20020820 Ver 1_Year 2 Monitoring Report_20120618

I
-a�ONU
Soil & Environmental Consultants, PA
11010 RaNcn Rtdl,(. Ro id R tict,h Noi th C arohna 27614 Phone (919) 846 )(X)O I ax [phone]
www Sandi C coin
1
Transmit to you Herewith
Drawings
Specifications
Brochures or photos
Correspondence
As per your request
Transmittal
Protect # (69q% E3 Date to I16 1 go(.:)- ProjectName 1JOmsVllle Commw,l�v Pa-K-
File
For your information and files
❑ For comment or approval
❑ Returned for correal,on, resubmit
❑ Approved as noted
Under Separate Cover
❑ By mail
(] By couner
❑ By express
Remarks
If enclosures are not as listed as above kindly notify us at once
By O�d
cc
Document-No
Description
WAWA NW K
I WW " , M") 0
Remarks
If enclosures are not as listed as above kindly notify us at once
By O�d
cc

Environmental Consultants, PA
Road • Raleigh, North Carolina 27614 • Phone [phone] Fax [phone]
www SandEC com
June 15, 2012
S &EC Project No 6798 E3
USACE ID Nos 200221471 and 200221472
DWQ Nos 02 -1297 and 02 -0820
Ms Jean Gibby Mr Eric Kulz
U S Army Corps of Engineers NC Division of Water Quality
Raleigh Regulatory Field Office 401 Wetlands Unit
3331 Heritage Trade Drive, Suite 105 1650 Mail Service Center
Wake Forest, North Carolina 27587 Raleigh, North Carolina 27699 -1650
Re Year Two Qualitative Monitoring Report
Morrisville Community Park
Stream and Neuse Riparian Buffer Restoration Protect
Wake County, North Carolina
Dear Ms Gibby and Mr Kulz
- - Enclosed please find a copy of the Year Two Qualitative-Momtoring Report for the above — - —
referenced project This report includes the results of vegetative monitoring counts, and
photographic documentation
As previously requested by Mr Kulz, qualitative monitoring for an additional period of two years
will be performed in order to monitor any areas potentially lacking in woody vegetation This is
the second report of the required two -year qualitative monitoring period
If you have any questions or require further information, please contact us at [phone]
Sincerely,
SOIL & ENVMONMENTAL CONSULTANTS, PA
T&J�!�V
David Gainey
Project Manager
Enclosures Year Two Qualitative Monitoring Report
Cc Mr Blake Mills, Town of Morrisville

Pr
S&
EC

Table of Contents
10 INTRODUCTION
11 Introduction
12 Protect History
2 0 SITE MONITORING METHODS
2 1 Buffer Vegetation Monitoring
2 2 Stream Channel Monitoring
2 3 Beaver Activity Monitoring
3 0 SITE MONITORING RESULTS
3 1 Buffer Vegetation Monitoring Results
3 2 Stream Channel Monitoring Results
3 3 Beaver Activity Monitoring Results
3 4 Qualitative Monitoring Summary - 2011
Appendix A — Site Maps
Figure 1— Qualitative Monitoring Layout
Figure 2 — Post - Replanting Credit Assessment Update
Appendix B — Vegetation Monitoring Plot Photos
Appendix C — Stream Channel Monitoring Photos
H
1
1
1
3
3
3
3
4
4
5
5
6

10 INTRODUCTION
11 Introduction
This monitoring report has been prepared by Soil & Environmental Consultants, PA (S &EC) in
order to present qualitative site monitoring data collected during the period January 2011 through
December 2011 for the Morrisville Community Park Stream and Riparian Buffer Restoration
Project in Morrisville, Wake County, North Carolina This data represents Year Two of the
required two year qualitative monitoring
12 Protect History
The Town of Morrisville proposed the restoration of approximately 3,200 linear feet of stream
channel and approximately 6 5 acres riparian buffer for the purpose of providing compensatory
mitigation for unavoidable stream and Neuse riparian buffer impacts associated with its
development projects The mitigation credits generated within the Morrisville Community Park
were used to compensate for impacts specifically related to the Crabtree Crossing Parkway —
Town of Morrisville (DWQ project # 01 -1380) The remaining stream and buffer restoration
credit yields will be utilized to offset future impacts proposed and funded by the Town of
Morrisville
The stream and riparian buffer credits proposed in the Mitigation Plan are as follows
Stream Restoration 3,252 linear feet
Neuse Riparian Buffer Restoration — Zone 1 4 52 acres (196,8912 sq ft )
Neuse Riparian Buffer Restoration— Zone 2 2 44 acres (106,286 4 sq ft )
The mitigation project was completed within the confines of the approximately 32 -acre
Morrisville Community Park located east of Davis Drive (SR 1613), accessible from Morrisville
Parkway (SR 3060) This site is located within the Neuse River Basin, USGS Hydrologic Unit
Code 03020201 and subbasin 030402 (USGS 1974 and NCDENR 1999)
Quantitative site monitoring of the restoration site was performed by S &EC for a period of five
(5) years During Monitoring Year 4 (2008), S &EC coordinated with North State Environmental,
Inc (the original construction contractor) to repair areas of erosion, bed scour, and collapsed
structures as described in our letter dated August 13, 2008 These repairs were performed in
accordance with the approved Stream Repair and Stabilization Plan dated October 18, 2007
During an on -site meeting on January 21, 2009 with Mr Eric Kulz of the NC Division of Water
Quality (DWQ), portions of the stream buffer were identified as lacking the necessary woody
vegetation to receive stream or riparian buffer mitigation credit As described by Mr Kulz, in
order to receive stream credit, wooded riparian buffers a mimmum of 30 feet in width are
required on both sides of the restored stream In order to receive riparian buffer credit, wooded
riparian buffers are required to be a minimum of 50 feet in width Buffer credit is assessed
separately on each side of the stream

An on -site evaluation of buffer width including the identification of buffer areas lacking in
woody vegetation was performed by S &EC on December 22, 2009 Based on S &EC's
observations of areas lacking woody vegetation, portions of the site were re- planted in 2010 A
follow -up on -site evaluation of buffer width and assessment of vegetation success was performed
by S &EC between May and July of 2010 The Year One Qualitative Monitoring report was
submitted in April of 2011
Evaluation of buffer widths and monitoring of replanted areas continued through 2011
Following discussion with the Town of Morrisville, S &EC recalculated the apparent stream and
buffer credits based on observations made in 2011 These observations and calculations are
presented in this Year Two Qualitative Monitoring report

2 0 SITE MONITORING METHODS
As described in the approved Mitigation Plan, the restoration site was to be quantitatively
monitored for five consecutive years or until the required success criteria has been met as
determined by the North Carolina Department of Environment and Natural Resources
(NCDENR), NC -DWQ, and the US Army Corps of Engineers (USACE) As required by DWQ,
following the five -year quantitative monitoring, qualitative monitoring was initiated for a period
of two years following the 2010 replanting of areas lacking woody vegetation
2 1 Buffer Vegetation Monitoring
In May 2010, three (3) new vegetation monitoring plots were installed within recently planted
areas of the riparian buffer The locations of these plots are shown on the Monitoring Layout in
Appendix A Each plot consists of 100 square meters, or approximately 1075 square feet)
cornered by four PVC stakes and located by GPS Vegetation data gathered annually within each
plot includes species and number of each species present As described in the Mitigation Plan, an
overall site stem density of 320 stems per acre is required in order to meet the vegetation success
criteria
A corner of each vegetation monitoring plot also serves as a permanent photo point, with photos
taken during each monitoring visit
2 2 Stream Channel Monitoring
A total of eighteen (18) selected photo points was established to document stream channel
conditions, with photos taken during each monitoring visit Photo points were established at
areas of potential channel or bank erosion in order to assess the stability of these areas and to
determine whether further channel repairs are needed
2 3 Beaver Activity Monitoring
During each monitoring visit, beaver activity was noted Please refer to section 3 3 for an
account of beaver activity observed during the 2011 monitoring year

3 0 SITE MONITORING RESULTS
3 1 Buffer Vegetation Monitoring Results
During the 2011 vegetation monitoring, both recently planted and existing volunteer or planted
woody stems were counted within each vegetation monitoring plot The average number of
(recently planted and volunteer) stems per sample plot is 16 33 stems, which corresponds to a
site stem density estimate of approximately 661 stems per acre
The following table lists the total number of live stems and shows species diversity within each
vegetation monitoring plot for the 2011 monitoring year
Planted Species
VP1
VP2
VP3
Year 1
Year 2
Year 1
Year 2
Year 1
Year 2
2010
2011
2010
2011
2010
2011
River Birch
1
1
9
3
0
0
Betula nr ra
Tulip Poplar
1
1
0
0
1
1
Lrnodendron tuli r era
American Sycamore (Platanus
1
1
0
0
6
4
occrdentahs
Willow Oak
4
4
1
1
1
1
uercus hellos
Northern Red Oak (Quercus
1
1
0
0
0
0
rubra
Volunteer Woody Species
VP1
VP2
VP3
Silver Maple
0
0
2
3
0
0
Acer saccharrnum
Green Ash
10+
10+
2
6
0
0
Fraxrnus enns lvanica
Sweet Gum
0
3
0
0
2
2
Lr uidambai s racy ua
Wax Myrtle
1
1
0
0
0
0
Morella ceri era
Black Willow
2
3
0
0
1
1
Salrc m ra
Elderberry
0
0
1
1
1
1
Sanibucus canadensrs
American Elm
0
0
0
0
1
1
Ulmus americanus
Silky Dogwood
0
0
0
4
0
0
Coinus amomum
Red Maple
0
0
0
4
0
0
(Acer i ubr urn)
21+
25+
15
22
13
11
(8 planted
(8 planted
(10 planted
(4 planted 18
(8 planted 5
(6 planted 5
Total
13+ vol
17+ vol
5 vol
Vol )
vol
Vol
In summary, the vegetative component of the mitigation effort meets total stem density
criteria for the 2011 monitoring year

Vegetation monitoring plot photos are presented in Appendix B
Potential Riparian Buffer Credit Loss
As noted in the Year One Qualitative Monitoring Report, several areas within 50 feet of the top
of bank of the restored stream were lacking in woody vegetation These areas were observed
closely during 2011 monitoring to determine if the required woody vegetation success criteria
has been met
In its current condition the lack of the full 50 -foot wooded riparian buffer (in both Zones 1 and 2)
in the areas shown on the attached figure would result in a loss of approximately 10,640 square
feet (0 24 acre) of Zone 1 buffer credit and 10,247 square feet (0 24 acre) of Zone 2 buffer credit
Based on these observations, the expected buffer credit totals are as follows
Neuse Riparian Buffer Restoration — Zone 1 186,2512 square feet (4 27 acres)
Neuse Riparian Buffer Restoration — Zone 2 96,039 4 square feet (2 20 acres)
3 2 Stream Channel Monitoring Results
During the 2011 monitoring, the stream channel appeared generally stable along the restoration
reach Comparative photographs of the stream at established photo points show an increase in
bank vegetation and little evidence of continued or worsening bank erosion Stream channel
monitoring photos are presented in Appendix C
Potential Stream Restoration Credit Loss
The on -site assessment found that the majority of the restored stream on -site currently has a
wooded riparian buffer at least 30 feet in width on both sides One area of sparse vegetation was
found within Zone 1 of the stream buffer Based on the on -site data collection, the area within
Zone 1 that is lacking in woody vegetation is approximately 83 square feet (0 002 acre) Please
refer to the attached figure for the location of this area
Based on the on -site assessment, the lack of vegetation in Zone 1 of the riparian buffer resulted
in the loss of approximately 18 linear feet of stream credit
NOTE The length of potential loss of stream credit was calculated from the outer edges
of the area lacking Zone 1 vegetation perpendicular to the As -built channel
Based on these observations, the expected stream restoration credits total 3,234 linear feet
3 3 Beaver Activity Monitoring Results
The removal of beavers and their dams from the site during 2010 appears to have improved the
stream's natural channel function and its ability to convey higher flows without degradation If

beaver activity is curtailed at the site, we expect the stream to continue functioning as per the
design intent
Following beaver trapping and dam removal in the early part of 2010, beaver activity lessened at
the site, however, some smaller dams were left in place and some recent beaver activity was still
noted during early monitoring visits By the December 2010 monitoring visit, beaver activity had
again increased at the site Larger dams had been constructed and an increase in beaver damage
to buffer vegetation was observed
Beaver trapping and dam removal continued throughout 2011 Beaver activity has continued
through the year despite efforts by the Town of Morrisville to slow the activity in the area The
Town of Cary is also trapping beavers and removing dams on sites upstream and downstream of
the Morrisville Park site Small areas of buffer vegetation were affected by beaver activity but
appear to be resproutmg in these areas
S &EC recommends continued beaver trapping and dam removal at the site in order to reduce the
potential for damage to the stream and buffer vegetation
3 4 Qualitative Monitoring Summary — 2011
Based on the 2011 monitoring of the stream channel and riparian buffer vegetation, the majority
of the site has been successful as set forth in the Mitigation Banking Instrument Some areas of
the site currently do not meet the buffer width requirement to receive buffer credit for these
areas The Town of Morrisville has determined that the amount of restoration credits needed for
future anticipated impacts is well below the amount proposed in the original restoration plan
Therefore, we request that the amount of stream and buffer restoration credit awarded to the
Town of Morrisville is equal to the amount of the current successful restoration areas as opposed
to the amount previously requested The change in the amount of proposed restoration credits is
listed below
Stream and Buffer Restoration Credits Proposed in the Mitigation Plan
Stream Restoration 3,252 linear feet
Neuse Riparian Buffer Restoration — Zone 1 4 52 acres (196,891 2 sq ft )
Neuse Riparian Buffer Restoration — Zone 2 2 44 acres (106,286 4 sq ft )
Stream and Buffer Restoration Credits Proposed Based on Current Site Totals
Stream Restoration 3,234 linear feet
Neuse Riparian Buffer Restoration — Zone 1 4 27 acres (186,2512 sq ft )
Neuse Riparian Buffer Restoration — Zone 2 2 20 acres (96,039 4 sq ft )
Based on these final totals of successful restoration areas and the lack of future anticipated
impacts, we request that credits based upon the current site total are awarded to the Town
of Morrisville and that no future monitoring is required

Appendix A
Site Maps

VEGETATION PHOTO 12 VEGETATION PHOTO 9 PHOTO 8 _
SCALE 1 " = 1 50' w 'L'
MONITORING MONITORING I .
PHOTO 14 PLOT 3
PLOT 2— 150 75 O 150 w
PHOTO 7 j
--7-- 100' CAROU J
�- E O
J - -- -- — —
- PHOTO 5
rp
PHOTOS 3 t 4 -- z
(L o
PHOTO 2 I 1 ►- ►_'
° o - - - - -- oC z
o
600 _ O
D 0 O \ 1 12 1-
° p -- PHOTO I - > w
o r EXI5TIN BALL FIELD Vl z W
w i
PHOTO 15 t o
C. ° PHOTO I I > > Q) Q
<� / — I (s) CD LL, PHOTO I G ° ° °° ° PHOTO 13 �`'\ l 0 Q
°° ° a PHOTO 10 �/' 1 D
° ° ow t ° ° PHOTO 6
PHOTO 17 °°
° di
VEGETATION MONITORING
P LOT I • I
PHOTO 18 °° (D
I c�
NOTES:
I ) ORIGINAL BOUNDARY t - OPOGRAPHIC
5LIRVEY'ERFORMED BY:
WIThiER5 t RAVENEL, CARY, NC IN 2002.
2) AS -31I_T TOPOGRAPHIC & CONTOUR DATA
MODIFIED 4 INCORPORATED'N -O 51TE PLAT U51NG
ORIGINAL SURVEY DATA d LIMI-ED ENGINEERING
SURVEY BY TOTAL STATION IN JANUARY
FEBRUARY OF 2004.
3) LOCATION OF PARKING, BALLFIE_D5. AND ANY
OTHER PARK FEATURES TAKEN FROM WITHERS €
RAVENEL PPOP05ED 517E PLAN.
4) ALL ELEVATION5 ARE RELATIVE TO DATUM
DEFINED BY WITHERS $ KAVENEL.
5) VEGE -ATION MONITORING PLOTS GP5- LOCATED BY
5t-EC ON MAY 15, 2010.
of
Nu
N
i
0201 1 Soil 4 Environmental Con5ultant5, PA. All nght5 reserved.
VEGETATION MONITORING PLOTS
® A5 -BUILT PAVED GREENWAY
NEU5E RIPARIAN BUFFER ZONE I
NEU5E RIPARIAN BUFFER ZONE 2
QUALITATIVE MONITORING LAYOUT
F �
• o
U
I �C73 F
1�1 �
a
N�1 �
I �

0
0
N
N
A
w
\r / 0
\�
0 0 °0 0 °
va
0 D
VEGETATION PLOT 2
'' o
PI ° O
1 I ° ° D
13 0000
° ^ O 1 VEGETATION PLOT I
O C
o
° t
°
i0 0
i
NOTE5:
) ORIGINAL BOUNDARY # TO °OGKAPMIC
SURVEY PERFORMED BY:
WIT -IER5 & RAVENEL. CARY, NC IN 2002.
2) A5 -(3UILT - OPOGRAPMIC b CONTOUR DATA
MODIFIED t- INCORPORATED INTO 51TE PLAT U51NG
ORIGINAL SURVEY DATA t LIMITED ENGINEERING
5URVEY BY TOTAL STATION IN JANUARY t
FEBRUARY OF 2004.
3) _IMIT OF SURVEY DATA COLLECTED 15 BETWEEN
GREENWAY TRAIL AND MOPR15VILLE PARK ONLY.
LOCATION OF PARKING. BALLFIELD5. AND ANY
OTHER PARK FEATURE5 TAKEN FROM WITHERS t
RAVENEL PROPOSED SITE P-AN AND WERE NOT
INC_UDED IN hATCMET'5 GROVE 5-REAM 5URVEY.
l) ALL ELEVATIONS ARE RELATIVE TO DATUM
DEFINED BY WITMER5 € RAVENEL.
5) BUFFER DE! INEATION PERFORMED BY 54EC ON
DECEMBER 22, 2009 U51NG GP5
G) I) VEGETATION A55E55MENT OF RECENTLY
PLANTED RIPARIAN BUFFER5 PERFORMED BY 54EC
ON JULY 12, 2010 U51NG GP5
O
°
9
0
\0
0
POTENTIAL L055 -�
OF STREAM CREDIT
EXISTING BALL FIELD
POTENTIAL LOSS OF STREAM CREDIT
DUE TO LACK OF ZONE I VEGETATION:
18 LF
®LOSS OF ZONE I BUFFER CREDIT:
10,G40 5F (0.24 AC)
®LOSS OF ZONE 2 BUFFER CREDIT:
10,247 SF (0.24 AC)
® AS -BUILT PAVED GREENWAY
NEUSE RIPARIAN BUFFER ZONE I
NEUSE RIPARIAN BUFFER ZONE 2
9-1 1 1
b ®2009 Environmental Consultants, PA. All rlgNt5 reserved.
c
VEGETATION PLOT` \3
5CALE 1 " = 150'
� O -
LL
150 75 0 150
� w
L _J
1W CAROLINA F LL-
EASEb CD 0-/ Q
- - -e - - - - -- 17—
D
w
- -- - - -- w O
V J WI^
( /
I �O z U
�Lu O z
Lu U E_
J ' z
Q g
3 Lu
W/ F—
•�•�� ( O
lo
1 �
aQ
�I
a
Ia
od
I Vo
e�
I � U
N �
U 3
z
I o teo
'v
I D �
a
v
I c
Oo
I �/J

Appendix B
Vegetation Monitoring Plot Photos

Morrisville Park Stream and Riparian Buffer Restoration Site S &EC Project No. 6798.E3
Town of Morrisville April 2012
Vegetation Monitoring Plot Photos — Morrisville Park
Stream and Riparian Buffer Restoration Site
Vegetation Monitoring Plot 1 — 9/9/2010
Vegetation Monitoring Plot 1— 10/25/2011

•
-'41Wr+�
;
�-
�•
� 1
L tom, jy 4�,y �.I��
/
`
+
Nx
i 4%
ki
Y '.r
T~ T A41
G j 1
t

Morrisville Park Stream and Riparian Buffer Restoration Site S &EC Project No. 6798.E3
Town of Morrisville April 2012
Vegetation Monitoring Plot 3 — 9/9/2010
Vegetation Monitoring Plot 3 — 10/25/2011

Appendix C
Stream Channel Monitoring Photos

Morrisville Park Stream and Riparian Buffer Restoration Site S &EC Project No. 6798.E3
Town of Morrisville March 2012
Stream Monitoring Photos — Morrisville Park
Stream and Riparian Buffer Restoration Site
Photo Point 1— 3/2/2011
Photo Point 1 — 10/25/11

y..
AW
r

Morrisville Park Stream and Riparian Buffer Restoration Site S &EC Project No. 6798.133
Town of Morrisville March 2012
Photo Point 3 — 3/2/2011
Photo Point 3 — 10/25/11

I I
Ift
IN
ol
.1

Morrisville Park Stream and Riparian Buffer Restoration Site S &EC Project No. 6798.E3
Town of Morrisville March 2012
Photo Point 5 - 3/2/2011
Photo Point 5 - 10/25/11

Morrisville Park Stream and Riparian Buffer Restoration Site S &EC Project No. 6798.E3
Town of Morrisville March 2012
Photo Point 6 - 3/2/2011
Photo Point 6 - 10/25/11

Morrisville Park Stream and Riparian Buffer Restoration Site S&EC Project No. 6798.E3
Town of Morrisville March 2012
Photo Point 7 — 3/2/2011
Photo Point 7 — 10/25/11

Morrisville Park Stream and Riparian Buffer Restoration Site S &EC Project No. 6798.E3
Town of Morrisville March 2012
Photo Point 8 — 3/2/2011
Photo Point 8 — 10/25/11

mil.

Morrisville Park Stream and Riparian Buffer Restoration Site S&EC Project No. 6798.E3
Town of Morrisville March 2012
Photo Point 10 — 3/2/2011
Photo Point 10 — 10/25/11
10

Morrisville Park Stream and Riparian Buffer Restoration Site S&EC Project No. 6798.133
Town of Morrisville March 2012
Photo Point 11— 3/2/2011
Photo Point 11 — 10/25/11

Morrisville Park Stream and Riparian Buffer Restoration Site S &EC Project No. 6798.E3
Town of Morrisville March 2012
Photo Point 12 — 3/2/2011
Photo Point 12 — 10/25/11
12

Morrisville Park Stream and Riparian Buffer Restoration Site S&EC Project No. 6798.E3
Town of Morrisville March 2012
Photo Point 13 - 3/212011
Photo Point 13 - 10/25/11
13

Morrisville Park Stream and Riparian Buffer Restoration Site S &EC Project No. 6798.E3
Town of Morrisville March 2012
Photo Point 14 — 3/2/2011
Photo Point 14 — 10/25/11
14

Morrisville Park Stream and Riparian Buffer Restoration Site S &EC Project No. 6798.E3
Town of Morrisville March 2012
Photo Point 15 - 3/2/2011
Photo Point 15 - 10/25/11
15

Morrisville Park Stream and Riparian Buffer Restoration Site S &EC Project No. 6798.E3
Town of Morrisville March 2012
Photo Point 16 - 3/2/2011
Photo Point 16 - 10/25/11
16

Morrisville Park Stream and Riparian Buffer Restoration Site S &EC Project No. 6798.E3
Town of Morrisville March 2012
Photo Point 17 — 3/2/2011
Photo Point 17 — 10/25/11
17

sville Park Stream and Riparian Buffer Restoration Site S &EC Project No. 6798.E3
of Morrisville March 2012
Photo Point 18 — 3/2/2011
Photo Point 18 — 10/25/11
18