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PUBLIC HEALTH ASSESSMENT

LOCKWOOD SOLVENT GROUNDWATER PLUME
(a/k/a LOCKWOOD SOLVENT GROUND WATER PLUME)
BILLINGS, YELLOWSTONE COUNTY, MONTANA
EPA FACILITY ID: MT0007623052

July 7, 2003

Prepared by:

Superfund Site Assessment Branch
Division of Health Assessment and Consultation
Agency for Toxic Substances and Disease Registry


TABLE OF CONTENTS

ACRONYMS AND ABBREVIATIONS

SUMMARY

PURPOSE AND PUBLIC HEALTH ISSUES

BACKGROUND

ENVIRONMENTAL CONTAMINATION

DISCUSSION OF EXPOSURE PATHWAYS

DISCUSSION OF PUBLIC HEALTH SIGNIFICANCE OF CONTAMINANTS

DISCUSSION OF COMMUNITY HEALTH CONCERNS

CHILD HEALTH CONSIDERATIONS

ATSDR NATIONAL EXPOSURE REGISTRY, TRICHLOROETHYLENE SUBREGISTRY

HEALTH EDUCATION AND PROMOTION

CONCLUSIONS

RECOMMENDATIONS

PUBLIC HEALTH ACTION PLAN

SITE TEAM

REFERENCES

APPENDICES


LIST OF ACRONYMS AND ABBREVIATIONS
ATSDR Agency for Toxic Substances and Disease Registry
CERCLA Comprehensive Environmental Response, Compensation and Liability Act
Cis-1,2-dichloroethene cis-1,2-DCE
CREG Cancer Risk Evaluation Guide
EMEG Environmental Media Evaluation Guide
EPA U.S. Environmental Protection Agency
kg Kilogram
LTHA Lifetime Health Advisory
LU.S.T Leaking Underground Storage Tank
LWSD Lockwood Water and Sewer District
mg Milligram
mg/L Milligrams per Liter
MCL Maximum Contaminant Level
MRL Minimal Risk Level
MOS Margin of Safety
aMRL Acute Minimal Risk Level
iMRL Intermediate Minimal Risk Level
cMRL Chronic Minimal Risk Level
MDEQ Montana Department of Environmental Quality
ND Not Detected
NPL National Priorities List
PCE Tetrachloroethene, Tetrachlroroethylene
PHA Public Health Assessment
PHAP Public Health Action Plan
ppm Parts Per Million
RAL Removal Action Level
cRfC Chronic Reference Concentration
RBC Risk Based Concentration
RMEG Reference Media Evaluation Guide
SSL Soil Screening Level
TCE Trichloroethene, Trichloroethylene
µg Microgram
µg/m3 Microgram per cubic meter air
VOC Volatile Organic Compound


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