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TWIN VALLEY INC

California - Community Water System - PWSID: CA4300575

System Information

PWSIDCA4300575
System NameTWIN VALLEY INC
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedNov 30, 1981
Last ReportedMar 20, 2026

Location & Contact

StateCalifornia
CityCASTROVILLE
ZIP Code95012
AddressP.O. Box 615
OrganizationFARMER, MILES
Phone831-920-6796

Population & Service

Population Served317
Service Connections96

Drinking Water Violations (129)

This water system has 129 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
Nov 1, 2023 Nov 30, 2023 MCL Yes No 10.5 MG/L 10 mg/L 10 Archived Nov 30, 2023 -
Jul 1, 2023 Jul 31, 2023 MCL Yes No 10.6 MG/L 10 mg/L 10 Archived Jul 31, 2023 -
Jun 1, 2023 Jun 30, 2023 MCL Yes No 10.5 MG/L 10 mg/L 10 Archived Jun 30, 2023 -
Nov 1, 2022 Nov 30, 2022 MCL Yes No 10.6 MG/L 10 mg/L 10 Archived Nov 30, 2022 -
Oct 1, 2022 Oct 31, 2022 MCL Yes No 10.7 MG/L 10 mg/L 10 Archived Oct 31, 2022 -
Sep 1, 2022 Sep 30, 2022 MCL Yes No 11 MG/L 10 mg/L 10 Archived Sep 30, 2022 -
Aug 1, 2022 Aug 31, 2022 MCL Yes No 10.7 MG/L 10 mg/L 10 Archived Aug 31, 2022 -
Jul 1, 2022 Jul 31, 2022 MCL Yes No 10.8 MG/L 10 mg/L 10 Archived Jul 31, 2022 -
May 1, 2022 May 31, 2022 MCL Yes No 10.5 MG/L 10 mg/L 10 Archived May 31, 2022 -
Dec 1, 2021 Dec 31, 2021 MCL Yes No 10.8 MG/L 10 mg/L 10 Archived Dec 31, 2021 -
Nov 1, 2021 Nov 30, 2021 MCL Yes No 11.1 MG/L 10 mg/L 10 Archived Nov 30, 2021 -
Oct 1, 2021 Oct 31, 2021 MCL Yes No 10.8 MG/L 10 mg/L 10 Archived Oct 31, 2021 -
Sep 1, 2021 Sep 30, 2021 MCL Yes No 11.3 MG/L 10 mg/L 10 Archived Sep 30, 2021 -
Aug 1, 2021 Aug 31, 2021 MCL Yes No 11.3 MG/L 10 mg/L 10 Archived Aug 31, 2021 -
Jul 1, 2021 Jul 31, 2021 MCL Yes No 11.4 MG/L 10 mg/L 10 Archived Jul 31, 2021 -
Jun 1, 2021 Jun 30, 2021 MCL Yes No 11.6 MG/L 10 mg/L 10 Archived Jun 30, 2021 -
May 1, 2021 May 31, 2021 MCL Yes No 11.5 MG/L 10 mg/L 10 Archived May 31, 2021 -
Apr 1, 2021 Apr 30, 2021 MCL Yes No 11.6 MG/L 10 mg/L 10 Archived Apr 30, 2021 -
Mar 1, 2021 Mar 31, 2021 MCL Yes No 11.4 MG/L 10 mg/L 10 Archived Mar 31, 2021 -
Feb 1, 2021 Feb 28, 2021 MCL Yes No 11.7 MG/L 10 mg/L 10 Archived Feb 28, 2021 -
Jan 1, 2021 Jan 31, 2021 MCL Yes No 11.9 MG/L 10 mg/L 10 Archived Jan 31, 2021 -
Dec 1, 2020 Dec 31, 2020 MCL Yes No 12.1 MG/L 10 mg/L 10 Archived Dec 31, 2020 -
Nov 1, 2020 Nov 30, 2020 MCL Yes No 11.8 MG/L 10 mg/L 10 Archived Nov 30, 2020 -
Oct 1, 2020 Oct 31, 2020 MCL Yes No 11.5 MG/L 10 mg/L 10 Archived Oct 31, 2020 -
Aug 1, 2020 Aug 31, 2020 MCL Yes No 12 MG/L 10 mg/L 10 Archived Aug 31, 2020 -
Jul 1, 2020 Jul 31, 2020 MCL Yes No 11.8 MG/L 10 mg/L 10 Archived Jul 31, 2020 -
Jun 1, 2020 Jun 30, 2020 MCL Yes No 11.7 MG/L 10 mg/L 10 Archived Jun 30, 2020 -
May 1, 2020 May 31, 2020 MCL Yes No 11.5 MG/L 10 mg/L 10 Archived May 31, 2020 -
Apr 1, 2020 Apr 30, 2020 MCL Yes No 10.5 MG/L 10 mg/L 10 Archived Apr 30, 2020 -
Mar 1, 2020 Mar 31, 2020 MCL Yes No 11.7 MG/L 10 mg/L 10 Archived Mar 31, 2020 -
Feb 1, 2020 Feb 29, 2020 MCL Yes No 11.6 MG/L 10 mg/L 10 Archived Feb 29, 2020 -
Jan 1, 2020 Jan 31, 2020 MCL Yes No 12 MG/L 10 mg/L 10 Archived Jan 31, 2020 -
Dec 1, 2019 Dec 31, 2019 MCL Yes No 11.5 MG/L 10 mg/L 10 Archived Dec 31, 2019 -
Nov 1, 2019 Nov 30, 2019 MCL Yes No 11.9 MG/L 10 mg/L 10 Archived Nov 30, 2019 -
Oct 1, 2019 Oct 31, 2019 MCL Yes No 11.8 MG/L 10 mg/L 10 Archived Oct 31, 2019 -
Sep 1, 2019 Sep 30, 2019 MCL Yes No 11.3 MG/L 10 mg/L 10 Archived Sep 30, 2019 -
Aug 1, 2019 Aug 31, 2019 MCL Yes No 11.5 MG/L 10 mg/L 10 Archived Aug 31, 2019 -
Jul 1, 2019 Jul 31, 2019 MCL Yes No 11.9 MG/L 10 mg/L 10 Archived Jul 31, 2019 -
Jun 1, 2019 Jun 30, 2019 MCL Yes No 11.1 MG/L 10 mg/L 10 Archived Jun 30, 2019 -
May 1, 2019 May 31, 2019 MCL Yes No 11.5 MG/L 10 mg/L 10 Archived May 31, 2019 -
Jan 1, 2019 Jan 31, 2019 MCL Yes No 12 MG/L 10 mg/L 10 Archived Jan 31, 2019 -
Dec 1, 2018 Dec 31, 2018 MCL Yes No 11.3667 MG/L 10 mg/L 10 Archived Dec 31, 2018 -
Nov 1, 2018 Nov 30, 2018 MCL Yes No 12.1 MG/L 10 mg/L 10 Archived Nov 30, 2018 -
Oct 1, 2018 Oct 31, 2018 MCL Yes No 11.8 MG/L 10 mg/L 10 Archived Oct 31, 2018 -
Sep 1, 2018 Sep 30, 2018 MCL Yes No 11.8 MG/L 10 mg/L 10 Archived Sep 30, 2018 -
Aug 1, 2018 Aug 31, 2018 MCL Yes No 11.6 MG/L 10 mg/L 10 Archived Aug 31, 2018 -
Jul 1, 2018 Jul 31, 2018 MCL Yes No 11.2 MG/L 10 mg/L 10 Archived Jul 31, 2018 -
Jun 1, 2018 Jun 30, 2018 MCL Yes No 11.6 MG/L 10 mg/L 10 Archived Jun 30, 2018 -
May 1, 2018 May 31, 2018 MCL Yes No 11.4 MG/L 10 mg/L 10 Archived May 31, 2018 -
Apr 1, 2018 Apr 30, 2018 MCL Yes No 11 MG/L 10 mg/L 10 Archived Apr 30, 2018 -

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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