Water Quality in BAYFIELD, CO (81122)

EPA violation data for public water systems serving ZIP code 81122.

251

Total Violations

Health-Based

216

Monitoring / Reporting

242

Resolved

What does this mean?

242 of 251 violations have been resolved. 35 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 216 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: 34 Population served: 7,409

Violations Detail (251 total)

Contaminant	Category	MCL Limit	Measured	Date	Status	Health Effects
1,1,2-Trichloroethane	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
1,2-Dichloroethane	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
CHLOROBENZENE	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
CHLOROBENZENE	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
CHLOROBENZENE	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
DICHLOROMETHANE	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
DICHLOROMETHANE	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
DICHLOROMETHANE	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-Dichloroethylene	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
Trichloroethylene	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
Trichloroethylene	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	Liver problems; increased risk of cancer
Tetrachloroethylene	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	Liver problems; increased risk of cancer
Tetrachloroethylene	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	Liver problems; increased risk of cancer
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
Benzene	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	Anemia; decrease in blood platelets; increased risk of cancer
Benzene	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	Anemia; decrease in blood platelets; increased risk of cancer
Consumer Confidence Rule	Monitoring	N/A	N/A	Jun 30, 2025	Active	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Jun 30, 2025	Active	N/A
1,2,4-Trichlorobenzene	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
1,2,4-Trichlorobenzene	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
cis-1,2-Dichloroethylene	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
o-Dichlorobenzene	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
o-Dichlorobenzene	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
o-Dichlorobenzene	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
p-Dichlorobenzene	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
p-Dichlorobenzene	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
p-Dichlorobenzene	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
1,1,1-Trichloroethane	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
1,2-Dichloropropane	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-Dichloropropane	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Toluene	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Toluene	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Toluene	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Styrene	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Ethylbenzene	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Ethylbenzene	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Ethylbenzene	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Styrene	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Styrene	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
Carbon tetrachloride	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
Vinyl chloride	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	Increased risk of cancer
Vinyl chloride	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	Increased risk of cancer
Vinyl chloride	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	Increased risk of cancer
Xylenes, Total	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Xylenes, Total	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Xylenes, Total	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
trans-1,2-Dichloroethylene	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
Carbon tetrachloride	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
Tetrachloroethylene	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	Liver problems; increased risk of cancer
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 11, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 11, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 11, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 11, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 11, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 11, 2025	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jun 1, 2025	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jun 1, 2025	Resolved	N/A
E. COLI	Monitoring	0	N/A	Apr 11, 2025	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Apr 11, 2025	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Apr 11, 2025	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
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
Public Notice	Monitoring	N/A	N/A	Sep 25, 2024	Active	N/A
Public Notice	Monitoring	N/A	N/A	Sep 1, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 1, 2024	Resolved	N/A
Surface Water Treatment Rule	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	N/A
Surface Water Treatment Rule	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	N/A
Surface Water Treatment Rule	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	N/A
Stage 1 Disinfectants and Disinfection Byproducts Rule	Health-Based	N/A	N/A	Jul 8, 2024	Resolved	N/A
Stage 1 Disinfectants and Disinfection Byproducts Rule	Health-Based	N/A	N/A	Jul 8, 2024	Resolved	N/A
Stage 1 Disinfectants and Disinfection Byproducts Rule	Health-Based	N/A	N/A	Jul 8, 2024	Resolved	N/A
Stage 1 Disinfectants and Disinfection Byproducts Rule	Health-Based	N/A	N/A	Jul 8, 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
Public Notice	Monitoring	N/A	N/A	Jun 1, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jun 1, 2024	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	May 31, 2024	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	May 31, 2024	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	May 31, 2024	Resolved	N/A
Surface Water Treatment Rule	Monitoring	N/A	N/A	May 31, 2024	Resolved	N/A
Surface Water Treatment Rule	Monitoring	N/A	N/A	May 31, 2024	Resolved	N/A
Surface Water Treatment Rule	Monitoring	N/A	N/A	May 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2024	Resolved	N/A
Surface Water Treatment Rule	Monitoring	N/A	N/A	Apr 30, 2024	Resolved	N/A
Surface Water Treatment Rule	Monitoring	N/A	N/A	Apr 30, 2024	Resolved	N/A
Surface Water Treatment Rule	Monitoring	N/A	N/A	Apr 30, 2024	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Apr 30, 2024	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Apr 30, 2024	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Apr 30, 2024	Resolved	N/A
Nitrate	Monitoring	N/A	N/A	Mar 31, 2024	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, 2024	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, 2024	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	Aug 25, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 25, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 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	Monitoring	N/A	N/A	May 31, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	May 23, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	May 23, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	May 23, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	May 10, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	May 10, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	May 10, 2023	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Health-Based	N/A	N/A	Mar 31, 2023	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Health-Based	N/A	N/A	Mar 31, 2023	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Health-Based	N/A	N/A	Mar 31, 2023	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Health-Based	N/A	N/A	Mar 31, 2023	Resolved	N/A
Nitrate	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
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
Public Notice	Monitoring	N/A	N/A	Feb 15, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Feb 15, 2023	Resolved	N/A
Surface Water Treatment Rule	Health-Based	N/A	N/A	Jan 31, 2023	Resolved	N/A
Surface Water Treatment Rule	Health-Based	N/A	N/A	Jan 31, 2023	Resolved	N/A
Surface Water Treatment Rule	Health-Based	N/A	N/A	Jan 31, 2023	Resolved	N/A
Surface Water Treatment Rule	Health-Based	N/A	N/A	Jan 31, 2023	Resolved	N/A
Surface Water Treatment Rule	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
Surface Water Treatment Rule	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
Surface Water Treatment Rule	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Dec 10, 2022	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Dec 10, 2022	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Dec 10, 2022	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Dec 10, 2022	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Dec 10, 2022	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Dec 10, 2022	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Dec 10, 2022	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Dec 10, 2022	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Dec 10, 2022	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Dec 10, 2022	Active	N/A
Groundwater Rule	Health-Based	N/A	N/A	Dec 10, 2022	Active	N/A
Groundwater Rule	Health-Based	N/A	N/A	Dec 10, 2022	Active	N/A
Groundwater Rule	Health-Based	N/A	N/A	Dec 10, 2022	Resolved	N/A
Surface Water Treatment Rule	Health-Based	N/A	N/A	Nov 30, 2022	Resolved	N/A
Surface Water Treatment Rule	Health-Based	N/A	N/A	Nov 30, 2022	Resolved	N/A
Surface Water Treatment Rule	Health-Based	N/A	N/A	Nov 30, 2022	Resolved	N/A
Surface Water Treatment Rule	Health-Based	N/A	N/A	Nov 30, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 11, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 11, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 11, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 9, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 9, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 9, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 21, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 21, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 21, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 11, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 11, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 11, 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	Health-Based	N/A	N/A	Jul 10, 2022	Active	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jul 10, 2022	Active	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jul 10, 2022	Active	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 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
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	May 31, 2022	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	May 31, 2022	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	May 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2022	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Apr 30, 2022	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Apr 30, 2022	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Apr 30, 2022	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Mar 31, 2022	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Mar 31, 2022	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Mar 31, 2022	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Feb 28, 2022	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Feb 28, 2022	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Feb 28, 2022	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Jan 31, 2022	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Jan 31, 2022	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Jan 31, 2022	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Jan 31, 2022	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	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
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Nov 30, 2021	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Nov 30, 2021	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Nov 30, 2021	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Oct 31, 2021	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Oct 31, 2021	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Oct 31, 2021	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2021	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Aug 31, 2021	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Aug 31, 2021	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Aug 31, 2021	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Jul 31, 2021	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Jul 31, 2021	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Jul 31, 2021	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jun 10, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jun 10, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jun 10, 2021	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	May 31, 2021	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	May 31, 2021	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	May 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2021	Resolved	N/A

Lead & Copper Levels

Violation Timeline

2025(76)

1,1,2-Trichloroethane

Jun 30Resolved

1,2-Dichloroethane

Jun 30Resolved

1,1,2-Trichloroethane

Jun 30Resolved

CHLOROBENZENE

Jun 30Resolved

CHLOROBENZENE

Jun 30Resolved

CHLOROBENZENE

Jun 30Resolved

DICHLOROMETHANE

Jun 30Resolved

DICHLOROMETHANE

Jun 30Resolved

DICHLOROMETHANE

Jun 30Resolved

1,1-Dichloroethylene

Jun 30Resolved

1,1-Dichloroethylene

Jun 30Resolved

1,1-Dichloroethylene

Jun 30Resolved

Trichloroethylene

Jun 30Resolved

Trichloroethylene

Jun 30Resolved

Trichloroethylene

Jun 30Resolved

Tetrachloroethylene

Jun 30Resolved

Tetrachloroethylene

Jun 30Resolved

1,1,2-Trichloroethane

Jun 30Resolved

Benzene

Jun 30Resolved

Benzene

Jun 30Resolved

Benzene

Jun 30Resolved

Consumer Confidence Rule

Jun 30Active

Consumer Confidence Rule

Jun 30Active

1,2,4-Trichlorobenzene

Jun 30Resolved

1,2,4-Trichlorobenzene

Jun 30Resolved

1,2,4-Trichlorobenzene

Jun 30Resolved

cis-1,2-Dichloroethylene

Jun 30Resolved

cis-1,2-Dichloroethylene

Jun 30Resolved

cis-1,2-Dichloroethylene

Jun 30Resolved

o-Dichlorobenzene

Jun 30Resolved

o-Dichlorobenzene

Jun 30Resolved

o-Dichlorobenzene

Jun 30Resolved

p-Dichlorobenzene

Jun 30Resolved

p-Dichlorobenzene

Jun 30Resolved

p-Dichlorobenzene

Jun 30Resolved

1,1,1-Trichloroethane

Jun 30Resolved

1,1,1-Trichloroethane

Jun 30Resolved

1,1,1-Trichloroethane

Jun 30Resolved

1,2-Dichloropropane

Jun 30Resolved

1,2-Dichloropropane

Jun 30Resolved

1,2-Dichloropropane

Jun 30Resolved

Toluene

Jun 30Resolved

Toluene

Jun 30Resolved

Toluene

Jun 30Resolved

Styrene

Jun 30Resolved

Ethylbenzene

Jun 30Resolved

Ethylbenzene

Jun 30Resolved

Ethylbenzene

Jun 30Resolved

Styrene

Jun 30Resolved

Styrene

Jun 30Resolved

Carbon tetrachloride

Jun 30Resolved

Carbon tetrachloride

Jun 30Resolved

1,2-Dichloroethane

Jun 30Resolved

Vinyl chloride

Jun 30Resolved

Vinyl chloride

Jun 30Resolved

Vinyl chloride

Jun 30Resolved

Xylenes, Total

Jun 30Resolved

Xylenes, Total

Jun 30Resolved

Xylenes, Total

Jun 30Resolved

trans-1,2-Dichloroethylene

Jun 30Resolved

trans-1,2-Dichloroethylene

Jun 30Resolved

trans-1,2-Dichloroethylene

Jun 30Resolved

Carbon tetrachloride

Jun 30Resolved

1,2-Dichloroethane

Jun 30Resolved

Tetrachloroethylene

Jun 30Resolved

Revised Total Coliform Rule

Jun 11Resolved

Revised Total Coliform Rule

Jun 11Resolved

Revised Total Coliform Rule

Jun 11Resolved

Revised Total Coliform Rule

Jun 11Resolved

Revised Total Coliform Rule

Jun 11Resolved

Revised Total Coliform Rule

Jun 11Resolved

Public Notice

Jun 1Resolved

Public Notice

Jun 1Resolved

E. COLI

Apr 11Resolved

E. COLI

Apr 11Resolved

E. COLI

Apr 11Resolved

2024(36)

Revised Total Coliform Rule

Sep 30Resolved

Revised Total Coliform Rule

Sep 30Resolved

Revised Total Coliform Rule

Sep 30Resolved

Public Notice

Sep 25Active

Public Notice

Sep 1Resolved

Public Notice

Sep 1Resolved

Surface Water Treatment Rule

Aug 31Resolved

Surface Water Treatment Rule

Aug 31Resolved

Surface Water Treatment Rule

Aug 31Resolved

Stage 1 Disinfectants and Disinfection Byproducts Rule

Jul 8Resolved

Stage 1 Disinfectants and Disinfection Byproducts Rule

Jul 8Resolved

Stage 1 Disinfectants and Disinfection Byproducts Rule

Jul 8Resolved

Stage 1 Disinfectants and Disinfection Byproducts Rule

Jul 8Resolved

Chlorine

Jun 30Resolved

Chlorine

Jun 30Resolved

Chlorine

Jun 30Resolved

Public Notice

Jun 1Resolved

Public Notice

Jun 1Resolved

Interim Enhanced Surface Water Treatment Rule

May 31Resolved

Interim Enhanced Surface Water Treatment Rule

May 31Resolved

Interim Enhanced Surface Water Treatment Rule

May 31Resolved

Surface Water Treatment Rule

May 31Resolved

Surface Water Treatment Rule

May 31Resolved

Surface Water Treatment Rule

May 31Resolved

Revised Total Coliform Rule

May 31Resolved

Revised Total Coliform Rule

May 31Resolved

Revised Total Coliform Rule

May 31Resolved

Surface Water Treatment Rule

Apr 30Resolved

Surface Water Treatment Rule

Apr 30Resolved

Surface Water Treatment Rule

Apr 30Resolved

Interim Enhanced Surface Water Treatment Rule

Apr 30Resolved

Interim Enhanced Surface Water Treatment Rule

Apr 30Resolved

Interim Enhanced Surface Water Treatment Rule

Apr 30Resolved

Nitrate

Mar 31Resolved

Nitrate

Mar 31Resolved

Nitrate

Mar 31Resolved

2022(63)

Surface Water Treatment Rule

Dec 31Resolved

Surface Water Treatment Rule

Dec 31Resolved

Surface Water Treatment Rule

Dec 31Resolved

Groundwater Rule

Dec 10Resolved

Groundwater Rule

Dec 10Resolved

Groundwater Rule

Dec 10Resolved

Groundwater Rule

Dec 10Resolved

Groundwater Rule

Dec 10Resolved

Groundwater Rule

Dec 10Resolved

Groundwater Rule

Dec 10Resolved

Groundwater Rule

Dec 10Resolved

Groundwater Rule

Dec 10Resolved

Groundwater Rule

Dec 10Active

Groundwater Rule

Dec 10Active

Groundwater Rule

Dec 10Active

Groundwater Rule

Dec 10Resolved

Surface Water Treatment Rule

Nov 30Resolved

Surface Water Treatment Rule

Nov 30Resolved

Surface Water Treatment Rule

Nov 30Resolved

Surface Water Treatment Rule

Nov 30Resolved

Public Notice

Sep 11Resolved

Public Notice

Sep 11Resolved

Public Notice

Sep 11Resolved

Public Notice

Sep 9Resolved

Public Notice

Sep 9Resolved

Public Notice

Sep 9Resolved

Public Notice

Aug 21Resolved

Public Notice

Aug 21Resolved

Public Notice

Aug 21Resolved

Public Notice

Aug 11Resolved

Public Notice

Aug 11Resolved

Public Notice

Aug 11Resolved

Revised Total Coliform Rule

Jul 31Resolved

Revised Total Coliform Rule

Jul 31Resolved

Revised Total Coliform Rule

Jul 31Resolved

Revised Total Coliform Rule

Jul 10Active

Revised Total Coliform Rule

Jul 10Active

Revised Total Coliform Rule

Jul 10Active

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Nitrate

Jun 30Resolved

Nitrate

Jun 30Resolved

Nitrate

Jun 30Resolved

Interim Enhanced Surface Water Treatment Rule

May 31Resolved

Interim Enhanced Surface Water Treatment Rule

May 31Resolved

Interim Enhanced Surface Water Treatment Rule

May 31Resolved

Revised Total Coliform Rule

May 31Resolved

Revised Total Coliform Rule

May 31Resolved

Revised Total Coliform Rule

May 31Resolved

Interim Enhanced Surface Water Treatment Rule

Apr 30Resolved

Interim Enhanced Surface Water Treatment Rule

Apr 30Resolved

Interim Enhanced Surface Water Treatment Rule

Apr 30Resolved

Interim Enhanced Surface Water Treatment Rule

Mar 31Resolved

Interim Enhanced Surface Water Treatment Rule

Mar 31Resolved

Interim Enhanced Surface Water Treatment Rule

Mar 31Resolved

Interim Enhanced Surface Water Treatment Rule

Feb 28Resolved

Interim Enhanced Surface Water Treatment Rule

Feb 28Resolved

Interim Enhanced Surface Water Treatment Rule

Feb 28Resolved

Interim Enhanced Surface Water Treatment Rule

Jan 31Resolved

Interim Enhanced Surface Water Treatment Rule

Jan 31Resolved

Interim Enhanced Surface Water Treatment Rule

Jan 31Resolved

Interim Enhanced Surface Water Treatment Rule

Jan 31Resolved

2021(42)

Interim Enhanced Surface Water Treatment Rule

Dec 31Resolved

Interim Enhanced Surface Water Treatment Rule

Dec 31Resolved

Interim Enhanced Surface Water Treatment Rule

Dec 31Resolved

Nitrate

Dec 31Resolved

Nitrate

Dec 31Resolved

Nitrate

Dec 31Resolved

Nitrate

Dec 31Resolved

Interim Enhanced Surface Water Treatment Rule

Nov 30Resolved

Interim Enhanced Surface Water Treatment Rule

Nov 30Resolved

Interim Enhanced Surface Water Treatment Rule

Nov 30Resolved

Interim Enhanced Surface Water Treatment Rule

Oct 31Resolved

Interim Enhanced Surface Water Treatment Rule

Oct 31Resolved

Interim Enhanced Surface Water Treatment Rule

Oct 31Resolved

Interim Enhanced Surface Water Treatment Rule

Sep 30Resolved

Interim Enhanced Surface Water Treatment Rule

Sep 30Resolved

Interim Enhanced Surface Water Treatment Rule

Sep 30Resolved

Revised Total Coliform Rule

Sep 30Resolved

Revised Total Coliform Rule

Sep 30Resolved

Revised Total Coliform Rule

Sep 30Resolved

Interim Enhanced Surface Water Treatment Rule

Aug 31Resolved

Interim Enhanced Surface Water Treatment Rule

Aug 31Resolved

Interim Enhanced Surface Water Treatment Rule

Aug 31Resolved

Interim Enhanced Surface Water Treatment Rule

Jul 31Resolved

Interim Enhanced Surface Water Treatment Rule

Jul 31Resolved

Interim Enhanced Surface Water Treatment Rule

Jul 31Resolved

Interim Enhanced Surface Water Treatment Rule

Jun 30Resolved

Interim Enhanced Surface Water Treatment Rule

Jun 30Resolved

Interim Enhanced Surface Water Treatment Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 10Resolved

Revised Total Coliform Rule

Jun 10Resolved

Revised Total Coliform Rule

Jun 10Resolved

Interim Enhanced Surface Water Treatment Rule

May 31Resolved

Interim Enhanced Surface Water Treatment Rule

May 31Resolved

Interim Enhanced Surface Water Treatment Rule

May 31Resolved

Revised Total Coliform Rule

May 31Resolved

Revised Total Coliform Rule

May 31Resolved

Revised Total Coliform Rule

May 31Resolved

Revised Total Coliform Rule

Apr 30Resolved

Revised Total Coliform Rule

Apr 30Resolved

Revised Total Coliform Rule

Apr 30Resolved

Revised Total Coliform Rule

Apr 30Resolved

Revised Total Coliform Rule

Apr 30Resolved

How Does This Compare?

BAYFIELD (81122) has 251 recorded violations, including 35 health-based. 9 remain unresolved. Consider testing your tap water independently for added peace of mind.

Recommended Water Filters

Based on the contaminants detected in your area, these filter types may help improve your water quality.

Reverse Osmosis System

One of the few filtration methods effective at removing nitrates and nitrites. Essential for households with infants.

Targets:Nitrate, Nitrite, Dissolved Solids

Look for:NSF/ANSI 58 certified

NSF Certified Products → EPA Safe Drinking Water Guide →

Activated Carbon Filter

Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.

Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor

Look for:NSF/ANSI 42 & 53 certified

NSF Certified Products → EPA Safe Drinking Water Guide →

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

NSF Certified Products → EPA Safe Drinking Water Guide →

Always look for filters certified by NSF International for the specific contaminants you want to remove.

Water Quality in BAYFIELD, CO (81122)

What does this mean?

Violations Detail (251 total)

Lead & Copper Levels

Violation Timeline

2025(76)

2024(36)

2023(34)

2022(63)

2021(42)

How Does This Compare?

Recommended Water Filters

Reverse Osmosis System

Activated Carbon Filter

UV Water Purifier

Nearby ZIP Codes

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