Rockton Stp, Village Of
718 W Union St, Rockton, IL 61072 · Winnebago County · Publicly Owned Treatment Works
- Average flow
- 0.35 MGD
- Design flow
- 1.63 MGD
- NPDES permit
- IL0030791
- Effective
- Permit expires
- May 2027
- Population served
- 7,368
- CWNS 2022
Rockton Stp, Village Of is a publicly owned wastewater treatment works in Rockton, Winnebago County, Illinois treating an average of 0.35 million gallons per day against a permitted design capacity of 1.63 MGD, serving about 7,368 residents. It discharges under NPDES permit IL0030791 (effective), which expires in May 2027, with 3 recorded violations in the last three years.
Treatment technology
2 treatment structures and unit processes identified at Rockton Stp, Village Of.
Available with a free Klarifi account
See the full treatment train at Rockton Stp, Village Of: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 3
- Effluent violations
- 3
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
3 verified contacts for Rockton Stp, Village Of, with validated emails and direct phone numbers.
Unlock 3 verified contacts
Names, validated emails and direct phone numbers for decision-makers at Rockton Stp, Village Of, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Illinois
Durand · 12 mi away
0.1 MGD
Poplar Grove · 14 mi away
0.2 MGD
Poplar Grove · 15 mi away
0.3 MGD
Pecatonica · 17 mi away
0.18 MGD
Capron · 18 mi away
0.19 MGD
Davis · 18 mi away
0.08 MGD
Rock City · 20 mi away
0.02 MGD
Seward · 21 mi away
0.02 MGD
Rockton Stp, Village 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 15, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · WWTP · Biosolids · all terms