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Division of Water Quality
Winston-Salem Regional Office
25 F130M-NCDENF-U15B0 336-'~71-4630 T-~51 F1~~1~'I~[~,~ F-5q©
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan VV. Klimek, P.E. Director
Division of Water Quality
Address: 585 Waughtown Street, Winston-Salem, NC 27107
PHONE: [phone]
FAX: (336} 771.-4630
J/'JI! i~
FAX'['O: Tammy Hill FAX NUMBER: 919-733-6893
DATE: 10/ 15/2007
FROM: Sue Nomewoacl
NO.OF PAGES INCLUDING THIS SHF,ET: 2
Tammy,
I have no history with the piedmont triad airport and its mitigation sites. Cyndi probably has more knowledge than I. Can
you give me any comments on their proposal? I also have not discussed this with John Thomas at all, he did not notify
me of their request or site visit, this is the first I've heard of it.
Thanks,
Sue
Ps: this is ir1 color and they only sent one copy. I can send to you to review the color and you can send back when you
are done, or we could contact Baker for another copy.
N. C. Division of Water Quality. 1617 Mail Service Center Raleigh, NC 27699-1617 [phone]
OCT-15-28D7 MON 11:18 TEL: [phone] NAME:DWQ-WETLANDS
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Customer Servi<:e
1 800 623.7748
P. 1

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OCT-15-2~D7 MON 11:19 TEL:[phone] NAME:DWQ-WETLAhJDS

• 10-15-' 87 10 ; 25 F130C1-NCDENH-4~51~0 336-771-463 T-251 P~~t3/~L~3 F-5'?~
`_""'~ ~ ~~ ~ Baker and Associates
m 7800 Airport Center Drive, Suite 100
~(~' ~ ~~ ~~~~ j Greensboro, NC 27409
Wi„5tUn•Sa,en,
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FAX [phone]
October 4, 2007
U.S. Army Corps of Engineers, Wilmington District
Raleigh Regulatory Field Office
6508 Falls of the Neese Road, Suite 120
Raleigh, NC 2761 S
Attention. Mr. John Thomas
Subject: Vegetation Management Plan for Conservation :Easement Tracts A and B in
New Runway 23R Runway Safety Area at .Piedmont Triad International Airport
Action ID 200421655; Water Quality Certification No. 3428
On behalf of the Piedmont Triad Airport Authority (PTAA), Baker and Associates (BAKER), is
pleased to submit this plan to remove natural growth in order to comply with Federal Aviation
Regulations (FAR) governing airspace obstruction (FAR Part 77) at the approximately 11.83-acre
(= 7.28 acres wetland + 4.55 acres upland) Conservation Easement (CE) Tracts A and t3 area
within the Runway Protection Zone (RPZ) of new Runway 23R (see Figure 1, following) at
Piedmont Triad International Airport (PTIA). This plan documents the methodology proposed to
remove mature trees in accordance with our discussion in the field on July l2, 2007.
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OCT-15-2007 MON 11:19 TEL:[phone] NAME:DWQ-WETLANDS P. 3

• 1~-15-'©? 1:25 FROM-NCDENF~-wSBO 336-??1-4630 T-251 F~~41~~8 F-5G~
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Mr. Jahn Thomas
October 4, 2007
Page 2 of 6
Regulatory Requirements
Special Condition "nn" of the Corps Individual Section 404 Permit specifies:
"1'RUHIB171sD AC77G'177L'.S:• the pernrittee arrd subsequent property owners shall
n)Crr/ttlllrl the nTlhf,>ation property at the 1'iednionl 'T'riad International Airport property
described irr the Wetland acrd Stream MitiKativn Plan dated December 28, 2001, (ortsite
mitigation praperly) in its ttatttral corxlitiott, except as authorized by this permit, in
perpetuity. Prohibited activities within the ansite mitigation property specifically include,
but are not limited to: the construction or placentertt of rnaals, ti~rlkways, htrildinKs, silnts,
or structures of arty kind (i. e., billboards, interior fences, etc.), fillin~~ gi adirtl,~ exurvation,
leveling; or arty other earth ntvving activity or activity tha! Wray alter the drainage patterns
on the property; the cutting, mowing, destruction, removal, or other damage of arty
vegetation, except as specifically stated in the ntitigatiort plait or arry approved
ntodifrcations• thereto; disposal or storage of arty debris; trash, garbage, or other waste
r11alerrCrl; except as Wray be authorized by the mltigatiort plans, or srrbsc'quettt ntUdifications
that are aFpraved by the Carps of Trtgineers. Tn addition, the perntittee, and current attd
subsequent property of+nters, shall take no action at the P7IA, whether on ar off the
mitigatiart pYOpertlc's', which will adversely impact the s7reams at the mitigation properties,
except as specifically authorized by this permit, or strhsegtrent nxrdi~catiorrs that are
approved by the Corps of Ertl>irteens."
Article II Section C of the Corps-approved Conservation Declaration applicable to the on-site
preservation areas states:
"'T'he Authority reserves unto itself, its successors and assigns, the right to take such action
or perform such wa~rk orr the Property as may he necessary to comply with regtelatiotts or
directives of the Federal Aviation Admirtislrativrt, inchrdinK without Iintitatiorr the right to
renrvve objects of natural growth and other obstructions orr any par of the Property that
exceed the heights approved, front time to time by the I ederal Aviation Administration, and
the right to eliminate arty other conditions orr the Property that would interfere with or be a
hazard to the, flight of aircraft to and from the Piedmont T riad International Airpvrt or the
navifiatiorr and comntunication•tacilities .serving .arid Airport or that would otherwise
constitute crrt airport hazard "
Section D of the Conservation Declaration states:
"The Authority reserves rrttto itself, its srrceessors and assigns, the right to construct artd
nraitttairt upon 1 racts A arrd 13 art T;xhibit A such condirits, above or below the Bratrnc~ • for
the [rartsnrtssiort rf electrrcal polder aitd COntntrrrliCallOrl,signals and .such lighlirtg and
navigational equipntertt as Wray he necessary in order to comply with rules and regtrlativns
v~ f the Federal Aviation Administration yr otherwise for the opercrtiort of said airport and to
grant to the Federal Aviation Administratiart, its successors rntd assigns, or such other
governnu'rttal agency with. jtrrisdictian over airport operations, licenses yr rights-o, f-way
for the constrrrctrvn artd ntairttenartce c f the same. "
~~~~•
OCT-15-2007 MON 11:20 TEL:[phone] NAME:DWQ-WETLANDS P. 4

10-15-'~7 10:26 FF30M-NCDENI~-w51~0 336-771-463D T-251 F0~5/~~~~ F-5a~

Mr. Sohn Thomas
October 4, 2007
Page 3 of b
FAR Part 77.25 specifies a trapezoidal RPZ with dimensions set by the type of aircraft and
approach visibility minimum. According to Federal Aviation Administration (FAA) Advisory
Circular (AC) Number 150/5300-13, the RPZ required at PTIA is 1000 feet wide at the end of
Runway 23R, expanding to approximately 1750 feet wide at a distance of 2500 feet from the end
of the runway (see Figure 1).
From the center of the RPZ, imaginary surfaces extend laterally upward at a rate of 7: l to an
elevation 150 feet above the proposed runway. No obstructions are permitted to penetrate this
RPZ transitional surface. Similarly, the critical approach imaginary surface begins 200 feet from
the end of the runway and extends at a 50:1 slope to the end of the RPZ. The approach surface
restricts the height of natural vegetation to ground surface [855.6 feet Above Mean Sea Level
(AMSL) at 200 feet from the end of Runway 23R to approximately 905 feet AMSL at 2500 feet
out along the runway axis. The location of the CE (within approximately 1700 to 2400 feet from
the end of the new Runway), with ground elevations ranging from 838 to 871 feet AMSL, means
that natural growth exceeding about 40 feet above ground level in the uplands and about 80 feet in
the wetlands must be removed (Figure 2).
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The existing canopy in the CE will therefore require complete removal of all mature trees due to
their estimated height exceeding 100 feet above ground surface. If tall vegetation is only partially
removed or trimmed, repeated incursion into the CE would be required for on-going maintenance.
Vegetation with potential to obstruct the proposed Medium-intensity Approach Lighting System
with Runway alignment indicator lights {MALSR, to be installed between the two conservation
tracts, see Figure 3, following) will be removed and this area will be maintained as permanent
access (unpaved) between the two conservation tract areas.
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OCT-15-2007 MON 11:2D TEL:[phone] NAME:DWQ-WETLANDS P. 5

• 1~-15-' 8 r 10:26 FF~OM-NCDENF~-U1SF~0
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Mr. John Thomas
October 4, 2007
Page 4 of 6

No heavy
equipment in
stream channels
or soft ground
336-7?1-463® T-251 P~c66/Ides F-59C~

OCT-15-2007 MON 11:21 TEL: [phone] NAME:DWQ-WETLANDS P. 6

1~-15-' D r 1t~ ; ZF F130M-NCDENI3-45130
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Mr, John Thomas
October 4, 2007
Page 5 of 6
Methods
336-771-463 T-251 P~~©7J~08 F-5~~
As stated in the PTAA clarification request to the Corps of April 16, 2007, " .P7:4A proposes to
r~.se mechanized e~lrripnrent with lo-v graimd pressure tires to fell and renroi~e large f7atural growth
within the Conservation H:asc~ntent in this area. I'7AA will inform ec~iripnrent operators of the
impurtaf~ce of mijiinrizing disir~rbcuace to existijtg~~vrrnd sarrface in the Consservatioa F,ase»tc~rtt
c~nd will restrict vegetation renrava! to the nrininu~m regnired to comply with FAR Part ?? " In
order to accomplish the goal of complete removal of all mature trees with minimal disturbance to
the CE, PTAA will complete the following tasks
Tree Identification
Trees and other vegetation exceeding the minimum height threshold required by FAR Part 77
will be identified with colored plastic surveyor's tape.
ScnsiUve-Ground. Dc~iine~tion
Temporary orange plastic fencing will be erected around areas of soft, deep, or otherwise sensitive
ground where no equipment will be permitted.
Corps Field Review
The Corps will be notified when the above-described tree and ground identification measures are
in place in order to schedule regulatory field review of these tasks. PTAA will designate
appropriate personnel to meet with the Corps at the designated time and place to conduct the field
review.
Operator Brie#int;
Equipment operators will be briefed by appropriately experienced personnel on the location of
sensitive areas and the importance of minimizing impacts to the CE. This will include no access to
identified soft ground areas, provision for immediate removal of equipment if impacts to ground
surface become excessive, and removal of identified mature trees only.
Tree Removal
The appropriately briefed contractor will remove identified vegetation only from the CE with as
little impact as practicable to remaining vegetation and ground surface.
Temporary Fence Removal
Once the mature trees have been removed from the CE and equipment has departed the site the
temporary fencing will be removed.
Site Stabilization
Bare or rutted areas resulting from equipment activity and/or tree removal will be stabilized with
an appropriate native upland or wetland seed mix as required by the North Carolina Department of
Environment and Natural Resources (NCDENR) Division of Land Resources (DLR) Land Quality
Section.
OCT-15-2087 MON 11:23 TEL:[phone] NAME:DWQ-WETLANDS P. 7

10-15-'~7 1:29 FF30M-NCDENB-45130 336-7?1-463 T-351 P~~31~~3 F-59~C
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Mr. John Thomas
October ~, 200?
Page 6 of 6
Schedule
It is anticipated that the tree and sensitive-ground identification measures will be in place for Corps
field review in early February 2048. Contingent on Corps approval of this plan and the field
identification, the trees are proposed to be removed by early March 2008 as follows:
Task ~~~~ Days _ Start ~ Finish /3 2110 2/17 2/24
Tree Identification 5 2/4108 2!8/08 ~
Sensitive-Ground Delineation 5 214/08 2/8/08 ~
Corps Field Review 1 2/11/08 2/11/08 ^?
Operator Briefing 1 2/11/08 2/11/08 ^
Tree Removal 10 2/11/08 2/22/08 ~ ' ~
Temporary Fence Removal 1 2/25/08 2/25108 ^
Site Stabilization 5 2!25108 2/29/08 ~
Please contact me at your convenience with any questions or comments regarding this plan and to
confirm potential Corps field review date(s).
Sincerely,
Richard Darling, C.E.
Environmental Manager
RBD/JCA/LJA.rbd
cc: Mickie Elmore, PTAA
Daryl Lamb, DWQ-WSRO
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OCT-15-2007 MON 11:23 TEL:[phone] NAME:DWQ-WETLANDS P. 8

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