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Michigan / Sewer operators /

Dorr-Leighton Wastewater Authority

Sewer operator · Michigan · Wayland

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)
MI0055107
Wastewater outlets
2 treatment plant outfalls listed by EPA or state agencies; no combined sewer outfall is listed · List
Waters listed as receiving wastewater
Green Lake Creek
Tracked waters
Unnamed tributary to Rabbit River, MI, Rabbit River, MI, Lake Creek, MI
Discharge records counted
17 records · latest
Total reported volume in these records
4,737,193 gallons across the 15 records that give a volume (2 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 Dorr-Leighton Wastewater Authority or the state publishes its notices (check them for an alert sign-up):

Its public-notice channels

Source: Dorr-Leighton Wastewater Authority'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.

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

Treatment plant outfalls

2 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. Treatment bypass: wastewater skips one or more treatment steps.

Reports linked to Dorr-Leighton Wastewater Authority, newest first
WhenReportStatus
to 11:00 PM“Green Lake Stream” · Green Lake Stream - Designed discharge rocky flow over to Green Lake Stream between farmers property's. · SSO · 354,000 gallons report · noticeended
to 7:00 PM“no name drainage ditch” · Dorr Exxon truck Stop entrance - [house number removed] 142nd St Dorr MIchigan 49348 · SSO · 2,500 gallons report · noticeended
to Jun 27 ’21, 2:30 AM“Green Lake Stream” · Green Lake Steam - Mile east of WWTP · Bypass · 475,080 gallons in all ended
to 10:00 AM“Green lake stream” · Green lake stream - Gravity into stream · Bypass · 0 gallons report · noticeended
to Apr 20 ’13, 1:00 PM“Green Lake Stream” · Green Lake Stream · SSO · 148,928 gallons report · noticeended
to Apr 10 ’10, 1:30 AMRabbit River · Moline Storm Drain · SSO · 500 gallons report · notice · mapended
Lake Creek · 144th Ave. and 12th Street - Force main break · SSO · volume not reported report · notice · mapended
to 10:00 AMWater not mapped · 12th Street and 144th - Bear Creek Storm Drain · SSO · 3,500 gallons report · noticeended
“Green Lake Stream” · Green Lake Stream · SSO · volume not reported report · noticeended
to Oct 31 ’09, 12:25 PM“Green Lake Stream” · Green Lake Stream · SSO · 612,804 gallons report · noticeended
to Dec 28 ’08, 10:00 AM“Green Lake Stream” · Green Lake Stream · SSO · 1.3 million gallons report · noticeended
to Sep 14 ’08, 12:00 PM“Green Lake Stream” · Green Lake Stream · SSO · 499,700 gallons report · noticeended
to Jul 3 ’08, 2:30 PM“Green Lake Stream” · Green Lake Stream · SSO · 460,825 gallons report · noticeended
to Jun 8 ’08, 6:00 PM“Green Lake Stream” · [house number removed] South Division, Moline MI · SSO · 871,420 gallons report · noticeended
to 3:30 PMWater not mapped · 12th Street between 146th and 147th - Force main break caused by excavation contractor · SSO · 2,936 gallons report · noticeended
to 2:00 PMLake Creek · 144th Ave. and 12th Street - Force main break · SSO · 5,000 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

All reports in Michigan by year: 2026 (1 from Dorr-Leighton Wastewater Authority) · 2021 (4 from Dorr-Leighton Wastewater Authority) · 2013 (1 from Dorr-Leighton Wastewater Authority) · 2010 (2 from Dorr-Leighton Wastewater Authority) · 2009 (3 from Dorr-Leighton Wastewater Authority) · 2008 (4 from Dorr-Leighton Wastewater Authority) · 2005 (1 from Dorr-Leighton Wastewater Authority) · 2003 (1 from Dorr-Leighton Wastewater Authority)

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 Dorr-Leighton Wastewater Authority, last 12 months1December 2025 to November 2026Verified reports where available, else notices; revisions and duplicates counted once.
  • Days with a discharge reported by Dorr-Leighton Wastewater Authority, last 12 months1December 2025 to November 2026A day counts once however many discharges were under way on it.
  • Hours with a discharge or advisory status from Dorr-Leighton Wastewater Authority's reports, last 12 months6December 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 (Dorr-Leighton Wastewater Authority)0.0%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.

Combined sewer overflow (CSO): sewage mixed with rainwater spills from a shared sewer system. Blended discharge: wastewater that skipped some treatment is mixed with treated wastewater.

Reported discharges per month

1 reported discharge, 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

2 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

17 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 15 reports that gave a volume as a number (2 did not).

2 of 17 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

2 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

2 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 10, 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