City Of San Bernardino WRF
San Bernardino, CA · San Bernardino County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 33 MGD
- NPDES permit
- CA0105392
- Expired
- Permit expires
- December 2022
- Population served
- 343,107
- CWNS 2022
City Of San Bernardino WRF is a publicly owned wastewater treatment works in San Bernardino, San Bernardino County, California, serving about 343,107 residents. Treatment on site includes clarifiers, carrousels / oxidation ditches, biogas silos. It discharges under NPDES permit CA0105392 (expired), which expires in December 2022, with 115 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Compliance snapshot (last 3 years)
- Total violations
- 115
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
6 verified contacts for City Of San Bernardino WRF, with validated emails and direct phone numbers.
Unlock 6 verified contacts (3 more than shown)
Names, validated emails and direct phone numbers for decision-makers at City Of San Bernardino WRF, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in California
Colton · 3 mi away
—
Colton · 5 mi away
21.06 MGD
Crestline · 12 mi away
8.3 MGD
Riverside · 12 mi away
27.72 MGD
Yucaipa · 13 mi away
3.87 MGD
Beaumont · 20 mi away
3.54 MGD
Corona · 21 mi away
8.54 MGD
Corona · 22 mi away
7.64 MGD
City Of San Bernardino WRF: frequently asked questions
Sources and methodology
Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.
Data refreshed September 11, 2026; facility record last updated March 26, 2025.