COUNTY WATER-SYSTEM LEDGER
Alameda, California
EPA’s September 2026 export lists 7 active community water systems serving Alameda, California, with 0 current-violation flags and 0 serious-violator flags among the covered systems.
Source: EPA SDWIS system-search export · Active community systems serving 2,500+ people · Snapshot 13 Sep 2026
01 / SYSTEMS
Water systems serving Alameda, California
EPA associates 7 covered systems with Alameda, California; their reported population-served values total 2,224,525 and may overlap.
Ordered by reported population served. Open any record for separate health, monitoring, notice, other, and serious-violator flags.
| Water system | Population served | Primary source | Current export status |
|---|---|---|---|
| East Bay MudCA0110005 | 1,442,800 | Surface water | No current violation flagged |
| Alameda County Water DistrictCA0110001 | 344,000 | Surface water | No current violation flagged |
| City Of HaywardCA0110006 | 162,954 | Surface water purchased | No current violation flagged |
| Dublin San Ramon Services DistrictCA0110009 | 98,776 | Surface water purchased | No current violation flagged |
| City Of PleasantonCA0110008 | 76,689 | Surface water purchased | No current violation flagged |
| California Water Service - LivermoreCA0110003 | 60,414 | Surface water purchased | No current violation flagged |
| City Of LivermoreCA0110011 | 38,892 | Surface water purchased | No current violation flagged |
02 / SOURCE MIX
Primary water sources for Alameda, California
EPA classifies 7 systems serving Alameda, California across 2 primary-source categories; Surface water is the largest category with 2 systems.
It is the sum of each listed system's reported population served, not a census estimate. Service areas can overlap and some systems list multiple cities or counties.