PFAS in tap water, Clayton, New Jersey
Borough of Clayton had PFAS-4 above our 0.5 ng/L benchmark at the latest sample: 7.3 ng/L. PFOA or PFOS was above the 4 ng/L federal MCL in at least one sample.
Clayton is served by 1 community water system · 8,179 people served
Water systems serving Clayton
| Water system | People served | PFAS-4 at the latest sample | Entry points | Latest sample |
|---|---|---|---|---|
| Borough of Clayton | 8,179 | 7.3 ng/L above the 2029 federal MCL | 2 | March 25, 2024 |
The systems report their own service areas to EPA. Check your water bill or your utility's Consumer Confidence Report.
Census place "Clayton borough", matched from the city rows the system reports to SDWIS.
County
ZIP codes in Clayton
Census ZIP code tabulation areas with at least 5 % of their land inside this city or town.
How to read these numbers
We compare PFAS-4 (PFOA + PFOS + PFNA + PFHxS) with this site's 0.5 ng/L benchmark, the same line as on the European pages. UCMR 5 reporting limits are 3 to 4 ng/L. So any quantified PFAS-4 compound is above the benchmark, and a clean result reads "below the 3 to 4 ng/L reporting limit", never zero. The US legal limit is the 4 ng/L federal MCL for PFOA and PFOS, which systems must meet from April 26, 2029 ("above the 2029 federal MCL").
EPA: "UCMR 5 results do not indicate compliance or noncompliance with the PFAS drinking water standards". Samples are taken where water enters the distribution system, not at your tap. A system may have changed sources or added treatment since. Source: U.S. Environmental Protection Agency (EPA), Office of Water, PFAS National Primary Drinking Water Regulation (NPDWR). Regulation details retrieved September 19, 2026. Every system page tracks the 2029 compliance date and the proposed rescission of the PFHxS, PFNA, HFPO-DA and Hazard Index limits.
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.