Desktop Report for Corrosion Control Treatment Thule Air Force Base, Greenland

摘要

On 7 Jun 91, US EPA promulgated National Primary Drinking Water Regulations(NPDWRs) for lead and copper (referred to here as the Lead and Copper Rule, LCR). The LCR requires public water systems (PWSs) to either demonstrate that existing lead and copper levels in consumers' tap water are below acceptable levels (the action level, AL) or that an optimal corrosion control treatment technique has been implemented to reduce lead and copper levels to below the AL. Thule AB, Greenland exceeded the action level for lead and for copper. Thule AB must submit recommendations for optimal corrosion control to Space Command. Recommended corrosion control treatment techniques will be based on a desktop evaluation. This report reviews the insallation's lead and copper sampling history, source water quality, water treatment processes, results of water quality parameter sampling, and information concerning the water distribution system. Using EPA protocols spelled out in the LCR Guidance Manuals, a desktop treatment evaluation is presented.