Colton/san Bernardino Stp, Rix
Colton, CA · San Bernardino County · Publicly Owned Treatment Works
- Average flow
- 21.06 MGD
- Design flow
- 40 MGD
- NPDES permit
- CA8000304
- Administratively continued
- Permit expires
- July 2018
- Population served
- 403,461
- CWNS 2022
Colton/san Bernardino Stp, Rix is a publicly owned wastewater treatment works in Colton, San Bernardino County, California treating an average of 21.06 million gallons per day against a permitted design capacity of 40 MGD, serving about 403,461 residents. Treatment on site includes aerated lagoons. It discharges under NPDES permit CA8000304 (administratively continued), which expires in July 2018, with 0 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Aerated lagoons
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Compliance snapshot (last 3 years)
- Total violations
- 0
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Colton/san Bernardino Stp, Rix.
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Nearby wastewater treatment plants in California
Colton · 1 mi away
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San Bernardino · 5 mi away
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Riverside · 8 mi away
27.72 MGD
Crestline · 15 mi away
8.3 MGD
Corona · 16 mi away
8.54 MGD
Yucaipa · 16 mi away
3.87 MGD
Corona · 18 mi away
7.64 MGD
Chino · 19 mi away
6.4 MGD
Colton/san Bernardino Stp, Rix: 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 August 18, 2026.