Bolton Country Manor
What EPA’s and Massachusetts’s records show in this utility’s water: nitrate, arsenic and other regulated chemicals; lead and copper; and violations since 2016, with the certification that handles each result.
- Serves
- 60 people
- Connections
- 1
- Water source
- Groundwater
- Based in
- Bolton, MA
- County
- Worcester
- Owner
- Federal government
The ZIP code it serves
The short answer
Nothing in EPA’s and Massachusetts’s records for this utility is above a health goal. That covers nitrate, arsenic and other regulated chemicals, plus lead and copper, not everything. 1 health-based violation since 2016.
What was found
Copper: EPA’s file records a utility’s copper only when it exceeds the action level. The last here was 3.3 ppm, for the period ending June 30, 2007. None since is on file, so it is not counted as a current finding.
Fluoride, total trihalomethanes (TTHM), chromium (total), nitrate, arsenic and haloacetic acids (HAA5): Massachusetts’s own results, samples taken from April 8, 2020 to April 6, 2026, with EPA’s 2012 to 2019 file for earlier years.
Below EPA’s limits4
Fluoride
Forms or is added in treatment
0.22ppm
Highest yearly average, 2020 to 2023
Averaged by year, the highest was 0.22 ppm, in 2023, below EPA’s legal limit of 4.0 ppm. Its highest single sample was 0.4 ppm. That was also the latest year on file. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 0.2 ppm, in 2014.
What handles it
- NSF/ANSI 58 look for “Fluoride Reduction”
- NSF/ANSI 53 look for “Fluoride”
Total trihalomethanes (TTHM)
Forms or is added in treatment
3.0ppb
Highest yearly average, 2023 to 2025
2025, one sample: 2.2 ppb
Averaged by year, the highest was 3.0 ppb, in 2024, below EPA’s legal limit of 80 ppb. In 2025, the latest year on file, its one sample was 2.2 ppb.
What handles it
- NSF/ANSI 53 look for “Trihalomethanes (TTHM) Reduction”
- NSF/ANSI 58 look for “Trihalomethanes (TTHM) Reduction”
Chromium (total)
Comes from the source
1.3ppb
Highest yearly average, 2020 to 2023
2023 average: 0.63 ppb
Averaged by year, the highest was 1.3 ppb, in 2020, below EPA’s legal limit of 100 ppb. Its highest single sample was 2.7 ppb. In 2023, the latest year on file, its three samples averaged 0.63 ppb.
What handles it
- NSF/ANSI 58 look for “Chromium (Hexavalent) Reduction”
- NSF/ANSI 53 look for “Chromium Reduction”
Nitrate
Comes from the source
0.057ppm
Highest sample; found in 1 of 20
2026: not found
The highest sample, in 2023, was 0.057 ppm, below EPA’s legal limit of 10 ppm. In 2026, the latest year on file, it wasn’t found in any of its two samples.
What handles it
- NSF/ANSI 58 look for “Nitrate/Nitrite Reduction”
- NSF/ANSI 53 look for “Nitrate/Nitrite (30 ppm challenge)”
3 compounds tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.
- Arsenic
- Haloacetic acids (HAA5)
- Lead
Violations since 2016
| Contaminant or rule | Type | Period | Measured | Status |
|---|---|---|---|---|
| Revised Total Coliform Rule | E. coli was confirmed in the water system.EPA: Maximum Contaminant Level Violation, E. coli (RTCR) | July 1, 2018 to July 31, 2018 | — | Resolved |
| Health-based violations only. Resolved and archived mean the utility returned to compliance or the state closed the record. 3 monitoring or reporting violations not shown. | ||||
What this report can’t tell you
Everything else. Fluoride, total trihalomethanes (TTHM), chromium (total), nitrate, arsenic and haloacetic acids (HAA5) results here are Massachusetts’s own from 2020 on, with EPA’s national file for 2012 to 2019. Bolton Country Manor’s own annual report, which it must send you every year, has 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; Massachusetts’s results run from April 8, 2020 to April 6, 2026.
Testing your own tap
The 3 labs Massachusetts certifies closest to the area Bolton Country Manor serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Eurofins Ayer
Ayer, MA · about 9 miles
Certified for bacteria, nitrate, minerals and other inorganics
Pace Analytical LLC-Westborough
Westborough, MA · about 12 miles
Certified for bacteria, nitrate, minerals and other inorganics
Eurofins-Worcester
Worcester, MA · about 13 miles
Certified for bacteria
Sources
- EPA UCMR 5 occurrence data, file of Oct. 15, 2026
- EPA SDWA bulk download (SDWIS federal data), 2026 Q3
- Massachusetts Department of Environmental Protection, Drinking Water Program, results from Jan. 2, 2020 to Oct. 5, 2026, read Oct. 8, 2026
- EPA Six-Year Review 4 compliance monitoring data, 2012 to 2019, file of Feb. 5, 2024
- 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 MA2034027. Rebuilt from EPA data on Oct. 18, 2026.
What to do next
- Nothing here is above a health goalIn EPA’s and Massachusetts’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 reportBolton Country Manor must send you a water quality report every year. It covers contaminants this page does not show.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