MERRIMAC WATER DEPARTMENT
Massachusetts — Community Water System — PWSID: MA3180000
System Information
| PWSID | MA3180000 |
| System Name | MERRIMAC WATER DEPARTMENT |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 01 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 26, 1979 |
| Last Reported | Mar 17, 2026 |
Location & Contact
| State | Massachusetts |
| City | MERRIMAC |
| ZIP Code | 01860 |
| Address | 4 SCHOOL ST 2ND FL |
| Organization | MERRIMAC WATER DEPARTMENT |
| Phone | 9783468407 |
Population & Service
| Population Served | 7,193 |
| Service Connections | 1,980 |
Drinking Water Violations (276)
This water system has 276 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jun 1, 2021 | — | MR | No | No | — | TT | — | Addressed | — | — | |
| Jan 1, 2019 | Mar 31, 2019 | MR | No | No | — | 0.04 mg/L | — | Archived | Mar 31, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MR | No | No | — | 0.4 mg/L | — | Archived | Mar 31, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MR | No | No | — | 0.007 mg/L | — | Archived | Mar 31, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MR | No | No | — | 0.0002 mg/L | — | Archived | Mar 31, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MR | No | No | — | 0.002 mg/L | — | Archived | Mar 31, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MR | No | No | — | 0.004 mg/L | — | Archived | Mar 31, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MR | No | No | — | 0.006 mg/L | — | Archived | Mar 31, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MR | No | No | — | 0.05 mg/L | — | Archived | Mar 31, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MR | No | No | — | 0.1 mg/L | — | Archived | Mar 31, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MR | No | No | — | 0.0002 mg/L | — | Archived | Mar 31, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MR | No | No | — | 0.00000003 mg/L | — | Archived | Mar 31, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MR | No | No | — | 0.001 mg/L | — | Archived | Mar 31, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MR | No | No | — | 0.003 mg/L | — | Archived | Mar 31, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MR | No | No | — | 0.5 mg/L | — | Archived | Mar 31, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MR | No | No | — | 0.2 mg/L | — | Archived | Mar 31, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MR | No | No | — | 0.7 mg/L | — | Archived | Mar 31, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MR | No | No | — | 0.001 mg/L | — | Archived | Mar 31, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MR | No | No | — | 0.0004 mg/L | — | Archived | Mar 31, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MR | No | No | — | 0.0002 mg/L | — | Archived | Mar 31, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MR | No | No | — | 0.002 mg/L | — | Archived | Mar 31, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MR | No | No | — | 0.02 mg/L | — | Archived | Mar 31, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MR | No | No | — | 0.04 mg/L | — | Archived | Mar 31, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MR | No | No | — | 0.003 mg/L | — | Archived | Mar 31, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MR | No | No | — | 0.05 mg/L | — | Archived | Mar 31, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MR | No | No | — | 0.2 mg/L | — | Archived | Mar 31, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MR | No | No | — | 0.0002 mg/L | — | Archived | Mar 31, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MR | No | No | — | 0.00005 mg/L | — | Archived | Mar 31, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MR | No | No | — | 0.0005 mg/L | — | Archived | Mar 31, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MR | No | No | — | 0.07 mg/L | — | Archived | Mar 31, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MR | No | No | — | — | — | Archived | Mar 31, 2019 | — | |
| Jun 1, 2015 | — | MR | No | No | — | TT | — | Resolved | Jul 21, 2016 | — | |
| Jun 1, 2015 | — | MR | No | No | — | TT | — | Resolved | Jul 21, 2016 | — | |
| Apr 1, 2014 | Jun 30, 2014 | MR | No | No | — | 1 mg/L | — | Archived | Jun 30, 2014 | — | |
| Jan 1, 2013 | Mar 31, 2013 | MR | No | No | — | 0.003 mg/L | — | Resolved | Mar 31, 2013 | — | |
| Jan 1, 2013 | Mar 31, 2013 | MR | No | No | — | 0.003 mg/L | — | Resolved | Mar 31, 2013 | — | |
| Jan 1, 2013 | Mar 31, 2013 | MR | No | No | — | — | — | Resolved | Mar 31, 2013 | — | |
| Jan 1, 2013 | Mar 31, 2013 | MR | No | No | — | 0.0002 mg/L | — | Resolved | Mar 31, 2013 | — | |
| Jan 1, 2013 | Mar 31, 2013 | MR | No | No | — | 0.07 mg/L | — | Resolved | Mar 31, 2013 | — | |
| Jan 1, 2013 | Mar 31, 2013 | MR | No | No | — | 0.05 mg/L | — | Resolved | Mar 31, 2013 | — | |
| Jan 1, 2013 | Mar 31, 2013 | MR | No | No | — | 0.04 mg/L | — | Resolved | Mar 31, 2013 | — | |
| Jan 1, 2013 | Mar 31, 2013 | MR | No | No | — | 0.0002 mg/L | — | Resolved | Mar 31, 2013 | — | |
| Jan 1, 2013 | Mar 31, 2013 | MR | No | No | — | 0.02 mg/L | — | Resolved | Mar 31, 2013 | — | |
| Jan 1, 2013 | Mar 31, 2013 | MR | No | No | — | 0.04 mg/L | — | Resolved | Mar 31, 2013 | — | |
| Jan 1, 2013 | Mar 31, 2013 | MR | No | No | — | 0.001 mg/L | — | Resolved | Mar 31, 2013 | — | |
| Jan 1, 2013 | Mar 31, 2013 | MR | No | No | — | 0.004 mg/L | — | Resolved | Mar 31, 2013 | — | |
| Jan 1, 2013 | Mar 31, 2013 | MR | No | No | — | 0.002 mg/L | — | Resolved | Mar 31, 2013 | — | |
| Jan 1, 2013 | Mar 31, 2013 | MR | No | No | — | 0.002 mg/L | — | Resolved | Mar 31, 2013 | — | |
| Jan 1, 2013 | Mar 31, 2013 | MR | No | No | — | 0.003 mg/L | — | Resolved | Mar 31, 2013 | — | |
| Jan 1, 2013 | Mar 31, 2013 | MR | No | No | — | 0.5 mg/L | — | Resolved | Mar 31, 2013 | — |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.