March 24, 2014 Stormwater Subcommittee Meeting

Discussion of City Substation for Geneva/Pine area.

Elmhurst Park District will hire an engineering firm to conduct a peer review.  The Park Board will hold a macro discussion at its next meeting.

City discussed requiring more onsite storage by homeowners and discontinuing direct connections of downspouts, sump pumps, etc. to storm system.  Proposed that 300-400 cubic feet of storage be required on newly developed sites.  Concept is being revised and proposed at City meeting. 

City shared a memo regarding requirement changes/additions for new construction.

More discussion on naturalized flow of water by City buying two homes on Geneva, instead of piping.

Village of LaGrange formulas for impervious surface calculation were discussed. 

A draft of an intergovernmental agreement template was supplied by Jim Grabowski, City Manager.