An independent public resourceEnglish Español
PublicWater Watch

City of East Palo Alto

Published drinking-water records and contacts for City of East Palo Alto. System CA4110024. Review sources and dates; not a real-time water assessment.

System ID
CA4110024
State or territory
CA
Published population served
29519
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/L2024-04-22SFWD Intertie / 4110024002
4:2 FTS< 0.003 µg/L0.003 µg/L2024-04-22SFWD Intertie / 4110024002
6:2 FTS< 0.005 µg/L0.005 µg/L2024-04-22SFWD Intertie / 4110024002
8:2 FTS< 0.005 µg/L0.005 µg/L2024-04-22SFWD Intertie / 4110024002
9Cl-PF3ONS< 0.002 µg/L0.002 µg/L2024-04-22SFWD Intertie / 4110024002
ADONA< 0.003 µg/L0.003 µg/L2024-04-22SFWD Intertie / 4110024002
HFPO-DA< 0.005 µg/L0.005 µg/L2024-04-22SFWD Intertie / 4110024002
NEtFOSAA< 0.005 µg/L0.005 µg/L2024-07-15SFWD Intertie / 4110024002
NFDHA< 0.02 µg/L0.02 µg/L2024-04-22SFWD Intertie / 4110024002
NMeFOSAA< 0.006 µg/L0.006 µg/L2024-07-15SFWD Intertie / 4110024002
PFBA< 0.005 µg/L0.005 µg/L2024-04-22SFWD Intertie / 4110024002
PFBS< 0.003 µg/L0.003 µg/L2024-04-22SFWD Intertie / 4110024002
PFDA< 0.003 µg/L0.003 µg/L2024-04-22SFWD Intertie / 4110024002
PFDoA< 0.003 µg/L0.003 µg/L2024-04-22SFWD Intertie / 4110024002
PFEESA< 0.003 µg/L0.003 µg/L2024-04-22SFWD Intertie / 4110024002
PFHpA< 0.003 µg/L0.003 µg/L2024-04-22SFWD Intertie / 4110024002
PFHpS< 0.003 µg/L0.003 µg/L2024-04-22SFWD Intertie / 4110024002
PFHxA< 0.003 µg/L0.003 µg/L2024-04-22SFWD Intertie / 4110024002
PFHxS< 0.003 µg/L0.003 µg/L2024-04-22SFWD Intertie / 4110024002
PFMBA< 0.003 µg/L0.003 µg/L2024-04-22SFWD Intertie / 4110024002
PFMPA< 0.004 µg/L0.004 µg/L2024-04-22SFWD Intertie / 4110024002
PFNA< 0.004 µg/L0.004 µg/L2024-04-22SFWD Intertie / 4110024002
PFOA< 0.004 µg/L0.004 µg/L2024-04-22SFWD Intertie / 4110024002
PFOS< 0.004 µg/L0.004 µg/L2024-04-22SFWD Intertie / 4110024002
PFPeA< 0.003 µg/L0.003 µg/L2024-04-22SFWD Intertie / 4110024002
PFPeS< 0.004 µg/L0.004 µg/L2024-04-22SFWD Intertie / 4110024002
PFTA< 0.008 µg/L0.008 µg/L2024-07-15SFWD Intertie / 4110024002
PFTrDA< 0.007 µg/L0.007 µg/L2024-07-15SFWD Intertie / 4110024002
PFUnA< 0.002 µg/L0.002 µg/L2024-04-22SFWD Intertie / 4110024002
lithium< 9 µg/L9 µg/L2024-04-22SFWD Intertie / 4110024002

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 mg/L2015-01-01 – 2017-12-312026Q3
Lead (PB90) 0.001 mg/L2013-01-01 – 2015-12-312026Q3
Lead (PB90) 0.0017 mg/L2012-01-01 – 2014-12-312026Q3
Lead (PB90) 0.0017 mg/L2010-01-01 – 2012-12-312026Q3
Lead (PB90) 0.005 mg/L2007-01-01 – 2009-12-312026Q3
Twelve most recent imported state laboratory records
SubstancePublished resultSample dateLocation / source
MANGANESE160 UG/L2026-06-15GLORIA WAY WELL / California DDW laboratory results
CHLORIDE300 MG/L2026-06-15GLORIA WAY WELL / California DDW laboratory results
TDS750 MG/L2026-06-15GLORIA WAY WELL / California DDW laboratory results
IRON200 UG/L2026-06-15GLORIA WAY WELL / California DDW laboratory results
IRON200 UG/L2026-04-20GLORIA WAY WELL / California DDW laboratory results
TDS770 MG/L2026-04-20GLORIA WAY WELL / California DDW laboratory results
CHLORIDE290 MG/L2026-04-20GLORIA WAY WELL / California DDW laboratory results
MANGANESE150 UG/L2026-04-20GLORIA WAY WELL / California DDW laboratory results
DIBROMOACETIC ACID< 1.000000000 UG/L2026-04-06DBPR Sample / California DDW laboratory results
CHLOROFORM45.55 UG/L2026-04-06DBPR Sample / California DDW laboratory results
DICHLOROACETIC ACID29.3 UG/L2026-04-06DBPR Sample / California DDW laboratory results
BROMODICHLOROMETHANE1.95 UG/L2026-04-06DBPR Sample / 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

1 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
Miscellaneous Other Rules / Notification, Public1988-11-01 – 1988-11-30ArchivedNo2026Q3

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)

Vining, Matthew: 650-229-3818

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