20110821 Ver 1_Post Closeout Contingency_20180208

Lyle Creek
Post Closeout Contingency Update
Full Delivery Site
DMS ID (IMS) # 94643
Catawba County
Stream &Wetland Mitigation Site
The Lye Creek closeout site visit was completed with the Interagency Review Team (IRT) on 6/20/2017. The
IRT considered a total of 5,571 SMUs and 7.1 WMUs for closure during the site visit. The site was not approved
for closure in June 2017, the following plan of action was approved:
1. Monitor wetland hydrology for one additional year (MY6-2017).
2. Monitor stream reaches UTI (upstream reach) and UT 1 b (upstream reach) visually for one additional
year.
3. Continue beaver management as necessary for one additional year.
4. Fixed plot vegetation height data to be submitted to the IRT (wetlands only).
5. Eliminate and replant minor landowner encroachments in a few locations.
Resnlntion-
1. All groundwater gages within the Site met the project success criteria (14 consecutive days, 7.0% of
growing season) for Year 6. Please see attached summary gage table and plots for Year 6 results.
2. Stream reaches UTI (upstream reach) and UTIB (upstream reach) were visually monitored during Year
6 between June and November 2017. Both reaches appear stable and are not showing signs of
instability. Please refer to the attached Current Condition Plan View Map and site photographs.
3. Wildlands has continued to monitor the Lyle Creek Site for additional signs of beaver activity. At this
time, beaver are not present within the lower reaches of UTI.
4. Fixed plot vegetation height data has shown a large improvement from the MY5 and MY6 assessments.
The MY6 (2017) average wetland plot height is 7.8 ft compared to MY5, which was 6.04 ft. The
planted vegetation is healthy and continuing to grow. It is anticipated that the average planted stem
height will continue to improve and exceed the 8 ft height requirement in 2018. Please refer to the
attached vegetation summary data for MY6.
Wildlands added additional posts and signs to demarcate the easement boundary (Please refer to
attached photographs. Additional plants were installed in 2016 to replace stem loss from encroachment.
In addition, herbaceous vegetation and natural recruitment have flourished in MY6. These landowner
encroachments have been resolved and are no longer an area of concern.
Recommendation:
DMS recommends closing the Lyle Creek site with 5,571 SMUs and 7.1 WMUs.

Wetland Gage Attainment Summary
Lyle Creek Mitigation Site
DMS Project No. 94643
Monitoring Year 6 - 2017
Wetlands RW1 and RW2
1111111111111 1111111 !1 Jill Jill III 11111111111111111111111111 111111111111111111111111111 '111 1 1
IL
Success Criteria Achieved/Max Consecutive Days During Growing Season (%)
Gage
Year 1 (2012)
Year 2 (2013)
Year 3 (2014)
Year 4 (2015)
Year 5 (2016)
Year 6 (2017)
No/5 Days
Yes/49 Days
Yes/47 Days
Yes/59 Days
Yes/42 Days
Yes/41 Days
1
(2.5%)
(24.0%)
(23.0%)
(25.4%)
(18.1%)
(20.3%)
No/0 Days
Yes/93 Days
Yes/113.5 Days
Yes/99.5 Days
Yes/108 Days
Yes/86 Days
2
(0.0%)
(46.0%)
(56.0%)
(42.9%)
(46.6%)
(42.6%)
Yes/29 Days
Yes/49 Days
Yes/52.5 Days
Yes/101.5 Days
Yes/84 Days
Yes/99 Days
3
(14.0%)
(24.0%)
26.0%)
(43.8%)
(36.2%)
(49.0%)
Yes/27 Days
Yes/54.5 Days
Yes/47 Days
Yes/65.5 Days
Yes/48 Days
Yes/41 Days
4
(13.0%)
(27.0%)
(23.0%)
(28.2%)
(20.7%)
(20.3%)
No/11 Days
Yes/41.5 Days
Yes/52.5 Days
Yes/75.5 Days
Yes/233 Days
Yes/130 Days
5
(5.0%)
(20.3%)
(26.0%)
(32.5%)
(100.0%)
(64.4%)
6
No/5 Days
Yes/16 Days
No/10 Days
Yes/35.5 Days
No/9 Days (3.9%)
Yes/34 Days
(2.5%)
(7.8%)
(5.0%)
(15.3%)
(16.8%)
Yes/22 Days
Yes/179 Days
Yes/49.5 Days
Yes/79.5 Days
Yes/43 Days
Yes/117 Days
7
(11.0%)
(88.0%)
(25.0%)
(34.3%)
(18.5%)
(57.9%)
No/12 Days
Yes/53 Days
Yes/44.5 Days
Yes/63 Days
Yes/42 Days
Yes/54 Days
8
(6.0%)
(26.0%)
(22.0%)
(27.2%)
(18.1%)
(26.7%)
9
N/A
N/A
N/A
Yes/17 Days
No/9 Days (3.9%)
Yes/34 Days
(7.3%)
(16.8%)
10
N/A
Yes/180 Days
Yes/45.5 Days
Yes/85 Days
Yes/45 Days
Yes/99 Days
(88.0%)
(23.0%)
(36.6%)
(19.4%)
(49.0%)
11
N/A
Yes/80 Days
Yes/50.5 Days
Yes/73.5 Days
Yes/84 Days
Yes/74 Days
(39.0%)
(25.0%)
(31.7%)
(36.2%)
(36.6%)
Yes/74.5 Days
Yes/204 Days
Yes/35 Days
Yes/52.5 Days
No/13 Days
No/13.5 Days
Reference
(36.5%)
(100%)
(17.3%)
(22.6%)
(5.4%)
(6.7%)
Wetland success criteria is 7% of growing season (14 consecutive days).

Groundwater Gage Plots
Lyle Creek Mitigation Site (DMS Project No. 94643)
Monitoring Year 6 - 2017
Wetland RW1
20
10
0
-10
v
-20
v
m
3 -30
-40
-50
-60
C - T C 75 W Q - > U
i Q O O
2:> Q Ln D
Z
Rainfall Reference Gage Depth Gage #1 — — Criteria Level
6.0
5.0
4.0
c
3.0 m
c
m
2.0
1.0
0.0

Groundwater Gage Plots
Lyle Creek Mitigation Site (DMS Project No. 94643)
Monitoring Year 6 - 2017
Wetland RW1
20
10
0
-10
v
-20
v
m
3 -30
-40
-50
-60
C - T C 75Up Q - > U
i Q cn O O
2:> D
Q Z
Rainfall Reference Gage Depth Gage #2 — — Criteria Level
6.0
5.0
4.0
c
3.0 m
c
m
2.0
1.0
0.0

Groundwater Gage Plots
Lyle Creek Mitigation Site (DMS Project No. 94643)
Monitoring Year 6 - 2017
Wetland RW1
20
10
0
-10
v
-20
v
m
3 -30
-40
-50
-60
C - T C 75 W Q - > U
i Q O O
2:> Q Ln D
Z
Rainfall Reference Gage Depth Gage #3 — — Criteria Level
6.0
5.0
4.0
c
3.0 m
c
m
2.0
1.0
0.0

Groundwater Gage Plots
Lyle Creek Mitigation Site (DMS Project No. 94643)
Monitoring Year 6 - 2017
Wetland RW1
20
10
0
-10
v
-20
v
m
3 -30
-40
-50
-60
C - T C 75 W Q - > U
i Q O O
2:> Q Ln D
Z
Rainfall Reference Gage Depth Gage #4 — — Criteria Level
6.0
5.0
4.0
c
3.0 m
c
m
2.0
1.0
0.0

Groundwater Gage Plots
Lyle Creek Mitigation Site (DMS Project No. 94643)
Monitoring Year 6 - 2017
Wetland RW1
20
10
0
-10
v
-20
v
m
3 -30
-40
-50
-60
C - T C 75 W Q - > U
i Q O O
2:> Q Ln D
Z
Rainfall Reference Gage Depth Gage #5 — — Criteria Level
6.0
5.0
4.0
c
3.0 m
c
m
2.0
1.0
0.0

Groundwater Gage Plots
Lyle Creek Mitigation Site (DMS Project No. 94643)
Monitoring Year 6 - 2017
Wetland RW2
20
10
0
-10
v
-20
v
m
3 -30
-40
-50
-60
C - T C 75 W Q - > U
i Q O O
2:> Q Ln D
Z
Rainfall Reference Gage Depth Gage #6 — — Criteria Level
6.0
5.0
4.0
c
3.0 m
c
m
2.0
1.0
0.0

Groundwater Gage Plots
Lyle Creek Mitigation Site (DMS Project No. 94643)
Monitoring Year 6 - 2017
Wetland RW2
20
10
0
-10
v
-20
v
m
3 -30
-40
-50
-60
C - T C 75 W Q - > U
i Q O O
2:> Q Ln D
Z
Rainfall Reference Gage Depth Gage #7 — — Criteria Level
6.0
5.0
4.0
c
3.0 m
c
m
2.0
1.0
0.0

Groundwater Gage Plots
Lyle Creek Mitigation Site (DMS Project No. 94643)
Monitoring Year 6 - 2017
Wetland RW2
20
10
0
-10
v
-20
v
m
3 -30
-40
-50
-60
C - T C 75 W Q - > U
i Q O O
2:> Q Ln D
Z
Rainfall Reference Gage Depth Gage #8 — — Criteria Level
6.0
5.0
4.0
c
3.0 m
c
m
2.0
1.0
0.0

Groundwater Gage Plots
Lyle Creek Mitigation Site (DMS Project No. 94643)
Monitoring Year 6 - 2017
Wetland RW2
20
10
0
-10
v
-20
v
m
3 -30
-40
-50
-60
C - T C 75 W Q - > U
i Q O O
2:> Q Ln D
Z
Rainfall Reference Gage Depth Gage #9 — — Criteria Level
6.0
5.0
4.0
c
3.0 m
c
m
2.0
1.0
0.0

Groundwater Gage Plots
Lyle Creek Mitigation Site (DMS Project No. 94643)
Monitoring Year 6 - 2017
Wetland RW1
20
10
0
-10
v
-20
v
m
3 -30
-40
-50
-60
C - T C 75 W Q - > U
LlQ Vl [) O 0
� > Q Z
Rainfall Reference Gage Depth Gage #10 — — Criteria Level
6.0
5.0
4.0
c
3.0 m
c
m
2.0
1.0
0.0

Groundwater Gage Plots
Lyle Creek Mitigation Site (DMS Project No. 94643)
Monitoring Year 6 - 2017
Wetland RW2
20
10
0
-10
v
-20
v
m
3 -30
-40
-50
-60
C - ? C W Q +-' > U
Ll Q 7 N O O 0
� � Q Z
Rainfall Reference Gage Depth Gage #11 — — Criteria Level
6.0
5.0
4.0
c
3.0 m
c
m
2.0
1.0
0.0

Groundwater Gage Plots
Lyle Creek Mitigation Site (DMS Project No. 94643)
Monitoring Year 6 - 2017
Wetland Number
20
10
0
-10
v
-20
v
m
3 -30
-40
-50
-60
C - ? C 75> v
UQ Vl [) O 0
� > Q Z
Rainfall Reference Gage Depth — — Criteria Level
6.0
5.0
4.0
c
3.0 m
c
M
2.0
1.0
0.0

Monthly Rainfall Data
Lyle Creek Mitigation Site
DMS Project No. 94643
Monitoring Year 6 - 2017
Lyle Creek 30-70 Percentile Graph for Rainfall in 2017 Catawba, NC
13
11
9
S
r7
0
M
Q
�5
a`
3
1
1
Jan -17 Feb -17 Mar -17 Apr 17 May -17 Jun -17 Jul -17 Aug -17 Sep -17 Oct -17 Nov -17 Dec -17
Date
USGS Station 354616081085145
-30th Percentile
-70th Percentile
2017 rainfall collected by onsite rainfall gage and USGS station 354616081085145
Z 30th and 70th percentile rainfall data collected from weather station Catawba 3 NNW, NC1579 (USDA, 2002)

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2014 Aerial

Figure 3.1 Integrated Current
Condition Plan View (Sheet 1 of 3)
Lyle Creek Mitigation Site
k WILDLANDS [ DMS Project Number 94643
ENGINEERING rkq
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1 1 1 1 1 Monitoring Year 6
Catawba County, NC

Figure 3.2 Integrated Current
Condition Plan View (Sheet 2 of 3)
Lyle Creek Mitigation Site
A WILDLANDS � I�� 2��t
ILL DMS Project Number 94643
ENGINEERING
rk
I i i i I t Monitoring Year 6
Catawba County, NC

Figure 3.3 Integrated Current
Condition Plan View (Sheet 3 of 3)
Lyle Creek Mitigation Site
A WILD LANDS
o Zoo Zoo It [ DMS Project Number 94643
ENGINEERING ,
1 1 1 1 1 Monitoring Year 6
Catawba County, NC

Lyle Creek - Wetland Vegetation Plot Height Data
MY6 (2017)
VP #
Height in ft
Average Ht (ft)
3
8.27
4.07
9.35
2.56
1.77
1.77
6.53
7.74
2.03
2.10
0.39
4.2
12
5.64
3.12
7.45
2.36
7.25
4.69
4.66
3.15
4.8
13
8.56
8.63
9.35
4.36
7.61
21.03
11.35
13.58
21.49
7.22
7.25
18.37
18.64
14.96
10.30 12.2
15
6.30
11.19
8.40
14.21
7.84
2.82
0.00
2.03
11.94
2.17
5.84
10.27
6.9
16
7.45
11.02
11.94
4.53
7.94
9.88
0.00
4.17
7.81
7.09
5.61
10.01
9.74
4.56
11.58 7.6
23
3.41
2.79 1
7.35
4.66
8.53
4.33
5.31
27.99
18.83
9.2
24
16.40
13.02
16.80
9.58
3.35
6.92
7.32
3.18
5.87
5.09
5.48
7.94
5.54
4.79
5.74 7.8
25
18.41
8.01
12.14
6.89
17.81
11.68
17.91
19.00
17.55
15.75
6.86
13.8
26
5.45
2.40
5.41
6.30
2.59
4.89
7.05
11.75
8.30
4.40
2.10
5.5
27
4.00
4.69
9.19
2.49
13.65
4.40
9.12
5.68
6.30
3.02
10.53
8.10
2.92
6.5
28
14.70
15.68
8.20
12.34
10.37
7.68
4.79
1.57
12.80
6.50
4.72
1 4.72
1
8.7
29
10.01
4.76 1
10.86
10.60
7.84
4.56
5.84
10.43
8.1
30
8.99
10.47
12.89
10.96
5.35
4.30
8.89
7.41
5.18
8.3
31
6.10
3.64
8.99
8.27
10.99
3.31
15.45
6.56
4.95
5.91
7.4
32
7.71
7.25
2.59
3.97
6.76
1.35
7.84
7.68
5.6
33
15.45
10.04
8.86
4.33
12.37
9.55
10.07
11.88
20.24
10.60
11.3
34
5.74
6.96
1.84
5.51
9.84
9.02
3.35
7.71
6.96
10.66
5.71
5.71
6.6
35
5.68 1
4.56 1
6.73 1
11.61
1 4.07
4.89 1
4.56
2.36
3.22
5.31
5.77
3.35
3.41
5.0
Site Average Planted Height (ft)1 7.8

Site Photographs

46
ls�
-Zi
..... .....
r.
r4

Additional Easement Markers and Vegetation Re-established (11106117)
UT1B Upstream Reach
Photo Point 25 — view upstream (11106117) 1 Photo Point 25 — view downstream (11106117) I
UT1B —view upstream (11106117) UT1B — view downstream (11106117) 1