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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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GUATAY MUTUAL BENEFIT CORPORATION

California - Community Water System - PWSID: CA3700897

System Information

PWSIDCA3700897
System NameGUATAY MUTUAL BENEFIT CORPORATION
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedMar 22, 1979
Last ReportedMar 20, 2026

Location & Contact

StateCalifornia
CityGUATAY
ZIP Code91931
AddressP.O. Box 310037
OrganizationRICHARDSON, SARA
Phone619-627-9526

Population & Service

Population Served100
Service Connections32

Drinking Water Violations (77)

This water system has 77 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, 2023 Dec 31, 2023 MCL Yes No 68 PCI/L 30 ug/L 20 Archived Dec 31, 2023 -
Oct 1, 2023 Dec 31, 2023 MCL Yes No 71 PCI/L 30 ug/L 20 Archived Dec 31, 2023 -
Jul 1, 2023 Sep 30, 2023 MCL Yes No 76 PCI/L 30 ug/L 20 Archived Sep 30, 2023 -
Jul 1, 2023 Sep 30, 2023 MCL Yes No 130 PCI/L 30 ug/L 20 Archived Sep 30, 2023 -
Jan 1, 2023 Mar 31, 2023 MCL Yes No 41 PCI/L 30 ug/L 20 Archived Mar 31, 2023 -
Jan 1, 2023 Dec 31, 2023 MR No Yes - 10 mg/L - Archived Dec 31, 2023 -
Jan 1, 2023 Mar 31, 2023 MCL Yes No 110 PCI/L 30 ug/L 20 Archived Mar 31, 2023 -
Jan 1, 2023 Mar 31, 2023 MCL Yes No 55 PCI/L 30 ug/L 20 Archived Mar 31, 2023 -
Oct 1, 2022 Dec 31, 2022 MCL Yes No 64 PCI/L 30 ug/L 20 Archived Dec 31, 2022 -
Oct 1, 2022 Dec 31, 2022 MCL Yes No 100 PCI/L 30 ug/L 20 Archived Dec 31, 2022 -
Oct 1, 2022 Dec 31, 2022 MCL Yes No 80 PCI/L 30 ug/L 20 Archived Dec 31, 2022 -
Jul 1, 2022 Sep 30, 2022 MCL Yes No 110 PCI/L 30 ug/L 20 Archived Sep 30, 2022 -
Jul 1, 2022 Sep 30, 2022 MCL Yes No 49 PCI/L 30 ug/L 20 Archived Sep 30, 2022 -
Jul 1, 2022 Sep 30, 2022 MCL Yes No 68 PCI/L 30 ug/L 20 Archived Sep 30, 2022 -
Jan 1, 2022 Mar 31, 2022 MCL Yes No 100 PCI/L 30 ug/L 20 Archived Mar 31, 2022 -
Jan 1, 2022 Mar 31, 2022 MCL Yes No 130 PCI/L 30 ug/L 20 Archived Mar 31, 2022 -
Jan 1, 2022 Mar 31, 2022 MCL Yes No 40 PCI/L 30 ug/L 20 Archived Mar 31, 2022 -
Oct 1, 2021 - MR No No - TT - Addressed - -
Oct 1, 2021 Dec 31, 2021 MCL Yes No 44.2 PCI/L 30 ug/L 20 Archived Dec 31, 2021 -
Oct 1, 2021 Dec 31, 2021 MCL Yes No 58.2 PCI/L 30 ug/L 20 Archived Dec 31, 2021 -
Oct 1, 2021 Dec 31, 2021 MCL Yes No 42 PCI/L 30 ug/L 20 Archived Dec 31, 2021 -
Apr 1, 2021 Jun 30, 2021 MCL Yes No 40.6 PCI/L 30 ug/L 20 Archived Jun 30, 2021 -
Apr 1, 2021 Jun 30, 2021 MCL Yes No 116 PCI/L 30 ug/L 20 Archived Jun 30, 2021 -
Apr 1, 2021 Jun 30, 2021 MCL Yes No 128 PCI/L 30 ug/L 20 Archived Jun 30, 2021 -
Jan 1, 2021 Mar 31, 2021 MCL Yes No 108.73 PCI/L 30 ug/L 20 Archived Mar 31, 2021 -
Jan 1, 2021 Mar 31, 2021 MCL Yes No 37.7 PCI/L 30 ug/L 20 Archived Mar 31, 2021 -
Oct 1, 2020 Dec 31, 2020 MCL Yes No 32.7 PCI/L 30 ug/L 20 Archived Dec 31, 2020 -
Oct 1, 2020 Dec 31, 2020 MCL Yes No 116.5 PCI/L 30 ug/L 20 Archived Dec 31, 2020 -
Jul 1, 2020 Sep 30, 2020 MCL Yes No 30.43 PCI/L 30 ug/L 20 Archived Sep 30, 2020 -
Apr 1, 2020 Jun 30, 2020 MCL Yes No 90.1 PCI/L 30 ug/L 20 Archived Jun 30, 2020 -
Oct 1, 2019 Dec 31, 2019 MCL Yes No 53 PCI/L 30 ug/L 20 Archived Dec 31, 2019 -
Oct 1, 2019 Dec 31, 2019 MCL Yes No 69.4 PCI/L 30 ug/L 20 Archived Dec 31, 2019 -
Apr 1, 2019 Jun 30, 2019 MCL Yes No 26.8 PCI/L 30 ug/L - Archived Jun 30, 2019 -
Apr 1, 2019 Jun 30, 2019 MCL Yes No 65.7 PCI/L 30 ug/L - Archived Jun 30, 2019 -
Apr 1, 2019 Jun 30, 2019 MCL Yes No 29.2 PCI/L 30 ug/L - Archived Jun 30, 2019 -
Apr 1, 2019 Jun 30, 2019 MCL Yes No 26.8 PCI/L 30 ug/L - Archived Jun 30, 2019 -
Apr 1, 2019 Jun 30, 2019 MCL Yes No 29.2 PCI/L 30 ug/L - Archived Jun 30, 2019 -
Apr 1, 2019 Jun 30, 2019 MCL Yes No 65.7 PCI/L 30 ug/L - Archived Jun 30, 2019 -
Jan 1, 2019 Mar 31, 2019 MCL Yes No 86.2 PCI/L 30 ug/L - Archived Mar 31, 2019 -
Jan 1, 2019 Mar 31, 2019 MCL Yes No 86.2 PCI/L 30 ug/L - Archived Mar 31, 2019 -
Jan 1, 2019 Mar 31, 2019 MCL Yes No 93.6 PCI/L 30 ug/L - Archived Mar 31, 2019 -
Jan 1, 2019 Mar 31, 2019 MCL Yes No 93.6 PCI/L 30 ug/L - Archived Mar 31, 2019 -
Oct 1, 2018 Dec 31, 2018 MCL Yes No 94.2 PCI/L 30 ug/L - Archived Dec 31, 2018 -
Oct 1, 2018 Dec 31, 2018 MCL Yes No 83.6 PCI/L 30 ug/L - Archived Dec 31, 2018 -
Jul 1, 2018 Sep 30, 2018 MCL Yes No 57.9 PCI/L 30 ug/L - Archived Sep 30, 2018 -
Apr 1, 2018 Jun 30, 2018 MCL Yes No 49.65 PCI/L 30 ug/L 30 Archived Jun 30, 2018 -
Jan 1, 2018 Mar 31, 2018 MCL Yes No 41.03 PCI/L 30 ug/L 30 Archived Mar 31, 2018 -
Oct 1, 2017 Dec 31, 2017 MCL Yes No 54.3 PCI/L 30 ug/L 30 Archived Dec 31, 2017 -
Jul 1, 2017 Sep 30, 2017 MCL Yes No 49.18 PCI/L 30 ug/L 30 Archived Sep 30, 2017 -
Apr 1, 2017 Jun 30, 2017 MCL Yes No 24.78 PCI/L 30 ug/L 20 Archived Jun 30, 2017 -

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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