GSWC-SAN DIMAS
Community Water System · California · SAN DIMAS
PWSID: CA1910142
Compliant
Population Served
56.5K
Service Connections
16.2K
Total Violations
5
Health-Based Violations
5
Lead & Copper Data
Lead Level
Caution3.20 ppb
Action Level: 15 ppb (EPA) · Sampled: 2026-12-31
015 ppb action level
Copper Level
No copper sampling data available
System Details
- Water Source
- Purchased Surface Water
- System Type
- Community Water System
- City
- SAN DIMAS
- ZIP Code
- 91773
- Counties Served
- Los Angeles
- Cities Served
- San Dimas
- Open Violations
- 0
- State
- California
Violation Summary
5
Total Violations
5
Health-Based
0
Open Now
Most recent violation: 1997-09-01
Explore California Water Quality
See all water systems, lead data, and violation trends for California.
Data source: EPA ECHO SDWIS Bulk Download (Jan 2026). PWSID: CA1910142.SafeWater Home