Payson STP
North 350th Ave & E 130th St, Payson, IL 62360 · Adams County · Publicly Owned Treatment Works
- Average flow
- 0.04 MGD
- Design flow
- 0.55 MGD
- NPDES permit
- IL0030554
- Effective
- Permit expires
- May 2031
- Population served
- 1,061
- CWNS 2022
Payson STP is a publicly owned wastewater treatment works in Payson, Adams County, Illinois treating an average of 0.04 million gallons per day against a permitted design capacity of 0.55 MGD, serving about 1,061 residents. It discharges under NPDES permit IL0030554 (effective), which expires in May 2031, with 1 recorded violation in the last three years.
Treatment technology
One treatment structure or unit process identified at Payson STP.
Available with a free Klarifi account
See the full treatment train at Payson STP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 1
- Effluent violations
- 1
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Payson STP.
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Nearby wastewater treatment plants in Illinois
Plainville · 5 mi away
0.03 MGD
Hull · 8 mi away
0.18 MGD
Kinderhook · 9 mi away
0.03 MGD
Liberty · 10 mi away
0.04 MGD
New Canton · 15 mi away
0.07 MGD
Camp Point · 19 mi away
0.25 MGD
Mendon · 19 mi away
0.03 MGD
Clayton · 22 mi away
0.02 MGD
Payson 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 26, 2026; facility record last updated March 7, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Significant industrial user · WWTP · all terms