Trenton STP
North Oak Street, Trenton, IL 62293 · Clinton County · Publicly Owned Treatment Works
- Average flow
- 0.11 MGD
- Design flow
- 1.25 MGD
- NPDES permit
- IL0026701
- Effective
- Permit expires
- March 2028
- Population served
- 2,673
- CWNS 2022
Trenton STP is a publicly owned wastewater treatment works in Trenton, Clinton County, Illinois treating an average of 0.11 million gallons per day against a permitted design capacity of 1.25 MGD, serving about 2,673 residents. It discharges under NPDES permit IL0026701 (effective), which expires in March 2028, with 9 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Trenton STP.
Available with a free Klarifi account
See the full treatment train at Trenton STP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 9
- Effluent violations
- 9
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Trenton STP.
No verified contacts on file yet
Klarifi verifies plant and municipal decision-makers continuously. Start a free trial to browse contacts at nearby plants and flag this one for verification.
Nearby wastewater treatment plants in Illinois
Summerfield · 4 mi away
0.04 MGD
Aviston · 5 mi away
0.09 MGD
New Baden · 5 mi away
0.32 MGD
Albers · 6 mi away
0.08 MGD
Lebanon · 6 mi away
0.58 MGD
Albers · 7 mi away
0.04 MGD
Highland · 8 mi away
5.55 MGD
Germantown · 9 mi away
0.11 MGD
Trenton STP: 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 5, 2026; facility record last updated September 11, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Lift station · Sludge dewatering · all terms