Water Quality in LEWISTON, ID (83501)

EPA violation data for public water systems serving ZIP code 83501.

281

Total Violations

Health-Based

214

Monitoring / Reporting

259

Resolved

What does this mean?

259 of 281 violations have been resolved. 67 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 214 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: 41 Population served: 40,827

Violations Detail (281 total)

Contaminant	Category	MCL Limit	Measured	Date	Status	Health Effects
Groundwater Rule	Monitoring	N/A	N/A	Aug 31, 2025	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Jul 18, 2025	Active	N/A
Groundwater Rule	Monitoring	N/A	N/A	Jul 18, 2025	Active	N/A
Groundwater Rule	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Groundwater 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
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Nitrate	Health-Based	N/A	11	Jun 30, 2025	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Groundwater Rule	Monitoring	N/A	N/A	May 31, 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
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
Groundwater Rule	Monitoring	N/A	N/A	May 31, 2025	Resolved	N/A
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
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2025	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Apr 30, 2025	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Apr 30, 2025	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jan 2, 2025	Active	N/A
Public Notice	Monitoring	N/A	N/A	Jan 2, 2025	Active	N/A
Public Notice	Monitoring	N/A	N/A	Jan 2, 2025	Active	N/A
Public Notice	Monitoring	N/A	N/A	Jan 2, 2025	Active	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Dec 29, 2024	Active	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Dec 29, 2024	Active	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Dec 29, 2024	Active	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Dec 29, 2024	Active	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	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
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	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
Revised Total Coliform Rule	Health-Based	N/A	N/A	Oct 1, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Oct 1, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Oct 1, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Oct 1, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Oct 1, 2024	Resolved	N/A
Chlorine	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	Eye and nose irritation; stomach discomfort
Groundwater Rule	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	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
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2024	Resolved	N/A
E. COLI	Monitoring	0	N/A	Jun 25, 2024	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jun 25, 2024	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jun 25, 2024	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	May 31, 2024	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	May 31, 2024	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	May 31, 2024	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Revised Total Coliform Rule	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
Revised Total Coliform Rule	Health-Based	N/A	N/A	Apr 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Apr 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Apr 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Apr 30, 2024	Resolved	N/A
E. COLI	Monitoring	0	N/A	Feb 29, 2024	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Feb 29, 2024	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Feb 29, 2024	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
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	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
E. COLI	Monitoring	0	N/A	Jan 31, 2024	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jan 31, 2024	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jan 31, 2024	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 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
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
Lead and Copper Rule	Monitoring	N/A	N/A	Dec 29, 2023	Active	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Dec 29, 2023	Active	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Oct 1, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Oct 1, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Oct 1, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Oct 1, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Oct 1, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jul 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jul 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jul 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jul 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jul 31, 2023	Resolved	N/A
E. COLI	Monitoring	0	N/A	May 6, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	May 6, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	May 6, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
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	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	Health-Based	N/A	N/A	Apr 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Mar 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Mar 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Mar 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Mar 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
Groundwater Rule	Monitoring	N/A	N/A	Jan 31, 2023	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Jan 31, 2023	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Jan 31, 2023	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Dec 31, 2022	Active	N/A
TTHM	Monitoring	N/A	N/A	Dec 31, 2022	Active	N/A
Total Haloacetic Acids (HAA5)	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
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
Chlorine	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	Eye and nose irritation; stomach discomfort
Lead and Copper Rule	Monitoring	N/A	N/A	Dec 29, 2022	Active	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Dec 29, 2022	Active	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Dec 29, 2022	Active	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Dec 29, 2022	Active	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	Nov 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Nov 30, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Nov 20, 2022	Active	N/A
Public Notice	Monitoring	N/A	N/A	Nov 20, 2022	Active	N/A
Surface Water Treatment Rule	Health-Based	N/A	N/A	Oct 31, 2022	Resolved	N/A
Surface Water Treatment Rule	Health-Based	N/A	N/A	Oct 31, 2022	Resolved	N/A
Surface Water Treatment Rule	Health-Based	N/A	N/A	Oct 31, 2022	Resolved	N/A
Surface Water Treatment Rule	Health-Based	N/A	N/A	Oct 31, 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
Lead and Copper Rule	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Surface Water Treatment Rule	Health-Based	N/A	N/A	Sep 30, 2022	Resolved	N/A
Surface Water Treatment Rule	Health-Based	N/A	N/A	Sep 30, 2022	Resolved	N/A
Surface Water Treatment Rule	Health-Based	N/A	N/A	Sep 30, 2022	Resolved	N/A
Surface Water Treatment Rule	Health-Based	N/A	N/A	Sep 30, 2022	Resolved	N/A
Surface Water Treatment Rule	Health-Based	N/A	N/A	Jul 31, 2022	Resolved	N/A
Surface Water Treatment Rule	Health-Based	N/A	N/A	Jul 31, 2022	Resolved	N/A
Surface Water Treatment Rule	Health-Based	N/A	N/A	Jul 31, 2022	Resolved	N/A
Nitrate	Monitoring	N/A	N/A	Jun 30, 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	Jun 30, 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	Jun 30, 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	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
Nitrate	Monitoring	N/A	N/A	Jun 30, 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	Jun 30, 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	Jun 30, 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	Jun 30, 2022	Resolved	Eye and nose irritation; stomach discomfort
Groundwater Rule	Monitoring	N/A	N/A	Apr 30, 2022	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Apr 30, 2022	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Apr 30, 2022	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Mar 31, 2022	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Mar 31, 2022	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Mar 31, 2022	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Mar 31, 2022	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Mar 31, 2022	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Mar 31, 2022	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Mar 31, 2022	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Mar 31, 2022	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Mar 31, 2022	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Mar 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 28, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 28, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 28, 2022	Resolved	N/A
E. COLI	Monitoring	0	N/A	Feb 15, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Feb 15, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Feb 15, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
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
o-Dichlorobenzene	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Toluene	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
o-Dichlorobenzene	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
cis-1,2-Dichloroethylene	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
cis-1,2-Dichloroethylene	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
cis-1,2-Dichloroethylene	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Benzene	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Anemia; decrease in blood platelets; increased risk of cancer
Benzene	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Anemia; decrease in blood platelets; increased risk of cancer
Benzene	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Anemia; decrease in blood platelets; increased risk of cancer
Xylenes, Total	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Xylenes, Total	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Xylenes, Total	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Vinyl chloride	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Increased risk of cancer
Vinyl chloride	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Increased risk of cancer
Vinyl chloride	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Increased risk of cancer
Trichloroethylene	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Liver problems; increased risk of cancer
o-Dichlorobenzene	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Trichloroethylene	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Liver problems; increased risk of cancer
trans-1,2-Dichloroethylene	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
trans-1,2-Dichloroethylene	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
trans-1,2-Dichloroethylene	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
1,2-Dichloroethane	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
1,2-Dichloroethane	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
1,2-Dichloroethane	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
1,1,1-Trichloroethane	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
1,1,1-Trichloroethane	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
1,1,1-Trichloroethane	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
CHLOROBENZENE	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
CHLOROBENZENE	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
CHLOROBENZENE	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Carbon tetrachloride	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Liver problems; increased risk of cancer
Carbon tetrachloride	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Liver problems; increased risk of cancer
Carbon tetrachloride	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Liver problems; increased risk of cancer
1,2,4-Trichlorobenzene	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
1,2,4-Trichlorobenzene	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
1,2,4-Trichlorobenzene	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
p-Dichlorobenzene	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
p-Dichlorobenzene	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
p-Dichlorobenzene	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
1,1-Dichloroethylene	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
1,1-Dichloroethylene	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
1,1-Dichloroethylene	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
1,2-Dichloropropane	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
1,2-Dichloropropane	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
1,2-Dichloropropane	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
1,1,2-Trichloroethane	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
1,1,2-Trichloroethane	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
1,1,2-Trichloroethane	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
DICHLOROMETHANE	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Toluene	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Toluene	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Ethylbenzene	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Ethylbenzene	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Ethylbenzene	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Styrene	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Styrene	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Styrene	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Tetrachloroethylene	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Liver problems; increased risk of cancer
Tetrachloroethylene	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Liver problems; increased risk of cancer
Tetrachloroethylene	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Liver problems; increased risk of cancer
DICHLOROMETHANE	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
DICHLOROMETHANE	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Trichloroethylene	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	Liver problems; increased risk of cancer
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	Health-Based	N/A	11	Dec 31, 2021	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Health-Based	N/A	11	Dec 31, 2021	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Groundwater Rule	Health-Based	N/A	N/A	Dec 31, 2021	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Dec 31, 2021	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Dec 31, 2021	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Dec 31, 2021	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Dec 31, 2021	Resolved	N/A
Nitrate	Health-Based	N/A	11	Dec 31, 2021	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Health-Based	N/A	11	Dec 31, 2021	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Lead and Copper Rule	Monitoring	N/A	N/A	Dec 29, 2021	Active	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Dec 29, 2021	Active	N/A
Groundwater Rule	Health-Based	N/A	N/A	Nov 30, 2021	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Nov 30, 2021	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Nov 30, 2021	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Nov 30, 2021	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Oct 31, 2021	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Oct 31, 2021	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Oct 31, 2021	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Oct 31, 2021	Resolved	N/A
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
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2021	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Jul 31, 2021	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Jul 31, 2021	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Jul 31, 2021	Resolved	N/A
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	Jun 30, 2021	Resolved	Eye and nose irritation; stomach discomfort
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2021	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Apr 30, 2021	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Apr 30, 2021	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Apr 30, 2021	Resolved	N/A

Lead & Copper Levels

Violation Timeline

2025(24)

Groundwater Rule

Aug 31Resolved

Groundwater Rule

Jul 18Active

Groundwater Rule

Jul 18Active

Groundwater Rule

Jun 30Resolved

Groundwater Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Nitrate

Jun 30Resolved

Groundwater Rule

May 31Resolved

Chlorine

May 31Resolved

Chlorine

May 31Resolved

Revised Total Coliform Rule

May 31Resolved

Revised Total Coliform Rule

May 31Resolved

Groundwater Rule

May 31Resolved

Chlorine

Apr 30Resolved

Chlorine

Apr 30Resolved

Revised Total Coliform Rule

Apr 30Resolved

Revised Total Coliform Rule

Apr 30Resolved

Groundwater Rule

Apr 30Resolved

Groundwater Rule

Apr 30Resolved

Public Notice

Jan 2Active

Public Notice

Jan 2Active

Public Notice

Jan 2Active

Public Notice

Jan 2Active

2024(59)

Lead and Copper Rule

Dec 29Active

Lead and Copper Rule

Dec 29Active

Lead and Copper Rule

Dec 29Active

Lead and Copper Rule

Dec 29Active

Revised Total Coliform Rule

Oct 31Resolved

Revised Total Coliform Rule

Oct 31Resolved