Water Quality in San Carlos, AZ (85550)

EPA violation data for public water systems serving ZIP code 85550.

379

Total Violations

Health-Based

324

Monitoring / Reporting

352

Resolved

What does this mean?

352 of 379 violations have been resolved. 55 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 324 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.

Water systems: 18 Population served: 26,213

Violations Detail (379 total)

Contaminant	Category	MCL Limit	Measured	Date	Status	Health Effects
Groundwater Rule	Health-Based	N/A	N/A	Sep 20, 2025	Active	N/A
Groundwater Rule	Health-Based	N/A	N/A	Jul 30, 2025	Active	N/A
Groundwater Rule	Health-Based	N/A	N/A	Jul 30, 2025	Active	N/A
Groundwater Rule	Health-Based	N/A	N/A	Jul 30, 2025	Active	N/A
Chlorine	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	Eye and nose irritation; stomach discomfort
Styrene	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Vinyl chloride	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	Increased risk of cancer
DICHLOROMETHANE	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
trans-1,2-Dichloroethylene	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
o-Dichlorobenzene	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Xylenes, Total	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Ethylbenzene	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Carbon tetrachloride	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	Liver problems; increased risk of cancer
Trichloroethylene	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	Liver problems; increased risk of cancer
1,2-Dichloroethane	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
1,1,1-Trichloroethane	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
p-Dichlorobenzene	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Tetrachloroethylene	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	Liver problems; increased risk of cancer
Combined Uranium	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Combined Radium (-226 and -228)	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
1,2-Dichloropropane	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
1,2,4-Trichlorobenzene	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Toluene	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Gross Alpha, Excl. Radon and U	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
1,1-Dichloroethylene	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
1,1,2-Trichloroethane	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Benzene	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	Anemia; decrease in blood platelets; increased risk of cancer
CHLOROBENZENE	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
cis-1,2-Dichloroethylene	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Chlorine	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	Eye and nose irritation; stomach discomfort
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Chlorine	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	Eye and nose irritation; stomach discomfort
Public Notice	Monitoring	N/A	N/A	May 31, 2025	Active	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2025	Resolved	N/A
Surface Water Treatment Rule	Health-Based	N/A	N/A	May 27, 2025	Resolved	N/A
Surface Water Treatment Rule	Health-Based	N/A	N/A	May 27, 2025	Resolved	N/A
Surface Water Treatment Rule	Health-Based	N/A	N/A	May 27, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 28, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 28, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 28, 2025	Resolved	N/A
Arsenic	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	Skin damage; circulatory system problems; increased risk of cancer
LEAD AND COPPER RULE REVISIONS	Monitoring	N/A	N/A	Nov 15, 2024	Active	N/A
LEAD AND COPPER RULE REVISIONS	Monitoring	N/A	N/A	Nov 15, 2024	Active	N/A
LEAD AND COPPER RULE REVISIONS	Monitoring	N/A	N/A	Nov 15, 2024	Active	N/A
LEAD AND COPPER RULE REVISIONS	Monitoring	N/A	N/A	Nov 15, 2024	Active	N/A
LEAD AND COPPER RULE REVISIONS	Monitoring	N/A	N/A	Nov 15, 2024	Active	N/A
LEAD AND COPPER RULE REVISIONS	Monitoring	N/A	N/A	Nov 15, 2024	Active	N/A
LEAD AND COPPER RULE REVISIONS	Monitoring	N/A	N/A	Nov 15, 2024	Active	N/A
LEAD AND COPPER RULE REVISIONS	Monitoring	N/A	N/A	Nov 15, 2024	Active	N/A
LEAD AND COPPER RULE REVISIONS	Monitoring	N/A	N/A	Nov 15, 2024	Active	N/A
LEAD AND COPPER RULE REVISIONS	Monitoring	N/A	N/A	Nov 15, 2024	Active	N/A
LEAD AND COPPER RULE REVISIONS	Monitoring	N/A	N/A	Nov 15, 2024	Active	N/A
LEAD AND COPPER RULE REVISIONS	Monitoring	N/A	N/A	Nov 15, 2024	Active	N/A
LEAD AND COPPER RULE REVISIONS	Monitoring	N/A	N/A	Nov 15, 2024	Active	N/A
LEAD AND COPPER RULE REVISIONS	Monitoring	N/A	N/A	Nov 15, 2024	Active	N/A
LEAD AND COPPER RULE REVISIONS	Monitoring	N/A	N/A	Nov 15, 2024	Active	N/A
LEAD AND COPPER RULE REVISIONS	Monitoring	N/A	N/A	Nov 15, 2024	Active	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 31, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 31, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Chlorine	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	Eye and nose irritation; stomach discomfort
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jul 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2024	Resolved	N/A
Chlorine	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	Eye and nose irritation; stomach discomfort
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Apr 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2024	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Apr 18, 2024	Active	N/A
Chlorine	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	Eye and nose irritation; stomach discomfort
Gross Alpha, Excl. Radon and U	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
Combined Uranium	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
Combined Radium (-226 and -228)	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
Chlorine	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	Eye and nose irritation; stomach discomfort
Public Notice	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
Chlorine	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	Eye and nose irritation; stomach discomfort
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 29, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Feb 29, 2024	Resolved	N/A
Public Notice	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	Health-Based	N/A	N/A	Jan 26, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jan 26, 2024	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Jan 18, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jan 18, 2024	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Jan 18, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jan 18, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jan 18, 2024	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Jan 18, 2024	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Jan 18, 2024	Resolved	N/A
Methoxychlor	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Di(2-ethylhexyl) phthalate	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,1-Dichloroethylene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Tetrachloroethylene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Liver problems; increased risk of cancer
2,3,7,8-TCDD	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Dinoseb	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Atrazine	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Cardiovascular system or reproductive problems
Vinyl chloride	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Increased risk of cancer
Trichloroethylene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Liver problems; increased risk of cancer
Hexachlorocyclopentadiene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Chlorine	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Eye and nose irritation; stomach discomfort
Endrin	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Ethylbenzene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Glyphosate	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Benzene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Anemia; decrease in blood platelets; increased risk of cancer
Combined Radium (-226 and -228)	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Dalapon	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Picloram	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Carbon tetrachloride	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Liver problems; increased risk of cancer
Revised Total Coliform Rule	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Arsenic	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Skin damage; circulatory system problems; increased risk of cancer
BHC-GAMMA	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Toxaphene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Diquat	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Endothall	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Di(2-ethylhexyl) adipate	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
OXAMYL	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Simazine	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
2,4-D	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Carbofuran	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
LASSO	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Heptachlor	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Heptachlor epoxide	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
2,4,5-TP	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
HEXACHLOROBENZENE	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Benzo(a)pyrene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Pentachlorophenol	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,2,4-Trichlorobenzene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
cis-1,2-Dichloroethylene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Total Polychlorinated Biphenyls (PCB)	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,2-DIBROMO-3-CHLOROPROPANE	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
ETHYLENE DIBROMIDE	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Xylenes, Total	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Chlordane	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
DICHLOROMETHANE	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
o-Dichlorobenzene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
p-Dichlorobenzene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,2-Dichloroethane	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,1,1-Trichloroethane	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,2-Dichloropropane	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,1,2-Trichloroethane	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Toluene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Combined Uranium	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Styrene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Gross Alpha, Excl. Radon and U	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
trans-1,2-Dichloroethylene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
CHLOROBENZENE	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Chlorine	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Eye and nose irritation; stomach discomfort
Arsenic	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Revised Total Coliform 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
Public Notice	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Chlorine	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Eye and nose irritation; stomach discomfort
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
Revised Total Coliform Rule	Monitoring	N/A	N/A	Nov 30, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Nov 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 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
Revised Total Coliform 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
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jul 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	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
Revised Total Coliform Rule	Health-Based	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
Groundwater Rule	Health-Based	N/A	N/A	Jun 29, 2023	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Jun 29, 2023	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Jun 29, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	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
Revised Total Coliform Rule	Health-Based	N/A	N/A	May 12, 2023	Resolved	N/A
Revised Total Coliform 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	Health-Based	N/A	N/A	Apr 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Apr 30, 2023	Resolved	N/A
Revised Total Coliform Rule	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
Public Notice	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
Public Notice	Monitoring	N/A	N/A	Mar 3, 2023	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Mar 3, 2023	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Mar 3, 2023	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Mar 3, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Mar 3, 2023	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Mar 3, 2023	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Mar 3, 2023	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Mar 3, 2023	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Mar 3, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Mar 3, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Mar 3, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Mar 3, 2023	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Mar 3, 2023	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Mar 3, 2023	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Mar 3, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Mar 3, 2023	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Mar 3, 2023	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Mar 3, 2023	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Mar 3, 2023	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Mar 3, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Mar 3, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Mar 3, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Mar 3, 2023	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Mar 3, 2023	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Mar 3, 2023	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Mar 3, 2023	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Mar 3, 2023	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Mar 3, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Mar 3, 2023	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Mar 3, 2023	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Mar 3, 2023	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Mar 3, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Mar 3, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Mar 3, 2023	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Mar 3, 2023	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Mar 3, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Mar 3, 2023	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Mar 3, 2023	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Mar 3, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 28, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Feb 28, 2023	Active	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jan 31, 2023	Active	N/A
Public Notice	Monitoring	N/A	N/A	Jan 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jan 31, 2023	Active	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2023	Resolved	N/A
Chlorine	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Eye and nose irritation; stomach discomfort
TTHM	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
Chlorine	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Eye and nose irritation; stomach discomfort
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	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
Chlorine	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Eye and nose irritation; stomach discomfort
Revised Total Coliform Rule	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
Chlorine	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Eye and nose irritation; stomach discomfort
Public Notice	Monitoring	N/A	N/A	Dec 20, 2022	Active	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Dec 20, 2022	Resolved	N/A
E. COLI	Monitoring	0	N/A	Nov 30, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Nov 30, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Revised Total Coliform Rule	Monitoring	N/A	N/A	Nov 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Nov 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Chlorine	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	Eye and nose irritation; stomach discomfort
Groundwater Rule	Health-Based	N/A	N/A	Aug 31, 2022	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Aug 31, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 31, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 31, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2022	Resolved	N/A
E. COLI	Monitoring	0	N/A	Jul 31, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 31, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Public Notice	Monitoring	N/A	N/A	Jul 31, 2022	Active	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2022	Resolved	N/A
E. COLI	Monitoring	0	N/A	Jul 31, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2022	Resolved	N/A
Arsenic	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Consumer Confidence Rule	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Arsenic	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Consumer Confidence Rule	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Chlorine	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Eye and nose irritation; stomach discomfort
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
Chlorine	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Eye and nose irritation; stomach discomfort
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
E. COLI	Monitoring	0	N/A	May 31, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	May 31, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	May 31, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Apr 30, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Apr 30, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Apr 30, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Apr 30, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Chlorine	Monitoring	N/A	N/A	Mar 31, 2022	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Mar 31, 2022	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Mar 31, 2022	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Mar 31, 2022	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Mar 31, 2022	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Mar 31, 2022	Resolved	Eye and nose irritation; stomach discomfort
Lead and Copper Rule	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Nitrate	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Chlorine	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Eye and nose irritation; stomach discomfort
Nitrate	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
E. COLI	Monitoring	0	N/A	Nov 30, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Nov 30, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Revised Total Coliform Rule	Monitoring	N/A	N/A	Nov 30, 2021	Resolved	N/A
E. COLI	Monitoring	0	N/A	Oct 31, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Oct 31, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Sep 30, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Sep 30, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Chlorine	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	Eye and nose irritation; stomach discomfort
E. COLI	Monitoring	0	N/A	Sep 30, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Sep 30, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
E. COLI	Monitoring	0	N/A	Jun 30, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Public Notice	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jun 30, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
E. COLI	Monitoring	0	N/A	Jun 30, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Chlorine	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Mar 31, 2021	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Mar 31, 2021	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Mar 31, 2021	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Mar 31, 2021	Resolved	Eye and nose irritation; stomach discomfort

Lead & Copper Levels

Violation Timeline

2025(42)

Groundwater Rule

Sep 20Active

Groundwater Rule

Jul 30Active

Groundwater Rule

Jul 30Active

Groundwater Rule

Jul 30Active

Chlorine

Jun 30Resolved

Styrene

Jun 30Resolved

Vinyl chloride

Jun 30Resolved

DICHLOROMETHANE

Jun 30Resolved

trans-1,2-Dichloroethylene

Jun 30Resolved

o-Dichlorobenzene

Jun 30Resolved

Xylenes, Total

Jun 30Resolved

Ethylbenzene

Jun 30Resolved

Carbon tetrachloride

Jun 30Resolved

Trichloroethylene

Jun 30Resolved

1,2-Dichloroethane

Jun 30Resolved

1,1,1-Trichloroethane

Jun 30Resolved

p-Dichlorobenzene

Jun 30Resolved

Tetrachloroethylene

Jun 30Resolved

Combined Uranium

Jun 30Resolved

Combined Radium (-226 and -228)

Jun 30Resolved

1,2-Dichloropropane

Jun 30Resolved

1,2,4-Trichlorobenzene

Jun 30Resolved

Toluene

Jun 30Resolved

Gross Alpha, Excl. Radon and U

Jun 30Resolved

1,1-Dichloroethylene

Jun 30Resolved

1,1,2-Trichloroethane

Jun 30Resolved

Benzene

Jun 30Resolved

CHLOROBENZENE

Jun 30Resolved

cis-1,2-Dichloroethylene

Jun 30Resolved

Chlorine

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Chlorine

Jun 30Resolved

Public Notice

May 31Active

Revised Total Coliform Rule

May 31Resolved

Revised Total Coliform Rule

May 31Resolved

Surface Water Treatment Rule

May 27Resolved

Surface Water Treatment Rule

May 27Resolved

Surface Water Treatment Rule

May 27Resolved

Revised Total Coliform Rule

Feb 28Resolved

Revised Total Coliform Rule

Feb 28Resolved

Revised Total Coliform Rule

Feb 28Resolved

2024(65)

Arsenic

Dec 31Resolved

Arsenic

Dec 31Resolved

Arsenic

Dec 31Resolved