Is there PFAS in Norwich Public Utilities water?

Some. At least one sample reached an EPA limit, but the average at every sampling point stayed below it.

Norwich Public Utilities is a public water system drawing on surface water, based in Norwich, Connecticut, serving about 36,163 people, including Lebanon, North Franklin, Bozrah, Jewett City, Montville, Norwich. Under EPA's Fifth Unregulated Contaminant Monitoring Rule it was tested for 29 PFAS and lithium 10 times across 1 sampling point between May 2023 and Mar 2024.

Every PFAS detected

Not detected: ADONA, PFHpA, PFNA, PFDA, PFDoA, PFHxA, PFUnA, PFTA, 9Cl-PF3ONS, 4:2 FTS, HFPO-DA, PFBA, 6:2 FTS, 8:2 FTS, PFMBA, PFEESA, NFDHA, PFPeS, PFHpS, 11Cl-PF3OUdS, PFMPA, PFTrDA, NMeFOSAA, NEtFOSAA.

Lithium, tested in the same program: not detected.

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 Connecticut

• Wallingford Water Department 3 PFAS detected
• Torrington Water Company none detected
• Ctwc - Shoreline Region-guilford System 7 PFAS detected
• Norwalk First Taxing District above an EPA limit
• Middletown Water Department none detected
• South Norwalk Electric & Water none detected

All 63 tested systems in Connecticut

ZIP codes served

06249 06254 06334 06351 06353 06360 06365 06380 06382 06389

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 Norwich Public Utilities water: EPA UCMR 5 results." Data: U.S. EPA Fifth Unregulated Contaminant Monitoring Rule, final release August 2026, PWSID CT1040011. https://wellandtap.com/pfas/connecticut/norwich-public-utilities/

About this data

Source: U.S. EPA, UCMR 5 occurrence data, final release August 2026 (PWSID CT1040011). Population: EPA SDWIS. Averages count results below the reporting level as zero, the same convention EPA uses for running annual averages. Full method.