CITY OF EAST PALO ALTO

California — Community Water System — PWSID: CA4110024

System Information

PWSID	CA4110024
System Name	CITY OF EAST PALO ALTO
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	EAST PALO ALTO
ZIP Code	94303
Address	901 Weeks St.
Organization	VINING, MATTHEW
Phone	650-229-3818

Population & Service

Population Served	29,519
Service Connections	3,906

Drinking Water Violations (21)

This water system has 21 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
Mar 1, 2015	Mar 31, 2015	Surface Water Treatment Rule	TT	Yes	No	—	—	—	Resolved	Mar 31, 2015	Surface Water Treatment Rule
Mar 1, 2015	Mar 31, 2015	Surface Water Treatment Rule	TT	Yes	No	—	—	—	Resolved	Mar 31, 2015	Surface Water Treatment Rule
Jun 1, 2014	Jun 30, 2014	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jun 30, 2014	Total Coliform Rule
Jun 1, 2014	Jun 30, 2014	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jun 30, 2014	Total Coliform Rule
May 1, 2014	May 31, 2014	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	May 31, 2014	Total Coliform Rule
May 1, 2014	May 31, 2014	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	May 31, 2014	Total Coliform Rule
Oct 1, 2005	Dec 31, 2005	TTHM	MR	No	Yes	—	0.080 mg/L	—	Resolved	Dec 31, 2005	Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2005	Dec 31, 2005	TTHM	MR	No	Yes	—	0.080 mg/L	—	Resolved	Dec 31, 2005	Stage 1 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2005	Sep 30, 2005	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 2005	Total Coliform Rule
Sep 1, 2005	Sep 30, 2005	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 2005	Total Coliform Rule
Aug 1, 1999	Aug 31, 1999	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Aug 31, 1999	Total Coliform Rule
Aug 1, 1999	Aug 31, 1999	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Aug 31, 1999	Total Coliform Rule
Sep 1, 1998	Sep 30, 1998	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 1998	Total Coliform Rule
Sep 1, 1998	Sep 30, 1998	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 1998	Total Coliform Rule
Sep 1, 1996	Sep 30, 1996	Coliform (TCR)	Other	No	No	—	5% of samples	—	Resolved	Sep 30, 1996	Total Coliform Rule
Sep 1, 1996	Sep 30, 1996	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 1996	Total Coliform Rule
Sep 1, 1996	Sep 30, 1996	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Sep 30, 1996	Total Coliform Rule
Sep 1, 1996	Sep 30, 1996	Coliform (TCR)	Other	No	No	—	5% of samples	—	Resolved	Sep 30, 1996	Total Coliform Rule
Jun 1, 1996	Jun 30, 1996	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Jun 30, 1996	Total Coliform Rule
Jun 1, 1996	Jun 30, 1996	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Jun 30, 1996	Total Coliform Rule
Nov 1, 1988	Nov 30, 1988		Other	No	No	—	—	—	Archived	Nov 30, 1988	Miscellaneous Other Rules

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.

Browse All Water Systems Water Safety Stats Water Safety Home

Browse All Water Systems Water Systems in California