No PFAS were detected in any of the 34 samples EPA's program collected.
Eastern Municipal WD is a public water system drawing on surface water, based in Perris, California, serving about 666,581 people, including March Air Reserve Base, Hemet, Homeland, Moreno Valley, Murrieta, Nuevo. Under EPA's Fifth Unregulated Contaminant Monitoring Rule it was tested for 29 PFAS and lithium 34 times across 14 sampling points between Jul 2023 and Aug 2024.
None of the 29 PFAS were found at or above EPA's minimum reporting levels (2 to 20 ppt depending on the compound).
Not detected: 6:2 FTS, PFUnA, 11Cl-PF3OUdS, 9Cl-PF3ONS, NFDHA, PFHpS, PFHxA, PFBA, PFPeS, 4:2 FTS, 8:2 FTS, PFMPA, PFPeA, PFMBA, PFEESA, HFPO-DA, PFBS, ADONA, PFDoA, PFTA, PFTrDA, NMeFOSAA, PFHpA, PFHxS, PFNA, PFOS, PFOA, PFDA, NEtFOSAA.
Lithium, tested in the same program: highest 39 ppb, detected in 9 of 36 samples. EPA's health-based screening level is 10 ppb.
In April 2024 EPA set enforceable limits of 4 ppt for PFOA and PFOS, 10 ppt each for PFHxS, PFNA and GenX, and a hazard index of 1 for mixtures. Utilities were given until 2029 to comply. In May 2026 EPA proposed keeping only the PFOA and PFOS limits and moving that deadline to 2031. Until that proposal is final, the 2024 limits stand.
Compliance is judged on a running annual average at each entry point, so we show the average at this system's worst sampling point next to its single highest result. UCMR 5 results do not by themselves put a utility in or out of compliance.
No PFAS action is needed on these results. If your water tastes or smells of chlorine, a whole-house city water filter is the usual fix.
All 707 tested systems in California
92518 92543 92544 92545 92548 92551 92553 92555 92557 92562 92563 92567 92570 92571 92572 92582 92583 92584 92585 92586 92587 92592 92596
As reported by the utility to EPA. Neighbouring ZIPs are often split between systems; your water bill names yours.
Well & Tap. "PFAS in Eastern Municipal WD water: EPA UCMR 5 results." Data: U.S. EPA Fifth Unregulated Contaminant Monitoring Rule, final release August 2026, PWSID CA3310009. https://wellandtap.com/pfas/california/eastern-municipal-wd/
Source: U.S. EPA, UCMR 5 occurrence data, final release August 2026 (PWSID CA3310009). Population: EPA SDWIS. Averages count results below the reporting level as zero, the same convention EPA uses for running annual averages. Full method.
