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California Water Service Co. - Dixon

Published drinking-water records and contacts for California Water Service Co. - Dixon. System CA4810002. Review sources and dates; not a real-time water assessment.

System ID
CA4810002
State or territory
CA
Published population served
10623
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/L2024-05-15DIX 9-01 Chlorinated Effluent / 4810002804
4:2 FTS< 0.003 µg/L0.003 µg/L2024-05-15DIX 7-01 Chlorinated Effluent / 4810002803
6:2 FTS< 0.005 µg/L0.005 µg/L2024-05-15DIX 9-01 Chlorinated Effluent / 4810002804
8:2 FTS< 0.005 µg/L0.005 µg/L2024-05-15DIX 9-01 Chlorinated Effluent / 4810002804
9Cl-PF3ONS< 0.002 µg/L0.002 µg/L2024-05-15DIX 7-01 Chlorinated Effluent / 4810002803
ADONA< 0.003 µg/L0.003 µg/L2024-05-15DIX 7-01 Chlorinated Effluent / 4810002803
HFPO-DA< 0.005 µg/L0.005 µg/L2024-05-15DIX 1-03 Chlorinated Effluent / 4810002801
NEtFOSAA< 0.005 µg/L0.005 µg/L2024-05-15DIX 9-01 Chlorinated Effluent / 4810002804
NFDHA< 0.02 µg/L0.02 µg/L2024-05-15DIX 1-03 Chlorinated Effluent / 4810002801
NMeFOSAA< 0.006 µg/L0.006 µg/L2024-05-15DIX 7-01 Chlorinated Effluent / 4810002803
PFBA< 0.005 µg/L0.005 µg/L2024-05-15DIX 7-01 Chlorinated Effluent / 4810002803
PFBS< 0.003 µg/L0.003 µg/L2024-05-15DIX 9-01 Chlorinated Effluent / 4810002804
PFDA< 0.003 µg/L0.003 µg/L2024-05-15DIX 7-01 Chlorinated Effluent / 4810002803
PFDoA< 0.003 µg/L0.003 µg/L2024-05-15DIX 1-03 Chlorinated Effluent / 4810002801
PFEESA< 0.003 µg/L0.003 µg/L2024-05-15DIX 9-01 Chlorinated Effluent / 4810002804
PFHpA< 0.003 µg/L0.003 µg/L2024-05-15DIX 7-01 Chlorinated Effluent / 4810002803
PFHpS< 0.003 µg/L0.003 µg/L2024-05-15DIX 9-01 Chlorinated Effluent / 4810002804
PFHxA< 0.003 µg/L0.003 µg/L2024-05-15DIX 1-03 Chlorinated Effluent / 4810002801
PFHxS< 0.003 µg/L0.003 µg/L2024-05-15DIX 1-03 Chlorinated Effluent / 4810002801
PFMBA< 0.003 µg/L0.003 µg/L2024-05-15DIX 9-01 Chlorinated Effluent / 4810002804
PFMPA< 0.004 µg/L0.004 µg/L2024-05-15DIX 9-01 Chlorinated Effluent / 4810002804
PFNA< 0.004 µg/L0.004 µg/L2024-05-15DIX 1-03 Chlorinated Effluent / 4810002801
PFOA< 0.004 µg/L0.004 µg/L2024-05-15DIX 9-01 Chlorinated Effluent / 4810002804
PFOS< 0.004 µg/L0.004 µg/L2024-05-15DIX 9-01 Chlorinated Effluent / 4810002804
PFPeA< 0.003 µg/L0.003 µg/L2024-05-15DIX 1-03 Chlorinated Effluent / 4810002801
PFPeS< 0.004 µg/L0.004 µg/L2024-05-15DIX 1-03 Chlorinated Effluent / 4810002801
PFTA< 0.008 µg/L0.008 µg/L2024-05-15DIX 7-01 Chlorinated Effluent / 4810002803
PFTrDA< 0.007 µg/L0.007 µg/L2024-05-15DIX 1-03 Chlorinated Effluent / 4810002801
PFUnA< 0.002 µg/L0.002 µg/L2024-05-15DIX 7-01 Chlorinated Effluent / 4810002803
lithium33 µg/L9 µg/L2024-05-15DIX 9-01 Chlorinated Effluent / 4810002804

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 mg/L2002-01-01 – 2004-12-312026Q3
Twelve most recent imported state laboratory records
SubstancePublished resultSample dateLocation / source
PERFLUOROBUTANE SULFONIC ACID (PFBS)< 2.000000000 NG/L2026-07-04WELL 01-03 / California DDW laboratory results
PERFLUOROHEPTANOIC ACID (PFHPA)< 2.000000000 NG/L2026-07-04WELL 01-03 / California DDW laboratory results
PERFLUOROCTANOIC ACID (PFOA)< 2.000000000 NG/L2026-07-04WELL 01-03 / California DDW laboratory results
PERFLUOROHEXANOIC ACID (PFHXA)< 2.000000000 NG/L2026-07-04WELL 01-03 / California DDW laboratory results
PERFLUOROTETRADECANOIC ACID (PFTA)< 2.000000000 NG/L2026-07-04WELL 01-03 / California DDW laboratory results
PERFLUOROCTANE SULFONIC ACID (PFOS)< 2.000000000 NG/L2026-07-04WELL 01-03 / California DDW laboratory results
11CL-PF3OUDS< 2.000000000 NG/L2026-07-04WELL 01-03 / California DDW laboratory results
9CL-PF3ONS< 2.000000000 NG/L2026-07-04WELL 01-03 / California DDW laboratory results
CHROMIUM, HEX5.5 UG/L2026-07-04WELL 01-03 - TREATED - SBA/IX / California DDW laboratory results
CHROMIUM, HEX26 UG/L2026-07-04WELL 09 / California DDW laboratory results
HFPO-DA< 2.000000000 NG/L2026-07-04WELL 01-03 / California DDW laboratory results
ADONA< 2.000000000 NG/L2026-07-04WELL 01-03 / 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)

James, Sophie: 408-367-8593

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