California · find a service

Find water quality reports in California

Find water quality reports.

In California, 2 city governments and 1 county department publish 3 official links for this service. Reviewed requirements cover availability notices (4). 3 counties have a page for it below.

Before you start · 2 things to check

Match the utility name on your bill before choosing a payment link. Service areas may cover only part of a county.
Payment options and any processing charges are set by the utility. CountyWiki does not collect account details or payments.

1 guide with reviewed service links · Los Angeles

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Highlighted counties have a reviewed service guide matching this selection. An agency may serve only a city or part of a county.

California58 counties

County directory Reviewed service guides available

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Map source

U.S. Census boundaries via U.S. Atlas · 2017 edition, simplified for display.

City government · Los Angeles

Pasadena Water and Power — customer accounts

PWP water/electric customer accounts, including the Pasadena city navigation context; provider boundaries and every address are not established here.

PWP water quality reports and Water Quality Lab contactOfficial instructions

Find annual drinking-water reports for PWP water customers. The official 2026 report covers January–December 2025; previous-year reports are listed separately.

Service area: PWP customers in the Pasadena city navigation context; confirm PWP supplies the affected service. This does not establish every Pasadena address or countywide eligibility. Area details & sources

Publication label and tested reporting period remain distinct

Water Quality Report 2026 (Reporting period Jan-Dec 2025)

Official information checked October 26, 2026 · Details & sources

Source checked October 26, 2026

Pasadena Water and Power · Pasadena Water and Power water quality reports (opens in a new tab)

Official utility topic page; exact report listing, reporting instruction or purpose-labelled contact

Water Quality Report 2026 (Reporting period Jan-Dec 2025)

Saved evidence: ffa37eb0ea45c378 · Agent source review

Full guide, contact details & sources →

Find water quality reports in California

Pasadena Water and Power — customer accounts

Find water quality reports by county