Combined sewer overflow (CSO) reported — City of Dearborn, Oct 29, 2026

Ongoing (as reported) · Michigan EGLE (MiEnviro CSO/SSO List)

Source: Michigan EGLE (MiEnviro CSO/SSO List) via EGLE MiEnviro CSO/SSO List, record 5713797442538804443-3, reported Oct 29, 2026, 6:39 PM EDT, retrieved 2026-11-04 11:13 UTC · Read the original notice

Current status from this report

Discharge or advisory reported on Detroit River: Discharge reported ongoing. Current rule period ends Nov 5, 2026, 4:22 PM EST. This is not a water-quality test.

Why this status: Discharge or advisory reported: the discharge is reported as ongoing.

Why we use this rule: A report marked ongoing stays red until an end is found or 7 days pass. After 7 days we label the end unconfirmed rather than assume the discharge continues.

This rule on the methods page, with its source

Discharge or advisory reported on Lower River Rouge: Discharge reported ongoing. Current rule period ends Nov 5, 2026, 4:22 PM EST. This is not a water-quality test.

Discharge or advisory reported on River Rouge at Detroit, MI: Discharge reported ongoing. Current rule period ends Nov 5, 2026, 4:22 PM EST. This is not a water-quality test.

Discharge or advisory reported on River Rouge at Melvindale, MI: Discharge reported ongoing. Current rule period ends Nov 5, 2026, 4:22 PM EST. This is not a water-quality test.

A report is not a test of the water. See how we assign statuses.

Read the original notice · Report an error

1. Reported wastewater outlet

Operator named in the record: City of Dearborn (federal wastewater discharge permit, NPDES, MI0025542). Outlet: not stated. Location: not given in the report or in the outlet records.

Outfall: a pipe or outlet where wastewater enters a water body.

2. Waters named in the notice

The notice names no water. DirtyWaterWatch links this report to Lower River Rouge, MI, River Rouge, MI. Match basis: the operator's listed receiving water; the report itself does not name the water.

3. Estimated downstream stretch

Estimated downstream stretch — not checked by water sampling. Estimated by DirtyWaterWatch using U.S. Geological Survey river maps and flow measurements; not an official advisory area. This estimates water movement, not bacteria levels.

Discharge or advisory reported 0 to 5.7 kilometres below the outlet

0 to 5.7 kilometres below the outlet · on Lower River Rouge

Estimated travel time from outlet 001: about 6 hours, or as little as 3 hours. Estimate based on the river's average yearly flow; no current gauge reading was available.
Discharge or advisory reported 5.7 to 12.7 kilometres below the outlet

5.7 to 12.7 kilometres below the outlet · on Lower River Rouge

Estimated travel time from outlet 001: about 11 hours, or as little as 6 hours. Estimate based on the river's average yearly flow; no current gauge reading was available.
Discharge or advisory reported 12.7 to 13.7 kilometres below the outlet

12.7 to 13.7 kilometres below the outlet · on Lower River Rouge

Estimated travel time from outlet 001: about 12 hours, or as little as 7 hours. Estimate based on the river's average yearly flow; no current gauge reading was available.
Discharge or advisory reported 13.7 to 14.1 kilometres below the outlet

13.7 to 14.1 kilometres below the outlet · on Lower River Rouge

Estimated travel time from outlet 001: about 12 hours, or as little as 7 hours. Estimate based on the river's average yearly flow; no current gauge reading was available.
Discharge or advisory reported 14.1 to 17.1 kilometres below the outlet

14.1 to 17.1 kilometres below the outlet · on Lower River Rouge

Estimated travel time from outlet 001: about 14 hours, or as little as 8 hours. Estimate based on the river's average yearly flow; no current gauge reading was available.
Discharge or advisory reported 17.1 to 17.9 kilometres below the outlet

17.1 to 17.9 kilometres below the outlet · on Lower River Rouge

Estimated travel time from outlet 001: about 15 hours, or as little as 8 hours. Estimate based on the river's average yearly flow; no current gauge reading was available.
Discharge or advisory reported 17.9 to 18.3 kilometres below the outlet

17.9 to 18.3 kilometres below the outlet · on Lower River Rouge

Estimated travel time from outlet 001: about 15 hours, or as little as 8 hours. Estimate based on the river's average yearly flow; no current gauge reading was available.
Discharge or advisory reported 18.3 to 23.9 kilometres below the outlet

18.3 to 23.9 kilometres below the outlet · on Lower River Rouge

Estimated travel time from outlet 001: about 16 hours, or as little as 9 hours. Estimate based on the river's average yearly flow; no current gauge reading was available.
Discharge or advisory reported 23.9 to 24 kilometres below the outlet

23.9 to 24 kilometres below the outlet · on Lower River Rouge

Estimated travel time from outlet 001: about 16 hours, or as little as 9 hours. Estimate based on the river's average yearly flow; no current gauge reading was available.
Discharge or advisory reported 24 to 27.1 kilometres below the outlet

24 to 27.1 kilometres below the outlet · on Lower River Rouge

Estimated travel time from outlet 001: about 17 hours, or as little as 10 hours. Estimate based on the river's average yearly flow; no current gauge reading was available.
Discharge or advisory reported 27.1 to 29.4 kilometres below the outlet

27.1 to 29.4 kilometres below the outlet · on Lower River Rouge

Estimated travel time from outlet 001: about 17 hours, or as little as 10 hours. Estimate based on the river's average yearly flow; no current gauge reading was available.
Discharge or advisory reported 29.4 to 30.9 kilometres below the outlet

29.4 to 30.9 kilometres below the outlet · on Lower River Rouge

Estimated travel time from outlet 001: about 18 hours, or as little as 10 hours. Estimate based on the river's average yearly flow; no current gauge reading was available.
Discharge or advisory reported 30.9 to 37.9 kilometres below the outlet

30.9 to 37.9 kilometres below the outlet · on Lower River Rouge

Estimated travel time from outlet 001: about 19 hours, or as little as 11 hours. Estimate based on the river's average yearly flow; no current gauge reading was available.
Discharge or advisory reported 37.9 to 39.9 kilometres below the outlet

37.9 to 39.9 kilometres below the outlet · on Lower River Rouge

Estimated travel time from outlet 001: about 20 hours, or as little as 12 hours. Estimate based on the river's average yearly flow; no current gauge reading was available.
Discharge or advisory reported 39.9 to 40 kilometres below the outlet

39.9 to 40 kilometres below the outlet · on Lower River Rouge

Estimated travel time from outlet 001: about 20 hours, or as little as 12 hours. Estimate based on the river's average yearly flow; no current gauge reading was available.

Estimate stops at the 40-kilometre limit.

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.

Open on the main map

When it happened and when it was reported

Event and notice times use Eastern Time (EST or EDT). Retrieval times use Coordinated Universal Time (UTC).

Started: Oct 29, 2026, 5:22 PM EDT
Ended: ongoing, as last reported
Detail provided by the source: Times known to the minute
Reported to the source: Oct 29, 2026, 6:39 PM EDT
Published: not given
Source last updated: not given
Last retrieved by DirtyWaterWatch: 2026-11-04 11:13 UTC

What and how much

Type: Combined sewer overflow (CSO): sewage mixed with rainwater spills from a shared sewer system.
Status in the record: Ongoing (as reported)
Material: “Diluted Raw Sewage”
Volume: volume not reported (not stated whether estimated or measured)
Volume as reported: none

Advice from Michigan EGLE (MiEnviro CSO/SSO List)

This report includes no advice. Check current local health notices.

Advice period: This report does not state a period. See the rule DirtyWaterWatch applies and its source.
Basis: not stated

Status history from this report

Discharge or advisory reported Detroit River: Discharge reported ongoing, Oct 29, 2026, 5:22 PM EDT to Nov 5, 2026, 4:22 PM EST (the end is scheduled: a new report can change it)
End not confirmed Detroit River, Nov 5, 2026, 4:22 PM EST to Nov 28, 2026, 4:22 PM EST (scheduled: a new report can change it)
No current status shown Detroit River: end not confirmed, no map colour, Nov 28, 2026, 4:22 PM EST to Jan 27, 2027, 4:22 PM EST (scheduled: a new report can change it)
Discharge or advisory reported Lower River Rouge: Discharge reported ongoing, Oct 29, 2026, 5:22 PM EDT to Nov 5, 2026, 4:22 PM EST (the end is scheduled: a new report can change it)
End not confirmed Lower River Rouge, Nov 5, 2026, 4:22 PM EST to Nov 28, 2026, 4:22 PM EST (scheduled: a new report can change it)
No current status shown Lower River Rouge: end not confirmed, no map colour, Nov 28, 2026, 4:22 PM EST to Jan 27, 2027, 4:22 PM EST (scheduled: a new report can change it)
Discharge or advisory reported River Rouge at Detroit, MI: Discharge reported ongoing, Oct 29, 2026, 5:22 PM EDT to Nov 5, 2026, 4:22 PM EST (the end is scheduled: a new report can change it)
End not confirmed River Rouge at Detroit, MI, Nov 5, 2026, 4:22 PM EST to Nov 28, 2026, 4:22 PM EST (scheduled: a new report can change it)
No current status shown River Rouge at Detroit, MI: end not confirmed, no map colour, Nov 28, 2026, 4:22 PM EST to Jan 27, 2027, 4:22 PM EST (scheduled: a new report can change it)
Discharge or advisory reported River Rouge at Melvindale, MI: Discharge reported ongoing, Oct 29, 2026, 5:22 PM EDT to Nov 5, 2026, 4:22 PM EST (the end is scheduled: a new report can change it)
End not confirmed River Rouge at Melvindale, MI, Nov 5, 2026, 4:22 PM EST to Nov 28, 2026, 4:22 PM EST (scheduled: a new report can change it)
No current status shown River Rouge at Melvindale, MI: end not confirmed, no map colour, Nov 28, 2026, 4:22 PM EST to Jan 27, 2027, 4:22 PM EST (scheduled: a new report can change it)

Source: DirtyWaterWatch calculations using this report and the published status rules. Updated 2026-11-05 01:25 UTC.

Source and versions

Source: EGLE MiEnviro CSO/SSO List
Source record number: 5713797442538804443-3
Original notice: Read the original notice
Earlier version: None: this is the first record
Later versions: None

Record details

Record details
Record identifier	mi-egle-mienviro-cso-sso-list:5713797442538804443-3
Source identifier	mi-egle-mienviro-cso-sso-list
Source record number	5713797442538804443-3
Earlier version	Not provided
Type	Combined sewer overflow (CSO)
Status in the report	Ongoing (as reported)
Sewer operator identifier	mi-dearborn-cso-mi0025542
Sewer operator	City of Dearborn
Federal wastewater discharge permit (NPDES)	MI0025542
Outlet number	Not provided
Outlet name	Not provided
Water named in the report	Not provided
Linked waters	lower-river-rouge-mi, river-rouge-mi
How this report was linked to the water	the operator's listed receiving water; the report itself does not name the water
Latitude	Not provided
Longitude	Not provided
Location source	Not provided
Location accuracy, in metres	Not provided
Started	Oct 29, 2026, 5:22 PM EDT (2026-10-29T17:22:00-04:00)
Ended	Not provided
Detail provided by the source	to the minute
Reported to the source	Oct 29, 2026, 6:39 PM EDT (2026-10-29T18:39:16-04:00)
Published	Not provided
Source last updated	Not provided
Last retrieved by DirtyWaterWatch	Nov 4, 2026, 6:13 AM EST (2026-11-04T11:13:40Z)
Material	Diluted Raw Sewage
Volume, in gallons	Not provided
Volume as reported	Not provided
How volume was determined	not stated whether estimated or measured
Authority	Michigan EGLE (MiEnviro CSO/SSO List)
Advice	Not provided
Advice period, in hours	Not provided
Basis of the advice period	Not provided
Original notice	https://mienviro.michigan.gov/ncore/ss/ssolist?queryParams=%7B%22filter%22%3A%5B%7B%22submissionId%22%3A%225713797442538804443%22%7D%5D%2C%22top%22%3A50%7D

Original source data

{
  "submissionId": "5713797442538804443",
  "submissionReferenceNumber": "HQS-P1KC-JCNJZ",
  "sectionNumber": 3,
  "submissionReceivedDate": "2026-10-29T18:39:16.5030000-04:00",
  "responsiblePartyName": "City of Dearborn",
  "siteName": "Dearborn CSO",
  "permitNumber": "MI0025542",
  "countyDescription": "Wayne",
  "countyId": "82",
  "reportStatusId": "IN_PROCESS",
  "reportStatusDescription": "In Process",
  "dischargeType": "CSO Discharge,CSO Discharge",
  "dischargeQuality": "Diluted Raw Sewage,Diluted Raw Sewage",
  "dischargeVolume": null,
  "dischargeVolumeNumeric": null,
  "eventStartDate": "2026-10-29T17:22:00.0000000-04:00",
  "eventEndDate": "2026-10-29T17:22:00.0000000-04:00",
  "featureNumber": null,
  "featureDescription": null,
  "receivingWater": null,
  "landImpacted": null,
  "precipitationAmount": null,
  "precipitationType": "Rain,Rain",
  "reached_water": null
}

Staff names, email addresses and phone numbers are removed from source data before it is stored.