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PublicWater Watch

City of Merced

Published drinking-water records and contacts for City of Merced. System CA2410009. Review sources and dates; not a real-time water assessment.

System ID
CA2410009
State or territory
CA
Published population served
93692
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/L2024-09-19Well Site 20 / 2410009825
4:2 FTS< 0.003 µg/L0.003 µg/L2024-09-19Well Site 20 / 2410009825
6:2 FTS< 0.005 µg/L0.005 µg/L2024-09-19Well Site 20 / 2410009825
8:2 FTS< 0.005 µg/L0.005 µg/L2024-09-19Well Site 20 / 2410009825
9Cl-PF3ONS< 0.002 µg/L0.002 µg/L2024-09-19Well Site 20 / 2410009825
ADONA< 0.003 µg/L0.003 µg/L2024-09-19Well Site 20 / 2410009825
HFPO-DA< 0.005 µg/L0.005 µg/L2024-09-19Well Site 20 / 2410009825
NEtFOSAA< 0.005 µg/L0.005 µg/L2024-09-19Well Site 20 / 2410009825
NFDHA< 0.02 µg/L0.02 µg/L2024-09-19Well Site 20 / 2410009825
NMeFOSAA< 0.006 µg/L0.006 µg/L2024-09-19Well Site 20 / 2410009825
PFBA< 0.005 µg/L0.005 µg/L2024-09-19Well Site 20 / 2410009825
PFBS< 0.003 µg/L0.003 µg/L2024-09-19Well Site 20 / 2410009825
PFDA< 0.003 µg/L0.003 µg/L2024-09-19Well Site 20 / 2410009825
PFDoA< 0.003 µg/L0.003 µg/L2024-09-19Well Site 20 / 2410009825
PFEESA< 0.003 µg/L0.003 µg/L2024-09-19Well Site 20 / 2410009825
PFHpA< 0.003 µg/L0.003 µg/L2024-09-19Well Site 20 / 2410009825
PFHpS< 0.003 µg/L0.003 µg/L2024-09-19Well Site 20 / 2410009825
PFHxA< 0.003 µg/L0.003 µg/L2024-09-19Well Site 20 / 2410009825
PFHxS< 0.003 µg/L0.003 µg/L2024-09-19Well Site 20 / 2410009825
PFMBA< 0.003 µg/L0.003 µg/L2024-09-19Well Site 20 / 2410009825
PFMPA< 0.004 µg/L0.004 µg/L2024-09-19Well Site 20 / 2410009825
PFNA< 0.004 µg/L0.004 µg/L2024-09-19Well Site 20 / 2410009825
PFOA< 0.004 µg/L0.004 µg/L2024-09-19Well Site 20 / 2410009825
PFOS< 0.004 µg/L0.004 µg/L2024-09-19Well Site 20 / 2410009825
PFPeA< 0.003 µg/L0.003 µg/L2024-09-19Well Site 20 / 2410009825
PFPeS< 0.004 µg/L0.004 µg/L2024-09-19Well Site 20 / 2410009825
PFTA< 0.008 µg/L0.008 µg/L2024-09-19Well Site 20 / 2410009825
PFTrDA< 0.007 µg/L0.007 µg/L2024-09-19Well Site 20 / 2410009825
PFUnA< 0.002 µg/L0.002 µg/L2024-09-19Well Site 20 / 2410009825
lithium< 9 µg/L9 µg/L2024-09-19Well Site 20 / 2410009825

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/L2022-01-01 – 2024-12-312026Q3
Lead (PB90) 0 mg/L2019-01-01 – 2021-12-312026Q3
Lead (PB90) 0 mg/L2016-01-01 – 2018-12-312026Q3
Lead (PB90) 0 mg/L2013-01-01 – 2015-12-312026Q3
Lead (PB90) 0 mg/L2010-01-01 – 2012-12-312026Q3
Lead (PB90) 0.0025 mg/L2007-01-01 – 2009-12-312026Q3
Lead (PB90) 0.0025 mg/L2006-01-01 – 2006-12-312026Q3
Lead (PB90) 0.0025 mg/L2004-01-01 – 2006-12-312026Q3
Twelve most recent imported state laboratory records
SubstancePublished resultSample dateLocation / source
NITRATE-NITRITE4.6 MG/L2026-07-09WELL 02B - RAW / California DDW laboratory results
NITRITE< 0.050000000 MG/L2026-07-09WELL 02B - RAW / California DDW laboratory results
NITRATE1.5 MG/L2026-07-09WELL 03C - PCE GAC TRT / California DDW laboratory results
NITRATE4.3 MG/L2026-07-09WELL 02A - RAW / California DDW laboratory results
NITRATE-NITRITE1.5 MG/L2026-07-09WELL 03C - PCE GAC TRT / California DDW laboratory results
NITRITE< 0.050000000 MG/L2026-07-09WELL 03C - PCE GAC TRT / California DDW laboratory results
NITRATE4.6 MG/L2026-07-09WELL 02B - RAW / California DDW laboratory results
NITRATE-NITRITE4.3 MG/L2026-07-09WELL 02A - RAW / California DDW laboratory results
NITRITE< 0.050000000 MG/L2026-07-09WELL 02A - RAW / California DDW laboratory results
TRICHLOROTRIFLUOROETHANE< 2.000000000 UG/L2026-06-02WELL 03C - PCE GAC TRT / California DDW laboratory results
1,2,4-TRICHLOROBENZENE< 0.500000000 UG/L2026-06-02WELL 03C - PCE GAC TRT / California DDW laboratory results
TOLUENE< 0.500000000 UG/L2026-06-02WELL 03C - PCE GAC TRT / 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

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

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)

Elwin, Ken: 209-385-6800

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