Water Quality in DENNYSVILLE, ME (04628)
EPA violation data for public water systems serving ZIP code 04628.
249
Total Violations
24
Health-Based
225
Monitoring / Reporting
249
Resolved
What does this mean?
249 of 249 violations have been resolved. 24 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 225 are monitoring or reporting violations (missed testing deadlines or late paperwork — not necessarily a water quality issue). Not all violations mean your water is unsafe. The EPA requires reporting even for minor administrative issues.
Violations Detail (249 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| Nitrate | Monitoring | N/A | N/A | Mar 31, 2025 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Nitrate | Monitoring | N/A | N/A | Mar 31, 2025 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Nitrate | Monitoring | N/A | N/A | Mar 31, 2025 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Nitrate | Monitoring | N/A | N/A | Mar 31, 2025 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Nov 30, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Nov 30, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Nov 30, 2024 | Resolved | N/A |
| Nitrate | Monitoring | N/A | N/A | Sep 30, 2024 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Nitrate | Monitoring | N/A | N/A | Sep 30, 2024 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Nitrate | Monitoring | N/A | N/A | Sep 30, 2024 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Nitrate | Monitoring | N/A | N/A | Sep 30, 2024 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Nitrate | Monitoring | N/A | N/A | Jun 30, 2024 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Nitrate | Monitoring | N/A | N/A | Jun 30, 2024 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Nitrate | Monitoring | N/A | N/A | Jun 30, 2024 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Nitrate | Monitoring | N/A | N/A | Jun 30, 2024 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Aug 31, 2023 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Aug 31, 2023 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Aug 31, 2023 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Aug 31, 2023 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Aug 15, 2023 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Aug 15, 2023 | Resolved | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Jul 31, 2023 | Resolved | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Jul 31, 2023 | Resolved | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Jul 31, 2023 | Resolved | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Jul 31, 2023 | Resolved | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Jul 31, 2023 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Apr 11, 2023 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Apr 11, 2023 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Feb 25, 2023 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Feb 25, 2023 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| E. COLI | Monitoring | 0 | N/A | Nov 30, 2022 | Resolved | Severe gastrointestinal illness; may be fatal in vulnerable populations |
| E. COLI | Monitoring | 0 | N/A | Nov 30, 2022 | Resolved | Severe gastrointestinal illness; may be fatal in vulnerable populations |
| E. COLI | Monitoring | 0 | N/A | Nov 30, 2022 | Resolved | Severe gastrointestinal illness; may be fatal in vulnerable populations |
| E. COLI | Monitoring | 0 | N/A | Nov 30, 2022 | Resolved | Severe gastrointestinal illness; may be fatal in vulnerable populations |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Nov 10, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Nov 10, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Nov 10, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Nov 10, 2022 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Nov 5, 2022 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Nov 5, 2022 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Oct 22, 2022 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Oct 22, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Sep 30, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Sep 30, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Sep 30, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Sep 30, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Sep 30, 2022 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Sep 9, 2022 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Sep 9, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Aug 10, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Aug 10, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Aug 10, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Aug 10, 2022 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Jul 17, 2022 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Jul 17, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jun 30, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jun 30, 2022 | Resolved | N/A |
| Nitrate | Monitoring | N/A | N/A | Jun 30, 2022 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Nitrate | Monitoring | N/A | N/A | Jun 30, 2022 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jun 30, 2022 | Resolved | N/A |
| Nitrate | Monitoring | N/A | N/A | Jun 30, 2022 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jun 30, 2022 | Resolved | N/A |
| Nitrate | Monitoring | N/A | N/A | Jun 30, 2022 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Public Notice | Monitoring | N/A | N/A | Jun 4, 2022 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Jun 4, 2022 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Jun 4, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Apr 30, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Apr 30, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Apr 30, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Apr 30, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Apr 30, 2022 | Resolved | N/A |
| Nitrate | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Nitrate | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Nitrate | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Nitrate | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Nitrate | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Public Notice | Monitoring | N/A | N/A | Mar 5, 2022 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Mar 5, 2022 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Mar 5, 2022 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Mar 5, 2022 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Feb 25, 2022 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Feb 25, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jan 31, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jan 31, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jan 31, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jan 31, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jan 31, 2022 | Resolved | N/A |
| Nitrate | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Nitrate | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Nitrate | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Nitrate | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Nitrate | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| DICHLOROMETHANE | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Tetrachloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Liver problems; increased risk of cancer |
| Ethylbenzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Ethylbenzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Trichloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Liver problems; increased risk of cancer |
| Trichloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Liver problems; increased risk of cancer |
| Trichloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Liver problems; increased risk of cancer |
| Trichloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Liver problems; increased risk of cancer |
| Carbon tetrachloride | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Liver problems; increased risk of cancer |
| Carbon tetrachloride | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Liver problems; increased risk of cancer |
| Carbon tetrachloride | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Liver problems; increased risk of cancer |
| Carbon tetrachloride | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Liver problems; increased risk of cancer |
| Benzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Anemia; decrease in blood platelets; increased risk of cancer |
| Benzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Anemia; decrease in blood platelets; increased risk of cancer |
| Benzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Anemia; decrease in blood platelets; increased risk of cancer |
| Benzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Anemia; decrease in blood platelets; increased risk of cancer |
| DICHLOROMETHANE | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Ethylbenzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| DICHLOROMETHANE | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| DICHLOROMETHANE | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,2,4-Trichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Ethylbenzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,2,4-Trichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,2,4-Trichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| cis-1,2-Dichloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| cis-1,2-Dichloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| cis-1,2-Dichloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| cis-1,2-Dichloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Xylenes, Total | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Xylenes, Total | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Xylenes, Total | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Xylenes, Total | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| o-Dichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| o-Dichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| o-Dichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| o-Dichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,1-Dichloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,1-Dichloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,1-Dichloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,1-Dichloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| trans-1,2-Dichloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| trans-1,2-Dichloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| trans-1,2-Dichloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| trans-1,2-Dichloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,2-Dichloroethane | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,2-Dichloroethane | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,2-Dichloroethane | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,2-Dichloroethane | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,1,1-Trichloroethane | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,1,1-Trichloroethane | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,1,1-Trichloroethane | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,1,1-Trichloroethane | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,2-Dichloropropane | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,2-Dichloropropane | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,2-Dichloropropane | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,2-Dichloropropane | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| CHLOROBENZENE | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| CHLOROBENZENE | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| CHLOROBENZENE | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| CHLOROBENZENE | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Styrene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Styrene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Styrene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Styrene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Toluene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Tetrachloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Liver problems; increased risk of cancer |
| Tetrachloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Liver problems; increased risk of cancer |
| Tetrachloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Liver problems; increased risk of cancer |
| Vinyl chloride | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Increased risk of cancer |
| Vinyl chloride | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Increased risk of cancer |
| Vinyl chloride | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Increased risk of cancer |
| Vinyl chloride | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Increased risk of cancer |
| 1,1,2-Trichloroethane | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,1,2-Trichloroethane | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,1,2-Trichloroethane | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,1,2-Trichloroethane | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| p-Dichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| p-Dichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| p-Dichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| p-Dichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Toluene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Toluene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Toluene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,2,4-Trichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Oct 31, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Oct 31, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Oct 31, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Oct 31, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Oct 31, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Oct 31, 2021 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Oct 3, 2021 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Oct 3, 2021 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Oct 3, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Sep 24, 2021 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Sep 24, 2021 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Sep 24, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Aug 31, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Aug 31, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Aug 31, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Aug 31, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Aug 31, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jul 31, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jul 31, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jul 31, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jul 31, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jul 31, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Health-Based | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Jun 10, 2021 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Jun 10, 2021 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Jun 10, 2021 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Jun 10, 2021 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Jun 10, 2021 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Jun 10, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | May 31, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | May 31, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | May 31, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | May 31, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | May 31, 2021 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | May 5, 2021 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | May 5, 2021 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | May 5, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Apr 30, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Apr 30, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Apr 30, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Apr 30, 2021 | Resolved | N/A |
| Nitrate | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Nitrate | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Nitrate | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Nitrate | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Nitrate | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Feb 28, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Feb 28, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Feb 28, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Feb 28, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Feb 28, 2021 | Resolved | N/A |
Lead & Copper Levels
Violation Timeline
2025(4)
Nitrate
03
Nitrate
03
Nitrate
03
Nitrate
03
2024(11)
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Nitrate
03
Nitrate
03
Nitrate
03
Nitrate
03
Nitrate
03
Nitrate
03
Nitrate
03
Nitrate
03
2023(19)
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Public Notice
75
Public Notice
75
Revised Total Coliform Rule
1A
Revised Total Coliform Rule
1A
Revised Total Coliform Rule
1A
Revised Total Coliform Rule
1A
Revised Total Coliform Rule
1A
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
2022(65)
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Combined Radium (-226 and -228)
03
Combined Radium (-226 and -228)
03
Combined Radium (-226 and -228)
03
Combined Radium (-226 and -228)
03
E. COLI
34
E. COLI
34
E. COLI
34
E. COLI
34
Revised Total Coliform Rule
2B
Revised Total Coliform Rule
2B
Revised Total Coliform Rule
2B
Revised Total Coliform Rule
2B
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Revised Total Coliform Rule
1A
Revised Total Coliform Rule
1A
Revised Total Coliform Rule
1A
Revised Total Coliform Rule
1A
Revised Total Coliform Rule
1A
Public Notice
75
Public Notice
75
Revised Total Coliform Rule
2A
Revised Total Coliform Rule
2A
Revised Total Coliform Rule
2A
Revised Total Coliform Rule
2A
Public Notice
75
Public Notice
75
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Nitrate
03
Nitrate
03
Revised Total Coliform Rule
3A
Nitrate
03
Revised Total Coliform Rule
3A
Nitrate
03
Public Notice
75
Public Notice
75
Public Notice
75
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Nitrate
03
Nitrate
03
Nitrate
03
Nitrate
03
Nitrate
03
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
2021(150)
Nitrate
03
Nitrate
03
Nitrate
03
Nitrate
03
Nitrate
03
DICHLOROMETHANE
03
Tetrachloroethylene
03
Ethylbenzene
03
Ethylbenzene
03
Trichloroethylene
03
Trichloroethylene
03
Trichloroethylene
03
Trichloroethylene
03
Carbon tetrachloride
03
Carbon tetrachloride
03
Carbon tetrachloride
03
Carbon tetrachloride
03
Benzene
03
Benzene
03
Benzene
03
Benzene
03
DICHLOROMETHANE
03
Ethylbenzene
03
DICHLOROMETHANE
03
DICHLOROMETHANE
03
1,2,4-Trichlorobenzene
03
Ethylbenzene
03
1,2,4-Trichlorobenzene
03
1,2,4-Trichlorobenzene
03
cis-1,2-Dichloroethylene
03
cis-1,2-Dichloroethylene
03
cis-1,2-Dichloroethylene
03
cis-1,2-Dichloroethylene
03
Xylenes, Total
03
Xylenes, Total
03
Xylenes, Total
03
Xylenes, Total
03
o-Dichlorobenzene
03
o-Dichlorobenzene
03
o-Dichlorobenzene
03
o-Dichlorobenzene
03
1,1-Dichloroethylene
03
1,1-Dichloroethylene
03
1,1-Dichloroethylene
03
1,1-Dichloroethylene
03
trans-1,2-Dichloroethylene
03
trans-1,2-Dichloroethylene
03
trans-1,2-Dichloroethylene
03
trans-1,2-Dichloroethylene
03
1,2-Dichloroethane
03
1,2-Dichloroethane
03
1,2-Dichloroethane
03
1,2-Dichloroethane
03
1,1,1-Trichloroethane
03
1,1,1-Trichloroethane
03
1,1,1-Trichloroethane
03
1,1,1-Trichloroethane
03
1,2-Dichloropropane
03
1,2-Dichloropropane
03
1,2-Dichloropropane
03
1,2-Dichloropropane
03
CHLOROBENZENE
03
CHLOROBENZENE
03
CHLOROBENZENE
03
CHLOROBENZENE
03
Styrene
03
Styrene
03
Styrene
03
Styrene
03
Toluene
03
Tetrachloroethylene
03
Tetrachloroethylene
03
Tetrachloroethylene
03
Vinyl chloride
03
Vinyl chloride
03
Vinyl chloride
03
Vinyl chloride
03
1,1,2-Trichloroethane
03
1,1,2-Trichloroethane
03
1,1,2-Trichloroethane
03
1,1,2-Trichloroethane
03
p-Dichlorobenzene
03
p-Dichlorobenzene
03
p-Dichlorobenzene
03
p-Dichlorobenzene
03
Toluene
03
Toluene
03
Toluene
03
1,2,4-Trichlorobenzene
03
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Public Notice
75
Public Notice
75
Public Notice
75
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Public Notice
75
Public Notice
75
Public Notice
75
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
1A
Revised Total Coliform Rule
1A
Revised Total Coliform Rule
1A
Revised Total Coliform Rule
1A
Revised Total Coliform Rule
1A
Revised Total Coliform Rule
1A
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Public Notice
75
Public Notice
75
Public Notice
75
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Nitrate
03
Nitrate
03
Nitrate
03
Nitrate
03
Nitrate
03
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
How Does This Compare?
DENNYSVILLE (04628) has 249 recorded violations, including 24 health-based. All violations have been resolved, which is a positive sign for current water quality. Consider testing your tap water independently for added peace of mind.
Recommended Water Filters
Based on the contaminants detected in your area, these filter types may help improve your water quality.
Reverse Osmosis System
One of the few filtration methods effective at removing nitrates and nitrites. Essential for households with infants.
Targets:Nitrate, Nitrite, Dissolved Solids
Look for:NSF/ANSI 58 certified
UV Water Purifier
Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.
Targets:E. coli, Coliform, Giardia, Cryptosporidium
Look for:NSF/ANSI 55 (Class A) certified
Always look for filters certified by NSF International for the specific contaminants you want to remove.