Transcription of Permeation and Leaching - US EPA
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Permeation and Leaching - US EPA
_____. Office of Water (4601M). Office of Ground Water and Drinking Water Distribution System Issue Paper Permeation and Leaching August 15, 2002. PREPARED FOR: Environmental Protection Agency Office of Ground Water and Drinking Water Standards and Risk Management Division 1200 Pennsylvania Ave., NW. Washington DC 20004. Prepared by: AWWA. With assistance from Economic and Engineering Services, Inc Background and Disclaimer The USEPA is revising the Total Coliform Rule (TCR) and is considering new possible distribution system requirements as part of these revisions. As part of this process, the USEPA is publishing a series of issue papers to present available information on topics relevant to possible TCR revisions. This paper was developed as part of that effort. The objectives of the issue papers are to review the available data, information and research regarding the potential public health risks associated with the distribution system issues, and where relevant identify areas in which additional research may be warranted.
zones are susceptible to contamination by permeation (DWI0441, 1992). 1.2 Metals and Chemical Leaching Leaching is a broad category that includes the dissolution of a variety of metals and chemicals into drinking water. In some instances, it is difficult to differentiate between corrosion and leaching.
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