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Sewage Collection

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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.

Combined Sewer Overflows

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	26-Mar-26	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

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	515.454	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

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

Sewer Backups & Maintenance

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 contact Public Works.

Availability

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.

Sewer Separation

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.

Sewage Collection System Reports

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.

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