Borrego Wd

Published drinking-water records and contacts for Borrego Wd. System CA3710036. Review sources and dates; not a real-time water assessment.

System ID: CA3710036
State or territory: CA
Published population served: 3429
System type (source code): CWS

Published records and dates

PFAS / lithium (EPA UCMR 5): 540 — 2024-05-13 – 2025-10-14
Lead and copper monitoring summaries: 8 — 2008-01-01 – 2027-12-31
California DDW laboratory results: 589 — 2026-01-20 – 2026-06-24

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	2025-10-14	Borrego WD / 036
4:2 FTS	< 0.003 µg/L	0.003 µg/L	2025-10-14	Borrego WD / 036
6:2 FTS	< 0.005 µg/L	0.005 µg/L	2025-10-14	Borrego WD / 036
8:2 FTS	< 0.005 µg/L	0.005 µg/L	2025-10-14	Borrego WD / 036
9Cl-PF3ONS	< 0.002 µg/L	0.002 µg/L	2025-10-14	Borrego WD / 036
ADONA	< 0.003 µg/L	0.003 µg/L	2025-10-14	Borrego WD / 036
HFPO-DA	< 0.005 µg/L	0.005 µg/L	2025-10-14	Borrego WD / 036
NEtFOSAA	< 0.005 µg/L	0.005 µg/L	2025-10-14	Borrego WD / 036
NFDHA	< 0.02 µg/L	0.02 µg/L	2025-10-14	Borrego WD / 036
NMeFOSAA	< 0.006 µg/L	0.006 µg/L	2025-10-14	Borrego WD / 036
PFBA	< 0.005 µg/L	0.005 µg/L	2025-10-14	Borrego WD / 036
PFBS	< 0.003 µg/L	0.003 µg/L	2025-10-14	Borrego WD / 036
PFDA	< 0.003 µg/L	0.003 µg/L	2025-10-14	Borrego WD / 036
PFDoA	< 0.003 µg/L	0.003 µg/L	2025-10-14	Borrego WD / 036
PFEESA	< 0.003 µg/L	0.003 µg/L	2025-10-14	Borrego WD / 036
PFHpA	< 0.003 µg/L	0.003 µg/L	2025-10-14	Borrego WD / 036
PFHpS	< 0.003 µg/L	0.003 µg/L	2025-10-14	Borrego WD / 036
PFHxA	< 0.003 µg/L	0.003 µg/L	2025-10-14	Borrego WD / 036
PFHxS	< 0.003 µg/L	0.003 µg/L	2025-10-14	Borrego WD / 036
PFMBA	< 0.003 µg/L	0.003 µg/L	2025-10-14	Borrego WD / 036
PFMPA	< 0.004 µg/L	0.004 µg/L	2025-10-14	Borrego WD / 036
PFNA	< 0.004 µg/L	0.004 µg/L	2025-10-14	Borrego WD / 036
PFOA	< 0.004 µg/L	0.004 µg/L	2025-10-14	Borrego WD / 036
PFOS	< 0.004 µg/L	0.004 µg/L	2025-10-14	Borrego WD / 036
PFPeA	< 0.003 µg/L	0.003 µg/L	2025-10-14	Borrego WD / 036
PFPeS	< 0.004 µg/L	0.004 µg/L	2025-10-14	Borrego WD / 036
PFTA	< 0.008 µg/L	0.008 µg/L	2025-10-14	Borrego WD / 036
PFTrDA	< 0.007 µg/L	0.007 µg/L	2025-10-14	Borrego WD / 036
PFUnA	< 0.002 µg/L	0.002 µg/L	2025-10-14	Borrego WD / 036
lithium	< 9 µg/L	9 µg/L	2025-10-14	Borrego WD / 036

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)	2025-01-01 – 2027-12-31	2026Q3
Lead (PB90)	2023-01-01 – 2025-12-31	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)	2014-01-01 – 2016-12-31	2026Q3
Lead (PB90)	2011-01-01 – 2013-12-31	2026Q3
Lead (PB90)	2008-01-01 – 2010-12-31	2026Q3

Twelve most recent imported state laboratory records
Substance	Published result	Sample date	Location / source
TOTAL HALOACETIC ACIDS (HAA5)	< 6.000000000 UG/L	2026-06-24	DBPR Sample / California DDW laboratory results
CHLOROFORM	< 1.000000000 UG/L	2026-06-24	DBPR Sample / California DDW laboratory results
TRICHLOROACETIC ACID	< 1.000000000 UG/L	2026-06-24	DBPR Sample / California DDW laboratory results
DIBROMOACETIC ACID	< 1.000000000 UG/L	2026-06-24	DBPR Sample / California DDW laboratory results
BROMODICHLOROMETHANE	< 1.000000000 UG/L	2026-06-24	DBPR Sample / California DDW laboratory results
TRICHLOROACETIC ACID	< 1.000000000 UG/L	2026-06-24	DBPR Sample / California DDW laboratory results
MONOBROMOACETIC ACID	< 1.000000000 UG/L	2026-06-24	DBPR Sample / California DDW laboratory results
BROMOFORM	8.5 UG/L	2026-06-24	DBPR Sample / California DDW laboratory results
TTHM	6.4 UG/L	2026-06-24	DBPR Sample / California DDW laboratory results
DIBROMOCHLOROMETHANE	2.6 UG/L	2026-06-24	DBPR Sample / California DDW laboratory results
DIBROMOCHLOROMETHANE	3.6 UG/L	2026-06-24	DBPR Sample / California DDW laboratory results
MONOBROMOACETIC ACID	< 1.000000000 UG/L	2026-06-24	DBPR 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 / record	Period	Recorded status	Health-based (EPA classification)	Source quarter
Revised Total Coliform Rule / Monitoring, Routine (RTCR)	2024-02-01 – 2024-02-29	Resolved	No	2026Q3

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)

Poole, Geoff: 760-767-5806

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