Holiday Shores Sanitary District STP
97 Holiday Dam Road, Edwardsville, IL 62025 · Madison County · Publicly Owned Treatment Works
- Average flow
- 0.19 MGD
- Design flow
- 1 MGD
- NPDES permit
- ILG580193
- Effective
- Permit expires
- May 2027
- Population served
- 2,840
- CWNS 2022
Holiday Shores Sanitary District STP is a publicly owned wastewater treatment works in Edwardsville, Madison County, Illinois treating an average of 0.19 million gallons per day against a permitted design capacity of 1 MGD, serving about 2,840 residents. It discharges under NPDES permit ILG580193 (effective), which expires in May 2027, with 94 recorded violations in the last three years.
Treatment technology
Treatment structures and unit processes at Holiday Shores Sanitary District STP.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 94
- Effluent violations
- 88
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Holiday Shores Sanitary District STP.
No verified contacts on file yet
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Nearby wastewater treatment plants in Illinois
Hamel · 6 mi away
0.08 MGD
Worden · 6 mi away
0.06 MGD
Bunker Hill · 8 mi away
0.27 MGD
Edwardsville · 9 mi away
3.11 MGD
Roxana · 10 mi away
0.18 MGD
East Alton · 10 mi away
0.59 MGD
Alton · 10 mi away
7.8 MGD
Staunton · 11 mi away
0.83 MGD
Holiday Shores Sanitary District 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 October 29, 2024.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Significant industrial user · WWTP · all terms