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Michigan / Waters /

Swartz Creek

Stream in Michigan, past Fenton, Flint, Grand Blanc, Holly and Mundy

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.

Check City of Flint'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: 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

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 the Swartz Creek 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 the Swartz Creek 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 the Swartz Creek 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 the Swartz Creek 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 Swartz Creek 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.

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

7 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

1 discharge report has no end time and is not marked ongoing; under DirtyWaterWatch rules it shows caution, not a discharge or advisory status, and adds no hours here.

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

23 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 19 reports that gave a volume as a number (4 did not).

4 of 23 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 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

1 discharge report has no end time and is not marked ongoing; under DirtyWaterWatch rules it shows caution, not a discharge or advisory status, and adds no hours here.

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

1 discharge report has no end time and is not marked ongoing; under DirtyWaterWatch rules it shows caution, not a discharge or advisory status, and adds no hours here.

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: 10 of 18, 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.

  • mi-egle-mienviro-cso-sso-list: records from January 1, 2001 to the latest update

Reports linked to Swartz Creek

Reports linked to Swartz Creek, newest first
WhenReportStatus
to 12:15 PMCity of Flint · Swartz Creek - [house number removed] Fenton Rd · SSO · 20 gallons report · notice · mapended
to Apr 6 ’23, 8:00 AMCity of Flint · [house number removed] Fenton rd - Swartz Creek · SSO · 500 gallons report · notice · mapended
to 1:00 PMCity of Flint · [house number removed] Durand St - Miller Rd & Ida St · SSO · 300 gallons report · notice · mapended
to 5:45 PMGenesee County Drain Commission - Division of Water and Waste Services · behind [house number removed] Miller Road, Flint Township - Unmaintained land around manhole · SSO · 15,000 gallons report · notice · mapended
to 8:00 AMCity of Flint · Sanitary Manhole by Fenton Road & Lexington Ave. · SSO · 200 gallons report · notice · mapended
to 9:30 AMCity of Flint · Near the intersection of Fenton Road and Barlow Avenue - Near [house number removed] Fenton Road in Flint Michigan · SSO · 200 gallons report · notice · mapended
to 12:30 PMCity of Flint · South of the intersection of Fenton Road and Barlow Avenue. - Near [house number removed] Fenton Road · SSO · 100 gallons report · notice · mapended
to 4:45 PMGenesee County Drain Commissioner Water and… · [house number removed] Miller Road, Flint, MI - Sanitary Sewer Pump Station, west of I-75 · SSO · 3,000 gallons report · notice · mapended
to Sep 25 ’21, 11:00 AMCity of Flint · 3rd Sanitary Manhole East of Parkside & Overhill Drive. - 3rd Sanitary Manhole East of Parkside & Overhill Drive -wood area-Swartz Creek Golf Course. · SSO · 500,000 gallons report · notice · mapended
to Sep 24 ’21, 7:00 AMCity of Flint · South of the intersection Fenton Road & Barlow Avenue in Flint - Sanitary Manhole south of the intersection Fenton Road & Barlow Avenue under the railroad bridge in Flint · SSO · 600,000 gallons report · notice · mapended
to Dec 11 ’18, 11:20 AMGM Flint Complex · 003 Swartz Creek · SSO · “< 275 gallons” report · notice · mapended
to 5:30 PMGeneral Motors · GM Flint Engine Operations, east side - sewer block with debrs · SSO · 100 gallons report · notice · mapended
to Aug 22 ’17, 2:00 PMCity of Flint · Cedar St at Swartz Creek - broken sewer line · SSO · volume not reported report · notice · mapended
to 8:30 PMGenesee County Drain Commissioner · PS#1 GCDC, [house number removed] Miller Rd, Flint Twp · SSO · 10,000 gallons report · notice · mapended
to Mar 18 ’14, 9:30 PMGeneral Motors · GM Flint Metal Center property - clogged sewer line · SSO · 226,500 gallons report · notice · mapended
to 4:06 PMFlint Twp · [house number removed] Claude Ave, x-country sewer behind address - plugged sewer · SSO · 500 gallons report · notice · mapended
to 1:00 PMGenesee County Drain Commissioner · PS#1 GCDC, [house number removed] Miller Rd, Flint Twp · SSO · 30,000 gallons report · notice · mapended
to 6:30 PMCity of Flint · Happy Hollow Nature Preserve, Flint - sewer blockage, overflow to river · SSO · 14,000 gallons report · notice · mapended
to Aug 4 ’09, 4:00 PMCity of Flint · Happy Hollow Nature Preserve, Flint - sewer blockage, overflow to river · SSO · 3,500 gallons report · notice · mapended
to 2:45 PMSwartz Creek · MH at [house number removed] Miller Rd - sewer blockage · SSO · 100 gallons report · notice · mapended
to Apr 7 ’03, 12:30 PMCity of Flint · Happy Hollow Nature Preserve, Flint - sewer blockage, overflow to river · SSO · 1,100 gallons report · notice · mapended
to May 3 ’01, 12:00 PMCity of Flint · Happy Hollow Nature Preserve, Flint - sewer blockage, overflow to river · SSO · volume not reported report · notice · mapended
Genesee County Drain Commissioner · PS#1 GCDC, [house number removed] Miller Rd, Flint Twp · SSO · volume not reported 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

All reports in Michigan by year: 2023 (3 here) · 2022 (4 here) · 2021 (3 here) · 2018 (1 here) · 2017 (3 here) · 2014 (1 here) · 2012 (1 here) · 2011 (1 here) · 2009 (3 here) · 2003 (1 here) · 2001 (2 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 Flint, Genesee County Drain Commission - Division of Water and Waste Services, GM Flint Complex.

Boat launches

No public boat launch is listed in our records for this water.

Nearby waters

Sources covering this water

23 records linked to this water. Updated .