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

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

Source: Michigan EGLE (MiEnviro CSO/SSO List) via EGLE MiEnviro CSO/SSO List, record -3367894764455623674-14, reported Oct 16, 2026, 3:56 PM EDT, retrieved 2026-11-05 01:07 UTC · Read the original notice

Current status from this report

End not confirmed on Grand River. Current rule period ends Nov 14, 2026, 10:00 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 Red Cedar River. Current rule period ends Nov 14, 2026, 10:00 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 Lansing WWTP (federal wastewater discharge permit, NPDES, MI0023400). 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 Grand River, MI, Red Cedar River, 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.

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
Ended
ongoing, as last 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
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

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
-3367894764455623674-14
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:-3367894764455623674-14
Source identifiermi-egle-mienviro-cso-sso-list
Source record number-3367894764455623674-14
Earlier versionNot provided
TypeCombined sewer overflow (CSO)
Status in the reportOngoing (as reported)
Sewer operator identifiermi-lansing-wwtp-mi0023400
Sewer operatorCity of Lansing WWTP
Federal wastewater discharge permit (NPDES)MI0023400
Outlet numberNot provided
Outlet nameNot provided
Water named in the reportNot provided
Linked watersgrand-river-mi, red-cedar-river-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 15, 2026, 11:00 PM EDT (2026-10-15T23:00:00-04:00)
EndedNot provided
Detail provided by the sourceto the minute
Reported to the sourceOct 16, 2026, 3:56 PM EDT (2026-10-16T15:56:24-04:00)
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 gallonsNot provided
Volume as reportedNot provided
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%22-3367894764455623674%22%7D%5D%2C%22top%22%3A50%7D

Original source data

{
  "submissionId": "-3367894764455623674",
  "submissionReferenceNumber": "HQS-BQ35-YEYP5",
  "sectionNumber": 14,
  "submissionReceivedDate": "2026-10-16T15:56:24.2900000-04:00",
  "responsiblePartyName": "City of Lansing WWTP",
  "siteName": "Lansing WWTP",
  "permitNumber": "MI0023400",
  "countyDescription": "Ingham",
  "countyId": "33",
  "reportStatusId": "IN_PROCESS",
  "reportStatusDescription": "In Process",
  "dischargeType": "CSO Discharge,CSO Discharge",
  "dischargeQuality": "Diluted Raw Sewage,Diluted Raw Sewage",
  "dischargeVolume": null,
  "dischargeVolumeNumeric": null,
  "eventStartDate": "2026-10-15T23:00:00.0000000-04:00",
  "eventEndDate": "2026-10-15T23:00:00.0000000-04:00",
  "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.