PUBLIC HEALTH ASSESSMENT
AMERICAN CROSSARM AND CONDUIT COMPANY
CHEHALIS, LEWIS COUNTY, WASHINGTON
CERCLIS NO. WAD057311094
February 28, 1995
Prepared by
Washington State Department of Health
Under Cooperative Agreement with the
Agency for Toxic Substances and Disease Registry
TABLE OF CONTENTS
- A. Site Description and History
B. Site Visit
C. Demographics, Land Use, and Natural Resources Use
D. Health Outcome Data
ENVIRONMENTAL CONTAMINATION AND OTHER HAZARDS
- A. On-Site Contamination
B. Off-Site Contamination
C. Quality Assurance and Quality Control
D. Physical and Other Hazards
| ACC | American Crossarm and Conduit |
|---|---|
| ATSDR | Agency for Toxic Substance and Disease Registry |
| CPAH | Carcinogenic PAH value is for benzo(a)pyrene (see PAHs) |
| CREG | Cancer Risk Evaluation Guide (promulgating agency ATSDR). CREGs areestimated contaminant concentrations based on one excess cancer in a millionpersons exposed over a lifetime (70 years). CREGs are calculated from EPA'scancer slope factors. |
| dioxin | represents all isomers and congeners of dioxin and furans |
| EMEG | Environmental Media Evaluation Guide (promulgating agency ATSDR). EMEGsare screening values used to select chemical contaminants of potential healthconcern. EMEGs are estimated contaminant concentrations in particular media atwhich daily exposure would be unlikely to result in noncancer health effects. EMEGvalues are calculated by ATSDR using conservative exposure assumptions thatwould protect the most sensitive segment of the population. |
| EPA | U.S. Environmental Protection Agency |
| MRL | ATSDR developed minimal risk levels (MRLs) to evaluate health effects of chemicalcontaminants commonly found at hazardous waste sites. MRLs are estimates ofdaily exposure to contaminants below which noncancer, adverse health effects areunlikely to occur. If no MRL exists for a contaminant, a comparison value iscalculated from an Environmental Protection Agency (EPA) Rfd, an estimate of thedaily exposure to a contaminant that is unlikely to cause noncancer, adverse healtheffects. The resulting value is called an RMEG. |
| mg/kg | milligrams per kilogram, equivalent to ppm (see below) |
| ug/kg | micrograms per kilogram, equivalent to ppb (see below) |
| ng/kg | nanograms per kilogram, equivalent to ppt (see below) |
| ppm | parts per million (10E-6) one second in 11 & 1/2 days |
| ppb | parts per billion (10E-9) one second in 32 years |
| ppt | parts per trillion (10E-12) one second in 32,000 years |
| PAHs | polycyclic aromatic hydrocarbons |
| PCP | pentachlorophenol |
| RfD | Reference Dose (EPA). EPA's Reference Dose (RfD) and Reference Concentration(RfC) are estimates of the daily exposure to a contaminant that is unlikely to causeadverse health effects. |
| RI/FS | Remedial Investigation/Feasibility Study |
| RMEG | Reference Dose-based Media Evaluation Guide calculated using Reference Dose(RfD) (definition above). |
| WDOH | Washington State Department of Health |
