SW3201003_Narrative of project_20201103

October 16, 2020
AUTO FINANCE & CAR CARE CENTER NARRATIVE
This project involves the development of a 5.717 Ac parcel (consisting of two
buildings, for automobile sales and service) with two entrances off of Union
Beltway Road, SR 3731 in Union County . The overall site is located outside of two
municipalities: the Town of Stallings, Union County, and Mint Hill (Mecklenburg
County). The impervious area for the site will be collected in a storm drainage
system and conveyed to a sand filter pond. The sand filter pond is located near
the site entrance off of Union Beltway Road. The sand filter ponds will treat the
water quality volume as well as detain the 1 year, 2 year, 10 year storm events to
pre -development flow rates. The 100 year storm elevation in the sand filter pond
provide more than the one foot of minimum freeboard below the top of dam.
Some offsite water will be collected and treated in the sand filter pond. Most
offsite water will be collected in swales and a bypass storm drainage pipe system
located on the perimeter of the site and conveyed to an outfall location on site.