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Hilmar County Water District

Published drinking-water records and contacts for Hilmar County Water District. System CA2410012. Review sources and dates; not a real-time water assessment.

System ID
CA2410012
State or territory
CA
Published population served
5504
System type (source code)
CWS

Published records and dates

Missing records here do not mean the provider did not test. Published records are not a real-time assessment of your tap water.

Published testing results

Selected recent records are shown below. Different sampling locations and dates are not interchangeable. These excerpts are not a complete testing history.

“<” means below the stated reporting limit, not zero. A reported measurement alone is not a safety verdict. Read an example

EPA UCMR 5 — most recent imported sample per substance
SubstancePublished resultReporting limitSample dateSampling location
11Cl-PF3OUdS< 0.005 µg/L0.005 µg/L2025-12-03TID Yard / 2410012012
4:2 FTS< 0.003 µg/L0.003 µg/L2025-12-03TID Yard / 2410012012
6:2 FTS< 0.005 µg/L0.005 µg/L2025-12-03TID Yard / 2410012012
8:2 FTS< 0.005 µg/L0.005 µg/L2025-12-03TID Yard / 2410012012
9Cl-PF3ONS< 0.002 µg/L0.002 µg/L2025-12-03TID Yard / 2410012012
ADONA< 0.003 µg/L0.003 µg/L2025-12-03TID Yard / 2410012012
HFPO-DA< 0.005 µg/L0.005 µg/L2025-12-03TID Yard / 2410012012
NEtFOSAA< 0.005 µg/L0.005 µg/L2025-12-03TID Yard / 2410012012
NFDHA< 0.02 µg/L0.02 µg/L2025-12-03TID Yard / 2410012012
NMeFOSAA< 0.006 µg/L0.006 µg/L2025-12-03TID Yard / 2410012012
PFBA< 0.005 µg/L0.005 µg/L2025-12-03TID Yard / 2410012012
PFBS< 0.003 µg/L0.003 µg/L2025-12-03TID Yard / 2410012012
PFDA< 0.003 µg/L0.003 µg/L2025-12-03TID Yard / 2410012012
PFDoA< 0.003 µg/L0.003 µg/L2025-12-03TID Yard / 2410012012
PFEESA< 0.003 µg/L0.003 µg/L2025-12-03TID Yard / 2410012012
PFHpA< 0.003 µg/L0.003 µg/L2025-12-03TID Yard / 2410012012
PFHpS< 0.003 µg/L0.003 µg/L2025-12-03TID Yard / 2410012012
PFHxA< 0.003 µg/L0.003 µg/L2025-12-03TID Yard / 2410012012
PFHxS< 0.003 µg/L0.003 µg/L2025-12-03TID Yard / 2410012012
PFMBA< 0.003 µg/L0.003 µg/L2025-12-03TID Yard / 2410012012
PFMPA< 0.004 µg/L0.004 µg/L2025-12-03TID Yard / 2410012012
PFNA< 0.004 µg/L0.004 µg/L2025-12-03TID Yard / 2410012012
PFOA< 0.004 µg/L0.004 µg/L2025-12-03TID Yard / 2410012012
PFOS< 0.004 µg/L0.004 µg/L2025-12-03TID Yard / 2410012012
PFPeA< 0.003 µg/L0.003 µg/L2025-12-03TID Yard / 2410012012
PFPeS< 0.004 µg/L0.004 µg/L2025-12-03TID Yard / 2410012012
PFTA< 0.008 µg/L0.008 µg/L2025-12-03TID Yard / 2410012012
PFTrDA< 0.007 µg/L0.007 µg/L2025-12-03TID Yard / 2410012012
PFUnA< 0.002 µg/L0.002 µg/L2025-12-03TID Yard / 2410012012
lithium< 9 µg/L9 µg/L2025-12-03TID Yard / 2410012012

Download all EPA UCMR 5 records (CSV)

Lead and copper: 90th-percentile summaries

These describe a monitoring period across sampled locations, not the result at your home. How to read the 90th percentile

Eight most recent imported monitoring summaries
SubstancePublished 90th percentileMonitoring periodSource quarter
Lead (PB90) 0 mg/L2023-01-01 – 2025-12-312026Q3
Lead (PB90) 0 mg/L2020-01-01 – 2022-12-312026Q3
Lead (PB90) 0 mg/L2017-01-01 – 2019-12-312026Q3
Lead (PB90) 0.0023 mg/L2014-01-01 – 2016-12-312026Q3
Lead (PB90) 0 mg/L2011-01-01 – 2013-12-312026Q3
Lead (PB90) 0 mg/L2008-01-01 – 2010-12-312026Q3
Lead (PB90) 0.002 mg/L2005-01-01 – 2007-12-312026Q3
Lead (PB90) 0.004 mg/L2004-01-01 – 2004-12-312026Q3
Twelve most recent imported state laboratory records
SubstancePublished resultSample dateLocation / source
NITRATE0.5 MG/L2026-07-14WELL 08 (MARK) RAW / California DDW laboratory results
NITRATE-NITRITE0.5 MG/L2026-07-14WELL 08 (MARK) RAW / California DDW laboratory results
NITRATE0.5 MG/L2026-07-14BLEND NEAR WELL FIELD BEFORE DIST SYSTEM / California DDW laboratory results
NITRITE< 0.100000000 MG/L2026-07-14WELL 07 (WOODY) RAW / California DDW laboratory results
NITRITE< 0.100000000 MG/L2026-07-14WELL 08 (MARK) RAW / California DDW laboratory results
NITRATE-NITRITE22.0 MG/L2026-07-14WELL 07 (WOODY) RAW / California DDW laboratory results
NITRITE< 0.100000000 MG/L2026-07-14BLEND NEAR WELL FIELD BEFORE DIST SYSTEM / California DDW laboratory results
NITRATE22 MG/L2026-07-14WELL 07 (WOODY) RAW / California DDW laboratory results
NITRATE-NITRITE0.5 MG/L2026-07-14BLEND NEAR WELL FIELD BEFORE DIST SYSTEM / California DDW laboratory results
NITRATE-NITRITE< 0.300000000 MG/L2026-07-07BLEND NEAR WELL FIELD BEFORE DIST SYSTEM / California DDW laboratory results
NITRATE< 0.200000000 MG/L2026-07-07BLEND NEAR WELL FIELD BEFORE DIST SYSTEM / California DDW laboratory results
NITRITE< 0.100000000 MG/L2026-07-07WELL 06 (JAKE) - RAW / California DDW laboratory results

State sampling points can include untreated water. Publisher qualifiers and units are retained; consult the full source notes before interpreting a record.

Download state records with source notes (CSV)

Published compliance history

18 imported records. Status is as recorded in the source; historical records are not current advisories. Missing records do not establish that no violations occurred.

Twenty most recent imported compliance records
Rule / recordPeriodRecorded statusHealth-based (EPA classification)Source quarter
Nitrate Rule / Maximum Contaminant Level Violation, Single Sample2025-11-01 – 2025-11-30ArchivedYes2026Q3
Nitrate Rule / Maximum Contaminant Level Violation, Single Sample2025-10-01 – 2025-10-31ArchivedYes2026Q3
Nitrate Rule / Maximum Contaminant Level Violation, Single Sample2025-07-01 – 2025-07-31ArchivedYes2026Q3
Nitrate Rule / Maximum Contaminant Level Violation, Single Sample2025-03-01 – 2025-03-31ArchivedYes2026Q3
Nitrate Rule / Maximum Contaminant Level Violation, Single Sample2025-02-01 – 2025-02-28ArchivedYes2026Q3
Nitrate Rule / Maximum Contaminant Level Violation, Single Sample2025-01-01 – 2025-01-31ArchivedYes2026Q3
Nitrate Rule / Maximum Contaminant Level Violation, Single Sample2024-12-01 – 2024-12-31ArchivedYes2026Q3
Nitrate Rule / Maximum Contaminant Level Violation, Single Sample2024-07-01 – 2024-07-31ArchivedYes2026Q3
Nitrate Rule / Maximum Contaminant Level Violation, Single Sample2024-05-01 – 2024-05-31ArchivedYes2026Q3
Nitrate Rule / Maximum Contaminant Level Violation, Single Sample2024-04-01 – 2024-04-30ArchivedYes2026Q3
Nitrate Rule / Maximum Contaminant Level Violation, Single Sample2024-03-01 – 2024-03-31ArchivedYes2026Q3
Nitrate Rule / Maximum Contaminant Level Violation, Single Sample2024-02-01 – 2024-02-29ArchivedYes2026Q3
Nitrate Rule / Maximum Contaminant Level Violation, Single Sample2024-01-01 – 2024-01-31ArchivedYes2026Q3
Nitrate Rule / Maximum Contaminant Level Violation, Single Sample2023-01-01 – 2023-12-31ArchivedYes2026Q3
Nitrate Rule / Monitoring, Regular2019-01-01 – 2019-03-31ResolvedNo2026Q3
Nitrate Rule / Maximum Contaminant Level Violation, Single Sample1983-07-01 – 1983-07-31ArchivedYes2026Q3
Nitrate Rule / Maximum Contaminant Level Violation, Single Sample1982-08-01 – 1982-09-30ArchivedYes2026Q3
Nitrate Rule / Maximum Contaminant Level Violation, Single Sample1981-01-01 – 1981-01-31ArchivedYes2026Q3

Source dates and refresh checks

A refresh check is not a sample date. Publication periods, sample dates and checks are shown separately.

Administrative contact (EPA filing)

Jorritsma, Curtis: 209-632-3522

An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.

Official state resources · How to read these records