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Michigan / Sewer operators /

General Motors LLC - Orion Assembly

Sewer utility · Michigan

Federal wastewater discharge permit (NPDES)
3112a-1035
Wastewater outlets
None in our records. EPA's and the state's outlet records list no outlet for permit 3112a-1035, and its overflow reports give no locations.
Waters listed as receiving wastewater
not recorded
Tracked waters
none
Discharge records counted
3 records · latest
Total reported volume in these records
253 gallons across the 3 records that give a volume

These totals reflect the records we track. Missing volumes and gaps in reporting limit comparisons between operators.

Sources: EPA ECHO and the operator and state sources linked below. Counts use the discharge records on this page. Updated 2026-11-05 01:25 UTC.

Public notices and alerts

Pages where General Motors LLC - Orion Assembly or the state publishes its notices (check them for an alert sign-up):

Its public-notice channels

Source: General Motors LLC - Orion Assembly's public notice and alert pages and the state's notification records; DirtyWaterWatch register of public-notice channels and its page monitor.

Report a missing notice or error

Wastewater outlets

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

EPA's and the state's outlet records list no outlet for permit 3112a-1035, and its overflow reports give no locations.

Reports and advisories

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

Reports linked to General Motors LLC - Orion Assembly, newest first
WhenReportStatus
to 3:00 PMWater not mapped · Not applicable, there was no discharge from the facility, all material was contained onsite. · SSO · 50 gallons report · noticeended
to 4:15 PMWater not mapped · Not Applicable, there was no discharge from the facility, all material was contained onsite. · SSO · 3 gallons report · noticeended
to 1:30 PMWater not mapped · Not Applicable, there was no discharge from the facility, all released water was contained onsite. - Not applicable, there was no discharge from the facility, all released water was contained onsite. · SSO · 200 gallons report · noticeended

Sources: EGLE MiEnviro CSO/SSO List, retrieved 2026-11-04 15:09 UTC. A report's record id and times show when you hover or focus its "report" link.

Download these reports as CSV

All reports in Michigan by year: 2026 (2 from General Motors LLC - Orion Assembly) · 2024 (1 from General Motors LLC - Orion Assembly)

Reported discharges over time

  • Discharges reported by General Motors LLC - Orion Assembly, last 12 months2December 2025 to November 2026Verified reports where available, else notices; revisions and duplicates counted once.
  • Days with a discharge reported by General Motors LLC - Orion Assembly, last 12 months2December 2025 to November 2026A day counts once however many discharges were under way on it.
  • Hours with a discharge or advisory status from General Motors LLC - Orion Assembly's reports, last 12 months4December 2025 to November 2026Red hours by the map's rules: each discharge to its reported end plus the state's post-discharge period; overlapping hours count once.
  • 2026 season with a discharge or advisory status (General Motors LLC - Orion Assembly)0.0%May to October 2026Share of May 1 to October 31 hours with red status by the map's rules, of the hours a source covered.

Combined sewer overflow (CSO): sewage mixed with rainwater spills from a shared sewer system. Treatment bypass: wastewater skips one or more treatment steps. Blended discharge: wastewater that skipped some treatment is mixed with treated wastewater.

Reported discharges per month

3 reported discharges, January 2022 to November 2026.

  • Combined sewer overflow
  • Sanitary sewer overflow
  • Treatment bypass, blended or other

Source: mi-egle-mienviro-cso-sso-list. Records cover January 1, 2022 to November 4, 2026.

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Hours with a discharge or advisory status per month

Hours when a water had a discharge or advisory status from this sewer operator's reports, under DirtyWaterWatch rules.

  • Discharge or advisory reported

Official beach and cyanobacteria (harmful blue-green algae) advisories are counted on water pages only.

Source: mi-egle-mienviro-cso-sso-list. Records cover January 1, 2001 to November 4, 2026.

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Days with a reported discharge per month

A day counts when any counted discharge was under way on it, from its start to its reported end in Eastern Time; a report with no end counts its start day.

Source: mi-egle-mienviro-cso-sso-list. Records cover January 1, 2022 to November 4, 2026.

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Reported discharges per year, 2001 to 2026

3 reported discharges, 2001 to 2026.

  • Combined sewer overflow
  • Sanitary sewer overflow
  • Treatment bypass, blended or other

Source: mi-egle-mienviro-cso-sso-list. Records cover January 1, 2001 to November 4, 2026.

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Reported volume per year

Gallons (axis: K thousand, M million), summed from the 3 reports that gave a volume as a number.

Source: mi-egle-mienviro-cso-sso-list. Records cover January 1, 2001 to November 4, 2026.

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Hours with a discharge or advisory status per year

Hours with a discharge or advisory status each year under DirtyWaterWatch rules; 2026 to date.

  • Discharge or advisory reported

Official beach and cyanobacteria (harmful blue-green algae) advisories are counted on water pages only.

Source: mi-egle-mienviro-cso-sso-list. Records cover January 1, 2001 to November 4, 2026.

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Share of the May to October season with a discharge or advisory status

Share of the hours from May 1 to October 31 with a discharge or advisory status under DirtyWaterWatch rules.

  • Discharge or advisory reported

Official beach and cyanobacteria (harmful blue-green algae) advisories are counted on water pages only.

Source: mi-egle-mienviro-cso-sso-list. Records cover January 1, 2001 to November 4, 2026.

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Reported discharges by calendar month, all years

Every counted discharge report, by the calendar month it began.

Months are summed over every year a tracked source covers; the table gives the number of years behind each month.

Source: mi-egle-mienviro-cso-sso-list. Records cover January 1, 2001 to November 4, 2026.

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Reported discharges by wastewater outlet

Wastewater outlets with the most tracked discharge records: 2 of 2, all years. Counts depend on reporting coverage and do not measure legal compliance or harm.

Source: mi-egle-mienviro-cso-sso-list. Records cover January 1, 2001 to November 4, 2026.

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How these charts are counted

We count each discharge once. Where a source publishes notices and confirmed reports, we use confirmed reports for an operator's month when available; otherwise we use notices. We combine revisions and exclude duplicate state reports copied by the U.S. Environmental Protection Agency (EPA). Monthly and yearly totals appear separately. Status hours follow this site's rules. Shaded gaps mean missing coverage, not zero discharges.

  • mi-egle-mienviro-cso-sso-list: records from January 1, 2001 to the latest update