Drinking Water Compliance OS

MONTARA, CA · San Mateo County

MONTARA WATER AND SANITARY 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)
CA4110010
System type
Community Water System
Population served
6,078
Service connections
1,698
Ownership
local government
Water source
surface water (rivers, lakes, or reservoirs)

Violation history

No violations on record for this system.

Enforcement actions

Contact

HELDMAIER, CLEMENS

650-728-3358

MONTARA, CA 94037