TUCSON, AZ · Pima County

FLOWING WELLS IRRIGATION DISTRICT Water System

Current status

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

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

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Arizona’s official records. Always confirm current status with Arizona before making decisions based on this information.

System facts

System ID (PWSID): AZ0410051
System type: Community Water System
Population served: 16,000
Service connections: 3,662
Ownership: privately owned
Water source: groundwater (wells)

Violation history

Monitoring, Regular
—
Benzene
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
Tetrachloroethylene
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
Trichloroethylene
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
Carbon tetrachloride
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
Vinyl chloride
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
Xylenes, Total
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
CHLOROBENZENE
July 1, 2025 – September 30, 2025
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
December 20, 2024 – May 15, 2025
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2024 – March 31, 2024
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2020 – September 30, 2020
Resolved
Monitoring and Reporting (DBP)
—
TTHM
November 1, 2019 – January 31, 2020
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
Toluene
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
Benzene
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
July 1, 2013 – September 30, 2013
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
July 1, 2013 – September 30, 2013
Resolved
Monitoring, Regular
—
CHLOROBENZENE
July 1, 2013 – September 30, 2013
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2009 – September 16, 2010
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
Atrazine
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
2,4,5-TP
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Carbofuran
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Endrin
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
2,3,7,8-TCDD
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
2,4,5-TP
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
LASSO
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Endrin
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Simazine
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Atrazine
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Hexachlorocyclopentadiene
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Pentachlorophenol
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
2,4,5-TP
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Methoxychlor
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Dalapon
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Chlordane
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Heptachlor epoxide
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Toxaphene
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
CYANIDE
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Simazine
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Toxaphene
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
2,3,7,8-TCDD
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
BHC-GAMMA
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
2,4-D
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Atrazine
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Picloram
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Pentachlorophenol
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
2,4,5-TP
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Endothall
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Diquat
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Heptachlor
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
LASSO
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
ETHYLENE DIBROMIDE
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Simazine
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
BHC-GAMMA
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
2,4-D
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Glyphosate
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Pentachlorophenol
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Diquat
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
LASSO
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Endrin
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Simazine
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
LASSO
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Pentachlorophenol
January 1, 2001 – March 26, 2001
Resolved
Monitoring, Regular
—
Pentachlorophenol
January 1, 2001 – March 26, 2001
Resolved
Monitoring, Regular
—
Methoxychlor
January 1, 2001 – March 26, 2001
Resolved
Monitoring, Regular
—
Endrin
January 1, 2001 – March 26, 2001
Resolved
Monitoring, Regular
—
Dalapon
January 1, 2001 – March 26, 2001
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2001 – December 31, 2001
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 1998 – December 31, 2000
Resolved
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
January 1, 1998 – December 31, 2000
Resolved
Monitoring, Regular
—
2,4,5-TP
January 1, 1998 – December 31, 2000
Resolved
Monitoring, Regular
—
Atrazine
January 1, 1998 – December 31, 2000
Resolved
Monitoring, Regular
—
OXAMYL
January 1, 1998 – December 31, 2000
Resolved
Monitoring, Regular
—
Methoxychlor
January 1, 1998 – December 31, 2000
Resolved
Monitoring, Regular
—
Heptachlor epoxide
January 1, 1998 – December 31, 2000
Resolved
Monitoring, Regular
—
Picloram
January 1, 1998 – December 31, 2000
Resolved
Monitoring, Regular
—
Chromium
April 1, 1989 – June 30, 1989
Archived
Monitoring, Regular
—
Fluoride
April 1, 1989 – June 30, 1989
Archived
Monitoring, Regular
—
Barium
April 1, 1989 – June 30, 1989
Archived
Monitoring, Regular
—
Selenium
April 1, 1989 – June 30, 1989
Archived
Monitoring, Regular
—
Nitrate
April 1, 1989 – June 30, 1989
Archived
Monitoring, Regular
—
Mercury
April 1, 1989 – June 30, 1989
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
July 23, 1986 – July 22, 1990
Archived
Monitoring, Regular
—
Arsenic
June 17, 1986 – June 15, 1989
Archived

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

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2025 – September 30, 2025	Monitoring, Regular	Benzene	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	Tetrachloroethylene	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	Trichloroethylene	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	Carbon tetrachloride	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	Vinyl chloride	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	Xylenes, Total	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring, Regular	CHLOROBENZENE	—	Resolved
December 20, 2024 – May 15, 2025	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
January 1, 2024 – March 31, 2024	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 2020 – September 30, 2020	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
November 1, 2019 – January 31, 2020	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	Toluene	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	Benzene	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
July 1, 2013 – September 30, 2013	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
July 1, 2013 – September 30, 2013	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
July 1, 2013 – September 30, 2013	Monitoring, Regular	CHLOROBENZENE	—	Resolved
October 1, 2009 – September 16, 2010	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
January 1, 2009 – December 31, 2009	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2009 – December 31, 2009	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Atrazine	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	2,4,5-TP	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Carbofuran	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Endrin	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	2,3,7,8-TCDD	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	2,4,5-TP	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	LASSO	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Endrin	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Simazine	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Atrazine	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Hexachlorocyclopentadiene	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Pentachlorophenol	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	2,4,5-TP	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Methoxychlor	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Dalapon	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Chlordane	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Heptachlor epoxide	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Toxaphene	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	CYANIDE	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Simazine	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Toxaphene	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	2,3,7,8-TCDD	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	BHC-GAMMA	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	2,4-D	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Atrazine	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Picloram	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Pentachlorophenol	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	2,4,5-TP	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Endothall	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Diquat	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Heptachlor	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	LASSO	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Simazine	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	BHC-GAMMA	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	2,4-D	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Glyphosate	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Pentachlorophenol	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Diquat	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	LASSO	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Endrin	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Simazine	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	LASSO	—	Resolved
January 1, 2001 – March 26, 2001	Monitoring, Regular	Pentachlorophenol	—	Resolved
January 1, 2001 – March 26, 2001	Monitoring, Regular	Pentachlorophenol	—	Resolved
January 1, 2001 – March 26, 2001	Monitoring, Regular	Methoxychlor	—	Resolved
January 1, 2001 – March 26, 2001	Monitoring, Regular	Endrin	—	Resolved
January 1, 2001 – March 26, 2001	Monitoring, Regular	Dalapon	—	Resolved
January 1, 2001 – December 31, 2001	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 1998 – December 31, 2000	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
January 1, 1998 – December 31, 2000	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
January 1, 1998 – December 31, 2000	Monitoring, Regular	2,4,5-TP	—	Resolved
January 1, 1998 – December 31, 2000	Monitoring, Regular	Atrazine	—	Resolved
January 1, 1998 – December 31, 2000	Monitoring, Regular	OXAMYL	—	Resolved
January 1, 1998 – December 31, 2000	Monitoring, Regular	Methoxychlor	—	Resolved
January 1, 1998 – December 31, 2000	Monitoring, Regular	Heptachlor epoxide	—	Resolved
January 1, 1998 – December 31, 2000	Monitoring, Regular	Picloram	—	Resolved
April 1, 1989 – June 30, 1989	Monitoring, Regular	Chromium	—	Archived
April 1, 1989 – June 30, 1989	Monitoring, Regular	Fluoride	—	Archived
April 1, 1989 – June 30, 1989	Monitoring, Regular	Barium	—	Archived
April 1, 1989 – June 30, 1989	Monitoring, Regular	Selenium	—	Archived
April 1, 1989 – June 30, 1989	Monitoring, Regular	Nitrate	—	Archived
April 1, 1989 – June 30, 1989	Monitoring, Regular	Mercury	—	Archived
July 23, 1986 – July 22, 1990	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
June 17, 1986 – June 15, 1989	Monitoring, Regular	Arsenic	—	Archived

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

Enforcement actions

December 18, 2025State Public Notification requested116 linked violations
November 5, 2025State Public Notification requested67 linked violations
November 25, 2013State Violation/Reminder Notice57 linked violations
September 6, 2007State Compliance achieved66 linked violations

Contact

FLOWING WELLS IRRIGATION DIST

520-887-4192

TUCSON, AZ 85705