THIM UTILITY COMPANY

Arizona — Community Water System — PWSID: AZ0410117

System Information

PWSID	AZ0410117
System Name	THIM UTILITY COMPANY
System Type	Community Water System
Water Source	Ground Water
Activity Status	Active
Owner Type	Private
EPA Region	09
Serves School	No
Wholesaler	No
First Reported	Oct 5, 1979
Last Reported	Nov 17, 2025

Location & Contact

State	Arizona
City	TUCSON
ZIP Code	85754
Address	PO BOX 85160
Organization	SAGUARO WATER COMPANY
Phone	520-624-1460

Population & Service

Population Served	310
Service Connections	127

Drinking Water Violations (50)

This water system has 50 violations recorded in the EPA SDWIS database.

Begin Date	End Date	Contaminant	Category	Health-Based	Major	Measured	Federal MCL	State MCL	Status	Return to Compliance	Rule
Oct 2, 2019	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Oct 2, 2019	Consumer Confidence Rule
Oct 2, 2019	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Oct 2, 2019	Consumer Confidence Rule
Jul 1, 2019	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Aug 19, 2019	Consumer Confidence Rule
Jul 1, 2019	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Aug 19, 2019	Consumer Confidence Rule
Jan 1, 2018	Aug 31, 2018	TTHM	MR	No	Yes	—	0.080 mg/L	—	Resolved	Aug 31, 2018	Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2018	Aug 31, 2018	Total Haloacetic Acids (HAA5)	MR	No	Yes	—	0.060 mg/L	—	Resolved	Aug 31, 2018	Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2018	Aug 31, 2018	Total Haloacetic Acids (HAA5)	MR	No	Yes	—	0.060 mg/L	—	Resolved	Aug 31, 2018	Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2018	Aug 31, 2018	TTHM	MR	No	Yes	—	0.080 mg/L	—	Resolved	Aug 31, 2018	Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2014	Sep 30, 2014	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Sep 30, 2014	Total Coliform Rule
Sep 1, 2014	Sep 30, 2014	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Sep 30, 2014	Total Coliform Rule
Jul 1, 2010	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Jul 15, 2010	Consumer Confidence Rule
Jul 1, 2007	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Jun 26, 2008	Consumer Confidence Rule
Dec 1, 2006	Dec 31, 2006	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Dec 31, 2006	Total Coliform Rule
Sep 1, 2006	Sep 30, 2006	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Sep 30, 2006	Total Coliform Rule
Aug 1, 2006	Aug 31, 2006	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Aug 31, 2006	Total Coliform Rule
Jul 1, 2006	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Aug 18, 2006	Consumer Confidence Rule
Jul 1, 2005	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Jul 14, 2005	Consumer Confidence Rule
Jan 1, 2005	Dec 31, 2005	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2005	Nitrate Rule
Jan 1, 2005	Dec 31, 2005	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2005	Nitrate Rule
Jul 1, 2004	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Jul 14, 2005	Consumer Confidence Rule
Jul 1, 2003	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Jul 14, 2005	Consumer Confidence Rule
Feb 1, 2003	Feb 28, 2003	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Feb 28, 2003	Total Coliform Rule
Jul 1, 2002	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Jul 14, 2005	Consumer Confidence Rule
Sep 1, 1999	Sep 30, 1999	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Sep 30, 1999	Total Coliform Rule
Jan 1, 1999	Dec 31, 1999	1,1-Dichloroethylene	MR	No	Yes	—	0.007 mg/L	—	Resolved	Dec 31, 1999	Volatile Organic Chemicals
Jan 1, 1999	Dec 31, 1999	CHLOROBENZENE	MR	No	Yes	—	0.1 mg/L	—	Resolved	Dec 31, 1999	Volatile Organic Chemicals
Jan 1, 1999	Dec 31, 1999	Toluene	MR	No	Yes	—	1 mg/L	—	Resolved	Dec 31, 1999	Volatile Organic Chemicals
Jan 1, 1999	Dec 31, 1999	1,1,2-Trichloroethane	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 1999	Volatile Organic Chemicals
Jan 1, 1999	Dec 31, 1999	Carbon tetrachloride	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 1999	Volatile Organic Chemicals
Jan 1, 1999	Dec 31, 1999	1,2,4-Trichlorobenzene	MR	No	Yes	—	0.07 mg/L	—	Resolved	Dec 31, 1999	Volatile Organic Chemicals
Jan 1, 1999	Dec 31, 1999	1,1,1-Trichloroethane	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 1999	Volatile Organic Chemicals
Jan 1, 1999	Dec 31, 1999	trans-1,2-Dichloroethylene	MR	No	Yes	—	0.1 mg/L	—	Resolved	Dec 31, 1999	Volatile Organic Chemicals
Jan 1, 1999	Dec 31, 1999	1,1,2-Trichloroethane	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 1999	Volatile Organic Chemicals
Jan 1, 1999	Dec 31, 1999	Trichloroethylene	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 1999	Volatile Organic Chemicals
Jan 1, 1999	Dec 31, 1999	Carbon tetrachloride	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 1999	Volatile Organic Chemicals
Jan 1, 1999	Dec 31, 1999	Styrene	MR	No	Yes	—	0.1 mg/L	—	Resolved	Dec 31, 1999	Volatile Organic Chemicals
Jan 1, 1999	Dec 31, 1999	Trichloroethylene	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 1999	Volatile Organic Chemicals
Jan 1, 1998	Dec 31, 1998	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 1998	Nitrate Rule
Dec 1, 1991	Dec 31, 1991	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Dec 31, 1991	Total Coliform Rule
Jul 1, 1988	Sep 30, 1988	Barium	MR	No	Yes	—	2 mg/L	—	Archived	Sep 30, 1988	Inorganic Chemicals
Jul 1, 1988	Sep 30, 1988	Chromium	MR	No	Yes	—	0.1 mg/L	—	Archived	Sep 30, 1988	Inorganic Chemicals
Jul 1, 1988	Sep 30, 1988	Mercury	MR	No	Yes	—	0.002 mg/L	—	Archived	Sep 30, 1988	Inorganic Chemicals
Jul 1, 1988	Sep 30, 1988	Selenium	MR	No	Yes	—	0.05 mg/L	—	Archived	Sep 30, 1988	Inorganic Chemicals
Jul 1, 1988	Sep 30, 1988	Fluoride	MR	No	Yes	—	4.0 mg/L	—	Archived	Sep 30, 1988	Inorganic Chemicals
Jul 1, 1988	Sep 30, 1988	Nitrate	MR	No	Yes	—	10 mg/L	—	Archived	Sep 30, 1988	Nitrate Rule
Jul 1, 1988	Sep 30, 1988	Cadmium	MR	No	Yes	—	0.005 mg/L	—	Archived	Sep 30, 1988	Inorganic Chemicals
Sep 27, 1985	Sep 25, 1988	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Archived	Sep 25, 1988	Arsenic Rule
Jul 1, 1980	Jun 30, 1984	Gross Alpha, Excl. Radon and U	MR	No	Yes	—	15 pCi/L	—	Archived	Jun 30, 1984	Radionuclides and Revised Rad Rule
—	—		—	No	No	—	—	—	—	—	—
—	—		—	No	No	—	—	—	—	—	—

About This Water System

Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.

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