Michigan / Reports /

Combined sewer overflow (CSO) reported — City of Lansing WWTP, Sep 15, 2026

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

Source: Michigan EGLE (MiEnviro CSO/SSO List) via EGLE MiEnviro CSO/SSO List, record 3477514178993175135-12, reported Sep 16, 2026, 10:41 AM 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 Lansing WWTP (federal wastewater discharge permit, NPDES, MI0023400). Outlet: 024 “Lenawee Street East of Grand Avenue”. Location: 42.73889, -84.54500; location source: EPA wastewater outlet records (the report gives no location).

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

Source: EPA ECHO wastewater outlet records, permit MI0023400, outlet 024. Location linked by DirtyWaterWatch.

2. Waters named in the notice

The notice names: “Grand River”. DirtyWaterWatch links this report to Grand River, MI. Match basis: the outlet's permit and number in EPA and state records.

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 15, 2026, 10:30 AM EDT

Ended

Sep 15, 2026, 1:30 PM EDT

Detail provided by the source

Times known to the minute

Reported to the source

Sep 16, 2026, 10:41 AM 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

Ended (as reported)

Material

“Diluted Raw Sewage”

Volume

260,000 gallons (not stated whether estimated or measured)

Volume as reported

“0.26 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

• Discharge or advisory reported Grand River: Discharge reported ongoing, Sep 15, 2026, 10:30 AM EDT to Sep 15, 2026, 1:30 PM EDT
• Caution Grand River: Within the caution period after the reported end, Sep 15, 2026, 1:30 PM EDT to Sep 18, 2026, 1:30 PM EDT

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

3477514178993175135-12

Original notice

Read the original notice

Earlier version

None: this is the first record

Later versions

None

{
  "submissionId": "3477514178993175135",
  "submissionReferenceNumber": "HQR-KZE7-8M2EZ",
  "sectionNumber": 12,
  "submissionReceivedDate": "2026-09-16T10:41:47.5270000-04:00",
  "responsiblePartyName": "City of Lansing WWTP",
  "siteName": "Lansing WWTP",
  "permitNumber": "MI0023400",
  "countyDescription": "Ingham",
  "countyId": "33",
  "reportStatusId": "COMPLETE",
  "reportStatusDescription": "Completed",
  "dischargeType": "CSO Discharge,CSO Discharge",
  "dischargeQuality": "Diluted Raw Sewage,Diluted Raw Sewage",
  "dischargeVolume": "0.26000 Million Gallons",
  "dischargeVolumeNumeric": 260000,
  "eventStartDate": "2026-09-15T10:30:00.0000000-04:00",
  "eventEndDate": "2026-09-15T13:30:00.0000000-04:00",
  "featureNumber": "024",
  "featureDescription": "Lenawee Street East of Grand Avenue",
  "receivingWater": "Grand River",
  "landImpacted": null,
  "precipitationAmount": "0.44",
  "precipitationType": "Rain,Rain",
  "reached_water": true
}