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Combined sewer overflow (CSO) reported — City of Saginaw WWTP, Sep 3, 2026

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

Source: Michigan EGLE (MiEnviro CSO/SSO List) via EGLE MiEnviro CSO/SSO List, record 4556966353778705058-2, reported Sep 3, 2026, 7:36 PM EDT, retrieved 2026-11-05 01:07 UTC · Read the original notice

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1. Reported wastewater outlet

Operator named in the record: City of Saginaw WWTP (federal wastewater discharge permit, NPDES, MI0025577). Outlet: “R03”. 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: “Saginaw River”. DirtyWaterWatch links this report to Saginaw River, MI. Match basis: the water named in the report.

3. Estimated downstream stretch

No downstream estimate is available for this report.

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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

Sep 3, 2026, 3:49 PM EDT

Ended

ongoing, as last reported

Detail provided by the source

Times known to the minute

Reported to the source

Sep 3, 2026, 7:36 PM EDT

Published

not given

Source last updated

not given

Last retrieved by DirtyWaterWatch

2026-11-05 01:07 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

“Partially Treated (retention treatment basin discharge: combined sewage given partial treatment)”

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 Saginaw River: Discharge reported ongoing, Sep 3, 2026, 3:49 PM EDT to Sep 10, 2026, 3:49 PM EDT
• End not confirmed Saginaw River, Sep 10, 2026, 3:49 PM EDT to Oct 3, 2026, 3:49 PM EDT
• No current status shown Saginaw River: end not confirmed, no map colour, Oct 3, 2026, 3:49 PM EDT to Dec 2, 2026, 2:49 PM EST (the end is 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

4556966353778705058-2

Original notice

Read the original notice

Earlier version

None: this is the first record

Later versions

None

{
  "submissionId": "4556966353778705058",
  "submissionReferenceNumber": "HQR-A1WZ-FBHYF",
  "sectionNumber": 2,
  "submissionReceivedDate": "2026-09-03T19:36:45.9870000-04:00",
  "responsiblePartyName": "City of Saginaw WWTP",
  "siteName": "Saginaw WWTP",
  "permitNumber": "MI0025577",
  "countyDescription": "Saginaw",
  "countyId": "73",
  "reportStatusId": "IN_PROCESS",
  "reportStatusDescription": "In Process",
  "dischargeType": "RTB Discharge,RTB Discharge",
  "dischargeQuality": "Partially Treated,Partially Treated",
  "dischargeVolume": null,
  "dischargeVolumeNumeric": null,
  "eventStartDate": "2026-09-03T15:49:00.0000000-04:00",
  "eventEndDate": "2026-09-03T15:49:00.0000000-04:00",
  "featureNumber": null,
  "featureDescription": "R03",
  "receivingWater": "Saginaw River",
  "landImpacted": null,
  "precipitationAmount": null,
  "precipitationType": "Rain,Rain",
  "reached_water": true
}