SAN FRANCISCO, CA · Sonoma County

SIX ACRES WATER COMPANY Water System

Current status

1 open health-based violation on record as of July 4, 2026. See the violation history below for contaminant and status details.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace California’s official records. Always confirm current status with California before making decisions based on this information.

System facts

System ID (PWSID): CA4900608
System type: Community Water System
Population served: 66
Service connections: 22
Ownership: privately owned
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Treatment Technique (SWTR and GWR)
Health-based
Groundwater Rule
July 1, 2024 – July 31, 2024
Archived
Treatment Technique (SWTR and GWR)
Health-based
Groundwater Rule
June 1, 2024 – June 30, 2024
Archived
Treatment Technique (SWTR and GWR)
Health-based
Groundwater Rule
November 1, 2022 – November 30, 2022
Archived
Treatment Technique (SWTR and GWR)
Health-based
Groundwater Rule
October 1, 2022 – October 31, 2022
Archived
Treatment Technique (SWTR and GWR)
Health-based
Groundwater Rule
September 1, 2022 – September 30, 2022
Archived
Treatment Technique (SWTR and GWR)
Health-based
Groundwater Rule
August 1, 2021 – August 31, 2021
Archived
Monitoring, Regular
—
Nitrate
January 1, 2021 – December 31, 2021
Resolved
Failure to Filter (SWTR)
Health-based
Surface Water Treatment Rule
July 29, 2020
Addressed
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 2015 – November 30, 2015
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
Benzene
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
Toluene
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
Styrene
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
Atrazine
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
Dalapon
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
Dinoseb
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
Diquat
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
Endothall
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
Pentachlorophenol
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
Picloram
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
Simazine
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
Carbofuran
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2014 – December 31, 2014
Resolved
Notification, Public
—
No contaminant on record
September 1, 1984 – September 30, 1984
Archived
Notification, Public
—
No contaminant on record
August 1, 1984 – August 31, 1984
Archived
Notification, Public
—
No contaminant on record
July 1, 1984 – July 31, 1984
Archived
Notification, Public
—
No contaminant on record
May 1, 1983 – May 31, 1983
Archived
Notification, Public
—
No contaminant on record
October 1, 1982 – October 31, 1982
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
October 1, 1981 – September 30, 1982
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
October 30, 1980 – October 29, 1981
Archived

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the stateAddressed corrective action reported, pending final confirmation

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2024 – July 31, 2024	Treatment Technique (SWTR and GWR)	Groundwater Rule	Health-based	Archived
June 1, 2024 – June 30, 2024	Treatment Technique (SWTR and GWR)	Groundwater Rule	Health-based	Archived
November 1, 2022 – November 30, 2022	Treatment Technique (SWTR and GWR)	Groundwater Rule	Health-based	Archived
October 1, 2022 – October 31, 2022	Treatment Technique (SWTR and GWR)	Groundwater Rule	Health-based	Archived
September 1, 2022 – September 30, 2022	Treatment Technique (SWTR and GWR)	Groundwater Rule	Health-based	Archived
August 1, 2021 – August 31, 2021	Treatment Technique (SWTR and GWR)	Groundwater Rule	Health-based	Archived
January 1, 2021 – December 31, 2021	Monitoring, Regular	Nitrate	—	Resolved
July 29, 2020	Failure to Filter (SWTR)	Surface Water Treatment Rule	Health-based	Addressed
November 1, 2015 – November 30, 2015	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	Benzene	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	Toluene	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	Styrene	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	Atrazine	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	Dalapon	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	Dinoseb	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	Diquat	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	Endothall	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	Pentachlorophenol	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	Picloram	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	Simazine	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	Carbofuran	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
September 1, 1984 – September 30, 1984	Notification, Public	—	—	Archived
August 1, 1984 – August 31, 1984	Notification, Public	—	—	Archived
July 1, 1984 – July 31, 1984	Notification, Public	—	—	Archived
May 1, 1983 – May 31, 1983	Notification, Public	—	—	Archived
October 1, 1982 – October 31, 1982	Notification, Public	—	—	Archived
October 1, 1981 – September 30, 1982	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
October 30, 1980 – October 29, 1981	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the stateAddressed corrective action reported, pending final confirmation

Enforcement actions

March 8, 2024State Compliance achieved3 linked violations
February 9, 2023State Administrative/Compliance Order without penalty issued9 linked violations
July 17, 2015State Administrative/Compliance Order without penalty issued9 linked violations
January 31, 2013State Compliance achieved16 linked violations
June 13, 2007State Administrative/Compliance Order without penalty issued16 linked violations

Contact

NELSON, KEELY

415-231-5780

SAN FRANCISCO, CA 94133