Village of Mount Prospect
Sewer operator · Illinois · Mount Prospect
Map sources: water outlines and launches from OpenBoatLaunch and OpenStreetMap contributors (Open Database License); wastewater outlets from EPA and state records; downstream estimates by DirtyWaterWatch using U.S. Geological Survey maps and flow data. Base map: OpenFreeMap and OpenMapTiles.
Solid dots mark combined sewer outfalls. Ringed dots mark treatment plant outfalls. A yellow ring with a dashed edge means discharge likely or possible: heavy rain, no report received. Square boat markers mark boat launches listed by OpenBoatLaunch.
- Federal wastewater discharge permit (NPDES)
- IL0052400
- Wastewater outlets
- 10 combined sewer outfalls and 1 treatment plant outfall listed by EPA or state agencies (the state's combined sewer records list 1) · List
- Waters listed as receiving wastewater
- FEEHANVILLE DITCH, WELLER CREEK, WELLER CREEK AND FEEHANVILLE DITCH
- Tracked waters
- Des Plaines River, IL, Feehanville Ditch, IL, Weller Creek, IL
- Discharge records counted
- 0 records
- Total reported volume in these records
- No numeric volumes are available in these tracked records.
These totals reflect the records we track. Missing volumes and gaps in reporting limit comparisons between operators.
Sources: EPA ECHO and the operator and state sources linked below. Counts use the discharge records on this page. Updated 2026-11-06 09:03 UTC.
Public notices and alerts
We do not list an alert service for this operator yet. Check its website.
Source: Village of Mount Prospect's public notice and alert pages and the state's notification records.
Report a missing notice or error
Rain and discharges
The NOAA MRMS radar-only rainfall estimate for the 24 hours to the latest hour, read every hour at each outfall from the radar grid. We show a caution when the rain reaches the amount below and no discharge report has arrived.
- Threshold
- 0.1 in of rain in 24 hours (site default: This site's default: 0.1 inch of rain in 24 hours at a combined sewer outfall, applied where the state publishes no rain trigger of its own)
- Radar now
- 1.2 in in the 24 hours to Nov 6, 2026, 2:00 AM CST
- Forecast
- 0 in forecast in the next 24 hours (NWS forecast issued Nov 6, 2026, 12:21 AM CST)
- Status
- Discharge possible: heavy rain, no report received
Source: NOAA National Weather Service, MRMS radar-only rainfall estimate, valid Nov 6, 2026, 2:00 AM CST, retrieved 2026-11-06 08:57 UTC; threshold: site default; rule: How it works, discharge likely or possible.
Wastewater outlets
Outfall: a pipe or outlet where wastewater enters a water body.
10 combined sewer outfalls and 1 treatment plant outfall listed by EPA or state agencies. Discharge likely or possible now at some of them: see Rain and discharges above.
Combined sewer outfalls
10 outfalls · discharge possible now at 10
Discharge possible: heavy rain, no report received at 10 outfalls now: radar rainfall has reached the operator's threshold and no discharge report has arrived (NOAA radar estimate).
- Outfall 001 · receiving water in the permit: Weller Creek · Weller Creek, IL · open · discharge possible now: heavy rain, no report received
- Outfall 002 · receiving water in the permit: Weller Creek · Weller Creek, IL · open · discharge possible now: heavy rain, no report received
- Outfall 003 · receiving water in the permit: WELLER CREEK · Weller Creek, IL · open · shown at the treatment plant (the outlet's own location is not published) · discharge possible now: heavy rain, no report received
- Outfall 004 · receiving water in the permit: Weller Creek · Weller Creek, IL · open · discharge possible now: heavy rain, no report received
- Outfall 005 · receiving water in the permit: FEEHANVILLE DITCH · no water record yet · open · shown at the treatment plant (the outlet's own location is not published) · discharge possible now: heavy rain, no report received
- Outfall None (K3) · receiving water in the permit: Weller Creek · Weller Creek, IL · open · discharge possible now: heavy rain, no report received
- Outfall UDP-DS4 (K20) · receiving water in the permit: Weller Creek · Weller Creek, IL · open · discharge possible now: heavy rain, no report received
- Outfall UDP-DS8 (K25-1) · receiving water in the permit: Feehanville Ditch · Feehanville Ditch, IL · open · discharge possible now: heavy rain, no report received
- Outfall UDP-DS8 (K25-2) · receiving water in the permit: Feehanville Ditch · Feehanville Ditch, IL · open · discharge possible now: heavy rain, no report received
- Outfall UDP-DS8 (K26) · receiving water in the permit: Feehanville Ditch · Feehanville Ditch, IL · open · discharge possible now: heavy rain, no report received
Source: U.S. Environmental Protection Agency (EPA) national combined sewer outfall inventory (ECHO) and state outfall layers. Open or closed as EPA's inventory lists it. DirtyWaterWatch links outlets to waters using permit numbers, locations and names.
Treatment plant outfalls
1 outfall
- Plant outfall · receiving water in the permit: FEEHANVILLE DITCH, WELLER CREEK, WELLER CREEK AND FEEHANVILLE DITCH · Des Plaines River, IL · status not published · shown at the treatment plant (the outlet's own location is not published)
Source: U.S. Environmental Protection Agency (EPA) permit records (ICIS-NPDES permitted features): where a treatment plant’s permitted discharge leaves. No national source says whether a plant outfall is open or closed.
Reports and advisories
No reports are linked to this operator yet.
Other sewer operators on these waters
- Des Plaines River, IL: City of Chicago (Chicago CSO), City of Crest Hill, City of Joliet, City of Joliet Eastside (Joliet Eastside STP), City of Park Ridge (Park Ridge CSOS), Dupage County Public Works, Lake County Public Works Department, Metro Water Reclamation District Of Greater Chicago (MWRDGC Stickney WRP), Metro Water Reclamation District Of Greater Chicago (MWRDGC Terrence J O'Brien WTR Reclamation Plant), North Shore Water Reclamation District, Village of Brookfield (Brookfield CSOS), Village of Des Plaines (Des Plaines CSOS), Village of Elwood, Village of Forest Park (Forest Park CSOS), Village of Franklin Park, Village of Libertyville, Village of Lyons (Lyons CSOS), Village of Maywood (Maywood CSOS), Village of Melrose Park (Melrose Park CSOS), Village of Mundelein, Village of North Riverside, Village of River Forest (River Forest CSOS), Village of River Grove (River Grove CSOS), Village of Riverside (Riverside CSOS), Village of Romeoville, Village of Schiller Park
- Weller Creek, IL: Metro Water Reclamation District Of Greater Chicago (MWRDGC Stickney WRP), Village of Arlington Heights (Arlington Heights CSOS), Village of Des Plaines (Des Plaines CSOS)
The last 90 days
No discharge, advisory or caution periods are shown for the waters this sewer operator's reports were placed on in this time span. Check downstream stretches and source coverage.
Source: DirtyWaterWatch calculations using the reports named above and the published status rules. Updated 2026-11-06 09:03 UTC.
Reported discharges over time
Historical charts are not available here. See the reports and sources on this page.