Evaluation of the Basis for Drinking-Water Contaminant Level Goals and Maximum Contaminant Levels
MITRETEK SYSTEMS INC SAN ANTONIO TX
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SAFIEE requested AFIERAs assistance in conducting a historical assessment of environmental standards set by the Environmental Protection Agency EPA and the health risk levels indicated by the risk characterizations for contaminant. The objective of this report is to assess the appropriateness of using Maximum Contaminant Levels MCLsas groundwater cleanup goals compared to using the results of an actual site-specific risk assessment. AFIERA contracted with Mitretek Systems MS for this assessment. MS evaluated the relationships between chemical-specific toxicity values and MCLs for both carcinogens and noncarcinogens. In general, they reached two overall conclusions first, MCLs are not an acceptable surrogate for site-specific baseline assessments for setting site-specific cleanup goals and for prioritizing site cleanups second, chemicals that have been detected at AF installations are regulated less stringently by MCLs than chemicals that have not been detected at AF installations.
- Civil Engineering
- Water Pollution and Control