Public Health Assessment for Riverbank Army Ammunition Depot, Riverbank,Stanislaus County, California, Region 9. CERCLIS No. CA7210020759

摘要

Riverbank Army Ammunition Plant (RBAAP) comprises about 175 acres, consisting of145 acres within the Main Plant Area, and 30 acres of evaporation-percolation (E-P) ponds located about 1 1/2 miles north of the Main Plant Area. We evaluated the exposure potential from the identified areas of potential contamination or 'sites'. From the data and information gathered during and after our site visits, we identified nine scenarios which had a potential for human exposure. These scenarios are grouped in our evaluation into two sets of general settings: (1) Exposures from Groundwater Contamination in the Study Area West of the Main Facility, and (2) Exposures from contamination at the E-P Ponds area (1 1/2 miles north of the main facility). We evaluated exposure situations from past, current, and future scenarios. We concluded that all current potential exposure situations pose No Apparent Public Health Hazard.