Public Water Partners

AZ · Pima County

TUCSON CITY OF Water System

Consumer Confidence Report status

TUCSON 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 TUCSON 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)
AZ0410112
System type
Community Water System
Population served
732,906
Service connections
191,264
Ownership
local government
Water source
groundwater (wells)

TUCSON CITY OF is the second largest community water system in Arizona, serving 732,906 people from groundwater.

As of August 1, 2026, its federal record holds 360 entries between 1980 and 2026, all of which EPA lists as closed.

Of the 360, 358 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, volatile organic chemicals, and inorganic chemicals.

Violation history

  • Monitoring, Regular

    —

    Benzene

    January 1, 2026 – March 31, 2026

    Archived

  • Monitoring, Regular

    —

    Toluene

    January 1, 2026 – March 31, 2026

    Archived

  • Monitoring, Regular

    —

    Styrene

    January 1, 2026 – March 31, 2026

    Archived

  • Monitoring, Regular

    —

    1,2,4-Trichlorobenzene

    January 1, 2026 – March 31, 2026

    Archived

  • Monitoring, Regular

    —

    cis-1,2-Dichloroethylene

    January 1, 2026 – March 31, 2026

    Archived

  • Monitoring, Regular

    —

    Xylenes, Total

    January 1, 2026 – March 31, 2026

    Archived

  • Monitoring, Regular

    —

    Vinyl chloride

    January 1, 2026 – March 31, 2026

    Archived

  • Monitoring, Regular

    —

    1,2-Dichloroethane

    January 1, 2026 – March 31, 2026

    Archived

  • Monitoring, Regular

    —

    Tetrachloroethylene

    January 1, 2026 – March 31, 2026

    Archived

  • Monitoring, Regular

    —

    Radium-228

    January 1, 2026 – March 31, 2026

    Archived

  • Monitoring, Regular

    —

    CHLOROBENZENE

    January 1, 2026 – March 31, 2026

    Archived

  • Monitoring, Regular

    —

    Methoxychlor

    January 1, 2022 – December 31, 2024

    Resolved

  • Monitoring, Regular

    —

    Endrin

    January 1, 2022 – December 31, 2024

    Resolved

  • Monitoring, Regular

    —

    LASSO

    January 1, 2022 – December 31, 2024

    Resolved

  • Monitoring, Regular

    —

    Heptachlor

    January 1, 2022 – December 31, 2024

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 2022 – December 31, 2024

    Resolved

  • Monitoring, Regular

    —

    BHC-GAMMA

    January 1, 2022 – December 31, 2024

    Resolved

  • Monitoring and Reporting (DBP)

    —

    TTHM

    May 1, 2019 – July 31, 2019

    Resolved

  • Monitoring, Regular

    —

    OXAMYL

    January 1, 2019 – November 18, 2019

    Resolved

  • Monitoring, Regular

    —

    Dinoseb

    January 1, 2019 – November 18, 2019

    Resolved

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    January 1, 2019 – November 18, 2019

    Resolved

  • Monitoring, Regular

    —

    Carbofuran

    January 1, 2019 – November 18, 2019

    Resolved

  • Monitoring, Regular

    —

    Atrazine

    January 1, 2019 – November 18, 2019

    Resolved

  • Monitoring, Regular

    —

    LASSO

    January 1, 2019 – November 18, 2019

    Resolved

  • Monitoring, Regular

    —

    2,3,7,8-TCDD

    January 1, 2019 – November 18, 2019

    Resolved

  • Monitoring, Regular

    —

    Heptachlor

    January 1, 2019 – November 18, 2019

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 2019 – November 18, 2019

    Resolved

  • Monitoring, Regular

    —

    2,4-D

    January 1, 2019 – November 18, 2019

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 2019 – November 18, 2019

    Resolved

  • Monitoring, Regular

    —

    Benzo(a)pyrene

    January 1, 2019 – November 18, 2019

    Resolved

  • Monitoring, Regular

    —

    Pentachlorophenol

    January 1, 2019 – November 18, 2019

    Resolved

  • Monitoring, Regular

    —

    1,2-DIBROMO-3-CHLOROPROPANE

    January 1, 2019 – November 18, 2019

    Resolved

  • Monitoring, Regular

    —

    Chlordane

    January 1, 2019 – November 18, 2019

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) phthalate

    January 1, 2019 – June 19, 2019

    Resolved

  • Monitoring, Regular

    —

    Dinoseb

    January 1, 2019 – June 19, 2019

    Resolved

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    January 1, 2019 – June 19, 2019

    Resolved

  • Monitoring, Regular

    —

    Atrazine

    January 1, 2019 – June 19, 2019

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 2019 – June 19, 2019

    Resolved

  • Monitoring, Regular

    —

    2,4-D

    January 1, 2019 – June 19, 2019

    Resolved

  • Monitoring, Regular

    —

    Pentachlorophenol

    January 1, 2019 – June 19, 2019

    Resolved

  • Monitoring, Regular

    —

    1,2-DIBROMO-3-CHLOROPROPANE

    January 1, 2019 – June 19, 2019

    Resolved

  • Monitoring, Regular

    —

    ETHYLENE DIBROMIDE

    January 1, 2019 – June 19, 2019

    Resolved

  • Monitoring, Regular

    —

    Chlordane

    January 1, 2019 – June 19, 2019

    Resolved

  • Monitoring, Regular

    —

    Endrin

    January 1, 2019 – November 18, 2019

    Resolved

  • Monitoring, Regular

    —

    Toxaphene

    January 1, 2019 – November 18, 2019

    Resolved

  • Monitoring, Regular

    —

    Endothall

    January 1, 2019 – November 18, 2019

    Resolved

  • Monitoring, Regular

    —

    Glyphosate

    January 1, 2019 – November 18, 2019

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    January 1, 2019 – November 18, 2019

    Resolved

  • Monitoring, Regular

    —

    Simazine

    January 1, 2019 – November 18, 2019

    Resolved

  • Monitoring, Regular

    —

    Diquat

    January 1, 2019 – November 18, 2019

    Resolved

  • Monitoring, Regular

    —

    Combined Uranium

    January 1, 2019 – March 31, 2019

    Resolved

  • Monitoring, Regular

    —

    Arsenic

    January 1, 2019 – June 19, 2019

    Resolved

  • Monitoring, Regular

    —

    Chromium

    January 1, 2019 – June 19, 2019

    Resolved

  • Monitoring, Regular

    —

    Nickel

    January 1, 2019 – June 19, 2019

    Resolved

  • Monitoring, Regular

    —

    1,2,4-Trichlorobenzene

    January 1, 2019 – June 19, 2019

    Resolved

  • Monitoring, Regular

    —

    cis-1,2-Dichloroethylene

    January 1, 2019 – June 19, 2019

    Resolved

  • Monitoring, Regular

    —

    p-Dichlorobenzene

    January 1, 2019 – June 19, 2019

    Resolved

  • Monitoring, Regular

    —

    1,1,1-Trichloroethane

    January 1, 2019 – June 19, 2019

    Resolved

  • Monitoring, Regular

    —

    Carbon tetrachloride

    January 1, 2019 – June 19, 2019

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloropropane

    January 1, 2019 – June 19, 2019

    Resolved

  • Monitoring, Regular

    —

    Methoxychlor

    January 1, 2019 – June 19, 2019

    Resolved

  • Monitoring, Regular

    —

    Toxaphene

    January 1, 2019 – June 19, 2019

    Resolved

  • Monitoring, Regular

    —

    Diquat

    January 1, 2019 – June 19, 2019

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    January 1, 2019 – June 19, 2019

    Resolved

  • Monitoring, Regular

    —

    Combined Radium (-226 and -228)

    January 1, 2016 – September 19, 2016

    Resolved

  • Monitoring, Regular

    —

    Combined Uranium

    January 1, 2016 – September 19, 2016

    Resolved

  • Monitoring, Regular

    —

    Asbestos

    January 1, 2013 – June 21, 2017

    Resolved

  • Monitoring, Regular

    —

    Asbestos

    January 1, 2013 – May 18, 2018

    Resolved

  • Monitoring, Regular

    —

    Asbestos

    January 1, 2013 – November 18, 2019

    Resolved

  • Monitoring, Regular

    —

    Asbestos

    January 1, 2013 – September 19, 2016

    Resolved

  • Monitoring, Regular

    —

    Nitrate

    April 1, 2011 – June 30, 2011

    Resolved

  • Monitoring, Regular

    —

    Nitrate

    January 1, 2010 – December 31, 2010

    Resolved

  • Monitoring, Regular

    —

    Vinyl chloride

    January 1, 2007 – December 31, 2009

    Resolved

  • Monitoring, Regular

    —

    Ethylbenzene

    January 1, 2007 – December 31, 2009

    Resolved

  • Monitoring, Regular

    —

    1,2,4-Trichlorobenzene

    January 1, 2007 – December 31, 2009

    Resolved

  • Monitoring, Regular

    —

    o-Dichlorobenzene

    January 1, 2007 – December 31, 2009

    Resolved

  • Monitoring and Reporting (DBP)

    —

    TTHM

    January 1, 2006 – December 31, 2006

    Resolved

  • Consumer Confidence Report Complete Failure to Report

    —

    Consumer Confidence Rule

    July 1, 2005 – July 22, 2005

    Resolved

  • Follow-up Or Routine LCR Tap M/R

    —

    Lead and Copper Rule

    October 1, 2004 – July 28, 2008

    Resolved

  • Monitoring, Regular

    —

    Nitrate

    April 1, 2004 – June 30, 2004

    Resolved

  • Monitoring, Regular

    —

    Nickel

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Mercury

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    CYANIDE

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Cadmium

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Barium

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Arsenic

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Barium

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Mercury

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Selenium

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Nickel

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Chromium

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Cadmium

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    CYANIDE

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    1,2,4-Trichlorobenzene

    January 1, 2004 – February 4, 2004

    Resolved

  • Monitoring, Regular

    —

    cis-1,2-Dichloroethylene

    January 1, 2004 – February 4, 2004

    Resolved

  • Monitoring, Regular

    —

    Xylenes, Total

    January 1, 2004 – February 4, 2004

    Resolved

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    January 1, 2004 – February 4, 2004

    Resolved

  • Monitoring, Regular

    —

    p-Dichlorobenzene

    January 1, 2004 – February 4, 2004

    Resolved

  • Monitoring, Regular

    —

    1,1-Dichloroethylene

    January 1, 2004 – February 4, 2004

    Resolved

  • Monitoring, Regular

    —

    trans-1,2-Dichloroethylene

    January 1, 2004 – February 4, 2004

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloroethane

    January 1, 2004 – February 4, 2004

    Resolved

  • Monitoring, Regular

    —

    1,1,1-Trichloroethane

    January 1, 2004 – February 4, 2004

    Resolved

  • Monitoring, Regular

    —

    Carbon tetrachloride

    January 1, 2004 – February 4, 2004

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloropropane

    January 1, 2004 – February 4, 2004

    Resolved

  • Monitoring, Regular

    —

    1,1,2-Trichloroethane

    January 1, 2004 – February 4, 2004

    Resolved

  • Monitoring, Regular

    —

    Tetrachloroethylene

    January 1, 2004 – February 4, 2004

    Resolved

  • Monitoring, Regular

    —

    CHLOROBENZENE

    January 1, 2004 – February 4, 2004

    Resolved

  • Monitoring and Reporting (DBP)

    —

    Total Haloacetic Acids (HAA5)

    January 1, 2004 – March 31, 2004

    Resolved

  • Monitoring, Regular

    —

    1,2,4-Trichlorobenzene

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    cis-1,2-Dichloroethylene

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Xylenes, Total

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    1,1-Dichloroethylene

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    1,1,1-Trichloroethane

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Carbon tetrachloride

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Trichloroethylene

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    1,1,2-Trichloroethane

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Tetrachloroethylene

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    CHLOROBENZENE

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Toluene

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Ethylbenzene

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Selenium

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Selenium

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Thallium, Total

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Beryllium, Total

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Antimony, Total

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Xylenes, Total

    April 1, 2003 – June 30, 2003

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloropropane

    January 1, 2003 – December 31, 2003

    Resolved

  • Monitoring, Regular

    —

    1,1-Dichloroethylene

    January 1, 2003 – December 31, 2003

    Resolved

  • Monitoring, Regular

    —

    1,1,2-Trichloroethane

    January 1, 2003 – December 31, 2003

    Resolved

  • Monitoring, Regular

    —

    Trichloroethylene

    January 1, 2003 – December 31, 2003

    Resolved

  • Monitoring, Regular

    —

    cis-1,2-Dichloroethylene

    January 1, 2003 – December 31, 2003

    Resolved

  • Monitoring, Regular

    —

    Carbon tetrachloride

    January 1, 2003 – December 31, 2003

    Resolved

  • Monitoring, Regular

    —

    1,1,2-Trichloroethane

    January 1, 2003 – December 31, 2003

    Resolved

  • Monitoring, Regular

    —

    Xylenes, Total

    January 1, 2002 – March 31, 2002

    Resolved

  • Monitoring, Regular

    —

    Trichloroethylene

    January 1, 2002 – December 31, 2002

    Resolved

  • Monitoring, Regular

    —

    Styrene

    January 1, 2002 – December 31, 2002

    Resolved

  • Monitoring, Regular

    —

    Styrene

    January 1, 2002 – December 31, 2002

    Resolved

  • Monitoring, Regular

    —

    Trichloroethylene

    January 1, 2002 – December 31, 2002

    Resolved

  • Monitoring, Regular

    —

    1,2,4-Trichlorobenzene

    January 1, 2002 – December 31, 2002

    Resolved

  • Monitoring, Regular

    —

    1,1,2-Trichloroethane

    January 1, 2002 – December 31, 2002

    Resolved

  • Monitoring, Regular

    —

    Xylenes, Total

    January 1, 2002 – March 31, 2002

    Resolved

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    January 1, 2002 – December 31, 2002

    Resolved

  • Monitoring, Regular

    —

    Xylenes, Total

    October 1, 2001 – December 31, 2001

    Resolved

  • Monitoring, Regular

    —

    Xylenes, Total

    July 1, 2001 – September 30, 2001

    Resolved

  • Monitoring, Regular

    —

    Toluene

    April 1, 2001 – June 30, 2001

    Resolved

  • Monitoring, Regular

    —

    Carbofuran

    January 1, 2001 – December 31, 2001

    Resolved

  • Monitoring, Regular

    —

    LASSO

    January 1, 2001 – December 31, 2001

    Resolved

  • Monitoring, Regular

    —

    Dalapon

    January 1, 2001 – December 31, 2001

    Resolved

  • Monitoring, Regular

    —

    Picloram

    January 1, 2001 – December 31, 2001

    Resolved

  • Monitoring, Regular

    —

    Xylenes, Total

    October 1, 2000 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Ethylbenzene

    October 1, 2000 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Nitrate

    July 1, 2000 – September 30, 2000

    Archived

  • Monitoring, Regular

    —

    Xylenes, Total

    July 1, 2000 – September 30, 2000

    Resolved

  • Monitoring, Regular

    —

    Xylenes, Total

    April 1, 2000 – June 30, 2000

    Resolved

  • Monitoring, Regular

    —

    Toluene

    April 1, 2000 – June 30, 2000

    Resolved

  • Monitoring, Regular

    —

    Nitrate

    January 1, 2000 – March 31, 2000

    Resolved

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    January 1, 2000 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Toluene

    January 1, 2000 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Xylenes, Total

    January 1, 2000 – March 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Xylenes, Total

    October 1, 1999 – December 31, 1999

    Resolved

  • Monitoring, Regular

    —

    Ethylbenzene

    October 1, 1999 – December 31, 1999

    Resolved

  • Monitoring, Regular

    —

    Xylenes, Total

    October 1, 1999 – December 31, 1999

    Resolved

  • Monitoring, Regular

    —

    Toluene

    October 1, 1999 – December 31, 1999

    Resolved

  • Monitoring, Regular

    —

    Xylenes, Total

    October 1, 1999 – December 31, 1999

    Resolved

  • Monitoring, Regular

    —

    Xylenes, Total

    July 1, 1999 – September 30, 1999

    Resolved

  • Monitoring, Regular

    —

    Xylenes, Total

    April 1, 1999 – June 30, 1999

    Resolved

  • Monitoring, Regular

    —

    Xylenes, Total

    April 1, 1999 – June 30, 1999

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloropropane

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    cis-1,2-Dichloroethylene

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Styrene

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    1,2,4-Trichlorobenzene

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    trans-1,2-Dichloroethylene

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    o-Dichlorobenzene

    January 1, 1998 – January 13, 1998

    Resolved

  • Monitoring, Regular

    —

    Ethylbenzene

    January 1, 1998 – January 13, 1998

    Resolved

  • Monitoring, Regular

    —

    cis-1,2-Dichloroethylene

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    p-Dichlorobenzene

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    CHLOROBENZENE

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Tetrachloroethylene

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Ethylbenzene

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    1,2,4-Trichlorobenzene

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    o-Dichlorobenzene

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Toluene

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Tetrachloroethylene

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Endrin

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Total Polychlorinated Biphenyls (PCB)

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Endothall

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) phthalate

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Picloram

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Carbofuran

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    HEXACHLOROBENZENE

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    2,3,7,8-TCDD

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    2,4-D

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Chlordane

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Dalapon

    January 1, 1998 – October 12, 1999

    Resolved

  • Monitoring, Regular

    —

    LASSO

    January 1, 1998 – October 12, 1999

    Resolved

  • Monitoring, Regular

    —

    Endrin

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Endrin

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    BHC-GAMMA

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    BHC-GAMMA

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    BHC-GAMMA

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Methoxychlor

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Methoxychlor

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Toxaphene

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Dalapon

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Dalapon

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Dalapon

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Dalapon

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Dalapon

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Dalapon

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Dalapon

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Dalapon

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Diquat

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Glyphosate

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Glyphosate

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Glyphosate

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Glyphosate

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Glyphosate

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Glyphosate

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Glyphosate

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Glyphosate

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Glyphosate

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Glyphosate

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Glyphosate

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Glyphosate

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Glyphosate

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Glyphosate

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Glyphosate

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Glyphosate

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Glyphosate

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    OXAMYL

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    OXAMYL

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Simazine

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Simazine

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Simazine

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) phthalate

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) phthalate

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Picloram

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Picloram

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Picloram

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Picloram

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Picloram

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Picloram

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Picloram

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Dinoseb

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Dinoseb

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Dinoseb

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Dinoseb

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Carbofuran

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Carbofuran

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Carbofuran

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Carbofuran

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Carbofuran

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Atrazine

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Atrazine

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Atrazine

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Atrazine

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Atrazine

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Atrazine

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Atrazine

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Atrazine

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Atrazine

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    LASSO

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    LASSO

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    LASSO

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    LASSO

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    LASSO

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    LASSO

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    LASSO

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    LASSO

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    LASSO

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    LASSO

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    LASSO

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Heptachlor

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Heptachlor

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Heptachlor

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Heptachlor

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Heptachlor

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    2,4-D

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    2,4-D

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    2,4-D

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    2,4-D

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    2,4-D

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    2,4-D

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    2,4-D

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    2,4-D

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    2,4-D

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    2,4-D

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    2,4-D

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    2,4-D

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    2,4-D

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    2,4-D

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    2,4-D

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    2,4-D

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    HEXACHLOROBENZENE

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    HEXACHLOROBENZENE

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    HEXACHLOROBENZENE

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    HEXACHLOROBENZENE

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Chlordane

    January 1, 1998 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Endrin

    January 1, 1998 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Carbofuran

    January 1, 1998 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Diquat

    January 1, 1998 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Benzo(a)pyrene

    January 1, 1998 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Heptachlor

    January 1, 1998 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    LASSO

    January 1, 1998 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    1,2,4-Trichlorobenzene

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    o-Dichlorobenzene

    January 1, 1998 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Glyphosate

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Picloram

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Endothall

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    1,2,4-Trichlorobenzene

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Carbon tetrachloride

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Carbon tetrachloride

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Endothall

    January 1, 1998 – December 31, 2000

    Resolved

  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate

    November 19, 1980 – March 18, 1981

    Archived

  • Monitoring, Check/Repeat/Confirmation

    —

    Nitrate

    June 24, 1980 – July 23, 1980

    Archived

  • Monitoring, 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 state

Enforcement actions

Common questions

Is TUCSON CITY OF required to publish a Consumer Confidence Report?

Yes. TUCSON 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 TUCSON CITY OF’s next Consumer Confidence Report due?

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

Does TUCSON CITY OF have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for TUCSON 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

Not on record

Phone not on record