DirtyWaterWatch Public waters. Public record.

Michigan / Waters /

Clinton River

River in Michigan, past Mount Clemens, Rochester Hills, Sterling Heights, Waterford Charter Township and Yates

Current status

Discharge possible: heavy rain, no report received

Radar shows that recent rain at a combined sewer system's outlets has reached the amount set for that system, and its operator has not reported a discharge. It reads "discharge likely" where the amount is the one at which that system has discharged before, or a rain trigger its state publishes, and "discharge possible" where only this site's default of 0.1 inch applies. This is an estimate, not a report. This status since . Why this status, and its source

This badge describes the water outline. Check the downstream stretches on the map and below for discharge statuses.

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.

Square boat markers mark boat launches listed by OpenBoatLaunch. Dashed river stretches are estimates.

Check City of Mount Clemens (MT CLEMENS WWTP)'s notices · Bookmark this water page and check it before each trip · Report a missing notice or error

About this status

Discharge possible: heavy rain, no report received: heavy rain at a sewer operator's outlets reached this site's default amount, and no report received; shown for 48 hours after the rain (site rule). 4.1 in of rain fell in the 24 hours to Nov 4, 2026, 7:00 PM EST at City of Mount Clemens (MT CLEMENS WWTP)'s outfalls (NOAA radar estimate).

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. · Updated

Estimated downstream stretches on Clinton River

none from a report; 1 route below outlets with a status

No stretch below a reported discharge has a current status here as of Nov 4, 2026, 8:25 PM EST. The routes below wastewater outlets carry the status shown on each.

Estimated routes below wastewater outlets

1 route below outlets
  • Caution Permit MI0023647, outlet 003 · 9.962 kilometres estimated · Estimate stops at a lake or bay

Source: DirtyWaterWatch estimates using U.S. Geological Survey river maps and flow measurements. The estimate stops at tidal water, the first lake or the distance limit.

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.
  • Discharge likely or possible: heavy rain, no report received: to the latest update
    Radar estimate, no report received: heavy rain at the outlets of City of Mount Clemens

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 affecting the Clinton River in Michigan, last 12 months11 affecting this stretch: 1 reported on the Clinton River; none arriving from upstreamDecember 2025 to November 2026Verified reports where available, else notices; revisions and duplicates counted once. Arriving discharges are estimated from modeled downstream reaches.
  • Days with a discharge affecting the Clinton River in Michigan, last 12 months3Reported on the Clinton River in Michigan: 3 · Arriving from outfalls upstream, estimated: 0 (counted apart; together they need not equal the total)December 2025 to November 2026A day counts once however many discharges were under way on it.
  • Hours with a discharge or advisory status on the Clinton River in Michigan, last 12 months47Reported on the Clinton River in Michigan: 47 · Arriving from outfalls upstream, estimated: 0December 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 on the Clinton River in Michigan0.0%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.
  • Records behind the last-90-days strip for the Clinton River in Michigan1Reported on the Clinton River in Michigan: 0 · Arriving from outfalls upstream, estimated: 0 · Other records (rain-likely and similar): 1last 90 daysEvery distinct record the strip lists for its red, yellow and unresolved hours, notices and unresolved reports included; counted as the strip counts them.

Combined sewer overflow (CSO): sewage mixed with rainwater spills from a shared sewer system. 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. Outfall: a pipe or outlet where wastewater enters a water body.

Reported discharges per month

10 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 this water had a discharge or advisory status under DirtyWaterWatch rules.

  • Discharge or advisory reported

10 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.

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

312 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 292 reports that gave a volume as a number (20 did not).

20 of 312 discharge reports gave no volume as a number; only numbers are summed. 2 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

10 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.

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

10 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.

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 62, 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.

  • U.S. Environmental Protection Agency sewer overflow records: records from May 3, 2022 to the latest update (limited records)
  • mi-egle-mienviro-cso-sso-list: records from January 1, 2001 to the latest update

Reports linked to Clinton River

Reports linked to Clinton River, newest first
WhenReportStatus
to Apr 17, 2:56 AMClinton River Water Resources Recovery Facility Drainage District · 001 Concrete spillway · Blended · 7.1 million gallons report · notice · mapended
to 5:20 PMCharter Township of Clinton - Department of Public Services · Tulio EBOPS - Little Mack and Tulio Storm Sewer System · SSO · 90,000 gallons report · notice · mapended
to Jan 28 ’24, 10:30 AMClinton River Water Resources Recovery Facility Drainage District · 001 Concrete Spillway · Blended · 15.13 million gallons report · notice · mapended
to 11:30 PMCity of Mount Clemens · OUTFL - Outfalls of Mount Clemens · CSO · 2.91 million gallons report · notice · mapended
to Aug 25 ’23, 8:50 AMClinton River Water Resources Recovery Facility Drainage District · 001 Concrete spillway · Bypass · 3.95 million gallons report · notice · mapended
to 6:00 PMCharter Township of Clinton · Harper Pump Station Bypass Pumping - Bypass Pump Failure into Stone Parking Lot · SSO · 1,000 gallons report · notice · mapended
to 7:35 PMClinton River Water Resources Recovery Facility Drainage District · 001 Concrete Spillway / Discharge to Clinton River · Bypass · 1.68 million gallons report · notice · mapended
to 6:35 PMOakland County Water Resources Commissioner · Near [house number removed] East Howard Street in the City of Pontiac - On East Howard Street, East of Sheridan Near [house number removed] Howard Street · SSO · 450 gallons report · notice · mapended
to 11:00 AMClinton River Water Resources Recovery Facility Drainage District · Clinton River · Bypass · 6,000 gallons report · notice · mapended
to 2:51 PMOakland County Water Resources Commissioner's Office (sanitary systems) · SSO Discharge from POT 130 226 - Manhole POT 130 [house number removed] located on Woodward Ave. North of Osmun · SSO · 18 gallons report · notice · mapended
to 6:00 PMRochester University · Private Residence Address - Small Culvert · SSO · 2 gallons report · notice · mapended
to 9:30 PMClinton River Water Resources Recovery Facility Drainage District · 001 Concrete Spillway · Bypass · 4.4 million gallons report · notice · mapended
to 11:52 AMOakland County Water Resources Commissioners · Private Residence Address - Street · SSO · 250 gallons report · notice · mapended
to 6:00 PMOakland County Water Resources Commissioner · Wilson Avenue and Martin Luther King Jr. Blvd - West of Martin Luther King Jr. Blvd along Wilson Avenue · SSO · 40 gallons report · notice · mapended
to Jul 25 ’21, 1:26 AMClinton River Water Resources Recovery Facility Drainage District · 001 Concrete · Blended · 2 million gallons report · notice · mapended
to Jun 26 ’21, 1:03 AMClinton River Water Resources Recovery Facility Drainage District · 001 Concrete · Blended · 2 million gallons report · notice · mapended
to 10:15 AMClinton River Water Resources Recovery Facility Drainage District · n/a - Grass · Bypass · 400 gallons report · notice · mapended
to Jan 12 ’20, 9:30 AMClinton River Water Resources Recovery Facility Drainage District · 001A Concrete Spillway / Discharges to Clinton River · Bypass · 14 million gallons report · notice · mapended
to 11:00 AMCity of Mount Clemens · Private Residence Address - Catch Basin · SSO · 100 gallons report · notice · mapended
to 11:15 PMCharter Township of Clinton - Department of Public Services · Private Residence Address - Storm sewer structure · SSO · 100,000 gallons report · notice · mapended
to 2:35 PMOakland Co Water Resources Commissioner · sanitary manhole - POT018207 to POT081160 - to catch basin - Catchbasin · SSO · 150 gallons report · notice · mapended
to May 11 ’19, 6:00 AMCity of Mount Clemens · 003 003 · CSO · 13.67 million gallons report · notice · mapended
to May 4 ’19, 6:00 AMCity of Mount Clemens · 003 003 · CSO · 5.67 million gallons report · notice · mapended
to 10:40 AMCity of Mount Clemens · Belleview and S. Gratiot · SSO · 1,000 gallons report · notice · mapended
to 5:00 PMClinton River Water Resources Recovery Facility Drainage District · Auburn WWTP · SSO · 18 gallons report · notice · mapended

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

Showing the latest 25 records of 313 records.See them all with filters.

All reports in Michigan by year: 2026 (1 here) · 2025 (1 here) · 2024 (1 here) · 2023 (4 here) · 2022 (3 here) · 2021 (6 here) · 2020 (2 here) · 2019 (5 here) · 2018 (16 here) · 2017 (14 here) · 2016 (10 here) · 2015 (10 here) · 2014 (21 here) · 2013 (24 here) · 2012 (9 here) · 2011 (46 here) · 2010 (14 here) · 2009 (21 here) · 2008 (21 here) · 2007 (10 here) · 2006 (13 here) · 2005 (8 here) · 2004 (5 here) · 2003 (6 here) · 2002 (4 here) · 2001 (38 here)

Wastewater outlets on this water

No wastewater outlet in our records is linked to this water.

Sewer operators listed for this water: City of Mount Clemens (MT CLEMENS WWTP), Clinton River Water Resources Recovery Facility Drainage District, Oakland County Water Resources Commissioner's Office (sanitary systems), Charter Township of Clinton - Department of Public Services, City of Warren, Village of Almont.

Boat launches

Source: OpenBoatLaunch launch records (public agency data and OpenStreetMap, Open Database License). · Clinton River on OpenBoatLaunch

Nearby waters

Sources covering this water

312 records linked to this water, besides 1 earlier version or duplicate. Updated .