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City of Paso Robles Water Division

Published drinking-water records and contacts for City of Paso Robles Water Division. System CA4010007. Review sources and dates; not a real-time water assessment.

System ID
CA4010007
State or territory
CA
Published population served
31176
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/L2025-10-02Fox Well 21 / 4010007818
4:2 FTS< 0.003 µg/L0.003 µg/L2025-10-02KD Well 27 / 4010007663
6:2 FTS< 0.005 µg/L0.005 µg/L2025-10-02KD Well 27 / 4010007663
8:2 FTS< 0.005 µg/L0.005 µg/L2025-10-02Fox Well 21 / 4010007818
9Cl-PF3ONS< 0.002 µg/L0.002 µg/L2025-10-02KD Well 27 / 4010007663
ADONA< 0.003 µg/L0.003 µg/L2025-10-02Fox Well 21 / 4010007818
HFPO-DA< 0.005 µg/L0.005 µg/L2025-10-02KD Well 27 / 4010007663
NEtFOSAA< 0.005 µg/L0.005 µg/L2025-10-02KD Well 27 / 4010007663
NFDHA< 0.02 µg/L0.02 µg/L2025-10-02Fox Well 21 / 4010007818
NMeFOSAA< 0.006 µg/L0.006 µg/L2025-10-02Fox Well 21 / 4010007818
PFBA< 0.005 µg/L0.005 µg/L2025-10-02Fox Well 21 / 4010007818
PFBS< 0.003 µg/L0.003 µg/L2025-10-02Fox Well 21 / 4010007818
PFDA< 0.003 µg/L0.003 µg/L2025-10-02KD Well 27 / 4010007663
PFDoA< 0.003 µg/L0.003 µg/L2025-10-02Fox Well 21 / 4010007818
PFEESA< 0.003 µg/L0.003 µg/L2025-10-02KD Well 27 / 4010007663
PFHpA< 0.003 µg/L0.003 µg/L2025-10-02KD Well 27 / 4010007663
PFHpS< 0.003 µg/L0.003 µg/L2025-10-02Fox Well 21 / 4010007818
PFHxA< 0.003 µg/L0.003 µg/L2025-10-02Fox Well 21 / 4010007818
PFHxS< 0.003 µg/L0.003 µg/L2025-10-02Fox Well 21 / 4010007818
PFMBA< 0.003 µg/L0.003 µg/L2025-10-02KD Well 27 / 4010007663
PFMPA< 0.004 µg/L0.004 µg/L2025-10-02Fox Well 21 / 4010007818
PFNA< 0.004 µg/L0.004 µg/L2025-10-02KD Well 27 / 4010007663
PFOA< 0.004 µg/L0.004 µg/L2025-10-02KD Well 27 / 4010007663
PFOS< 0.004 µg/L0.004 µg/L2025-10-02KD Well 27 / 4010007663
PFPeA< 0.003 µg/L0.003 µg/L2025-10-02KD Well 27 / 4010007663
PFPeS< 0.004 µg/L0.004 µg/L2025-10-02KD Well 27 / 4010007663
PFTA< 0.008 µg/L0.008 µg/L2025-10-02Fox Well 21 / 4010007818
PFTrDA< 0.007 µg/L0.007 µg/L2025-10-02KD Well 27 / 4010007663
PFUnA< 0.002 µg/L0.002 µg/L2025-10-02Fox Well 21 / 4010007818
lithium49.2 µg/L9 µg/L2025-10-02Fox Well 21 / 4010007818

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
MANGANESE22 UG/L2026-07-07NACIMIENTO WATER PROJECT TURNOUT - RAW / California DDW laboratory results
CARBON, TOTAL3.6 MG/L2026-07-07NACIMIENTO WATER PROJECT TURNOUT - RAW / California DDW laboratory results
IRON< 100.000000000 UG/L2026-07-07NACIMIENTO WATER PROJECT TURNOUT - RAW / California DDW laboratory results
1,2,4-TRICHLOROBENZENE< 0.500000000 UG/L2026-06-09SHERWOOD WELL 11 / California DDW laboratory results
BENZENE< 0.500000000 UG/L2026-06-09SHERWOOD WELL 11 / California DDW laboratory results
XYLENES, TOTAL< 0.500000000 UG/L2026-06-09SHERWOOD WELL 11 / California DDW laboratory results
DIBROMOCHLOROMETHANE< 1.000000000 UG/L2026-06-09SHERWOOD WELL 11 / California DDW laboratory results
BROMODICHLOROMETHANE< 1.000000000 UG/L2026-06-09SHERWOOD WELL 11 / California DDW laboratory results
TRANS-1,2-DICHLOROETHYLENE< 0.500000000 UG/L2026-06-09SHERWOOD WELL 11 / California DDW laboratory results
ARSENIC4.9 UG/L2026-06-09SHERWOOD 9 ARSENIC TP EFFLUENT BLEND / California DDW laboratory results
O-XYLENE< 0.500000000 UG/L2026-06-09SHERWOOD WELL 11 / California DDW laboratory results
TETRACHLOROETHYLENE< 0.500000000 UG/L2026-06-09SHERWOOD WELL 11 / 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)

Gonzalez, Kirk: 805-237-3861

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