Stockton Rwcf
Stockton, CA · San Joaquin County · Publicly Owned Treatment Works
- Average flow
- 29.2 MGD
- Design flow
- 55 MGD
- NPDES permit
- CA0079138
- Effective
- Permit expires
- July 2030
- Population served
- 335,503
- CWNS 2022
Stockton Rwcf is a publicly owned wastewater treatment plant in Stockton, San Joaquin County, California treating an average of 29.2 million gallons per day against a permitted design capacity of 55 MGD, serving about 335,503 residents. Treatment on site includes clarifiers, uncovered lagoons, biogas silos. It discharges under NPDES permit CA0079138 (effective), which expires in July 2030, with 57 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
- 57
- Effluent violations
- 39
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Capital improvement projects in Stockton
Stockton's capital improvement plan lists 26 water, sewer and wastewater line items worth $98M starting 2025–2026. The largest budgeted items are shown here.
All water and sewer capital projects in Stockton →
| Project | Budget | Years |
|---|---|---|
| Water Field Office Remodel (DWTP-Campus Improvements) | $24,500,000 | 2025–2029 |
| Northeast Reservoir and Associated Pump Station | $15,800,000 | 2025–2028 |
| Advanced Metering Infrastructure | $12,000,000 | 2025–2028 |
| Cannery Park Water Transmission Reimbursement | $7,000,000 | 2025–2027 |
| Eight Mile Road Water Line Reimbursement | $5,500,000 | 2025–2027 |
Full project details — scope, funding source, engineering consultant and the decision-makers behind each project — are available in Klarifi, along with similar wastewater capital projects in other cities.
Key contacts
1 verified contact for Stockton Rwcf, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Stockton Rwcf, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in California
Manteca · 10 mi away
5.18 MGD
Lodi · 11 mi away
—
Tracy · 13 mi away
8.9 MGD
Discovery Bay · 14 mi away
1.01 MGD
Mountain House · 15 mi away
1.74 MGD
Brentwood · 20 mi away
1.46 MGD
Oakley · 21 mi away
2.71 MGD
Rio Vista · 25 mi away
0.5 MGD
Stockton Rwcf: 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 January 29, 2025.