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San Gabriel County Wd

Published drinking-water records and contacts for San Gabriel County Wd. System CA1910144. Review sources and dates; not a real-time water assessment.

System ID
CA1910144
State or territory
CA
Published population served
39345
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/L2024-01-10Well 9 / 1910144804
4:2 FTS< 0.003 µg/L0.003 µg/L2024-01-10Well 16 / 1910144806
6:2 FTS< 0.005 µg/L0.005 µg/L2024-01-10Well 9 / 1910144804
8:2 FTS< 0.005 µg/L0.005 µg/L2024-01-10Well 15 / 1910144805
9Cl-PF3ONS< 0.002 µg/L0.002 µg/L2024-01-10Well 15 / 1910144805
ADONA< 0.003 µg/L0.003 µg/L2024-01-10Well 14 / 1910144801
HFPO-DA< 0.005 µg/L0.005 µg/L2024-01-10Well 15 / 1910144805
NEtFOSAA< 0.005 µg/L0.005 µg/L2024-01-10Well 16 / 1910144806
NFDHA< 0.02 µg/L0.02 µg/L2024-01-10Well 14 / 1910144801
NMeFOSAA< 0.006 µg/L0.006 µg/L2024-01-10Well 15 / 1910144805
PFBA< 0.005 µg/L0.005 µg/L2024-01-10Well 14 / 1910144801
PFBS< 0.003 µg/L0.003 µg/L2024-01-10Well 15 / 1910144805
PFDA< 0.003 µg/L0.003 µg/L2024-01-10Well 9 / 1910144804
PFDoA< 0.003 µg/L0.003 µg/L2024-01-10Well 9 / 1910144804
PFEESA< 0.003 µg/L0.003 µg/L2024-01-10Well 14 / 1910144801
PFHpA< 0.003 µg/L0.003 µg/L2024-01-10Well 16 / 1910144806
PFHpS< 0.003 µg/L0.003 µg/L2024-01-10Well 14 / 1910144801
PFHxA< 0.003 µg/L0.003 µg/L2024-01-10Well 16 / 1910144806
PFHxS< 0.003 µg/L0.003 µg/L2024-01-10Well 16 / 1910144806
PFMBA< 0.003 µg/L0.003 µg/L2024-01-10Well 9 / 1910144804
PFMPA< 0.004 µg/L0.004 µg/L2024-01-10Well 9 / 1910144804
PFNA< 0.004 µg/L0.004 µg/L2024-01-10Well 16 / 1910144806
PFOA< 0.004 µg/L0.004 µg/L2024-01-10Well 15 / 1910144805
PFOS< 0.004 µg/L0.004 µg/L2024-01-10Well 14 / 1910144801
PFPeA< 0.003 µg/L0.003 µg/L2024-01-10Well 16 / 1910144806
PFPeS< 0.004 µg/L0.004 µg/L2024-01-10Well 14 / 1910144801
PFTA< 0.008 µg/L0.008 µg/L2024-01-10Well 9 / 1910144804
PFTrDA< 0.007 µg/L0.007 µg/L2024-01-10Well 9 / 1910144804
PFUnA< 0.002 µg/L0.002 µg/L2024-01-10Well 9 / 1910144804
lithium< 9 µg/L9 µg/L2024-01-10Well 9 / 1910144804

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 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 mg/L2005-01-01 – 2007-12-312026Q3
Lead (PB90) 0.005 mg/L2004-01-01 – 2004-12-312026Q3
Twelve most recent imported state laboratory records
SubstancePublished resultSample dateLocation / source
1,2,3-TRICHLOROPROPANE< 0.005000000 UG/L2026-06-29WELL 11 & 12 BLEND POINT / California DDW laboratory results
NITRATE4.0 MG/L2026-06-29WELL 16 - ACTIVE / California DDW laboratory results
NITRATE1.3 MG/L2026-06-29WELL 11 & 12 BLEND POINT / California DDW laboratory results
NITRATE5.5 MG/L2026-06-29WELL 09 - ACTIVE / California DDW laboratory results
NITRATE6.9 MG/L2026-06-29WELL 15 - ACTIVE / California DDW laboratory results
FLUORIDE1.3 MG/L2026-06-29WELL 16 - ACTIVE / California DDW laboratory results
ARSENIC7.7 UG/L2026-06-29WELL 11 & 12 BLEND POINT / California DDW laboratory results
TURBIDITY0.11 NTU2026-06-25WELL 12 - ACTIVE / California DDW laboratory results
IRON< 100.000000000 UG/L2026-06-25WELL 15 - ACTIVE / California DDW laboratory results
HARDNESS, TOTAL (AS CACO3)140 MG/L2026-06-25WELL 09 - ACTIVE / California DDW laboratory results
COLOR< 3.000000000 UNITS2026-06-25WELL 09 - ACTIVE / California DDW laboratory results
CONDUCTIVITY @ 25 C UMHOS/CM450 UMHO/CM2026-06-25WELL 09 - ACTIVE / 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)

Prior, James (JIM): 626-287-0341

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