Yuma, AZ Water Quality (ZIP 85365)

Quick Answers

Is ZIP 85365 tap water safe to drink? The system serving 85365 is not reported as having detected PFAS in the latest EPA UCMR5 cycle, but review the lead and regulated-contaminant results below and consider a certified filter if your home predates 1986.

What filter should I use in 85365? 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 85365 Water Quality Summary

Recent EPA UCMR5 monitoring shows no PFAS detections for the system serving 85365 in Yuma, AZ. Lead and regulated-contaminant results below still warrant a look.

Contamination Level: NONE – No PFAS detected in recent testing for the systems serving this ZIP code.

Lead in ZIP 85365 Water

EPA Lead and Copper Rule testing recorded 74 lead samples for the systems serving 85365, with a 90th-percentile high of 0.025 mg/L (above 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.

EPA Violations Affecting ZIP 85365

The water systems serving 85365 have 170 health-based EPA Safe Drinking Water Act violations on record, including Chromium, 5200, 2920, 1008, Combined Uranium. A health-based violation means a contaminant exceeded its federal limit or required treatment was not applied.

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 85365. UCMR5 is the most comprehensive national drinking water survey in US history.

Beyond water: other exposures in Yuma, AZ

Drinking water is one exposure route. These are the other federal datasets that cover ZIP 85365 and Yuma County, AZ.

Radon risk in Yuma County, AZ

The EPA places Yuma County, AZ 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 Yuma County, AZ

Census figures show 27% of homes in Yuma County, AZ were built before 1980, and 3% 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 Yuma County, AZ

Modelled annual fine-particle pollution (PM2.5) for Yuma County, AZ averages 7.9 µg/m³, within 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.