COUNTY WATER-SYSTEM LEDGER
Yolo, California
EPA’s September 2026 export lists 6 active community water systems serving Yolo, California, with 1 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 Yolo, California
EPA associates 6 covered systems with Yolo, California; their reported population-served values total 242,579 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 |
|---|---|---|---|
| City Of DavisCA5710001 | 67,457 | Surface water purchased | No current violation flagged |
| City Of WoodlandCA5710006 | 61,462 | Surface water purchased | No current violation flagged |
| City Of West SacramentoCA5710003 | 53,355 | Surface water | Current health-based flag |
| Uc - DavisCA5710009 | 49,616 | Surface water purchased | No current violation flagged |
| City Of WintersCA5710005 | 7,115 | Ground water | No current violation flagged |
| Esparto C.S.D.CA5710007 | 3,574 | Ground water | No current violation flagged |
02 / SOURCE MIX
Primary water sources for Yolo, California
EPA classifies 6 systems serving Yolo, California across 3 primary-source categories; Surface water purchased is the largest category with 3 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.