SW5210602_Stormwater Narrative_20210616

("KL INF-,EL DJEA?
Bright People. Right Solutions.
Re: Phobos Solar, LLC — Phase I
The proposed solar site is located in Nash County, North Carolina (north of Middlesex, east of Zebulon,
and west of Nashville) at the intersection of Frazier Road and Old Nash Road. The site is currently an
open field used for agriculture. There are no isolated wetlands or jurisdictional streams present within
the construction area, but there are jurisdictional streams and wetlands on the property. There will be
no proposed impact to the streams or wetlands. The site generally drains to the wetlands and streams
to the eastern portions of the site.
The amount of disturbed acreage permitted for the project site is 15 acres. Clearing and grubbing
activities are proposed for this site in limits areas to construct the substation and access road. The
actual disturbed area will be much less and limited to the areas required to install substation and
proposed access drives. If any rutting or land disturbance occurs on these access drives, it will be
stabilized. It is proposed that the site will have temporary rock construction entrance at the driveway
access point, temporary sediment basins, temporary diversion ditches and temporary perimeter silt
fencing with silt fence outlets placed at the low points for possible discharges. No drainage patterns are
being changed with this project. Stormwater will primarily be treated through overland sheet flow
across herbaceous ground cover and two permanent grass swales north of the substation and access
road. The total new impervious area of 114,411 square feet (4.35% of the site) will be comprised of
gravel access drive and gravel substation pad. Therefore, since the total percentage is less than 12%,
the site is a low density development. As such, the development will have minimal impact on the
downstream properties.
3200 Gateway Centre Blvd, Suite 100, Morrisville, NC 27560 - 919-755-5011 Office - 919-755-1414 - Fax