DirtyWaterWatch Public waters. Public record.

Michigan / Waters /

Lake Erie

Lake in Michigan, near Berlin Charter Township, Bolles Harbor, Cherry Island, East Rockwood, Erie Township, Estral Beach, Milleville Beach and Rockwood

Current status

No current status shown

No current status is assigned to this water outline. Check the water page for reports and any estimated downstream stretches. Why this status, and its source

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. Larger round markers with a label mark beach and other official advisories nearby.

Check City of Monroe's notices · Bookmark this water page and check it before each trip · Report a missing notice or error

About this status

No current status shown: no report we track sets a status on this water now; how statuses work. No status does not mean the water is safe. Follow posted signs and local health advice.

Sources checked: a public source (last successful check 2026-11-05 06:08 UTC); a public source (last successful check 2026-11-05 06:08 UTC); EGLE MiEnviro CSO/SSO List (last successful check 2026-11-05 06:12 UTC). Status by DirtyWaterWatch, updated 2026-11-05 06:27 UTC. · Updated

Estimated downstream stretches on Lake Erie

none with a current status

No downstream stretch has a current status here as of Nov 5, 2026, 1:27 AM EST. Check the reports below.

Estimated routes below wastewater outlets

2 routes below outlets
  • No current status shown Permit MI0028401, outlet 001 · 40 kilometres estimated · Estimate stops here
  • No current status shown Permit MI0028401, outlet SLD2 · 40 kilometres estimated · Estimate stops here

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.

No discharge, advisory or caution periods are shown for this water 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 06:27 UTC.

Reported discharges over time

  • Discharges affecting Lake Erie in Michigan, last 12 months0December 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 Lake Erie in Michigan, last 12 months0December 2025 to November 2026A day counts once however many discharges were under way on it.
  • Hours with a discharge or advisory status on Lake Erie in Michigan, last 12 months0December 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 Lake Erie 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 Lake Erie in Michigan0last 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.

This record covers Lake Erie within Michigan; the same lake in another state is a separate record.

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

5 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 5, 2026.

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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

Source: mi-egle-mienviro-cso-sso-list. Records cover January 1, 2001 to November 5, 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 5, 2026.

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Reported discharges per year, 2001 to 2026

39 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 5, 2026.

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Reported volume per year

Gallons (axis: K thousand, M million), summed from the 39 reports that gave a volume as a number.

Source: mi-egle-mienviro-cso-sso-list. Records cover January 1, 2001 to November 5, 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

Source: mi-egle-mienviro-cso-sso-list. Records cover January 1, 2001 to November 5, 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

Source: mi-egle-mienviro-cso-sso-list. Records cover January 1, 2001 to November 5, 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 5, 2026.

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Reported discharges by wastewater outlet

Wastewater outlets with the most tracked discharge records: 9 of 9, 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 5, 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 Lake Erie

Reports linked to Lake Erie, newest first
WhenReportStatus
to Jan 27 ’24, 4:00 AMCity of Monroe · 001 Partially treated water was sent through the plant outfall · Bypass · 8.23 million gallons report · notice · mapended
to Jan 27 ’24, 9:30 AMCity of Monroe · MH-Sterling State Park - Open field within the park · SSO · 390,000 gallons report · notice · mapended
to Aug 25 ’23, 4:45 PMCity of Monroe · 001 Partially treated water sent through the plant outfall · Bypass · 19.1 million gallons report · notice · mapended
to Aug 25 ’23, 9:00 AMCity of Monroe · Manhole - Manhole on Sunset Blvd · SSO · 75,000 gallons report · notice · mapended
to 1:00 PMCity of Monroe · 001 Wet Weather clarifiers · Bypass · 5.13 million gallons report · notice · mapended
to 7:15 PMCity of Monroe · Sunset Blvd - Manhole directly upstream of Sunset pump station · SSO · 50,000 gallons report · notice · mapended
to 10:55 AMMonroe · 001A final outfall · Bypass · 1.76 million gallons report · notice · mapended
to 4:30 PMMonroe · 001A final outfall · SSO · 7.99 million gallons report · notice · mapended
to Jun 16 ’15, 6:00 PMMonroe · 001A final outfall · SSO · 12.96 million gallons report · notice · mapended
to 11:00 AMMonroe · Private Residence Address - manhole · SSO · 30,000 gallons report · notice · mapended
to Jun 1 ’15, 10:15 AMMonroe · 001D · SSO · 6.73 million gallons report · notice · mapended
to 7:00 PMMonroe · Private Residence Address - manhole · SSO · 90,000 gallons report · notice · mapended
to 4:15 AMMonroe · 001D · SSO · 2.2 million gallons report · notice · mapended
to Jul 10 ’13, 9:00 AMLaSalle Township · manholes on Ave D - manholes · SSO · 5,000 gallons report · notice · mapended
to Jul 2 ’13, 7:30 AMMonroe · 001D · SSO · 3.1 million gallons report · notice · mapended
to Mar 16 ’12, 5:00 PMMonroe · 001D · SSO · 4.34 million gallons report · notice · mapended
to Nov 30 ’11, 11:00 AMMonroe · State Park Road/Sterling St Pk entrance - manhole · SSO · 500,000 gallons report · notice · mapended
to Dec 2 ’11, 12:00 PMMonroe · 001D · SSO · 15.64 million gallons report · notice · mapended
to 7:30 PMMonroe · 001D · SSO · 3.75 million gallons report · notice · mapended
to May 30 ’11, 3:30 PMMonroe · 001D · SSO · 2.25 million gallons report · notice · mapended
to May 27 ’11, 7:30 AMMonroe · 001D · SSO · 2.31 million gallons report · notice · mapended
to 7:30 AMMonroe · 001D · SSO · 122,000 gallons report · notice · mapended
to Apr 26 ’11, 8:00 AMMonroe · 001D · SSO · 855,000 gallons report · notice · mapended
to Mar 10 ’11, 1:00 AMMonroe · 001D · SSO · 222,000 gallons report · notice · mapended
to Mar 6 ’11, 8:00 PMMonroe · 001D · SSO · 5.06 million 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 39 records.See them all with filters.

All reports in Michigan by year: 2024 (2 here) · 2023 (3 here) · 2021 (1 here) · 2018 (1 here) · 2015 (5 here) · 2014 (1 here) · 2013 (2 here) · 2012 (1 here) · 2011 (9 here) · 2009 (4 here) · 2008 (5 here) · 2007 (4 here) · 2003 (1 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 Monroe.

Boat launches

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

Nearby waters

Sources covering this water

39 records linked to this water. Updated .