EPA MA4218000 · serves Norton, MA · about 19,161 people (EPA SDWIS)
This report shows EPA's federal records for this water system: UCMR 5 testing, lead testing and violations. It isn't a test of the water at your tap, and it has no Water Score.
Public EPA test results
Norton Water Department (EPA MA4218000)
What EPA records show for Norton Water Department, as of October 14, 2026
9 health-based violations since July 1, 2021 in EPA records (EPA SDWIS).
Lead, 90th percentile: 1.2 ppb at the latest result in EPA records for a monitoring period that ran on or after July 1, 2021, at or below EPA's 15 ppb action level (EPA SDWIS, monitoring period Jan 1, 2026–Jun 30, 2026). The 90th percentile is a system-wide measure from homes sampled under EPA's lead rule; it isn't a result for your home.
EPA's UCMR 5 testing looked for 30 contaminants here and found 7.
Source: EPA records (SDWIS, UCMR 5). SDWIS: data as of Oct 14, 2026. EPA UCMR 5 data, samples through June 2026.
Your water bill names your utility.
Does Norton Water Department use chloramine?
We didn't find chloramine in Norton Water Department's EPA treatment records. That's not a complete list; your utility's annual water quality report says which disinfectant it uses.
Reported results in EPA records (data as of Oct 14–15, 2026)
EPA's UCMR 5 testing looked for 30 contaminants here and found 7.
PFOA (a PFAS): found in 2 of 6 samples, average 2.9 ppt, highest 8.8 ppt (EPA UCMR 5 testing, Aug 2023–Feb 2024)
Norton Water Department (Bristol County, MA): what EPA records show
PFHxS (a PFAS): found in 3 of 6 samples, average 2.5 ppt, highest 6.4 ppt (EPA UCMR 5 testing, Aug 2023–Feb 2024)
PFBS (a PFAS): found in 2 of 6 samples, average 1.6 ppt, highest 4.9 ppt (EPA UCMR 5 testing, Aug 2023–Feb 2024)
PFHxA (a PFAS): found in 2 of 6 samples, average 1.3 ppt, highest 4.1 ppt (EPA UCMR 5 testing, Aug 2023–Feb 2024)
PFPeA (a PFAS): found in 2 of 6 samples, average 1.3 ppt, highest 4 ppt (EPA UCMR 5 testing, Aug 2023–Feb 2024)
PFHpA (a PFAS): found in 2 of 6 samples, average 1.1 ppt, highest 3.3 ppt (EPA UCMR 5 testing, Aug 2023–Feb 2024)
PFOS (a PFAS): found in 1 of 6 samples, average 0.70 ppt, highest 4 ppt (EPA UCMR 5 testing, Aug 2023–Feb 2024)
Lead, 90th percentile: 1.2 ppb at the latest result in EPA records for a monitoring period that ran on or after July 1, 2021, at or below EPA's 15 ppb action level (EPA SDWIS, monitoring period Jan 1, 2026–Jun 30, 2026). The 90th percentile is a system-wide measure from homes sampled under EPA's lead rule; it isn't a result for your home.
Health-based violation: Stage 2 Disinfectants and Disinfection Byproducts Rule, TTHM, from Oct 2024, with no return-to-compliance action in EPA records (EPA SDWIS)
Health-based violation: Stage 2 Disinfectants and Disinfection Byproducts Rule, TTHM, from Jul 2024, with no return-to-compliance action in EPA records (EPA SDWIS)
Health-based violation: Stage 2 Disinfectants and Disinfection Byproducts Rule, TTHM, from Apr 2024, with no return-to-compliance action in EPA records (EPA SDWIS)
Health-based violation: Stage 2 Disinfectants and Disinfection Byproducts Rule, TTHM, from Jan 2024, with no return-to-compliance action in EPA records (EPA SDWIS)
Health-based violation: Stage 2 Disinfectants and Disinfection Byproducts Rule, TTHM, from Jan 2023, with no return-to-compliance action in EPA records (EPA SDWIS)
Health-based violation: Stage 2 Disinfectants and Disinfection Byproducts Rule, TTHM, from Oct 2022, with no return-to-compliance action in EPA records (EPA SDWIS)
Health-based violation: Stage 2 Disinfectants and Disinfection Byproducts Rule, TTHM, from Jul 2022, with no return-to-compliance action in EPA records (EPA SDWIS)
Health-based violation: Stage 2 Disinfectants and Disinfection Byproducts Rule, TTHM, from Apr 2022, with no return-to-compliance action in EPA records (EPA SDWIS)
Health-based violation: Stage 2 Disinfectants and Disinfection Byproducts Rule, TTHM, from Oct 2021, with no return-to-compliance action in EPA records (EPA SDWIS)
Source: EPA SDWIS (ECHO SDWA bulk download), data as of Oct 14, 2026
Source: EPA UCMR 5 occurrence data, data as of Oct 15, 2026
These are EPA's public records for this water system, shown as of October 14, 2026. If you represent this utility, or think a record here is wrong, tell us: Report an error. If the error is in EPA's own records, your state drinking water program can correct it there, and this page updates at our next data refresh.
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