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Sewage Collection

Sewage collection is provided to most properties in the urban area of Leamington.  Sewage is collected by means of sanitary sewers or combination sewers and transferred to the Leamington Pollution Control Centre for treatment prior to being released to Lake Erie. 

During storm events, combination sewers may reach capacity resulting in overflows to the natural environment at various overflow sites throughout the Municipality.  A summary of combined sewer overflow events for the current year, by location, is provided below and is updated following an event.  Previous year overflow events are summarized in the annual report found on the Plans, Publications, and Reports page.

CSO-1 - Lutsch Avenue - Sewer Overflow Event Report

Start Date

Start 

Time

End Date

End 

Time

Volume

(m3)

Cause of

Event

7-Mar-26

0:05

7-Mar-26

1:05

112.771

Wet Weather

11-Mar-26

3:15

11-Mar-26

14:10

4346.591

Wet Weather

26-Mar-26

19:30

6-Mar-6

19:55

38.79

Wet Weather

4-Apr-26

1:10

4-Apr-26

1:15

0.49

Wet Weather

15-Apr-26

2:35

15-Apr-26

3:00

14.135

Wet Weather

15-Apr-26

15:30

15-Apr-26

20:15

7418.138

Wet Weather

16-Apr-26

20:10

16-Apr-26

20:45

36.914

Wet Weather

24-Apr-26

20:55

25-Apr-26

1:50

86.044

Wet Weather

Receiving water body: Selkirk Drain 

CSO-2/3 - Whitwam Avenue & Oak Street East Sewer Overflow Event Report

Start Date 

Start 

Time

End Date

End 

Time

Volume

(m3)

Cause of

Event
 18-Feb-26 10:40 18-Feb-26  10:45 0.487 Wet Weather
5-Mar-26 12:40 5-Mar-26 16:40 0.531 Wet Weather
6-Mar-26 23:50 7-Mar-26 11:50 515.453 Wet Weather
11-Mar-26 2:55 11-Mar-26 14:30 7499.813 Wet Weather
22-Mar-26 19:00 22-Mar-26 20:25 141.02 Wet Weather
26-Mar-26 17:45 26-Mar-26 20:25 234.748 Wet Weather
4-Apr-26 0:30 4-Apr-26 2:00 82.331 Wet Weather
4-Apr-26 15:55 4-Apr-26 16:50 51.53 Wet Weather
6-Apr-26 15:05 6-Apr-26 15:30 1.011 Wet Weather
9-Apr-26 20:00 9-Apr-26 20:20 6.239 Wet Weather
13-Apr-26 21:20 13-Apr-26 22:15 6.926 Wet Weather
15-Apr-26 2:00 15-Apr-26 3:10 247.895 Wet Weather
15-Apr-26 15:15 15-Apr-26 19:30 10275.067 Wet Weather
16-Apr-26 19:45 16-Apr-26 21:10 328.974 Wet Weather
24-Apr-26 20:35 25-Apr-26 2:15 589.649 Wet Weather

Receiving water body: Selkirk Drain

CSO-4 - Garrison Avenue Sewer Overflow Event Report

Start Date

Start 

Time

End Date

End 

Time

Volume

(m3)

Cause of

Event
7-Mar-26 0:05 7-Mar-26 11:50 1869.79 Wet Weather
11-Mar-26 3:15 11-Mar-26 9:35 2446.479 Wet Weather
26-Mar-26 19:25 26-Mar-26 20:25 983.086 Wet Weather
4-Apr-26 1:10 4-Apr-26 1:45 317.438 Wet Weather
4-Apr-26 16:30 4-Apr-26 16:35 26.518 Wet Weather
15-Apr-26 2:35 15-Apr-26 3:25 836.697 Wet Weather
15-Apr-26 15:35 15-Apr-26 16:32 467.145 Wet Weather

Receiving water body: Selkirk Drain

CSO-5 - Morgan Avenue Sewer Overflow Event Report

Start Date

Start 

Time

End Date

End 

Time

Volume

(m3)

Cause of

Event
11-Mar-26 3:10 11-Mar-26 9:10 75.677 Wet Weather
15-Apr-26 15:35 15-Apr-26 16:15 123.356 Wet Weather

Receiving water body: Selkirk Drain

CSO-6 - Georgia Avenue Sewer Overflow Event Report

Start Date 

Start 

Time

End Date

End 

Time

Volume

(m3)

Cause of

Event
11-Mar-26 3:10 11-Mar-26 9:00 0.04 Wet Weather
15-Apr-26 16:00 15-Apr-26 16:05 0.146 Wet Weather

Receiving water body: Selkirk Drain

CSO-7 - Oak Street West Sewer Overflow Event Report

Start Date 

Start 

Time

End Date

End 

Time

Volume

(m3)

Cause of

Event
11-Mar-26 3:10 11-Mar-26 9:10 1210.326 Wet Weather
15-Apr-26 15:35 15-Apr-26 16:10 1193.389 Wet Weather

Receiving water body: Selkirk Drain

The combined and sanitary sewer mains and connections within the Municipal right of way are maintained and repaired by the Municipality. If you are having a problem with sewage back up at your property please fill out our report an issue form or call the Municipality for assistance, at 519-326-5761.

For information on the availability and operation of sanitary and combination sewers, please contact Public Works.  For information on new developments, please contact Engineering Services.

Combination sewers are an older method of sewer construction where a single pipe carries both storm and sanitary sewage. As a result during heavy rainfall events sanitary sewage gets bypassed at various overflow sites throughout the Municipality when the flow of rain water exceeds the ability of the combined sewers to carry it away.

In an effort to capture and treat all sanitary sewage, and reduce the amount of rain water being sent through the Pollution Control Centre, the Municipality continues to separate combination sewers into sanitary sewers and storm sewers.

The Municipality is required to submit annual reports to the Ontario Ministry of the Environment, Conservation and Parks to meet the requirements of the Consolidated Linear Infrastructure Environmental Compliance Approval.  To view the most recent reports please visit the Plans, Publications, and Reports page.

Contact Us

Municipality of Leamington
111 Erie Street North
Leamington, ON 
N8H-2Z9

Phone: 519-326-5761
Report an Issue

Municipal Office Hours
Monday - Friday
8:30 AM to 4:30 PM
Saturday - Closed
Sunday - Closed

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