DirtyWaterWatch Public waters. Public record.

Michigan / Sewer operators /

City of Kalamazoo

Sewer utility · Michigan · Kalamazoo

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)
3112a-0546, MI0023299
Wastewater outlets
2 treatment plant outfalls listed by EPA or state agencies; no combined sewer outfall is listed · List
Waters listed as receiving wastewater
Davis Creek; Portage Creek; Monarch Millpond; Canterbury House Apartments Pond - SE of Overflow; STDBKC190010 - Detention Basin
Tracked waters
Kalamazoo River, MI, Davis Creek, MI, Monarch Millpond, MI, Valley Lake, MI
Discharge records counted
90 records · latest
Total reported volume in these records
1,900,487 gallons across the 90 records that give a volume

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 City of Kalamazoo or the state publishes its notices (check them for an alert sign-up):

Its public-notice channels

Source: City of Kalamazoo'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.

Reports linked to City of Kalamazoo, newest first
WhenReportStatus
to 3:40 PMWater not mapped · Manhole located off the North East corner of the building. · SSO · 300 gallons report · noticeended
to 10:55 AMWater not mapped · Manhole KC 11077 - Spring Valley Park - [house number removed] Mount Olivet Road · SSO · 200 gallons report · noticeended
to 5:30 PMWater not mapped · Manhole KC 11077 - Spring Valley Park - [house number removed] Mount Olivet Road · SSO · 500 gallons report · noticeended
to 2:35 PMWater not mapped · Private Cleanout in Driveway · SSO · 50 gallons report · noticeended
to 7:56 PMWater not mapped · Manhole: KC16443 - Manhole in the middle of W. Lovell St at Eldred St. · SSO · 50 gallons report · noticeended
to 3:50 PMDavis Creek · [house number removed] Block Emerald Drive - [house number removed] Block Emerald Drive - Plugged sewer pipe wastewater seeped through cracks in street · SSO · 10,000 gallons report · notice · mapended
to 12:00 PMWater not mapped · Private Sanitary Sewer Manhole on East Side of Property. · SSO · 150 gallons report · noticeended
to 8:20 AMWater not mapped · Augusta Lift Station - Lift Station SE Corner of North Webster and East Van Buren Street, Augusta MI · SSO · 100 gallons report · noticeended
to 12:35 PMWater not mapped · Manhole: KC27140-439 - Manhole on the corner of Bryant St & Belford St · SSO · 800 gallons report · noticeended
to May 28, 12:30 AMWater not mapped · Discharge from Manhole #KC14306 into Catch Basin #STCKBKT14485 - Overflowed from manhole, down the road, alongside some grass and dirt, into catch basin. · SSO · 200 gallons report · noticeended
to 10:40 PMWater not mapped · Overflow from cleanout that puddled in gravel driveway, onto concrete sidewalk · SSO · 50 gallons report · noticeended
to 4:45 PMWater not mapped · Overflow from manhole onto the residence's yard. Settled in yard around manhole · SSO · 100 gallons report · noticeended
to Apr 16, 1:15 PMWater not mapped · FM-0599 [house number removed] Bronson Boulevard · SSO · 6,000 gallons report · noticeended
to 4:31 PM“Portage Creek” · Privately owned manhole at Candlewyck Apartments · SSO · 500 gallons report · noticeended
to 2:28 PMWater not mapped · Private Sewer Lateral Overflowed from Cleanout, spilled down driveway to sidewalk · SSO · 5 gallons report · noticeended
to 8:00 PMWater not mapped · KT25062 - [house number removed] South Sprinkle Road, Kalamazoo Mi · SSO · 50 gallons report · noticeended
to 2:57 PMWater not mapped · Greenleaf Blvd and Greenleaf Circle - On lawn at Manhole · SSO · 200 gallons report · noticeended
to 2:24 PMWater not mapped · KC29374 - [house number removed] Whites Road · SSO · 200 gallons report · noticeended
to 2:41 PMMonarch Millpond · Outfall: STOWKC34382 - Manhole: KC34096 - Manhole in street, in front of [house number removed] Sunnock Ave - Outfall downstream from manhole on edge of Monarch Mill Pond/Portage Creek · SSO · 300 gallons report · notice · mapended
to 3:00 PM“Canterbury House Apartments Pond - SE of Overflow” · [house number removed] Dragonfly Road, Kalamazoo, MI 49007, USA · SSO · 500 gallons report · noticeended
to 9:30 PMWater not mapped · STOGKC29382 - Whites and Parkview outfall to ground · SSO · 500 gallons report · noticeended
to 2:45 PMWater not mapped · Sewer cleanout located on the 1800 block of Homecrest Avenue · SSO · 5 gallons report · noticeended
to 8:10 PMWater not mapped · Sanitary Sewer Lift Station just North of [house number removed] Haymac Drive - Sanitary Sewer Lift Station · SSO · 30 gallons report · noticeended
to 3:58 PMWater not mapped · Manhole (KC19139) - Manhole east of apartment building 4410 Lilac Lane, Kalamazoo, MI 49007 · SSO · 300 gallons report · noticeended
to Mar 31 ’25, 1:30 AMDavis Creek · Emerald Dr. and Miller Rd - STOWKC257 · SSO · 10,000 gallons report · notice · mapended

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 90 records.See them all with filters.

All reports in Michigan by year: 2026 (18 from City of Kalamazoo) · 2025 (9 from City of Kalamazoo) · 2024 (12 from City of Kalamazoo) · 2023 (15 from City of Kalamazoo) · 2022 (8 from City of Kalamazoo) · 2021 (8 from City of Kalamazoo) · 2020 (9 from City of Kalamazoo) · 2019 (11 from City of Kalamazoo)

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 City of Kalamazoo, last 12 months19December 2025 to November 2026Verified reports where available, else notices; revisions and duplicates counted once.
  • Days with a discharge reported by City of Kalamazoo, last 12 months22December 2025 to November 2026A day counts once however many discharges were under way on it.
  • Hours with a discharge or advisory status from City of Kalamazoo's reports, last 12 months93December 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 (City of Kalamazoo)0.6%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

62 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 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.

Show table

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.

Show table

Reported discharges per year, 2001 to 2026

90 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 90 reports that gave a volume as a number.

Source: mi-egle-mienviro-cso-sso-list. Records cover January 1, 2001 to November 4, 2026.

Show table

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.

Show table

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.

Show table

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.

Show table

Reported discharges by wastewater outlet

Wastewater outlets with the most tracked discharge records: 10 of 89, 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.

Show table
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