NOGALES, AZ · Santa Cruz County
NOGALES CITY OF Water System
Current status
1 item on record is open and awaiting resolution as of July 4, 2026. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings. Full details are in the violation history below.
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 Arizona’s official records. Always confirm current status with Arizona before making decisions based on this information.
System facts
- System ID (PWSID)
- AZ0412004
- System type
- Community Water System
- Population served
- 22,000
- Service connections
- 5,400
- Ownership
- local government
- Water source
- groundwater (wells)
Violation history
Monitoring, Regular
—Arsenic
October 1, 2025 – December 31, 2025
ArchivedMonitoring, Regular
—Arsenic
July 1, 2025 – September 30, 2025
ArchivedMonitoring and Reporting (DBP)
—Chlorine
July 1, 2025 – July 31, 2025
ArchivedPublic Notification Violation for NPDWR Violation
—Public Notice
December 20, 2024 – February 6, 2025
ResolvedLSL Reporting
—LEAD AND COPPER RULE REVISIONS
October 17, 2024
AddressedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
October 1, 2023 – December 31, 2023
ResolvedMonitoring, Regular
—Nitrate
January 1, 2023 – December 31, 2023
ResolvedPublic Notification Violation for NPDWR Violation
—Public Notice
February 13, 2020 – February 23, 2021
ResolvedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
August 1, 2019 – October 31, 2019
ResolvedMonitoring, Regular
—Dalapon
January 1, 2018 – July 19, 2018
ResolvedMonitoring, Regular
—Methoxychlor
January 1, 2018 – July 19, 2018
ResolvedMonitoring, Regular
—CYANIDE
January 1, 2018 – July 19, 2018
ResolvedMonitoring, Regular
—Arsenic
January 1, 2018 – July 19, 2018
ResolvedMonitoring, Regular
—Selenium
January 1, 2018 – July 19, 2018
ResolvedMonitoring, Regular
—Arsenic
January 1, 2018 – July 19, 2018
ResolvedMonitoring, Regular
—ETHYLENE DIBROMIDE
January 1, 2018 – July 19, 2018
ResolvedMonitoring, Regular
—1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2018 – July 19, 2018
ResolvedMonitoring, Regular
—Heptachlor epoxide
January 1, 2018 – July 19, 2018
ResolvedMonitoring, Regular
—Dinoseb
January 1, 2018 – July 19, 2018
ResolvedMonitoring, Regular
—Simazine
January 1, 2018 – July 19, 2018
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) adipate
January 1, 2018 – July 19, 2018
ResolvedMonitoring, Regular
—Benzene
January 1, 2018 – July 19, 2018
ResolvedMonitoring, Regular
—p-Dichlorobenzene
January 1, 2018 – July 19, 2018
ResolvedMonitoring, Regular
—DICHLOROMETHANE
January 1, 2018 – July 19, 2018
ResolvedMonitoring, Regular
—Xylenes, Total
January 1, 2018 – July 19, 2018
ResolvedMonitoring, Regular
—Barium
January 1, 2018 – July 19, 2018
ResolvedMonitoring, Regular
—1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2018 – July 19, 2018
ResolvedMonitoring, Regular
—OXAMYL
January 1, 2018 – July 19, 2018
ResolvedMonitoring, Regular
—Endrin
January 1, 2018 – July 19, 2018
ResolvedMonitoring, Regular
—Radium-226
January 1, 2018 – July 19, 2018
ResolvedMonitoring, Regular
—Atrazine
January 1, 2018 – July 19, 2018
ResolvedMonitoring, Regular
—2,4-D
January 1, 2018 – December 31, 2020
ResolvedMonitoring, Regular
—Benzo(a)pyrene
January 1, 2018 – July 19, 2018
ResolvedMonitoring, Regular
—HEXACHLOROBENZENE
January 1, 2018 – July 19, 2018
ResolvedMonitoring, Regular
—2,4,5-TP
January 1, 2018 – July 19, 2018
ResolvedMonitoring, Regular
—2,4-D
January 1, 2018 – July 19, 2018
ResolvedMonitoring, Regular
—2,3,7,8-TCDD
January 1, 2018 – July 19, 2018
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) adipate
January 1, 2018 – July 19, 2018
ResolvedMonitoring, Regular
—Endothall
January 1, 2018 – July 19, 2018
ResolvedMonitoring, Regular
—Nitrate
January 1, 2018 – July 19, 2018
ResolvedMonitoring, Regular
—Arsenic
April 1, 2017 – June 30, 2017
ResolvedReport Sample Result/Fail Monitor (RTCR)
—Revised Total Coliform Rule
April 1, 2017 – May 24, 2017
ResolvedReport Sample Result/Fail Monitor (RTCR)
—Revised Total Coliform Rule
March 1, 2017 – April 14, 2017
ResolvedMonitoring, Regular
—Nitrate
January 1, 2017 – December 31, 2017
ResolvedMonitoring, Regular
—Arsenic
January 1, 2017 – March 31, 2017
ResolvedReporting, Assessment Forms (RTCR)
—Revised Total Coliform Rule
November 10, 2016 – April 18, 2017
ResolvedMonitoring, Routine (RTCR)
—Revised Total Coliform Rule
November 1, 2016 – November 30, 2016
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2016 – February 15, 2017
ResolvedMonitoring and Reporting (DBP)
—Chlorine
July 1, 2016 – September 30, 2016
ResolvedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
May 1, 2016 – July 31, 2016
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
March 1, 2016 – March 31, 2016
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
February 1, 2016 – February 29, 2016
ResolvedMonitoring, Regular
—Arsenic
January 1, 2016 – March 31, 2016
ResolvedMonitoring, Regular
—Arsenic
January 1, 2016 – March 31, 2016
ResolvedMonitoring and Reporting (DBP)
—Chlorine
October 1, 2015 – December 31, 2015
ResolvedMonitoring, Regular
—Arsenic
October 1, 2015 – December 31, 2015
ResolvedMonitoring, Regular
—Arsenic
July 1, 2015 – September 30, 2015
ResolvedMonitoring, Regular
—Arsenic
July 1, 2015 – September 30, 2015
ResolvedMonitoring and Reporting (DBP)
—Chlorine
July 1, 2015 – September 30, 2015
ResolvedMonitoring, Regular
—Arsenic
April 1, 2015 – June 30, 2015
ResolvedMonitoring, Regular
—Arsenic
April 1, 2015 – June 30, 2015
ResolvedMonitoring, Regular
—2,4-D
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Nitrate
January 1, 2015 – December 31, 2015
ResolvedMonitoring, Regular
—Nitrate
January 1, 2015 – December 31, 2015
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
January 1, 2015 – December 31, 2015
ResolvedMonitoring, Regular
—DICHLOROMETHANE
January 1, 2015 – December 31, 2015
ResolvedMonitoring, Regular
—Vinyl chloride
January 1, 2015 – December 31, 2015
ResolvedMonitoring, Regular
—1,2-Dichloroethane
January 1, 2015 – December 31, 2015
ResolvedMonitoring, Regular
—1,2-Dichloropropane
January 1, 2015 – December 31, 2015
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
January 1, 2015 – December 31, 2015
ResolvedMonitoring, Regular
—Ethylbenzene
January 1, 2015 – December 31, 2015
ResolvedMonitoring, Regular
—Cadmium
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Fluoride
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Thallium, Total
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Nickel
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Selenium
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Mercury
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Barium
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—CYANIDE
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Cadmium
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Fluoride
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Chromium
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Nickel
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Selenium
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Mercury
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—CYANIDE
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Thallium, Total
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Beryllium, Total
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Selenium
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Mercury
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Barium
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Combined Uranium
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Combined Radium (-226 and -228)
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Radium-226
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Radium-228
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Combined Uranium
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Radium-228
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Arsenic
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Barium
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Cadmium
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Chromium
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Fluoride
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Mercury
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Nickel
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Antimony, Total
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Beryllium, Total
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Thallium, Total
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Selenium
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Arsenic
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Barium
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Cadmium
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Antimony, Total
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—1,2-Dichloroethane
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—1,2-Dichloropropane
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Toluene
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Ethylbenzene
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Xylenes, Total
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—o-Dichlorobenzene
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—1,2-Dichloroethane
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—1,2-Dichloropropane
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Trichloroethylene
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—CHLOROBENZENE
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Carbon tetrachloride
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—CHLOROBENZENE
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Styrene
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Toxaphene
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Dalapon
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Endothall
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—OXAMYL
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—2,4,5-TP
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—ETHYLENE DIBROMIDE
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—BHC-GAMMA
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Diquat
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) adipate
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Simazine
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) phthalate
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Hexachlorocyclopentadiene
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Atrazine
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Pentachlorophenol
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—LASSO
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—2,4,5-TP
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Pentachlorophenol
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Endrin
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Simazine
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) phthalate
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Picloram
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Dinoseb
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Hexachlorocyclopentadiene
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—HEXACHLOROBENZENE
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Benzo(a)pyrene
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Glyphosate
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) adipate
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Carbofuran
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Chlordane
January 1, 2015 – December 31, 2017
ResolvedMonitoring, Regular
—Combined Radium (-226 and -228)
January 1, 2015 – July 19, 2018
ResolvedMonitoring, Regular
—Arsenic
July 1, 2014 – September 30, 2014
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2014 – July 17, 2014
ResolvedMonitoring, Regular
—Arsenic
July 1, 2014 – September 30, 2014
ResolvedMonitoring, Regular
—Arsenic
July 1, 2014 – September 30, 2014
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
August 1, 2013 – August 31, 2013
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2013 – September 26, 2013
ResolvedMonitoring and Reporting (DBP)
—Chlorine
July 1, 2012 – September 30, 2012
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2012 – September 17, 2012
ResolvedConsumer Confidence Report Inadequate Reporting
—Consumer Confidence Rule
October 1, 2011 – October 12, 2011
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2011 – October 12, 2011
ResolvedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
July 1, 2011 – September 30, 2011
ResolvedMonitoring and Reporting (DBP)
—TTHM
July 1, 2011 – September 30, 2011
ResolvedMaximum Contaminant Level Violation, Average
Health-basedArsenic
July 1, 2010 – September 30, 2010
ResolvedMonitoring, Regular
—Arsenic
October 1, 2009 – December 31, 2009
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
September 1, 2009 – September 30, 2009
ResolvedMonitoring, Regular
—Arsenic
July 1, 2009 – September 30, 2009
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
May 1, 2009 – May 31, 2009
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
April 1, 2009 – April 30, 2009
ResolvedMonitoring, Regular
—Arsenic
April 1, 2009 – June 30, 2009
ResolvedMonitoring, Regular
—Arsenic
April 1, 2009 – June 30, 2009
ResolvedMonitoring, Regular
—Dinoseb
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—Picloram
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) phthalate
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—Simazine
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—OXAMYL
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—Endothall
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—HEXACHLOROBENZENE
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—2,4-D
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—Heptachlor epoxide
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—Heptachlor
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—Carbofuran
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—Dinoseb
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—OXAMYL
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—Glyphosate
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—Diquat
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—Benzo(a)pyrene
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—HEXACHLOROBENZENE
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—2,4,5-TP
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—2,4-D
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—Heptachlor
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—2,3,7,8-TCDD
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—LASSO
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—Carbofuran
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—Hexachlorocyclopentadiene
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—Diquat
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—Glyphosate
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—ETHYLENE DIBROMIDE
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—Dinoseb
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—Simazine
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—Toxaphene
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—Heptachlor epoxide
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—2,3,7,8-TCDD
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—BHC-GAMMA
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—2,4-D
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—Atrazine
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—Hexachlorocyclopentadiene
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—Picloram
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—Pentachlorophenol
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) adipate
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—Endothall
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—Endrin
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—BHC-GAMMA
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—Toxaphene
January 1, 2009 – December 31, 2011
ResolvedMonitoring, Regular
—Arsenic
October 1, 2008 – December 31, 2008
ResolvedMonitoring, Regular
—Arsenic
October 1, 2008 – December 31, 2008
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
August 1, 2008 – August 31, 2008
ResolvedMonitoring, Regular
—Arsenic
July 1, 2008 – September 30, 2008
ResolvedMonitoring, Regular
—Nitrate
January 1, 2008 – December 31, 2008
ResolvedMonitoring, Regular
—Arsenic
January 1, 2008 – March 31, 2008
ResolvedMonitoring, Regular
—Nitrate
January 1, 2008 – December 31, 2008
ResolvedMonitoring, Regular
—Nitrate
January 1, 2008 – December 31, 2008
ResolvedMaximum Contaminant Level Violation, Single Sample
Health-basedArsenic
October 1, 2007 – December 31, 2007
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
August 1, 2007 – August 31, 2007
ResolvedMonitoring, Repeat Minor (TCR)
—Coliform (TCR)
November 1, 2006 – November 30, 2006
ResolvedMonitoring and Reporting (DBP)
—TTHM
October 1, 2006 – December 31, 2006
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2006 – April 16, 2007
ResolvedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—Endrin
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—HEXACHLOROBENZENE
January 1, 2006 – December 31, 2008
ResolvedMonitoring and Reporting (DBP)
—TTHM
January 1, 2006 – March 31, 2006
ResolvedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—2,3,7,8-TCDD
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—Pentachlorophenol
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—Dinoseb
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—Dinoseb
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—Heptachlor
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—Carbofuran
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—Picloram
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—Glyphosate
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—LASSO
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—Endothall
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—Carbofuran
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—Heptachlor
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—BHC-GAMMA
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—LASSO
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—Endothall
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—Atrazine
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—Methoxychlor
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) phthalate
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—Glyphosate
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—BHC-GAMMA
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—Glyphosate
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—Carbofuran
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—Diquat
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—Toxaphene
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—2,4-D
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—2,4-D
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—Dalapon
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—Heptachlor epoxide
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—Chlordane
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—2,3,7,8-TCDD
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—ETHYLENE DIBROMIDE
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—Diquat
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—Heptachlor
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—Simazine
January 1, 2006 – December 31, 2008
ResolvedMonitoring, Regular
—Pentachlorophenol
January 1, 2006 – December 31, 2008
ResolvedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
July 1, 2005 – September 30, 2005
ResolvedMonitoring, Regular
—Radium-226
January 1, 2004 – December 31, 2007
ResolvedMonitoring, Regular
—Nitrate
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Radium-226
January 1, 2004 – December 31, 2007
ResolvedMonitoring, Regular
—Nickel
January 1, 2003 – December 31, 2005
ResolvedMonitoring, Regular
—ETHYLENE DIBROMIDE
January 1, 2000 – December 31, 2000
ResolvedMonitoring, Regular
—Carbofuran
January 1, 2000 – December 31, 2000
ResolvedMonitoring, Regular
—Ethylbenzene
January 1, 1987 – July 1, 1990
ArchivedMonitoring, Regular
—cis-1,2-Dichloroethylene
January 1, 1987 – July 1, 1990
ArchivedMonitoring, Regular
—Styrene
January 1, 1987 – July 1, 1990
ArchivedMonitoring, Regular
—o-Dichlorobenzene
January 1, 1987 – July 1, 1990
ArchivedMonitoring, Regular
—trans-1,2-Dichloroethylene
January 1, 1987 – July 1, 1990
ArchivedMonitoring, Regular
—Trichloroethylene
January 1, 1987 – July 1, 1990
ArchivedMonitoring, Regular
—Benzene
January 1, 1987 – July 1, 1990
ArchivedMonitoring, Check/Repeat/Confirmation
—Fluoride
June 24, 1980 – July 23, 1980
Archived
Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the stateAddressed corrective action reported, pending final confirmation
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| October 1, 2025 – December 31, 2025 | Monitoring, Regular | Arsenic | — | Archived |
| July 1, 2025 – September 30, 2025 | Monitoring, Regular | Arsenic | — | Archived |
| July 1, 2025 – July 31, 2025 | Monitoring and Reporting (DBP) | Chlorine | — | Archived |
| December 20, 2024 – February 6, 2025 | Public Notification Violation for NPDWR Violation | Public Notice | — | Resolved |
| October 17, 2024 | LSL Reporting | LEAD AND COPPER RULE REVISIONS | — | Addressed |
| October 1, 2023 – December 31, 2023 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| January 1, 2023 – December 31, 2023 | Monitoring, Regular | Nitrate | — | Resolved |
| February 13, 2020 – February 23, 2021 | Public Notification Violation for NPDWR Violation | Public Notice | — | Resolved |
| August 1, 2019 – October 31, 2019 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| January 1, 2018 – July 19, 2018 | Monitoring, Regular | Dalapon | — | Resolved |
| January 1, 2018 – July 19, 2018 | Monitoring, Regular | Methoxychlor | — | Resolved |
| January 1, 2018 – July 19, 2018 | Monitoring, Regular | CYANIDE | — | Resolved |
| January 1, 2018 – July 19, 2018 | Monitoring, Regular | Arsenic | — | Resolved |
| January 1, 2018 – July 19, 2018 | Monitoring, Regular | Selenium | — | Resolved |
| January 1, 2018 – July 19, 2018 | Monitoring, Regular | Arsenic | — | Resolved |
| January 1, 2018 – July 19, 2018 | Monitoring, Regular | ETHYLENE DIBROMIDE | — | Resolved |
| January 1, 2018 – July 19, 2018 | Monitoring, Regular | 1,2-DIBROMO-3-CHLOROPROPANE | — | Resolved |
| January 1, 2018 – July 19, 2018 | Monitoring, Regular | Heptachlor epoxide | — | Resolved |
| January 1, 2018 – July 19, 2018 | Monitoring, Regular | Dinoseb | — | Resolved |
| January 1, 2018 – July 19, 2018 | Monitoring, Regular | Simazine | — | Resolved |
| January 1, 2018 – July 19, 2018 | Monitoring, Regular | Di(2-ethylhexyl) adipate | — | Resolved |
| January 1, 2018 – July 19, 2018 | Monitoring, Regular | Benzene | — | Resolved |
| January 1, 2018 – July 19, 2018 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| January 1, 2018 – July 19, 2018 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| January 1, 2018 – July 19, 2018 | Monitoring, Regular | Xylenes, Total | — | Resolved |
| January 1, 2018 – July 19, 2018 | Monitoring, Regular | Barium | — | Resolved |
| January 1, 2018 – July 19, 2018 | Monitoring, Regular | 1,2-DIBROMO-3-CHLOROPROPANE | — | Resolved |
| January 1, 2018 – July 19, 2018 | Monitoring, Regular | OXAMYL | — | Resolved |
| January 1, 2018 – July 19, 2018 | Monitoring, Regular | Endrin | — | Resolved |
| January 1, 2018 – July 19, 2018 | Monitoring, Regular | Radium-226 | — | Resolved |
| January 1, 2018 – July 19, 2018 | Monitoring, Regular | Atrazine | — | Resolved |
| January 1, 2018 – December 31, 2020 | Monitoring, Regular | 2,4-D | — | Resolved |
| January 1, 2018 – July 19, 2018 | Monitoring, Regular | Benzo(a)pyrene | — | Resolved |
| January 1, 2018 – July 19, 2018 | Monitoring, Regular | HEXACHLOROBENZENE | — | Resolved |
| January 1, 2018 – July 19, 2018 | Monitoring, Regular | 2,4,5-TP | — | Resolved |
| January 1, 2018 – July 19, 2018 | Monitoring, Regular | 2,4-D | — | Resolved |
| January 1, 2018 – July 19, 2018 | Monitoring, Regular | 2,3,7,8-TCDD | — | Resolved |
| January 1, 2018 – July 19, 2018 | Monitoring, Regular | Di(2-ethylhexyl) adipate | — | Resolved |
| January 1, 2018 – July 19, 2018 | Monitoring, Regular | Endothall | — | Resolved |
| January 1, 2018 – July 19, 2018 | Monitoring, Regular | Nitrate | — | Resolved |
| April 1, 2017 – June 30, 2017 | Monitoring, Regular | Arsenic | — | Resolved |
| April 1, 2017 – May 24, 2017 | Report Sample Result/Fail Monitor (RTCR) | Revised Total Coliform Rule | — | Resolved |
| March 1, 2017 – April 14, 2017 | Report Sample Result/Fail Monitor (RTCR) | Revised Total Coliform Rule | — | Resolved |
| January 1, 2017 – December 31, 2017 | Monitoring, Regular | Nitrate | — | Resolved |
| January 1, 2017 – March 31, 2017 | Monitoring, Regular | Arsenic | — | Resolved |
| November 10, 2016 – April 18, 2017 | Reporting, Assessment Forms (RTCR) | Revised Total Coliform Rule | — | Resolved |
| November 1, 2016 – November 30, 2016 | Monitoring, Routine (RTCR) | Revised Total Coliform Rule | — | Resolved |
| July 1, 2016 – February 15, 2017 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| July 1, 2016 – September 30, 2016 | Monitoring and Reporting (DBP) | Chlorine | — | Resolved |
| May 1, 2016 – July 31, 2016 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| March 1, 2016 – March 31, 2016 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Resolved |
| February 1, 2016 – February 29, 2016 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| January 1, 2016 – March 31, 2016 | Monitoring, Regular | Arsenic | — | Resolved |
| January 1, 2016 – March 31, 2016 | Monitoring, Regular | Arsenic | — | Resolved |
| October 1, 2015 – December 31, 2015 | Monitoring and Reporting (DBP) | Chlorine | — | Resolved |
| October 1, 2015 – December 31, 2015 | Monitoring, Regular | Arsenic | — | Resolved |
| July 1, 2015 – September 30, 2015 | Monitoring, Regular | Arsenic | — | Resolved |
| July 1, 2015 – September 30, 2015 | Monitoring, Regular | Arsenic | — | Resolved |
| July 1, 2015 – September 30, 2015 | Monitoring and Reporting (DBP) | Chlorine | — | Resolved |
| April 1, 2015 – June 30, 2015 | Monitoring, Regular | Arsenic | — | Resolved |
| April 1, 2015 – June 30, 2015 | Monitoring, Regular | Arsenic | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | 2,4-D | — | Resolved |
| January 1, 2015 – December 31, 2015 | Monitoring, Regular | Nitrate | — | Resolved |
| January 1, 2015 – December 31, 2015 | Monitoring, Regular | Nitrate | — | Resolved |
| January 1, 2015 – December 31, 2015 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| January 1, 2015 – December 31, 2015 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| January 1, 2015 – December 31, 2015 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| January 1, 2015 – December 31, 2015 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| January 1, 2015 – December 31, 2015 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| January 1, 2015 – December 31, 2015 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| January 1, 2015 – December 31, 2015 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Cadmium | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Fluoride | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Thallium, Total | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Nickel | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Selenium | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Mercury | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Barium | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | CYANIDE | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Cadmium | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Fluoride | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Chromium | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Nickel | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Selenium | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Mercury | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | CYANIDE | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Thallium, Total | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Beryllium, Total | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Selenium | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Mercury | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Barium | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Combined Uranium | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Combined Radium (-226 and -228) | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Radium-226 | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Radium-228 | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Combined Uranium | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Radium-228 | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Arsenic | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Barium | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Cadmium | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Chromium | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Fluoride | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Mercury | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Nickel | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Antimony, Total | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Beryllium, Total | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Thallium, Total | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Selenium | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Arsenic | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Barium | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Cadmium | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Antimony, Total | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Toluene | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Xylenes, Total | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Styrene | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Toxaphene | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Dalapon | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Endothall | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | OXAMYL | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | 2,4,5-TP | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | 1,2-DIBROMO-3-CHLOROPROPANE | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | ETHYLENE DIBROMIDE | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | BHC-GAMMA | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Diquat | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Di(2-ethylhexyl) adipate | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Simazine | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Di(2-ethylhexyl) phthalate | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Hexachlorocyclopentadiene | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Atrazine | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Pentachlorophenol | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | LASSO | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | 2,4,5-TP | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Pentachlorophenol | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Endrin | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Simazine | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Di(2-ethylhexyl) phthalate | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Picloram | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Dinoseb | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Hexachlorocyclopentadiene | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | HEXACHLOROBENZENE | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Benzo(a)pyrene | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Glyphosate | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Di(2-ethylhexyl) adipate | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Carbofuran | — | Resolved |
| January 1, 2015 – December 31, 2017 | Monitoring, Regular | Chlordane | — | Resolved |
| January 1, 2015 – July 19, 2018 | Monitoring, Regular | Combined Radium (-226 and -228) | — | Resolved |
| July 1, 2014 – September 30, 2014 | Monitoring, Regular | Arsenic | — | Resolved |
| July 1, 2014 – July 17, 2014 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| July 1, 2014 – September 30, 2014 | Monitoring, Regular | Arsenic | — | Resolved |
| July 1, 2014 – September 30, 2014 | Monitoring, Regular | Arsenic | — | Resolved |
| August 1, 2013 – August 31, 2013 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| July 1, 2013 – September 26, 2013 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| July 1, 2012 – September 30, 2012 | Monitoring and Reporting (DBP) | Chlorine | — | Resolved |
| July 1, 2012 – September 17, 2012 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| October 1, 2011 – October 12, 2011 | Consumer Confidence Report Inadequate Reporting | Consumer Confidence Rule | — | Resolved |
| July 1, 2011 – October 12, 2011 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| July 1, 2011 – September 30, 2011 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| July 1, 2011 – September 30, 2011 | Monitoring and Reporting (DBP) | TTHM | — | Resolved |
| July 1, 2010 – September 30, 2010 | Maximum Contaminant Level Violation, Average | Arsenic | Health-based | Resolved |
| October 1, 2009 – December 31, 2009 | Monitoring, Regular | Arsenic | — | Resolved |
| September 1, 2009 – September 30, 2009 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| July 1, 2009 – September 30, 2009 | Monitoring, Regular | Arsenic | — | Resolved |
| May 1, 2009 – May 31, 2009 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Resolved |
| April 1, 2009 – April 30, 2009 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| April 1, 2009 – June 30, 2009 | Monitoring, Regular | Arsenic | — | Resolved |
| April 1, 2009 – June 30, 2009 | Monitoring, Regular | Arsenic | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | Dinoseb | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | Picloram | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | Di(2-ethylhexyl) phthalate | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | Simazine | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | OXAMYL | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | Endothall | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | HEXACHLOROBENZENE | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | 2,4-D | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | Heptachlor epoxide | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | Heptachlor | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | Carbofuran | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | Dinoseb | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | OXAMYL | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | Glyphosate | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | Diquat | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | 1,2-DIBROMO-3-CHLOROPROPANE | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | Benzo(a)pyrene | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | HEXACHLOROBENZENE | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | 2,4,5-TP | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | 2,4-D | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | Heptachlor | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | 2,3,7,8-TCDD | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | LASSO | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | Carbofuran | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | Hexachlorocyclopentadiene | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | Diquat | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | Glyphosate | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | ETHYLENE DIBROMIDE | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | 1,2-DIBROMO-3-CHLOROPROPANE | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | Dinoseb | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | Simazine | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | Toxaphene | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | Heptachlor epoxide | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | 2,3,7,8-TCDD | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | BHC-GAMMA | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | 2,4-D | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | Atrazine | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | Hexachlorocyclopentadiene | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | Picloram | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | Pentachlorophenol | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | Di(2-ethylhexyl) adipate | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | Endothall | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | Endrin | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | BHC-GAMMA | — | Resolved |
| January 1, 2009 – December 31, 2011 | Monitoring, Regular | Toxaphene | — | Resolved |
| October 1, 2008 – December 31, 2008 | Monitoring, Regular | Arsenic | — | Resolved |
| October 1, 2008 – December 31, 2008 | Monitoring, Regular | Arsenic | — | Resolved |
| August 1, 2008 – August 31, 2008 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| July 1, 2008 – September 30, 2008 | Monitoring, Regular | Arsenic | — | Resolved |
| January 1, 2008 – December 31, 2008 | Monitoring, Regular | Nitrate | — | Resolved |
| January 1, 2008 – March 31, 2008 | Monitoring, Regular | Arsenic | — | Resolved |
| January 1, 2008 – December 31, 2008 | Monitoring, Regular | Nitrate | — | Resolved |
| January 1, 2008 – December 31, 2008 | Monitoring, Regular | Nitrate | — | Resolved |
| October 1, 2007 – December 31, 2007 | Maximum Contaminant Level Violation, Single Sample | Arsenic | Health-based | Resolved |
| August 1, 2007 – August 31, 2007 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| November 1, 2006 – November 30, 2006 | Monitoring, Repeat Minor (TCR) | Coliform (TCR) | — | Resolved |
| October 1, 2006 – December 31, 2006 | Monitoring and Reporting (DBP) | TTHM | — | Resolved |
| July 1, 2006 – April 16, 2007 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | Endrin | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | HEXACHLOROBENZENE | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring and Reporting (DBP) | TTHM | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | 2,3,7,8-TCDD | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | Pentachlorophenol | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | Dinoseb | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | Dinoseb | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | Heptachlor | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | Carbofuran | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | Picloram | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | Glyphosate | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | LASSO | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | Endothall | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | Carbofuran | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | Heptachlor | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | BHC-GAMMA | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | LASSO | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | Endothall | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | Atrazine | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | Methoxychlor | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | Di(2-ethylhexyl) phthalate | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | Glyphosate | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | BHC-GAMMA | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | Glyphosate | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | Carbofuran | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | Diquat | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | Toxaphene | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | 1,2-DIBROMO-3-CHLOROPROPANE | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | 1,2-DIBROMO-3-CHLOROPROPANE | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | 2,4-D | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | 2,4-D | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | Dalapon | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | Heptachlor epoxide | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | Chlordane | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | 2,3,7,8-TCDD | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | ETHYLENE DIBROMIDE | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | Diquat | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | Heptachlor | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | Simazine | — | Resolved |
| January 1, 2006 – December 31, 2008 | Monitoring, Regular | Pentachlorophenol | — | Resolved |
| July 1, 2005 – September 30, 2005 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| January 1, 2004 – December 31, 2007 | Monitoring, Regular | Radium-226 | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | Nitrate | — | Resolved |
| January 1, 2004 – December 31, 2007 | Monitoring, Regular | Radium-226 | — | Resolved |
| January 1, 2003 – December 31, 2005 | Monitoring, Regular | Nickel | — | Resolved |
| January 1, 2000 – December 31, 2000 | Monitoring, Regular | ETHYLENE DIBROMIDE | — | Resolved |
| January 1, 2000 – December 31, 2000 | Monitoring, Regular | Carbofuran | — | Resolved |
| January 1, 1987 – July 1, 1990 | Monitoring, Regular | Ethylbenzene | — | Archived |
| January 1, 1987 – July 1, 1990 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Archived |
| January 1, 1987 – July 1, 1990 | Monitoring, Regular | Styrene | — | Archived |
| January 1, 1987 – July 1, 1990 | Monitoring, Regular | o-Dichlorobenzene | — | Archived |
| January 1, 1987 – July 1, 1990 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Archived |
| January 1, 1987 – July 1, 1990 | Monitoring, Regular | Trichloroethylene | — | Archived |
| January 1, 1987 – July 1, 1990 | Monitoring, Regular | Benzene | — | Archived |
| June 24, 1980 – July 23, 1980 | Monitoring, Check/Repeat/Confirmation | Fluoride | — | Archived |
Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the stateAddressed corrective action reported, pending final confirmation
Enforcement actions
- February 13, 2025State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- February 7, 2025State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- November 12, 2024State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- November 12, 2024State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- February 6, 2024State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- August 18, 2023State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- July 12, 2023State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- February 8, 2021State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- February 8, 2021State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- February 8, 2021State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- February 8, 2021State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- February 8, 2021State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- February 8, 2021State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- February 19, 2020State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- February 11, 2020State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- February 12, 2019State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- July 19, 2018State no longer subject to Rulegeneral compliance action — not tied to a specific violation on record
- April 5, 2018State Compliance achieved26 linked violations
- March 12, 2018State Compliance achieved74 linked violations
- February 8, 2018State Violation/Reminder Notice39 linked violations
- February 5, 2018State Violation/Reminder Notice10 linked violations
- January 26, 2018State Violation/Reminder Notice39 linked violations
- January 26, 2018State Violation/Reminder Notice51 linked violations
- January 26, 2018State Violation/Reminder Notice21 linked violations
- September 26, 2017State Compliance achieved3 linked violations
- May 3, 2017State Violation/Reminder Notice3 linked violations
- April 19, 2017State Violation/Reminder Notice2 linked violations
- April 17, 2017State Compliance achieved3 linked violations
- April 17, 2017State Compliance achieved3 linked violations
- February 28, 2017State Violation/Reminder Notice2 linked violations
- February 17, 2017State Violation/Reminder Notice7 linked violations
- November 3, 2016State Violation/Reminder Notice34 linked violations
- August 11, 2016State Violation/Reminder Notice29 linked violations
- June 20, 2016State Violation/Reminder Notice13 linked violations
- May 20, 2016State Violation/Reminder Notice12 linked violations
- May 20, 2016State Violation/Reminder Notice11 linked violations
- May 20, 2016State Violation/Reminder Notice7 linked violations
- May 20, 2016State Violation/Reminder Notice11 linked violations
- February 23, 2016State Violation/Reminder Notice8 linked violations
- August 26, 2015State Violation/Reminder Notice14 linked violations
- August 6, 2015State Violation/Reminder Notice19 linked violations
- March 13, 2015State Violation/Reminder Notice18 linked violations
- January 25, 2015State Compliance achieved30 linked violations
- February 10, 2012State Violation/Reminder Notice50 linked violations
- October 20, 2010State Compliance achieved336 linked violations
- June 22, 2009State Violation/Reminder Notice14 linked violations
- April 28, 2009State Compliance achieved33 linked violations
- May 16, 2008Federal Final Administrative Order issued45 linked violations
- December 6, 2006State Compliance achieved33 linked violations
- March 25, 1980State Othergeneral compliance action — not tied to a specific violation on record
- November 30, 1978State Othergeneral compliance action — not tied to a specific violation on record
Contact
ARTANA, RUBEN
520-287-6571
NOGALES, AZ 85621