Is NIKOLAEVSK COMMUNITY WATER SYSTEM required to publish a Consumer Confidence Report?

Yes. NIKOLAEVSK COMMUNITY WATER SYSTEM is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is NIKOLAEVSK COMMUNITY WATER SYSTEM’s next Consumer Confidence Report due?

NIKOLAEVSK COMMUNITY WATER SYSTEM’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

NIKOLAEVSK, AK · Kenai Peninsula Borough County

NIKOLAEVSK COMMUNITY WATER SYSTEM Water System

Consumer Confidence Report status

NIKOLAEVSK COMMUNITY WATER SYSTEM must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for NIKOLAEVSK COMMUNITY WATER SYSTEM.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Alaska’s official records. Always confirm current status with Alaska before making decisions based on this information.

System facts

System ID (PWSID): AK2241648
System type: Community Water System
Population served: 360
Service connections: 72
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

NIKOLAEVSK COMMUNITY WATER SYSTEM is one of 698 community water systems in Alaska in the 500 or fewer people size category, serving 360 people from surface water.

As of August 1, 2026, its federal record holds 204 entries between 1986 and 2026, all of which EPA lists as closed.

Of the 204, 183 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves volatile organic chemicals, the Surface Water Treatment Rules, and the Total Coliform Rules.

Violation history

Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
February 1, 2026 – February 28, 2026
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
February 1, 2026 – February 28, 2026
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
January 1, 2026 – January 31, 2026
Archived
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
January 1, 2026 – January 31, 2026
Archived
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
December 1, 2025 – December 31, 2025
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
December 1, 2025 – December 31, 2025
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
November 1, 2025 – November 30, 2025
Archived
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
November 1, 2025 – November 30, 2025
Archived
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
October 1, 2025 – October 31, 2025
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
October 1, 2025 – October 31, 2025
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
September 1, 2025 – September 30, 2025
Archived
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
September 1, 2025 – September 30, 2025
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
August 1, 2025 – August 31, 2025
Archived
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
August 1, 2025 – August 31, 2025
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
July 1, 2025 – July 31, 2025
Archived
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
July 1, 2025 – July 31, 2025
Archived
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
June 1, 2025 – June 30, 2025
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
June 1, 2025 – June 30, 2025
Archived
LSL Reporting
—
LEAD AND COPPER RULE REVISIONS
October 17, 2024 – November 7, 2024
Resolved
LSL Inventory
Health-based
LEAD AND COPPER RULE REVISIONS
October 17, 2024 – November 7, 2024
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
August 1, 2024 – August 31, 2024
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Styrene
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Toluene
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Benzene
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2024 – December 31, 2024
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2024 – December 31, 2024
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
Styrene
January 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
Toluene
January 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
Benzene
January 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2023 – December 31, 2023
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 1, 2021 – June 28, 2022
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Toluene
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Benzene
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Styrene
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Source Water (LT2)
—
E. COLI
December 1, 2017 – December 31, 2017
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
September 1, 2017 – August 31, 2018
Resolved
Monitoring and Reporting (DBP)
—
TTHM
September 1, 2017 – August 31, 2018
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
October 1, 2016 – October 31, 2016
Resolved
Monitoring and Reporting (DBP)
—
TTHM
September 1, 2016 – August 31, 2017
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
September 1, 2016 – August 31, 2017
Resolved
Sample Siting Plan Errors (RTCR)
—
Revised Total Coliform Rule
April 1, 2016 – January 12, 2017
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
January 1, 2015 – January 31, 2015
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
October 1, 2014 – October 31, 2014
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
September 1, 2006 – September 30, 2006
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
August 1, 2006 – August 31, 2006
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
July 1, 2006 – July 31, 2006
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
June 1, 2006 – June 30, 2006
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
March 1, 2006 – March 31, 2006
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
February 1, 2006 – February 28, 2006
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
January 1, 2006 – January 31, 2006
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
December 1, 2005 – December 31, 2005
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
December 1, 2005 – December 31, 2005
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
July 1, 2002 – July 31, 2002
Archived
Monitoring, Regular
—
Mercury
January 1, 2002 – December 31, 2010
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2000 – December 31, 2000
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2000 – December 31, 2000
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2000 – December 31, 2000
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2000 – December 31, 2000
Resolved
Monitoring, Regular
—
Toluene
January 1, 2000 – December 31, 2000
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2000 – December 31, 2000
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
November 1, 1997 – November 30, 1997
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 1997 – September 30, 1997
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
September 1, 1997 – September 30, 1997
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
August 1, 1997 – August 31, 1997
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 1997 – August 31, 1997
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
August 1, 1997 – August 31, 1997
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
July 1, 1997 – July 31, 1997
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
June 1, 1997 – June 30, 1997
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
June 1, 1997 – June 30, 1997
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
May 1, 1997 – May 31, 1997
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
April 1, 1997 – April 30, 1997
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
March 1, 1997 – March 31, 1997
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
February 1, 1997 – February 28, 1997
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
February 1, 1997 – February 28, 1997
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
January 1, 1997 – January 31, 1997
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
December 1, 1996 – December 31, 1996
Archived
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
November 1, 1996 – November 30, 1996
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
September 1, 1996 – September 30, 1996
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 1996 – August 31, 1996
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
August 1, 1996 – August 31, 1996
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 1996 – July 31, 1996
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
June 1, 1996 – June 30, 1996
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
May 1, 1996 – May 31, 1996
Archived
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
April 1, 1996 – April 30, 1996
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 1996 – February 29, 1996
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
January 1, 1996 – January 31, 1996
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 1995 – December 31, 1995
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
November 1, 1995 – November 30, 1995
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
October 1, 1995 – October 31, 1995
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 1995 – September 30, 1995
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
August 1, 1995 – August 30, 1995
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 1995 – May 31, 1995
Resolved
Maximum Contaminant Level Violation, Acute (TCR)
Health-based
Coliform (TCR)
April 1, 1995 – April 30, 1995
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 1995 – April 30, 1995
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
March 1, 1995 – March 31, 1995
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 1995 – February 28, 1995
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
December 1, 1994 – December 31, 1994
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
November 1, 1994 – November 30, 1994
Archived
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
November 1, 1994 – November 30, 1994
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
October 1, 1994 – October 31, 1994
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
September 1, 1994 – September 30, 1994
Archived
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
September 1, 1994 – September 30, 1994
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 1994 – August 31, 1994
Archived
Monitoring, Regular
—
Nitrate
July 1, 1994 – September 30, 1994
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
July 1, 1994 – July 31, 1994
Archived
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
June 1, 1994 – June 30, 1994
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
May 1, 1994 – May 31, 1994
Archived
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
April 1, 1994 – April 30, 1994
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
October 1, 1993 – October 31, 1993
Archived
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
July 1, 1993 – July 31, 1993
Archived
Monitoring, Regular
—
Nitrate
July 1, 1993 – September 30, 1993
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 1993 – June 30, 1993
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 1993 – April 30, 1993
Archived
Monitoring, Regular
—
Nitrate
April 1, 1993 – June 30, 1993
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 1993 – February 28, 1993
Archived
Monitoring, Regular
—
Mercury
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
Arsenic
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
Cadmium
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
Chromium
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
Selenium
January 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
Fluoride
September 1, 1992 – August 31, 1993
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 1992 – March 31, 1992
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 1992 – March 31, 1992
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 1992 – March 31, 1992
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 1992 – March 31, 1992
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 1992 – March 31, 1992
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 1992 – March 31, 1992
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 1992 – March 31, 1992
Resolved
Monitoring, Regular
—
Benzene
January 1, 1992 – March 31, 1992
Resolved
Monitoring, Regular
—
Barium
March 1, 1991 – February 29, 1992
Archived
Monitoring, Regular
—
Selenium
March 1, 1991 – February 29, 1992
Archived
Monitoring, Regular
—
Mercury
March 1, 1991 – February 29, 1992
Archived
Monitoring, Regular
—
Chromium
March 1, 1991 – February 29, 1992
Archived
Monitoring, Regular
—
Cadmium
March 1, 1991 – February 29, 1992
Archived
Monitoring, Regular
—
Arsenic
March 1, 1991 – February 29, 1992
Archived
Monitoring, Regular
—
Fluoride
July 30, 1989 – July 31, 1990
Archived
Monitoring, Regular
—
Nitrate
July 30, 1989 – July 31, 1990
Archived
Monitoring, Regular
—
Mercury
July 30, 1989 – July 31, 1990
Archived
Monitoring, Regular
—
Chromium
July 30, 1989 – July 31, 1990
Archived
Monitoring, Regular
—
Cadmium
July 30, 1989 – July 31, 1990
Archived
Monitoring, Regular
—
Barium
July 30, 1989 – July 31, 1990
Archived
Monitoring, Regular
—
Arsenic
July 30, 1989 – July 31, 1990
Archived
Monitoring, Regular
—
Selenium
July 30, 1989 – July 31, 1990
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
September 1, 1988 – August 31, 1992
Archived
Monitoring, Regular
—
Barium
June 30, 1988 – June 30, 1989
Archived
Monitoring, Regular
—
Selenium
June 30, 1988 – June 30, 1989
Archived
Monitoring, Regular
—
Fluoride
June 30, 1988 – June 30, 1989
Archived
Monitoring, Regular
—
Mercury
June 30, 1988 – June 30, 1989
Archived
Monitoring, Regular
—
Chromium
June 30, 1988 – June 30, 1989
Archived
Monitoring, Regular
—
2,4-D
June 30, 1986 – June 30, 1989
Archived
Monitoring, Regular
—
Toxaphene
June 30, 1986 – June 30, 1989
Archived

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
February 1, 2026 – February 28, 2026	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Archived
February 1, 2026 – February 28, 2026	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
January 1, 2026 – January 31, 2026	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
January 1, 2026 – January 31, 2026	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Archived
December 1, 2025 – December 31, 2025	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Archived
December 1, 2025 – December 31, 2025	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
November 1, 2025 – November 30, 2025	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
November 1, 2025 – November 30, 2025	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Archived
October 1, 2025 – October 31, 2025	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Archived
October 1, 2025 – October 31, 2025	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
September 1, 2025 – September 30, 2025	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
September 1, 2025 – September 30, 2025	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Archived
August 1, 2025 – August 31, 2025	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
August 1, 2025 – August 31, 2025	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Archived
July 1, 2025 – July 31, 2025	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
July 1, 2025 – July 31, 2025	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Archived
June 1, 2025 – June 30, 2025	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Archived
June 1, 2025 – June 30, 2025	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
October 17, 2024 – November 7, 2024	LSL Reporting	LEAD AND COPPER RULE REVISIONS	—	Resolved
October 17, 2024 – November 7, 2024	LSL Inventory	LEAD AND COPPER RULE REVISIONS	Health-based	Resolved
August 1, 2024 – August 31, 2024	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Styrene	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Toluene	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Benzene	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring, Regular	Styrene	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring, Regular	Toluene	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring, Regular	Benzene	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
October 1, 2021 – June 28, 2022	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Toluene	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Benzene	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Styrene	—	Resolved
December 1, 2017 – December 31, 2017	Monitoring, Source Water (LT2)	E. COLI	—	Resolved
September 1, 2017 – August 31, 2018	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
September 1, 2017 – August 31, 2018	Monitoring and Reporting (DBP)	TTHM	—	Resolved
October 1, 2016 – October 31, 2016	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
September 1, 2016 – August 31, 2017	Monitoring and Reporting (DBP)	TTHM	—	Resolved
September 1, 2016 – August 31, 2017	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
April 1, 2016 – January 12, 2017	Sample Siting Plan Errors (RTCR)	Revised Total Coliform Rule	—	Resolved
January 1, 2015 – January 31, 2015	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
October 1, 2014 – October 31, 2014	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
September 1, 2006 – September 30, 2006	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
August 1, 2006 – August 31, 2006	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
July 1, 2006 – July 31, 2006	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
June 1, 2006 – June 30, 2006	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
March 1, 2006 – March 31, 2006	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
February 1, 2006 – February 28, 2006	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
January 1, 2006 – January 31, 2006	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
December 1, 2005 – December 31, 2005	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
December 1, 2005 – December 31, 2005	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
July 1, 2002 – July 31, 2002	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
January 1, 2002 – December 31, 2010	Monitoring, Regular	Mercury	—	Resolved
January 1, 2000 – December 31, 2000	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2000 – December 31, 2000	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2000 – December 31, 2000	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2000 – December 31, 2000	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2000 – December 31, 2000	Monitoring, Regular	Toluene	—	Resolved
January 1, 2000 – December 31, 2000	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
November 1, 1997 – November 30, 1997	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
September 1, 1997 – September 30, 1997	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
September 1, 1997 – September 30, 1997	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
August 1, 1997 – August 31, 1997	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
August 1, 1997 – August 31, 1997	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
August 1, 1997 – August 31, 1997	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
July 1, 1997 – July 31, 1997	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
June 1, 1997 – June 30, 1997	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
June 1, 1997 – June 30, 1997	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
May 1, 1997 – May 31, 1997	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
April 1, 1997 – April 30, 1997	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
March 1, 1997 – March 31, 1997	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
February 1, 1997 – February 28, 1997	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
February 1, 1997 – February 28, 1997	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
January 1, 1997 – January 31, 1997	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
December 1, 1996 – December 31, 1996	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
November 1, 1996 – November 30, 1996	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
September 1, 1996 – September 30, 1996	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
August 1, 1996 – August 31, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
August 1, 1996 – August 31, 1996	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
July 1, 1996 – July 31, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
June 1, 1996 – June 30, 1996	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
May 1, 1996 – May 31, 1996	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
April 1, 1996 – April 30, 1996	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
February 1, 1996 – February 29, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 1996 – January 31, 1996	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
December 1, 1995 – December 31, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
November 1, 1995 – November 30, 1995	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 1995 – October 31, 1995	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
September 1, 1995 – September 30, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
August 1, 1995 – August 30, 1995	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
May 1, 1995 – May 31, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 1995 – April 30, 1995	Maximum Contaminant Level Violation, Acute (TCR)	Coliform (TCR)	Health-based	Resolved
April 1, 1995 – April 30, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
March 1, 1995 – March 31, 1995	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
February 1, 1995 – February 28, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
December 1, 1994 – December 31, 1994	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
November 1, 1994 – November 30, 1994	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
November 1, 1994 – November 30, 1994	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 1994 – October 31, 1994	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
September 1, 1994 – September 30, 1994	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Archived
September 1, 1994 – September 30, 1994	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
August 1, 1994 – August 31, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
July 1, 1994 – September 30, 1994	Monitoring, Regular	Nitrate	—	Resolved
July 1, 1994 – July 31, 1994	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Archived
June 1, 1994 – June 30, 1994	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Archived
May 1, 1994 – May 31, 1994	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
April 1, 1994 – April 30, 1994	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Archived
October 1, 1993 – October 31, 1993	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
July 1, 1993 – July 31, 1993	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Archived
July 1, 1993 – September 30, 1993	Monitoring, Regular	Nitrate	—	Resolved
June 1, 1993 – June 30, 1993	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
April 1, 1993 – April 30, 1993	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
April 1, 1993 – June 30, 1993	Monitoring, Regular	Nitrate	—	Resolved
February 1, 1993 – February 28, 1993	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
January 1, 1993 – December 31, 1993	Monitoring, Regular	Mercury	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	Arsenic	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	Cadmium	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	Chromium	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	Selenium	—	Resolved
September 1, 1992 – August 31, 1993	Monitoring, Regular	Fluoride	—	Resolved
January 1, 1992 – March 31, 1992	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 1992 – March 31, 1992	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 1992 – March 31, 1992	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 1992 – March 31, 1992	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 1992 – March 31, 1992	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 1992 – March 31, 1992	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 1992 – March 31, 1992	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 1992 – March 31, 1992	Monitoring, Regular	Benzene	—	Resolved
March 1, 1991 – February 29, 1992	Monitoring, Regular	Barium	—	Archived
March 1, 1991 – February 29, 1992	Monitoring, Regular	Selenium	—	Archived
March 1, 1991 – February 29, 1992	Monitoring, Regular	Mercury	—	Archived
March 1, 1991 – February 29, 1992	Monitoring, Regular	Chromium	—	Archived
March 1, 1991 – February 29, 1992	Monitoring, Regular	Cadmium	—	Archived
March 1, 1991 – February 29, 1992	Monitoring, Regular	Arsenic	—	Archived
July 30, 1989 – July 31, 1990	Monitoring, Regular	Fluoride	—	Archived
July 30, 1989 – July 31, 1990	Monitoring, Regular	Nitrate	—	Archived
July 30, 1989 – July 31, 1990	Monitoring, Regular	Mercury	—	Archived
July 30, 1989 – July 31, 1990	Monitoring, Regular	Chromium	—	Archived
July 30, 1989 – July 31, 1990	Monitoring, Regular	Cadmium	—	Archived
July 30, 1989 – July 31, 1990	Monitoring, Regular	Barium	—	Archived
July 30, 1989 – July 31, 1990	Monitoring, Regular	Arsenic	—	Archived
July 30, 1989 – July 31, 1990	Monitoring, Regular	Selenium	—	Archived
September 1, 1988 – August 31, 1992	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
June 30, 1988 – June 30, 1989	Monitoring, Regular	Barium	—	Archived
June 30, 1988 – June 30, 1989	Monitoring, Regular	Selenium	—	Archived
June 30, 1988 – June 30, 1989	Monitoring, Regular	Fluoride	—	Archived
June 30, 1988 – June 30, 1989	Monitoring, Regular	Mercury	—	Archived
June 30, 1988 – June 30, 1989	Monitoring, Regular	Chromium	—	Archived
June 30, 1986 – June 30, 1989	Monitoring, Regular	2,4-D	—	Archived
June 30, 1986 – June 30, 1989	Monitoring, Regular	Toxaphene	—	Archived

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Enforcement actions

October 16, 2025State Compliance Meeting conductedgeneral compliance action — not tied to a specific violation on record
September 22, 2025State Compliance achieved2 linked violations
September 22, 2025State Compliance achieved1 linked violation
September 22, 2025State Compliance achieved42 linked violations
November 7, 2024State Compliance achieved1 linked violation
November 7, 2024State Compliance achieved1 linked violation
October 2, 2024State Compliance Meeting conductedgeneral compliance action — not tied to a specific violation on record
May 6, 2024State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
May 3, 2024State Compliance Meeting conductedgeneral compliance action — not tied to a specific violation on record
June 28, 2022State Compliance achieved1 linked violation
October 15, 2020State Public Notification received1 linked violation
September 9, 2020State Compliance achieved1 linked violation
September 9, 2020State Compliance achievedgeneral compliance action — not tied to a specific violation on record
January 10, 2020State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
October 3, 2019State Compliance achieved4 linked violations
October 3, 2019State Compliance achieved21 linked violations
May 15, 2018State Compliance Meeting conductedgeneral compliance action — not tied to a specific violation on record
May 14, 2018State Compliance Meeting conductedgeneral compliance action — not tied to a specific violation on record
May 10, 2018State Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
May 9, 2018State Boil Water Order3 linked violations
April 4, 2018State Compliance achieved1 linked violation
January 4, 2018State Public Notification requested1 linked violation
December 11, 2017State Compliance Meeting conductedgeneral compliance action — not tied to a specific violation on record
October 2, 2017State Compliance Meeting conducted1 linked violation
July 21, 2017State Compliance Meeting conducted1 linked violation
July 17, 2017State Compliance Meeting conductedgeneral compliance action — not tied to a specific violation on record
June 6, 2017State Compliance Meeting conductedgeneral compliance action — not tied to a specific violation on record
May 1, 2017State Compliance Meeting conducted1 linked violation
April 28, 2017State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
April 28, 2017State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
April 28, 2017State Boil Water Ordergeneral compliance action — not tied to a specific violation on record
January 12, 2017State Compliance achieved1 linked violation
December 16, 2016State Compliance achieved1 linked violation
November 28, 2016State Compliance Meeting conducted1 linked violation
October 20, 2016State Compliance Meeting conductedgeneral compliance action — not tied to a specific violation on record
October 4, 2016State Compliance Meeting conductedgeneral compliance action — not tied to a specific violation on record
October 3, 2016State Public Notification received4 linked violations
September 30, 2016State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
September 30, 2016State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
June 7, 2016State Violation/Reminder Notice1 linked violation
November 10, 2014State Compliance Meeting conductedgeneral compliance action — not tied to a specific violation on record
April 1, 2014State Compliance Meeting conducted3 linked violations
March 11, 2014State Compliance Meeting conductedgeneral compliance action — not tied to a specific violation on record
July 9, 2013State Compliance Meeting conductedgeneral compliance action — not tied to a specific violation on record
April 29, 2013State Compliance Meeting conductedgeneral compliance action — not tied to a specific violation on record
March 12, 2012State Compliance Meeting conducted1 linked violation
February 7, 2012State Compliance achieved1 linked violation
August 2, 2011State Compliance achieved1 linked violation
July 20, 2011State Violation/Reminder Notice1 linked violation
February 17, 2006State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
January 10, 2006State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
April 25, 2005State Compliance achieved1 linked violation
June 17, 2003State Othergeneral compliance action — not tied to a specific violation on record
April 4, 2002State Other4 linked violations
February 28, 2002State Other2 linked violations
May 25, 2001State Other1 linked violation
April 24, 2001State Compliance achieved20 linked violations
November 7, 2000State Other2 linked violations
December 8, 1999State Othergeneral compliance action — not tied to a specific violation on record
December 6, 1999State Other13 linked violations
December 21, 1998State Compliance achieved18 linked violations
August 26, 1997State Othergeneral compliance action — not tied to a specific violation on record
March 17, 1997State Other1 linked violation
February 24, 1997State Othergeneral compliance action — not tied to a specific violation on record
December 5, 1996State Other1 linked violation
February 5, 1996State Othergeneral compliance action — not tied to a specific violation on record
December 12, 1995State Violation/Reminder Notice1 linked violation
November 21, 1995State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
June 23, 1992State Violation/Reminder Notice6 linked violations
December 2, 1991State Othergeneral compliance action — not tied to a specific violation on record
March 12, 1991State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
July 19, 1989State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record

Common questions

Is NIKOLAEVSK COMMUNITY WATER SYSTEM required to publish a Consumer Confidence Report?: Yes. NIKOLAEVSK COMMUNITY WATER SYSTEM is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is NIKOLAEVSK COMMUNITY WATER SYSTEM’s next Consumer Confidence Report due?: NIKOLAEVSK COMMUNITY WATER SYSTEM’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does NIKOLAEVSK COMMUNITY WATER SYSTEM have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for NIKOLAEVSK COMMUNITY WATER SYSTEM.
What is a Consumer Confidence Report?: A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

MARTISHEV, SOPHIA

907-235-2731

NIKOLAEVSK, AK 99566