NCG130081_DEQ Add Info Letter_20170721

Energy, Mineral &
Land Resources
ENVIRONMENTAL OUALITY
July 21, 2017
John H. Wilson
John H. Wilson and Son Grading and Paving, Inc.
3716 Mount Zion Church Road
Mebane, NC 27302
Dear Mr. Wilson:
ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
TRACY DAVIS
Director
Subject: General Permit No. NCG130000
John H. Wilson and Son Grading and
Paving, Inc.
NOI Application No. NCG130081
Alamance County
We received your application for an NPDES discharge permit on June 26, 2017.
After initial review, we have determined the need for additional information to confirm if a
permitting requirement applies to this site.
Please address the following questions:
The Regional Office inspection on May 10, 2017 noted a large mulch pile that was
shredded on site. Stormwater discharges from this type of activity (timber
products) could require a stormwater permit. Has the site considered removing
mulch processing activities and storage piles from this site? Removing these
activities could eliminate the need for any NPDES permit, barring any water quality
impacts from stormwater runoff at this site or wastewater issues from decomposing
mulch that might otherwise prompt designation. The NOI application indicates
other activities at this site are not categorically captured by stormwater regulations.
The Regional Office inspector noted large ponds on site, and that all runoff flows
into these ponds. What is the design storage capacity of these ponds? Ponds
large enough to capture and hold runoff from the 25 -year, 24-hour storm event
without discharging are not subject to an NPDES stormwater discharge permit.
However, you must provide plans and calculations to confirm capacity. Can the site
provide design details of the ponds on site that demonstrate they will capture
and hold the runoff from such an event? In the absence of design details, DEQ
assumes the potential to discharge.
Nothing Compares,
SState of North Carolina I Environmental Quality I Energy, Mineral and Land Resources
512 N. Salisbury Street 11612 Mail Service Center Raleigh, North Carolina 27699-1612
919 707 9200

This site will not require an NPDES industrial stormwater permit if none of the
activities at the site is regulated, and/or there is no potential for stormwater discharge in
events less than the 25 -year, 24-hour storm event for this area. Please provide the
additional information requested by August 31, 2017.
If you have any questions concerning this information request, please contact me at
telephone number [phone].
Sincerely,
Original signed by B. Georgoulias
Bethany A. Georgoulias
Environmental Engineer,
Stormwater Permitting Program
cc: Winston-Salem Regional Office / Sue White
Stormwater Program Files
Nothing Compares --,_,-
State of North Carolina Environmental Quality Energy, Mineral and land Resources
512N. Salisbury Street 1612 Mail Service Center Raleigh, North Carolina 27699-1612
919 707 9200