Tri Town Water Board
What EPA’s records show in this utility’s water: violations since 2016, with the certification that handles each result.
- Serves
- 856,000 people
- Connections
- 2
- Water source
- Surface water
- Based in
- Braintree, MA
- County
- Norfolk
- Owner
- Local government
The ZIP code it serves
The short answer
Nothing in EPA’s records for this utility is above a health goal. That covers , not everything. No health-based violations on file since 2016.
What was found
None of the contaminants in the records below were found at or above the reporting levels.
Violations since 2016
No health-based violations on file with EPA since 2016.
What this report can’t tell you
Newer results, and everything else. Nitrate, arsenic, fluoride, chromium, uranium and disinfection byproduct results here come from EPA’s national compliance file, which ends in 2019. Tri Town Water Board’s own annual report, which it must send you every year, has newer results and the contaminants this page does not show.
Your own plumbing. Lead results are the 90th percentile across homes the utility samples. Your home’s service line, solder and fixtures decide yours. A certified lab test is the only way to know.
What it means for your health. This page reports what the records show and EPA’s limits and goals; it is not medical advice. If you are worried about a health effect, talk to a doctor or your local health department.
Anything after the latest data. SDWIS data is from 2026 Q3; UCMR 5 didn’t sample this utility.
Testing your own tap
The 3 labs Massachusetts certifies closest to the area Tri Town Water Board serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
G and L Labs Inc.
Quincy, MA · about 4 miles
Certified for bacteria
Matrix Sciences International Inc.
Canton, MA · about 7 miles
Certified for bacteria
Mass DPH Environmental Chemistry Lab
Jamaica Plain, MA · about 9 miles
Certified for lead and copper, metals
Sources
- EPA UCMR 5 occurrence data, file of Oct. 15, 2026
- EPA SDWA bulk download (SDWIS federal data), 2026 Q3
- Certified labs: MassDEP Online Searchable Laboratory Certification Listing, potable water, read Oct. 16, 2026; distances from the Census 2020 ZIP code tabulation area gazetteer
- Limits and goals: each contaminant’s page, with its EPA source.
- How this page is built: methodology.
PWSID MA4040002. Rebuilt from EPA data on Oct. 18, 2026.
What to do next
- Nothing here is above a health goalIn EPA’s records for this utility. They don’t cover everything, which is why the next step matters.Every contaminant TapBuff tracks
- Get the utility’s own reportTri Town Water Board must send you a water quality report every year. It has newer results than EPA’s national file, which ends in 2019.How to read it
- Test your own tap for leadYour service line, solder and fixtures decide the lead at your faucet, not the utility’s average.Lead in your water: what to do
- Decide if you want a filter at allA filter for taste or chlorine is a preference, not a need. The standards say what each kind can do.NSF/ANSI standards, decoded