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Pacific Southwest, Region 9: Superfund

Serving Arizona, California, Hawaii, Nevada, the Pacific Islands, and Tribal Nations

Lava Cap Mine

Superfund Site

Technical Document

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Date Title / pdf File
11/01/01 Remedial Investigation, Lava Cap Mine Superfund Site

Report section
File
Title page (7 Kb)
Cover.PDF
Contents (42 Kb)
Contents.PDF
Executive summary (55 Kb)
exsum.PDF
Section 1: Introduction (41 Kb, figures not included)
section1.PDF
Section 2: Physical and Ecological Characteristics (112 Kb, figures not included)
section2.PDF
Section 3: Remedial Investigation Approach (122 Kb, figures and most tables not included)
section3.PDF
Section 4: Nature and Extent of Contamination (200 Kb, figures not included)
Includes:
Table 4-13: Arsenic Concentrations in the Adit Discharge, Tailings Pile Seep, and at the Base of Log Dam
Table 4-15: Arsenic Concentrations in Monitoring Wells
Table 4-16: Groundwater Levels
Table 4-21: Summary of Mine Area Residential Well Arsenic Concentrations
Table 4-28: Arsenic Concentrations Detected in Residential Wells Along the LCC Drainage Below the Mine and Above Lost Lake
Table 4-35: Detected Arsenic Concentrations in Deposition Area Groundwater and Lost Lake Vicinity Residential Wells

Remaining tables presented in the table below.
section4.PDF
Section 5: Contaminant Fate and Transport (42 Kb)
section5.PDF
Section 6: Baseline Risk Assessment (235 Kb)
section6.PDF
Section 7: Summary and Conclusions (54 Kb, table not included)
section7.PDF
Section 8: References (18 Kb)
section8.PDF
Appendix A1: Summary of Analytical Results (573 Kb)
Appendix A1.pdf
Appendix A2: Sorted Results of DetectedCompounds (397 Kb)
Appendix A2.pdf
Appendix A3: Field and Laboratory Quality Control Sample Summary (7 Kb)
Appendix A3.pdf
Appendix B: Field Data Summary (16 Kb)
Appendix B.pdf
Appendix C1: Soil Boring Logs
hard copy only
Appendix C2: Well Construction Diagrams
hard copy only
Appendix C3: Soil Descriptions
hard copy only
Appendix D: Survey Data (17 Kb)
Appendix D.pdf
Appendix E: Public Release Draft Human Health Risk Assessment (Volume 2)
Appendix F: Public Release Draft Ecological Risk Assessment (Volume 2)
Complete document with all appendices, figures, and tables available in the records repositories for this site

Figures and Tables
File
Executive Summary, Table ES-2: Summary of Arsenic Results in Selected Media - Lava Cap Mine RI (8 Kb)
tableES-2.pdf
Section 3, Table 3-1: Environmental Samples Collected During the Lava Cap Mine RI Field Program (October 1999 through September 2000) (19 Kb)
table3-1.pdf
Section 3, Table 3-2: Well Construction Details (9 Kb)
table3-2.pdf
Section 3, Table 3-4: Summary of Abiotic Samples Associated With Each Biota Sample (13 Kb)
table3-4.pdf
Section 4, Tables 4-1 through 4-40 except 4-13, 4-15, 4-16, 4-21, 4-28, and 4-35 included in main text (151 Kb)
Table 4-1: Reference Area 1 (Upgradient of the Mine) Summary Statistics - Surface Soil
Table 4-2: Reference Area 1 (Little Clipper Creek Upstream of the Mine) Summary Statistics - Sediment
Table 4-3: Reference Area 1 (Little Clipper Creek Upstream of the Mine) Summary Statistics - Surface Water
Table 4-4: Reference Area 1 (Upgradient of the Mine) Summary Statistics - Groundwater
Table 4-5: Reference Area 1 Ambient Air Results
Table 4-6: Reference Area 2 (Clipper Creek Upstream of the Confluence with Little Clipper Creek) Summary Statistics - Surface Soil
Table 4-7: Reference Area 2 (Clipper Creek Upstream of the Confluence with Little Clipper Creek) Summary Statistics - Sediment
Table 4-8: Reference Area 2 (Clipper Creek Upstream of the Confluence with Little Clipper Creek) Summary Statistics - Surface Water
Table 4-9: Source Area Summary Statistics - Surface Soil
Table 4-10: Source Area Summary Statistics - Subsurface Soil
Table 4-11: Source Area Summary Statistics - Sediment
Table 4-12: Source Area Summary Statistics - Surface Water
Table 4-14: Source Area Summary Statistics - Groundwater
Table 4-17: Source Area Ambient Air Results
Table 4-18: Mine Area Summary Statistics - Surface Soil
Table 4-19: Mine Area Summary Statistics - Surface Water
Table 4-20: Residential Wells at the Mine, Summary Statistics - Groundwater
Table 4-22: Mine Area Ambient Air Results
Table 4-23: Little Clipper Creek Below Mine Summary Statistics - Surface Soil
Table 4-24: Little Clipper Creek Below Mine Summary Statistics - Sediment
Table 4-25: Little Clipper Creek Below Mine Summary Statistics - Surface Water
Table 4-27: Residential Wells Along Little Clipper Creek Below Mine, Summary Statistics - Groundwater
Table 4-29: Deposition Area and Lost Lake Summary Statistics - Surface Soil
Table 4-30: Deposition Area and Lost Lake Summary Statistics - Subsurface Soil
Table 4-31: Deposition Area and Lost Lake Summary Statistics - Sediment
Table 4-32: Deposition Area and Lost Lake Summary Statistics - Surface Water
Table 4-33: Deposition Area Summary Statistics - Groundwater
Table 4-34: Residential Wells in the Lost Lake Vicinity, Summary Statistics - Groundwater
Table 4-36: Deposition Area Ambient Air Results
Table 4-37: Downgradient of Lost Lake Ambient Air Results
Table 4-38: Downgradient of Lost Lake Summary Statistics - Surface Soil
Table 4-39: Downgradient of Lost Lake Summary Statistics - Sediment
Table 4-40: Downgradient of Lost Lake Summary Statistics - Surface Water
tables4-1to4-40.PDF
Section 4, Table 26: Arsenic Concentrations in Surface Water (26 Kb)
table4-26.pdf
Section 4, Table 4-41: Summary Statistics for Measured Contaminant Concentrations (mg/kg, dry weight) in Fish (12 Kb)
table4-41.pdf
Section 4, Table 4-42: Summary Statistics for Measured Concentrations (mg/kg, dry weight) in Aquatic Invertebrates (16 Kb)
table4-42.pdf
Section 4, Table 4-43: Summary Statistics for Contaminant Concentrations (mg/kg, dry weight) Measured in Frogs and Pollywogs (9 Kb)
table4-43.pdf
Section 4, Table 4-44: Summary Statistics for Contaminant Concentrations (mg/kg, dry weight) Measured in Terrestrial Plants (16 Kb)
table4-44.pdf
Section 4, Table 4-45: Summary Statistics for Contaminant Concentrations (mg/kg, dry weight) Measured in Terrestrial Invertebrates (16 Kb)
table4-45.pdf
Section 4, Table 4-46: Summary Statistics for Contaminant Concentrations (mg/kg, dry weight) Measured in Small Mammals (deer mice, Peromyscus maniculatus, and California voles, Microtus californicus) (15 Kb)
table4-46.pdf
Section 7, Table 7-1: Summary of Arsenic Results in Selected Media - Lava Cap Mine RI (8 Kb)
table7-1.pdf

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