Public water system record

Menlo Park Municipal Water

Serves Menlo Park, San Mateo County, CA · 22,362 people served

Federal records show no health-based violations and no monitoring or reporting issues for Menlo Park Municipal Water in the last ten years.

  • CA4110017
  • MENLO PARK
  • CA
  • 22,362 served

System profile

Source water Purchased surface water
ZIP 94025
EPA system ID CA4110017

Verify this system on EPA ECHO →

Health-based violations, last 10 years
0
Resolved
0
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
0

Key facts

  • Menlo Park Municipal Water buys its water from San Francisco Regional Water System and Sfpuc City Distribution Division.
  • Most recent formal enforcement: compliance order (no penalty) by California, April 2015.
  • Record on file since 2015, with 1 health-based violation before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 4,141 service lines.

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

None since October 2016, and no monitoring or reporting violations either.

Full record since 2015

EPA's records for Menlo Park Municipal Water go back to 2015. Before October 19, 2016 they list 1 health-based violation (1 resolved) and no monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
2010 to October 18, 2016 1 0

Most recent health-based violation before October 19, 2016: Surface Water Treatment Rule, began March 2015, Resolved.

Show the health-based violation before October 19, 2016
Contaminant Start date Status
Surface Water Treatment Rule
Treatment technique failure
Mar 1, 2015 Resolved

Enforcement actions

California regulators took 1 formal enforcement action against Menlo Park Municipal Water in 2015. The most recent was a compliance order (no penalty) in April 2015.

Date By Action Violations covered
Apr 21, 2015 California Compliance order (no penalty) 1 violation (1 health-based): Surface Water Treatment Rule

Where the water comes from

Menlo Park Municipal Water buys its water from San Francisco Regional Water System and Sfpuc City Distribution Division. EPA also lists 1 well, all for emergency, seasonal or other part-time use. 1 other public water system has an emergency connection to Menlo Park Municipal Water.

Buys water from

Annual water quality report

Menlo Park Municipal Water must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Systems serving 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by California.