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Product Safety9,700+ CPSC product recalls Food Safety28,600+ FDA food recalls Pet Safety1.3M FDA animal adverse events Drug Safety17,500+ FDA drug recalls Device Safety38,400+ FDA device recalls Workplace Safety102,900+ OSHA injury reports Brand HistoryRecall lookup by company

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TOLAS WATERWORKS CO OP

California - Community Water System - PWSID: NV0000055

System Information

PWSIDNV0000055
System NameTOLAS WATERWORKS CO OP
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedMar 24, 1979
Last ReportedMar 20, 2026

Location & Contact

StateCalifornia
CityPASADENA
ZIP Code91107
Address2500 E FOOTHILL BLVD STE 505
OrganizationHOPF, DAVE
Phone626-688-1601

Population & Service

Population Served190
Service Connections103

Drinking Water Violations (589)

This water system has 589 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
Apr 1, 2015 Jun 30, 2015 MCL Yes No .014 MG/L 0.010 mg/L .01 Resolved Jun 30, 2015 -
Apr 1, 2015 Jun 30, 2015 MCL Yes No .014 MG/L 0.010 mg/L .01 Resolved Jun 30, 2015 -
Apr 1, 2015 Jun 30, 2015 MCL Yes No .014 MG/L 0.010 mg/L .01 Resolved Jun 30, 2015 -
Apr 1, 2015 Jun 30, 2015 MCL Yes No .014 MG/L 0.010 mg/L .01 Resolved Jun 30, 2015 -
Jan 1, 2015 Mar 31, 2015 MCL Yes No .023 MG/L 0.010 mg/L .01 Resolved Mar 31, 2015 -
Jan 1, 2015 Mar 31, 2015 MCL Yes No .023 MG/L 0.010 mg/L .01 Resolved Mar 31, 2015 -
Jan 1, 2015 Mar 31, 2015 MCL Yes No .023 MG/L 0.010 mg/L .01 Resolved Mar 31, 2015 -
Jan 1, 2015 Mar 31, 2015 MCL Yes No .023 MG/L 0.010 mg/L .01 Resolved Mar 31, 2015 -
Oct 1, 2014 Dec 31, 2014 MCL Yes No .031 MG/L 0.010 mg/L .01 Resolved Dec 31, 2014 -
Oct 1, 2014 Dec 31, 2014 MCL Yes No .031 MG/L 0.010 mg/L .01 Resolved Dec 31, 2014 -
Oct 1, 2014 Dec 31, 2014 MCL Yes No .031 MG/L 0.010 mg/L .01 Resolved Dec 31, 2014 -
Oct 1, 2014 Dec 31, 2014 MCL Yes No .031 MG/L 0.010 mg/L .01 Resolved Dec 31, 2014 -
Jul 1, 2014 Sep 30, 2014 MCL Yes No .036 MG/L 0.010 mg/L .01 Resolved Sep 30, 2014 -
Jul 1, 2014 Sep 30, 2014 MCL Yes No .036 MG/L 0.010 mg/L .01 Resolved Sep 30, 2014 -
Jul 1, 2014 Sep 30, 2014 MCL Yes No .036 MG/L 0.010 mg/L .01 Resolved Sep 30, 2014 -
Jul 1, 2014 Sep 30, 2014 MCL Yes No .036 MG/L 0.010 mg/L .01 Resolved Sep 30, 2014 -
Apr 1, 2014 Jun 30, 2014 MCL Yes No .034 MG/L 0.010 mg/L .01 Resolved Jun 30, 2014 -
Apr 1, 2014 Jun 30, 2014 MCL Yes No .034 MG/L 0.010 mg/L .01 Resolved Jun 30, 2014 -
Apr 1, 2014 Jun 30, 2014 MCL Yes No .034 MG/L 0.010 mg/L .01 Resolved Jun 30, 2014 -
Apr 1, 2014 Jun 30, 2014 MCL Yes No .034 MG/L 0.010 mg/L .01 Resolved Jun 30, 2014 -
Jan 1, 2014 Mar 31, 2014 MCL Yes No .035 MG/L 0.010 mg/L .01 Resolved Mar 31, 2014 -
Jan 1, 2014 Mar 31, 2014 MCL Yes No .035 MG/L 0.010 mg/L .01 Resolved Mar 31, 2014 -
Jan 1, 2014 Mar 31, 2014 MCL Yes No .035 MG/L 0.010 mg/L .01 Resolved Mar 31, 2014 -
Jan 1, 2014 Mar 31, 2014 MCL Yes No .035 MG/L 0.010 mg/L .01 Resolved Mar 31, 2014 -
Oct 1, 2013 Dec 31, 2013 MCL Yes No .035 MG/L 0.010 mg/L .01 Resolved Dec 31, 2013 -
Oct 1, 2013 Dec 31, 2013 MCL Yes No .035 MG/L 0.010 mg/L .01 Resolved Dec 31, 2013 -
Oct 1, 2013 Dec 31, 2013 MCL Yes No .035 MG/L 0.010 mg/L .01 Resolved Dec 31, 2013 -
Oct 1, 2013 Dec 31, 2013 MCL Yes No .035 MG/L 0.010 mg/L .01 Resolved Dec 31, 2013 -
Jul 1, 2013 Sep 30, 2013 MCL Yes No .034 MG/L 0.010 mg/L .01 Resolved Sep 30, 2013 -
Jul 1, 2013 Sep 30, 2013 MCL Yes No .034 MG/L 0.010 mg/L .01 Resolved Sep 30, 2013 -
Jul 1, 2013 Sep 30, 2013 MCL Yes No .034 MG/L 0.010 mg/L .01 Resolved Sep 30, 2013 -
Jul 1, 2013 Sep 30, 2013 MCL Yes No .034 MG/L 0.010 mg/L .01 Resolved Sep 30, 2013 -
Apr 1, 2013 Jun 30, 2013 MCL Yes No .034 MG/L 0.010 mg/L .01 Resolved Jun 30, 2013 -
Apr 1, 2013 Jun 30, 2013 MCL Yes No .034 MG/L 0.010 mg/L .01 Resolved Jun 30, 2013 -
Apr 1, 2013 Jun 30, 2013 MCL Yes No .034 MG/L 0.010 mg/L .01 Resolved Jun 30, 2013 -
Apr 1, 2013 Jun 30, 2013 MCL Yes No .034 MG/L 0.010 mg/L .01 Resolved Jun 30, 2013 -
Apr 1, 2013 Jun 30, 2013 MCL Yes No .034 MG/L 0.010 mg/L .01 Resolved Jun 30, 2013 -
Jan 1, 2013 Mar 31, 2013 MCL Yes No .035 MG/L 0.010 mg/L .01 Resolved Mar 31, 2013 -
Jan 1, 2013 Mar 31, 2013 MCL Yes No .035 MG/L 0.010 mg/L .01 Resolved Mar 31, 2013 -
Jan 1, 2013 Mar 31, 2013 MCL Yes No .035 MG/L 0.010 mg/L .01 Resolved Mar 31, 2013 -
Jan 1, 2013 Mar 31, 2013 MCL Yes No .035 MG/L 0.010 mg/L .01 Resolved Mar 31, 2013 -
Jan 1, 2013 Mar 31, 2013 MCL Yes No .035 MG/L 0.010 mg/L .01 Resolved Mar 31, 2013 -
Oct 1, 2012 Dec 31, 2012 MCL Yes No .043 MG/L 0.010 mg/L .01 Resolved Dec 31, 2012 -
Oct 1, 2012 Dec 31, 2012 MCL Yes No .043 MG/L 0.010 mg/L .01 Resolved Dec 31, 2012 -
Oct 1, 2012 Dec 31, 2012 MCL Yes No .043 MG/L 0.010 mg/L .01 Resolved Dec 31, 2012 -
Oct 1, 2012 Dec 31, 2012 MCL Yes No .043 MG/L 0.010 mg/L .01 Resolved Dec 31, 2012 -
Oct 1, 2012 Dec 31, 2012 MCL Yes No .043 MG/L 0.010 mg/L .01 Resolved Dec 31, 2012 -
Jul 1, 2012 Sep 30, 2012 MCL Yes No .036 MG/L 0.010 mg/L .01 Resolved Sep 30, 2012 -
Jul 1, 2012 Sep 30, 2012 MCL Yes No .036 MG/L 0.010 mg/L .01 Resolved Sep 30, 2012 -
Apr 1, 2012 Jun 30, 2012 MCL Yes No .031 MG/L 0.010 mg/L .01 Resolved Jun 30, 2012 -

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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