CHINO HILLS, CITY OF
Community Water System · California · CHINO HILLS
PWSID: CA3610036
Compliant
Population Served
76.4K
Service Connections
21.8K
Total Violations
43
Health-Based Violations
5
Lead & Copper Data
Lead Level
Safe0.00 ppb
Action Level: 15 ppb (EPA) · Sampled: 2024-12-31
015 ppb action level
Copper Level
No copper sampling data available
System Details
- Water Source
- Purchased Surface Water
- System Type
- Community Water System
- City
- CHINO HILLS
- ZIP Code
- 91709
- Counties Served
- San Bernardino
- Cities Served
- CHINO HILLS
- Open Violations
- 0
- State
- California
Violation Summary
43
Total Violations
5
Health-Based
0
Open Now
Most recent violation: 1994-07-01
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: CA3610036.SafeWater Home