LAYTONVILLE, CA · Mendocino County

LAYTONVILLE COUNTY WATER DISTRICT Water System

Current status

No open violations on record as of July 4, 2026.

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): CA2310011
System type: Community Water System
Population served: 1,152
Service connections: 422
Ownership: local government
Water source: groundwater (wells)

Violation history

Maximum Contaminant Level Violation, Average
Health-based
Arsenic
July 1, 2008 – September 30, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
October 1, 2007 – December 31, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
July 1, 2007 – September 30, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
April 1, 2007 – June 30, 2007
Resolved
Monitoring, Regular
—
Nitrate
November 2, 2006 – November 2, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
January 1, 2006 – March 31, 2006
Resolved
Notification, Public
—
No contaminant on record
April 1, 1989 – April 30, 1989
Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2008 – September 30, 2008	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
October 1, 2007 – December 31, 2007	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
July 1, 2007 – September 30, 2007	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
April 1, 2007 – June 30, 2007	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
November 2, 2006 – November 2, 2007	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2006 – March 31, 2006	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
April 1, 1989 – April 30, 1989	Notification, Public	—	—	Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

June 28, 2006State Formal Notice of Violation issued26 linked violations

Contact

ATHEY, TRACEY

707-984-6444

LAYTONVILLE, CA 95454