Michigan / Reports /

Combined sewer overflow (CSO) reported — City of Lansing WWTP, Aug 30, 2026

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

Source: Michigan EGLE (MiEnviro CSO/SSO List) via EGLE MiEnviro CSO/SSO List, record -5971414424239884130-11, reported Aug 31, 2026, 11:31 AM EDT, retrieved 2026-11-04 15:09 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: 022 “Ottawa Street at Grand Street”. Location: 42.73944, -84.54806; 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 022. 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

Aug 30, 2026, 8:30 AM EDT

Ended

Aug 30, 2026, 11:30 AM EDT

Detail provided by the source

Times known to the minute

Reported to the source

Aug 31, 2026, 11:31 AM EDT

Published

not given

Source last updated

not given

Last retrieved by DirtyWaterWatch

2026-11-04 15:09 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

137,000 gallons (not stated whether estimated or measured)

Volume as reported

“0.137 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, Aug 30, 2026, 8:30 AM EDT to Aug 30, 2026, 11:30 AM EDT
• Caution Grand River: Within the caution period after the reported end, Aug 30, 2026, 11:30 AM EDT to Sep 2, 2026, 11:30 AM 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

-5971414424239884130-11

Original notice

Read the original notice

Earlier version

None: this is the first record

Later versions

None

{
  "submissionId": "-5971414424239884130",
  "submissionReferenceNumber": "HQR-7DZA-RW5F5",
  "sectionNumber": 11,
  "submissionReceivedDate": "2026-08-31T11:31:02.9000000-04:00",
  "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": "0.13700 Million Gallons",
  "dischargeVolumeNumeric": 137000,
  "eventStartDate": "2026-08-30T08:30:00.0000000-04:00",
  "eventEndDate": "2026-08-30T11:30:00.0000000-04:00",
  "featureNumber": "022",
  "featureDescription": "Ottawa Street at Grand Street",
  "receivingWater": "Grand River",
  "landImpacted": null,
  "precipitationAmount": "0.44",
  "precipitationType": "Rain,Rain",
  "reached_water": true
}