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Michigan / Sewer operators /

Milk River Intercounty Drain Drainage District (MILK RIVER CSO RTB)

Sewer utility with combined sewers · Michigan · Grosse Pointe Woods

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.

Solid dots mark combined sewer outfalls. Square boat markers mark boat launches listed by OpenBoatLaunch.

Federal wastewater discharge permit (NPDES)
MI0025500
Wastewater outlets
1 combined sewer outfall listed by EPA or state agencies · List
Waters listed as receiving wastewater
Milk River
Tracked waters
Milk River, MI, Lake Saint Clair, MI
Discharge records counted
272 records · latest
Total reported volume in these records
181,327,922,948,535 gallons across the 272 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 Milk River Intercounty Drain Drainage District (MILK RIVER CSO RTB) or the state publishes its notices (check them for an alert sign-up):

Its public-notice channels

Source: Milk River Intercounty Drain Drainage District (MILK RIVER CSO RTB)'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

Rain and discharges

The NOAA MRMS radar-only rainfall estimate for the 24 hours to the latest hour, read every hour at each outfall from the radar grid. We show a caution when the rain reaches the amount below and no discharge report has arrived.

Threshold
0.1 in of rain in 24 hours (site default: This site's default: 0.1 inch of rain in 24 hours at a combined sewer outfall, applied where the state publishes no rain trigger of its own)
Radar now
5.1 in in the 24 hours to Nov 4, 2026, 7:00 PM EST
Forecast
0.03 in forecast in the next 24 hours (NWS forecast issued Nov 4, 2026, 3:49 PM EST)
Status
Discharge possible: heavy rain, no report received

Source: NOAA National Weather Service, MRMS radar-only rainfall estimate, valid Nov 4, 2026, 7:00 PM EST, retrieved 2026-11-05 01:19 UTC; threshold: site default; rule: How it works, discharge likely or possible.

Wastewater outlets

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

1 combined sewer outfall listed by EPA or state agencies.

Combined sewer outfalls

1 outfall

Source: U.S. Environmental Protection Agency (EPA) national combined sewer outfall inventory (ECHO) and state outfall layers. Open or closed as EPA's inventory lists it. DirtyWaterWatch links outlets to waters using permit numbers, locations and names.

Reports and advisories

Combined sewer overflow (CSO): sewage mixed with rainwater spills from a shared sewer system.

Reports linked to Milk River Intercounty Drain Drainage District (MILK RIVER CSO RTB), newest first
WhenReportStatus
Milk River · CSO · 11.1 million gallons report · notice · mapended
to 6:26 PMLake Saint Clair · 001 Milk River · CSO · 33.4 million gallons report · notice · mapended
to Apr 17, 8:05 AMLake Saint Clair · 001 Milk River · CSO · 27.5 million gallons report · notice · mapended
to Mar 7, 11:43 AMLake Saint Clair · 001 Milk River · CSO · 36.4 million gallons report · notice · mapended
to 7:17 PMLake Saint Clair · 001 Milk River · CSO · 27.6 million gallons report · notice · mapended
to Jun 20 ’25, 12:28 AMLake Saint Clair · 001 Milk River · CSO · 18.4 million gallons report · notice · mapended
to Apr 3 ’25, 8:15 AMLake Saint Clair · 001 Milk River · CSO · 82.5 million gallons report · notice · mapended
to Dec 30 ’24, 7:12 AMLake Saint Clair · 001 Milk River · CSO · 45.8 million gallons report · notice · mapended
to 9:00 AMLake Saint Clair · 001 Milk River · CSO · 21.7 million gallons report · notice · mapended
to 10:16 PMLake Saint Clair · 001 Milk River · CSO · 23.8 million gallons report · notice · mapended
to 6:50 PMLake Saint Clair · 001 Milk River · CSO · 99.5 million gallons report · notice · mapended
to Jul 24 ’24, 5:51 AMLake Saint Clair · 001 Milk River · CSO · 119.9 million gallons report · notice · mapended
to 7:17 PMLake Saint Clair · 001 Milk River · CSO · 59.4 million gallons report · notice · mapended
to 8:45 AMLake Saint Clair · 001 Milk River · CSO · 8.15 million gallons report · notice · mapended
to 1:44 PMLake Saint Clair · 001 Milk River · CSO · 10.3 million gallons report · notice · mapended
to 1:59 PMLake Saint Clair · 001 Milk River · CSO · 111.4 million gallons report · notice · mapended
to Aug 25 ’23, 8:36 AMLake Saint Clair · 001 Milk River · CSO · 143.85 million gallons report · notice · mapended
to 12:49 PMLake Saint Clair · 001 Milk River · CSO · 11.4 million gallons report · notice · mapended
to 5:15 PMLake Saint Clair · 001 Milk River · CSO · 9.3 million gallons report · notice · mapended
to Apr 4 ’23, 7:10 AMLake Saint Clair · 001 Milk River · CSO · 45 million gallons report · notice · mapended
to Apr 1 ’23, 8:19 PMLake Saint Clair · 001 Milk River · CSO · 96.5 million gallons report · notice · mapended
Lake Saint Clair · 001 Milk River · CSO · 8.8 million gallons report · notice · mapended
to 10:11 AMLake Saint Clair · 001 Milk River · CSO · 29.6 million gallons report · notice · mapended
to 11:36 AMLake Saint Clair · 001 Milk River · CSO · 25.9 million gallons report · notice · mapended
to 6:55 AMLake Saint Clair · 001 Milk River · CSO · 23.59 million gallons report · notice · mapended

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

Showing the latest 25 records of 272 records.See them all with filters.

All reports in Michigan by year: 2026 (4 from Milk River Intercounty Drain Drainage District (MILK RIVER CSO RTB)) · 2025 (3 from Milk River Intercounty Drain Drainage District (MILK RIVER CSO RTB)) · 2024 (9 from Milk River Intercounty Drain Drainage District (MILK RIVER CSO RTB)) · 2023 (6 from Milk River Intercounty Drain Drainage District (MILK RIVER CSO RTB)) · 2022 (2 from Milk River Intercounty Drain Drainage District (MILK RIVER CSO RTB)) · 2021 (12 from Milk River Intercounty Drain Drainage District (MILK RIVER CSO RTB)) · 2020 (5 from Milk River Intercounty Drain Drainage District (MILK RIVER CSO RTB)) · 2019 (5 from Milk River Intercounty Drain Drainage District (MILK RIVER CSO RTB)) · 2018 (16 from Milk River Intercounty Drain Drainage District (MILK RIVER CSO RTB)) · 2017 (15 from Milk River Intercounty Drain Drainage District (MILK RIVER CSO RTB)) · 2016 (11 from Milk River Intercounty Drain Drainage District (MILK RIVER CSO RTB)) · 2015 (8 from Milk River Intercounty Drain Drainage District (MILK RIVER CSO RTB)) · 2014 (17 from Milk River Intercounty Drain Drainage District (MILK RIVER CSO RTB)) · 2013 (20 from Milk River Intercounty Drain Drainage District (MILK RIVER CSO RTB)) · 2012 (8 from Milk River Intercounty Drain Drainage District (MILK RIVER CSO RTB)) · 2011 (25 from Milk River Intercounty Drain Drainage District (MILK RIVER CSO RTB)) · 2010 (12 from Milk River Intercounty Drain Drainage District (MILK RIVER CSO RTB)) · 2009 (16 from Milk River Intercounty Drain Drainage District (MILK RIVER CSO RTB)) · 2008 (18 from Milk River Intercounty Drain Drainage District (MILK RIVER CSO RTB)) · 2007 (18 from Milk River Intercounty Drain Drainage District (MILK RIVER CSO RTB)) · 2006 (14 from Milk River Intercounty Drain Drainage District (MILK RIVER CSO RTB)) · 2005 (8 from Milk River Intercounty Drain Drainage District (MILK RIVER CSO RTB)) · 2004 (2 from Milk River Intercounty Drain Drainage District (MILK RIVER CSO RTB)) · 2003 (2 from Milk River Intercounty Drain Drainage District (MILK RIVER CSO RTB)) · 2002 (7 from Milk River Intercounty Drain Drainage District (MILK RIVER CSO RTB)) · 2001 (9 from Milk River Intercounty Drain Drainage District (MILK RIVER CSO RTB))

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.
  • End not confirmed: to
    1 report: Milk River 1
    Show records

    The records are also in the report table on this page.

  • Caution: to
    1 report: Milk River 1
    Show records

    The records are also in the report table on this page.

  • Caution: to
    1 report: Lake Saint Clair 1
    Show records

    The records are also in the report table on this page.

  • Discharge or advisory reported: to
    1 report: Lake Saint Clair 1
    Show records

    The records are also in the report table on this page.

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 Milk River Intercounty Drain Drainage District (MILK RIVER CSO RTB), last 12 months4December 2025 to November 2026Verified reports where available, else notices; revisions and duplicates counted once.
  • Days with a discharge reported by Milk River Intercounty Drain Drainage District (MILK RIVER CSO RTB), last 12 months7December 2025 to November 2026A day counts once however many discharges were under way on it.
  • Hours with a discharge or advisory status from Milk River Intercounty Drain Drainage District (MILK RIVER CSO RTB)'s reports, last 12 months75December 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 (Milk River Intercounty Drain Drainage District (MILK RIVER CSO RTB))0.3%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.

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.

Reported discharges per month

24 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

7 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

272 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 268 reports that gave a volume as a number (4 did not).

4 of 272 discharge reports gave no volume as a number; only numbers are summed. 4 reports give more than 5 billion gallons for a single discharge, which looks like an entry error; they are not summed.

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

7 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

7 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: 1 of 1, 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