Full Description

Many water providers are taking steps now to protect source water quality to ensure futureregulatory compliance. In California, the Central Valley Regional Water Quality Control Boardis conducting the technical studies needed to determine if a comprehensive drinking waterpolicy is needed for its surface waters (the Sacramento-San Joaquin Delta and its tributaries). Indeveloping this policy, both the ability to protect source water from constituents of concern andthe ability of drinking water treatment plants to remove constituents of concern is being assessed.The latter is being addressed in a drinking water treatment evaluation.As part of that evaluation, a team of industry experts hypothesized thedrinking water regulatory horizon in the next twenty years. "Plausible" and "outer boundary"regulatory scenarios were developed for key constituents of concern, including disinfectionbyproduct precursors, disinfection byproducts, dissolved minerals, algal toxins, and pathogens.The hypothetical regulatory scenarios are being used in the evaluation to determine the waterquality conditions that will trigger the need for treatment changes (treatment triggers) forexisting water treatment plants. Includes 48 references, tables.

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Edition: Vol. - No. Published: 11/01/2009 Number of Pages: 15File Size: 1 file , 780 KB