St. Petersburg, City Of - Southwest WRF
3800 54th Ave S, St Petersburg, FL · Pinellas County · Publicly Owned Treatment Works
- Average flow
- 20 MGD
- Design flow
- 20 MGD
- NPDES permit
- FLA128848
- Effective
- Permit expires
- June 2028
- Population served
- —
- CWNS 2022
St. Petersburg, City Of - Southwest WRF is a publicly owned wastewater treatment works in St Petersburg, Pinellas County, Florida treating an average of 20 million gallons per day against a permitted design capacity of 20 MGD. It discharges under NPDES permit FLA128848 (effective), which expires in June 2028.
Treatment technology
3 treatment structures and unit processes identified at St. Petersburg, City Of - Southwest WRF.
Available with a free Klarifi account
See the full treatment train at St. Petersburg, City Of - Southwest WRF: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- —
- Effluent violations
- —
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for St. Petersburg, City Of - Southwest WRF, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at St. Petersburg, City Of - Southwest WRF, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Florida
St Petersburg · 4 mi away
56 MGD
St Petersburg · 6 mi away
20 MGD
St Petersburg · 9 mi away
16 MGD
Palmetto · 14 mi away
1.17 MGD
Palmetto · 16 mi away
7.5 MGD
Clearwater · 17 mi away
2.2 MGD
Bradenton · 17 mi away
7.02 MGD
Bradenton · 19 mi away
15 MGD
St. Petersburg, City Of - Southwest 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 October 26, 2026; facility record last updated October 22, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Ozonation · Activated sludge · all terms