DENNIS WATER DISTRICT
Massachusetts - Community Water System - PWSID: MA4075000
System Information
| PWSID | MA4075000 |
| System Name | DENNIS WATER DISTRICT |
| 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 | SOUTH DENNIS |
| ZIP Code | 02660 |
| Address | P.O. BOX 2000 |
| Organization | DENNIS WATER DISTRICT |
| Phone | 5083983351 |
Population & Service
| Population Served | 65,000 |
| Service Connections | 14,576 |
Drinking Water Violations (44)
This water system has 44 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2014 | Dec 31, 2016 | MR | No | No | - | 0.0002 mg/L | - | Archived | Dec 31, 2016 | - | |
| Jan 1, 2014 | Dec 31, 2016 | MR | No | No | - | 0.0004 mg/L | - | Archived | Dec 31, 2016 | - | |
| Jan 1, 2014 | Dec 31, 2016 | MR | No | No | - | 0.001 mg/L | - | Archived | Dec 31, 2016 | - | |
| Jan 1, 2014 | Dec 31, 2016 | MR | No | No | - | 0.003 mg/L | - | Archived | Dec 31, 2016 | - | |
| Jan 1, 2014 | Dec 31, 2016 | MR | No | No | - | 0.05 mg/L | - | Archived | Dec 31, 2016 | - | |
| Jan 1, 2014 | Dec 31, 2016 | MR | No | No | - | 0.04 mg/L | - | Archived | Dec 31, 2016 | - | |
| Jan 1, 2014 | Dec 31, 2016 | MR | No | No | - | 0.0002 mg/L | - | Archived | Dec 31, 2016 | - | |
| Jan 1, 2014 | Dec 31, 2016 | MR | No | No | - | 0.0002 mg/L | - | Archived | Dec 31, 2016 | - | |
| Jan 1, 2014 | Dec 31, 2016 | MR | No | No | - | 0.2 mg/L | - | Archived | Dec 31, 2016 | - | |
| Jan 1, 2014 | Dec 31, 2016 | MR | No | No | - | 0.006 mg/L | - | Archived | Dec 31, 2016 | - | |
| Jan 1, 2014 | Dec 31, 2016 | MR | No | No | - | 0.0002 mg/L | - | Archived | Dec 31, 2016 | - | |
| Jan 1, 2014 | Dec 31, 2016 | MR | No | No | - | 0.4 mg/L | - | Archived | Dec 31, 2016 | - | |
| Jan 1, 2014 | Dec 31, 2016 | MR | No | No | - | 0.003 mg/L | - | Archived | Dec 31, 2016 | - | |
| Jan 1, 2014 | Dec 31, 2016 | MR | No | No | - | 0.02 mg/L | - | Archived | Dec 31, 2016 | - | |
| Jan 1, 2014 | Dec 31, 2016 | MR | No | No | - | 0.04 mg/L | - | Archived | Dec 31, 2016 | - | |
| Jan 1, 2014 | Dec 31, 2016 | MR | No | No | - | 0.5 mg/L | - | Archived | Dec 31, 2016 | - | |
| Jan 1, 2014 | Dec 31, 2016 | MR | No | No | - | 0.002 mg/L | - | Archived | Dec 31, 2016 | - | |
| Jan 1, 2014 | Dec 31, 2016 | MR | No | No | - | 0.0005 mg/L | - | Archived | Dec 31, 2016 | - | |
| Jan 1, 2014 | Dec 31, 2016 | MR | No | No | - | 0.004 mg/L | - | Archived | Dec 31, 2016 | - | |
| Jan 1, 2014 | Dec 31, 2016 | MR | No | No | - | 0.1 mg/L | - | Archived | Dec 31, 2016 | - | |
| Jan 1, 2014 | Dec 31, 2016 | MR | No | No | - | 0.00005 mg/L | - | Archived | Dec 31, 2016 | - | |
| Jan 1, 2014 | Dec 31, 2016 | MR | No | No | - | 0.007 mg/L | - | Archived | Dec 31, 2016 | - | |
| Jan 1, 2014 | Dec 31, 2016 | MR | No | No | - | 0.7 mg/L | - | Archived | Dec 31, 2016 | - | |
| Jan 1, 2014 | Dec 31, 2016 | MR | No | No | - | 0.001 mg/L | - | Archived | Dec 31, 2016 | - | |
| Jan 1, 2014 | Dec 31, 2016 | MR | No | No | - | 0.05 mg/L | - | Archived | Dec 31, 2016 | - | |
| Jan 1, 2014 | Dec 31, 2016 | MR | No | No | - | 0.2 mg/L | - | Archived | Dec 31, 2016 | - | |
| Jan 1, 2014 | Dec 31, 2016 | MR | No | No | - | 0.00000003 mg/L | - | Archived | Dec 31, 2016 | - | |
| Jan 1, 2014 | Dec 31, 2016 | MR | No | No | - | - | - | Archived | Dec 31, 2016 | - | |
| Jan 1, 2014 | Dec 31, 2016 | MR | No | No | - | 0.07 mg/L | - | Archived | Dec 31, 2016 | - | |
| Jan 1, 2014 | Dec 31, 2016 | MR | No | No | - | 0.002 mg/L | - | Archived | Dec 31, 2016 | - | |
| Oct 1, 2008 | Dec 31, 2008 | MR | No | No | - | 0.060 mg/L | - | Archived | Dec 31, 2008 | - | |
| Oct 1, 2008 | Dec 31, 2008 | MR | No | No | - | 0.080 mg/L | - | Archived | Dec 31, 2008 | - | |
| Dec 1, 2006 | Dec 31, 2006 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2006 | - | |
| Dec 1, 2006 | Dec 31, 2006 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2006 | - | |
| Nov 1, 2005 | Nov 30, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 2005 | - | |
| Nov 1, 2005 | Nov 30, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 2005 | - | |
| Nov 1, 2003 | Nov 30, 2003 | MCL | Yes | No | - | 5% of samples | - | Archived | Nov 30, 2003 | - | |
| Jun 1, 2000 | Jun 30, 2000 | MCL | Yes | No | - | 5% of samples | - | Archived | Jun 30, 2000 | - | |
| Jun 1, 2000 | Jun 30, 2000 | MCL | Yes | No | - | 5% of samples | - | Archived | Jun 30, 2000 | - | |
| Jan 1, 1996 | Mar 31, 1996 | MR | No | Yes | - | 10 mg/L | - | Archived | Mar 31, 1996 | - | |
| Jan 1, 1996 | Mar 31, 1996 | MR | No | Yes | - | 1 mg/L | - | Archived | Mar 31, 1996 | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - |
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.