Second Mesa, 09

Second Mesa Day School - BIA 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 EPA Region 9’s official records. Always confirm current status with EPA Region 9 before making decisions based on this information.

System facts

System ID (PWSID): 090400057
System type: Community Water System
Population served: 255
Service connections: 16
Ownership: federal government
Water source: groundwater (wells)

Violation history

Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2025 – December 31, 2025
Archived
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2025 – September 30, 2025
Archived
Public Notification Violation for NPDWR Violation
—
Public Notice
January 1, 2025 – August 8, 2025
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
January 1, 2025 – March 31, 2025
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
October 1, 2024 – December 31, 2024
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
July 1, 2024 – May 1, 2025
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
July 1, 2024 – September 30, 2024
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2024 – June 23, 2025
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
June 1, 2024 – June 30, 2024
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
June 1, 2024 – July 1, 2025
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2024 – June 30, 2024
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
April 1, 2024 – May 1, 2025
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
April 1, 2024 – June 30, 2024
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2024 – December 31, 2024
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2022
Unaddressed
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2021 – September 29, 2021
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2021 – June 30, 2021
Resolved
Monitoring, Regular
—
Arsenic
January 1, 2020 – March 31, 2020
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
October 1, 2019 – December 31, 2019
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
July 1, 2019 – September 30, 2019
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
April 1, 2019 – June 30, 2019
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
January 1, 2019 – March 31, 2019
Resolved
Monitoring, Regular
—
Arsenic
July 1, 2018 – September 30, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
April 1, 2017 – June 30, 2017
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
January 1, 2017 – March 31, 2017
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
October 1, 2016 – December 31, 2016
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
August 1, 2016 – August 31, 2016
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
June 1, 2016 – June 30, 2016
Resolved
Monitoring, Regular
—
Arsenic
April 1, 2016 – June 30, 2016
Resolved
Monitoring, Routine (IDSE)
—
Total Haloacetic Acids (HAA5)
January 1, 2015 – December 31, 2015
Resolved
Monitoring, Routine (IDSE)
—
TTHM
January 1, 2015 – December 31, 2015
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
October 1, 2014 – October 31, 2014
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2014 – December 31, 2014
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2014 – December 31, 2014
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
July 1, 2013 – March 30, 2017
Resolved
Monitoring, Regular
—
Arsenic
July 1, 2013 – September 30, 2013
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
July 1, 2013 – September 30, 2013
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
April 1, 2013 – January 5, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
April 1, 2013 – June 30, 2013
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
January 1, 2013 – March 31, 2013
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
October 1, 2012 – December 31, 2012
Resolved
Monitoring, Regular
—
Thallium, Total
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Cadmium
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Chromium
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
CYANIDE
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Fluoride
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Mercury
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Selenium
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Antimony, Total
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Beryllium, Total
January 1, 2011 – December 31, 2013
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
—
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, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 2011 – December 31, 2013
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
—
2,3,7,8-TCDD
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
—
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
—
Barium
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
January 1, 2010 – January 31, 2010
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
December 1, 2009 – February 22, 2011
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
November 1, 2009 – November 30, 2009
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
September 1, 2009 – September 30, 2009
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
November 1, 2008 – November 30, 2008
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
November 1, 2008 – November 30, 2008
Resolved
Monitoring, Repeat Minor (TCR)
—
Coliform (TCR)
October 1, 2008 – October 31, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
July 1, 2008 – September 30, 2008
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 2008 – May 31, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
April 1, 2008 – June 30, 2008
Resolved
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
ETHYLENE DIBROMIDE
January 1, 2008 – March 31, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Chlordane
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Benzene
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Toluene
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Styrene
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Combined Uranium
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Gross Beta Particle Activity
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Picloram
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Endrin
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
2,4,5-TP
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Arsenic
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Pentachlorophenol
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Total Polychlorinated Biphenyls (PCB)
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
BHC-GAMMA
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Heptachlor epoxide
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
2,4-D
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Simazine
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
OXAMYL
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Glyphosate
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Dinoseb
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Endothall
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Hexachlorocyclopentadiene
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Diquat
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Carbofuran
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Dalapon
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Atrazine
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
LASSO
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Toxaphene
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
2,3,7,8-TCDD
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Methoxychlor
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Heptachlor
January 1, 2008 – March 31, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
October 1, 2007 – December 31, 2007
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 2007 – July 31, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
April 1, 2007 – June 30, 2007
Resolved

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yet

Period	Violation	Contaminant / rule	Health-based	Status
October 1, 2025 – December 31, 2025	Monitoring and Reporting (DBP)	Chlorine	—	Archived
July 1, 2025 – September 30, 2025	Monitoring and Reporting (DBP)	Chlorine	—	Archived
January 1, 2025 – August 8, 2025	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
January 1, 2025 – March 31, 2025	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
October 1, 2024 – December 31, 2024	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
July 1, 2024 – May 1, 2025	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2024 – September 30, 2024	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
July 1, 2024 – June 23, 2025	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
June 1, 2024 – June 30, 2024	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
June 1, 2024 – July 1, 2025	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
April 1, 2024 – June 30, 2024	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
April 1, 2024 – May 1, 2025	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
April 1, 2024 – June 30, 2024	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Nitrate	—	Resolved
July 1, 2022	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Unaddressed
July 1, 2021 – September 29, 2021	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
April 1, 2021 – June 30, 2021	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2020 – March 31, 2020	Monitoring, Regular	Arsenic	—	Resolved
October 1, 2019 – December 31, 2019	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
July 1, 2019 – September 30, 2019	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
April 1, 2019 – June 30, 2019	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
January 1, 2019 – March 31, 2019	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
July 1, 2018 – September 30, 2018	Monitoring, Regular	Arsenic	—	Resolved
April 1, 2017 – June 30, 2017	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
January 1, 2017 – March 31, 2017	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
October 1, 2016 – December 31, 2016	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
August 1, 2016 – August 31, 2016	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
June 1, 2016 – June 30, 2016	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring, Regular	Arsenic	—	Resolved
January 1, 2015 – December 31, 2015	Monitoring, Routine (IDSE)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2015 – December 31, 2015	Monitoring, Routine (IDSE)	TTHM	—	Resolved
October 1, 2014 – October 31, 2014	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 2013 – March 30, 2017	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2013 – September 30, 2013	Monitoring, Regular	Arsenic	—	Resolved
July 1, 2013 – September 30, 2013	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
April 1, 2013 – January 5, 2016	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
April 1, 2013 – June 30, 2013	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
January 1, 2013 – March 31, 2013	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
October 1, 2012 – December 31, 2012	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Thallium, Total	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Cadmium	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Chromium	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	CYANIDE	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Fluoride	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Mercury	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Selenium	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Antimony, Total	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Beryllium, Total	—	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	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 – December 31, 2013	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	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	2,3,7,8-TCDD	—	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	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	Barium	—	Resolved
January 1, 2010 – January 31, 2010	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
December 1, 2009 – February 22, 2011	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
November 1, 2009 – November 30, 2009	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
September 1, 2009 – September 30, 2009	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
November 1, 2008 – November 30, 2008	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
November 1, 2008 – November 30, 2008	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
October 1, 2008 – October 31, 2008	Monitoring, Repeat Minor (TCR)	Coliform (TCR)	—	Resolved
July 1, 2008 – September 30, 2008	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
May 1, 2008 – May 31, 2008	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 2008 – June 30, 2008	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Resolved
January 1, 2008 – March 31, 2008	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Chlordane	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Benzene	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Toluene	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Styrene	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Combined Uranium	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Gross Beta Particle Activity	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Picloram	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Endrin	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	2,4,5-TP	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Arsenic	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Pentachlorophenol	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	BHC-GAMMA	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Heptachlor epoxide	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	2,4-D	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Simazine	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	OXAMYL	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Glyphosate	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Dinoseb	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Endothall	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Hexachlorocyclopentadiene	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Diquat	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Carbofuran	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Dalapon	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Atrazine	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	LASSO	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Toxaphene	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	2,3,7,8-TCDD	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Methoxychlor	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Heptachlor	—	Resolved
October 1, 2007 – December 31, 2007	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
July 1, 2007 – July 31, 2007	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 2007 – June 30, 2007	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yet

Enforcement actions

December 2, 2025Federal Violation/Reminder Notice1 linked violation
September 16, 2025Federal Violation/Reminder Notice1 linked violation
September 16, 2025Federal Violation/Reminder Notice1 linked violation
August 8, 2025Federal Compliance achieved1 linked violation
July 1, 2025Federal Compliance achieved1 linked violation
June 23, 2025Federal Compliance achieved1 linked violation
June 11, 2025Federal Violation/Reminder Notice1 linked violation
June 11, 2025Federal Violation/Reminder Notice1 linked violation
June 4, 2025Federal Compliance achieved1 linked violation
May 13, 2025Federal Public Notification issued1 linked violation
May 1, 2025Federal Compliance achieved2 linked violations
April 4, 2025Federal Compliance achieved2 linked violations
April 4, 2025Federal Compliance achieved2 linked violations
April 3, 2025Federal Violation/Reminder Notice1 linked violation
April 1, 2025Federal Violation/Reminder Notice1 linked violation
July 3, 2024Federal Compliance achieved2 linked violations
September 29, 2021Federal Compliance achieved1 linked violation
September 29, 2021Federal Compliance achieved1 linked violation
June 11, 2020Federal Compliance achieved1 linked violation
June 11, 2020Federal Compliance achieved1 linked violation
June 11, 2020Federal Compliance achieved1 linked violation
June 11, 2020Federal Compliance achieved1 linked violation
April 7, 2020Federal Compliance achieved1 linked violation
October 4, 2019Federal Compliance achieved1 linked violation
September 7, 2017Federal Compliance achieved1 linked violation
September 7, 2017Federal Compliance achieved1 linked violation
September 7, 2017Federal Compliance achieved1 linked violation
March 30, 2017Federal Compliance achieved1 linked violation
November 14, 2016Federal Compliance achieved1 linked violation
November 14, 2016Federal Compliance achieved1 linked violation
November 14, 2016Federal Compliance achieved1 linked violation
November 14, 2016Federal Compliance achieved1 linked violation
November 14, 2016Federal Compliance achieved1 linked violation
October 1, 2016Federal Compliance achieved1 linked violation
October 1, 2016Federal Compliance achieved1 linked violation
October 1, 2016Federal Compliance achieved1 linked violation
October 1, 2016Federal Compliance achieved1 linked violation
October 1, 2016Federal Compliance achieved1 linked violation
October 1, 2016Federal Compliance achieved1 linked violation
October 1, 2016Federal Compliance achieved1 linked violation
October 1, 2016Federal Compliance achieved1 linked violation
October 1, 2016Federal Compliance achieved1 linked violation
October 1, 2016Federal Compliance achieved1 linked violation
May 20, 2016Federal Compliance achieved1 linked violation
January 13, 2016Federal Compliance achieved1 linked violation
January 13, 2016Federal Compliance achieved1 linked violation
January 13, 2016Federal Compliance achieved1 linked violation
January 13, 2016Federal Compliance achieved1 linked violation
January 13, 2016Federal Compliance achieved1 linked violation
January 13, 2016Federal Compliance achieved1 linked violation
January 13, 2016Federal Compliance achieved1 linked violation
January 13, 2016Federal Compliance achieved1 linked violation
January 13, 2016Federal Compliance achieved1 linked violation
January 13, 2016Federal Compliance achieved1 linked violation
January 13, 2016Federal Compliance achieved1 linked violation
January 13, 2016Federal Compliance achieved1 linked violation
January 13, 2016Federal Compliance achieved1 linked violation
January 13, 2016Federal Compliance achieved1 linked violation
January 13, 2016Federal Compliance achieved1 linked violation
January 13, 2016Federal Compliance achieved1 linked violation
January 13, 2016Federal Compliance achieved1 linked violation
January 13, 2016Federal Compliance achieved1 linked violation
January 13, 2016Federal Compliance achieved1 linked violation
January 13, 2016Federal Compliance achieved1 linked violation
January 13, 2016Federal Compliance achieved1 linked violation
January 13, 2016Federal Compliance achieved1 linked violation
January 13, 2016Federal Compliance achieved1 linked violation
January 13, 2016Federal Compliance achieved1 linked violation
January 13, 2016Federal Compliance achieved1 linked violation
January 13, 2016Federal Compliance achieved1 linked violation
January 5, 2016Federal Compliance achieved1 linked violation
November 10, 2015Federal Compliance achieved1 linked violation
April 15, 2015Federal Compliance achieved1 linked violation
February 17, 2015Federal Compliance achieved1 linked violation
December 22, 2014Federal Compliance achieved1 linked violation
December 22, 2014Federal Compliance achieved1 linked violation
December 22, 2014Federal Compliance achieved1 linked violation
December 22, 2014Federal Compliance achieved1 linked violation
January 22, 2014Federal Compliance achieved1 linked violation
November 18, 2013Federal Final Administrative Order issued1 linked violation
November 18, 2013Federal Final Administrative Order issued1 linked violation
July 9, 2013Federal Final Administrative Order issued1 linked violation
April 3, 2013Federal Final Administrative Order issued1 linked violation
March 23, 2011Federal Final Administrative Order issued6 linked violations
March 22, 2011Federal Final Administrative Order issuedgeneral compliance action — not tied to a specific violation on record
February 22, 2011Federal Compliance achieved1 linked violation
September 15, 2010Federal Compliance achieved1 linked violation
September 15, 2010Federal Compliance achieved1 linked violation
March 11, 2010Federal Compliance achieved1 linked violation
March 11, 2010Federal Compliance achieved1 linked violation
March 11, 2010Federal Compliance achieved1 linked violation
March 11, 2010Federal Compliance achieved1 linked violation
March 11, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
January 26, 2010Federal Compliance achieved1 linked violation
August 11, 2009Federal Compliance achieved1 linked violation
August 11, 2009Federal Compliance achieved1 linked violation
March 18, 2009Federal Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
February 25, 2009Federal Compliance achieved1 linked violation
February 25, 2009Federal Compliance achieved1 linked violation
February 25, 2009Federal Compliance achieved1 linked violation
February 25, 2009Federal Compliance achieved1 linked violation
February 25, 2009Federal Compliance achieved1 linked violation
February 25, 2009Federal Compliance achieved1 linked violation
August 20, 2008Federal Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
July 1, 2008Federal Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
June 12, 2008Federal Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
February 28, 2008Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
January 23, 2008Federal Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
November 13, 2007Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
November 11, 2007Federal Compliance achieved1 linked violation
September 12, 2007Federal Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
August 20, 2007Federal Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
July 12, 2007Federal Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
June 28, 2007Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record

Contact

Second Mesa Day School

Phone not on record

Second Mesa, AZ 86043