Chicago water, sewer & drainage 311 requests
Water, Sewer & Drainage 311 requests filed in Chicago since January 2021.
Current release
Data through April 30, 2026
Data from January 2021 through April 30, 2026
Source data: Open data ↗
File a 311 request in Chicago → This page shows historical data only.
Total Requests
294.5K
in the water, sewer & drainage category
Latest Month
8.6K
April 2026
Share of total
3.1%
of all Chicago 311 requests
Median Resolution
19.5h
half of requests close faster
Monthly water, sewer & drainage requests
How many water, sewer & drainage 311 requests Chicago residents file each month.
How this category is defined
What counts as water, sewer & drainage: Water main breaks and leaks, sewer backups, storm drain clogs, catch basin concerns, and flooding.
In Chicago’s raw 311 data, the following 7 service_type values are counted as water, sewer & drainage:
- Check for Leak
- No Water Complaint
- Open Fire Hydrant Complaint
- Sewer Cave-In Inspection Request
- Sewer Cleaning Inspection Request
- Water in Basement Complaint
- Water On Street Complaint
To reproduce these counts against the raw feed
SELECT count(*)
FROM <chicago_311_raw>
WHERE service_type IN (
'Check for Leak',
'No Water Complaint',
'Open Fire Hydrant Complaint',
'Sewer Cave-In Inspection Request',
'Sewer Cleaning Inspection Request',
'Water in Basement Complaint',
'Water On Street Complaint'
)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 Chicago’s official open 311 data feed, covering January 2021 through April 30, 2026. Category assignment uses an AI-generated mapping from the city’s raw service types to a normalized cross-city category. View the underlying dataset at data.cityofchicago.org.