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Combined sewer overflow (CSO) reported — City of Dearborn, Oct 16, 2026

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

Source: Michigan EGLE (MiEnviro CSO/SSO List) via EGLE MiEnviro CSO/SSO List, record 3002526074302044563-4, reported Oct 16, 2026, 4:08 PM EDT, retrieved 2026-11-05 01:07 UTC · Read the original notice

Current status from this report

End not confirmed on Detroit River. Current rule period ends Nov 15, 2026, 2:23 PM EST. This is not a water-quality test.

Why this status: End not confirmed: DirtyWaterWatch rule for missing end times.

Why we use this rule: From day 7 to day 30, the map marks the end as unconfirmed. After day 30, the record remains flagged on its report and water pages.

This rule on the methods page, with its source

End not confirmed on Lower River Rouge. Current rule period ends Nov 15, 2026, 2:23 PM EST. This is not a water-quality test.

End not confirmed on River Rouge at Detroit, MI. Current rule period ends Nov 15, 2026, 2:23 PM EST. This is not a water-quality test.

End not confirmed on River Rouge at Melvindale, MI. Current rule period ends Nov 15, 2026, 2:23 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.

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.

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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
Ended
not reported
Detail provided by the source
Times known to the minute
Reported to the source
Published
not given
Source last updated
not given
Last retrieved by DirtyWaterWatch

What and how much

Type
Combined sewer overflow (CSO): sewage mixed with rainwater spills from a shared sewer system.
Status in the record
Ended (as reported)
Material
“Diluted Raw Sewage”
Volume
1.17 million gallons (not stated whether estimated or measured)
Volume as reported
“1.17 Million Gallons”

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

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
3002526074302044563-4
Original notice
Read the original notice
Earlier version
None: this is the first record
Later versions
None

Record details

Record details
Record identifiermi-egle-mienviro-cso-sso-list:3002526074302044563-4
Source identifiermi-egle-mienviro-cso-sso-list
Source record number3002526074302044563-4
Earlier versionNot provided
TypeCombined sewer overflow (CSO)
Status in the reportEnded (as reported)
Sewer operator identifiermi-dearborn-cso-mi0025542
Sewer operatorCity of Dearborn
Federal wastewater discharge permit (NPDES)MI0025542
Outlet numberNot provided
Outlet nameNot provided
Water named in the reportNot provided
Linked waterslower-river-rouge-mi, river-rouge-mi
How this report was linked to the waterthe operator's listed receiving water; the report itself does not name the water
LatitudeNot provided
LongitudeNot provided
Location sourceNot provided
Location accuracy, in metresNot provided
StartedOct 16, 2026, 3:23 PM EDT (2026-10-16T15:23:00-04:00)
EndedNot provided
Detail provided by the sourceto the minute
Reported to the sourceOct 16, 2026, 4:08 PM EDT (2026-10-16T16:08:01-04:00)
PublishedNot provided
Source last updatedNot provided
Last retrieved by DirtyWaterWatchNov 4, 2026, 8:07 PM EST (2026-11-05T01:07:31Z)
MaterialDiluted Raw Sewage
Volume, in gallons1,170,000
Volume as reported1.17 Million Gallons
How volume was determinednot stated whether estimated or measured
AuthorityMichigan EGLE (MiEnviro CSO/SSO List)
AdviceNot provided
Advice period, in hoursNot provided
Basis of the advice periodNot provided
Original noticehttps://mienviro.michigan.gov/ncore/ss/ssolist?queryParams=%7B%22filter%22%3A%5B%7B%22submissionId%22%3A%223002526074302044563%22%7D%5D%2C%22top%22%3A50%7D

Original source data

{
  "submissionId": "3002526074302044563",
  "submissionReferenceNumber": "HQS-BR1Q-6D2JR",
  "sectionNumber": 4,
  "submissionReceivedDate": "2026-10-16T16:08:01.5630000-04:00",
  "responsiblePartyName": "City of Dearborn",
  "siteName": "Dearborn CSO",
  "permitNumber": "MI0025542",
  "countyDescription": "Wayne",
  "countyId": "82",
  "reportStatusId": "COMPLETE",
  "reportStatusDescription": "Completed",
  "dischargeType": "CSO Discharge,CSO Discharge",
  "dischargeQuality": "Diluted Raw Sewage,Diluted Raw Sewage",
  "dischargeVolume": "1.17000 Million Gallons",
  "dischargeVolumeNumeric": 1170000,
  "eventStartDate": "2026-10-16T15:23:00.0000000-04:00",
  "eventEndDate": "2026-10-16T15:23:00.0000000-04:00",
  "featureNumber": null,
  "featureDescription": null,
  "receivingWater": null,
  "landImpacted": null,
  "precipitationAmount": ".34",
  "precipitationType": "Rain,Rain",
  "reached_water": null
}

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