CHINO HILLS, CA · San Bernardino County
CHINO HILLS, CITY OF Water System
Current status
No open violations on record as of July 4, 2026.
This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace California’s official records. Always confirm current status with California before making decisions based on this information.
System facts
- System ID (PWSID)
- CA3610036
- System type
- Community Water System
- Population served
- 76,414
- Service connections
- 21,799
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
Violation history
Maximum Contaminant Level Violation, Single Sample
Health-basedNitrate
September 1, 1984 – September 30, 1984
Archived
Archived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| September 1, 1984 – September 30, 1984 | Maximum Contaminant Level Violation, Single Sample | Nitrate | Health-based | Archived |
Archived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- October 7, 1994State Other5 linked violations
Contact
WILEY, MARK
909-364-2854
CHINO HILLS, CA 91709