SW6180702_AddInfo_20180814 (2)

August 14, 2018

Leslie Hartz, Vice President - Pipeline Construction
Dominion Energy Transmission, Inc.
5000 Dominion Blvd.
Glen Allen, VA 23060

Subject: Request for Additional Information
Stormwater Permit No. SW6180702
ACP Fayetteville Contractor Yard – CY10a
Cumberland County

Dear Ms. Hartz:

The Division of Energy, Mineral and Land Resources (DEMLR) received a Stormwater Management
Permit Application for the subject project on July 20, 2018. A preliminary review of the application has
determined that additional information is needed to meet the requirements of 15A NCAC 02H .1000 and
continue the stormwater permit review. Failure to provide the following additional information to
DEMLR by September 14, 2018 will result in the application being returned as incomplete. The
return of a project will necessitate resubmittal of all required items, including the application fee.

1. Seasonal High Water Table Separation: The provided Soils Report and details on Plan Sheet 5
indicate a less than 2-foot separation between the bottom of the devices and the SHWT. To
function properly, the proposed infiltration and sand filter stormwater control measures (SCMs)
require a minimum separation of two feet from the bottom of the SCM down to the SHWT
elevation (Ref. Infiltration MDC 2, Sand Filter MDC 1 in the NCDEQ Stormwater Design
Manual). The minimum separation may be reduced to no less than 1 foot if the applicant
provides a hydrogeologic evaluation that demonstrates that the water table will subside to its pre-
storm elevation within five days or less (see NCDEQ Stormwater Design Manual A-2 for
guidance). If these criteria cannot be met, then another type of device is required to be utilized.

Please reference the State assigned project number SW6180702 on all correspondence. If you need
additional time to submit the information, please submit your request for a time extension to the Division
at the contact below. The request must indicate the date by which you expect to submit the required
information. The Division is allowed 90 days from the receipt of a completed application to issue the
permit.

The construction of any impervious surfaces, other than a construction entrance under an approved
Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and is subject to enforcement
action pursuant to NCGS 143-215.6A.

If you have any questions concerning this matter please feel free to contact me at
[e-mail] or [phone].

Sincerely,
Jeanette Powell
Environmental Engineer
Stormwater Program

Cc: Staci Roggi, Dominion Energy
Richard Gangle, Dominion Energy
Mr. Scott A Robinson, PE, ERM NC, Inc.
DEMLR Fayetteville Regional Office