Public water system record

City of Pleasanton

Serves Pleasanton, Sunol and Hayward, Alameda County, CA · 76,689 people served

Federal records show no health-based violations and no monitoring or reporting issues for City of Pleasanton in the last ten years.

  • CA0110008
  • PLEASANTON
  • CA
  • 76,689 served

System profile

Source water Purchased surface water
ZIP 94566
EPA system ID CA0110008

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

  • City of Pleasanton buys its water from Zone 7 Water Agency.
  • Record on file since 1995, with 2 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 21,668 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 1995

EPA's records for City of Pleasanton go back to 1995. Before October 19, 2016 they list 2 health-based violations (2 resolved) and no monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 2 0

Most recent health-based violation before October 19, 2016: Total Coliform, began December 1995, Resolved.

Show all 2 health-based violations before October 19, 2016
Contaminant Start date Status
Total Coliform
Contaminant limit exceeded
Dec 1, 1995 Resolved
Total Coliform
Contaminant limit exceeded
Nov 1, 1995 Resolved

Where the water comes from

City of Pleasanton buys its water from Zone 7 Water Agency. EPA also lists 3 wells, all for emergency, seasonal or other part-time use.

Buys water from

Annual water quality report

City of Pleasanton 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.