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REASONS FOR CORROSION CONTROL OTHER THAN THE LEAD AND COPPER RULE
Citation:
Schock*, M R. REASONS FOR CORROSION CONTROL OTHER THAN THE LEAD AND COPPER RULE. JOURNAL OF THE NEW ENGLAND WATER WORKS ASSOCIATION 113(2):128-150, (1999).
Description:
A corrosion control program designed to accommodate all distribution system materials, as well as lead and copper, will produce significant benefits that are not always related to corrosion in an obvious way. Essential components of a good corrosion control program are the selection of proper pH, the balancing of hardness and alkalinity to protect iron and cement-based materials, sufficient buffering to assure constant pH throughout the system, and the proper consistent dosage of inhibitor chemical. Additional benefits include cost savings from reduced pipe rehabilitation, maintenance, pumping costs, and disinfectant use; better microbial control; reduced DBP formation from lower disinfection dosages; reduced metal levels in wastewater discharge and sludge; and reduction of aesthetic problems.