TEMPE CITY OF

Arizona — Community Water System — PWSID: AZ0407100

System Information

PWSID	AZ0407100
System Name	TEMPE CITY OF
System Type	Community Water System
Water Source	Surface Water
Activity Status	Active
Owner Type	Local
EPA Region	09
Serves School	No
Wholesaler	No
First Reported	Oct 5, 1979
Last Reported	Nov 17, 2025

Location & Contact

State	Arizona
City	TEMPE
ZIP Code	85280
Address	Mail Stop 38
Organization	HOPPES, CHRISTINA
Phone	480-350-8255

Population & Service

Population Served	165,000
Service Connections	40,000

Drinking Water Violations (330)

This water system has 330 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
Jan 1, 2018	Dec 31, 2018	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Dec 31, 2018	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Dec 31, 2018	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Dec 31, 2018	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Dec 31, 2018	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Dec 31, 2018	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Dec 31, 2018	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Dec 31, 2018	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Dec 31, 2018	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Dec 31, 2018	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Dec 31, 2018	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Dec 31, 2018	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Dec 31, 2018	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Dec 31, 2018	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Dec 31, 2018	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Dec 31, 2018	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Dec 31, 2018	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Dec 31, 2018	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Dec 31, 2018	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Dec 31, 2018	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Mar 31, 2018	Di(2-ethylhexyl) phthalate	MR	No	Yes	—	0.006 mg/L	—	Resolved	Mar 31, 2018	Synthetic Organic Chemicals
Jan 1, 2018	Dec 31, 2018	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Dec 31, 2018	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Dec 31, 2018	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Dec 31, 2018	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Dec 31, 2018	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Dec 31, 2018	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Dec 31, 2018	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2018	Inorganic Chemicals
Jan 1, 2018	Mar 31, 2018	Di(2-ethylhexyl) phthalate	MR	No	Yes	—	0.006 mg/L	—	Resolved	Mar 31, 2018	Synthetic Organic Chemicals
Oct 1, 2017	Dec 31, 2017	Di(2-ethylhexyl) phthalate	MR	No	Yes	—	0.006 mg/L	—	Resolved	Dec 31, 2017	Synthetic Organic Chemicals
Oct 1, 2017	Dec 31, 2017	Di(2-ethylhexyl) phthalate	MR	No	Yes	—	0.006 mg/L	—	Resolved	Dec 31, 2017	Synthetic Organic Chemicals
Oct 1, 2017	—	Long Term 2 Enhanced Surface Water Treatment Rule	TT	Yes	No	—	—	—	Resolved	Oct 3, 2017	Long Term 2 Enhanced Surface Water Treatment Rule
Oct 1, 2017	—	Long Term 2 Enhanced Surface Water Treatment Rule	TT	Yes	No	—	—	—	Resolved	Oct 3, 2017	Long Term 2 Enhanced Surface Water Treatment Rule
Apr 1, 2017	Jun 30, 2017	TTHM	MCL	Yes	No	.085 MG/L	0.080 mg/L	.08	Resolved	Jun 30, 2017	Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2017	Jun 30, 2017	TTHM	MCL	Yes	No	.085 MG/L	0.080 mg/L	.08	Resolved	Jun 30, 2017	Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2017	Jun 30, 2017	TTHM	MCL	Yes	No	.085 MG/L	0.080 mg/L	.08	Resolved	Jun 30, 2017	Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2017	Jun 30, 2017	TTHM	MCL	Yes	No	.085 MG/L	0.080 mg/L	.08	Resolved	Jun 30, 2017	Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2016	Mar 31, 2016	Chlorine	MR	No	Yes	—	4.0 mg/L	—	Resolved	Mar 31, 2016	Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2015	Dec 31, 2015	Chlorine	MR	No	Yes	—	4.0 mg/L	—	Resolved	Dec 31, 2015	Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2014	Jun 30, 2014	CARBON, TOTAL	MR	No	Yes	—	TT	—	Archived	Jun 30, 2014	Stage 1 Disinfectants and Disinfection Byproducts Rule
May 1, 2010	May 31, 2010	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	May 31, 2010	Total Coliform Rule
May 1, 2010	May 31, 2010	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	May 31, 2010	Total Coliform Rule
Apr 1, 2010	Jun 30, 2010	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Jun 30, 2010	Arsenic Rule
Apr 1, 2010	Jun 30, 2010	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Jun 30, 2010	Arsenic Rule
Apr 1, 2008	Jun 30, 2008	Chlorine	MR	No	Yes	—	4.0 mg/L	—	Resolved	Jun 30, 2008	Stage 1 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2007	Aug 31, 2007	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Aug 31, 2007	Total Coliform Rule
Apr 1, 2007	Jun 30, 2007	TTHM	MR	No	Yes	—	0.080 mg/L	—	Resolved	Jun 30, 2007	Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2007	Jun 30, 2007	Total Haloacetic Acids (HAA5)	MR	No	Yes	—	0.060 mg/L	—	Resolved	Jun 30, 2007	Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2007	Dec 31, 2007	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2007	Nitrate Rule
Jan 1, 2007	Dec 31, 2007	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2007	Nitrate Rule

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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