Public water system record
Hamilton Water Dept
Serves an area of Essex County, MA · 7,377 people served
Federal records show 1 health-based violation and no monitoring/reporting issues for Hamilton Water Dept in the last ten years. The most serious issue in this window was a Haloacetic Acids (HAA5) violation that EPA lists as archived, not resolved.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 0
- Unresolved
- 0
- Archived by EPA
- 1
- Any acute record
- No
- Monitoring issues, last 10 years
- 0
Key facts
- Hamilton Water Dept draws water from 7 wells (2 of them for emergency, seasonal or other part-time use).
- Most recent formal enforcement: compliance order (no penalty) by Massachusetts, March 2019.
- Record on file since 1995, with 10 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 1,709 unknown out of 2,781 service lines.
Check whether Hamilton Water Dept 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 |
|---|---|---|---|---|
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
|
220 | Jan 1, 2019 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
Full record since 1995
EPA's records for Hamilton Water Dept go back to 1995. Before October 19, 2016 they list 10 health-based violations (3 resolved, 7 archived by EPA without a recorded fix) and 55 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 7 | 0 |
| 2000s | 2 | 55 |
| 2010 to October 18, 2016 | 1 | 0 |
| October 19, 2016 to 2019 | 1 | 0 |
Most recent health-based violation before October 19, 2016: Total Coliform, began November 2011, Resolved.
Show all 10 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 2011 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 2009 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 2000 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 1999 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Feb 1, 1999 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 1998 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Feb 1, 1997 | Archived |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Sep 1, 1996 | Archived |
|
Lead and Copper Rule
Treatment technique failure
|
Jan 1, 1996 | Resolved |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Oct 1, 1995 | Archived |
Enforcement actions
Massachusetts regulators took 7 formal enforcement actions against Hamilton Water Dept between 1999 and 2019. The most recent was a compliance order (no penalty) in March 2019.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Mar 22, 2019 | Massachusetts | Compliance order (no penalty) | 1 violation (1 health-based): Haloacetic Acids (HAA5) |
| Nov 29, 2011 | Massachusetts | Compliance order (no penalty) | 1 violation (1 health-based): Total Coliform |
| Aug 3, 2009 | Massachusetts | Compliance order (no penalty) | 1 violation (1 health-based): Total Coliform |
| Oct 26, 2007 | Massachusetts | Compliance order (no penalty) | 34 violations: Glyphosate, HEXACHLOROBENZENE, Hexachlorocyclopentadiene, Simazine, Carbofuran |
| Jun 13, 2000 | Massachusetts | Compliance order (no penalty) | 21 violations: 1,2,4-Trichlorobenzene, DICHLOROMETHANE, Vinyl chloride, 1,1-Dichloroethylene, trans-1,2-Dichloroethylene |
| Jan 24, 2000 | Massachusetts | Compliance order (no penalty) | 1 violation (1 health-based): Lead and Copper Rule |
| Dec 20, 1999 | Massachusetts | Compliance order (no penalty) | 1 violation (1 health-based): Total Coliform |
What the violations mean
Haloacetic Acids (HAA5)
1 incidentHaloacetic acid byproducts exceeded the federal limit
Long-term exposure to HAAs may increase cancer risk
Where the water comes from
Hamilton Water Dept draws water from 7 wells (2 of them for emergency, seasonal or other part-time use).
Annual water quality report
Hamilton Water Dept 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.
Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.
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