Western Mwd - Murrieta Division

Published drinking-water records and contacts for Western Mwd - Murrieta Division. System CA3310036. Review sources and dates; not a real-time water assessment.

System ID: CA3310036
State or territory: CA
Published population served: 17453
System type (source code): CWS

Published records and dates

PFAS / lithium (EPA UCMR 5): 240 — 2023-08-11 – 2025-02-26
Lead and copper monitoring summaries: 59 — 1993-01-01 – 2025-12-31
California DDW laboratory results: 426 — 2026-01-05 – 2026-06-29

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	2025-02-26	North Well 2 / EP1
4:2 FTS	< 0.003 µg/L	0.003 µg/L	2025-02-26	North Well 2 / EP1
6:2 FTS	< 0.005 µg/L	0.005 µg/L	2025-02-26	North Well 2 / EP1
8:2 FTS	< 0.005 µg/L	0.005 µg/L	2025-02-26	North Well 2 / EP1
9Cl-PF3ONS	< 0.002 µg/L	0.002 µg/L	2025-02-26	North Well 2 / EP1
ADONA	< 0.003 µg/L	0.003 µg/L	2025-02-26	North Well 2 / EP1
HFPO-DA	< 0.005 µg/L	0.005 µg/L	2025-02-26	North Well 2 / EP1
NEtFOSAA	< 0.005 µg/L	0.005 µg/L	2025-02-26	North Well 2 / EP1
NFDHA	< 0.02 µg/L	0.02 µg/L	2025-02-26	North Well 2 / EP1
NMeFOSAA	< 0.006 µg/L	0.006 µg/L	2025-02-26	North Well 2 / EP1
PFBA	< 0.005 µg/L	0.005 µg/L	2025-02-26	North Well 2 / EP1
PFBS	< 0.003 µg/L	0.003 µg/L	2025-02-26	North Well 2 / EP1
PFDA	< 0.003 µg/L	0.003 µg/L	2025-02-26	North Well 2 / EP1
PFDoA	< 0.003 µg/L	0.003 µg/L	2025-02-26	North Well 2 / EP1
PFEESA	< 0.003 µg/L	0.003 µg/L	2025-02-26	North Well 2 / EP1
PFHpA	< 0.003 µg/L	0.003 µg/L	2025-02-26	North Well 2 / EP1
PFHpS	< 0.003 µg/L	0.003 µg/L	2025-02-26	North Well 2 / EP1
PFHxA	< 0.003 µg/L	0.003 µg/L	2025-02-26	North Well 2 / EP1
PFHxS	0.0041 µg/L	0.003 µg/L	2025-02-26	North Well 2 / EP1
PFMBA	< 0.003 µg/L	0.003 µg/L	2025-02-26	North Well 2 / EP1
PFMPA	< 0.004 µg/L	0.004 µg/L	2025-02-26	North Well 2 / EP1
PFNA	< 0.004 µg/L	0.004 µg/L	2025-02-26	North Well 2 / EP1
PFOA	0.0055 µg/L	0.004 µg/L	2025-02-26	North Well 2 / EP1
PFOS	0.0057 µg/L	0.004 µg/L	2025-02-26	North Well 2 / EP1
PFPeA	< 0.003 µg/L	0.003 µg/L	2025-02-26	North Well 2 / EP1
PFPeS	< 0.004 µg/L	0.004 µg/L	2025-02-26	North Well 2 / EP1
PFTA	< 0.008 µg/L	0.008 µg/L	2025-02-26	North Well 2 / EP1
PFTrDA	< 0.007 µg/L	0.007 µg/L	2025-02-26	North Well 2 / EP1
PFUnA	< 0.002 µg/L	0.002 µg/L	2025-02-26	North Well 2 / EP1
lithium	< 9 µg/L	9 µg/L	2025-02-26	North Well 2 / EP1

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	Published 90th percentile	Monitoring period	Source quarter
Lead (PB90)	0.0015 mg/L	2023-01-01 – 2025-12-31	2026Q3
Lead (PB90)	0 mg/L	2020-01-01 – 2022-12-31	2026Q3
Lead (PB90)	0 mg/L	2017-01-01 – 2019-12-31	2026Q3
Lead (PB90)	0 mg/L	2014-01-01 – 2016-12-31	2026Q3
Lead (PB90)	0 mg/L	2013-01-01 – 2015-12-31	2026Q3
Lead (PB90)	0 mg/L	2010-01-01 – 2012-12-31	2026Q3
Lead (PB90)	0 mg/L	2007-01-01 – 2009-12-31	2026Q3
Lead (PB90)	0 mg/L	2004-01-01 – 2006-12-31	2026Q3

Twelve most recent imported state laboratory records
Substance	Published result	Sample date	Location / source
ARSENIC	3.3 UG/L	2026-06-29	NEW CLAY WELL / California DDW laboratory results
PERFLUORONONANOIC ACID (PFNA)	< 2.000000000 NG/L	2026-06-25	NORTH WELL 2 / California DDW laboratory results
PERFLUOROHEPTANESULFONIC ACID (PFHPS)	< 2.000000000 NG/L	2026-06-25	NORTH WELL 2 / California DDW laboratory results
PERFLUOROPENTANESULFONIC ACID (PFPES)	< 2.000000000 NG/L	2026-06-25	NORTH WELL 2 / California DDW laboratory results
PERFLUORODECANOIC ACID (PFDA)	< 2.000000000 NG/L	2026-06-25	NORTH WELL 2 / California DDW laboratory results
PERFLUOROHEPTANESULFONIC ACID (PFHPS)	< 2.000000000 NG/L	2026-06-25	NORTH WELL 2 / California DDW laboratory results
PERFLUORODECANE SULFONIC ACID 8:2 FTS	< 2.000000000 NG/L	2026-06-25	NORTH WELL 2 / California DDW laboratory results
11CL-PF3OUDS	< 2.000000000 NG/L	2026-06-25	NORTH WELL 2 / California DDW laboratory results
PERFLUOROHEXANE SULFONIC ACID 4:2 FTS	< 2.000000000 NG/L	2026-06-25	NORTH WELL 2 / California DDW laboratory results
PERFLUOROHEXANE SULFONIC ACID (PFHxS)	3.6 NG/L	2026-06-25	NORTH WELL 2 / California DDW laboratory results
HFPO-DA	< 2.000000000 NG/L	2026-06-25	NORTH WELL 2 / California DDW laboratory results
9CL-PF3ONS	< 2.000000000 NG/L	2026-06-25	NORTH WELL 2 / 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)

Rugge, Paul: 951-789-5155

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