06-27-2022 BPU RPT 02 - Laserfiche WebLink

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RIVERSIDE PUBLIC UTILITIES Board Memorandum BOARD OF PUBLIC UTILITIES DATE: JUNE 27, 2022 SUBJECT: 2022 PUBLIC WATER SYSTEM REPORT ON PUBLIC HEALTH GOALS ISSUE: Accept the 2022 Public Water System Report on Public Health Goals as required under California Health and Safety Code Section 116470(c). RECOMMENDATIONS: That the Board of Public Utilities: 1. Conduct a public hearing to receive public input related to the 2022 Public Water System Report on Public Health Goals; and 2. Accept the 2022 Public Water System Report on Public Health Goals as required under California Health and Safety Code Section 116470 (c). BACKGROUND: The State Water Resources Control Board Division of Drinking Water (DDW) uses public health goals (PHG) to develop health-based drinking water regulatory limits known as Maximum Contaminant Levels (MCLs). MCLs are developed to protect public health while considering applicable treatment technology, cost of treatment, and analytical capability. The MCL is the highest level of a contaminant allowed in drinking water that provides protection from increased health risk. The MCL is an enforceable level that all public water systems must meet. PHGs are not enforceable levels. California Health and Safety Code section 116470 (b) requires that every three years, public water systems serving more than 10,000 service connections that detect one or more contaminants in drinking water that exceed the applicable public health goal, shall prepare a brief written report in plain language that does all of the following: (1) Identifies each contaminant detected in drinking water that exceeds the applicable public health goal. (2) Discloses the numerical public health risk, determined by the office, associated with the maximum contaminant level for each contaminant identified in paragraph (1) and the