Russian River County Water District

Published drinking-water records and contacts for Russian River County Water District. System CA4910008. Review sources and dates; not a real-time water assessment.

System ID: CA4910008
State or territory: CA
Published population served: 4150
System type (source code): CWS

Published records and dates

PFAS / lithium (EPA UCMR 5): 60 — 2025-04-15 – 2025-10-14
Lead and copper monitoring summaries: 46 — 1993-01-01 – 2024-12-31
California DDW laboratory results: 49 — 2026-01-15 – 2026-05-05

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	Z-1 Booster Pump Station / 1
4:2 FTS	< 0.003 µg/L	0.003 µg/L	2025-10-14	Z-1 Booster Pump Station / 1
6:2 FTS	< 0.005 µg/L	0.005 µg/L	2025-10-14	Z-1 Booster Pump Station / 1
8:2 FTS	< 0.005 µg/L	0.005 µg/L	2025-10-14	Z-1 Booster Pump Station / 1
9Cl-PF3ONS	< 0.002 µg/L	0.002 µg/L	2025-10-14	Z-1 Booster Pump Station / 1
ADONA	< 0.003 µg/L	0.003 µg/L	2025-10-14	Z-1 Booster Pump Station / 1
HFPO-DA	< 0.005 µg/L	0.005 µg/L	2025-10-14	Z-1 Booster Pump Station / 1
NEtFOSAA	< 0.005 µg/L	0.005 µg/L	2025-10-14	Z-1 Booster Pump Station / 1
NFDHA	< 0.02 µg/L	0.02 µg/L	2025-10-14	Z-1 Booster Pump Station / 1
NMeFOSAA	< 0.006 µg/L	0.006 µg/L	2025-10-14	Z-1 Booster Pump Station / 1
PFBA	< 0.005 µg/L	0.005 µg/L	2025-10-14	Z-1 Booster Pump Station / 1
PFBS	< 0.003 µg/L	0.003 µg/L	2025-10-14	Z-1 Booster Pump Station / 1
PFDA	< 0.003 µg/L	0.003 µg/L	2025-10-14	Z-1 Booster Pump Station / 1
PFDoA	< 0.003 µg/L	0.003 µg/L	2025-10-14	Z-1 Booster Pump Station / 1
PFEESA	< 0.003 µg/L	0.003 µg/L	2025-10-14	Z-1 Booster Pump Station / 1
PFHpA	< 0.003 µg/L	0.003 µg/L	2025-10-14	Z-1 Booster Pump Station / 1
PFHpS	< 0.003 µg/L	0.003 µg/L	2025-10-14	Z-1 Booster Pump Station / 1
PFHxA	< 0.003 µg/L	0.003 µg/L	2025-10-14	Z-1 Booster Pump Station / 1
PFHxS	< 0.003 µg/L	0.003 µg/L	2025-10-14	Z-1 Booster Pump Station / 1
PFMBA	< 0.003 µg/L	0.003 µg/L	2025-10-14	Z-1 Booster Pump Station / 1
PFMPA	< 0.004 µg/L	0.004 µg/L	2025-10-14	Z-1 Booster Pump Station / 1
PFNA	< 0.004 µg/L	0.004 µg/L	2025-10-14	Z-1 Booster Pump Station / 1
PFOA	< 0.004 µg/L	0.004 µg/L	2025-10-14	Z-1 Booster Pump Station / 1
PFOS	< 0.004 µg/L	0.004 µg/L	2025-10-14	Z-1 Booster Pump Station / 1
PFPeA	< 0.003 µg/L	0.003 µg/L	2025-10-14	Z-1 Booster Pump Station / 1
PFPeS	< 0.004 µg/L	0.004 µg/L	2025-10-14	Z-1 Booster Pump Station / 1
PFTA	< 0.008 µg/L	0.008 µg/L	2025-10-14	Z-1 Booster Pump Station / 1
PFTrDA	< 0.007 µg/L	0.007 µg/L	2025-10-14	Z-1 Booster Pump Station / 1
PFUnA	< 0.002 µg/L	0.002 µg/L	2025-10-14	Z-1 Booster Pump Station / 1
lithium	< 9 µg/L	9 µg/L	2025-10-14	Z-1 Booster Pump Station / 1

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)	2022-01-01 – 2024-12-31	2026Q3
Lead (PB90)	2019-01-01 – 2021-12-31	2026Q3
Lead (PB90)	2016-01-01 – 2018-12-31	2026Q3
Lead (PB90)	2013-01-01 – 2015-12-31	2026Q3
Lead (PB90)	2012-01-01 – 2012-12-31	2026Q3
Lead (PB90)	2011-01-01 – 2011-12-31	2026Q3
Lead (PB90)	2010-07-01 – 2010-12-31	2026Q3
Lead (PB90)	2008-07-01 – 2008-12-31	2026Q3

Twelve most recent imported state laboratory records
Substance	Published result	Sample date	Location / source
IRON	< 100.000000000 UG/L	2026-05-05	WELL 01 / California DDW laboratory results
PERFLUORODECANOIC ACID (PFDA)	< 1.600000000 NG/L	2026-04-22	WELL 02 / California DDW laboratory results
ADONA	< 1.600000000 NG/L	2026-04-22	WELL 02 / California DDW laboratory results
PERFLUOROHEXANOIC ACID (PFHXA)	< 1.600000000 NG/L	2026-04-22	WELL 01 / California DDW laboratory results
PERFLUOROCTANE SULFONIC ACID (PFOS)	< 1.600000000 NG/L	2026-04-22	WELL 02 / California DDW laboratory results
NMEFOSAA	< 1.600000000 NG/L	2026-04-22	WELL 02 / California DDW laboratory results
PERFLUOROHEXANE SULFONIC ACID (PFHxS)	< 1.600000000 NG/L	2026-04-22	WELL 02 / California DDW laboratory results
PERFLUORODECANOIC ACID (PFDA)	< 1.600000000 NG/L	2026-04-22	WELL 01 / California DDW laboratory results
PERFLUOROTETRADECANOIC ACID (PFTA)	< 1.600000000 NG/L	2026-04-22	WELL 02 / California DDW laboratory results
NETFOSAA	< 1.600000000 NG/L	2026-04-22	WELL 02 / California DDW laboratory results
PERFLUORONONANOIC ACID (PFNA)	< 1.600000000 NG/L	2026-04-22	WELL 01 / California DDW laboratory results
PERFLUOROHEPTANOIC ACID (PFHPA)	< 1.600000000 NG/L	2026-04-22	WELL 01 / 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
Miscellaneous Other Rules / Notification, Public	1988-12-01 – 1988-12-31	Archived	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)

Voet, Stephanie: 707-887-7735

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