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Downey - City, Water Dept.

Published drinking-water records and contacts for Downey - City, Water Dept.. System CA1910034. Review sources and dates; not a real-time water assessment.

System ID
CA1910034
State or territory
CA
Published population served
110556
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/L2025-07-01Well 23 / 1910034024
4:2 FTS< 0.003 µg/L0.003 µg/L2025-07-01Well 11 / 1910034033
6:2 FTS< 0.005 µg/L0.005 µg/L2025-07-01Well 17 / 1910034019
8:2 FTS< 0.005 µg/L0.005 µg/L2025-07-01Well 24 / 1910034025
9Cl-PF3ONS< 0.002 µg/L0.002 µg/L2025-07-01Well 23 / 1910034024
ADONA< 0.003 µg/L0.003 µg/L2025-07-01Well 5 / 1910034007
HFPO-DA< 0.005 µg/L0.005 µg/L2025-07-01Well 17 / 1910034019
NEtFOSAA< 0.005 µg/L0.005 µg/L2025-07-01Well 17 / 1910034019
NFDHA< 0.02 µg/L0.02 µg/L2025-07-01Well 17 / 1910034019
NMeFOSAA< 0.006 µg/L0.006 µg/L2025-07-01Well 17 / 1910034019
PFBA0.0062 µg/L0.005 µg/L2025-07-01Well 17 / 1910034019
PFBS0.0079 µg/L0.003 µg/L2025-07-01Well 24 / 1910034025
PFDA< 0.003 µg/L0.003 µg/L2025-07-01Well 5 / 1910034007
PFDoA< 0.003 µg/L0.003 µg/L2025-07-01Well 17 / 1910034019
PFEESA< 0.003 µg/L0.003 µg/L2025-07-01Well 11 / 1910034033
PFHpA< 0.003 µg/L0.003 µg/L2025-07-01Well 23 / 1910034024
PFHpS< 0.003 µg/L0.003 µg/L2025-07-01Well 23 / 1910034024
PFHxA0.0048 µg/L0.003 µg/L2025-07-01Well 11 / 1910034033
PFHxS0.0058 µg/L0.003 µg/L2025-07-01Well 11 / 1910034033
PFMBA< 0.003 µg/L0.003 µg/L2025-07-01Well 24 / 1910034025
PFMPA< 0.004 µg/L0.004 µg/L2025-07-01Well 5 / 1910034007
PFNA< 0.004 µg/L0.004 µg/L2025-07-01Well 17 / 1910034019
PFOA0.013 µg/L0.004 µg/L2025-07-01Well 17 / 1910034019
PFOS0.019 µg/L0.004 µg/L2025-07-01Well 17 / 1910034019
PFPeA0.019 µg/L0.003 µg/L2025-07-01Well 17 / 1910034019
PFPeS< 0.004 µg/L0.004 µg/L2025-07-01Well 17 / 1910034019
PFTA< 0.008 µg/L0.008 µg/L2025-07-01Well 11 / 1910034033
PFTrDA< 0.007 µg/L0.007 µg/L2025-07-01Well 23 / 1910034024
PFUnA< 0.002 µg/L0.002 µg/L2025-07-01Well 23 / 1910034024
lithium< 9 µg/L9 µg/L2025-07-01Well 11 / 1910034033

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/L2021-01-01 – 2023-12-312026Q3
Lead (PB90) 0 mg/L2018-01-01 – 2020-12-312026Q3
Lead (PB90) 0 mg/L2015-01-01 – 2017-12-312026Q3
Lead (PB90) 0 mg/L2012-01-01 – 2014-12-312026Q3
Lead (PB90) 0.006 mg/L2011-01-01 – 2011-12-312026Q3
Lead (PB90) 0.007 mg/L2006-01-01 – 2008-12-312026Q3
Lead (PB90) 0.0064 mg/L2005-01-01 – 2005-12-312026Q3
Lead (PB90) 0.006 mg/L2003-01-01 – 2005-12-312026Q3
Twelve most recent imported state laboratory records
SubstancePublished resultSample dateLocation / source
1,2,3-TRICHLOROPROPANE< 0.005000000 UG/L2026-06-10WELL 10 (OLD PWC WELL 42C) / California DDW laboratory results
DI(2-ETHYLHEXYL) PHTHALATE< 3.000000000 UG/L2026-06-10WELL 07 (OLD WELL 302) / California DDW laboratory results
TRANS-1,2-DICHLOROETHYLENE< 0.500000000 UG/L2026-06-10WELL 12 (OLD PWC WELL 42B) / California DDW laboratory results
P-CHLOROTOLUENE< 0.500000000 UG/L2026-06-10WELL 16 (OLD WELL 10) / California DDW laboratory results
1,2,3-TRICHLOROPROPANE< 0.005000000 UG/L2026-06-10WELL 04 / California DDW laboratory results
PERCHLORATE< 1.000000000 UG/L2026-06-10WELL 11 / California DDW laboratory results
O-DICHLOROBENZENE< 0.500000000 UG/L2026-06-10WELL 16 (OLD WELL 10) / California DDW laboratory results
TRICHLOROFLUOROMETHANE< 5.000000000 UG/L2026-06-10WELL 16 (OLD WELL 10) / California DDW laboratory results
DICHLOROMETHANE< 0.500000000 UG/L2026-06-10WELL 12 (OLD PWC WELL 42B) / California DDW laboratory results
COMBINED URANIUM2.4 PCI/L2026-06-10WELL 24 (OLD PWC WELL 08B) / California DDW laboratory results
ISOPROPYLBENZENE< 0.500000000 UG/L2026-06-10WELL 12 (OLD PWC WELL 42B) / California DDW laboratory results
DIBROMOCHLOROMETHANE< 1.000000000 UG/L2026-06-10WELL 12 (OLD PWC WELL 42B) / 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

1 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
Revised Total Coliform Rule / Treatment Technique, Level 2 Assessment (RTCR)2018-02-01 – —ResolvedYes2026Q3

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)

Mueller, Dan: 562-904-7110

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