Toronto water, sewer & drainage 311 requests
How many 311 requests in the water, sewer & drainage category residents of Toronto have filed since January 2024.
Current release
Data through March 31, 2026
Data from January 2024 through March 31, 2026
Total Requests
28.7K
in the water, sewer & drainage category
Latest Month
1.9K
March 2026
Share of total
2.7%
of all Toronto 311 requests
Monthly water, sewer & drainage requests
How many water, sewer & drainage 311 requests Toronto residents file each month.
How this category is extracted
What counts as water, sewer & drainage: Water main breaks and leaks, sewer backups, storm drain clogs, catch basin concerns, and flooding.
In Toronto’s raw 311 feed, the following 3 service_type values roll into water, sewer & drainage:
- Catch Basin - Blocked / Flooding
- Sewer Service Line-Blocked
- Watermain-Possible Break
To reproduce these counts against the raw feed
SELECT count(*)
FROM <toronto_311_raw>
WHERE service_type IN (
'Catch Basin - Blocked / Flooding',
'Sewer Service Line-Blocked',
'Watermain-Possible Break'
)Analyst tip: Austin uses 'AW -' (Austin Water) and 'WPD -' (Watershed Protection Department) prefixes. Calgary uses 'WATS -' (Water and Sewer). NYC uses 'WATER LEAK' and 'Water System'. Baton Rouge has a broader 'ENVIRONMENTAL ISSUES' that may include non-water items — cross-check against the raw feed if precision matters.
See how water, sewer & drainage is defined for every tracked city →
Source & provenance
Counts on this page are derived from Toronto’s official open 311 data feed, covering January 2024 through March 31, 2026. Category assignment uses a hand-curated mapping from the city’s raw service types to a normalized cross-city category. View the underlying dataset at open.toronto.ca.