Orosi Public Utility District

Published drinking-water records and contacts for Orosi Public Utility District. System CA5410008. Review sources and dates; not a real-time water assessment.

System ID: CA5410008
State or territory: CA
Published population served: 8300
System type (source code): CWS

Published records and dates

PFAS / lithium (EPA UCMR 5): 240 — 2024-01-08 – 2024-07-08
Lead and copper monitoring summaries: 33 — 1992-01-01 – 2026-12-31
California DDW laboratory results: 28 — 2026-01-21 – 2026-04-22

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
Substance	Published result	Reporting limit	Sample date	Sampling location
11Cl-PF3OUdS	< 0.005 µg/L	0.005 µg/L	2024-07-08	Entry Point Facility 1 / EP001
4:2 FTS	< 0.003 µg/L	0.003 µg/L	2024-07-08	Entry Point Facility 3 / EP003
6:2 FTS	< 0.005 µg/L	0.005 µg/L	2024-07-08	Entry Point Facility 2 / EP002
8:2 FTS	< 0.005 µg/L	0.005 µg/L	2024-07-08	Entry Point Facility 3 / EP003
9Cl-PF3ONS	< 0.002 µg/L	0.002 µg/L	2024-07-08	Entry Point Facility 3 / EP003
ADONA	< 0.003 µg/L	0.003 µg/L	2024-07-08	Entry Point Facility 3 / EP003
HFPO-DA	< 0.005 µg/L	0.005 µg/L	2024-07-08	Entry Point Facility 1 / EP001
NEtFOSAA	< 0.005 µg/L	0.005 µg/L	2024-07-08	Entry Point Facility 4 / EP004
NFDHA	< 0.02 µg/L	0.02 µg/L	2024-07-08	Entry Point Facility 4 / EP004
NMeFOSAA	< 0.006 µg/L	0.006 µg/L	2024-07-08	Entry Point Facility 3 / EP003
PFBA	< 0.005 µg/L	0.005 µg/L	2024-07-08	Entry Point Facility 2 / EP002
PFBS	< 0.003 µg/L	0.003 µg/L	2024-07-08	Entry Point Facility 2 / EP002
PFDA	< 0.003 µg/L	0.003 µg/L	2024-07-08	Entry Point Facility 3 / EP003
PFDoA	< 0.003 µg/L	0.003 µg/L	2024-07-08	Entry Point Facility 4 / EP004
PFEESA	< 0.003 µg/L	0.003 µg/L	2024-07-08	Entry Point Facility 4 / EP004
PFHpA	< 0.003 µg/L	0.003 µg/L	2024-07-08	Entry Point Facility 1 / EP001
PFHpS	< 0.003 µg/L	0.003 µg/L	2024-07-08	Entry Point Facility 2 / EP002
PFHxA	< 0.003 µg/L	0.003 µg/L	2024-07-08	Entry Point Facility 3 / EP003
PFHxS	< 0.003 µg/L	0.003 µg/L	2024-07-08	Entry Point Facility 3 / EP003
PFMBA	< 0.003 µg/L	0.003 µg/L	2024-07-08	Entry Point Facility 1 / EP001
PFMPA	< 0.004 µg/L	0.004 µg/L	2024-07-08	Entry Point Facility 2 / EP002
PFNA	< 0.004 µg/L	0.004 µg/L	2024-07-08	Entry Point Facility 2 / EP002
PFOA	< 0.004 µg/L	0.004 µg/L	2024-07-08	Entry Point Facility 1 / EP001
PFOS	< 0.004 µg/L	0.004 µg/L	2024-07-08	Entry Point Facility 2 / EP002
PFPeA	< 0.003 µg/L	0.003 µg/L	2024-07-08	Entry Point Facility 2 / EP002
PFPeS	< 0.004 µg/L	0.004 µg/L	2024-07-08	Entry Point Facility 1 / EP001
PFTA	< 0.008 µg/L	0.008 µg/L	2024-07-08	Entry Point Facility 1 / EP001
PFTrDA	< 0.007 µg/L	0.007 µg/L	2024-07-08	Entry Point Facility 4 / EP004
PFUnA	< 0.002 µg/L	0.002 µg/L	2024-07-08	Entry Point Facility 3 / EP003
lithium	< 9 µg/L	9 µg/L	2024-07-08	Entry Point Facility 3 / EP003

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
Substance	Monitoring period	Source quarter
Lead (PB90)	2024-01-01 – 2026-12-31	2026Q3
Lead (PB90)	2021-01-01 – 2023-12-31	2026Q3
Lead (PB90)	2018-01-01 – 2020-12-31	2026Q3
Lead (PB90)	2015-01-01 – 2017-12-31	2026Q3
Lead (PB90)	2012-01-01 – 2014-12-31	2026Q3
Lead (PB90)	2009-01-01 – 2011-12-31	2026Q3
Lead (PB90)	2011-01-01 – 2011-12-31	2026Q3
Lead (PB90)	2006-01-01 – 2008-12-31	2026Q3

Twelve most recent imported state laboratory records
Substance	Published result	Sample date	Location / source
ATRAZINE	< 0.500000000 UG/L	2026-04-22	WELL 04-RAW / California DDW laboratory results
PH	7.9 PH	2026-04-22	WELL 04-RAW / California DDW laboratory results
1,2,3-TRICHLOROPROPANE	0.0027 UG/L	2026-04-22	WELL 05A-RAW / California DDW laboratory results
NITRATE	5.6 MG/L	2026-04-22	WELL 04-RAW / California DDW laboratory results
PH	8.1 PH	2026-04-22	WELL 08-RAW / California DDW laboratory results
PH	8.0 PH	2026-04-22	WELL 05A-RAW / California DDW laboratory results
LASSO	< 1.000000000 UG/L	2026-04-22	WELL 10 - RAW / California DDW laboratory results
SIMAZINE	< 1.000000000 UG/L	2026-04-22	WELL 05A-RAW / California DDW laboratory results
ETHYLENE DIBROMIDE	< 0.020000000 UG/L	2026-04-22	WELL 04-RAW / California DDW laboratory results
ATRAZINE	< 0.500000000 UG/L	2026-04-22	WELL 05A-RAW / California DDW laboratory results
SIMAZINE	< 1.000000000 UG/L	2026-04-22	WELL 10 - RAW / California DDW laboratory results
PH	8.1 PH	2026-04-22	WELL 10 - RAW / 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.

EPA SDWIS lead/copper summaries and service areas — source period: — – —; last checked: 2026-10-17
EPA SDWIS contacts and compliance records — source period: — – —; last checked: 2026-10-17
EPA UCMR 5 sample results — source period: 2023-01-03 – 2026-06-17; last checked: 2026-10-17
California DDW laboratory results — last successful check: 2026-10-17

Administrative contact (EPA filing)

Mariscal, Raul: 559-528-4262

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