Petersburg Stp, City Of
East Route 123, Petersburg, IL 62675 · Menard County · Publicly Owned Treatment Works
- Average flow
- 0.31 MGD
- Design flow
- 1.25 MGD
- NPDES permit
- IL0022233
- Effective
- Permit expires
- April 2028
- Population served
- 2,960
- CWNS 2022
Petersburg Stp, City Of is a publicly owned wastewater treatment works in Petersburg, Menard County, Illinois treating an average of 0.31 million gallons per day against a permitted design capacity of 1.25 MGD, serving about 2,960 residents. It discharges under NPDES permit IL0022233 (effective), which expires in April 2028, with 77 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Petersburg Stp, City Of.
Available with a free Klarifi account
See the full treatment train at Petersburg Stp, City Of: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 77
- Effluent violations
- 77
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
2 verified contacts for Petersburg Stp, City Of, with validated emails and direct phone numbers.
Unlock 2 verified contacts
Names, validated emails and direct phone numbers for decision-makers at Petersburg Stp, City Of, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Illinois
Tallula · 7 mi away
0.04 MGD
Athens · 7 mi away
0.22 MGD
Ashland · 13 mi away
0.06 MGD
Mason City · 13 mi away
0.25 MGD
Easton · 15 mi away
0.14 MGD
Buffalo · 16 mi away
0.21 MGD
Springfield · 16 mi away
16.41 MGD
Williamsville · 17 mi away
0.22 MGD
Petersburg Stp, City Of: 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 September 11, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Sludge dewatering · Biological nutrient removal · all terms