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Gswc - Florence/Graham

Published drinking-water records and contacts for Gswc - Florence/Graham. System CA1910077. Review sources and dates; not a real-time water assessment.

System ID
CA1910077
State or territory
CA
Published population served
63472
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/L2024-12-02MWD Intertie / 1910077816
4:2 FTS< 0.003 µg/L0.003 µg/L2024-12-02MWD Intertie / 1910077816
6:2 FTS< 0.005 µg/L0.005 µg/L2024-12-02MWD Intertie / 1910077816
8:2 FTS< 0.005 µg/L0.005 µg/L2024-12-02MWD Intertie / 1910077816
9Cl-PF3ONS< 0.002 µg/L0.002 µg/L2024-12-02MWD Intertie / 1910077816
ADONA< 0.003 µg/L0.003 µg/L2024-12-02MWD Intertie / 1910077816
HFPO-DA< 0.005 µg/L0.005 µg/L2024-12-02MWD Intertie / 1910077816
NEtFOSAA< 0.005 µg/L0.005 µg/L2024-12-02MWD Intertie / 1910077816
NFDHA< 0.02 µg/L0.02 µg/L2024-12-02MWD Intertie / 1910077816
NMeFOSAA< 0.006 µg/L0.006 µg/L2024-12-02MWD Intertie / 1910077816
PFBA< 0.005 µg/L0.005 µg/L2024-12-02MWD Intertie / 1910077816
PFBS< 0.003 µg/L0.003 µg/L2024-12-02MWD Intertie / 1910077816
PFDA< 0.003 µg/L0.003 µg/L2024-12-02MWD Intertie / 1910077816
PFDoA< 0.003 µg/L0.003 µg/L2024-12-02MWD Intertie / 1910077816
PFEESA< 0.003 µg/L0.003 µg/L2024-12-02MWD Intertie / 1910077816
PFHpA< 0.003 µg/L0.003 µg/L2024-12-02MWD Intertie / 1910077816
PFHpS< 0.003 µg/L0.003 µg/L2024-12-02MWD Intertie / 1910077816
PFHxA< 0.003 µg/L0.003 µg/L2024-12-02MWD Intertie / 1910077816
PFHxS< 0.003 µg/L0.003 µg/L2024-12-02MWD Intertie / 1910077816
PFMBA< 0.003 µg/L0.003 µg/L2024-12-02MWD Intertie / 1910077816
PFMPA< 0.004 µg/L0.004 µg/L2024-12-02MWD Intertie / 1910077816
PFNA< 0.004 µg/L0.004 µg/L2024-12-02MWD Intertie / 1910077816
PFOA< 0.004 µg/L0.004 µg/L2024-12-02MWD Intertie / 1910077816
PFOS< 0.004 µg/L0.004 µg/L2024-12-02MWD Intertie / 1910077816
PFPeA< 0.003 µg/L0.003 µg/L2024-12-02MWD Intertie / 1910077816
PFPeS< 0.004 µg/L0.004 µg/L2024-12-02MWD Intertie / 1910077816
PFTA< 0.008 µg/L0.008 µg/L2024-12-02MWD Intertie / 1910077816
PFTrDA< 0.007 µg/L0.007 µg/L2024-12-02MWD Intertie / 1910077816
PFUnA< 0.002 µg/L0.002 µg/L2024-12-02MWD Intertie / 1910077816
lithium43 µg/L9 µg/L2024-12-02MWD Intertie / 1910077816

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/L2020-01-01 – 2022-12-312026Q3
Lead (PB90) 0 mg/L2017-01-01 – 2019-12-312026Q3
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
Twelve most recent imported state laboratory records
SubstancePublished resultSample dateLocation / source
CHROMIUM, HEX1.2 UG/L2026-06-01CONVERSE WELL 02 - ACTIVE 6/22/10 / California DDW laboratory results
PERFLUOROPENTANESULFONIC ACID (PFPES)< 1.700000000 NG/L2026-05-27GOODYEAR WELL 04 / California DDW laboratory results
PERFLUORO PFEESA< 1.700000000 NG/L2026-05-27GOODYEAR WELL 04 / California DDW laboratory results
HFPO-DA< 1.700000000 NG/L2026-05-27GOODYEAR WELL 04 / California DDW laboratory results
PERFLUOROHEXANE SULFONIC ACID 4:2 FTS< 1.700000000 NG/L2026-05-27GOODYEAR WELL 04 / California DDW laboratory results
PERFLUORODECANE SULFONIC ACID 8:2 FTS< 1.700000000 NG/L2026-05-27GOODYEAR WELL 04 / California DDW laboratory results
ADONA< 1.700000000 NG/L2026-05-27GOODYEAR WELL 04 / California DDW laboratory results
PERFLUOROHEPTANESULFONIC ACID (PFHPS)< 1.700000000 NG/L2026-05-27GOODYEAR WELL 04 / California DDW laboratory results
NONAFLUORO NFDHA< 1.700000000 NG/L2026-05-27GOODYEAR WELL 04 / California DDW laboratory results
PERFLUORONONANOIC ACID (PFNA)< 1.700000000 NG/L2026-05-27GOODYEAR WELL 04 / California DDW laboratory results
PERFLUOROHEPTANOIC ACID (PFHPA)< 1.700000000 NG/L2026-05-27GOODYEAR WELL 04 / California DDW laboratory results
PERFLUOROOCTANE SULFONIC ACID 6:2 FTS< 1.700000000 NG/L2026-05-27GOODYEAR WELL 04 / 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)

Flores, Rocio: 626-250-1517

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