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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

Infrastructure

Bridge Safety624,000 bridge inspections Aviation Safety30,000+ NTSB aviation events Dam Safety92,600 dam safety records Water Safety433,000+ public water systems Railroad Safety438,000+ rail crossings Pipeline Safety8,800+ pipeline incidents State DashboardsSafety grades for all 50 states ZIP ReportAny 5-digit ZIP across 9 datasets

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HALCYON WATER SYSTEM

California - Community Water System - PWSID: CA4000501

System Information

PWSIDCA4000501
System NameHALCYON WATER SYSTEM
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
CityHALCYON
ZIP Code93420
Address906 S. Halcyon Rd
OrganizationDUNBAR, WILL
Phone805-249-8718

Population & Service

Population Served110
Service Connections46

Drinking Water Violations (48)

This water system has 48 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, 2025 Dec 31, 2025 MR No Yes - 0.05 mg/L - Archived Dec 31, 2025 -
Jul 1, 2025 Sep 30, 2025 MR No Yes - 0.05 mg/L - Archived Sep 30, 2025 -
Jan 1, 2025 Mar 31, 2025 MR No Yes - 0.05 mg/L - Archived Mar 31, 2025 -
Oct 17, 2024 - TT Yes No - - - Unaddressed - -
Oct 17, 2024 - RPT No No - - - Unaddressed - -
Oct 1, 2024 Dec 31, 2024 MR No Yes - 0.05 mg/L - Archived Dec 31, 2024 -
Jul 1, 2024 Sep 30, 2024 MR No Yes - 0.05 mg/L - Archived Sep 30, 2024 -
Apr 1, 2024 Jun 30, 2024 MR No Yes - 0.05 mg/L - Archived Jun 30, 2024 -
Jan 1, 2024 Mar 31, 2024 MR No Yes - 10 mg/L - Resolved Mar 26, 2024 -
Jan 1, 2024 Mar 31, 2024 MR No Yes - 10 mg/L - Resolved Mar 26, 2024 -
Jul 1, 2023 Sep 30, 2023 MR No Yes - 10 mg/L - Archived Sep 30, 2023 -
Apr 1, 2023 Jun 30, 2023 MR No Yes - 10 mg/L - Archived Jun 30, 2023 -
Jan 1, 2023 Mar 31, 2023 MR No No - 10 mg/L - Archived Mar 31, 2023 -
Jan 1, 2023 Dec 31, 2023 MR No Yes - 10 mg/L - Archived Dec 31, 2023 -
Oct 1, 2022 Dec 31, 2022 MR No Yes - 10 mg/L - Archived Dec 31, 2022 -
Oct 1, 2022 Dec 31, 2022 MR No No - 10 mg/L - Archived Dec 31, 2022 -
Jul 1, 2022 Sep 30, 2022 MR No Yes - 10 mg/L - Archived Sep 30, 2022 -
Jan 1, 2022 Mar 31, 2022 MR No No - 10 mg/L - Archived Mar 31, 2022 -
Oct 1, 2021 Dec 31, 2021 MR No Yes - 10 mg/L - Archived Dec 31, 2021 -
Jul 1, 2021 Sep 30, 2021 MR No Yes - 10 mg/L - Archived Sep 30, 2021 -
Jul 1, 2021 Sep 30, 2021 MR No Yes - 10 mg/L - Archived Sep 30, 2021 -
May 25, 2021 Aug 24, 2021 MR No Yes - 10 mg/L - Archived Aug 24, 2021 -
Jan 1, 2021 Dec 31, 2021 MR No Yes - 10 mg/L - Archived Dec 31, 2021 -
Oct 1, 2020 - MR No No - TT - Resolved Jul 22, 2021 -
Oct 1, 2020 - MR No No - TT - Resolved Jul 22, 2021 -
Jul 1, 1993 Dec 31, 2003 MR No No - TT - Resolved Dec 31, 2003 -
Sep 1, 1984 Sep 30, 1984 MCL Yes No - 0.05 mg/L - Archived Sep 30, 1984 -
Aug 1, 1984 Aug 31, 1984 MCL Yes No - 0.05 mg/L - Archived Aug 31, 1984 -
Jul 1, 1984 Jul 31, 1984 MCL Yes No - 0.05 mg/L - Archived Jul 31, 1984 -
Jun 1, 1984 Jun 30, 1984 MCL Yes No - 0.05 mg/L - Archived Jun 30, 1984 -
May 1, 1984 May 31, 1984 MCL Yes No - 0.05 mg/L - Archived May 31, 1984 -
Apr 1, 1984 Apr 30, 1984 MCL Yes No - 0.05 mg/L - Archived Apr 30, 1984 -
Mar 1, 1984 Mar 31, 1984 MCL Yes No - 0.05 mg/L - Archived Mar 31, 1984 -
Jan 1, 1984 Jan 31, 1984 MCL Yes No - 0.05 mg/L - Archived Jan 31, 1984 -
Dec 1, 1983 Dec 31, 1983 MCL Yes No - 0.05 mg/L - Archived Dec 31, 1983 -
Nov 1, 1983 Nov 30, 1983 MCL Yes No - 0.05 mg/L - Archived Nov 30, 1983 -
Oct 1, 1983 Oct 31, 1983 MCL Yes No - 0.05 mg/L - Archived Oct 31, 1983 -
Aug 1, 1983 Aug 31, 1983 MCL Yes No - 0.05 mg/L - Archived Aug 31, 1983 -
Jul 1, 1983 Jul 31, 1983 MCL Yes No - 0.05 mg/L - Archived Jul 31, 1983 -
Mar 1, 1983 Mar 31, 1983 MCL Yes No - 0.05 mg/L - Archived Mar 31, 1983 -
Dec 1, 1982 Dec 31, 1982 MCL Yes No - 0.05 mg/L - Archived Dec 31, 1982 -
Nov 1, 1982 Nov 30, 1982 MCL Yes No - 0.05 mg/L - Archived Nov 30, 1982 -
Oct 1, 1982 Oct 31, 1982 MCL Yes No - 0.05 mg/L - Archived Oct 31, 1982 -
Oct 1, 1981 Sep 30, 1982 MR No Yes - 15 pCi/L - Archived Sep 30, 1982 -
Oct 30, 1980 Oct 29, 1981 MR No Yes - 15 pCi/L - Archived Oct 29, 1981 -
Jun 1, 1979 May 31, 1983 MR No No - 0.05 mg/L - Archived May 31, 1983 -
- - - No No - - - - - -
- - - No No - - - - - -

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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