Walnut Creek, CA · Contra Costa County
Water quality in Walnut Creek, CA
1 community water system are based in Walnut Creek, CA, collectively serving 45 people. See per-utility violations, contaminants, and lead service line status.
At a glance
- Community systems
- 1
- People served
- 45
- Groundwater systems
- 100%
- 1 systems
- Surface water systems
- 0%
- 0 systems
Community water systems based in Walnut Creek
Systems whose EPA-filed administrative city is Walnut Creek, sorted by population served. Regional authorities that serve Walnut Creek but are based elsewhere are not listed here; check the ZIP lookup for a service-area-based answer.
- 1. CASA MEDANOS WATER SYSTEM
Contra Costa · PWSID CA0707594
45 served