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AWWA ACE93192
- Corrosion Control Studies After You Exceed the Action Levels
- Conference Proceeding by American Water Works Association, 01/01/1993
- Publisher: AWWA
$12.00$24.00
Due to low alkalinity and poor buffering, the City of Richmond (Virginia) finished water varies widely in pH as it passes through the distribution system. Prior to the Lead and Copper Rule, the city was applying a zinc orthophosphate, but that was not enough to prevent the city of exceeding lead action levels under the regulation. To avoid having to replace lead service lines, the city increased the chemical addition, installed test coupons throughout the distribution system, and both conducted a desk top evaluation of corrosion control alternatives and a pipe loop study. This brief paper outlines each action taken and its results.
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