Water Quality in HARWINTON, CT (06791)
EPA violation data for public water systems serving ZIP code 06791.
513
Total Violations
14
Health-Based
499
Monitoring / Reporting
495
Resolved
What does this mean?
495 of 513 violations have been resolved. 14 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 499 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 (513 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Dec 31, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Dec 31, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Dec 31, 2024 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Oct 17, 2024 | Active | N/A |
| Public Notice | Monitoring | N/A | N/A | Oct 17, 2024 | Active | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Sep 27, 2024 | Active | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Sep 27, 2024 | Active | N/A |
| E. COLI | Monitoring | 0 | N/A | Aug 22, 2024 | Resolved | Severe gastrointestinal illness; may be fatal in vulnerable populations |
| E. COLI | Monitoring | 0 | N/A | Aug 22, 2024 | Resolved | Severe gastrointestinal illness; may be fatal in vulnerable populations |
| E. COLI | Monitoring | 0 | N/A | Aug 22, 2024 | Resolved | Severe gastrointestinal illness; may be fatal in vulnerable populations |
| E. COLI | Monitoring | 0 | N/A | Aug 22, 2024 | Resolved | Severe gastrointestinal illness; may be fatal in vulnerable populations |
| E. COLI | Monitoring | 0 | N/A | Aug 22, 2024 | Resolved | Severe gastrointestinal illness; may be fatal in vulnerable populations |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jun 30, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jun 30, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jun 30, 2024 | Resolved | N/A |
| Groundwater Rule | Health-Based | N/A | N/A | Apr 15, 2024 | Active | N/A |
| Groundwater Rule | Health-Based | N/A | N/A | Apr 15, 2024 | Active | N/A |
| Groundwater Rule | Health-Based | N/A | N/A | Apr 15, 2024 | Active | N/A |
| Groundwater Rule | Health-Based | N/A | N/A | Apr 15, 2024 | Active | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Mar 31, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Mar 31, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Mar 31, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Mar 31, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Mar 31, 2024 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Mar 29, 2024 | Active | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Mar 29, 2024 | Active | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Sep 27, 2023 | Active | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Sep 27, 2023 | Active | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Sep 27, 2023 | Active | N/A |
| Public Notice | Monitoring | N/A | N/A | Aug 6, 2023 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Aug 6, 2023 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Aug 6, 2023 | Resolved | N/A |
| Lead and Copper Rule | Health-Based | N/A | N/A | May 17, 2023 | Active | N/A |
| Lead and Copper Rule | Health-Based | N/A | N/A | May 17, 2023 | Active | N/A |
| Lead and Copper Rule | Health-Based | N/A | N/A | May 17, 2023 | Active | N/A |
| Lead and Copper Rule | Health-Based | N/A | N/A | May 17, 2023 | Active | N/A |
| Lead and Copper Rule | Health-Based | N/A | N/A | May 17, 2023 | Active | N/A |
| Nitrate | Monitoring | N/A | N/A | Dec 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 | Dec 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 | Dec 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 | Dec 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 | Dec 31, 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 | Sep 30, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Sep 30, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Sep 30, 2022 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Jun 30, 2022 | Resolved | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2022 | Resolved | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2022 | Resolved | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2022 | Resolved | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2022 | Resolved | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2022 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Jun 30, 2022 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Jun 30, 2022 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Jun 30, 2022 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Jun 30, 2022 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Jun 30, 2022 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Jun 30, 2022 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Jun 30, 2022 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Jun 30, 2022 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Jun 30, 2022 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Jun 30, 2022 | Resolved | N/A |
| Lead and Copper 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 |
| 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 |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Apr 30, 2022 | Resolved | N/A |
| Methoxychlor | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Methoxychlor | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Methoxychlor | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Methoxychlor | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Methoxychlor | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Methoxychlor | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Methoxychlor | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Toxaphene | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Toxaphene | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Toxaphene | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Toxaphene | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Toxaphene | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Toxaphene | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Toxaphene | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Dalapon | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Dalapon | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Dalapon | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Dalapon | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Dalapon | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Dalapon | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Dalapon | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| OXAMYL | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| OXAMYL | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| OXAMYL | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| OXAMYL | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| OXAMYL | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| OXAMYL | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| OXAMYL | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Simazine | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Simazine | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Simazine | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Simazine | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Simazine | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Simazine | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Simazine | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Picloram | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Picloram | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Picloram | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Picloram | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Picloram | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Picloram | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Picloram | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Dinoseb | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Dinoseb | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Dinoseb | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Dinoseb | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Dinoseb | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Dinoseb | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Dinoseb | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Hexachlorocyclopentadiene | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Hexachlorocyclopentadiene | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Hexachlorocyclopentadiene | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Hexachlorocyclopentadiene | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Hexachlorocyclopentadiene | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Hexachlorocyclopentadiene | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Hexachlorocyclopentadiene | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Aldicarb sulfoxide | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Aldicarb sulfoxide | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Aldicarb sulfoxide | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Aldicarb sulfoxide | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Aldicarb sulfoxide | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Aldicarb sulfoxide | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Aldicarb sulfoxide | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| LASSO | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| LASSO | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| LASSO | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| LASSO | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| LASSO | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| LASSO | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| LASSO | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Heptachlor | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Heptachlor | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Heptachlor | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Heptachlor | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Heptachlor | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Heptachlor | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Heptachlor | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Heptachlor epoxide | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Heptachlor epoxide | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Heptachlor epoxide | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Heptachlor epoxide | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Heptachlor epoxide | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Heptachlor epoxide | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Heptachlor epoxide | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| 1,2-DIBROMO-3-CHLOROPROPANE | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| 1,2-DIBROMO-3-CHLOROPROPANE | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| 1,2-DIBROMO-3-CHLOROPROPANE | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| 1,2-DIBROMO-3-CHLOROPROPANE | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| 1,2-DIBROMO-3-CHLOROPROPANE | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| 1,2-DIBROMO-3-CHLOROPROPANE | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| 1,2-DIBROMO-3-CHLOROPROPANE | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Atrazine | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | Cardiovascular system or reproductive problems |
| Atrazine | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | Cardiovascular system or reproductive problems |
| HEXACHLOROBENZENE | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| HEXACHLOROBENZENE | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Di(2-ethylhexyl) phthalate | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Di(2-ethylhexyl) phthalate | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Di(2-ethylhexyl) phthalate | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Di(2-ethylhexyl) phthalate | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Di(2-ethylhexyl) phthalate | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Endrin | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Endrin | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Endrin | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Endrin | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Endrin | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Endrin | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Endrin | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Pentachlorophenol | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Pentachlorophenol | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Pentachlorophenol | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Pentachlorophenol | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Pentachlorophenol | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Pentachlorophenol | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Pentachlorophenol | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Carbofuran | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Carbofuran | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Carbofuran | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Carbofuran | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Carbofuran | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Carbofuran | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Carbofuran | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Aldicarb sulfone | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Aldicarb sulfone | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Aldicarb sulfone | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| 2,4,5-TP | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| 2,4,5-TP | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| 2,4,5-TP | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| 2,4,5-TP | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| 2,4,5-TP | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| 2,4,5-TP | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| 2,4,5-TP | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Aldicarb sulfone | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Aldicarb sulfone | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Aldicarb sulfone | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Aldicarb sulfone | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Benzo(a)pyrene | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Benzo(a)pyrene | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Benzo(a)pyrene | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Benzo(a)pyrene | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Benzo(a)pyrene | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Benzo(a)pyrene | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Benzo(a)pyrene | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| BHC-GAMMA | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| BHC-GAMMA | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| BHC-GAMMA | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| BHC-GAMMA | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| BHC-GAMMA | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| BHC-GAMMA | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| BHC-GAMMA | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Atrazine | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | Cardiovascular system or reproductive problems |
| Atrazine | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | Cardiovascular system or reproductive problems |
| Atrazine | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | Cardiovascular system or reproductive problems |
| Atrazine | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | Cardiovascular system or reproductive problems |
| Atrazine | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | Cardiovascular system or reproductive problems |
| Di(2-ethylhexyl) phthalate | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Di(2-ethylhexyl) phthalate | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Aldicarb | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Aldicarb | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Aldicarb | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| 2,4-D | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| 2,4-D | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| 2,4-D | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| 2,4-D | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| 2,4-D | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| 2,4-D | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| 2,4-D | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Aldicarb | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Aldicarb | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Aldicarb | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Di(2-ethylhexyl) adipate | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Di(2-ethylhexyl) adipate | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Di(2-ethylhexyl) adipate | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Di(2-ethylhexyl) adipate | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Di(2-ethylhexyl) adipate | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Aldicarb | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Chlordane | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Chlordane | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Chlordane | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Chlordane | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Chlordane | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Chlordane | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Chlordane | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| HEXACHLOROBENZENE | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| HEXACHLOROBENZENE | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| HEXACHLOROBENZENE | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| HEXACHLOROBENZENE | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| HEXACHLOROBENZENE | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| ETHYLENE DIBROMIDE | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| ETHYLENE DIBROMIDE | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| ETHYLENE DIBROMIDE | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| ETHYLENE DIBROMIDE | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| ETHYLENE DIBROMIDE | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| ETHYLENE DIBROMIDE | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| ETHYLENE DIBROMIDE | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Di(2-ethylhexyl) adipate | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Di(2-ethylhexyl) adipate | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Aldicarb | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Aldicarb | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Aldicarb | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| BHC-GAMMA | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| HEXACHLOROBENZENE | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| BHC-GAMMA | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Di(2-ethylhexyl) adipate | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Di(2-ethylhexyl) adipate | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Di(2-ethylhexyl) adipate | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| OXAMYL | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| BHC-GAMMA | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| OXAMYL | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Hexachlorocyclopentadiene | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Hexachlorocyclopentadiene | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Hexachlorocyclopentadiene | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Aldicarb sulfone | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Aldicarb sulfone | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Aldicarb sulfone | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| LASSO | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| LASSO | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| LASSO | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| 2,4,5-TP | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| 2,4,5-TP | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| 2,4,5-TP | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Benzo(a)pyrene | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| HEXACHLOROBENZENE | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| HEXACHLOROBENZENE | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Benzo(a)pyrene | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Benzo(a)pyrene | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| OXAMYL | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Endrin | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Toxaphene | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| ETHYLENE DIBROMIDE | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| ETHYLENE DIBROMIDE | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Chlordane | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Chlordane | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Chlordane | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Toxaphene | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| 2,4-D | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| 2,4-D | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Endrin | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Endrin | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Carbofuran | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Carbofuran | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Carbofuran | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| ETHYLENE DIBROMIDE | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Simazine | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Simazine | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Simazine | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Heptachlor | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Dinoseb | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Dinoseb | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| 1,2-DIBROMO-3-CHLOROPROPANE | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| 1,2-DIBROMO-3-CHLOROPROPANE | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| 1,2-DIBROMO-3-CHLOROPROPANE | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Pentachlorophenol | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Pentachlorophenol | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Pentachlorophenol | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Methoxychlor | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Methoxychlor | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Heptachlor | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Heptachlor | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Atrazine | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | Cardiovascular system or reproductive problems |
| Atrazine | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | Cardiovascular system or reproductive problems |
| Atrazine | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | Cardiovascular system or reproductive problems |
| Methoxychlor | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Dalapon | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Dalapon | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Dalapon | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Aldicarb sulfoxide | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Aldicarb sulfoxide | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Aldicarb sulfoxide | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Di(2-ethylhexyl) phthalate | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Di(2-ethylhexyl) phthalate | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Di(2-ethylhexyl) phthalate | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| 2,4-D | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Toxaphene | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Picloram | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Picloram | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Picloram | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Heptachlor epoxide | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Heptachlor epoxide | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Heptachlor epoxide | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Dinoseb | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Pentachlorophenol | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Pentachlorophenol | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Pentachlorophenol | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Pentachlorophenol | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Pentachlorophenol | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Endrin | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Endrin | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Endrin | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Endrin | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Atrazine | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | Cardiovascular system or reproductive problems |
| Atrazine | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | Cardiovascular system or reproductive problems |
| Atrazine | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | Cardiovascular system or reproductive problems |
| Atrazine | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | Cardiovascular system or reproductive problems |
| Atrazine | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | Cardiovascular system or reproductive problems |
| Endrin | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Toxaphene | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Toxaphene | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Toxaphene | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Toxaphene | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Toxaphene | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| OXAMYL | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| OXAMYL | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| OXAMYL | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| OXAMYL | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| OXAMYL | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Simazine | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Simazine | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Simazine | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Simazine | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Simazine | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Di(2-ethylhexyl) phthalate | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Di(2-ethylhexyl) phthalate | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Di(2-ethylhexyl) phthalate | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Di(2-ethylhexyl) phthalate | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Di(2-ethylhexyl) phthalate | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Picloram | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Picloram | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Picloram | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Picloram | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Picloram | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Dinoseb | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Dinoseb | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Dinoseb | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Dinoseb | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Dinoseb | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Hexachlorocyclopentadiene | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Hexachlorocyclopentadiene | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Hexachlorocyclopentadiene | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Hexachlorocyclopentadiene | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Hexachlorocyclopentadiene | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Aldicarb sulfoxide | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Aldicarb sulfoxide | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Aldicarb sulfoxide | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Aldicarb sulfoxide | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Aldicarb sulfoxide | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Aldicarb sulfone | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Aldicarb sulfone | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Aldicarb sulfone | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Aldicarb sulfone | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Aldicarb sulfone | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Carbofuran | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Carbofuran | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Carbofuran | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Carbofuran | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Carbofuran | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Aldicarb | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Aldicarb | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Aldicarb | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Aldicarb | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Aldicarb | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Heptachlor | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Heptachlor | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Heptachlor | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Heptachlor | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Heptachlor | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| 2,4,5-TP | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| 2,4,5-TP | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| 2,4,5-TP | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| 2,4,5-TP | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| 2,4,5-TP | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| HEXACHLOROBENZENE | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| HEXACHLOROBENZENE | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| HEXACHLOROBENZENE | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| HEXACHLOROBENZENE | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| HEXACHLOROBENZENE | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| LASSO | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Lead and Copper Rule | Health-Based | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| 1,2-DIBROMO-3-CHLOROPROPANE | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| 1,2-DIBROMO-3-CHLOROPROPANE | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| 1,2-DIBROMO-3-CHLOROPROPANE | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| 1,2-DIBROMO-3-CHLOROPROPANE | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Dalapon | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Dalapon | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Dalapon | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| LASSO | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| 2,4-D | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Dalapon | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Dalapon | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| 2,4-D | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| 2,4-D | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| ETHYLENE DIBROMIDE | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Benzo(a)pyrene | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Benzo(a)pyrene | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Benzo(a)pyrene | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Benzo(a)pyrene | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Benzo(a)pyrene | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| ETHYLENE DIBROMIDE | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| ETHYLENE DIBROMIDE | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| ETHYLENE DIBROMIDE | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Heptachlor epoxide | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| ETHYLENE DIBROMIDE | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Chlordane | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Chlordane | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Heptachlor epoxide | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Heptachlor epoxide | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Heptachlor epoxide | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Heptachlor epoxide | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Chlordane | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Chlordane | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Chlordane | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Di(2-ethylhexyl) adipate | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Di(2-ethylhexyl) adipate | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Di(2-ethylhexyl) adipate | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Di(2-ethylhexyl) adipate | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Di(2-ethylhexyl) adipate | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| 2,4-D | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| 2,4-D | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Methoxychlor | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Methoxychlor | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Methoxychlor | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Methoxychlor | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Methoxychlor | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| BHC-GAMMA | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| BHC-GAMMA | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| BHC-GAMMA | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| BHC-GAMMA | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| BHC-GAMMA | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| LASSO | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| LASSO | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| LASSO | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Lead and Copper Rule | Health-Based | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Lead and Copper Rule | Health-Based | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Lead and Copper Rule | Health-Based | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Lead and Copper Rule | Health-Based | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| 1,2-DIBROMO-3-CHLOROPROPANE | Monitoring | N/A | N/A | Mar 31, 2021 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Mar 21, 2021 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Mar 21, 2021 | Resolved | N/A |
Lead & Copper Levels
Violation Timeline
2024(26)
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Public Notice
75
Public Notice
75
Lead and Copper Rule
66
Lead and Copper Rule
66
E. COLI
34
E. COLI
34
E. COLI
34
E. COLI
34
E. COLI
34
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Groundwater Rule
45
Groundwater Rule
45
Groundwater Rule
45
Groundwater Rule
45
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
Lead and Copper Rule
66
Lead and Copper Rule
66
2023(11)
Lead and Copper Rule
66
Lead and Copper Rule
66
Lead and Copper Rule
66
Public Notice
75
Public Notice
75
Public Notice
75
Lead and Copper Rule
57
Lead and Copper Rule
57
Lead and Copper Rule
57
Lead and Copper Rule
57
Lead and Copper Rule
57
2022(226)
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
Lead and Copper Rule
52
Consumer Confidence Rule
72
Consumer Confidence Rule
72
Consumer Confidence Rule
72
Consumer Confidence Rule
72
Consumer Confidence Rule
72
Lead and Copper Rule
53
Lead and Copper Rule
53
Lead and Copper Rule
53
Lead and Copper Rule
53
Lead and Copper Rule
52
Lead and Copper Rule
52
Lead and Copper Rule
52
Lead and Copper Rule
52
Lead and Copper Rule
52
Lead and Copper Rule
53
Lead and Copper Rule
52
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Methoxychlor
03
Methoxychlor
03
Methoxychlor
03
Methoxychlor
03
Methoxychlor
03
Methoxychlor
03
Methoxychlor
03
Toxaphene
03
Toxaphene
03
Toxaphene
03
Toxaphene
03
Toxaphene
03
Toxaphene
03
Toxaphene
03
Dalapon
03
Dalapon
03
Dalapon
03
Dalapon
03
Dalapon
03
Dalapon
03
Dalapon
03
OXAMYL
03
OXAMYL
03
OXAMYL
03
OXAMYL
03
OXAMYL
03
OXAMYL
03
OXAMYL
03
Simazine
03
Simazine
03
Simazine
03
Simazine
03
Simazine
03
Simazine
03
Simazine
03
Picloram
03
Picloram
03
Picloram
03
Picloram
03
Picloram
03
Picloram
03
Picloram
03
Dinoseb
03
Dinoseb
03
Dinoseb
03
Dinoseb
03
Dinoseb
03
Dinoseb
03
Dinoseb
03
Hexachlorocyclopentadiene
03
Hexachlorocyclopentadiene
03
Hexachlorocyclopentadiene
03
Hexachlorocyclopentadiene
03
Hexachlorocyclopentadiene
03
Hexachlorocyclopentadiene
03
Hexachlorocyclopentadiene
03
Aldicarb sulfoxide
03
Aldicarb sulfoxide
03
Aldicarb sulfoxide
03
Aldicarb sulfoxide
03
Aldicarb sulfoxide
03
Aldicarb sulfoxide
03
Aldicarb sulfoxide
03
LASSO
03
LASSO
03
LASSO
03
LASSO
03
LASSO
03
LASSO
03
LASSO
03
Heptachlor
03
Heptachlor
03
Heptachlor
03
Heptachlor
03
Heptachlor
03
Heptachlor
03
Heptachlor
03
Heptachlor epoxide
03
Heptachlor epoxide
03
Heptachlor epoxide
03
Heptachlor epoxide
03
Heptachlor epoxide
03
Heptachlor epoxide
03
Heptachlor epoxide
03
1,2-DIBROMO-3-CHLOROPROPANE
03
1,2-DIBROMO-3-CHLOROPROPANE
03
1,2-DIBROMO-3-CHLOROPROPANE
03
1,2-DIBROMO-3-CHLOROPROPANE
03
1,2-DIBROMO-3-CHLOROPROPANE
03
1,2-DIBROMO-3-CHLOROPROPANE
03
1,2-DIBROMO-3-CHLOROPROPANE
03
Atrazine
03
Atrazine
03
HEXACHLOROBENZENE
03
HEXACHLOROBENZENE
03
Di(2-ethylhexyl) phthalate
03
Di(2-ethylhexyl) phthalate
03
Di(2-ethylhexyl) phthalate
03
Di(2-ethylhexyl) phthalate
03
Di(2-ethylhexyl) phthalate
03
Endrin
03
Endrin
03
Endrin
03
Endrin
03
Endrin
03
Endrin
03
Endrin
03
Pentachlorophenol
03
Pentachlorophenol
03
Pentachlorophenol
03
Pentachlorophenol
03
Pentachlorophenol
03
Pentachlorophenol
03
Pentachlorophenol
03
Carbofuran
03
Carbofuran
03
Carbofuran
03
Carbofuran
03
Carbofuran
03
Carbofuran
03
Carbofuran
03
Aldicarb sulfone
03
Aldicarb sulfone
03
Aldicarb sulfone
03
2,4,5-TP
03
2,4,5-TP
03
2,4,5-TP
03
2,4,5-TP
03
2,4,5-TP
03
2,4,5-TP
03
2,4,5-TP
03
Aldicarb sulfone
03
Aldicarb sulfone
03
Aldicarb sulfone
03
Aldicarb sulfone
03
Benzo(a)pyrene
03
Benzo(a)pyrene
03
Benzo(a)pyrene
03
Benzo(a)pyrene
03
Benzo(a)pyrene
03
Benzo(a)pyrene
03
Benzo(a)pyrene
03
BHC-GAMMA
03
BHC-GAMMA
03
BHC-GAMMA
03
BHC-GAMMA
03
BHC-GAMMA
03
BHC-GAMMA
03
BHC-GAMMA
03
Atrazine
03
Atrazine
03
Atrazine
03
Atrazine
03
Atrazine
03
Di(2-ethylhexyl) phthalate
03
Di(2-ethylhexyl) phthalate
03
Aldicarb
03
Aldicarb
03
Aldicarb
03
2,4-D
03
2,4-D
03
2,4-D
03
2,4-D
03
2,4-D
03
2,4-D
03
2,4-D
03
Aldicarb
03
Aldicarb
03
Aldicarb
03
Di(2-ethylhexyl) adipate
03
Di(2-ethylhexyl) adipate
03
Di(2-ethylhexyl) adipate
03
Di(2-ethylhexyl) adipate
03
Di(2-ethylhexyl) adipate
03
Aldicarb
03
Chlordane
03
Chlordane
03
Chlordane
03
Chlordane
03
Chlordane
03
Chlordane
03
Chlordane
03
HEXACHLOROBENZENE
03
HEXACHLOROBENZENE
03
HEXACHLOROBENZENE
03
HEXACHLOROBENZENE
03
HEXACHLOROBENZENE
03
ETHYLENE DIBROMIDE
03
ETHYLENE DIBROMIDE
03
ETHYLENE DIBROMIDE
03
ETHYLENE DIBROMIDE
03
ETHYLENE DIBROMIDE
03
ETHYLENE DIBROMIDE
03
ETHYLENE DIBROMIDE
03
Di(2-ethylhexyl) adipate
03
Di(2-ethylhexyl) adipate
03
Revised Total Coliform Rule
3A
2021(250)
Lead and Copper Rule
56
Lead and Copper Rule
56
Lead and Copper Rule
56
Lead and Copper Rule
56
Lead and Copper Rule
56
Lead and Copper Rule
53
Lead and Copper Rule
53
Lead and Copper Rule
53
Lead and Copper Rule
53
Lead and Copper Rule
53
Lead and Copper Rule
53
Lead and Copper Rule
53
Lead and Copper Rule
56
Lead and Copper Rule
56
Aldicarb
03
Aldicarb
03
Aldicarb
03
BHC-GAMMA
03
HEXACHLOROBENZENE
03
BHC-GAMMA
03
Di(2-ethylhexyl) adipate
03
Di(2-ethylhexyl) adipate
03
Di(2-ethylhexyl) adipate
03
OXAMYL
03
BHC-GAMMA
03
OXAMYL
03
Hexachlorocyclopentadiene
03
Hexachlorocyclopentadiene
03
Hexachlorocyclopentadiene
03
Aldicarb sulfone
03
Aldicarb sulfone
03
Aldicarb sulfone
03
LASSO
03
LASSO
03
LASSO
03
2,4,5-TP
03
2,4,5-TP
03
2,4,5-TP
03
Benzo(a)pyrene
03
HEXACHLOROBENZENE
03
HEXACHLOROBENZENE
03
Benzo(a)pyrene
03
Benzo(a)pyrene
03
OXAMYL
03
Endrin
03
Toxaphene
03
ETHYLENE DIBROMIDE
03
ETHYLENE DIBROMIDE
03
Chlordane
03
Chlordane
03
Chlordane
03
Toxaphene
03
2,4-D
03
2,4-D
03
Endrin
03
Endrin
03
Carbofuran
03
Carbofuran
03
Carbofuran
03
ETHYLENE DIBROMIDE
03
Simazine
03
Simazine
03
Simazine
03
Heptachlor
03
Dinoseb
03
Dinoseb
03
1,2-DIBROMO-3-CHLOROPROPANE
03
1,2-DIBROMO-3-CHLOROPROPANE
03
1,2-DIBROMO-3-CHLOROPROPANE
03
Pentachlorophenol
03
Pentachlorophenol
03
Pentachlorophenol
03
Methoxychlor
03
Methoxychlor
03
Heptachlor
03
Heptachlor
03
Atrazine
03
Atrazine
03
Atrazine
03
Methoxychlor
03
Dalapon
03
Dalapon
03
Dalapon
03
Aldicarb sulfoxide
03
Aldicarb sulfoxide
03
Aldicarb sulfoxide
03
Di(2-ethylhexyl) phthalate
03
Di(2-ethylhexyl) phthalate
03
Di(2-ethylhexyl) phthalate
03
2,4-D
03
Toxaphene
03
Picloram
03
Picloram
03
Picloram
03
Heptachlor epoxide
03
Heptachlor epoxide
03
Heptachlor epoxide
03
Dinoseb
03
Lead and Copper Rule
53
Lead and Copper Rule
53
Lead and Copper Rule
53
Lead and Copper Rule
53
Lead and Copper Rule
53
Pentachlorophenol
03
Pentachlorophenol
03
Pentachlorophenol
03
Pentachlorophenol
03
Pentachlorophenol
03
Endrin
03
Endrin
03
Endrin
03
Endrin
03
Atrazine
03
Atrazine
03
Atrazine
03
Atrazine
03
Atrazine
03
Endrin
03
Toxaphene
03
Toxaphene
03
Toxaphene
03
Toxaphene
03
Toxaphene
03
OXAMYL
03
OXAMYL
03
OXAMYL
03
OXAMYL
03
OXAMYL
03
Simazine
03
Simazine
03
Simazine
03
Simazine
03
Simazine
03
Di(2-ethylhexyl) phthalate
03
Di(2-ethylhexyl) phthalate
03
Di(2-ethylhexyl) phthalate
03
Di(2-ethylhexyl) phthalate
03
Di(2-ethylhexyl) phthalate
03
Picloram
03
Picloram
03
Picloram
03
Picloram
03
Picloram
03
Dinoseb
03
Dinoseb
03
Dinoseb
03
Dinoseb
03
Dinoseb
03
Hexachlorocyclopentadiene
03
Hexachlorocyclopentadiene
03
Hexachlorocyclopentadiene
03
Hexachlorocyclopentadiene
03
Hexachlorocyclopentadiene
03
Aldicarb sulfoxide
03
Aldicarb sulfoxide
03
Aldicarb sulfoxide
03
Aldicarb sulfoxide
03
Aldicarb sulfoxide
03
Aldicarb sulfone
03
Aldicarb sulfone
03
Aldicarb sulfone
03
Aldicarb sulfone
03
Aldicarb sulfone
03
Carbofuran
03
Carbofuran
03
Carbofuran
03
Carbofuran
03
Carbofuran
03
Aldicarb
03
Aldicarb
03
Aldicarb
03
Aldicarb
03
Aldicarb
03
Heptachlor
03
Heptachlor
03
Heptachlor
03
Heptachlor
03
Heptachlor
03
2,4,5-TP
03
2,4,5-TP
03
2,4,5-TP
03
2,4,5-TP
03
2,4,5-TP
03
HEXACHLOROBENZENE
03
HEXACHLOROBENZENE
03
HEXACHLOROBENZENE
03
HEXACHLOROBENZENE
03
HEXACHLOROBENZENE
03
LASSO
03
Lead and Copper Rule
57
1,2-DIBROMO-3-CHLOROPROPANE
03
1,2-DIBROMO-3-CHLOROPROPANE
03
1,2-DIBROMO-3-CHLOROPROPANE
03
1,2-DIBROMO-3-CHLOROPROPANE
03
Dalapon
03
Dalapon
03
Dalapon
03
LASSO
03
2,4-D
03
Dalapon
03
Dalapon
03
2,4-D
03
2,4-D
03
ETHYLENE DIBROMIDE
03
Benzo(a)pyrene
03
Benzo(a)pyrene
03
Benzo(a)pyrene
03
Benzo(a)pyrene
03
Benzo(a)pyrene
03
ETHYLENE DIBROMIDE
03
ETHYLENE DIBROMIDE
03
ETHYLENE DIBROMIDE
03
Heptachlor epoxide
03
ETHYLENE DIBROMIDE
03
Chlordane
03
Chlordane
03
Heptachlor epoxide
03
Heptachlor epoxide
03
Heptachlor epoxide
03
Heptachlor epoxide
03
Chlordane
03
Chlordane
03
Chlordane
03
Di(2-ethylhexyl) adipate
03
Di(2-ethylhexyl) adipate
03
Di(2-ethylhexyl) adipate
03
Di(2-ethylhexyl) adipate
03
Di(2-ethylhexyl) adipate
03
2,4-D
03
2,4-D
03
Methoxychlor
03
Methoxychlor
03
Methoxychlor
03
Methoxychlor
03
Methoxychlor
03
BHC-GAMMA
03
BHC-GAMMA
03
BHC-GAMMA
03
BHC-GAMMA
03
BHC-GAMMA
03
LASSO
03
LASSO
03
LASSO
03
Lead and Copper Rule
57
Lead and Copper Rule
57
Lead and Copper Rule
57
Lead and Copper Rule
57
1,2-DIBROMO-3-CHLOROPROPANE
03
Public Notice
75
Public Notice
75
How Does This Compare?
HARWINTON (06791) has 513 recorded violations, including 14 health-based. 18 remain unresolved. 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
Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.
Targets:Lead, Copper, Arsenic, Mercury, Cadmium
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.