DirtyWaterWatch Public waters. Public record.

Michigan / Sewer operators /

The Dow Chemical Company

Sewer operator · Michigan

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.

No outlet locations are in our records for this operator. Square boat markers mark boat launches listed by OpenBoatLaunch.

Federal wastewater discharge permit (NPDES)
MI0000868
Wastewater outlets
None in our records. EPA's and the state's outlet records list no outlet for permit MI0000868, and its overflow reports give no locations.
Waters listed as receiving wastewater
MIOPS property surface water swale
Tracked waters
Tittabawassee River, MI
Discharge records counted
18 records · latest
Total reported volume in these records
1,770,108 gallons across the 18 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 The Dow Chemical Company or the state publishes its notices (check them for an alert sign-up):

Its public-notice channels

Source: The Dow Chemical Company'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 MI0000868, 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. Treatment bypass: wastewater skips one or more treatment steps. Blended discharge: wastewater that skipped some treatment is mixed with treated wastewater.

Reports linked to The Dow Chemical Company, newest first
WhenReportStatus
to 4:00 PM“MIOPS property surface water swale” · Grass, gravel and asphalt · SSO · 700,000 gallons report · noticeended
to 4:30 PMWater not mapped · Gravel area near onsite railroad tracks · SSO · 2,000 gallons report · noticeended
Water not mapped · Dow Midland Michigan Industrial Park Property · SSO · 50 gallons report · noticeongoing
to 5:20 AMWater not mapped · Dow Property on South end of Plant, from a sewer basin downstream of 23 lift station · SSO · 50 gallons report · noticeended
Water not mapped · Dow MIOPS West near [house number removed] stormwater pond · SSO · 100 gallons report · noticeongoing
to Jan 7 ’25, 5:30 AMWater not mapped · road, soil, and gravel along J street area · SSO · 1.06 million gallons report · noticeended
to 1:15 PMWater not mapped · Dow WWTP - Diversion pump sewer manhole · Bypass · 100 gallons report · noticeended
Water not mapped · 123 lift station - Manhole and crock lid West of [house number removed] lift station · SSO · 10 gallons report · noticeended
to 11:00 AM“The leaked material co-mingled with a storm detention swale and will be treated at the Dow WWTP.” · Dow Michigan Operations 123 lift station area - Small portion of Dow property near [house number removed] building lift station · SSO · 100 gallons report · noticeended
to Jul 19 ’23, 1:00 PMWater not mapped · Manhole near [house number removed] Bld Lift Station - Failure in underground piping connection to manhole next to [house number removed] Bld lift station within Dow Michigan Operations Property · SSO · 2,338 gallons report · noticeended
to 5:00 PMWater not mapped · Dow Michigan Operations - Near Austin Street Lift Station · SSO · 4,200 gallons report · noticeended
to 8:10 AMWater not mapped · Two catch basins just inside Dow's [house number removed] Gate along South Saginaw Road, North of [house number removed] Building. - Asphalt and Grass · SSO · 10 gallons report · noticeended
to 1:30 AMWater not mapped · Dow Chemical MIOPS 123 lift station - North of [house number removed] lift station · SSO · 50 gallons report · noticeended
to 8:15 AMWater not mapped · Two catch basins just inside Dow's [house number removed] Gate along South Saginaw Road, North of [house number removed] Building. - Asphalt and Grass · SSO · 100 gallons report · noticeended
to May 21 ’20, 5:00 PMTittabawassee River · 031 Wastewaters generated by manufacturing processes, discharged after treatment through rapid diffuser · Blended · 1,000 gallons report · notice · mapended
Water not mapped · No Offsite Discharge - Not Applicable · SSO · 0 gallons report · noticeended
to 10:00 PMWater not mapped · No Offsite Discharge - Not Applicable · SSO · 0 gallons report · noticeended
to 4:00 PMWater not mapped · No Offsite Discharge - NA · SSO · 0 gallons report · noticeended

Sources: EGLE MiEnviro CSO/SSO List, retrieved 2026-11-05 01:07 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 (5 from The Dow Chemical Company) · 2025 (1 from The Dow Chemical Company) · 2024 (2 from The Dow Chemical Company) · 2023 (3 from The Dow Chemical Company) · 2022 (3 from The Dow Chemical Company) · 2020 (1 from The Dow Chemical Company) · 2019 (3 from The Dow Chemical Company)

Other sewer operators on these waters

The last 90 days

Last 90 days, hour by hour. Red: discharge or advisory reported. Amber: caution. Hatched amber: end not confirmed. Plum: algal bloom advisory. Red or amber with a light line inside: beach advisory or caution. Dotted: monthly report (days with discharge, dates not given). Grey: no current status on the water outline. Purple hatching: source update overdue.

No discharge, advisory or caution periods are shown for the waters this sewer operator's reports were placed on in this time span. Check downstream stretches and source coverage.

Source: DirtyWaterWatch calculations using the reports named above and the published status rules. Updated 2026-11-05 01:25 UTC.

Reported discharges over time

  • Discharges reported by The Dow Chemical Company, last 12 months5December 2025 to November 2026Verified reports where available, else notices; revisions and duplicates counted once.
  • Days with a discharge reported by The Dow Chemical Company, last 12 months5December 2025 to November 2026A day counts once however many discharges were under way on it.
  • Hours with a discharge or advisory status from The Dow Chemical Company's reports, last 12 months342December 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 (The Dow Chemical Company)0.1%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.

Reported discharges per month

14 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.

Show table

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

2 discharge reports have no end time and are not marked ongoing; under DirtyWaterWatch rules they show caution, not a discharge or advisory status, and add no hours here. 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.

Show table

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.

Show table

Reported discharges per year, 2001 to 2026

18 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.

Show table

Reported volume per year

Gallons (axis: K thousand, M million), summed from the 18 reports that gave a volume as a number.

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

Show table

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

2 discharge reports have no end time and are not marked ongoing; under DirtyWaterWatch rules they show caution, not a discharge or advisory status, and add no hours here. 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.

Show table

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

2 discharge reports have no end time and are not marked ongoing; under DirtyWaterWatch rules they show caution, not a discharge or advisory status, and add no hours here. 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.

Show table

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.

Show table

Reported discharges by wastewater outlet

Wastewater outlets with the most tracked discharge records: 10 of 16, 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.

Show table
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