SW3200102_Cover Letter and Storm Water Narrative (08-28-20)_20200909

August 28, 2020
NCDEQ
512 N. Salisbury Street
1612 Mail Service Center
Raleigh, NC 27699-1612
Reference: Storm Water Narrative
Custom Plastics Phase 1 Building Expansion
1735 Heilig Road
Salisbury, North Carolina
Mr. Jim Farkas:
Amicus Partners, PH C
Amicus Partners, PLLC (Amicus) is pleased to submit this storm water management
narrative for the proposed Custom Plastics Phase I building expansion at 1735 Heilig Road
in Salisbury, North Carolina. The scope of the project involves adding approximately
68,687 square feet to an existing industrial building. The new impervious area consists of
two building expansions on the north and south side of the building as well as a new drive
isle around the south side of the building expansion.
In order to treat and detain the new impervious area, a sand filtration system was designed at
the front of the property to treat and detain an equivalent area of 68,687 square feet draining
from the existing parking lot. The sand filter was designed to treat the first -inch of runoff
and meet pre -expansion runoff volumes for the 2-year and 10-year, 24-hour storm events.
The post -developed routing from the sand filter discharges to the south east of the property.

Attached to this letter is the revised storm water management permit application along with
required supporting documentation as well as two full sets of construction documents and
one set of calculations. Should you have any questions or require additional information,
feel free to contact us at [phone].
Sincerely,
Nicholas R. Parker, PE
President
Amicus Partners, PLLC