Water Quality in BOULDER, CO (80301)
EPA violation data for public water systems serving ZIP code 80301.
511
Total Violations
13
Health-Based
498
Monitoring / Reporting
498
Resolved
What does this mean?
498 of 511 violations have been resolved. 13 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 498 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 (511 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| Public Notice | Monitoring | N/A | N/A | Sep 24, 2025 | Active | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Aug 31, 2025 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Aug 31, 2025 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Aug 16, 2025 | Active | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jul 31, 2025 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jul 31, 2025 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Jul 8, 2025 | Active | N/A |
| Public Notice | Monitoring | N/A | N/A | Jul 8, 2025 | Active | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2025 | Active | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2025 | Active | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Jun 30, 2025 | Active | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Jun 30, 2025 | Active | N/A |
| Public Notice | Monitoring | N/A | N/A | Apr 8, 2025 | Active | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Mar 31, 2025 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Mar 31, 2025 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jan 14, 2025 | Active | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jan 14, 2025 | Active | N/A |
| Public Notice | Monitoring | N/A | N/A | Jan 8, 2025 | Active | 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 |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | May 29, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | May 29, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | May 29, 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 | Feb 29, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Feb 29, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jan 31, 2024 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jan 31, 2024 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | N/A |
| Nitrate | Monitoring | N/A | N/A | Dec 31, 2023 | 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, 2023 | 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 | Dec 27, 2023 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Dec 13, 2023 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Nov 30, 2023 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Nov 30, 2023 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Nov 30, 2023 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Nov 30, 2023 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Nov 29, 2023 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Nov 15, 2023 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Nov 9, 2023 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Nov 1, 2023 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Oct 31, 2023 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Oct 31, 2023 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Oct 18, 2023 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Oct 4, 2023 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Aldicarb sulfone | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Aldicarb sulfone | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Surface Water Treatment 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 |
| Simazine | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Simazine | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Carbon tetrachloride | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | Liver problems; increased risk of cancer |
| Carbon tetrachloride | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | Liver problems; increased risk of cancer |
| ETHYLENE DIBROMIDE | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Nickel | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Ethylbenzene | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Ethylbenzene | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Nickel | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Beryllium, Total | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Beryllium, Total | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Thallium, Total | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Thallium, Total | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Endrin | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Endrin | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| BHC-GAMMA | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| BHC-GAMMA | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Methoxychlor | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Methoxychlor | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Dalapon | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Dalapon | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Endothall | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Endothall | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Di(2-ethylhexyl) adipate | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Benzo(a)pyrene | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Benzo(a)pyrene | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Diquat | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Diquat | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| LASSO | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| LASSO | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Di(2-ethylhexyl) adipate | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| OXAMYL | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| OXAMYL | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Picloram | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| DICHLOROMETHANE | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| DICHLOROMETHANE | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| o-Dichlorobenzene | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| o-Dichlorobenzene | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Picloram | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Di(2-ethylhexyl) phthalate | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Xylenes, Total | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Chlorine | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | Eye and nose irritation; stomach discomfort |
| Mercury | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | Kidney damage |
| Mercury | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | Kidney damage |
| Dinoseb | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Dinoseb | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Hexachlorocyclopentadiene | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Toxaphene | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Toxaphene | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| HEXACHLOROBENZENE | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| HEXACHLOROBENZENE | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Hexachlorocyclopentadiene | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Aldicarb sulfoxide | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Di(2-ethylhexyl) phthalate | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Aldicarb sulfoxide | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Carbofuran | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Carbofuran | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Heptachlor | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Heptachlor | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Heptachlor epoxide | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Heptachlor epoxide | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Aldicarb | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Aldicarb | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| 2,4-D | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| 2,4-D | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| 2,4,5-TP | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| 2,4,5-TP | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Pentachlorophenol | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Pentachlorophenol | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Total Polychlorinated Biphenyls (PCB) | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Total Polychlorinated Biphenyls (PCB) | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| 1,2-DIBROMO-3-CHLOROPROPANE | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| 1,2-DIBROMO-3-CHLOROPROPANE | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Chlordane | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Chlordane | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| 1,2,4-Trichlorobenzene | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| 1,2,4-Trichlorobenzene | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| cis-1,2-Dichloroethylene | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| cis-1,2-Dichloroethylene | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| p-Dichlorobenzene | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| p-Dichlorobenzene | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| trans-1,2-Dichloroethylene | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| 1,1-Dichloroethylene | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| 1,1-Dichloroethylene | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| trans-1,2-Dichloroethylene | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| ETHYLENE DIBROMIDE | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Total Haloacetic Acids (HAA5) | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| 1,2-Dichloroethane | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| 1,2-Dichloroethane | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Arsenic | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Cadmium | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | Kidney damage |
| Cadmium | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | Kidney damage |
| Chromium | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | Allergic dermatitis |
| Chromium | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | Allergic dermatitis |
| Selenium | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | Hair or fingernail loss; numbness in fingers or toes; circulatory problems |
| Selenium | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | Hair or fingernail loss; numbness in fingers or toes; circulatory problems |
| 1,2-Dichloropropane | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| 1,2-Dichloropropane | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Nitrate | Monitoring | N/A | N/A | Sep 30, 2023 | 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, 2023 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Atrazine | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | Cardiovascular system or reproductive problems |
| Atrazine | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | Cardiovascular system or reproductive problems |
| Vinyl chloride | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | Increased risk of cancer |
| Vinyl chloride | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | Increased risk of cancer |
| Trichloroethylene | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | Liver problems; increased risk of cancer |
| Trichloroethylene | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | Liver problems; increased risk of cancer |
| Tetrachloroethylene | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | Liver problems; increased risk of cancer |
| Tetrachloroethylene | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | Liver problems; increased risk of cancer |
| 1,1,2-Trichloroethane | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| 1,1,2-Trichloroethane | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| CHLOROBENZENE | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| CHLOROBENZENE | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Toluene | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Toluene | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Total Haloacetic Acids (HAA5) | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| 1,1,1-Trichloroethane | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Fluoride | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| Fluoride | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| Styrene | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Styrene | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| TTHM | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| TTHM | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| 1,1,1-Trichloroethane | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Antimony, Total | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Antimony, Total | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Chlorine | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | Eye and nose irritation; stomach discomfort |
| Barium | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | Increase in blood pressure |
| Barium | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | Increase in blood pressure |
| Benzene | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | Anemia; decrease in blood platelets; increased risk of cancer |
| Benzene | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | Anemia; decrease in blood platelets; increased risk of cancer |
| Xylenes, Total | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Sep 20, 2023 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Sep 6, 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 |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Aug 31, 2023 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Aug 31, 2023 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Aug 11, 2023 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Jul 31, 2023 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Jul 31, 2023 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jul 31, 2023 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jul 31, 2023 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jul 10, 2023 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jul 10, 2023 | Resolved | N/A |
| Stage 2 Disinfectants and Disinfection Byproducts Rule | Monitoring | N/A | N/A | Jul 10, 2023 | Resolved | N/A |
| Stage 2 Disinfectants and Disinfection Byproducts Rule | Monitoring | N/A | N/A | Jul 10, 2023 | Resolved | N/A |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | Health-Based | N/A | N/A | Jul 7, 2023 | Resolved | N/A |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | Health-Based | N/A | N/A | Jul 7, 2023 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Pentachlorophenol | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Total Polychlorinated Biphenyls (PCB) | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Total Polychlorinated Biphenyls (PCB) | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| ETHYLENE DIBROMIDE | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| ETHYLENE DIBROMIDE | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Chlordane | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Chlordane | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Nickel | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Nickel | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Antimony, Total | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Antimony, Total | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Beryllium, Total | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Beryllium, Total | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Thallium, Total | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Thallium, Total | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Total Haloacetic Acids (HAA5) | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Total Haloacetic Acids (HAA5) | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Simazine | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Simazine | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Benzo(a)pyrene | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| 2,4,5-TP | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| 2,4,5-TP | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| HEXACHLOROBENZENE | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Vinyl chloride | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | Increased risk of cancer |
| 1,2-Dichloropropane | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Carbofuran | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Carbofuran | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| 1,1,2-Trichloroethane | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| 1,1,2-Trichloroethane | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| p-Dichlorobenzene | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| trans-1,2-Dichloroethylene | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| HEXACHLOROBENZENE | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Dinoseb | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Hexachlorocyclopentadiene | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Di(2-ethylhexyl) phthalate | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| o-Dichlorobenzene | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| o-Dichlorobenzene | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Hexachlorocyclopentadiene | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Heptachlor epoxide | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Di(2-ethylhexyl) phthalate | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Picloram | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Picloram | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| DICHLOROMETHANE | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Heptachlor epoxide | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| 2,4-D | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Chromium | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | Allergic dermatitis |
| Chromium | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | Allergic dermatitis |
| DICHLOROMETHANE | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| 1,2-Dichloroethane | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| 1,2-Dichloroethane | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Fluoride | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| Fluoride | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| Atrazine | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | Cardiovascular system or reproductive problems |
| Atrazine | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | Cardiovascular system or reproductive problems |
| 1,2-Dichloropropane | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| trans-1,2-Dichloroethylene | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Vinyl chloride | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | Increased risk of cancer |
| 2,4-D | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Benzo(a)pyrene | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Selenium | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | Hair or fingernail loss; numbness in fingers or toes; circulatory problems |
| LASSO | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| LASSO | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Toxaphene | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Toxaphene | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Xylenes, Total | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Xylenes, Total | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Heptachlor | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Heptachlor | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Selenium | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | Hair or fingernail loss; numbness in fingers or toes; circulatory problems |
| Endrin | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Endrin | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Endothall | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Carbon tetrachloride | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | Liver problems; increased risk of cancer |
| Carbon tetrachloride | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | Liver problems; increased risk of cancer |
| Trichloroethylene | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | Liver problems; increased risk of cancer |
| Trichloroethylene | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | Liver problems; increased risk of cancer |
| Tetrachloroethylene | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | Liver problems; increased risk of cancer |
| Tetrachloroethylene | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | Liver problems; increased risk of cancer |
| Benzene | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | Anemia; decrease in blood platelets; increased risk of cancer |
| Benzene | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | Anemia; decrease in blood platelets; increased risk of cancer |
| Endothall | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Styrene | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Styrene | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| 1,1,1-Trichloroethane | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Arsenic | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Mercury | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | Kidney damage |
| Mercury | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | Kidney damage |
| 1,1,1-Trichloroethane | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Ethylbenzene | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Ethylbenzene | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Cadmium | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | Kidney damage |
| Cadmium | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | Kidney damage |
| TTHM | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| TTHM | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Dinoseb | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| 1,2,4-Trichlorobenzene | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| 1,2,4-Trichlorobenzene | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Chlorine | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | Eye and nose irritation; stomach discomfort |
| Chlorine | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | Eye and nose irritation; stomach discomfort |
| CHLOROBENZENE | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| p-Dichlorobenzene | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| CHLOROBENZENE | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Toluene | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Toluene | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| 1,2-DIBROMO-3-CHLOROPROPANE | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| 1,2-DIBROMO-3-CHLOROPROPANE | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| BHC-GAMMA | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| BHC-GAMMA | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Dalapon | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| 1,1-Dichloroethylene | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| 1,1-Dichloroethylene | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Pentachlorophenol | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Nitrate | Monitoring | N/A | N/A | Jun 30, 2023 | 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, 2023 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Dalapon | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Di(2-ethylhexyl) adipate | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Diquat | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Diquat | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| cis-1,2-Dichloroethylene | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| cis-1,2-Dichloroethylene | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Di(2-ethylhexyl) adipate | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| OXAMYL | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Barium | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | Increase in blood pressure |
| Barium | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | Increase in blood pressure |
| Methoxychlor | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Methoxychlor | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| OXAMYL | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | May 31, 2023 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | May 31, 2023 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | May 31, 2023 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | May 31, 2023 | Resolved | N/A |
| Surface Water Treatment Rule | Health-Based | N/A | N/A | Apr 30, 2023 | Resolved | N/A |
| Surface Water Treatment Rule | Health-Based | N/A | N/A | Apr 30, 2023 | Resolved | N/A |
| Surface Water Treatment Rule | Health-Based | N/A | N/A | Apr 30, 2023 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Apr 30, 2023 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Apr 30, 2023 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Apr 30, 2023 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Apr 30, 2023 | Resolved | N/A |
| BHC-GAMMA | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| p-Dichlorobenzene | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| p-Dichlorobenzene | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| 1,1-Dichloroethylene | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| 1,1-Dichloroethylene | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| trans-1,2-Dichloroethylene | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| trans-1,2-Dichloroethylene | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| 1,2-Dichloroethane | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| 1,2-Dichloroethane | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| 1,2-Dichloropropane | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| 1,2-Dichloropropane | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| CHLOROBENZENE | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| CHLOROBENZENE | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Toluene | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Toluene | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Ethylbenzene | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Ethylbenzene | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| TTHM | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| TTHM | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Total Haloacetic Acids (HAA5) | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Total Haloacetic Acids (HAA5) | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| 2,4-D | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| 2,4-D | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Thallium, Total | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Thallium, Total | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| 1,2-DIBROMO-3-CHLOROPROPANE | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| 1,2-DIBROMO-3-CHLOROPROPANE | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| cis-1,2-Dichloroethylene | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| cis-1,2-Dichloroethylene | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| 1,1,1-Trichloroethane | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| 1,1,1-Trichloroethane | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Nitrate | Monitoring | N/A | N/A | Mar 31, 2023 | 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, 2023 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| OXAMYL | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| OXAMYL | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Nickel | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Nickel | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| LASSO | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| LASSO | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Fluoride | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| Fluoride | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| 1,2,4-Trichlorobenzene | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| 1,2,4-Trichlorobenzene | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Arsenic | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Barium | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | Increase in blood pressure |
| Barium | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | Increase in blood pressure |
| HEXACHLOROBENZENE | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| HEXACHLOROBENZENE | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Cadmium | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | Kidney damage |
| Cadmium | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | Kidney damage |
| Styrene | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Styrene | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Selenium | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | Hair or fingernail loss; numbness in fingers or toes; circulatory problems |
| Selenium | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | Hair or fingernail loss; numbness in fingers or toes; circulatory problems |
| Chromium | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | Allergic dermatitis |
| Chromium | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | Allergic dermatitis |
| Chlordane | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Chlordane | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| o-Dichlorobenzene | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| o-Dichlorobenzene | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Vinyl chloride | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | Increased risk of cancer |
| Vinyl chloride | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | Increased risk of cancer |
| 1,1,2-Trichloroethane | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| 1,1,2-Trichloroethane | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Di(2-ethylhexyl) adipate | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Di(2-ethylhexyl) adipate | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Carbon tetrachloride | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | Liver problems; increased risk of cancer |
| Carbon tetrachloride | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | Liver problems; increased risk of cancer |
| Dinoseb | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Dinoseb | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Trichloroethylene | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | Liver problems; increased risk of cancer |
| Trichloroethylene | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | Liver problems; increased risk of cancer |
| Tetrachloroethylene | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | Liver problems; increased risk of cancer |
| Tetrachloroethylene | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | Liver problems; increased risk of cancer |
| Benzene | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | Anemia; decrease in blood platelets; increased risk of cancer |
| Benzene | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | Anemia; decrease in blood platelets; increased risk of cancer |
| Antimony, Total | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Antimony, Total | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| BHC-GAMMA | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Beryllium, Total | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Beryllium, Total | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Endrin | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Endrin | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Methoxychlor | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Methoxychlor | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Toxaphene | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Toxaphene | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Diquat | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Dalapon | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Dalapon | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Diquat | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Chlorine | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | Eye and nose irritation; stomach discomfort |
| Chlorine | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | Eye and nose irritation; stomach discomfort |
| Endothall | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Endothall | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Simazine | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Simazine | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Mercury | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | Kidney damage |
| Mercury | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | Kidney damage |
| Di(2-ethylhexyl) phthalate | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Di(2-ethylhexyl) phthalate | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Hexachlorocyclopentadiene | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Hexachlorocyclopentadiene | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Carbofuran | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Carbofuran | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Picloram | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Picloram | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Heptachlor | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Heptachlor | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Heptachlor epoxide | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Heptachlor epoxide | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Benzo(a)pyrene | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Benzo(a)pyrene | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Atrazine | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | Cardiovascular system or reproductive problems |
| Atrazine | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | Cardiovascular system or reproductive problems |
| 2,4,5-TP | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| 2,4,5-TP | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Pentachlorophenol | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Pentachlorophenol | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Total Polychlorinated Biphenyls (PCB) | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Total Polychlorinated Biphenyls (PCB) | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| ETHYLENE DIBROMIDE | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| ETHYLENE DIBROMIDE | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Xylenes, Total | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Xylenes, Total | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| DICHLOROMETHANE | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| DICHLOROMETHANE | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Feb 28, 2023 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Feb 28, 2023 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Feb 28, 2023 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Feb 28, 2023 | Resolved | N/A |
| Interim Enhanced Surface Water Treatment Rule | Monitoring | N/A | N/A | Feb 28, 2023 | Resolved | N/A |
| Interim Enhanced Surface Water Treatment Rule | Monitoring | N/A | N/A | Feb 28, 2023 | Resolved | N/A |
| Interim Enhanced Surface Water Treatment Rule | Monitoring | N/A | N/A | Feb 28, 2023 | Resolved | N/A |
| Interim Enhanced Surface Water Treatment Rule | Monitoring | N/A | N/A | Feb 28, 2023 | Resolved | N/A |
| Nitrite | 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 |
| Nitrite | 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 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | Health-Based | N/A | N/A | Jun 30, 2022 | Resolved | N/A |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | Health-Based | N/A | N/A | Jun 30, 2022 | Resolved | N/A |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | Health-Based | N/A | N/A | Jun 30, 2022 | Resolved | N/A |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | Health-Based | N/A | N/A | Jun 30, 2022 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Feb 27, 2022 | Active | N/A |
| Public Notice | Monitoring | N/A | N/A | Jan 2, 2022 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Jan 2, 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 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | Health-Based | N/A | N/A | Nov 30, 2021 | Resolved | N/A |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | Health-Based | N/A | N/A | Nov 30, 2021 | Resolved | N/A |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | Health-Based | N/A | N/A | Nov 30, 2021 | Resolved | N/A |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | Health-Based | N/A | N/A | Nov 30, 2021 | Resolved | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Interim Enhanced Surface Water Treatment Rule | Monitoring | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Interim Enhanced Surface Water Treatment Rule | Monitoring | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Interim Enhanced Surface Water Treatment Rule | Monitoring | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Interim Enhanced Surface Water Treatment Rule | Monitoring | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Mar 13, 2021 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Mar 13, 2021 | Resolved | N/A |
Lead & Copper Levels
Violation Timeline
2025(18)
Public Notice
75
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Public Notice
75
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Public Notice
76
Public Notice
76
Consumer Confidence Rule
71
Consumer Confidence Rule
71
Lead and Copper Rule
51
Lead and Copper Rule
51
Public Notice
76
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
5A
Revised Total Coliform Rule
5A
Public Notice
76
2024(11)
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
5A
Revised Total Coliform Rule
5A
Revised Total Coliform Rule
5A
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
2023(452)
Lead and Copper Rule
51
Lead and Copper Rule
51
Nitrate
03
Nitrate
03
Public Notice
76
Public Notice
76
Surface Water Treatment Rule
36
Surface Water Treatment Rule
36
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Public Notice
76
Public Notice
76
Public Notice
75
Public Notice
76
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Public Notice
76
Public Notice
76
Surface Water Treatment Rule
36
Aldicarb sulfone
03
Aldicarb sulfone
03
Surface Water Treatment Rule
36
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Simazine
03
Simazine
03
Carbon tetrachloride
03
Carbon tetrachloride
03
ETHYLENE DIBROMIDE
03
Nickel
03
Ethylbenzene
03
Ethylbenzene
03
Nickel
03
Beryllium, Total
03
Beryllium, Total
03
Thallium, Total
03
Thallium, Total
03
Endrin
03
Endrin
03
BHC-GAMMA
03
BHC-GAMMA
03
Methoxychlor
03
Methoxychlor
03
Dalapon
03
Dalapon
03
Endothall
03
Endothall
03
Di(2-ethylhexyl) adipate
03
Benzo(a)pyrene
03
Benzo(a)pyrene
03
Diquat
03
Diquat
03
LASSO
03
LASSO
03
Di(2-ethylhexyl) adipate
03
OXAMYL
03
OXAMYL
03
Picloram
03
DICHLOROMETHANE
03
DICHLOROMETHANE
03
o-Dichlorobenzene
03
o-Dichlorobenzene
03
Picloram
03
Di(2-ethylhexyl) phthalate
03
Xylenes, Total
03
Chlorine
27
Mercury
03
Mercury
03
Dinoseb
03
Dinoseb
03
Hexachlorocyclopentadiene
03
Toxaphene
03
Toxaphene
03
HEXACHLOROBENZENE
03
HEXACHLOROBENZENE
03
Hexachlorocyclopentadiene
03
Aldicarb sulfoxide
03
Di(2-ethylhexyl) phthalate
03
Aldicarb sulfoxide
03
Carbofuran
03
Carbofuran
03
Heptachlor
03
Heptachlor
03
Heptachlor epoxide
03
Heptachlor epoxide
03
Aldicarb
03
Aldicarb
03
2,4-D
03
2,4-D
03
2,4,5-TP
03
2,4,5-TP
03
Pentachlorophenol
03
Pentachlorophenol
03
Total Polychlorinated Biphenyls (PCB)
03
Total Polychlorinated Biphenyls (PCB)
03
1,2-DIBROMO-3-CHLOROPROPANE
03
1,2-DIBROMO-3-CHLOROPROPANE
03
Chlordane
03
Chlordane
03
1,2,4-Trichlorobenzene
03
1,2,4-Trichlorobenzene
03
cis-1,2-Dichloroethylene
03
cis-1,2-Dichloroethylene
03
p-Dichlorobenzene
03
p-Dichlorobenzene
03
trans-1,2-Dichloroethylene
03
1,1-Dichloroethylene
03
1,1-Dichloroethylene
03
trans-1,2-Dichloroethylene
03
ETHYLENE DIBROMIDE
03
Total Haloacetic Acids (HAA5)
27
1,2-Dichloroethane
03
1,2-Dichloroethane
03
Arsenic
03
Arsenic
03
Cadmium
03
Cadmium
03
Chromium
03
Chromium
03
Selenium
03
Selenium
03
1,2-Dichloropropane
03
1,2-Dichloropropane
03
Nitrate
03
Nitrate
03
Atrazine
03
Atrazine
03
Vinyl chloride
03
Vinyl chloride
03
Trichloroethylene
03
Trichloroethylene
03
Tetrachloroethylene
03
Tetrachloroethylene
03
1,1,2-Trichloroethane
03
1,1,2-Trichloroethane
03
CHLOROBENZENE
03
CHLOROBENZENE
03
Toluene
03
Toluene
03
Total Haloacetic Acids (HAA5)
27
1,1,1-Trichloroethane
03
Fluoride
03
Fluoride
03
Styrene
03
Styrene
03
TTHM
27
TTHM
27
1,1,1-Trichloroethane
03
Antimony, Total
03
Antimony, Total
03
Chlorine
27
Barium
03
Barium
03
Benzene
03
Benzene
03
Xylenes, Total
03
Public Notice
76
Public Notice
76
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Surface Water Treatment Rule
36
Surface Water Treatment Rule
36
Public Notice
75
Surface Water Treatment Rule
36
Surface Water Treatment Rule
36
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
5A
Revised Total Coliform Rule
5A
Stage 2 Disinfectants and Disinfection Byproducts Rule
35
Stage 2 Disinfectants and Disinfection Byproducts Rule
35
Stage 1 Disinfectants and Disinfection Byproducts Rule
12
Stage 1 Disinfectants and Disinfection Byproducts Rule
12
Revised Total Coliform Rule
3A
Pentachlorophenol
03
Total Polychlorinated Biphenyls (PCB)
03
Total Polychlorinated Biphenyls (PCB)
03
ETHYLENE DIBROMIDE
03
ETHYLENE DIBROMIDE
03
Chlordane
03
Chlordane
03
Nickel
03
Nickel
03
Antimony, Total
03
Antimony, Total
03
Beryllium, Total
03
Beryllium, Total
03
Thallium, Total
03
Thallium, Total
03
Total Haloacetic Acids (HAA5)
27
Total Haloacetic Acids (HAA5)
27
Surface Water Treatment Rule
36
Simazine
03
Simazine
03
Benzo(a)pyrene
03
2,4,5-TP
03
2,4,5-TP
03
HEXACHLOROBENZENE
03
Vinyl chloride
03
1,2-Dichloropropane
03
Revised Total Coliform Rule
3A
Carbofuran
03
Carbofuran
03
1,1,2-Trichloroethane
03
1,1,2-Trichloroethane
03
p-Dichlorobenzene
03
trans-1,2-Dichloroethylene
03
HEXACHLOROBENZENE
03
Surface Water Treatment Rule
36
Dinoseb
03
Hexachlorocyclopentadiene
03
Di(2-ethylhexyl) phthalate
03
o-Dichlorobenzene
03
o-Dichlorobenzene
03
Hexachlorocyclopentadiene
03
Heptachlor epoxide
03
Di(2-ethylhexyl) phthalate
03
Picloram
03
Picloram
03
DICHLOROMETHANE
03
Heptachlor epoxide
03
2,4-D
03
Chromium
03
Chromium
03
DICHLOROMETHANE
03
1,2-Dichloroethane
03
1,2-Dichloroethane
03
Fluoride
03
Fluoride
03
Atrazine
03
Atrazine
03
1,2-Dichloropropane
03
trans-1,2-Dichloroethylene
03
Vinyl chloride
03
2,4-D
03
Benzo(a)pyrene
03
Selenium
03
LASSO
03
LASSO
03
Toxaphene
03
Toxaphene
03
Xylenes, Total
03
Xylenes, Total
03
Heptachlor
03
Heptachlor
03
Selenium
03
Endrin
03
Endrin
03
Endothall
03
Carbon tetrachloride
03
Carbon tetrachloride
03
Trichloroethylene
03
Trichloroethylene
03
Tetrachloroethylene
03
Tetrachloroethylene
03
Benzene
03
Benzene
03
Endothall
03
Styrene
03
Styrene
03
1,1,1-Trichloroethane
03
Arsenic
03
Arsenic
03
Mercury
03
Mercury
03
1,1,1-Trichloroethane
03
Ethylbenzene
03
Ethylbenzene
03
Cadmium
03
Cadmium
03
TTHM
27
TTHM
27
Dinoseb
03
1,2,4-Trichlorobenzene
03
1,2,4-Trichlorobenzene
03
Chlorine
27
Chlorine
27
CHLOROBENZENE
03
p-Dichlorobenzene
03
CHLOROBENZENE
03
Toluene
03
Toluene
03
1,2-DIBROMO-3-CHLOROPROPANE
03
1,2-DIBROMO-3-CHLOROPROPANE
03
BHC-GAMMA
03
BHC-GAMMA
03
Dalapon
03
1,1-Dichloroethylene
03
1,1-Dichloroethylene
03
Pentachlorophenol
03
Nitrate
03
Nitrate
03
Dalapon
03
Di(2-ethylhexyl) adipate
03
Diquat
03
Diquat
03
cis-1,2-Dichloroethylene
03
cis-1,2-Dichloroethylene
03
Di(2-ethylhexyl) adipate
03
OXAMYL
03
Barium
03
Barium
03
Methoxychlor
03
Methoxychlor
03
OXAMYL
03
Surface Water Treatment Rule
36
Surface Water Treatment Rule
36
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Surface Water Treatment Rule
41
Surface Water Treatment Rule
41
Surface Water Treatment Rule
41
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Surface Water Treatment Rule
36
Surface Water Treatment Rule
36
BHC-GAMMA
03
p-Dichlorobenzene
03
p-Dichlorobenzene
03
1,1-Dichloroethylene
03
1,1-Dichloroethylene
03
trans-1,2-Dichloroethylene
03
trans-1,2-Dichloroethylene
03
1,2-Dichloroethane
03
1,2-Dichloroethane
03
1,2-Dichloropropane
03
1,2-Dichloropropane
03
CHLOROBENZENE
03
CHLOROBENZENE
03
Toluene
03
Toluene
03
Ethylbenzene
03
Ethylbenzene
03
TTHM
27
TTHM
27
Total Haloacetic Acids (HAA5)
27
Total Haloacetic Acids (HAA5)
27
2,4-D
03
2,4-D
03
Thallium, Total
03
Thallium, Total
03
1,2-DIBROMO-3-CHLOROPROPANE
03
1,2-DIBROMO-3-CHLOROPROPANE
03
cis-1,2-Dichloroethylene
03
cis-1,2-Dichloroethylene
03
1,1,1-Trichloroethane
03
1,1,1-Trichloroethane
03
Nitrate
03
Nitrate
03
OXAMYL
03
OXAMYL
03
Nickel
03
Nickel
03
LASSO
03
LASSO
03
Fluoride
03
Fluoride
03
1,2,4-Trichlorobenzene
03
1,2,4-Trichlorobenzene
03
Arsenic
03
Arsenic
03
Barium
03
Barium
03
HEXACHLOROBENZENE
03
HEXACHLOROBENZENE
03
Cadmium
03
Cadmium
03
Styrene
03
Styrene
03
Selenium
03
Selenium
03
Chromium
03
Chromium
03
Chlordane
03
Chlordane
03
o-Dichlorobenzene
03
o-Dichlorobenzene
03
Vinyl chloride
03
Vinyl chloride
03
1,1,2-Trichloroethane
03
1,1,2-Trichloroethane
03
Di(2-ethylhexyl) adipate
03
Di(2-ethylhexyl) adipate
03
Carbon tetrachloride
03
Carbon tetrachloride
03
Dinoseb
03
Dinoseb
03
Trichloroethylene
03
Trichloroethylene
03
Tetrachloroethylene
03
Tetrachloroethylene
03
Benzene
03
Benzene
03
Antimony, Total
03
Antimony, Total
03
BHC-GAMMA
03
Beryllium, Total
03
Beryllium, Total
03
Endrin
03
Endrin
03
Methoxychlor
03
Methoxychlor
03
Toxaphene
03
Toxaphene
03
Diquat
03
Dalapon
03
Dalapon
03
Diquat
03
Chlorine
27
Chlorine
27
Endothall
03
Endothall
03
Simazine
03
Simazine
03
Mercury
03
Mercury
03
Di(2-ethylhexyl) phthalate
03
Di(2-ethylhexyl) phthalate
03
Hexachlorocyclopentadiene
03
Hexachlorocyclopentadiene
03
Carbofuran
03
Carbofuran
03
Picloram
03
Picloram
03
Heptachlor
03
Heptachlor
03
Heptachlor epoxide
03
Heptachlor epoxide
03
Benzo(a)pyrene
03
Benzo(a)pyrene
03
Atrazine
03
Atrazine
03
2,4,5-TP
03
2,4,5-TP
03
Pentachlorophenol
03
Pentachlorophenol
03
Total Polychlorinated Biphenyls (PCB)
03
Total Polychlorinated Biphenyls (PCB)
03
ETHYLENE DIBROMIDE
03
ETHYLENE DIBROMIDE
03
Xylenes, Total
03
Xylenes, Total
03
DICHLOROMETHANE
03
DICHLOROMETHANE
03
Surface Water Treatment Rule
36
Surface Water Treatment Rule
36
Surface Water Treatment Rule
36
Surface Water Treatment Rule
36
Interim Enhanced Surface Water Treatment Rule
38
Interim Enhanced Surface Water Treatment Rule
38
Interim Enhanced Surface Water Treatment Rule
38
Interim Enhanced Surface Water Treatment Rule
38
2022(9)
Nitrite
03
Nitrite
03
Stage 1 Disinfectants and Disinfection Byproducts Rule
12
Stage 1 Disinfectants and Disinfection Byproducts Rule
12
Stage 1 Disinfectants and Disinfection Byproducts Rule
12
Stage 1 Disinfectants and Disinfection Byproducts Rule
12
Public Notice
76
Public Notice
75
Public Notice
75
2021(21)
Lead and Copper Rule
66
Lead and Copper Rule
66
Lead and Copper Rule
66
Lead and Copper Rule
66
Stage 1 Disinfectants and Disinfection Byproducts Rule
12
Stage 1 Disinfectants and Disinfection Byproducts Rule
12
Stage 1 Disinfectants and Disinfection Byproducts Rule
12
Stage 1 Disinfectants and Disinfection Byproducts Rule
12
Consumer Confidence Rule
71
Consumer Confidence Rule
71
Consumer Confidence Rule
71
Interim Enhanced Surface Water Treatment Rule
38
Interim Enhanced Surface Water Treatment Rule
38
Interim Enhanced Surface Water Treatment Rule
38
Interim Enhanced Surface Water Treatment Rule
38
Surface Water Treatment Rule
36
Surface Water Treatment Rule
36
Surface Water Treatment Rule
36
Surface Water Treatment Rule
36
Public Notice
76
Public Notice
76
How Does This Compare?
BOULDER (80301) has 511 recorded violations, including 13 health-based. 13 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
Activated Carbon Filter
Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.
Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor
Look for:NSF/ANSI 42 & 53 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.