Water Quality in JOHNSTOWN, PA (15907)
EPA violation data for public water systems serving ZIP code 15907.
215
Total Violations
0
Health-Based
215
Monitoring / Reporting
215
Resolved
What does this mean?
215 of 215 violations have been resolved. None of these are health-based violations — no contaminant levels exceeded federal safety limits. The remaining 215 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 (215 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| Interim Enhanced Surface Water Treatment Rule | Monitoring | N/A | N/A | Aug 31, 2025 | Resolved | N/A |
| Interim Enhanced Surface Water Treatment Rule | Monitoring | N/A | N/A | Aug 31, 2025 | Resolved | N/A |
| Interim Enhanced Surface Water Treatment Rule | Monitoring | N/A | N/A | Aug 31, 2025 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Apr 30, 2025 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Apr 30, 2025 | Resolved | N/A |
| Interim Enhanced Surface Water Treatment Rule | Monitoring | N/A | N/A | Mar 31, 2024 | Resolved | N/A |
| Interim Enhanced Surface Water Treatment Rule | Monitoring | N/A | N/A | Mar 31, 2024 | Resolved | N/A |
| Barium | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Increase in blood pressure |
| Barium | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Increase in blood pressure |
| Cadmium | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Kidney damage |
| Cadmium | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Kidney damage |
| Chromium | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Allergic dermatitis |
| Chromium | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Allergic dermatitis |
| Fluoride | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| Fluoride | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| Mercury | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Kidney damage |
| Mercury | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Kidney damage |
| Nickel | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | N/A |
| Nickel | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | N/A |
| Chromium | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Allergic dermatitis |
| Cadmium | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Kidney damage |
| CYANIDE | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Nerve damage or thyroid problems |
| CYANIDE | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Nerve damage or thyroid problems |
| CYANIDE | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Nerve damage or thyroid problems |
| CYANIDE | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Nerve damage or thyroid problems |
| Beryllium, Total | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | N/A |
| Beryllium, Total | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | N/A |
| Beryllium, Total | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | N/A |
| Beryllium, Total | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | N/A |
| Nickel | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | N/A |
| Nickel | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | N/A |
| Nickel | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | N/A |
| Barium | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Increase in blood pressure |
| Barium | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Increase in blood pressure |
| Chromium | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Allergic dermatitis |
| Barium | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Increase in blood pressure |
| Barium | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Increase in blood pressure |
| Arsenic | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Fluoride | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| Fluoride | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| Fluoride | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| Fluoride | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Bone disease (pain and tenderness of the bones); children may get mottled teeth |
| Mercury | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Kidney damage |
| Mercury | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Kidney damage |
| Mercury | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Kidney damage |
| Mercury | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Kidney damage |
| Selenium | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Hair or fingernail loss; numbness in fingers or toes; circulatory problems |
| Selenium | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Hair or fingernail loss; numbness in fingers or toes; circulatory problems |
| Selenium | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Hair or fingernail loss; numbness in fingers or toes; circulatory problems |
| Selenium | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Hair or fingernail loss; numbness in fingers or toes; circulatory problems |
| Antimony, Total | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | N/A |
| Antimony, Total | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | N/A |
| Antimony, Total | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | N/A |
| Antimony, Total | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | N/A |
| Thallium, Total | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | N/A |
| Thallium, Total | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | N/A |
| Thallium, Total | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | N/A |
| Thallium, Total | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | N/A |
| Chromium | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Allergic dermatitis |
| Chromium | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Allergic dermatitis |
| Nickel | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | N/A |
| Cadmium | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Kidney damage |
| Cadmium | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Kidney damage |
| Cadmium | Monitoring | N/A | N/A | Dec 31, 2023 | Resolved | Kidney damage |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Oct 31, 2023 | Resolved | N/A |
| Surface Water Treatment Rule | Monitoring | N/A | N/A | Oct 31, 2023 | Resolved | N/A |
| Chlorine | Monitoring | N/A | N/A | Oct 31, 2023 | Resolved | Eye and nose irritation; stomach discomfort |
| Chlorine | Monitoring | N/A | N/A | Oct 31, 2023 | Resolved | Eye and nose irritation; stomach discomfort |
| 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 |
| 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 |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Surface Water Treatment Rule | 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 |
| Chlorine | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | Eye and nose irritation; stomach discomfort |
| Chlorine | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | Eye and nose irritation; stomach discomfort |
| ETHYLENE DIBROMIDE | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| ETHYLENE DIBROMIDE | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| ETHYLENE DIBROMIDE | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| ETHYLENE DIBROMIDE | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Hexachlorocyclopentadiene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Hexachlorocyclopentadiene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Hexachlorocyclopentadiene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Hexachlorocyclopentadiene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| 2,4-D | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| 2,4-D | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| 2,4-D | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| 2,4-D | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Dalapon | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Dalapon | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Dalapon | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Dalapon | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Diquat | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Diquat | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Diquat | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Diquat | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Simazine | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Simazine | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Simazine | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Simazine | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Di(2-ethylhexyl) phthalate | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Di(2-ethylhexyl) phthalate | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Di(2-ethylhexyl) phthalate | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Di(2-ethylhexyl) phthalate | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| LASSO | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| LASSO | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| LASSO | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| LASSO | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Pentachlorophenol | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Pentachlorophenol | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Pentachlorophenol | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Pentachlorophenol | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Atrazine | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | Cardiovascular system or reproductive problems |
| Atrazine | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | Cardiovascular system or reproductive problems |
| Atrazine | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | Cardiovascular system or reproductive problems |
| Atrazine | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | Cardiovascular system or reproductive problems |
| Methoxychlor | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Methoxychlor | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Methoxychlor | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Methoxychlor | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Toxaphene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Toxaphene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Toxaphene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Toxaphene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Endothall | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Endothall | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Endothall | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Endothall | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Glyphosate | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Glyphosate | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Glyphosate | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Glyphosate | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| OXAMYL | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| OXAMYL | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| OXAMYL | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| OXAMYL | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Picloram | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Picloram | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Picloram | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Picloram | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Dinoseb | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Dinoseb | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Dinoseb | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Dinoseb | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Carbofuran | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Carbofuran | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Carbofuran | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Carbofuran | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Heptachlor | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Heptachlor | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Heptachlor | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Heptachlor | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Heptachlor epoxide | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Heptachlor epoxide | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Heptachlor epoxide | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Heptachlor epoxide | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| 2,4,5-TP | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| 2,4,5-TP | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| 2,4,5-TP | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| 2,4,5-TP | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Total Polychlorinated Biphenyls (PCB) | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Total Polychlorinated Biphenyls (PCB) | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Total Polychlorinated Biphenyls (PCB) | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Total Polychlorinated Biphenyls (PCB) | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| 1,2-DIBROMO-3-CHLOROPROPANE | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| 1,2-DIBROMO-3-CHLOROPROPANE | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| 1,2-DIBROMO-3-CHLOROPROPANE | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| 1,2-DIBROMO-3-CHLOROPROPANE | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Chlordane | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Chlordane | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Chlordane | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Chlordane | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Benzo(a)pyrene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| BHC-GAMMA | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| BHC-GAMMA | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| BHC-GAMMA | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| BHC-GAMMA | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Benzo(a)pyrene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Benzo(a)pyrene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Benzo(a)pyrene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| HEXACHLOROBENZENE | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| HEXACHLOROBENZENE | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| HEXACHLOROBENZENE | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| HEXACHLOROBENZENE | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Di(2-ethylhexyl) adipate | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Di(2-ethylhexyl) adipate | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Di(2-ethylhexyl) adipate | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Di(2-ethylhexyl) adipate | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Endrin | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Endrin | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Endrin | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Endrin | Monitoring | N/A | N/A | Dec 31, 2022 | 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| Asbestos | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Asbestos | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Asbestos | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Asbestos | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Asbestos | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Asbestos | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Asbestos | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Asbestos | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
Lead & Copper Levels
Violation Timeline
2025(5)
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
2024(2)
Interim Enhanced Surface Water Treatment Rule
38
Interim Enhanced Surface Water Treatment Rule
38
2023(76)
Barium
03
Barium
03
Cadmium
03
Cadmium
03
Chromium
03
Chromium
03
Fluoride
03
Fluoride
03
Mercury
03
Mercury
03
Nickel
03
Nickel
03
Chromium
03
Cadmium
03
CYANIDE
03
CYANIDE
03
CYANIDE
03
CYANIDE
03
Beryllium, Total
03
Beryllium, Total
03
Beryllium, Total
03
Beryllium, Total
03
Nickel
03
Nickel
03
Nickel
03
Barium
03
Barium
03
Chromium
03
Barium
03
Barium
03
Arsenic
03
Arsenic
03
Arsenic
03
Arsenic
03
Fluoride
03
Fluoride
03
Fluoride
03
Fluoride
03
Mercury
03
Mercury
03
Mercury
03
Mercury
03
Selenium
03
Selenium
03
Selenium
03
Selenium
03
Antimony, Total
03
Antimony, Total
03
Antimony, Total
03
Antimony, Total
03
Thallium, Total
03
Thallium, Total
03
Thallium, Total
03
Thallium, Total
03
Chromium
03
Chromium
03
Nickel
03
Cadmium
03
Cadmium
03
Cadmium
03
Surface Water Treatment Rule
36
Surface Water Treatment Rule
36
Chlorine
27
Chlorine
27
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Surface Water Treatment Rule
36
Surface Water Treatment Rule
36
Chlorine
27
Chlorine
27
2022(124)
ETHYLENE DIBROMIDE
03
ETHYLENE DIBROMIDE
03
ETHYLENE DIBROMIDE
03
ETHYLENE DIBROMIDE
03
Hexachlorocyclopentadiene
03
Hexachlorocyclopentadiene
03
Hexachlorocyclopentadiene
03
Hexachlorocyclopentadiene
03
2,4-D
03
2,4-D
03
2,4-D
03
2,4-D
03
Dalapon
03
Dalapon
03
Dalapon
03
Dalapon
03
Diquat
03
Diquat
03
Diquat
03
Diquat
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
LASSO
03
LASSO
03
LASSO
03
LASSO
03
Pentachlorophenol
03
Pentachlorophenol
03
Pentachlorophenol
03
Pentachlorophenol
03
Atrazine
03
Atrazine
03
Atrazine
03
Atrazine
03
Methoxychlor
03
Methoxychlor
03
Methoxychlor
03
Methoxychlor
03
Toxaphene
03
Toxaphene
03
Toxaphene
03
Toxaphene
03
Endothall
03
Endothall
03
Endothall
03
Endothall
03
Glyphosate
03
Glyphosate
03
Glyphosate
03
Glyphosate
03
OXAMYL
03
OXAMYL
03
OXAMYL
03
OXAMYL
03
Picloram
03
Picloram
03
Picloram
03
Picloram
03
Dinoseb
03
Dinoseb
03
Dinoseb
03
Dinoseb
03
Carbofuran
03
Carbofuran
03
Carbofuran
03
Carbofuran
03
Heptachlor
03
Heptachlor
03
Heptachlor
03
Heptachlor
03
Heptachlor epoxide
03
Heptachlor epoxide
03
Heptachlor epoxide
03
Heptachlor epoxide
03
2,4,5-TP
03
2,4,5-TP
03
2,4,5-TP
03
2,4,5-TP
03
Total Polychlorinated Biphenyls (PCB)
03
Total Polychlorinated Biphenyls (PCB)
03
Total Polychlorinated Biphenyls (PCB)
03
Total Polychlorinated Biphenyls (PCB)
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
Chlordane
03
Chlordane
03
Chlordane
03
Chlordane
03
Benzo(a)pyrene
03
BHC-GAMMA
03
BHC-GAMMA
03
BHC-GAMMA
03
BHC-GAMMA
03
Benzo(a)pyrene
03
Benzo(a)pyrene
03
Benzo(a)pyrene
03
HEXACHLOROBENZENE
03
HEXACHLOROBENZENE
03
HEXACHLOROBENZENE
03
HEXACHLOROBENZENE
03
Di(2-ethylhexyl) adipate
03
Di(2-ethylhexyl) adipate
03
Di(2-ethylhexyl) adipate
03
Di(2-ethylhexyl) adipate
03
Endrin
03
Endrin
03
Endrin
03
Endrin
03
Nitrite
03
Nitrate
03
Nitrite
03
Nitrite
03
Nitrite
03
Nitrate
03
Nitrate
03
Nitrate
03
2021(8)
Asbestos
03
Asbestos
03
Asbestos
03
Asbestos
03
Asbestos
03
Asbestos
03
Asbestos
03
Asbestos
03
How Does This Compare?
JOHNSTOWN (15907) has 215 recorded violations, none of which are health-based. All violations have been resolved, which is a positive sign for current water quality. Consider testing your tap water independently for added peace of mind.
Recommended Water Filters
Based on the contaminants detected in your area, these filter types may help improve your water quality.
Reverse Osmosis System
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.