MOSS BEACH, CA · San Mateo County

PILLAR RIDGE MHP (FORMER EL GRANADA MHP) Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of March 2, 2017. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.

If you are a resident looking for your current water provider, see water systems in San Mateo County, CA.

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): CA4110028
System type: Community Water System
Population served: 1,000
Service connections: 227
Ownership: privately owned
Water source: groundwater (wells)

Violation history

Monitoring, Check/Repeat/Confirmation
—
Trichloroethylene
June 27, 1997 – January 20, 1998
Archived
Monitoring, Check/Repeat/Confirmation
—
DICHLOROMETHANE
June 27, 1997 – January 20, 1998
Archived
Monitoring, Check/Repeat/Confirmation
—
cis-1,2-Dichloroethylene
June 27, 1997 – January 20, 1998
Archived

Archived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
June 27, 1997 – January 20, 1998	Monitoring, Check/Repeat/Confirmation	Trichloroethylene	—	Archived
June 27, 1997 – January 20, 1998	Monitoring, Check/Repeat/Confirmation	DICHLOROMETHANE	—	Archived
June 27, 1997 – January 20, 1998	Monitoring, Check/Repeat/Confirmation	cis-1,2-Dichloroethylene	—	Archived

Archived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

No enforcement actions on record for this system.

Last known contact on file (system is inactive)

BOWMAN, PAUL

650-728-3389

MOSS BEACH, CA 94038