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Michigan / Sewer operators /

Oakland County Water Resources Commissioner's Office (sanitary systems)

Sewer utility · Michigan · Novi

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.

Ringed dots mark treatment plant outfalls. Square boat markers mark boat launches listed by OpenBoatLaunch.

Federal wastewater discharge permit (NPDES)
MI0024287, MIG081315, 3112a-0078, 3112a-0615, 3112a-0632, 3112a-0814, 3112a-0936, 3112a-0985, GW1110644
Wastewater outlets
3 treatment plant outfalls listed by EPA or state agencies; no combined sewer outfall is listed · List
Waters listed as receiving wastewater
not recorded
Tracked waters
Clinton River, MI, Unnamed tributary to Walled Lake Branch, MI, Walled Lake Branch, MI, Middle River Rouge, MI, Upper River Rouge, MI
Discharge records counted
54 records · latest
Total reported volume in these records
6,027,977 gallons across the 51 records that give a volume (3 without one)

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 Oakland County Water Resources Commissioner's Office (sanitary systems) or the state publishes its notices (check them for an alert sign-up):

Its public-notice channels

Source: Oakland County Water Resources Commissioner's Office (sanitary systems)'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

Wastewater outlets

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

3 treatment plant outfalls listed by EPA or state agencies; no combined sewer outfall is listed.

Treatment plant outfalls

3 outfalls

Source: U.S. Environmental Protection Agency (EPA) permit records (ICIS-NPDES permitted features): where a treatment plant’s permitted discharge leaves. No national source says whether a plant outfall is open or closed.

Reports and advisories

Sanitary sewer overflow (SSO): sewage spills from a sewer meant to carry sewage separately from rainwater.

Reports linked to Oakland County Water Resources Commissioner's Office (sanitary systems), newest first
WhenReportStatus
Water not mapped · SSO · volume not reported report · noticeongoing
to 3:30 PMWater not mapped · Gravel area at MH BLT013108 located on MLK Blvd approximately 1,000 ft NE of Woodward Ave. · SSO · 100 gallons report · noticeended
to 2:35 PMWater not mapped · Sanitary Sewer Pump Station · SSO · 150 gallons report · noticeended
to 3:45 PMWater not mapped · Lower Pettibone Lake Sanitary Drain in Highland Township - Grassy area/lawn located near [house number removed] Highland Drive, Highland Township, MI · SSO · 5 gallons report · noticeended
to 10:40 AM“Pebble Creek” · [house number removed] Danvers Court, Farmington Hills, MI · SSO · 750 gallons report · noticeended
to Aug 8, 11:26 AMWater not mapped · Lawn · SSO · 400 gallons report · noticeended
to 7:00 PMWater not mapped · West Fairmount at the North Hill Farm Apartments · SSO · 10 gallons report · noticeended
to Jul 19, 12:00 AMWater not mapped · Euclid Avenue (between Legrande Avenue and Jefferson Street), Pontiac, MI · SSO · 10 gallons report · noticeended
to 10:30 AM“Unnamed small detention basin north of Indian Lake Rd” · Indian Lake Rd and Paradise Trail - Greenbelt north of Indian Lake, West of Paradise Trail · SSO · 750 gallons report · noticeended
to 2:00 PMWater not mapped · Arlene Avenue - Between Clara Avenue and E Columbia Avenue · SSO · 499 gallons report · noticeended
to 10:10 PM“Rouge River” · Hooper Blvd. Southfield MI - Ravine at the west end of Hooper Blvd. in Southfield · SSO · 500 gallons report · noticeended
to 3:00 PMWater not mapped · Parkdale Ave - Discharge occured at a manhole located near [house number removed] Parkdale Ave. The discharge flowed onto Parkdale Avenue and into a catch basin on the north side of the street. · SSO · 10 gallons report · noticeended
to 11:30 AMWater not mapped · 12 Mile and Middlebelt · SSO · 400 gallons report · noticeended
to 1:26 PM“Open ditch along the north side of I696 tributary to the Minnow Pond Chapter 20 Drain” · Twelve Mile & I-696 Lift Station - Grassy area at the Twelve Mile & I-696 Lift Station located south of [house number removed] Mile Road, north of I-696, west of Farmington Road in Farmington Hills, MI · SSO · 500 gallons report · noticeended
to 11:30 AMWater not mapped · Martin Luther King Jr. Blvd. North - Between University Dr. and Featherstone Dr in road surface of MLK Jr. Blvd North · SSO · 750 gallons report · noticeended
to 4:40 PMWater not mapped · Featherstone Street and MLK Jr. Blvd, Pontiac - Discharge occurred at a manhole in the right of way on the north side of Featherstone Street, approximately 350 feet east of MLK Blvd. The discharge flowed onto Featherstone Street and into two catch basins on the north side of Featherstone Street. · SSO · 60 gallons report · noticeended
to 6:25 AM“Rouge River” · 8 Mile Overflow Chamber - 8 Mile overflow chamber weir overtopped · SSO · 2.75 million gallons report · noticeended
to 8:00 PM“Retention pond” · Manhole near walking path. · SSO · 500 gallons report · noticeended
to 11:00 PMWater not mapped · [house number removed] Hillsmont Avenue · SSO · 3 gallons report · noticeended
to 11:40 AMWater not mapped · Seymore Lake Road Ditch - Overgrown ditch · SSO · 2,000 gallons report · noticeended
to 4:47 PM“Pebble Creek” · Manhole FAT 052 101 - Discharge area is in a greenspace within a commercial area near a I-696 and Inkster · SSO · 1.5 million gallons report · noticeended
to 2:30 PMWater not mapped · Cobblestone Pump Station - Rotted pipe at pump station · SSO · 2,000 gallons report · noticeended
to 3:30 PMWater not mapped · [house number removed] University Dr - Sanitary Sewer Manhole · SSO · 5 gallons report · noticeended
to 9:30 PMWater not mapped · E Walton Blvd and Stirling Lakes Drive, Pontiac - Discharge occurred at a manhole located in a median on Stirling Lake Drive at the intersection of Stirling Lakes Dr and Walton Blvd. The discharge flowed onto Walton Blvd and into a catch basin east of Stirling Lakes Dr on the north side of Walton Blvd. · SSO · 60 gallons report · noticeended
to 11:55 AMWater not mapped · Elizabeth Lake Pump Station - Pressure Hatch and nearby ditch line · SSO · 30 gallons report · noticeended

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 54 records.See them all with filters.

All reports in Michigan by year: 2026 (11 from Oakland County Water Resources Commissioner's Office (sanitary systems)) · 2025 (7 from Oakland County Water Resources Commissioner's Office (sanitary systems)) · 2024 (6 from Oakland County Water Resources Commissioner's Office (sanitary systems)) · 2023 (4 from Oakland County Water Resources Commissioner's Office (sanitary systems)) · 2022 (7 from Oakland County Water Resources Commissioner's Office (sanitary systems)) · 2021 (12 from Oakland County Water Resources Commissioner's Office (sanitary systems)) · 2020 (2 from Oakland County Water Resources Commissioner's Office (sanitary systems)) · 2011 (1 from Oakland County Water Resources Commissioner's Office (sanitary systems)) · 2004 (1 from Oakland County Water Resources Commissioner's Office (sanitary systems)) · 2003 (1 from Oakland County Water Resources Commissioner's Office (sanitary systems)) · 2002 (1 from Oakland County Water Resources Commissioner's Office (sanitary systems)) · 2001 (1 from Oakland County Water Resources Commissioner's Office (sanitary systems))

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.

No discharge, advisory or caution periods are shown for the waters this sewer operator's reports were placed on 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 01:25 UTC.

Reported discharges over time

  • Discharges reported by Oakland County Water Resources Commissioner's Office (sanitary systems), last 12 months11December 2025 to November 2026Verified reports where available, else notices; revisions and duplicates counted once.
  • Days with a discharge reported by Oakland County Water Resources Commissioner's Office (sanitary systems), last 12 months12December 2025 to November 2026A day counts once however many discharges were under way on it.
  • Hours with a discharge or advisory status from Oakland County Water Resources Commissioner's Office (sanitary systems)'s reports, last 12 months194December 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 (Oakland County Water Resources Commissioner's Office (sanitary systems))4.3%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.

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

35 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.

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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

3 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.

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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

54 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 51 reports that gave a volume as a number (3 did not).

3 of 54 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

3 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.

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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

3 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.

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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 50, 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.

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