20040639 Ver 1_Mitigation Information_20121218

THEMLPA
GROUP
TRANSPORTATION CONSULTANTS
A Unit of
December 17, 2012
Mr. Eric Kulz
NCDWQ - Wetlands, Buffers, Stormwater Compliance and Permitting Unit
512 North Salisbury Street
Archdale Building - 9th floor
Raleigh, NC 27604
Re: Halifax- Northampton Regional Airport (DWQ# 04 -0639) Stream Mitigation Site
Mr. Kulz:
On behalf of the Halifax- Northampton Regional Airport Authority, THE LPA GROUP INCORPORATED (now a Unit of the
Michael Baker Corporation) obtained a Section 404 Permit (Action ID 200420672 and 200421162) and Section 401 Water Quality
Certification (DWQ# 04 -0639) for the construction of the Airport in 2004. As part of the construction of the Airport, a 1.5 -acre
wetland mitigation site and a 7.25 -acre stream buffer mitigation site were restored to compensate for unavoidable impacts
associated with the construction of the Airport.
Both the wetland and stream buffer mitigation site were monitored for success for a five year period. In 2010, the fifth year of
monitoring, the stream buffer mitigation site did not meet the required 320 trees per acre to be considered successful. As
requested by DWQ, in a letter dated January 4, 2011, in order to address this deficiency the site was replanted on October 9, 2012.
Approximately 3.7 acres of the site was planted with 450 trees (at a rate of 122 trees per acre).
The stream site will be monitored for two additional years, occurring at the end of the growing season in 2013 and 2014. Reports
detailing the results of the monitoring would be submitted to the USACE and DWQ in December of 2013 and 2014.
The details of the replanting can be found in the attached report, which also includes Project Figures, Issued Permits (Appendix
A), Project Correspondence (Appendix B), and Site Photographs (Appendix C).
Please contact me at 843 - 745 -8808 or esmailaa.mbakercorp.com if you have any questions or require additional information.
Sincerely,
THE LPA GROUP INCORPORATED
A[Unit of the Michael: Baker Cororation
G J.,
Edward J. Small
Environmental Scientist
Attachments
Cc: Ms. Dia Denton, Halifax- Northampton Regional Airport Authority (w /Attachments)
Mr. Thomas Brown, USACE (w /Attachments)
Mr. James Farthing, P.E., Michael Baker Corp. (w /Attachments) [)
Mr. Gordon Murphy, Michael Baker Corp. (w /Attachments) �'/ �`(� O DO
Project File (w /Attachments)
DEC 1 8 2012
DENR - WATEN QUALIT`f
... - -
4401 BEI.LE OAKS DRIVE, SUITE 105 • NORTH CHARLESTON, SC 29405 • Phone [phone] • Fax [phone] • www.lpagroup.com

Halifax- Northampton Regional Airport
Riparian Buffer Replanting
December 2012
Introduction
On June 30, 2004, the United States Army Corps of Engineers (USACE) issued a Section
404 Permit (Action ID 200420672 and 200421162, DWQ Project # 04 -0639) to the
Halifax- Northampton Regional Airport located in Halifax, North Carolina (refer to
Figure 1) for 0 36 -acre of fill placed in USACE jurisdictional wetlands, 280 linear feet of
impact to an un -named tributary to Quankey Creek, and 1,642 linear feet of impacts to
un -named intermittent drainages (refer to Figure 2) Copies of the Section 404 Permit
and Section 401 Water Quality Certification can be found in Appendix A These impacts
are the result of the runway site preparation for construction of an airport on new
location Wetlands that were impacted were of low quality, consisting of former farm
ponds and naturalized ditches Streams that were impacted were located in former
agricultural fields, channelized, and did not have vegetated riparian buffers It was
determined by the USACE and North Carolina Division of Water Quality (DWQ) at an
on -site meeting in March 16, 2004, that the channelized intermittent drainages did not
provide any important biological function, and mitigation would not be required for the
1,642 linear feet of impacts to these drainages
Construction of Airport Site
Construction began on the Airport in September of 2004, and the Airport opened to the
public in the summer of 2009 The project required approximately 596,000 cubic yards
of unclassified excavation and disturbed approximately 192 acres on the Airport property
This included grading of the runway, parallel taxiway, connector taxiways, and the apron
for the Airport Impacts resulting from the construction of these facilities, 0 36 -acre of
wetland impacts and 280 linear feet of stream impacts, required mitigation The project
also included construction of three permanent stormwater detention basins to capture on-
site runoff All on -site runoff was routed to the sediment ponds A variety of erosion and
sediment control measures were employed during construction to protect adjacent waters
and wetlands A sequence of riprap check dams, rock dams, and temporary sediment
traps were used to control sediment in the grassed drainage ditches on the site
Additional sediment was trapped using three sediment basins during construction Silt
fence was also used to contain runoff from slopes and to protect surrounding wetlands
during construction A combination of Type 1, Type 2, and Type 3 erosion control
matting was used on side slopes and in ditches to prevent erosion and enable growth of
permanent vegetation Side slopes on ditches and fill slopes were steepened to 3 1 in
order to minimize the disturbed area and avoid impacts to adjacent wetlands Where
ditches were required to be located adjacent to, or, in the edges of wetlands, the soil
adjacent to the ditches was compacted and a low berm was constructed adjacent to the
ditches to prevent inadvertent wetland draining Additionally, Best Management
Practices including, but not limited to, silt fencing, straw bales, seeding and mulching
were used where appropriate
1
12/17/2012

Establishment of Mitigation Sites
Onsrte wetland mitigation consisted of wetland restoration, which involved replanting a
1 5 -acre on -site wetland with native hardwood tree species (refer to Figure 3) This
planting provided a 4 1 mitigation ratio (1 5 acres mitigated to 0 36 acres impacted)
This site met the success criteria (260 trees per acre) at the end of the fifth monitoring
period in 2010 and was not included in the replanting plan in 2012
To compensate for impacts to the channelized perennial stream, a 7 25 -acre buffer area
was planted with native hardwood species along a 1,485 linear foot section of two
perennial streams, located on Airport property south of SR 1619 (refer to Figure 3) The
buffer'site is located along a portion of Little Marsh Swamp and one of its tributaries,
both of which � are in the Tar - Pamlico River Basin The establishment of vegetated
riparian buffer provides water quality benefits to streams by creating a forested buffer
between the stream and future development at the Airport, in an area that consisted of
former agricultural fields vegetated with successional herbaceous species
Tree seedlings were planted in the wetland restoration and stream buffer sites in the
spring of 2006 They were planted on 10 -foot centers, in rows spaced 10 feet apart,
which provided a total of 436 trees per acre (refer to Figure 4) A total of 654 trees were
planted in the wetland restoration site and 3,161 trees were planted in the stream buffer.
The trees were planted by hand to avoid disturbance to the soil The following tree
species in Table 1 were originally planted within the mitigation site
Based on the results of the 2006 and 2007 monitoring events, it was determined that
replanting would be necessary to establish the prescribed survivability rates Using the
survival rate calculated after the 2007 count an estimate of the amount of trees needed to
r6plant the site was determined Based on these calculations, approximately 3,400 trees
were replanted within the wetland restoration site and the stream buffer site in December
of 2007 Due to species shortages of the original planted species at the time of the
replanting, the species shown in Table 2 below details species planted in the stream
buffer site The site was replanted by installing the seedlings throughout the sites
following the original planting specifications (10 foot centers) Live trees that remained
from the original planting were left in place and used as a baseline for determining where
to plant the new seedlings
2
12/17/2012
Table 1
Planted Tree S ecies 02006)
Common Name
Species
Wetland Indicator
Willow oak
Quercus phellos
FACW-
Black gum
N ssa s lvatcca
FAC
Water oak
Quercus nc ra
FAC
Overcup oak
I Quercus l rata
OBL
Based on the results of the 2006 and 2007 monitoring events, it was determined that
replanting would be necessary to establish the prescribed survivability rates Using the
survival rate calculated after the 2007 count an estimate of the amount of trees needed to
r6plant the site was determined Based on these calculations, approximately 3,400 trees
were replanted within the wetland restoration site and the stream buffer site in December
of 2007 Due to species shortages of the original planted species at the time of the
replanting, the species shown in Table 2 below details species planted in the stream
buffer site The site was replanted by installing the seedlings throughout the sites
following the original planting specifications (10 foot centers) Live trees that remained
from the original planting were left in place and used as a baseline for determining where
to plant the new seedlings
2
12/17/2012

Vegetation Monitoring and Success Criteria
The wetland and stream buffer sites were monitored annually for five years (2006 -2010)
and began at the end of the growing season in 2006 A report detailing the findings of the
sample events was prepared for submission to the USACE and DWQ annually
Permanent sample plots were randomly established in each of the mitigation sites and
surviving tree species were counted within those plots to determine the percent
survivability of the planted tree species A comprehensive list of volunteer species
observed within the sites was also recorded Additionally, observations on the hydrology
in the wetland restoration site were made during the sampling events
The 2004 Mitigation Plan set forth the success criteria of the survival of 260 of the
planted trees per acre at the end of the five -year monitoring period in both the stream and
wetland sites However, during review of the mitigation plan DWQ indicated the stream
site would require survival of 320 trees per acre to meet requirements per 15A NCAC
02B 260 (9)(d)(11) Table 3 below details the results of the monitoring of the stream site
over the five year period from 2006 -2010
As indicated in the table above, the site did not meet the DWQ's 320 trees per acre
criteria throughout the monitoring period, even with additional planting in 2007 This is
likely attributed to periods of drought during the first half of the monitoring period
The 2010 Monitoring Report was submitted to the USACE and DWQ in December of
2010 In review of the report, DWQ indicated in a letter dated January 6, 2011
(Appendix B), that the site would need to be replanted again to meet the 320 tree per acre
criteria, and monitored for an additional two years DWQ also indicated that the site
could be abandoned and off set with the purchase of applicable mitigation The
abandonment option was determined to not be feasible due to the costs, and the Halifax-
3
12/17/2012
Tree Goon
exults 2110 -2011
ream�Buf%r �stortJo
Site
2006
2007
2008*
2009
2010
Total Trees Counted 74
34
101
123
198
Survival Rate ( %) 23
11
32
40
63
Trees Per Acre 100
48
135
174
272
*The site was replanted in December of 2007.
As indicated in the table above, the site did not meet the DWQ's 320 trees per acre
criteria throughout the monitoring period, even with additional planting in 2007 This is
likely attributed to periods of drought during the first half of the monitoring period
The 2010 Monitoring Report was submitted to the USACE and DWQ in December of
2010 In review of the report, DWQ indicated in a letter dated January 6, 2011
(Appendix B), that the site would need to be replanted again to meet the 320 tree per acre
criteria, and monitored for an additional two years DWQ also indicated that the site
could be abandoned and off set with the purchase of applicable mitigation The
abandonment option was determined to not be feasible due to the costs, and the Halifax-
3
12/17/2012

Northampton Regional Airport County agreed to replant the site (refer to letter in
Appendix B)
2012 Site Replanting
To determine the amount of trees necessary to meet the DWQ's 320 tree per acre criteria,
the data from the 2010 monitoring effort was used, which indicate that at least an
additional 48 trees per acre would need to be added to the site Using the sample plot
data from the monitoring period, walking the project site, and aerial photography,
portions of the site were identified as deficient of existing trees and in need of replanting
(refer to Figure 5) Based on this data, approximately 3 7 acres of the site was identified
for replanting with approximately 450 trees (122 per acre) The 450 tree figure was
determined using the deficiency identified in the 2010 monitoring period, and walking
the site to determine the planting density that would fit within the existing trees The
addition of 122 trees per acre would increase the likelihood of success, since the total
trees per acre using the 2010 data would be 394 This allows for mortality to occur
during the monitoring while still meeting the 320 tree per acre requirement
In October of 2012, approximately 3 7 acres of the site was replanted by hand with 450
one gallon container trees The 450 trees include the following species in Table 4 below
The site was replanted by strategically placing the trees throughout the site following the
original planting specifications (10 foot centers) Live trees that remained from the
original planting were left in place and used as a baseline for determining where to plant
the new seedlings Photographs of the replanting are included in Appendix C
Monitoring
The stream site will be monitored for two additional years, occurring at the end of the
growing season in 2013 and 2014 Reports detailing the results of the monitoring would
be submitted to the USACE and DWQ in December of 2013 and 2014
4
12/17/2012
able 4
S e Buffer Siteu
0
lanted Thee
S es2012s
Common Name
Species
Wetland Indicator
Amount
Sycamore
Platanus occidentalts
FACW
120
Green ash
Fraxtnus pennsylvanica
FACW
110
Willow oak
Quercus phellos
FACW
110
Red maple
Acer rubrum
FAC
110
TOTAL
-
450
The site was replanted by strategically placing the trees throughout the site following the
original planting specifications (10 foot centers) Live trees that remained from the
original planting were left in place and used as a baseline for determining where to plant
the new seedlings Photographs of the replanting are included in Appendix C
Monitoring
The stream site will be monitored for two additional years, occurring at the end of the
growing season in 2013 and 2014 Reports detailing the results of the monitoring would
be submitted to the USACE and DWQ in December of 2013 and 2014
4
12/17/2012

FIGURES

APPENDIX A
PERMITS

U.S. ARMY CORPS OF ENGINEERS
Wilmington District
Action ID: 200420672.200 21162 County: Halifax
GENERAL PERMIT (REGIONAL AND NATIONWIDE) VERIFICATION
Property Authorized
Owner Aiport Auth Agent The LPA Group of NC P.A.
Attn. Terry Bumpus
Address P.O. Box 38 Address 4904 Professional Court Suite 201
Roanoke Rapids NC 27870 -0038 Raleigh NC 27609
Telephone Number 252 -533 -2840 Telephone Number. 919- 954 -1244
Size and Location of Property (waterbody, Highway name /number, town, etc.): The property bisects
S.R. 1619, approximately 1 mile south of its intersection with S.R. 1618, adjacent to Quankey Creek and
Little Marsh Swamp, north of Halifax, Halifax County, North Carolina.
Description of Activity: This permit authorizes mechanized landclearing, the installation of culverts, and
the placement of fill associated with the construction the Halifax County Airport. Permanent impacts
Little Marsh Swamp authorized by this permit are approximately 0.07 acre of wetlands (AID #
200420672). Permanent impacts to wetlands and waters to Quankey Creek are 0 29 acre of wetlands and
280 linear feet of stream channel (AID #. 200421162).
(SEE SPECIAL CONDITIONS)
Applicable Law: X Section 404 (Clean Water Act, 33 USC 1344) only.
Section 10 (River and Harbor Act of 1899) only.
Authorization: Regional General Permit Number
39 Nationwide Permit Number
Any violation of the conditions of the Regional General or Nationwide Permit referenced above may
subject the permittee to a stop work order, a restoration order, and/or appropriate legal action.
This Department of the Army Regional General Permit or Nationwide Permit verification does not
religve the permittee of the responsibility' to obtain any .other required Federal, State, or local
approvals /permits. The permittee may need to contact appropriate State and local agencies before
beginning work. If you have any questions regarding the Corps of Engineers regulatory program,
please contact Kevin Yates at telephone number (919) 876 - 8441 extension 30
/V
Regulatory Project Manager
Date June 30, 2004 Expiration Date June 30, 2006
SURVEY PLATS, FIELD SKETCH, WETLAND DELINEATION FORM, ETC., MUST BE ATTACHED
TO THE YELLOW (FILE) COPY OF THIS FORM, IF REQUIRED OR AVAILABLE.
CF: Division of Water Quality, Attn: Steve Mitchell, 1628 Mail Service Center, Raleigh, NC 27699 -1628

Action ID: 200420672, 200421162 County: Halifax
SPECIAL PERMIT CONDITIONS
1) Mitigation
(a) The Permittee shall fully implement the compensatory mitigation plan, entitled
Halifax- Northampton Regional Airport Wetland And Stream Mitigatation Plan submitted
on Mayl9, 2004. Activities prescribed by this plan shall be initiated prior to, or
concurrently with, commencement of site preparation for Phase 1. The permittee shall
notify the Corps of Engineers within 30 days from completion of the above mitigation
plan.
(b) The permittee will monitor the mitigation site, annually for five years, according to
the guidelines described in the Monitoring and Success Criteria section of the Halifax -
Northampton Regional Airport Wetland And Stream Mitigatation Plan submitted on
May19, 2004. An annual monitoring report of the mitigation site will be submitted
every year, for five years, to the Corps of Engineers, and will initiate after the first
growing season. Success will be achieved when at the end of the five -year monitoring
period 260 of the planted trees per acre survive.
(c) The permittee shall maintain the mitigation area described below in its natural
condition, in perpetuity. `(Exhibit `A' Wetland and Stream Mitigation Plan" for the
Halifax- Northampton Regional Airport, dated June 28, 2004). Prohibited activities within
the "Conservation Area" specifically include, but are not limited to: the construction or
placement of roads, walkways, buildings, signs, or structures of any kind; filling, grading,
excavation, leveling, or any activity that may alter the drainage patterns on the property;
the cutting, mowing, destruction, removal, or damage of any vegetation; disposal or
storage of any debris, trash, garbage, or other waste material. In addition, the permittee
shall take no action, whether on or off the preservation property, which will adversely
impact the wetlands and other waters on the "Conservation Area ", except as specifically
authorized by this permit.
2) Declaration of Restrictions
(a) The permittee shall not sell or otherwise convey any interest in the "Conservation
Area" to any third party, without 10 days prior written notification to Wilmington District
Corps of Engineers in writing, which writing shall reference this permit Action ID
number.

(b) Any sale, lease, or other conveyance of the "Conservation Area" shall include
restrictions on the use of the property described in condition 1, above, which conditions
shall be enforced by the permittee. Such restrictions shall include language providing for
third party enforcement rights in favor of the Corps of Engineers. Such restrictions must
be approved prior to conveyance by the Corps of Engineers.
(c) Within 30 days from completion of site preparation of Phase 1, the permittee shall
execute and cause to be recorded in the Halifax County Register of Deeds "Declaration of
Restrictions" the form of which was agreed upon by the Permittee and the Corps, for the
purpose of maintaining the "Conservation Area ", as shown on the recorded plat labeled:
"Exhibit A' Wetland and Stream Mitigation Plan "for the Halifax- Northampton
Regional Airport, dated June 28, 2004, in its restored state (via the submitted mitigation
plan dated May 19, 2004) in perpetuity. The permittee shall enforce the terms of the
'Declaration of Restrictions" and, shall take no action on the property described in the
restrictions inconsistent with the terms thereof The permittee shall provide a copy of the
recorded "Declaration of Restrictions" to the Corps of Engineers within 30 days of
recording. Upon recordation of the Declaration, the requirements of conditions (a) and
(b) will be considered satisfied with respect to the preservation area protected by that
Declaration.

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June 18, 2004 i
DWQ project # 04 -0639
Halifax County
Page 1 of 4
Hale fax - Northampton Regional Airport Authority
Attn: I& Rick Benton
P.O. Box 38
ROanoke Rapids, NC 278700038
Subject Property. Runway Site Preparadon, Que®tiim Farm Road (SR1619), Han&v, NC
tittle Quankey Creek [03 -02 -08, 23 -30, C]
Marsh Swamp (03-03-04,28-79-30-1, C Sw NSw]
Approval of 401 Water Q3uaDity Certigicablom and Autheidsadon Cerdfleats per tthe''er.
1Pamrllco River Buffer Protection Rules (15A NCAC 281.0259) with Additional Coluntions
Dear Mr. Benton.,
You have our approval, in accordance with the attached conditions and those listed below, to
Place fill within or otherwise impact 0.36 acres of wetlands, 280 feet of perennial strearn, 1,642
feet of intermittent streams and 140,422 square feet Ve) (or 3.22 acres) of protected riparian
buffers for the purpose of performing runway site preparation activities at the subject property,
as described within your application dated April 19, 2004 and received by the N.C. Division of
Water Quality (DWQ) on April 21, 2004. After reviewing your application, we have decided
that the impacts are covered by General Water Quality Certification Number(s) 3402 (GC3402).
The Certification(a) allows you to use Nationwide Permit(a) 39 when issued by the US Army
Corps of Engineers (USAGE). This Ietter shall also act as your approved Authorization
Certificate for impacts to the protected riparian buffers per 15A NCAC Zl3 .0 9. In addition,
you should obtain or otherwise comply with any other required federal, state or local permits
before you go ahead with your project including (but not limited to) Erosion and Sediment
�ntrol- amrfl�lotl�discharger�egnlations. Also, tfris^approv to-proceed with-your proposed
intapacte or to conaluct lanpacts to waters"depfcta l irn Your application shall expire upon
e$pllratioar of tine 404 PerMIL Please wrote t at if ilia USACE requires an Individual Permit
ffor this ]project, them tihls approval is snot valid awed goer will required ¢m apply for an
Ind du Certificatiorn from the I�V6fQ.
This approval is for the purpose and design that you described in your application. If you change
your project, you trust notify us and you may be required to send us a new application. If the
property is sold, the new owner must be given a copy of this Certification and approval letter and
is thereby responsible for complying with all conditions. If total Bills for this project (now or in
the future) exceed one acre of wetland or 150 linear feet of stream, compensatory mitigation may
M. C Dlvlslon of Water Quality, 401 Wetlands Certoleatlon unit,
1860 Mae Service Center, Flalelgh, NO 27899 -1650 (MaOing Addme)
2321 Crabtree Blvd, Raleigh, NO 27604 -2260 (Location)
(918) 733 -1788 (phone), 919 - 733 -8893 (fax), (h al/h2o,gU�g a uehtcwetlandal

tab/17/10f94 11:1b '3144541345 THE SPA GROUP: PAGE 02
Halifax Northampton Regional Airpoxt Authority i DWQ Ado. 04 -0639
Page 2 of 4
June Is, 2004
be required as described in 15A NCAC 2H,0506 (h). This approval requires you to follow the
conditions listed in the attached certification and any additional conditions listed below,
The Additional Conditions of the Cerdlfleation are:
1. Impacts Approved- The following impacts are hereby approved as tong as all of the other
specific and general conditions of this Certification (or Isolated Wetland Permit) are met. No
other impacts are approved including incidental impacts:
2. Compensatory bfitigadon (Final! Plan Needed) - Matigaaon must be provided for the
proposed impacts as specified in the table below. A I compensatory mitigation plan C—.
roust be approved in writing by this Office before BMT of the Impacts approved herein
an conducted. Additionally, the compensatory mitigation plan must be completely
constructed and implemented according to the plans approved by this Office before any
permanent building or runway associated with the project is occupied or utilized. The
mitigation roust be maintained according to the approved plan and permanently protected by
the use of conservation easements or similar protections. Any repairs or adjustments to the
mitigation site must be made according to the approved plan or must receive written approval
from this Office to make the repairs or adjustments.
Amount Approved
nits
Plan Location or Reference
Stream
280 (feet)
1,642 feet
A
B, C & a}
404 Wetlands
0,36 acres
1 2, 3, 41516 8t 7
Waters
0 acres
n/a
Buffers
140,422
care ft.
2. Compensatory bfitigadon (Final! Plan Needed) - Matigaaon must be provided for the
proposed impacts as specified in the table below. A I compensatory mitigation plan C—.
roust be approved in writing by this Office before BMT of the Impacts approved herein
an conducted. Additionally, the compensatory mitigation plan must be completely
constructed and implemented according to the plans approved by this Office before any
permanent building or runway associated with the project is occupied or utilized. The
mitigation roust be maintained according to the approved plan and permanently protected by
the use of conservation easements or similar protections. Any repairs or adjustments to the
mitigation site must be made according to the approved plan or must receive written approval
from this Office to make the repairs or adjustments.
Please -note that the proposed- riparian buffer restoration will treed to comaply with 15A NCAC"
02B .0260(9). Also, any flue planting should use a random method and not a grid pattern and
will need to include at least two different native hardwood tree species at a density of'320
trees per acre. Any conservation easements or other references to the Wetland Restoration
Program need to be reference instead to the Ecosystem $nhancement Program.
3. Written Stormwater hanagement Plan (Plnal Plan Needed) - An additional condition is
that a final, written stormwater management plan (including a signed and notarized
Operation and Maintenance Agreement) shall be approved in writing by this Office before
the impacts specified in this Cerdficatiosn occur per Condition No. 4 m GC No. 3402 The
stormwater management plan must include plans and specifications for stormwater
CoMpensatory Credit Mitt anon Required
Stream
280 (feet)
Wetlands
0 (acres)
Waters
0 (acres)
Buffers
1315,838 s uare feet
Please -note that the proposed- riparian buffer restoration will treed to comaply with 15A NCAC"
02B .0260(9). Also, any flue planting should use a random method and not a grid pattern and
will need to include at least two different native hardwood tree species at a density of'320
trees per acre. Any conservation easements or other references to the Wetland Restoration
Program need to be reference instead to the Ecosystem $nhancement Program.
3. Written Stormwater hanagement Plan (Plnal Plan Needed) - An additional condition is
that a final, written stormwater management plan (including a signed and notarized
Operation and Maintenance Agreement) shall be approved in writing by this Office before
the impacts specified in this Cerdficatiosn occur per Condition No. 4 m GC No. 3402 The
stormwater management plan must include plans and specifications for stormwater

tlb /L7 /Ltltl4 ll:lb '31119541345 THE LPA GROUP: PAGE 03
kWifax- Northamaptoo Regional Airport Authority / DWQ No o4.0639
Pago 3 of 4
June 18.2004
management facilities that are appropriate for surface waters classified as Class C and
designed to remove 85% TSS according to the most recent version of the NC DENR
Storinwater Best Management Practices Manual. These facilities must be designed to treat
the runoff from the entire project, unless otherwise explicitly approved by the Division of
WaW Quality. Also, before any permanent building is occupied at the subject site, the
facilities (as approved by this Office) shall be constructed and operational, and the
storinwater management plan (as approved by this Office) shall be implemented The
structural stormwater practices as approved by this Office as well as drainage patterns must
be maintained in perpetmty. No changes to the structural stormwater practices shall be made
without written authorization from the Division of Water Quality.
Please note that the plan must include the use of either extended detention wetlands, bio-
retention areas or ponds followed by forested filter stripe (designed according to the latest
version of the NC DEEM Stormwater Best Management Practices Manual).
4. IFToslon & Sedlisiene Control Pracdces - Erosion and sediment control practices must be in
fall compliance with all specifications governing the proper design, installation and operation
and maintenance of such Best Management Practices in order to protect surface waters
standards: k
a. The erosion and sediment control measures fo�the project must be designed,
installed, operated, and maintained in accordance with the most recent version of the
North Carolina Sediment and Erosion Control P'loini rig and Resign Manual.
b. The design, installation, operation, and maintenance of the sediment and erosion
control measures must be such that they equal, or exceed, the requirements specified
in the most recent version of the North Carolina Sediment and Erosion Control
Manual. 'lire devices shall be maintained on all constriction sites, borrow sites, and
waste pile (spoil) projects, including contractor -owned or leased borrow pits
associated with the projecL
c. For borrow pit antes, the erosion and sediment control measures- must be designed,
installed, operated, and maintained in accordance with the most recent version of the
North Carolina Surface Mining Manual
d. The reclamation measurer, and implementation must comply with the reclamation in
accordance with the requirements of the Sedimentation Pollution Control Act.
5. NO Waste, Strom, Sofads, or Fill of Amy Kind - No waste, spoil, solids, ter fill bf any Idnd
shall occur in wetlands, waters, or riparian areas beyond the footprint of the impacts
depicted in the Pre - Construction Notification. All construction activities, including the
design, installation, operation, and maintenance of sediment and erosion control Best
Management Practices, shall be performed so that no violations of state water quality
standards, statutes, or rules occur.
6. No Se&went & H"SiOn COnai'ol Measures w/n Wedands or Waters - Sediment and
erosion control measures shall not be placed in wetlands or waters to the maximum extent
practicable. If placement of sediment and erosion control devices in wetlands and waters
is unavoidable, they shall be removed and the natural grade restored within six months of
the date that the Division of Land Resources has released the project. Any erosion and

-1 "t'Vv Ate. 40 7177041,340 IHt LFA LWJUP: PAGE 04
Halifax- Northampton Regional Airport Authority / DWQ No. 040639
Page 4 of 4
June 19, 2004
sediment control devices placed within wetlands or waters must comply with N.C. Water
Quality Certification regulations (15A NCAC 0211.0500).
7. Certificate of Completion - Upon completion of all work approved within the 401
Water Quality Certification or applicable Buffer Rules, and any subsequent
modifications, the applicant is required to return the attached certificate of completion to
the 401/Wetlands Unit, North Carolina Division of Water Quality, 1650 Mail Service
Center, Raleigh, NC, 27699 -1650.
Violations of any condition herein set forth may result in revocation of this Certification and may
result in criminal and/or civil penalties. The authorization to proceed with your proposed
impacts or to conduct impacts to waters as depicted in your application and as authorized by this
Certification, shall expire upon expiration of the 404 or CAMA Permit.
If you do not accept any of the conditions of this Certification (associated with the approved
wetland or stream impacts), you may ask for an adjudicatory hearing You must act within 60
days of the date that you receive this letter. To ask for a hearing, send a written petition, which
conforms to Chapter 15013 of the North Carolina General Statutes to the Office of Administrative
Hearings, 6714 Mail Service Centex, Raleigh, N.C. 27699-6714. This certification and its
conditions are final and binding unless you ask for a hearihe
``
Any disputes over determinations regarding riots Authorizateon Certificate (associated with the
approved buffer impacts) shall be referred in writing to the Director for a decision. The
Director's decision is subject to review as provided in Articles 3 and 4 of G.S. 15013.
This letter completes the review of the Division of Water Quality under Section 401 of the Clean
Water Act and the Tar-Pamlico riparian buffer protection rule as described within 15A NCAC
213.0259. If you have any questions, please telephone John Dorney at 919- 733 -9646 or Bob
Zarzecki at 919- 733 -9726.
Sincerely,
Alan W. Klimek, P.E.
Enclosures: OC 3402
Certificate of Completion
cc: Terry Bumpus, The LPA Group of NC, 4904 Professional Court, Suite 201, Raleigh, NC 27069
USACH Raleigh Regulatory Field Office
DWQ Raleigh Regional Office
DI.R Raleigh Regional Office
File Copy
Central Piles
Filename: 040639

APPENDIX B
PROJECT CORRESPONDENCE

A Al,
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H Sullins
Governor Director
January 4, 2010
Mr Rick Benton
Halifax- Northampton Regional Airport Authority
P O Box 38
Roanoke Rapids, NC 27870 -2809
Re Halifax- Northampton Regional Airport
Year 5 Mitigation Monitoring Report
Halifax County
DWQ 404 -0639
Dee Freeman
Secretary
The Division of Water Quality (DWQ) 401 Oversight and Express Review Permitting Unit has reviewed
the Monitoring Report for the above - referenced site Our comments on the report are as follows
• The vegetation monitoring for the wetland restoration area appears to meet the success criteria of
an average of 260 stems per acre after five years
The tree density in the buffer restoration area is 275 trees per acre While the report states that
"The vegetative success criteria set forth in the mitigation plan have been met for both sites
(wetland and buffer) for the fifth year (as the plan prescribed) ", the 401 Water Quality
Certification and Tar - Pamlico Buffer Authorization, issued on June 18, 2004, states that the
required tree density is 320 stems per acre (15A NCAC 02B 0260(9)(d)(11) In addition, a letter
dated July 24, 2004 from Terry G Bumpus (LPA Group of North Carolina) to John Dorney
(DWQ) states that "trees will be monitored to ensure that a minimum of 320 trees per acre will be
alive in the buffer areas at the end of five years"
If this buffer restoration site is to serve as compensatory mitigation to offset impacts approved in your
Buffer Authorization, the success criteria must be met Your options are to do supplemental planting to
sufficiently meet the 320 stems per acre requirement and monitoring the site for an additional two (2)
years, or to abandon the site and purchase buffer mitigation credits from either an approved private buffer
mitigation bank or the N C Ecosystem Enhancement Program
Failure to provide adequate compensatory mitigation for authorized buffer impacts would represent a
violation of the Tar - Pamlico Riparian Buffer Rules
Within 30 days of your receipt of this letter, please submit a written response describing your plan for
complying with the success criteria for the buffer mitigation site, and a schedule for completing the
replanting work
In addition, the wetland mitigation portion of the project will not be considered by DWQ to be closed out
until a copy of the recorded conservation easement is provided
Please feel free to contact Eric Kulz at (919) 807 -6301 if you have any questions regarding this project or
our comments
401 OversighUExpress Review Permitting Unit
1650 Mad Service Center, Raleigh, North Carolina 27699 -1650 One
Phone [phone]FAX [phone] NorthCarolina
Internet http I/portal ncdenr org /web /wq /ws
An Equal Opportunity 1 Affirmative Action Employer aturallY

Mr Benton, Halifax- Northampton Regional Airport
Year 5 Mitigation Monitoring Report
Page 2 of 2
January 4, 2011
Smcergly, I
Ian McMillan, Acting Supervisor
401 Oversight and Express Review Program
cc File Copy (Eric Kulz)
Lauren Witherspoon — DWQ Raleigh Regional Office
Cyndi Karoly — DWQ Wetlands and Stormwater Branch
James Lastinger — USACE, Raleigh Regulatory Field Office
Edward J Smail — LPA Group Incorporated, 700 Huger Street, P O Box 5805, Columbia, SC 29250
Filename 040639HalifaxNorthamptonRegionalAuport( Ilahfax )5YearMrtigationMomtonngReport

HALIFAX - NORTHAMPTON
REGIONAL AIRPORT A UTHORI T Y
Post Office Box 38
Halifax, North Carolina 2 783 9
(252) 583 -3492 — Terminal
252) 583 -1131 — Administration
January 31, 2011
Mr Ian McMillan
NCDENR
1650 Mail Service Center
Raleigh, NC 27699 -1650
Subject Halifax - Northampton Regional Airport
Dear Mr McMillan,
We are in receipt of your January 4, 2011 letter regarding tree plantings in the mitigation areas
for the Halifax — Northampton Regional Airport. It is our intent to supplement the mitigation
areas with additional plantings in order to increase the number of trees to an acceptable level At
the present time we are in the process of advertising a significant construction project at the
airport and intend to include the supplemental plantings as part of the project. Timing of the
project is such that the seedlings will be planted as early as possible in this fall's planting season
Monitoring will be maintained for the additional two years
If you have any questions do not hesitate to call
Sincerely,
Dia H Denton, Administrator
Halifax- Northampton Regional Airport Authority
Cc David B King, Chairman
Halifax- Northampton Regional Airport Authority

APPENDIX C
SITE PHOTOGRAPHS

Halifax- Northampton Regional Airport
Stream Buffer Replanting — Site Photographs
Photograph 1: Looking South at Replanted Area (October 9, 2012)
Photograph 2: Looking South at Replanted Area (Notice Existing Trees) (October 9, 2012)
12/17/2012

Photograph 3: Looking South at Replanted Area (Notice New Trees Spaced Between Existing Trees)
(October 9, 2012)
Photograph 4: Looking South at Replanted Area (Notice New Trees Spaced Between Existing Trees)
(October 9, 2012)
12/17/2012