Is SAN LUIS CITY OF required to publish a Consumer Confidence Report?

Yes. SAN LUIS CITY OF is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is SAN LUIS CITY OF’s next Consumer Confidence Report due?

SAN LUIS CITY OF’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

What is a Consumer Confidence Report?

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

SAN LUIS, AZ · Yuma County

SAN LUIS CITY OF Water System

Consumer Confidence Report status

SAN LUIS CITY OF must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for SAN LUIS CITY OF.

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

System facts

System ID (PWSID): AZ0414005
System type: Community Water System
Population served: 39,705
Service connections: 6,100
Ownership: local government
Water source: groundwater (wells)

SAN LUIS CITY OF is one of 67 community water systems in Arizona in the 10,001 to 100,000 people size category, serving 39,705 people from groundwater.

As of August 1, 2026, its federal record holds 117 entries between 1980 and 2024, all of which EPA lists as closed.

Of the 117, 105 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves synthetic organic chemicals, inorganic chemicals, and the Radionuclides and Revised Rad Rule.

Violation history

Failure To Address Deficiency
Health-based
Groundwater Rule
June 6, 2024 – December 30, 2024
Resolved
Failure To Address Deficiency
Health-based
Groundwater Rule
August 5, 2021 – November 12, 2021
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2019 – September 12, 2019
Resolved
Report Sample Result/Fail Monitor (RTCR)
—
Revised Total Coliform Rule
September 1, 2017 – September 11, 2017
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
February 12, 2015 – November 8, 2017
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
January 15, 2015 – March 17, 2015
Resolved
Monitoring, Regular
—
Thallium, Total
January 1, 2012 – December 31, 2014
Resolved
Monitoring, Regular
—
Thallium, Total
January 1, 2012 – December 31, 2014
Resolved
Monitoring, Regular
—
Thallium, Total
January 1, 2012 – December 31, 2014
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 1, 2011 – May 23, 2012
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2011 – April 24, 2012
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2011 – September 30, 2011
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2010 – February 17, 2011
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2010 – September 29, 2010
Resolved
Monitoring and Reporting (DBP)
—
TTHM
April 1, 2010 – June 30, 2010
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2010 – March 31, 2010
Resolved
Monitoring and Reporting (DBP)
—
TTHM
October 1, 2009 – December 31, 2009
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2009 – November 10, 2009
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2009 – March 31, 2009
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2008 – November 4, 2008
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2007 – November 4, 2008
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
May 1, 2007 – May 31, 2007
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
November 1, 2006 – November 30, 2006
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2006 – January 4, 2007
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
Endrin
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
Toxaphene
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
BHC-GAMMA
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
Dalapon
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
Diquat
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
OXAMYL
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
Picloram
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
Dinoseb
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
Hexachlorocyclopentadiene
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
Carbofuran
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
Atrazine
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
2,3,7,8-TCDD
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
Heptachlor
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
Heptachlor epoxide
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
2,4-D
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
2,4,5-TP
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
Endothall
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
Diquat
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
Hexachlorocyclopentadiene
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
BHC-GAMMA
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
Methoxychlor
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
Toxaphene
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
Dalapon
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
Diquat
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
Endothall
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
Glyphosate
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
OXAMYL
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
Simazine
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
Picloram
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
Dinoseb
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
Atrazine
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
2,3,7,8-TCDD
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
Heptachlor epoxide
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
Chlordane
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
Dalapon
January 1, 2006 – December 31, 2008
Resolved
Monitoring, Regular
—
2,3,7,8-TCDD
January 1, 2006 – December 31, 2008
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2004 – July 28, 2008
Resolved
Monitoring, Regular
—
Radium-228
January 1, 2004 – December 31, 2007
Resolved
Monitoring, Regular
—
Combined Uranium
January 1, 2004 – December 31, 2007
Resolved
Monitoring, Regular
—
Radium-228
January 1, 2004 – December 31, 2007
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
January 1, 2004 – December 31, 2007
Resolved
Monitoring, Regular
—
Combined Uranium
January 1, 2004 – December 31, 2007
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
January 1, 2004 – December 31, 2007
Resolved
Monitoring, Regular
—
Radium-228
January 1, 2004 – December 31, 2007
Resolved
Monitoring, Regular
—
Combined Uranium
January 1, 2004 – December 31, 2007
Resolved
Monitoring, Regular
—
Radium-228
January 1, 2004 – December 31, 2007
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
January 1, 2004 – December 31, 2007
Resolved
Monitoring, Regular
—
Combined Uranium
January 1, 2004 – December 31, 2007
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
January 1, 2004 – December 31, 2007
Resolved
Monitoring, Regular
—
Radium-226
January 1, 2004 – December 31, 2007
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2003 – July 28, 2008
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2003 – April 27, 2004
Resolved
Monitoring, Regular
—
Barium
January 1, 2003 – December 31, 2005
Resolved
Monitoring, Regular
—
Chromium
January 1, 2003 – December 31, 2005
Resolved
Monitoring, Regular
—
Cadmium
January 1, 2003 – December 31, 2005
Resolved
Monitoring, Regular
—
Cadmium
January 1, 2003 – December 31, 2005
Resolved
Monitoring, Regular
—
Cadmium
January 1, 2003 – December 31, 2005
Resolved
Monitoring, Regular
—
Antimony, Total
January 1, 2003 – December 31, 2005
Resolved
Monitoring, Regular
—
Mercury
January 1, 2003 – December 31, 2005
Resolved
Monitoring, Regular
—
Chromium
January 1, 2003 – December 31, 2005
Resolved
Monitoring, Regular
—
Barium
January 1, 2003 – December 31, 2005
Resolved
Monitoring, Regular
—
Nickel
January 1, 2003 – December 31, 2005
Resolved
Monitoring, Regular
—
Arsenic
January 1, 2003 – December 31, 2005
Resolved
Monitoring, Regular
—
Arsenic
January 1, 2003 – December 31, 2005
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
Chlordane
January 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
Selenium
January 1, 2003 – December 31, 2005
Resolved
Monitoring, Regular
—
Mercury
January 1, 2003 – December 31, 2005
Resolved
Monitoring, Regular
—
Antimony, Total
January 1, 2003 – December 31, 2005
Resolved
Monitoring, Check/Repeat/Confirmation
—
Thallium, Total
June 24, 1999 – July 8, 1999
Archived
Monitoring, Check/Repeat/Confirmation
—
Xylenes, Total
February 4, 1999 – February 18, 1999
Archived
Monitoring, Check/Repeat/Confirmation
—
1,2-Dichloroethane
February 4, 1999 – February 18, 1999
Archived
Monitoring, Check/Repeat/Confirmation
—
p-Dichlorobenzene
February 4, 1999 – February 18, 1999
Archived
Monitoring, Check/Repeat/Confirmation
—
o-Dichlorobenzene
February 4, 1999 – February 18, 1999
Archived
Monitoring, Check/Repeat/Confirmation
—
Thallium, Total
January 12, 1999 – January 26, 1999
Archived
Monitoring, Regular
—
Endrin
January 1, 1997 – December 31, 1999
Resolved
Monitoring, Regular
—
Dinoseb
January 1, 1997 – December 31, 1999
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 1997 – December 31, 1999
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
October 1, 1988 – December 31, 1988
Archived
Monitoring, Regular
—
Mercury
April 30, 1988 – April 29, 1991
Archived
Monitoring, Regular
—
Cadmium
April 30, 1988 – April 29, 1991
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
June 1, 1980 – August 31, 1980
Archived

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

Period	Violation	Contaminant / rule	Health-based	Status
June 6, 2024 – December 30, 2024	Failure To Address Deficiency	Groundwater Rule	Health-based	Resolved
August 5, 2021 – November 12, 2021	Failure To Address Deficiency	Groundwater Rule	Health-based	Resolved
July 1, 2019 – September 12, 2019	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
September 1, 2017 – September 11, 2017	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	—	Resolved
February 12, 2015 – November 8, 2017	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
January 15, 2015 – March 17, 2015	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
January 1, 2012 – December 31, 2014	Monitoring, Regular	Thallium, Total	—	Resolved
January 1, 2012 – December 31, 2014	Monitoring, Regular	Thallium, Total	—	Resolved
January 1, 2012 – December 31, 2014	Monitoring, Regular	Thallium, Total	—	Resolved
October 1, 2011 – May 23, 2012	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2011 – April 24, 2012	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
October 1, 2010 – February 17, 2011	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
July 1, 2010 – September 29, 2010	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
April 1, 2010 – June 30, 2010	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2010 – March 31, 2010	Monitoring and Reporting (DBP)	TTHM	—	Resolved
October 1, 2009 – December 31, 2009	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 2009 – November 10, 2009	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2008 – November 4, 2008	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2007 – November 4, 2008	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
May 1, 2007 – May 31, 2007	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
November 1, 2006 – November 30, 2006	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 2006 – January 4, 2007	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	Endrin	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	Toxaphene	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	BHC-GAMMA	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	Dalapon	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	Diquat	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	OXAMYL	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	Picloram	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	Dinoseb	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	Hexachlorocyclopentadiene	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	Carbofuran	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	Atrazine	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	2,3,7,8-TCDD	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	Heptachlor	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	Heptachlor epoxide	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	2,4-D	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	2,4,5-TP	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	Endothall	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	Diquat	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	Hexachlorocyclopentadiene	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	BHC-GAMMA	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	Methoxychlor	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	Toxaphene	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	Dalapon	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	Diquat	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	Endothall	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	Glyphosate	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	OXAMYL	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	Simazine	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	Picloram	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	Dinoseb	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	Atrazine	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	2,3,7,8-TCDD	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	Heptachlor epoxide	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	Chlordane	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	Dalapon	—	Resolved
January 1, 2006 – December 31, 2008	Monitoring, Regular	2,3,7,8-TCDD	—	Resolved
October 1, 2004 – July 28, 2008	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
January 1, 2004 – December 31, 2007	Monitoring, Regular	Radium-228	—	Resolved
January 1, 2004 – December 31, 2007	Monitoring, Regular	Combined Uranium	—	Resolved
January 1, 2004 – December 31, 2007	Monitoring, Regular	Radium-228	—	Resolved
January 1, 2004 – December 31, 2007	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
January 1, 2004 – December 31, 2007	Monitoring, Regular	Combined Uranium	—	Resolved
January 1, 2004 – December 31, 2007	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
January 1, 2004 – December 31, 2007	Monitoring, Regular	Radium-228	—	Resolved
January 1, 2004 – December 31, 2007	Monitoring, Regular	Combined Uranium	—	Resolved
January 1, 2004 – December 31, 2007	Monitoring, Regular	Radium-228	—	Resolved
January 1, 2004 – December 31, 2007	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
January 1, 2004 – December 31, 2007	Monitoring, Regular	Combined Uranium	—	Resolved
January 1, 2004 – December 31, 2007	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
January 1, 2004 – December 31, 2007	Monitoring, Regular	Radium-226	—	Resolved
October 1, 2003 – July 28, 2008	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
July 1, 2003 – April 27, 2004	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2003 – December 31, 2005	Monitoring, Regular	Barium	—	Resolved
January 1, 2003 – December 31, 2005	Monitoring, Regular	Chromium	—	Resolved
January 1, 2003 – December 31, 2005	Monitoring, Regular	Cadmium	—	Resolved
January 1, 2003 – December 31, 2005	Monitoring, Regular	Cadmium	—	Resolved
January 1, 2003 – December 31, 2005	Monitoring, Regular	Cadmium	—	Resolved
January 1, 2003 – December 31, 2005	Monitoring, Regular	Antimony, Total	—	Resolved
January 1, 2003 – December 31, 2005	Monitoring, Regular	Mercury	—	Resolved
January 1, 2003 – December 31, 2005	Monitoring, Regular	Chromium	—	Resolved
January 1, 2003 – December 31, 2005	Monitoring, Regular	Barium	—	Resolved
January 1, 2003 – December 31, 2005	Monitoring, Regular	Nickel	—	Resolved
January 1, 2003 – December 31, 2005	Monitoring, Regular	Arsenic	—	Resolved
January 1, 2003 – December 31, 2005	Monitoring, Regular	Arsenic	—	Resolved
January 1, 2003 – December 31, 2003	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
January 1, 2003 – December 31, 2003	Monitoring, Regular	Chlordane	—	Resolved
January 1, 2003 – December 31, 2005	Monitoring, Regular	Selenium	—	Resolved
January 1, 2003 – December 31, 2005	Monitoring, Regular	Mercury	—	Resolved
January 1, 2003 – December 31, 2005	Monitoring, Regular	Antimony, Total	—	Resolved
June 24, 1999 – July 8, 1999	Monitoring, Check/Repeat/Confirmation	Thallium, Total	—	Archived
February 4, 1999 – February 18, 1999	Monitoring, Check/Repeat/Confirmation	Xylenes, Total	—	Archived
February 4, 1999 – February 18, 1999	Monitoring, Check/Repeat/Confirmation	1,2-Dichloroethane	—	Archived
February 4, 1999 – February 18, 1999	Monitoring, Check/Repeat/Confirmation	p-Dichlorobenzene	—	Archived
February 4, 1999 – February 18, 1999	Monitoring, Check/Repeat/Confirmation	o-Dichlorobenzene	—	Archived
January 12, 1999 – January 26, 1999	Monitoring, Check/Repeat/Confirmation	Thallium, Total	—	Archived
January 1, 1997 – December 31, 1999	Monitoring, Regular	Endrin	—	Resolved
January 1, 1997 – December 31, 1999	Monitoring, Regular	Dinoseb	—	Resolved
January 1, 1997 – December 31, 1999	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
October 1, 1988 – December 31, 1988	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
April 30, 1988 – April 29, 1991	Monitoring, Regular	Mercury	—	Archived
April 30, 1988 – April 29, 1991	Monitoring, Regular	Cadmium	—	Archived
June 1, 1980 – August 31, 1980	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived

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

Enforcement actions

January 3, 2025State Public Notification received1 linked violation
December 30, 2024State Violation/Reminder Notice1 linked violation
December 30, 2024State Compliance achieved1 linked violation
December 30, 2024State Public Notification requested1 linked violation
December 14, 2024State Violation/Reminder Notice3 linked violations
November 1, 2024State Compliance achieved4 linked violations
October 23, 2024State Violation/Reminder Notice2 linked violations
March 19, 2024State Violation/Reminder Notice3 linked violations
July 5, 2022State Compliance achieved3 linked violations
January 31, 2022State Violation/Reminder Notice56 linked violations
December 8, 2021State Violation/Reminder Notice4 linked violations
October 27, 2021State Violation/Reminder Notice1 linked violation
October 27, 2021State Public Notification requested1 linked violation
September 12, 2019State Compliance achieved2 linked violations
August 1, 2019State Public Notification requested1 linked violation
August 1, 2019State Violation/Reminder Notice1 linked violation
July 9, 2019State Violation/Reminder Notice1 linked violation
July 8, 2019State Compliance achieved1 linked violation
November 8, 2017State Compliance achieved1 linked violation
September 11, 2017State Compliance achieved1 linked violation
July 29, 2015State Compliance achieved3 linked violations
July 29, 2015State Compliance achieved3 linked violations
July 29, 2015State Compliance achieved3 linked violations
April 23, 2015State Violation/Reminder Notice4 linked violations
November 5, 2012State Compliance achieved6 linked violations
June 23, 2011State Compliance achieved6 linked violations
June 23, 2011State Compliance achieved7 linked violations
June 23, 2011State Compliance achieved6 linked violations
February 17, 2011State Compliance achieved3 linked violations
November 10, 2009State Compliance achieved2 linked violations
October 23, 2009State Compliance achieved2 linked violations
July 13, 2009State Compliance achieved23 linked violations
June 22, 2009State Violation/Reminder Notice2 linked violations
June 22, 2009State Violation/Reminder Notice2 linked violations
June 22, 2009State Violation/Reminder Notice2 linked violations
June 22, 2009State Violation/Reminder Notice2 linked violations
June 22, 2009State Violation/Reminder Notice2 linked violations
June 22, 2009State Violation/Reminder Notice2 linked violations
June 22, 2009State Violation/Reminder Notice2 linked violations
June 22, 2009State Violation/Reminder Notice2 linked violations
June 22, 2009State Violation/Reminder Notice2 linked violations
June 22, 2009State Violation/Reminder Notice2 linked violations
June 22, 2009State Violation/Reminder Notice2 linked violations
May 21, 2009State Compliance achieved4 linked violations
April 23, 2009State Violation/Reminder Notice4 linked violations
February 17, 2009State Compliance achieved73 linked violations
June 12, 2008State Compliance achieved49 linked violations
May 6, 2008State Compliance achieved17 linked violations
May 6, 2008State Compliance achieved89 linked violations
April 7, 2004State Compliance achieved119 linked violations
November 27, 2001State Compliance achieved179 linked violations
November 27, 2001State Compliance achieved86 linked violations
November 27, 2001State Compliance achieved22 linked violations
November 27, 2001State Compliance achieved106 linked violations

Common questions

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

Contact

SAN LUIS CITY OF

928-341-8577

SAN LUIS, AZ 85349