CERES, CITY OF

California — Community Water System — PWSID: CA5010028

System Information

PWSID	CA5010028
System Name	CERES, CITY OF
System Type	Community Water System
Water Source	Surface Water Purchased
Activity Status	Active
Owner Type	Local
EPA Region	09
Serves School	No
Wholesaler	No
First Reported	Mar 22, 1979
Last Reported	Nov 17, 2025

Location & Contact

State	California
City	CERES
ZIP Code	95307
Address	2220 Hackett Road
Organization	CASAS, JOSHUA
Phone	209-538-5613

Population & Service

Population Served	54,513
Service Connections	11,881

Drinking Water Violations (25)

This water system has 25 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 17, 2024	—	LEAD AND COPPER RULE REVISIONS	RPT	No	No	—	—	—	Unaddressed	—	Lead and Copper Rule Revisions
Oct 17, 2024	—	LEAD AND COPPER RULE REVISIONS	TT	Yes	No	—	—	—	Unaddressed	—	Lead and Copper Rule Revisions
Oct 1, 2015	Dec 31, 2015	Combined Uranium	MCL	Yes	No	30 PCI/L	30 ug/L	20	Resolved	Dec 31, 2015	Radionuclides and Revised Rad Rule
Oct 1, 2015	Dec 31, 2015	Combined Uranium	MCL	Yes	No	30 PCI/L	30 ug/L	20	Resolved	Dec 31, 2015	Radionuclides and Revised Rad Rule
Apr 1, 2010	Apr 30, 2010	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Apr 30, 2010	Total Coliform Rule
Apr 1, 2010	Apr 30, 2010	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Apr 30, 2010	Total Coliform Rule
Jun 1, 2009	Jun 30, 2009	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jun 30, 2009	Total Coliform Rule
Jun 1, 2009	Jun 30, 2009	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jun 30, 2009	Total Coliform Rule
Jul 1, 2007	Jul 31, 2007	Combined Uranium	MCL	Yes	No	21.2 PCI/L	30 ug/L	20	Resolved	Jul 31, 2007	Radionuclides and Revised Rad Rule
Jul 1, 2007	Jul 31, 2007	Combined Uranium	MCL	Yes	No	21.2 PCI/L	30 ug/L	20	Resolved	Jul 31, 2007	Radionuclides and Revised Rad Rule
Apr 1, 2007	Jun 30, 2007	Nitrate	MCL	Yes	No	48.4 MG/L	10 mg/L	45	Resolved	Jun 7, 2007	Nitrate Rule
Apr 1, 2007	Jun 30, 2007	Nitrate	MCL	Yes	No	48.4 MG/L	10 mg/L	45	Resolved	Jun 7, 2007	Nitrate Rule
Jan 1, 2003	Jan 31, 2003	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jan 31, 2003	Total Coliform Rule
Jan 1, 2003	Jan 31, 2003	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jan 31, 2003	Total Coliform Rule
Apr 1, 2001	Apr 30, 2001	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Apr 30, 2001	Total Coliform Rule
Apr 1, 2001	Apr 30, 2001	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Apr 30, 2001	Total Coliform Rule
Mar 1, 1995	Mar 31, 1995	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Mar 31, 1995	Total Coliform Rule
Mar 1, 1995	Mar 31, 1995	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Mar 31, 1995	Total Coliform Rule
Aug 1, 1993	Aug 31, 1993	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Aug 31, 1993	Total Coliform Rule
Apr 1, 1993	Apr 30, 1993	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Apr 30, 1993	Total Coliform Rule
Apr 1, 1993	Apr 30, 1993	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Apr 30, 1993	Total Coliform Rule
Apr 1, 1993	Apr 30, 1993	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Apr 30, 1993	Total Coliform Rule
Dec 1, 1992	Dec 31, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Dec 31, 1992	Total Coliform Rule
Mar 31, 1992	Mar 31, 1993	Combined Uranium	MR	No	No	—	30 ug/L	—	Resolved	Mar 31, 1993	Radionuclides and Revised Rad Rule
Mar 31, 1992	Mar 31, 1993	Combined Uranium	MR	No	No	—	30 ug/L	—	Resolved	Mar 31, 1993	Radionuclides and Revised Rad 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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