Is there PFAS in Widefield WSD water?
Yes. EPA's final UCMR 5 results show Widefield WSD averaged 11.9 ppt of PFOS at its worst sampling point, 3.0 times the EPA limit of 4 ppt.
Widefield WSD
Serves 27,640 people · 24 PFOA samples from 9 sampling points · May 2023 to Feb 2024
Average above an EPA limit
PFOA Perfluorooctanoic acid
10.2 ppt avg · max 10.5
PFOS Perfluorooctanesulfonic acid
11.9 ppt avg · max 15.8
PFHxS Perfluorohexanesulfonic acid
27.8 ppt avg · max 28.4
Hazard index GenX, PFBS, PFNA, PFHxS combined
2.8 avg · max 2.9
Also detected, no federal limit: PFHxA, PFPeA, PFBA, PFBS, PFPeS.
Widefield WSD is a public water system drawing on surface water, based in Colorado Springs, Colorado, serving about 27,640 people, including Fountain, Colorado Springs. Under EPA's Fifth Unregulated Contaminant Monitoring Rule it was tested for 29 PFAS and lithium 24 times across 9 sampling points between May 2023 and Feb 2024.
Every PFAS detected
Not detected: 4:2 FTS, ADONA, HFPO-DA, 9Cl-PF3ONS, 6:2 FTS, 8:2 FTS, PFMPA, PFMBA, PFEESA, 11Cl-PF3OUdS, PFHpS, NFDHA, NEtFOSAA, PFHpA, PFNA, PFTA, NMeFOSAA, PFUnA, PFTrDA, PFDA, PFDoA.
Lithium, tested in the same program: highest 78.6 ppb, detected in 22 of 24 samples. EPA's health-based screening level is 10 ppb.
What the EPA limits mean here
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.
What you can do at home
Two routes work for PFAS. For drinking and cooking water only, a reverse osmosis system certified to NSF/ANSI 58 with a PFOA/PFOS reduction claim is the cheapest proven option. To treat every tap and shower, a whole-house carbon system with enough contact time works, but check that the maker has PFAS test data, not just a marketing claim. See the best filters for PFAS and how PFAS removal works.
Other systems in Colorado
All 165 tested systems in Colorado
ZIP codes served
80817 80911 80925
As reported by the utility to EPA. Neighbouring ZIPs are often split between systems; your water bill names yours.
Cite this page
Well & Tap. "PFAS in Widefield WSD water: EPA UCMR 5 results." Data: U.S. EPA Fifth Unregulated Contaminant Monitoring Rule, final release August 2026, PWSID CO0121900. https://wellandtap.com/pfas/colorado/widefield-wsd/
About this data
Source: U.S. EPA, UCMR 5 occurrence data, final release August 2026 (PWSID CO0121900). Population: EPA SDWIS. Averages count results below the reporting level as zero, the same convention EPA uses for running annual averages. Full method.
