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CSP - BIG BASIN STATE PARK

California — Community Water System — PWSID: CA4410301

System Information

PWSIDCA4410301
System NameCSP - BIG BASIN STATE PARK
System TypeCommunity Water System
Water SourceSurface Water
Activity StatusInactive
Owner TypeState
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedMar 6, 1987
Last ReportedNov 17, 2025

Location & Contact

StateCalifornia
CityFELTON
ZIP Code95018
Address303 Big Trees Park Road
OrganizationBENTLEY, JACOB
Phone831-251-2884

Population & Service

Population Served3,029
Service Connections170

Drinking Water Violations (54)

This water system has 54 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, 2019 Mar 31, 2019 TTHM MCL Yes No .166 MG/L 0.080 mg/L .08 Archived Mar 31, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2019 Mar 31, 2019 TTHM MCL Yes No .112 MG/L 0.080 mg/L .08 Archived Mar 31, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2018 Dec 31, 2018 TTHM MCL Yes No .178 MG/L 0.080 mg/L .08 Archived Dec 31, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2018 Sep 30, 2018 TTHM MCL Yes No .185 MG/L 0.080 mg/L .08 Archived Sep 30, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2018 Jun 30, 2018 TTHM MCL Yes No .153 MG/L 0.080 mg/L .08 Archived Jun 30, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2018 Jun 30, 2018 TTHM MCL Yes No .153 MG/L 0.080 mg/L .08 Archived Jun 30, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2018 Jun 30, 2018 TTHM MCL Yes No .153 MG/L 0.080 mg/L .08 Archived Jun 30, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2018 Mar 31, 2018 TTHM MCL Yes No .153 MG/L 0.080 mg/L .08 Archived Mar 31, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2018 Mar 31, 2018 TTHM MCL Yes No .153 MG/L 0.080 mg/L .08 Archived Mar 31, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2018 Mar 31, 2018 TTHM MCL Yes No .153 MG/L 0.080 mg/L .08 Archived Mar 31, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2017 Dec 31, 2017 TTHM MCL Yes No .186 MG/L 0.080 mg/L .08 Archived Dec 31, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2017 Dec 31, 2017 TTHM MCL Yes No .186 MG/L 0.080 mg/L .08 Archived Dec 31, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2017 Dec 31, 2017 TTHM MCL Yes No .186 MG/L 0.080 mg/L .08 Archived Dec 31, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2017 Sep 30, 2017 TTHM MCL Yes No .194 MG/L 0.080 mg/L .08 Archived Sep 30, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2017 Sep 30, 2017 TTHM MCL Yes No .194 MG/L 0.080 mg/L .08 Archived Sep 30, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2017 Jun 30, 2017 TTHM MCL Yes No .19 MG/L 0.080 mg/L .08 Archived Jun 30, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2017 Jun 30, 2017 TTHM MCL Yes No .19 MG/L 0.080 mg/L .08 Archived Jun 30, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017 Mar 31, 2017 TTHM MCL Yes No .18 MG/L 0.080 mg/L .08 Archived Mar 31, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017 Mar 31, 2017 TTHM MCL Yes No .18 MG/L 0.080 mg/L .08 Archived Mar 31, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2016 Dec 31, 2016 TTHM MCL Yes No .18 MG/L 0.080 mg/L .08 Archived Dec 31, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2016 Dec 31, 2016 TTHM MCL Yes No .18 MG/L 0.080 mg/L .08 Archived Dec 31, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2016 Sep 30, 2016 TTHM MCL Yes No .199 MG/L 0.080 mg/L .08 Archived Sep 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2016 Sep 30, 2016 TTHM MCL Yes No .199 MG/L 0.080 mg/L .08 Archived Sep 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2016 Jun 30, 2016 TTHM MCL Yes No .222 MG/L 0.080 mg/L .08 Archived Jun 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2016 Jun 30, 2016 TTHM MCL Yes No .222 MG/L 0.080 mg/L .08 Archived Jun 30, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2016 Mar 31, 2016 TTHM MCL Yes No .229 MG/L 0.080 mg/L .08 Archived Mar 31, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2016 Mar 31, 2016 TTHM MCL Yes No .229 MG/L 0.080 mg/L .08 Archived Mar 31, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2015 Dec 31, 2015 TTHM MCL Yes No .215 MG/L 0.080 mg/L .06 Archived Dec 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2015 Dec 31, 2015 TTHM MCL Yes No .215 MG/L 0.080 mg/L .06 Archived Dec 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2015 Sep 30, 2015 TTHM MCL Yes No .187 MG/L 0.080 mg/L .08 Archived Sep 30, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2015 Jun 30, 2015 TTHM MCL Yes No .167 MG/L 0.080 mg/L .08 Archived Jun 30, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 Mar 31, 2015 TTHM MCL Yes No .158 MG/L 0.080 mg/L .08 Archived Mar 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 Mar 31, 2015 TTHM MCL Yes No .158 MG/L 0.080 mg/L .08 Archived Mar 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2014 Dec 31, 2014 TTHM MCL Yes No .145 MG/L 0.080 mg/L .08 Archived Dec 31, 2014 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2014 Dec 31, 2014 TTHM MCL Yes No .145 MG/L 0.080 mg/L .08 Archived Dec 31, 2014 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2014 Sep 30, 2014 TTHM MCL Yes No .139 MG/L 0.080 mg/L .08 Archived Sep 30, 2014 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2014 Sep 30, 2014 TTHM MCL Yes No .139 MG/L 0.080 mg/L .08 Archived Sep 30, 2014 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2014 Jun 30, 2014 TTHM MCL Yes No .138 MG/L 0.080 mg/L .08 Archived Jun 30, 2014 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2014 Jun 30, 2014 TTHM MCL Yes No .138 MG/L 0.080 mg/L .08 Archived Jun 30, 2014 Stage 2 Disinfectants and Disinfection Byproducts Rule
Mar 1, 2014 Mar 31, 2014 Surface Water Treatment Rule TT Yes No — — — Resolved Mar 31, 2014 Surface Water Treatment Rule
Mar 1, 2014 Mar 31, 2014 Surface Water Treatment Rule TT Yes No — — — Resolved Mar 31, 2014 Surface Water Treatment Rule
Jan 1, 2012 Jan 31, 2012 Surface Water Treatment Rule MR No Yes — — — Resolved Jan 31, 2012 Surface Water Treatment Rule
Jan 1, 2012 Jan 31, 2012 Surface Water Treatment Rule MR No Yes — — — Resolved Jan 31, 2012 Surface Water Treatment Rule
Jan 1, 2012 Jan 31, 2012 Surface Water Treatment Rule TT Yes No — — — Resolved Jan 31, 2012 Surface Water Treatment Rule
Jan 1, 2012 Jan 31, 2012 Surface Water Treatment Rule TT Yes No — — — Resolved Jan 31, 2012 Surface Water Treatment Rule
Apr 1, 2011 Jun 30, 2011 TTHM MCL Yes No .09 MG/L 0.080 mg/L .08 Resolved Jun 30, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2011 Jun 30, 2011 TTHM MCL Yes No .09 MG/L 0.080 mg/L .08 Resolved Jun 30, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule
May 1, 2005 May 31, 2005 Surface Water Treatment Rule TT Yes No — — — Resolved May 31, 2005 Surface Water Treatment Rule
May 1, 2005 May 31, 2005 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved May 31, 2005 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
May 1, 2005 May 31, 2005 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved May 31, 2005 Interim and Long Term 1 Enhanced Surface Water Treatment 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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