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Storm Water Detention
Description:
A majority of building improvements result in an increase in storm-
water runoff as a result of the increased impervious area from the new
roof and parking areas. According
to the Illinois State statutes, the storm water leaving the developed
site should leave with the same intensity as the pre-developed site.
Application:
Prior to issuance of a building permit the Developer must
submit a storm water detention study to the City Engineer.
Requirements:
The site drainage is subject to Illinois drainage law.
Storm water leaving the development site should leave with the
same intensity as the undeveloped site.
A detention system will need to be constructed to hold storm
water
for the increased runoff which is a result of new roof and paved areas
for a storm event having a 10-year intensity rainfall and a 100-year
intensity rainfall. In most
cases, the study to determine the type and size of the storm water
detention should be completed by a qualified engineer or architect.
Review of Plans:
The City Engineer will review the storm water detention plan.
The review can usually be completed within 3 to 5 working days.
Permit Fee Schedule:
No fee.
For More
Information:
Jeff Steinkamp, City
Engineer
City Hall, 730 Maine Street
Quincy, Illinois 62301
217-228-4527
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