Prior to the start of work, permits are required for the construction, repair, adjustment, rodding or cleaning of any subsurface structure designed to collect or transport storm and/or sanitary waste water, either on private property, or in the public way. Permits can ONLY be obtained by a LICENSED DRAINLAYER. A licensed Drainlayer is a person possessing a current Sewer and Drain License issued by the City of Chicago. Evidence of a current City of Chicago general business or home repair license and a Department of Transportation Public Way Work License must be presented at the time of application for a Drainlayer’s License.
New Outlet Capacity Maps
In 2009, the Department of Water Management completed a city-wide computer model of its large auxiliary sewers 42-inches in diameter and larger and combined sewer outfalls. This dynamic flow model represents the best available information on the hydrologic and hydraulic characteristics of the City's sewer system. The model will be used as a planning tool to regulate development and investigate the need for future sewer projects. Sewer outlet capacities were determined with the premise of preventing basement flooding.
The new Outlet Capacity Maps reflect new outlet capacities that must be used to determine allowable release rates for projects. These new Outlet Capacity Maps are effective for any new projects submitted for review after January 1, 2011.
Sewer Permit Section Telephone: 312-744-3155 or 312-744-3351
Stormwater Review Telephone: 312-744-2846.