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RIPON, CITY OF

California — Community Water System — PWSID: CA3910007

System Information

PWSIDCA3910007
System NameRIPON, CITY OF
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedMar 22, 1979
Last ReportedNov 17, 2025

Location & Contact

StateCalifornia
CityRIPON
ZIP Code95366
Address259 N. WILMA AVE
OrganizationPEASE, JAMES
Phone209-599-2108

Population & Service

Population Served15,741
Service Connections5,102

Drinking Water Violations (28)

This water system has 28 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 1, 2014 Dec 31, 2014 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2014 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2014 Dec 31, 2014 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2014 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2014 Dec 31, 2014 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2014 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2014 Dec 31, 2014 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2014 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2010 — Consumer Confidence Rule Other No No — — — Resolved Sep 30, 2010 Consumer Confidence Rule
Jul 1, 2010 — Consumer Confidence Rule Other No No — — — Resolved Sep 30, 2010 Consumer Confidence Rule
Dec 19, 2001 Mar 19, 2002 Nitrate MCL Yes No 47.5 MG/L 10 mg/L 45 Resolved Feb 27, 2002 Nitrate Rule
Dec 19, 2001 Mar 19, 2002 Nitrate MCL Yes No 47.5 MG/L 10 mg/L 45 Resolved Feb 27, 2002 Nitrate Rule
Jul 23, 2001 Oct 22, 2001 Tetrachloroethylene MCL Yes No .006 MG/L 0.005 mg/L .005 Resolved Oct 18, 2001 Volatile Organic Chemicals
Jul 23, 2001 Oct 22, 2001 Tetrachloroethylene MCL Yes No .006 MG/L 0.005 mg/L .005 Resolved Oct 18, 2001 Volatile Organic Chemicals
Dec 1, 2000 Dec 31, 2000 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Dec 31, 2000 Total Coliform Rule
Dec 1, 2000 Dec 31, 2000 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Dec 31, 2000 Total Coliform Rule
Sep 1, 2000 Sep 30, 2000 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 30, 2000 Total Coliform Rule
Sep 1, 2000 Sep 30, 2000 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 30, 2000 Total Coliform Rule
Nov 1, 1999 Nov 30, 1999 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Nov 30, 1999 Total Coliform Rule
Nov 1, 1999 Nov 30, 1999 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Nov 30, 1999 Total Coliform Rule
Sep 1, 1999 Sep 30, 1999 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 21, 1999 Total Coliform Rule
Sep 1, 1999 Sep 30, 1999 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 21, 1999 Total Coliform Rule
Dec 1, 1997 Dec 31, 1997 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Dec 31, 1997 Total Coliform Rule
Jun 1, 1997 Jun 30, 1997 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 1997 Total Coliform Rule
Oct 1, 1995 Oct 31, 1995 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Oct 24, 1995 Total Coliform Rule
Jul 1, 1995 Jul 31, 1995 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Jul 31, 1995 Total Coliform Rule
Apr 1, 1993 Apr 30, 1993 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Apr 30, 1993 Total Coliform Rule
Aug 1, 1989 Aug 31, 1989 Other No No — — — Archived Aug 31, 1989 Miscellaneous Other Rules
Nov 1, 1988 Nov 30, 1988 Nitrate MR No Yes — 10 mg/L — Archived Nov 30, 1988 Nitrate Rule
Nov 1, 1988 Nov 30, 1988 Fluoride MR No Yes — 4.0 mg/L — Archived Nov 30, 1988 Inorganic Chemicals
Nov 1, 1988 Nov 30, 1988 Other No No — — — Archived Nov 30, 1988 Miscellaneous Other Rules
Nov 1, 1988 Nov 30, 1988 Selenium MR No Yes — 0.05 mg/L — Archived Nov 30, 1988 Inorganic Chemicals

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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