Herrick Stp, Village Of
PO Box 162, Herrick, IL 62431 · Shelby County · Publicly Owned Treatment Works
- Average flow
- 0.04 MGD
- Design flow
- 0.26 MGD
- NPDES permit
- ILG580147
- Effective
- Permit expires
- May 2027
- Population served
- 499
- CWNS 2022
Herrick Stp, Village Of is a publicly owned wastewater treatment works in Herrick, Shelby County, Illinois treating an average of 0.04 million gallons per day against a permitted design capacity of 0.26 MGD, serving about 499 residents. It discharges under NPDES permit ILG580147 (effective), which expires in May 2027, with 14 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Herrick Stp, Village Of.
Available with a free Klarifi account
See the full treatment train at Herrick Stp, Village Of: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 14
- Effluent violations
- 14
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Herrick Stp, Village Of.
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Nearby wastewater treatment plants in Illinois
Cowden · 6 mi away
—
Ramsey · 9 mi away
0.17 MGD
Tower Hill · 11 mi away
0.05 MGD
Pana · 11 mi away
1.25 MGD
Shelbyville · 15 mi away
0.91 MGD
Brownstown · 15 mi away
0.04 MGD
Ohlman · 16 mi away
0.02 MGD
Altamont · 16 mi away
0.13 MGD
Herrick 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 11, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Centrate · Ozonation · all terms