California Water Service Co.-Travis Afb

PWSID: CA4810701

No active violations
This system has no unresolved violations. The most recent violation on record was 2015-07-01.

System Details

Population Served18,111
Service Connections1
Water SourceSurface Water Purchased
System TypeCommunity Water System
OwnerFederal
StatusActive
CitySan Jose
EPA ZIP on File95112

Lead & Copper Testing

ContaminantLevelEPA Action LevelStatus
Lead (90th percentile)0.0017 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0000 mg/L0.015 mg/LBelow Action Level
Lead (90th percentile)0.0000 mg/L0.015 mg/LBelow Action Level

Violation History (2 total)

ContaminantViolationDateHealth-BasedStatus
2950MCL
Measured: 0.0900 MG/L (limit: 0.0800 MG/L)
2015-07-01YesReturned to Compliance
2950MCL
Measured: 0.0900 MG/L (limit: 0.0800 MG/L)
2015-07-01YesReturned to Compliance

Understanding This Water System's Record

California Water Service Co.-Travis Afb is a community water system water system that draws from surface water purchased sources and serves a population of 18,111 in San Jose, California. This page shows its complete compliance history as reported to the EPA's Safe Drinking Water Information System (SDWIS), the federal database that tracks every public water system in the United States.

What Do These Violations Mean?

Health-based violations mean the system exceeded an EPA maximum contaminant level (MCL) or failed to provide required treatment. These indicate potential health risks from contaminants like lead, arsenic, bacteria, nitrates, or disinfection byproducts. Non-health-based violations involve monitoring, reporting, or procedural requirements — the system missed a testing deadline or failed to notify customers, but contaminant levels were not necessarily unsafe.

What Should You Do?

Your water utility is required to publish an annual Consumer Confidence Report (CCR) that details test results and any violations. If your system has active health-based violations, consider a certified water filter rated for the specific contaminants involved. The contaminant guides on this site explain health risks and filter options for common pollutants. For the most current results, contact your water utility directly — EPA data can lag weeks or months behind real-time testing.