Public water system record
Westborough Water Department
Serves an area of Worcester County, MA that includes Westborough · 21,567 people served
Federal records show 1 health-based violation and 55 monitoring/reporting issues for Westborough Water Department in the last ten years. The most serious issue in this window was a resolved Surface Water Treatment Rule violation.
System profile
Source water
Surface water
ZIP
01581
EPA system ID
MA2328000
- Health-based violations, last 10 years
- 1
- Resolved
- 1
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 55
Key facts
- Westborough Water Department draws water from 10 wells and 1 surface water intake.
- Most recent formal enforcement: compliance order (no penalty) by Massachusetts, February 2024.
- Record on file since 1992, with 10 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 232 unknown out of 5,502 service lines.
Check whether Westborough Water Department serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Nov 1, 2025 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2023 | Resolved |
|
Arsenic
Monitoring and reporting
|
Jul 1, 2023 | Resolved |
|
1,2-Dichloropropane
Monitoring and reporting
|
Apr 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
cis-1,2-Dichloroethylene
Monitoring and reporting
|
Apr 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
trans-1,2-Dichloroethylene
Monitoring and reporting
|
Apr 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
o-Dichlorobenzene
Monitoring and reporting
|
Apr 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
CHLOROBENZENE
Monitoring and reporting
|
Apr 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Vinyl chloride
Monitoring and reporting
|
Apr 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
1,1,1-Trichloroethane
Monitoring and reporting
|
Apr 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Trichloroethylene
Monitoring and reporting
|
Apr 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
1,2-Dichloroethane
Monitoring and reporting
|
Apr 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
1,1-Dichloroethylene
Monitoring and reporting
|
Apr 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Carbon tetrachloride
Monitoring and reporting
|
Apr 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Benzene
Monitoring and reporting
|
Apr 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
1,2,4-Trichlorobenzene
Monitoring and reporting
|
Apr 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
1,1,2-Trichloroethane
Monitoring and reporting
|
Apr 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
DICHLOROMETHANE
Monitoring and reporting
|
Apr 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Xylenes, Total
Monitoring and reporting
|
Apr 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
p-Dichlorobenzene
Monitoring and reporting
|
Apr 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Toluene
Monitoring and reporting
|
Apr 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Tetrachloroethylene
Monitoring and reporting
|
Apr 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Styrene
Monitoring and reporting
|
Apr 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Ethylbenzene
Monitoring and reporting
|
Apr 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Revised Total Coliform Rule
Monitoring violation
|
Feb 1, 2023 | Resolved |
|
Arsenic
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
2,3,7,8-TCDD
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Simazine
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Picloram
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
OXAMYL
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Hexachlorocyclopentadiene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
HEXACHLOROBENZENE
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Glyphosate
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Endothall
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Diquat
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Dinoseb
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Di(2-ethylhexyl) phthalate
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Di(2-ethylhexyl) adipate
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Dalapon
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Benzo(a)pyrene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
1,2-DIBROMO-3-CHLOROPROPANE
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Total Polychlorinated Biphenyls (PCB)
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
BHC-GAMMA
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Methoxychlor
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
2,4,5-TP
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Toxaphene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Pentachlorophenol
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Heptachlor
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Heptachlor epoxide
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
ETHYLENE DIBROMIDE
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Endrin
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
2,4-D
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Chlordane
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Carbofuran
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Atrazine
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
LASSO
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
Full record since 1992
EPA's records for Westborough Water Department go back to 1992. Before October 19, 2016 they list 10 health-based violations (7 resolved, 3 archived by EPA without a recorded fix) and 11 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 4 | 0 |
| 2000s | 2 | 6 |
| 2010 to October 18, 2016 | 4 | 5 |
| 2020s | 1 | 55 |
Most recent health-based violation before October 19, 2016: Total Coliform, began February 2016, Resolved.
Show all 10 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Feb 1, 2016 | Resolved |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Aug 1, 2013 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 2013 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 2013 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Mar 1, 2008 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 2000 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Apr 1, 1998 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 1994 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 1992 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jan 1, 1992 | Resolved |
Enforcement actions
Massachusetts regulators took 10 formal enforcement actions against Westborough Water Department between 1998 and 2024. The most recent was a compliance order (no penalty) in February 2024.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Feb 29, 2024 | Massachusetts | Compliance order (no penalty) | 24 violations: Revised Total Coliform Rule, Arsenic, Benzene, Carbon tetrachloride, 1,1-Dichloroethylene |
| Jun 28, 2023 | Massachusetts | Compliance order (no penalty) | 31 violations: Picloram, Simazine, 2,3,7,8-TCDD, LASSO, Carbofuran |
| Dec 5, 2012 | Massachusetts | Compliance order (no penalty) | 1 violation: Total Coliform |
| Sep 5, 2012 | Massachusetts | Compliance order (no penalty) | 2 violations: Radium-228, Radium-226 |
| Nov 12, 2010 | Massachusetts | Compliance order (no penalty) | 1 violation: Arsenic |
| Jun 9, 2008 | Massachusetts | Compliance order (no penalty) | 2 violations (1 health-based): Surface Water Treatment Rule |
| Dec 12, 2006 | Massachusetts | Compliance order (no penalty) | 3 violations: Radium-228, Arsenic, Radium-226 |
| May 15, 2006 | Massachusetts | Compliance order (no penalty) | 1 violation: Arsenic |
| Feb 5, 2001 | Massachusetts | Compliance order (no penalty) | 1 violation (1 health-based): Total Coliform |
| Jun 1, 1998 | Massachusetts | Compliance order (no penalty) | 1 violation (1 health-based): Total Coliform |
What the violations mean
Surface Water Treatment Rule
1 incidentThe system did not complete a treatment step or action that the Surface Water Treatment Rule requires (a treatment technique violation).
The utility had to notify customers about this violation.
Where the water comes from
Westborough Water Department draws water from 10 wells and 1 surface water intake. It also has an emergency connection to Southborough DPW Water Division (MWRA).
Emergency or part-time connections to
- Southborough DPW Water Division (MWRA) Southborough, MA
Annual water quality report
Westborough Water Department must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Systems serving 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Massachusetts.
Certified drinking water labs by state EPA guidance for private wells