06-24-2019 BPU RPT 04 - Laserfiche WebLink

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RIVERSIDE PUBLIC UTILITIES Board Memorandum P U B L I C U T I L I T I E S BOARD OF PUBLIC UTILITIES DATE: JUNE 24, 2019 ITEM NO: 4 SUBJECT: PUBLIC HEARING — 2019 PUBLIC WATER SYSTEM REPORT ON PUBLIC HEALTH GOALS (CALIFORNIA HEALTH AND SAFETY CODE SECTION 116470 (c)) ISSUE: Conduct a public hearing to review the 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: Conduct a public hearing to review the public water system report on Public Health Goals as required under California Health and Safety Code Section 116470(c); and 2. Accept and respond to any comments about the report. BACKGROUND: California Health and Safety Code section 116470 (b) requires that every three (3) 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 numerical public health risk determined by the office associated with the public health goal for that contaminant. (3) Identifies the category of risk to public health, including, but not limited to, carcinogenic, mutagenic, teratogenic, and acute toxicity, associated with exposure to the contaminant in drinking water, and includes a brief plainly worded description of these terms. (4) Describes the best available technology, if any is then available on a commercial basis, to remove the contaminant or reduce the concentration of the contaminant. The public water system may, solely at its own discretion, briefly describe actions that have been taken on its own, or by other entities, to prevent the introduction of the contaminant into drinking water supplies. (5) Estimates the aggregate cost and the cost per customer of utilizing the technology described in paragraph (4), if any, to reduce the concentration of that contaminant in drinking water to a level at or below the public health goal.