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Michigan / Waters /

Lower River Rouge

River in Michigan, past Dearborn Heights and Wayne

Current status

Discharge or advisory reported

A discharge is reported as ongoing, a post-discharge period applies, or an official advisory is listed. Open the report for its source, dates and advice. This status since . Why this status, and its source

This status counts every report affecting this water, including discharges arriving from upstream.

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 Dearborn (DEARBORN CSO)'s notices · Bookmark this water page and check it before each trip · Report a missing notice or error

About this status

Discharge or advisory reported: discharge reported as ongoing; shown while reported ongoing, up to 7 days without an end (site rule). 5.6 in of rain fell in the 24 hours to Nov 4, 2026, 7:00 PM EST at City of Dearborn (DEARBORN CSO)'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

Reports behind this status

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

Reports behind the status of Lower River Rouge, newest first
WhenReportStatus
City of Dearborn Heights, Wayne County Department of Public Services, Environmental Services Division · CSO · volume in each report mapto Nov 5, 4:50 PM
Wayne County · CSO · volume not reported report · notice · mapto Nov 5, 4:50 PM
City of Dearborn · CSO · volume in each report mapto Nov 5, 4:22 PM
City of Dearborn · CSO · 1.27 million gallons in all mapto Nov 15, 2:23 PM

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.

Estimated downstream stretches on Lower River Rouge

60 estimated stretches from 1 outlet

Estimated downstream stretch — not checked by water sampling. Estimated by DirtyWaterWatch using U.S. Geological Survey river maps and flow measurements; not an official advisory area. This estimates water movement, not bacteria levels.

  • Discharge or advisory reported 0 to 5.7 kilometres below the outlet

    0 to 5.7 kilometres below the outlet · from City of Dearborn

    Estimated travel time from outlet 001: about 6 hours, or as little as 3 hours. Estimate based on the river's average yearly flow; no current gauge reading was available.

  • Discharge or advisory reported 0 to 5.7 kilometres below the outlet

    0 to 5.7 kilometres below the outlet · from City of Dearborn

    Estimated travel time from outlet 001: about 6 hours, or as little as 3 hours. Estimate based on the river's average yearly flow; no current gauge reading was available.

  • End not confirmed 0 to 5.7 kilometres below the outlet

    0 to 5.7 kilometres below the outlet · from City of Dearborn

    Estimated travel time from outlet 001: about 6 hours, or as little as 3 hours. Estimate based on the river's average yearly flow; no current gauge reading was available.

  • End not confirmed 0 to 5.7 kilometres below the outlet

    0 to 5.7 kilometres below the outlet · from City of Dearborn

    Estimated travel time from outlet 001: about 6 hours, or as little as 3 hours. Estimate based on the river's average yearly flow; no current gauge reading was available.

  • Discharge or advisory reported 5.7 to 12.7 kilometres below the outlet

    5.7 to 12.7 kilometres below the outlet · from City of Dearborn

    Estimated travel time from outlet 001: about 11 hours, or as little as 6 hours. Estimate based on the river's average yearly flow; no current gauge reading was available.

  • Discharge or advisory reported 5.7 to 12.7 kilometres below the outlet

    5.7 to 12.7 kilometres below the outlet · from City of Dearborn

    Estimated travel time from outlet 001: about 11 hours, or as little as 6 hours. Estimate based on the river's average yearly flow; no current gauge reading was available.

  • End not confirmed 5.7 to 12.7 kilometres below the outlet

    5.7 to 12.7 kilometres below the outlet · from City of Dearborn

    Estimated travel time from outlet 001: about 11 hours, or as little as 6 hours. Estimate based on the river's average yearly flow; no current gauge reading was available.

  • End not confirmed 5.7 to 12.7 kilometres below the outlet

    5.7 to 12.7 kilometres below the outlet · from City of Dearborn

    Estimated travel time from outlet 001: about 11 hours, or as little as 6 hours. Estimate based on the river's average yearly flow; no current gauge reading was available.

  • Discharge or advisory reported 12.7 to 13.7 kilometres below the outlet

    12.7 to 13.7 kilometres below the outlet · from City of Dearborn

    Estimated travel time from outlet 001: about 12 hours, or as little as 7 hours. Estimate based on the river's average yearly flow; no current gauge reading was available.

  • Discharge or advisory reported 12.7 to 13.7 kilometres below the outlet

    12.7 to 13.7 kilometres below the outlet · from City of Dearborn

    Estimated travel time from outlet 001: about 12 hours, or as little as 7 hours. Estimate based on the river's average yearly flow; no current gauge reading was available.

  • End not confirmed 12.7 to 13.7 kilometres below the outlet

    12.7 to 13.7 kilometres below the outlet · from City of Dearborn

    Estimated travel time from outlet 001: about 12 hours, or as little as 7 hours. Estimate based on the river's average yearly flow; no current gauge reading was available.

  • End not confirmed 12.7 to 13.7 kilometres below the outlet

    12.7 to 13.7 kilometres below the outlet · from City of Dearborn

    Estimated travel time from outlet 001: about 12 hours, or as little as 7 hours. Estimate based on the river's average yearly flow; no current gauge reading was available.

Showing 12 of 60 estimated stretches, nearest the outlets first.

Estimated routes below wastewater outlets

1 route below outlets
  • Discharge or advisory reported Permit MI0025542, outlet 001 · 40 kilometres estimated · Estimate stops at the 40-kilometre limit

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.

18 earlier periods appear as you scroll.

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 Lower River Rouge in Michigan, last 12 months9797 affecting this stretch: 96 reported on the Lower River Rouge; 1 arriving from outfalls further up the Lower River Rouge (City of Dearborn)December 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 Lower River Rouge in Michigan, last 12 months55Reported on the Lower River Rouge: 54 · Arriving from outfalls further up the Lower River Rouge (City of Dearborn), estimated: 1 (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 Lower River Rouge in Michigan, last 12 months955Reported on the Lower River Rouge: 954 · Arriving from outfalls further up the Lower River Rouge (City of Dearborn), estimated: 1December 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 Lower River Rouge in Michigan16%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 Lower River Rouge in Michigan35Reported on the Lower River Rouge: 35 · Arriving from outfalls further up the Lower River Rouge (City of Dearborn), estimated: 0last 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.

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

620 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

50 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. 2 discharges reported to last more than 31 days are counted as 31 days.

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

4,065 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 3,979 reports that gave a volume as a number (86 did not).

86 of 4,065 discharge reports gave no volume as a number; only numbers are summed.

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

50 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. 2 discharges reported to last more than 31 days are counted as 31 days.

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

50 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. 2 discharges reported to last more than 31 days are counted as 31 days.

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: 10 of 43, 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.

  • 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 Lower River Rouge

Reports linked to Lower River Rouge, newest first
WhenReportStatus
City of Dearborn Heights, Wayne County Department of Public Services, Environmental Services Division · CSO · volume in each report mapto Nov 5, 4:50 PM
Wayne County · CSO · volume not reported report · notice · mapto Nov 5, 4:50 PM
City of Dearborn · CSO · volume in each report mapto Nov 5, 4:22 PM
City of Dearborn · CSO · 1.27 million gallons in all mapto Nov 15, 2:23 PM
to 10:30 AMWayne County · 002 Middlebelt CSO Retention/Treatment Basin · CSO · 480,000 gallons report · notice · mapended
to 11:31 AMWayne County · 010 west of Beech Daly Road, Meadowdale Storm Sewer (Yale) · CSO · 2.3 million gallons report · notice · mapended
to 11:31 AMWayne County · L41 west of Beech Daly Road/Michigan Avenue intersection · CSO · 4.1 million gallons report · notice · mapended
to Oct 2, 7:17 AMCity of Dearborn · 001 west of Telegraph Road/Silvery Lane intersection, north bank · CSO · 1.61 million gallons report · notice · mapended
Ypsilanti Community Utilities Authority · Lower Rouge River · Bypass · volume in each report mapongoing
to 4:53 PMWayne County · L41 west of Beech Daly Road/Michigan Avenue intersection · CSO · 1.7 million gallons report · notice · mapended
to 4:53 PMWayne County · 010 west of Beech Daly Road, Meadowdale Storm Sewer (Yale) · CSO · 1.8 million gallons report · notice · mapended
to 3:11 PMCity of Dearborn · 001 west of Telegraph Road/Silvery Lane intersection, north bank · CSO · 240,000 gallons report · notice · mapended
to 5:20 PMCity of Dearborn · 001 west of Telegraph Road/Silvery Lane intersection, north bank · CSO · 990,000 gallons in all mapended
to 11:17 AMCity of Dearborn · 001 west of Telegraph Road/Silvery Lane intersection, north bank · CSO · 20,000 gallons report · notice · mapended
to 1:31 AMWayne County · L41 west of Beech Daly Road/Michigan Avenue intersection · CSO · 800,000 gallons report · notice · mapended
to 4:31 AMCity of Dearborn · 001 west of Telegraph Road/Silvery Lane intersection, north bank · CSO · 130,000 gallons report · notice · mapended
to 3:25 PMCity of Dearborn · 001 west of Telegraph Road/Silvery Lane intersection, north bank · CSO · 80,000 gallons report · notice · mapended
to 4:30 PMWayne County · 002 Middlebelt CSO Retention/Treatment Basin · CSO · 530,000 gallons report · notice · mapended
to 6:36 PMWayne County · L41 west of Beech Daly Road/Michigan Avenue intersection · CSO · 900,000 gallons report · notice · mapended

Download these reports as CSV

Showing the latest 25 records of 4,063 records.See them all with filters.

All reports in Michigan by year: 2026 (90 here) · 2025 (76 here) · 2024 (115 here) · 2023 (159 here) · 2022 (175 here) · 2021 (281 here) · 2020 (258 here) · 2019 (288 here) · 2018 (223 here) · 2017 (178 here) · 2016 (187 here) · 2015 (168 here) · 2014 (224 here) · 2013 (211 here) · 2012 (127 here) · 2011 (233 here) · 2010 (168 here) · 2009 (167 here) · 2008 (127 here) · 2007 (131 here) · 2006 (181 here) · 2005 (125 here) · 2004 (88 here) · 2003 (75 here) · 2002 (3 here) · 2001 (5 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 Dearborn (DEARBORN CSO), City of Dearborn Heights, Wayne County Department of Public Services, Environmental Services Division (WAYNE CO/DEARBORN HEIGHTS CSO), City of Inkster (INKSTER/DEARBORN HEIGHTS CSO), CITY OF WESTLAND, Wayne County (WAYNE CO/INKSTER CSO), Wayne County (WAYNE CO/INKSTER/DRBRN HTS CSO), Ypsilanti Community Utilities Authority, Wayne County Department of Public Services, Facilities Management Division, Western Townships Utilities Authority (WTUA).

Boat launches

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

Nearby waters

Sources covering this water

4,060 records linked to this water, besides 3 earlier versions or duplicates. Updated .