20131087 Ver 1_IRT Memo_July 2018_20180719

M E M O R A N D U M
302 Jefferson Street, Suite 110
TO: NC IRT
FROM: Ryan Medric - RES
DATE: 07/19/2018
fires
Raleigh, North Carolina 27605 919.209.1052 tel. [phone] fax
RE: Poplin Ridge MY3 IRT Credit Release Site Visit
Attendees: Todd Tugwell (USACE), Kim Browning (USACE), Mac Haupt (NCDWR), Paul
Wiesner (NCDMS), Melonie Allen (NCDMS), David Godley (RES), Brian Hockett (RES), Ryan
Medric (RES)
Date: July 11, 2018
The IRT, DMS, and RES had a site visit at the Poplin Ridge Stream Restoration Site to discuss
credit release. The main topic of discussion was the IRT's concern over the formation of the
streams in and above the old pond on the eastern portion of the project. Specific comments and
concerns are below.
• UT2-2 in the pond (4+90-10+75): A distinct flow path in the pond bottom was not obvious.
The IRT commented that to receive credit in this section RES would have to come up with
a Remedial Action Plan to address the stream flow and channel formation issues. The IRT
determined that the credits will continue to be withheld. This is equal to 585 feet of
Restoration (585 SMUs).
• UT2-1 (0+00-4+90): The last log structure before the old pond bottom seemed to be
blocking flow and causing water to pond up behind it. It was suggested that the structure
should be lowered. The IRT determined that the credits above pond needed to be withheld.
It has come to our attention that the map referenced during the site visit had this reach
incorrectly labeled as Enhancement I when it is Enhancement IL This is equal to 490 feet
of Enhancement II (196 SMUs).
• UT2-A (4+50-5+28): The IRT commented that a flow gauge 2/3 of the way up UT2-A
should be installed to document at least intermittent flow. It was decided that a time-lapse
camera taking a photo once a day pointed at a pool would be sufficient. The proposed
location is included on the attached figure. The credits from the part of the reach that is in
the pond bottom will be withheld. This is equal to 78 feet (31.2 SMUs).
• UT2-2: After looking at a couple locations along the upper section of this reach below the
dam, the IRT expressed concerns over the standing water and vegetation growing in the
riffles. The consensus, however, was that the low flow can be attributed to it being the dry
season and as the buffer continues to grow the vegetation should get shaded out. No credits
are to be withheld below the dam on this reach.

In total the amount of credits that are withheld from Poplin Ridge are 812.2 SMUs. RES will
develop a Remedial Action Plan to address the problems in and above the old pond bottom as well
as add a flow gauge (time-lapse camera) to the upper third of UT2-A. Additionally, the invasive
species treatment will continue and RES will monitor the flow below the dam on UT2 to ensure
the vegetation in the channel is not inhibiting flow.

IM"Al
Ate:.
i
t�resY ;
T tiS 0 50 100
Feet
1 inch = 100 feet
UT2-2
Poplin Ridge Stream
Withhold 585 ft Restoration Project
MY3 2017
r Credit Release
Site Visit Map
Date: 7/16/2015 Drawn by: RTM
LEGEND
I= Conservation Easement
_
Photo Station
t
BMP
hhold 490 ft
Enhancement I
Enhancement II
Preservation
Withhold 78 ft in Pond Footprint
—Restoration
Top of Bank
.
Crest/Flow Gauge
• Rain Gauge
v
Cross Section
Vegetation Plot
Proposed Flow Camera Location
J,
�' Source: 2015 NC OneMap Aer'a m
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