What EPA records show for Middleborough Water Supply
EPA system ID MA4182000 · serves Middleborough, MA · about 15,350 people (EPA records)
Here's what EPA has on file for this water system: its testing for newer contaminants like PFAS (UCMR 5), lead testing and violations. It's not a test of your tap, and there's no Water Score here.
Public EPA test results
Middleborough Water Supply (EPA MA4182000)
What EPA records show for Middleborough Water Supply, as of October 14, 2026
We found no health-standard violations in EPA's records for this system (MA4182000) since July 1, 2021, as of October 14, 2026.
Lead: 9 in 10 homes tested came in at or below 3 ppb, at or below EPA's 15 ppb action level (latest EPA result for a testing period that ran on or after July 1, 2021: Jan 1, 2025–Dec 31, 2025). This is one number for the whole water system, from homes the utility tested. It isn't a result for your home.
EPA's UCMR 5 testing looked for 30 contaminants here and found 8.
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 Middleborough Water Supply use chloramine?
We didn't find chloramine in Middleborough Water Supply'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 8.
PFOA (a PFAS): found in 9 of 20 samples, average 3.3 ppt, highest 11 ppt (EPA UCMR 5 testing, Dec 2024–Jun 2025)
PFHxA (a PFAS): found in 7 of 20 samples, average 1.8 ppt, highest 10 ppt (EPA UCMR 5 testing, Dec 2024–Jun 2025)
PFPeA (a PFAS): found in 5 of 20 samples, average 1.6 ppt, highest 13 ppt (EPA UCMR 5 testing, Dec 2024–Jun 2025)
PFOS (a PFAS): found in 6 of 20 samples, average 1.4 ppt, highest 5 ppt (EPA UCMR 5 testing, Dec 2024–Jun 2025)
PFBS (a PFAS): found in 5 of 20 samples, average 1 ppt, highest 5 ppt (EPA UCMR 5 testing, Dec 2024–Jun 2025)
PFHpA (a PFAS): found in 2 of 20 samples, average 0.40 ppt, highest 4 ppt (EPA UCMR 5 testing, Dec 2024–Jun 2025)
PFBA (a PFAS): found in 1 of 20 samples, average 0.30 ppt, highest 5 ppt (EPA UCMR 5 testing, Dec 2024–Jun 2025)
PFHxS (a PFAS): found in 1 of 20 samples, average 0.20 ppt, highest 3 ppt (EPA UCMR 5 testing, Dec 2024–Jun 2025)
Lead: 9 in 10 homes tested came in at or below 3 ppb, at or below EPA's 15 ppb action level (latest EPA result for a testing period that ran on or after July 1, 2021: Jan 1, 2025–Dec 31, 2025). This is one number for the whole water system, from homes the utility tested. It isn't a result for your home.
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.
We ship three things: the combo (Home Base $2,049, XL $2,149), carbon-only ($1,179), and the HW800 tankless RO ($569). Equipment only, shipped to your door; you or your plumber installs. Not available in Wisconsin yet. Pay by card or Affirm at checkout.
