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Potrero Elementary School

Published drinking-water records and contacts for Potrero Elementary School. System CA3700963. Review sources and dates; not a real-time water assessment.

System ID
CA3700963
State or territory
CA
Published population served
300
System type (source code)
NTNCWS

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/L2024-11-19Sampling Station / EP001
4:2 FTS< 0.003 µg/L0.003 µg/L2024-11-19Sampling Station / EP001
6:2 FTS< 0.005 µg/L0.005 µg/L2024-11-19Sampling Station / EP001
8:2 FTS< 0.005 µg/L0.005 µg/L2024-11-19Sampling Station / EP001
9Cl-PF3ONS< 0.002 µg/L0.002 µg/L2024-11-19Sampling Station / EP001
ADONA< 0.003 µg/L0.003 µg/L2024-11-19Sampling Station / EP001
HFPO-DA< 0.005 µg/L0.005 µg/L2024-11-19Sampling Station / EP001
NEtFOSAA< 0.005 µg/L0.005 µg/L2024-11-19Sampling Station / EP001
NFDHA< 0.02 µg/L0.02 µg/L2024-11-19Sampling Station / EP001
NMeFOSAA< 0.006 µg/L0.006 µg/L2024-11-19Sampling Station / EP001
PFBA0.0096 µg/L0.005 µg/L2024-11-19Sampling Station / EP001
PFBS0.0046 µg/L0.003 µg/L2024-11-19Sampling Station / EP001
PFDA< 0.003 µg/L0.003 µg/L2024-11-19Sampling Station / EP001
PFDoA< 0.003 µg/L0.003 µg/L2024-11-19Sampling Station / EP001
PFEESA< 0.003 µg/L0.003 µg/L2024-11-19Sampling Station / EP001
PFHpA0.0480 µg/L0.003 µg/L2024-11-19Sampling Station / EP001
PFHpS< 0.003 µg/L0.003 µg/L2024-11-19Sampling Station / EP001
PFHxA0.0591 µg/L0.003 µg/L2024-11-19Sampling Station / EP001
PFHxS0.1937 µg/L0.003 µg/L2024-11-19Sampling Station / EP001
PFMBA< 0.003 µg/L0.003 µg/L2024-11-19Sampling Station / EP001
PFMPA< 0.004 µg/L0.004 µg/L2024-11-19Sampling Station / EP001
PFNA0.0084 µg/L0.004 µg/L2024-11-19Sampling Station / EP001
PFOA0.1745 µg/L0.004 µg/L2024-11-19Sampling Station / EP001
PFOS0.0642 µg/L0.004 µg/L2024-11-19Sampling Station / EP001
PFPeA0.0358 µg/L0.003 µg/L2024-11-19Sampling Station / EP001
PFPeS< 0.004 µg/L0.004 µg/L2024-11-19Sampling Station / EP001
PFTA< 0.008 µg/L0.008 µg/L2024-11-19Sampling Station / EP001
PFTrDA< 0.007 µg/L0.007 µg/L2024-11-19Sampling Station / EP001
PFUnA< 0.002 µg/L0.002 µg/L2024-11-19Sampling Station / EP001
lithium< 9 µg/L9 µg/L2024-11-19Sampling Station / EP001

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) 0.00473 mg/L2020-01-01 – 2022-12-312026Q3
Lead (PB90) 0.00268 mg/L2019-01-01 – 2021-12-312026Q3
Lead (PB90) 0.00265 mg/L2013-01-01 – 2015-12-312026Q3
Lead (PB90) 0 mg/L2009-01-01 – 2011-12-312026Q3
Twelve most recent imported state laboratory records
SubstancePublished resultSample dateLocation / source
NITRATE5.0 MG/L2026-06-30WELL 01 / California DDW laboratory results
ODOR< 1.000000000 TON2026-04-12WELL 01 / California DDW laboratory results
O-DICHLOROBENZENE< 0.500000000 UG/L2026-03-22WELL 01 / California DDW laboratory results
CALCIUM21 MG/L2026-03-22WELL 01 / California DDW laboratory results
9CL-PF3ONS< 2.000000000 NG/L2026-03-22WELL 01 / California DDW laboratory results
ADONA< 2.000000000 NG/L2026-03-22WELL 01 / California DDW laboratory results
HARDNESS, TOTAL (AS CACO3)91 MG/L2026-03-22WELL 01 / California DDW laboratory results
AROCLOR 1232< 0.500000000 UG/L2026-03-22WELL 01 / California DDW laboratory results
CARBOFURAN< 5.000000000 UG/L2026-03-22WELL 01 / California DDW laboratory results
1,2-DICHLOROETHANE< 0.500000000 UG/L2026-03-22WELL 01 / California DDW laboratory results
RADIUM-226< 0.410000000 PCI/L2026-03-22WELL 01 / California DDW laboratory results
CHROMIUM, HEX< 0.100000000 UG/L2026-03-22WELL 01 / 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

2 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
Radionuclides and Revised Rad Rule / Monitoring, Regular1981-10-01 – 1982-09-30ArchivedNo2026Q3
Radionuclides and Revised Rad Rule / Monitoring, Regular1980-10-30 – 1981-10-29ArchivedNo2026Q3

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)

Mann, Jacob: 619-508-8077

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