20170920 Ver 1_RequesttoAmendMP_20190603

June 3, 2019
NC IRT
C/O Ms. Lindsay Crocker
NC DEQ— Division of Mitigation Services
1652 Mail Service Center
Raleigh, North Carolina
27699-1652
Subject: Formal Request to Modify Heron Mitigation Site Assets
USACE Action ID No. SAW -2017-01471
DWR No. 17-0290
RFP No. 16-006990
Mitigation Plan Assets -5,264 SMU
Amended Mitigation Plan Assets -5,293 SMU
Construction changes during As -Built provided an additional 29 SMUs from Mitigation Plan. Deviations
from the construction plans included realignment of UT 113 (adding 20 linear feet to the alignment) due to
conflicts with a gas line crossing. The realignment resulted in the reduction of a log vane and alterations
to pipe configurations within the crossing. Gas line realignment also affected the length of UT 2 in its
lower reaches (shortening the Restoration reach). UT 2 also has minor deviations in the enhancement II
reach due to profile elevation alterations to tie to the invert of UT 1B. These profile alterations were
included in construction plans, but not included in table updates of the detailed plan. Profile alterations
resulted in the Enhancement (level II)/Restoration initiation point migrating upstream, and thus the length
of the Enhancement (Level II) reach (UT 2A) decreased by 39 feet, and the length of the restoration reach
(UT 213) increased by 17 feet.
Minor easement deviations after construction plan development resulted in some stationing changes,
most notable at the upper reaches of UT 1A (adding 5 linear feet to the alignment) and UT 8A & UTBB
(reducing the alignments by a total of linear feet). The easement variations also affected channel lengths
across gas lines, which do not generate mitigation credit. Eight log cross -vanes were not constructed due
to contact with bed rock, or conflicts with the gas line. In addition, a marsh treatment area was added to
the right bank of UT 6 at a draw that was concentrating surface drainage and scouring the valley walls.
No other deviations of significance occurred between construction plans and the as -built condition. In
addition, no issues have arisen since construction occurred. Revised Asset Table is attached.
Thank you,
Worth Creech
1101 Haynes St., Suite 211 • Raleigh, NC 27604 • www.restorationsystems.com • Ph 919.755.9490 • Fx 919.755.9492

Table 1. Project Components and Mitigation Credits
Heron Restoration Site
Asbuilt Baseline Monitoring Report (Project No. 100014)
Heron Stream and Wetland Restoration Site
Alamance County, North Carolina
page 2
Restoration Systems, LLC
May 2019
MitigationRestoration
Stream
Existing
Restoration or
Reach
Plan
Mitigation
Mitigation
Stationing/
Footage
FootageRestoration
Restoration Level
Comment
ID
Footage/
Ratio
Credits
Wetland Type
Acreage
Acreage/
Equivalent
Acreage
UT IA
(-)0+05 to 04+70
475
470
475
Enhancement (Level I)
475
1.5:1
317
57 if of UTI is located outside
856-57=
of the conservation easement
UT 1B
04+70 to 13+26
753
836
856
Restoration
799
1:1
799
and therefore is not generating
credit
UT 2A
00+00 to 03+04
304
343
304
Enhancement Level 11
304
2.5:1
122
UT 2B
03+04 to 03+67
19
46
63
Restoration
63
1:1
63
UT 3
00+00 to 02+79
269
279
279
Restoration
279
1:1
279
UT 4
00+00 to 04+50
485
450
450
Restoration
450
1:1
450
52 if of UT5 is located outside
952-52=
of the conservation easement
UT 5A
00+00 to 09+52
422
952
952
Restoration
900
1:1
900
and therefore is not generating
credit
UT 513
09+52 to 14+90
538
538
538
Enhancement Level II
538
2.5:1
215
UT 6
00+00 to 07+81
683
781
781
Restoration
781
1:1
781
41 if of the UT7 restoration
reach is located outside of the
UT 7A
00+00 to 02+32
0
232
232
Restoration
232-41=
1:1
191
conservation easement and
191
therefore is not generating
credit
55 if of the UT7 enhancement
reach is located outside of the
UT 713
02+32 to 09+96
764
764
764
Enhancement (Level 1)
764-55=
1.5:1
473
conservation easement and
709
therefore is not generating
credit
UT8A
00+04 to 06+09
549
607
605
Restoration
605
1:1
605
UT 8B
06+09 to 08+57
248
250
248
Enhancement Level II
248
2.5:1
99
Wetland
Riparian
--
0.35
0.35
Restoration
0.35
1:1
0.35
Wetland Restoration
R
Riverine
Wetland
Riparian
E
Riverine
0.61
0.61
0.61
Enhancement
0.61
2:1
0.31
Wetland Enhancement
Asbuilt Baseline Monitoring Report (Project No. 100014)
Heron Stream and Wetland Restoration Site
Alamance County, North Carolina
page 2
Restoration Systems, LLC
May 2019