Slvwd - Felton Water System

Published drinking-water records and contacts for Slvwd - Felton Water System. System CA4410002. Review sources and dates; not a real-time water assessment.

System ID: CA4410002
State or territory: CA
Published population served: 4340
System type (source code): CWS

Published records and dates

PFAS / lithium (EPA UCMR 5): 180 — 2025-03-11 – 2025-12-02
Lead and copper monitoring summaries: 29 — 1992-01-01 – 2026-12-31
California DDW laboratory results: 229 — 2026-01-12 – 2026-07-08

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	2025-12-02	Kirby Treatment Plant / EP004
4:2 FTS	< 0.003 µg/L	0.003 µg/L	2025-12-02	Kirby Treatment Plant / EP004
6:2 FTS	< 0.005 µg/L	0.005 µg/L	2025-12-02	Kirby Treatment Plant / EP004
8:2 FTS	< 0.005 µg/L	0.005 µg/L	2025-12-02	Kirby Treatment Plant / EP004
9Cl-PF3ONS	< 0.002 µg/L	0.002 µg/L	2025-12-02	Kirby Treatment Plant / EP004
ADONA	< 0.003 µg/L	0.003 µg/L	2025-12-02	Kirby Treatment Plant / EP004
HFPO-DA	< 0.005 µg/L	0.005 µg/L	2025-12-02	Kirby Treatment Plant / EP004
NEtFOSAA	< 0.005 µg/L	0.005 µg/L	2025-12-02	Kirby Treatment Plant / EP004
NFDHA	< 0.02 µg/L	0.02 µg/L	2025-12-02	Kirby Treatment Plant / EP004
NMeFOSAA	< 0.006 µg/L	0.006 µg/L	2025-12-02	Kirby Treatment Plant / EP004
PFBA	< 0.005 µg/L	0.005 µg/L	2025-12-02	Kirby Treatment Plant / EP004
PFBS	< 0.003 µg/L	0.003 µg/L	2025-12-02	Kirby Treatment Plant / EP004
PFDA	< 0.003 µg/L	0.003 µg/L	2025-12-02	Kirby Treatment Plant / EP004
PFDoA	< 0.003 µg/L	0.003 µg/L	2025-12-02	Kirby Treatment Plant / EP004
PFEESA	< 0.003 µg/L	0.003 µg/L	2025-12-02	Kirby Treatment Plant / EP004
PFHpA	< 0.003 µg/L	0.003 µg/L	2025-12-02	Kirby Treatment Plant / EP004
PFHpS	< 0.003 µg/L	0.003 µg/L	2025-12-02	Kirby Treatment Plant / EP004
PFHxA	< 0.003 µg/L	0.003 µg/L	2025-12-02	Kirby Treatment Plant / EP004
PFHxS	< 0.003 µg/L	0.003 µg/L	2025-12-02	Kirby Treatment Plant / EP004
PFMBA	< 0.003 µg/L	0.003 µg/L	2025-12-02	Kirby Treatment Plant / EP004
PFMPA	< 0.004 µg/L	0.004 µg/L	2025-12-02	Kirby Treatment Plant / EP004
PFNA	< 0.004 µg/L	0.004 µg/L	2025-12-02	Kirby Treatment Plant / EP004
PFOA	< 0.004 µg/L	0.004 µg/L	2025-12-02	Kirby Treatment Plant / EP004
PFOS	< 0.004 µg/L	0.004 µg/L	2025-12-02	Kirby Treatment Plant / EP004
PFPeA	< 0.003 µg/L	0.003 µg/L	2025-12-02	Kirby Treatment Plant / EP004
PFPeS	< 0.004 µg/L	0.004 µg/L	2025-12-02	Kirby Treatment Plant / EP004
PFTA	< 0.008 µg/L	0.008 µg/L	2025-12-02	Kirby Treatment Plant / EP004
PFTrDA	< 0.007 µg/L	0.007 µg/L	2025-12-02	Kirby Treatment Plant / EP004
PFUnA	< 0.002 µg/L	0.002 µg/L	2025-12-02	Kirby Treatment Plant / EP004
lithium	< 9 µg/L	9 µg/L	2025-12-02	Kirby Treatment Plant / EP004

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)	0.00095 mg/L	2024-01-01 – 2026-12-31	2026Q3
Lead (PB90)	0 mg/L	2021-01-01 – 2023-12-31	2026Q3
Lead (PB90)	0 mg/L	2018-01-01 – 2020-12-31	2026Q3
Lead (PB90)	0 mg/L	2015-01-01 – 2017-12-31	2026Q3
Lead (PB90)	0.0025 mg/L	2012-01-01 – 2014-12-31	2026Q3
Lead (PB90)	0.0055 mg/L	2009-01-01 – 2011-12-31	2026Q3
Lead (PB90)	0.007 mg/L	2008-01-01 – 2010-12-31	2026Q3
Lead (PB90)	0 mg/L	2005-01-01 – 2007-12-31	2026Q3

Twelve most recent imported state laboratory records
Substance	Published result	Sample date	Location / source
COPPER, FREE	100 UG/L	2026-07-08	LCR Tap Sample / California DDW laboratory results
LEAD	< 0.500000000 UG/L	2026-07-08	LCR Tap Sample / California DDW laboratory results
LEAD	< 0.500000000 UG/L	2026-07-07	LCR Tap Sample / California DDW laboratory results
LEAD	0.80 UG/L	2026-07-07	LCR Tap Sample / California DDW laboratory results
LEAD	< 0.500000000 UG/L	2026-07-07	LCR Tap Sample / California DDW laboratory results
COPPER, FREE	300 UG/L	2026-07-07	LCR Tap Sample / California DDW laboratory results
COPPER, FREE	130 UG/L	2026-07-07	LCR Tap Sample / California DDW laboratory results
LEAD	0.53 UG/L	2026-07-07	LCR Tap Sample / California DDW laboratory results
LEAD	< 0.500000000 UG/L	2026-07-07	LCR Tap Sample / California DDW laboratory results
COPPER, FREE	360 UG/L	2026-07-07	LCR Tap Sample / California DDW laboratory results
COPPER, FREE	150 UG/L	2026-07-07	LCR Tap Sample / California DDW laboratory results
COPPER, FREE	410 UG/L	2026-07-07	LCR 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

3 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)	2025-09-01 – 2025-09-30	Archived	No	2026Q3
Lead and Copper Rule Revisions / LSL Inventory	2024-10-17 – —	Unaddressed	Yes	2026Q3
Lead and Copper Rule Revisions / LSL Reporting	2024-10-17 – —	Unaddressed	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)

Lillion, Jason: 831-430-4624

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