Superfund Record of Decision (EPA Region 1): Saco Municipal Landfill, Saco, Maine, September 2000;Final rept

摘要

This Record of Decision (ROD) sets forth the final remedy at the Saco Municipal Landfill (SML) Site, which involves monitored natural attenuation of the groundwater contamination down-gradient of Landfill Areas 3 and 4$ institutional controls, and long-term groundwater, surface water, and sediment monitoring and evaluation. Based on site evaluations and information collected to date, it is anticipated that monitored natural attenuation will reduce concentrations of arsenic, manganese, and benzene in groundwater down-gradient of Landfill Areas 3 and 4 to their respective remediation goals within 60 to 100 years. The selected remedy is a comprehensive approach for the Site that addresses all current and potential future risks caused by groundwater contamination. Measures to address the source of contamination were implemented as part of a NTCRA.