15402 N US Highway 301, Thonotosassa, FL · Hillsborough County · Publicly Owned Treatment Works
Hillsborough River State Park WWTP is a publicly owned wastewater treatment works in Thonotosassa, Hillsborough County, Florida treating an average of 0.04 million gallons per day against a permitted design capacity of 0.04 MGD. It discharges under NPDES permit FLA012610 (effective), which expires in August 2030.
One treatment structure or unit process identified at Hillsborough River State Park WWTP.
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See the full treatment train at Hillsborough River State Park WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
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Plant City · 7 mi away
0.02 MGD
Zephyrhills · 7 mi away
6 MGD
Zephyrhills · 7 mi away
4.5 MGD
Plant City · 10 mi away
4.47 MGD
Dover · 11 mi away
0.009 MGD
Dade City · 12 mi away
0.0099 MGD
Lutz · 14 mi away
0.01 MGD
Lakeland · 14 mi away
3 MGD
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 · FOG · Equalization tank · all terms