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WILLOW PARK MARINA

California - Community Water System - PWSID: CA0707507

System Information

PWSIDCA0707507
System NameWILLOW PARK MARINA
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedFeb 19, 2000
Last ReportedMar 20, 2026

Location & Contact

StateCalifornia
CityOAKLEY
ZIP Code94561
AddressP. O. Box 127
OrganizationMUELRATH, DAN
Phone925-625-3798

Population & Service

Population Served380
Service Connections166

Drinking Water Violations (20)

This water system has 20 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 MCL Yes No .011 MG/L 0.010 mg/L .01 Archived Dec 31, 2025 -
Jul 1, 2025 Sep 30, 2025 MCL Yes No .011 MG/L 0.010 mg/L .01 Archived Sep 30, 2025 -
Apr 1, 2025 Jun 30, 2025 MCL Yes No .011 MG/L 0.010 mg/L .01 Archived Jun 30, 2025 -
Jan 1, 2025 Mar 31, 2025 MCL Yes No .011 MG/L 0.010 mg/L .01 Archived Mar 31, 2025 -
Oct 1, 2024 Dec 31, 2024 MCL Yes No .011 MG/L 0.010 mg/L .01 Archived Dec 31, 2024 -
Jul 1, 2024 Sep 30, 2024 MCL Yes No .011 MG/L 0.010 mg/L .01 Archived Sep 30, 2024 -
Apr 1, 2024 Jun 30, 2024 MCL Yes No .011 MG/L 0.010 mg/L .01 Archived Jun 30, 2024 -
Jan 1, 2024 Mar 31, 2024 MCL Yes No .011 MG/L 0.010 mg/L .01 Archived Mar 31, 2024 -
Oct 1, 2023 Dec 31, 2023 MCL Yes No .011 MG/L 0.010 mg/L .01 Archived Dec 31, 2023 -
Jul 1, 2023 Sep 30, 2023 MCL Yes No .011 MG/L 0.010 mg/L .01 Archived Sep 30, 2023 -
Apr 1, 2023 Jun 30, 2023 MCL Yes No .011 MG/L 0.010 mg/L .01 Archived Jun 30, 2023 -
Jan 1, 2023 Mar 31, 2023 MCL Yes No .011 MG/L 0.010 mg/L .01 Archived Mar 31, 2023 -
Oct 1, 2022 Dec 31, 2022 MCL Yes No .011 MG/L 0.010 mg/L .01 Archived Dec 31, 2022 -
Jul 1, 2022 Sep 30, 2022 MCL Yes No .011 MG/L 0.010 mg/L .01 Archived Sep 30, 2022 -
Apr 1, 2022 Jun 30, 2022 MCL Yes No .011 MG/L 0.010 mg/L .01 Archived Jun 30, 2022 -
Jan 1, 2022 Mar 31, 2022 MCL Yes No .011 MG/L 0.010 mg/L .01 Archived Mar 31, 2022 -
Oct 1, 2021 Dec 31, 2021 MCL Yes No .011 MG/L 0.010 mg/L .01 Archived Dec 31, 2021 -
Jul 1, 2021 Sep 30, 2021 MCL Yes No .011 MG/L 0.010 mg/L .01 Archived Sep 30, 2021 -
Apr 1, 2021 Jun 30, 2021 MCL Yes No .012 MG/L 0.010 mg/L .01 Archived Jun 30, 2021 -
Jan 1, 2021 Mar 31, 2021 MCL Yes No .012 MG/L 0.010 mg/L - Archived Mar 31, 2021 -

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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