Danville Sanitary District STP
16161 Grapte Creek Road, Danville, IL 61834 · Vermilion County · Publicly Owned Treatment Works
- Average flow
- 8.45 MGD
- Design flow
- —
- NPDES permit
- ILL020788
- Effective
- Permit expires
- December 2030
- Population served
- 83,005
- CWNS 2022
Danville Sanitary District STP is a publicly owned wastewater treatment works in Danville, Vermilion County, Illinois treating an average of 8.45 million gallons per day, serving about 83,005 residents. It discharges under NPDES permit ILL020788 (effective), which expires in December 2030, with 9 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Danville Sanitary District STP.
Available with a free Klarifi account
See the full treatment train at Danville Sanitary District STP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 9
- Effluent violations
- 9
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Capital improvement projects in Danville
Danville's capital improvement plan lists 14 water, sewer and wastewater line items worth $17M starting 2025–2028. The largest budgeted items are shown here.
All water and sewer capital projects in Danville →
| Project | Budget | Years |
|---|---|---|
| 5th Street Pump Station Elimination | $4,550,000 | 2025–2028 |
| Major Sewer & Manhole Rehabilitation - Phase 1 | $2,103,475 | 2025–2029 |
| Major Sewer & Manhole Rehabilitation - Phase 2 | $1,946,402 | 2026–2029 |
| Major Sewer & Manhole Rehabilitation - Phase 3 | $1,412,200 | 2027–2029 |
| 2025 Stormwater Infrastructure Improvements | $1,235,000 | 2025–2026 |
Full project details — scope, funding source, engineering consultant and the decision-makers behind each project — are available in Klarifi, along with similar wastewater capital projects in other cities.
Key contacts
1 verified contact for Danville Sanitary District STP, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Danville Sanitary District STP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Illinois
Belgium · 3 mi away
0.66 MGD
Catlin · 6 mi away
—
Georgetown · 8 mi away
0.62 MGD
Ridge Farm · 14 mi away
—
Potomac · 18 mi away
0.17 MGD
Ogden · 19 mi away
0.07 MGD
Homer · 19 mi away
0.06 MGD
Rossville · 20 mi away
0.18 MGD
Danville 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 March 20, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · WWTP · Biosolids · all terms