COQUILLE, OR · Coos County

COQUILLE, CITY OF Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 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): OR4100213
System type: Community Water System
Population served: 3,953
Service connections: 2,025
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Initial, Follow-up, or Routine Source Water M/R
—
Lead and Copper Rule
July 1, 2025 – September 3, 2025
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
Styrene
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
Ethylbenzene
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
Toluene
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
Benzene
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
Trichloroethylene
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
Nitrate
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
Xylenes, Total
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2025 – December 31, 2025
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
October 1, 2023 – October 31, 2023
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
October 1, 2023 – October 31, 2023
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 1, 2023 – October 16, 2023
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
October 1, 2023 – October 31, 2023
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
August 1, 2023 – August 31, 2023
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
August 1, 2023 – August 31, 2023
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
August 1, 2023 – August 31, 2023
Resolved
Initial, Follow-up, or Routine Source Water M/R
—
Lead and Copper Rule
July 1, 2023 – October 6, 2023
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2023 – July 18, 2023
Resolved
Initial, Follow-up, or Routine Source Water M/R
—
Lead and Copper Rule
July 1, 2023 – December 4, 2023
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
June 1, 2023 – June 30, 2023
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
June 1, 2023 – June 30, 2023
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
June 1, 2023 – June 30, 2023
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
February 1, 2023 – February 28, 2023
Resolved
Monitoring, Regular
—
Endrin
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
ETHYLENE DIBROMIDE
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Glyphosate
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Endothall
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Diquat
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Dalapon
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Toxaphene
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Methoxychlor
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
BHC-GAMMA
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Endrin
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Chlordane
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
ETHYLENE DIBROMIDE
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Total Polychlorinated Biphenyls (PCB)
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Pentachlorophenol
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
2,4,5-TP
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
2,4-D
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Heptachlor epoxide
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Heptachlor
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
LASSO
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Atrazine
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Carbofuran
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Hexachlorocyclopentadiene
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Dinoseb
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Picloram
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Simazine
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
OXAMYL
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Glyphosate
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Endothall
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Diquat
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Dalapon
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Toxaphene
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Methoxychlor
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
BHC-GAMMA
January 1, 2023 – December 31, 2025
Archived
Initial, Follow-up, or Routine Source Water M/R
—
Lead and Copper Rule
January 1, 2023 – August 7, 2023
Resolved
Monitoring, Regular
—
Chlordane
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Total Polychlorinated Biphenyls (PCB)
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Pentachlorophenol
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
2,4,5-TP
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
2,4-D
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Heptachlor epoxide
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Heptachlor
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
LASSO
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Atrazine
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Carbofuran
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Hexachlorocyclopentadiene
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Dinoseb
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Picloram
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Simazine
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
OXAMYL
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 2023 – December 31, 2025
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
September 1, 2022 – September 30, 2022
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
September 1, 2022 – September 30, 2022
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
September 1, 2022 – September 30, 2022
Resolved
Initial, Follow-up, or Routine Source Water M/R
—
Lead and Copper Rule
July 1, 2022 – November 9, 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
Initial, Follow-up, or Routine Source Water M/R
—
Lead and Copper Rule
July 1, 2021 – November 5, 2021
Resolved
Monitoring, Regular
—
Styrene
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
Toluene
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
Benzene
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 2020 – December 31, 2022
Archived
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2020 – December 31, 2020
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2020 – December 31, 2020
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2020 – December 31, 2020
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2020 – December 31, 2020
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2020 – December 31, 2020
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2020 – December 31, 2020
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2020 – December 31, 2020
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2020 – December 31, 2020
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2020 – December 31, 2020
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2020 – December 31, 2020
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2020 – December 31, 2020
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2020 – December 31, 2020
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2020 – December 31, 2020
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2020 – December 31, 2020
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2020 – December 31, 2020
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2020 – December 31, 2020
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2020 – December 31, 2020
Resolved
Monitoring, Regular
—
Benzene
January 1, 2020 – December 31, 2020
Resolved
Monitoring, Regular
—
Toluene
January 1, 2020 – December 31, 2020
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2020 – December 31, 2020
Resolved
Monitoring, Regular
—
Styrene
January 1, 2020 – December 31, 2020
Resolved
Monitoring, Regular
—
Endrin
January 1, 2020 – December 31, 2022
Archived
Monitoring, Regular
—
BHC-GAMMA
January 1, 2020 – December 31, 2022
Archived
Monitoring, Regular
—
Methoxychlor
January 1, 2020 – December 31, 2022
Archived
Monitoring, Regular
—
Toxaphene
January 1, 2020 – December 31, 2022
Archived
Monitoring, Regular
—
Dalapon
January 1, 2020 – December 31, 2022
Archived
Monitoring, Regular
—
Diquat
January 1, 2020 – December 31, 2022
Archived
Monitoring, Regular
—
Endothall
January 1, 2020 – December 31, 2022
Archived
Monitoring, Regular
—
Glyphosate
January 1, 2020 – December 31, 2022
Archived
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 2020 – December 31, 2022
Archived
Monitoring, Regular
—
OXAMYL
January 1, 2020 – December 31, 2022
Archived
Monitoring, Regular
—
Simazine
January 1, 2020 – December 31, 2022
Archived
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 2020 – December 31, 2022
Archived
Monitoring, Regular
—
Picloram
January 1, 2020 – December 31, 2022
Archived
Monitoring, Regular
—
Dinoseb
January 1, 2020 – December 31, 2022
Archived
Monitoring, Regular
—
Hexachlorocyclopentadiene
January 1, 2020 – December 31, 2022
Archived
Monitoring, Regular
—
Carbofuran
January 1, 2020 – December 31, 2022
Archived
Monitoring, Regular
—
Atrazine
January 1, 2020 – December 31, 2022
Archived
Monitoring, Regular
—
LASSO
January 1, 2020 – December 31, 2022
Archived
Monitoring, Regular
—
Heptachlor
January 1, 2020 – December 31, 2022
Archived
Monitoring, Regular
—
Heptachlor epoxide
January 1, 2020 – December 31, 2022
Archived
Monitoring, Regular
—
2,4-D
January 1, 2020 – December 31, 2022
Archived
Monitoring, Regular
—
2,4,5-TP
January 1, 2020 – December 31, 2022
Archived
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2020 – December 31, 2022
Archived
Monitoring, Regular
—
Pentachlorophenol
January 1, 2020 – December 31, 2022
Archived
Monitoring, Regular
—
Total Polychlorinated Biphenyls (PCB)
January 1, 2020 – December 31, 2022
Archived
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2020 – December 31, 2022
Archived
Monitoring, Regular
—
ETHYLENE DIBROMIDE
January 1, 2020 – December 31, 2022
Archived
Monitoring, Regular
—
Chlordane
January 1, 2020 – December 31, 2022
Archived
Public Notification Violation for NPDWR Violation
—
Public Notice
July 20, 2019 – July 29, 2019
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
May 1, 2019 – May 31, 2019
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
April 1, 2019 – April 30, 2019
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
March 1, 2019 – March 31, 2019
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
March 1, 2019 – March 31, 2019
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2019 – December 31, 2019
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2016 – September 30, 2016
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 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
October 1, 2014 – October 31, 2014
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
October 1, 2014 – October 31, 2014
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
October 1, 2014 – October 31, 2014
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
December 1, 2013 – December 31, 2013
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
December 1, 2013 – December 31, 2013
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
December 1, 2013 – December 31, 2013
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
October 1, 2013 – October 31, 2013
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2013 – December 31, 2013
Resolved
Monitoring and Reporting (DBP)
—
TTHM
October 1, 2013 – December 31, 2013
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
October 1, 2013 – October 31, 2013
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
October 1, 2013 – October 31, 2013
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
June 1, 2011 – June 30, 2011
Resolved
Monitoring, Regular
—
Picloram
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Dinoseb
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Hexachlorocyclopentadiene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Carbofuran
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Atrazine
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
LASSO
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Heptachlor
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Heptachlor epoxide
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
2,4-D
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
2,4,5-TP
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Pentachlorophenol
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Total Polychlorinated Biphenyls (PCB)
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
ETHYLENE DIBROMIDE
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Chlordane
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Barium
January 1, 2011 – December 31, 2019
Resolved
Monitoring, Regular
—
Selenium
January 1, 2011 – December 31, 2019
Resolved
Monitoring, Regular
—
Thallium, Total
January 1, 2011 – December 31, 2019
Resolved
Monitoring, Regular
—
Beryllium, Total
January 1, 2011 – December 31, 2019
Resolved
Monitoring, Regular
—
Antimony, Total
January 1, 2011 – December 31, 2019
Resolved
Monitoring, Regular
—
Nickel
January 1, 2011 – December 31, 2019
Resolved
Monitoring, Regular
—
Mercury
January 1, 2011 – December 31, 2019
Resolved
Monitoring, Regular
—
Fluoride
January 1, 2011 – December 31, 2019
Resolved
Monitoring, Regular
—
CYANIDE
January 1, 2011 – December 31, 2019
Resolved
Monitoring, Regular
—
Chromium
January 1, 2011 – December 31, 2019
Resolved
Monitoring, Regular
—
Cadmium
January 1, 2011 – December 31, 2019
Resolved
Monitoring, Regular
—
Nitrite
January 1, 2011 – December 31, 2019
Resolved
Monitoring, Regular
—
Endrin
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
BHC-GAMMA
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Methoxychlor
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Toxaphene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Dalapon
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Diquat
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Endothall
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Glyphosate
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
OXAMYL
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Simazine
January 1, 2011 – December 31, 2013
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2011 – March 31, 2011
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2011 – March 31, 2011
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
December 1, 2010 – December 31, 2010
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
December 1, 2010 – December 31, 2010
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2010 – September 30, 2010
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2010 – September 30, 2010
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
April 1, 2010 – April 30, 2010
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
April 1, 2010 – April 30, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
January 1, 2010 – March 31, 2010
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
October 1, 2009 – October 31, 2009
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
October 1, 2009 – October 31, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2009 – December 31, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 2008 – February 29, 2008
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
June 1, 2003 – June 30, 2003
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2001 – December 31, 2001
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
June 1, 2000 – June 30, 2000
Resolved
OCCT/SOWT Study/Recommendation
Health-based
Lead and Copper Rule
June 1, 1994 – May 24, 2000
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
December 1, 1992 – May 31, 1993
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
April 1, 1991 – April 30, 1991
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
March 1, 1991 – March 31, 1991
Resolved
Monitoring, Regular
—
Arsenic
June 24, 1979 – June 23, 1980
Archived
Monitoring, Regular
—
Barium
June 24, 1979 – June 23, 1980
Archived
Monitoring, Regular
—
Cadmium
June 24, 1979 – June 23, 1980
Archived
Monitoring, Regular
—
Chromium
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
—
Fluoride
June 24, 1979 – June 23, 1980
Archived
Monitoring, Regular
—
Mercury
June 24, 1979 – June 23, 1980
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
June 1, 1976 – May 31, 1980
Archived
Monitoring, Regular
—
Combined Radium (-226 and -228)
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
July 1, 2025 – September 3, 2025	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	—	Resolved
January 1, 2025 – December 31, 2025	Monitoring, Regular	Vinyl chloride	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	Styrene	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	Ethylbenzene	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	Toluene	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	Benzene	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	CHLOROBENZENE	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	Tetrachloroethylene	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	1,1,2-Trichloroethane	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	Trichloroethylene	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	1,2-Dichloropropane	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	Carbon tetrachloride	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	1,1,1-Trichloroethane	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	1,2-Dichloroethane	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	1,1-Dichloroethylene	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	Nitrate	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	Xylenes, Total	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	DICHLOROMETHANE	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	o-Dichlorobenzene	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	p-Dichlorobenzene	—	Archived
October 1, 2023 – October 31, 2023	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
October 1, 2023 – October 31, 2023	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
October 1, 2023 – October 16, 2023	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
October 1, 2023 – October 31, 2023	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
August 1, 2023 – August 31, 2023	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
August 1, 2023 – August 31, 2023	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
August 1, 2023 – August 31, 2023	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
July 1, 2023 – October 6, 2023	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	—	Resolved
July 1, 2023 – July 18, 2023	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2023 – December 4, 2023	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	—	Resolved
June 1, 2023 – June 30, 2023	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
June 1, 2023 – June 30, 2023	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
June 1, 2023 – June 30, 2023	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
February 1, 2023 – February 28, 2023	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	Endrin	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Glyphosate	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Endothall	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Diquat	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Dalapon	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Toxaphene	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Methoxychlor	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	BHC-GAMMA	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Endrin	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Chlordane	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Pentachlorophenol	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Benzo(a)pyrene	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	HEXACHLOROBENZENE	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	2,4,5-TP	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	2,4-D	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Heptachlor epoxide	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Heptachlor	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	LASSO	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Atrazine	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Carbofuran	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Hexachlorocyclopentadiene	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Dinoseb	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Picloram	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Simazine	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	OXAMYL	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Glyphosate	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Endothall	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Diquat	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Dalapon	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Toxaphene	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Methoxychlor	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	BHC-GAMMA	—	Archived
January 1, 2023 – August 7, 2023	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	Chlordane	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Pentachlorophenol	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Benzo(a)pyrene	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	HEXACHLOROBENZENE	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	2,4,5-TP	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	2,4-D	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Heptachlor epoxide	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Heptachlor	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	LASSO	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Atrazine	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Carbofuran	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Hexachlorocyclopentadiene	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Dinoseb	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Picloram	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Simazine	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	OXAMYL	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Archived
September 1, 2022 – September 30, 2022	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
September 1, 2022 – September 30, 2022	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
September 1, 2022 – September 30, 2022	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
July 1, 2022 – November 9, 2022	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper 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
July 1, 2021 – November 5, 2021	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	Styrene	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	Toluene	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	Benzene	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	Benzo(a)pyrene	—	Archived
January 1, 2020 – December 31, 2020	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2020 – December 31, 2020	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2020 – December 31, 2020	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2020 – December 31, 2020	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2020 – December 31, 2020	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2020 – December 31, 2020	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2020 – December 31, 2020	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2020 – December 31, 2020	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2020 – December 31, 2020	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2020 – December 31, 2020	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2020 – December 31, 2020	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2020 – December 31, 2020	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2020 – December 31, 2020	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2020 – December 31, 2020	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2020 – December 31, 2020	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2020 – December 31, 2020	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2020 – December 31, 2020	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2020 – December 31, 2020	Monitoring, Regular	Benzene	—	Resolved
January 1, 2020 – December 31, 2020	Monitoring, Regular	Toluene	—	Resolved
January 1, 2020 – December 31, 2020	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2020 – December 31, 2020	Monitoring, Regular	Styrene	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	Endrin	—	Archived
January 1, 2020 – December 31, 2022	Monitoring, Regular	BHC-GAMMA	—	Archived
January 1, 2020 – December 31, 2022	Monitoring, Regular	Methoxychlor	—	Archived
January 1, 2020 – December 31, 2022	Monitoring, Regular	Toxaphene	—	Archived
January 1, 2020 – December 31, 2022	Monitoring, Regular	Dalapon	—	Archived
January 1, 2020 – December 31, 2022	Monitoring, Regular	Diquat	—	Archived
January 1, 2020 – December 31, 2022	Monitoring, Regular	Endothall	—	Archived
January 1, 2020 – December 31, 2022	Monitoring, Regular	Glyphosate	—	Archived
January 1, 2020 – December 31, 2022	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Archived
January 1, 2020 – December 31, 2022	Monitoring, Regular	OXAMYL	—	Archived
January 1, 2020 – December 31, 2022	Monitoring, Regular	Simazine	—	Archived
January 1, 2020 – December 31, 2022	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Archived
January 1, 2020 – December 31, 2022	Monitoring, Regular	Picloram	—	Archived
January 1, 2020 – December 31, 2022	Monitoring, Regular	Dinoseb	—	Archived
January 1, 2020 – December 31, 2022	Monitoring, Regular	Hexachlorocyclopentadiene	—	Archived
January 1, 2020 – December 31, 2022	Monitoring, Regular	Carbofuran	—	Archived
January 1, 2020 – December 31, 2022	Monitoring, Regular	Atrazine	—	Archived
January 1, 2020 – December 31, 2022	Monitoring, Regular	LASSO	—	Archived
January 1, 2020 – December 31, 2022	Monitoring, Regular	Heptachlor	—	Archived
January 1, 2020 – December 31, 2022	Monitoring, Regular	Heptachlor epoxide	—	Archived
January 1, 2020 – December 31, 2022	Monitoring, Regular	2,4-D	—	Archived
January 1, 2020 – December 31, 2022	Monitoring, Regular	2,4,5-TP	—	Archived
January 1, 2020 – December 31, 2022	Monitoring, Regular	HEXACHLOROBENZENE	—	Archived
January 1, 2020 – December 31, 2022	Monitoring, Regular	Pentachlorophenol	—	Archived
January 1, 2020 – December 31, 2022	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Archived
January 1, 2020 – December 31, 2022	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Archived
January 1, 2020 – December 31, 2022	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Archived
January 1, 2020 – December 31, 2022	Monitoring, Regular	Chlordane	—	Archived
July 20, 2019 – July 29, 2019	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
May 1, 2019 – May 31, 2019	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
April 1, 2019 – April 30, 2019	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
March 1, 2019 – March 31, 2019	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
March 1, 2019 – March 31, 2019	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	Nitrate	—	Resolved
July 1, 2016 – September 30, 2016	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 2016 – September 30, 2016	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	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
October 1, 2014 – October 31, 2014	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
October 1, 2014 – October 31, 2014	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
October 1, 2014 – October 31, 2014	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
December 1, 2013 – December 31, 2013	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
December 1, 2013 – December 31, 2013	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
December 1, 2013 – December 31, 2013	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
October 1, 2013 – October 31, 2013	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
October 1, 2013 – December 31, 2013	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
October 1, 2013 – December 31, 2013	Monitoring and Reporting (DBP)	TTHM	—	Resolved
October 1, 2013 – October 31, 2013	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
October 1, 2013 – October 31, 2013	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
June 1, 2011 – June 30, 2011	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Picloram	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Dinoseb	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Hexachlorocyclopentadiene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Carbofuran	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Atrazine	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	LASSO	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Heptachlor	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Heptachlor epoxide	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	2,4-D	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	2,4,5-TP	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Pentachlorophenol	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Chlordane	—	Resolved
January 1, 2011 – December 31, 2019	Monitoring, Regular	Barium	—	Resolved
January 1, 2011 – December 31, 2019	Monitoring, Regular	Selenium	—	Resolved
January 1, 2011 – December 31, 2019	Monitoring, Regular	Thallium, Total	—	Resolved
January 1, 2011 – December 31, 2019	Monitoring, Regular	Beryllium, Total	—	Resolved
January 1, 2011 – December 31, 2019	Monitoring, Regular	Antimony, Total	—	Resolved
January 1, 2011 – December 31, 2019	Monitoring, Regular	Nickel	—	Resolved
January 1, 2011 – December 31, 2019	Monitoring, Regular	Mercury	—	Resolved
January 1, 2011 – December 31, 2019	Monitoring, Regular	Fluoride	—	Resolved
January 1, 2011 – December 31, 2019	Monitoring, Regular	CYANIDE	—	Resolved
January 1, 2011 – December 31, 2019	Monitoring, Regular	Chromium	—	Resolved
January 1, 2011 – December 31, 2019	Monitoring, Regular	Cadmium	—	Resolved
January 1, 2011 – December 31, 2019	Monitoring, Regular	Nitrite	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Endrin	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	BHC-GAMMA	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Methoxychlor	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Toxaphene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Dalapon	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Diquat	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Endothall	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Glyphosate	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	OXAMYL	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Simazine	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring and Reporting (DBP)	TTHM	—	Resolved
December 1, 2010 – December 31, 2010	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
December 1, 2010 – December 31, 2010	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
July 1, 2010 – September 30, 2010	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 2010 – September 30, 2010	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
April 1, 2010 – April 30, 2010	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
April 1, 2010 – April 30, 2010	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
January 1, 2010 – March 31, 2010	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
October 1, 2009 – October 31, 2009	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
October 1, 2009 – October 31, 2009	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
October 1, 2009 – December 31, 2009	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2009 – June 30, 2009	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
February 1, 2008 – February 29, 2008	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
June 1, 2003 – June 30, 2003	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
January 1, 2001 – December 31, 2001	Monitoring, Regular	Nitrate	—	Resolved
June 1, 2000 – June 30, 2000	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
June 1, 1994 – May 24, 2000	OCCT/SOWT Study/Recommendation	Lead and Copper Rule	Health-based	Resolved
December 1, 1992 – May 31, 1993	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
April 1, 1991 – April 30, 1991	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
March 1, 1991 – March 31, 1991	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
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	Cadmium	—	Archived
June 24, 1979 – June 23, 1980	Monitoring, Regular	Chromium	—	Archived
June 24, 1979 – June 23, 1980	Monitoring, Regular	Nitrate	—	Archived
June 24, 1979 – June 23, 1980	Monitoring, Regular	Selenium	—	Archived
June 24, 1979 – June 23, 1980	Monitoring, Regular	Fluoride	—	Archived
June 24, 1979 – June 23, 1980	Monitoring, Regular	Mercury	—	Archived
June 1, 1976 – May 31, 1980	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
June 1, 1976 – May 31, 1980	Monitoring, Regular	Combined Radium (-226 and -228)	—	Archived

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

Enforcement actions

September 3, 2025State Compliance achieved1 linked violation
December 4, 2023State Compliance achieved3 linked violations
December 4, 2023State Compliance achieved3 linked violations
December 4, 2023State Compliance achieved1 linked violation
October 16, 2023State Compliance achieved1 linked violation
October 6, 2023State Compliance achieved3 linked violations
October 6, 2023State Compliance achieved1 linked violation
August 7, 2023State Compliance achieved4 linked violations
August 7, 2023State Compliance achieved1 linked violation
July 18, 2023State Compliance achieved1 linked violation
March 16, 2023State Compliance achieved1 linked violation
November 9, 2022State Compliance achieved3 linked violations
November 9, 2022State Compliance achieved1 linked violation
September 10, 2022State Compliance achieved2 linked violations
September 10, 2022State Compliance achieved6 linked violations
September 10, 2022State Compliance achieved2 linked violations
September 10, 2022State Compliance achieved1 linked violation
August 16, 2022State Compliance achieved1 linked violation
August 16, 2022State Compliance achieved1 linked violation
August 16, 2022State Compliance achieved1 linked violation
August 16, 2022State Compliance achieved1 linked violation
August 16, 2022State Compliance achieved1 linked violation
August 16, 2022State Compliance achieved1 linked violation
August 16, 2022State Compliance achieved1 linked violation
August 16, 2022State Compliance achieved1 linked violation
August 16, 2022State Compliance achieved2 linked violations
August 16, 2022State Compliance achieved1 linked violation
August 16, 2022State Compliance achieved1 linked violation
August 16, 2022State Compliance achieved3 linked violations
August 16, 2022State Compliance achieved1 linked violation
August 16, 2022State Compliance achieved1 linked violation
August 16, 2022State Compliance achieved1 linked violation
August 16, 2022State Compliance achieved1 linked violation
August 16, 2022State Compliance achieved2 linked violations
August 16, 2022State Compliance achieved1 linked violation
August 16, 2022State Compliance achieved1 linked violation
August 16, 2022State Compliance achieved2 linked violations
August 16, 2022State Compliance achieved1 linked violation
August 16, 2022State Compliance achieved1 linked violation
August 16, 2022State Compliance achieved1 linked violation
August 16, 2022State Compliance achieved1 linked violation
August 16, 2022State Compliance achieved2 linked violations
August 16, 2022State Compliance achieved1 linked violation
August 16, 2022State Compliance achieved2 linked violations
August 16, 2022State Compliance achieved1 linked violation
August 16, 2022State Compliance achieved4 linked violations
August 16, 2022State Compliance achieved2 linked violations
August 16, 2022State Compliance achieved1 linked violation
August 16, 2022State Compliance achieved1 linked violation
November 5, 2021State Compliance achieved3 linked violations
November 5, 2021State Compliance achieved1 linked violation
September 22, 2020State Compliance achieved1 linked violation
September 22, 2020State Compliance achieved1 linked violation
July 29, 2019State Compliance achieved1 linked violation
July 26, 2019State Compliance achieved1 linked violation
July 5, 2019State Compliance achieved4 linked violations
June 19, 2019State Public Notification requested1 linked violation
June 16, 2019State Public Notification received1 linked violation
May 15, 2019State Public Notification requested1 linked violation
April 18, 2019State Public Notification requested1 linked violation
April 18, 2019State Public Notification requested1 linked violation
March 21, 2019State Public Notification received1 linked violation
March 21, 2019State Public Notification received1 linked violation
October 13, 2016State Compliance achieved2 linked violations
August 4, 2016State Compliance achieved3 linked violations
December 5, 2014State Compliance achieved3 linked violations
May 1, 2014State Compliance achieved28 linked violations
April 9, 2014State Compliance achieved2 linked violations
February 10, 2014State Compliance achieved3 linked violations
December 6, 2013State Compliance achieved3 linked violations
August 3, 2011State Public Notification received1 linked violation
August 1, 2011State Violation/Reminder Notice3 linked violations
July 27, 2011State Public Notification requested1 linked violation
July 23, 2011State Compliance achieved1 linked violation
June 8, 2011State Compliance achieved1 linked violation
June 8, 2011State Compliance achieved1 linked violation
April 25, 2011State Violation/Reminder Notice2 linked violations
February 18, 2011State Compliance achieved4 linked violations
February 8, 2011State Compliance achieved1 linked violation
February 8, 2011State Compliance achieved1 linked violation
January 24, 2011State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
January 14, 2011State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
January 10, 2011State Compliance achieved1 linked violation
January 10, 2011State Compliance achieved1 linked violation
December 29, 2010State Compliance achieved1 linked violation
December 27, 2010State Violation/Reminder Notice1 linked violation
October 26, 2010State Violation/Reminder Notice2 linked violations
May 24, 2010State Violation/Reminder Notice2 linked violations
February 22, 2010State Violation/Reminder Notice3 linked violations
August 31, 2009State Violation/Reminder Notice1 linked violation
May 31, 2005State Public Notification received1 linked violation
April 11, 2005State Compliance achieved21 linked violations
February 11, 2005State Public Notification received1 linked violation
August 20, 2004State Compliance achieved2 linked violations
July 10, 2003State Public Notification received1 linked violation
June 19, 2000State Compliance achieved1 linked violation
March 24, 1998State Administrative/Compliance Order with penalty issued1 linked violation

Contact

COQUILLE, CITY OF

541-396-4336

COQUILLE, OR 97423-1253