure custody control
and to re-ice as needed.

3.1.1 EPA CLP Surface Soil Samples

A total of 159 surface soil samples, including 9 background samples, were collected. Soil
samples were discrete grab samples collected from potential source and background areas. Surface soil
samples were collected from 0 to 6 inches below ground surface (bgs). Samples were analyzed for T AL

10:START-2\01020028\S759

3-2


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metals. A portion of samples also were analyzed for pesticide/PCBs (42 samples) and SVOCs
(12 samples).

3.1.2	EPA CLP Sediment Samples

A total of 44 sediment samples, including 9 background samples, were collected as outlined in
the text of the SQAP (E & E 2001). Sediment samples were collected from below the apparent water line
from 0 to 8 inches below the sediment surface in order from most downstream locations to most upstream
locations. Samples were analyzed for T AL metals. Twenty-six samples also were analyzed for
pesticide/PCBs, SVOCs (22 samples), andTOC (20 samples).

3.1.3	EPA CLP Surface Water Samples

A total of 13 surface water samples were collected prior to collecting co-located sediment
samples and from the most downstream locations to the most upstream locations. Water samples were
analyzed for TAL metals. A portion of samples also were analyzed for pesticide/PCBs (two samples)
and SVOCs (two samples).

3.2	ANALYTICAL PRO TO COLS

All samples collected were shipped off-site for chemical analysis, with the exception of field
measurement for pH. Analytical methods applied to E & E samples consisted of: EPA CLP TAL metals,
EPA CLP pesticide/PCBs, EPA CLP SVOCs, and EPA SW-846 TOC. These analyses were applied to
samples collected from suspected sources or targets in varying combinations based on the SQAP.
Laboratories performing the analyses are noted in Section 4. Analysis applied to mine and mill-specific
background samples collected by WEST ON were based on the approved SQAP; Upper Columbia
River/Lake Roosevelt Expanded Site Inspection Sampling and Quality Assurance Plan, TDD
No. 01-02-0001-A, EPA Contract: 68-S0-01-02, prepared for the EPA Region 10 by WESTON,
May 2001.

3.3	GLOBAL POSITIONING SYSTEM

Trimble™ Pathfinder Professional XL GPS survey units and data loggers were used by the
START-2 to approximate the horizontal location coordinates of sample points. Except as noted for
specific sample locations, the units provided three-dimensional differentially-corrected sample
coordinates with ± 1 meter accuracy. Due to the combination of the mountainous terrain and limited

10:START-2\01020028\S759

3-3


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satellite coverage over this area, the GPS units were often operating in no more than two-dimensional
mode.

Sample coordinates were plotted onto a digitized map and then incorporated into geographic
information system databases to develop a station/sample location map. The ST ART-2 was not able to
obtain accurate GPS coordinates at some locations due to mountainous terrain. These station locations
were estimated on the sample location map based on field observations. GPS coordinates by sample
point are provided in Appendix C. WEST ON GPS coordinates are found in Appendix H.

3.4 INVESTIGATION-DERIVED WASTE

Investigation-derived waste (IDW) generated during the sampling effort consisted of used
personal protective clothing and disposable sampling equipment. IDW was disposed of as non-hazardous
solid waste at a municipal landfill. No IDW generated by the ST ART-2 remains in the project area.

10:START-2\01020028\S759

3-4


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Table 3-1

SAMPLE COLLECTION AND ANALYTICAL SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON

EPA
Sample ID

E & E
Sample
ID

Station
Location ID

CLP
Organic
No.

CLP
Inorganic
No.

Matrix

Depth

Sampler

Date

Time

TAL
Metals
Pesticide/
PCBs

roc

VOCs

SVOCs

Description

Daisy Mine





























01374161

01090426

DTPP01SD

J0KH0

MJ0KH0

SD

0-6

HZ

09/10/01

15:55

X

X

X





Sand 50%, silt 40%, gravel 10%. All subangular, light
gray to brown, trace organics.

01374162

NU

DTAD01SW

NU

MJ0KH1

sw

-

HZ

09/10/01

16:30

X









-

01374164

NU

DTTP01SS

NU

MJ0KH3

ss

0-6

HZ

09/10/01

17:10

X









Silty soil, 5 inch gravel - subangular, light brown.

01374165

NU

DTTP02SS

NU

MJ0KH4

ss

0-6

HZ

09/10/01

17:25

X









Silt 60%. Sand 15% very fine to medium grained gravel.
25% subangular - angular, light gray to brown.

01374166

NU

DTTP03SS

NU

MJ0KH5

ss

0-6

HZ

09/10/01

18:25

X







X

70% sand, very fine to medium grained. 15% silt. 15%
gravel, angular to subangular, light gray, brown, trace
organics.

L-Bar/Northwest Magnesite

01374101

01090401

LBDT01SD

J0KC1

MJ0KC1

SD

0-8

RL

09/10/01

14:30

X

X

X



X

Dark brown to black. Lots of organic material - silty clay,
roots, plant debris.

01374102

01090402

LBDT02SD

J0KC2

MJ0KC2

SD

0-8

RL

09/10/01

15:00

X

X

X



X

Organic rich, wet, hydrogen sulfide odor, dark
brown/black.

01374103

01090403

LBDT03SD

J0KC3

MJ0KC3

SD

0-8

RL

09/10/01

15:30

X

X

X



X

Dark brown to black. Lots of organic matter.

01374110

01090410

LBPP01SD

J0KD1

MJ0KD1

SD

0-8

RL

09/11/01

9:10

X

X

X



X

Silty sand, brown, chunks of clay material.

Northwest Alloys

01374105

01090405

NAPP01SD

J0KC5

MJ0KC5

SD

0-8

RL

09/10/01

17:15

X

X

X



X

Fine sand with little gravel.

01374106

01090406

NACK01SD

J0KC6

MJ0KC6

SD

0-8

RL

09/10/01

17:45

X

X

X



X

Gravelly sand and poorly sorted.

01374107

01090407

NADT01SD

J0KC7

MJ0KC7

SD

0-8

RL

09/10/01

18:15

X

X

X



X

Silt, very fine sand.

Napoleon Mine/Mill

01374112

NU

NPAD01SW

NU

MJ0KD3

SW

-

JS

09/12/01

9:45

X









Clear, no odor.

01374113

01090412

NPPP01SD

J0KD3

MJ0KD4

SD

0-8

JS

09/11/01

10:05

X

X

X



X

Silty loam, light brown, subangular to angular, trace
organics.

3-5

Page 1 of 18


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Table 3-1















SAMPLE COLLECTION AND ANALYTICAL SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON

EPA
Sample ID

E & E
Sample
ID

Station
Location ID

CLP
Organic
No.

CLP
Inorganic
No.

Matrix

Depth

Sampler

Date

Time

TAL
Metals

Pesticide/
PCBs

roc

VOCs

SVOCs

Description

Van Stone \

[ine/Mill



























01254312

NU

VSTP21SS

NU

MJ0EW6

TL

0-6

AJ

06/22/01

12:20

X









Gray, fine and sandy.

01254313

NU

VSPP01SD

NU

MJ0EW7

SD

6-8

AJ

06/22/01

12:50

X









Dark gray, fine, moist sandy.

01254314

NU

VSPP02SD

NU

MJ0EW8

SD

6-8

AJ

06/22/01

13:25

X









Dark gray, fine, moist sandy.

01254315

NU

VSTP01SS

NU

MJ0EW9

ss

0-6

AJ

06/22/01

14:40

X









Gray sand and soil, fine, dry.

01254316

NU

VSTP02SS

NU

MJ0EX0

ss

0-6

AJ

06/22/01

15:15

X









Dark gray/brown, dry, fine soil.

01254317

NU

VSTP03SS

NU

MJ0EX1

ss

0-6

AJ

06/22/01

15:30

X









Dark gray, dry, fine soil.

01254318

NU

VSTP04SS

NU

MJ0EX8

ss

0-6

AJ

06/22/01

15:45

X









Fine, dry, gray, sandy.

01254319

NU

VSTP05SS

NU

MJ0EX3

ss

0-4

AJ

06/22/01

15:50

X









Brown, fine, dry soil.

01254320

NU

VSTP06SS

NU

MJ0EX4

ss

0-6

AJ

06/22/01

16:00

X









Brown, fine, dry soil.

01254321

NU

VSTP07SS

NU

MJ0EX5

ss

0-6

AJ

06/22/01

16:10

X









Brown, fine, dry soil and tailings.

01254322

NU

VSTP08SS

NU

MJ0EX6

ss

0-6

AJ

06/22/01

16:15

X









Very fine, brown, dry soil.

01254323

NU

VSTP09SS

NU

MJ0EX7

ss

0-6

AJ

06/22/01

16:20

X









Dark brown, fine, dry soil.

01254324

NU

VSSS01SS

NU

MJ0F12

ss

0-6

AJ

06/23/01

9:15

X

X





X

Moist, brown, fine soil.

01254325

NU

VSSS02SS

NU

MJ0EX9

ss

0-6

AJ

06/23/01

9:40

X

X





X

Moist, brown, fine soil with small pebbles.

01254326

NU

VSSS03SS

NU

MJ0EY0

ss

0-6

AJ

06/23/01

10:10

X

X





X

Dark brown, moist, coarse sand.

01254327

NU

VSSS04SS

NU

MJ0EY1

ss

0-6

AJ

06/23/01

10:45

X

X







Dark green, very fine, dry.

01254328

NU

VSSS05SS

NU

MJ0EY2

ss

0-6

MW

06/23/01

10:47

X

X







Brown, dry, fine to coarse soil.

01254329

NU

VSSS06SS

NU

MJ0EY3

ss

0-6

AJ

06/23/01

11:30

X

X





X

Brown, dry, fine to coarse soil.

01254330

NU

VSSS07SS

NU

MJ0EY4

ss

0-6

AJ

06/23/01

11:35

X

X





X

Moist brown with some coarse soil.

01254331

NU

VSTP10SS

NU

MJ0EY5

ss

0-6

AJ

06/23/01

13:35

X









Moist brown soil and small rocks.

01254332

NU

VSTP11SS

NU

MJ0EY6

ss

0-6

AJ

06/23/01

13:45

X









Fine, brown, dry, soil.

01254333

NU

VSTP12SS

NU

MJ0EY7

ss

0-6

AJ

06/23/01

13:50

X









Fine, brown, dry, soil.

01254334

NU

VSTP13SS

NU

MJ0EY8

ss

0-6

AJ

06/23/01

14:20

X









Fine gray/brown, dry soil.

01254335

NU

VSTP14SS

NU

MJ0EY9

ss

0-6

AJ

06/23/01

14:25

X









Fine gray/brown, dry soil.

01254336

NU

VSTP15SS

NU

MJ0EZ0

ss

0-6

AJ

06/23/01

14:00

X









Fine, slightly moist, brown soil.

01254337

NU

VSTP16SS

NU

MJ0EZ1

ss

0-6

AJ

06/23/01

14:40

X









Fine, gray, dry soil.

01254338

NU

VSTP17SS

NU

MJ0EZ2

ss

0-6

AJ

06/23/01

14:45

X









Fine, brown, dry soil with small pebbles.

01254339

NU

VSTP18SS

NU

MJ0EZ3

ss

0-6

AJ

06/23/01

14:05

X









Fine, brown, dry soil with small pebbles.

01254340

NU

VSTP19SS

J0EZ4

NU

ss

0-6

AJ

06/23/01

15:45



X







Dark gray, fine, moist sandy.

01254341

NU

VSTP20SS

J0EZ5

NU

ss

0-6

MW

06/23/01

15:45



X







Dark gray, fine, moist sandy.

01254196

NU

VSWP01SS

NU

MJ0GJ5

ss

0-6

NA

06/23/01

10:40

X









Coarse sand with gravel, tan. Dry no odor.

01254197

NU

VSWP02SS

NU

MJ0GJ6

ss

0-6

NA

06/23/01

11:05

X









Tan/gray fine sand and gravel. Dry no odor.

01254198

NU

VSWP03SS

NU

MJ0GJ7

ss

0-6

NA

06/23/01

11:50

X









Tan/gray sandy gravel. Dry no odor.

01254199

NU

VSWP04SS

NU

MJ0GJ8

ss

0-6

NA

06/23/01

12:15

X









Tan sandy gravel. Dry no odor.

3-6

Page 2 of 18


-------














Table 3-1

















SAMPLE COLLECTION AND ANALYTICAL SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON

EPA
Sample ID

E & E
Sample
ID

Station
Location ID

CLP
Organic
No.

CLP
Inorganic
No.

Matrix

Depth

Sampler

Date

Time

TAL
Metals

Pesticide/
PCBs

roc

VOCs

SVOCs

Description

Van Stone IV

ine/Mill (c<

jntinued)

























01254200

NU

VSWP05SS

NU

MJ0GJ9

SS

0-6

NA

06/23/01

12:40

X









Gray fine sand with gravel and rocks. Dry no odor.

01254201

NU

VSWP06SS

NU

MJ0GK0

ss

0-6

NA

06/23/01

13:35

X









Gray fine sandy silt. Dry no odor.

01254202

NU

VSWP07SS

NU

MJ0GK1

SS

0-6

NA

06/23/01

13:55

X









Gray fine sand with gravel. Dry no odor.

01254203

NU

VSWP08SS

NU

MJ0GK2

ss

0-6

NA

06/23/01

14:15

X









Light tan fine sand/silt with gravel. Dry no odor.

01254204

NU

VSWP09SS

NU

MJ0GK3

ss

0-6

NA

06/23/01

14:40

X









Light tan fine sand/silt with gravel. Dry no odor.

01254205

NU

VSWP10SS

NU

MJ0GK4

ss

0-6

NA

06/23/01

15:15

X









Tan fine sand with gravel. Dry no odor.

01254206

NU

VSWP11SS

NU

MJ0GK5

ss

0-6

NA

06/23/01

15:35

X









Tan/gray very fine sand/silt and trace gravel.

01254207

NU

VSWP12SS

NU

MJ0GK6

ss

0-6

NA

06/23/01

15:55

X









Coarse gray sand with gravel. Dry no odor.

01254360

NU

VSSP01SW

NU

MJ0FJ9

sw

-

RN

06/23/01

10:50

X









No odor, moss particles, murky color.

01254361

NU

VSPP03SD

J0FK0

MJ0FK0

SD

6-8

RN

06/23/01

11:20

X

X







Gray sand/gravel.

01254362

NU

VSMW01SW

NU

MJ0FK1

sw

-

RN

06/23/01

11:40

X









Clear.

01254363

NU

VSMW01SD

J0FJ1

MJ0FK2

SD

6-8

RN

06/23/01

11:45

X

X







Silty sand to fine gravel, gray to light brown, slight odor.

01254364

NU

VSPP04SD

J0FJ2

MJ0FK3

SD

6-8

RN

06/23/01

13:50

X

X







Dark brown, medium to course sand with some silt.

LeRoi/Northport Smelter

01264431

NU

NSSL01SD

NU

MJ0GP0

SD

0-6

CG

06/28/01

13:15

X









Dark brown to black medium sand.

01264432

NU

NSSL02SD

NU

MJ0GP1

SD

0-6

CG

06/28/01

13:50

X









Dark brown to black medium sand.

01264433

NU

NSSL03SD

NU

MJ0GP2

SD

0-6

CG

06/28/01

14:10

X









Mixed brown and black sand medium to fine.

01264434

NU

NSSL04SD

NU

MJ0GP3

SD

0-6

CG

06/28/01

14:20

X









Mixed brown and black sand medium to fine.

01264435

NU

NSSL05SD

NU

MJ0GP4

SD

0-6

CG

06/28/01

14:30

X









Black medium to fine sand well sorted.

01264436

NU

NSSL06SD

NU

MJ0GP5

SD

0-6

CG

06/28/01

15:15

X









Brown fine sand and silt with brick fragments.

01264437

NU

NSSL07SD

NU

MJ0GP6

SD

0-6

CG

06/28/01

15:30

X









Brown fine to very fine sand.

01264438

NU

NSSL08SD

NU

MJ0GP7

SD

0-6

CG

06/28/01

15:45

X









Brown fine to very fine sand.

01264439

NU

NSSL09SD

NU

MJ0GP8

SD

0-6

CG

06/28/01

16:25

X









Brown fine to very fine sand.

01374182

NU

NSSL01SS

NU

MJ0KK0

SS

0-6

HZ

09/13/01

9:25

X









No odor, silty loam, very rocky, dry, light brown.

01374183

NU

NSSL02SS

NU

MJ0KK1

ss

0-6

HZ

09/13/01

10:45

X









85% sand, very fine to medium grained. 15% silt,
medium brown subangular. Sandy reddish slag pieces and
yellowish stain.

01374184

NU

NSSL03SS

NU

MJ0KK2

ss

0-6

HZ

09/13/01

11:00

X









85% sand, very fine to medium grained. 15% silt,
medium brown subangular. Sandy reddish with yellowish
stain.

01374185

01090430

NSDT01SD

J0KJ1

MJ0KK3

SD

0-8

JS

09/13/01

12:05

X

X

X



X

Light brown, subangular sand very fine to medium very
coarse grained

01374186

01090431

NSPP01SD

J0KJ2

MJ0KK4

SD

0-8

JS

09/13/01

12:30

X

X

X



X

Silty, saturated, light brown

3-7

Page 3 of 18


-------














Table 3-1













SAMPLE COLLECTION AND ANALYTICAL SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON

EPA
Sample ID

E & E
Sample
ID

Station
Location ID

CLP
Organic
No.

CLP
Inorganic
No.

Matrix

Depth

Sampler

Date

Time

TAL
Metals

Pesticide/
PCBs

roc

VOCs

SVOCs

Description

Black Rock

Vline/Mill



























01254160

NU

BRWP01SS

NU

MJ0GE9

SS

0-6

NA

06/19/01

17:25

X









Light brown medium sand with gravel.

01254161

NU

BRWP02SS

NU

MJ0GF0

ss

0-6

NA

06/19/01

17:30

X









Light brown/gray medium sand/gravel.

01254162

NU

BRWP03SS

NU

MJ0GF1

SS

0-6

NA

06/19/01

17:40

X









Light brown sand/gravel.

01254163

NU

BRMS01SS

NU

MJ0GF2

ss

0-6

NA

06/19/01

18:00

X









Light brown loamy sand

01254164

NU

BRMS02SS

NU

MJ0GF3

ss

0-6

NA

06/19/01

18:05

X









Light brown loamy sand

Great Weste

i n Mine





























01254177

NU

GWWP01SS

NU

MJ0GG6

ss

0-6

NA

06/21/01

11:20

X









Brown course sand/gravel. Dry no odor.

01254178

NU

GWWP02SS

NU

MJ0GG7

ss

0-6

NA

06/21/01

11:30

X









Brown/orange coarse sand gravel. Dry no odor.

Last Chance

Mine/Mill





























01254165

NU

LCMS01SS

NU

MJ0GF4

ss

0-6

NA

06/20/01

10:10

X









Medium brown fine loamy sand with trace gravel.

01254166

NU

LCMS02SS

NU

MJ0GF5

ss

0-6

NA

06/20/01

10:25

X









Medium brown fine sandy with gravel.

01254167

NU

LCMS03SS

NU

MJ0GF6

ss

0-6

NA

06/20/01

10:35

X









Medium brown/orange fine sand

01254168

NU

LCPP01SD

NU

MJ0GF7

SD

0-8

NA

06/20/01

10:45

X









Gray/brown/black medium sand with gravel, wet organic
odor.

01254169

NU

LCTP01SS

NU

MJ0GF8

ss

0-6

NA

06/20/01

11:30

X









Fine sand/silt medium brown, dry, no odor

01254170

NU

LCTP02SS

NU

MJ0GF9

ss

0-6

NA

06/20/01

11:40

X









Fine sand/silt medium brown slightly orange

01254171

NU

LCTP03SS

NU

MJ0GG0

ss

0-6

NA

06/20/01

11:45

X









Loose sand with gravels medium brown

01254172

NU

LCAD01SW

NU

MJ0GG1

sw

-

DW

06/20/01

13:15

X









Clear water no odor.

01254173

NU

LCPP02SD

NU

MJ0GG2

SD

0-8

DW

06/20/01

13:25

X









Brown black medium sand/silt. Wet no odor.

01254174

NU

LCWP01SS

NU

MJ0GG3

ss

0-6

NA

06/20/01

13:55

X









Brown fine sand/silt. Dry no odor.

01254175

NU

LCWP02SS

NU

MJ0GG4

ss

0-6

NA

06/20/01

14:10

X









Brown fine sand/silt. Dry no odor.

01254176

NU

LCWP03SS

NU

MJ0GG5

ss

0-6

NA

06/20/01

14:20

X









Brown fine sand/silt. Dry no odor.

Deep Creek Mine

01254251

NU

DCWP01SS

NU

MJ0EN5

ss

0-6

CG

06/20/01

10:00

X









White, quartz like, rocky.

01254252

NU

DCWP02SS

J0EN6

MJ0EN6

ss

0-6

CG

06/20/01

10:14

X

X







White quartz like.

01254253

NU

DCWP03SS

J0EN7

MJ0EN7

ss

0-6

CG

06/20/01

10:20

X

X







White quartz like.

01254254

NU

DCWP04SS

J0EN8

MJ0EN8

ss

0-6

CG

06/20/01

10:28

X

X







White quartz like.

01254255

NU

DCTP01SS

J0EN9

MJ0EN9

ss

0-6

CG

06/20/01

10:38

X

X







Fine, light brown, dry soil.

01254256

NU

DCTP02SS

J0EP0

MJ0EP0

ss

0-6

CG

06/20/01

10:44

X

X







Fine, light brown, dry soil.

01254257

NU

DCTP03SS

J0EP1

MJ0EP1

ss

0-6

CG

06/20/01

10:50

X

X







Fine, light brown, dry soil.

01254258

NU

DCTP04SS

J0EP2

MJ0EP2

ss

0-6

CG

06/20/01

14:13

X

X







Fine, light brown, dry soil.

01254259

NU

DCTP05SS

J0EP3

MJ0EP3

ss

0-6

CG

06/20/01

14:15

X

X







Fine, light brown, dry soil.

01254260

NU

DCTP06SS

J0EP4

MJ0EP4

ss

0-6

CG

06/20/01

14:18

X

X







Fine, light brown, dry soil.

01254261

NU

DCTP07SS

J0EP5

MJ0EP5

ss

0-6

CG

06/20/01

11:25

X

X







Fine, light brown, dry soil, with white quartz like rocks.

01254262

NU

DCTP08SS

J0EP6

MJ0EP6

ss

0-6

CG

06/20/01

11:35

X

X







Fine, light brown, dry soil, with white quartz like rocks.

01254263

NU

DCTP09SS

J0EP7

MJ0EP7

ss

0-6

CG

06/20/01

11:45

X

X







Fine, light brown, dry soil, with white quartz like rocks.

3-8

Page 4 of 18


-------














Table 3-1













SAMPLE COLLECTION AND ANALYTICAL SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON

EPA
Sample ID

E & E
Sample
ID

Station
Location ID

CLP
Organic
No.

CLP
Inorganic
No.

Matrix

Depth

Sampler

Date

Time

TAL
Metals

Pesticide/
PCBs

roc

VOCs

SVOCs

Description

Deep Creek

Mine (conti

nued)

























01254264

NU

DCTP10SS

J0EP8

MJ0EP8

SS

0-6

CG

06/20/01

12:03

X

X







Fine, dry.

01254265

NU

DCTP11SS

J0EP9

MJ0EP9

ss

0-6

CG

06/20/01

12:07

X

X







Fine, dry.

01254266

NU

DCTP12SS

J0EQ0

MJ0EQ0

SS

0-6

CG

06/20/01

12:07

X

X







Fine, dry.

01254267

NU

DCWP05SS

NU

MJ0EQ1

ss

0-6

CG

06/20/01

12:43

X









White, quartz like.

01254268

NU

DCTP13SS

J0EQ2

MJ0EQ2

ss

0-6

CG

06/20/01

13:26

X

X







Light brown, fine dry soil with some white quartz like
rocks.

01254269

NU

DCTP14SS

J0EQ3

MJ0EQ3

ss

0-6

CG

06/20/01

13:39

X

X







Light brown, fine dry soil with some white quartz like
rocks.

01254270

NU

DCTP15SS

J0EQ4

MJ0EQ4

ss

0-6

CG

06/20/01

13:31

X

X







Light brown, fine dry soil with some white quartz like
rocks.

01254271

NU

DCAD01SW

NU

MJ0EQ5

sw

-

MW

06/20/01

13:45

X









No odor, clear.

01254272

NU

DCTP16SS

J0EQ6

MJ0EQ6

ss

0-6

CG

06/20/01

13:49

X

X







Fine slightly moist, brown soil.

01254273

NU

DCTP17SS

J0EQ7

MJ0EQ7

ss

0-6

CG

06/20/01

13:50

X

X







Fine, slightly moist, brown soil.

01254274

NU

DCTP18SS

J0EQ8

MJ0EQ8

ss

0-6

CG

06/20/01

13:53

X

X







Fine, slightly moist, brown soil.

01254275

NU

DCSD01SD

NU

MJ0EQ9

SD

0-6

CG

06/20/01

15:15

X









Moist fine brown sediment with gold fleck

01254276

NU

DCSW01SW

NU

MJ0ER0

sw

-

CG

06/20/01

15:15

X









Clear water no odor.

Copper King

Mine

01254156

NU

CKWP01SS

NU

MJ0GE5

ss

0-6

NA

06/19/01

14:15

X









Fine orange/brown sand with trace gravel and pyrite.

01254157

NU

CKWP02SS

NU

MJ0GE6

ss

0-6

NA

06/19/01

14:25

X









0-3 inches fine orange sand. 3-6 inches fine gray sand.

01254158

NU

CKAD01SW

NU

MJ0GE7

sw

-

NA

06/19/01

15:00

X









Clear water no odor.

01254159

NU

CKPP01SD

NU

MJ0GE8

SD

0-8

NA

06/19/01

15:15

X









Light brown medium sand with gravel.

Sierra Zinc!

Vline/Mill





























01254277

NU

SZTP01SS

NU

MJ0ER1

TL

0-6

GG

06/21/01

10:30

X









Black/gray silt.

01254278

NU

SZTP02SS

NU

MJ0ER2

TL

0-6

GG

06/21/01

10:35

X









White/medium sand.

01254279

NU

SZTP03SS

NU

MJ0ER3

TL

0-6

GG

06/21/01

10:40

X









Beige fine sand/clay, moist.

01254280

NU

SZTP04SS

NU

MJ0ER4

SS

0-6

GG

06/21/01

10:52

X









Dark gray, fine, dry sand.

01254281

NU

SZTP05SS

NU

MJ0ER5

SS

0-6

GG

06/21/01

10:54

X









Dark gray, fine, moist sand.

01254282

NU

SZTP06SS

NU

MJ0ER6

SS

0-6

GG

06/21/01

10:56

X









Black, fine, moist soil.

01254283

NU

SZTP07SS

NU

MJ0ER7

SS

0-6

GG

06/21/01

10:58

X









Gray, lumpy, clayey, dry soil.

01254284

NU

SZTP08SS

NU

MJ0ER8

SS

0-6

GG

06/21/01

11:00

X









Muddy, gray, fine, moist soil.

01254285

NU

SZTP09SS

NU

MJ0ER9

SS

0-6

GG

06/21/01

11:04

X









Coarse, gray, slightly moist soil.

01254286

NU

SZTP10SS

NU

MJ0ES0

SS

0-6

GG

06/21/01

11:11

X









Brown, fine, dry soil.

01254287

NU

SZTP11SS

NU

MJ0ES1

SS

0-6

GG

06/21/01

11:13

X









Brown, fine, dry soil.

01254288

NU

SZTP12SS

NU

MJ0ES2

ss

0-6

GG

06/21/01

11:16

X









Moist, brown, clayey with pebbles.

01254289

NU

SZTP13SS

NU

MJ0ES3

ss

0-6

GG

06/21/01

12:24

X









Gray, moist clay.

01254290

NU

SZTP14SS

NU

MJ0ES4

ss

0-6

GG

06/21/01

12:27

X









Gray, moist clayey soil.

01254291

NU

SZTP15SS

NU

MJ0ES5

ss

0-6

GG

06/21/01

12:29

X









Gray, moist clayey soil.

3-9

Page 5 of 18


-------
Table 3-1

SAMPLE COLLECTION AND ANALYTICAL SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON

EPA
Sample ID

E & E
Sample
ID

Station
Location ID

CLP
Organic
No.

CLP
Inorganic
No.

Matrix

Depth

Sampler

Date

Time

TAL
Metals
Pesticide/
PCBs

roc

VOCs

SVOCs

Description

Sierra Zinc ]

Mine/Mill ((

:ontinued)

























01254292

NU

SZTP16SS

NU

MJ0ES6

SS

0-6

GG

06/21/01

12:33

X









Light gray, slightly moist, clayey soil.

01254293

NU

SZTP17SS

NU

MJ0ES7

ss

0-6

GG

06/21/01

12:35

X









Gray and black, slightly moist, clayey soil.

01254294

NU

SZTP18SS

NU

MJ0ES8

SS

0-6

GG

06/21/01

12:37

X









Gray, dry clayey soil.

01254295

NU

SZTP19SS

NU

MJ0ES9

ss

0-6

GG

06/21/01

12:41

X









Gray, dry clayey soil.

01254296

NU

SZTP20SS

NU

MJ0ET0

ss

0-6

GG

06/21/01

12:43

X









Gray, dry clayey soil.

01254297

NU

SZTP21SS

NU

MJ0ET1

ss

0-6

GG

06/21/01

12:45

X









Gray/brown, dry, clayey soil

01254298

NU

SZAD01SW

NU

MJ0ET2

sw

-

GG

06/21/01

13:39

X









Clear, no odor.

01254299

NU

SZWP01SS

J0ET3

MJ0ET3

ss

0-6

GG

06/21/01

14:00

X

X







Brown, dry fines.

01254300

NU

SZWP02SS

J0ET4

MJ0ET4

ss

0-6

GG

06/21/01

14:05

X

X







Brown, dry fines.

01254301

NU

SZWP03SS

J0ET5

MJ0ET5

ss

0-6

GG

06/21/01

14:10

X

X







Gray, fine, dry sand.

01254302

NU

SZWP04SS

NU

MJ0ET6

ss

0-6

GG

06/21/01

14:22

X









Gray, fine, dry sand.

01254303

NU

SZWP05SS

NU

MJ0ET7

ss

0-6

GG

06/21/01

14:25

X









Gray, fine, dry sand.

01254304

NU

SZWP06SS

NU

MJ0ET8

ss

0-6

GG

06/21/01

14:28

X









Gray, fine, dry sand.

01254305

NU

SZWP07SS

NU

MJ0ET9

ss

0-6

GG

06/21/01

14:33

X









Light brown fine, dry sand.

01254306

NU

SZWP08SS

NU

MJ0EW0

ss

0-6

GG

06/21/01

14:36

X









Light brown, fine, dry, small rocks.

01254307

NU

SZWP09SS

NU

MJ0EW1

ss

0-6

GG

06/21/01

14:39

X









Gray, sandy, fine, dry with rocks.

01254308

NU

SZWP10SS

NU

MJ0EW2

ss

0-6

GG

06/21/01

14:44

X









Gray and black, sandy, dry soil.

01254309

NU

SZWP11SS

NU

MJ0EW3

ss

0-6

GG

06/21/01

14:47

X









Gray and black, sandy, dry soil.

01254310

NU

SZWP12SS

NU

MJ0EW4

ss

0-6

GG

06/21/01

14:50

X









Brown fine, dry soil with rocks.

01254311

NU

SZMS01SS

J0EW5

MJ0EW5

ss

0-6

GG

06/21/01

14:55

X

X







Black, fine, slightly moist, sandy with lumps.

Electric Point Mine/Mill

01254185

NU

EPWP01SS

NU

MJ0GH4

ss

0-6

NA

06/22/01

12:45

X









Fine/medium tan sand with gravel.

01254186

NU

EPWP02SS

NU

MJ0GH5

ss

0-6

NA

06/22/01

12:50

X









Fine/medium tan sand with gravel.

01254187

NU

EPWP03SS

NU

MJ0GH6

ss

0-6

NA

06/22/01

12:58

X









Fine/medium tan sand with gravel.

01254188

NU

EPMS01SS

NU

MJ0GH7

ss

0-6

NA

06/22/01

13:10

X









Fine medium brown sandy silt

01254189

NU

EPMS02SS

NU

MJ0GH8

ss

0-6

NA

06/22/01

13:15

X









Fine medium brown slightly red sandy silt

01254190

NU

EPMS03SS

NU

MJ0GH9

ss

0-6

NA

06/22/01

13:25

X









Fine medium brown slightly red sandy silt

01254191

NU

EPWP04SS

NU

MJ0GJ0

ss

0-6

NA

06/22/01

14:15

X









Fine medium brown slight red sand with trace gravel.

01254192

NU

EPWP05SS

NU

MJ0GJ1

ss

0-6

NA

06/22/01

14:25

X









Light brown/tan sand with some gravel.

01254193

NU

EPTP01SS

NU

MJ0GJ2

ss

0-6

NA

06/22/01

14:35

X









Fine medium light brown sand/silt

01254194

NU

EPTP02SS

NU

MJ0GJ3

ss

0-6

NA

06/22/01

14:40

X









Brown/orange fine sand silt. Dry no odor.

01254195

NU

EPTP03SS

NU

MJ0GJ4

ss

0-6

NA

06/22/01

14:45

X









Brown/tan fine sand with gravel.

3-10

Page 6 of 18


-------
Table 3-1

SAMPLE COLLECTION AND ANALYTICAL SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON

EPA
Sample ID

E & E
Sample
ID

Station
Location ID

CLP
Organic
No.

CLP
Inorganic
No.

Matrix

Depth

Sampler

Date

Time

TAL
Metals
Pesticide/
PCBs

roc

VOCs

SVOCs

Description

Gladstone IV

[ine/Mill



























01254179

NU

GLTP01SS

NU

MJ0GG8

SS

0-6

DW

06/21/01

16:10

X









Fine brown/orange sand/silt. Dry no odor.

01254180

NU

GLTP02SS

NU

MJ0GG9

ss

0-6

NA

06/21/01

16:22

X









Fine brown/orange sand/silt. Dry no odor.

01254181

NU

GLTP03SS

NU

MJ0GH0

SS

0-6

NA

06/21/01

16:30

X









Fine brown silty sand with some orange. Dry no odor.

01254182

NU

GLMS01SS

NU

MJ0GH1

ss

0-6

NA

06/21/01

16:35

X









Fine/medium red/brown sand. No odor.

01254183

NU

GLMS02SS

NU

MJ0GH2

ss

0-6

NA

06/21/01

16:45

X









Medium brown sand/gravel with many rocks. No odor.

01254184

NU

GLMS03SS

NU

MJ0GH3

ss

0-6

NA

06/21/01

16:55

X









Brown/orange fine sand with trace gravel.

Red Top Mine

01254153

NU

RDWP01SS

NU

MJ0GE2

ss

0-6

NA

06/18/01

15:50

X

X







Light brown fine sand with trace gravel. Dry, no odor.

01254154

NU

RDWP02SS

NU

MJ0GE3

ss

0-6

NA

06/18/01

16:00

X

X







Light brown fine sand with trace gravel. Dry, no odor.

01254155

NU

RDWP03SS

NU

MJ0GE4

ss

0-6

NA

06/18/01

16:10

X

X





X

Medium brown fine sand with gravel. Dry, no odor.

Anderson Calhoun Mine/Mill

01374167

NU

ANAD01SW

NU

MJ0KH6

sw

-

HZ

09/11/01

15:25

X









20 sec to fill 1 L bottle. Teal color, no odor.

01374168

NU

ANSS01SS

J0KH1

MJ0KH7

ss

0-6

HZ

09/12/01

9:30

X

X





X

Stained soil black, oily odor, rocky, sandy, near palette.
50% gravel, angular to subangular, gray. 50% sand, very
fine to very coarse.

01374169

NU

ANSS02SS

J0KH2

MJ0KH8

ss

0-6

HZ

09/12/01

9:40

X

X





X

Stained soil black. 70% silt. 25% sand, very fine to very
coarse gravel. 5% gravel (subangular) light brown to gray.

01374170

NU

ANTP01SS

NU

MJ0KH9

ss

0-6

HZ

09/12/01

10

45

X









100% silt, gray.

01374171

NU

ANTP02SS

NU

MJ0KJ0

ss

0-6

HZ

09/12/01

11

00

X









100% silt, gray.

01374172

NU

ANTP03SS

NU

MJ0KJ1

ss

0-6

HZ

09/12/01

11

05

X









100% silt, light gray.

01374173

NU

ANTP04SD

NU

MJ0KJ2

SD

0-6

HZ

09/12/01

11

10

X









100% silt, dark brown to black.

01374174

NU

ANTP05SD

NU

MJ0KJ3

SD

0-6

HZ

09/12/01

11

20

X









100% silt, dark brown to black.

01374175

NU

ANTP06SD

NU

MJ0KJ4

SD

0-6

HZ

09/12/01

11

45

X









100% silt, dark brown to black.

01374177

01090428

ANCK01SD

J0KH4

MJ0KJ6

SD

0-8

HZ

09/12/01

14

00

X

X

X



X

100% silt, light brown to gray, trace organics.

01374178

01090429

ANPP01SD

J0KH5

MJ0KJ7

SD

0-6

HZ

09/12/01

15

10

X

X

X



X

95% silt. 5% sand, subangular, saturated organic odor,
black, dark color.

01374179

NU

ANSS03SS

J0KH6

MJ0KJ8

SS

0-6

HZ

09/12/01

13:15

X

X





X

Sand 50%, very fine to very coarse grain size, brown. Silt
20%, light gray to brown. Gravel 30% very angular to
subangular.

01374180

NU

ANSS04SS

J0KH7

MJ0KJ9

ss

0-6

HZ

09/12/01

13:25

X

X





X

Sand 55%, very fine to very coarse grain size. 45% gravel
to cobbles. Trace silt, medium gray to brown with trace
organics.

3-11

Page 7 of 18


-------














Table 3-1



















SAMPLE COLLECTION AND ANALYTICAL SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON

EPA
Sample ID

E & E
Sample
ID

Station
Location ID

CLP
Organic
No.

CLP
Inorganic
No.

Matrix

Depth

Sampler

Date

Time

TAL
Metals

Pesticide/
PCBs

roc

VOCs

SVOCs

Description

Iroquois Mir

le



























01254356

NU

IRAD01SW

NU

MJ0FJ5

SW

-

RN

06/22/01

13:50

X

X





X

Clear, no odor, no turbidity.

01254357

NU

IRAD02SW

NU

MJ0FJ6

sw

-

RN

06/22/01

14:25

X









Clear, no odor.

01254358

NU

IRWP01SS

NU

MJ0FJ7

ss

0-6

RN

06/22/01

14:40

X









Gray, sandy, slight organic odor, lots of small pebbles.

01254359

NU

IRWP02SS

NU

MJ0FJ8

ss

0-6

RN

06/22/01

14:55

X









Dark gray, sandy gravel.

Melrose Mine

01254151

NU

MLPP01SD

NU

MJ0GE0

SD

0-8

NA

06/18/01

12:10

X

X





X

Brown sand with trace gravel and trace organic

01254152

NU

MLAD01SW

NU

MJ0GE1

SW

-

NA

06/18/01

12:20

X

X





X

No odor to the water, clear

Background

01264251

NU

BK01SS

J0EZ6

MJ0EZ6

ss

0-6

MW

06/24/01

8:00

X

X







Brown, dry, fine soil.

01264275

NU

BK04SS

NU

MJ0F21

ss

0-6

MW

06/28/01

10:10

X









Black, fine, silty soil.

01264276

NU

BK05SS

NU

MJ0F22

ss

0-6

MW

06/28/01

11:30

X









Brown, dry, fine soil.

01264279

NU

BK06SS

NU

MJ0F25

ss

0-6

MW

06/28/01

13:45

X









Brown, dry, fine soil.

01264280

NU

BK07SS

NU

MJ0F26

ss

0-6

MW

06/28/01

15:05

X









Brown, dry, fine soil.

01264281

NU

BK08SS

NU

MJ0F27

ss

0-6

MW

06/28/01

15:45

X









Brown, dry, fine soil.

01374181

01090427

ANBK01SD

J0KH3

MJ0KJ5

SD

0-6

HZ

09/12/01

15:45

X

X

X



X

98% sand, very fine to coarse grained, subangular. Trace
2%gravel, brown.

01374189

NU

ANBK02SS

NU

MJ0KK7

ss

0-6

HZ

09/13/01

14:35

X









Brown color, organic material fine light no cobble

01374163

NU

DTBK01SS

NU

MJ0KH2

ss

0-6

HZ

09/10/01

16:55

X









Sandy soil, trace organics.

01374104

01090404

LBBK01SD

J0KC4

MJ0KC4

SD

0-8

RL

09/10/01

16:15

X

X

X



X

Dry, hard mud with rootlet holes, fine grained, less
organic content, silty.

01374111

01090411

LBBK02SD

J0KD2

MJ0KD2

SD

0-8

RL

09/11/01

10:00

X

X

X



X

Brown, fine to course sand with gravel.

01374108

01090408

NABK01SD

J0KC8

MJ0KC8

SD

0-8

RL

09/10/01

18:30

X

X

X



X

Gravelly sand.

01374109

01090409

NABK02SD

J0KC9

MJ0KC9

SD

0-8

RL

09/11/01

8:05

X

X

X



X

Blue-green, silty clay/clayey silt, firm.

01374187

01090432

NSBK01SD

J0KJ3

MJ0KK5

SD

0-8

JS

09/13/01

13:00

X

X

X



X

20% gravel off white color, max 7-8 mm subangular. 20%
silt, 60% sand - very fine to fine grained.

01374188

NU

NSBK02SS

NU

MJ0KK6

SS

0-6

JS

09/13/01

13:15

X







X

Silty loam light brown to gray

01374114

01090413

NPBK01SD

J0KD4

MJ0KD5

SD

0-8

JS

09/12/01

10:45

X

X

X



X

Light brown, 20% very fine to medium size gravel. 20%
gravel. 60% silty sand, angular to subangular.

01374223

NU

KRBK01SD

J0KK9

MJ0KK9

SD

0-8

MT

09/12/01



X

X





X

Sandy silt, dark brown.

01374224

NU

KRBK02SD

J0KL0

MJ0KL0

SD

0-8

MT

09/12/01



X

X





X

Brown sand.

3-12

Page 8 of 18


-------














Table 3-1

















SAMPLE COLLECTION AND ANALYTICAL SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON

EPA
Sample ID

E & E
Sample
ID

Station
Location ID

CLP
Organic
No.

CLP
Inorganic
No.

Matrix

Depth

Sampler

Date

Time

TAL
Metals

Pesticide/
PCBs

roc

VOCs

SVOCs

Description

WESTON Si

imples



























01224158

NU

RS001

JX556

MJ0981

RS



SMF

05/31/01

0830

X

X









01224159

NU

RS002

JX557

MJ0982

RS



SMF

05/31/01

0900

X

X









01234135

NU

RS003

JX792

MJ0BJ3

RS



SMF

06/08/01

0800

X

X









01264071

NU

RS004

JX830

MJ0BQ4

RS



KB

06/27/01

0700

X

X









01204013

NU

RW001

JX428

MJ08Y5

RS



SMF

05/15/01

1120

X

X



X

X

Clear, colorless, no odor.

01204108

NU

TB001

JX547

NU

TB



SMF

05/14/01

1145







X





01204109

NU

TB002

JX549

NU

TB



SMF

05/14/01

1000







X





01234079

NU

TS001

NU

MJ0BJ7

SD

0-2

SMF

06/05/01

1000

X









0% gravel, -5% sand, 90% silt, -5% clay. Dry, medium
brown. Rootlets are common, no slag, no odor.

01234080

NU

TS002

NU

MJ0BJ5

SD

0-0.5

SMF

06/05/01

1045

X









0% gravel, <1% sand, 100% silt, 0% clay. Light brown,
dry. Organics (rootlets, woody fragments) -20% of
sample.

01234053

NU

TS003

NU

MJ09E4

SD

0-3

KB

06/03/01

1500

X









0% gravel, 30% fine sand, 65% silt, 0%clay, brown, no
odor or slag, no organics, no debris.

01234081

NU

TS004

JX570

MJ0BJ6

SD

0-2

SMF

06/05/01

1145

X

X

X





0% gravel, 30% very fine sand, 70% silt, <1% clay.
Saturated, medium brown at surface, dark gray to black
underneath. Organics include rootlets, twig fragments,
insect casings, and fines. Moderate "sewage" smell.

01234052

NU

TS005

JX559

MJ09E6

SD

0-2

KB

06/03/01

1315

X

X

X





0% gravel, 90% fine to medium sand, 10% silt, 0% clay.
Grayish brown, no odor, no slag, some twigs, no debris.

01234082

NU

TS006

NU

MJ0BJ7

SD

0-2

SMF

06/05/01

1245

X









0% gravel, 60% sand, 40% silt, <1% clay. Saturated,
medium grayish brown. No odor. -' 10% organics
(rootlets and wood fragments). No slag.

01234054

NU

TS007

JX558

MJ09E5

SD

0-4

KB

06/04/01

1430

X

X

X





5% gravel, 75% fine sand, 20% silt, 0% clay, light brown,
no odor or slag, scattered roots, no other debris.

01234083

NU

TS008

NU

MJ0BJ8

SD

0-1

SMF

06/05/01

1400

X









0% gravel, 15% very fine sand, 85% silt, 0% clay. Dry,
medium grayish brown. Organic debris includes rootlets,
twigs, and woody fragments. Organics make up -10% of
sample. No odor, no slag.

01234055

NU

TS009

NU

MJ09E8

SD

0-3

KB

06/04/01

1645

X









0% gravel, 100% sand, 0% silt, 0% clay, brown, no odor
or slag, occasional twigs, no other debris.

01234058

NU

TS010

NU

MJ09E7

SD

0-3

KB

06/04/01

1550

X









20% fine gravel, 80% fine coarse sand, 0% silt, 0% clay.
Brown, no odor or slag, scattered roots, no other debris.

01234084

NU

TS011

NU

MJ0BJ9

SD

0-2

SMF

06/05/01

1445

X









0% gravel, 10% very fine sand, 80% silt, 10% clay. Dry,
grayish brown. Organics (rootlets, wood and bark
fragments) make up - 20% of sample. No odor, no slag.

01234051

NU

TS012

NU

MJ09F0

SD

0-3

KB

06/03/01

1045

X









0% gravel, 40% sand, 60% silt, 0% clay. Dark brown, no
odor, no slag, scattered roots, charcoal.

3-13

Page 9 of 18


-------
Table 3-1

SAMPLE COLLECTION AND ANALYTICAL SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON

EPA
Sample ID

E & E
Sample
ID

Station
Location ID

CLP
Organic
No.

CLP
Inorganic
No.

Matrix

Depth

Sampler

Date

Time

TAL
Metals
Pesticide/
PCBs

roc

VOCs

SVOCs

Description

WESTON Samples (continued)

01234056

NU

TS013

NU

MJ09E9

SD

0-4

KB

06/04/01

1245

X









0% gravel, 75% coarse to fine sand, 25% silt, 0% clay,
grayish brown, no odor or slag, occasional roots/twigs, no
other debris.

01234057

NU

TS014

NU

MJ09F1

SD

0-3

KB

06/04/01

1400

X









0% gravel, 90% coarse to fine sand, 10% silt, 0% clay,
light brown, no odor or slag, occasional twigs, no other
debris.

01234050

NU

TS015

NU

MJ09F2

SD

0-2

KB

06/03/01

0935

X









0% gravel, 60% sand, 40% silt, 0% clay. Dark brown, no
odor, no slag, twigs, pine needles, no debris.

01234096

NU

TS016

NU

MJ0BK8

SD

0-1

SMF

06/05/01

1545

X









0% gravel, 50% very fine to coarse sand, 50% silt, <1%
clay. Dry, medium grayish brown. 10% organics
including rootlets and grass detritus, no odor, no slag.

01234097

NU

TS017

NU

MJ0BK9

SD

0-1

SMF

06/05/01

1630

X









0% gravel, 20% very fine sand, 80% silt, 0% clay. Dry,
light grayish brown. 10% organics, including rootlets and
woody fragments, no odor, no slag.

01234098

NU

TS018

NU

MJ0BL0

SD

0-1

SMF

06/06/01

0945

X









0% gravel, 10% very fine sand, 80% silt, 10% clay. Dry,
medium grayish brown. 10% orgnaic debris, including
twig framents and rootlets. No odor, no slag.

01234085

NU

TS019

NU

MJ09F3

SD

0-2

SMF

06/06/01

1030

X









20% gravel (granules up to 1 cm), 65% fine to coarse
sand, 15% silt, 0% clay. Dry, medium grayish brown to
dark grayish brown. No odor, no slag. <5% organics
(rootlets and woody fragments).

01234059

NU

TS020

NU

MJ09F4

SD

0-2.5

SMF

06/03/01

1030

X









0% gravel, 10% sand, 50% silt, 40% clay, FI2S odor.
Dark gray, moist, some plant material.

01234060

NU

TS021

NU

MJ09F5

SD

0-1.5

SMF

06/03/01

1100

X









0% gravel, 20% fine to very fine sand, 55% silt, 25%
clay. Dry, light brownish gray. Some plant debris, no
odor, no slag.

01234099

NU

TS022

JX571

MJ0BL1

SD

0-2

SMF

06/06/01

1100

X

X

X





0% gravel, 60% very fine to medium sand, 30% silt, 10%
clay. Saturated. Medium-dark reddish brown. Some
rootlets. No odor, no slag observed.

01234100

NU

TS023

NU

MJ0BL2

SD

0-1.5

SMF

06/06/01

1245

X









0% gravel, 10% fine to very fine sand, 90% silt, 1% clay.
Saturated. Medium grayish brown. Abundant organics
including rootlets and leaf debris and fines. No odor, no
slag.

01234101

NU

TS024

NU

MJ0BL3

SD

0-3

SMF

06/06/01

1300

X









<1% gravel (granules), 30% very fine sand, 65% silt,
<5% clay. Dry, light brownish gray. Organics including
rootlets and woody fragments make up ~5% of sample.
No odor, no slag.

3-14

Page 10 of 18


-------














Table 3-1















SAMPLE COLLECTION AND ANALYTICAL SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON

EPA
Sample ID

E & E
Sample
ID

Station
Location ID

CLP
Organic
No.

CLP
Inorganic
No.

Matrix

Depth

Sampler

Date

Time

TAL
Metals

Pesticide/
PCBs

roc

VOCs

SVOCs

Description

WESTON Samples (continued)

01234102

NU

TS025

NU

MJ0BL4

SD

0-5

SMF

06/06/01

1330

X









0% gravel, 65% fine to coarse sand, 35% silt, 0% clay.
Dry, light grayish brown. Organic debris including bark,
rootlets, and twig fragments ~1" long comprise 40% or
more of the sample as a whole.

01234061

NU

TS026

NU

MJ09F6

SD

0-2

SMF

06/03/01

1300

X









10% fine gravel, 40% fine-coarse sand, 50% silt, 0% clay,
dark brown, saturated, abundant fine organic particles.
No slag. Algae odor.

01234064

NU

TS027

NU

MJ09F7

SD

0-2

KB

06/04/01

1200

X









0% gravel, 35% fine sand, 65% silt, 0% clay, dark brown,
no odor or slag, scattered twigs, no other debris.

01234086

NU

TS028

NU

NJ09F8

SD

0-2

SMF

06/06/01

1415

X









0% gravel, 60% sand, 40% silt, <1% clay. Saturated,
medium brown. No odor. ~5% organics (woody
fragments). No slag.

01234062

NU

TS029

NU

MJ09F9

SD

0-1

SMF

06/03/01

1345

X









40% flat, angular gravel (1/4" 1/2"), 30% fine to coarse
sand, 30% silt, <1% clay. Medium gray. Small insects,
some organics, no slag, no odor, dry.

01234087

NU

TS030

NU

MJ09G0

SD

0-1.5

SMF

06/06/01

1515

X









0% gravel, 65% fine to medium sand, 20% silt, 15% clay.
Dry to moist, medium grayish brown. Organic material
makes up -20% of sample (rootlets, leaf debris, woody
material).

01234103

NU

TS031

JX572

MJ0BL5

SD

0-8

SMF

06/06/01

1600

X

X

X





0% gravel, 100% fine to very fine sand, 0% silt, 0% clay.
Highly organic, largely mossy and other plant debris, like
peat moss in appearance. Dry, medium to dark grayish
brown. No slag.

01234112

NU

TS032

NU

MJ0BM4

SD

0-2

KB

06/07/02

0915

X









5% fine gravel, 80% medium to fine sand, 15% silt, 0%
clay. Dark brown, no odor or slag, occasional woody
debris.

01234063

NU

TS033

NU

MJ09G1

SD

0-2

SMF

06/03/01

1450

X









0% gravel, 10% very fine sand, 80% silt, 10% clay. Very
dark grayish brown, highly organic, saturated. Strong S
odor, some insect "shells", no slag. Fine organics,
apparently from moss.

01234113

NU

TS034

NU

MJ0BM5

SD

0-3

KB

06/07/01

1000

X









0% gravel, 100% medium sand, 0% silt, 0% clay, light
brown, no odor or slag, no organics, no other debris.

01234128

NU

TS035

NU

MJ0BK8

SD

0-4

SMF

06/09/01

1500

X









<1% gravel (granules), 60% very fine sand, 35% silt,
<5% clay. Moist, dark grayish brown. Minor amounts of
plant detritus. No odor, no slag.

01234129

NU

TS036

JX793

MJ0BK9

SD

0-6

SMF

06/09/01

1530

X

X

X





<1% angular gravel, 5% very fine sand, 65% silt
(including clods), 30% clay. Dry, grayish brown. "Soil"
odor, no slag. Organics include rootlets, 10-15% of
sample.

01234067

NU

TS037

NU

MJ09G2

SD

0-4

KB

06/04/01

0930

X









0% gravel, 100% fine sand, 0% silt, 0% clay. Grayish
brown. No odor or slag, scattered roots, no debris.

Page 11 of:

3-15


-------














Table 3-1















SAMPLE COLLECTION AND ANALYTICAL SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON

EPA
Sample ID

E & E
Sample
ID

Station
Location ID

CLP
Organic
No.

CLP
Inorganic
No.

Matrix

Depth

Sampler

Date

Time

TAL
Metals

Pesticide/
PCBs

roc

VOCs

SVOCs

Description

WESTON Samples (continued)

01234068

NU

TS038

JX560

MJ09G3

SD

0-3

KB

06/04/01

1030

X

X

X





10% gravel, 70% fine sand, 20% silt, 0% clay, brown, no
odor or slag, scattered roots, no other debris.

01234114

NU

TS039

NU

MJ0BM6

SD

0-2

KB

06/07/01

1030

X









5% fine gravel, 95% medium to fine sand, 0% silt, 0%
clay. Light brown, no odor or slag. No organics or other
debris.

01234071

NU

TS040

NU

MJ09G6

SD

0-3

KB

06/06/01

1200

X









0% gravel, 100% fine sand, 0% silt, 0% clay, light brown,
no odor or slag, no organics, no other debris.

01234115

NU

TS041

NU

MJ0BM7

SD

0-2

KB

06/07/01

1130

X









0% gravel, 60% medium sand, 40% silt, 0% clay. Brown,
no odor or slag, no organics, no other debris.

01234116

NU

TS042

NU

MJ0BM8

SD

0-1

KB

06/07/01

1300

X









0% gravel, 50% fine sand, 50% silt, 0% clay, dark brown,
no odor or slag, no organics or other debris.

01234072

NU

TS043

NU

MJ09G7

SD

0-4

SMF

06/04/01

1015

X









0% gravel, 70% sand, 30% silt, -1% clay, no odor,
medium brown, dry. Sand is predominantly coarse -
medium. Organics from soil horizon include woody
fragments and rootlets.

01234106

NU

TS044

JX573

MJ0BL8

SD

0-4

KB

06/06/01

1500

X

X

X





0% gravel, 90% fine sand, 10% silt, 0% clay. Light
brown, no odor or slag, occasional roots and woody
debris.

01234075

NU

TS045

JX564

MJ09H0

SD

0-7

SMF

06/04/01

1830

X

X

X





1% gravel (granules 1 cm long), <5% fine-very fine sand,
90% silt, 5% clay. Moist, dark brown. Rootlets, no odor,
abundant organics, some woody debris.

01234076

NU

TS046

JX565

MJ0BJ1

SD

0-1.5

SMF

06/04/01

1745

X

X

X





<1% gravel, 40% sand, 60% silt, 0% clay. Saturated,
medium grayish brown, very slight organic odor, organic
matter including rootlets, leaves and fine organics, and
woody pieces, twigs.

01234077

NU

TS047

JX566

MJ0BJ2

SD

0-2

SMF

06/04/01

1715

X

X

X





1% gravel, 15% sand (medium to coarse), 40% silt,
44% clay. Strong sewage odor, saturated, very dark gray.
Organic matter including rootlets.

01234073

NU

TS048

JX562

MJ09G8

SD

0-2

SMF

06/04/01

1105

X

X

X





20% gravel (granules up to 1 cm), 80% sand (fine to
coarse), trace silt, 0% clay. Multi-colored grains,
saturated. No obvious slag, no odor.

01234117

NU

TS049

NU

MJ0BM9

SD

0-2

KB

06/07/01

1645

X









0% gravel, 100% coarse to fine sand, 0% silt, 0% clay.
Brown, no odor or slag, scattered roots, no other debris.

01234136

NU

TS050

NU

MJ0BJ4

SD

0-3

SMF

06/09/01

1730

X









<1% gravel, 70% very coarse to very fine sand, 20% silt,
10% clay. Wet, dark gray, no odor.

01234118

NU

TS051

NU

MJ0BN0

SD

0-3

KB

06/07/01

1600

X









0% gravel, 70% medium to fine sand, 30% silt, 0% clay.
Dark brown, no odor or slag, occasional roots/pine
needles, no other debris.

3-16

Page 12 of 18


-------














Table 3-1















SAMPLE COLLECTION AND ANALYTICAL SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON

EPA
Sample ID

E & E
Sample
ID

Station
Location ID

CLP
Organic
No.

CLP
Inorganic
No.

Matrix

Depth

Sampler

Date

Time

TAL
Metals

Pesticide/
PCBs

roc

VOCs

SVOCs

Description

WESTON Samples (continued)

01234104

NU

TS052

NU

MJ0BK6

SD

0-4

KB

06/07/01

1500

X









0% gravel, 100% coarse sand, 0% silt, 0% clay. Brown,
no odor or slag, scattered roots, no other debris. Bottom
inch of material sampled consisted of 70% sand, 30% silt,
dark brown.

01234119

NU

TS053

NU

MJ0BN1

SD

0-2

KB

06/07/01

1430

X









0% gravel, 85% medium to fine sand, 15% silt, 0% clay,
brown, no odor or slag. No organics or other debris.

01234120

NU

TS054

NU

MJ0BN2

SD

0-2

KB

06/07/01

1400

X









0% gravel, 100% coarse to fine sand, 0% silt, 0% clay.
Light brown, no odor or slag, no organics or other debris.

01234078

NU

TS055

NU

MJ0BJ3

SD

0-1

SMF

06/04/01

1300

X









0% gravel, 90% sand (very fine to fine), ~'5% silt, ~5%
clay. Medium brown/grayish brown, saturated, no odor.
Some fine black particulates, but not obvious slag. Black
organic particles also.

01234107

NU

TS056

JX574

MJ0BL9

SD

0-1.5

KB

06/06/01

1645

X

X

X





0% gravel, 80% fine sand, 20% silt, 0% clay. Light
brown, no odor or slag, scattered roots and woody debris.

01234108

NU

TS057

JX791

MJ0BM0

SD

0-3

KB

06/06/01

1600

X

X

X





0% gravel, 80% coarse to fine sand, 20% silt, 0% clay.
Grayish brown, no odor or slag, scattered woody debris.

01234109

NU

TS058

NU

MJ0BM1

SD

0-4

KB

06/06/01

1400

X









0% gravel, 100% medium to fine sand, 0% silt, 0% clay.
Grayish brown, no odor or slag, occasional woody twigs,
no other debris.

01234121

NU

TS059

NU

MJ0BJ1

SD

0-5

SMF

06/09/01

1645

X









10% gravel, 70% fine to coarse sand, 10% silt, 10% clay.
Moist, dark brownish gray, slight sulfur odor, no slag,
some shell material.

01234065

NU

TS060

NU

MJ09F8

SD

0-1

KB

06/06/01

0900

X









15% fine gravel, 75% coarse and fine sand, 10% silt, 0%
clay, brown, no odor or slag. Occasional pine needles, no
other debris.

01234110

NU

TS061

NU

MJ0BM2

SD

0-3

KB

06/06/01

1245

X









5% fine gravel, 90% coarse to fine sand, 5% silt, 0% clay.
Dark brown, no odor or slag, occasional woody twig
material, no other debris.

01234111

NU

TS062

NU

MJ0BM3

SD

0-7

KB

06/06/01

1130

X









0% gravel, 90% medium to fine sand, 0% silt, 10% clay.
Dark brown, no odor or slag, frequent wood and charcoal
fragments, no other debris.

01234123

NU

TS063

JX803

MJ0BK3

SD

0-4

KB

06/08/01

1615

X

X

X





2% fine gravel, 10% coarse sand, 20% medium sand,
68% fine sand, 0% silt, 0% clay. Gray, no odor or slag.
Frequent pine needles, no other debris.

01234127

NU

TS064

JX807

MJ0BK7

SD

0-3.5

SMF

06/08/01

1120

X

X

X





5% gravel, 75% fine sand, 20% silt, <1% clay. Dry,
grayish brown with abundant light cream-colored coarse
sand and granules. "Soil" odor, no slag. Organics
including rootlets and small woody pieces make up 20%
of sample.

3-17

Page 13 of 18


-------














Table 3-1















SAMPLE COLLECTION AND ANALYTICAL SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON

EPA
Sample ID

E & E
Sample
ID

Station
Location ID

CLP
Organic
No.

CLP
Inorganic
No.

Matrix

Depth

Sampler

Date

Time

TAL
Metals

Pesticide/
PCBs

roc

VOCs

SVOCs

Description

WESTON Samples (continued)

01234125

NU

TS065

JX805

MJ0BK5

SD

0-1

SMF

06/08/01

1130

X

X

X





<1% gravel, 60% very fine to fine sand, 40% silt, <1%
clay. Damp, "soil" odor. Grayish dark brown. Organics
include rootlets, ants, twig fragments (1" long, 5 mm
thick). No slag

01234126

NU

TS066

NU

MJ0BK6

SD

0-1.5

SMF

06/08/01

1245

X









0% gravel, 40% very fine sand, 55-60% silt, <5% clay.
Saturated, grayish brown surface, dark gray beneath. H2S
odor. Some rootlets and small worm.

01234066

NU

TS067

JX567

MJ09G0

SD

0-2

KB

06/05/01

1345

X

X

X





10% fine gravel, 90% coarse to fine sand 0% silt, 0%
clay, brown, no odor or slag. Occasional twigs, no other
debris.

01234088

NU

TS068

NU

MJ0BK0

SD

0-1

KB

06/06/01

1030

X









10% fine gravel. 75% coarse to fine sand, 15% silt, 0%
clay. Brown, no odor or slag, occasional twigs, no other
debris.

01234092

NU

TS069

NU

MJ0BK4

SD

0-3

KB

06/05/01

1320

X









5% fine gravel, 95% medium sand, 0% silt, 0% clay.

Light brown, no odor or slag, scattered roots and twigs, no
other debris.

01234089

NU

TS070

NU

MJ0BK1

SD

0-8

KB

06/05/01

1530

X









0% gravel, 90% fine sand, 10% silt, 0% clay. Dark
brown, no odor or slag, occasional twigs, no other debris.

01234090

NU

TS071

NU

MJ0BK2

SD

0-2

KB

06/05/01

1600

X









0% gravel, 85% medium to fine sand, 15% silt, 0% clay,
brown, no odor or slag. Occasional twigs, no other
debris.

01234091

NU

TS072

JX568

MJ0BK3

SD

0-3

KB

06/05/01

1430

X

X

X





10% fine gravel, 90% coarse to fine sand 0% silt, 0%
clay, brown, no odor, slightly magnetic possibly slag,
occasional twigs, no other debris.

01234093

NU

TS073

NU

MJ0BK5

SD

0-3

KB

06/05/01

1145

X









0% gravel, 100% fine to medium sand, 0% silt, 0% clay.
Brown, no odor or slag, occasional organics, no other
debris.

01234094

NU

TS074

NU

MJ0BK6

SD

0-5

KB

06/05/01

1100

X









15% fine gravel, 75% coarse and fine sand, 10% silt, 0%
clay, grayish brown, no odor or slag. No organics, no
other debris.

01234095

NU

TS075

JX569

MJ0BK7

SD

0-2

KB

6/5/011

0945

X

X

X





0% gravel, 100% fine to medium sand, 0% silt, 0% clay.
Light brown, fine-grained black magnetic material,
possible slag, occasional twigs, no other debris.

01214101

NU

TS076

NU

MJ0952

SD

0-1

SF

05/21/01

1715

X









Silt with sand and clay. 0%gravel 20% sand 40% silt 20%
clay. Tan brown, dry, no odor, no slag, roots and plant
material.

01214103

NU

TS077

NU

MJ0953

SD

0-1

SF

05/22/01

1045

X









0% gravel, 5% sand, 10% silt, 85% organic matter, dark
brown, roots, leaves.

01214105

NU

TS078

NU

MJ0954

SD

0-1

SF

05/22/01

1345

X









15% gravel, 50% sand, 35% silt, dark brown, no odor,
roots and bulbs (small).

3-18

Page 14 of 18


-------














Table 3-1















SAMPLE COLLECTION AND ANALYTICAL SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON

EPA
Sample ID

E & E
Sample
ID

Station
Location ID

CLP
Organic
No.

CLP
Inorganic
No.

Matrix

Depth

Sampler

Date

Time

TAL
Metals

Pesticide/
PCBs

roc

VOCs

SVOCs

Description

WESTON Samples (continued)

01214107

NU

TS079

NU

MJ0955

SD

0-1

SF

05/22/01

1455

X









15% gravel, 50% sand, 35% silt, dark brown, no odor,
roots and bone fragment, dry.

01214109

NU

TS080

NU

MJ0956

SD

0-1

SF

05/22/01

1550

X









Trace to 0% gravel, 60% fine sand, 30% silt, 10% clay,
mica, some organic debris, no odor or stain.

01214111

NU

TS081

NU

MJ0957

SD

0-1

SF

05/22/01

1705

X









0% gravel, 30% fine sand, 60% silt, 10% clay, lots of
organics - leaves, roots, decaying smell.

01214113

NU

TS082

NU

MJ0958

SD

0-1

SF

05/22/01

1735

X









Trace to 0% gravel, 30% fine sand, 40% silt, no odor,
roots, etc.

01214115

NU

TS083

NU

MJ0959

SD

0-2

SF

05/23/01

1100

X









Trace to 0% gravel, 40% fine sand, 30% fine silt, 30%
organics.

01214117

NU

TS084

NU

MJ0960

SD

0-2

SF

05/23/01

1220

X









0% gravel, 95% sand, 5% or less silt, light tan brown, no
odor, some organics (root, leaves)

01214119

NU

TS085

NU

MJ0961

SD

0-0.5

SF

05/23/01

1410

X









60% organics, 10% sand, 30% silt, trace clay, dark brown
organics (roots, plants), no odor.

01214121

NU

TS086

NU

MJ0962

SD

***

SF

05/23/01

1445

X











01214123

NU

TS087

NU

MJ0963

SD

0-1

SF

05/23/01

1555

X









10% gravel, 60% fine sand, 30% silt, light tan brown,
organics (roots/leaves/sticks), dry.

01214125

NU

TS088

NU

MJ0964

SD

0-1

SF

05/23/01

1640

X









0% gravel, 60% sand, 35% silt, 5% clay, dark brown,
organics (roots, leaves) no odor.

01214129

NU

TS089

NU

MJ0968

SD

0-2

SMF

05/23/01

1645

X









1% gravel, 90% sand, 10% silt, 0% clay, highly organic
soil (no slag).

01234137

NU

TS090

JX795

MJ0BJ5

SD

0-3

SMF

06/08/01

1645

X

X

X





<5% gravel (angular granules), 85% predominantly
angular very coarse to very fine sand, 10% silt, <1% clay.
Saturated, dark grayish brown. Organics including
rootlets, leaf debris, insect shells, and fines make up 20%
or less of sample.

01234143

NU

TS091

NU

MJ0BJ2

SD

0-6

SMF

06/08/01

1545

X









0% gravel, 70% sand, 30% silt, <1% clay. Moist,
medium brown, no odor, no slag. Organics including
rootlets and fine humus material make up 50% of sample.

3-19

Page 15 of 18


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Table 3-1















SAMPLE COLLECTION AND ANALYTICAL SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON

EPA
Sample ID

E & E
Sample
ID

Station
Location ID

CLP
Organic
No.

CLP
Inorganic
No.

Matrix

Depth

Sampler

Date

Time

TAL
Metals

Pesticide/
PCBs

roc

VOCs

SVOCs

Description

WESTON Samples (continued)

01234138

NU

TS092

JX796

MJ0BJ6

SD

0-1

SMF

06/08/01

1500

X

X

X





0% gravel, 60% coarse to very fine sand, 30% silt, <10%
clay. Saturated. Medium brown to dark grayish brown.
Minor organics as rootlets and woody fragments, but
abundant fine organics. No odor, no slag.

01214127

NU

TS093

NU

MJ0967

SD

0-2

SMF

05/24/01

1215

X









0% gravel, 50% sand, 40% silt, 10% clay, moist, medium-
dark brown, highly organic, no slag.

01214131

NU

TS094

NU

MJ0969

SD

0-2

SMF

05/24/01

1300

X









1% gravel as granules, 40% fine sand, 50% silt, 10% clay,
moist, grayish brwon, 2% organics. No slag.

01214133

NU

TS095

NU

MJ0970

SD

0-2

SMF

05/24/01

1345

X









0% gravel, 60% sand, 40% silt, 0% clay, saturated,
medium grayish brown , -10% organics, no slag.

01234139

NU

TS096

JX797

MJ0BJ7

SD

0-5

KB

06/08/01

1145

X

X

X





5% fine gravel, 20% coarse sand, 25% medium sand,
40% fine sand, 10% silt, 0% clay. Brown, no odor or
slag, occasional roots, no other debris.

01214135

NU

TS097

NU

MJ0971

SD

0-3

SMF

05/24/01

1615

X









0% gravel, 40% sand, 40% silt, 20% clay. Medium-dark
gray, saturated. Cow manure and woody organics, and
grass. No slag.

01214137

NU

TS098

NU

MJ0972

SD

0-3

SF

05/24/01

1530

X











01234140

NU

TS099

JX798

MJ0BJ8

SD

0-4

KB

06/08/01

1300

X

X

X





0% gravel, 2% coarse sand, 15% medium sand, 80% fine
sand, 3% silt, 0% clay. Dark brown, no odor or slag,
occasional twigs and roots, no other debris.

01214139

NU

TS100

NU

MJ0973

SD

0-1.5

SF

05/24/01

1435

X









0% gravel, -60% organics, 30% sand, 10% silt, dark
brown, roots, plant material.

01234141

NU

TS101

JX799

MJ0BJ9

SD

0-4

KB

06/09/01

1030

X

X

X





3% fine gravel, 10% coarse sand, 50% medium sand,
27% fine sand, 10% silt, 0% clay. Brown, no odor or
slag, 1% leaf debris, moss, and thin twig fragments. No
other debris.

01214141

NU

TS102

NU

MJ0974

SD

0-1

SF

05/24/01

1325

X









0% gravel, 20% sand, 80% silt, light tan brown, roots and
grasses, no odor.

01214143

NU

TS103

NU

MJ0975

SD

0-3

SF

05/24/01

1145

X









0% to trace gravel, 85% fine sand, 15% silt, all white
limestone fragments, tan brown, wet, no odor, little
organics.

01234142

NU

TS104

JX800

MJ0BK0

SD

0-2

KB

06/09/01

0930

X

X

X





1% fine gravel, 70% fine sand, 25% silt, 5% clay. Dark
brown, no odor or slag, scattered roots and small plants
1% of sample, no other debris.

01234122

NU

TS105

JX802

MJ0BK2

SD

0-4

KB

06/08/01

1000

X

X

X





5% fine gravel, 15% medium sand, 80% fine sand, 0%
silt, 0% clay. Light brown, no odor or slag, occasional
roots, no other debris.

01224153

NU

TS106

JX552

MJ0976

SD

0-2

SMF

05/31/01

1345

X

X

X





10% gravel (granules), 50% very fine to very coarse sand,
40% silt, 0% clay. Dry, grayish brown, minor plant
material. No observed slag.

3-20

Page 16 of 18


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Table 3-1















SAMPLE COLLECTION AND ANALYTICAL SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON

EPA
Sample ID

E & E
Sample
ID

Station
Location ID

CLP
Organic
No.

CLP
Inorganic
No.

Matrix

Depth

Sampler

Date

Time

TAL
Metals

Pesticide/
PCBs

roc

VOCs

SVOCs

Description

WESTON Samples (continued)

01224152

NU

TS107

NU

MJ0977

SD

0-4

SMF

05/31/01

1300

X









10% gravel (granules), 50% very fine to fine sand, 30%
silt, <10% clay. Dry, grayish brown, abundant rootlets
and plant material. No observed slag. Some mollusc

01224156

NU

TS108

JX553

MJ0978

SD

0-4.5

SMF

05/31/01

1545

X

X

X





0% gravel, 50% sand, 40% silt, 10% clay. Moist, dark
grayish brown, abundant roots and plant organics, no
odor, no observed slag.

01224161

NU

TS109

JX554

MJ0979

SD

0-3

SMF

06/01/01

1100

X

X

X





5% gravel, 55% very coarse to very fine sand, 30% silt,
10% clay. Saturated, brownish gray. Some rootlets and
organics. No odor, no slag.

01224165

NU

TS110

JX555

MJ0980

SD

0-8

SMF

06/01/01

1330

X

X

X





1% gravel, 85% sand, 13% silt, 1% clay. High organic
debris content and peat. No slag observed.

01264068

NU

US001

JX827

MJ0BQ1

SD

0-3

KB

06/27/01

0900

X

X

X





10% fine gravel, 20% coarse sand, 40% medium sand,
25% fine sand, 5% silt, 0% clay. Brown, with lighter
clasts. Occasional woody debris (5%). No odor or slag or
other debris.

01264050

NU

US005

JX810

MJ0BN3

SD

0-3

KB

06/25/01

0945

X

X

X





3% fine gravel, 5% coarse sand, 57% medium sand, 25%
fine sand, 10% silt, 0% clay. Dark brown, no odor, slag,
organics, or other debris.

01264051

NU

US006

JX811

MJ0BN4

SD

0-3

KB

06/25/01

1315

X

X

X





10% fine gravel, 30% coarse sand, 45% medium sand,
10% fine sand, 5% silt, 0% clay. Grayish brown, no odor,
slag, organics, or other debris.

01264054

NU

US007

JX814

MJ0BN7

SD

0-4

KB

06/25/01

1445

X

X

X





0% gravel, 0% coarse sand, 20% medium sand, 30% fine
sand, 40% silt, 10% clay). Brown, no odor, no slag.
Scattered roots, no other debris.

01264055

NU

US008

JX815

MJ0BN8

SD

0-6

KB

06/25/01

1500

X

X

X





0% gravel, 75% fine sand, 20% silt, 5% clay. Reddish
brown, no odor or slag. Occasional roots, no other debris.

01264053

NU

US009

JX813

MJ0BN6

SD

0-8

KB

06/25/01

1300

X

X

X





0% gravel, 5% coarse sand, 0% medium sand, 75% fine
sand, 20% silt, 0% clay. Brown. No odor, no slag.
Occasional roots, no other debris.

01264059

NU

US010

JX819

MJ0BP2

SD

0-4

KB

06/25/01

1215

X

X

X





15% fine gravel, 45% coarse sand, 30% medium sand,
10% fine sand, 0% silt, 0% clay. Brown, no odor, slag,
organics, or any other debris.

01264062

NU

US011

JX822

MJ0BP5

SD

0-10

KB

06/26/01

1615

X

X

X





0% gravel, 0% sand, 95% silt, 5% clay. Dark brown,
slight organic odor, no slag. 25% organic material as roots
and leaves. No other debris.

01264060

NU

US012

JX820

MJ0BP3

SD

0-1

KB

06/26/01

1230

X

X

X





0% gravel, 10% coarse sand, 50% medium sand, 35%
fine sand, 5% silt, 0% clay. Brown. No odor, no slag, no
organics, no other debris.

01264058

NU

US013

JX818

MJ0BP1

SD

0-4

KB

06/26/01

1000

X

X

X





10% fine gravel, 10% coarse sand, 40% medium sand,
35% fine sand, 5% silt, 0% clay. Brown, no odor, no
slag. No organics or any other debris.

3-21

Page 17 of 18


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Table 3-1



















SAMPLE COLLECTION AND ANALYTICAL SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON

EPA
Sample ID

E & E
Sample
ID

Station
Location ID

CLP
Organic
No.

CLP
Inorganic
No.

Matrix

Depth

Sampler

Date

Time

TAL
Metals

Pesticide/
PCBs

roc

VOCs

SVOCs

Description

WESTON Si

imples (con

tinued)

























01264069

NU

UW001

NU

MJ0BQ2

SW

0

KB

06/27/01

0930

X











01264052

NU

UW004

NU

MJ0BN5

sw

0

KB

06/25/01

1345

X











01264063

NU

UW005

NU

MJ0BP6

SW

0

KB

06/26/01

1600

X











01264061

NU

UW006

NU

MJ0BP4

sw

0

KB

06/26/01

1245

X











01264066

NU

UW007

NU

MJ0BP9

sw

0

KB

06/27/01

1645

X











Key:

AD

= Adit water.

NA

= Neil Amick.

AJ

= A1 Johnson.

No.

= Number.

AN

= Anderson Calhoun Mine/Mill.

NP

= Napoleon Mine/Mill.

BK

= Background.

NS

= LeRoi Northport Smelter.

BR

= Black Rock Mine/Mill.

NU

= Not used.

CG

= Charlie Gregory.

PCBs

= Polychlorinated biphenyls.

CK

= Copper King Mine.

PP

= Probable point of entry.

CK

= Creek.

RD

= Red Top Mine

CLP

= Contract Laboratory Program.

RL

= Ralph Lambert.

CS

= Columbia River sediment.

RN

= Renee Nordeen.

CW

= Columbia River surface water.

RS

= Rinsate of sampling equipment.

DC

= Deep Creek Mine.

S

= sulfur

DT

= Daisy Mine.

SD

= Sediment.

DT

= Ditch.

SF

= Sonia Fernandez.

DW

= Dan Weiss.

SL

= Slag.

E&E

= Ecology and Environment, Inc.

SMF

= Susan FitzGerald.

EP

= Electric Point Mine/Mill.

SS

= Stained soil.

EPA

= United States Environmental Protection Agency.

SS

= Surface soil.

GG

= Guy Gregory.

SVOCs

= Semivolatile Organic Compounds.

GL

= Gladstone Mine/Mill.

SW

= Surface water.

GW

= Great Western Mine.

SZ

= Sierra Zinc Mine/Mill.

H2S

= hydrogen sulfide

TAL

= Target Analyte List.

HZ

= Howard Zorzi.

TB

= Trip blank.

ID

= Identification.

TOC

= Total Organic Carbon.

IR

= Iroquois Mine.

TP

= Tailings pile.

JS

= Jessica Spiegel.

TS

= Tributary sediment (downstream sampling location).

KB

= Kevin Broom.

US

= Tributary sediment/soil (upstream/upland sampling location).

LB

= L-Bar Northwest Magnesite.

UW

= Upland surface water.

LC

= Last Chance Mine/Mill.

VOCs

= Volatile Organic Compounds.

ML

= Melrose Mine.

VS

= Van Stone Mine/Mill.

MS

= Mill soil.

WESTON

= Roy F. Weston, Inc.

MT

= Monica Tonel.

WP

= Waste rock pile.

MW

= Mine pit water.





MW

= Mark Woodke.





NA

= Northwest Alloys.





3-22

Page 18 of 18


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4. QUALITY ASSURANCE/QUALITY CONTROL

QA/QC data are necessary to determine precision and accuracy and to demonstrate the absence
of interferences and/or contamination of sampling equipment, glassware, and reagents. Specific QC
requirements for laboratory analyses are incorporated in the Contract Laboratory Program Statement of
Work for Organic Analyses (EPA 1999) and in the Contract Laboratory Program Statement of Work for
Inorganic Analyses (EPA 2000b). These QC requirements or equivalent requirements found in the
analytical methods were followed for analytical work on the upper Columbia River Mines and Mills PAs
and Sis project. This section describes the QA/QC measures taken and provides an evaluation of the
usability of data presented in this report. The QA/QC data memorandums regarding the samples
collected by WESTON can be found in the Upper Columbia River/Lake Roosevelt Expanded Site
Inspection Sampling and Quality Assurance Plan, TDD: 01-02-0001-A, EPA Contract: 68-S0-01-02.
Prepared for the EPA Region 10 by WESTON, May 2001.

All samples were collected following the guidance of the SQAP (E & E 2001) and the Sample
Plan Alteration Forms for the field activities. Soil and water TAL metals analyses were performed at
Sentinel, Inc., Huntsville, Alabama, a CLP laboratory, following CLP statement of work (SOW)
ILM04.1. Soil SVOC and pesticide/PCBs analyses were performed at the EPA's Manchester
Environmental Laboratory, Port Orchard, Washington, following EPA SW-846 Methods 8270
(SVOC analysis) and 8081/8082 (pesticide/PCBs analysis). Soil and water pesticide/PCBs analyses were
performed at Envirosystems, Inc., Columbia, Maryland, a CLP laboratory, following CLP SOW
OLM04.2. Soil and water SVOC and pesticide/PCBs analyses were performed at Mitkem Corporation,
Warwick, Rhode Island, a CLP laboratory, following CLP SOW OLM04.2. Soil SVOC and
pesticide/PCBs analyses were performed at Laucks Testing Laboratories, Inc., Seattle, Washington, a
CLP laboratory, following CLP SOW OLM04.2. Sediment TOC analyses were performed by the E & E,
Analytical Services Center, Lancaster, New York, a START-subcontracted commercial laboratory,
following the Lloyd Kahn method. Soil field screening for copper, lead, and zinc was performed in the
field by Environmental Services Assistance Team (ESAT) personnel following ESAT guidelines.

10:START-2\01020028\S759

4-1


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Data from the CLP laboratories were reviewed and validated by EPA and/or ESAT chemists.

Data from the ST ART -subcontracted commercial laboratory were reviewed and validated by E & E
chemists. Data qualifiers were applied as necessary according to the following guidance:

•	EPA (1990) Quality Assurance/Quality Control Guidance for Removal Activities,
Sampling QA/QC Plan and Data Validation Procedures;

•	EPA (1994a) Contract Laboratory Program National Functional Guidelines for
Inorganic Data Review; and

•	EPA (1999a) Contract Laboratory Program National Functional Guidelines for Organic
Data Review.

In the absence of other QC guidance, method-specific QC limits were also utilized to apply
qualifiers to the data. Copies of the data QA memoranda are included in Appendix D.

4.1	SATISFACTION OF DATA QUALITY OBJECTIVES

The following EPA (1994b) guidance document was used to establish data quality objectives
(DQOs) for this project:

•	Data Quality Objectives Process for Superfund, Interim Final Guidance, EPA
600-R-96-055.

The EPA Task Monitor (TM) determined that definitive data without error and bias
determination would be used for the sampling and analyses conducted during the field activities. The
data quality achieved during the fieldwork produced sufficient data that meets the DQOs stated in the
SQAP (E & E 2001). A detailed discussion of accomplished project objectives is presented in the
following sections.

4.2	QUALITY ASSURANCE/QUALITY CONTROL SAMPLES

QA samples included rinsate blank samples. Trip blank samples were not collected as volatile
organic compound analyses were not performed. Rinsate blank samples collected from sample collection
equipment were submitted for the project. QC samples included matrix spike/matrix spike duplicate
(MS/MSD) samples for organic analyses or MS/duplicate samples for inorganic analyses at a rate of one
MS/MSD or one MS/duplicate per 20 samples per matrix.

10:START-2\01020028\S759

4-2


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4.3 PROJECT-SPECIFIC DATA QUALITY OBJECTIVES

The laboratory data were reviewed to ensure that DQOs for the project were met. The following
describes the laboratories' abilities to meet project DQOs for precision, accuracy, and completeness and
the field team's ability to meet project DQOs for representativeness and comparability. The laboratories
and the field team were able to meet DQOs for the project.

4.3.1	Precision

Precision measures the reproducibility of the sampling and analytical methodology. Laboratory
and field precision is defined as the relative percent difference (RPD) between duplicate sample analyses.
The laboratory duplicate samples or MS/MSD samples measure the precision of the analytical method.

The RPD values were reviewed for all commercial laboratory samples. A total of 161 sample
results (approximately 1.5% of the data) were qualified as estimated quantities (J or UJ) based on
laboratory duplicate QC outliers. The DQO for precision of 85% was met.

4.3.2	Accuracy

Accuracy measures the reproducibility of the sampling and analytical methodology. Laboratory
accuracy is defined as the surrogate spike percent recovery (%R) for each SVOC or pesticide/PCBs
analysis or the MS %Rs for all fixed laboratory analyses. The surrogate %R values were reviewed for all
appropriate sample analyses. No sample results were qualified based on surrogate QC outliers.

The MS %R values were reviewed for all MS/MSD analyses. A total of 463 sample results
(approximately 4.4% of the data) were qualified as estimated quantities (J) based on spike QC outliers.
A total of 161 sample results (approximately 1.5% of the data) were rejected (R) based on spike QC
outliers. Overall, the project DQO for accuracy of 85% was met.

4.3.3	Completeness

Data completeness is defined as the percentage of usable data (usable data divided by the total
possible data). All laboratory data were reviewed for data validation and usability. A total of 29 sample
results (approximately 0.2% of the data) were rejected (R), therefore the project DQO for completeness
of 90% was met.

10:START-2\01020028\S759

4-3


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4.3.4	Representativeness

Data representativeness expresses the degree to which sample data accurately and precisely
represent a characteristic of a population, parameter variations at a sampling point, or environmental
condition. The number and selection of samples were determined in the field to account accurately for
site variations and sample matrices. The DQO for representativeness of 85% was met.

4.3.5	Comparability

Comparability is a qualitative parameter expressing the confidence with which one data set can
be compared to another. Data produced for this site followed applicable field sampling techniques and
specific analytical methodology. The DQO for comparability was met.

4.4 LABORATORY QUALITY ASSURANCE/QUALITY CONTROL PARAMETERS

The laboratory data also were reviewed for holding times and laboratory blank samples. These
QA/QC parameters are summarized below. In general, the laboratory and field QA/QC parameters were
considered acceptable.

4.4.1	Holding Times

A total of 4 sample results (approximately 0.04% of the data) were qualified as estimated
quantities (J or UJ) based on holding time outliers.

4.4.2	Laboratory Blanks

All laboratory blanks met the frequency criteria. The following potential COCs were detected in
the laboratory blanks resulting in qualifications:

SVOCs:	bis(2-ethylhexyl)phthalate; and

TAL Metals: aluminum, antimony, arsenic, barium, beryllium, cadmium, calcium, chromium,
cobalt, copper, iron, lead, magnesium, manganese, nickel, potassium, selenium,
sodium, silver, thallium, vanadium, and zinc.

Four SVOC results and 361 TAL metals results were qualified based on laboratory blank
contamination. Associated sample results less than five times positive blank contamination (10 times for
common laboratory contaminants) were qualified as not detected (U). Associated sample results less

10:START-2\01020028\S759

4-4


-------
than five times the absolute value of negative TAL metals blank contamination were qualified as
estimated quantities (J or UJ). Two TOC results were also qualified as not detected (U) based on
laboratory blank contamination. See Appendix D for results that were qualified based on laboratory
blank contamination.

10:START-2\01020028\S759

4-5


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5. ANALYTICAL RESULTS REPORTING AND BACKGROUND SAMPLES

This section describes the reporting criteria and reporting methods applied to EPA CLP
analytical results presented in Sections 6 and 7 of this report. A discussion of background sample
locations and results also is provided. A list of all samples collected for laboratory analysis is presented
in T able 3 -1.

5.1 ANALYTIC AL RES ULTS EVALUAHO N C RITERIA

Analytical results presented in the summary tables in Sections 6 and 7 show all analytes detected
above laboratory detection limits in bold type. Analytical results indicating significant concentrations of
contaminants in source samples (Section 6) with respect to background concentrations are shown
underlined and in bold type. Similarly, analytical results indicating elevated concentrations of
contaminants in target samples (Section 7) with respect to background concentrations also are underlined
and in bold type. For the purposes of this investigation, significant/elevated concentrations are defined,
using Table 2-3 of the EPA HRS model criteria for observed releases or observed contamination
(significant or elevated concentrations) as follows.

•	Equal to or greater than the sample's Contract Required Quantitation Limit/Contract
Required Detection Limit (CRQL/CRDL) or the sample quantitation limit (SQL) when a
non-CLP laboratory was used; and

•	Equal to or greater than the background sample's CRQL/CRDL or SQL when the
background concentration is below detection limits; or

•	At least three times greater than the background concentration when the
background concentration equals or exceeds the detection limit.

The analytical summary tables present all detected analytes, but only those detected analytes
(specifically arsenic, cadmium, lead, mercury, and zinc) at potential sources or in targets meeting the
significant/elevated concentration criteria are discussed in the report text. All detected concentrations
are discussed for background samples, including those concentrations which were qualified as estimated
because they were detected below the SQL (JB). Because both tailings and waste rock are unique soil

10:START-2\01020028\S759

5-1


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waste matrices placed on surface soil, analytical results of the tailings and waste rock samples collected
were compared to the results for background surface soil. The background surface soil samples consisted
of native soil.

Two sediment samples were collected from the Kettle River (KRBK01SD and KRBK02SD).
KRBKO1SD was collected near the Box Canyon-Deep Creek Road along the Kettle River. KRBK02SD
was collected along the bank of the Kettle River just south of the U.S.-Canada border. Since these
samples were collected outside the project study area they will not be discussed in this report. However,
analytical results for these two samples are provided in Appendix E.

Analytical results are qualified as estimated (J) when the analyte is positively identified as either
present or absent based on the QC data provided by the laboratory. The associated numerical value is the
approximate concentration of the analyte in the sample. Additional qualifiers were applied when
necessary to indicate potential bias of estimated quantities including low, unknown, high, or when the
result was estimated because it was below the SQL:

B = The detected concentration is below the method reporting limit/CRDL, but is above the
instrument detection limit;

H = The numerical result is likely biased high, above the actual concentration;

L = The numerical result is likely biased low, below the actual concentration;

K = The bias of the numerical value is unknown; and

Q = The detected concentration is below the method reporting limit/CRQL, but is above the
method detection limit.

For comparison purposes, the SQL is provided in parenthesis for background results that are
qualified because they are below the SQL. When samples were diluted for reanalysis at a laboratory, the
dilution results were considered for evaluation and are provided in the tables. For target locations, only
those analytes that also were detected in a source at the mine and mill sites were evaluated to determine
whether their concentrations were elevated. All hazardous substances detected using EPA CLP results at
target locations and meeting evaluation criteria can be used to document an observed release from the
source at the mines and mills to the target.

Based on the EPA Region 10 policy, evaluation of the common earth crust elements (aluminum,
calcium, iron, magnesium, potassium, and sodium) is generally employed only in water mass tracing,
which is beyond the scope of this report. For this reason, these elements and results will not be discussed
in this report, but are presented in the analytical results summary tables when detected.

10:START-2\01020028\S759	5 -2


-------
5.2 BACKGROUND SAMPLES

Background samples were collected for each of the naturally occurring medium from which
samples were collected. Those media are surface soil and sediment. A background surface water sample
is not presented in this report since all surface water sample results discussed are from sources of
contamination which do not require comparison to background concentrations. Results for the
appropriate background sample(s) appear as the first column(s) in the analytical results summary tables
in Sections 6 and 7 for comparison against source or target results.

5.2.1 Background Surface Soil
5.2.1.1 Sample Locations

Mine and mill-specific background surface soil samples were collected for the Daisy Mine
(DTBK01SS; Figure 6-2), the LeRoi/Northport Smelter (NSBK02SS; Figure 6-17), the Anderson
Calhoun Mine/Mill (ANBK02SS; Figure 6-38), and the Van Stone Mine/Mill (US007, US008, and
US009; Appendix H).

DTBKOlSSwas located approximately 60 feet north and upgradient from Daisy Mine.
NSBK02SS was collected south of the LeRoi/Northport Smelter. ANBK02SS was located east and
upgradient of the Anderson Calhoun Mine/Mill. US007, US008, and US009 were collected upgradient
of the Van Stone Mine/Mill.

In addition, six background surface soil samples (BKOlSSand BK04SS through BK08SS) were
collected from locations within the general project area (Figure 5-1). Sample locations are listed in
Table 3-1. BKOlSSwas located south of the Comfort Inn in Colville. BK04SS was located
approximately 2.2 miles on Black Canyon Road, upgradient of mining activity. BK05SS was located
approximately 200 yards off the unnamed road leading toward residences south of Deep Creek Mine.
BK06SS was located approximately 1.5 miles upgradient from Magma Mine and near the unnamed road.
BK07SS was located along Silver Creek Road. BK08SS was located upgradient from Iroquois Mine.

The surface soil samples were collected from 0 to 6 inches bgs. The matrix of the samples
appeared similar to that of the native soil observed at the mines and mills.

For those mines and mills were site-specific background soil samples were unobtainable due to
accessibility and safety concerns, background analyte concentrations for those mine and mill sites were
established using the highest analyte concentration from all background soil samples collected. These
assignments were determined by the EPA TM. Refer to Table 5-1.

10:START-2\01020028\S759

5-3


-------
Background concentrations of TAL metals, pesticide/PCBs, TOC, and SVOCs will be compared
to source and target sample concentrations, as described in Sections 6 and 7. The purpose of the
comparison is to determine if concentrations of substances found in source and target samples are
significant/elevated with respect to background concentrations as defined, using the EPA HRS model
criteria.

5.2.1.2 Sample Results

Refer to T able 5-1 and 5-3 for E & E and WEST ON sample results, respectively.

5.2.2 Background Sediment
5.2.2.1 Sample Locations

Seven background sediment locations were sampled within the project area. Sample locations
are listed in T able 3 -1.

LBBKO1SD was located downstream of the confluence of Logan Road ditch and the unnamed
ditch adjacent to L-Bar/Northwest Magnesite and reflects background concentrations for the West Ditch
sampled at L-Bar/Northwest Magnesite. LBBK02SD was located on the Colville River near the
Burlington Railroad and U.S. 395 and reflects background concentrations for the probable point of entry
(PPE) sample to surface water at L-Bar/Northwest Magnesite (Figure 6-4).

NABK01SD was located on Stensgar Creek approximately 60 feet west of the confluence of
Stensgar Creek and the Columbia River and reflects background concentrations for Stensgar Creek and
the ditch sampled near Northwest Alloys. NABK02SD was located approximately 30 feet south of the
confluence of Stensgar Creek and the Colville River and reflects background concentrations for the
Colville River sampled near Northwest Alloys (Figure 6-6).

NPBKO1 SD was located upstream and upgradient in the unnamed creek near Napoleon
Mine/Mill and reflects background concentrations for the unnamed creek sampled at Napoleon
Mine/Mill (Figure 6-8).

NSBKO1 SD was located south of the LeRoi/Northport Smelter along the unnamed creek near
Northport-Waneta Road and reflects background concentrations for the unnamed creek sampled at the
LeRoi/Northport Smelter (Figure 6-17).

The analytical results of a sediment sample collected in May of 2001 by Ecology at Lower
Arrow Lake in Canada (sample number 01198040) will be used to establish background concentrations
for the sediment samples collected along the Columbia River (Figure 6-18).

10:START-2\01020028\S759

5-4


-------
ANBK01SD was located approximately 200 yards south of the Anderson Calhoun Mine/Mill on
the unnamed creek which flows through the site. ANBKO1SD reflects background concentrations for the
unnamed creek sampled at the Anderson Calhoun Mine/Mill (Figure 6-38).

For those mine and mill sites where site-specific background sediment samples were
unobtainable due to accessibility and safety concerns, background analyte concentrations were
established using the highest analyte concentration from all background sediment samples collected.
These assignments were determined by the EPA TM. Refer to Table 5-2.

Sediment samples were collected at the following locations by WESTON (Appendix H):

•	Tributary to Tom Bush Creek and Melrose Mine (US001);

•	Unnamed tributary to Onion Creek and Van Stone Mine/Mill (US005);

•	Unnamed tributary to Onion Creek and Van Stone Mine/Mill (US006);

•	Unnamed tributary to Onion Creek and Van Stone Mine/Mill (US010);

•	Tributary to Black Rock Mine/Mill, Great Western Mine, and Last Chance Mine/Mill
approximately 1 mile upgradient and across Deep Creek Mine (US011);

•	Deep Creek South Fork approximately 7 miles upstream for Copper King Mine and
Sierra Zinc Mine/Mill (US012); and

•	Unnamed tributary to Deep Creek (US013).

5.2.2.2 Sample Results

Refer to T able 5-2 and 5-3 for E & E and WEST ON sediment sample results, respectively.

10:START-2\01020028\S759

5-5


-------
Table 5-1

SURFACE SOIL BACKGROUND SAMPLES
ANALYTICAL RESULTS SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS
PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS
STEVENS COUNTY, WASHINGTON

EPA Sample ID

01374163

01374188

01374189

01264251

01264275

01264276

01264279

01264280

01264281



CLP Inorganic ID

MJ0KH2

MJ0KK6

MJ0KK7

MJ0EZ6

MJ0F21

MJ0F22

MJ0F25

MJ0F26

MJ0F27



CLP Organic ID

NU

NU

NU

J0EZ6

NU

NU

NU

NU

NU

Highest

E&E Sample ID

NU

NU

NU

NU

NU

NU

NU

NU

NU

Background

Station Location

DTBK01SS

NSBK02SS

ANBK02SS

BK01SS

BK04SS

BK05SS

BK06SS

BK07SS

BK08SS

Concentration

Sample Depth (inches)

0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6



TAL Metals (mg/kg)

Aluminum

18100

4810

16400

14200

11100

13500

9330

10200

11500

18100

Antimony

1.9 JB
(12.7 SQL)

1.5 JB
(15.1 SQL)

2.8 JB
(13.1 SQL)

0.62 UJK

3.4 U

1.3 U

1.2 U

1.3 U

2.1 U

1.5 JB
(15.1 SQL)

Arsenic

68.2

2.6 JL

8.3 JL

6.9

7.3

2.4 JB
(2.5 SQL)

1.1 JB
(2.3 SQL)

4.9

7.1

68.2

Barium

168

194

470

265

548

273

93.4

108

109

548

Beryllium

0.89 JB
(1.06 SQL)

0.09 JB
(1.3 SQL)

0.31 JB
(1.1 SQL)

0.62 JB
(1.0 SQL)

0.38 JB
(1.4 SQL)

0.48 JB
(6.3 SQL)

0.32 JB
(1.2 SQL)

0.34 JB
(1.2 SQL)

0.45 JB
(1.1 SQL)

0.48 JB
(6.3 SQL)

Cadmium

4.8

1.3

3.4

0.06 U

7.8

0.47 JB
(6.3 SQL)

0.05 U

0.48 JB
(1.2 SQL)

0.61 JB
(1.1 SQL)

7.8

Calcium

5420

90500 JK

8210 JK

24300

4500

3290

1140 JB

91600

118000

118000

Chromium

13.9

17.6

16.5

29.0

20.9

16.1

5.6

13.8

13.0

29.0

Cobalt

14.7

2.9 JB
(12.6 SQL)

6.0 JB
(10.9 SQL)

10.1 JB
(10.3 SQL)

9.3 JB
(14.1 SQL)

8.6 JB
(63 SQL)

3.0 JB
(11.8 SQL)

6.9 JB
(12.2 SQL)

7.4 JB
(11.4 SQL)

8.6 JB
(63 SQL)

Copper

55.2

17.3

11.8

31.0 JL

47.4 JL

9.4 JL

7.5 JL

20.0 JL

22.1 JL

55.2

Iron

25200

7690

19602

24700

23400

17800

9490

18000

16800

25200

Lead

183

57.0

152

17.4

27.5

27.8

6.8

24.6

28.0

183

Magnesium

4110

3520

4160

11700

5470

4020

1540

17900

8060

17900

Manganese

1070

152

922

597

370

1370

151

354

1160

1370

Mercury

0.06 JB
(0.11 SQL)

0.06 U

0.05 U

0.05 U

0.07 U

0.06 U

0.05 U

0.06 U

0.06 U

0.06 JB
(0.11 SQL)

Nickel

16.1

8.0 JB
(10.1 SQL)

14.4

33.8

58.4

14.3

4.9 JB
(9.4 SQL)

21.1

16.4

58.4

Potassium

1300 JK

897 JB

11660

2930

2610

2770

1000 JB

1690

1900

11660

Selenium

1.5 JL

1.1 JB
(1.3 SQL)

0.74 U

0.70 U

2.4 U

0.86 U

0.79 U

0.83 U

0.78 U

1.5 JL

Silver

6.7

0.57 JB
(2.5 SQL)

1.3 JB
(2.2 SQL)

0.91 JB
(2.1 SQL)

1.6 JB
(2.8 SQL)

0.75 U

0.46 JB
(2.4 SQL)

0.63 JB
(2.4 SQL)

0.54 JB
(2.3 SQL)

6.7

Sodium

129 JB

255 JB

201 JB

216 JB

318 JB

369 JB

269 JB

377 JB

3308 JB

3308 JB

Thallium

1.1 U

1.3 U

1.1 U

0.80 UJK

1.4 U

1.3 U

1.2 U

1.2 U

1.2 U

1.4 U

Vanadium

41.9

13.8

27.4

51.2

50.8

22.9

18.2

26.4

16.6

51.2

Zinc

462

60.9

835

115 JH

502

110

30.1

81.8

75.5

835

5-6


-------
Table 5-1

SURFACE SOIL BACKGROUND SAMPLES
ANALYTICAL RESULTS SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS
PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS
STEVENS COUNTY, WASHINGTON

EPA Sample ID

01374163

01374188

01374189

01264251

01264275

01264276

01264279

01264280

01264281



CLP Inorganic ID

MJ0KH2

MJ0KK6

MJ0KK7

MJ0EZ6

MJ0F21

MJ0F22

MJ0F25

MJ0F26

MJ0F27



CLP Organic ID

NU

NU

NU

J0EZ6

NU

NU

NU

NU

NU

Highest

E&E Sample ID

NU

NU

NU

NU

NU

NU

NU

NU

NU

Background

Station Location

DTBK01SS

NSBK02SS

ANBK02SS

BK01SS

BK04SS

BK05SS

BK06SS

BK07SS

BK08SS

Concentration

Sample Depth (inches)

0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6



Pesticide/PCBs (Hg/kg)

4,4'-DDD

NU

NU

NU

3.5 U

NU

NU

NU

NU

NU

3.5 U

4,4'-DDE

NU

NU

NU

3.5 U

NU

NU

NU

NU

NU

3.5 U

4,4'-DDT

NU

NU

NU

3.5 U

NU

NU

NU

NU

NU

3.5 U

Aldrin

NU

NU

NU

1.8 U

NU

NU

NU

NU

NU

1.8 U

Alpha-BHC

NU

NU

NU

1.8 U

NU

NU

NU

NU

NU

1.8 U

Alpha-Chlordane

NU

NU

NU

1.8 U

NU

NU

NU

NU

NU

1.8 U

Aroclor-1016

NU

NU

NU

35 U

NU

NU

NU

NU

NU

35 U

Aroclor-1221

NU

NU

NU

71 U

NU

NU

NU

NU

NU

71 U

Aroclor-1232

NU

NU

NU

35 U

NU

NU

NU

NU

NU

35 U

Aroclor-1242

NU

NU

NU

35 U

NU

NU

NU

NU

NU

35 U

Aroclor-1248

NU

NU

NU

35 U

NU

NU

NU

NU

NU

35 U

Aroclor-1254

NU

NU

NU

35 U

NU

NU

NU

NU

NU

35 U

Aroclor-1260

NU

NU

NU

35 U

NU

NU

NU

NU

NU

35 U

Beta-BHC

NU

NU

NU

1.8 U

NU

NU

NU

NU

NU

1.8 U

Delta-BHC

NU

NU

NU

1.8 U

NU

NU

NU

NU

NU

1.8 U

Dieldrin

NU

NU

NU

3.5 U

NU

NU

NU

NU

NU

3.5 U

Endosulfan I

NU

NU

NU

1.8 U

NU

NU

NU

NU

NU

1.8 U

Endosulfan II

NU

NU

NU

3.5 U

NU

NU

NU

NU

NU

3.5 U

Endosulfan Sulfate

NU

NU

NU

3.5 U

NU

NU

NU

NU

NU

3.5 U

Endrin

NU

NU

NU

3.5 U

NU

NU

NU

NU

NU

3.5 U

Endrin Aldehyde

NU

NU

NU

3.5 U

NU

NU

NU

NU

NU

3.5 U

Endrin Ketone

NU

NU

NU

3.5 U

NU

NU

NU

NU

NU

3.5 U

Gamma-BHC(Lindane)

NU

NU

NU

1.8 U

NU

NU

NU

NU

NU

1.8 U

Gamma-Chlordane

NU

NU

NU

1.8 U

NU

NU

NU

NU

NU

1.8 U

Heptaehlor

NU

NU

NU

1.8 U

NU

NU

NU

NU

NU

1.8 U

Heptaehlor Epoxide

NU

NU

NU

1.8 U

NU

NU

NU

NU

NU

1.8 U

Methoxychlor

NU

NU

NU

18 U

NU

NU

NU

NU

NU

18 U

Toxaphene

NU

NU

NU

180 U

NU

NU

NU

NU

NU

180 U

5-7


-------
Note:	Bold type indicates sample concentration is above the detection limit.

Key:

AN	= Anderson/Calhoun Mine/Mill.

B	= The reported concentration is between the instrument detection limit and the contract required detection limit.

BK	= Background.

CLP	= Contract Laboratory Program.

DT	= Daisy Mine.

E & E	= Ecology and Environment, Inc.

EPA	= United States Environmental Protection Agency.

H	= High bias.

ID	= Identification.

J	= The analyte was positively identified. The associated numerical value is an estimate.

K	= Unknown bias.

L	= Low bias.

mg/kg	= Milligrams per kilogram.

fj.g/kg	= Micrograms per kilogram.

NS	= LeRoi/Northport Smelter.

NU	= Not utilized.

PCBs	= Polychlorinated biphenyls.

SQL	= Sample quantitation limit.

SS	= Surface soil.

TAL	= Target Analyte List.

U	= The analyte was not detected. The associated numerical value is the contract required detection limit.

5-8


-------






Table 5-2













SEDIMENT BACKGROUND SAMPLES











ANALYTICAL RESULTS SUMMARY











UPPER COLUMBIA RIVER MINES AND MILLS







PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS









STEVENS COUNTY, WASHINGTON







EPA Sample ID

01374104

01374111

01374108

01374109

01374114

01374187

01374181



CLP Inorganic ID

MJ0KC4

MJ0KD2

MJ0KC8

MJ0KC9

MJ0KD5

MJ0KK5

MJ0KJ5



CLP Organic ID

J0KC4

J0KD2

J0KC8

J0KC9

J0KD4

J0KJ3

J0KH3

Highest

E & E Sample ID

01090404

01030411

01090408

01090409

01090413

01090432

01090427

Background

Station Location

LBBK01SD

LBBK02SD

NABK01SD

NABK02SD

NPBK01SD

NSBK01SD

ANBK01SD

Concentration

Sample Depth (inches)

0-8

0-8

0-8

0-8

0-8

0-8

0-6



TAL Metals (mg/kg)

Aluminum

20200

3960

2080

13100

6980

2740

4070

20200

Antimony

1.3 JB

0.85 JB

0.71 U

0.86 U

1.0 JB

0.73 UJL

2.1 U

0.85 JB



(12.3 SQL)

(14.9 SQL)





(12.8 SQL)





(14.9 SQL)

Arsenic

12.1

2.8

1.1 UJK

4.3 JK

13.0

1.2 UJL

2.7 JB

13.0















(3.3 SQL)



Barium

450

63.0

34.0 JB

205

83.2

145

101

450







(48.8 SQL)











Beryllium

0.63 JB

0.10U

0.08 U

0.45 JB

0.23 JB

0.03 JB

0.27 U

0.45 JB



(1.0 SQL)





(1.49 SQL)

(1.07 SQL)

(1.3 SQL)



(1.49 SQL)

Cadmium

3.4

0.05 U

0.05 U

0.06 UJK

0.04 UJK

0.26 JB

1.2 JB

3.4













(1.3 SQL)

(1.7 SQL)



Calcium

39600

5740

2730

4940

56700

90700 JK

109000

109000

Chromium

32.3

6.8

5.4

24.7

22.0

7.6

9.9

32.3

Cobalt

11.9

4.7 JB

2.2 JB

10.5 JB

5.9 JB

1.7 JB

2.6 JB

11.9





(12.4 SQL)

(12.2 SQL)

(14.9 SQL)

(10.7 SQL)

(12.6 SQL)

(16.7 SQL)



Copper

69.3

6.5

2.8 JB

21.3 JK

47.6

6.8

6.9 JB

69.3







(6.1 SQL)







(8.3 SQL)



Iron

27900

10200

5590

27900

20300

6560

9200

27900

Lead

124

4.5

2.0

13.8

13.1

16.6

15.3 JK

124

Magnesium

33500

3720

1430

6940

4660

2600

3780

33500

Manganese

673

144

91.7

507

293

87.3

239

673

Mercury

0.10 JB

0.06 U

0.06 U

0.07 U

0.05 U

0.06 U

0.08 U

0.10 JB



(0.102 SQL)













(0.102 SQL)

Nickel

31.9

7.0 JB

3.6 JB

25.4

18.9

4.1 JB

10.8 JB

31.9





(9.9 SQL)

(9.8 SQL)





(10.1 SQL)

(13.4 SQL)



Potassium

3920 JK

603 JB

605 JB

2550 JK

899 JB

485 JB

410 JB

3920 JK

Selenium

0.70 UJL

0.84 UJL

0.83 UJL

1.0 U

0.72 UJL

0.86 U

1.4 JB

1.4 JB















(1.7 SQL)

(1.7 SQL)

Silver

1.5 JB

0.74 JB

0.30 U

1.8 JB

1.1 JB

0.15 U

1.0 U

1.8 JB



(2.04 SQL)

(2.5 SQL)



(3.0 SQL)

(2.1 SQL)





(3.0 SQL)

Sodium

597 JB

162 JB

151 JB

229 JB

155 JB

175 JB

557 JB

597 JB

Thallium

1.0 U

1.3 U

1.2 U

1.5 U

1.1 U

1.3 U

0.67 U

1.5 U

Vanadium

47.4

10.9 JB

8.9 JB

36.9

25.8

14.6

15.9 JB

47.4





(12.4 SQL)

(12.2 SQL)







(16.7 SQL)



Zinc

239

26.5

10.8

78.2

62.2

26.4

76.3

239

5-9


-------
Table 5-2

SEDIMENT BACKGROUND SAMPLES
ANALYTICAL RESULTS SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS
PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS
STEVENS COUNTY, WASHINGTON

EPA Sample ID

01374104

01374111

01374108

01374109

01374114

01374187

01374181



CLP Inorganic ID

MJ0KC4

MJ0KD2

MJ0KC8

MJ0KC9

MJ0KD5

MJ0KK5

MJ0KJ5



CLP Organic ID

J0KC4

J0KD2

J0KC8

J0KC9

J0KD4

J0KJ3

J0KH3

Highest

E & E Sample ID

01090404

01030411

01090408

01090409

01090413

01090432

01090427

Background

Station Location

LBBK01SD

LBBK02SD

NABK01SD

NABK02SD

NPBK01SD

NSBK01SD

ANBK01SD

Concentration

Sample Depth (inches)

0-8

0-8

0-8

0-8

0-8

0-8

0-6



Pesticide/PCBs (Hg/kg)

4,4'-DDD

3.5 U

4.0 U

3.8 U

5.3 U

3.6 U

4.2 U

5.1 U

5.3 U

4,4'-DDE

3.5 U

4.0 U

3.8 U

5.3 U

3.6 U

4.2 U

5.1 U

5.3 U

4,4'-DDT

3.5 U

4.0 U

3.8 U

5.3 U

3.6 U

4.2 U

5.1 U

5.3 U

Aldrin

1.8 U

2.1 U

2.0 U

2.7 U

1.9 U

2.2 U

2.6 U

2.7 U

Alpha-BHC

1.8 U

2.1 U

2.0 U

2.7 U

1.9 U

2.2 U

2.6 U

2.7 U

Alpha-Chlordane

1.8 U

2.1 U

2.0 U

2.7 U

1.9 U

2.2 U

2.6 U

2.7 U

Aroclor-1016

35 U

40 U

38 U

53 U

36 U

42 U

51 U

53 U

Aroclor-1221

71 U

82 U

78 U

110U

74 U

86 U

100 U

110U

Aroclor-1232

35 U

40 U

38 U

53 U

36 U

42 U

51 U

53 U

Aroclor-1242

35 U

40 U

38 U

53 U

36 U

42 U

51 U

53 U

Aroclor-1248

35 U

40 U

38 U

53 U

36 U

42 U

51 U

53 U

Aroclor-1254

35 U

40 U

38 U

53 U

36 U

42 U

51 U

53 U

Aroclor-1260

35 U

40 U

38 U

53 U

36 U

42 U

51 U

53 U

Beta-BHC

1.8 U

2.1 U

2.0 U

2.7 U

1.9 U

2.2 U

2.6 U

2.7 U

Delta-BHC

1.8 U

2.1 U

2.0 U

2.7 U

1.9 U

2.2 U

2.6 U

2.7 U

Dieldrin

3.5 U

4.0 U

3.8 U

5.3 U

3.6 U

4.2 U

5.1 U

5.3 U

Endosulfan I

1.8 U

2.1 U

2.0 U

2.7 U

1.9 U

2.2 U

2.6 U

2.7 U

Endosulfan II

3.5 U

4.0 U

3.8 U

5.3 U

3.6 U

4.2 U

5.1 U

5.3 U

Endosulfan Sulfate

3.5 U

4.0 U

3.8 U

5.3 U

3.6 U

4.2 U

5.1 U

5.3 U

Endrin

3.5 U

4.0 U

3.8 U

5.3 U

3.6 U

4.2 U

5.1 U

5.3 U

Endrin Aldehyde

3.5 U

4.0 U

3.8 U

5.3 U

3.6 U

4.2 U

5.1 U

5.3 U

Endrin Ketone

4.0

4.0 U

3.8 U

5.3 U

3.6 U

4.2 U

5.1 U

4.0

Gamma-BHC(Lindane)

1.8 U

2.1 U

2.0 U

2.7 U

1.9 U

2.2 U

2.6 U

2.7 U

Gamma-Chlordane

1.8 U

2.1 U

2.0 U

2.7 U

1.9 U

2.2 U

2.6 U

2.7 U

Heptachlor

2.0 U

2.1 U

2.0 U

2.7 U

1.9 U

2.2 U

2.6 U

2.7 U

Heptachlor Epoxide

1.8 U

2.1 U

2.0 U

2.7 U

1.9 U

2.2 U

2.6 U

2.7 U

Methoxychlor

18 U

21 U

20 U

27 U

19 U

22 U

26 U

27 U

Toxaphene

180 U

210 U

200 U

270 U

190 U

220 U

260 U

270 U

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Note:	Bold type indicates sample concentration is above the detection limit.

Key:

AN	= Anderson/Calhoun Mine/Mill.

B	= The reported concentration is between the instrument detection limit and the contract required detection limit.

BK	= Background.

CLP	= Contract Laboratory Program.

E & E	= Ecology and Environment, Inc.

EPA	= United States Environmental Protection Agency.

ID	= Identification.

J	= The analyte was positively identified. The associated numerical value is an estimate.

K	= Unknown bias.

KR	= Kettle River.

L	= Low bias.

LB	= L-Bar.

mg/kg	= Milligrams per kilogram.

(xg/kg	= Micrograms per kilogram.

NA	= Northwest Alloys.

NP	= Napoleon Mine.

NS	= Northport Smelter.

NU	= Not utilized.

PCBs	= Polychlorinated biphenyls.

SD	= Sediment.

SQL	= Sample quantitation limit.

TAL	= Target analyte list.

U	= The analyte was not detected. The associated numerical value is the contract required detection limit.

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Table 5-3





















ROY F. WESTON, INC. BACKGROUND SEDIMENT SAMPLES
ANALYTICAL RESULTS SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS
PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS
STEVENS COUNTY, WASHINGTON









EPA Sample ID

01264068

01264070

01264073

01264075

01264050

01264051

01264054

01264055

01264053

01264059

01264062

01264060

01264058

CLP Inorganic ID

MJ0BQ1

MJ0BQ3

MJ0BQ5

MJ0BQ7

MJ0BN3

MJ0BN4

MJ0BN7

MJ0BN8

MJ0BN6

MJ0BP2

MJ0BP5

MJ0BP3

MJ0BP1

CLP Organic ID

JX827

JX829

JX831

JX832

JX810

JX811

JX814

JX815

JX813

JX819

JX822

JX820

JX818

WESTON Sample ID

BK-150-SD

BK-152-SD

BK-153-SD

BK-155-SD

BK-130-SD

BK-131-SD

BK-134-SD

BK-135-SD

BK-133-SD

BK-139-SD

BK-142-SD

BK-140-SD

BK-138-SD

Station Location

US001

US002

US003

US004

US005

US006

US007

US008

US009

US010

US011

US012

US013

Sample Depth (inches)

0-3

0-2

0-4

0-2

0-3

0-3

0-4

0-6

0-8

0-4

0-10

0-1

0-4

TAL Metals (mg/kg)

Arsenic

6.7

1.5 JB

0.47 U

2.6

1.9 JB

1.3 JB

4.5

7

1.5 JB

0.51 U

2.4 UJK

1.2 JB

0.89 JB

Cadmium

46.2 JK

0.35 JB

0.05 UJK

0.38 JB

0.06 JB

0.05 UJK

0.28 JB

3.3 JK

0.05 UJK

0.05 UJK

1.7 JB

0.05 UJK

0.05 UJK

Lead

20.3

6.4

5

14.8

2.7

8

19.2

139

8.4

5.4

16.1 JK

3.3

6.4

Mercury

0.08 U

0.08 U

0.06 U

0.06 U

0.07 U

0.06 U

0.07 U

0.07 U

0.06 U

0.06 U

R

0.06 U

0.06 U

Zinc

1880

60

49

54.7

18.3

20

135

901

80.6

32.3

42.0 JK

18.3

41.2

Note:	Bold type indicates sample concentration is above the detection limit.

Key:

B	= Detected inorganic concentration is below the method reporting limit/Contract Required Detection Limit (CRDL) but is above the instrument detection limit.

BK	= Background.

CLP	= Contract Laboratory Program.

EPA	= United States Environmental Protection Agency.

ID	= Identification.

J	= The analyte was positively identified. The associated numerical value is an estimate.

K	= Unknown bias.

mg/kg	= Milligrams per kilogram.

R	= The sample results are rejected (analyte may or may not be present) due to gross deficiencies in quality control criteria. Any reported value is unusable. Resampling and/or reanalysis is necessary for verification.

SD	= Sediment.

TAL	= Target Analyte List.

U	= The analyte was not detected. The associated numerical value is the contract required detection limit.

WESTON =RoyF. Weston, Inc.

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6. MINES AND MILLS, LOCATIONS /DESCRIPTIONS, START-2 VISITS

This section identifies the mines and mills visited by EPA and the ST ART -2 personnel as part of
this field event. The mines and mills are presented in order of location relative to the upper Columbia
River and its tributaries, beginning near Inchelium, Washington, continuing upstream along the river to
the U.S.-Canada border. Mine and mill location, historical information, description, and ownership
information are presented for each mine and mill. This section also presents field observations for the
START-2 contractor and/or EPA personnel during the visits (Figures 6-1 through 6-42). For the
18 mines and mills where sampling was conducted, analytical results are presented in this section.

6.1 DAISY MINE
6.1.1 Mine Location

Latitude:

Longitude:

Legal Description:

CERCLISID:

County:

Contact:

48° 22' 45.80"N
118° 4'42.60"W

SW% Section 7, Township 33N, Range 38E

WAN001002371

Stevens

Martha J. Kernohan, CPL
Boise Cascade Corp.

Mineral Resources
1111 West Jefferson St.

Boise, Idaho 83728-0001
(208)384-7529

6.1.2 Historical Information

The Daisy Mine is a former copper, lead, gold, and silver mine (Derkey et al. 1990). The mine is
located 25 miles west of Addy near the summit on Huckleberry Mountain, Washington (Battien 1998).
The mine also is reported to have produced between 1916 and 1935 (Derkey et al. 1990). It is reported
that the presence of arsenic prompted the closure of the mine (Battien 1998). The mine claim was
located in 1887, but with almost impassable roads and lack of transportation the claim was not developed

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until 1905 when J.J. Browne and W.E. Seelye of Spokane took over the property (Battien 1998).
Historical ownership from this time to the present is unknown.

6.1.3	Mine Description/Features

The Daisy mine is located on the west slope of the Huckleberry Range in the Kettle Falls mining
district. Alternate names are Daisy-Tempest and Silver Mountain. The mine consisted of 16 claims and
additional property encompassing approximately 580 acres. The mine deposit consists of at least
four quartz veins from a few inches to 12 feet in width cut by a series of argillites and quartzites intruded
by diorite. The mine is developed by four adits and a shaft. (Huntting 1956)

6.1.4	START-2 Mine Visit

On September 10, 2001, the START-2 visited the Daisy Mine and conducted a visual inspection
of the property and surrounding area (Figure 6-1; Appendix A, Photos 43-1 through 43-21; Appendix B,
Team 2 Phase 2, Pages 2 through 7). The mine area contained a tailings pile measuring 150 feet at the
base, 30 feet in height with a slope of approximately 35%, and a depth of approximately 45 feet. A
storage shed was located north of the tailings pile measuring 10 feet by 10 feet. East of the tailings pile
and dirt road were an old office building, an outhouse, and a shed. North of the tailings pile and storage
shed were the remnants of a building or shed. West of the remnants a shaft was located measuring
10 feet by 10 feet by unknown depth. A wet area originating from the shaft extended south
approximately 25 feet. A depression south of the wet area was noted where potential pooling of water
from the shaft would occur; continuing on to flow into a ditch (PPE 1), through a culvert, and into Magee
Creek located southwest of the site. The overland distance from the shaft to the creek is approximately
70 feet. Access to the mine is unrestricted. Logging occurs in the vicinity of the mine. No livestock
grazing was noted in the vicinity of the mine.

6.1.5	Sampling Locations

Sample locations are depicted in Figure 6-2. Three tailings samples (DTTP01SS, DTTP02SS,
and DTTP03SS) were collected from the tailings pile adjacent to Daisy Mine Road. The samples were
collected within the overland surface water drainage routes identified by the START -2. The samples
were collected to determine potential contamination associated with this source. The samples appeared
to consist of silty sand. No odor or staining was noted during sample collection.

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One surface water sample (DTAD01SW) was collected from the shaft. The sample was
collected within the overland surface water drainage route identified by the START-2. The sample was
collected to determine potential contamination associated with this source. The sample was clear. No
odor or staining was noted during sample collection.

A sediment sample (DTPP01SD) was collected at PPE 1 in the ditch near the culvert on the
southern portion of the mine area.

6.1.6 Analytical Results

6.1.6.1	Surface Soil Sample Results

The START -2 collected three surface soil samples from tailings for TAL metals analyses.
Arsenic was detected at a significant concentration of 233 milligrams per kilogram (mg/kg). Significant
concentrations ranged from 0.42 mg/kg to 2.9 mg/kg for mercury. Refer to Table 6-1 for complete data
results.

6.1.6.2	Surface Water Sample Results

The START-2 collected one surface water sample from the shaft water for TAL metals analysis.
Analytes detected in DTAD01SW include arsenic (95.3 micrograms per liter |/ig/L|). cadmium
(7.1 /ig/L), lead (5.2 /ig/L), and zinc (829 /ig/L). Copper and mercury were not detected.

6.1.6.3	Sediment Sample Results

The START-2 collected one sediment sample from PPE 1 for TAL metals, pesticide/PCBs, and
TOC analyses. No elevated concentrations were detected. Refer to Table 6-2 for complete data results.

6.2 L-B AR/N O RIHW ES T MAGNESITE
6.2.1 Plant Location

Latitude:

Longitude:

Legal Description:

48° 15' 21.94"N

County:

CERCLISID:

117° 43' 6.25"W

Section 23, Township 32N, Range 40E

WAD097824577

Stevens

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Contact:	Ozzie Wilkinson

Northwest Alloys, Inc.

P.O. Box 115

1560 A Marble Valley Road
Addy, Washington 99101-0115
(509) 935-3369

Northwest Magnesite Contact: William and Richard Brauner (magnesite residue pile only)

6.2.2 Historical Information

L-Bar/Northwest Magnesite is located approximately two miles south of Chewelah, Washington
on the west side of U.S. Highway 395, and lies on the south bank of the Colville River (CH2MHill
2001a, Ecology 2001). Northwest Magnesite is a former magnesite plant created in 1916 by American
Mineral Production Company (Battien 1998). Shipments of crude magnesite from Stevens County
averaged 700 tons daily (Battien 1998). The plant was closed down in 1968 (Battien 1998).

L-Bar/Northwest Magnesite includes an industrial area covering approximately 80 acres and an
adjoining 17-acre agricultural field located between the industrial area and the Colville River in the
Colville River valley (Ecology 2001). An above-grade magnesite residue pile, approximately 30 feet
deep and 17 acres in area, is found to the west (Ecology 2001). Two ditches, the Main Ditch and the
West Ditch, run through the site. Both ditches previously discharged into the Colville River.

L-Bar/Northwest Magnesite and the adjacent parcel to the south have been associated with
magnesium processing since the 1930s. Large quantities of magnesite ore were processed and flue dust
and other materials were stockpiled on site until 1967. In the mid-1970s, the facility was converted to
recover magnesium from a magnesium processing byproduct commonly referred to as flux bar. Flux bar
was supplied primarily by Northwest Alloys, Inc., from their magnesium plant near Addy, Washington,
and sold to the site owners. The magnesium recovery facility was owned and operated by Phoenix
Resources Recovery, Inc., from 1977 to 1986. L-Bar Products, Inc., operated the facility from 1986 to
1991 when it closed down due to insolvency (CH2MHill 2001a). More than 100,000 tons of materials
(under a covered pile, in buildings, and on top of the magnesite pile) remained at the site after closure
(Ecology 2001).

Ownership of a majority of the L-Bar property was transferred from the L-Bar Bankruptcy
Trustee to Northwest Alloys, Inc., in May 2000. The transfer included all former L-Bar Products, Inc.,
real estate except those portions lying under the south half of the magnesite residue pile, which were
retained by the L-Bar trustee, and later transferred to Richard and Maxine Brauner. The north half of the
magnesite pile and the underlying property is owned by William Brauner. Easements are in place in the

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existing deeds that grant Northwest Alloys, Inc., and its agents access to the magnesite pile for purposes
of groundwater monitoring and future remedial actions, if needed. (CH2MHill 2001a)

Since 1995, discharge from the Main Ditch has stopped as a result of actions taken by Northwest
Alloys, Inc. In response to an Emergency Enforcement Order issued by Ecology in 1994, Northwest
Alloys, Inc., constructed a water retention structure that eliminated direct discharge of Main Ditch
surface water to the Colville River. (Ecology 2001)

In 1995, Ecology and Northwest Alloys, Inc., entered into an Agreed Order to conduct interim
actions, a remedial investigation (RI), and a feasibility study. Interim actions conducted included:
management of stored waters in the evaporation pond (through land application in the North Field during
the summer months) and the removal and disposal of approximately 65,000 tons of flux bar and flux bar
residue from atop and around the magnesite residue pile. (Ecology 2001)

Findings in the RI completed in 1998 show that flux bar and flux bar residue materials are the
primary source of ammonia, chloride, and total dissolved solids detected in the shallow groundwater,
soils, and in surface water in two on-site ditches. The shallow groundwater is not a drinking water
aquifer; however, it discharges to the Colville River which has been categorized by Ecology as a Class A
(excellent) surface water body. The West Ditch also discharges to the Colville River. River sampling
showed a slight increase in ammonia and chloride concentrations when comparing upstream to
downstream results. However, Class A surface water criteria have not been exceeded in the river.

(Ecology 2001)

Ecology prepared a draft Cleanup Action Plan that became final in June 2000. The cleanup
actions selected by Ecology are source removal, monitoring, and institutional controls. With source
removal, contaminants in groundwater, surface water, and soils are expected to be reduced over time
through natural attenuation. (Ecology 2001)

6.2.3 Plant Description/Features

The magnesite pile is believed to consist predominantly of magnesium carbonate derived from
Finch, Red Marble, and Keystone quarries several miles west of the site. Processed (washed and
crushed) magnesite ore was delivered to the Northwest Magnesite reduction facility via a 5-mile-long
aerial tramway. Electrostatic precipitate (ESP) dust from the site and perhaps other materials were
hydraulically placed into portions of the existing magnesite stockpile. A Washington State Department
of T ransportation aerial photo of the site in July 1966 shows the placement of the ESP dust by flume
discharge from the plant into a dike retaining pond system in the pile area. (CH2MHill 1998)

10:START-2\01020028\S759

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In addition to magnesite processing, a fireproof fiber-board product called Thermax was
manufactured at the site before L-Bar operations commenced. The Thermax fiber boards consisted of
shredded Cottonwood impregnated with magnesite. Little is known about the operation; however, many
of the older L-Bar buildings are constructed of Thermax. Thermax debris is found as a waste material
mixed into the magnesite stockpile. (CH2MHill 1998)

Past operating practices and inadequate storage of flux bar and flux bar residue have resulted in
elevated levels of mostly chloride and ammonia in shallow groundwater and surface water. Most of the
materials remaining on the plant have continued to leach salts and ammonia into shallow groundwater
and surface water in two ditches. (Ecology 2001)

To date, 140,000 to 150,000 tons of flux bar related material has been removed from the
property. There is an estimated 30,000 to 40,000 tons of material still is present on site. Removal of this
material and backfilling are tasked to be complete by 2002. These activities are being conducted under
an Agreed Order with Ecology (Wilkinson 2002).

Results from the Draft Interim Action Materials Characterization Report (1996) produced by
Cascade Earth Sciences (CES) for Northwest Alloys Inc. showed the magnesite residue pile contained
elevated levels of some trace metal and semi-metallic constituents including arsenic, boron, cadmium,
copper, selenium, and zinc. Concentrations of these constituents in the magnesite residue pile were
elevated in comparison to both regional background soil levels for eastern Washington and to levels
measured in L-Bar flux bar residue. (CH2MHill 1998)

Sediment samples were collected during Phase I of the RI from six locations: three in the Main
Ditch, two in the West Ditch, and one from the Logan Road ditch south of the property. Review of trace
metals analytical results demonstrated that barium, manganese, and selenium concentrations in the Main
Ditch sediment samples exceeded the concentrations detected in the background sample collected from
the Logan Road ditch south of the property. Trace metals results from the West Ditch samples were
similar to Main Ditch samples in that background concentrations were exceeded for barium, manganese,
and selenium. Background concentrations of arsenic and copper also were exceeded. Concentrations of
these metals were less than 2 times background levels except for selenium, which was approximately
seven times background. (CH2MHill 1998)

6.2.4 START-2 Visit

On September 10 and 11, 2001, the ST ART-2 visited L-Bar/Northwest Magnesite and conducted
a visual inspection of the property and surrounding area (Figure 6-3; Appendix A, Photos 40-1 through

10:START-2\01020028\S759

6-6


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40-22 and 41-8 through 41-11; Appendix B, Team 1 Phase 2, Pages 3 through 7, 9 and 10). The property
consisted of six buildings including primary crushing and storage, maintenance and repair shop,
magnesium recovery and storage (the cooling beds area was demolished in 1994), secondary crushing
and butler storage, office and laboratory, and storage bunkers. Six exterior product storage silos are
south of the storage bunkers. The buildings contain process equipment and flux bar residue products in
various stages of development and storage. The complete list of materials and the building plans
showing material locations can be found in the Draft Interim Action Materials Characterization Report
produced by CESin 1996. (CH2MHill 1998)

Other significant features include three lined ponds (the evaporation, holding, and sanitary
lagoon) and the covered flux bar residue pile north of the buildings. The area around the buildings is
paved with asphalt to control dust and divert surface water runoff to collection ditches for discharge to
the holding pond. If the holding pond becomes full, it is equipped with an overflow that allows discharge
to the Main Ditch. Storm water contained in the holding pond is being discharged to the Colville River
under an Ecology-approved storm water management permit (PPE 2). Underground and overhead utility
lines are distributed throughout the site. No registered underground storage tanks are present on the
property. (CH2MHill 1998)

No logging occurs in the vicinity of the plant. Farmland is located adjacent to the property.

6.2.5	Sampling Locations

Sample locations are depicted in Figure 6-4. Two sediment samples were collected in the West
Ditch. Sediment sample LBDT03SD was collected from PPE 1 and sediment sample LBDT02SD was
collected from PPE 2.

6.2.6	Analytical Results
6.2.6.1 Sediment Sample Results

The START-2 collected one sediment sample from PPE 1 (LBDT03SD) and one sediment
sample from PPE 2 (LBDT02SD) for TAL metals, pesticide/PCBs, and TOC analyses. No analytes were
detected at elevated concentrations in these samples. Refer to Table 6-3 for data results.

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6.3 NORTHWEST ALLOYS

6.3.1 Plant Location

Latitude:

Longitude:

Legal Description:

48° 21'26.00"N

117° 50' 54.00"W

Section 14, Township 33N, Range 39E

CERCLISID:

WAD094626868

County:
Contact:

Ozzie Wilkinson
Northwest Alloys, Inc.

Stevens

P.O. Box 115

1560 A Marble Valley Road
Addy, Washington 99101-0115
(509) 935-3369

6.3.2	Historical Information

Northwest Alloys is a former magnesium plant in Addy, Washington, covering approximately
240 acres (Northwest Alloys, Inc. 1992). The plant is located in Colville Valley which is drained by the
Colville River. The Colville Valley is bordered by rugged, mountainous terrain. Access to the plant is
restricted. In the early 1970s, Northwest Alloys, Inc., a wholly owned subsidiary of the Aluminum
Company of America decided to develop a plant for the production of ferrosilicon, magnesium, and
silicon in Addy, Washington (DNR 1983). Construction began in 1973 and production began in 1976
(DNR 1983). Plant operations were discontinued in September 2001 due to economic considerations
affecting domestic magnesium production.

6.3.3	Plant Description/Features

The plant produced magnesium and ferrosilicon partially from raw material quarried on the
property. Waste products generated were either recycled, sold as product or thread, or buried on site.
None of the wastes were regarded as hazardous under the Resource Conservation and Recovery Act
(RCRA) but were classified as regulated wastes under Ecology Dangerous Waste Regulations.
(E & E 1988)

The magnesium was sold to the aluminum industry as an alloying ingredient and to the steel
industry as a desulphurization agent. Ferrosilicon was used internally as a reducing agent in magnesium
production. Northwest Alloys, Inc., employed the Magnetherm (Aluminathermic) process which
depended upon the reaction between calcined dolomite (a mixture of calcium dioxide and magnesium

10:START-2\01020028\S759

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oxide) and the silicon content of ferrosilicon. The reaction took place in a liquid slag formed from the
reaction of the calcium and silicon byproducts. Alumina was needed in the process to reduce the melting
point of the slag and to depress unwanted secondary reactions. Aluminum was used for the same purpose
and was also a supplemental reductant. (E & E 1988)

The major raw material, dolomitic limestone, was quarried from a deposit adjacent to the plant.
A second raw material, pure aluminum shot, aluminum skim, or alumina, was brought in by rail.
Ferrosilicon, the third material used, was produced on site from locally mined quartzite or was brought
in. (E & E 1988)

Quarried dolomite was crushed, washed, screened, and stockpiled. Because water and carbon
dioxide in the dolomite will reduce magnesium production efficiency, it was necessary to calcine the
dolomite to reduce the water and carbon dioxide to a minimum. The calcining operation was carried out
in a rotary kiln in which the dolomite traveled counter-current to hot combustion gases in the kiln.
(E & E 1988)

The calcined dolomite, plus ferrosilicon and aluminum or alumina, was fed from bins to the
batch-operated magnesium reduction furnaces. The furnaces were operated under vacuum and were
totally enclosed. The magnesium, produced as a vapor, rose from the furnace into a condenser and was
collected and solidified in crucibles. (E & E 1988)

The used condenser-crucible assembly was taken to a cleaning area and disassembled. The
condenser and connecting pipes were cleaned and prepared for reuse. The crucible was removed and
transported to the metal service area where the magnesium was remelted, refined, cast into ingots, and
shipped out by rail or truck. (E & E 1988)

In 1979, Northwest Alloys, Inc., began to fill the excavated south quarry with waste products of
which 10% were regulated wastes. The regulated wastes were sandwiched between layers of
low-permeability slag in the landfill. The south landfill/quarry was estimated to be filled to capacity by
1990, at which time the west quarry would be utilized for waste disposal. Prior to 1980, Northwest
Alloys, Inc., disposed of their regulated wastes on the ground at the south portion of the facility.
(E & E 1988)

The plant was designed as a zero-discharge facility. All cooling water was recirculated and
perimeter dikes contained and treated all surface water runoff (E & E 1988).

During the late 1970s, and into the 1980s, various non-hazardous production byproducts from the
plant operations were placed into three shallow, soil-lined repositories in a portion of the site referred to
as the Northwest (NW) Quadrant area. The three repositories include the Sealed Pit, Casting Residue

10:START-2\01020028\S759

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Mound (CRM), and North Waste Area. Some of the solid waste materials that were placed into the
repositories were chloride and ammonia bearing, and/or displayed an elevated pH. Since 1995,

Northwest Alloys, Inc., has conducted a series of characterization and monitoring activities within and
around these repositories under the Model Toxics Cleanup Authority, Voluntary Cleanup Program, as
administered by Ecology's Industrial Section. A focused hydrogeologic investigation in 1995 identified
chloride and ammonia in shallow groundwater immediately adjacent to the waste repositories in the NW
Quadrant area and adjacent to the wastewater storage ponds at the southern end of the plant. In 1999,
Northwest Alloys, Inc., began the excavation and removal of approximately 25,000 tons of waste
material as part of its ongoing voluntary cleanup actions. The wastes were shipped off-site to a
non-hazardous subtitle D landfill in Roosevelt, Washington. In 2000, Northwest Alloys, Inc., installed a
RCRA-compliant liner system as an engineering upgrade for a previously unlined stormwater storage
pond. The contents of the two wastewater storage ponds have been transferred to the lined pond. The
two wastewater ponds are now empty and available for storage of stormwater. Also in 2000, removal
actions at the Sealed Pit were completed with soil removal conducted along Marble Valley Road.
(Northwest Alloys, Inc. 2001)

In 2001, excavation and removal of material from the CRM was conducted and characterization
sampling of the North Waste Area was performed (Northwest Alloys, Inc. 2001).

Removal of waste materials from the North Waste Area is ongoing. Other activities planned for
2002 include additional soil removal at the CRM and backfilling of the CRM and Sealed Pit areas.

Closure of the RCRA Part B Landfill located on the property is also underway. (Wilkinson 2002)

T errain is flat in the southern half of the site and hilly in the northern half. Mining and filling
operations have changed the topography of the site over its operational history. Artificial fill covers
much of the NW Quadrant. Native grade is observed along the western margins of the plant, along
Marble Valley Road. Presently, ground elevations in the NW Quadrant of the plant site range from about
1650 to 1665 feet above mean sea level (msl). (CH2MHill 2001b)

Groundwater contamination by inorganic compounds has been documented below an on-site
quarry used for disposal of wastes. The contamination appears limited in extent and no present-day
migration of contaminants to drinking water aquifers appears likely. (E & E 1988) Analytical results of
routine monitoring conducted at the City of Addy municipal water supply wells is provided in
Appendix I.

Two surface water features, the Colville River and Stensgar Creek, are present within the
immediate vicinity of the Northwest Alloys' Addy plant. The Colville River is located about 500 feet

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east of the plant site and Stensgar Creek is located about 1,000 feet south of the plant. Surface water
runoff from the NW Quadrant area generally is to the west and south. (CH2MHill 2001b)

6.3.4	START-2 Visit

On September 10,2001, the ST ART-2 visited Northwest Alloys and conducted a visual
inspection of the property and surrounding area (Figure 6-5; Appendix A, Photos 40-23 through 41-7;
Appendix B, Team 1 Phase 2, Pages 7 through 9). The current facility layout and surrounding areas are
shown in Figure 6-5. The plant is contained within gates and hillsides. There is no overland flow from
the site directly into the Colville River due to topography and surface water runoff controls. A potential
overland flow exists via a series of road side ditches on the southern portion of the plant. The overland
flow potentially flows through these ditches to a ditch leading from the road on the south end of the
property south towards Stensgar Creek (PPE 1). Stensgar Creek, located south of the plant, contains
brown trout. Stensgar Creek Feeds into the Colville River. The terrain is flat in the southern portion of
the property and hilly in the northern portion.

6.3.5	Sampling Locations

Sample locations are depicted in Figure 6-6. NADT01SD was collected in the ditch
approximately 25 feet north of the confluence of the ditch and Stensgar Creek (PPE 1).

6.3.6	Analytical Results
6.3.6.1 Sediment Sample Results

The START-2 collected one sediment sample from PPE 1 (NAD01SD) for TAL metals analyses.
Elevated concentrations of arsenic (4.9 mg/kg), copper (18.7 mg/kg), lead (7.5 mg/kg), and zinc
(47.9 mg/kg) were detected in this sample. Refer to Table 6-4 for complete data results.

6.4 NAPO LEON MINE/MILL

6.4.1 Mine/Mill Location

Latitude:

Longitude:

Legal Description:

48° 44' 12.10"N
118° 06' 4.32"W

NW% Section 3, Township 37N, Range 37E

CERCLISID:

WAN001002391
Stevens

County:

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Contact:	Martha J. Kernohan, CPL

Boise Cascade Corp.

Mineral Resources
1111 West Jefferson St.

Boise, Idaho 83728-0001
(208)384-7529

6.4.2	Historical Information

The Napoleon Mine/Mill is a former copper, gold, and iron mine/mill in the Northport mining
district, Washington (Derkey et al. 1990). The mine is reported to have produced in 1907-1910,
1913-1917, and 1938-1955 (Derkey et al. 1990). A mill was built in 1910 to extract gold (Battien 1998).
The mine/mill was owned in 1915 by British Columbia Copper Company (Battien 1998). Historical
ownership information from the time the facility began operation to the present is unknown.

6.4.3	Mine/Mill Description/Features

The Napoleon Mine/Mill consists of two claims. The exposed formation is part of the Mission
argillite. The ore minerals are magnetite, limonite, pyrite, and pyrrhotite. Occasional small quantities of
chalcopyrite are present. The ores were mined to a considerable extent and shipped to the smelter at
Greenwood, British Columbia, where it was used as a flux. The property is developed by three main
tunnels and a large glory hole. The highest workings in the glory hole are at an elevation of 2,650 feet.
These workings are all connected with stopes and raises. A one-mile aerial tramway was built from the
mine to the bunkers at the railroad along Kettle River. (Weaver 1920)

6.4.4	START-2 Mine/Mill Visit

On September 12, 2001, the START-2 visited the Napoleon Mine/Mill and conducted a visual
inspection of the property and surrounding area (Figure 6-7; Appendix A, Photos 41-12 through 41-17;
Appendix B, Team 1 Phase 2, Pages 11 and 12). The mine/mill area consisted of an adit measuring 5 feet
by 4 feet located south of the dirt road entrance. There was no evidence of tailings or waste rock present
on the property. The adit discharge flowed across the dirt road, down the hillside approximately
120 feet, before entering an intermittent creek (PPE 1). Iron staining was present on the soil and the dirt
road. There was no adit discharge at the time of the visit. Access to the mine/mill was restricted by a
locked gate. No logging or livestock grazing was noted in the vicinity of the property.

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6.4.5 Sampling Locations

Sample locations are depicted in Figure 6-8. One surface water sample (NPAD01SW) was
collected from the adit. The sample was collected within the overland surface water drainage route
identified by the START-2. The sample was collected to determine potential contamination associated
with this source. The sample was clear. No odor was noted during sample collection. Iron staining was
present on the soil and the dirt road identifying the drainage pathway to the intermittent creek.

PPE 1 (NPPP01SD) was collected at the confluence of the adit discharge and the intermittent

creek.

6.4.6 Analytical Results

6.4.6.1 Surface Water Sample Results

Analytes detected in NPAD01SW include lead (11.3 /ig/L) and zinc (937 /ig/L).

6.4.6.2 Sediment Sample Results

The START-2 collected one sediment sample from PPE 1 (NPPP01SD) for TAL metals,
pesticide/PCBs, and T OC analyses. Copper was detected in this sample at an elevated concentration of
207 mg/kg. Refer to Table 6-5 for complete data results.

6.5

FIRS TIHO UGHT MINE

6.5.1 Mine Location

Latitude:

Longitude:

Legal Description:

CERCLISID:

Contact:

48° 53'2.04"N
118° 09' 32"W

Section 18, Township 39N, Range 37E

WAN0010023 74

Bill Campbell
Western Continental, Inc.

P.O. Box 14006
Spokane, Washington 99214

6.5.2 Historical Information and Mine Description/Features

The First Thought Mine is a former gold and silver mine located in the Orient district,
Washington. The mine was located in 1896 and was an almost continuous shipper from 1904 to 1910. It
is estimated that the mine produced slightly over 40,000 tons of ore. The chief values of the ore were in

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gold. The property is developed by three tunnels driven into the mineralized zone, a shaft, and drifts.
The mineralized portion contains finely disseminated crystals of pyrite which carry the gold values.
(Weaver 1920)

6.5.3 START-2 Mine Visit

On September 12, 2001, the START-2 visited the First Thought Mine and conducted a visual
inspection of the property and surrounding area (Appendix B, Team 1 Phase 2, Pages 12 through 14 ).
The area consisted of waste rock piles, a dilapidated house, and a possible shaft with an opening
measuring approximately 5 feet in diameter (Appendix A, Photos 41-18, 41-20, 41-21). The shaft and
dilapidated house were located on the east side of the property. Waste rock piles were located
approximately 200 feet west of the shaft. A road and cow pasture were located on the south side of the
property. A creek flows through the pasture. The ST ART -2 observed boxes containing samples of soil
borings. Some of the boxes were marked either Shell, F.T., PF, BC, or Boise Cascade (Appendix A,
Photo 41-19). The START-2 did not observe any overland drainage routes from the waste rock piles to
surface water. Access to the mine was unrestricted. No residents or potential receptors were observed
on the property. No samples were collected at the First Thought Mine.

6.6 LOTTIE MINE
6.6.1 Mine Location

Latitude:

Longitude:

Legal Description:

CERCLISID:

County:

Contact:

48° 51' 53.28"N
118° 01' 15.24"W

Section 19, Township 39N, Range 38E

WAN0010023 84

Stevens

United States Department of the Interior
Bureau of Land Management
Spokane District Office
1103 N. Fancher

Spokane, Washington 99212-1275
(509) 536-1200

6.6.2 Historical Information and Mine Description/Features

The Lottie Mine is a former copper, gold, and silver mine located in the Fifteen Mile Creek
district, Washington. The mine was located in 1898 and was developed by a 50-foot shaft, open cut

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work, and trenching for a distance of over 500 feet along the course of the vein. The ore minerals are
chalcopyrite, pyrite, and pyrrhotite which are said to assay in copper, gold, and silver. About 50 tons of
ore are said to have been mined. (Weaver 1920)

6.6.3 START-2 Mine Visit

On June 18, 2001, the START -2 visited the Lottie Mine and conducted a visual inspection of the
property and surrounding area (Appendix B, Team 2 Phase 1, Pages 2 and 13). The START-2 observed
two log structures and a waste rock pile near these structures (Appendix A, Photos 21-6, 21-7 and 21-8).
The waste rock pile was mixed with soil and measured approximately 30 feet by 15 feet by 3 feet deep
(Appendix A, Photo 21-5).

An upper road was located approximately 500 feet northwest from the log structures. The upper
area consisted of two waste rock piles. One waste rock pile measured an estimated 60 feet by 30 feet by
10 feet deep (Appendix A, Photo 29-18). The other waste rock pile measured approximately 15 feet by
15 feet by 4 feet deep. The START-2 did not observe any overland drainage routes from the waste rock
piles to surface water. Access to the mine was unrestricted. No residents or potential receptors were
observed on the property. No samples were collected at the Lottie Mine.

6.7 HOMESTAKENO. 1 MINE
6.7.1 Mine Location

Latitude:

Longitude:

Legal Description:
CERCLISID:

County:
Contact:

48° 52' 06.96"N
118° 01' 18.84"W

Section 19, Township 39N, Range 38E

WAN001002378

Stevens

United States Department of the Interior
Bureau of Land Management
Spokane District Office
1103 N. Fancher

Spokane, Washington 99212-1275
(509) 536-1200

6.7.2 Historical Information and Mine Description/Features

The Homestake No. 1 Mine is a former copper, gold, silver and mine situated in the Northport
district, Washington. The mine is part of the Electric Point property. (Huntting 1956)

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6.7.3 START-2 Mine Visit

On June 24, 2001, the START-2 visited the Homestake No. 1 Mine and conducted a visual
inspection of the property and surrounding area (Appendix B, Team 2 Phase 1, Page 13). The area
consisted of shafts and two waste rock piles (Appendix A, Photos 29-5 through 29-15). One waste rock
pile measured an estimated 300 to 400 cubic yards. The START-2 did not observe any overland drainage
routes from the waste rock piles or shafts to surface water. Access to the mine was unrestricted. No
residents or potential receptors were observed on the property. No samples were collected at the
Homestake No. 1 Mine.

6.8 ANTELOPE MINE
6.8.1 Mine Location

Latitude:

Longitude:

Legal Description:

CERCLISID:

County:

Contact:

48° 52' 04.80"N
118° 01' 05.88"W

Sections 19-20, Township 39N, Range 38E
WAN001002368
Stevens
William Inglis

551 Austin Street, Suite 1103
Coquitlam, British Columbia
V3K6R7 Canada

6.8.2 Historical Information and Mine Description/Features

The Antelope Mine is a former copper and gold mine located in the Orient district, Washington.
The mine claim, located in 1898, is reported to have produced 50 tons of ore (Huntting 1956). Bedrock
outcrops are largely covered with deposits of glacial drift, but where exposed are a part of the Jumbo
volcanic formation. A vein, averaging in width from two and one-half to four feet, consists of
chalcopyrite, pyrite, and pyrrhotite. Small quantities of melanterite are present in vein pockets.
(Weaver 1920)

6.8.3 START-2 Mine Visit

On June 24, 2001, the START -2 visited the Antelope Mine and conducted a visual inspection of
the property and surrounding area (Appendix B, Tearn 2 Phase 1, Page 13). The mine was accessed by a
Forest Service road and is situated approximately 50 feet from the end of the road. The area consisted of

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a shaft and a waste rock pile (Appendix A, Photos 29-3 and 29-4). The shaft opening measured 15 feet
by 10 feet and the waste rock pile measured approximately 40 feet long by 40 feet wide by 2 feet deep.
The START -2 did not observe any overland drainage routes from the shaft or waste rock pile to surface
water. No residents or potential receptors were observed on the property. No samples were collected at
the Antelope Mine.

6.9 HUBBARD MINE
6.9.1 Mine Location

Latitude:

Longitude:

Legal Description:

CERCLISID:

County:

Contact:

48° 55' 15.96"N
117° 52' 03.72"W

ElA Section 32, Township 40N, Range 39E

WAN001002380

Stevens

Colville National Forest

765 South Main

Colville, Washington 99114

6.9.2 Historical Information and Mine Description/Features

The Hubbard Mine is a former copper, gold, lead, silver, and zinc mine situated at the head of
Squaw Creek, Washington. The mine was reported to be owned by Bruder Mining Company, Hubbard
Mining Corporation (1945), and Mines Management, Inc. (1949). Historical ownership information from
the time the facility began operations to the present is unknown. The ore deposit consists of sulfides
concentrated in small bunches in a quartz vein from 10 to 12 feet wide in phyllite. (Huntting 1956)

6.9.3 START-2 Mine Visit

On June 24, 2001, the START -2 visited the Hubbard Mine and conducted a visual inspection of
the property and surrounding area (Appendix B, Team 2 Phase 1, Page 14). A waste rock pile, three
shafts, a log structure, and former housing were observed on the property (Appendix A, Photos 29-23,
29-24, and 30-1 through 30-5). The waste rock pile measured approximately 40 feet by 40 feet by 20 feet
deep. The START-2 did not observe any overland drainage routes from the waste rock pile to surface
water. Access to the mine was unrestricted. No residents or potential receptors were observed on the
property. No samples were collected at the Hubbard Mine.

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6.10 NEW LEADVILLE MINE

6.10.1 Mine Location

Latitude:

Longitude:

Legal Description:

48° 44' 08.52"N
117° 52' 33.60"W

CERCLISID:

SE% Section 3, Township 37N, Range 39E
WAN001002392

County:
Contact:

United States Department of the Interior
Bureau of Land Management
Spokane District Office
1103 N. Fancher

Spokane, Washington 99212-1275
(509) 536-1200

Stevens

6.10.2	Historical Information and Mine Description/Features

The New Leadville Mine is a former lead mine located in the Bossburg mining district,
Washington. An alternate name is the Yo Tambien Mine. The mine produced prior to 1924
(Huntting 1956). The ore body is irregular in shape and has been stopedto a considerable extent near the
surface (Jenkins 1924). Historical ownership information from the time of patent to the present is
unknown.

6.10.3	START-2 Mine Visit

On June 20, 2001, the START -2 visited the New Leadville Mine and conducted a visual
inspection of the property and surrounding area (Appendix B, Team 3 Phase 1, Pages 11 and 12). The
mine area consisted of two adits, a waste rock pile, building debris, a collapsing building, and remnants
of rail lines (Appendix A, Photos 10-17 through 10-22). Adit 1 appeared to flowinto adit 2. Adit 1 was
located approximately 39 feet southwest from the collapsing building. Adit 2 was located approximately
23 feet south and 20 feet west from adit 1. The drainage route from adit 2 was dry. A pH reading of 6
was measured at the discharge from adit 1. The waste rock pile, located approximately 53 feet from adit
1, measured an estimated 25 feet long by 40 feet wide by 5 feet deep. Remnants of rail lines were
observed above adits 1 and 2. The START-2 did not observe any overland drainage routes from the adits
or waste rock pile to surface water. Access to the mine was unrestricted. No residents or potential
receptors were observed on the property. No samples were collected at the New Leadville Mine.

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6.11 R.J. MINE

6.11.1 Mine Location

Latitude:

Longitude:

Legal Description:

48° 43' 54.84"N

County:

CERCLISID:

117° 52' 31.80"W

Section 3, Township 37N, Range 39E

WAN001002395

Stevens

6.11.2	Historical Information and Mine Description/Features

The RJ. Mine is a former lead and silver mine located in the Northport mining district,
Washington (Weaver 1920). The mine was located in 1900 (Battien 1998). Mine formation is a
bluish-white limestone forming a high bluff on the east side of Clugston Creek. Veins in the form of
replacement deposits occur in fracture zones and contain galena with silver. The property has been
developed by several open cuts, shallow shafts, and short tunnels (Weaver 1920). Historical ownership
information from the time of patent to the present is unknown.

6.11.3	START-2 Mine Visit

On June 20, 2001, the START -2 visited the R.J. Mine and conducted a visual inspection of the
property and surrounding area (Appendix B, Tearn 3 Phase 1, Page 13). The START-2 observed a waste
rock pile and a flowing adit (Appendix A, Photos 11-1 and 11-4). Adit flow was estimated to be 2 to
5 cubic feet per second (cfs) and was drained by a 10-inch diameter polyvinyl chloride pipe extending
approximately 50 feet and ending abruptly (Appendix A, Photo 11-1 and 11-3). Discharge continued to
flow an estimated 150 feet before infiltrating the ground. Inside the adit a spray painted sign read
"ORMC 154465 Eureka Surprise" (Appendix A, Photo 11-2). The distance of the adit from the waste
rock pile is approximately 88 feet. The waste rock pile measured approximately 46 feet tall by 90 feet
wide by 20 feet deep. The area at the base of the waste rock pile was dry and vegetation was growing on
the pile. The START-2 did not observe any overland drainage routes from the adit or waste rock pile to
surface water. Access to the mine was unrestricted. No residents or potential receptors were observed
on the property. No samples were collected at the RJ. Mine.

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6.12 VAN STONE MINE/MILL

6.12.1 Mine/Mill Location

Latitude:

Longitude:

Legal Description:

48° 45' 38.16"N
117° 45' 23.76"W

ElA Section 33, Township 38N, Range 40E

CERCLISID:

WAD980834808
Stevens

County:
Contact:

Equinox Resources (Washington) Inc.
c/o Mano River Resources Inc.

Suite 600 890 West Pender Street
Vancouver, British Columbia
V6C 1K4 Canada
(604)689-1700
fax (604) 687-1327

6.12.2 Historical Information

The Van Stone Mine/Mill is a former cadmium, lead, and zinc mine/mill located on the upper
portion of Onion Creek near Northport, Washington (Derkey et al. 1990). The mine is reported to have
produced in 1930, 1937, 1942, and 1952-1956 (Derkey et al. 1990). Production to the end of 1956 was
2,242,960 tons of ore milled, yielding 10,700 tons of lead concentrates and 120,000 tons of zinc
concentrates (Mills 1977).

George Van Stone claimed and worked the mine/mill until 1926 (Battien 1998). Hecla Mining
Company acquired the property in 1926, and Van Stone Mining Company took over in 1930
(Battien 1998). Willow Creek Mines of Nevada operated the mine/mill from 1938 to 1942 (Mills 1977).
In 1950, American Smelting and Refining of Salt Lake City bought the claims and the surrounding land
(Battien 1998). The property was operated intermittently by Asarco, Inc., during the 1950s and 1960s
(Beacon 1999). In 1972, Callahan Mining Corporation acquired the mill and mine property
(Mills 1977). Equinox Resources, Inc., acquired the property in 1990 and placed it back into production
in 1991 (Beacon 1999). The operations were suspended in late 1992 due to low metal prices and have
been under care and maintenance since January 1993 (Beacon 1999). Equinox Resources, Inc., filed a
preliminary Reclamation and Closure Plan with the Washington State Department of Natural Resources
(DNR) prior to the reopening of the mine/mill in 1991. Under current legislation, Equinox Resources
Inc., is required to file a revised Reclamation and Closure Plan (Beacon 1999). The Reclamation and
Closure Plan present two possible outcomes; closure of existing operations without additional mining,

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and closure following the mining and processing of additional known ore reserves (Beacon 1999). The
objective of the Reclamation and Closure Plan is to provide a systematic approach to decommissioning
the Van Stone Mine/Mill and returning all disturbed lands associated with the mine/mill operations
(post-1971) to a mixed land use capability. The mixed land use classification is defined as consisting of
a combination of forest lands, open space lands, shrub and grasslands, wetlands, wildlife habitat, talus
slopes, and agricultural lands (Beacon 1999).

6.12.3 Mine/Mill Description/Features

The Van Stone Mine/Mill is on the east side of the Columbia River and southwest of Northport,
Washington. Geologic setting includes deposition of heavy minerals in river gravels. Production was
from two open pits a few hundred feet south of the south margin of the Spirit pluton. The ore deposit is
within the middle dolomite unit of the Metaline Limestone, approximately 200 feet from the overlying
upper limestone unit at its closest point. (Mills 1977)

Rock was removed from the mine, crushed on site, and the usable material trucked off site for
further processing. Fine-grained tailings were carried in a slurry via an elevated wooden flume first to
the old tailings pile, and later to a large tailings pile located in Sections 29 and 30. The slurry was
dumped into the pile to allow the sediment to settle out of the slurry. The new tailings pile walls were
built up from dried tailings and at present stand 10 to 50 feet above the ground surface. The wooden
slurry line was replaced in the 1990s with a durable, flexible pipe. (Boise Cascade Corporation 1997)

The Van Stone Mine/Mill operations were located in the Onion Creek watershed approximately
21 miles northeast of Colville, Washington. Onion Creek has been categorized by Ecology as a Class
AA (extraordinary) surface water body. A comprehensive analyses of the entire Onion Creek watershed
titled Onion Creek Watershed Analysis was carried out in March 1997 for Boise Cascade Corporation by
a number of organizations, including DNR, Ecology, Stevens County Conservation District, Vaagen
Brothers Lumber, Arden Tree Farm, Inland Empire Paper, Maurice Williamson, and the Washington
Farm Forestry. The purpose of the assessment was twofold: to provide an understanding of the current
and possible future states of channel conditions, and to locate accessible fish habitat in the watershed to
identify existing conditions and habitats of special concern. The assessment identified localized
evidence of land use impacts to fish-bearing channels including a disturbance described as "major" in the
tributary adjacent to the Van Stone Mine due to an apparent tailings pipe-burst or associated slope failure
which occurred prior to 1968. (Raines, et. al. 1997)

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6.12.4 START-2 Mine/Mill Visit

On June 22 and 23, 2001 the START-2 visited Van Stone Mine/Mill and conducted a visual
inspection of the property and surrounding area (Figures 6-9 through 6-11; Appendix A, Photos 1-1
through 9-25; Appendix B, Team 1 Phase 1, Pages 24 and 25; Team 2 Phase 1, Pages 10 through 12;
Team 3 Phase 1, Pages 20 through 22). The mine/mill area consisted of a waste rock storage area, two
tailings piles, an open pit, a seepage pond, buildings, and stained soil areas.

The waste rock storage area was constructed by end dumping to the south contour from the open
pit haul road. The eastern toe of the waste rock storage area consists mostly of larges and is located less
than 100 feet of the Northeast Fork of Onion Creek. Slopes on the north side of the haul road consist, in
part, of colluvial overburden. Depth and quantity of overburden has yet to be determined.

(Beacon 1999)

The tailings embankments consist of steep sided erodable tailings sands. In some locations the
slopes are heavily rilled, particulary along the south and west faces. (Beacon 1999)

A rock-lined spillway and discharge channel has been installed in the extreme northeast corner of
the main tailings impoundment to direct any excess accumulated rainwater to the adjacent drainage.
Tailings area water quality is monitored every 90 days and is reported to be suitable for discharge under
the facility's Washington State Water Discharge Permit or can be used for irrigation purposes.

A seepage pond is located adjacent to the tailings facility.

The open pit, located in the most southern portion of the area, is oblong in shape with an average
width of 120 feet, an average length of 317 feet, and a maximum depth of 460 feet. The pit is flooded to
an elevation of 3,510 feet or 170 feet above the current pit bottom. The rim of the open pit and portions
of the top bench currently support vegetation. The water in the open pit is separated from a tributary to
the Northeast Fork of Onion Creek by a narrow rock-filled berm. The water level in the open pit is static
at 3,510 feet elevation and excess water seeps through the berm to the adjacent creek (PPE 3).

(Beacon 1999)

The buildings on site include the process plant, crushing plant, mill building, mill shop,
warehouse, change house, assay office, garage, scale house, core storage, switch building, pit shop,
conveyor system, reagent and fuel storage areas, bunk house, and four residences. Other miscellaneous
items include a 20 million gallon water tank, return water tank, power feeders, pump power line, T-6
tractor, car spotter, tailings pipe line, tailings flume, tailings dam, 60 million gallon water tank,

200 million gallon water tank, fire mains and hydrants, domestic water main, two pipe lines, three dams

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and pipe lines, pit power lines and switchgear, pit water line, pit air line, mine shop equipment, and road
equipment. (Beacon 1999)

Six areas of stained soil were noted on the property. The first area was near a liquid propane
tank south of the mill building. The second area was near elevated transformers adjacent to the mill
building. At this location the soil was stained orange and green. The third area was near an aboveground
storage tank (AST) with secondary containment near the entrance to the mine/mill. The containment area
was filled with water and smelled of diesel. No sheen was noted. The secondary containment had been
breached. The fourth area was on a concrete pad with staged transformers and stained soil south of the
liquid propane tank. The fifth area was near staged 55-gallon drums surrounded by stained soil west of
the mine/mill buildings and south of the Roundup Powder Company abandoned building. The sixth area
was near another AST area surrounded by stained soil located east of the shed and staged 55-gallon
drums.

Several unnamed creeks were located adjacent to the property. One unnamed creek was located
south of the mine pit water and could not be accessed due to safety concerns. A second unnamed creek
was located at the southwest portion of the old tailings pile. Surface water runoff from this pile drains to
this creek (PPE 4). A third unnamed creek was located on Boise Cascade Corp. property; no sample was
collected due to lack of access. A fourth unnamed creek was located adjacent to the tailings pile near the
entrance to the mine/mill. Surface water runoff from the tailings pile also drains to this creek at two
locations (PPE 1 and PPE 2). Excess water from the on-site open pit seeps through the pit berm to an
adjacent creek (PPE 3).

A number of public, private, and commercial interests access the mine/mill access road. Boise
Cascade Forest District maintains an easement over the road to access their timber holdings. Washington
Water Power maintains an easement over the road to access a substation located on the mine/mill
property. There are residences near the road junction and the DNRuses the road for fire control.

(Beacon 1999)

Access to the mine/mill is restricted by two locked gates. No logging or grazing was noted in the
vicinity of the property.

6.12.5 Sampling Locations

Sample locations are depicted in Figures 6-12 through 6-14. Twelve waste rock samples
(VSWP01SS through VSWP12SS) were collected from the waste rock pile. The samples were collected
within the overland surface water drainage routes identified by the START-2. The samples were

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collected to determine potential contamination associated with this source. The samples appeared to
consist of tan/gray, fine sand with gravel and rocks. No odor or staining was noted during sample
collection.

Twenty-one tailings samples (VSTP01SS through VST P21SS) were collected from two tailings
piles. The samples were collected within the overland surface water drainage routes identified by the
START-2. The samples were collected to determine potential contamination associated with this source.
The samples appeared to consist of dark gray/brown, fine, dry sand and tailings. No odor or staining was
noted during sample collection. Samples VSTP01SS through VSTP09SS and VSTP21SS were collected
from the tailings pile located near the entrance to the mine/mill. Samples VSTP1 OSS through
VSTP20SS were collected from the old tailings pile located on the eastern portion of the mine/mill.

Seven surface soil samples (VSSSO1 SS through VSSS07SS) were collected from stained soil
areas around the mine/mill property. The samples were collected from stained areas identified by the
START-2. The samples were collected to determine potential contamination associated with these
sources. Odor and staining was noted during sample collection.

One co-located surface water and sediment sample (VSMW01SW and VSMW01SD) was
collected from the mine pit water. The sample was collected within the overland surface water drainage
route identified by the ST ART -2. The sample was collected to determine potential contamination
associated with this source. The surface water sample was clear and blue-green in color. No odor or
staining was noted during the surface water sample collection. The sediment sample appeared to consist
of silty sand to fine gravel, gray to light brown in color, with a slight odor. No staining was noted during
sediment sample collection.

One sediment sample (VSPP01SD) was collected at PPE 1 from the confluence of the tailings
pile and the pond located near the entrance of the mine/mill.

One sediment sample (VSPP02SD) was collected at PPE 2 from the potential overland flow from
the tailings pile to the unnamed creek located near the entrance of the mine/mill.

One sediment sample (VSPP03SD) was collected at PPE 3 from the northwest corner of the mine
pit water area.

One sediment sample (VSPP04SD) was collected from PPE 4 near the southwest portion of the
old tailings pile at the confluence with an unnamed creek.

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6.12.6 Analytical Results

6.12.6.1	Surface Soil Sample Results

The START -2 collected a total of 38 surface soil samples for TAL metals analyses: twelve
waste rock samples (VSWP01SS through VSWP12SS); twenty-one tailings samples (VSTP01SS through
VSTP21SS); and seven surface soil samples (VSSSO1SS through VSSS07SS) from areas of stained soil.

Seven surface soil samples also were analyzed for pesticide/PCBs and SVOCs.

In waste rock samples, significant concentrations of cadmium ranged from 27.9 mg/kgto
234 mg/kg. Significant concentrations of lead ranged from 1,520 mg/kgto 76,500 mg/kg. Significant
concentrations of mercury ranged from 0.26 mg/kg to 1.5 mg/kg. Significant concentrations of zinc
ranged from 3,450 mg/kgto 20,600 mg/kg.

In tailings samples, a significant concentration of lead was detected at 4,710 mg/kg. A
significant concentration of mercury was detected at 0.17 mg/kg. Significant concentrations of zinc
ranged from 2,610 mg/kgto 5,870 mg/kg.

In samples collected from stained soil areas, significant concentrations of cadmium ranged from
24.7 mg/kgto 940mg/kg. Significant concentrations of copper ranged from 218 mg/kgto 461 mg/kg.
Significant concentrations of lead ranged from 771 mg/kgto 181,000 mg/kg. Significant concentrations
of mercury ranged from 0.15 mg/kgto 6.0 mg/kg. Significant concentrations of zinc ranged from
3,560 mg/kgto 431,000 mg/kg. Refer to Table 6-6 for complete data results.

6.12.6.2	Surface Water Sample Results

Analytes of concern that were in the surface water sample collected from the mine pit water
(VSMW01SW) consist of zinc at an estimated concentration of 112 /ig/L.

6.12.6.3	Sediment Sample Results

The START-2 collected five sediment samples for TAL metals analyses. Three sediment
samples were also analyzed for pesticide/PCBs. No analytes were detected at significant concentrations
in the sample from the mine pit. Lead was detected at an elevated concentration of 466 mg/kg and zinc
was detected at an elevated concentration of 1,960 mg/kg in VSPP01SD (PPE 1). Cadmium was detected
at an elevated concentration of 11.9 mg/kg and zinc was detected at an elevated concentration of
3,670 mg/kg in VSPP03SD (PPE 3). No analytes were detected at elevated concentrations in sediment
samples VSPP02SD (PPE 3) or VSPP04SD (PPE 4). Refer to Table 6-7 for complete data results.

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6.13 HOPEAND TWIN CABINS MINE

6.13.1 Mine Location

Latitude:

Longitude:

Legal Description:

48° 53' 09.96"N
118° 01' 37.92"W

CERCLISID:

Sections 7 and 18, Township 39N, Range 38E
WAN001002379

County:
Contact:

United States Department of the Interior
Bureau of Land Management
Spokane District Office
1103 N. Fancher

Spokane, Washington 99212-1275
(509) 536-1200

Stevens

6.13.2	Historical Information and Mine Description/Features

The Hope and Twin Cabins Mine is a former copper, gold, and silver mine located in the Fifteen
Mile Creek district, Washington. An estimated 100 tons of ore were produced. The ore deposit consists
of pyrrhotite containing some chalcopyrite in a mineralized zone about seven feet wide and lying in the
acidic dioritic dike rock. The claim is developed by two tunnels, each about 30 feet in length. In
addition, there are several open cuts and shallow shafts (Weaver 1920). Historic ownership information
from the time of patent to the present is unknown.

6.13.3	START-2 Mine Visit

On June 24, 2001, the START -2 visited the Hope and Twin Cabins Mine and conducted a visual
inspection of the property and surrounding area (Appendix B, Team 2 Phase 1, Page 13). The area
consisted of a shaft and a waste rock pile. The shaft measured approximately 15 feet by 15 feet by
30 feet to water. The waste rock pile measured an estimated 20 feet by 35 feet by 4 feet deep
(Appendix A, Photos 29-21 and 29-22). The START-2 did not observe any overland drainage routes
from the waste rock pile to surface water. Access to the mine was unrestricted. No residents or potential
receptors were observed on the property. No samples were collected at the Hope and Twin Cabins Mine.

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6.14 ST. CRISPIN MINE
6.14.1 Mine Location

Latitude:	48° 56' 30.99"N

Longitude:	117° 47' 07.47"W

Legal Description:	Section 25, Township 40N, Range 39E

CERCLISID:	WANOO1002398

County:	Stevens

6.14.2 Historical Information and Mine Description/Features

The St. Crispin Mine is a former copper, gold, lead, and silver mine situated on Sheep Creek,
approximately one mile west of Northport, Washington. The formation exposed in the bed of Sheep
Creek is a dark, carbonaceous argillite. A shaft was sunk in the creek to a depth of 16 feet on a
mineralized zone in the argillite. Eight other similar mineralized zones are reported to occur to the
southwest. Back from the creek a second shallow shaft was sunk and from it several drifts were driven
(Weaver 1920). Historical ownership information from the time of patent to the present is unknown.

6.14.3 START-2 Mine Visit

On September 13, 2001, the START-2 attempted to locate the St. Crispin Mine. The START-2
followed an access road along Sheep Creek to a campground area at the end of the road. The START-2
continued on foot for approximately a quarter mile along Sheep Creek. No shafts were identified;
however, they could have been submersed under water. The ST ART-2 returned to the campground area
to collect latitudinal and longitudinal coordinates. No samples were collected at the St. Crispin Mine
because the mine was not located.

6.15 NORTHPORT MILL

6.15.1 Mill Location

Latitude:

Longitude:

Legal Description:

CERCLISID:

County:

48° 56' 31.08"N
117° 45' 15.66"W

NE%NW% Section 29, Township 40N, Range 40E

WANOO 1002393

Stevens

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Contact:	Dan Dumaine, General Manager

Mountain Minerals Northwest Company, Ltd.

(a division of Highwood Resources Ltd.)

3403 - 6th Avenue South
Lethbridge, Alberta
Canada T1J 1GC

6.15.2 Historical Information and Mill Description/Features

The Northport Mill is a former rock ore mill situated adjacent to Washington State Highway 25,
in Northport, Washington. The property was listed under Kendrick Mercantile Company (1925), Mines
Management, Inc. (1951), Idaho Continental Mines, Inc. (1964), Silver Crown Mining Company, Inc.
(1970), Tri H Mining Company, Inc. (1979), Crown-S, Inc. (1981), Northport Mill (1985), Matovich
Mining Industries, Ltd. (1990), and Mountain Minerals Northwest Company, Ltd. (1992). Mountain
Minerals Northwest Company, Ltd., is a division of Highwood Resources Ltd., the current property
owner. The property occupies approximately 16 acres. (Pepper 2001)

Highwood Resources, Ltd., operated a rock ore mill at the site from the late 1980s to early 1990s.
The plant feed was impure barite rock mined in the vicinity. The ore was processed for barium sulfate.
The rock ore was crushed then ground, with barite separated using floatation processes. Various
chemicals and reagents were added to cause the barite to float and the calcium carbonate and silica to
settle during floatation. The material that did not float was pumped to a tailings pond by overhead
piping. The tailings pond is lined with a high-density polyethelene (HDPE) 80 millimeters
(Pepper 2001). The lined tailings pond has a waste water re-circulation system of approximately
10,000 cubic feet of volume (Ecology 1990). The dried product was pneumatically conveyed (blown by
dry air) through an underground pipeline to the product storage silo (Pepper 2001).

In August 2002, Highwood Resources, Ltd., the current property owner, conducted the disposal
of laboratory chemicals and drummed waste/tailings present on the property. Disposal activities were
conducted by Spencer Environmental, Portland, Oregon. An inventory of chemicals and wastes/tailings
that were removed from the site was provided to the EPA. As of September 2002, twenty drums of mill
reagents remain on site. All twenty drums have been overpacked. The property owner is exploring
opportunities for use of the reagents elsewhere and continues to address the environmental issues with
this site under the direction of Ecology. (Dumaine 2002).

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6.15.3 EPA Visit

On November 28, 2001, EPA personnel visited the Northport Mill site and conducted a visual
inspection of the property and surrounding area (Figure 6-15; Appendix B, EPA Logbook, Pages 1
through 5). The property is fenced and access is restricted by a locked gate. Representatives of
Highwood Resources Ltd. (Dan Dumaine and Terri Pepper) and representatives of the Colville
Confederated Tribes (Patti Stone and Don Hurst) were present during the visit. The area consisted of
two ASTs, a product storage silo, a conveyor plant, a tailings pond, an ore rock pile, a process building
with chemical feeders and floatation cells, a mill building with an adjoining thickener room, a dryer, an
assay laboratory, an office and a "portable-type" building used for sample preparation (Appendix A,
Photos 47-1 through 47-21). The capacity of each of the ASTs was estimated at 8,000 to 10,000 gallons
(Appendix A, Photo 47-4). The property representatives were not knowledgeable of what the tanks were
used for and believed they were empty. Three barrels observed on the property contained soil-like
material (Appendix A, Photo 47-6). According to Dan Dumaine, he sampled the barrels in the summer of
2001. At the time of the visit, he had not received the sample results. A tailings pond was also observed
on the property. Access to the tailings pond is restricted by a fence (Appendix A, Photo 47-11).
According to Terri Pepper, the pond is lined with an HDPE liner. The volume of solid material observed
at the bottom of the tailings pond was estimated to be 150 feet by 80 feet by 2 feet deep. Mr. Dumaine
mentioned that he also collected samples from the tailings pond in the summer of 2001. At the time of
the visit, he had not received the sample results. Inside the building that housed the thickener room,
numerous drums and containers were observed. Some labels indicated contents including fatty acids,
promoters, frothers, caustic soda, potassium chloride, ammonia acetate, and floatation agents
(Appendix A, Photo 47-16). Inside the assay laboratory, numerous sample jars and containers were
observed with labels indicating oxidizers, hydrochloric acid, amberine, reagents, and others
(Appendix A, Photos 47-19 and 47-20). Sheep Creek is located approximately 150 feet from the mill.
No overland drainage routes from the tailings pond to Sheep Creek were observed. No residents or
potential receptors were observed on the property. No samples were collected at the Northport Mill.

During the visit, Mr. Pepper and Mr. Dumaine briefly discussed plans by the property owner to
reclaim the site. Some of the planned activities include the proper abandonment of the tailings pond,
dismantling and removing some of the equipment found throughout the property, and the proper
removal/disposition of chemical substances on the property.

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6.16 LERO I/NO RIHPORT SMELTER

6.16.1 Smelter Location

Latitude:

Longitude:

Legal Description:

48° 55'23.16"N

County:

CERCLISID:

117° 46' 02.28"W

Section 33, Township 40N, Range 40E

WAD988507323

Stevens

Smelter Owner/Contact:	Murray McConnachie

K.E.S. Contracting Ltd.
1252 Bay Avenue
Trail, British Columbia

Canada VIR 4 A6
(250) 368-5222

6.16.2 Historical Information

The LeRoi/Northport Smelter is a former smelter located northeast of the town center of
Northport, Washington, along Highway 25. The city of Northport is located along the east bank of the
Columbia River approximately 7 miles south of the U.S.-Canada border in Stevens County. (URS 1993)

The Northport-Waneta Road borders the LeRoi/Northport Smelter site along the south and east.
Highway 25 defines the western boundary of the site. The Burlington Northern Sante Fe Railway
(formerly the Spokane Falls and Northern Railroad) runs parallel to the Columbia River and designates
the northern site boundary. The Columbia River is located approximately 200 feet north of the
LeRoi/Northport Smelter property. Properties west of the site are residential homes. Smelter Hill is
located directly east of the site and Silver Crown Mountain is south of the site. A city park with an area
of approximately 10 acres is located northwest of the site along the Columbia River, approximately
50 feet from the site. (URS 1993)

The property encompasses approximately 32 acres and is accessed from the Northport-Waneta
Road via Highway 25 (SAIC 1997). The ground surface generally slopes toward the Columbia River in
elevation from about 1,360 feet above msl at the site to 1,290 feet above msl, the normal pool elevation
for the Columbia River (SAIC 1997). The former smelter buildings, which are no longer standing,
included the furnace building, the roaster building, and the crusher and ore building (Heritage 1981).

Beginning in 1897, the smelter refined copper, lead, and silver ores from mines in northeast
Washington, as well as copper ore from British Columbia, Canada (DHHS 1999). In 1901, the LeRoi
Company smelting operations reorganized as the Northport Smelting and Refining Company

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(URS 1993). By 1908, it was one of the largest smelters on the West Coast, processing 500 tons of ore
per day (URS 1993). In 1909, the smelter closed because of competition from another smelter located in
Trail, British Columbia (URS 1993). During World War I, the government demand for lead encouraged
the Northport Mining and Smelting Company to reopen and process the lead ores that had been
discovered at Leadpoint, Washington, approximately 9 miles east of Northport (URS 1993). In
September 1914, Jerome Day purchased the smelter and renovated it to accommodate lead ores
(URS 1993). The government curtailed its lead purchases in 1921, and subsequently, the smelter closed
and was dismantled in 1922, after 24 years of sporadic operation (DHHS 1999). After the smelter
closed, the American Smelting and Refining Company purchased the site. The company removed the
smelting equipment and transported it to a smelter elsewhere (URS 1993). Between 1922 and 1953, the
inactive site was purchased by J.D. Harms. Between 1953 and 1969, a lumber mill went into operation
on the property (URS 1993). In 1975, Cecil Frazier purchased the property and operated the lumber mill
(URS 1993). In 1985, Steve Frazier purchased the property and business and operated the mill under the
name SSF Building Materials until the property was sold to the current owner in 2001.

6.16.3 Smelter Description/Features

Refer to Appendix F for historical site maps. The smelter, Breen Copper Smelter, operated from
1896 until 1901. The initial smelter operations were rudimentary and involved releases of large
quantities of pollutants. The tellurium ore was more difficult to process; however, it contained high
enough amounts of copper and gold to make the process worthwhile. Tellurium is naturally occurring
and belongs to the same family of elements as selenium and sulfur. Because of the tellurium, the ore had
to be burned or heated to release the minerals. The burning released high amounts of sulfur dioxide into
the air. (URS 1993)

The ore was processed by heap roasting, which involves open burning of the raw ore prior to
placing it in a mineral filtration furnace. The heap roasting process produced a disagreeable sulfur odor;
the local citizens termed the burning piles "stink piles." Local farmers believed that the heap roasting
process was poisoning the nearby soils. (URS 1993)

A slag brick platform was used for the initial burning, or heap roasting, of the ore. The ore was
piled on the brick platform to an approximate depth of 4 feet. Cord wood was then stacked on top of the
ore pile and ignited. The tellurium in the ore would be vaporized during this process, thus freeing the
gold and copper for smelting. The location of this brick platform is where the Northport city wells are

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currently located. Refer to Appendix G for Northport city wells analytical results collected by Stevens
County. (URS 1993)

The burned ore was then placed into the furnace where the separation of the minerals took place.
Limerock was used during the flux process. Tap holes were located at different levels in the furnace to
filter the minerals and rocks (including copper, iron and slag rock). The tap hole for the iron and slag
rock was located higher than the copper tap hole. The iron and slag rock collected from this filtration
was considered waste. The copper mineral was collected and loaded into box cars for shipment to a
copper refinery. (URS 1993)

Because gold is heavy, it settled to the bottom of the furnace and formed a gold matte. After the
gold accumulated to a thickness of 14 inches, the furnace was shut down. Once the furnace and materials
cooled, the sides of the furnace were removed to gain access to the gold matte, which was then pried
from the furnace and cut into pieces before being loaded into box cars and shipped to a gold refinery.
(URS 1993)

The lead smelter used a process more sophisticated than that used in the copper and gold process
of the previous decade, although a large quantity of sulfur (approximately 30 tons per day) was still being
discharged into the air. Filters for the smokestacks were added later. (URS 1993)

In the days of the copper and gold smelter, two large steam engines, fueled by coal, provided
power. Both flywheel steam engines were hooked onto one long line shaft. On the other end of the line
shaft, a dynamo produced 10,000 volts of electricity prior to being boosted by a generator that provided
up to 100,000 volts. Once the smelter reopened to process lead ores, a high-voltage line from Canada
supplied the power, and the steam plant was shut down. (URS 1993)

The abandoned and dismantled smelter remained inactive after closure in 1922. The town of
Northport demolished the buildings for the usable brick. One building retained enough walls to provide
an ice-skating rink during the winter. The railroad was abandoned and the tracks salvaged. (URS 1993)

The smelting operations produced a tailings waste referred to as slag. The slag was usually
placed in piles near the smelter for temporary or permanent disposal. Historical photographs indicate
possible tailings piles located on the northeast portion of the property. The COCs in the slag are arsenic,
copper, lead, mercury, and zinc.

SSF Building Materials, when operational, was one of the largest businesses in Northport,
employing from 18 to 25 people. The entire site was used for the mill. The southern half of the property
maintained the main lumber operations. The northern half, which contained the smelter remnants, was
used to store lumber products and old metal parts such as cars, piping, and roofing. The lumber mill

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processed mostly cedar wood from rough-dimension lumber into exterior siding and exterior paneling.
The mill process included cutting the wood, drying the cut wood, and shipping it. Mill operations were
run on propane. All water used for the mill operations was obtained from the city water supply. The mill
did not discharge to or collect water from the Columbia River. (URS 1993)

The scrap wood materials, including sawdust, were sent to Kettle Falls for the Kettle Falls Water
Power Company, which burned the material for energy. Originally, the lumber mill burned the scrap
wood on site inside a wigwam burner. No wood treatment or chemical use is reported in the past mill
operations. (URS 1993)

Environmental concerns in the Northport area have been investigated since 1925. In 1925, the
area became involved in the first international case concerning air pollution. The Washington State
Department of Health and Ecology conducted an investigation of the furan and dioxin reported in the
Columbia River. A PA and SI was conducted by the EPA in 1993. The site inspection stated antimony,
arsenic, copper, and lead were potentially deposited on site as a result of the former smelter operations,
as they were detected on site at significant concentrations. (URS 1993)

Ecology sampled soil and slag piles at the LeRoi/Northport Smelter in 1997. Sample results
showed levels of metals two or three orders of magnitude above background. Concentrations of up to
1,010 mg/kg arsenic; 337 mg/kg cadmium; 33,400 mg/kg copper; 20,200 mg/kg lead; and 1,750 mg/kg
zinc were detected (Gregory 2000a). Ecology planned to conduct a groundwater investigation at the site;
however, due to availability of resources, this has not been pursued (Gregory 2000b).

6.16.4 START-2 Smelter Visit

On June 29 and September 13, 2001, the START-2 visited the LeRoi/Northport Smelter and
conducted a visual inspection of the property and surrounding area (Figure 6-16; Appendix A, Photos
33-1 through 34-4, 42-1 through 42-8, 46-4 through 46-10; Appendix B, Boat Team, Pages 13 through
17; Team 1 Phase 2, Page 15; Team 2 Phase 2, Pages 20 through 22). The START-2 and EPA personnel
observed areas of black glassy sand-like material along the bank of the Columbia River. A public boat
launch is located directly over this material. The ST ART -2 characterized the material as slag. Sediment
samples were collected at the Columbia River from locations near the boat launch and sand bar/beach
area.

On September 13, 2001, the START-2, the EPA TM, Don Hurst of Fulcrum Environmental, and
the property owner conducted a walk-thro ugh of the property. An area where slag bricks had been
deposited was observed south of the former smelter operations. A potential former tailings pile was

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observed west of the slag brick area. City water wells were observed on the former LeRoi/Northport
Smelter property. The START-2 collected sediment and soil samples from locations on the property.
Water samples were not collected from the City supply wells because local officials did not grant EPA
permission to access the wells to collect samples.

6.16.5	Sampling Locations

Sample locations are depicted in Figures 6-17 and 6-18. Three surface soil samples (NSSL01SS
through NSSL03SS) were collected west of the former tailings area underneath the slag bricks. The
samples were collected within the overland surface water drainage routes identified by the START-2.
The samples were collected to determine potential contamination associated with this source. The
samples appeared to consist of very fine to medium grained sand with sandy reddish slag and yellowish
stain. No odor was noted during sample collection.

Nine sediment samples (NSSL01SD through NSSL09SD) were collected from slag areas along
the Columbia River adjacent to the smelter (PPE 3). The samples were collected within the overland
surface water drainage routes identified by the START -2. The samples were collected to determine
potential contamination associated with this source in the Columbia River. The samples appeared to
consist of dark brown to black medium sand. No odor or staining was noted during sample collection.

Sediment sample NSPP01SD was collected at the confluence of the former tailings pile and the
ditch (PPE 1). The sample appeared to consist of saturated, light brown silt. No odor or staining was
noted during sample collection

One sediment sample (NSDT01SD) was collected in the western portion of a recently
constructed ditch where the former tailings pile potentially was located (PPE 2). The sample was
collected within the overland surface water drainage routes identified by the ST ART -2. The sample was
collected to determine whether potential contamination associated with the tailings pile is migrating to
surface water. The sample appeared to consist of light brown sand fine to medium coarse grained. No
odor or staining was noted during sample collection.

6.16.6	Analytical Results

6.16.6.1 Surface Soil Sample Results

The START -2 collected three surface soil samples from tailings for TAL metals analyses.
Significant concentrations of arsenic ranged from 209 mg/kg to 297 mg/kg. Significant concentrations of
cadmium ranged from 26.9 mg/kg to 105 mg/kg. Significant concentrations of copper ranged from

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2,430 mg/kgto 14,700 mg/kg. Significant concentrations of lead ranged from 2,600 mg/kgto
10,500 mg/kg. Significant concentrations of mercury ranged from 0.28 mg/kg to 0.40 mg/kg. Significant
concentrations of zinc ranged from 978 mg/kgto 5,420 mg/kg. Refer to Table 6-8 for complete data
results.

6.16.6.2 Sediment Sample Results

The START-2 collected 9 sediment samples from slag areas along the Columbia River (PPE 3)
for TAL metals analyses. One sediment sample was also analyzed for pesticide/PCBs and TOC.
Significant/elevated concentrations of arsenic ranged from 7.5 mg/kg to 41.4 mg/kg. Significant/elevated
concentrations of cadmium ranged from 1.5 mg/kg to 4.9 mg/kg. Significant/elevated concentrations of
copper ranged from an estimated concentration of 238 mg/kg to an estimated concentration of
2,960 mg/kg. Significant/elevated concentrations of lead ranged from 230 mg/kg to 845 mg/kg. Mercury
was detected at a significant/elevated concentration of 0.29 mg/kg. Significant/elevated concentrations
of zinc ranged from 1,520 mg/kgto 16,900 mg/kg. Refer to Table 6-9 for complete data results.

The START-2 collected two sediment samples from on-site ditches potentially adjacent to
former tailings piles (PPE 1 and PPE 2) for TAL metals analyses. Arsenic was detected at elevated
concentrations ranging from 17.6 mg/kg to 39.9 mg/kg. Cadmium was detected at elevated
concentrations ranging from 2.6 mg/kg to 5.9 mg/kg. Copper was detected at elevated concentrations
ranging from 124 mg/kg to 1,090 mg/kg. Lead was detected at elevated concentrations ranging from
87.1 mg/kgto 887 mg/kg. Zinc was detected at elevated concentrations ranging from 92.2 mg/kgto
223 mg/kg. Refer to Table 6-10 for complete data results.

6.17 BLACK ROCK MINE/MILL

6.17.1 Mine/Mill Location

Latitude:

Longitude:

Legal Description:

48° 52' 13.45"N
117° 42' 22.12"W

CERCLISID:

Section 24, Township 39N, Range 40E
WAN001002369

County:

Stevens

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Contact:	Mick Vaagen and Trent Lang

Vaagen Brothers Lumber
565 W 5th

Colville, Washington 99114
(509) 684-5071

6.17.2	Historical Information

The Black Rock Mine/Mill is a former lead and zinc mine/mill located in the Northport mining
district, Washington (Derkey et al. 1990). The mine produced six carloads of ore prior to 1920 and
5,280 tons of ore between 1922 and 1924 (Derkey et al. 1990). Total production was 140,856 pounds of
lead; 7,903,447 pounds of zinc, and 377 ounces of silver (Derkey et al. 1990). A newmill was built in
1923 (Battien 1998). The mine was still producing in 1943, but no production results are available
(Battien 1998). By 1964 the mine/mill was under option to American Zinc (Battien 1998). Historical
ownership from 1964 to the present is unknown.

6.17.3	Mine/Mill Description/Features

The Black Rock Mine/Mill is situated on the east side of Deep Creek, 6 miles northeast of
Northport, Washington. The property consists of seven claims and seven acres of deeded land. Ore
occurs disseminated along bedding planes in white, nonsilicified dolomitic marble. Two ore bodies,
indicated by drilling, appear to have moderate ore reserves with an average grade of 8% zinc. The
property is developed by a 250-foot incline, 260-foot adit, and considerable drifting and stoping.

(Huntting 1956)

6.17.4	START-2 Mine/Mill Visit

On June 19, 2001, the START -2 visited the Black Rock Mine/Mill and conducted a visual
inspection of the property and the surrounding area (Figure 6-19; Appendix A, Photos 15-21 through
16-13; Appendix B, Team 1 Phase 1, Pages 10 through 12). The mine/mill area consisted of a waste rock
pile measuring 180 feet by 120 feet by 30 feet deep located east and adjacent to Northport/Alladin Road.
A shaft was identified adjacent to the waste rock pile on the southern portion measuring 10 feet by 5 feet
by unknown depth. No water was flowing from the shaft. The remnants of a mill building and two
sorting bins were located. The collapsed mill building measured 15 feet by 20 feet and was located
adjacent to the waste rock pile on the southern portion and west of the shaft. One sorting bin was located
within the waste rock pile and measured 10 feet by 10 feet. The second sorting bin or potential collapsed

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building was located east of the waste rock pile and measured 10 feet by 10 feet. A residence was
located 20 feet west of Northport/Alladin Road. Farm buildings were located 40 feet west of
Northport/Alladin Road. No PPEs were identified by the START-2. Access to the mine/mill is
unrestricted and the START -2 noted evidence of people removing waste rock from the property. No
logging or grazing was noted in the mine/mill area.

6.17.5	Sample Locations

Sample locations are depicted in Figure 6-20. Three waste rock samples (BRWP01SS through
BRWP03SS) were collected from the waste rock pile. The samples were collected within the overland
surface water drainage routes identified by the START -2. The samples were collected to determine
potential contamination associated with this source. The samples appeared to consist of light brown
medium sand with gravel. No odor or staining was noted during the sample collection.

Two surface soil samples (BRMSOlSSand BRMS02SS) were collected near the collapsed mill
building. The samples were collected within the overland surface water drainage routes identified by the
START-2. The samples were collected to determine potential contamination associated with this source.
The samples appeared to consist of light brown loamy sand. No odor or staining was noted during
sample collection.

6.17.6	Analytical Results

6.17.6.1 Surface Soil Sample Results

The START -2 collected five surface soil samples for TAL metals analyses: three waste rock
samples (BRWP 01SS through BRWP03SS) and two surface soil samples (BRMSOlSSand BRMS02SS)
near the collapsed mill building.

In waste rock samples, significant concentrations of cadmium ranged from 688 mg/kgto 1,090
mg/kg. Significant concentrations of copper ranged from 228 mg/kg to 398 mg/kg. Significant
concentrations of lead ranged from 555 mg/kgto 1,040 mg/kg. Significant concentrations of mercury
ranged from 10 mg/kg to 26.4 mg/kg. Significant concentrations of zinc ranged from 141,000 mg/kgto
207,000 mg/kg.

In soil samples collected near the collapsed mill building, significant concentrations of cadmium
ranged from 27.3 mg/kg to 1,630 mg/kg. A significant concentration of copper was detected at 192
mg/kg. A significant concentration of lead was detected at 1,800 mg/kg. A significant concentration of

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mercury was detected at 0.19 mg/kg. Significant concentrations of zinc ranged from 7,500 mg/kgto
402,000 mg/kg. Refer to Table 6-11 for complete data results.

6.18 GREAT WES TERN MINE

6.18.1 Mine Location

Latitude:

Longitude:

Legal Description:

48° 52' 06.24"N
117" 41' 48.48"W

CERCLISID:

SE% Section 24, Township 39N, Range 40E
WAN001002377

County:
Contact:

Mick Vaagen and T rent Lang
Vaagen Brothers Lumber
565 W 5th

Colville, Washington 99114
(509) 684-5071

Stevens

6.18.2	Historical Information

The Great Western Mine is a former lead and zinc mine located six miles from Northport,
Washington, one and one half miles off Deep Creek Road, near Black Rock and Last Chance mines/mills
(Derkey et al. 1990; Battien 1998). The mine produced $40,000 prior to 1917 (Derkey et al. 1990).
Total production was 434,072 pounds of lead, 125 ounces of silver, 936,524 pounds of zinc (Derkey et al.
1990). In 1943, the mine was owned by L.J. Magney (Battien 1998). Historical ownership information
from the time reported to the present is unknown.

6.18.3	Mine Description/Features

The Great Western Mine is in the middle dolomite unit of the Metaline Formation
(Derkey et al. 1990). The mine consists of two claims known as Great Western and Empire. The ores
are chiefly carbonate of zinc with some carbonate of lead, together with a subordinate amount of galena
and sphalerite (Weaver 1920). The known length of the mineralized zone is 1,000 feet. The mine is
developed by 1,000 feet of adits and about 200 feet in 3 shafts. (Huntting 1956)

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6.18.4	START-2 Mine Visit

On June 21, 2001, the START -2 visited the Great Western Mine and conducted a visual
inspection of the property and the surrounding area (Figure 6-21; Appendix A, Photos 17-23 through
18-13; Appendix B, Team 1 Phase 1, Pages 15 through 17). The mine area consisted of three waste rock
piles, three shafts or shaft systems, and two adits. Waste rock pile 1 was located adjacent to shaft 1
system and measured 18 feet by 30 feet by 3 feet deep. Shaft 1 system comprised 3 shafts within 30 feet
of each other. No discharge was noted by the ST ART-2. West of shaft 1 system and waste rock pile 1
was shaft 2 which measured 15 feet across. No waste rock pile was associated with this shaft and no
discharge was noted by the START-2. Continuing west, waste rock pile 2 and shaft 3 were located.

Waste rock pile 2 measured 18 feet by 30 feet by 3 feet deep. Approximately 120 feet west of shaft 3
and waste rock pile 2 was adit 1 measuring 10 feet by 5 feet by unknown depth. Adit 1 was located on
the east side of Knudson Road; no drainage was noted by the START-2. Waste rock pile 3 was located
on the west side of the Knudson Road and measured 90 feet by 90 feet by 6 feet deep. A collapsed adit
house and adit 2 were located adjacent to waste rock pile 3 on the northern side. No drainage from this
adit was noted by the START-2. No PPEs were identified by the START-2. Access to the mine is
unrestricted. The START-2 noted evidence of grazing and logging within 0.25 mile of the mine.

6.18.5	Sampling Locations

Sample locations are depicted in Figure 6-22. Two waste rock samples (GWWP01SS and
GWWP02SS) were collected from the waste rock pile south of Knudson Road. The samples were
collected within the overland surface water drainage routes identified by the ST ART -2. The samples
were collected to determine potential contamination associated with this source. The samples appeared
to consist of brown coarse sand and gravel. No odor or staining was noted during the sample collection.

6.18.6	Analytical Results

6.18.6.1 Surface Soil Sample Results

The START -2 collected two surface soil samples from waste rock for TAL metals analyses.
Significant concentrations of cadmium ranged from 166 mg/kg to 490 mg/kg. Significant concentrations
of lead ranged from 6,200 mg/kg to 24,000 mg/kg. Significant concentrations of mercury ranged from
2.5 mg/kg to 4.3 mg/kg. Significant concentrations of zinc ranged from 52,700 mg/kg to 118,000 mg/kg.
Refer to Table 6-12 for complete data results.

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6.19 LAST CHANCE MINE/MILL

6.19.1 Mine/Mill Location

Latitude:

Longitude:

Legal Description:

48° 51' 59.40"N
117° 41' 56.40"W

SW% SE% Section 24, Township 39N, Range 40E

CERCLISID:

WASFN1002162
Stevens

County:
Contact:

Mick Vaagen and T rent Lang
Vaagen Brothers Lumber
565 W 5th

Colville, Washington 99114
(509) 684-5071

6.19.2	Historical Information

The Last Chance Mine/Mill is a former lead, silver, and zinc mine/mill located 5 miles southeast
of Northport, Washington (Derkey et al. 1990; E & E 2000). From Northport, the mine/mill is accessed
via Colville-Aladdin Northport Road, which runs on the west side of the property (E & E 2000). The
mine/mill is reported to have produced $600,000 prior to 1937 (Derkey et al. 1990). One carload of ore
was shipped in 1938 and small amounts of concentrate were shipped between 1947 and 1949
(Derkey et al. 1990). Between 1904 and 1954, the mine/mill produced 5,937,708 pounds of lead;
18,567 pounds of silver; and 110,110 pounds of zinc (Derkey et al. 1990). The construction of the
floatation mill is reported to have begun in 1940 ( E & E 2000). Juniper Lead Company owned the
mine/mill from 1907 to 1926 (E & E 2000). Reports indicate that in 1938 the property was owned by
Mrs. A. Baker, the widow of the previous owner Al Baker (E & E 2000). Last Chance Consolidated
Mines, Inc., was listed as the owner since 1948 (Battien 1998). Historical ownership information from
1948 to the present is unknown.

6.19.3	Mine/Mill Description/Features

The Last Chance Mine/Mill consists of three patented claims and a mill site (Huntting 1956).
The mine is in the middle dolomite of the Metaline Formation (Mills 1977). Ore shoots occur in a
mineralized shear zone in dolomite, especially at fracture intersections. The zone is as much as 5 feet
wide (Huntting 1956). Two distinct veins are remarkably uniform in strike and dip over a combined
strike length of 650 feet and a dip length of at least 500 feet. The veins are emplaced along faults and

10:START-2\01020028\S759	6-40


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appear parallel or sub-parallel to bedding (Mills 1977). The property is developed by four adits, more
than 1,000 feet in open cuts and trenches, and a 60-ton gravity-floatation mill (Huntting 1956).

6.19.4	START-2 Mine/Mill Visit

On June 20, 2001, the START -2 visited the Last Chance Mine/Mill and conducted a visual
inspection of the property and surrounding area (Figure 6-23; Appendix A, Photos 16-14 through 17-22;
Appendix B, Team 1 Phase 1, Pages 13 and 14). The mine/mill area consisted of two waste rock piles.
The larger pile was located north of the north shaft and measured 1,320 feet by 75 feet by 2 feet deep.
The smaller waste rock pile was located west of the north shaft and measured 75 feet by 45 feet by
unknown depth. A tailings pile surrounding a former house or office and mill building was located west
of the waste rock piles and measured 600 feet by 105 feet by 3 feet deep. East of the waste rock piles and
the abandoned road the ST ART -2 located a north and south shaft and an adit upgradient from the north
shaft. A seep was located near the mouth of the south shaft which flows into the unnamed creek. Further
east of the shafts, an unnamed creek was documented. The shaft discharge flowed into the unnamed
creek (PPE 1) and continued west past the waste rock piles, through the tailings pile (PPE 2) and
infiltrated the ground prior to reaching the Colville-Alladin Northport Road. South of the point of
infiltration, a drainage ditch and culvert were observed. The potential flow from the culvert travels by
sheet flow into Deep Creek. Access to the mine/mill is unrestricted. No logging or grazing was noted in
the mine/mill area.

6.19.5	Sampling Locations

Sample locations are depicted in Figure 6-24. Three waste rock samples (LCWP01SS through
LCWP03SS) were collected from the larger waste rock pile located north of the north shaft. The samples
were collected within the overland surface water drainage routes identified by the ST ART -2. The
samples were collected to determine potential contamination associated with this source. The samples
appeared to consist of dry, brown, fine sand/silt. No odor or staining was noted during sample collection.

Three tailings samples (LCTP01SS through LCTP03SS) were collected from the tailings pile
located near the former mill building. The samples were collected within the overland surface water
drainage routes identified by the START-2. The samples were collected to determine potential
contamination associated with this source. The samples appeared to consist of brown-orange fine
sand/silt. No odor was noted during sample collection.

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Three surface soil samples (LCMSO1SS through LCMS03SS) were collected from the former
mill building area. The samples appeared to consist of medium brown, fine sand with gravel. No odor
was noted during sample collection.

One surface water sample was collected from the discharge of water originating at the shaft
(LCADO1SW). The sample was collected within the overland surface water drainage route identified by
the START-2. The sample was collected to determine potential contamination associated with this
source. The sample was clear and no odor or staining was noted during sample collection.

Sediment sample LCPPO1SD was collected at the confluence of the adit discharge and the
unnamed creek (PPE 1). The sample appeared to consist of gray-brown-black medium sand with gravel.
The sample was wet with an organic odor. No staining was noted during sample collection.

Sediment sample LCPP02SD was collected at the confluence of the tailings and the unnamed
creek (PPE 2). The sample appeared to consist of black-brown medium sand/silt. The sample was wet
with no odor. No staining was noted during sample collection.

6.19.6 Analytical Results

6.19.6.1 Surface Soil Sample Results

The START-2 collected nine surface soil samples for TAL metals analyses: three waste rock
samples (LCWP01 SS through LCWP03SS); three tailings samples (LCTP01SS through LCTP03SS); and
three surface soil samples from the former mill building area (LCMSO 1SS through LCMS03SS).

In waste rock samples, significant concentrations of cadmium ranged from 285 mg/kgto
349 mg/kg. Significant concentrations of lead ranged from 113,000 mg/kg to 170,000 mg/kg. Significant
concentrations of mercury ranged from 1.5 mg/kg to 2.7 mg/kg. Significant concentrations of zinc
ranged from 67,700 mg/kgto 89,800 mg/kg.

In tailings samples, significant concentrations of cadmium ranged from 269 mg/kg to 518 mg/kg.
Significant concentrations of lead ranged from 72,900 mg/kgto 110,000 mg/kg. Significant
concentrations of mercury ranged from 1.3 mg/kg to 2.3 mg/kg. Significant concentrations of zinc
ranged from 63,900 mg/kg to 112,000 mg/kg.

In soils samples collected from the former mill building area, significant concentrations of
cadmium ranged from 136 mg/kgto 471 mg/kg. Copper was detected at a significant concentration of
2,790 mg/kg. Significant concentrations of lead ranged from 18,000 mg/kgto 86,200 mg/kg. Significant
concentrations of mercury ranged from 1.3 mg/kg to 2.6 mg/kg. Significant concentrations of zinc
ranged from 36,900 mg/kgto 107,000 mg/kg. Refer to Table 6-13 for complete data results.

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6.19.6.2 Surface Water Sample Results

The surface water sample (LCADO1SW) collected at the shaft contained zinc at an estimated
concentration of 459 ^ig/L.

6.19.6.3 Sediment Sample Results

The START -2 collected two sediment samples at PPEs to the on-site unnamed creek for TAL
metals analyses. Cadmium was detected at a elevated concentration of 56.9 mg/kg. Elevated
concentrations of lead ranged from 385 mg/kgto 14,600 mg/kg. Elevated concentrations of mercury
ranged from 0.46 mg/kg to 1.2 mg/kg. Elevated concentrations of zinc ranged from 1,100 mg/kgto
13,400 mg/kg. Refer to Table 6-14 for complete data results.

6.20 DEEP CREEK MINE
6.20.1 Mine Location

Latitude:

Longitude:

Legal Description:

CERCLISID:

County:

Contact:

48° 51' 48.96"N
117° 42' 54.36"W

N!/2NE% Section 26, Township 39N, Range 40E

WASFN1002161

Stevens

T erry Richmond
Richmond Family Trust
448 North Walnut
Colville, Washington 99114
(509) 684-3033

6.20.2 Historical Information

The Deep Creek Mine is a former lead, silver, and zinc mine located west of Deep Creek and
approximately 7 miles south of Northport, Washington (Derkey et al. 1990, E & E 2000). From
Northport the property is accessed via the Colville-Alladin Northport Road, which runs on the east side
of the property (E & E 2000). The mine is reported to have produced from 1944 to 1955 (Derkey et al.
1990). Previous owners include the Northport Mining Company (1919-1921); Anaconda Copper Mining
Company (1926-1941); Western Knapp Engineering Company (1941-1944); Jamison-Higginbotham
Partnership (1944-1947); Goldfields Consolidated Mines (1947-1964); American Zinc Company
(1964-1971); Columbia Resources, Inc. (1971-1979); and Great Basins Petroleum, Inc., from 1979 to the

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current owner, the Richmond Family Trust (E & E 2000). There are no records available after 1979 with
regards to ownership changes, and no information is available regarding other periods of ownership.

6.20.3	Mine Description/Features

The Deep Creek Mine is located approximately 100 yards from the west bank of Deep Creek.
Mineralization occurs in the Metaline Formation (Derkey et al. 1990). The mine was operated from
approximately 1944 to 1956, when the mine was shut down (E & E 2000). The maximum depth of
development was 850 feet bgs. According to tabulations in 1958, the following quantities of metals were
obtained from a total ore production of 763,307 tons: 24,000 pounds of copper; 69 ounces of gold;
15,000,000 pounds of lead; 36,000 ounces of silver; and 66,000,000 pounds of zinc (E & E 2000). The
mine was closed in 1956 due to a combination of factors including a shaft fire, rising mining costs, and
declining metal prices (E & E 2000). Following the closure, the headframe, hoisting, pumping, and other
machinery were removed, and the mine was allowed to flood to within several feet of the shaft collar.
(E & E 2000)

6.20.4	START-2 Mine Visit

On June 20, 2001, the START -2 visited the Deep Creek Mine and conducted a visual inspection
of the property and surrounding area (Figure 6-25; Appendix A, Photos 21-21 through 24-8; Appendix B,
Team 2 Phase 1, Pages 6 and 7). The mine area consisted of four waste rock piles. Waste rock pile 1
located adjacent to Deep Creek measured 20 feet by 20 feet by 5 feet deep. There could be potential
overland flow from waste rock pile 1 to Deep Creek (PPE 1). The flow of Deep Creek was estimated by
the START-2 at 100 cfs. Waste rock pile 2 located adjacent to the main road measured 60 feet by 20 feet
by 10 feet deep. Waste rock pile 3 located west of the pad with power tower and fence measured
100 feet by 30 feet by 10 feet deep. Waste rock pile 4 located near an adit on the south end of the
property measured 40 feet by 20 feet by 5 feet deep. The roads on the mine property were comprised of
waste rock. The entrance road measured 700 feet by 20 feet by 2 feet deep. The road heading south to
the adit measured 400 feet by 15 feet by 2 feet deep and also consisted of tailings. Tailings were found
scattered throughout the mine area. Concentrated areas were located in two on-site wet areas (one on the
south end of the property near the adit measuring 15 feet by 15 feet and one south of the main entrance
road measuring 30 feet by 30 feet) and north and west of waste rock pile 2 adjacent to the entrance road.
A swampy area was located south of the gated entrance and measured 150 feet by 100 feet. There could
be potential flow from this swampy area to Deep Creek (PPE 2). The pad with power tower and fence

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located between the two wet areas measured 25 feet by 40 feet. A garbage and debris pile was located
adjacent to the main road and measured 50 feet by 20 feet by 5 feet deep. West of the garbage and debris
pile was an assay building measuring 20 feet by 20 feet. Further west and north four buildings were
identified. Building 1 measured 50 feet by 40 feet and contained a winch and four small transformers.
Building 2 measured 100 feet by 45 feet and contained two small transformers, motor and pumps, and a
foundation. Building 3 measured 40 feet by 40 feet. Building 4 measured 30 feet by 30 feet. Other
features on the south end of the property include a concrete pad, a shaft, and a pond. The concrete pad
measured 15 feet by 20 feet. The adit in this area measured 4 feet by 3 feet by unknown depth. The adit
was not flowing; however, standing water was present. The shaft measured 5 feet by 5 feet by
approximately 800 feet deep. The pond measured 20 feet by 20 feet by 5 feet deep. A locked gate was
present at the mine; however, one could cross the creek to gain access to the property. A residence was
located to the east of the mine and outside of the gated area. No logging or livestock grazing was noted
in the vicinity.

6.20.5 Sampling Locations

Sample locations are depicted in Figure 6-26. One waste rock sample (DCWP01SS) was
collected from waste rock pile 1 located adjacent to Deep Creek. The sample was collected within the
overland surface water drainage route identified by the START-2. The sample was collected to
determine potential contamination associated with this source. The sample appeared to consist of white,
quartz-like rock. No odor or staining was noted during sample collection.

Three waste rock samples (DCWP02SS through DCWP04SS) were collected from the waste
rock comprising the main road. The samples were collected within the overland surface water drainage
routes identified by the START-2. The samples were collected to determine potential contamination
associated with this source. The samples appeared to consist of white, quartz-like rock. No odor or
staining was noted during sample collection.

One waste rock sample (DCWP05SS) was collected from waste rock pile 3 located west of the
pad with power tower and fence. The sample was collected within the overland surface water drainage
route identified by the START-2. The sample was collected to determine potential contamination
associated with this source. The sample appeared to consist of white, quartz-like rock. No odor or
staining was noted during sample collection.

Nine tailings samples (DCTP01SS through DCTP09SS) were collected from the northern portion
of the mine area. The samples were collected within the overland surface water drainage routes

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identified by the START-2. The samples were collected to determine potential contamination associated
with this source. The samples appeared to consist of fine, light brown, dry soil. No odor or staining was
noted during sample collection.

Three tailings samples (DCTP1 OSS through DCTP12SS) were collected from the wet area
located north of the pad with power tower and fence. The samples were collected within the overland
surface water drainage routes identified by the ST ART -2. The samples were collected to determine
potential contamination associated with this source. The samples appeared to consist of fine, light
brown, dry soil. No odor or staining was noted during sample collection.

Three tailings samples (DCTP13 SS through DCTP15 SS) were collected on the road leading to
the adit. The samples were collected within the overland surface water drainage routes identified by the
START-2. The samples were collected to determine potential contamination associated with this source.
The samples appeared to consist of fine, light brown, dry soil with some white quartz-like rocks. No
odor or staining was noted during sample collection.

Three tailings samples (DCTP 16SS through DCTP18SS) were collected from the wet area north
of the adit. The samples were collected within the overland surface water drainage routes identified by
the START-2. The samples were collected to determine potential contamination associated with this
source. The samples appeared to consist of fine, brown, moist soil. No odor or staining was noted
during sample collection.

One surface water sample (DCAD01SW) was collected from the adit. The sample was collected
within the overland surface water drainage route identified by the ST ART -2. The sample was collected
to determine potential contamination associated with this source. The sample was clear. No odor or
staining was noted during sample collection.

6.20.6 Analytical Results

6.20.6.1 Surface Soil Sample Results

The START-2 collected 23 surface soil samples for TAL metals analyses: five waste rock
samples (DCWP01SSthrough DCWP05SS) and eighteen tailings samples (DCTP01SSthrough
DCTP18SS).

In waste rock samples, significant concentrations of cadmium ranged from 24.9 mg/kgto
25.2 mg/kg. Significant concentrations of lead ranged from 558 mg/kgto 799 mg/kg. Significant
concentrations of mercury ranged from 0.14 mg/kgto 0.25 mg/kg. Significant concentrations of zinc
ranged from 4,220 mg/kgto 7,780 mg/kg for zinc.

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In tailings samples, significant concentrations of cadmium ranged from 23.8 mg/kgto 425 mg/kg.
Significant concentrations of lead ranged from 632 mg/kg to 13,300 mg/kg. Significant concentrations of
mercury ranged from 0.17 mg/kg to 3.2 mg/kg. Significant concentrations of zinc ranged from 4,240
mg/kgto 123,000 mg/kg for zinc. Refer to Table 6-15 for complete data results.

6.20.6.2 Surface Water Sample Results

Analytes detected in the surface water collected from the adit (DCAD01SW) include lead at
12.9 /ig/L and zinc at an estimated concentration of 558 /ig/L.

6.21 COPPER KING MINE
6.21.1 Mine Location

Latitude:

Longitude:

Legal Description:
CERCLISID:

County:

Contact:

48° 46' 51.60"N
117° 39' 12.24"W

Section 20, Township 38N, Range 4IE

WAN001002370

Stevens

Mick Vaagen and T rent Lang
Vaagen Brothers Lumber
565 W 5th

Colville, Washington 99114
(509) 684-5071

6.21.2 Historical Information

The Copper King Mine is a former copper and silver mine located in the Northport mining
district, Washington (Derkey et al. 1990). The mine is reported to have produced between 1904 and
1941 (Derkey et al. 1990). Copper King Mining Company owned the mine from 1905 to 1907 (Battien
1998). United Copper Company operated the mine from 1916 to 1918 and by 1930 ownership changed
to Northwest Mines Corporation. In 1950, the mine was owned by Banner Mining Company and in 1976
the mine had been acquired by an eastern syndicate (Battien 1998). Historical ownership information
from 1976 to the present is unknown.

6.21.3 Mine Description/Features

The Copper King Mine is in a shear zone between the upper and lower units of the Wallace
Formation (Derkey et al. 1990). The mine consists of two claims known as the Copper King No. 1 and

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No. 2. The property is developed by a lower tunnel driven for a distance of 221 feet, an upper tunnel
driven for a distance of 285 feet, and a 20-foot shaft (Weaver 1920). The veins range up to 30 feet wide
and a low-grade ore body was reported to be 40 feet wide and 500 feet long (Derkey et al. 1990). The
ore deposit occurs along the contact between limestone and an intrusive dike (Huntting 1956).

6.21.4	START-2 Mine Visit

On June 19, 2001, the START -2 visited the Copper King Mine and conducted a visual inspection
of the property and surrounding area (Figure 6-27; Appendix A, Photos 15-6 through 15-20; Appendix B,
Team 1 Phase 1, Pages 8 through 10). The mine area consisted of two waste rock piles. One waste rock
pile was located east of Alladin Road and southwest of adit 1 and measured 60 feet by 30 feet by 3 feet
deep. Adit 1 measured 5 feet by 10 feet. No flow or drainage was noted by the ST ART-2. Adit 2 was
located east of adit 1 and measured 5 feet by 10 feet. Adit drainage flowed approximately 75 feet
southwest before infiltrating the ground. There is a potential that during heavy flow adit 2 discharge
could reach Deep Creek (PPE 1). A retention area was documented where the adit discharge infiltrates
the ground measuring 5 feet by 1 feet by 1 feet deep. The retention area was composed of small logs and
plastic sheeting which was estimated to retain approximately 15 gallons. A hose was noted south of the
retention area extending southwest for approximately 20 feet. To the east of adit 2 the START-2
identified a second waste rock pile and shaft. The waste rock pile measured 75 feet by 120 feet by 6 feet
deep. The shaft was surrounded by the waste rock and measured 15 feet by 20 feet by unknown depth.
Standing water was noted. No buildings or evidence of buildings were noted on the property. Access to
the mine is unrestricted and the START-2 noted recent logging. The START-2 also noted grazing in the
area near adit 2.

6.21.5	Sample Locations

Sample locations are depicted in Figure 6-28. Two waste rock samples (CKWPOlSSand
CKWP02SS) were collected from the waste rock pile surrounding the shaft on the northeast portion of
the property. The samples were collected within the overland surface water drainage routes identified by
the START-2. The samples were collected to determine potential contamination associated with this
source. The samples appeared to consist of fine orange and brown sand with trace gravel and pyrite. No
odor or staining was noted during the sample collection.

One surface water sample was collected from the discharge of water originating at adit 2
(CKAD01SW). The sample was collected within the overland surface water drainage route identified by

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the START-2. The sample was collected to determine potential contamination associated with this
source. The sample was clear. No odor or staining was noted during sample collection.

One sediment sample (CKPP01SD) was collected at the confluence of the adit 2 discharge and
the retention area which can flood and flow into Deep Creek (PPE 1). The sample was collected within
the overland surface water drainage route identified by the START-2. The sample was collected to
determine potential contamination associated with this source. The sample appeared to consist of light
brown medium sand with gravel. No odor or staining was noted during sample collection.

6.21.6 Analytical Results

6.21.6.1	Surface Soil Sample Results

The START -2 collected two surface soil samples from waste rock for TAL metals analyses.
Significant concentrations of copper ranged from 559 mg/kg to 1,700 mg/kg. Mercury was detected at a
significant concentration of 0.12 mg/kg. Refer to Table 6-16 for complete data results.

6.21.6.2	Surface Water Sample Results

Analytes detected in the surface water sample collected at adit 2 (CKADO1SW) include lead at
17.9 /ig/L and zinc at an estimated concentration of 180 /ig/L.

6.21.6.3	Sediment Sample Results

The START -2 collected one sediment sample from the retention pond for TAL metals and
pesticide/PCBs analyses. No significant concentrations of TAL metals were detected in the sample.
Refer to Table 6-17 for complete data results.

6.22 SIERRA ZINC MINE/MILL
6.22.1 Mine/Mill Location

Latitude:

Longitude:

Legal Description:

48° 46' 28.20"N

County:

CERCLISID:

117° 40' 06.24"W

Section 20, Township 38N, Range 4IE

WAN001002396

Stevens

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Contact:	United States Department of the Interior

Bureau of Land Management
Spokane District Office
1103 N. Fancher

Spokane, Washington 99212-1275
(509) 536-1200

6.22.2	Historical Information

The Sierra Zinc Mine/Mill is a former gold, lead, silver, and zinc mine/mill off Colville-Alladin
Northport Road, south ofNorthport, Washington (Derkey et al. 1990). Sierra Zinc, sometimes called
Aladdin or Blue Ridge included eight claims and 180 acres of deeded ground (Battien 1998). The
mine/mill was located on the west side of Deep Creek and approximately 4 miles north of Aladdin or
17 miles south of Northport (Battien 1998). The mine is reported to have produced in 1909, 1924, 1925,
1941 through 1944, and between 1950 and 1952 (Derkey et al. 1990). A mill was built in 1942 (Battien
1998). In 1924 and earlier, some development work was performed by T.R Roberts (Battien 1998).

Amos E. Huseland filed claims for part of the mine in 1935 (Battien 1998). Other owners include T.C.
Higginbotham, Goldfield Consolidated, Tri-Nite, and Coronado. Higginbotham sold the mill to
Goldfield Consolidated in 1948 and then bought it back in 1960 (Battien 1998). Tri-Nite purchased the
mill in 1962 (Battien 1998). Coronado leased the property with an option to purchase from Tri-Nite in
1972 (Battien 1998). Additional historical ownership from 1972 to the present is unknown.

6.22.3	Mine/Mill Description/Features

The Sierra Zinc Mine/Mill consists of seven claims. Alternative names include Alladin Mine
and Blue Ridge Mine. The ore deposit consists of galena and sphalerite disseminated in limestone.

Quartz veins carry minor amounts of chalcopyrite, galena, molybdenite, pyrite, and sphalerite. The main
ore body mined prior to 1944 measured 300 feet along the strike, 200 feet along the dip, and 4 to 12 feet
thick. Three smaller ore bodies were mined. The property is developed 8,450 feet in three adits, a
470-foot shaft, and a 300-ton floatation mill. (Huntting 1956)

6.22.4	START-2 Mine/Mill Visit

On June 21, 2001, the START -2 visited the Sierra Zinc Mine/Mill and conducted a visual
inspection of the property and surrounding area (Figure 6-29; Appendix A, Photos 24-10 through 28-2;
Appendix B, Team 2 Phase 1, Page 8 and supplemental pages supplied by Guy Gregory of Ecology).
The property was accessed by Colville-Aladdin Northport Road. The mine/mill area consisted of one

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waste rock pile measuring 100 feet by 50 feet by 5 feet deep. North of the waste rock pile was a tailings
pile measuring 1,000 feet by 2,100 feet by an estimated 20 feet deep. There could be potential overland
flow from the tailings pile to a drainage ditch (PPE 1) located east of the tailings pile. The flow of the
drainage ditch was estimated by the START-2 to be approximately 0.5 cfs. A mill building was located
south of the waste rock pile and tailings pile measuring 250 feet by 225 feet. Northwest of the mill
building an adit was located measuring 2 feet by 2 feet by unknown depth. The discharge was estimated
by the START-2 at approximately 0.5 gallons per minute (gpm). The adit water flowed north into the
forested area. Three residences were located south of the property. A fence was noted along a portion of
the tailings pile; however, gaps were present in the northern fence line. A road with a no trespassing sign
was noted which continued to the southern end of the tailings pile and mine/mill area where several
houses were located. No fence was observed. No logging or grazing was noted in the vicinity of the
property.

6.22.5 Sampling Locations

Sample locations are depicted in Figure 6-30. Twelve waste rock samples (SZWP01SS through
SZWP12SS) were collected from the waste rock pile. The samples were collected within the overland
surface water drainage routes identified by the START -2. The samples were collected to determine
potential contamination associated with this source. The samples appeared to consist of gray, fine, dry
sand. No odor or staining was noted during sample collection.

Twenty-one tailings samples (SZTP01SS through SZTP21SS) were collected from the tailings
pile area. The samples were collected within the overland surface water drainage routes identified by the
START-2. The samples were collected to determine potential contamination associated with this source.
The samples appeared to consist of dark gray, fine, moist to dry soil with some clay. No odor or staining
was noted during sample collection.

One surface soil sample (SZMS01SS) was collected from the mill area. The sample was
collected within the overland surface water drainage route identified by the START-2. The sample was
collected to determine potential contamination associated with this source. The sample appeared to
consist of black, fine, slightly moist sand with lumps. No odor was noted during sample collection.

One surface water sample (SZAD01SW) was collected from the adit. The sample was collected
within the overland surface water drainage route identified by the ST ART -2. The sample was collected
to determine potential contamination associated with this source. The sample was clear. No odor or
staining was noted during sample collection.

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6.22.6 Analytical Results

6.22.6.1	Surface Soil Sample Results

The START-2 collected 34 surface soil samples for TAL metals analyses: twelve waste rock
samples (SZWP01SS through SZWP12SS); twenty-one tailings samples (SZTP01SS through
SZTP21SS); and one surface soil sample (SZMS01SS) from the mill area.

In waste rock samples, significant concentrations of cadmium ranged from 27.2 mg/kgto
121 mg/kg. A significant concentration of copper was detected at 181 mg/kg. Significant concentrations
of lead ranged from 871 mg/kgto 15,800 mg/kg. Significant concentrations of mercury ranged from
0.17 mg/kgto 1.6 mg/kg. Significant concentrations of zinc ranged from 3,820 mg/kgto 32,200 mg/kg.

In tailings samples, significant concentrations of cadmium ranged from 23.4 mg/kgto 130 mg/kg.
Significant concentrations of copper ranged from 180 mg/kgto 443 mg/kg. Significant concentrations of
lead ranged from 917 mg/kg to 5,110 mg/kg. Significant concentrations of mercury ranged from
0.21 mg/kgto 2.7 mg/kg. Significant concentrations of zinc ranged from 3,560 mg/kgto 33,400 mg/kg.

In the surface soil sample collected from the mill area, cadmium was detected at a significant
concentration of 78.2 mg/kg, copper was detected at a significant concentration of 443 mg/kg, lead was
detected at a significant concentration of 4,850 mg/kg, mercury was detected at a significant
concentration of 0.97 mg/kg, and zinc was detected at a significant concentration of 17,500 mg/kg. Refer
to Table 6-18 for complete data results.

6.22.6.2	Surface Water Sample Results

Analytes detected in the surface water sample collected from the adit (SZAD01SW) include zinc
at an estimated concentration of 292 /ig/L.

6.23 MAGMA MINE

6.23.1 Mine Location

Latitude:

Longitude:

Legal Description:

48° 46' 00.48"N
117° 38' 25.08"W

ElA SW% Section 28, Township 38N, Range 41E

CERCLISID:

WAN001002387
Stevens

County:
Contact:

Colville National Forest

765 South Main

Colville, Washington 99114

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6.23.2	Historical Information and Mine Description/Features

The Magma Mine is a former copper, gold, lead, silver, and zinc mine located in the Northport
district, Washington. Alternate names are Easy Money Mine and Eldorado Mine. The mine reportedly
produced 5 tons of ore in 1927. The property was listed under the Magma Molybdenum Mines Company
(1921-1943) and the Magma Mines & Metals Company (1930). Additional historical ownership
information is unknown. The ore minerals are galena, molybdenite, pyrite, scheelite, and sphalerite. The
property is developed by a 610-foot adit, a 110-foot shaft, and 1,800 feet of other workings. (Huntting
1956)

6.23.3	START-2 Mine Visit

On June 28, 2001, the START-2 visited the Magma Mine and conducted a visual inspection of
the property and surrounding area (Appendix B, Tearn 2 Phase 1, Page 28). The area consisted of a
waste rock pile, a collapsed shaft, and the remnants of two sheds (Appendix A, Photos 32-8 through
32-11). The waste rock pile measured an estimated 50 feet by 30 feet with an average depth of 15 feet
and the shaft opening measured approximately 5 feet by 5 feet. The ST ART-2 did not observe any
overland drainage routes from the waste rock pile or shaft to surface water. Access to the mine is
restricted with a locked gate. No residents or potential receptors were observed on the property. No
samples were collected at the Magma Mine.

6.24 FARMER MINE
6.24.1 Mine Location

Latitude:

48°50' 59.28"N

Longitude:

117° 37' 17.40"W

Legal Description: Section 34, Township 39N, Range 4IE

CERCLISID:	WAN001002373

County:
Contact:

Mick Vaagen and T rent Lang
Vaagen Brothers Lumber
565 W 5th

Colville, Washington 99114

Stevens

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6.24.2 Historical Information and Mine Description/Features

The Farmer Mine is a former lead, silver, and zinc mine located at the south end of Deep Lake in
Stevens County, Washington. Historical ownership information from the time of patent to the present is
unknown. The mine consists of two claims known as King Tut No. 1 and No. 2. The mineralized zone is
2 to 20 feet wide in limestone and has been traced for 600 feet. The property is developed by a 135-foot
adit, a smaller adit, 150 feet of shaft work, and an open pit. (Huntting 1956)

6.24.3 START-2 Mine Visit

On June 19, 2001, the START -2 visited the Farmer Mine and conducted a visual inspection of
the property and surrounding area (Appendix B, Tearn 1 Phase 1, Page 6). The area consisted of a shaft
and an adit. The adit was not flowing at the time of the visit (Appendix A, Photos 14-21, 14-22). The
START-2 did not observe any overland drainage routes from the shaft or adit to surface water. Access to
the mine was unrestricted. No residents or potential receptors were observed on the property. No
samples were collected at the Farmer Mine.

6.25 MAKI MINE
6.25.1 Mine Location

Latitude:

Longitude:

Legal Description:

CERCLISID:

County:

Contact:

48° 50' 45.60"N
117° 36' 00.00"W

Section 35, Township 39N, Range 4IE

WAN001002388

Stevens

Mick Vaagen and T rent Lang
Vaagen Brothers Lumber
565 W 5th

Colville, Washington 99114

6.25.2 Historical Information and Mine Description/Features

The Maki Mine is a former cobalt, lead, and zinc mine located at the south end of Deep Lake in
Stevens County, Washington. Historical ownership information from the time of patent to the present is
unknown. The property encompasses 160 acres of deeded land. The ore body is 50 to 100 feet thick and
600 feet long in gray limestone. The property is developed by 125 feet of workings in four shafts and a
number of open cuts. (Huntting 1956)

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6.25.3 START-2 Mine Visit

On June 19, 2001, the START -2 visited the Maki Mine and conducted a visual inspection of the
property and surrounding area (Appendix B, T earn 1 Phase 1, Page 7). The area consisted of two waste
rock piles and two shaft systems (Appendix A, Photo 14-24, 15-1 through 15-5). The volume of one
waste rock pile was estimated to be 500 cubic yards, the other at 200 cubic yards. The adit was not
flowing at the time of the visit. The START-2 did not observe any overland drainage routes from the
waste rock piles or shafts to surface water. No residents or potential receptors were observed on the
property. No samples were collected at the Maki Mine.

6.26 ELECTRIC POINT MINE/MILL
6.26.1 Mine/Mill Location

Latitude:

Longitude:

Legal Description:

CERCLISID:

County:

Contact:

48° 52' 56.28"N
117° 32'29.04"W

Sections 17and 18; Township 39N; Range 42E

WAN001002372

Stevens

Mick Vaagen and T rent Lang
Vaagen Brothers Lumber
565 W 5th

Colville, Washington 99114
(509) 684-5071

6.26.2 Historical Information

The Electric Point Mine/Mill is a former copper, lead, silver, and zinc mine/mill located 4 miles
east of Leadpoint, Washington (Derkey et al. 1990; Battien 1998). The mine is reported to have
produced from 1901 to 1955 (Derkey et al. 1990). Total production was 30,711,917 pounds of lead,
7,154 ounces of silver, and 10,691 pounds of zinc (Derkey et al. 1990). The State Mining Company
owned the mine/mill as of 1975 (Battien 1998). Historical ownership information from 1975 to the
present is unknown.

6.26.3 Mine/Mill Description/Features

The Electric Point Mine/Mill is developed by 10,000 feet of drifts and crosscuts and several
thousand feet of shafts (Huntting 1956). There are two shafts and eight 100-foot levels from which the
ore columns or "chimneys" were reached. A tunnel on the 300-foot level extended to the surface on the

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south side of the hill on which the mine is situated. Production of carbonate ore (30,438,010 tons)
averaged about 25% lead, while the production of sulfide ore (21,569,146 tons) averaged 69% lead. The
ore occurred in large chimneys of anglesite, cerussite, galena, and iron oxide and brecciated dolomite or
magnesian limestone. (Jenkins 1924)

6.26.4	START-2 Mine/Mill Visit

On June 22, 2001, the START -2 visited the Electric Point Mine/Mill and conducted a visual
inspection of the property and surrounding area (Figure 6-31; Appendix A, Photos 19-14 through 20-17;
Appendix B, Team 1 Phase 1, Pages 21 and 22). The mine/mill area consisted of two waste rock piles.
Waste rock pile 1 measured 180 feet by 300 feet by 6 feet deep. Two collapsed shafts were located west
and adjacent to waste rock pile 1. The shaft area measured 60 feet by 60 feet. East of waste rock pile 1
was a collapsed mill measuring 75 feet by 30 feet. Further east, waste rock pile 2 and an ore loading
building were located. Waste rock pile 2 measured 75 feet by 120 feet by 6 feet deep. The ore loading
building measured 20 feet by 10 feet by 10 feet. East of the entrance road a dry tailings pond was located
measuring 90 feet by 75 feet by 3 feet deep. No PPEs were identified by the START-2. Access to the
mine/mill is unrestricted. No logging or grazing was noted in the mine/mill area.

6.26.5	Sampling Locations

Sample locations are depicted in Figure 6-32. Five waste rock samples (EPWP01SS through
EPWP05SS) were collected at the mine/mill. EPWP01SS through EPWP03SS were collected from
waste rock pile 1. The samples were collected within the overland surface water drainage routes
identified by the START-2. The samples were collected to determine potential contamination associated
with this source. The samples appeared to consist of fine/medium tan sand with gravel. No odor or
staining was noted during sample collection. EPWP04SS and EPWP05SS were collected from waste
rock pile 2. The samples were collected within the overland surface water drainage routes identified by
the START-2. The samples were collected to determine potential contamination associated with this
source. The samples appeared to consist of fine/medium tan sand with gravel. No odor or staining was
noted during sample collection.

Three tailings samples (EPTP01SS through EPTP03SS) were collected from the tailings pond.
The samples were collected within the overland surface water drainage routes identified by the
START-2. The samples were collected to determine potential contamination associated with this source.

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The samples appeared to consist of brown/tan/orange fine sand with silt and some gravel. No odor was
noted during sample collection.

Three surface soil samples (EPMS01SS through EPMS03SS) were collected from the mill area.
The samples were collected within the overland surface water drainage routes identified by the
START-2. The samples were collected to determine potential contamination associated with this source.
The samples appeared to consist of fine to medium brown-red sandy silt. No odor was noted during
sample collection.

6.26.6 Analytical Results

6.26.6.1 Surface Soil Sample Results

The START -2 collected 11 surface soil samples for TAL metals analyses: five waste rock
samples (EPWP01SSthrough EPWP05SS); three tailings samples (EPTP01SSthrough EPTP03SS); and
three surface soil samples (EPMS01SS through EPM03SS) from the mill area.

In waste rock samples, significant concentrations of lead ranged from 4,490 mg/kgto
50,100 mg/kg. Significant concentrations of mercury ranged from 0.20 mg/kgto 0.45 mg/kg. Significant
concentrations of zinc ranged from 13,300 mg/kgto 33,800 mg/kg.

In tailings samples, a significant concentration of cadmium was detected at 25.0 mg/kg.

Significant concentrations of lead ranged from 15,800 mg/kgto 26,000 mg/kg. Significant
concentrations of mercury ranged from 0.14 mg/kgto 0.69 mg/kg. Significant concentrations of zinc
ranged from 6,030 mg/kgto 22,000 mg/kg.

In surface soil samples collected from the mill area, significant concentrations of lead ranged
from 11,200 mg/kg to 97,800 mg/kg. Significant concentrations of mercury ranged from 0.16 mg/kg to
0.27 mg/kg. Significant concentrations of zinc ranged from 5,080 mg/kg to 10,600 mg/kg. Refer to
Table 6-19 for complete data results.

6.27 GLADS TONE MINE/MILL
6.27.1 Mine/Mill Location

Latitude:

Longitude:

Legal Description:

48° 53' 12.48"N

County:

CERCLISID:

117° 32' 35.16"W

Section 18, Township 39N, Range 42E

WAN001002376

Stevens

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Contact:	Mick Vaagen and Trent Lang

Vaagen Brothers Lumber
565 W 5th

Colville, Washington 99114
(509) 684-5071

6.27.2	Historical Information

The Gladstone Mine/Mill is a former copper, lead, silver, and zinc mine/mill adjoining Electric
Point Mine/Mill in Washington (Derkey et al. 1990; Battien 1998). The mine/mill is reported to have
produced from 1901 to 1955 except for 1945 (Derkey et al. 1990). Total production was
15,583,187 pounds of lead; 9,602 ounces of silver; and 44,681 pounds of zinc (Derkey et al. 1990). The
mine/mill was owned by Gladstone Mining Company who leased the property to other companies and/or
private owners throughout the history of the mine/mill (Battien 1998). Historical ownership information
from the time reported to the present is unknown.

6.27.3	Mine/Mill Description/Features

The Gladstone Mine/Mill is located in the middle dolomite unit of the Metaline Formation. The
ore deposit consists of chimney-type replacements at brecciated intersections of two or more sets of
fissures. Most chimneys are 10 to 15 feet in diameter and 100 feet deep. Most of the circular to
ellipsoidal chimneys do not extend more than 300 feet from the surface (Derkey et al. 1990). The
mine/mill is developed by 4,000 feet of old workings and an 80-foot shaft (Huntting 1956).

6.27.4	START-2 Mine/Mill Visit

On June 21, 2001, the START -2 visited the Gladstone Mine/Mill and conducted a visual
inspection of the property and surrounding area (Figure 6-33; Appendix A, Photos 18-16 through 19-11;
Appendix B, Tearn 1 Phase 1, Pages 16 through 19). The mine/mill area, which is accessed via a gravel
entrance road, contained one waste rock pile measuring 18 feet by 30 feet by 3 feet deep. Shaft 1 located
west of the waste rock pile measured 10 feet by 10 feet by unknown depth. Shaft 2 was located
approximately 75 feet north of shaft land measured 10 feet by 10 feet by unknown depth. Collapsed
shaft 3 was located approximately 20 feet east and 30 feet north of shaft 2 and measured 10 feet by
10 feet by unknown depth. Continuing north of shaft 3 for 20 feet shaft 4 was identified and measured
10 feet by 10 feet by unknown depth. West of the gravel entrance road and the shafts, the START -2
identified a tailings pile, a collapsed building potentially a mill, and an ore loading cart. The tailings pile

10:START-2\01020028\S759	6 - 58


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measured 60 feet by 60 feet by 6 feet deep and was located 30 feet west of the gravel road. The
collapsed building measured 15 feet by 15 feet and was located near the southern portion of the tailings
pile. The ore loading cart measured 10 feet by 10 feet by 20 feet and was located near the northern
portion of the tailings pile. No PPEs were identified by the START -2. Access to the mine/mill is
unrestricted. The START-2 noted evidence of past logging on the property. No grazing was noted in the
mine/mill area.

6.27.5	Sampling Locations

Sample locations are depicted in Figure 6-34. Three tailings samples (GLTP01SS through
GLTP03SS) were collected from the tailings pile located in between two buildings. The samples were
collected within the overland surface water drainage routes identified by the ST ART -2. The samples
were collected to determine potential contamination associated with this source. The samples appeared
to consist of fine orange-brown sand/silt. No odor was noted during the sample collection.

Three surface soil samples (GLMS01SS through GLMS03SS) were collected from the potential
mill area. The samples were collected within the overland surface water drainage routes identified by the
START-2. The samples were collected to determine potential contamination associated with this source.
The samples appeared to consist of medium brown-orange sand with trace gravel. No odor was noted
during the sample collection.

6.27.6	Analytical Results

6.27.6.1 Surface Soil Sample Results

The START -2 collected six surface soil samples for TAL metals analyses: three tailings samples
(GLTP01SS through GLTP03SS) and three surface soil samples (GLMS01SS through GLMS03SS) from
the potential mill area.

In the tailings samples, significant concentrations of lead ranged from 27,100 mg/kg to
94,000 mg/kg. Significant concentrations of mercury ranged from 0.19 mg/kg to 0.30 mg/kg. Significant
concentrations of zinc ranged from 6,560 mg/kg to 10,500 mg/kg.

In surface soil samples collected from the potential mill area, significant concentrations of lead
ranged from 20,300 mg/kg to 35,200 mg/kg. Significant concentrations of mercury ranged from
0.20 mg/kg to 0.25 mg/kg. Significant concentrations of zinc ranged from 6,020 mg/kg to 6,790 mg/kg.
Refer to Table 6-20 for complete data results.

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6.28 LUCKY FOUR MINE

6.28.1 Mine Location

Latitude:

Longitude:

Legal Description:

48° 52' 51.60"N

County:
Contact:

CERCLISID:

117° 32' 33.00"W

Section 18, Township 39N, Range 42E

WANOO1002386

Stevens

Colville National Forest

765 South Main

Colville, Washington 99114

6.28.2	Historical Information and Mine Description/Features

The Lucky Four Mine is a former copper, gold, lead, and silver mine situated at the north end of
the Fifteen Mile Creek district, Washington. A vein, four and one-half feet in width, trends through the
formations. The ore consists of chalcopyrite, pyrrhotite andpyrite, which yields copper, gold, and silver.
It is estimated that 100 tons of ore have been mined and shipped from the Lucky Four Mine. For a
distance of over 100 feet along the vein there has been trenching and open cut work. The property has
been developed by two shafts, one to a depth of 27 feet, the other to a depth of 12 feet. (Weaver 1920)

6.28.3	START-2 Mine Visit

On June 22, 2001, the START -2 visited the Lucky Four Mine and conducted a visual inspection
of the property and surrounding area (Appendix B, Team 1 Phase 1, Page 20). The area consisted of a
shaft with a crank or pulling system above it (Appendix A, Photo 19-12 and 19-13). No contaminant
source was identified on the property. Access to the mine was unrestricted. No samples were collected
at the Lucky Four Mine.

6.29 RED TOP MINE
6.29.1 Mine Location

Latitude:

Longitude:

Legal Description:

48° 56' 35.88"N
117° 33' 52.20"W

NE% SE% Section 25, Township 40N, Range 4IE

CERCLISID:

WANOO 1002394
Stevens

County:

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Contact:	Mick Vaagen and Trent Lang

Vaagen Brothers Lumber
565 W 5th

Colville, Washington 99114
(509) 684-5071

6.29.2	Historical Information

The Red Top Mine is a former lead, silver, and zinc mine located in the Northport mining
district, Washington (Derkey et al. 1990). The mine is reported to have produced approximately 200 tons
of ore prior to 1939 (Derkey et al. 1990). The mine also is reported to have produced in 1944 and 1953
(Derkey et al. 1990). From 1952 to 1954 the Pacific Northwest Mining Company was listed as the owner
(Battien 1998). By 1962, the Red Top Company leased the mine to Rare Metals Corporation
(Battien 1998). Historical ownership information from 1962 to the present is unknown.

6.29.3	Mine Description/Features

The Red Top Mine consists of five patented and three unpatented claims (Huntting 1956).
Mineralized shear zones are in marble and argillite and are crisscrossed by quartz veins. Some ore shoots
are as much as 4 feet wide and 18 feet long. Four separate mineralized zones, as much as 1 foot wide, cut
across bedding. The ore minerals in these transverse zones include galena, pyrite, scheelite, and
tetrahedrite (Derkey et al. 1990). The mine is developed by a 2,700-foot adit and approximately 1,500
feet of drifts and raises (Huntting 1956).

6.29.4	START-2 Mine Visit

On June 26, 2001, the START -2 visited the Red Top Mine and conducted a visual inspection of
the property and surrounding area (Figure 6-35; Appendix A, Photos 14-11 through 14-20; Appendix B,
Team 1 Phase 1, Pages 3 through 5). The mine area, which is accessed via an unimproved road,
contained a waste rock pile measuring 200 feet by 150 feet by 10 feet deep. An adit, measuring 5 feet by
5 feet by unknown depth, is located north of the waste rock pile and unimproved road. Wooden debris,
measuring 10 feet by 15 feet, was noted west of the waste rock pile and south of the unimproved road. A
portal/shaft, measuring 10 feet by 5 feet, is located west of the adit. No discharge was observed from the
adit or the portal/shaft. The START-2 did not observe an overland drainage route from the waste rock
pile to a body of water. No PPEs were identified. Access to the mine was unrestricted. No logging or
grazing was noted in the vicinity of the mine.

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6.29.5 Sample Locations

Sample locations are depicted in Figure 6-36. Three waste rock samples (RDWP01SS through
RDWP03SS) were collected from the waste rock pile located south of the portal/shaft. The samples were
collected to determine potential contamination associated with this source. The samples appeared to
consist of light brown fine sand with trace gravel. No odor or staining was noted during the sample
collection.

6.29.6 Analytical Results

6.29.6.1 Surface Soil Sample Results

The START -2 collected three surface soil samples from waste rock for TAL metals analyses.
Significant concentrations of cadmium ranged from 111 mg/kg to 177 mg/kg. Significant concentrations
of copper ranged from 225 mg/kg to 1,080 mg/kg. Significant concentrations of lead ranged from
14,600 mg/kg to 28,900 mg/kg. Significant concentrations of mercury ranged from 0.40 mg/kg to
1.1 mg/kg. Significant concentrations of zinc ranged from 10,700 mg/kg to 15,700 mg/kg. Refer to
Table 6-21 for complete data results.

6.30 ANDERSON CALHOUN MINE/MILL
6.30.1 Mine/Mill Location

Latitude:

Longitude:

Legal Description:

CERCLISID:

County:

Contact:

48° 55' 09.84"N
117°35' 28.68"W

NW% Section 2, Township 39N, Range 4IE

WAN001002309

Stevens

Lloyd Nickels

Stevens County Public Utilities
P.O. Box 390

Colville, Washington 99114
(509) 684-7500

6.30.2 Historical Information

The Anderson Calhoun Mine/Mill is a former lead and zinc mine/mill located one mile north of
Leadpoint, Washington (Derkey et al. 1990). The mine is reported to have produced between 1948 and
1952 (Derkey et al. 1990). The first claims were documented in 1937 (Battien 1998). Total production
at the end of 1951 was approximately 100,000 tons (Derkey et al. 1990).

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Andy Anderson discovered mineralization in 1910 and explored it with shallow pits and trenches
(Mills 1977). During World War II, the United States Bureau of Mines drilled several holes as part of
the Defense Minerals Program (Mills 1977). Goldfield Consolidated acquired the mine/mill, the date
unknown, and mined by open-pit the area prospected by Anderson, drilled out a portion of the ore body
adjacent to the pit, and initiated mechanized development (Mills 1977). American Zinc Lead and
Smelting Company purchased the mine/mill from Goldfield Consolidated in 1964 and entered into
production in 1966 (Battien 1998; Mills 1977). By 1965-1966, a 1,200 ton floatation mill for lead, silver,
and zinc had been built (Battien 1998). In addition to the floatation mill, another mill, shops, and
warehouses were constructed (Battien 1998). The mine/mill operated until 1968 (Derkey et al. 1990).
The mine/mill closed because of depressed metal prices and diminishing ore reserves after extraction of
nearly a million tons of ore (Mills 1977). Historical ownership information from 1968 to the present is
unknown.

6.30.3	Mine/Mill Description/Features

The Anderson Calhoun Mine/Mill is situated on the west side of Deep Creek approximately
1 mile north of Leadpoint. The mine/mill lies in the middle dolomite unit of the Metaline Formation.
Ore minerals occur disseminated in limestone. The ore bodies range up to 80 feet wide, 80 feet high, and
650 feet long (Derkey et al. 1990). Production is from open pit mining. (Huntting 1956)

6.30.4	START-2 Mine/Mill Visit

On September 11 and 13, 2001, the START-2 visited the Anderson Calhoun Mine/Mill and
conducted a visual inspection of the property and surrounding area (Figure 6-37; Appendix A, Photos
35-1 through 38-10, 44-15 through 46-3, 46-11 through 46-12; Appendix B, Tearn 2 Phase 2, Pages 14
through 19, 22 and Tearn 1 Phase 2, Page 10). The mine/mill area consisted of a tailings pile measuring
555 feet by 500 feet by unknown depth. The tailings pile was located adjacent to the gated entrance road
and on the western portion of the property. The ST ART -2 noted 4x4 vehicle and bicycle tracks on the
tailings. A pond is located on the tailings pile and sporadic vegetation also was noted on the tailings. To
the north of the tailings pile, an evaporation pond was noted measuring 105 feet by 50 feet. A pipe was
protruding from the southern portion of the evaporation pond into the pond. No liner was present and the
vegetation surrounding the evaporation pond was stressed.

To the east of the tailings pile a waste rock pile was located underneath the waste rock conveyor
belt measuring 120 feet by 80 feet by 20 feet deep. The waste rock conveyor belt was connected to the

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mine building, the floatation building, and the waste rock storage bin. The mine building measured
25 feet in width by 15 feet in length by 20 feet in height. The conveyor belt attached to the floatation
building measured 35 feet in length. The floatation building measured 25 feet in width by 15 feet in
length by 10 feet in height. The waste rock storage bin measured 15 feet in width by 15 feet in length by
40 feet in height.

The mill building was located north of the mine building and measured 50 feet in width by
75 feet in length by 40 feet in height. The mill building contained staged reagent and unknown drums,
floatation tanks, and a crusher. Approximately 100 55-gallon steel drums were staged in the east corner
of the mill building. Many of these unmarked drums were punctured with bullets with the contents
spilling onto the concrete foundation. The unknown spilled contents were solidified. The concrete floor
did not appear to be breached. Tailings were scattered throughout the mill building. A portal measuring
10 feet by 10 feet was located on the western portion of the mill building with a conveyor belt leading
into the building.

A first aid room of wood construction was located southwest of the mill building and adjacent to
the conveyor belt extending from the portal/shaft. The first aid room measured 8 feet in width by 10 feet
in length by 12 feet in height. The conveyor belt extending from the portal/shaft appeared to connect
with the mine building at one point, measuring approximately 110 feet in length.

Remnants of a storage shed and two concrete pads were located between the mine and mill
buildings. The storage shed foundation measured 20 feet by 20 feet. Remnants of "Cebar Barite", a
white cellulose-type material, was scattered throughout the storage shed foundation and surrounding area
including the concrete pads. Five 55-gallon drums were scattered on the storage shed foundation. One
concrete pad measuring 40 feet by 10 feet was located directly east of the dilapidated storage shed. Ten
55-gallon drums were staged on palettes. There was no legible documentation on the drums. The second
concrete pad was located north of the first concrete pad and measured 10 feet by 20 feet. Scrap wood,
steel, and garbage were scattered on both concrete pads.

On the north side of the mill building, three areas of scattered drums intermixed with debris and
equipment were documented. Stained soil with an oil odor were noted around the drums. Cattle prints
were identified in the stained soil. There was a distinct sheen throughout the stained soil area
surrounding the drums.

Transformers were identified in 6 areas. A substation, heavily vandalized, also was documented.
The first area was located east of the dilapidated storage shed and two concrete pads and included a
power line with three transformers. The second area was located adjacent to the south side of the mill

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building and consisted of three transformers staged on concrete pads. The concrete was not
compromised. The third area was located west of the second area and consisted of a fallen power line
with a transformer. The top of the transformer was detached and no staining was noted in the vicinity.
The fourth area was located north of the fallen power line and consisted of a gated area containing a
power line with transformer and 6 transformers staged on concrete. No staining was noted on the
concrete or the surrounding soil. The fifth area was located west of the fourth area and consisted of three
transformers staged on a concrete pad. No staining was noted on the concrete or the surrounding soil.
The sixth area was located to the east of the fourth area and consisted of a power line with a transformer.
The substation was located south of the sixth area and east of the third area and consisted of a partially
gated area with remnant electrical equipment.

On the southern portion of the property and east of the mine/mill entrance, a silo, concrete pad,
and mine pit were located. The mine pit measured approximately 100 feet by 50 feet by unknown depth
and was filled with water.

A stream flowing south extended the entire length of the mine/mill and onto private farmland. A
marshy wetland area was noted on the western portion of the stream and adjacent to the eastern side of
the tailings pile and evaporation pond (PPE 1).

Access to the mine/mill is restricted with a locked gate. Pastures are located adjacent to the
mine/mill on the northern and southern portions. Numerous animal tracks were noted throughout the
property, concentrated in the tailings pile and the stained soil areas. No logging was noted in the vicinity
of the property.

6.30.5 Sampling Locations

Sample locations are depicted in Figure 6-38. Six tailings samples were collected from the two
tailings pile areas: three surface soil samples from the northern portion of the tailings pile (ANTP01SS
through ANTP03SS) and three sediment samples from within the pond located on top of the tailings pile
on the southern portion of the pile (ANTP04SD through ANTP06SD). The samples were collected
within the overland surface water drainage routes identified by the START-2. The samples were
collected to determine potential contamination associated with this source. ANTP01SS through
ANTP03SS appeared to consist of gray silt. ANTP04SD through ANTP06SD appeared to consist of
dark brown to black silt. No odor or staining was noted during sample collection.

Four surface soil samples (ANSS01SS through ANSS04SS) were collected from areas of stained
soil at the mine/mill. The samples appeared to consist of stained black soil with sand and gravel. An

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oily odor and staining were noted during sample collection. ANSSO1SS and ANSS02SS were collected
from the dilapidated storage shed area. ANSS03 SS and ANSS04SS were collected from the stained soil
area located on the northern portion of the mill building.

One surface water sample (ANADO1SW) was collected from the mine pit water located on the
southern portion of the property. The sample was collected within the overland surface water drainage
route identified by the ST ART-2. The sample was collected to determine potential contamination
associated with this source. The sample was clear and blue-green in color. No odor or staining was
noted during sample collection.

A sediment sample (ANPP01SD) was collected at the confluence of the breach of the tailings
pile to the wetlands on the unnamed stream (PPE 1). The sample appeared to consist of silt and sand.
The sample was black and had an organic odor.

6.30.6 Analytical Results

6.30.6.1	Surface Soil Sample Results

The START -2 collected 7 surface soil samples at the Anderson Calhoun Mine/Mill for TAL
metals analyses: three from the tailings pile (ANTP01SS through ANTP03SS) and four from areas of
stained soil (ANSSO 1SSthrough ANSS04SS).

In the tailings samples, significant concentrations of copper ranged from 39.2 mg/kg to
55.0 mg/kg. Significant concentrations of mercury ranged from 0.12 mg/kg to 0.19 mg/kg.

In surface soil samples collected from areas of stained soil, significant concentrations of
cadmium ranged from 124 mg/kg to 129 mg/kg. Significant concentrations of copper ranged from
73.8 mg/kgto 115 mg/kg. Significant concentrations of lead ranged from 2,130 mg/kgto 2,190 mg/kg.
Significant concentrations of mercury ranged from 0.18 mg/kgto 0.35 mg/kg. Significant concentrations
of zinc ranged from 44,900 mg/kg to 49,000 mg/kg. Refer to Table 6-22 for complete data results.

Four surface soil samples collected at the Anderson Calhoun Mine/Mill also were analyzed for
pesticides//PCBs. No significant concentrations were detected.

6.30.6.2	Surface Water Sample Results

The surface water sample collected from the mine pit water (ANADO 1 SW) contained lead at
192 ftg/L and zinc at 1,480 ^ig/L.

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6.30.6.3 Sediment Sample Results

The START-2 collected 4 sediment samples at the Anderson Calhoun Mine/Mill for TAL metals
analyses. The three sediment samples collected from the pond on top of the tailings pile (ANTP04SD,
ANTP05SD, and ANTP06SD) contained significant concentrations of arsenic ranging from 4.3 mg/kg to
10.0 mg/kg, cadmium from 4.7 mg/kg to 7.5 mg/kg, copper from 30.7 mg/kg to 67.4 mg/kg, lead from
317 mg/kg to 320 mg/kg, mercury at a significant concentration of 0.17 mg/kg, and zinc at significant
concentrations ranging from 723 mg/kg to 3,250 mg/kg for zinc. The sediment sample collected at PPE 1
(ANPP01SD) contained elevated concentrations of copper at 23.2 mg/kg and zinc at 343 mg/kg. Refer to
Table 6-23 for complete data results.

6.31 LUC ILE MINE
6.31.1 Mine Location

Latitude:

Longitude:

Legal Description:

CERCLISID:

County:

Contact:

48° 57' 01.08"N
117° 33' 12.24"W

Section 30, Township 40N, Range 42E

WAN001002385

Stevens

Colville National Forest

765 South Main

Colville, Washington 99114

6.31.2 Historical Information and Mine Description/Features

The Lucile Mine is a former cadmium, lead, silver, and zinc mine located on the eastern slope of
the Red Top Mountain in the Northport mining district, Washington. Alternate names include Owen
Mine and Boundary Silver Lead Mine. The mine was reported to have produced 50 tons of ore in 1926,
160 tons in 1948, and 44 tons in 1949 (Huntting 1956). The mine reportedly operated from 1910 to the
late 1940s. The ore deposit consists of irregular mineralized zones in marble associated with quartz veins
and lamprophyre dikes (Huntting 1956). Values are in cadmium, lead, silver, and zinc with zinc of high
quality (Battien 1998).

6.31.3 START-2 Mine Visit

On June 22, 2001, the START -2 visited the Lucile Mine and conducted a visual inspection of the
property and surrounding area (Appendix B, Team 3 Phase 1, Pages 15 and 16). The mine was accessed

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from Forest Service Road 915. The area consisted of a waste rock pile, a collapsed adit, and wood debris
(Appendix A, Photos 12-1, 12-2 and 12-3). The adit was not flowing at the time of the visit. The waste
rock pile measured approximately 500 feet tall by 75 feet by 5 feet deep and was located about 40 feet
from the collapsed adit. The START-2 did not observe any overland drainage routes from the waste rock
pile or adit to surface water. No residents or potential receptors were observed on the property. No
samples were collected at the Lucile Mine.

6.32 IROQUOIS MINE
6.32.1 Mine Location

Latitude:

Longitude:

Legal Description:

CERCLISID:

County:

Contact:

48° 57' 06.12"N
117° 32' 22.92"W

SW% Section 30, Township 40N, Range 42E

WAN0010023 81

Stevens

William Green
Mines Management, Inc.

905 W. Riverside #311
Spokane, Washington 99201
(509) 838-6050

6.32.2 Historical Information

The Iroquois Mine is a former cadmium, lead, silver, and zinc mine (Derkey et al. 1990). The
mine is 8 miles southeast of Boundary and approximately 4 miles by road to Leadpoint, Washington
(Battien 1998). The mine is reported to have produced in 1917, 1928, and 1950 (Derkey et al. 1990).
Mines Management, Inc., of Spokane was owner of the mine and its 17 unpatented claims and 40 acres of
deeded ground in the 1950s (Battien 1998). In 1964 the Bunker Hill Company took a lease on the mine
(Battien 1998). Historical ownership from 1964 to the present is unknown.

6.32.3 Mine Description/Features

The Iroquois Mine is situated about 8 miles southeast of Boundary, Washington. The property
consists of three claims and 120 acres of incorporated land. It was formerly known as the Flannigan
Mine (Weaver 1920). The property is developed by a main lower tunnel driven for a distance of
430 feet. About 290 feet in elevation above the lower tunnel there is an older, upper tunnel driven for

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Ill feet. Approximately 175 feet south of the upper tunnel there is an old glory hole where considerable
galena and lead carbonate ore have been mined. The formation in which the ores occur is a blue to
grayish massive limestone, crushed and faulted and cut by numerous dikes, varying from 2 to 10 inches
in width. In the lower tunnel sphalerite was observed in the limestone near the argillite contact.

(Weaver 1920)

6.32.4	START-2 Mine Visit

On June 22, 2001, the START -2 visited the Iroquois Mine and conducted a visual inspection of
the property and surrounding area (Figure 6-39; Appendix A, Photos 12-5 through 12-17; Appendix B,
Team 3 Phase 1, Pages 16 through 18). The mine area consisted of one waste rock pile measuring
170 feet by 40 feet by 4 feet deep located on the northern portion of the property and northwest of the
unnamed road. South of the unnamed road, the START-2 identified an adit, three buildings, a pile of
wood, and a piece of rail line. The adit measured 3 feet by 5 feet by unknown depth. Adit discharge
flowed northwest in two directions. One path was south through a pipe under the road, around and past
the waste rock pile where it pooled and infiltrated the ground. The second path was over the road into
the waste rock pile. Building 1 measured 10 feet by 15 feet and was located west of the adit. Building 2
measured 20 feet by 50 feet and was located northeast of the adit. Building 3 measured 5 feet by 8 feet
and was located 42 feet northeast of building 2. A pile of untreated timber was located between building
1 and the adit. A loose piece of rail line was located northwest of building 2. No PPEs were identified
by the ST ART-2. Access to the mine is unrestricted. Logging occurs in the vicinity of the mine. No
grazing was observed by the ST ART -2.

6.32.5	Sampling Locations

Sample locations are depicted in Figure 6-40. Two waste rock samples (IRWP01SS and
IRWP02SS) were collected from the waste rock pile. The samples were collected within the overland
surface water drainage routes identified by the START -2. The samples were collected to determine
potential contamination associated with this source. The samples appeared to consist of dark gray sandy
gravel. No odor or staining was noted during sample collection.

Two surface water samples (IRAD01SW and IRAD02SW) were collected from the adit located
on the property. IRAD01SW was collected near the mouth of the adit. IRAD02SW was collected at the
confluence of the adit discharge and the waste rock pile. The samples were collected within the overland
surface water drainage routes identified by the START -2. The samples were collected to determine

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potential contamination associated with this source. The samples appeared to be clear. No odor or
staining was noted during sample collection.

6.32.6 Analytical Results

6.32.6.1 Surface Soil Sample Results

The START -2 collected two surface soil samples from waste rock for TAL metals analyses.
Significant concentrations of cadmium ranged from 33.2 mg/kgto 39.1 mg/kg. Significant
concentrations of mercury ranged from 0.25 mg/kgto 0.49 mg/kg. Significant concentrations of zinc
ranged from 10,000 mg/kgto 12,300 mg/kg. Refer to Table 6-24 for complete data results.

6.32.6.2 Surface Water Sample Results

Analytes detected in surface water samples collected from adit water include zinc at an estimated
concentration of 583 [xg/L.

6.33 SILVER Q UEEN MINE
6.33.1 Mine Location

Latitude:

Longitude:

Legal Description:
CERCLISID:

County:

Contact:

48° 32' 56.90"N
118° 06' 57.60"W

NE% SW% Section 11, Township 35N, Range 37E

WAN001002397

Stevens

United States Department of the Interior
Bureau of Land Management
Spokane District Office
1103 N. Fancher

Spokane, Washington 99212-1275
(509) 536-1200

6.33.2 Historical Information

The Silver Queen Mine is a former lead, silver, and zinc mine located in the Deer Trail district,
Washington. The mine is reported to have produced in 1917, 1928, 1937, 1938, and 1940 (Huntting
1956). Prior owners of the claim are reported to be Silver Basin Mining Company (1902-1924), Seal &
Queen Consolidated Mining Company (1907), Commodore Mines Corporation (1928-1931), Silver
Glance Mines Development Company (1929), Silver Seal Mining Company (1931), Queen & Seel

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Mining Company (1935-1939), and J. G. Glasgow (1941) (Huntting 1956). Further ownership history
from 1941 to the present is unknown.

6.33.3	Mine Description/Features

The Silver Queen Mine is located on the opposite side of a sharp ridge on the Springdale road, at
an elevation of 3,800 feet. The ore consists of white quartz, often iron stained, carrying as its chief value
silver in the forms of argentite and chloride, together with subordinate amounts of galena, pyrite, and
sphalerite. The ore occurs in shoots having a predominating pitch to the northeast. The country rock is a
light colored crystalline dolomite limestone, in places brecciated and silicified. Within one-fourth mile
both east and west of the property are exposures of intrusive granite. (Jenkins 1924)

6.33.4	START-2 Mine Visit

On September 11, 2001, the START-2 visited the Silver Queen Mine and conducted a visual
inspection of the property and surrounding area (Appendix B, Team 2 Phase 2, Pages 8 through 12). The
property is situated on the side of a mountain with an upper slope, middle slope, and lower slope. The
upper slope consisted of four shed-like buildings, an adit, and a power pole (Appendix A, Photos 44-1,
44-2, 44-3, and 44-12). Approximately 4 inches of ponded water was observed in the adit. The adit was
not flowing at the time of the visit and sand bags were observed at the opening of the adit (Appendix A,
Photos 44-4 and 44-11). The area in front of the adit was wet with shallow ponded water for
approximately 10 feet. The middle slope consisted of a mill, a collapsed building, tailings, and a waste
rock pile (Appendix A, Photos 44-5 through 44-8, 44-10 and 44-14). The mill building measured 15 feet
by 15 feet by 25 feet. The tailings at the middle slope were observed to be very fine and silty. The lower
slope consisted of finer tailings. The tailings measured 60 feet by 45 feet by unknown depth. At the
bottom of the lower slope, the road slopes downward to a point where most run-off from the mine
property would flow. At this location is a pump shed with four round concrete structures (Appendix A,
Photo 44-13). The START-2 did not observe any overland drainage routes from the adit, tailings, or
waste rock pile to surface water. Access to the mine was unrestricted. No residents or potential
receptors were observed on the property. No samples were collected at the Silver Queen Mine.

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6.34 MELROSE MINE

6.34.1 Mine Location

Latitude:

Longitude:

Legal Description:

48° 56' 44.52"N
117°38' 45.96"W

CERCLISID:

SW%NW% Section 28, Township 40N, Range 4IE
WAN001002389

County:
Contact:

Mick Vaagen and T rent Lang
Vaagen Brothers Lumber
565 W 5th

Colville, Washington 99114
(509) 684-5071

Stevens

6.34.2	Historical Information

The Melrose Mine is a former copper, lead, silver, and zinc mine located 4 miles south of
Boundary, Washington (Derkey et al. 1990). The mine is reported to have produced between 1913 and
1938 (Derkey et al. 1990). The total yield from 97 tons of ore was 1,255 pounds of copper,
11,176 pounds of lead, and 2,973 ounces of silver (Derkey et al. 1990). Charleston Resources Ltd. took
over the property in 1977 (Battien 1998). Historical ownership information from 1977 to the present is
unknown.

6.34.3	Mine Description/Features

The Melrose Mine ore deposit consists of a 6-foot vein in argillite containing irregular scattered
bunches of ore. Ore minerals include galena, sphalerite, and tetrahedrite. The mine is developed by
1,600 feet of underground workings. (Huntting 1956)

6.34.4	START-2 Mine Visit

On June 18, 2001, the START-2 visited the Melrose Mine and conducted a visual inspection of
the property and surrounding area (Figure 6-41; Appendix A, Photos 14-1 through 14-7; Appendix B,
Team 1 Phase 1, Pages 2 and 3). The mine area consisted of an adit 5 feet by 10 feet by unknown depth.
Moss and algae growth were noted near the mouth of the adit. The adit discharge flowed approximately
40 feet east to an unnamed tributary (PPE 1) that feeds into Tom Bush Creek. The ST ART-2 estimated
the flow of the unnamed tributary at 1 gpm. There were no waste rock piles; however, the entry road
appeared to be constructed out of waste rock. A building approximately 10 feet by 10 feet by 10 feet was

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located to the north of the adit and contained test core samples. Access to the mine was unrestricted and
the START-2 noted garbage left by visitors. No logging or grazing was noted in the vicinity of the mine.

6.34.5 Sample Locations

Sample locations are depicted in Figure 6-42. One surface water sample was collected from the
discharge of water originating at the adit (MLAD01SW). The sample was collected within the overland
surface water drainage route identified by the START-2. The sample was collected to determine
potential contamination associated with this source. The sample was clear. No odor or staining was
noted during sample collection.

One sediment sample was collected at the confluence of the adit water drainage to the unnamed
tributary (PPE 1; MLPP01SD). The sample appeared to consist of brown sand with trave gravel and
organics. No odor or staining was noted during sample collection.

6.34.6 Analytical Results

6.34.6.1 Surface Water Sample Results

Analytes detected in water collected at the adit include zinc at an estimated concentration of
433 /ig/L.

6.34.6.2 Sediment Sample Results

The START-2 collected one sediment sample from the PPE for TAL metals analyses. Cadmium
was detected at an elevated concentration of 22.8 mg/kg and zinc was detected at an elevated
concentration of 1,650 mg/kg. Refer to Table 6-25 for complete data results.

6.35 LAKEVIEW MINE
6.35.1 Mine Location

Latitude:

Longitude:

Legal Description:

CERCLISID:

County:

Contact:

48° 57' 51.84"W
117° 32' 57.12"N

Near center Section 19, Township 40N, Range 42E

WAN001002383

Stevens

Colville National Forest

765 South Main

Colville, Washington 99114

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6.35.2 Historical Information and Mine Description/Features

The Lakeview Mine is a former lead and silver mine located in the Northport mining district on
the north side of Red Top Mountain, Washington. An alternate name is Hazel Mine. The property
reportedly consists of six claims. The ore deposit consists of quartz containing a little galena and some
silver sulphides. Tiny crystals of pyromorphite were also found in the oxidized portion of the ores. The
ore value consists largely of silver (Jenkins 1924).

6.35.3 START-2 Mine Visit

On June 19, 2001, the START-2 visited the Lakeview Mine and conducted a visual inspection of
the property and surrounding area (Appendix B, Tearn 3 Phase 1, Pages 9 and 10). The area was heavily
forested with no signs or visible remnants of mining activity (Appendix A, Photo 10-15). Approximately
a quarter mile north of the mine location an area was observed to be heavily logged and clear cut. The
START-2 did not observe any contaminant source at the property. Access to the mine was unrestricted.
No samples were collected at the Lakeview Mine.

6.36 JACKSON MINE
6.36.1 Mine Location

Latitude:

Longitude:

Legal Description:

CERCLISID:

County:

Contact:

48° 57' 35.64"N
117° 34' 08.04"W

SW%NW% Section 24, Township 40N, Range 4IE

WAN0010023 82

Stevens

Ron Matney

145 Highway 20 East

Colville, Washington 99114

6.36.2 Historical Information and Mine Description/Features

The Jackson Mine is a former copper, lead, silver, and zinc mine located in the Northport mining
district, Washington. The mine reportedly yielded 7 tons of ore (Derkey et al. 1990). The ore deposit is
described as a mineralized quartz vein in argillite 4 to 6 feet in width (Huntting 1956).

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6.36.3 START-2 Mine Visit

On June 25, 2001, the START -2 visited the Jackson Mine and conducted a visual inspection of
the property and surrounding area (Appendix B, Tearn 3 Phase 1, Pages 24 and 25). The START-2 was
accompanied by Ron Matney, the property owner. The area consisted of an adit and a cabin
(Appendix A, Photos 13-1, 13-2, and 13-3). The adit was not flowing at the time of the visit. The area
surrounding the mine was partially logged. The START-2 did not observe any overland drainage route
from the adit to surface water. Access to the mine was unrestricted. No residents or potential receptors
were observed on the property. No samples were collected at the Jackson Mine.

6.37 FRISCO-STANDARD MINE
6.37.1 Mine Location

Latitude:

Longitude:

Legal Description:
CERCLISID:

County:

Contact:

48° 59' 34.80"W
117° 26' 39.48"N

SViNWW Section 12, Township 40N, Range 42E

WAN001002375

Stevens

Charles Shaw
8 B Eagles Nest Drive
LaConnor, Washington 98257

6.37.2 Historical Information

The Frisco-Standard Mine is a former copper, lead, and silver mine located in the Northport
mining district, Washington (Huntting 1956). The property consists of seven patented claims
(Jenkins 1924). Several buildings, including a cookhouse, cabin, and a mill, were to be listed as holdings
of Frisco-Standard (Battien 1998). In 1943, the mine was operated by the Northport Mining and
Development Company, Inc. A 1965 report states that intermittent exploration had been carried out by
several different lessees, with most values in lead, silver, and copper (Battien 1998). The property is
currently owned by Charles Shaw (Appendix B, Team 3 Phase 1, Page 8).

6.37.3 Mine Description/Features

The Frisco-Standard Mine is located on Jubilee Creek, just south of the U.S.-Canada border
(Derkey et al. 1990). The formation exposed is termed the Fish Creek argillite, and is of probable
Palaeozoic age. A grayish calcareous argillite and a black carbonaceous argillite are the predominating

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varieties of rock exposed (Weaver 1920). The ore deposit consists of quartz veins or lenses up to 7 feet
wide in sheared graphitic schist (Huntting 1956).

6.37.4 START-2 Mine Visit

On June 19, 2001, the START -2 visited the Frisco-Standard Mine and conducted a visual
inspection of the property and surrounding area (Appendix B, Team 3 Phase 1, Pages 8 and 10). The
START-2 observed a waste rock pile, two adits, and one possible exploratory adit (Appendix A, Photos
10-3 through 10-7). None of the adits were flowing at the time of the visit. The waste rock pile
measured approximately 3 feet deep by 25 feet wide by 63 feet in height. The START-2 did not observe
any overland drainage routes from the waste rock pile to surface water. Access to the mine was
unrestricted. No residents or potential receptors were observed on the property. No samples were
collected at the Frisco-Standard Mine.

6.38 MYEERAH MINE
6.38.1 Mine Location

Latitude:

Longitude:

Legal Description:

CERCLISID:

County:

Contact:

48° 59' 26.16"N
117° 27' 14.76"W

E center Section 11, Township 40N, Range 42E

WAN001002390

Stevens

Colville National Forest

765 South Main

Colville, Washington 99114

6.38.2 Historical Information and Mine Description/Features

The Myeerah Mine is a former gold, lead, silver, and zinc mine located in the Northport mining
district, Washington. The mine is reported to have produced in 1926 and 1942. Yield from 21 tons of
ore was 8,175 pounds lead and 288 ounces silver (Derkey et al. 1990). The ore deposit is a 2-foot wide
vein consisting of quartz, sheared slate, and numerous lamprophyre dikes. The vein is reported to be
traceable for about 1,000 feet. The mine is developed by adits and numerous open cuts. (Huntting 1956)

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6.38.3 START-2 Mine Visit

On June 19, 2001, the START -2 visited the Myeerah Mine and conducted a visual inspection of
the property and surrounding area (Appendix B, Team 3 Phase 1, Pages 8 through 10). The mine area
consisted of a dilapidated metal shed with a collapsed adit inside, and two waste rock piles (Appendix A,
Photos 10-8 through 10-12). The collapsed adit was not flowing at the time of the visit. One waste rock
pile located north and across the road from the dilapidated shed measured 2 feet deep by 20 feet wide by
20 feet in height. The second waste rock pile measuring 10 feet by 10 feet by 2 feet deep was located
west of the dilapidated shed (Appendix A, Photo 10-12). Signs posted on the shed included "Danger
Forest Service abandoned mine hazard: sign P61-23"; "Keep out Pure Luck Mining Claim"; and
"Work-current, August 1992, August 1996, August 1997". The START-2 did not observe any overland
drainage routes from the adit or waste rock piles to surface water. Access to the shed and adit was
restricted by a locked metal door. No residents or potential receptors were observed on the property. No
samples were collected at the Myeerah Mine.

6.39 UNITED TREASURE MINE
6.39.1 Mine Location

6.39.2 Historical Information

The United Treasure Mine is a former copper, gold, lead, silver, and zinc mine located in the
Northport mining district, Washington (Weaver 1920). The mine was reported to have produced 62 tons
of ore in 1917, 2 tons in 1933, and some production in 1953 (Huntting 1956). Considerable high-grade
ore, more or less oxidized, was mined and shipped and packed out by horses to the railroad at Boundary,
Washington (Weaver 1920). Still making shipments in 1933, and up to 1953, the United Treasure Mine
was owned by Singlejack Silver Mining Exploration Company (Battien 1998). Additional historical
ownership information is unknown.

Latitude:

Longitude:

Legal Description:

County:
Contact:

CERCLISID:

48° 59' 21.48"N
117° 27' 51.12"W

Near center Section 11, Township 40N, Range 42E

WAN001002399

Stevens

Colville National Forest

765 South Main

Colville, Washington 99114

10:START-2\01020028\S759

6-77


-------
6.39.3	Mine Description/Features

The United Treasure Mine is situated on the east side of Fish Creek (Huntting 1956). The
formation exposed is a very dark-colored silicified carbonaceous argillite which has been greatly broken
by fractures and cross fractures. The vein is composed of a quartz gangue containing copper, lead, and
zinc minerals carrying silver. The mineralized zone varies in thickness from a few inches to 30 inches
(Weaver 1920).

6.39.4	START-2 Mine Visit

On June 20, 2001, the START -2 visited the United Treasure Mine and conducted a visual
inspection of the property and surrounding area (Appendix B, Team 3 Phase 1, Pages 12 and 13). The
mine area consisted of three adits and a waste rock pile (Appendix A, Photos 10-23 and 10-24). The
adits were not flowing at the time of the visit. The adit openings measured 8 feet by 6 feet, 7 feet by

4	feet, and 5 feet by 2 feet, respectively. The waste rock pile measured approximately 2 feet long by

5	feet wide by 1 foot deep. The START-2 did not observe any overland drainage routes from the adits or
waste rock pile to surface water. Access to the mine was unrestricted. No residents or potential
receptors were observed on the property. No samples were collected at the United Treasure Mine.

10:START-2\01020028\S759

6-78


-------


Table 6-1





DAISY MINE

SURFACE SOIL SAMPLES ANALYTICAL RESULTS SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS
PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS
STEVENS COUNTY, WASHINGTON

EPA Sample ID

01374163

01374164

01374165

01374166

CLP Inorganic ID

MJ0KH2

MJ0KH3

MJ0KH4

MJ0KH5

CLP Organic ID

NU

NU

NU

NU

E&E Sample ID

NU

NU

NU

NU

Station Location

DTBK01SS

DTTP01SS

DTTP02SS

DTTP03SS

Sample Depth (inches)

0-6

0-6

0-6

0-6

Description

Background

Tailings Pile

TAL Metals (mg/kg)

Aluminum

18100

3370

8130

4700

Arsenic

68.2

64.3

233

20.4

Barium

168

70.4

34.6 JB

73.5

Beryllium

0.89 JB
(1.06 SQL)

JJ.

12.

0.30 JB

Cadmium

4.8

7.8

9.7

0.52 JB

Calcium

5420

245000

38400

7950

Chromium

13.9

6.4

19.1

12.0

Cobalt

14.7

9.4 JB

12.5

4.3 JB

Copper

55.2

137

121

19.6

Iron

25200

23900

30500

12500

Lead

183

70.9

69.3

12.1

Magnesium

4110

6040

7710

2840

Manganese

1070

360

655

236

Mercury

0.06 JB
(0.11 SQL)

0.42

2S

0.05 U

Nickel

16.1

23.5

67.0

20.2

Potassium

1300 JK

1230 JK

1820 JK

1180 JK

Selenium

1.5 JL

3.0 JL

5.9 JL

0.68 UJL

Silver

6.7

2.3

4.6

0.94 JB

Vanadium

41.9

16.3

87.5

35.3

Zinc

462

649

990

76.1

Note:	Bold type indicates sample concentration is above the detection limit.

Underlined type indicates the sample results is significant as defined in Section 5.

Key:

B	= The reported concentration is between the instrument detection limit and the contract required detection limit.

BK	= Background.

CLP	= Contract Laboratory Program.

DT	= Daisy Mine.

E & E	= Ecology and Environment, Inc.

EPA	= United States Environmental Protection Agency.

ID	= Identification.

J	= The analyte was positively identified. The associated numerical value is an estimate.

K	= Unknown bias.

L	= Low bias.

mg/kg	= Milligrams per kilogram.

NU	= Not utilized.

SQL	= Sample quantitation limit.

SS	= Surface soil.

TAL	= Target Analyte List.

TP	= Tailings pile.

U	= The analyte was not detected. The associated numerical value is the contract required detection limit.

6-79


-------


Table 6-2



DAISY MINE
SEDIMENT SAMPLES
ANALYTICAL RESULTS SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS
PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS
STEVENS COUNTY, WASHINGTON

EPA Sample ID



01374161

CLP Inorganic ID



MJ0KH0

CLP Organic ID



J0KH0

E & E Sample ID



01090426

Station Location



DTPP01SD

Sample Depth (inches)



0-6

Description

Background

PPE 1

TAL Metals (mg/kg)

Aluminum

20200

11100

Arsenic

13.0

17.8

Barium

450

181

Cadmium

3.4

0.35 JB

Calcium

109000

5490

Chromium

32.3

14.0

Cobalt

11.9

5.7 IB

Copper

69.3

21.6

Iron

27900

14700

Lead

124

17.0

Magnesium

33500

3220

Manganese

673

352

Nickel

31.9

20.9

Potassium

3920 JK

2550 JK

Vanadium

47.4

42.5

Zinc

239

105

Pesticide/PCBs (|ig/kg)

Endrin Ketone

4.0

3.4 U

Note:	Bold type indicates sample concentration is above the detection limit.

Key:

B	= The reported concentration is between the instrument detection limit and the contract required detection limit.

CLP	= Contract Laboratory Program.

DT	= Daisy Mine.

E & E	= Ecology and Environment, Inc.

EPA	= United States Environmental Protection Agency.

ID	= Identification.

J	= The analyte was positively identified. The associated numerical value is an estimate.

K	= Unknown bias.

mg/kg	= Milligrams per kilogram.

jug/kg	= Micrograms per kilogram.

PCBs	= Polychlorinated biphenyls.

PPE	= Probable point of entry.

SD	= Sediment.

TAL	= Target Analyte List.

U	= The analyte was not detected. The associated numerical value is the contract required detection limit.

6-80


-------


Table 6-3



L-BAR/NORTHWEST MAGNESITE
SEDIMENT SAMPLES ANALYTICAL RESULTS SUMMARY

UPPER COLUMBIA RIVER MINES AND MILLS
PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS
STEVENS COUNTY, WASHINGTON

EPA Sample ID

01374104

01374103

01374102

CLP Inorganic ID

MJ0KC4

MJ0KC3

MJ0KC2

CLP Organic ID

J0KC4

J0KC3

J0CK2

E & E Sample ID

01090404

01090403

01090402

Station Location

LBBK01SD

LBDT03SD

LBDT02SD

Sample Depth (inches)

0-8

0-8

0-8

Description

Background

PPE 1

PPE 2

TAL Metals (mg/kg)

Aluminum

20200

16600 JK

19100 JK

Arsenic

12.1

7.0 JB

11.2 JB

Barium

450

164 JB

195 JB

Cadmium

3.4

0.71 UJK

1.3 JB

Calcium

39600

6330 JK

16000 JK

Chromium

32.3

21.4 JK

28.1 JK

Cobalt

11.9

7.6 JB

9.7 JB

Copper

69.3

45.3 JK

62.1 JK

Iron

27900

19600 JK

23600 JK

Lead

124

43.1 JK

49.4 JK

Magnesium

33500

22900 JK

38400 JK

Manganese

673

310 JK

784 JK

Mercury

0.10 IB
(0.10 SQL)

R

R

Nickel

31.9

21.9 JB

26.3 JB

Potassium

3920 JK

27900 JK

31600 JK

Selenium

0.7 UJK

18.0 JK

15.9 JK

Vanadium

47.4

29.4 JB

32.3 JB

Zinc

239

140

218 JK

Note:	Bold type indicates sample concentration is above the detection limit.

Underlined type indicates the sample results is significant as defined in Section 5.

Key:

B	= The reported concentration is between the instrument detection limit and the contract required detection lii

BK	= Background.

CLP	= Contract Laboratory Program.

DT	= Ditch.

E & E	= Ecology and Environment, Inc.

EPA	= United States Environmental Protection Agency.

ID	= Identification.

J	= The analyte was positively identified. The associated numerical value is an estimate.

K	= Unknown bias.

LB	= L-Bar/Northwest Magnesite.

mg/kg	= Milligrams per kilogram.

R	= The data are unusable for all purposes.

SD	= Sediment.

SQL	= Sample quantitation limit.

TAL	= Target Analyte List.

U	= The analyte was not detected. The associated numerical value is the contract required detection limit.

6-81


-------


Table 6-4



NORTHWEST ALLOYS



SEDIMENT SAMPLES ANALYTICAL RESULTS SUMMARY

UPPER COLUMBIA RIVER MINES AND MILLS

PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON

EPA Sample ID

01374108

01374107

CLP Inorganic ID

MJ0KC8

MJ0KC7

CLP Organic ID

J0KC8

J0KC7

E & E Sample ID

01090408

01090407

Station Location

NABK01SD

NADT01SD

Sample Depth (inches)

0-8

0-8

Description

Background

Ditch near PPE 1

TAL Metals (mg/kg)

Aluminum

2080

8420

Arsenic

1.1 UJK

4.9

Barium

34.0 JB

170



(48.8 SQL)



Calcium

2730

26100

Chromium

5.4

10.8

Copper

2.8 IB

18.7



(6.1 SQL)



Iron

5590

11300

Lead

2.0

7.5

Magnesium

1430

4000

Manganese

91.7

311

Nickel

3.6 IB

10.9



(9.8 SQL)



Potassium

605 JB

1540 JK

Vanadium

8.9 JB

16.3



(12.2 SQL)



Zinc

10.8

47.9

Note:	Bold type indicates sample concentration is above the detection limit.

Key:

B	= The reported concentration is between the instrument detection limit and the contract

required detection limit.

BK	= Background.

CLP	= Contract Laboratory Program.

DT	= Ditch.

E & E	= Ecology and Environment, Inc.

EPA	= United States Environmental Protection Agency.

ID	= Identification.

J	= The analyte was positively identified. The associated numerical value is an estimate.

K	= Unknown bias.

mg/kg	= Milligrams per kilogram.

NA	= Northwest Alloys.

SD	= Sediment.

SQL	= Sample quantitation limit.

TAL	= Target Analyte List.

U	= The analyte was not detected. The associated numerical value is the contract required
detection limit.

6-82


-------


Table 6-5



NAPOLEON MINE/MILL
SEDIMENT SAMPLES
ANALYTICAL RESULTS SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS
PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS
STEVENS COUNTY, WASHINGTON

EPA Sample ID

01374114

01374113

CLP Inorganic ID

MJ0KD5

MJ0KD4

CLP Organic ID

J0KD4

J0KD3

E & E Sample ID

01090413

01090412

Station Location

NPBK01SD

NPPP01SD

Sample Depth (inches)

0-8

0-8

Description

Background

PPE 1

TAL Metals (mg/kg)

Aluminum

6980

8790

Arsenic

13.0

26.8

Barium

83.2

96.1

Calcium

56700

6340

Chromium

22.0

17.3

Copper

47.6

207

Iron

20300

36000

Lead

13.1

25.5

Magnesium

4660

3490

Manganese

293

190

Nickel

18.9

25.1

Potassium

899 JB

1430 JK

Silver

1.1 JB
(2.1 SQL)

23

Vanadium

25.8

31.0

Zinc

62.2

77.6

Note: Bold type indicates sample concentration is above the detection limit.

Underlined type indicates the sample results is significant as defined in Section 5.

Key:

B	= The reported concentration is between the instrument detection limit and the contract required detection limit.

BK	= Background.

CLP	= Contract Laboratory Program.

E & E	= Ecology and Environment, Inc.

EPA	= United States Environmental Protection Agency.

ID	= Identification.

J	= The analyte was positively identified. The associated numerical value is an estimate.

K	= Unknown bias.

mg/kg	= Milligrams per kilogram.

NP	= Napoleon Mine/Mill.

PPE	= Probable point of entry.

SD	= Sediment.

SQL	= Sample quantitation limit.

TAL	= Target Analyte List.

6-83


-------








Table 6-6











VAN STONE MINE/MILL
SURFACE SOIL SAMPLES ANALYTICAL RESULTS SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON



EPA Sample ID



01254196

01254197

01254198

01254199

01254200

01254201

01254202

01254203

01254204

CLP Inorganic ID



MJ0GJ5

MJ0GJ6

MJ0GJ7

MJ0GJ8

MJ0GJ9

MJ0GK0

MJ0GK1

MJ0GK2

MJ0GK3

CLP Organic ID



NU

NU

NU

NU

NU

NU

NU

NU

NU

E & E Sample ID



NU

NU

NU

NU

NU

NU

NU

NU

NU

Station Location



VSWP01SS

VSWP02SS

VSWP03SS

VSWP04SS

VSWP05SS

VSWP06SS

VSWP07SS

VSWP08SS

VSWP09SS

Sample Depth (Inches)



0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6

Description

Background

Waste Rock Pile

TAL Metals (mg/kg)

Aluminum

18100

5640

3670

1600

2900

1230

1150

406

1150

2970

Antimony

1.5 JB
(15.1 SQL)

2.0 JB

0.61 UJK

1.1 JB

2.1 JB

2.2 JB

3.0 JB

14.5

1.3 JB

1.3 JB

Arsenic

68.2

42.3

5.4

17.5

43.8

3.7 U

14.9

5.9

12.7

11.6

Barium

548

47.6

31.4 JB

17.5 JB

50.0

113

21.3 JB

62.0

16.4 JB

24.2 JB

Beryllium

0.48 JB
(6.3 SQL)

0.98 JB

0.25 JB

0.40 JB

0.27 JB

0.15 JB

0.08 JB

0.07 JB

0.15 JB

0.51 JB

Cadmium

7.8

41.4

15.4

10.5

38.8

69.7

124

234

33.7

27.9

Calcium

118000

90300

44800

146000

55300

125000

85000

127000

144000

114000

Chromium

29.0

7.1

2.4

1.7 JB

1.7 JB

1.0 JB

0.87 JB

0.46 JB

1.1 JB

2.1 JB

Cobalt

8.6 JB
(63 SQL)

2.3 JB

1.5 JB

0.54 JB

1.2 JB

0.52 JB

1.5 JB

0.25 JB

0.28 JB

1.4 JB

Copper

55.2

12.5

4.9 JB

7.3

6.2 JL

1.9 JB

7.8 JL

2.5 JB

5.4 JL

4.3 JB

Iron

25200

22600 JK

8710 JK

10800 JK

17100

7450

15300

12000

13600

7180

Lead

183

1830

286

204

2080

12100

6090

76500

359

47.4

Magnesium

17900

68200

33500

102000

34100

74200

46200

68400

107000

76100

Manganese

1370

822

236

407

278

207

202

227

302

472

Mercury

0.06 JB
(0.11 SQL)

1.3 JL

0.08 JB

0.32 JL

L5

0.38

0.84

0.29

0.26

0.05 U

Nickel

58.4

13.7

4.5 JB

3.8 JB

3.8 JB

2.3 JB

3.8 JB

2.1 JB

5.6 JB

7.1 JB

Potassium

11660

942 JB

806 JB

278 JB

1240

477 JB

270 JB

162 JB

198 JB

537 JB

Selenium

1.5 JL

0.71 U

0.69 U

0.79 JB

0.70 U

0.70 U

0.71 U

0.69 U

0.69 U

0.71 U

Silver

6.7

0.94 JB

0.44 JB

0.53 JB

0.83 JB

0.88 JB

1.9 JB

4.4

0.5 JB

0.17 U

Sodium

3308 JB

377 JB

314 JB

202 JB

153 JB

332 JB

690 JB

1190

124 JB

111 JB

Thallium

1.4 U

0.81 U

0.79 U

0.79 U

0.81 U

0.80 U

0.82 U

0.79 U

0.79 U

1.1 JB

Vanadium

51.2

21.1

12.2

6.9 JB

11.1

5.0 JB

4.0 JB

2.3 JB

7.8 JB

7.0 JB

Zinc

835

20600 JK

15000 JK

5920 JK

10800

19500

45800

68000

5960

3660

Page 1 of 9

6-84


-------








Table 6-6











VAN STONE MINE/MILL
SURFACE SOIL SAMPLES ANALYTICAL RESULTS SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON



EPA Sample ID



01254196

01254197

01254198

01254199

01254200

01254201

01254202

01254203

01254204

CLP Inorganic ID



MJ0GJ5

MJ0GJ6

MJ0GJ7

MJ0GJ8

MJ0GJ9

MJ0GK0

MJ0GK1

MJ0GK2

MJ0GK3

CLP Organic ID



NU

NU

NU

NU

NU

NU

NU

NU

NU

E & E Sample ID



NU

NU

NU

NU

NU

NU

NU

NU

NU

Station Location



VSWP01SS

VSWP02SS

VSWP03SS

VSWP04SS

VSWP05SS

VSWP06SS

VSWP07SS

VSWP08SS

VSWP09SS

Sample Depth



0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6

Description

Background

Waste Rock Pile

SV OCs (ng/kg)

9H-Carbazole

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

9H-Fluorene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Acenaphthene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Acenaphthylene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Anthracene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Benzo(a)anthracene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Benzo(a)pyrene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Benzo(g,h,i)perylene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Benzo [b] Fluoranthene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Benzo [k] fluoranthene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Chrysene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Dibenzo[a,h]anthracene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Dibenzofuran

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Di-n-octylphthalate

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Indeno( 1,2,3-cd)pyrene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Isophorone

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Naphthalene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Naphthalene, 2-methyl-

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Phenanthrene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Pyrene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

6-85

Page 2 of 9


-------








Table 6-6











VAN STONE MINE/MILL
SURFACE SOIL SAMPLES ANALYTICAL RESULTS SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON



EPA Sample ID



01254205

01254206

01254207

01254312

01254315

01254316

01254317

01254318

01254319

CLP Inorganic ID



MJ0GK4

MJ0GK5

MJ0GK6

MJ0EW6

MJ0EW9

MJ0EX0

MJ0EX1

MJ0EX8

MJ0EX3

CLP Organic ID



NU

NU

NU

NU

NU

NU

NU

NU

NU

E & E Sample ID



NU

NU

NU

NU

NU

NU

NU

NU

NU

Station Location



VSWP10SS

VSWP11SS

VSWP12SS

VSTP21SS

VSTP01SS

VSTP02SS

VSTP03SS

VSTP04SS

VSTP05SS

Sample Depth (Inches)



0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-4

Description

Background

Waste Rock Pile

Tailings Pile

TAL Metals (mg/kg)

Aluminum

18100

3610

12100

796

148

3580

11100

8370

755

12000

Antimony

1.5 JB
(15.1 SQL)

0.91 JB

0.64 U

1.4 JB

1.2 UJK

1.1 UJK

1.1 UJK

0.88 UJK

0.74 JB

1.4 UJK

Arsenic

68.2

5.2

4.3 U

10.8

4.2 U

15.1

6.8

5.7 U

8.4

6.3 U

Barium

548

97.4

130

26.4 JB

73.1

71.0

158

127

27.7 JB

241

Beryllium

0.48 JB
(6.3 SQL)

0.33 JB

1.6

0.07 JB

0.04 U

0.12 JB

0.46 JB

0.35 JB

0.04 U

0.39 JB

Cadmium

7.8

10.1

5.5

15.0

8.6

7.3

1.9

2.4

7.6

3.2

Calcium

118000

45800

7580

155000

134000

72800

16000

10100

81400

24200

Chromium

29.0

3.6

1.3 JB

0.86 JB

8.7

3.0

12.9

10.1

1.8 JB

6.8

Cobalt

8.6 JB
(63 SQL)

2.0 JB

3.9 JB

0.22 U

0.24 U

1.0 JB

5.0 JB

5.4 JB

0.31 JB

2.9 JB

Copper

55.2

4.8 JB

8.5 JL

5.7

76.2 JL

27.4 JL

26.9 JL

23.1 JL

23.4 JL

22.6 JL

Iron

25200

8720

14300

34000 JK

4950

8940

16300

12700

7340

11200

Lead

183

1610

7.4

1520

4710

283

81.7

74.3

257

119

Magnesium

17900

26700

8730

96700

81600

40100

10500

6800

45000

12900

Manganese

1370

290

410

226

135

210

315

318

113

476

Mercury

0.06 JB
(0.11 SQL)

0.52

0.05 U

0.08 JB

0.09 JB

0.07 JB

0.06 U

0.06 U

0.09 JB

0.06 U

Nickel

58.4

3.8 JB

5.9 JB

10.7

2.6 JB

4.8 JB

17.1

13.6

3.4 JB

10.5

Potassium

11660

891 JB

2380

267 JB

123 JB

598 JB

2930

2250

250 JB

1370

Selenium

1.5 JL

0.69 U

0.73 U

0.68 U

0.73 U

0.76 U

0.78 U

0.77 U

0.68 U

0.85 U

Silver

6.7

0.25 JB

0.28 JB

0.27 JB

0.36 JB

0.32 JB

0.51 JB

0.51 JB

0.22 JB

0.40 JB

Sodium

3308 JB

121 JB

54.0 JB

157 U

186 U

286 JB

282 JB

261 JB

230 JB

341 JB

Thallium

1.4 U

0.79 U

0.84 U

0.78 U

0.91 U

0.87 U

0.89 U

0.89 U

0.78 U

0.97 U

Vanadium

51.2

13.9

20.6

5.2 JB

1.9 JB

7.6 JB

45.2

33.1

4.1 JB

20.5

Zinc

835

3450

4950

6340 JK

2430

2770

813

907

2920

1100

Page 3 of 9

6-86


-------








Table 6-6











VAN STONE MINE/MILL
SURFACE SOIL SAMPLES ANALYTICAL RESULTS SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON



EPA Sample ID



01254205

01254206

01254207

01254312

01254315

01254316

01254317

01254318

01254319

CLP Inorganic ID



MJ0GK4

MJ0GK5

MJ0GK6

MJ0EW6

MJ0EW9

MJ0EX0

MJ0EX1

MJ0EX8

MJ0EX3

CLP Organic ID



NU

NU

NU

NU

NU

NU

NU

NU

NU

E & E Sample ID



NU

NU

NU

NU

NU

NU

NU

NU

NU

Station Location



VSWP10SS

VSWP11SS

VSWP12SS

VSTP21SS

VSTP01SS

VSTP02SS

VSTP03SS

VSTP04SS

VSTP05SS

Sample Depth



0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-4

Description

Background

Waste Rock Pile

Tailings Pile

SV OCs (ng/kg)

9H-Carbazole

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

9H-Fluorene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Acenaphthene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Acenaphthylene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Anthracene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Benzo(a)anthracene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Benzo(a)pyrene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Benzo(g,h,i)perylene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Benzo [b] Fluoranthene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Benzo [k] fluoranthene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Chrysene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Dibenzo[a,h]anthracene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Dibenzofuran

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Di-n-octylphthalate

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Indeno( 1,2,3-cd)pyrene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Isophorone

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Naphthalene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Naphthalene, 2-methyl-

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Phenanthrene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Pyrene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

6-87

Page 4 of 9


-------








Table 6-6











VAN STONE MINE/MILL
SURFACE SOIL SAMPLES ANALYTICAL RESULTS SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON



EPA Sample ID



01254320

01254321

01254322

01254323

01254331

01254332

01254333

01254334

01254335

CLP Inorganic ID



MJ0EX4

MJ0EX5

MJ0EX6

MJ0EX7

MJ0EY5

MJ0EY6

MJ0EY7

MJ0EY8

MJ0EY9

CLP Organic ID



NU

NU

NU

NU

NU

NU

NU

NU

NU

E & E Sample ID



NU

NU

NU

NU

NU

NU

NU

NU

NU

Station Location



VSTP06SS

VSTP07SS

VSTP08SS

VSTP09SS

VSTP10SS

VSTP11SS

VSTP12SS

VSTP13SS

VSTP14SS

Sample Depth (Inches)



0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6

Description

Background

Tailings Pile

TAL Metals (mg/kg)

Aluminum

18100

12300

11700

12200

13500

4640

8870

3760

1610

2220

Antimony

1.5 JB
(15.1 SQL)

1.7 JB

1.6 JB

0.85 JB

0.76 UJK

0.62 UJK

1.1 JB

0.86 JB

0.62 JB

0.59 U

Arsenic

68.2

4.5 U

5.2 U

4.2 U

4.8 U

3.3 U

3.0 U

0.96 JB

2.6

0.96 JB

Barium

548

321

244

241

261

93.9

86.8

54.3

18.6 JB

26.2 JB

Beryllium

0.48 JB
(6.3 SQL)

0.40 JB

0.36 JB

0.38 JB

0.41 JB

0.19 JB

0.26 JB

0.15 JB

0.08 JB

0.10 JB

Cadmium

7.8

1.0 JB

3.0

1.5

0.59 JB

4.9

5.2

0.67 JB

5.2

0.24 U

Calcium

118000

4320

21000

7580

3540

28100

21000

4750 JL

33200 JL

1470 JL

Chromium

29.0

7.5

6.3

7.1

6.8

2.4

3.7

2.5

1.9 JB

2.0 JB

Cobalt

8.6 JB
(63 SQL)

3.3 JB

2.6 JB

2.8 JB

3.2 JB

1.9 JB

1.8 JB

1.4 JB

0.52 JB

1.8 JB

Copper

55.2

11.1 JL

18.1 JL

14.1 JL

10.4 JL

25.3 JL

23.6 JL

5.4

11.2

3.0 JB

Iron

25200

10400

10900

10500

10400

9150

10600

5200

5090

4060

Lead

183

35.9

109

51.2

18.8

167

143

32.7

87.3

10.7

Magnesium

17900

2320

11000

4150

1960

18000

13300

3200 JL

18000 JL

1230 JL

Manganese

1370

675

427

429

506

420

287

260 JH

97.8 JH

94.3 JH

Mercury

0.06 JB
(0.11 SQL)

0.06 U

0.06 U

0.06 U

0.06 U

0.07 JB

0.06 JB

0.05 U

0.08 JB

0.05 U

Nickel

58.4

11.5

9.6

10.0

9.1 JB

2.4 JB

4.3 JB

2.4 JB

1.9 JB

1.6 JB

Potassium

11660

1520

1170 JB

1510

1420

1550

1030 JB

734 JB

454 JB

649 JB

Selenium

1.5 JL

0.79 U

0.80 U

0.78 U

0.87 U

0.70 U

0.77 U

0.70 UJK

0.70 UJK

0.69 UJK

Silver

6.7

0.5 JB

0.47 JB

0.48 JB

0.56 JB

0.26 JB

0.46 JB

0.14 U

0.23 U

0.10 U

Sodium

3308 JB

272 JB

309 JB

286 JB

325 JB

203 JB

261 JB

193 JB

164 U

184 JB

Thallium

1.4 U

0.90 U

0.92 U

0.89 U

0.99 U

0.80 U

0.89 U

1.0 U

1.1 U

1.0 U

Vanadium

51.2

22.3

19.7

23.1

20.3

14.2

15.6

8.8 JB

5.5 JB

8.4 JB

Zinc

835

150

1100

565

121

2100

2610

341

2260

106

Page 5 of 9

6-88


-------








Table 6-6











VAN STONE MINE/MILL
SURFACE SOIL SAMPLES ANALYTICAL RESULTS SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON



EPA Sample ID



01254320

01254321

01254322

01254323

01254331

01254332

01254333

01254334

01254335

CLP Inorganic ID



MJ0EX4

MJ0EX5

MJ0EX6

MJ0EX7

MJ0EY5

MJ0EY6

MJ0EY7

MJ0EY8

MJ0EY9

CLP Organic ID



NU

NU

NU

NU

NU

NU

NU

NU

NU

E & E Sample ID



NU

NU

NU

NU

NU

NU

NU

NU

NU

Station Location



VSTP06SS

VSTP07SS

VSTP08SS

VSTP09SS

VSTP10SS

VSTP11SS

VSTP12SS

VSTP13SS

VSTP14SS

Sample Depth



0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6

Description

Background

Tailings Pile

SV OCs (ng/kg)

9H-Carbazole

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

9H-Fluorene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Acenaphthene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Acenaphthylene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Anthracene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Benzo(a)anthracene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Benzo(a)pyrene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Benzo(g,h,i)perylene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Benzo [b] Fluoranthene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Benzo [k] fluoranthene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Chrysene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Dibenzo[a,h]anthracene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Dibenzofuran

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Di-n-octylphthalate

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Indeno( 1,2,3-cd)pyrene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Isophorone

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Naphthalene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Naphthalene, 2-methyl-

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Phenanthrene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Pyrene

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

6-89

Page 6 of 9


-------










Table 6-6















VAN STONE MINE/MILL
SURFACE SOIL SAMPLES ANALYTICAL RESULTS SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON





EPA Sample ID



01254336

01254337

01254338

01254339

01254324

01254325

01254326

01254327

01254328

01254329

01254330

CLP Inorganic ID



MJ0EZ0

MJ0EZ1

MJ0EZ2

MJ0EZ3

MJ0F12

MJ0EX9

MJ0EY0

MJ0EY1

MJ0EY2

MJ0EY3

MJ0EY4

CLP Organic ID



NU

NU

NU

NU

J0EX8

J0EX9

J0EY0

J0EY1

J0EY2

J0EY3

J0EY4

E & E Sample ID



NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Station Location



VSTP15SS

VSTP16SS

VSTP17SS

VSTP18SS

VSSS01SS

VSSS02SS

VSSS03SS

VSSS04SS

VSSS05SS

VSSS06SS

VSSS07SS

Sample Depth (Inches)



0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6

Description

Background

Tailings Pile

Stained Soil

TAL Metals (mg/kg)

Aluminum

18100

3710

146

7560

4950

1480

2740

3970

68.8

431

4230

8810

Antimony

1.5 JB
(15.1 SQL)

0.60 U

1.0 JB

0.61 U

0.67 JB

5.5 JB

2.4 JB

0.70 UJK

113 JL

9.8 JB

1.1 JB

2.0 JB

Arsenic

68.2

1.2 JB

9.6

2.7

0.96 U

16.5

9.7

2.2 U

23.6

42.9

11.3

19.0

Barium

548

38.9 JB

5.2 JB

128

82.5

37 JB

54.3

41.2 JB

1.5 JB

7.2 JB

135

121

Beryllium

0.48 JB
(6.3 SQL)

0.15 JB

0.02 U

0.37 JB

0.18 JB

0.07 JB

0.13 JB

0.18 JB

0.04 U

0.05 U

0.27 JB

0.46 JB

Cadmium

7.8

0.36 JB

14.3

0.86 JB

0.74 JB

702

36.6

1.9

510

940

24.7

8.2

Calcium

118000

2110 JL

84300 JL

5150 JL

8150 JL

37200 JL

55100

12500

1550

6810

99100

26400

Chromium

29.0

2.9

1.3 JB

3.9

2.7

2.2 JB

3.7

3.7

1.2 JB

5.1

3.0

4.7

Cobalt

8.6 JB
(63 SQL)

1.2 JB

0.24 U

3.5 JB

1.5 JB

1 JB

2.1 JB

1.6 JB

0.61 JB

0.89 JB

1.7 JB

3.2 JB

Copper

55.2

3.6 JB

28.7

5.9

5.9

202

461 JL

5.0 JB

73.1 JL

218 JL

7.6 JL

10.8 JL

Iron

25200

5070

6380

12200

7000

32400

15500

7520

31400

75300

11000

16600

Lead

183

16.3

270

25.2

33.8

10900

11000

114

181000

14700

1040

771

Magnesium

17900

1630 JL

44000 JL

5500 JL

5420 JL

22600 JL

32800

8570

2080

5100

68600

20800

Manganese

1370

131 JH

110 JH

388 JH

211 JH

412 JH

267

160

266

659

260

294

Mercury

0.06 JB
(0.11 SQL)

0.05 U

0.17

0.05 U

0.05 U

3.2

0.21

0.05 U

0.05 U

6J

0.15

0.60

Nickel

58.4

2.6 JB

2.5 JB

2.9 JB

2.5 JB

5.1 JB

4.8 JB

2.5 JB

6.0 JB

10.7

4.4 JB

3.5 JB

Potassium

11660

815 JB

122 JB

3090

1180

499 JB

1100 JB

1120 JB

60.0 JB

127 JB

997 JB

2720

Selenium

1.5 JL

0.70 UJK

0.73 UJK

0.71 UJK

0.71 UJK

0.92 UJK

0.88 U

0.79 U

2.0 JH

0.80 U

0.71 U

0.99 U

Silver

6.7

0.13 U

0.29 U

0.28 U

0.23 U

3.3

1.9 JB

0.22 JB

27.1

6.8

0.41 JB

0.44 JB

Sodium

3308 JB

279 JB

286 JB

290 JB

286 JB

6080

296 JB

251 JB

4850

13800

295 JB

256 JB

Thallium

1.4 U

1.0U

1.1 U

1.1 U

1.1 U

1.4 JB

1.0 U

0.91 U

7.8

3.7

0.82 U

1.1 U

Vanadium

51.2

9.0 JB

1.6 JB

24.6

11.1

4.5 JB

11.5 JB

14.6

0.49 JB

2.1 JB

11.8

25.8

Zinc

835

171

5870

432

312

189000

12000

812

164000

431000

5770

3560

6-90

Page 7 of 9


-------










Table 6-6















VAN STONE MINE/MILL
SURFACE SOIL SAMPLES ANALYTICAL RESULTS SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON





EPA Sample ID



01254336

01254337

01254338

01254339

01254324

01254325

01254326

01254327

01254328

01254329

01254330

CLP Inorganic ID



MJ0EZ0

MJ0EZ1

MJ0EZ2

MJ0EZ3

MJ0F12

MJ0EX9

MJ0EY0

MJ0EY1

MJ0EY2

MJ0EY3

MJ0EY4

CLP Organic ID



NU

NU

NU

NU

J0EX8

J0EX9

J0EY0

J0EY1

J0EY2

J0EY3

J0EY4

E & E Sample ID



NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Station Location



VSTP15SS

VSTP16SS

VSTP17SS

VSTP18SS

VSSS01SS

VSSS02SS

VSSS03SS

VSSS04SS

VSSS05SS

VSSS06SS

VSSS07SS

Sample Depth



0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6

Description

Background

Tailings Pile

Stained Soil

SV OCs (ng/kg)

9H-Carbazole

NU

NU

NU

NU

NU

175

145 U

72.8 U

NU

NU

342 U

560 U

9H-Fluorene

NU

NU

NU

NU

NU

794

145 U

72.8 U

NU

NU

342 U

560 U

Acenaphthene

NU

NU

NU

NU

NU

618

145 U

72.8 U

NU

NU

342 U

560 U

Acenaphthylene

NU

NU

NU

NU

NU

25.1 J

145 U

72.8 U

NU

NU

342 U

560 U

Anthracene

NU

NU

NU

NU

NU

779

145 U

72.8 U

NU

NU

342 U

560 U

Benzo(a)anthracene

NU

NU

NU

NU

NU

1440

145 U

8.5 J

NU

NU

342 U

560 U

Benzo(a)pyrene

NU

NU

NU

NU

NU

1680

290 U

146 U

NU

NU

685 U

1120 U

Benzo(g,h,i)perylene

NU

NU

NU

NU

NU

901

145 U

72.8 U

NU

NU

342 U

560 U

Benzo [b] Fluoranthene

NU

NU

NU

NU

NU

654

290 U

146 U

NU

NU

685 U

1120 U

Benzo [k] fluoranthene

NU

NU

NU

NU

NU

983

145 U

72.8 U

NU

NU

342 U

560 U

Chrysene

NU

NU

NU

NU

NU

1650

145 U

72.8 U

NU

NU

342 U

560 U

Dibenzo[a,h]anthracene

NU

NU

NU

NU

NU

140

145 U

72.8 U

NU

NU

342 U

560 U

Dibenzofuran

NU

NU

NU

NU

NU

177

145 U

72.8 U

NU

NU

342 U

560 U

Di-n-octylphthalate

NU

NU

NU

NU

NU

78.8 U

R

72.8 U

NU

NU

342 U

560 U

Indeno( 1,2,3-cd)pyrene

NU

NU

NU

NU

NU

688

290 U

146 U

NU

NU

685 U

1120 U

Isophorone

NU

NU

NU

NU

NU

78.8 U

99.7 J

72.8 U

NU

NU

342 U

560 U

Naphthalene

NU

NU

NU

NU

NU

1030

145 U

72.8 U

NU

NU

342 U

560 U

Naphthalene, 2-methyl-

NU

NU

NU

NU

NU

610

145 U

72.8 U

NU

NU

342 U

560 U

Phenanthrene

NU

NU

NU

NU

NU

5090

145 U

72.8 U

NU

NU

342 U

560 U

Pyrene

NU

NU

NU

NU

NU

4350

145 U

72.8 U

NU

NU

342 U

560 U

6-91

Page 8 of 9


-------
Note:

Key:

B

CLP

E&E
EPA

H
ID

J

K

L

mg/kg
Hg/kg
NU
SQL

ss
ss

SVOCs

TAL

TP

U

vs

WP

Bold type indicates sample concentration is above the detection limit.

Underlined type indicates the sample results is significant as defined in Section 5.

= The reported concentration is between the instrument detection limit and the contract required detection limit.
= Contract Laboratory Program.

= Ecology and Environment, Inc.

= United States Environmental Protection Agency.

= High bias.

= Identification.

= The analyte was positively identified. The associated numerical value is an estimate.

= Unknown bias.

= Low bias.

= Milligrams per kilogram.

= Micrograms per kilogram.

= Not utilized.

= Sample quantitation limit.

= Surface soil.

= Stained soil.

= Semivolatile Organic Compounds.

= Target Analyte List.

= Tailings pile.

= The analyte was not detected. The associated numerical value is the contract required detection limit.
= Van Stone Mine/Mill.

= Waste Rock Pile.

6-92

Page 9 of 9


-------




Table 6-7







VAN STONE MINE/MILL
SEDIMENT SAMPLES ANALYTICAL RESULTS SUMMARY

UPPER COLUMBIA RIVER MINES AND MILLS
PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS
STEVENS COUNTY, WASHINGTON



EPA Sample ID



01254363

01254313
01254340

01254314
01254341

01254361

01254364

CLP Inorganic ID



MJ0FK2

MJ0EW7

MJ0EW8

MJ0FK0

MJ0FK3

CLP Organic ID



J0FJ1

J0EZ4

J0EZ5

J0FK0

J0FJ2

E & E Sample ID



NU

NU

NU

NU

NU

Station Location



VSMW01SD

VSPP01SD

VSPP02SD

VSPP03SD

VSPP04SD

Sample Depth (inches)



6-8

6-8

6-8

6-8

6-8

Description

Background

Mine Pit

PPE 1

PPE 2

PPE 3

PPE 4

TAL Metals (mg/kg)

Aluminum

20200

2070

1140

2010

1970

5440

Arsenic

13.0

3.2 U

9.2

2.1 U

13.8

1.4 U

Barium

450

48.6 JB

41.0 JB

27.8 JB

20.7 JB

86.0

Cadmium

3.4

1.2 IB

6.0

0.07 U

11.9

0.17 JB

Calcium

109000

32000

99300

1030 JB

28200

2800

Chromium

32.3

2.4 IB

1.5 JB

1.7 JB

2.0 JB

2.9 JB

Cobalt

11.9

0.88 JB

0.3 U

0.71 JB

1.1 JB

1.5 JB

Copper

69.3

2.1 JB

23.0 JL

1.5 JB

2.3 JB

3.3 JB

Iron

27900

3730

4460

3710

6300

7560

Lead

124

50.4

466

2.2

124

8.1

Magnesium

33500

17000

56100

709 JB

14400

1410 JB

Manganese

673

120

95.7

192

162

386

Nickel

31.9

2.2 JB

1.7 JB

1.0 JB

2.9 JB

2.6 JB

Potassium

3920 JK

508 JB

265 JB

485 JB

515 JB

847 JB

Vanadium

47.4

6.2 JB

4.4 JB

6.6 JB

10.0 JB

12.7 JB

Zinc

239

526

1960

13.0

3670

112

Pesticide/PCBs (Ug/kg)

Endrin Ketone

4.0

4.0 U

4.4 U

3.7 U

4.1 U

4.6 U

Note: Bold type indicates sample concentration is above the detection limit.

Underlined type indicates the sample results is significant as defined in Section 5.

6-93

Page 1 of2


-------
Key:

B	= The reported concentration is between the instrument detection limit and the contract required detection limit.

CLP	= Contract Laboratory Program.

E & E	= Ecology and Environment, Inc.

EPA	= United States Environmental Protection Agency.

ID	= Identification.

J	= The analyte was positively identified. The associated numerical value is an estimate.

K	= Unknown bias.

mg/kg	= Milligrams per kilogram.

fj.g/kg	= Micrograms per kilogram.

MW	= Mine water.

NU	= Not utilized.

PCBs	= Polychlorinated biphenyls.

PPE	= Probable point of entry.

SD	= Sediment.

TAL	= Target Analyte List.

U	= The analyte was not detected. The associated numerical value is the contract required detection limit.

VS	= Van Stone Mine/Mill.

6-94

Page 2 of 2


-------


Table 6-8







LeROI/NORTHPORT SMELTER



SURFACE SOIL SAMPLES ANALYTICAL RESULTS SUMMARY

UPPER COLUMBIA RIVER MINES AND MILLS



PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS



STEVENS COUNTY, WASHINGTON



EPA Sample ID

01374188

01374182

01374183

01374184

CLP Inorganic ID

MJ0KK8

MJ0KK0

MJ0KK1

MJ0KK2

CLP Organic ID

NU

NU

NU

NU

E & E Sample ID

NU

NU

NU

NU

Station Location

NSBK02SS

NSSL01SS

NSSL02SS

NSSL03SS

Sample Depth (inches)

0-6

0-6

0-6

0-6

Description

Background

Slag

TAL Metals (mg/kg)

Aluminum

4810

13200

13600

8070

Antimony

1.5 JB

11.8 JB

21.4 JL

60.6 JL



(15.1 SQL)







Arsenic

2.6

294 JL

297 JL

209 JL

Barium

194

157

178

87.1

Cadmium

1.3

2.0

26.9

105

Calcium

90500

4790 JK

23700 JK

15800 JK

Chromium

17.6

13.0

10.8

10.4

Cobalt

2.9 JB

20.5

112

42.0



(12.6 SQL)







Copper

17.3

2430

14700

4480

Iron

7690

31800

35700

23200

Lead

57.0

2600

7980

10500

Magnesium

3520

3550

8040

5970

Manganese

152

275

594

351

Mercury

0.06 U

0.28

0.34

0.40

Nickel

8.0 JB

12.0

25.3

16.5



(10.1 SQL)







Potassium

897 JB

1310

4900

1910

Selenium

1.1 JB

1.2

0.76 U

1.4



(1.3 SQL)







Silver

0.57 JB

13.1

21.3

26.7



(2.5 SQL)







Vanadium

13.8

33.8

44.1

27.9

Zinc

60.9

120

978

5420

Note:	Bold type indicates sample concentration is above the detection limit.

Underlined type indicates the sample results is significant as defined in Section 5.

Key:

B	= The reported concentration is between the instrument detection limit and the contract required detection limit.

BK	= Background.

CLP	= Contract Laboratory Program.

E & E	= Ecology and Environment, Inc.

EPA	= United States Environmental Protection Agency.

ID	= Identification.

J	= The analyte was positively identified. The associated numerical value is an estimate.

K	= Unknown bias.

L	= Low bias.

mg/kg	= Milligrams per kilogram.

NS	= LeRoi Northport Smelter.

NU	= Not utilized.

SL	= Slag.

SQL	= Sample quantitation limit.

SS	= Surface soil.

TAL	= Target Analyte List.

U	= The analyte was not detected. The associated numerical value is the contract required detection limit.

6-95


-------








Table 6-9











LeROI/NORTHPORT SMELTER
SEDIMENT SAMPLES ANALYTICAL RESULTS SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON



EPA Sample ID

011980403

01264431

01264432

01264433

01264434

01264435

01264436

01264437

01264438

01264439

CLP Inorganic ID

NU

MJ0GP0

MJ0GP1

MJ0GP2

MJ0GP3

MJ0GP4

MJ0GP5

MJ0GP6

MJ0GP7

MJ0GP8

CLP Organic ID

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

E & E Sample ID

NU

NU

NU

NU

NU

NU

NU

NU

NU

NU

Station Location

NU

NSSL01SD

NSSL02SD

NSSL03SD

NSSL04SD

NSSL05SD

NSSL06SD

NSSL07SD

NSSL08SD

NSSL09SD

Sample Depth (Inches)

NU

0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6

Description

Background

Columbia River Slag (PPE 3)

TAL Metals (mg/kg)





Arsenic

2 U

L5

15

19.3

23.9

41.4

10.9

12.3

11.1

15.9

Cadmium

0.47

L6

0.81 JB

0.74 JB

L5

LI

33

49

3J

M

Copper

3.6

238 JL

1540 JL

2070 JL

2530 JL

2960 JL

349 JL

257 JL

347 JL

357 JL

Lead

12

230 JK

246 JK

292 JK

388 JK

507 JK

470 JK

548 JK

597 JK

845 JK

Mercury

0.0004 U

0.06 U

0.06 U

0.07 U

0.06 U

0.06 U

0.08 JB

0.11 JB

0.08 JB

0.29

Zinc

26.9

1520

10500

13000

15100

16900

3920

2800

5430

5280

Note: a The highest concentration between the sample and the duplicate of the sample. Sample was collected by Ecology in May of 2001 at Lower Arrow Lake in Canada.

Bold type indicates sample concentration is above the detection limit.

Underlined type indicates the sample results is significant as defined in Section 5.

Key:

B	= The reported concentration is between the instrument detection limit and the contract required detection limit.

BK	= Background.

CLP	= Contract Laboratory Program.

E & E	= Ecology and Environment, Inc.

EPA	= United States Environmental Protection Agency.

ID	= Identification.

J	= The analyte was positively identified. The associated numerical value is an estimate.

K	= Unknown bias.

L	= Low bias.

mg/kg	= Milligrams per kilogram.

NS	= Northport Smelter.

NU	= Not utilized.

PPE	= Probable point of entry.

R	= The data are unusable for all purposes.

SD	= Sediment.

SL	= Slag.

SQL	= Sample quantitation limit.

TAL	= Target Analyte List.

U	= The analyte was not detected. The associated numerical value is the contract required detection limit.

6-96


-------


Table 6-10





LeROI/NORTHPORT SMELTER



SEDIMENT SAMPLE ANALYTICAL RESULTS SUMMARY

UPPER COLUMBIA RIVER MINES AND MILLS

PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS



STEVENS COUNTY, WASHINGTON



EPA Sample ID

01374187

01374186

01374185

CLP Inorganic ID

MJ0KK5

MJ0KK4

MJ0KK3

CLP Organic ID

J0KJ3

J0KJ2

J0KJ1

E & E Sample ID

01090432

01090431

01090430

Station Location

NSBK01SD

NSPP01SD

NSDT01SD

Sample Depth (Inches)

0-8

0-8

0-8

Description

Background

PPE 1

PPE 2

TAL Metals (mg/kg)

Aluminum

2740

7650 JK

7170

Antimony

0.73 UJL

8.3 JB

0.68 U

Arsenic

1.2 UJL

39.9 JK

17.6 JL

Barium

145

413 JK

69.0

Cadmium

0.26 JB
(1.3 SQL)

5.9 JK

M

Calcium

90700 JK

222000 JK

3110 JK

Chromium

7.6

34.8 JK

14.5

Cobalt

1.7 JB
(12.6 SQL)

16.3 JB

5.8 JB

Copper

6.8

1090 JK

124

Iron

6560

15400 JK

13700

Lead

16.6

887 JK

87.1

Magnesium

2600

5950 JK

3650

Manganese

87.3

339 JK

261

Mercury

0.06 U

R

0.06 U

Nickel

4.1 JB
(10.1 SQL)

14.5 JB

13.3

Potassium

485 JB

1650 JB

1380

Selenium

0.86 U

5.8 JK

0.79 U

Silver

0.15 U

3.3 JB

0.92 JB

Sodium

175 JB

684 JB

189 JB

Vanadium

14.6

24.8 JB

24.7

Zinc

26.4

223

92.2

Note:	Bold type indicates sample concentration is above the detection limit.

Underlined type indicates the sample results is significant as defined in Section 5.

B	= The reported concentration is between the instrument detection limit and the contract required detection limit.

BK	= Background.

CLP	= Contract Laboratory Program.

E & E	= Ecology and Environment, Inc.

EPA	= United States Environmental Protection Agency.

ID	= Identification.

J	= The analyte was positively identified. The associated numerical value is an estimate.

K	= Unknown bias.

L	= Low bias.

mg/kg	= Milligrams per kilogram.

NS	= Northport Smelter.

PP	= PPE.

PPE	= Probable point of entry.

R	= The data are unusable for all purposes.

SD	= Sediment.

SQL	= Sample quantitation limit.

TAL	= Target Analyte List.

U	= The analyte was not detected. The associated numerical value is the contract required detection limit.

6-97


-------




Table 6-11







BLACK ROCK MINE/MILL
SURFACE SOIL SAMPLES ANALYTICAL RESULTS SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON

EPA Sample ID



01254160

01254161

01254162

01254163

01254164

CLP Inorganic ID



MJ0GE9

MJ0GF0

MJ0GF1

MJ0GF2

MJ0GF3

CLP Organic ID



NU

NU

NU

NU

NU

E & E Sample ID



NU

NU

NU

NU

NU

Station Location



BRWP01SS

BRWP02SS

BRWP03SS

BRMS01SS

BRMS02SS

Sample Depth (inches)



0-6

0-6

0-6

0-6

0-6

Description

Background

Waste Rock Pile

Mill Soil

TAL Metals (mg/kg)

Aluminum

18100

6030

3590

4470

7700

2000

Arsenic

68.2

62.1 JL

15.8 JL

15.4 JL

5.3 JL

3.0 JL

Barium

548

3870

2300

2890

593

252

Cadmium

7.8

851 JH

688 JH

1090 JH

27.3 JH

1630 JH

Calcium

118000

99000

148000

113000

67200

42400

Chromium

29.0

2.5

2.6

1.9 JB

14.0

2.5

Cobalt

8.6 IB
(63 SQL)

4.0 IB

2.5 JB

2.6 JB

4.8 JB

3.1 JB

Copper

55.2

389

228

398

22.5

192

Iron

25200

15800

6850

6390

12600

5170

Lead

183

6520

555

1040

1800

318

Magnesium

17900

29100

49200

26800

21400

11200

Manganese

1370

99.8

171

129

268

96.0

Mercury

0.06 JB
(0.11 SQL)

26.4

12

18.8

0.19

0.05 U

Nickel

58.4

6.4 JB

5.1 JB

3.2 JB

14.6

3.8 JB

Potassium

11660

674 JB

211 JB

142 JB

1160

213 JB

Selenium

1.5 JL

3.7

2.1

2.3

0.74 U

1.6

Silver

6.7

4.2

1.6 JB

3.8

0.72 JB

4.9

Sodium

3308JB

6810

5060

8780

290 JB

16400

Vanadium

51.2

5.3 JB

5.7 JB

7.0 JB

19.8

2.8 JB

Zinc

835

180000

141000

207000

7550

402000

Note: Bold type indicates sample concentration is above the detection limit.

Underlined type indicates the sample results is significant as defined in Section 5.

Page 1 of 2

6-98


-------
Key:

B	= The reported concentration is between the instrument detection limit and the contract required detection limit.

BR	= Black Rock Mine/Mill.

CLP	= Contract Laboratory Program.

E & E	= Ecology and Environment, Inc.

EPA	= United States Environmental Protection Agency.

H	= High bias.

ID	= Identification.

J	= The analyte was positively identified. The associated numerical value is an estimate.

L	= Low bias.

mg/kg = Milligrams per kilogram.

MS	= Mill soil.

NU	= Not utilized.

SS	= Surface soil.

TAL	= Target Analyte List.

U	= The analyte was not detected. The associated numerical value is the contract required detection limit.

WP	= Waste Rock Pile.

6-99

Page 2 of2


-------


Table 6-12





GREAT WESTERN MINE



SURFACE SOIL SAMPLES ANALYTICAL RESULTS SUMMARY

UPPER COLUMBIA RIVER MINES AND MILLS

PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON



EPA Sample ID



01254177

01254178

CLP Inorganic ID



MJ0GG6

MJ0GG7

CLP Organic ID



NU

NU

E & E Sample ID



NU

NU

Station Location



GWWP01SS

GWWP02SS

Sample Depth (inches)



0-6

0-6

Description

Background

Waste Rock Pile

TAL Metals (mg/kg)

Aluminum

18100

7470 JL

1970 JL

Arsenic

68.2

68.4 JH

61.5 JH

Barium

548

68.8

19.6 JB

Cadmium

7.8

166 JL

490 JL

Calcium

118000

78900 JL

97300 JL

Chromium

29.0

21.6 JL

14.2 JL

Cobalt

8.6 JB







(63 SOL)

1.3 JB

0.33 JB

Copper

55.2

57.7 JL

46.7 JL

Iron

25200

83600 JL

57300 JL

Lead

183

6200

24000

Magnesium

17900

49900 JL

61400 JL

Manganese

1370

413 JL

572 JL

Mercury

0.06 JB







(0.11 SQL)

2.5

4.3

Nickel

58.4

15.4 JL

17.7 JL

Potassium

11660

766 JB

232 JB

Selenium

1.5 JL

R

R

Silver

6.7

5.3

7.5

Sodium

3308 JB

732 JB

2830

Thallium

1.4 U

4.5

2.3

Vanadium

51.2

48.5 JL

33.8 JL

Zinc

835

52700 JK

118000 JK

Note: Bold type indicates sample concentration is above the detection limit.

Underlined type indicates the sample results is significant as defined in Section 5.

Key:

B	= The reported concentration is between the instrument detection limit and the contract required detection limit.

CLP	= Contract Laboratory Program.

E & E	= Ecology and Environment, Inc.

EPA	= United States Environmental Protection Agency.

GW	= Great Western Mine.

H	= High bias.

ID	= Identification.

J	= The analyte was positively identified. The associated numerical value is an estimate.

K	= Unknown bias.

L	= Low bias.

mg/kg	= Milligrams per kilogram.

NU	= Not utilized.

R	= The data are unusable for all purposes.

SS	= Surface soil.

TAL	= Target Analyte List.

U	= The analyte was not detected. The associated numerical value is the contract required detection limit.

WP	= Waste Rock Pile.

6-100


-------








Table 6-13











LAST CHANCE MINE/MILL
SURFACE SOIL SAMPLES ANALYTICAL RESULTS SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON



EPA Sample ID



01254174

01254175

01254176

01254169

01254170

01254171

01254165

01254166

01254167

CLP Inorganic ID



MJ0GG3

MJ0GG4

MJ0GG5

MJ0GF8

MJ0GF9

MJ0GG0

MJ0GF4

MJ0GF5

MJ0GF6

CLP Organic ID



NU

NU

NU

NU

NU

NU

NU

NU

NU

E & E Sample ID



NU

NU

NU

NU

NU

NU

NU

NU

NU

Station Location



LCWP01SS

LCWP02SS

LCWP03SS

LCTP01SS

LCTP02SS

LCTP03SS

LCMS01SS

LCMS02SS

LCMS03SS

Sample Depth (inches)



0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6

Description

Background

Waste Rock Pile

Tailings Pile

Mill Soil

TAL Metals (mg/kg)

Aluminum

18100

2980

3480

1890

585

418

649

2440

3560

437

Arsenic

68.2

101

105

135

112 JL

120 JL

82.9 JL

71.0 JL

36.0 JL

143 JL

Barium

548

26.0 IB

25.8 JB

18.4 JB

18.1 JB

14.1 JB

18.2 JB

84.2

267

13.4 JB

Cadmium

7.8

285

349

326

301 JH

269 JH

518 JH

165 JH

136 JH

471 JH

Calcium

118000

44400

34700

38800

68200

74800

67000

162000

241000

51200

Chromium

29.0

12.1

11.3

12.8

10.7

10.3

9.2

8.0

7.7

11.5

Cobalt

8.6 IB
(63 SQL)

0.24 U

0.24 U

0.26 U

0.24 U

0.24 U

0.23 U

0.26 U

1.5 JB

0.24 U

Copper

55.2

48.1 JL

51.6 JL

56.0 JL

53.2

49.2

39.1

50.2

2790

61.1

Iron

25200

156000

161000

167000

181000

166000

113000

103000

37000

200000

Lead

183

113000

125000

170000

110000

72900

110000

29000

18000

86200

Magnesium

17900

28300

22500

24200

39500

46700

32300

15300

10700

31200

Manganese

1370

200

198

216

129

108

98.2

107

185

107

Mercury

0.06 IB
(0.11 SQL)

1.5

2.0

2.7

2.3

1.4

1.3

0.06 U

1.3

2.6

Nickel

58.4

13.1

13.3

12.5

10.5

9.7

8.8

8.8 JB

9.5 JB

11.6

Potassium

11660

366 JB

444 JB

261 JB

83.0 JB

69.2 JB

118 JB

241 JB

346 JB

81.7 JB

Selenium

1.5 JL

0.75 U

0.75 U

0.80 U

0.74 U

0.74 U

0.71 U

0.81 U

0.86 U

0.73 U

Silver

6.7

9.9

10.0

12.1

8.7

6.2

7.5

3.0

9.2

7.3

Sodium

3308 IB

1000 JB

1520

1500

1490

1160

2960

588 JB

385 JB

2640

Thallium

1.4 U

6.5

6.9

8.3

0.85 U

0.85 U

0.82 U

0.93 U

0.99 U

0.84 U

Vanadium

51.2

12.0

12.9

14.8

9.5 JB

11.2

8.5 JB

8.4 JB

5.8 JB

14.6

Zinc

835

67700

89800

89300

72600

63900

112000

36900

18600

107000

Note: Bold type indicates sample concentration is above the detection limit.

Underlined type indicates the sample results is significant as defined in Section 5.

Page 1 of2

6-101


-------
Key:

B	= The reported concentration is between the instrument detection limit and the contract required detection limit.

CLP	= Contract Laboratory Program.

E & E	= Ecology and Environment, Inc.

EPA	= United States Environmental Protection Agency.

H	= High bias.

ID	= Identification.

J	= The analyte was positively identified. The associated numerical value is an estimate.

L	= Low bias.

LC	= Last Chance Mine/Mill.

mg/kg = Milligrams per kilogram.

MS	= Mill soil.

NU	= Not utilized.

SS	= Surface soil.

TAL	= Target Analyte List.

TP	= Tailings pile.

U	= The analyte was not detected. The associated numerical value is the contract required detection limit.

WP	= Waste Rock Pile.

6-102

Page 2 of 2


-------


Table 6-14



LAST CHANCE MINE/MILL
SEDIMENT SAMPLES ANALYTICAL RESULTS SUMMARY

UPPER COLUMBIA RIVER MINES AND MILLS
PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS
STEVENS COUNTY, WASHINGTON

EPA Sample ID



01254168

01254173

CLP Inorganic ID



MJ0FG7

MJ0GG2

CLP Organic ID



NU

NU

E & E Sample ID



NU

NU

Station Location



LCPP01SD

LCPP02SD

Sample Depth (inches)



0-8

0-8

Description

Background

PPE 1

PPE 2

TAL Metals (mg/kg)

Aluminum

20200

5800

1280

Arsenic

13.0

30.5 JL

1.9 UJK

Barium

450

112

70.5 JB

Cadmium

3.4

56.9 JH

3.2 JH

Calcium

109000

191000

197000

Chromium

32.3

9.5

1.9 JB

Cobalt

11.9

1.2 JB

0.51 U

Copper

69.3

75.1

3.9 JB

Iron

27900

39000

4940

Lead

124

14600

385

Magnesium

33500

14500

7540

Manganese

673

170

58.5

Mercury

0.10 JB
(0.102 SQL)

0.46

11

Nickel

31.9

8.6 JB

2.5 JB

Potassium

3920 JK

623 JB

315 JB

Vanadium

47.4

9.6 JB

3.1 JB

Zinc

239

13400

1100

Note:	Bold type indicates sample concentration is above the detection limit.

Underlined type indicates the sample results is significant as defined in Section 5.

Key:

B	= The reported concentration is between the instrument detection limit and the contract required detection limit.

CLP	= Contract Laboratory Program.

E & E	= Ecology and Environment, Inc.

EPA	= United States Environmental Protection Agency.

H	= High bias.

ID	= Identification.

J	= The analyte was positively identified. The associated numerical value is an estimate.

K	= Unknown bias.

LC	= Last Chance Mine/Mill.

mg/kg	= Milligrams per kilogram.

jug/kg	= Micrograms per kilogram.

PPE	= Probable point of entry.

SD	= Sediment.

SQL	= Sample quantitation limit.

TAL	= Target Analyte List.

U	= The analyte was not detected. The associated numerical value is the contract required detection limit.

6-103


-------
Table 6-15

DEEP CREEK MINE
SURFACE SOIL SAMPLES ANALYTICAL RESULTS SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS
PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS
STEVENS COUNTY, WASHINGTON

EPA Sample ID



01254251

01254252

01254253

01254254

01254267

01254255

01254256

01254257

01254258

CLP Inorganic ID



MJ0EN5

MJ0EN6

MJ0EN7

MJ0EN8

MJ0EQ1

MJ0EN9

MJ0EP0

MJ0EP1

MJ0EP2

CLP Organic ID



NU

J0EN6

J0EN7

J0EN8

NU

J0EN9

J0EP0

J0EP1

J0EP2

E & E Sample ID



NU

NU

NU

NU

NU

NU

NU

NU

NU

Station Location



DCWP01SS

DCWP02SS

DCWP03SS

DCWP04SS

DCWP05SS

DCTP01SS

DCTP02SS

DCTP03SS

DCTP04SS

Sample Depth (inches)



0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6

Description

Background

Waste Rock Pile

Tailings Pile

TAL Metals (mg/kg)

Aluminum

18100

133

1350

2070

1750

75.7

761

656

439

497

Arsenic

68.2

4.5

5.4

4.4

2.8

1.9 JB

12.3

14.0

8.8

11.6

Barium

548

1.4 U

23.5 JB

57.6

30.2 JB

1.4 U

10.6 JB

11.3 JB

6.8 JB

9.6 JB

Cadmium

7.8

8.1

16.3

24.9

25.2

15.1

147

160

124

138

Calcium

118000

187000

173000

132000

153000

180000

137000

141000

162000

155000

Chromium

29.0

0.41 U

2.3

3.4

3.2

0.62 U

2.7

2.5 JB

1.9 JB

1.8 JB

Cobalt

14.7

0.22 U

0.58 JB

1.4 JB

1.4 JB

0.26 U

0.29 U

0.33 JB

0.28 U

0.28 U

Copper

55.2

13.1 JL

10.4 JL

10.2 JL

8.6 JL

10.0 JL

52.0 JL

46.5 JL

29.7 JL

30.5 JL

Iron

25200

2120

7160

7210

6090

2310

11600

13500

10900

12200

Lead

183

476

799

558

416

324

6110

5990

3350

5230

Magnesium

17900

125000

105000

67000

93900

117000

75500

78800

87800

86300

Manganese

1370

172

184

175

206

167

186

197

183

192

Mercury

0.06 IB
(0.11 SQL)

0.06 JB

0.25

0.14

0.21

0.06 U

27

2A

M

M

Nickel

58.4

0.67 U

3.2 JB

4.1 JB

3.6 JB

0.74 JB

4.2 JB

4.9 JB

3.6 JB

3.8 JB

Potassium

11660

45.5 JB

224 JB

449 JB

413 JB

33.2 JB

95.6 JB

98.5 JB

56.1 JB

67.3 JB

Selenium

1.5 JL

0.69 U

0.69 U

0.76 U

0.75 U

0.79 U

0.89 U

0.90 U

0.87 U

0.86 U

Silver

6.7

0.16 U

0.42 JB

0.18 JB

0.18 U

0.19 U

2.4 JB

2.4 JB

1.5 JB

1.9 JB

Sodium

377 JB

186 JB

213 JB

230 JB

230 JB

192 JB

604 JB

731 JB

573 JB

585 JB

Vanadium

51.2

1.6 JB

11.4

7.2 JB

6.4 JB

5.2 JB

14.8

18.2

14.6

14.9

Zinc

835

2030

4220

6770

7780

4680

37500

41300

34400

34500

Pesticide/PCBs (|Xg/kg)

4,4'-DDT | 3.5 U | NU 3.4 U 3.7 U 3.6 U NU 4.5 U 5.5 U 4U 4.1 JQ

6-104

Page 1 of 4


-------
Table 6-15

DEEP CREEK MINE
SURFACE SOIL SAMPLES ANALYTICAL RESULTS SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS
PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS
STEVENS COUNTY, WASHINGTON

EPA Sample ID



01254259

01254260

01254261

01254262

01254263

01254264

01254265

01254266

01254268

CLP Inorganic ID



MJ0EP3

MJ0EP4

MJ0EP5

MJ0EP6

MJ0EP7

MJ0EP8

MJ0EP9

MJ0EQ0

MJ0EQ2

CLP Organic ID



J0EP3

J0EP4

J0EP5

J0EP6

J0EP7

J0EP8

J0EP9

J0EQ0

J0EQ2

E & E Sample ID



NU

NU

NU

NU

NU

NU

NU

NU

NU

Station Location



DCTP05SS

DCTP06SS

DCTP07SS

DCTP08SS

DCTP09SS

DCTP10SS

DCTP11SS

DCTP12SS

DCTP13SS

Sample Depth (inches)



0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6

Description

Background

Tailings Pile

TAL Metals (mg/kg)

Aluminum

18100

819

617

455

593

750

405

354

344

795

Arsenic

68.2

12

15.6

11.4

14.6

22.6

9.7

9.8

12.7

8.0

Barium

548

13.2 JB

11.3 JB

5.9 JB

9.1 JB

29.0 JB

7.3 JB

7.8 JB

10.5 JB

9.2 JB

Cadmium

7.8

169

232

142

162

192

122

151

170

425

Calcium

118000

147000

154000

147000

144000

147000

149000

157000

155000

132000

Chromium

29.0

2.2 IB

2.2 JB

1.9 JB

2.5 JB

2.8

1.6 JB

1.5 JB

1.6 JB

1.9 JB

Cobalt

14.7

0.37 JB

0.28 U

0.29 U

0.29 U

0.35 JB

0.30 U

0.28 U

0.27 U

0.49 JB

Copper

55.2

32.0 JL

43.7 JL

41.0 JL

53.2 JL

35.5 JL

31.2 JL

33.3 JL

35.5 JL

60.2 JL

Iron

25200

18500

18300

11200

13700

15300

10700

11900

16600

17800

Lead

183

5410

13300

4900

6290

8250

5200

5660

6700

1860

Magnesium

17900

85000

92200

85100

83900

80600

85000

94300

94900

82600

Manganese

1370

194

186

199

202

186

170

208

198

226

Mercury

0.06 IB
(0.11 SQL)

LZ

3;2

M

M

23

0.97

2A

12

LI

Nickel

58.4

6.4 JB

6.8 JB

3.7 JB

4.8 JB

5.9 JB

3.3 JB

4.0 JB

5.2 JB

4.4 JB

Potassium

11660

153 JB

78.4 JB

43.6 JB

74.4 JB

78.3 JB

55.3 JB

27.4 JB

42.5 JB

101 JB

Selenium

1.5 JL

0.84 U

0.85 U

0.89 U

0.91 U

0.92 U

0.94 U

0.86 U

0.84 U

0.72 U

Silver

6.7

2.1 JB

3.0

2.1 JB

2.7 JB

2.4 JB

1.6 JB

1.6 JB

2.1 JB

1.3 JB

Sodium

377 JB

847 JB

1130 JB

531 JB

814 JB

767 JB

559 JB

682 JB

809 JB

3340

Vanadium

51.2

11.7 JB

10.5 JB

14.4

20.5

29.5

11.4 JB

12.3 JB

12.9

8.8 JB

Zinc

835

48300

58000

33300

46000

44300

33100

39800

46300

123000

Pesticide/PCBs (|Xg/kg)

4,4'-DDT | 3.5 U | 4.2 U 4.1 U 4.3 U 4.3 U 3.9 JQ 4.3 U 4.1 U 4.1 U 3.6 U

6-105

Page 2 of 4


-------




Table 6-15







DEEP CREEK MINE
SURFACE SOIL SAMPLES ANALYTICAL RESULTS SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS
PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS
STEVENS COUNTY, WASHINGTON



EPA Sample ID



01254269

01254270

01254272

01254273

01254274

CLP Inorganic ID



MJ0EQ3

MJ0EQ4

MJ0EQ6

MJ0EQ7

MJ0EQ8

CLP Organic ID



J0EQ3

J0EQ4

J0EQ6

J0EQ7

J0EQ8

E & E Sample ID



NU

NU

NU

NU

NU

Station Location



DCTP14SS

DCTP15SS

DCTP16SS

DCTP17SS

DCTP18SS

Sample Depth (inches)



0-6

0-6

0-6

0-6

0-6

Description

Background

Tailings Pile

TAL Metals (mg/kg)

Aluminum

18100

189

913

1500

2820

3730

Arsenic

68.2

4.7

9.1

11.5 U

1.5 U

2.6 U

Barium

548

2.6 JB

17.6 JB

125 JB

34.6 JB

32.1 JB

Cadmium

7.8

23.8

96.2

261

30.7

18.3

Calcium

118000

175000

136000

155000

131000

142000

Chromium

29.0

0.66 U

6.7

3.8 JB

3.5

4.8

Cobalt

14.7

0.23 U

0.53 JB

1.3 U

0.88 JB

1.3 JB

Copper

55.2

4.4 JB

21.1 JL

148 JL

19.9 JL

12.4 JL

Iron

25200

11900

17800

3460

5660

7270

Lead

183

280

4360

4240

632

202

Magnesium

17900

116000

83400

15700

72000

90700

Manganese

1370

193

184

54.8

153

183

Mercury

0.06 JB
(0.11 SQL)

0.48

0.51

0.58 JB

0.17

0.35

Nickel

58.4

2.8 JB

10

16.5 JB

5.3 JB

7.7 JB

Potassium

11660

28.3 JB

155 JB

483 JB

427 JB

577 JB

Selenium

1.5 JL

0.70 U

0.71 U

5.3 JB

1.2 JB

0.84 U

Silver

6.7

0.24 JB

1.1 JB

1.2 JB

0.23 U

0.28 JB

Sodium

377 IB

229 JB

561 JB

665 JB

166 JB

193 JB

Vanadium

51.2

10.4

9.7 JB

3.7 JB

6.9 JB

10.3 JB

Zinc

835

10800

31300

51500

4240

6720

Pesticide/PCBs (|ig/kg)

4,4'-DDT

3.5 U

3.4 U

3.6 U

15 U

4.8 U

4.5 U

6-106

Page 3 of 4


-------
Note:	Bold type indicates sample concentration is above the detection limit.

Underlined type indicates the sample results is significant as defined in Section 5.

Key:

B	= The reported concentration is between the instrument detection limit and the contract required detection limit.

CLP	= Contract Laboratory Program.

DC	= Deep Creek Mine.

E & E	= Ecology and Environment, Inc.

EPA	= United States Environmental Protection Agency.

ID	= Identification.

J	= The analyte was positively identified. The associated numerical value is an estimate.

L	= Low bias.

mg/kg	= Milligrams per kilogram.

(xg/kg	= Micrograms per kilogram.

NU	= Not utilized.

PCBs	= Polychlorinated biphenyls.

Q	= The result is estimated because it is below the Contract Required Detection Limit.

SS	= Surface soil.

TAL	= Target Analyte List.

TP	= Tailings pile.

U	= The analyte was not detected. The associated numerical value is the contract required detection limit.

WP	= Waste Rock Pile.

6-107

Page 4 of 4


-------


Table 6-16





COPPER KING MINE



SURFACE SOIL SAMPLES ANALYTICAL RESULTS SUMMARY

UPPER COLUMBIA RIVER MINES AND MILLS

PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON



EPA Sample ID



01254156

01254157

CLP Inorganic ID



MJ0GE5

MJ0GE7

CLP Organic ID



NU

NU

E & E Sample ID



NU

NU

Station Location



CKWP01SS

CKWP02SS

Sample Depth (inches)



0-6

0-6

Description

Background

Waste Rock Pile

TAL Metals (mg/kg)

Aluminum

18100

308

476

Arsenic

68.2

4.3 JL

2.2 JB

Barium

548

12.3 JB

34 JB

Cadmium

7.8

0.07 U

0.07 U

Calcium

118000

16000

958 JB

Chromium

29.0

1.1 JB

2.6

Cobalt

8.6 JB

0.26 U

0.26 U



(63 SQL)





Copper

55.2

559

1700

Iron

25200

367000

262000

Lead

183

24.3

27.6

Magnesium

17900

4360

334 JB

Manganese

1370

282

276

Mercury

0.06 JB

0.12

0.06 U



(0.11 SQL)





Nickel

58.4

0.36 U

0.58 JB

Potassium

11660

377 JB

336 JB

Selenium

1.5 JL

15.1

18.9

Silver

6.7

6.2

8.5

Thallium

1.4 U

2.4

3.7

Vanadium

51.2

3.0 JB

5.5 JB

Zinc

835

668

31.0

Note:	Bold type indicates sample concentration is above the detection limit.

Underlined type indicates the sample results is significant as defined in Section 5.

Key:

B	= The reported concentration is between the instrument detection limit and the contract required detection limit.

CK	= Copper King Mine.

CLP	= Contract Laboratory Program.

E & E	= Ecology and Environment, Inc.

EPA	= United States Environmental Protection Agency.

ID	= Identification.

J	= The analyte was positively identified. The associated numerical value is an estimate.

L	= Low bias.

mg/kg = Milligrams per kilogram.

NU	= Not utilized.

SS	= Surface soil.

TAL	= Target Analyte List.

U	= The analyte was not detected. The associated numerical value is the contract required detection limit.

WP	= Waste rock pile.

6-108


-------


Table 6-17



COPPER KING MINE
SEDIMENT SAMPLES ANALYTICAL RESULTS SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS
PRELIMINARY ASSESSMENT AND SITE INSPECTIONS
STEVENS COUNTY, WASHINGTON

EPA Sample ID



01254159

CLP Inorganic ID



MJ0GE8

CLP Organic ID



NU

E & E Sample ID



NU

Station Location



CKPP01SD

Sample Depth (inches)



0-8

Description

Background

PPE 1

TAL Metals (mg/kg)

Aluminum

20200

5750

Arsenic

13.0

4.9 JL

Barium

450

1320

Cadmium

3.4

0.88 IB

Calcium

109000

149000

Chromium

32.3

6.5

Cobalt

11.9

1.5 JB

Copper

69.3

6.3

Iron

27900

17700

Lead

124

33.0

Magnesium

33500

86900

Manganese

673

456

Nickel

31.9

5.9 JB

Potassium

3920 JK

858 JB

Vanadium

47.4

7.3 JB

Zinc

239

318

Note:	Bold type indicates sample concentration is above the detection limit.

Key:

B	= The reported concentration is between the instrument detection limit and the contract required detection limit.

CK	= Copper King Mine.

CLP	= Contract Laboratory Program.

E & E	= Ecology and Environment, Inc.

EPA	= United States Environmental Protection Agency.

ID	= Identification.

J	= The analyte was positively identified. The associated numerical value is an estimate.

K	= Unknown bias.

L	= Low bias.

mg/kg	= Milligrams per kilogram.

PP	= Probable point of entry.

PPE	= Probable point of entry.

SD	= Sediment.

TAL	= Target Analyte List.

6-109


-------








Table 6-18











SIERRA ZINC MINE/MILL
SURFACE SOIL SAMPLES ANALYTICAL RESULTS SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS PRELIMINARY ASSESSMENT AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON



EPA Sample ID



01254299

01254300

01254301

01254302

01254303

01254304

01254305

01254306

01254307

CLP Inorganic ID



MJ0ET3

MJ0ET4

MJ0ET5

MJ0ET6

MJ0ET7

MJ0ET8

MJ0ET9

MJ0EW0

MJ0EW1

CLP Organic ID



J0ET3

NU

J0ET5

NU

NU

NU

NU

NU

NU

E & E Sample ID



J0ET4

NU

NU

NU

NU

NU

NU

NU

NU

Station Location



SZWP01SS

SZWP02SS

SZWP03SS

SZWP04SS

SZWP05SS

SZWP06SS

SZWP07SS

SZWP08SS

SZWP09SS

Sample Depth (inches)



0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6

Description

Background

Waste Rock Pile

TAL Metals (mg/kg)

Aluminum

18100

5260

6570

4040

788

846

495

1940

2990

2560

Arsenic

68.2

6.4 JH

53.7 JH

12.5 JH

9.6 JH

9.2 JH

5.0 JH

12.6 JH

7.3 JH

9.7 JH

Barium

548

32.0 JB

64.7

27.0 JB

13.9 JB

8.0 JB

6.3 JB

24.2 JB

35.7 JB

24.4 JB

Cadmium

7.8

21.7

65.1

121

15.8

15.9

13.9

22.7

15.3

22.7

Calcium

118000

17300

53000

72900

152000

156000

157000

85900

71600

106000

Chromium

29.0

7.2

8.1

5.5

1.9 JB

2.2

3.1

2.5

3.3

2.9

Cobalt

8.6 JB
(63 SQL)

3.0 JB

2.9 JB

3.1 JB

0.57 JB

0.24 U

0.28 JB

1.2 JB

1.5 JB

0.95 JB

Copper

55.2

55.7 JH

130 JH

181 JH

53.9 JH

40.1 JH

61.6 JH

104 JH

46.2 JH

54.4 JH

Iron

25200

14200

35400

28300

17500

19600

9820

30100

16500

21700

Lead

183

1460

6570

15800

918

1380

871

2230

1180

1990

Magnesium

17900

5810

26000

38900

95100

98900

100000

52700

43100

63800

Manganese

1370

1150

2730

1850

441

437

462

272

257

245

Mercury

0.06 JB
(0.11 SQL)

0.10 JB

1.6 JL

0.68 JL

0.18 JL

0.23 JL

0.10 JB

0.33 JL

0.17 JL

0.25 JL

Nickel

58.4

6.1 JB

10

9.9

6.3 JB

7.0 JB

4.6 JB

11.0

6.8 JB

8.7 JB

Potassium

11660

1110 JL

845 JB

768 JB

349 JB

117 JB

108 JB

402 JB

843 JB

429 JB

Selenium

1.5 JL

0.71 UJK

0.74 UJK

0.73 UJK

0.73 UJK

0.75 UJK

0.74 UJK

0.74 UJK

0.73 UJK

0.76 UJK

Silver

6.7

2.2

5.8

5.8

0.61 JB

0.58 JB

0.28 JB

0.95 JB

0.50 JB

0.75 JB

Vanadium

51.2

12.7

12.4

10.4 JB

6.5 JB

5.8 JB

5.6 JB

8.0 JB

11.2

7.7 JB

Zinc

835

4980

14600

32200

4100

4330

3990

5900

3820

5880

6-110

Page 1 of 5


-------








Table 6-18











SIERRA ZINC MINE/MILL
SURFACE SOIL SAMPLES ANALYTICAL RESULTS SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON



EPA Sample ID



01254308

01254309

01254310

01254277

01254278

01254279

01254280

01254281

01254282

CLP Inorganic ID



MJ0EW2

MJ0EW3

MJ0EW4

MJ0ER1

MJ0ER2

MJ0ER3

MJ0ER4

MJ0ER5

MJ0ER6

CLP Organic ID



NU

NU

NU

NU

NU

NU

NU

NU

NU

E & E Sample ID



NU

NU

NU

NU

NU

NU

NU

NU

NU

Station Location



SZWP10SS

SZWP11SS

SZWP12SS

SZTP01SS

SZTP02SS

SZTP03SS

SZTP04SS

SZTP05SS

SZTP06SS

Sample Depth (inches)



0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6

Description

Background

Waste Rock Pile

Tailings Pile

TAL Metals (mg/kg)

Aluminum

18100

814

1240

5210

2650

173

298

1700

2580

3230

Arsenic

68.2

9.7 JH

7.0 JH

8.7 JH

7.0

6.4

5.6

6.6

6.6

6.4

Barium

548

46.5

32.8 JB

53.2

195

5.4 JB

7.8 JB

156

300

317

Cadmium

7.8

30.5

29.6

27.2

68.1

23.4

14.4

130

126

111

Calcium

118000

139000

148000

98600

134000

168000

178000

121000

119000

122000

Chromium

29.0

3.3

3.8

4.8

9.7

0.84 JB

1.3 JB

6.4

9.7

11.2

Cobalt

8.6 JB
(63 SQL)

0.63 JB

0.67 JB

1.7 JB

1.6 JB

0.23 U

0.28 U

2.3 JB

2.4 JB

3.0 JB

Copper

55.2

74.5 JH

144 JH

72.6 JH

370

28.8

33.4

123

251

293

Iron

25200

21000

15200

18200

15700 JK

17900 JK

10600 JK

18400 JK

18100 JK

17000 JK

Lead

183

1960

1710

1970

2830

488

2110

1680

2290

3120

Magnesium

17900

86700

91200

60400

77000

105000

105000

70700

70000

72800

Manganese

1370

527

548

483

414

255

265

443

450

487

Mercury

0.06 JB
(0.11 SQL)

0.57 JL

0.40 JL

0.38 JL

1.7 JL

0.10 JB

0.24 JL

2.7 JL

2.2 JL

2.1 JL

Nickel

58.4

8.7 JB

7.1 JB

8.7 JB

18.7

4.8 JB

3.5 JB

17.5

21.1

21.1

Potassium

11660

250 JB

232 JB

529 JB

943 JB

64.9 JB

91.3 JB

884 JB

1170JB

1260 JB

Selenium

1.5 JL

0.78 UJK

0.78 UJK

0.78 UJK

0.84 U

0.71 U

0.88 U

1.3

0.94 U

0.86 U

Silver

6.7

3.2

2.3 JB

2.6

9.3

0.63 JB

0.34 JB

17.0

16.4

13.4

Vanadium

51.2

8.2 JB

8.4 JB

10 JB

24.0

6.2 JB

8.5 JB

24.9

30.7

31.2

Zinc

835

7030

7530

6770

17600 JK

6860 JK

3560 JK

33400 JK

29500 JK

26100 JK

6-111

Page 2 of 5


-------








Table 6-18











SIERRA ZINC MINE/MILL
SURFACE SOIL SAMPLES ANALYTICAL RESULTS SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON



EPA Sample ID



01254283

01254284

01254285

01254286

01254287

01254288

01254289

01254290

01254291

CLP Inorganic ID



MJ0ER7

MJ0ER8

MJ0ER9

MJ0ES0

MJ0ES1

MJ0ES2

M JOE S3

MJ0ES4

MJ0ES5

CLP Organic ID



NU

NU

NU

NU

NU

NU

NU

NU

NU

E & E Sample ID



NU

NU

NU

NU

NU

NU

NU

NU

NU

Station Location



SZTP07SS

SZTP08SS

SZTP09SS

SZTP10SS

SZTP11SS

SZTP12SS

SZTP13SS

SZTP14SS

SZTP15SS

Sample Depth (inches)



0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6

Description

Background

Tailings Pile

TAL Metals (mg/kg)

Aluminum

18100

214

365

1120

14500

5650

8960

1560

1010

913

Arsenic

68.2

6.5

6.2

8.2

5.8

4.5

3.4

9.8

8.7

9.5

Barium

548

6.8 JB

6.0 JB

37.4 JB

206

73.3

137

52.5 JB

38.3 JB

62.4

Cadmium

7.8

23.2

23.6

45.8

18.3

14.6

18.8

65.6

58.6

54.4

Calcium

118000

161000

160000

153000

53100

82100

39500

148000

154000

153000

Chromium

29.0

1.5 JB

1.6 JB

4.5

8.7

5.6

9.2

6.2

5.2

4.6

Cobalt

8.6 JB
(63 SQL)

0.27 U

0.28 U

0.38 JB

3.2 JB

2.0 JB

3.6 JB

0.74 JB

0.60 JB

0.60 JB

Copper

55.2

50.7

69.5

146

97.7

63.4

104

236

185

163

Iron

25200

13000 JK

12300 JK

15400 JK

14500 JK

12100 JK

12500 JK

16500 JK

15700 JK

16100 JK

Lead

183

1670

1830

3210

1110

1020

917

3470

3620

3450

Magnesium

17900

83100

81000

87200

28700

47900

21500

81600

84500

85000

Manganese

1370

202

191

320

478

264

328

381

372

349

Mercury

0.06 JB
(0.11 SQL)

0.36 JL

0.33 JL

0.57 JL

0.26 JL

0.21 JL

0.14 JB

0.70 JL

0.80 JL

0.84 JL

Nickel

58.4

5.7 JB

5.0 JB

8.0 JB

11.0

7.6 JB

12.2

11.7

10.5 JB

9.8 JB

Potassium

11660

59.3 JB

65.7 JB

174 JB

800 JB

699 JB

1060 JB

483 JB

280 JB

263 JB

Selenium

1.5 JL

0.82 U

0.85 U

0.86 U

0.87 U

0.80 U

1.0 U

0.90 U

0.89 U

0.87 U

Silver

6.7

0.62 JB

0.71 JB

1.6 JB

1.8 JB

0.92 JB

2.1 JB

6.3

4.1

4.2

Vanadium

51.2

5.3 JB

5.9 JB

10.5 JB

22.5

15.7

21.5

15.5

12.4 JB

11.7 JB

Zinc

835

7220 JK

5340 JK

10100 JK

4410 JK

3730 JK

4880 JK

15600 JK

12000 JK

11500 JK

6-112

Page 3 of 5


-------






Table 6-18









SIERRA ZINC MINE/MILL
SURFACE SOIL SAMPLES ANALYTICAL RESULTS SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON

EPA Sample ID



01254292

01254293

01254294

01254295

01254296

01254297

01254311

CLP Inorganic ID



MJ0ES6

MJ0ES7

MJ0ES8

MJ0ES9

MJ0ET0

MJ0ET1

MJ0EW5

CLP Organic ID



NU

NU

NU

NU

NU

NU

J0EW5

E & E Sample ID



NU

NU

NU

NU

NU

NU

NU

Station Location



SZTP16SS

SZTP17SS

SZTP18SS

SZTP19SS

SZTP20SS

SZTP21SS

SZMS01SS

Sample Depth (inches)



0-6

0-6

0-6

0-6

0-6

0-6

0-6

Description

Background

Tailings Pile

Mill Soil

TAL Metals (mg/kg)

Aluminum

18100

383

494

408

714

319

743

1940

Arsenic

68.2

6.5

6.7 JH

6.6 JH

7.2 JH

7.0 JH

5.8 JH

8.4 JH

Barium

548

9.2 JB

11.1 JB

14.6 JB

17.0 JB

5.2 JB

11.0 JB

127

Cadmium

7.8

44.7

44.9

46.0

54.7

46.1

70.0

78.2

Calcium

118000

159000

156000

154000

149000

158000

143000

130000

Chromium

29.0

2.9

2.9

2.9

4.4

2.6

4.9

27.3

Cobalt

8.6 IB
(63 SQL)

0.28 U

0.28 U

0.3 JB

0.42 JB

0.28 U

0.30 U

6.1 JB

Copper

55.2

162

163 JH

180 JH

222 JH

147 JH

297 JH

443 JH

Iron

25200

10900 JK

10600

11800

14600

10200

13500

33700

Lead

183

3370

3280

3980

4050

2940

5110

4850

Magnesium

17900

90200

87800

89300

77600

89300

69500

63900

Manganese

1370

301

284

258

569

236

629

520

Mercury

0.06 IB
(0.11 SQL)

0.60 JL

0.65 JL

0.62 JL

0.68 JL

0.76 JL

0.77 JL

0.97 JL

Nickel

58.4

6.0 JB

5.5 JB

6.0 JB

8.2 JB

5.5 JB

7.8 JB

47.0

Potassium

11660

96.6 JB

108 JB

107 JB

216 JB

79.8 JB

208 JB

367 JB

Selenium

1.5 JL

0.85 U

0.87 UJK

0.85 UJK

0.90 UJK

0.87 UJK

0.92 UJK

0.89 UJK

Silver

6.7

1.5 JB

1.8 JB

1.8 JB

3.1

1.3 JB

2.8

8.7

Vanadium

51.2

7.2 JB

7.6 JB

7.7 JB

10.5 JB

7.6 JB

12.6 JB

15.0

Zinc

835

10800 JK

9700

9930

12300

10300

14700

17500

6-113

Page 4 of 5


-------
Note:	Bold type indicates sample concentration is above the detection limit.

Underlined type indicates the sample results is significant as defined in Section 5.

Key:

B	= The reported concentration is between the instrument detection limit and the contract required detection limit.

CLP	= Contract Laboratory Program.

E & E	= Ecology and Environment, Inc.

EPA	= United States Environmental Protection Agency.

H	= High bias.

ID	= Identification.

J	= The analyte was positively identified. The associated numerical value is an estimate.

K	= Unknown bias.

L	= Low bias,

mg/kg	= Milligrams per kilogram.

MS	= Mill soil.

NU	= Not utilized.

SS	= Surface soil.

SZ	= Sierra Zinc Mine/Mill.

TAL	= Target Analyte List.

TP	= Tailings pile.

U	= The analyte was not detected. The associated numerical value is the contract required detection limit.

WP	= Waste Rock Pile.

6-114

Page 5 of 5


-------
Table 6-19

ELECTRIC POINT MINE/MILL
SURFACE SOIL SAMPLES ANALYTICAL RESULTS SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS
PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS
STEVENS COUNTY, WASHINGTON

EPA Sample ID



01254185

01254186

01254187

01254191

01254192

01254193

01254194

01254195

CLP Inorganic ID



MJ0GH4

MJ0GH5

MJ0GH6

MJ0GJ0

MJ0GJ1

MJ0GJ2

MJ0GJ3

MJ0GJ4

CLP Organic ID



NU

NU

NU

NU

NU

NU

NU

NU

E & E Sample ID



NU

NU

NU

NU

NU

NU

NU

NU

Station Location



EPWP01SS

EPWP02SS

EPWP03SS

EPWP04SS

EPWP05SS

EPTP01SS

EPTP02SS

EPTP03SS

Sample Depth (inches)



0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6

Description

Background

Waste Rock Pile

Tailings Pile

TAL Metals (mg/kg)

Aluminum

18100

1740 JL

1680 JL

978 JL

4180 JL

2520 JL

3150 JL

7240 JL

5140 JL

Arsenic

68.2

9.4 JH

9.4 JH

9.0 JH

27.7 JH

12.6 JH

19.6 JH

36.6 JH

14.6 JH

Barium

548

12.9 IB

14.2 JB

11.7 JB

12.3 JB

12.1 JB

11.1 JB

38.7 JB

28.2 JB

Beryllium

0.89 JB
(1.06 SQL)

0.29 JB

0.30 JB

0.36 JB

U.

0.51 JB

0.81 JB

L5

0.79 JB

Cadmium

7.8

7.6 JL

8.0 JL

6.5 JL

17.2 JL

10.5 JL

13.0 JL

25.0 JL

8.7 JL

Calcium

118000

144000 JL

146000 JL

143000 JL

42400 JL

77100 JL

67600 JL

22400 JL

72900 JL

Chromium

29.0

5.0 JL

4.9 JL

8.2 JL

12.9 JL

7.8 JL

10.4 JL

15.7 JL

15.4 JL

Cobalt

8.6 IB
(63 SQL)

1.3 JB

1.4 JB

1.5 JB

2.3 JB

2.5 JB

2.1 JB

7.8 JB

4.5 JB

Copper

55.2

7.3 JL

8.3 JL

7.5 JL

18.0 JL

9.8 JL

14.4 JL

26.3 JL

13.6 JL

Iron

25200

26500 JL

28000 JL

30700 JL

140000 JL

57600 JL

111000 JL

161000 JL

63900 JL

Lead

183

8110

14000

4490

50100

29300

26000

23700

15800

Magnesium

17900

94900 JL

95800 JL

94300 JL

26700 JL

49000 JL

42300 JL

13300 JL

44900 JL

Manganese

1370

753 JL

794 JL

871 JL

1540 JL

857 JL

853 JL

4810 JL

1530 JL

Mercury

0.06 JB
(0.11 SQL)

0.28

0.42

0.45

0.31

0.20

0.28

0.69

0.14

Nickel

58.4

8.6 JL

8.9 JL

14.0 JL

34.0 JL

19.0 JL

25.0 JL

48.6 JL

28.6 JL

Potassium

11660

101 JB

91.7 JB

53.9 JB

88.9 JB

83.0 JB

85.1 JB

238 JB

307 JB

Selenium

1.5 JL

R

R

R

R

R

R

R

R

Silver

6.7

0.32 JB

0.24 JB

0.31 JB

2.3

1.3 JB

1.7 JB

3.7

1.3 JB

Thallium

1.4 U

1.7 JB

1.1 JB

1.9 JB

10.1

3.7

7.4

17.6

5.6

Vanadium

51.2

19.4 JL

17.6 JL

23.1 JL

30.6 JL

17.5 JL

25.7 JL

57.3 JL

33.2 JL

Zinc

835

2000 JK

2360 JK

1180 JK

33800 JK

13300 JK

12000 JK

22000 JK

6030 JK

6-115

Page 1 of 3


-------


Table 6-19





ELECTRIC POINT MINE/MILL



SURFACE SOIL SAMPLES ANALYTICAL RESULTS SUMMARY

UPPER COLUMBIA RIVER MINES AND MILLS



PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON



EPA Sample ID



01254188

01254189

01254190

CLP Inorganic ID



MJ0GH7

MJ0GH8

MJ0GH9

CLP Organic ID



NU

NU

NU

E & E Sample ID



NU

NU

NU

Station Location



EPMS01SS

EPMS03SS

EPMS04SS

Sample Depth (inches)



0-6

0-6

0-6

Description

Background

Mill Soil

TAL Metals (mg/kg)

Aluminum

18100

2940 JL

2590 JL

2920 JL

Arsenic

68.2

26.1 JH

21.7 JH

13.7 JH

Barium

548

19.6 JB

18.5 JB

17.4 JB

Beryllium

0.89 IB

1.1

1.1 JB

0.56 JB



(1.06 SQL)







Cadmium

7.8

6.8 JL

5.4 JL

6.4 JL

Calcium

118000

45900 JL

62000 JL

86800 JL

Chromium

29.0

11.3 JL

5.4 JL

11.2 JL

Cobalt

8.6 JB

1.5 JB

0.75 JB

2.7 JB



(63 SQL)







Copper

55.2

17.1 JL

13.7 JL

10.5 JL

Iron

25200

113000 JL

88400 JL

61700 JL

Lead

183

94500

11200

97800

Magnesium

17900

28400 JL

38500 JL

51500 JL

Manganese

1370

1510 JL

1430 JL

1170 JL

Mercury

0.06 IB

0.27

0.16

0.16



(0.11 SQL)







Nickel

58.4

18.9 JL

15.5 JL

14.7 JL

Potassium

11660

113 JB

92.0 JB

154 JB

Selenium

1.5 JL

R

R

R

Silver

6.7

2.2 JB

1.5 JB

1.5 JB

Thallium

1.4 U

7.5

6.3

3.3

Vanadium

51.2

50.2 JL

39.3 JL

26.6 JL

Zinc

835

5850 JK

10600 JK

5080 JK

6-116

Page 2 of 3


-------
Note:	Bold type indicates sample concentration is above the detection limit.

Underlined type indicates the sample results is significant as defined in Section 5.

Key:

B	= The reported concentration is between the instrument detection limit and the contract required detection limit.

CLP	= Contract Laboratory Program.

E & E	= Ecology and Environment, Inc.

EP	= Electric Point Mine/Mill.

EPA	= United States Environmental Protection Agency.

H	= High bias.

ID	= Identification.

J	= The analyte was positively identified. The associated numerical value is an estimate.

K	= Unknown bias.

L	= Low bias.

mg/kg	= Milligrams per kilogram.

MS	= Mill soil.

NU	= Not utilized.

R	= The data are unusable for all purposes.

SQL	= Sample quantitation limit.

SS	= Surface soil.

TAL	= Target Analyte List.

TP	= Tailings pile.

U	= The analyte was not detected. The associated numerical value is the contract required detection limit.

WP	= Waste Rock Pile.

6-117

Page 3 of 3


-------






Table 6-20











GLADSTONE MINE/MILL









SURFACE SOIL SAMPLES ANALYTICAL RESULTS SUMMARY





UPPER COLUMBIA RIVER MINES AND MILLS







PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS







STEVENS COUNTY,

WASHINGTON





EPA Sample ID



01254179

01254180

01254181

01254182

01254183

01254184

CLP Inorganic ID



MJ0GG8

MJ0GG9

MJ0GH0

MJ0GH1

MJ0GH2

MJ0GH3

CLP Organic ID



NU

NU

NU

NU

NU

NU

E & E Samnle TD



Nil

Nil

NU

NU

NU

NU

Location ID



GLTP01SS

GLTP02SS

GLTP03SS

GLMS01SS

GLMS02SS

GLMS03SS

Sample Depth (inches)



0-6

0-6

0-6

0-6

0-6

0-6

Description

Background

Tailings Pile

Mill Soil

TAL Metals (mg/kg)

Aluminum

18100

2370 JL

2660 JL

4270 JL

4410 JL

3600 JL

5950 JL

Antimony

1.5 IB
(15.1 SQL)

17.7 JL

8.7 IB

3.9 IB

1.3 IB

2.1 IB

1.2 IB

Arsenic

68.2

65.4 JH

55.9 JH

41.3 JH

21.6 JH

19.8 JH

22.4 JH

Barium

548

9.7 IB

14.0 IB

33.9 IB

29.3 IB

20.3 IB

45.9

Beryllium

0.48 IB
(6.3 SQL)

2.1

2.7

1.7

1.2

1.2 IB

1.4

Cadmium

7.8

14.9 JL

9.2 JL

7.7 JL

6.4 JL

7.9 JL

5.4 JL

Calcium

118000

2250 JL

2920 JL

60300 JL

55800 JL

48200 JL

52900 JL

Chromium

29.0

11.8 JL

11.3 JL

8.5 JL

7.5 JL

8.1 JL

7.6 JL

Cobalt

8.6 IB
(63 SQL)

0.29 U

0.28 U

1.0 IB

1.9 IB

1.5 IB

2.4 IB

Copper

55.2

47.2 JL

38.6 JL

23.9 JL

15.6 JL

16.1 JL

17.0 JL

Iron

25200

367000 JL

247000 JL

153000 JL

86300 JL

84800 JL

82600 JL

Lead

183

94000

90400

27100

35200

20300

22600

Magnesium

17900

1150 IB

1600 JL

36400 JL

33700 JL

29000 JL

32500 JL

Manganese

1370

2510 JL

3180 JL

2210 JL

2050 JL

1910 JL

1880 JL

Mercury

0.06 IB
(0.11 SQL)

0.28

0.30

0.19

0.25

0.20

0.11 IB

Nickel

58.4

28.6 JL

28.3 JL

22.5 JL

18.6 JL

18.4 JL

19.2 JL

Potassium

11660

75.9 IB

124 IB

221 IB

215 IB

305 IB

491 IB

Selenium

1.5 JL

R

R

R

R

R

R

Silver

6.7

6.2

5.3

1.9 IB

1.6 IB

1.6 IB

1.5 IB

Thallium

1.4 U

23.5

21.2

11.3

6.0

7.4

4.6

Vanadium

51.2

78.7 JL

73.5 JL

57.2 JL

48.3 JL

46.6 JL

48.0 JL

Zinc

835

10500 JK

9880 JK

6560 JK

6370 JK

6790 JK

6020 JK

Note: Bold type indicates sample concentration is above the detection limit.

Underlined type indicates the sample results is significant as defined in Section 5.	Page 1 of 2

6-118


-------
Key:

B	= The reported concentration is between the instrument detection limit and the contract required detection limit.

CLP	= Contract Laboratory Program.

E & E	= Ecology and Environment, Inc.

EPA	= United States Environmental Protection Agency.

GL	= Gladstone Mine/Mill.

H	= High bias.

ID	= Identification.

J	= The analyte was positively identified. The associated numerical value is an estimate.

K	= Unknown bias.

L	= Low bias.

mg/kg	= Milligrams per kilogram.

MS	= Mill soil.

NU	= Not utilized.

R	= The data are unusable for all purposes.

SQL	= sample quantitation limit.

SS	= Surface soil.

TAL	= Target Analyte List.

TP	= Tailings pile.

U	= The analyte was not detected. The associated numerical value is the contract required detection limit.

6-119

Page 2 of 2


-------


Table 6-21







RED TOP MINE





SURFACE SOIL SAMPLES ANALYTICAL RESULTS SUMMARY

UPPER COLUMBIA RIVER MINES AND MILLS



PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON



EPA Sample ID



01254153

01254154

01254155

CLP Inorganic ID



MJ0GE2

MJ0GE3

MJ0GE4

CLP Organic ID



NU

NU

NU

E & E Sample ID



NU

NU

NU

Location ID



RDWP01SS

RDWP02SS

RDWP03SS

Sample Depth (inches)



0-6

0-6

0-6

Description

Background

Waste Rock Pile

TAL Metals (mg/kg)

Aluminum

18100

947

1920

6780

Antimony

1.5 JB
(15.1 SQL)

1930

81.7

183

Arsenic

68.2

142 JL

155 JL

69.6 JL

Barium

548

41.0 JB

41.7 JB

201

Cadmium

7.8

177 JH

111 JH

124 JH

Calcium

118000

239000

128000

176000

Chromium

29.0

4.4

8.3

42.2

Cobalt

8.6 JB
(63 SQL)

4.3 JB

2.4 JB

9.0 JB

Copper

55.2

1080

145

225

Iron

25200

15000

55900

21800

Lead

183

28900

14600

14700

Magnesium

17900

10700

14600

21300

Manganese

1370

9700

14000

14800

Mercury

0.06 JB
(0.11 SQL)

lii

0.81

0.40

Nickel

58.4

7.6 JB

11.1

43.4

Potassium

11660

363 JB

478 JB

2890

Selenium

1.5 JL

0.73 U

1.9

0.71 U

Silver

6.7

58.4

30.4

20.2

Vanadium

51.2

2.1 JB

7.0 JB

22.8

Zinc

835

15600

15700

10700

Note:	Bold type indicates sample concentration is above the detection limit.

Underlined type indicates the sample results is significant as defined in Section 5.

Key:

B	= The reported concentration is between the instrument detection limit and the contract required detection limit.

CLP	= Contract Laboratory Program.

E & E	= Ecology and Environment, Inc.

EPA	= United States Environmental Protection Agency.

H	= High bias.

ID	= Identification.

J	= The analyte was positively identified. The associated numerical value is an estimate.

L	= Low bias.

mg/kg	= Milligrams per kilogram.

NU	= Not utilized.

RD	= Red Top Mine.

SS	= Surface soil.

TAL	= Target Analyte List.

U	= The analyte was not detected. The associated numerical value is the contract required detection limit.

WP	= Waste Rock Pile.

6-120


-------






Table 6-22













ANDERSON CALHOUN MINE/MILL









SURFACE SOIL SAMPLES ANALYTICAL RESULTS SUMMARY





UPPER COLUMBIA RIVER MINES AND MILLS PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS





STEVENS COUNTY, WASHINGTON







EPA Sample ID

01374189

01374170

01374171

01374172

01374168

01374169

01374179

01374180

CLP Inorganic ID

MJ0KK7

MJ0KH9

MJ0KJ0

MJ0KJ1

MJ0KH7

MJ0KH8

MJ0KJ8

MJ0KJ9

CLP Inorganic ID

NU

NU

NU

NU

J0KH1

J0KH2

J0KH6

J0KH7

Station Location ID

ANBK02SS

ANTP01SS

ANTP02SS

ANTP03SS

ANSS01SS

ANSS02SS

ANSS03SS

ANSS04SS

Sample Depth (inches)

0-6

0-6

0-6

0-6

0-6

0-6

0-6

0-6

Description

Background

Tailings Pile

Stained Soil

TAL Metals (mg/kg)

Aluminum

16400

3890

4030

4180

1780

2520

749

929

Arsenic

8.3 JL

11.4

7.1

6.9

8.7

17.4

5.2

5.0

Barium

470

117000

115000

122000

3330

5350

83600

97800

Cadmium

3.4

6.0

4.7

4.3

124

129

2.9

3.2

Calcium

8210 JK

70500

60400

59200

109000

75000

30600

36500

Chromium

15.6

46.8

34.1

30.9

12.5

76.5

18.3

21.2

Cobalt

6.0 IB
(10.9 SQL)

14.2

13.4

14.1

28.3

34.8

10.2 JB

12.1

Copper

11.8

55.0

41.6

39.2

73.8

115

31.0

30.5

Iron

19600

5780

3290

2740

12600

21400

2090

1990

Lead

152

33.3 JK

15.5 JK

11.2 JK

2130

2190

381 JK

25.8 JK

Magnesium

4160

12500

5110

4130

68600

42400

2200

2890

Manganese

922

80.2

46.0

43.8

203

220

30.3

30.5

Mercury

0.05 U

0.19

0.13

0.12

0.18

0.35

0.06 JB

0.06 JB

Nickel

14.4

90.4

71.8

67.3

12.7

24.5

47.5

53.9

Potassium

1160

297 JB

237 JB

233 JB

238 JB

355 JB

170 JB

186 JB

Selenium

0.74 U

4.9 JL

4.0 JL

3.8 JL

1.4 JL

2.9 JL

2.8 JL

3.5 JL

Silver

1.3 IB
(2.2 SQL)

0.69 U

0.64 U

0.64 U

12.0

14.8

0.64 U

0.64 U

Vanadium

27.4

270

183

172

10.6

21.7

94.1

112

Zinc

835

770

534

457

44900

49000

318

339

Note:	Bold type indicates sample concentration is above the detection limit.

Underlined type indicates the sample results is significant as defined in Section 5.

Key:

Page 1 of2

6-121


-------
AN	= Anderson Calhoun Mine/Mill.

B	= The reported concentration is between the instrument detection limit and the contract required detection limit.

BK	= Background.

CLP	= Contract Laboratory Program.

E & E	= Ecology and Environment, Inc.

EPA	= United States Environmental Protection Agency.

ID	= Identification.

J	= The analyte was positively identified. The associated numerical value is an estimate.

K	= Unknown bias.

L	= Low bias.

mg/kg	= Milligrams per kilogram.

NU	= Not utilized.

SQL	= Sample quantitation limit.

SS	= Surface soil.

SS	= Stained soil.

TAL	= Target Analyte List.

TP	= Tailings pile.

U	= The analyte was not detected. The associated numerical value is the contract required detection limit.

6-122

Page 2 of 2


-------




Table 6-23







ANDERSON CALHOUN MINE/MILL





SEDIMENT SAMPLES ANALYTICAL RESULTS SUMMARY





UPPER COLUMBIA RIVER MINES AND MILLS



PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS





STEVENS COUNTY, WASHINGTON





EPA Sample ID

01374181

01374173

01374174

01374175

01374178

CLP Inorganic ID

MJ0KJ5

MJ0KJ2

MJ0KJ3

MJ0KJ4

MJ0KJ7

CLP Organic ID

J0KH3

NU

NU

NU

J0KH5

E & E Sample ID

01090427

NU

NU

NU

01090429

Station Location ID

ANBK01SD

ANTP04SD

ANTP05SD

ANTP06SD

ANPP01SD

Sample Depth (inches)

0-6

0-6

0-6

0-6

0-6

Description

Background

T ailings Pile

PPE 1

TAL Metals (mg/kg)

Aluminum

4070

3620

1810

1720

7580

Arsenic

2.7 JB
(3.3 SQL)

10.0

43

M

6.8 JB

Barium

101

15400

3980

9080

348 JK

Cadmium

1.2 JB
(1.7 SQL)

6A

47

M

4.1 JB

Calcium

109000

74000

93500

107000

91300 JK

Chromium

9.9

55.5

11.1

10

20.8 JK

Cobalt

2.6 JB
(16.7 SQL)

18.7

0.98 U

1.3 JB

6.9 JB

Copper

6.9 B
(8.3 SQL)

67.4

30.7

49.4

23.2 JK

Iron

9200

3960

11300

17500

16600 JK

Lead

15.3 JK

12.3 JK

317 JK

320 JK

30.4 JK

Magnesium

3780

5840

59800

65300

5660 JK

Manganese

239

67

186

204

370 JK

Mercury

0.08 U

0.17

0.08 U

0.11 u

R

Nickel

10.8 JB
(13.4 SQL)

106

15.5

18.4

25.1 JB

Selenium

1.4 JB
(1.7 SQL)

6.7 JL

0.6 JB

1.1 JB

10.2 JK

Vanadium

15.9 JB
(16.7 SQL)

294

16.7

22

19.4 JB

Zinc

76.3

723

2150

3250

343 JK

Note: Bold type indicates sample concentration is above the detection limit.

Underlined type indicates the sample results is significant as defined in Section 5.

Key:

AN	= Anderson Calhoun Mine/Mill.

B	= The reported concentration is between the instrument detection limit and the contract required detection limit.

BK	= Background.

CLP	= Contract Laboratory Program.

E & E	= Ecology and Environment, Inc.

EPA	= United States Environmental Protection Agency.

ID	= Identification.

J	= The analyte was positively identified. The associated numerical value is an estimate.

K	= Unknown bias.

L	= Low bias.

mg/kg	= Milligrams per kilogram.

|J.g/kg	= Micrograms per kilogram.

NU	= Not utilized.

PPE	= Probable point of entry.

R	= The data are unusable for all purposes.

SD	= Sediment.

SQL	= Sample quantitation limit.

TAL	= Target Analyte List.

TP	= Tailings pile.

U	= The analyte was not detected. The associated numerical value is the contract required detection limit.

6-123


-------


Table 6-24





IROQUOIS MINE



SURFACE SOIL SAMPLES ANALYTICAL RESULTS SUMMARY

UPPER COLUMBIA RIVER MINES AND MILLS

PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON



EPA Sample ID



01254358

01254359

CLP Inorganic ID



MJ0FJ7

MJ0FJ8

CLP Organic ID



NU

NU

E & E Sample ID



NU

NU

Location ID



IRWP01SS

IRWP02SS

Sample Depth (inches)



0-6

0-6

Description

Background

Waste Rock Pile

TAL Metals (mg/kg)

Aluminum

18100

2300

1080

Antimony

1.5 JB

1.3 JB

1.3 JB



(15.1 SQL)





Arsenic

68.2

10.8

10.5

Barium

548

37.5 JB

13.1 JB

Cadmium

7.8

39.1

33.2

Calcium

118000

161000

155000

Chromium

29.0

3.6

2.1

Cobalt

8.6 JB

1.5 JB

0.62 JB



(63 SQL)





Copper

55.2

7.4 JL

5.2 JL

Iron

25200

7140

7930

Lead

183

277

358

Magnesium

17900

107000

104000

Manganese

1370

277

232

Mercury

0.06 JB

0.49

0.25



(0.11 SQL)





Nickel

58.4

5.6 JB

4.7 JB

Potassium

11660

360 JB

145 JB

Selenium

1.5 JL

0.72 U

1.4

Silver

6.7

0.40 JB

0.55 JB

Vanadium

51.2

12.9

12.6

Zinc

835

12300

10000

Note:	Bold type indicates sample concentration is above the detection limit.

Underlined type indicates the sample results is significant as defined in Section 5.

Key:

B	= The reported concentration is between the instrument detection limit and the contract required detection limit.

CLP	= Contract Laboratory Program.

E & E	= Ecology and Environment, Inc.

EPA	= United States Environmental Protection Agency.

ID	= Identification.

IR	= Iroquois Mine.

J	= The analyte was positively identified. The associated numerical value is an estimate.

L	= Low bias.

mg/kg	= Milligrams per kilogram.

NU	= Not utilized.

SS	= Surface soil.

TAL	= Target Analyte List.

U	= The analyte was not detected. The associated numerical value is the contract required detection limit.

WP	= Waste Rock Pile.

6-124


-------


Table 6-25



MELROSE MINE
SEDIMENT SAMPLE ANALYTICAL RESULTS SUMMARY

UPPER COLUMBIA RIVER MINES AND MILLS
PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS
STEVENS COUNTY, WASHINGTON

EPA Sample ID



012541551

CLP Inorganic ID



MJ0GE0

CLP Organic ID



NU

E&E Sample ID



NU

Location ID



MLPP01SD

Sample Depth (inches)



0-8

Sample Description

Background

PPE 1

TAL Metals (mg/kg)

Aluminum

20200

4690

Arsenic

13.0

25.5 JL

Barium

450

142

Cadmium

3.4

22.8 JH

Calcium

109000

81300

Chromium

32.3

16.1

Cobalt

11.9

4.4 JB

Copper

69.3

38.2

Iron

27900

11900

Lead

124

25.8

Magnesium

33500

4340

Manganese

673

216

Nickel

31.9

77.2

Potassium

3920 JK

606 JB

Vanadium

47.4

32.0

Zinc

239

1650

Note:	Bold type indicates sample concentration is above the detection limit.

Underlined type indicates the sample results is significant as defined in Section 5.

Key:

B	= The reported concentration is between the instrument detection limit and the contract required detection limit.

CLP	= Contract Laboratory Program.

E & E	= Ecology and Environment, Inc.

EPA	= United States Environmental Protection Agency.

H	= High bias.

ID	= Identification.

J	= The analyte was positively identified. The associated numerical value is an estimate.

K	= Unknown bias.

L	= Low bias.

mg/kg	= Milligrams per kilogram.

Jitg/kg	= Micrograms per kilogram.

ML	= Melrose Mine.

NU	= Not utilized.

PCBs	= Polychlorinated biphenyls.

PPE	= Probable point of entry.

SD	= Sediment.

TAL	= Target Analyte List.

PP	= Probable point of entry.

6-125


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7. EPA CLP ANALYTICAL RESULTS, SURFACE WATER
MIGRATTON/EXPOSUREPATHWAYS, AND TARGETS

The following sub-sections describe the surface water migration pathways for the 18 mines/mills
that were sampled, tributaries that were sampled, potential targets within the range of influence of these
mines/mills (Figures 7-1 through 7-18), and a discussion of sample results evaluated in accordance with
criteria described in Section 5.1. Analytical data forms from laboratory analyses are provided in
Appendix D.

With the exception of the LeRoi/Northport Smelter and Deep Creek Mine, an evaluation of the
groundwater migration, soil exposure, and air migration pathways for all mine/mill sites sampled was not
conducted as part of this investigation. Additional to an evaluation of the surface water migration
pathway, an evaluation of the soil exposure pathway also was conducted as part of the investigations at
the LeRoi/Northport Smelter and Deep Creek Mine.

Refer to Table 7-1 for alist of PPEs for those sampled mines/mills that contained a PPE.

7.1 DAISY MINE

7.1.1 Surface Water Pathway Description

The potential source areas at the Daisy Mine include a tailings pile measuring approximately
150 feet at the base, 30 feet in height with a slope of approximately 35%, and a depth of approximately
45 feet, and a shaft. The shaft measured 10 feet by 10 feet by unknown depth. A wet area originating
from the shaft extended south approximately 25 feet. From this source area, it is approximately another
70 feet overlandto Magee Creek (PPE 1; Figure 6-1).

From the source area, drainage flows overland approximately 50 feet to the PPE in a ditch. The
surface water target distance limit (TDL) continues approximately 0.08 mile in the ditch to an unnamed
tributary. The unnamed tributary empties to Magee Creek 2.95 miles downstream. Magee Creek empties
into the Columbia River another 2.18 miles downstream. The surface water TDL concludes 9.79 miles
downstream in the Columbia River.

10:START-2\01020028\S759

7-1


-------
The unnamed tributary is assumed to be a minimal stream with flow rates less than 10 cfs.

Magee Creek is assumed to be a small to moderate stream with flow rates between 10 cfs and 100 cfs.
Columbia River at the U.S.-Canada border is 116,500 cfs (USGS2002).

The average annual precipitation is 17.20 inches in Colville, Washington (WRCC 2002). The
2-year, 24-hour rainfall event for the area ranges from 1.4 to 2.0 inches (NOAA 1973).

Soils in the area of Daisy Mine were mapped as Dehart-Rock outcrop complex, 40 to 65 percent
slopes on side slopes and foothills. The Dehart soil is very deep and somewhat excessively drained. The
permeability of the soil is moderately rapid, and the available water capacity is low. Runoff is very
rapid, and the hazard of water erosion is very high. (USDA 1982)

Approximately 279 upgradient acres of land is expected to drain through the source area at the
mine (USGS 1985). The drainage area of sources is approximately 1 acre (USGS 1985).

The Daisy Mine does not lie in a flood plain (FEMA 1990).

No containment features such as runoff controls exist at the property.

7.2 L- B AR/N O RIH W ES T MAGNESITE
7.2.1 Surface Water Pathway Description

The potential source areas at L-Bar/Northwest Magnesite include an above-grade magnesite
residue pile, approximately 30 feet deep and 17 acres in area, and inadequate storage of flux bar and flux
bar residue. The magnesite pile is adjacent to the Main Ditch which flows into the Colville River
approximately 1,000 feet north of the confluence of the magnesite pile and the Main Ditch (Figure 6-3).

For the magnesite and flux bar residue pile, the PPE is located in the West Ditch. The overland
distance between the source area and the West Ditch is less than 50 feet. The West Ditch flows
approximately 0.32 mile to the confluence with the Colville River. The surface water TDL concludes
14.68 miles downstream in the Colville River. The magnesite and flux bar residue pile also used to drain
through the Main Ditch, but a water retention system has been installed in the ditch to eliminate
discharge to the Colville River.

The West Ditch is assumed to be a minimal stream with a flow rate less than 10 cfs. The average
annual flow rate of the Colville River near Blue Creek is 110 cfs (USGS 2002).

The average annual precipitation is 17.20 inches in Colville, Washington (WRCC 2002). The
2-year, 24-hour rainfall event for the area ranges from 1.4 to 2.0 inches (NOAA 1973).

Soils in the area of L-Bar/Northwest Magnesite were mapped as Colville silt loam, drained in
bottom lands. The Colville soil is very deep, artificially drained soil. The permeability of the soil is

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moderately slow, and the available water capacity is very high. Runoff is very slow, and there is no
hazard of water erosion. (USDA 1982)

Approximately 200,000 upgradient acres of land is expected to drain through the source area at
the mine (USGS 1984). The drainage area of sources is approximately 16 acres (USGS 1984).

L-Bar/Northwest Magnesite lies within a 100-year flood plain (FEMA 1990).

Containment features such as runoff controls exist at the property.

7.3 NORTHWEST ALLOYS

7.3.1 Surface Water Pathway Description

The potential source areas at Northwest Alloys include products and byproducts in the
production of magnesium, silicon, and ferrosilicon. Waste products generated were either recycled, sold
as product or thread, or buried on site. None of the wastes were regarded as hazardous under RCRA but
were classified as regulated wastes under Ecology Dangerous Waste Regulations (E & E 1988). There is
no overland flow from the site directly into the Colville River due to topography. A potential overland
flow exists on the southern portion of the site. The overland flow potentially flows through ditches into
Stensgar Creek (PPE 1). Stensgar Creek flows into the Colville River (Figure 6-5).

The average annual precipitation is 17.20 inches in Colville, Washington (WRCC 2002). The
2-year, 24-hour rainfall event for the area ranges from 1.4 to 2.0 inches (NOAA 1973).

Soils in the area of Northwest Alloys were mapped as Colville silt loam, drained; Donavan loam,
8 to 25 percent slopes; Hodgson silt loam, 3 to 15 percent slopes; Koerling fine sandy loam, 5 to 15
percent slopes; Martella silt loam, 0 to 5 percent slopes; Martella silt loam, 5 to 15 percent slopes; Rock
outcrop-Donavan complex, 30 to 65 percent slopes; and Springdale gravelly sandy loam, 0 to 15 percent
slopes. The Colville silt loam, drained, is very deep, artificially drained soil on bottom lands. The
permeability of the soil is moderately slow, and the available water capacity is very high. Runoff is very
slow, and there is no hazard of water erosion. The Donavan loam, 8 to 25 percent slopes is very deep,
well drained soil on toe slopes and foot slopes of foothills. The permeability of the soil is moderate, and
the available water capacity is high. Runoff is medium, and the hazard of water erosion is moderate.
Hodgson silt loam, 3 to 15 percent slopes is very deep, moderately well drained soil on undulating
terraces. The permeability of the soil is moderately slow, and the available water capacity is very high.
Runoff is slow, and the hazard of water erosion is slight to moderate. Koerling fine sandy loam, 5 to 15
percent slopes is very deep, moderately well drained soil on terraces. The permeability of the soil is
moderate, and the available water capacity is very high. Runoff is medium, and the hazard of water

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erosion is moderate. Martella silt loam, 0 to 15 percent slopes is very deep, moderately well drained soil
on terraces. The permeability of the soil is moderately slow, and the available water capacity is very
high. Runoff is slow, and the hazard of water erosion is slight to moderate. Martella silt loam, 5 to
15 percent slopes is very deep, moderately well drained soil on undulating terraces. The permeability of
the soil is moderately slow, and the available water capacity is very high. Runoff is medium, and the
hazard of water erosion is moderate. Rock outcrop-Donavan complex, 30 to 65 percent slopes are on
side slopes and foothills. The permeability of the soil is moderate, and the available water capacity is
high. Runoff is very rapid, and the hazard of water erosion is very high. Springdale gravelly sandy loam,
0 to 15 percent slopes is very deep, somewhat excessively drained soil on terraces. The permeability of
the soil is moderately rapid to the layer of extremely cobbly coarse sand. The available water capacity is
low. Runoff is slow, and the hazard of water erosion is slight. (USDA 1982)

From the site, drainage enters a ditch, at PPE 1 for the surface water pathway. The ditch flows
an estimated 0.33 mile before entering Stensgar Creek. The surface water TDL continues 0.79 mile in
Stensgar Creek to the Colville River. The surface water TDL concludes 13.88 miles downstream in the
Colville River.

Stensgar Creek and the ditch are assumed to be minimal streams with flow rates less than 10 cfs.
The average annual flow rate of the Colville River at Blue Creek is 110 cfs (USGS2002).

Approximately 100,000 upgradient acres of land is expected to drain through the source area at
the mine. The drainage area of sources is approximately 79 acres. (USGS 1984)

Northwest Alloys lies within a 100-year flood plain (FEMA 1990).

Containment features such as runoff controls exist at the property.

7.4 NAPOLEON MINE/MILL

7.4.1 Surface Water Pathway Description

The potential source areas at the Napoleon Mine/Mill include an adit measuring 5 feet by 4 feet
located south of the dirt road entrance. The adit discharge flows across the dirt road, down the hillside
approximately 120 feet before entering an intermittent creek (PPE 1; Figure 6-7). The surface water
TDL continues 0.73 mile in the intermittent creek to Kettle River. Kettle River empties into the
Columbia River another 4.39 miles downstream. The surface water TDL concludes 9.88 miles
downstream in the Columbia River.

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The intermittent creek is assumed to be a minimal stream with a flow rate less than 10 cfs. Kettle
River is assumed to be a small to moderate stream with an average flow rate between 10 cfs and 100 cfs.
Columbia River at the U.S.-Canada border has a flow rate of 116,500 cfs (USGS2002).

The average annual precipitation is 19.43 inches in Northport, Washington (WRCC 2002). The
2-year, 24-hour rainfall event for the area ranges from 1.4 to 2.0 inches (NOAA 1973).

Soils in the area of Napoleon Mine/Mill were mapped as Aits stony loam, 40 to 65 percent
slopes. The soil is very deep, well drained soil on side slopes and foothills. The permeability of the soil
is moderately slow, and the available water capacity is very high. Runoff is very rapid, and the hazard of
water erosion is very high. (USDA 1982)

Approximately 525 upgradient acres of land are expected to drain through a source area at the
mine (USGS 1969a). The drainage area of sources is approximately 1 acre (USGS 1969a).

The Napoleon Mine/Mill does not lie in a flood plain (FEMA 1990).

No containment features such as run off control exist at the property.

7.5 VAN S TO NE MINE/MILL

7.5.1 Surface Water Pathway Description

The potential source areas at the Van Stone Mine/Mill include waste rock storage area, two
tailings piles, an open pit, buildings, and stained soil areas (Figures 6-9 through 6-11).

The waste rock storage area was constructed by end dumping to the south contour from the open
pit haul road. The eastern toe of the waste rock storage area consists mostly of larges and is located less
than 100 feet from the Northeast Fork of Onion Creek. Slopes on the north side of the haul road consist,
in part, of colluvial overburden. Depth and quantity of overburden has yet to be determined.

(Beacon 1999)

The tailings embankments consist of steep sided erodable tailings sands. In some locations the
slopes are heavily rilled, particulary along the south and west faces. (Beacon 1999)

A rock-lined spillway and discharge channel has been installed in the extreme northeast corner of
the main tailings impoundment to direct any excess accumulated rainwater to the adjacent drainage.

Tailings area water quality is monitored every 90 days and is reported to be suitable for discharge under
the Water Discharge Permit or can be used for irrigation purposes.

A seepage pond is located adjacent to the tailings facility.

The open pit, located in the most southern portion of the area is flooded to an elevation of
3,510 feet or 170 feet above the current pit bottom. The rim of the open pit and portions of the top bench

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currently support vegetation. The water in the open pit is separated from a tributary to the Northeast
Fork of Onion Creek by a narrow rock-fill berm. The water level in the open pit is static at 3,510 feet
elevation and excess water seeps through this rock-fill to the adjacent creek (PPE 3). (Beacon 1999)

Six areas of stained soil were noted on the property. The first area was near a liquid propane
tank south of the mill building. The second area was near elevated transformers adjacent to the mill
building. At this location, the soil was stained orange and green. The third area was near an AST with
secondary containment near the entrance to the mine/mill. The containment area was filled with water
and smelled of diesel. No sheen was noted. The secondary containment had been breached. The fourth
area was on a concrete pad with staged transformers and stained soil south of the liquid propane tank.
The fifth area was near staged 5 5-gallon drums surrounded by stained soil west of the mine/mill
buildings and south of the Roundup Powder Company abandoned building. The sixth area was near
another AST area surrounded by stained soil located east of the shed and staged 5 5-gallon drums.

Several unnamed creeks were located adjacent to the property. One unnamed creek was located
south of the mine pit water and could not be accessed due to safety concerns. A second unnamed creek
was located at the southwest portion of the old tailings pile (PPE 4). A third unnamed creek was located
on Boise Cascade property; no sample was collected due to lack of access. A fourth unnamed creek was
located adjacent to the tailings pile near the entrance to the mine/mill (PPE 1 and PPE 2). Excess water
from the on-site open pit seeps through the pit berm to an adjacent creek (PPE 3).

A number of public, private, and commercial interests access the mine/mill access road. Boise
Cascade Forest District maintains an easement over the road to access their timber holdings. Washington
Water Power maintains an easement over the road to access a substation located on the mine/mill
property. There are residences near the road junction and the DNRuses the road for fire control.

(Beacon 1999)

For the waste rock and stained soil source areas, drainage flows overland approximately 800 feet
to the PPE in an unnamed tributary. The open pit is located immediately adjacent to this PPE. Excess
water in the pit seeps through the rock berm to the unnamed tributary. From the PPE, the surface water
pathway TDL continues 2.17 miles in the unnamed tributary to the confluence with Onion Creek. Onion
Creek empties into the Columbia River another 8.89 miles downstream. The surface water TDL
concludes 3.94 miles downstream in the Columbia River.

For the tailings pile source area, drainage flows overland approximately 950 feet to the PPE in an
unnamed tributary. From the PPE, the surface water pathway TDL continues 0.90 mile to the

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confluence with Onion Creek. Onion Creek empties into the Columbia River another 8.89 miles
downstream. The surface water TDL concludes 5.21 miles downstream in the Columbia River.

For the old tailings pile source area, drainage flows overland approximately 950 feet to the PPE
in an unnamed tributary. From the PPE, the surface water pathway TDL continues 1.14 miles to the
confluence with Onion Creek. Onion Creek empties into the Columbia River another 8.89 miles
downstream. The surface water TDL concludes 4.97 miles downstream in the Columbia River.

The unnamed tributary is assumed to be a minimal stream with a flow rate less than 10 cfs.

Onion Creek is assumed to be a small to moderate stream with flow rates between 10 cfs and 100 cfs.
The Columbia River (or Lake Roosevelt) has a flowrate of 116,500 cfs as measured at the U.S.-Canada
border (USGS 2002).

The average annual precipitation is 17.20 inches in Colville, Washington (WRCC 2002). The
2-year, 24-hour rainfall event for the area ranges from 1.4 to 2.0 inches (NOAA 1973).

Soils in the area of Van Stone Mine/Mill were mapped as Merkel stony sandy loam, 40 to 65
percent slopes; Newbell silt loam, 25 to 40 percent slopes; Newbell stony silt loam, 0 to 40 percent
slopes; and Newbell-Rock outcrop complex, 15 to 40 percent slopes. The Merkel stony sandy loam,
40 to 65 percent slopes is very deep, moderately well drained soil on terrace escarpments. The
permeability of the soil is moderately slow, and the available water capacity is very high. Runoff is very
rapid, and the hazard of water erosion is high. The Newbell silt loam, 25 to 40 percent slopes is very
deep, well drained soil on foot slopes of foothills. The permeability of the soil is moderate, and the
available water capacity is very high. Runoff is rapid, and the hazard of water erosion is high. The
Newbell stony silt loam, 0 to 40 percent slopes is very deep, well drained soil on toe slopes and foot
slopes of foothills. The permeability of the soil is moderate, and the available water capacity is very
high. Runoff is rapid, and the hazard of water erosion is high. The Newbell-Rock outcrop complex,
25 to 40 percent slopes are on foot slopes of foothills. The permeability of the soil is moderate, and the
available water capacity is very high. Runoff is rapid, and the hazard of water erosion is high.

(USD A 1982)

Approximately 470 upgradient acres of land are expected to drain through a source area at the
mine (USGS 1969b). The drainage area for the waste rock pile at the site is estimated to be 16 acres
(USGS 1969b).

The Van Stone Mine/Mill does not lie in a flood plain (FEMA 1990).

Containment features such as runoff control exist at the mine pit water at the mine/mill. At
present, the steep outer walls of the tailings piles are subject to surface erosion, as evidenced by the rills

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and gullies developed on the walls. A small berm has been made around the tailings piles to contain
eroded material and is effective in containing eroded material. The owner is testing erosion control
methods on the tailings pile walls. (Boise Cascade Corporation 1997)

7.6 LERO I/NO RIHPORT SMELTER
7.6.1 Surface Water Pathway Description

The potential source areas at the LeRoi/Northport Smelter include an area where slag bricks had
been deposited south of the former smelter operations, and a potential former tailings area west of the
slag brick area. The former tailings pile area was adjacent to a recently constructed ditch (PPE 1;

Figure 6-16).

For the tailings pile, drainage enters a constructed ditch, PPE 1 and PPE 2, for the surface water
pathway. The overland distance between the tailings pile and the ditch is estimated to be less than
100 feet for PPE 2. The tailings pile extends into the ditch at PPE 1. From the PPEs, the surface water
TDL continues approximately 0.05 mile through the constructed ditch, which empties into the Columbia
River. The surface water TDL concludes 14.95 miles downstream in the Columbia River.

The slag pile is located on the shore of the Columbia River (or Lake Roosevelt). The source area
extends into the Columbia River (PPE 3). From PPE 3 the surface water TDL concludes 15 miles
downstream in the Columbia River.

The Columbia River (or Lake Roosevelt) has a flow rate of 116,500 cfs as measured at the U.S.-
Canada border (USGS 2002).

The average annual precipitation is 19.43 inches in Northport, Washington (WRCC 2002). The
2-year, 24-hour rainfall event for the area ranges from 1.4 to 2.0 inches (NOAA 1973).

Soils in the area of LeRoi/Northport Smelter were mapped as Hagen sandy loam, 0 to 15 percent
slopes. The soil is very deep, somewhat excessively drained soil on terraces. The permeability of the
soil is moderately rapid in the upper part and very rapid in the lower part. The available water capacity is
moderate. Runoff is slow. The hazard of water erosion is slight to moderate, and the hazard of wind
erosion is high. (USDA 1982)

Approximately one upgradient acre of land is expected to drain through the source area at the
mine (USGS 1969c). The drainage area of sources is approximately 33 acres (USGS 1969c).

The LeRoi/Northport Smelter lies within a 100-year flood plain (FEMA 1990).

No containment features such as runoff control exist at the property.

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7.6.2 Soil Exposure Pathway Description

A boat launch is located near the slag deposited along the bank of the Columbia River. No
residents are located at the site. No school or day care facility is located within 200 feet of the site.
There are no worker's within 200 feet of any source on site. The LeRoi/Northport Smelter is located
within the city limits of Northport. Based on USGS topographic maps, the START-2 assumes
336 people reside within a 1-mile travel distance from the site. No residents are located at the site. The
nearest residence is located 0.22 miles southwest from the site. No school or day care facility is located
within 200 feet of the site. There are no workers within 200 feet of any source on site. A city park is
located approximately 50 feet from the north boundary of the site. The park is accessed by means of a
road on the southwest corner of the site. Access to the site is not restricted. Sources at the site are not
fenced. No resources such as commercial agriculture, silviculture, or livestock production or grazing
exist on a source area at the site. No wetlands are located on a source area at the site.

7.7 BLACK ROCK MINE/MILL

7.7.1 Surface Water Pathway Description

The potential source areas at the Black Rock Mine/Mill include a waste rock pile, shaft, remnants
of a mill building, and two sorting bins. No PPEs were identified by the START-2 (Figure 6-19).

Although no PPEs exist at the site, the nearest surface water body is Deep Creek, located
approximately 950 feet from the waste rock pile and collapsed mill source areas. From this location, the
surface water TDL continues 7.07 miles in Deep Creek to the confluence with the Columbia River. The
surface water pathway TDL concludes 7.93 miles downstream in the Columbia River.

The average annual precipitation is 19.43 inches in Northport, Washington (WRCC 2002). The
2-year, 24-hour rainfall event for the area ranges from 1.4 to 2.0 inches (NOAA 1973).

Soils in the area of Black Rock Mine/Mill were mapped as Waits-Rock outcrop complex, 40 to
65 percent slopes. The soils in this complex are very deep and well drained on side slopes of foothills.
The permeability of the soil is moderate, and the available water capacity is very high. Runoff is very
rapid, and the hazard of water erosion is very high. (USDA 1982)

Approximately 660 upgradient acres of land is expected to drain through the source area at the
mine (USGS 1992a). The drainage area of sources is approximately 7 acres (USGS 1992a).

The Black Rock Mine/Mill does not lie in a flood plain (FEMA 1990).

No containment features such as runoff control exist at the property.

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7.8	GREAT WES TERN MINE

7.8.1 Surface Water Pathway Description

The potential source areas at the Great Western Mine include three waste rock piles, shaft
systems, and adits. No PPEs were identified by the START-2 (Figure 6-21).

Although, no PPEs exist at the site, the nearest surface water body is an unnamed tributary.

From this location, the surface water TDL continues 0.13 mile in the unnamed tributary to the confluence
with Deep Creek. Deep Creek empties into the Columbia River another 7.36 miles downstream. The
surface water pathway TDL concludes 7.51 miles downstream in the Columbia River.

The average annual precipitation is 19.43 inches in Northport, Washington (WRCC 2002). The
2-year, 24-hour rainfall event for the area ranges from 1.4 to 2.0 inches (NOAA 1973).

Soils in the area of Great Western Mine were mapped as Waits-Rock outcrop complex, 40 to
65 percent slopes. The soils in this complex are very deep and well drained on side slopes of foothills.
The permeability of the soil is moderate, and the available water capacity is very high. Runoff is very
rapid, and the hazard of water erosion is very high. (USDA 1982)

Approximately 400 upgradient acres of land is expected to drain through the source area at the
mine (USGS 1992a). The drainage area of sources is approximately 29 acres (USGS 1992a).

The Great Western Mine does not lie in a flood plain (FEMA 1990).

No containment features such as runoff control exist at the property.

7.9	LAST CHANCE MINE/MILL

7.9.1 Surface Water Pathway Description

The potential source areas at the Last Chance Mine/Mill include two waste rock piles, tailings
pile, shaft, adit, and a seep (Figure 6-23).

The larger waste rock pile was located north of the north shaft and measured 1,320 feet by
75 feet by 2 feet deep. The smaller waste rock pile located west of the north shaft measured 75 feet by
45 feet by unknown depth. A tailings pile surrounding a former house or office and mill building located
west of the waste rock piles measured 600 feet by 105 feet by 3 feet deep. East of the waste rock piles
and the abandoned road the ST ART -2 located north and south shafts and an adit upgradient from the
north shaft. A seep was located near the mouth of the south shaft which flows into the unnamed creek.
Further east of the shafts, an unnamed creek was documented. The adit discharge flowed into the
unnamed creek (PPE 1) and continued west past the waste rock piles, through the tailings pile (PPE 2)
and infiltrated the ground prior to reaching the Colville-Alladin Northport Road. South of the point of

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infiltration, a drainage ditch and culvert were observed. The potential flow from the culvert travels by
sheet flow into Deep Creek.

For the three source areas at the site, the PPEs are located in an unnamed tributary that flows
through the site. From the this location, the surface water TDL continues 0.56 mile in the unnamed
tributary to the confluence with Deep Creek. Deep Creek empties into the Columbia River 7.36 miles
downstream. The surface water TDL concludes 7.08 miles downstream in the Columbia River.

The unnamed tributary is assumed to be a minimal stream with a flow rate less than 10 cfs. Deep
Creek has an average annual flow rate of 96.0 cfs near Northport. The Columbia River (or Lake
Roosevelt) has a flow rate of 116,500 cfs as measured at the U.S.-Canada border. (USGS 2002)

The average annual precipitation is 19.43 inches in Northport, Washington (WRCC 2002). The
2-year, 24-hour rainfall event for the area ranges from 1.4 to 2.0 inches (NOAA 1973).

Soils in the area of Last Chance Mine/Mill were mapped as Waits-Rock outcrop complex, 40 to
65 percent slopes. The soils in this complex are very deep and well drained on side slopes of foothills.
The permeability of the soil is moderate, and the available water capacity is very high. Runoff is very
rapid, and the hazard of water erosion is very high. (USDA 1982)

Approximately 550 upgradient acres of land is expected to drain through the source area at the
mine (USGS 1992a). The drainage area of sources is approximately 12 acres (USGS 1992a).

The Last Chance Mine/Mill does not lie in a flood plain (FEMA 1990).

No containment features such as runoff control exist at the property.

7.10 DEEP CREEK MINE

7.10.1 Surface Water Pathway Description

The potential source areas at the Deep Creek Mine include four waste rock piles, tailings, adit,
shaft, garbage and debris pile, and buildings containing transformers (Figure 6-25).

The waste rock pile located adjacent to Deep Creek measured 20 feet by 20 feet by 5 feet deep.
There could be potential overland flow from the waste rock pile to Deep Creek (PPE 1). The flow of
Deep Creek was estimated by the START-2 at 100 cfs. The waste rock pile located adjacent to the main
road measured 60 feet by 20 feet by 10 feet deep. The waste rock pile located west of the pad with
power tower and fence measured 100 feet by 30 feet by 10 feet deep. The waste rock pile located near
the adit measured 40 feet by 20 feet by 5 feet deep. The roads on the mine property were comprised of
waste rock. The entrance road measured 700 feet by 20 feet by 2 feet deep. The road heading south to
the adit measured 400 feet by 15 feet by 2 feet deep and also consisted of tailings. Tailings were found

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scattered throughout the mine area. Concentrated areas were located in two wet areas (one on the south
end of the property near the adit measuring 15 feet by 15 feet and one south of the main entrance road
measuring 30 feet by 30 feet) and north and west of the waste rock pile adjacent to the entrance road. A
swampy area was located south of the gated entrance and measured 150 feet by 100 feet. There could be
potential flow from this area to Deep Creek (PPE 2). The pad with power tower and fence measured
25 feet by 40 feet. A garbage and debris pile was located adjacent to the main road and measured 50 feet
by 20 feet by 5 feet deep. West of the garbage and debris pile was an assay building measuring 20 feet
by 20 feet. Further west and north four buildings were identified. Building 1 measured 50 feet by
40 feet and contained a winch and four small transformers. Building 2 measured 100 feet by 45 feet and
contained two small transformers, motor and pumps, and a foundation. Building 3 measured 40 feet by
40 feet. Building 4 measured 30 feet by 30 feet. Other features on the south end of the property include
a concrete pad, a shaft, and a pond. The concrete pad measured 15 feet by 20 feet. The adit measured

4	feet by 3 feet by unknown depth. The adit was not flowing; however, standing water was present. The
shaft measured 5 feet by 5 feet by approximately 800 feet deep. The pond measured 20 feet by 20 feet by

5	feet deep.

For the waste rock piles, the nearest PPE is located at Deep Creek, approximately 50 feet
overland from a source area. The surface water TDL begins in Deep Creek and continues for 7.7 miles
until Deep Creek empties into the Columbia River. The surface water TDL concludes 7.3 miles
downstream in the Columbia River.

For the tailings piles and adit, the nearest PPE is located at Deep Creek, approximately 175 feet
overland from a source area. The surface water TDL begins in Deep Creek and continues for 7.7 miles
until Deep Creek empties into the Columbia River. The surface water TDL concludes 7.3 miles
downstream in the Columbia River.

Deep Creek has an average annual flow rate of 96.0 cfs near Northport. The Columbia River (or
Lake Roosevelt) has a flowrate of 116,500 cfs as measured at the U.S.-Canada border. (USGS 2002)

The average annual precipitation is 19.43 inches in Northport, Washington (WRCC 2002). The
2-year, 24-hour rainfall event for the area ranges from 1.4 to 2.0 inches (NOAA 1973).

Soils in the area of Deep Creek Mine were mapped as Rock outcrop-Maki complex, 30 to 65
percent slopes. The soils in this complex are on side slopes of foothills. The permeability of the soil is
moderate, and the available water capacity is low. Runoff is very rapid, and the hazard of water erosion
is very high. (USDA 1982)

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Approximately 170 upgradient acres of land is expected to drain through the source area at the
mine (USGS 1992a). The drainage area of sources is approximately 5 acres (USGS 1992a).

The Deep Creek Mine lies within a 100-year flood plain (FEMA 1990).

No containment features such as runoff control exist at the property.

7.10.2 Soil Exposure Pathway Description

A residence is located to the east of the mine and outside of the gated area. The average number
of persons per household in Stevens County is 2.64 (USBC 2000). No school or day care facility is
located within 200 feet of the site. There are no worker's within 200 feet of any source on site. Based on
USGS topographic maps, the START -2 assumes no other population within a 1- mile travel distance
from the site. No resources such as commercial agriculture, silviculture, or livestock production or
grazing exist on a source area at the site. No wetlands are located on a source area at the site. Most
sources at the site are not fenced.

7.11 COPPER KING MINE

7.11.1 Surface Water Pathway Description

The potential source areas at the Copper King Mine include two waste rock piles, adits, and a
shaft (Figure 6-27).

One waste rock pile was located east of Alladin Road and southwest of adit 1 and measured
60 feet by 30 feet by 3 feet deep. Adit 1 measured 5 feet by 10 feet. No flow or drainage was noted by
the START-2. Adit 2 was located east of adit 1 and measured 5 feet by 10 feet. Adit 2 drainage flowed
approximately 75 feet southwest before infiltrating the ground. There is a potential that during heavy
flow adit 2 discharge could reach Deep Creek (PPE 1). A retention area was documented where the adit
discharge infiltrates the ground measuring 5 feet by 1 feet by 1 feet deep. The retention area was
composed of small logs and plastic sheeting which was estimated to retain approximately 15 gallons. A
hose was noted south of the retention area extending southwest for approximately 20 feet. To the east of
adit 2 the START-2 identified a second waste rock pile and shaft. The waste rock pile measured 75 feet
by 120 feet by 6 feet deep. The shaft was surrounded by the waste rock and measured 15 feet by 20 feet
by unknown depth. Standing water was noted.

For the waste rock piles and adit 2, drainage will flow overland approximately 475 feet to the
PPE at the South Fork of Deep Creek. The surface water TDL begins in the South Fork of Deep Creek

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and continues for 4.1 miles until the South Fork of Deep Creek empties into Deep Creek. The surface
water TDL concludes 10.9 miles downstream in Deep Creek.

The South Fork of Deep Creek is assumed to be a small to moderate stream with an average flow
rate between 10 cfs and 100 cfs. Deep Creek has an average annual flow rate of 96.0 cfs near Northport
(USGS2002).

The average annual precipitation is 17.20 inches in Colville, Washington (WRCC 2002). The
2-year, 24-hour rainfall event for the area ranges from 1.4 to 2.0 inches (NOAA 1973).

Soil in the area of Copper King Mine was mapped as Aits stony loam, 40 to 65 percent slopes.
The soil is very deep, well drained soil on side slopes and foothills. The permeability of the soil is
moderately slow, and the available water capacity is very high. Runoff is very rapid, and the hazard of
water erosion is very high. (USDA 1982)

Approximately 130 upgradient acres of land is expected to drain through the source area at the
mine (USGS 1992a). The drainage area of sources is approximately 3 acres (USGS 1992a).

The Copper King Mine lies within a 100-year flood plain (FEMA 1990).

No containment features such as runoff control exist at the property.

7.12 SIERRA ZINC MINE/MILL

7.12.1 Surface Water Pathway Description

The potential source areas at the Sierra Zinc Mine/Mill include one waste rock pile, tailings pile,
mill building, an adit, and areas of contaminated soil (Figure 6-29).

The mine/mill area contained one waste rock pile measuring 100 feet by 50 feet by 5 feet deep.
North of the waste rock pile was a tailings pile measuring 1,000 feet by 2,100 feet by an estimated 20 feet
deep. There could be potential overland flow from the tailings pile to the drainage ditch (PPE 1). The
flow of the drainage ditch was estimated by the START-2 to be approximately 0.5 cfs. A mill building
was located south of the waste rock and tailings piles measuring 250 feet by 225 feet. Northwest of the
mill building an adit was located measuring 2 feet by 2 feet by unknown depth. The discharge was
estimated by the START-2 at approximately 0.5 gpm. The adit water flowed north into the forested area.
Three residences were located south of the property.

For the contaminated soil near the waste rock pile, drainage flows overland approximately
750 feet to the PPE in a ditch. The ditch flows approximately 0.30 mile to the South Fork of Deep Creek.
The surface water TDL continues 4.67 miles in the South Fork of Deep Creek to the confluence with
Deep Creek. The surface water TDL concludes 10.03 miles downstream in Deep Creek.

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For the tailings pile, drainage flows overland approximately 350 feet to the PPE in the ditch. The
ditch flows approximately 0.30 mile to the South Fork of Deep Creek. The surface water TDL continues
4.67 miles in the South Fork of Deep Creek to the confluence with Deep Creek. The surface water TDL
concludes 10.03 miles downstream in Deep Creek.

For the contaminated soil near the mill building, drainage flows overland approximately
1,350 feet to the PPE in the ditch. The ditch flows approximately 0.30 mile to the South Fork of Deep
Creek. The surface water TDL continues 4.67 miles in the South Fork of Deep Creek to the confluence
with Deep Creek. The surface water TDL concludes 10.03 miles downstream in Deep Creek.

For the adit, drainage flows north into a forested area. A PPE from this source to surface water
was not identified.

The ditch is assumed to be an intermittent minimal stream with a flow rate less than 10 cfs. The
South Fork of Deep Creek is assumed to be a small to moderate stream with a flow rate between 10 cfs
and 100 cfs. The average annual flow rate of Deep Creek near Northport is 96.0 cfs (USGS2002).

The average annual precipitation is 17.20 inches in Colville, Washington (WRCC 2002). The
2-year, 24-hour rainfall event for the area ranges from 1.4 to 2.0 inches (NOAA 1973).

Soils in the area of Sierra Zinc Mine/Mill were mapped as Aits loam, 25 to 40 percent slopes;

Aits stony loam, 40 to 65 percent slopes; Aits-Rock outcrop complex, 0 to 40 percent slopes; Bridgeson
silt loam; Eloika very stony silt loam, 25 to 40 percent slopes; Martella silt loam, 0 to 5 percent slopes;
Martella silt loam, 5 to 15 percent slopes; and Newbell-Rock outcrop complex, 40 to 65 percent slopes.
Aits loam, 25 to 40 percent slopes are very deep, well drained soil on foot slopes of foothills. The
permeability of the soil is moderately slow, and the available water capacity is very high. Runoff is
rapid, and the hazard of water erosion is high. Aits stony loam, 40 to 65 percent slopes is very deep, well
drained soil on side slopes of foothills. The permeability of the soil is moderately slow, and the available
water capacity is very high. Runoff is very rapid, and the hazard of water erosion is very high.

Aits-Rock outcrop complex, 0 to 40 percent are on toe slopes and foot slopes of foothills. The
permeability of the soil is moderately slow, and the available water capacity is very high. Runoff is
rapid, and the hazard of water erosion is high. Bridgeson silt loam is very deep, poorly drained soil on
bottom lands and low stream terraces. The permeability of the soil is moderately slow, and the available
water capacity is very high. Runoff is very slow. This soil is subject to occasional flooding for long
periods from February to April. Eloika very stony silt loam, 25 to 40 percent slopes are deep, well
drained soil on terrace escarpments. The permeability of the soil is moderate, and the available water
capacity is high. Runoff is rapid, and the hazard of water erosion is high. Martella silt loam, 0 to 5

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percent slopes is very deep, moderately well drained soil on terraces. The permeability of the soil is
moderately slow, and the available water capacity is very high. Runoff is slow, and the hazard of water
erosion is slight to moderate. Martella silt loam, 5 to 15 percent slopes is very deep, moderately well
drained soil on undulating terraces. The permeability of the soil is moderately slow, and the available
water capacity is very high. Runoff is medium, and the hazard of water erosion is moderate.

Newbell-Rock outcrop complex, 40 to 65 percent slopes are on side slopes of foothills. The permeability
of the soil is moderate, and the available water capacity is very high. Runoff is very rapid, and the
hazard of water erosion is very high. (USDA 1982)

Approximately 95 upgradient acres of land is expected to drain through the source area at the
mine (USGS 1992a). The drainage area of sources is approximately 36 acres (USGS 1992a).

The Sierra Zinc Mine/Mill does not lie in a flood plain (FEMA 1990).

No containment features such as runoff control exist at the property.

7.13 ELECTRIC POINT MINE/MILL
7.13.1 Surface Water Pathway Description

The potential source areas at the Electric Point Mine/Mill include two waste rock piles, two
collapsed shafts, and collapsed mill building (Figure 6-31). No PPEs were identified by the START-2.

Although, no PPEs exist at the site, the nearest surface water body is an unnamed tributary. The
unnamed tributary flows 0.59 mile to the confluence with Republican Creek. Republican Creek empties
into the North Fork of Deep Creek 2.65 miles downstream. The surface water TDL continues 1.56 miles
downstream in the North Fork of Deep Creek to the confluence with Deep Lake. Deep Lake outflows
into the North Fork of Deep Creek 1.36 miles from the lake's intake. The North Fork of Deep Creek
empties into Deep Creek 2.68 miles downstream. The surface water TDL concludes 6.16 miles
downstream in Deep Creek.

The average annual precipitation is 19.43 inches in Northport, Washington (WRCC 2002). The
2-year, 24-hour rainfall event for the area ranges from 1.4 to 2.0 inches (NOAA 1973).

Soils in the area of Electric Point Mine/Mill were mapped as Belzar-Rock outcrop complex,
40 to 65 percent slopes and Waits-Rock outcrop complex, 40 to 65 percent slopes. Belzar-Rock outcrop
complex, 40 to 65 percent slopes are moderately deep and well drained on side slopes of foothills. The
permeability of the soil is moderate, and the available water capacity is moderate. Runoff is very rapid,
and the hazard of water erosion is very high. Waits-Rock outcrop complex, 40 to 65 percent slopes are
very deep and well drained on side slopes and foothills. The permeability of the soil is moderate, and the

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available water capacity is very high. Runoff is rapid, and the hazard of water erosion is very high.

(USD A 1982)

Approximately 22 upgradient acres of land is expected to drain through the source area at the
mine (USGS 1992b). The drainage area of sources is approximately 20 acres (USGS 1992b).

The Electric Point Mine/Mill does not lie in a flood plain (FEMA 1990).

No containment features such as runoff control exist at the property.

7.14 GLADS TONE MINE/MILL

7.14.1 Surface Water Pathway Description

The potential source areas at the Gladstone Mine/Mill include one waste rock pile, shafts,
tailings pile, and potential collapsed mill building (Figure 6-33). No PPEs were identified by the
START-2.

Although, no PPEs exist at the site, the nearest surface water body is an unnamed tributary. The
unnamed tributary flows 0.54 mile to the confluence with the West Fork of Silver Creek. The West Fork
of Silver Creek empties into Silver Creek 1.28 miles downstream. The surface water TDL continues 1.95
miles downstream in Silver Creek to the confluence with the North Fork of Deep Creek. The North Fork
of Deep Creek empties into Deep Lake 3.38 miles downstream. Deep Lake outflows into the North Fork
of Deep Creek 1.36 miles from the lake's intake. The North Fork of Deep Creek empties into Deep
Creek 2.68 miles downstream. The surface water TDL concludes 3.81 miles downstream in Deep Creek.

The average annual precipitation is 19.43 inches in Northport, Washington (WRCC 2002). The
2-year, 24-hour rainfall event for the area ranges from 1.4 to 2.0 inches (NOAA 1973).

Soils in the area of Gladstone Mine/Mill were mapped as Waits-Rock outcrop complex, 40 to
65 percent slopes. The soils in this complex are very deep and well drained on side slopes of foothills.
The permeability of the soil is moderate, and the available water capacity is very high. Runoff is very
rapid, and the hazard of water erosion is very high. (USDA 1982)

Approximately 380 upgradient acres of land is expected to drain through the source area at the
mine (USGS 1992b). The drainage area of sources is approximately 1 acre (USGS 1992b).

The Gladstone Mine/Mill does not lie in a flood plain (FEMA 1990).

No containment features such as runoff control exist at the property.

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7.15	RED TOP MINE

7.15.1 Surface Water Pathway Description

The potential source areas at the Red Top Mine includes a waste rock pile, portal/shaft, and adit
(Figure 6-35). No PPEs were identified by the START-2.

Although, no PPEs exist at the site, the nearest surface water body is an unnamed tributary. The
unnamed tributary flows 0.42 mile to the confluence with Hartbauer Creek. The surface water TDL
continues 1.54 miles in Hartbauer Creek to the confluence with the North Fork of Deep Creek. The
North Fork of Deep Creek empties into Deep Lake 4.21 miles downstream. Deep Lake outflows into the
North Fork of Deep Creek 1.36 miles from the lake's intake. The North Fork of Deep Creek empties into
Deep Creek 2.68 miles downstream. The surface water TDL concludes 4.79 miles downstream in Deep
Creek.

The average annual precipitation is 19.43 inches in Northport, Washington (WRCC 2002). The
2-year, 24-hour rainfall event for the area ranges from 1.4 to 2.0 inches (NOAA 1973).

Soils in the area of Red Top Mine were mapped as Ahren loam, 40 to 65 percent slopes. The
soils are deep, well drained on side slopes of foothills. The permeability of the soil is moderately slow,
and the available water capacity is very high. Runoff is very rapid, and the hazard of water erosion is
very high. (USDA 1982)

Approximately 440 upgradient acres of land is expected to drain through the source area at the
mine (USGS 1992b). The drainage area of sources is approximately 39 acres (USGS 1992b).

The Red Top Mine does not lie in a flood plain (FEMA 1990).

No containment features such as runoff control exist at the property.

7.16	ANDERSON CALHOUN MINE/MILL
7.16.1 Surface Water Pathway Description

The potential source areas at the Anderson Calhoun Mine/Mill include a tailing pile, evaporation
pond, waste rock pile, mine pit, mine building, floatation building, waste rock storage bin, mill building,
scattered drums, scattered transformers, and stained soil areas (Figure 6-37).

The mine/mill area consisted of a tailings pile measuring 555 feet by 500 feet by unknown depth.
The tailings pile was located adjacent to the gated entrance road and on the western portion of the
property. A pond is located on the tailings pile. T o the north of the tailings pile, an evaporation pond
was noted measuring 105 feet by 50 feet.

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To the east of the tailings pile a waste rock pile was located underneath the waste rock conveyor
belt measuring 120 feet by 80 feet by 20 feet deep. The waste rock conveyor belt was connected to the
mine building, the floatation building, and the waste rock storage bin. The mine building measured
25 feet in width by 15 feet in length by 20 feet in height. The conveyor belt attached to the floatation
building measured 35 feet in length. The floatation building measured 25 feet in width by 15 feet in
length by 10 feet in height. The waste rock storage bin measured 15 feet in width by 15 feet in length by
40 feet in height.

The mill building was located north of the mine building and measured 50 feet in width by
75 feet in length by 40 feet in height. The mill building contained staged reagent and unknown drums,
floatation tanks, and a crusher. Approximately 100 55-gallon steel drums were staged in the east corner
of the mill building. Many of these unmarked drums were punctured with bullets with the contents
spilling onto the concrete foundation. The unknown spilled contents were solidified. The concrete floor
did not appear to be breached. Tailings were scattered throughout the mill building. A portal measuring
10 feet by 10 feet was located on the western portion of the mill building with a conveyor belt leading
into the building.

Remnants of a storage shed and two concrete pads were located in between the mine and mill
buildings. The storage shed foundation measured 20 feet by 20 feet. Remnants of "Cebar Barite", a
white cellulose-type material, was scattered throughout the storage shed foundation and surrounding area
including the concrete pads. Five 55-gallon drums were scattered on the storage shed foundation. One
concrete pad measuring 40 feet by 10 feet was located directly east of the dilapidated storage shed. Ten
55-gallon drums were staged on palettes. There was no legible documentation on the drums. The second
concrete pad was located north of the first concrete pad and measured 10 feet by 20 feet. Scrap wood,
steel, and garbage were scattered on both concrete pads.

On the north side of the mill building, three areas of scattered drums intermixed with debris and
equipment were documented. Stained soil with an oil odor were noted around the drums. Cattle prints
were identified in the stained soil. There was a distinct sheen throughout the stained soil area
surrounding the drums.

Transformers were identified in 6 areas. A substation, heavily vandalized, was also documented.
The first area was located east of the dilapidated storage shed and two concrete pads and consisted of a
power line with three transformers. The second area was located adjacent to the south side of the mill
building and comprised three transformers staged on concrete pads. The concrete was not compromised.
The third area was located west of the second area and consisted of a fallen power line with a

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transformer. The top of the transformer was detached and no staining was noted in the vicinity. The
fourth area was located north of the fallen power line and comprised a gated area containing a power line
with transformer and 6 transformers staged on concrete. No staining was noted on the concrete or the
surrounding soil. The fifth area was located west of the fourth area and consisted of three transformers
staged on a concrete pad. No staining was noted on the concrete or the surrounding soil. The sixth area
was located to the east of the fourth area and consisted of a power line with a transformer. The
substation was located south of the sixth area and east of the third area and consisted of a partially gated
area with remnant electrical equipment.

On the southern portion of the property and east of the mine/mill entrance, a silo, concrete pad,
and mine pit were located. The mine pit was filled with water.

A stream flowing south extended the entire length of the mine/mill and onto private farmland. A
marshy wetland area was noted on the western portion of the stream and adjacent to the eastern side of
the tailings pile and evaporation pond (PPE 1).

For the tailings pile source area, drainage flows overland approximately 100 feet to PPE 1. The
wetland drains 0.01 mile to an unnamed stream. The unnamed stream empties into the North Fork of
Deep Creek 0.11 mile downstream. The surface water TDL continues 4.06 miles downstream in the
North Fork of Deep Creek to the confluence with Deep Lake. Deep Lake outflows into the North Fork of
Deep Creek 1.36 miles from the lake's intake. The North Fork of Deep Creek empties into Deep Creek
2.68 miles downstream. The surface water TDL concludes 6.78 miles downstream in Deep Creek.

For the contaminated soil source areas at the site, drainage flows overland approximately 250
feet to the PPE, located in the unnamed stream. The unnamed stream empties into the North Fork of
Deep Creek 0.11 mile downstream. The surface water TDL continues 4.06 miles downstream in the
North Fork of Deep Creek to the confluence with Deep Lake. Deep Lake outflows into the North Fork of
Deep Creek 1.36 miles from the lake's intake. The North Fork of Deep Creek empties into Deep Creek
2.68 miles downstream. The surface water TDL concludes 6.79 miles downstream in Deep Creek.

For the mine pit, drainage flows overland approximately 200 feet to the PPE, located in an
unnamed stream. The unnamed stream empties into the North Fork of Deep Creek 0.2 mile downstream.
The surface water TDL continues 4.06 miles downstream in the North Fork of Deep Creek to the
confluence with Deep Lake. Deep Lake outflows into the North Fork of Deep Creek 1.36 miles from the
lake's intake. The North Fork of Deep Creek empties into Deep Creek 2.68 miles downstream. The
surface water TDL concludes 6.7 miles downstream in Deep Creek.

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The unnamed stream is assumed to be a minimal stream with an average flow rate less than
10 cfs. The North Fork of Deep Creek and Deep Lake are assumed to be small to moderate streams with
average flow rates between 10 cfs and 100 cfs. The average flow rate of Deep Creek near Northport is
96.0 cfs (USGS2002).

The average annual precipitation is 19.43 inches in Northport, Washington (WRCC 2002). The
2-year, 24-hour rainfall event for the area ranges from 1.4 to 2.0 inches (NOAA 1973).

Soils in the area of Anderson Calhoun Mine/Mill were mapped as Saltese muck, drained; Waits
loam, 0 to 15 percent slopes; Waits loam, 40 to 65 percent slopes; and Waits-Rock outcrop complex,
40 to 65 percent slopes. Saltese muck, drained, are very deep, artificially drained, organic soil in basins
and potholes on bottom lands and along the perimeters of lakes. The permeability of the soil is moderate,
and the available water capacity is very high. Runoff is ponded. There is no hazard for soil erosion.

Waits loam, 0 to 15 percent slopes are very deep, well drained on toe slopes of foothills. The
permeability of the soil is moderate, and the available water capacity is very high. Runoff is slow, and
the hazard of water erosion is slight to moderate. Waits loam, 40 to 65 percent slopes are very deep, well
drained on side slopes of foothills. The permeability of the soil is moderate, and the available water
capacity is very high. Runoff is very rapid, and the hazard for water erosion is very high. Waits-Rock
outcrop complex, 40 to 65 percent slopes are very deep and well drained on side slopes of foothills. The
permeability of the soil is moderate, and the available water capacity is very high. Runoff is very rapid,
and the hazard of water erosion is very high. (USDA 1982)

Approximately 660 upgradient acres of land is expected to drain through the source area at the
mine (USGS 1992b). The drainage area of sources is approximately 4 acres (USGS 1992b).

The Anderson Calhoun Mine/Mill lies within a 100-year flood plain (FEMA 1990).

No containment features such as runoff control exist at the property.

7.17 IROQUOIS MINE

7.17.1 Surface Water Pathway Description

The potential source areas at the Iroquois Mine include one waste rock pile and an adit
(Figure 6-39). No PPEs were identified by the START-2.

Although no PPEs exist at the site, the nearest surface water body is an unnamed tributary. The
surface water TDL continues 0.69 mile in the unnamed tributary to Hartbauer Creek. Hartbauer Creek
empties to the North Fork of Deep Creek 2.34 miles downstream. The North Fork of Deep Creek
empties into Deep Lake 4.21 miles downstream. Deep Lake outflows into the North Fork of Deep Creek

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1.36 miles from the lake's intake. The North Fork of Deep Creek empties into Deep Creek 2.68 miles
downstream. The surface water TDL concludes 3.72 miles downstream in Deep Creek.

The average annual precipitation is 19.43 inches in Northport, Washington (WRCC 2002). The
2-year, 24-hour rainfall event for the area ranges from 1.4 to 2.0 inches (NOAA 1973).

Soils in the area of Iroquois Mine were mapped as Belzar silt loam, 40 to 65 percent slopes. The
soils are moderately deep, well drained on side slopes of foothills. The permeability of the soil is
moderate, and the available water capacity is moderate. Runoff is very rapid, and the hazard of water
erosion is very high. (USDA 1982)

Approximately 870 upgradient acres of land is expected to drain through the source area at the
mine (USGS 1992b). The drainage area of sources is approximately 17 acres (USGS 1992b).

The Iroquois Mine does not lie in a flood plain (FEMA 1990).

No containment features such as runoff control exist at the property.

7.18 MELROSE MINE

7.18.1 Surface Water Pathway Description

The potential source area at the Melrose Mine includes an adit (Figure 6-41).

The mine area consisted of an adit 5 feet by 10 feet by unknown depth. Moss and algae growth
were noted near the mouth of the adit. The adit discharge flowed approximately 40 feet east to an
unnamed tributary (PPE 1) that feeds into Tom Bush Creek. The ST ART-2 estimated the flow of the
unnamed tributary at 1 gpm. The surface water TDL continues for 0.1 mile in the unnamed tributary to
the confluence with Tom Bush Creek. Tom Bush Creek empties into the Columbia River 1.74 miles
downstream. The surface water TDL concludes 13.16 miles downstream in the Columbia River.

There were no waste rock piles; however, the entry road appeared to be constructed out of waste
rock. A building approximately 10 feet by 10 feet by 10 feet was located to the north of the adit and
contained test core samples.

The average annual precipitation is 19.43 inches in Northport, Washington (WRCC 2002). The
2-year, 24-hour rainfall event for the area ranges from 1.4 to 2.0 inches (NOAA 1973).

Soils in the area of Melrose Mine were mapped as Huckleberry silt loam, 15 to 25 percent slopes.
The soils are moderately deep, well drained on toe slopes and ridgetops of mountains. The permeability
of the soil is moderate, and the available water capacity is high. Runoff is medium, and the hazard of
water erosion is moderate. (USDA 1982).

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Approximately 260 upgradient acres of land is expected to drain through the source area at the
mine (USGS 1992c). The drainage area of sources is approximately 3 acres (USGS 1992c).

The Melrose Mine does not lie in a flood plain (FEMA 1990).

No containment features such as runoff control exist at the mine.

7.19 TRIBUTARIES

Tributaries to the upper Columbia River sampled as part of this field effort include unnamed
tributary Section 8, Township 32N, Range 37E; unnamed tributary at Clover Leaf Beach Campground;
Stranger Creek (west); Hall Creek; Cobbs Creek; unnamed tributary Section 28, Range 37E, Township
33N; unnamed tributary Section 30, Range 37E, Township 33N; unproposed dry tributary; unnamed
tributary Section 21, Range 37E, Township 33N; unnamed tributary Section 19, Range 37E, Township
33N; unnamed tributary Section 18, Range 37E, Township 33N; Magee Creek; Jennings Creek; Little
Jim Creek; unnamed tributary Section 1, Range 37E, Township 33N; unnamed tributary Section 4,

Range 37E, Township 33N; unnamed tributary Section 5, Range 37E, Township 33N; unnamed tributary
Section 32, Range 37E, Township 34N; unnamed tributary Section 36, Range 36E, Township 34N;
unnamed tributary Section 25, Range 36E, Township 34N; Cheweka Creek; unnamed tributary Section
29, Range 37E, Township 34N (north of Cheweka Creek); unnamed tributary Section 29, Range 37E,
Township 34N (NW quarter); unnamed tributary Section 20, Range 37E, Township 34N; Barnaby Creek;
Rotter Bay Creek; Quillisascut Creek; unnamed tributary Section 11, Range 36E, Township 34N;
unnamed tributary Section 6, Range 37E, Township 34N; Cuba Canyon Creek; unnamed tributary
Section 31, Range 37E, Township 35N; La Fleur Creek; unnamed tributary Section 32, Range 37E,
Township 36N; unnamed tributary Section 33, Range 37E, Township 36N (SW quarter; drains Nettleton
Lake); unnamed tributary Section 33, Range 37E, Township 35N (NW quarter); unproposed dry
tributary; unnamed tributary Section 22, Range 37E, Township 35N (south of Bradbury campground);
Martin Creek; unnamed tributary Section 15, Range 37E, Township 35N (north of Bradbury
campground); Roper Creek; Rickey Creek; Cougar Canyon Creek; Hallam Creek; unnamed ephemeral
tributary west of Mingo Creek; Mingo Creek; Colville River; Sherman Creek; unnamed tributary Section
22, Range 37E, Township 36N (SE quarter); unmapped tributary adjacent to TS051; unnamed tributary
Section 22, Range 37E, Township 36N (NE quarter); unnamed tributary Section 15, Range 37E,
Township 36N (SE quarter, western tributary); unnamed tributary Section 15, Range 37E, Township 36N
(SE quarter, eastern tributary); unnamed tributary Section 14, Range 37E, Township 36N (SW quarter);
unnamed ephemeral tributary Section 18, Range 38E, Township 36N (SW quarter); Martin Spring Creek;

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Pingston Creek; Nancy Creek; unnamed ephemeral tributary Section 33, Range 37E, Township 37N;
unnamed tributary Section 16, Range 37E, Township 37N (SW quarter); unnamed ephemeral tributary
Section 22, Range 37E, Township 37N; unnamed tributary across from Marcus Island Section 23,

Range 37E, Township 37N; unnamed ephemeral tributary Section 28, Range 38E, Township 37N;
unnamed ephemeral tributary Section 22, Range 38E, Township 37N (SW quarter); unnamed ephemeral
tributary Section 22, Range 38E, Township 37N (NW quarter); unnamed spring drainage east of Evans
Campground peninsula; Deadman Creek; unnamed ephemeral tributary Section 16, Range 37E,

Township 37N (NW quarter); unnamed tributary to Kettle River Arm (drainage pond near Boyds);
unnamed ephemeral tributary Section 9, Range 37E, Township 37N (NW quarter, SE quarter); unnamed
ephemeral tributary Section 9, Range 37E, Township 37N (NW quarter, NE quarter); unnamed
ephemeral tributary Section 4, Range 38E, Township 37N (NE quarter); Matsen Creek; Doyle Creek;
Kettle River; China Creek; unnamed tributary south of Snag Cove; unnamed ephemeral tributary Section
36, Range 37E, Township 38N (SW quarter); unnamed ephemeral tributary entering river Section 35,
Range 37E, Township 38N (NE quarter); unnamed tributary directly across from Bossburg, Washington;
Dilly Lake ephemeral tributary; unnamed ephemeral tributary upstream of Dilly Lake ephemeral
tributary; unnamed ephemeral tributary Section 21, Range 38E, Township 38N; unnamed ephemeral
tributary Section 22, Range 38E, Township 38N; unnamed ephemeral tributary at North Gorge
Campground; unnamed ephemeral tributary Section 17, Range 38E, Township 38N (NW quarter);
unnamed ephemeral tributary downstream of Lodgepole Creek, Section 8, Range 38E, Township 38N
(NW quarter); Lodgepole Creek; unnamed ephemeral tributary Section 10, Range 38E, Township 38N;
Fifteenmile Creek; unnamed ephemeral tributary at Flat Creek; Flat Creek; unnamed ephemeral tributary
downstream of China Bar; unnamed ephemeral tributary Section 25, Range 39E, Township 39N
(Sw quarter); Crown Creek; Rattlesnake Creek; unnamed ephemeral tributary downstream from Moses
Spring Creek; Moses Spring Creek; Onion Creek; unnamed ephemeral tributary Section 10, Range 39E,
Township 39N; Squaw Creek; unnamed tributary from nearshore ponds; Fivemile Creek; Bear Creek;
Deep Creek; Big Sheep Creek; Quartz Creek; Goodeve Creek; Scriver Creek; unnamed tributary
northeast of gaging station; tributary to Tom Bush Creek and Melrose Mine; unnamed tributary to Onion
Creek and Van Stone Mine/Mill; unnamed tributary to Onion Creek and Van Stone Mine/Mill; unnamed
tributary to Onion Creek and Van Stone Mine/Mill; tributary to Deep Creek and Last Chance Mine/Mill;
Deep Creek South Fork; unnamed tributary to Deep Creek; tributary to Tom Bush Creek and Melrose
Mine; unnamed tributary to Onion Creek and Van Stone Mine/Mill; and Deep Creek South Fork.

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The annual stream flow data for the available applicable stations in Stevens County include:

•	578 cfs for Colville River at Kettle Falls (USGS 2002);

•	28.0 cfs for Mill Creek at mouth of Colville (USGS 2002);

•	16.3 cfs for Haller Creek near Arden (USGS 2002);

•	62.2 cfs for Little Pend Oreille River near Colville (USGS 2002);

•	110 cfs for Colville River at Blue Creek (USGS 2002);

•	23.2 for Chewelah Creek at Chewelah (USGS2002);

•	25.5 cfs for Deer Creek near Valley (USGS 2002);

•	13.0 cfs for Sheep Creek at Springdale (USGS2002);

•	2.84 cfs for Sheep Creek at Loon Lake (USGS 2002);

•	341 cfs for Sheep Creek near Northport (USGS 2002);

•	74.1 cfs for Sheep Creek near Velvet (USGS 2002);

•	96.0 cfs for Deep Creek near Northport (USGS 2002); and

•	116,500 cfs for Columbia River at U.S.-Canada border (USGS 2002).

7.20 TARGETS

This section discusses potential target information for the 18 mines that were sampled. There are
no schools or day-care facilities within 200 feet of the 18 mine/mill areas that were sampled.

Lake Roosevelt and the upper Columbia River are used for hydroelectric power, irrigation, and
recreation. The man-made Lake Roosevelt area provides opportunities for boating, fishing, swimming,
camping, and hiking (http://www2.thingstodo.com/statesAVA/nationalparks/lakeroosevelt.htm).

Surface water intakes are reported to lie within the surface water target distance limit (TDL) for
each of the mines/mills sampled. The average number of persons per household in Stevens County is
2.64 (USBC 2000); therefore, the START-2 estimates the following:

There are 5.28 persons using surface water from Magee Creek for drinking water within
the 15-mile TDL of Daisy Mine;

There are 5.28 persons using surface water from the Colville River for drinking water
within the 15-mile TDL of L-Bar/Northwest Magnesite;

There are no people using surface water for drinking water within the 15-mile TDL of
Northwest Alloys;

10:START-2\01020028\S759

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There are 7.92 persons using surface water from the Kettle River and 16.08 persons
using surface water from Lake Roosevelt for drinking water within the 15-mile TDL of
Napoleon Mine/Mill;

There are 10.56 persons using surface water from Onion Creek for drinking water within
the 15-mile TDL of Van Stone Mine/Mill;

There are 2.64 persons using surface water from Lake Roosevelt for drinking water
within the 15-mile TDL of LeRoi/Northport Smelter;

There are 21.12 persons using surface water from Deep Creek for drinking water within
the 15-mile TDL of Black Rock Mine/Mill;

There are 21.12 persons using surface water from Deep Creek for drinking water within
the 15-mile TDL of Great Western Mine;

There are 21.12 persons using surface water from Deep Creek for drinking water within
the 15-mile TDL of Last Chance Mine/Mill;

There are 21.12 persons using surface water from Deep Creek for drinking water within
the 15-mile TDL of Deep Creek Mine;

There are 23.76 persons using surface water from Deep Creek for drinking water within
the 15-mile TDL of Copper King Mine;

There are 23.76 persons using surface water from Deep Creek for drinking water within
the 15-mile TDL of Sierra Zinc Mine/Mill;

There are 2.64 persons using surface water from Republican Creek for drinking water,
5.28 persons using surface water from Deep Creek for drinking water, and 15.84 persons
using surface water from Deep Lake for drinking water within the 15-mile TDL of
Electric Point Mine/Mill;

There are 21.12 persons using surface water from Silver Creek for drinking water, 5.28
persons using surface water from Deep Creek for drinking water, and 15.84 persons
using surface water from Deep Lake for drinking water within the 15-mile TDL of
Gladstone Mine/Mill;

There are 2.64 persons using surface water from Hartbauer Creek for drinking water,
5.28 persons using surface water from Deep Creek for drinking water, and 15.84 persons
using surface water from Deep Lake for drinking water within the 15-mile TDL of Red
Top Mine;

There are 15.84 persons using surface water from Deep Creek for drinking water and
15.84 persons using surface water from Deep Lake for drinking water within the 15-mile
TDL of Anderson Calhoun Mine/Mill;

There are 2.64 persons using surface water from Hartbauer Creek for drinking water,
5.28 persons using surface water from Deep Creek for drinking water, and 15.84 persons
using surface water from Deep Lake for drinking water within the 15-mile TDL of
Iroquois Mine; and

There are 2.64 persons using surface water from Tom Bush Creek for drinking water
within the 15-mile TDL of Melrose Mine. (Ecology 2001a)

10:START-2\01020028\S759

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The START-2 expects that surface water will be used within the TDL for irrigation of
commercial food or forage crops or for watering of commercial livestock.

Lake Roosevelt and its tributaries in the Lake Roosevelt National Recreation Area support a
varied fish community that today is considerably different from the native fish community of the early
1900s. The changes over time were caused by the introduction of nonnative species, habitat alterations
such as water pollution, the damming of rivers, and reservoir drawdowns. Today, there are possibly
28 native and 12 nonnative species of fish that inhabit recreation area waters. (DOI 2000)

Between 1990 and 1996 the number of angler trips to Lake Roosevelt ranged from 171,725 to
594,508 per year. Recreational fishing trips to Lake Roosevelt peaked in 1993 and have been declining
since. The decline was partly attributed to the dewatering of boat ramps during the 1996 drawdown that
prohibited anglers from accessing much of the reservoir. Walleye, rainbow trout, and kokanee salmon
were the fish most often caught and harvested by anglers. (DOI 2000) Data provided by the Lake
Roosevelt Fisheries Evaluation Project; a cooperative project amongst the Spokane Tribe of Indians, the
Colville Confederated Tribes, and the Washington Department of Fish and Wildlife; to the EPA indicates
that over a ten week period from July 13, 2002 to September 20, 2002, 576 fish were caught by anglers
from Lake Roosevelt. These fish consisted of 338 walleye, 221 rainbowtrout, and 17 kokanee salmon.
(Lee 2002) The State of Washington only tracks sturgeon, salmon, and steelhead in its freshwater sport
fishing data. They list that 4 sturgeon were harvested between Grand Coulee Dam and the Canadian
border in 1998. No steelhead and salmon are reported (WSDFW 2001).

The Spokane Tribe and the Colville Confederated Tribes, and the Washington Department of
Fish and Wildlife are the primary agencies directly involved in managing the Lake Roosevelt fisheries.
The Spokane Tribe is coordinating the development of a Lake Roosevelt fisheries plan, funded by the
Bonneville Power Administration in cooperation with the Washington Department of Fish and Wildlife,
the Colville Confederated Tribes, and other involved parties. Two kokanee salmon hatcheries are
operated by the Spokane Tribe and the Washington Department of Fish and Wildlife to support the
resident fishery in Lake Roosevelt. The hatcheries produce thousands of kokanee for release into Lake
Roosevelt annually. The Spokane Tribe also has initiated a program of rearing rainbowtrout at its
hatchery for release into the lake. (DOI 2000)

In addition to the hatchery operations, there are numerous rainbowtrout pens on Lake Roosevelt.
These fish-rearing pens provide thousands of trout annually to support the recreational fishery. The
success of this project in providing catchable-size rainbowtrout resulted in its expansion to more than

10:START-2\01020028\S759

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30 net pens in several locations on Lake Roosevelt by 1995. In addition, some of the net pens are now
being used to rear kokanee before release. (DOI 2000)

The Lake Roosevelt National Recreation Area is present along the Columbia River from Grand
Coulee Dam to nearly the U.S.-Canada border. Six species may inhabit areas in or near the Lake
Roosevelt National Recreation Area that are protected by the Endangered Species Act. Of these, gray
wolves (Canus lupus), peregrine falcons (Falco peregrinus), and woodland caribou (Rangifer tarandus
caribou) were endangered, and the bald eagle (Haliaeetus leucocephalus), bull trout {Salvelinns
confluentus), and grizzly bear (Ursus arctos horribilis) were threatened. The Canada lynx (Felis lynx
canadensis), a proposed species for listing, may also inhabit lands in or near the Lake Roosevelt National
Recreation Area. The Canada lynx is not currently protected under the Endangered Species Act. The
state of Washington also listed gray wolves, peregrine falcons, woodland caribou, and grizzly bears as
endangered and the bald eagle and Canada lynx as threatened. (DOI 2000)

Peregrine nests have been found in the area surrounding the Lake Roosevelt reservoir. Use of the
area by peregrines normally occurs during spring and fall migrations. Peregrine falcon foraging and
nesting habitats are usually associated with tall cliffs near water. Their diet consists primarily of
waterfowl, shorebirds, and passerine species commonly found on and around lakes and streams.
(DOI 2000)

No confirmed gray wolf sightings have been documented in the Lake Roosevelt National
Recreation Area; however, numerous unconfirmed sightings have been reported in some surrounding
areas in recent years. (DOI 2000)

Between 1987 and 1990, 60 woodland caribou were moved to northern Idaho from British
Columbia to help bolster the existing remnant herd. The herd has been augmented as recently as 1998.
However, it is unlikely that woodland caribou would be found in the immediate vicinity of the Lake
Roosevelt National Recreation Area. Woodland caribou are known to occur in northeastern Washington;
however, none have been reported in the national recreation area. Most caribou remain in forested
habitats year-round. (DOI 2000)

Bald eagles maintain a large overwintering population in the area surrounding the Lake
Roosevelt reservoir from November through March annually. More than 21 bald eagle nests are in the
vicinity and bald eagles appear to be becoming more productive each year. A maximum of 15 territories
has been occupied in any one year. Bald eagle habitat is usually associated with large bodies of water
that provide an abundant source of food. (DOI 2000) Bald eagle habitat has been observed on the
Columbia River/Lake Roosevelt within the 15-mile TDLs of Napoleon Mine/Mill, Van Stone Mine/Mill,

10:START-2\01020028\S759

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LeRoi/Northport Smelter, Black Rock Mine/Mill, Great Western Mine, Last Chance Mine/Mill, Deep
Creek Mine, and Melrose Mine (WSDFW various dates).

Although grizzly bears occur in the Selkirk ecosystem in northern Idaho and Washington,
population levels are believed to be low. No grizzly bears have been recently reported within the
National Recreation Area. (DOI 2000)

Bull trout historically occupied a vast geographic area of the Columbia River. T oday the
remaining populations are isolated and remnant. Native bull trout have declined significantly in the last
10 years, in part due to predation by and competition with introduced species such as walleye. If bull
trout are present, Lake Roosevelt and its tributaries could provide suitable habitat. Bull trout typically
migrate from lakes in the fall to spawn in clear streams with flat gradient, uniform flow, and uniform
gravel or small cobble. (DOI 2000)

Lynx have been seen near the northern end of Lake Roosevelt; however, no evidence of resident
populations have been documented. Lynx prefer the density of coniferous forests and swamp areas
where their coloring allows them to be camouflaged from their prey. (DOI 2000)

In addition to the aforementioned, another 24 animal species of concern to the state of
Washington or the United States Fish and Wildlife Service may occur in or near the Lake Roosevelt
National Recreation Area. These include the threatened ferruginous hawk (Buteo regalis); the candidates
California floater (Anodonta californiensis), Columbia sharp-tail grouse (Tympanuchusphasianellus
Columbians), Columbia spotted frog (Rana luteiventris), loggerhead shrike (Lanius ludovicianus),
northern goshawk (Accipiter gentilis), Pacific fisher (Martes pennanti pacifica). pale Townsend's
big-eared bat (Corynorhinus townsendii pallexcens), and Washington ground squirrel (Spermophilus
Washington!). (DOI 2000)

No federally-listed, proposed, or candidate plants are known to occur within the Lake Roosevelt
National Recreation Area. (DOI 2000)

Lake Roosevelt is the largest single geographic feature in the northeastern corner of Washington
state. The surrounding countryside is mostly rural except for the small towns in the Kettle Falls and
Grand Coulee Dam areas. There are five counties and two Indian reservations that touch upon Lake
Roosevelt National Recreation Area. Grain, forestry, lumber, and mining are the principal economic
activities of the region. (DOI 2000)

North and west of the lake, the country is relatively mountainous and largely forested with a
small amount of farmland. Logging and mining dominate the economy. East of the lake, the country is
more mountainous than rolling and is a mixture of forest and farmland. Forest products manufacturing

10:START-2\01020028\S759

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dominates the economy. South of the Lake, the topography is generally flatland with low rolling hills.
Agriculture is the backbone of the economy, with wheat as the primary crop. Recreational activities,
largely fishing, supplement the economy and are potentially significant. (DOI 2000)

Lake Roosevelt is one of the major focal points of recreation in a region that boasts an abundance
of recreational opportunities. Within a radius of approximately 100 miles from Grand Coulee Dam, there
are four national forests, six other major lakes or reservoirs, several smaller reservoirs on the Columbia
and Snake rivers, North Cascades National Park, and Lake Chelan National Recreation Area. The
national forests have a substantial complementary recreation potential, which consists of smaller lake and
stream fishing, camping, hunting, and winter sports. The Grand Coulee Dam itself is a tourist destination
that attracts more than 400,000 visitors a year to tour the dam and watch the laser light show.
(DOI 2000)

According to National Wetland Inventory maps (USFWS various dates):

0.74 linear miles of wetland frontage exists along Lake Roosevelt within the TDL for
Daisy Mine;

•	14.33 linear miles of wetland frontage exists along the Colville River within the TDL for
L-Bar/Northwest Magnesite;

•	14.02 linear miles of wetland frontage exists along the Colville River within the TDL for
Northwest Alloys;

•	1.06 linear miles of wetland frontage exists along the Kettle River Arm and 1.46 linear
miles of wetland frontage exists along Lake Roosevelt within the TDL for Napoleon
Mine/Mill;

•	1.79 linear miles of wetland frontage exists along Onion Creek within the TDL for Van
Stone Mine/Mill;

0.6 linear miles of wetland frontage exists along Lake Roosevelt within the TDL for
LeRoi/Northport Smelter;

3.91 linear miles of wetland frontage exists along Deep Creek within the TDL for Black
Rock Mine/Mill;

4.15 linear miles of wetland frontage exists along Deep Creek within the TDL for Great
Western Mine;

4.15 linear miles of wetland frontage exists along Deep Creek within the TDL for Last
Chance Mine/Mill;

4.55 linear miles of wetland frontage exists along Deep Creek within the TDL for Deep
Creek Mine;

10.14 linear miles of wetland frontage exists along Deep Creek within the TDL for
Copper King Mine;

10:START-2\01020028\S759	7 - 30


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10.05 linear miles of wetland frontage exists along Deep Creek within the TDL for Sierra
Zinc Mine/Mill;

1.25 linear miles of wetland frontage exists along Republican Creek, 5.46 linear miles of
wetland frontage exists along Deep Creek, and 0.4 linear mile of wetland frontage exists
along Deep Lake within the TDL for Electric Point Mine/Mill;

6.54 linear miles of wetland frontage exists along Deep Creek and 0.4 linear mile of
wetland frontage exists along Deep Lake within the TDL for Gladstone Mine/Mill;

0.5 linear mile of wetland frontage exists along Hartbauer Creek, 8.62 linear miles of
wetland frontage exists along Deep Creek, and 0.4 linear mile of wetland frontage exists
along Deep Lake within the TDL for Red Top Mine;

8.93 linear miles of wetland frontage exists along Deep Creek and 0.4 linear mile of
wetland exists along Deep Lake within the TDL for Anderson Calhoun Mine/Mill;

0.5 linear mile of wetland frontage exists along Hartbauer Creek, 7.64 linear miles of
wetland frontage exists along Deep Creek, and 0.4 linear mile of wetland frontage exists
along Deep Lake within the TDL for Iroquois Mine; and

1.37 linear miles of wetland frontage exists along Lake Roosevelt within the TDL for
Melrose Mine.

7.21 SAMPLE LOCATIONS

Two sediment samples were collected near L-Bar/Northwest Magnesite to determine whether
contaminants from sources at L-Bar/Northwest Magnesite have impacted the West Ditch and the Colville
River (Figure 6-4). LBDT01SD was collected in the West Ditch approximately 400 feet south of the
confluence with the Colville River. LBPP01SD was collected in the Colville River at the confluence
with the West Ditch.

Two sediment samples were collected near Northwest Alloys to determine whether contaminants
from sources at Northwest Alloys have impacted Stensgar Creek and the Colville River (Figure 6-6).
NACK01SD was collected in Stensgar Creek approximately 50 feet east of the confluence of the ditch
with Stensgar Creek. NAPP01SD was collected at the confluence of Stensgar Creek with the Colville
River.

One sediment sample was collected at Deep Creek Mine to determine whether contaminants
from the tailings and waste rock piles have impacted Deep Creek (Figure 6-26). DCSD01SD was
collected on the west shore of Deep Creek near waste rock pile 1 which drains by sheet flow into Deep
Creek.

One sediment sample was collected at Anderson Calhoun Mine/Mill to determine whether
contaminants from the tailings and waste rock piles have impacted the unnamed creek (Figure 6-38).

10:START-2\01020028\S759

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ANCK01SD was collected at the northern end of the property adjacent to private farmland and
downgradient from the tailings and waste rock piles.

Samples collected from tributaries by WESTON that are associated with the mines/mills are as
follows (Appendix H):

•	Magee Creek, associated with Daisy Mine (TS013);

•	Onion Creek, associated with Van Stone Mine/Mill (TS099); and

•	Deep Creek, associated with Black Rock Mine/Mill, Great Western Mine, Last Chance
Mine/Mill, Deep Creek Mine, Copper King Mine, Sierra Zinc Mine/Mill, Electric Point
Mine/Mill, and Gladstone Mine (TS105).

7.22 SAMPLE RESULTS

L-Bar/Northwest Magnesite. Sample results are summarized in Tables 7-2 and 7-3. No
analytes were detected at elevated concentrations in the sediment sample collected from the West Ditch.
Lead was detected at an elevated concentration in the sediment sample collected from the Colville River,
however, this analyte was not similarly detected in corresponding PPE sediment samples.

Northwest Alloys. Sample results are summarized in Tables 7-4 and 7-5. No analytes were
detected at elevated concentrations in the sediment samples collected from Stensgar Creek or from the
Colville River.

Deep Creek Mine. Sample results are summarized in Table 7-6. No analytes were detected at
elevated concentrations in the sediment sample collected in Deep Creek.

Anderson Calhoun Mine/Mill. Sample results are summarized in Table 7-7. No analytes were
detected at elevated concentrations in the sediment sample collected in the unnamed creek.

Refer to Appendix H for WESTON's tributary sample results.

10:START-2\01020028\S759

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Table 7-1

PROBABLE POINT OF ENTRY LOCATIONS
UPPER COLUMBIA RIVER MINES AND MILLS
PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS
	STEVENS COUNTY, WASHINGTON	

PROPERTY

PPE

LOCATION

Daisy Mine
(Figure 6-2)

PPE 1

A wet area originating from the shaft and extending towards
Magee Creek.

L-Bar/Northwest Magnesite
(Figure 6-4)

PPE 1

The confluence of the Main Ditch with the Colville River.

Northwest Alloys
(Figure 6-6)

PPE 1

The confluence of the ditch with Stensgar Creek.

Napoleon Mine/Mill
(Figure 6-8)

PPE 1

The confluence of adit discharge and the intermittent creek.

Van Stone Mine/Mill
(Figures 6-13 and 6-14)

PPE 1

The confluence of tailings pile to the fourth unnamed creek near
the entrance to the mine/mill.

PPE 2

The confluence of tailings pile to the fourth unnamed creek near
the entrance to the mine/mill.

PPE 3

The confluence of the excess mine pit water that seeps through
rock-fill to the adjacent creek.

PPE 4

The confluence of the old tailings pile to the second unnamed
creek located at the southwest portion of the pile.

LeRoi/Northport Smelter
(Figure 6-17)

PPE 1

The former tailings pile adjacent to a recently constructed ditch.

PPE 2

Recently constructed ditch where a former tailing pile potentially
was located.

PPE 3

The slag pile on the shore of the Columbia River.

Last Chance Mine/Mill
(Figure 6-22)

PPE 1

The adit discharge which flows into the unnamed creek.

PPE 2

The adit discharge that continues west past the waste rock piles,
through the tailings pile and infiltrates the ground prior to
reaching the Colville-Alladin Northport Road.

Deep Creek Mine
(Figure 6-24)

PPE 1

Potential overland flow from the waste rock pile to Deep Creek.

PPE 2

A swampy area located south of the gated entrance could flow to
Deep Creek.

Copper King Mine
(Figure 6-26)

PPE 1

There is a potential that during heavy flow adit 2 discharge could
reach Deep Creek.

Sierra Zinc Mine/Mill
(Figure 6-28)

PPE 1

There could be potential overland flow from the tailings to the
drainage ditch.

Anderson Calhoun Mine/Mill
(Figure 6-36)

PPE 1

A marshy wetland area was noted on the western portion of the
stream and adjacent to the eastern portion of the tailings pile and
evaporation pond.

Melrose Mine
(Figure 6-40)

PPE 1

Adit discharge flows approximately 40 feet east to an unnamed
tributary that feeds into Tom Bush Creek.	

Key:
PPE

Probable point of entry.

7-33


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Table 7-2



L-BAR/NORTHWEST MAGNESITE
DITCH SEDIMENT SAMPLES ANALYTICAL RESULTS SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS
PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS
STEVENS COUNTY, WASHINGTON

EPA Sample ID

01374104

01374101

CLP Inorganic ID

MJ0KC4

MJ0KC1

CLP Organic ID

J0KC4

J0CK1

E & E Sample ID

01090404

01090401

Station Location

LBBK01SD

LBDT01SD

Sample Depth (inches)

0-8

0-8

Description

Background

Ditch

TAL Metals (mg/kg)

Aluminum

20200

18600

Arsenic

12.1

9.4

Barium

450

332

Cadmium

3.4

1.1 IB

Calcium

39600

7670

Chromium

32.3

22.4

Cobalt

11.9

7.3 IB

Copper

69.3

70.4

Iron

27900

20700

Lead

124

34.7

Magnesium

33500

29000

Manganese

673

388

Mercury

0.10 IB
(0.10 SQL)

0.14 U

Nickel

31.9

17.9 JB

Potassium

3920 JK

13400 JK

Selenium

0.7 UJK

12.4 JL

Vanadium

47.4

39

Zinc

239

206

Note:	Bold type indicates sample concentration is above the detection limit.

Underlined type indicates the sample results is significant as defined in Section 5.

Key:

B	= The reported concentration is between the instrument detection limit and the contract required detection 1

BK	= Background.

CLP	= Contract Laboratory Program.

DT	= Ditch.

E & E	= Ecology and Environment, Inc.

EPA	= United States Environmental Protection Agency.

ID	= Identification.

J	= The analyte was positively identified. The associated numerical value is an estimate.

K	= Unknown bias.

L	= Low bias.

LB	= L-Bar/Northwest Magnesite.

mg/kg	= Milligrams per kilogram.

SD	= Sediment.

SQL	= Sample quantitation limit.

TAL	= Target Analyte List.

U	= The analyte was not detected. The associated numerical value is the contract required detection limit.

7-34


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Table 7-3



L-BAR/NORTHWEST MAGNESITE

RIVER SEDIMENT SAMPLES ANALYTICAL RESULTS SUMMARY

UPPER COLUMBIA RIVER MINES AND MILLS

PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON

EPA Sample ID

01374111

01374110

CLP Inorganic ID

MJ0KD2

MJ0KD1

CLP Organic ID

J0KD2

J0KD1

E & E Sample ID

01090411

01090410

Station Location

LBBK02SD

LBPP01SD

Sample Depth (inches)

0-8

0-8

Description

Background

Colville River

TAL Metals (mg/kg)

Aluminum

3960

8500

Arsenic

2.8

5.0 JK

Barium

63.0

133

Cadmium

0.05 U

0.07 U

Calcium

5740

7610

Chromium

6.8

14.1

Cobalt

4.7 JB

7.0 JB



(12.4 SQL)



Copper

6.5

12.3

Iron

10200

16800

Lead

4.5

115

Magnesium

3720

6450

Manganese

144

273

Mercury

0.06 U

0.08 U

Nickel

7.0 JB

14.1



(9.9 SQL)



Potassium

603 IB

1560 JB

Selenium

0.84 UJL

1.1 JB

Vanadium

10.9 IB

23.0



(12.4 SQL)



Zinc

26.5

52.2

Note:	Bold type indicates sample concentration is above the detection limit.

Underlined type indicates the sample results is significant as defined in Section 5.

Key:

B	= The reported concentration is between the instrument detection limit and the contract required detection limit.

BK	= Background.

CLP	= Contract Laboratory Program.

E & E	= Ecology and Environment, Inc.

EPA	= United States Environmental Protection Agency.

ID	= Identification.

J	= The analyte was positively identified. The associated numerical value is an estimate.

K	= Unknown bias.

L	= Low bias.

LB	= L-Bar/Northwest Magnesite.

mg/kg	= Milligrams per kilogram.

PP	= PPE.

PPE	= Probable point of entry.

SD	= Sediment.

SQL	= Sample quantitation limit.

TAL	= Target Analyte List.

U	= The analyte was not detected. The associated numerical value is the contract required detection limit.

7-35


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Table 7-4



NORTHWEST ALLOYS



CREEK SEDIMENT SAMPLES ANALYTICAL RESULTS SUMMARY

UPPER COLUMBIA RIVER MINES AND MILLS

PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON

EPA Sample ID

01374108

01374106

CLP Inorganic ID

MJ0KC8

MJ0KC6

CLP Organic ID

J0KC8

J0KC6

E & E Sample ID

01090408

NACK01SD

Station Location

NABK01SD

NACK01SD

Sample Depth (inches)

0-8

0-8

Description

Background

Creek

TAL Metals (mg/kg)

Aluminum

2080

2490

Arsenic

1.1 UJK

1.9 JB

Barium

34.0 IB

41.4 JB



(48.8 SQL)



Calcium

2730

5590

Chromium

5.4

4.9

Copper

2.8 JB

4.3 JB



(6.1 SQL)



Iron

5590

6910

Lead

2.0

2.5

Magnesium

1430

1800

Manganese

91.7

105

Nickel

3.6 JB

4.9 JB



(9.8 SQL)



Potassium

605 JB

423 JB

Vanadium

8.9 JB

9.5 JB



(12.2 SQL)



Zinc

10.8

14.4

Note:	Bold type indicates sample concentration is above the detection limit.

Key:

B	= The reported concentration is between the instrument detection limit and the contract required detection

BK	= Background.

CK	= Creek.

CLP	= Contract Laboratory Program.

E & E	= Ecology and Environment, Inc.

EPA	= United States Environmental Protection Agency.

ID	= Identification.

J	= The analyte was positively identified. The associated numerical value is an estimate.

K	= Unknown bias.

mg/kg	= Milligrams per kilogram.

NA	= Northwest Alloys.

SD	= Sediment.

SQL	= Sample quantitation limit.

TAL	= Target Analyte List.

U	= The analyte was not detected. The associated numerical value is the contract required detection limit.

7-36


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Table 7-5



NORTHWEST ALLOYS
RIVER SEDIMENT SAMPLES ANALYTICAL RESULTS SUMMARY
UPPER COLUMBIA RIVER MINES AND MILLS
PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS
STEVENS COUNTY, WASHINGTON

EPA Sample ID

01374109

01374105

CLP Inorganic ID

MJ0KC9

MJ0KC5

CLP Organic ID

J0CK9

J0KC5

E & E Sample ID

01090409

01090405

Station Location

NABK02SD

NAPP01SD

Sample Depth (inches)

0-8

0-8

Description

Background

Colville River

TAL Metals (mg/kg)

Aluminum

13100

10100

Arsenic

4.3 JK

4 JB

Barium

205

182

Calcium

4940

8150

Chromium

24.7

14.6

Copper

21.3 JK

16.1

Iron

27900

17500

Lead

13.8

8.5

Magnesium

6940

5070

Manganese

507

364

Nickel

25.4

14.9 JB

Potassium

2550 JK

1640 JB

Vanadium

36.9

21.6 JB

Zinc

78.2

58.2

Note:	Bold type indicates sample concentration is above the detection limit.

Key:

B	= The reported concentration is between the instrument detection limit and the
contract required detection limit.

BK	= Background.

CLP	= Contract Laboratory Program.

E & E	= Ecology and Environment, Inc.

EPA	= United States Environmental Protection Agency.

ID	= Identification.

J	= The analyte was positively identified. The associated numerical value is an estimate.

K	= Unknown bias.

mg/kg	= Milligrams per kilogram.

NA	= Northwest Alloys.

PPE	= Probable point of entry.

SD	= Sediment.

SQL	= Sample quantitation limit.

TAL	= Target Analyte List.

U	= The analyte was not detected. The associated numerical value is the contract required detection limit.

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Table 7-6



DEEP CREEK MINE
SEDIMENT SAMPLES ANALYTICAL RESULTS SUMMARY

UPPER COLUMBIA RIVER MINES AND MILLS
PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS
STEVENS COUNTY, WASHINGTON

EPA Sample ID



01254275

CLP Inorganic ID



MJ0EQ9

CLP Organic ID



NU

E & E Sample ID



NU

Station Location



DCSD01SD

Sample Depth (inches)



0-6

Description

Background

Deep Creek

TAL Metals (mg/kg)

Aluminum

20200

4430

Arsenic

13.0

1.3 U

Barium

450

39.6 IB

Cadmium

3.4

0.08 U

Calcium

109000

9860

Chromium

32.3

7.1

Cobalt

11.9

3 JB

Copper

69.3

2.5 IB

Iron

27900

8640

Lead

124

5.5

Magnesium

33500

6100

Manganese

673

117

Nickel

31.9

6.1 JB

Potassium

3920 JK

818 JB

Vanadium

47.4

11 JB

Zinc

239

33.2

Note:	Bold type indicates sample concentration is above the detection limit.

Key:

B	= The reported concentration is between the instrument detection limit and the contract required detection limit.

CLP	= Contract Laboratory Program.

DC	= Deep Creek Mine.

E & E	= Ecology and Environment, Inc.

EPA	= United States Environmental Protection Agency.

ID	= Identification.

J	= The analyte was positively identified. The associated numerical value is an estimate.

K	= Unknown bias.

mg/kg	= Milligrams per kilogram.

SD	= Sediment.

TAL	= Target Analyte List.

U	= The analyte was not detected. The associated numerical value is the contract required detection limit.

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Table 7-7



ANDERSON CALHOUN MINE/MILL

SEDIMENT SAMPLES ANALYTICAL RESULTS SUMMARY

UPPER COLUMBIA MINES AND MILLS

PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS

STEVENS COUNTY, WASHINGTON

EPA Sample ID



01374177

CLP Inorganic ID



MJ0KJ6

CLP Organic ID



J0KH4

E & E Sample ID



01090428

Station Location



ANCK01SD

Sample Depth (inches)



0-8

Description

Background

Unnamed Creek

TAL Metals (mg/kg)

Aluminum

20200

9060 JK

Arsenic

13.0

13.3 JB

Barium

450

8720 JK

Cadmium

3.4

6.0 JB

Calcium

109000

69200 JK

Chromium

32.3

27.8 JK

Cobalt

11.9

10.5 JB

Copper

69.3

34.9 JB

Iron

27900

29200 JK

Lead

124

43.0 JK

Magnesium

33500

5850 JB

Manganese

673

926 JK

Mercury

0.10 JB

R



(0.102 SQL)



Nickel

31.9

33.2 JB

Potassium

3920 JK

1300 JB

Selenium

1.4 JB

12.1 JK



(1.7 SQL)



Vanadium

47.4

33.9 JB

Zinc

239

155 JK

Pesticide/PCBs (Hg/kg)

Endrin Ketone

4.0

18 U

Note:	Bold type indicates sample concentration is above the detection limit.

Underlined type indicates the sample results is elevated as defined in Section 5.

Key:

AN	= Anderson Calhoun Mine/Mill.

B	= The reported concentration is between the instrument detection limit and the contract required detection limit.

CK	= Creek.

CLP	= Contract Laboratory Program.

E & E	= Ecology and Environment, Inc.

EPA	= United States Environmental Protection Agency.

ID	= Identification.

J	= The analyte was positively identified. The associated numerical value is an estimate.

K	= Unknown bias.

mg/kg	= Milligrams per kilogram.

jitg/kg	= Micrograms per kilogram.

PCBs	= Poly chlorinated biphenyls.

R	= The data are unusable for all purposes.

S	= Sediment.

SQL	= Sample quantitation limit.

TAL	= Target Analyte List.

U	= The analyte was not detected. The associated numerical value is the contract required detection limit.

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8. SUMMARY AND CONCLUSIONS

In June and September 2001, the ST ART -2 conducted P As and Sis of mines/mills located near
the upper Columbia River in Stevens County, Washington.

The purpose of the PAs and Sis were to identify and investigate potential sources of
contamination to the upper Columbia River. Of the 39 mines/mills visited, sampling was conducted at
18 properties. Sampling was conducted at those mines/mills where potential sources of contamination
were identified and potential impacts to receptors via the surface water migration pathway were
observed.

The PAs and Sis activities involved the collection of samples from potential hazardous substance
source areas and from target areas/receptors potentially impacted by contaminant migration. A total of
216 samples submitted for EPA CLP methods of analysis were collected, including background samples
but excluding QA samples. The media sampled included surface soil, tailings, waste rock, surface water
and sediment. Section 8.1 summarizes the findings and conclusions for those mines/mills that were
sampled. This section does not include a discussion for sites that were not sampled. Sampling was not
conducted at sites where no contaminant source was observed and/or where no surface water features
including overland drainage routes were identified. Recommendations for all sites are presented in
Table 8-1.

8.1 FINDINGS AND CONCLUSIONS
8.1.1 Daisy Mine

Samples were collected from potential contaminant source areas at the Daisy Mine including a
tailings pile and shaft. A PPE sample was also collected. The tailings pile measured 150 feet at the base,
30 feet in height with a slope of approximately 35%, and a depth of approximately 45 feet. The shaft
measured 10 feet by 10 feet by unknown depth. A wet area originating from the shaft extended south
approximately 25 feet. A depression south of the wet area was noted where potential pooling of water
from the shaft would occur which would then flow into the ditch, past the culvert, and into Magee Creek
approximately 70 feet (PPE 1).

10:START-2\01020028\S759

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Surface soil samples collected from the tailings pile contained significant concentrations of TAL
metals including arsenic (233 mg/kg) and mercury (2.9 mg/kg).

Analytes detected in the discharge from the shaft include arsenic (95.3 /ig/L). cadmium
(7.1 (A.g/L), lead (5.2 (A.g/L), and zinc (829 (Ag/L).

No elevated concentrations of TAL metals were detected in the PPE sample.

Based on an evaluation of technical data using the EPA HRS model criteria, no further action
under CERCLA is recommended at the Daisy Mine site.

8.1.2 L-Bar/Northwest Magnesite

The contaminant sources at L-Bar/Northwest Magnesite includes a magnesite pile, and flux bar
and flux bar residue. The magnesite residue pile measures approximately 30 feet deep and 17 acres in
area. Past operating practices and inadequate storage of flux bar and flux bar residue have resulted in
elevated levels of mostly chloride and ammonia in shallow groundwater and surface water. Most of the
materials remaining on the plant have continued to leach salts and ammonia into shallow groundwater
and surface water in two ditches. (Ecology 2001)

Sediment samples were collected during the Phase I RI from six locations: three in the Main
Ditch, two in the West Ditch, and one from the Logan Road ditch south of the property. Review of trace
metals analyses shows that barium, manganese, and selenium concentrations in the Main Ditch sediment
samples exceeded the concentrations detected in the background sample collected from Logan Road
ditch south of the property. Trace metals results from the West Ditch samples were similar to Main
Ditch samples in that background concentrations were exceeded for arsenic, barium, copper, manganese,
and selenium. Concentrations of these metals were less than 2 times background levels except for
selenium, which was approximately 7 times background. (CH2MHill 1998)

Sediment samples were collected at two PPEs by the START-2 in the West Ditch. One
downstream sediment sample was also collected from the West Ditch and one sediment sample was
collected from the Colville River.

Samples collected from the West Ditch contained elevated concentrations of TAL metals
including selenium (18.0 mg/kg JK).

Lead was detected at an elevated concentration in the Colville River sample; however, this
analyte was not similarly detected in PPE samples.

Based on an evaluation of technical data using the EPA HRS model criteria, further action under
CERCLA or other authorities is recommended at the L-Bar/Northwest Magnesite site. A Cleanup Action

10:START-2\01020028\S759

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Plan for the site was approved by Ecology in June 2000 requiring source removal, monitoring, and
institutional controls.

8.1.3	Northwest Alloys

The plant is contained within gates and hillsides. There is no overland flow from the site directly
into the Colville River due to topography. A potential overland flow exists on the western portion of the
plant. The overland flow potentially flows through ditches (PPE 1) south towards Stensgar Creek.

Stensgar Creek, located south of the plant, maintains brown trout. Stensgar Creek feeds into the Colville
River. One PPE sample and two target/receptor samples were collected.

Samples collected in the ditch at PPE 1 contained elevated concentrations of arsenic (4.9 mg/kg),
copper (18.7 mg/kg), lead (7.5 mg/kg), and zinc (47.9 mg/kg). No elevated concentrations of TAL metals
were detected in target/receptor samples.

Based on an evaluation of technical data using the EPA HRS model criteria, no further action
under CERCLA is recommended at the Northwest Alloys site. However, voluntary cleanup actions
currently are being carried out at the site under the Model Toxics Cleanup Authority, Voluntary Cleanup
Program administered by Ecology's Industrial Section.

8.1.4	Napoleon Mine/Mill

The mine/mill area consisted of an adit measuring 5 feet by 4 feet located south of the dirt road
entrance. There was no evidence of tailings or waste rock present on the property. The adit discharge
flowed across the dirt road, down the hillside approximately 120 feet before entering an intermittent
creek (PPE 1). Iron staining was present on the soil and the dirt road. There was no adit discharge at the
time of the visit. One surface water sample from the adit was collected. One PPE sample was also
collected.

Analytes detected in the discharge from the adit include lead (11.3 /ig/L), and zinc (937 /ig/L).

Significant levels of TAL metals were detected in the PPE sample including copper (207 mg/kg)
and silver (2.3 mg/kg).

Analytical results of samples collected indicate that hazardous substances are migrating to
targets/receptors.

Based on an evaluation of technical data using the EPA HRS model criteria, no further action
under CERCLA is recommended at the Napoleon Mine/Mill site.

10:START-2\01020028\S759

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8.1.5	Van Stone Mine/Mill

Samples were collected from potential contaminant source areas at the Van Stone Mine/Mill
including a waste rock pile, two tailings piles, 7 stained soil areas, and mine pit water. Four PPE samples
were also collected.

Surface soil samples collected from source areas contained significant concentrations of TAL
metals including cadmium (940 mg/kg), lead (181,000 mg/kg), mercury (6.0 mg/kg), and zinc
(431,000 mg/kg).

The PPE samples contained elevated concentrations of TAL metals including cadmium
(11.9 mg/kg) and zinc (3,670 mg/kg).

In the past, the mine, slurry flume, and tailings piles were likely a source of sediment to streams
in the Onion Creek watershed. Based on aerial photo evidence and anecdotal reports from area residents,
the slurry flume periodically broke, and the tailings slurry was dumped into the stream north of the old
tailings pile for hours at a time before the break was discovered and repaired. In addition, it is reported
that the old tailings pile wall was breached at least once in the past, transporting tailings material into the
stream. (Boise Cascade Corporation 1997)

The newtailings pile is not reported to have had any major erosion occurrences; however, there
is a layer of tailings material several feet thick covering the stream valley north of the newtailings pile
(Boise Cascade Corporation 1997).

At present, the steep outer walls of the tailings piles are subject to surface erosion, as evidenced
by the rills and gullies developed on the walls. A small berm has been made around the tailings piles to
contain eroded material and is effective in containing eroded material. The owner is testing erosion
control methods on the tailings pile walls. (Boise Cascade Corporation 1997)

Analytical results of samples collected indicate that hazardous substances are migrating to
targets/receptors.

Based on an evaluation of technical data using the EPA HRS model criteria, further action under
CERCLA or other authorities is recommended at the Van Stone Mine/Mill site.

8.1.6	LeRoi/Northport Smelter

Samples were collected from potential contaminant source areas at the LeRoi/Northport Smelter
including surface soil west of the former tailings area underneath slag bricks, sediment from slag areas
along the Columbia River adjacent to the smelter (PPE 3), and sediment in the western portion of the
recently constructed ditch where the former tailings pile was located (PPE 1 and PPE 2).

10:START-2\01020028\S759

8-4


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Surface soil samples from source areas contained significant concentrations of TAL metals
including arsenic (297 mg/kg JL), cadmium (105 mg/kg), lead (10,500 mg/kg), mercury (0.40 mg/kg),
and zinc (5,420 mg/kg).

Sediment samples collected from the Columbia River contained elevated concentrations of T AL
metals including arsenic (41.4 mg/kg), cadmium (4.9 mg/kg), copper (2,960 mg/kg), lead (845 mg/kg
JK), mercury (0.29 mg/kg), and zinc (16,900 mg/kg).

The ditch PPE samples contained elevated concentrations of TAL metals including arsenic
(39.9 mg/kg JK), cadmium (5.9 mg/kg JK), copper (1,090 mg/kg), lead (887 mg/kg JK), and zinc
(223 mg/kg).

Analytical results of samples collected indicate that hazardous substances are migrating to
targets/receptors.

Based on an evaluation of technical data using the EPA HRS model criteria, further action under
CERCLA or other authorities is recommended at the LeRoi/Northport Smelter site.

8.1.7	Black Rock Mine/Mill

Samples were collected from potential contaminant source areas at the Black Rock Mine/Mill
including a waste rock pile and soil near the collapsed mill building. No PPEs were identified by the
START-2.

Soil samples collected from source areas contained significant concentrations of TAL metals
including cadmium (1,630 mg/kg), lead (6,520 mg/kg), mercury (26.4 mg/kg) and zinc (402,000 mg/kg).

Based on an evaluation of technical data using the EPA HRS model criteria, no further action
under CERCLA is recommended at the Black Rock Mine/Mill site.

8.1.8	Great Western Mine

Samples were collected from potential contaminant source areas at the Great Western Mine
including two waste rock piles. No PPEs were identified by the START-2.

Samples collected from the waste rock piles contained significant concentrations of TAL metals
including cadmium (490 mg/kg JL), lead (24,000 mg/kg), mercury (4.3 mg/kg), and zinc
(118,000 mg/kg JK).

Based on an evaluation of technical data using the EPA HRS model criteria, no further action
under CERCLA is recommended at the Great Western Mine site.

10:START-2\01020028\S759

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8.1.9	Last Chance Mine/Mill

Samples were collected from potential contaminant source areas at the Last Chance Mine/Mill
including waste rock piles, tailings pile, soil from the former mill building area, and adit discharge. Two
PPE samples were also collected.

Surface soil samples collected from the waste rock piles, tailings pile, and the former mill
building area contained significant concentrations of TAL metals including cadmium (518 mg/kg JH),
lead (170,000 mg/kg), mercury (2.7 mg/kg), and zinc (112,000 mg/kg).

The PPE samples contained elevated concentrations of TAL metals including cadmium
(56.9 mg/kg JH), lead (14,600 mg/kg), mercury (1.2 mg/kg), and zinc (13,400 mg/kg).

Analytical results of samples collected indicate that hazardous substances are migrating to
targets/receptors.

Based on an evaluation of technical data using the EPA HRS model criteria, further action under
CERCLA or other authorities is recommended at the Last Chance Mine/Mill site.

8.1.10	Deep Creek Mine

Samples were collected from potential contaminant source areas at the Deep Creek Mine
including waste rock piles, tailings piles, and adit discharge. One PPE sample was also collected.

Surface soil samples collected from the waste rock piles and tailings piles contained significant
concentrations of TAL metals including cadmium (425 mg/kg), lead (13,300 mg/kg), mercury
(3.2 mg/kg), and zinc (123,000 mg/kg).

Analytes detected in the discharge from the adit include lead (12.9 /ig/L), and zinc (558 /ig/L).

No elevated concentrations of TAL metals were detected in the PPE sample.

Based on an evaluation of technical data using the EPA HRS model criteria, no further action
under CERLCA is recommended at the Deep Creek Mine site.

8.1.11	Copper King Mine

Samples were collected from potential source areas at the Copper King Mine including waste
rock pile and adit discharge. One PPE sample was also collected.

Surface soil samples collected from the waste rock pile contained significant concentrations of
TAL metals including copper (1,700 mg/kg), selenium (18.9 mg/kg), and thallium (3.7 mg/kg).

Analytes detected in the discharge from the adit include lead (17.9 /ig/L), and zinc (180 /ig/L).

No elevated concentrations of TAL metals were detected in the PPE sample.

10:START-2\01020028\S759

8-6


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Based on an evaluation of technical data using the EPA HRS model criteria, no further action
under CERCLA is recommended at the Copper King Mine site.

8.1.12	Sierra Zinc Mine/Mill

Samples were collected from potential contaminant source areas at the Sierra Zinc Mine/Mill
including waste rock pile, tailings pile area, soil from mill area, and adit discharge.

Surface soil samples collected from the waste rock pile and tailings pile area contained
significant concentrations of TAL metals including cadmium (130 mg/kg), lead (15,800 mg/kg), mercury
(2.7 mg/kg JL), and zinc (33,400 mg/kg).

Analytes detected in the discharge from the adit include zinc (292 /ig/L).

Based on an evaluation of technical data using the EPA HRS model criteria, no further action
under CERCLA is recommended at the Sierra Zinc Mine/Mill site.

8.1.13	Electric Point Mine/Mill

Samples were collected from potential contaminant source areas at the Electric Point Mine/Mill
including waste rock piles, tailings pond, and soil from the mill area. No PPEs were identified by the
START-2.

Surface soil samples collected from source areas contained significant concentrations of TAL
metals including cadmium (25.0 mg/kg JL), lead (97,800 mg/kg), and zinc (33,800 mg/kg).

Based on an evaluation of technical data using the EPA HRS model criteria, no further action
under CERCLA is recommended at the Electric Point Mine/Mill site.

8.1.14	Gladstone Mine/Mill

Samples were collected from potential contaminant source areas at the Gladstone Mine/Mill
including tailings pile and soil from the potential mill area. No PPEs were identified by the START-2.

Surface soil samples collected from source areas contained significant concentrations of lead
(94,000 mg/kg), mercury (0.30 mg/kg), and zinc (10,500 mg/kg).

Based on an evaluation of technical data using the EPA HRS model criteria, no further action
under CERCLA is recommended at the Gladstone Mine/Mill site.

10:START-2\01020028\S759

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8.1.15	Red Top Mine

Samples were collected from potential contaminant source areas at the Red Top Mine including a
waste rock pile. No PPEs were identified by the START-2.

Surface soil samples collected from the waste rock pile contained significant concentrations for
cadmium (177 mg/kg JH), lead (28,900 mg/kg), mercury (1.1 mg/kg), and zinc (15,700 mg/kg).

Based on an evaluation of technical data using the EPA HRS model criteria, no further action
under CERCLA is recommended at the Red Top Mine site.

8.1.16	Anderson Calhoun Mine/Mill

Samples were collected from potential contaminant source areas at the Anderson Calhoun
Mine/Mill including tailings piles, stained surface soil areas, and mine/mill pit water. One PPE sample
was also collected.

Surface soil samples collected from the tailings pile and stained soil area contained significant
concentrations of TAL metals including cadmium (129 mg/kg), lead (2,190 mg/kg), mercury
(0.35 mg/kg), and zinc (49,000 mg/kg).

Analytes detected in the mine/mill pit water include lead (192 /ig/L) and zinc (1,480 /ig/L).
The PPE sample contained elevated concentrations of TAL metals including arsenic
(10.0 mg/kg), cadmium (7.5 mg/kg), lead (320 mg/kg), mercury (0.17 mg/kg), and zinc (3,250 mg/kg).
Analytical results of samples collected indicate that hazardous substances are migrating to
targets/receptors.

Based on an evaluation of technical data using the EPA HRS model criteria, further action under
CERCLA or other authorities is recommended at the Anderson Calhoun Mine/Mill site.

8.1.17	Iroquois Mine

Samples were collected from potential contaminant source areas at the Iroquois Mine including
waste rock pile and adit discharge. No PPEs were identified by the ST ART -2.

Surface soil samples collected from the waste rock pile contained significant concentrations of
TAL metals including cadmium (39.1 mg/kg), mercury (0.49 mg/kg), and zinc (12,300 mg/kg).

Analytes detected in the adit discharge include zinc (583 /ig/L).

Based on an evaluation of technical data using the EPA HRS model criteria, no further action
under CERCLA is recommended at the Iroquois Mine site.

10:START-2\01020028\S759

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8.1.18 Melrose Mine

Samples were collected from potential contaminant source areas at Melrose Mine including adit
discharge. One PPE sample was also collected.

Analytes detected in the adit discharge include zinc (433 /ig/L).

The PPE sample contained elevated concentrations of TAL metals including cadmium
(22.8 mg/kg JH) and zinc (1,650 mg/kg).

Analytical results of samples collected indicate that hazardous substances are migrating to
targets/receptors.

Based on an evaluation of technical data using the EPA HRS model criteria, no further action
under CERCLA is recommended at the Melrose Mine site.

10:START-2\01020028\S759

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Table 8-1





CERCLA RECOMMENDATIONS





UPPER COLUMBIA RIVER MINES AND MILLS



PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS



STEVENS COUNTY, WASHINGTON

EPA CERCLIS Number

Site Name

CERCLA Activity Type

Recommendation

WAN001002371

Daisy Mine

Preliminary Assessment/Site Inspection

No further action under CERCLA.

WAD097824577

L-Bar/Northwest Magnesite

Preliminary Assessment/Site Inspection

Further action under CERCLA.

WAD094626868

Northwest Alloys

Preliminary Assessment/Site Inspection

No further action under CERCLA.

WAN0010023 91

Napoleon Mine/Mill

Preliminary Assessment/Site Inspection

No further action under CERCLA.

WANOO1002374

First Thought Mine

Preliminary Assessment

No further action under CERCLA.

WANOO10023 84

Lottie Mine

Preliminary Assessment

No further action under CERCLA.

WANOO 1002378

HomestakeNo. 1 Mine

Preliminary Assessment

No further action under CERCLA.

WANOO 1002368

Antelope Mine

Preliminary Assessment

No further action under CERCLA.

WANOO 10023 80

Hubbard Mine

Preliminary Assessment

No further action under CERCLA.

WANOO 10023 92

New Leadville Mine

Preliminary Assessment

No further action under CERCLA.

WAN001002395

R.J. Mine

Preliminary Assessment

No further action under CERCLA.

WAD980834808

Van Stone Mine/Mill

Preliminary Assessment/Site Inspection

Further action under CERCLA.

WANOO 1002379

Hope & Twin Cabins Mine

Preliminary Assessment

No further action under CERCLA.

WAN001002398

St. Crispin Mine

Preliminary Assessment

No further action under CERCLA.

WAN001002393

Northport Mill

Preliminary Assessment

No further action under CERCLA.

WAD988507323

LeRoi/Northport Smelter

Preliminary Assessment/Site Inspection

Further action under CERCLA.

WANOO 1002369

Black Rock Mine/Mill

Preliminary Assessment/Site Inspection

No further action under CERCLA.

WANOO 1002377

Great Western Mine

Preliminary Assessment/Site Inspection

No further action under CERCLA.

WASFN1002162

Last Chance Mine/Mill

Preliminary Assessment/Site Inspection

Further action under CERCLA.

WASFN1002161

Deep Creek Mine

Preliminary Assessment/Site Inspection

No further action under CERCLA.

WANOO 1002370

Copper King Mine

Preliminary Assessment/Site Inspection

No further action under CERCLA.

WANOO 10023 96

Sierra Zinc Mine/Mill

Preliminary Assessment/Site Inspection

No further action under CERCLA.

WANOO 10023 87

Magma Mine

Preliminary Assessment

No further action under CERCLA.

WANOO 1002373

Farmer Mine

Preliminary Assessment

No further action under CERCLA.

WAN001002388

Maki Mine

Preliminary Assessment

No further action under CERCLA.

WANOO 1002372

Electric Point Mine/Mill

Preliminary Assessment/Site Inspection

No further action under CERCLA.

WANOO 1002376

Gladstone Mine/Mill

Preliminary Assessment/Site Inspection

No further action under CERCLA.

WANOO 10023 86

Lucky Four Mine

Preliminary Assessment

No further action under CERCLA.

WANOO 10023 94

Red Top Mine

Preliminary Assessment/Site Inspection

No further action under CERCLA.

WANOO 1002309

Anderson Calhoun Mine/Mill

Preliminary Assessment/Site Inspection

Further action under CERCLA.

WAN001002385

Lucile Mine

Preliminary Assessment

No further action under CERCLA.

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Table 8-1





CERCLA RECOMMENDATIONS
UPPER COLUMBIA RIVER MINES AND MILLS
PRELIMINARY ASSESSMENTS AND SITE INSPECTIONS
STEVENS COUNTY, WASHINGTON

EPA CERCLIS Number

Site Name

CERCLA Activity Type

Recommendation

WAN001002381

Iroquis Mine

Preliminary Assessment/Site Inspection

No further action under CERCLA.

WAN0010023 97

Silver Queen Mine

Preliminary Assessment

No further action under CERCLA.

WAN001002389

Melrose Mine

Preliminary Assessment/Site Inspection

No further action under CERCLA.

WAN001002383

Lakeview Mine

Preliminary Assessment

No further action under CERCLA.

WAN0010023 82

Jackson Mine

Preliminary Assessment

No further action under CERCLA.

WAN001002375

Frisco-Standard Mine

Preliminary Assessment

No further action under CERCLA.

WANOO10023 90

Myeerah Mine

Preliminary Assessment

No further action under CERCLA.

WAN001002399

United Treasure Mine

Preliminary Assessment

No further action under CERCLA.

Key:

CERCLA = Comprehensive Environmental Response, Compensation, and Liability Act of 1980.

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9. REFERENCES

Battien, Pauline, 1998, fifth printing, The Gold Seekers...a 200 Year History of Mining in Washington,
Idaho, Montana, and Lower British Columbia, Eastern Washington University Libraries,
Statesman-Examiner, Inc., Colville, Washington.

Beacon Hill Consultants Ltd. (Beacon), 1999, Reclamation and Closure Plan, prepared for Mano River
Resources Inc.

Boise Cascade Corporation, March 1997, Onion Creek Watershed Analysis, Kettle Falls, Washington.

Cawston, Colleen, August 2, 1999, Chair, Colville Business Council, Confederated Tribes of the Colville
Reservation, Nespelm, Washington, correspondence to Chuck Clark, Regional Administrator,
United States Environmental Protection Agency, Seattle, Washington.

CH2MHill, January 2001a, L-Bar Material Removal and Compliance Monitoring Work Plan, Final
Report, prepared for Northwest Alloys, Inc.

	, November 2001b, NWQuadrant Area Focused Investigation and Material Characterization,

Voluntary Cleanup Characterization Report, prepared for Northwest Alloys, Inc.

	, 1998, L-Bar Phase I Remedial Investigation Final Report, prepared for Northwest Alloys, Inc.

Derkey, Robert E., Nancy L. Joseph, Raymond Lasmanis, November 1990, Metal Mines of Washington,
Preliminary Report, Washington Division of Geology and Earth Resources, Open File Report
90-18, Washington State Department of Natural Resources.

Dumaine, Dan, September 24, 2002, correspondence with Monica Tonel, Task Manager, United States
Environmental Protection Agency, Seattle, Washington.

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United

United
United

United


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, 1992b, 1:24,000 Scale Topographic Map, Leadpoint, Washington.
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