Oceanside Ocean Outfall
Oceanside, CA · San Diego County · Publicly Owned Treatment Works
- Average flow
- 10.7 MGD
- Design flow
- 15.4 MGD
- NPDES permit
- CA0107433
- Expired
- Permit expires
- March 2025
- Population served
- 38,102
- CWNS 2022
Oceanside Ocean Outfall is a publicly owned wastewater treatment plant in Oceanside, San Diego County, California treating an average of 10.7 million gallons per day against a permitted design capacity of 15.4 MGD, serving about 38,102 residents. Treatment on site includes clarifiers, biogas silos. It discharges under NPDES permit CA0107433 (expired), which expires in March 2025, with 5 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
- 5
- Effluent violations
- 5
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Capital improvement projects in Oceanside
Oceanside's capital improvement plan lists 51 water, sewer and wastewater line items worth $463M starting 2024–2028. The largest budgeted items are shown here.
All water and sewer capital projects in Oceanside →
| Project | Budget | Years |
|---|---|---|
| Buccaneer Lift Station | $75,906,355 | 2024–2028 |
| Well Expansion and Brine Minimization Project | $33,004,791 | 2024–2028 |
| Land Outfall | $27,516,473 | 2024–2029 |
| OMG Force Main | $26,945,640 | 2024–2027 |
| OMG Lift Station (Former El Corazon Lift Station) | $26,296,502 | 2024–2027 |
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
4 verified contacts for Oceanside Ocean Outfall, with validated emails and direct phone numbers.
Unlock 4 verified contacts (1 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Oceanside Ocean Outfall, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in California
Carlsbad · 5 mi away
23.78 MGD
Cardiff · 13 mi away
1.06 MGD
Fallbrook · 14 mi away
1.07 MGD
Escondido · 16 mi away
7.8 MGD
Dana Point · 27 mi away
11.47 MGD
Santee · 30 mi away
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Lake Elsinore · 35 mi away
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Lake Elsinore · 35 mi away
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Oceanside Ocean Outfall: 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 February 16, 2025.