20170070 Ver 1_More Info Received_20170417

Dear Ms. Higgins:
16 April 2017
[Rr[E � aPR tT20170'6 1)
was out of town and have just returned. Following is the additional
information requested in your letter dated 27 March 2017.
1. The areas to be excavated as shown on the provided maps
include the wetlands and streams affected as well as open water
areas. These excavated areas are the only areas of wetlands,
streams or open water affected. In Area 1, the narrow water by
the foot bridge on the left of the map and in Area 2, the narrow
water from No. 5 tee are what I considered to be streams. The
enclosed map shows the wetland of 0.29ac. in Stonegate Pond as
delineated by Mr. Mullin. There are no wetlands affected in the
work area of the excavation in Lake Trace.
2. Stonegate Pond. Due to a leak in the low level outlet, the pond was
lowered last fall and remains drained pending the execution of this
project. The pond is dry except for a small flowing stream.
Lake Trace. Drawdown will be accomplished using a 60- inch low
level outlet at the dam. The outlet has a gated valve. The lake will
be lowered a maximum of 5 feet and based on experience, it will
take approximately 5 days for the lake to be lowered unless it rains.
The outlet is not large enough to draw down the lake five feet during
rainstorms. There is no way we can cause a sudden drawdown
condition with the low level outlet.
3. Stonegate Pond. The low level outlet will be left half open during
the refilling to maintain flow downstream. From past experience,

a 1-2 " rainfall in the river basin will refill the pond quickly. When
the pond has returned to its normal level, the outlet will be
closed.
Lake Trace. Similarly, the low level outlet will remain half open
during refilling to maintain the flow downstream. Again, our
experience is that a 2" rainfall in the river basin will fill the lake to
normal conditions overnight. The outlet will be closed when the
lake returns to its normal level.
4. Stonegate Pond. Stonegate pond is very small and stream flow is
minimal except during rains. The method of excavation is up to
the contractor. Avoiding the stream during excavation is a
contract requirement. It is anticipated that he will divert the
flowing stream to the right bank, excavate, redirect and isolate
the flowing stream to the excavated area, and complete the pond
excavation. A by—pass pumping operation could be used if the
contractor desires. The pond has a rock bottom and varies in
depth from 3 feet to 15 feet. Care will be taken to keep the
flowing stream isolated from the excavation as any sediments
carried downstream will be deposited into Lake Trace and require
removal from there.
Lake Trace. The stream flow in the narrow areas will be diverted
and isolated so the excavation can be accomplished without
disturbing the flowing stream. Less than two feet of sediments are
in these areas. After drawdown, flow will be minimal. In the main
excavation area to the right of the No. 3 bridge, the channel is on
the right bank and away from the excavation operations. Work
will proceed from the upstream end of the site at No. 5 tee so
that any sediments transported downstream will be removed
during the main excavation.

hope this provides you the additional information requested. If
not, please e-mail me so I can address further concerns quickly.
Thank you for your help. My e-mail [e-mail].
Sincerely,
Roger A. Brown

From: Bill Mullin ,[e-mail]
Subject: Stonegate Pond maps
Date: September 6, 2016 at 8:46 AM
To: Williams, Andrew E Saw Andrew.E,[e-mail]
Cc: Roger Brown bl rabrown @ yahoo, com
Mr. Williams,
Here are the maps that I have for the Stonegate pond project. -Bill
William Mullin
Wetland & Wildlife Biologist
Dr. J. H. Carter III & Associates Inc.
Environmental Consultants
[phone]
515 F Midland Road
Southern Pines, NC 28387
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