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Pomona - City, Water Dept.

Published drinking-water records and contacts for Pomona - City, Water Dept.. System CA1910126. Review sources and dates; not a real-time water assessment.

System ID
CA1910126
State or territory
CA
Published population served
151713
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/L2024-05-15Reservoir 5 / 1910126033
4:2 FTS< 0.003 µg/L0.003 µg/L2024-05-15Reservoir 8 / 1910126061
6:2 FTS< 0.005 µg/L0.005 µg/L2024-05-15Reservoir 5 / 1910126033
8:2 FTS< 0.005 µg/L0.005 µg/L2024-05-15Reservoir 5 / 1910126033
9Cl-PF3ONS< 0.002 µg/L0.002 µg/L2024-05-15R02 Nitrate Blending Facility / 1910126801
ADONA< 0.003 µg/L0.003 µg/L2024-05-15Reservoir 8 / 1910126061
HFPO-DA< 0.005 µg/L0.005 µg/L2024-05-15Reservoir 8 / 1910126061
NEtFOSAA< 0.005 µg/L0.005 µg/L2024-05-15Reservoir 10- Distribution Water / 1910126710
NFDHA< 0.02 µg/L0.02 µg/L2024-05-15Reservoir 10- Distribution Water / 1910126710
NMeFOSAA< 0.006 µg/L0.006 µg/L2024-05-15R02 Nitrate Blending Facility / 1910126801
PFBA< 0.005 µg/L0.005 µg/L2024-05-15Reservoir 5 / 1910126033
PFBS< 0.003 µg/L0.003 µg/L2024-05-15R02 Nitrate Blending Facility / 1910126801
PFDA< 0.003 µg/L0.003 µg/L2024-05-15Reservoir 8 / 1910126061
PFDoA< 0.003 µg/L0.003 µg/L2024-05-15Reservoir 9 / 1910126063
PFEESA< 0.003 µg/L0.003 µg/L2024-05-15Reservoir 8 / 1910126061
PFHpA< 0.003 µg/L0.003 µg/L2024-05-15R02 Nitrate Blending Facility / 1910126801
PFHpS< 0.003 µg/L0.003 µg/L2024-05-15Reservoir 5 / 1910126033
PFHxA< 0.003 µg/L0.003 µg/L2024-05-15R02 Nitrate Blending Facility / 1910126801
PFHxS< 0.003 µg/L0.003 µg/L2024-05-15Reservoir 10- Distribution Water / 1910126710
PFMBA< 0.003 µg/L0.003 µg/L2024-05-15Reservoir 8 / 1910126061
PFMPA< 0.004 µg/L0.004 µg/L2024-05-15Reservoir 9 / 1910126063
PFNA< 0.004 µg/L0.004 µg/L2024-05-15Reservoir 8 / 1910126061
PFOA< 0.004 µg/L0.004 µg/L2024-05-15Reservoir 10- Distribution Water / 1910126710
PFOS< 0.004 µg/L0.004 µg/L2024-05-15R02 Nitrate Blending Facility / 1910126801
PFPeA< 0.003 µg/L0.003 µg/L2024-05-15Reservoir 9 / 1910126063
PFPeS< 0.004 µg/L0.004 µg/L2024-05-15R02 Nitrate Blending Facility / 1910126801
PFTA< 0.008 µg/L0.008 µg/L2024-05-15Reservoir 8 / 1910126061
PFTrDA< 0.007 µg/L0.007 µg/L2024-05-15Reservoir 10- Distribution Water / 1910126710
PFUnA< 0.002 µg/L0.002 µg/L2024-05-15R02 Nitrate Blending Facility / 1910126801
lithium< 9 µg/L9 µg/L2024-05-15Reservoir 5 / 1910126033

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) 0.0021 mg/L2023-01-01 – 2025-12-312026Q3
Lead (PB90) 0 mg/L2020-01-01 – 2022-12-312026Q3
Lead (PB90) 0.0041 mg/L2017-01-01 – 2019-12-312026Q3
Lead (PB90) 0.0045 mg/L2014-01-01 – 2016-12-312026Q3
Lead (PB90) 0.003 mg/L2011-01-01 – 2013-12-312026Q3
Lead (PB90) 0.004 mg/L2008-01-01 – 2010-12-312026Q3
Lead (PB90) 0.009 mg/L2005-01-01 – 2007-12-312026Q3
Lead (PB90) 0.006 mg/L2005-01-01 – 2007-12-312026Q3
Twelve most recent imported state laboratory records
SubstancePublished resultSample dateLocation / source
1,1,1-TRICHLOROETHANE< 0.500000000 UG/L2026-07-07RESERVOIR 6 EFFLUENT AT BOOSTER 3 / California DDW laboratory results
NITRATE-NITRITE5.7 MG/L2026-07-07RESERVOIR 6 EFFLUENT AT BOOSTER 3 / California DDW laboratory results
PERCHLORATE1.3 UG/L2026-07-07ANION EXCHANGE PLANT 1&2 - TREATED / California DDW laboratory results
NITRATE-NITRITE0.47 MG/L2026-07-07ANION EXCHANGE PLANT 1&2 - TREATED / California DDW laboratory results
TETRACHLOROETHYLENE1.1 UG/L2026-07-07RESERVOIR 5 EFFLUENT @ BOOSTER 2 / California DDW laboratory results
NITRITE< 0.100000000 MG/L2026-07-07RESERVOIR 6 EFFLUENT AT BOOSTER 3 / California DDW laboratory results
NITRATE-NITRITE4.1 MG/L2026-07-07ANION EXCHANGE PLANT 3 - BLEND / California DDW laboratory results
1,1-DICHLOROETHYLENE< 0.500000000 UG/L2026-07-07WELL 6 - GAC TREATMENT PLANT / California DDW laboratory results
NITRATE-NITRITE8.5 MG/L2026-07-07ANION EXCHANGE PLANT - RAW / California DDW laboratory results
PERCHLORATE2.7 UG/L2026-07-07WELL 37 IX EFFLUENT / California DDW laboratory results
PERCHLORATE< 0.500000000 UG/L2026-07-07ANION EXCHANGE PLANT 3 EFFLUENT / California DDW laboratory results
NITRATE4.1 MG/L2026-07-07ANION EXCHANGE PLANT 3 - BLEND / 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)

Capogni, Nick: 909-620-2248

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