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Tud - Upper Basin Water System

Published drinking-water records and contacts for Tud - Upper Basin Water System. System CA5510012. Review sources and dates; not a real-time water assessment.

System ID
CA5510012
State or territory
CA
Published population served
13280
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/L2024-10-08Crystal Falls / CA5510012023023
4:2 FTS< 0.003 µg/L0.003 µg/L2024-10-08Lakewood / CA5510012010010
6:2 FTS< 0.005 µg/L0.005 µg/L2024-10-08Crystal Falls / CA5510012023023
8:2 FTS< 0.005 µg/L0.005 µg/L2024-10-08Crystal Falls / CA5510012023023
9Cl-PF3ONS< 0.002 µg/L0.002 µg/L2024-10-08Monte Grande / CA5510012027027
ADONA< 0.003 µg/L0.003 µg/L2024-10-08Crystal Falls / CA5510012023023
HFPO-DA< 0.005 µg/L0.005 µg/L2024-10-08Monte Grande / CA5510012027027
NEtFOSAA< 0.005 µg/L0.005 µg/L2024-10-08Crystal Falls / CA5510012023023
NFDHA< 0.02 µg/L0.02 µg/L2024-10-08Monte Grande / CA5510012027027
NMeFOSAA< 0.006 µg/L0.006 µg/L2024-10-08Monte Grande / CA5510012027027
PFBA< 0.005 µg/L0.005 µg/L2024-10-08Crystal Falls / CA5510012023023
PFBS< 0.003 µg/L0.003 µg/L2024-10-08Monte Grande / CA5510012027027
PFDA< 0.003 µg/L0.003 µg/L2024-10-08Crystal Falls / CA5510012023023
PFDoA< 0.003 µg/L0.003 µg/L2024-10-08Crystal Falls / CA5510012023023
PFEESA< 0.003 µg/L0.003 µg/L2024-10-08Monte Grande / CA5510012027027
PFHpA< 0.003 µg/L0.003 µg/L2024-10-08Monte Grande / CA5510012027027
PFHpS< 0.003 µg/L0.003 µg/L2024-10-08Monte Grande / CA5510012027027
PFHxA< 0.003 µg/L0.003 µg/L2024-10-08Monte Grande / CA5510012027027
PFHxS< 0.003 µg/L0.003 µg/L2024-10-08Lakewood / CA5510012010010
PFMBA< 0.003 µg/L0.003 µg/L2024-10-08Lakewood / CA5510012010010
PFMPA< 0.004 µg/L0.004 µg/L2024-10-08Lakewood / CA5510012010010
PFNA< 0.004 µg/L0.004 µg/L2024-10-08Lakewood / CA5510012010010
PFOA< 0.004 µg/L0.004 µg/L2024-10-08Crystal Falls / CA5510012023023
PFOS< 0.004 µg/L0.004 µg/L2024-10-08Lakewood / CA5510012010010
PFPeA< 0.003 µg/L0.003 µg/L2024-10-08Crystal Falls / CA5510012023023
PFPeS< 0.004 µg/L0.004 µg/L2024-10-08Monte Grande / CA5510012027027
PFTA< 0.008 µg/L0.008 µg/L2024-10-08Lakewood / CA5510012010010
PFTrDA< 0.007 µg/L0.007 µg/L2024-10-08Crystal Falls / CA5510012023023
PFUnA< 0.002 µg/L0.002 µg/L2024-10-08Monte Grande / CA5510012027027
lithium< 9 µg/L9 µg/L2024-10-08Monte Grande / CA5510012027027

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) 0.0085 mg/L2012-01-01 – 2014-12-312026Q3
Lead (PB90) 0.009 mg/L2009-01-01 – 2011-12-312026Q3
Lead (PB90) 0.014 mg/L2006-01-01 – 2008-12-312026Q3
Lead (PB90) 0.008 mg/L2006-01-01 – 2006-12-312026Q3
Twelve most recent imported state laboratory records
SubstancePublished resultSample dateLocation / source
COPPER, FREE< 50.000000000 UG/L2026-07-01LCR Tap Sample / California DDW laboratory results
LEAD< 5.000000000 UG/L2026-07-01LCR Tap Sample / California DDW laboratory results
LEAD9.7 UG/L2026-06-30LCR Tap Sample / California DDW laboratory results
LEAD< 5.000000000 UG/L2026-06-30LCR Tap Sample / California DDW laboratory results
LEAD8.4 UG/L2026-06-30LCR Tap Sample / California DDW laboratory results
LEAD< 5.000000000 UG/L2026-06-30LCR Tap Sample / California DDW laboratory results
COPPER, FREE< 50.000000000 UG/L2026-06-30LCR Tap Sample / California DDW laboratory results
COPPER, FREE85 UG/L2026-06-30LCR Tap Sample / California DDW laboratory results
COPPER, FREE< 50.000000000 UG/L2026-06-30LCR Tap Sample / California DDW laboratory results
COPPER, FREE< 50.000000000 UG/L2026-06-30LCR Tap Sample / California DDW laboratory results
LEAD< 5.000000000 UG/L2026-06-30LCR Tap Sample / California DDW laboratory results
LEAD< 5.000000000 UG/L2026-06-30LCR Tap 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
Revised Total Coliform Rule / Monitoring, Lab Certification/Method Error (RTCR)2025-04-01 – 2025-05-31ResolvedNo2026Q3

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)

Hall, Eric: 209-532-5536

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