Role of Phosphate Inhibitors in Mitigating Lead and Copper Corrosion

Abstract

Advances the scientific understanding of when, how, and why phosphate-based corrosion inhibitors work in potable waters. Answers critical questions of inhibitor solution chemistry on lead and copper solubility using laboratory tests. Uses pipe rig experiments to compare the effects of dosing orthophosphate and polyphosphate on lead and copper by-product release. Also optimizes inhibitor doses in water when beneficial effects of phosphate inhibitors are observed. Published in 2001.

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Role of Phosphate Inhibitors in Mitigating Lead and Copper Corrosion

Report

#90823

06/01/2001

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Role of Phosphate Inhibitors in Mitigating Lead and Copper Corrosion

Abstract

Resources

Role of Phosphate Inhibitors in Mitigating Lead and Copper Corrosion

Distribution System Water Quality Changes Following Corrosion Control Strategies

Lead and Copper Corrosion Control in New Construction

Lead Service Line Identification Techniques

Guidance for Complying with the Lead and Copper Rule Revisions for Water Systems with No- to Low Prevalence of Lead Service Lines (LSL, LSLs)

Identifying Service Line Materials without Excavation: Distinguishing LSLs from Non-LSLs

Guidance for Using Pipe Rigs to Inform Lead and Copper Corrosion Control Treatment Decisions

Your Water System is Not Isolated - Interdependencies are Important