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Denair Community Services District

Published drinking-water records and contacts for Denair Community Services District. System CA5010021. Review sources and dates; not a real-time water assessment.

System ID
CA5010021
State or territory
CA
Published population served
5090
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/L2025-08-25Well #10 / PW1001
4:2 FTS< 0.003 µg/L0.003 µg/L2025-08-25Well #10 / PW1001
6:2 FTS< 0.005 µg/L0.005 µg/L2025-08-25Well #10 / PW1001
8:2 FTS< 0.005 µg/L0.005 µg/L2025-08-25Well #10 / PW1001
9Cl-PF3ONS< 0.002 µg/L0.002 µg/L2025-08-25Well #10 / PW1001
ADONA< 0.003 µg/L0.003 µg/L2025-08-25Well #10 / PW1001
HFPO-DA< 0.005 µg/L0.005 µg/L2025-08-25Well #10 / PW1001
NEtFOSAA< 0.005 µg/L0.005 µg/L2025-08-25Well #10 / PW1001
NFDHA< 0.02 µg/L0.02 µg/L2025-08-25Well #10 / PW1001
NMeFOSAA< 0.006 µg/L0.006 µg/L2025-08-25Well #10 / PW1001
PFBA< 0.005 µg/L0.005 µg/L2025-08-25Well #10 / PW1001
PFBS< 0.003 µg/L0.003 µg/L2025-08-25Well #10 / PW1001
PFDA< 0.003 µg/L0.003 µg/L2025-08-25Well #10 / PW1001
PFDoA< 0.003 µg/L0.003 µg/L2025-08-25Well #10 / PW1001
PFEESA< 0.003 µg/L0.003 µg/L2025-08-25Well #10 / PW1001
PFHpA< 0.003 µg/L0.003 µg/L2025-08-25Well #10 / PW1001
PFHpS< 0.003 µg/L0.003 µg/L2025-08-25Well #10 / PW1001
PFHxA< 0.003 µg/L0.003 µg/L2025-08-25Well #10 / PW1001
PFHxS< 0.003 µg/L0.003 µg/L2025-08-25Well #10 / PW1001
PFMBA< 0.003 µg/L0.003 µg/L2025-08-25Well #10 / PW1001
PFMPA< 0.004 µg/L0.004 µg/L2025-08-25Well #10 / PW1001
PFNA< 0.004 µg/L0.004 µg/L2025-08-25Well #10 / PW1001
PFOA< 0.004 µg/L0.004 µg/L2025-08-25Well #10 / PW1001
PFOS< 0.004 µg/L0.004 µg/L2025-08-25Well #10 / PW1001
PFPeA< 0.003 µg/L0.003 µg/L2025-08-25Well #10 / PW1001
PFPeS< 0.004 µg/L0.004 µg/L2025-08-25Well #10 / PW1001
PFTA< 0.008 µg/L0.008 µg/L2025-08-25Well #10 / PW1001
PFTrDA< 0.007 µg/L0.007 µg/L2025-08-25Well #10 / PW1001
PFUnA< 0.002 µg/L0.002 µg/L2025-08-25Well #10 / PW1001
lithium< 9 µg/L9 µg/L2025-08-25Well #10 / PW1001

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/L2022-01-01 – 2024-12-312026Q3
Lead (PB90) 0 mg/L2019-01-01 – 2021-12-312026Q3
Lead (PB90) 0 mg/L2016-01-01 – 2018-12-312026Q3
Lead (PB90) 0 mg/L2013-01-01 – 2015-12-312026Q3
Lead (PB90) 0.01 mg/L2010-01-01 – 2012-12-312026Q3
Lead (PB90) 0 mg/L2009-01-01 – 2009-12-312026Q3
Lead (PB90) 0 mg/L2006-01-01 – 2006-12-312026Q3
Lead (PB90) 0 mg/L2003-01-01 – 2005-12-312026Q3
Twelve most recent imported state laboratory records
SubstancePublished resultSample dateLocation / source
NITRATE8.36 MG/L2026-06-15WELL PW-10 / California DDW laboratory results
ETHYLENE DIBROMIDE< 0.020000000 UG/L2026-06-15WELL 08 / California DDW laboratory results
1,2-DIBROMO-3-CHLOROPROPANE0.0800 UG/L2026-06-15WELL 08 / California DDW laboratory results
NITRATE7.72 MG/L2026-06-15WELL 08 / California DDW laboratory results
NITRATE8.50 MG/L2026-05-08WELL 07 / California DDW laboratory results
NITRATE8.70 MG/L2026-05-07WELL 08 / California DDW laboratory results
NITRATE9.01 MG/L2026-05-07WELL 08 / California DDW laboratory results
NITRATE9.10 MG/L2026-05-06WELL 07 / California DDW laboratory results
NITRATE7.75 MG/L2026-05-06WELL PW-10 / California DDW laboratory results
NITRATE8.74 MG/L2026-05-05WELL 07 / California DDW laboratory results
NITRATE8.49 MG/L2026-05-04WELL 07 / California DDW laboratory results
NITRATE14.0 MG/L2026-05-04WELL 07 / 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

10 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
Arsenic Rule / Monitoring, Regular1988-10-01 – 1988-10-31ArchivedNo2026Q3
Miscellaneous Other Rules / Notification, Public1988-10-01 – 1988-10-31ArchivedNo2026Q3
Inorganic Chemicals / Monitoring, Regular1988-10-01 – 1988-10-31ArchivedNo2026Q3
Nitrate Rule / Monitoring, Regular1988-10-01 – 1988-10-31ArchivedNo2026Q3
Inorganic Chemicals / Monitoring, Regular1988-10-01 – 1988-10-31ArchivedNo2026Q3
Arsenic Rule / Monitoring, Regular1987-08-01 – 1987-08-31ArchivedNo2026Q3
Miscellaneous Other Rules / Notification, Public1987-08-01 – 1987-08-31ArchivedNo2026Q3
Inorganic Chemicals / Monitoring, Regular1987-08-01 – 1987-08-31ArchivedNo2026Q3
Nitrate Rule / Monitoring, Regular1987-08-01 – 1987-08-31ArchivedNo2026Q3
Inorganic Chemicals / Monitoring, Regular1987-08-01 – 1987-08-31ArchivedNo2026Q3

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)

Lindo, Richard: 209-634-4986

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