Murrieta, CA Water Quality (ZIP 92563)

EPA-tested PFAS, lead, and regulated contaminants for ZIP 92563 in Murrieta, CA, served by EASTERN MUNICIPAL WD.

Quick Answers

Is ZIP 92563 tap water safe to drink? Water for ZIP 92563 shows high PFAS contamination. EPA testing found a peak of 120 ppt, above the EPA's 4 ppt enforceable limit. A reverse osmosis or certified PFAS filter is strongly recommended.

What filter should I use in 92563? Match the filter to the data: reverse osmosis handles PFAS, lead, and arsenic together; NSF-53 pitchers cover the taps you drink from. A basic Brita pitcher will not remove PFAS.

ZIP 92563 Water Quality Summary

EPA testing has detected PFAS "forever chemicals" in the water systems serving ZIP 92563 (Murrieta, CA). Monitoring found a peak of 120 ppt across 3 systems, averaging 15.09 ppt over 5 detected compounds.

Contamination Level: HIGH – High contamination – multiple PFAS compounds detected at levels significantly above EPA safety thresholds.

Top Detected Compounds in ZIP 92563

  • PFHXS: 120 ppt (exceeds the EPA 10 ppt limit)
  • PFOS: 82 ppt (exceeds the EPA 4 ppt limit)
  • PFOA: 53 ppt (exceeds the EPA 4 ppt limit)
  • PFHPA: 22 ppt (exceeds the EPA 10 ppt limit)
  • PFBA: 0.01 ppt

Lead in ZIP 92563 Water

EPA Lead and Copper Rule testing recorded 13 lead samples for the systems serving 92563, with a 90th-percentile high of 0.0028 mg/L (within the EPA 0.015 mg/L action level). There is no safe level of lead for children; homes built before 1986 should use a certified NSF/ANSI 53 lead filter.

About the Data

These figures come from EPA UCMR5 (2023-2025) plus Lead and Copper Rule and SDWIS records for the public water system serving ZIP 92563. UCMR5 is the most comprehensive national drinking water survey in US history.

Beyond water: other exposures in Murrieta, CA

Drinking water is one exposure route. These are the other federal datasets that cover ZIP 92563 and Riverside County, CA.

Radon risk in Riverside County, CA

The EPA places Riverside County, CA in Zone 2 - a moderate-risk category, with a predicted average indoor radon level between 2 and 4 pCi/L. Zone maps predict the radon potential of an area from geology and existing indoor readings - they do not describe any individual home. Radon is the leading cause of lung cancer among people who have never smoked, and the only way to know your own level is a test kit.

Lead paint risk in Riverside County, CA

Census figures show 31% of homes in Riverside County, CA were built before 1980, and 4% before 1950. Lead-based paint was banned for residential use in 1978, so older housing stock is the strongest available proxy for lead-paint exposure. This is a statistic about the county's housing, not a test of any particular property - if your home predates 1980, a lead swab test is the way to check.

Air quality in Riverside County, CA

Modelled annual fine-particle pollution (PM2.5) for Riverside County, CA averages 9.3 µg/m³, above the EPA's annual PM2.5 standard of 9 µg/m³. PM2.5 is the pollution fraction small enough to reach deep into the lungs. These are CDC modelled estimates for the county as a whole, not a reading taken at this ZIP code.