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Sanitary sewer overflow (SSO) reported — Dow Chemical, Sep 3, 2026

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

Source: Michigan EGLE (MiEnviro CSO/SSO List) via EGLE MiEnviro CSO/SSO List, record -6153008500806674668-2, reported Sep 4, 2026, 10:49 AM EDT, retrieved 2026-11-05 01:07 UTC · Read the original notice

Read the original notice · Report an error

1. Reported wastewater outlet

Operator named in the record: Dow Chemical (federal wastewater discharge permit, NPDES, MI0000868). Outlet: “Grass, gravel and asphalt”. 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: “MIOPS property surface water swale”. No receiving water: the report names no water, only 'MIOPS property surface water swale'. The report is kept here but is not placed on a water and colours none on the map.

3. Estimated downstream stretch

We estimate routes only on rivers before they become tidal. We do not estimate routes through tidal water or lakes.

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, 3:15 PM EDT

Ended

Sep 3, 2026, 4:00 PM EDT

Detail provided by the source

Times known to the minute

Reported to the source

Sep 4, 2026, 10:49 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

Sanitary sewer overflow (SSO): sewage spills from a sewer meant to carry sewage separately from rainwater.

Status in the record

Ended (as reported)

Material

“Blended Sewage”

Volume

700,000 gallons (not stated whether estimated or measured)

Volume as reported

“700000 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

Source and versions

Source

EGLE MiEnviro CSO/SSO List

Source record number

-6153008500806674668-2

Original notice

Read the original notice

Earlier version

None: this is the first record

Later versions

None

{
  "submissionId": "-6153008500806674668",
  "submissionReferenceNumber": "HQR-AHV1-RX9YG",
  "sectionNumber": 2,
  "submissionReceivedDate": "2026-09-04T10:49:31.1100000-04:00",
  "responsiblePartyName": "Dow Chemical",
  "siteName": "Dow Chemical-Midland",
  "permitNumber": "MI0000868",
  "countyDescription": "Midland",
  "countyId": "56",
  "reportStatusId": "IN_PROCESS",
  "reportStatusDescription": "In Process",
  "dischargeType": "SSO Discharge,SSO Discharge",
  "dischargeQuality": "Blended Sewage,Blended Sewage",
  "dischargeVolume": "700000.00000 Gallons",
  "dischargeVolumeNumeric": 700000,
  "eventStartDate": "2026-09-03T15:15:00.0000000-04:00",
  "eventEndDate": "2026-09-03T16:00:00.0000000-04:00",
  "featureNumber": null,
  "featureDescription": "Grass, gravel and asphalt",
  "receivingWater": "MIOPS property surface water swale",
  "landImpacted": "Small portion of Michigan Operations property near 23 gate on the southeast side of the site",
  "precipitationAmount": "1.5",
  "precipitationType": "Rain,Rain",
  "reached_water": true
}