Sediment Release

Dominion Energy Services, Inc.
5000 Dominion Boulevard
Glen Allen, VA 23060
DominionEnergy.com
BY CERTIFIED MAIL
RETURN RECEIPT REQUESTED
December 14, 2018
Karen Higgins
Environmental Program Supervisor
NCDEQ — Division of Water Resources
217 West Jones Street
Raleigh, NC 27603
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Dominion
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RE: Follow-up written submission for Permit DWR #20140957 release of sediment
within wetland WCMP008F, Atlantic Coast Pipeline Spread 10
Dear Ms. Higgins:
This letter is to follow-up on the sediment release to waters of the state previously reported
on December 13, 2018, and as required by Individual Water Quality Certification Permit No.
20140957. Dominion Energy takes environmental compliance very seriously and
immediately notified the Division of Water Resources, Fayetteville Regional Office upon
discovery of this release, and took immediate action to remedy this issue as allowable. The
release information and corrective actions are as follows:
12/13/2018 — Spread 10 — During a daily site inspection, ACP discovered erosion and
sediment controls adjacent to wetland WCMP008F had been undermined. The result was a
release and deposition of sediment within these Waters of the United States. Measures to
prevent this from reoccurring in the future included repairs of the current erosion controls
and addition of supplemental controls at the resource entry location. All deposited material
remained within the approved limits of disturbance. Authorization to begin clean-up was
received from federal regulatory agencies on December 13, 2018 and full clean-up was
completed on December 14, 2018.
If you have any questions or need additional information, please feel free to contact Ryan
Mason at (804)-346-6234 or via email at Ryan.Mason(�a]dominionenergy.com.
Sincerely,
Richard &afigle
Director, Environmental Services
cc: Chad Turlington