LPDA stands for Localized Poor Drainage Area. The Village of Downers Grove Illinois identified these areas as locations prone to flooding due to the topography of the land or land that is "bowl" shaped. Storm water runoff that can not penetrate the ground tends to accumulate in LPDA's creating flooding. LPDA's serve as natural detention basins to limit flooding in other areas of the Village. LPDA's are not officially recognized by FEMA as regulatory flood plains, however the Village building codes regulate both LPDA's and flood plains similarly.
Am I in a LPDA?
You can check the Village Drainage Control Map to see if your property is near a LPDA. You can click here for more information: http://www.downers.us/assets/production/doc_related_doc/file/243/Village_Drainage_Control_Map.pdf
or you can obtain available flood elevation information from the Village Works Department at: 630-434-5460.
What is the risk of flooding in these areas?
The risk of flooding in a LPDA are generally higher than areas not in a LPDA or flood plain. The actual level of risk depends upon the specific location within the LPDA.
You can contact the Village Works Department with any questions you may have. They will be able to explain about flood insurance, how to minimize the risk of flooding, what to do if you notice flooding, and any limits to use of your property. The phone number for the Village Works Department is: 630-434-5460.
FEMA's website is www.fema.gov and their contact number is:800-621-FEMA