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City of Vacaville

Published drinking-water records and contacts for City of Vacaville. System CA4810008. Review sources and dates; not a real-time water assessment.

System ID
CA4810008
State or territory
CA
Published population served
99650
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.

Read the provider’s annual water quality report

Report link listed: 2026-10-05. This is not the report’s sampling date.

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/L2025-09-11WTP / 4810008801
4:2 FTS< 0.003 µg/L0.003 µg/L2025-09-11WTP / 4810008801
6:2 FTS< 0.005 µg/L0.005 µg/L2025-09-11WTP / 4810008801
8:2 FTS< 0.005 µg/L0.005 µg/L2025-09-11WTP / 4810008801
9Cl-PF3ONS< 0.002 µg/L0.002 µg/L2025-09-11WTP / 4810008801
ADONA< 0.003 µg/L0.003 µg/L2025-09-11WTP / 4810008801
HFPO-DA< 0.005 µg/L0.005 µg/L2025-09-11WTP / 4810008801
NEtFOSAA< 0.005 µg/L0.005 µg/L2025-09-11WTP / 4810008801
NFDHA< 0.02 µg/L0.02 µg/L2025-09-11WTP / 4810008801
NMeFOSAA< 0.006 µg/L0.006 µg/L2025-09-11WTP / 4810008801
PFBA< 0.005 µg/L0.005 µg/L2025-09-11WTP / 4810008801
PFBS< 0.003 µg/L0.003 µg/L2025-09-11WTP / 4810008801
PFDA< 0.003 µg/L0.003 µg/L2025-09-11WTP / 4810008801
PFDoA< 0.003 µg/L0.003 µg/L2025-09-11WTP / 4810008801
PFEESA< 0.003 µg/L0.003 µg/L2025-09-11WTP / 4810008801
PFHpA< 0.003 µg/L0.003 µg/L2025-09-11WTP / 4810008801
PFHpS< 0.003 µg/L0.003 µg/L2025-09-11WTP / 4810008801
PFHxA< 0.003 µg/L0.003 µg/L2025-09-11WTP / 4810008801
PFHxS< 0.003 µg/L0.003 µg/L2025-09-11WTP / 4810008801
PFMBA< 0.003 µg/L0.003 µg/L2025-09-11WTP / 4810008801
PFMPA< 0.004 µg/L0.004 µg/L2025-09-11WTP / 4810008801
PFNA< 0.004 µg/L0.004 µg/L2025-09-11WTP / 4810008801
PFOA< 0.004 µg/L0.004 µg/L2025-09-11WTP / 4810008801
PFOS< 0.004 µg/L0.004 µg/L2025-09-11WTP / 4810008801
PFPeA< 0.003 µg/L0.003 µg/L2025-09-11WTP / 4810008801
PFPeS< 0.004 µg/L0.004 µg/L2025-09-11WTP / 4810008801
PFTA< 0.008 µg/L0.008 µg/L2025-09-11WTP / 4810008801
PFTrDA< 0.007 µg/L0.007 µg/L2025-09-11WTP / 4810008801
PFUnA< 0.002 µg/L0.002 µg/L2025-09-11WTP / 4810008801
lithium< 9 µg/L9 µg/L2025-09-11WTP / 4810008801

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/L2024-01-01 – 2026-12-312026Q3
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/L2014-01-01 – 2016-12-312026Q3
Lead (PB90) 0.0018 mg/L2009-01-01 – 2011-12-312026Q3
Lead (PB90) 0 mg/L2006-01-01 – 2008-12-312026Q3
Lead (PB90) 0 mg/L2003-01-01 – 2005-12-312026Q3
Twelve most recent imported state laboratory records
SubstancePublished resultSample dateLocation / source
CARBON, TOTAL3.2 MG/L2026-06-16WTP - PUTAH SOUTH CANAL WATER - RAW / California DDW laboratory results
CARBON, TOTAL3.0 MG/L2026-06-16SEASONAL DE WTP / California DDW laboratory results
CARBON, TOTAL3.0 MG/L2026-05-28WTP - PUTAH SOUTH CANAL WATER - RAW / California DDW laboratory results
PERFLUORONONANOIC ACID (PFNA)< 2.000000000 NG/L2026-05-26WELL 15 / California DDW laboratory results
PERFLUORODECANOIC ACID (PFDA)< 2.000000000 NG/L2026-05-26WELL 13 / California DDW laboratory results
PERFLUOROHEPTANOIC ACID (PFHPA)< 2.000000000 NG/L2026-05-26WELL 06 / California DDW laboratory results
PERFLUORODECANOIC ACID (PFDA)< 2.000000000 NG/L2026-05-26WELL 08 / California DDW laboratory results
HFPO-DA< 2.000000000 NG/L2026-05-26WELL 06 / California DDW laboratory results
PERFLUORO PFEESA< 2.000000000 NG/L2026-05-26WELL 06 / California DDW laboratory results
PERFLUOROHEXANE SULFONIC ACID (PFHxS)5.9 NG/L2026-05-26WELL 13 / California DDW laboratory results
PERFLUORO PFMPA< 2.000000000 NG/L2026-05-26WELL 15 / California DDW laboratory results
NETFOSAA< 5.000000000 NG/L2026-05-26WELL 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)

Cole, Justen: 707-469-6404

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