Is MAPLETON WATER DISTRICT required to publish a Consumer Confidence Report?

Yes. MAPLETON WATER DISTRICT 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 MAPLETON WATER DISTRICT’s next Consumer Confidence Report due?

MAPLETON WATER DISTRICT’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.

MAPLETON, OR · Lane County

MAPLETON WATER DISTRICT Water System

Consumer Confidence Report status

MAPLETON WATER DISTRICT 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 MAPLETON WATER DISTRICT.

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 Oregon’s official records. Always confirm current status with Oregon before making decisions based on this information.

System facts

System ID (PWSID): OR4100507
System type: Community Water System
Population served: 600
Service connections: 267
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

MAPLETON WATER DISTRICT is one of 203 community water systems in Oregon in the 501 to 3,300 people size category, serving 600 people from surface water.

As of August 1, 2026, its federal record holds 182 entries between 1976 and 2025, all of which EPA lists as closed.

Of the 182, 147 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 the Surface Water Treatment Rules, volatile organic chemicals, and the Lead and Copper Rule.

Violation history

Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
October 1, 2025 – October 31, 2025
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
October 1, 2025 – October 31, 2025
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
October 1, 2025 – October 31, 2025
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2025 – August 22, 2025
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
April 1, 2025 – April 30, 2025
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
April 1, 2025 – April 30, 2025
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
April 1, 2025 – April 30, 2025
Resolved
Initial, Follow-up, or Routine Source Water M/R
—
Lead and Copper Rule
January 1, 2025 – June 10, 2025
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2024 – July 3, 2024
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
May 1, 2024 – May 31, 2024
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
May 1, 2024 – May 31, 2024
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
May 1, 2024 – May 31, 2024
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
May 1, 2024 – May 31, 2024
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
May 1, 2024 – May 31, 2024
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
April 1, 2024 – April 30, 2024
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
February 1, 2024 – February 29, 2024
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
February 1, 2024 – February 29, 2024
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
February 1, 2024 – February 29, 2024
Resolved
Initial, Follow-up, or Routine Source Water M/R
—
Lead and Copper Rule
January 1, 2024 – April 6, 2024
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
January 1, 2024 – January 31, 2024
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
January 1, 2024 – January 31, 2024
Resolved
Initial, Follow-up, or Routine Source Water M/R
—
Lead and Copper Rule
January 1, 2024 – July 6, 2024
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
December 1, 2023 – December 31, 2023
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
December 1, 2023 – December 31, 2023
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
December 1, 2023 – December 31, 2023
Resolved
Initial, Follow-up, or Routine Source Water M/R
—
Lead and Copper Rule
July 1, 2023 – February 2, 2024
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
May 1, 2023 – May 31, 2023
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
February 1, 2023 – February 28, 2023
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
February 1, 2023 – February 28, 2023
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
February 1, 2023 – February 28, 2023
Resolved
Initial, Follow-up, or Routine Source Water M/R
—
Lead and Copper Rule
January 1, 2023 – April 9, 2023
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2023 – December 31, 2023
Resolved
Monitoring and Reporting (DBP)
—
TTHM
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
—
trans-1,2-Dichloroethylene
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
Monitoring, Regular
—
Nitrate
January 1, 2023 – December 31, 2023
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
December 1, 2022 – December 31, 2022
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
December 1, 2022 – December 31, 2022
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
December 1, 2022 – December 31, 2022
Resolved
Initial, Follow-up, or Routine Source Water M/R
—
Lead and Copper Rule
July 1, 2022 – February 10, 2023
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
January 1, 2022 – January 31, 2022
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
January 1, 2022 – January 31, 2022
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
January 1, 2022 – January 31, 2022
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
September 1, 2021 – September 30, 2021
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
September 1, 2021 – September 30, 2021
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
September 1, 2021 – September 30, 2021
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
August 1, 2021 – August 31, 2021
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
August 1, 2021 – August 31, 2021
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
August 1, 2021 – August 31, 2021
Resolved
Initial, Follow-up, or Routine Source Water M/R
—
Lead and Copper Rule
January 1, 2021 – August 2, 2021
Resolved
Initial, Follow-up, or Routine Source Water M/R
—
Lead and Copper Rule
January 1, 2021 – August 2, 2021
Resolved
Initial, Follow-up, or Routine Source Water M/R
—
Lead and Copper Rule
January 1, 2021 – August 2, 2021
Resolved
Initial, Follow-up, or Routine Source Water M/R
—
Lead and Copper Rule
January 1, 2021 – August 2, 2021
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
December 1, 2020 – December 31, 2020
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
December 1, 2020 – December 31, 2020
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
December 1, 2020 – December 31, 2020
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
November 1, 2020 – November 30, 2020
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
November 1, 2020 – November 30, 2020
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
November 1, 2020 – November 30, 2020
Resolved
Initial, Follow-up, or Routine Source Water M/R
—
Lead and Copper Rule
July 1, 2020 – February 3, 2021
Resolved
Initial, Follow-up, or Routine Source Water M/R
—
Lead and Copper Rule
July 1, 2020 – February 3, 2021
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
March 1, 2020 – March 31, 2020
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
March 1, 2020 – March 31, 2020
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
March 1, 2020 – March 31, 2020
Resolved
Initial, Follow-up, or Routine Source Water M/R
—
Lead and Copper Rule
January 1, 2020 – May 7, 2020
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
March 1, 2018 – March 31, 2018
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
March 1, 2018 – March 31, 2018
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
March 1, 2018 – March 31, 2018
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
September 1, 2017 – September 30, 2017
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
January 1, 2017 – December 31, 2025
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
January 1, 2017 – December 31, 2025
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2017 – December 31, 2017
Resolved
Monitoring, Regular
—
Combined Uranium
January 1, 2017 – December 31, 2025
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2017 – December 31, 2017
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2017 – December 31, 2017
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2017 – December 31, 2017
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2017 – December 31, 2017
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2017 – December 31, 2017
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2017 – December 31, 2017
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2017 – December 31, 2017
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2017 – December 31, 2017
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2017 – December 31, 2017
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2017 – December 31, 2017
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2017 – December 31, 2017
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2017 – December 31, 2017
Resolved
Monitoring, Regular
—
Benzene
January 1, 2017 – December 31, 2017
Resolved
Monitoring, Regular
—
Toluene
January 1, 2017 – December 31, 2017
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2017 – December 31, 2017
Resolved
Monitoring, Regular
—
Styrene
January 1, 2017 – December 31, 2017
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2017 – December 31, 2017
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2017 – December 31, 2017
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2017 – December 31, 2017
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
October 1, 2016 – October 31, 2016
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
October 1, 2016 – October 31, 2016
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
October 1, 2016 – October 31, 2016
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
September 1, 2016 – September 30, 2016
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
June 1, 2016 – June 30, 2016
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
June 1, 2016 – June 30, 2016
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
June 1, 2016 – June 30, 2016
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
December 1, 2015 – February 20, 1991
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
December 1, 2015 – February 20, 1991
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
December 1, 2015 – February 20, 1991
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 2015 – September 30, 2015
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 2014 – April 30, 2014
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
January 1, 2014 – January 31, 2014
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
January 1, 2014 – January 31, 2014
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
January 1, 2014 – January 31, 2014
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
January 1, 2014 – January 31, 2014
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2013 – September 30, 2013
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2013 – September 30, 2013
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
April 1, 2012 – April 30, 2012
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
April 1, 2012 – April 30, 2012
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
April 1, 2012 – April 30, 2012
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2011 – September 30, 2011
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2011 – September 30, 2011
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 2011 – June 30, 2011
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
December 1, 2009 – December 31, 2009
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
December 1, 2009 – December 31, 2009
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 2002 – August 31, 2002
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
May 1, 2001 – May 31, 2001
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
July 1, 1999 – July 31, 1999
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
June 1, 1999 – June 30, 1999
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
February 1, 1999 – February 28, 1999
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
December 1, 1998 – December 31, 1998
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
September 1, 1998 – September 30, 1998
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
August 1, 1998 – August 31, 1998
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
July 1, 1998 – July 31, 1998
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
June 1, 1998 – June 30, 1998
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
April 1, 1998 – April 30, 1998
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
March 1, 1998 – March 31, 1998
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
February 1, 1998 – February 28, 1998
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
September 1, 1997 – September 30, 1997
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
August 1, 1997 – August 31, 1997
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
May 1, 1997 – May 31, 1997
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
April 1, 1997 – April 30, 1997
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
March 1, 1997 – March 31, 1997
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
February 1, 1997 – February 28, 1997
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
January 1, 1997 – January 31, 1997
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
November 1, 1996 – November 30, 1996
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
September 1, 1996 – September 30, 1996
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
August 1, 1996 – August 31, 1996
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
April 1, 1996 – April 30, 1996
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
September 1, 1995 – September 30, 1995
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
August 1, 1995 – August 31, 1995
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
July 1, 1995 – July 31, 1995
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
April 1, 1995 – April 30, 1995
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
March 1, 1995 – March 31, 1995
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
February 1, 1995 – February 28, 1995
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
September 1, 1994 – September 30, 1994
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
July 1, 1994 – July 31, 1994
Resolved
OCCT/SOWT Study/Recommendation
Health-based
Lead and Copper Rule
January 1, 1994 – December 25, 2010
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
May 1, 1993 – May 31, 1993
Resolved
Monitoring, Repeat Minor (TCR)
—
Coliform (TCR)
April 1, 1993 – April 30, 1993
Resolved
Monitoring, Regular
—
Chromium
June 24, 1979 – June 23, 1980
Archived
Monitoring, Regular
—
Mercury
June 24, 1979 – June 23, 1980
Archived
Monitoring, Regular
—
Cadmium
June 24, 1979 – June 23, 1980
Archived
Monitoring, Regular
—
Fluoride
June 24, 1979 – June 23, 1980
Archived
Monitoring, Regular
—
Arsenic
June 24, 1979 – June 23, 1980
Archived
Monitoring, Regular
—
Barium
June 24, 1979 – June 23, 1980
Archived
Monitoring, Regular
—
Nitrate
June 24, 1979 – June 23, 1980
Archived
Monitoring, Regular
—
Selenium
June 24, 1979 – June 23, 1980
Archived
Monitoring, Regular
—
Combined Radium (-226 and -228)
June 1, 1976 – May 31, 1980
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
June 1, 1976 – May 31, 1980
Archived

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

Period	Violation	Contaminant / rule	Health-based	Status
October 1, 2025 – October 31, 2025	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
October 1, 2025 – October 31, 2025	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
October 1, 2025 – October 31, 2025	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
July 1, 2025 – August 22, 2025	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
April 1, 2025 – April 30, 2025	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
April 1, 2025 – April 30, 2025	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
April 1, 2025 – April 30, 2025	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
January 1, 2025 – June 10, 2025	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	—	Resolved
July 1, 2024 – July 3, 2024	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
May 1, 2024 – May 31, 2024	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
May 1, 2024 – May 31, 2024	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
May 1, 2024 – May 31, 2024	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
May 1, 2024 – May 31, 2024	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
May 1, 2024 – May 31, 2024	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
April 1, 2024 – April 30, 2024	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
February 1, 2024 – February 29, 2024	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
February 1, 2024 – February 29, 2024	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
February 1, 2024 – February 29, 2024	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
January 1, 2024 – April 6, 2024	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	—	Resolved
January 1, 2024 – January 31, 2024	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
January 1, 2024 – January 31, 2024	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
January 1, 2024 – July 6, 2024	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	—	Resolved
December 1, 2023 – December 31, 2023	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
December 1, 2023 – December 31, 2023	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
December 1, 2023 – December 31, 2023	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
July 1, 2023 – February 2, 2024	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	—	Resolved
May 1, 2023 – May 31, 2023	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
February 1, 2023 – February 28, 2023	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
February 1, 2023 – February 28, 2023	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
February 1, 2023 – February 28, 2023	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
January 1, 2023 – April 9, 2023	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring and Reporting (DBP)	TTHM	—	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	trans-1,2-Dichloroethylene	—	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
January 1, 2023 – December 31, 2023	Monitoring, Regular	Nitrate	—	Resolved
December 1, 2022 – December 31, 2022	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
December 1, 2022 – December 31, 2022	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
December 1, 2022 – December 31, 2022	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
July 1, 2022 – February 10, 2023	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	—	Resolved
January 1, 2022 – January 31, 2022	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
January 1, 2022 – January 31, 2022	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
January 1, 2022 – January 31, 2022	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
September 1, 2021 – September 30, 2021	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
September 1, 2021 – September 30, 2021	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
September 1, 2021 – September 30, 2021	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
August 1, 2021 – August 31, 2021	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
August 1, 2021 – August 31, 2021	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
August 1, 2021 – August 31, 2021	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
January 1, 2021 – August 2, 2021	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	—	Resolved
January 1, 2021 – August 2, 2021	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	—	Resolved
January 1, 2021 – August 2, 2021	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	—	Resolved
January 1, 2021 – August 2, 2021	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	—	Resolved
December 1, 2020 – December 31, 2020	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
December 1, 2020 – December 31, 2020	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
December 1, 2020 – December 31, 2020	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
November 1, 2020 – November 30, 2020	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
November 1, 2020 – November 30, 2020	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
November 1, 2020 – November 30, 2020	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
July 1, 2020 – February 3, 2021	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	—	Resolved
July 1, 2020 – February 3, 2021	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	—	Resolved
March 1, 2020 – March 31, 2020	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
March 1, 2020 – March 31, 2020	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
March 1, 2020 – March 31, 2020	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
January 1, 2020 – May 7, 2020	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	—	Resolved
March 1, 2018 – March 31, 2018	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
March 1, 2018 – March 31, 2018	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
March 1, 2018 – March 31, 2018	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
September 1, 2017 – September 30, 2017	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
January 1, 2017 – December 31, 2025	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
January 1, 2017 – December 31, 2025	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
January 1, 2017 – December 31, 2017	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2017 – December 31, 2025	Monitoring, Regular	Combined Uranium	—	Resolved
January 1, 2017 – December 31, 2017	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2017 – December 31, 2017	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2017 – December 31, 2017	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2017 – December 31, 2017	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2017 – December 31, 2017	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2017 – December 31, 2017	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2017 – December 31, 2017	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2017 – December 31, 2017	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2017 – December 31, 2017	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2017 – December 31, 2017	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2017 – December 31, 2017	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2017 – December 31, 2017	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2017 – December 31, 2017	Monitoring, Regular	Benzene	—	Resolved
January 1, 2017 – December 31, 2017	Monitoring, Regular	Toluene	—	Resolved
January 1, 2017 – December 31, 2017	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2017 – December 31, 2017	Monitoring, Regular	Styrene	—	Resolved
January 1, 2017 – December 31, 2017	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2017 – December 31, 2017	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2017 – December 31, 2017	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
October 1, 2016 – October 31, 2016	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
October 1, 2016 – October 31, 2016	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
October 1, 2016 – October 31, 2016	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
September 1, 2016 – September 30, 2016	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
June 1, 2016 – June 30, 2016	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
June 1, 2016 – June 30, 2016	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
June 1, 2016 – June 30, 2016	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
December 1, 2015 – February 20, 1991	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
December 1, 2015 – February 20, 1991	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
December 1, 2015 – February 20, 1991	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
September 1, 2015 – September 30, 2015	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 2014 – April 30, 2014	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2014 – January 31, 2014	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2014 – January 31, 2014	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
January 1, 2014 – January 31, 2014	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
January 1, 2014 – January 31, 2014	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
July 1, 2013 – September 30, 2013	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 2013 – September 30, 2013	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
April 1, 2012 – April 30, 2012	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
April 1, 2012 – April 30, 2012	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
April 1, 2012 – April 30, 2012	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
July 1, 2011 – September 30, 2011	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 2011 – September 30, 2011	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
June 1, 2011 – June 30, 2011	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
December 1, 2009 – December 31, 2009	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
December 1, 2009 – December 31, 2009	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
August 1, 2002 – August 31, 2002	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
May 1, 2001 – May 31, 2001	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
July 1, 1999 – July 31, 1999	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
June 1, 1999 – June 30, 1999	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
February 1, 1999 – February 28, 1999	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
December 1, 1998 – December 31, 1998	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
September 1, 1998 – September 30, 1998	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
August 1, 1998 – August 31, 1998	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
July 1, 1998 – July 31, 1998	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
June 1, 1998 – June 30, 1998	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
April 1, 1998 – April 30, 1998	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
March 1, 1998 – March 31, 1998	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
February 1, 1998 – February 28, 1998	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
September 1, 1997 – September 30, 1997	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
August 1, 1997 – August 31, 1997	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
May 1, 1997 – May 31, 1997	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
April 1, 1997 – April 30, 1997	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
March 1, 1997 – March 31, 1997	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
February 1, 1997 – February 28, 1997	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
January 1, 1997 – January 31, 1997	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
November 1, 1996 – November 30, 1996	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
September 1, 1996 – September 30, 1996	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
August 1, 1996 – August 31, 1996	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
April 1, 1996 – April 30, 1996	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
September 1, 1995 – September 30, 1995	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
August 1, 1995 – August 31, 1995	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
July 1, 1995 – July 31, 1995	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
April 1, 1995 – April 30, 1995	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
March 1, 1995 – March 31, 1995	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
February 1, 1995 – February 28, 1995	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
September 1, 1994 – September 30, 1994	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
July 1, 1994 – July 31, 1994	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
January 1, 1994 – December 25, 2010	OCCT/SOWT Study/Recommendation	Lead and Copper Rule	Health-based	Resolved
May 1, 1993 – May 31, 1993	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
April 1, 1993 – April 30, 1993	Monitoring, Repeat Minor (TCR)	Coliform (TCR)	—	Resolved
June 24, 1979 – June 23, 1980	Monitoring, Regular	Chromium	—	Archived
June 24, 1979 – June 23, 1980	Monitoring, Regular	Mercury	—	Archived
June 24, 1979 – June 23, 1980	Monitoring, Regular	Cadmium	—	Archived
June 24, 1979 – June 23, 1980	Monitoring, Regular	Fluoride	—	Archived
June 24, 1979 – June 23, 1980	Monitoring, Regular	Arsenic	—	Archived
June 24, 1979 – June 23, 1980	Monitoring, Regular	Barium	—	Archived
June 24, 1979 – June 23, 1980	Monitoring, Regular	Nitrate	—	Archived
June 24, 1979 – June 23, 1980	Monitoring, Regular	Selenium	—	Archived
June 1, 1976 – May 31, 1980	Monitoring, Regular	Combined Radium (-226 and -228)	—	Archived
June 1, 1976 – May 31, 1980	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived

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

Enforcement actions

February 27, 2026State Compliance achieved1 linked violation
February 27, 2026State Compliance achieved1 linked violation
February 27, 2026State Compliance achieved1 linked violation
December 5, 2025State Compliance achieved3 linked violations
August 22, 2025State Compliance achieved1 linked violation
June 23, 2025State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
June 10, 2025State Compliance achieved3 linked violations
June 10, 2025State Compliance achieved1 linked violation
December 26, 2024State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
October 27, 2024State Compliance achieved2 linked violations
October 15, 2024State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
August 27, 2024State Compliance achieved3 linked violations
August 6, 2024State Compliance achieved10 linked violations
August 6, 2024State Compliance achieved3 linked violations
August 6, 2024State Compliance achieved6 linked violations
August 6, 2024State Compliance achieved2 linked violations
August 6, 2024State Compliance achieved1 linked violation
August 1, 2024State Public Notification received1 linked violation
August 1, 2024State Public Notification received1 linked violation
July 31, 2024State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
July 6, 2024State Compliance achieved1 linked violation
July 6, 2024State Compliance achieved3 linked violations
July 5, 2024State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
July 3, 2024State Compliance achieved1 linked violation
July 3, 2024State Public Notification requested1 linked violation
July 3, 2024State Public Notification requested1 linked violation
June 10, 2024State Public Notification received1 linked violation
June 4, 2024State Public Notification requested1 linked violation
May 1, 2024State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
April 6, 2024State Compliance achieved5 linked violations
April 6, 2024State Compliance achieved1 linked violation
March 18, 2024State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
February 2, 2024State Compliance achieved1 linked violation
February 2, 2024State Compliance achieved3 linked violations
September 6, 2023State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
June 30, 2023State Compliance achieved1 linked violation
May 1, 2023State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
April 9, 2023State Compliance achieved3 linked violations
April 9, 2023State Compliance achieved1 linked violation
March 5, 2023State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
February 10, 2023State Compliance achieved3 linked violations
February 10, 2023State Compliance achieved1 linked violation
March 8, 2022State Compliance achieved3 linked violations
November 8, 2021State Compliance achieved6 linked violations
August 2, 2021State Compliance achieved4 linked violations
February 3, 2021State Compliance achieved2 linked violations
February 3, 2021State Compliance achieved6 linked violations
May 7, 2020State Compliance achieved1 linked violation
May 7, 2020State Compliance achieved3 linked violations
October 24, 2018State Compliance achieved20 linked violations
May 7, 2018State Compliance achieved3 linked violations
October 13, 2017State Compliance achieved1 linked violation
December 5, 2016State Compliance achieved3 linked violations
November 4, 2016State Compliance achieved1 linked violation
August 4, 2016State Compliance achieved3 linked violations
October 27, 2015State Compliance achieved1 linked violation
May 9, 2014State Compliance achieved1 linked violation
March 5, 2014State Compliance achieved3 linked violations
February 7, 2014State Compliance achieved1 linked violation
December 20, 2013State Compliance achieved2 linked violations
June 26, 2012State Violation/Reminder Notice3 linked violations
June 7, 2012State Compliance achieved1 linked violation
June 7, 2012State Compliance achieved1 linked violation
June 7, 2012State Compliance achieved1 linked violation
May 30, 2012State Violation/Reminder Notice3 linked violations
November 18, 2011State Compliance achieved1 linked violation
November 18, 2011State Compliance achieved1 linked violation
October 31, 2011State Violation/Reminder Notice2 linked violations
August 1, 2011State Violation/Reminder Notice1 linked violation
July 22, 2011State Compliance achieved1 linked violation
December 29, 2010State Compliance achieved1 linked violation
December 25, 2010State no longer subject to Rule1 linked violation
February 22, 2010State Violation/Reminder Notice2 linked violations
March 3, 2005State Public Notification received1 linked violation
December 12, 2000State Compliance achieved1 linked violation
September 28, 2000Federal Compliance achieved1 linked violation
April 20, 2000State Compliance achieved1 linked violation
March 31, 2000State Public Notification received3 linked violations
December 31, 1999State Public Notification received2 linked violations
November 26, 1999State Public Notification received2 linked violations
September 30, 1999State Public Notification received4 linked violations
August 23, 1999State Administrative/Compliance Order with penalty issued1 linked violation
June 30, 1999State Public Notification received5 linked violations
March 31, 1999State Public Notification received3 linked violations
January 13, 1999State Public Notification received8 linked violations
June 30, 1998State Public Notification received5 linked violations
March 31, 1998State Public Notification received5 linked violations
December 31, 1997State Public Notification received5 linked violations
September 30, 1997State Public Notification received5 linked violations
June 30, 1997State Public Notification received5 linked violations
April 1, 1997State Public Notification received6 linked violations
January 6, 1997State Public Notification received5 linked violations
October 2, 1996State Public Notification received5 linked violations
July 18, 1996State Public Notification received1 linked violation
June 6, 1996State Public Notification received5 linked violations
January 4, 1996State Public Notification received4 linked violations
November 21, 1994State Compliance achieved1 linked violation
November 21, 1994State Compliance achieved1 linked violation
May 19, 1994State Administrative/Compliance Order with penalty issued1 linked violation
February 20, 1991State Compliance achieved3 linked violations

Common questions

Is MAPLETON WATER DISTRICT required to publish a Consumer Confidence Report?: Yes. MAPLETON WATER DISTRICT 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 MAPLETON WATER DISTRICT’s next Consumer Confidence Report due?: MAPLETON WATER DISTRICT’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does MAPLETON WATER DISTRICT have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for MAPLETON WATER DISTRICT.
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

MAPLETON WATER DISTRICT

541-268-4348

MAPLETON, OR 97453