Effect of Increasing Hardness on Fresh Water Acute Water Quality Standards

Notes

A fax from Water Resources Consulting LLC to Rick Poulin dated February 13, 2002, presenting tables showing the effect of increasing water hardness on fresh water acute water quality standards for copper and zinc, referencing WAC 173.201A.040. The document includes calculated values for hardness levels ranging from 19 to 110 mg/l and corresponding water quality concentration limits.

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