Water Quality in PRESCOTT, AZ (86301)

EPA violation data for public water systems serving ZIP code 86301.

193

Total Violations

Health-Based

185

Monitoring / Reporting

183

Resolved

What does this mean?

183 of 193 violations have been resolved. 8 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 185 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: 51 Population served: 45,319

Violations Detail (193 total)

Contaminant	Category	MCL Limit	Measured	Date	Status	Health Effects
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	Resolved	N/A
Chlorine	Monitoring	N/A	N/A	May 31, 2025	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	May 31, 2025	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Apr 30, 2025	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Apr 30, 2025	Resolved	Eye and nose irritation; stomach discomfort
Arsenic	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Chlorine	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	Eye and nose irritation; stomach discomfort
Public Notice	Monitoring	N/A	N/A	Mar 24, 2025	Active	N/A
Groundwater Rule	Health-Based	N/A	N/A	Jan 2, 2025	Active	N/A
Groundwater Rule	Health-Based	N/A	N/A	Jan 2, 2025	Active	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Dec 31, 2024	Active	N/A
Chlorine	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	Eye and nose irritation; stomach discomfort
Public Notice	Monitoring	N/A	N/A	Dec 19, 2024	Active	N/A
Public Notice	Monitoring	N/A	N/A	Dec 19, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Dec 19, 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	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	Oct 31, 2024	Resolved	N/A
LEAD AND COPPER RULE REVISIONS	Monitoring	N/A	N/A	Oct 16, 2024	Active	N/A
LEAD AND COPPER RULE REVISIONS	Monitoring	N/A	N/A	Oct 16, 2024	Active	N/A
LEAD AND COPPER RULE REVISIONS	Health-Based	N/A	N/A	Oct 16, 2024	Active	N/A
LEAD AND COPPER RULE REVISIONS	Health-Based	N/A	N/A	Oct 16, 2024	Active	N/A
LEAD AND COPPER RULE REVISIONS	Monitoring	N/A	N/A	Oct 16, 2024	Resolved	N/A
LEAD AND COPPER RULE REVISIONS	Monitoring	N/A	N/A	Oct 16, 2024	Resolved	N/A
LEAD AND COPPER RULE REVISIONS	Monitoring	N/A	N/A	Oct 16, 2024	Resolved	N/A
LEAD AND COPPER RULE REVISIONS	Monitoring	N/A	N/A	Oct 16, 2024	Resolved	N/A
LEAD AND COPPER RULE REVISIONS	Health-Based	N/A	N/A	Oct 16, 2024	Resolved	N/A
LEAD AND COPPER RULE REVISIONS	Health-Based	N/A	N/A	Oct 16, 2024	Resolved	N/A
LEAD AND COPPER RULE REVISIONS	Health-Based	N/A	N/A	Oct 16, 2024	Resolved	N/A
LEAD AND COPPER RULE REVISIONS	Health-Based	N/A	N/A	Oct 16, 2024	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Oct 1, 2024	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Oct 1, 2024	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Oct 1, 2024	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Oct 1, 2024	Resolved	N/A
Chlorine	Monitoring	N/A	N/A	May 31, 2024	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	May 31, 2024	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	May 31, 2024	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	May 31, 2024	Resolved	Eye and nose irritation; stomach discomfort
Arsenic	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Public Notice	Monitoring	N/A	N/A	Feb 15, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Feb 15, 2024	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
Chlorine	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Eye and nose irritation; stomach discomfort
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
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
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Oct 1, 2022	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Oct 1, 2022	Resolved	N/A
1,1-Dichloroethylene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Ethylbenzene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Radium-228	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Increased risk of cancer
Radium-228	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Increased risk of cancer
Radium-228	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Increased risk of cancer
Vinyl chloride	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Increased risk of cancer
Vinyl chloride	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Increased risk of cancer
Vinyl chloride	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Increased risk of cancer
Vinyl chloride	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Increased risk of cancer
Carbon tetrachloride	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Liver problems; increased risk of cancer
Carbon tetrachloride	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Liver problems; increased risk of cancer
Carbon tetrachloride	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Liver problems; increased risk of cancer
Carbon tetrachloride	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Liver problems; increased risk of cancer
Trichloroethylene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Liver problems; increased risk of cancer
Trichloroethylene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Liver problems; increased risk of cancer
Trichloroethylene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Liver problems; increased risk of cancer
Trichloroethylene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Liver problems; increased risk of cancer
Benzene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Anemia; decrease in blood platelets; increased risk of cancer
Benzene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Anemia; decrease in blood platelets; increased risk of cancer
Benzene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Anemia; decrease in blood platelets; increased risk of cancer
Benzene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Anemia; decrease in blood platelets; increased risk of cancer
Toluene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
1,2,4-Trichlorobenzene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
1,2,4-Trichlorobenzene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
1,2,4-Trichlorobenzene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Gross Alpha, Excl. Radon and U	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Gross Alpha, Excl. Radon and U	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Gross Alpha, Excl. Radon and U	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Gross Alpha, Excl. Radon and U	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Radium-228	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Increased risk of cancer
Combined Uranium	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Combined Uranium	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Combined Uranium	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Combined Radium (-226 and -228)	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Combined Radium (-226 and -228)	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Combined Radium (-226 and -228)	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Combined Radium (-226 and -228)	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
DICHLOROMETHANE	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
DICHLOROMETHANE	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
DICHLOROMETHANE	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
DICHLOROMETHANE	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
o-Dichlorobenzene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
o-Dichlorobenzene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
o-Dichlorobenzene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
o-Dichlorobenzene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
p-Dichlorobenzene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
p-Dichlorobenzene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
p-Dichlorobenzene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
p-Dichlorobenzene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
1,1-Dichloroethylene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
1,1-Dichloroethylene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
CHLOROBENZENE	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
1,1-Dichloroethylene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
trans-1,2-Dichloroethylene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
trans-1,2-Dichloroethylene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
trans-1,2-Dichloroethylene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
trans-1,2-Dichloroethylene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
1,1,1-Trichloroethane	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
1,1,1-Trichloroethane	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
1,1,1-Trichloroethane	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
1,1,1-Trichloroethane	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
1,2-Dichloropropane	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
1,2-Dichloropropane	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
1,2-Dichloropropane	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
1,2-Dichloropropane	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
1,1,2-Trichloroethane	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
1,1,2-Trichloroethane	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
1,1,2-Trichloroethane	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
1,1,2-Trichloroethane	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Styrene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Styrene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Styrene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Styrene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Xylenes, Total	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Xylenes, Total	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Xylenes, Total	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Xylenes, Total	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Radium-226	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Increased risk of cancer
Radium-226	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Increased risk of cancer
1,2-Dichloroethane	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
1,2-Dichloroethane	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
1,2-Dichloroethane	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
1,2-Dichloroethane	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
1,2,4-Trichlorobenzene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
CHLOROBENZENE	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Toluene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
CHLOROBENZENE	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Toluene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Toluene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
cis-1,2-Dichloroethylene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
cis-1,2-Dichloroethylene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
cis-1,2-Dichloroethylene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
cis-1,2-Dichloroethylene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
CHLOROBENZENE	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Radium-226	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Increased risk of cancer
Radium-226	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Increased risk of cancer
Ethylbenzene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Tetrachloroethylene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Liver problems; increased risk of cancer
Tetrachloroethylene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Liver problems; increased risk of cancer
Tetrachloroethylene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Liver problems; increased risk of cancer
Tetrachloroethylene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Liver problems; increased risk of cancer
Ethylbenzene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Ethylbenzene	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Combined Uranium	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Gross Alpha, Excl. Radon and U	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Gross Alpha, Excl. Radon and U	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2022	Resolved	N/A
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
Gross Alpha, Excl. Radon and U	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Gross Alpha, Excl. Radon and U	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Radium-228	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Increased risk of cancer
Radium-228	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Increased risk of cancer
Radium-226	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Increased risk of cancer
Radium-226	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Increased risk of cancer
Combined Radium (-226 and -228)	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Combined Radium (-226 and -228)	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Combined Uranium	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Combined Uranium	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
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
Consumer Confidence Rule	Monitoring	N/A	N/A	Oct 1, 2021	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Oct 1, 2021	Resolved	N/A
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(15)

Consumer Confidence Rule

Jun 30Active

Consumer Confidence Rule

Jun 30Resolved

Chlorine

May 31Resolved

Chlorine

May 31Resolved

Chlorine

Apr 30Resolved

Chlorine

Apr 30Resolved

Arsenic

Mar 31Resolved

Arsenic

Mar 31Resolved

Arsenic

Mar 31Resolved

Arsenic

Mar 31Resolved

Chlorine

Mar 31Resolved

Chlorine

Mar 31Resolved

Public Notice

Mar 24Active

Groundwater Rule

Jan 2Active

Groundwater Rule

Jan 2Active

2024(36)

Lead and Copper Rule

Dec 31Active

Chlorine

Dec 31Resolved

Chlorine

Dec 31Resolved

Public Notice

Dec 19Active

Public Notice

Dec 19Resolved

Public Notice

Dec 19Resolved

Revised Total Coliform Rule

Oct 31Resolved

Revised Total Coliform Rule

Oct 31Resolved

Revised Total Coliform Rule

Oct 31Resolved

Revised Total Coliform Rule

Oct 31Resolved