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El Dorado Id - Main

Published drinking-water records and contacts for El Dorado Id - Main. System CA0910001. Review sources and dates; not a real-time water assessment.

System ID
CA0910001
State or territory
CA
Published population served
132171
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/L2024-05-08Reservoir 1 WTP / 0910001805
4:2 FTS< 0.003 µg/L0.003 µg/L2024-05-08Reservoir 1 WTP / 0910001805
6:2 FTS< 0.005 µg/L0.005 µg/L2024-05-08Reservoir 1 WTP / 0910001805
8:2 FTS< 0.005 µg/L0.005 µg/L2024-05-08Reservoir 1 WTP / 0910001805
9Cl-PF3ONS< 0.002 µg/L0.002 µg/L2024-05-08Reservoir 1 WTP / 0910001805
ADONA< 0.003 µg/L0.003 µg/L2024-05-08Reservoir 1 WTP / 0910001805
HFPO-DA< 0.005 µg/L0.005 µg/L2024-05-08Reservoir 1 WTP / 0910001805
NEtFOSAA< 0.005 µg/L0.005 µg/L2024-05-08Reservoir 1 WTP / 0910001805
NFDHA< 0.02 µg/L0.02 µg/L2024-05-08Reservoir 1 WTP / 0910001805
NMeFOSAA< 0.006 µg/L0.006 µg/L2024-05-08Reservoir 1 WTP / 0910001805
PFBA< 0.005 µg/L0.005 µg/L2024-05-08Reservoir 1 WTP / 0910001805
PFBS< 0.003 µg/L0.003 µg/L2024-05-08Reservoir 1 WTP / 0910001805
PFDA< 0.003 µg/L0.003 µg/L2024-05-08Reservoir 1 WTP / 0910001805
PFDoA< 0.003 µg/L0.003 µg/L2024-05-08Reservoir 1 WTP / 0910001805
PFEESA< 0.003 µg/L0.003 µg/L2024-05-08Reservoir 1 WTP / 0910001805
PFHpA< 0.003 µg/L0.003 µg/L2024-05-08Reservoir 1 WTP / 0910001805
PFHpS< 0.003 µg/L0.003 µg/L2024-05-08Reservoir 1 WTP / 0910001805
PFHxA< 0.003 µg/L0.003 µg/L2024-05-08Reservoir 1 WTP / 0910001805
PFHxS< 0.003 µg/L0.003 µg/L2024-05-08Reservoir 1 WTP / 0910001805
PFMBA< 0.003 µg/L0.003 µg/L2024-05-08Reservoir 1 WTP / 0910001805
PFMPA< 0.004 µg/L0.004 µg/L2024-05-08Reservoir 1 WTP / 0910001805
PFNA< 0.004 µg/L0.004 µg/L2024-05-08Reservoir 1 WTP / 0910001805
PFOA< 0.004 µg/L0.004 µg/L2024-05-08Reservoir 1 WTP / 0910001805
PFOS< 0.004 µg/L0.004 µg/L2024-05-08Reservoir 1 WTP / 0910001805
PFPeA< 0.003 µg/L0.003 µg/L2024-05-08Reservoir 1 WTP / 0910001805
PFPeS< 0.004 µg/L0.004 µg/L2024-05-08Reservoir 1 WTP / 0910001805
PFTA< 0.008 µg/L0.008 µg/L2024-05-08Reservoir 1 WTP / 0910001805
PFTrDA< 0.007 µg/L0.007 µg/L2024-05-08Reservoir 1 WTP / 0910001805
PFUnA< 0.002 µg/L0.002 µg/L2024-05-08Reservoir 1 WTP / 0910001805
lithium< 9 µg/L9 µg/L2024-05-08Reservoir 1 WTP / 0910001805

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) 0.0024 mg/L2015-01-01 – 2017-12-312026Q3
Lead (PB90) 0 mg/L2012-01-01 – 2014-12-312026Q3
Lead (PB90) 0.0035 mg/L2009-01-01 – 2011-12-312026Q3
Lead (PB90) 0 mg/L2006-01-01 – 2008-12-312026Q3
Lead (PB90) 0.0032 mg/L2005-01-01 – 2005-12-312026Q3
Twelve most recent imported state laboratory records
SubstancePublished resultSample dateLocation / source
PERFLUOROHEXANOIC ACID (PFHXA)< 2.000000000 NG/L2026-05-12EL DORADO HILLS WTP - TREATED / California DDW laboratory results
11CL-PF3OUDS< 2.000000000 NG/L2026-05-12EL DORADO HILLS WTP - TREATED / California DDW laboratory results
PERFLUOROHEXANE SULFONIC ACID (PFHxS)< 2.000000000 NG/L2026-05-12EL DORADO HILLS WTP - TREATED / California DDW laboratory results
PERFLUOROPENTANOIC ACID (PFPEA)< 2.000000000 NG/L2026-05-12EL DORADO HILLS WTP - TREATED / California DDW laboratory results
PERFLUOROOCTANE SULFONIC ACID 6:2 FTS< 5.000000000 NG/L2026-05-12EL DORADO HILLS WTP - TREATED / California DDW laboratory results
PERFLUOROCTANOIC ACID (PFOA)< 2.000000000 NG/L2026-05-12EL DORADO HILLS WTP - TREATED / California DDW laboratory results
PERFLUOROHEPTANOIC ACID (PFHPA)< 2.000000000 NG/L2026-05-12EL DORADO HILLS WTP - TREATED / California DDW laboratory results
NONAFLUORO NFDHA< 2.000000000 NG/L2026-05-12EL DORADO HILLS WTP - TREATED / California DDW laboratory results
9CL-PF3ONS< 2.000000000 NG/L2026-05-12EL DORADO HILLS WTP - TREATED / California DDW laboratory results
PERFLUORO PFEESA< 2.000000000 NG/L2026-05-12EL DORADO HILLS WTP - TREATED / California DDW laboratory results
PH, FIELD7.35 PH2026-05-12EL DORADO HILLS WTP - TREATED / California DDW laboratory results
PERFLUOROPENTANESULFONIC ACID (PFPES)< 2.000000000 NG/L2026-05-12EL DORADO HILLS WTP - TREATED / 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)

Vandeyar, Pravani: 530-642-4041

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