20010630 Ver 1_COMPLETE FILE_20010425

w
O? Vd A Michael F. Easley
?OR\ QG Governor
Vj r William G. Ross Jr., Secretary
Department of Environment and Natural Resources
p Kerr T. Stevens
Division of Water Quality
Division of Water Quality
July 6, 2001
CERTIFIED MAIL: 7099 3400 0006 9313 6390
Return Receipt Requested,
Mr. Mark Harrill
Echota, LLC.
151 Mr. Bish Blvd.
Boone, NC 28607
SUBJECT: APPROVAL of 401 Water Quality Certification with Additional Conditions
Echota, LLC Development
DWQ Project # 01 0630
Watauga County
Dear Mr. Harrill:
You have our approval, in accordance with the attached conditions (WQC #3287 and
#3289) and the conditions listed below, to conduct the following at the Echota, LLC
Development in Watauga County:
Place fill in 0.07 acres of wetlands and 403 linear feet of unnamed tributaries of the
Watauga River, Class B Tr HQW Waters, Watauga River Basin for the purpose of seven
road crossings and two berms and two weirs associated with open water and wetland
creation. Activity must be conducted as indicated on the Echota, LLC Site Plan, Phase I
Erosion Control Plan, and Drainage and Erosion Control Plan, from McGill Associates,
all signed June 27, 2001, as well as the Road/Dam Crossing (June 10, 2001) and Weir
Detail (June 11, 2001) Sheets from McGill Associates.
2. To impound 1312 linear feet of an unnamed tributary to the Watauga River for the
purpose of open water and wetland creation, as indicated in the Echota, LLC Site Plan,
Phase I Erosion Control Plan, and Drainage and Erosion Control Plan from McGill
Associates, all signed June 27, 2001.
This approval is only for the impacts listed above and for the activities that you described
in your application received by the Division of Water Quality on April 25, 2001 and in additional
correspondence received on June 29, 2001. We have determined that General Water Quality
Certification Numbers 3287 and 3289 cover this fill activity. These Certifications allow you to
use Nationwide Permit Numbers 39 and 14 when issued by the US Army Corps of Engineers.
Please keep in mind that there may be additional Federal, State and Local regulations applicable
to your project, such as the Sedimentation and Pollution Control Act, Non-Discharge and Water
taw
NCDENR
Customer Service
1 800 858-0368
Division of Water Quality / Water Quality Section
585 Waughtown Street Winston-Salem, NC 27107
Phone: [phone] Fax: [phone] Internet: http://wq.ehnr.state.nc.us
ti
Echota, LLC
Page 2
Supply Watershed Regulations, whereby you may be required to obtain permits and/or approvals
prior to beginning your project. In addition, this approval will expire when the accompanying
404 Permits expire unless otherwise specified in the General Certification.
This approval is only valid for the purposes and designs that you described in your
application and subsequent correspondence dated June 26, 2001. If you change your project, you
must notify the Division in writing and you may be required to submit a new application for a
new Certification. If the property is sold, the new owner must be given a copy of the
Certifications and approval letter and is thereby responsible for complying with all conditions. If
total wetland fill for this project (now or in the future) exceed one acre, compensatory mitigation
may be required as described in 15A NCAC 2H .0506(h). For this approval to be valid, you
must follow the conditions listed in the attached Certifications and the additional conditions
listed below:
1. Deed notifications or similar mechanisms shall be placed on all lots with remaining
jurisdictional wetlands and waters or areas within 50 feet of all streams and ponds. These
mechanisms shall be put in place within 30 days of the date of this letter of the issuance
of the 404 Permit, whichever is later. A sample deed notification can be downloaded
from the 401/Wetlands Unit web site at httn://h20.enr.state.nc.us/ncwctlands.
2. A copy of the NC Division of Land Resources Trout Buffer Waiver letter must be
submitted to this Division prior to construction.
For road crossing numbers 3, 7, 11, and 15 you must submit, to the Division, detailed
cross-sections, plan views, and profiles 30 days prior to construction. If the impacts due
to these crossings exceed the amount authorized by this Certification, you may be
required to re-apply to the Division for a new Certification and/or be subject to
compensatory stream mitigation.
4. As-built plans and the attached Certificate of Completion (COC) must be submitted to the
Division upon final construction of the road crossings, ponds, and wetlands.
If you do not accept any of the conditions of this Certification, you may ask for an
adjudicatory hearing. You must act within 60 days from the date of receipt of this letter. To
request a hearing, send a written petition that conforms to Chapter 150B of the North Carolina
General Statutes to the Office of Administrative Hearings, PO Box 27447, Raleigh, NC 27611-
7447. This Certification and its conditions are final and binding unless you request a hearing.
A
Echota, LLC
Page 3
This letter completes the review of DWQ Project #010630 by the Division of Water
Quality under Section 401 of the Clean Water Act. If you have any questions, please contact
Mrs. Jennifer Frye at 336-771-4600, ext. 275 or Mrs. Cyndi Karoly at 919-733-9721.
Sincerely,
Kerr T. Stevens
Director, Division of Water Quality
Attachments: GC #3287 (6/1/00), GC # 3289 (6/1/00), COC
cc: Tamp Bandy, WNRC, Inc. 720 S. Main Ave., Newton, NC 28658
Patrick Warren, McGill Associates, PO Box 1136, Hickory, NC 28603
Steve Chapin, USACE, Asheville Regulatory Field Office
Randy Woodrow, Watauga County Planning and Inspections, 842 W. King St., Suite 7, Boone, NC 28607
401/Wetlands Unit, Central Office
Central Files
WSRO
LETTER OF TRANSMITTAL
0&__ McGill
ASSOCIATES
222 Union Square, Suite 306
Post Office Box 1136
Hickory, North Carolina 28601
TELEPHONE: [phone]
DATE: 06/28/01
Ly
j Ju 9 20x,1
FAX: [phone]
FROM: Patrick Warren, P.E.
TO: Jennifer Frye PROJECT Echota
COMPANY: NC DENR - Division of Water Quality
ADDRESS: 585 Waughtown Street Winston-Salem, NC 27107
We are sending you:_x Attached
VIA _FED EX the following items:
Shop Drawings
Specifications
_x Prints
Copy of Letter
Under separate cover
Other
Change Order
NUMBER DESCRIPTION
1 original & 1 copy of response letter
2 sets of plans
COMMENTS: Please review and let us know any comments. Thank you.
E n g i n e e r i n g • P l a n n i n g . F i n a n c e
McGill Associates, P.A.. P.O. Box 1136, Hickory, NC 28603 •222 Union Square, Suite 306, Hickory, NC 28601 .828-328-2024 • FAX [phone]
McGill
A S S O C I A T E S
June 26, 2001
Mr. John Dorney
Division of Water Quality
NC DENR
2321 Crabtree Blvd.
Raleigh, NC 27604-2260
Re: Response to June 1, 2001 Request for Additional Information Letter
Echota Residential Development (+/- 118 acres)
Action ID: 200130505
DWQ Project# 010630
Foscoe, Watauga County, North Carolina
Dear Mr. Dorney:

In response to the request for additional information for the referenced project, I
respectfully submit the following information:
Item 1 & 2. See attached letter from Wetlands and Natural Resource
Consultants, Inc.
Item 3. Cross-sections, plan views, and road profiles for the road crossings
1, 2, 4, 5, 9, 10, and 12 are attached. Downstream stabilization
design drawings and calculations will be submitted to Land
Quality for erosion control approval. The remaining road
crossings will be submitted to your office 30 days prior to
construction. These locations have not been surveyed at this time,
but an estimated impact is noted on the impact data table.
Item 4. A schematic of pond No. 1 and 2 is enclosed. A portion of the
existing stream at Pond No. I will remain on-line around the fore
bay and extended wetland. The planting, operation, and
maintenance will be in accordance with the DWQ Best
Management Practice Manual. A copy of these is attached.
Item 5. Private driveways will be constructed to serve these lots. See
enclosed plan.
E n g i n e e r i n g 0 P l a n n i n g F i n a n c e
.1h?Cill Associates, P.A. - P.O. 6o.c 1136, Hickory, NC 28603 - 222 Union Square, Suire .106. Hickory, NC 28601
828-328-2024 - FAX [phone]Vo
Item 6. The trout buffer can be encroached into with a variance from the
Land Quality Section. This variance will be requested after the
erosion control permits for each phase have been obtained.
Additionally, I have eliminated or relocated two (2) of the proposed road
crossings (No. 6 & 8) See enclosed plan.
It is my professional opinion that this project exemplifies what can be
done in the North Carolina mountains without destroying the natural beauty or
habitat, while enabling the project to be economically feasible. The project will
have or has:
A. Maximum of 12% impervious area.
B. Two (2) extended wetland detention ponds.
C. Two (2) ponds with cold water drawdown.
D. Minimum stream impact with arch and span pipes at road crossings.
E. Self contained drainage basin.
F. Creek crossings at existing roadbeds.
Thank you for your attention to this matter. Please call if you have any
questions or comments.
Sincerely,
atric Warren, P.E.
McGill Associates, P.A.
xc: Mark Harrill
Chris Huysman
Tamp Bandy
Jennifer Frye
r '
wetland and
Naturril RolaOurce
Consultants, Inc.
N.C. Division of Water (ap;ity
Attn: Mr. John Donut'
2321 Crabtree Boulevard
Rakigh, North Carolina 276042260
Re: Response torup;1, 2001 Request for Additional Information Letter
Echota Residential Development (+/-118 acres)
Action ID: 200130505
DWQPi0JecX'# 0' 10630
t Foscoe, Wst*&u County, North Carolina
Deu Mr. Dorney"
The purpose pf.thsp latter Is to address particular concerns and to give additlacial information on
requested impaycte'.'Qproposed Echota Development at the request of Ms. Jennifer Frye. We are
in receipt of the I)ivFe ns letter dated June 1, 2001 and present the following responses in the same
order as,they were prpiehted.
i 1} The swears purehgreti; the property with the Intention. of consrructing'a residential housing
development, Tb4it desire' is to create a community that is naturai and environmentally pleasing.
Historically, thc. pruponeru proposed twQ likes. at the location of the proposed v+etlsinda and additional
impact6 stem"frocn a more corApkrx road infrastructure. The ponds were proposed to, enhance
this "n.Aglral" QfFect The ow.nrr recognlzed the complexity and envirorunental sensitivity with respect
j to this development requested consultation,£rom. Weiland and Natural Resource Consultants, Inc.
eitrly in.the`de'4pment process. When. the project was first ewluated with respect to environmental
impacts, it proposed our additional road crossings, greater impervious area, and ?.S to 3 acres of
surface water 1 8, All forms of environmental impacts have been reduced in scope to accommodate
environmental issues. The construction of these. amenities requires that the 401 WU be iq:ued for
acce68 to the devel4plnem site acid for.:the installation of the surface water ponds. Additionally, the
local sediment a erosion control permits are conditional upon receipt of the WQC,
2) The owne; desires to access high ground to achieve his intended goal. The application requests
rmpacts shit would ta,artrially be approved to access development areas. Project infrast
eing's) of 1 Facture' (all road
cra .. ,
y tltWz;ed plpe as opposed. to sparm Once the developer realized that nearly
I .insurmountabletnl,WaUYv requir'ernents would, 4kely be required by the NCDW%he priced Arch
spans for a .ory arpos m order to avoid the. necessity of notifying for piping impacts. After a cost
proforms was prepare by the project enginetr, it eras detormined that a combination of piping sired
Newton oft
Waynesville 0f6ce
1 l South College Ave Suite 203 82 Poplar Street
PO Box 224 PO Box 553
Newton, NC 28658 Hazelwood, NC 28738
828 -466 - 3035
828.465+3050 Fax [phone]
828 X454.5033 Fax
rrt?AnCC?ol.com wninc&clacom
- fi??4o53b5b N. r,3
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sparer is the most economically feasible alternative that fully co
DWQguid mplied with written law and internal been
anee. The number of channel crossings and the amount of channel imp zeta has minimized to the maximum extent possible due to encumbrances related to site topography arid
channel locations..
(. Impacts for the road crossings and the proposed
ponds and wetland detention basins are minimized I
and compensated for the following reasons;
i.
1' Language within the Federal Register states that project redesign is itself a form of
minimization and mitigation, i
2. The !nfi^astructure utilizes existing roam crossings and prMouel am
structures...' Y Patted areas for new
1 Creation of additional surface waters in
creases aquatic habitat.
4. The removal of potential pollutants (sediment and nutrients) from waters entering the
Watauga Ri?r 4.i6leved through the use of created wetlands.
S, Therrr<al ainpa?et concerns of the WRC are addressed b
i P°? to allayfor a deeper cool water discharge from the pow tmn at the lower portion of the
3) With respect to coak'.
em with the proposed spanned road crossings, it it pass wwerntuwing that
actlvities that occw " TF the mean high water level are not re
cons uead she gulawd under the. 4 4 process and
e9 Y. _ 4% Celt ,fir.?a,rion process. However, we are sensitive to the stability issues that have
been identified in 0iuse lot letter. In order to address this concern, fabric can be placed on the
sides of the charusel held in place with rip-rap once the vegetation has been removed, the banks
have been laid back to
2:1
4 gradient, and the arch spans have been inatalled.
4) Although the.ponds are ,not required under the state 401.Wattr Quality Certification or other local
regulation,, the da7vtp]op washes to install the surfatce water features as an aesthetics and
` envrronmental ?+ieiqty fot'the development. There were no objwions to the proposed itutallation of
the upper
F pond fro '
Frig expteseed fi 44st} i reprepeneativea of IVCWRC or NC)JWQ during the site inee?tinga. Ms.
parpcular concerns with respect to the installation of the lower surface water pond as
relaia3d to the coramen tv. f saes submitted .by Mr. Linville with the NCWRC. The applicant has
explored the poWiibtltty Cfrtlpcating the channel for the purpose of constructing an offline pond.
Ile relocataocs has beta dstnined to be not feasible for the following reasons:
1. The charaati 4,deal'
ar>d DW t ign will result in trout bu$ars required by sediment and erosions control rules
oft taut ;•elocation./ mitigation. guidelines that will result in a minimum belt-width
fie?t• o:helt-width.would be offset from the adjaxint properties and greatly reduce the
desa,red snrfact:',%n' W errs and the desired storm water detention.
2. The intent to:crea. it Cully functional environmental amenity will be compromised when
L_
bypalaltrg tl>Q p04
3. Prelrrntnasry 41nrlil relocation designs are encumbered with ies n to ro line issues,
chanter! bead elev?tlocu, anticipated flood elevations, and channel banks ability sspes.
Off--line ponds ' , ; . .
flp mot provide doodwattr storage functions and can lead to a losing channel system in
the mountain c?uttis, "I!h?s¢ y° factors alone lead to the concluaion that off-line systems are not
8°$ to achieve the deuced effect of improving the quality of water exiting the site to the Watauga
. Adtnitt4y; there are changes In the aquatic habitat when channels are flooded-
l°vwtver, the
impounded wptet hie the. ability to increase water quality functions associated with Eloodwatet
detention and sOlids'removid and increase the total amount of aquatic habitat,
_ .., ,,.?. Ld2U4k, 5 .r1°_,0
The environmentg amenities impacts are assessed to be minimal for the following reaspns:
1. Existing wooded buffers will remain adjacent to the surface waters.
2. A large section of the existing channel to be flooded, although assessed to be perennial, ranks
relatively low on the DW(Zchannel evaluation form with respect to channel morphology and
aquatic habitat and already lacks riparian canopy shading,
3. The existing absence of trout or trout migration through the site was confirmed by the WRC
It is our understanding that minimization and mitigation requirements have been achieved for the
project through project size reduction, strategic road crossing placement, the creation of additional
wetlands and waters, and the detention and treatment of stormwater flows. We look forward to
hearing from you. Please feel free to salt with questions or for additional information.
Best Regards,
Tamp Bandy
F 014

1 . bJ
ECHOTA,BOONE
WATAUGA COUNTY, NORTH CAROLINA
WNRC, Inc, Project M FR-1001
IMPACT DATA TABLE
NATIONWIDE 39 L'VfPAC TS
bU?C S
Original. Revised Mitigative
Road Crossing 1Benn;

R
eolles
Action
3R0 R0
Minimized Impact
oad Crossing 2/Ben-n:
Enviroturiental Amenity 1 50 LF
82 LF Utilize Headwalls
(Berms and Weirs)
(Flooding) 22 LF 22 LF Stortrnwater Wetlands

(Wetland Impacts)
Environmental Amenity 2 est. 512 LF est. 512 LF Surface Water Aquatic Habitat
est 0.05 Ac est, 0.05 Ac Est, 0.5 Acre Vegetated. Wetland Creation
(Berms and Weirs)
(Flooding) 24 LF 24 LF Stonnwater Wetlands

(Wetland Impacts) est. 800 LF est. 800 LF Surface Water Aquatic Habitat
eat 0.02 Ac est. 0.02 Ac Est. 0.4 Acre Vegetated. Wetland Creation
Total Fill Impacts: Channel 126 LF 178 LF
Wetland 0.07 Ac 0.07 Ac
NATIONWIl?I i.b IMPACTS
Original„ Revised Mitigative
B$lu Bequest 'on
Road Crossing 3; 65 LF NTE 55 LF Utilize Approx 12 LF of existing logging road bed,
headwalls, below grade culvert placement to allow
for non-existing passage of aquatic life
Road Crossing 4: 65 LF 35 LF Utilize Approx 12 LF of existing logging road bed,
headwalls, below grade culvert placemcnt to allow
for non-existing passage of aquatic life
Road Crossing 5: 65 LF 30 LF Utilize Approx 12 LF of existing logging road bed,
headwalls, below grade culvert placemeitt to allow
non-existing passage of aquatic fife
for Road Crossing 6; Relocated / Removed from site plan
Road Crossing 7: 0 LF (span) 0 LF (span) Utilize Arch Span
Road Crossing 8: Relocated / Removed from site plan
Road Crossing 9: 0 LF (span) 0 LF (span) Utilize Arch Span
Road Crossing 10: 0 LF (span) 0 LF (span) Utilize Arch Span
Road Crossing 11; 65 LF NTE 50 LF Utlize Head Walls, below grade culvert placement
to allow for non•cxisting passage of aquatic lifo
Road Crossing 12: 65 LF 55 LF Utilize Approx 12 LF of existing logging road bed,
headwalls, below grade culvert placement to allow
for non-existing passage of aquatic life
Total Channel: 325 LF 225 LF
mbined Channel Width Requested 10 Feet Under NW 14)
tJor? : R?tJo, 3 ? j?
w e (, c. S S L W l (,- 1,A„ I Z
w 1-r-f{. R PG 1U o . t{ I t3
G m V GT-t o?
R.D.C. Nt,. 7
? ? S i a-i f c./ a. IrZ, by <
T% U
Echota
Wetland Design
Pond 4 1
Drainage Area = 120 ac,
Soil Group B
Runoff Curve Number:
A. Roads, Houses 14.4 ac.
B. Open Area 105.0 ac.
Design Storm= 1"
Runoff From Design Storm / CN
A. S=(1000/95)-10=0.53
R/O = (1" - 0.2 (0.53))2 + 0.8 (0.53))
R/O = 0.56 in.
B. S = (1000/60) - 10 = 6.7
R/O=(1"-0.2(6.7))2/(1"+0.8(6.7))
R/O = 0.018 in.
Treatment Volume:
A. 0.56 in, x 14.4 ac. = 8.1 ac-in
B. 0.018 in. x 105.6 ac. = 1.90 ac-in
Total Volume = 9.9 ac-in
= 35,937 cu-ft
Area = 35.937 cu-ft = 23,958 ft.2
1.5 ft. depth
Dimensions : 175'x 140'x 1.5'
Weir Drawdown
Q=CwLH3/2
Q = 0.6 (0.5 ft.) (0.75 ft.)l.s
= 0.2 cfs.
Time= 35.937 cu. ft. second J hr
0.2 cu. ft. 3600 sec.
= 51.2 hr. = 2.1 days
Fore Bay
25% of Wetland Volume Req'd
0.25 x 35,937 cu. ft. = 8,984 cu-ft.
Pond # 2
Drainage Area = 90 ac.
Soil Group B
Runoff Curve Number:
A. Roads, Houses 10.8 ac.
C. Open Area 79.2 ac.
Design Storm= 1"
Rtmoff From Design Storm / CN•
C. S=(1000/95)-10=0.53
R/O = (1" - 0.2 (0.53))2 / (1" + 0.8 (0.53))
R/O = 0.56 in.
D. S = (1000/60) - 10 = 6.7
R/O = (1" - 0.2 (6.7))'/ (1" + 0.8 (6.7))
R/O = 0.018 in.
Treatment Volume:
C. 0.56 in. x 10.8 ac. = 6.0 ac-in
D. 0.018 in. x 79.2 ac. = 1.40 ac-in
Total Volume = 7.4 ac-in
= 28,862 cu-ft
Area = 28,862 cu-ft = 17,908 ft.2
1.5 ft. depth
Dimensions : 170'x 105'x 1.5'
Weir Drawdown
Q=CwLH3/2
Q = 0.6 (0.5 ft.) (0.75 ft.)1.5
= 0.2 cfs.
Time== 26,862 cu. ft. ( second hr
0.2 cu. ft. 3600 sec.
= 51.2 hr. = 2.1 days
Fore Bay
25% of Wetland Volume Req'd
0.25 x 26,862 cu. ft. = 6,716 cu-ft.
Echota
Creek Crossings Pipe Analysis
Drainage Round
Crossing Area, ac Q25, cfs. Pipein.
RC3 8.6 21.6 30
RC 4 6.2 15.6 30
RC 5 13.6 29.4 36
RC 6 12.8 27.7 36
RC 7 11.5 25.3 36
RC 8 10.2 22.8 30
RC 9 13.3 28.7 36
RC 10 12.0 25.9 36
RC 11 9.7 22.3 30
RC 12 19.2 41.5 36
Cost Analysis
A. Round Pipe w/o burying bottom
36" -> $50.00 / ft. installed
TYP Crossing @ 50 ft. --+ $2,500.00
- B. Arch Pipe w/ buried bottom
64" x 43" --+ $75.00/ ft. installed
TYP Crossing @ 50 ft. --> $3,750.00
C. Span w/ footing
36" --> $150.00 / ft. installed
TYP Crossing @ 50 ft. --+ $7,500.00
D. Engineering & Surveying
$2,500.00 + /Crossing
Arch Half Pipe
Pipe, in. Span, in.
57 x 38 36
57 x 38 36
64 x 43 36
64 x 43 36
64 x 43 36
57 x 38 36
64 x 43 36
64 x 43 36
57 x 38 36
64 x 43 48
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Engineering o Planning • Finance
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ENGINEERING • PLANNIN'G• FINANCE DESCRIPTION: W?%??- brGTp?lL
Engineering • Planning • Finance
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55 Broad Street, Asheville, NC 28801 • 828-252-0575 • Foa 328-252-2518 DATE: SHEET NO. OF
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1.5 Operation and Maintenance
A study of Maryland basins found that, in general, people had more favorable impressions of wet detention
basins, were less likely to throw litter in them, and were more likely to clean and perform routine maintenance on
these basins when they were provided a prominent position in the development (Maryland DNR, 1986). No two
basins are the same, but every basin will require maintenance at some point, and their maintenance needs will
vary with the size, type of watershed, location, etc. Designation of a responsible party and routine maintenance
are vital to the proper operation of the wet detention basin (Schueler, 1987, pp. 4.13-4.17; Maryland DNR, 1986).
Adequate funding is one of the most important factors in a successful operation and maintenance program
(Maryland DNR, 1986).
Estimated annual operation and maintenance (O&M) costs for wet detention basins of 5% of construction costs
were found in a survey conducted by the State of Maryland on their wet detention basins (Maryland DNR, 1986,
pg. 37). In addition the NURP study in Washington, D.C. estimated O&M costs to be 5% of construction costs
(Metropolitan Washington COG, 1983, Chapter 3).. .
The maintenance needs of any particular wet pond are highly dependent on the condition of the watershed that
contributes runoff to the pond. Maintenance should always include minimizing erosion problems and pollutant
export to the pond from the contributing watershed. A permanent easement must be provided to assure easy
access for maintenance: Care should be taken to secure all appropriate legal agreements for the easement. A
benchmark for sediment removal should be established to assure adequate storage for water quality and flood
control functions.
Again, one must remember that while general maintenance tasks are identified here, actual needs will vary from
site to site. In general, plans must indicate what operation and maintenance actions are needed, what criteria will
be used to determine when these actions are necessary, and who is responsible for these actions. Examples of
items that should be included in an operation and maintenance plan include, but are not limited to the following:
• Debris and litter control checks for inlet, outlet and orifice obstruction after every storm producing runoff.
• Provisions for routine vegetation management/mowing and a schedule for these activities.
• Checks every 6 months, or more frequently, for:
- sediment buildup and the need for removal,
erosion along the bank and the need for reseeding or stabilization and, if reseeding is
necessary, a reseeding schedule,
- erosion at the inlet and outlet and methods of stabilization,
- seepage through the dam, and
- operation of any valves or mechanical components.
• Agreement signed and notarized by the responsible party to perform the tasks specified in the plan,
including inspections, operation, and any needed maintenance activities.
1,6 Inspections
Annual or more frequent inspections by the land owner or pond operator are strongly encouraged to ensure the
proper operation of a wet detention pond. Local governments can require more frequent inspections, and all
local codes should be consulted.
At a minimum an inspection should include and address the following
• obstructions of the inlet and outlet devices by trash and debris,
• excessive erosion or sedimentation in or around the basin,
• cracking or settling of the dam,
• deterioration of inlet or outlet pipes,
• condition of the emergency spillway,
• stability of side-slopes,
• up and downstream channel conditions, and
0 woody vegetation in or on the dam
?AYP,?-7LA.IJP S
2.8 Maintenance
Pocket wetlands that have no sediment pretreatment will tend to accumulate sediment very rapidly and therefore
will need cleanout when they accumulate six inches of deposition; which in most cases will take 5 to 10 years.
An on-site sediment disposal area should be seriously considered for any pocket wetland, and should be sized to
receive three cleanout cycles.
Due to their small size, pocket wetlands can be mucked out with a portable mudcat or backhoe. The top few
inches of sediment should be stockpiled, so that is can be replaced over the surface of the wetland after the
completion of sediment removal to reestablish through its own seedbank.
Maintenance Requirements are as follows:
Pocket Wetlands will tend to collect debris, and it should be removed whenever it accumulates, or at least
twice annually.
Wetlands should be inspected annually after a rain event to ensure that the basin is operating as designed.
At a minimum, items that should be included in the inspection and corrected are:
- clogging of the outlet or too.rapid a release,
- erosion on the banks,
erosion at the inlet and outlet,
- sediment accumulation and the need for removal,
- condition of the emergency spillway, and
- woody vegetation in the embankment.
Table 2.2 Wetland Plants
Scur+tocName.
Commo
N Commercial Inundation Wildlife Value Notes
n
ance Form Avaflabilit Tolerance
Pellandra virginia Emergent yes up to I ft. High, Berries are Full sun to partial shade
Arrow arum eaten b wood ducks
Saggitana larilolia Emergent yes up to 1 ft. Moderate. Tubers and Aggressive colonizer
Arrowhead/ Duck potato seeds eaten b ducks
Andropogon virginicus
Broomsedge Peritrteter yes up to 3 in. High. Songbirds and Tolerant of fluctuating water
browsers. Winter food levels & partial shade
and cover
Andropogon glomeratus Emergent yes up to 1 ft. Requires full Sun
Bush Beard ass
TYpha spp.
Cattail Emergent yes up to. l ft. Low. Except as cover Aggressive. May eliminate
other species. Volunteer.

Ceratophyllum DWQersum
Submergent
yes
yes
Low food value. Good Hi pollutant acatmcnt.
Free floating SAV. Shade
Coontail habitat and shelter for tolerant. Rapid growth.
fish and invertebrates
Scirpus pungens Emergcnt yes up to 6 in. High. Seeds, cover. Fast colonizer. Can tolerate
Common Three-Square Waterfowl, songbirds periods of dryness. Full
sun. High metal removal

Lemna spp•
Submergent/
yes
yes
High, Food for .
High metal removal
Duckweed Emergent waterfowl, and fish
Saururus cernuus
' Emergent yes up to 1 ft. Low, except for wood Rapid growth. Shade
Lizard
s Tail ducks tolerant.
Hibiscus moschewos Emergent yes, up to 3 in- Low. Nectar. Full sun. Can tolerate
Marsh Hibiscus periodic dryness
Ponlederia cordata Emergent yes up to i fL Moderate. Ducks. Full sun to partial shade
Picktaelwccd Nectar for butterflies.
Potamogewn peciinams Submergent yes yes Extremely high. Removes heavy metals.
Pond Weed Waterfowl, marsh and
shorebirds.
Leersia oryzoides Emergent yes up to 3 in. High, Fwd and cover. Full sun although tolerant of
Rice cut grass shade. Provides some
shoreline stabilization
Carex spp. Emergent yes up to 3 in. High, Waterfowl and Many wetland and several
Sedges songbirds, u landspecies.
Scirpus vahdus Emergent yes up to 1 ft. Moderate. Good cover Full sum. Aggressive weedy
Soft-stem Bulrush and food. aliens such as P. rfoliatum
Polygoanum spp. Emergent yes up to 1 ft. High. Waterfowl, Fast colonizer. Tolerant of
Smartweed songbirds. Seeds and fluctuating water levcts.
cover.
Juncus ejjesus Emergent yes up to 1 ft. Moderate. Tolerates wet or dry
Soft Rush conditions.
Nuphar lureum Emergent yes up to 3 ft. Moderate for food but Fast colonizer. Tolerant of
S atterdock hi for cover. fluctuating water levels.
Panicum vergatum Perimeter yes up to 3 in. High. Seeds, cover for Tolerates wet and dry
Switchgrass waterfowl and conditions.
songbirds.
Acorus calamus Perimeter yes up to 3 in. Low. Tolerant of dry periods. Not
Sweet Flag a rapid colonizer. Tolerates
acidic conditions
Elodea canadensis Submergent yes yes Low. Good water oxygenator.
W aterwxd
High nutrient, copper,
manganese and chromium
removal.
Valisneria americana Submergent yes yes High. Food for Tolerant of murky water and
Wild Celery waterfowl. Habitat for high nutrient loads.
fish and invertebrates.
Zizania aquan.ca Emergent yes up to l ft. High. Food for hlyds. Prefers full sun.
Wild Rice
Table from' to wafer W ti guidelines for creating diverse iv stormwater wetlands e d-Allan is
Re ion Schueler

Division of Water Quality
July 6, 2001
CERTIFIED MAIL: 7099 3400 0006 9313 6390
Return Receipt Requested
Mr. Mark Harrill
Echota, LLC.
151 Mr. Bish Blvd.
Boone, NC 28607
SUBJECT: APPROVAL of 401 Water Quality Certification with Additional Conditions
Echota, LLC Development
DWQ Project # 01 0630
Watauga County
Dear Mr. Harrill:
You have our approval, in accordance with the attached conditions (WQC #3287 and
#3289) and the conditions listed below, to conduct the following at the Echota, LLC
Development in Watauga County:
Place fill in 0.07 acres of wetlands and 403 linear feet of unnamed tributaries of the
Watauga River, Class B Tr HQW Waters, Watauga River Basin for the purpose of seven
road crossings and two berms and two weirs associated with open water and wetland
creation. Activity must be conducted as indicated on the Echota, LLC Site Plan, Phase I
Erosion Control Plan, and Drainage and Erosion Control Plan, from McGill Associates,
all signed June 27, 2001, as well as the Road/Dam Crossing (June10, 2001) and Weir
Detail (June 11, 2001) Sheets from McGill Associates.
2. To impound 1312 linear feet of an unnamed tributary to the Watauga River for the
purpose of open water and wetland creation, as indicated in the Echota, LLC Site Plan,
Phase 1 Erosion Control Plan, and Drainage and Erosion Control Plan from McGill
Associates, all signed June 27, 2001.
This approval is only for the impacts listed above and for the activities that you described
in your application received by the Division of Water Quality on April 25, 2001 and in additional
correspondence received on June 29, 2001. We have determined that General Water Quality
Certification Numbers 3287 and 3289 cover this fill activity. These Certifications allow you to
use Nationwide Permit Numbers 39 and 14 when issued by the US Army Corps of Engineers.
Please keep in mind that there may be additional Federal, State and Local regulations applicable
to your project, such as the Sedimentation and Pollution Control Act, Non-Discharge and Water
r
Echota, LLC
Page 2
Supply Watershed Regulations, whereby you may be required to obtain permits and/or approvals
prior to beginning your project. In addition, this approval will expire when the accompanying
404 Permits expire unless otherwise specified in the General Certification.
This approval is only valid for the purposes and designs that you described in your
application and subsequent correspondence dated June 26, 2001. If you change your project, you
must notify the Division in writing and you may be required to submit a new application for a
new Certification. If the property is sold, the new owner must be given a copy of the
Certifications and approval letter and is thereby responsible for complying with all conditions. If
total wetland fill for this project (now or in the future) exceed one acre, compensatory mitigation
may be required as described in 15A NCAC 2H.0506(h). For this approval to be valid, you
must follow the conditions listed in the attached Certifications and the additional conditions
listed below:
Deed notifications or similar mechanisms shall be placed on all lots with remaining
jurisdictional wetlands and waters or areas within 50 feet of all streams and ponds. These
mechanisms shall be put in place within 30 days of the date of this letter of the issuance
of the 404 Permit, whichever is later. A sample deed notification can be downloaded
from the 401/Wetlands Unit web site at htta://h20.ent-.state.nc.us/ncwetlands.
2. A copy of the NC Division of Land Resources Trout Buffer Waiver letter must be
submitted to this Division prior to construction.
3. For road crossing numbers 3, 7, 11, and 15 you must submit, to the Division, detailed
cross-sections, plan views, and profiles 30 days prior to construction. If the impacts due
to these crossings exceed the amount authorized by this Certification, you may be
required to re-apply to the Division for a new Certification and/or be subject to
compensatory stream mitigation.
4. As-built plans and the attached Certificate of Completion (COC) must be submitted to the
Division upon final construction of the road crossings, ponds, and wetlands.
If you do not accept any of the conditions of this Certification, you may ask for an
adjudicatory hearing. You must act within 60 days from the date of receipt of this letter. To
request a hearing, send a written petition that conforms to Chapter 150B of the North Carolina
General Statutes to the Office of Administrative Hearings, PO Box 27447, Raleigh, NC 27611-
7447. This Certification and its conditions are final and binding unless you request a hearing.
Echota, LLC
Page 3
This letter completes the review of DWQ Project #010630 by the Division of Water
Quality under Section 401 of the Clean Water Act. If you have any questions, please contact
Mrs. Jennifer Frye at 336-771-4600, ext. 275 or Mrs. Cyndi Karoly at 919-733-9721.
Sincerely,
Kerr T. Stevens
Director, Division of Water Quality
Attachments: GC #3287 (6/1/00), GC # 3289 (6/1/00), COC
cc: Tamp Bandy, WNRC, Inc. 720 S. Main Ave., Newton, NC 28658
Patrick Warren, McGill Associates, PO Box 1136, Hickory, NC 28603
Steve Chapin, USACE, Asheville Regulatory Field Office
Randy Woodrow, Watauga County Planning and Inspections, 842 W. King St., Suite 7, Boone, NC 28607
401/Wetlands Unit, Central Office
Central Files
W SRO
MEMORANDUM
TO: John Dorney Regional Contact: Jennifer Frye
Non-Discharge Branch WO Supervisor: I arry Cable
Date:
SUBJECT: WETLAND STAFF REPORT AND RECOMMENDATIONS
Facility Name Echota Development County Watauga
Project Number 01 0630 County2
Recvd From APP Region Winston-Salem
Received Date 4/25/01 Recvd By Region 5/10/2001
Project Type residential subdivision
Certificates Stream Stream Impacts (ft.)
Permit Wetland Wetland Wetland Stream Class Acres Feet
Type Type Impact Score Index Prim. Supp. Basin Req. Req. ME
14 OTH OO Y 01`1 18-(1) I TRHQW F4-0,2-01- o07 1,715.00 1,715.0
Mitigation Wetland
MitigationType Type Acres Feet

Is Wetland Rating Sheet Attached? O Y ON Did you request more info? Q Y ON
Have Project Changes/Conditions Been Discussed With Applicant? Q Y O N
Is Mitigation required? O Y * N Recommendation: OQ Issue O Issue/Coed O Deny
Provided by Region: Latitude (ddmmss) 360959 Longitude (ddmmss) 814556
Comments:
WSRO issued 401 WO Certifications #3287 and #3289 on July 6. 2001,
cc: Regional Office
Central Office Page Number 1

DIVISION OF WATER QUALITY
June 1, 2001
WK-
CERTIFIED MAIL: 7099 3400 0006 9313 6864
RETURN RECEIPT REQUESTED //V
Mr. Mark Harrill
Echota, LLC
151 Br. Bish Blvd. CjS S?? C
Boone, NC 28607
SUBJECT: REQUEST FOR ADDITIONAL INFORMATION
Echota, LLC Development
DWQ Project # 01 0630
Watauga County
Dear Mr. Harrill:
The Division of Water Quality has reviewed your plans for the discharge of fill material
and impoundment of unnamed tributaries to the Watauga River, Class B Tr HQW waters,
Watauga River Basin, for the purpose of pond and wetland construction and residential
development. Insufficient evidence is present in our files to conclude that your project must be
built as planned in waters and/or wetlands in accordance with 15A NCAC 2H.0506. Therefore,
unless modifications of the proposal are made as described below, we will have to move toward
denial of your 401 Certification as required by 15A NCAC 2H .0507(e) and will place this
project on hold as incomplete until we receive this additional information. We are requesting (by
copy of this letter) that the U. S. Army Corps of Engineers place your project on administrative
hold.
(1) Please provide us with information supporting your position that states your
project must be constructed as planned and that you have no practicable
alternative to placing fill in these waters and/or wetlands. Documentation such as
maps, narratives, economic analyses, that you can supply to address alternative
designs for your project may be helpful in our review of your 401 Certification
request.
(2) Please provide documentation detailing your position that the project has been
designed such that adverse impacts to surface waters have been minimized and
existing uses have been protected to the best of your ability.
Echota, LLC
Page 2
(3) Additional information regarding the road crossings is also necessary for our
review. Please submit detailed plans for each crossing, including designs for the
arch span crossings. The details (both plan view and profile) must include culvert
size and length, headwalls, endwalls, and rip-rap and the linear footage of stream
impact associated with each. In addition, please provide this office with evidence
that the design and placement of the culverts and associated structures will be
conducted in such a manner that they will not result in a dis-equilibrium of the
stream bed and banks, adjacent to and upstream and downstream of the crossings.
For each proposed crossing, also include the following information: (1) clearly
depict the width and span of each crossing, (2) indicate the location of top of bank
of the stream with respect to the actual crossing span, (3) discuss width of the
floodplain and (4) clearly detail why the removal of stream side vegetation
coupled with increased energy focused through this crossing will not cause
destabilization of the stream banks and cause sedimentation to the channels.
(4) Please submit plans and details of the proposed ponds, wetlands, and forebays.
Specify the linear footage of stream impact associated with impoundment, dam
fill, culverts, and wetland. Please include a detailed planting plan for the
proposed wetlands and pond/forebay vegetative buffers. In addition, investigate
the viability of constructing pond #1 off-line and relocating the tributary using
natural channel design. Also provide documentation regarding future operation
and maintenance of the ponds, wetlands, and forebays.
(5) It appears that access to several lots will require additional stream crossings.
Please show how each lot will be accessed and include any additional road
crossings with your proposed impacts.
(6) Lastly, your plan shows the development roads and associated fill slopes
encroaching on the 25' trout buffer at several locations. Please address this issue.
Please respond, in writing, both to this Office and to John Dorney, 2321 Crabtree
Blvd., Raleigh, NC 27604-2260 within three weeks of receipt of this letter outlining your
intent to proceed with this project or withdraw your application. If you wish to proceed,
please address the items listed above.

Echota, LLC
Page 3
If you have any questions regarding this matter, please contact Mrs. Jennifer Frye or me
at [phone].
Sincerely,
Larry D. Coble
WQ Regional Supervisor
cc: Tamp Bandy and Chris Huysman, WNRC, Inc. 720 S. Main Ave., Newton, NC 28658
Patrick Warren, McGill Associates, PO Box 1136, Hickory, NC 28603
Randy Woodrow, Watauga County Planning and Inspections, 842 W. King St., Suite 7, Boone, NC 28607
Steve Chapin, Asheville Field Office, US Army Corps of Engineers
Wilmington Office, US Army Corps of Engineers
Wetlands/401 Unit Central Office
Central Files
WSRO
MEMORANDUM
TO: Steve Chapin, Permit Coordinator
Asheville Office, U. S. Army Corps of Engineers
FROM: Ron Linville, Regional Coordinator
Habitat Conservation Program
DATE: May 18, 2001
SUBJECT: Review of an Application for Echota Residential Development, Unnamed
Tributaries to Watauga River, Foscoe, Watauga County
The applicant `s consultant, Wetland and Natural Resource Consultants, Inc., is
requesting a letter of concurrence from the North Carolina Wildlife Resources
Commission (NCWRC) to obtain 404 permits from the U.S. Army Corps of Engineers
for road crossings and pond impacts associated with the development. The NCWRC has
reviewed information provided by the applicant, and field biologists on our staff are
familiar with habitat values of the project area. These comments are provided in
accordance with provisions of the Clean Water Act of 1977 (33 U.S.C. 466 et. seq.) and
the Fish and Wildlife Coordination Act (48 Stat. 401, as amended; 16 U.S.C. 661-667d).
Kin Hodges, Kevin Hining and I conducted a site visit on May 14, 2001. At that
time, we discussed several options and considerations with the owner and his consultants.
We expressed concerns about the proposed shallow (6' deep) pond proposed for the
lower elevation of the property. Thermal concerns and aquatic life or fish passage issues
were discussed relative to this pond and culvert replacement. We also discussed the
upper dam proposed for the site.
Based on our site visit, we recommend that the applicant consider digging an off
line pond without a dam for the lower pond. This could require minor stream relocation
using bioengineering methods and riparian plantings. In conjunction with this stream
channel, we encourage the applicant to restore aquatic life passage to the extent
practicable when the entrance culvert is installed or replaced. This may be accomplished
by installing the pipes approximately one foot into the streambed.
Echota Development 2 05/21/01
The upper pond and dam site proposed appears to be an acceptable structure
providing that a bottom (cool) water release is provided. We concur with the 30-foot
natural tree buffers proposed for the streams within the development. These buffers
should remain naturally vegetated and protected through deed restrictions or other legal
mechanisms. All stream crossings should be installed in a manner that ensures aquatic
life passage to the extent possible. Concrete work should be accomplished so that wet
concrete does not contact stream or wetland waters.
Although, we believe the off line pond is better for the environment and aquatic
life in the area, we will not object to the project provided that any ponds constructed have
bottom releases to minimize thermal impacts to the extent practicable. Any ponds should
utilize littoral shelves planted with native riparian species that provide shade and pond
edge habitats. Instream work and land disturbance within the 25-foot wide buffer zone
should be prohibited during the rainbow trout spawning season of January 1 through
April 15 to protect the egg and fry stages of t
May 18, 2001
Mr. Larry Brooks
1292 Piney Creek Road
Lansing, North Carolina 28643
RE: Proposed Floyd Richardson Bridge Replacement, Driveway Crossing, Lansing, Ashe County
Dear Mr. Brooks:
This correspondence is in response to your request for our field review of the proposed driveway
crossing for a private home and stream piping between Mr. Floyd Richardson's property and the American
Legion ball field property in Lansing. The purpose of the project is to replace a wooden bridge and to
provide yard improvements for the homeowner. The North Carolina Wildlife Resources Commission
(NCWRC) is authorized to comment and make recommendations which relate to the impacts of this project
on fish and wildlife through the Federal License of Water Resource Project Act (Federal Power Act-16
U.S.C. 791a et seq.), and the Fish and Wildlife Coordination Act (48 Stat. 401, as amended; 16 U.S.C. 661-
667d).
Kin Hodges, Kevin Hining and I visited the site with you on May 14, 2001. Based on our review,
we have no objection to the proposed installation of a 20'long pipe (96" diameter) to be installed below
streambed grade to replace the existing bridge. This installation should occur during periods of low flow
within the stream. A 404 Permit from the US Army Corps of Engineers will be needed.
We cannot support the proposed piping of the remaining stream (beautification effort) requested
because of construction of a new building by the American Legion. In fact, we are concerned about the
recent work accomplished along the streambank. We recommend that the streambank be revegetated with
native tree and shrub species after it is stabilized with annual rye or a similar annual plant. This riparian
revegetation should provide streambank stability as well as a visual buffer.
Please be advised that all activities must follow 404 permit conditions and any other special
conditions specified by the NC Department of Environment and Natural Resources. If you have any
questions regarding these comments, please contact me at 336/769-9453.
Sincerely
Ron Linville
Regional Coordinator
Habitat Conservation Program
cc: Steve Chapin, US Army Corps of Engineers
Re: WSRO Tracking Notice, 5/23/01
Subject: Re: WSRO Tracking Notice, 5/23/01
Date: Tue, 22 May 2001 13:41:23 -0400
From: Jennifer Frye <[e-mail]>
Organization: NC DENR Water Quality
To: Cyndi Karoly <[e-mail]>
CC: [e-mail],[e-mail]
This is one of Huysman's masterpieces .... needless to say, I am currently
writing the request for more info. - The PCN is lacking (on purpose, my
guess) SO much - perhaps we are just supposed to trust his judgement? I
plan to do a site visit next week, also. I will send you an e-mail when I
finish the letter.
Thanks,
Jen
Cyndi Karoly wrote:
> Hi Jennifer.
> Below is this week's 401 Tracking Notice for the Winston Regional
> Office. The Central Office has not received your recommendations for
> this project as of May 23, 2001. If you have not received any
> application, please let me know and I will fax it to you. Please take
> note of the date received in the Central Office and the 60-day clock
> projection. If we do not have your comments by two weeks before the
> clock expires, we may have to prepare the 401 without incorporating your
> comments, in order to avoid waiving the 401. Two weeks from today, the
> application will be forwarded to the appropriate Central Office staff
> member (me) if we do not have Regional Office comments by then. The CO
> staff will then consult you if time allows and make a recommendation on
> the 401 to John Dorney.
> TRACKING:
> DWQ No. Project County Permit Type Received Expires
> 01-0630 Echota Development, Watauga Co., NW14139, 4125101 6123101
> Please use the staff recommendation sheet in Filemaker Pro, and then
> notify me that the report has been filed. My e-mail address is
> [e-mail] or you can call me at 919-733-9721.
> There are no tardy projects in your region.
> Thanks very much for your attention.
Jennifer Serafin Frye
Division of Water Quality
NC Department of Environment and Natural Resources
Winston-Salem Regional Office
Winston-Salem, NC 27107
Voice: 336-771-4608 ext. 275 Fax: [phone]
I of 1 5/22/01 1:47 PM
Proiects reviewed with comments:
010712 - (Madison Co., DOT) the affected waterway, Paint Fork, is WS-II. Road crossings are
allowed assuming no practical altematives, and bua must be minimized, stormwater must be
diverted away from surface waters, and DOT must use/follow their BMPs document
010691 - (Mitchell Co., DOT) no WSWP impacts, but Roaring Branch is C Tr.
010678 - (Durham Co., Triangle WWTP) the project is within WS-IV Haw River (Jordan Lake).
Kick it to Durham Planning Dept. for enforcement of BUA requirements. Crossings ok, assuming
no practical altematives, and bua must be minimized, stormwater diverted, BMPs for water quality
used.
010666 - (Clay Co., DOT) the project is not is WS waters, but it's in Tr.
010637 - (Granville Co., John Braddy) the project is within WS-II NSW. Kick it to Butner Planning
Dept. for enforcement of BUA requirements. Crossings ok for public projects, assuming no
practical alternatives, and bua must be minimized, stormwater diverted, BMPs for water quality
used. Since it's a private project, then road pavement must be included in the total bua and
crossings not ok without a variance.
010630 - (Watauga Co., Wetland and Natural Resource Consultants, Inc.) not is WS waters, but its
within TR HQW.
010628 - (Stanly Co., Gerald Goodman) The project is within the Lake Tillery WS-IV-CA. Kick to
local planning department (Norwood?) for review of bua and buffer compliance. The state
minimum for WS-IV projects is that the WSWP rules don't apply to projects not needing a SEC
plan, but local gov't can be more protective. If SEC plan is needed, must comply with bua/buffer
requirements.
010626 (S&EC Consultants, Inc., Iredell Co.) - the site is most likely in the WS-IV-CA of Lake
Norman. No new roads in CA to the extent practicable; if allowed must minimize bua, divert
stormwater, use BMPs. Private roads must be included in the bua calculations. The state
minimum for WS-IV projects is that the WSWP rules don't apply to projects not needing a SEC
plan, but local gov't can be more protective. If SEC plan is needed, must comply with bua/buffer
requirements.
Proiects reviewed with NO comments/not is WS waters:
010726 - Martin Marietta Materials, Inc., Wake Co.
010730 - Donal Humphrey, Onslow Co.
010728 - Levie Carson Bunch, Currituck Co.
010725 - Tommy Moore, Jones Co.
010724 - Rowland Carlson, Chowan Co.
010737 - KBB Developers, Union Co.
010683 - DOT, Guilford Co.
010672 - Land Management Group, Inc., Brunswick Co.
010671- City of Lenoir, Caldwell Co.
010668 - DOT, Tyrell Co.
010654 - Ingles Markets, Inc., Buncombe Co.
010648 - Casey Jones, Guilford Co.
Wetland and
Natµral Res e
Cons' u' IWO, Ino;
April 3, 2001
U.S. Army Corps of Engineers
Asheville Regulatory Field Office
Attn: Mr. Steve Chapin
151 Patton Avenue, Room 208
Asheville, North Carolina 28801-5006
Re: Echota Residential Development (+J- 118 acres)
Action ID: 200130505
Foscoe, Watauga County, North Carolina
Dear Mr. Chapin and Mr. Domey:
N.C. Division of Water Quality
Attn: Mr. John Dorney
401 Wetlands Unit
1650 Mail Service Center
Raleigh, North Carolina 27699-1650
o i. 6
The purpose of this letter is to request authorization for proposed impacts to Jurisdictional Waters of
the U.S. on the Echota Development site in Watauga County, North Carolina. A copy of your
jurisdictional determination approval is attached. The wetlands have been surveyed and are shown
on the attached maps.
impacts will occur
development.
Mitigation, Minimization and Avoidance
All remainina road crossinasofiurisdict
Approximately 325 linear feet of hard
under Nationwide Permit 14 to access the
creation of approximately 3 acres of environmentaTamenity wetlands and surface waters are offered
as mitigation for impacts. These areas will serve secon ary unction r wa er qua . Additionally,
thirty foot vegetated buffers (estimated 6 acres) will be left adjacent to both sides of all remaining
channels on the project site as a mitigative action.
We look forward to hearing from you. Please feel free to call with questions or for additional
information.
Best Regards,
Tamp Bandy
Jennifer Robertson

828."312,-9207 Chris 720 South Main Ave,
828312,"9205 Jennifer Newton, NC 28658
828,312"9206 Tamp 828-465-3050 Fax
The project requests flooding and fill impacts to approximately 1828 linear feet of jurisdictional
channels and an estimated 0.07 acres of vegetated wetland for the proposed installation of two
separate environmental amenity areas and road crossings. Approximately 126 linear feet of hard
impacts will occur for the construction of dams, berms, and weirs under Nationwide Permit 39. Thg
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Name: VALLE CRUCIS Location: 036° 09' 59.3" N 081 ° 45' 55.6" W
Date: 2/12/101 Caption: Proposed Planned Unit Dev.
Scale: 1 inch equals 2000 feet Echota, LLC
WNR, Inc. Job # FRA001
Copyright (C) 1987, Wptech, Inc.
DWQ ID: _ CORPS ACTION ID: _
NATIONWIDE PERMIT REQUESTED (PROVIDE NATIONWIDE PERMIT #): 14 and 39
PRE-CONSTRUCTION NOTIFICATION APPLICATION
FOR NATIONWIDE PERMITS THAT REQUIRE:
1. NOTIFICATION TO THE CORPS OF ENGINEERS
2. APPLICATION FOR SECTION 401 CERTIFICATION
3. COORDINATION WITH THE NC DIVISION OF COASTAL MANAGEMENT
SEND THE ORIGINAL AND (1) COPY OF THIS COMPLETED FORM TO THE APPROPRIATE FIELD
OFFICE OF THE CORPS OF ENGINEERS (SEE AGENCY ADDRESSES SHEET). SEVEN (7)
COPIES MUST BE SENT TO THE NC DIVISION OF WATER QUALITY,
ATTN: JOHN DORNEY, 4401 REEDY CREEK ROAD, RALEIGH, NC
27607. PLEASE PRINT OR TYPE.
1. OWNER'S NAME: ECHOTA, LLC Mr. Mark Harrill
2. MAILING ADDRESS: 151 Mr. Bish Blvd. Boone, NC 28607
SUBDIVISION NAME Echota
CITY: Boone STATE: NC ZIP CODE: 28607
PROJECT LOCATION ADDRESS, INCLUDING SUBDIVISION NAME (IF DIFFERENT FROM
MAILING ADDRESS ABOVE):
3. TELEPHONE NUMBER: (HOME) (WORK) 1-828-963-7600
4. IF APPLICABLE: AGENT'S NAME OR RESPONSIBLE CORPORATE OFFICIAL, ADDRESS,
PHONE NUMBER:
Wetland and Natural Resource Consultants, Inc PO Boa 224 Newton, NC 28658 1-828-465-3035 (phone)
1-828-465-3050 (fax) [e-mail]
5. LOCATION OF WORK (PROVIDE A MAP, PREFERABLY A COPY OF USGS TOPOGRAPHIC MAP
OR AERIAL PHOTOGRAPHY WITH SCALE):
COUNTY: Watauga - NEAREST TOWN: Boone
SPECIFIC LOCATION (INCLUDE ROAD NUMBERS, LANDMARKS, ECT.) 8742 Hwy 105 in
Foscoe, Site adjacent to Foscoe Realty, see attached USGS TopoQuad
6. IMPACTED OR NEAREST STREAMIRIVER: unnamed tributaries to Watauga River RIVER
BASIN: Watauga
7. (a) IS PROJECT LOCATED NEAR WATER CLASSIFIED AS TROUT, TIDAL SALTWATER, (SA),
HIGH QUALITY WATERS (HQW), OUTSTANDING RESOURCE WATERS (ORW), WATER
SUPPLY (WS-I OR WS-In? YES ? NO ? IF YES, EXPLAIN: - YES (Trout Waters of Watauga
Riv r
(b) IS THE PROJECT LOCATED WITHIN A NORTH CAROLINA DIVISION OF COASTAL
MANAGEMENT AREA OF ENVIRONMENTAL CONCERN (AEC)? YES ? NO [ENO
(c) IF THE PROJECT IS LOCATED WITHIN A COASTAL COUNTY (SEE PAGE 7 FOR LIST OF
COASTAL COUNTIES), WHAT IS THE LAND USE PLAN (LUP) DESIGNATION? NO
8. (a) HAVE ANY SECTION 404 PERMITS BEEN PREVIOUSLY REQUESTED FOR USE ON THIS
PROJECT? YES ? NO ? NO (JD Tear Sheet only. Action ID: 200130505). IF YES, PROVIDE
ACTION I.D. NUMBER OF PREVIOUS PERMIT AND ANY ADDITIONAL INFORMATION
INCLUDE PHOTOCOPY OF 401 CERTIFICATION):
(b) ARE ADDITIONAL PERMIT REQUESTS EXPECTED FOR THIS PROPERTY IN THE FUTURE?
YES ? NO ® NO IF YES, DESCRIBE ANTICIPATED WORK:
9. (a) ESTIMATED TOTAL NUMBERS OF ACRES IN TRACT OF LAND: 118
(b) ESTIMATED TOTAL NUMBER OF ACRES OF WETLANDS LOCATED ON PROJECT SITE:
0.5 acres
10. (a) NUMBER OF ACRES OF WETLANDS IMPACTED BY THE PROPOSED PROJECT BY:
FILLING: _ 451' (0.04 acres-channels) no wetlands EXCAVATION:
FLOODING: - 1312' (0.09 acres-channels) 0.07 wetlands OTHER : _
DRAINAGE : - TOTAL ACRES TO BE IMPACTED: 0.2 acres (channels and wetlands)
(b) (1) STREAM CHANNEL TO BE IMPACTED BY THE PROPOSED PROJECT (IF RELOCATED,
PROVIDE DISTANCE BOTH BEFORE AND AFTER RELOCATION:
LENGTH BEFORE: _ FT AFTER: _ FT
WIDTH BEFORE (based on normal high water contours): _ FT
AVERAGE DEPTH BEFORE: FT AFTER: FT
(b) (2) STREAM CHANNEL IMPACTS WILL RESULT FROM: (CHECK ALL THAT APPLY)
OPEN CHANNEL RELOCATION: - PLACEMENT OF PIPE IN CHANNEL: pine
CHANNEL EXCAVATION: - CONSTRUCTION OF A DAM/FLOODING: dam/flooding
OTHER:
11. IF CONSTRUCTION OF A POND IS PROPOSED, WHAT IS THE SIZE OF THE WATERSHED
DRAINING TO THE POND? - WHAT IS THE EXPECTED POND SURFACE AREA? -
12. DESCRIPTION OF PROPOSED WORK INCLUDING DISCUSSION OF TYPE OF MECHANICAL
EQUIPMENT TO BE USED? (ATTACH PLANS; 81/2 BY 11 DRAWINGS ONLY)
Construction of Environmental Amenity Wetland Area, Road Construction
PURPOSE OF PROPOSED WORK: Aesthetics and Environmental Amenity: To Access Property
STATE REASONS WHY IT IS BELIEVED THAT THIS ACTIVITY MUST BE CARRIED OUT IN
WETLANDS (INCLUDE ANY MEASURES TAKEN TO MINIMIZE WETLAND IMPACTS)
Channels and wetlands to be impacted are of relatively low uuality. Increased hvdroloav may
restore historically present wetlands and will serve a secondary function of improvement of water
quality and increased biodiversity and aquatic habitats.
15. YOU ARE REQUIRED TO CONTACT THE US FISH AND WILDLIFE SERVICE AND/OR
NATIONAL MARINE FISHERIES SERVICE REGARDING THE PRESENCE OF ANY FEDERALLY
LISTED OR PROPOSED FOR LISTING ENDANGERED OR THREATENED SPECIES OR CRITICAL
HABITAT IN THE PERMIT AREA THAT MAY BE AFFECTED BY THE PROPOSED PROJECT.
DATE CONTACTED: April 23.2001
16. YOU ARE REQUIRED TO CONTACT THE STATE HISTORIC PRESERVATION OFFICER
(SHPO) REGARDING THE PRESENCE OF HISTORIC PROPERTIES IN THE PERMIT AREA
WHICH MAY BE AFFECTED BY THE PROPOSED PROJECT. DATE CONTACTED To Be
Completed by USACOE if necessary.
17. DOES THE PROJECT INVOLVE AN EXPENDITURE OF PUBLIC FUNDS OT THE USE OF
PUBLIC (STATE) LAND? YES ? NO ®X (IF NO, GO TO 16)
(a) IF YES, DOES THE PROJECT REQUIRE PREPARATION OF AN ENVIRONMENTAL
DOCUMENT PURSUANT TO THE REQUIREMENTS OF THE NORTH CAROLINA
ENVIRONMENTAL POLICY ACT? YES ? NO F]
(b) IF YES, HAS THE DOCUMENT BEEN REVIEWED THROUGH THE NORTH CAROLINA
DEPARTMENT OF ADMINISTRATION STATE CLEARINGHOUSE YES ? NO ?
IF ANSWER 17b IS YES, THEN SUBMIT APPROPRIATE DOCUMENTATION FROM THE STATE
CLEARINGHOUSE WITH THE NORTH CAROLINA ENVIRONMENTAL POLICY ACT.
QUESTIONS REGARDING THE STATE CLEARINGHOUSE REVIEW PROCESS SHOULD BE
DIRECTED TO MS. CHRYS BAGGETT, DIRECTOR STATE CLEARINGHOUSE, NORTH
CAROLINA DEPARTMENT OF ADMINISTRATION, 116 WEST JONES STREET, RALEIGH,
NORTH CAROLINA 27603-8003, TELEPHONE [phone].
18. THE FOLLOWING ITEMS SHOULD BE INCLUDED WITH THIS APPLICATION IF PROPOSED
ACTIVITY INVOLVES THE DISCHARGE OF EXCAVATED OF FILL MATERIAL INTO
WETLANDS:
(a) WETLAND DELINEATION MAP SHOWING ALL WETLANDS, STREAMS, LAKES, AND
PONDS ON THE PROPERTY (FOR NATIONWIDE PERMIT NUMBERS 14, 18, 21, 26, 29, AND 38).
ALL STREAM (INTERMITTENT AND PERMANENT) ON THE PROPERTY MUST BE SHOWN ON
THE MAP. MAP SCALES SHOULD BE I INCH EQUALS 50 FEET OF 1 INCH EQUALS 100 FEET
OF THEIR EQUIVALENT.
(b) IF AVAILABLE, REPRESENTATIVE PHOTOGRAPH OF WETLANDS TO BE IMPACTED BY
PRODUCT.
(c) IF DELINEATION WAS PERFORMED BY A CONSULTANT, INCLUDE ALL DATA SHEETS
RELEVANT TO THE PLACEMENT OF THE DELINEATION LINE.
(d) ATTACH A COPY OF THE STORMWATER MANAGEMENT PLAN IF REQUIRED.
(e) WHAT IS LAND USE OF SURROUNDING PROPERTY? Commercial/Residential
(o IF APPLICABLE, WHAT IS PROPOSED METHOD OF SEWAGE DISPOSAL? Sanitary Sewer
SIGNED AND DATED AGENT AUTHORIZATION LETTER, IF APPLICABLE.
NOTE: WETLANDS OR WATERS OF THE US MAY NOT BE IMPACTED PRIOR TO:
I. ISSUANCE OF A SECTION 404 CORPS OF ENGINEERS PERMIT,
2. EITHER THE ISSUANCE OR WAIVER OF A 401 DIVISION OF WATER QUALITY
CERTIFICATION, AND
3. (IN THE TWENTY COASTAL COUNTIES ONLY), A LETTER FROM THE NORTH
CAROLINA DIVISION OF COASTAL MANAGEMENT STATING THE PROPOSED
ACTIVITY IS CONSISTENT WITH THE NORTH CAROLINA COASTAL MANAGEMENT
PROGRAM,
L3
OWNER'S/AGENT'S SIGNATURE DATE
(AGENT'S SIGNATURE VALID ONLY
IF AUTHORIZATION LETTER FROM
THE OWNER IS PROVIDED).
ECHOTA, BOONE
WATAUGA COUNTY, NORTH CAROLINA
WNR, Inc. Project # FR-1001
IMPACT DATA TABLE
NATIONWIDE 14 IMPACTS

ROAD CROSSING 3: 65 linear feet (0.004 acres) of fill in perennial, important channel
(No Mitigation Anticipated - Less Than 150 linear feet per stream)
ROAD CROSSING 4: 65 linear feet (0.004 acres) of fill in perennial, important channel
(No Mitigation Anticipated - Less Than 150 linear feet per stream)
ROAD CROSSING 5: 65 linear feet (0.004 acres) of fill in perennial, important channel
(No Mitigation Anticipated - Less Than 150 linear feet per stream)
ROAD CROSSING 6: Ached Span - No Channel Impacts
ROAD CROSSING 7: Ached Span - No Channel Impacts
ROAD CROSSING 8: Ached Span - No Channel Impacts
ROAD CROSSING 9: Ached Span - No Channel Impacts
ROAD CROSSING 10 : Ached Span - No Channel Impacts
ROAD CROSSING 11 : 65 linear feet (0.004 acres) of fill in perennial, important channel
(No Mitigation Anticipated - Less Than 150 linear feet per stream)
ROAD CROSSING 12 : 65 linear feet (0.004 acres) of fill in perennial, important channel
(No Mitigation Anticipated - Less Than 150 linear feet per stream)
NATIONWIDE 39 IMPACTS
ROAD CROSSING 1/: 30 linear feet (0.002 acres) of fill in perennial, important channel
DAM (No Mitigation Anticipated - Less Than 150 linear feet per stream)
ROAD CROSSING 2/: 50 linear feet (0.004 acres) of fill in perennial, important channel
DAM (No Mitigation Anticipated - Less Than 150 linear feet per stream)
ENVIRONMENTAL: 20 linear feet for berm, 2 linear feet for weir, 0.05 acres wetlands
AMENITY 1 512 linear feet flooding
ENVIRONMENTAL: 20 linear feet for berm, 4 linear feet for weirs, 0.02 acres
AMENITY 2 wetlands, 800 linear feet flooding
\\Server\data\PROJECTS\00 852 Echota\Drawings\PrePlatB.dwg Fri Apr 20 16:49:43 2001
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Name: VALLE CRUCIS Location: 036° 09'59.3" N 081° 45' 55.6" W
Date: 2/12/101 Caption: Proposed Planned Unit Dev.
Scale: 1 inch equals 666 feet Echota, LLC
WNR, Inc. Job # FR-1001
Copyright (C) 1997, Maptech, Inc.
Delineation Performed by: Wetland and Natural Resource Consultants, Inc.
720 South Main Avenue
Newton, NC 28658
Phone: [phone] Fax: [phone]
WETLAND DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
Project/Site: Hwy 105 / Planned Unit Development Date: 11/00
Applicant/Owner: Echota, LLC County: Watauga County
Investigator: Tamp Bandy and Jennifer Robertson State: North Carolina
Do normal circumstances exist on the site?
Is the site significantly disturbed?
(Atypical situation)
Is the area a potential problem area?
(If needed, explain on reverse.)
VEGETATION
1. Juncus spp. grass FACW+
2. Carex spp. grass FACW+
3. Boehmeria cylindrica herb FACW+
4. Impatiens capensis herb FACW
5. Solidago spp. herb FACW
6. Acer rubrum tree FAC
7. Comus amomum shrub FACW+
8. S. canadensis shrub FACW-
Yes Community ID: Wetland
No Transit ID: Wetland
No Plot ID: Wetland
9. Salix sericea tree OBL
10. Saururus cernuus herb OBL
11. E. maculatus herb FACW-
12. P. sagittatum herb OBL
13.
14.
15.
16.
Percent of dominant species that are OBL, FACW or FAC (excluding FAC-): 100 %
Remarks:
HYDROLOGY
_X Recorded Data (describe in remarks)
Stream, Lake or Tide Gauge
Aerial Photographs
Other
No Recorded Data Available
Field Observations:
Depth of Surface Water: _0 to 2_ (in.)
Depth to Free Water in Pit: _0 to 10_ (in.)
Depth to Saturated Soil: _0 to 5_ (in.)
Wetland Hydrology Indicators:
Primary Indicators:
X Inundated
X Saturated in Upper 12 Inches
Water Marks
Drift Lines
Sediment Deposits
Drainage Patterns in Wetlands
Secondary Indicators: (2 or more required)
X Oxidized Root Channels in
Upper 12 Inches
X Water-Stained Leaves
Local Soil Survey Data
X FAC Neutral Test
Other (explain in remarks)
Remarks: Wetlands associated with channels and groundwater seeps.
WLdata.frmFR-1001
Project # FR-1000
SOILS
Map Unit Name
(Series and Phase): Wehadkee fine sandy loam

Taxonomy (Subgroup): Fluvaquentic Drainage Class: poorly drained
Field Observations:
Confirm Mapped Type? Field Confirmed
Profile Description:
Depth Matrix Color Mottle Colors Mottle Texture, Concretions,
(ins.) Horizon (Munsell Moist) (Munsell Moist) Abundance/Contrast Structure etc.
0-9 Ap 10YR 4/3 loam
9-13 Big 2.5Y 6/2 loam
13-32 B21 g 5Y 6/1 sandy clay loam
Hydric Soil Indicators:
Histosol Concretions
Histic Epipedon High Organic Content in Surface Layer in Sandy Soil
_X_ Sulfidic Odor Organic Streaking in Sandy Soils
X_ Aquic Moisture Regime X Listed on Local Hydric Soils List **
_X_ Reducing Conditions Listed on National Hydric Soils List
_X Gleyed or Low Chroma Colors Other (explain in remarks)
Remarks: Wetlands associated with channel features and groundwater seeps.
Wetland Determination
(yes or no)
Hydrophytic Vegetation Present? YES
Wetland Hydrology Present? YES
Hydric Soils Present? YES
Is This Sampling Point Within a Wetland? YES
Remarks:
WLdata.frmFR-1001
Delineation Performed by: Wetland and Natural Resource Consultants, Inc.
720 South Main Avenue
Newton, NC 28658
Phone: [phone] Fax: [phone]
WETLAND DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
Project/Site: Hwy 105 / Planned Unit Development Date: 11100
Applicant/Owner: Echota, LLC County: Watauga County
Investigator: Tamp Bandy and Jennifer Robertson State: North Carolina
Do normal circumstances exist on the site?
Is the site significantly disturbed?
(Atypical situation)
Is the area a potential problem area?
(If needed, explain on reverse.)
VEGETATION
1.
2.
3.
4.
5.
6.
7.
8.
Yes Community ID: Channels
No
Transit ID: Channels
No Plot ID: Channels
9.
10.
11.
12.
13.
14.
15.
16.
Percent of dominant species that are OBL, FACW or FAC (excluding FAC-): N/A
Remarks:
HYDROLOGY
X Recorded Data (describe in remarks)
Stream, Lake or Tide Gauge
Aerial Photographs
Other
No Recorded Data Available
Field Observations:
Depth of Surface Water: _0 - 6_ (in.)
Depth to Free Water in Pit: 0 (in.)
Depth to Saturated Soil: 0 (in.)
Wetland Hydrology Indicators:
Primary Indicators:
X Inundated
X Saturated in Upper 12 Inches
Water Marks
Drift Lines
Sediment Deposits
Drainage Patterns in Wetlands
Secondary Indicators: (2 or more required)
Oxidized Root Channels in
Upper 12 Inches
Water-Stained Leaves
Local Soil Survey Data
FAC Neutral Test
Other (explain in remarks)
Remarks:
WLdata.frmFR-1000
Project # FR-1000
SOILS
Map Unit Name
(Series and Phase): Wehadkee fine sandy loam

Taxonomy (Subgroup): Fluvaquentic Endoaquepts Drainage Class: poorly drained
Field Observations:
Confirm Mapped Type? Field Confirmed
Profile Description:
Depth Matrix Color Mottle Colors Mottle Texture, Concretions,
(ins.) Horizon (Munsell Moist) (Munsell Moist) Abundance/Contrast Structure etc.
0-8 Ap 10YR 5/2 fine sandy loam
8-17 Bg1 10YR 4/1 loam
17-24 Bg2 10YR 6/1 sandy clay loam
Hydric Soil Indicators:
Histosol Concretions
Histic Epipedon High Organic Content in Surface Layer in Sandy Soil
_X_ Sulfidic Odor Organic Streaking in Sandy Soils
Aquic Moisture Regime X_ Listed on Local Hydric Soils List **
X Reducing Conditions Listed on National Hydric Soils List
_X Gleyed or Low-Chroma Colors Other (explain in remarks)
Remarks: Bottom of Unnamed Tributaries to the Watauga River; both perennial and intermittent features
Wetland Determination
(yes or no)
Hydrophytic Vegetation Present? N/A
Wetland Hydrology Present? YES
Hydric Soils Present? YES
Is This Sampling Point Within a Wetland? YES
Remarks:
WLdata.frmFR-1000
AGREEMENT FOR ENTRY
This Agreement made and entered into ey and between the NORTH CAROLINA
DEPARTMENT Of' TRANSPORTATION (the "Department 1.) and, 5.: & (the
9.1* .A-a
"Owner") provides the following:
The Departmenl wishes to conduct a survey and/or investigation of the subject
property by taking soil evaluations, land surveys, hydrology samples, groundwiaer
samples and other ecological type survey samples for possible stream bank and/or
wetland mitigation. The samples and monitoring are to be conducted by standard survey
practices, barings and shallow groundwater monitoring wells, and soil/vegetation
sampling and analysis;
The Department seeds access to Owner's property in the county that is the subject
of this Agreement ("the subject property") in order to conduct said survey and/or
investigation, said property being more particularly described as follows:
The Owner and the Depatttnent agree as follows:
I . The Department may enter the subject property for the limited purposes of
conducting land surveys, hydrologic surveys, vegetation surveys, and other general
purposes and acquirements.
2. The Owner hereby grants the Department such reasonable access, including
cgress and ingress over its property, as needed for the Department's wetland/stream
studies, with agreed upon notice.
3, The Department can enter Owner's property only for purposes set forth in this
Agreement. If the Department, Its contractors or assigns causes such dwnage to the
property, in furtherance of the conduct allowed by this Agreement, the Department will
promptly repiasrhepsir said damage.
4. Neither this Agreement of Entry nor any activity of the Department undertaken in
connection with the investigation shall be deemed a trespass vn or a taking of the
Owner's property by the Department.
5. The Department will share the results and conclusions of the investigation with
the Owner; however, all written reports, conclusions, and other documents generated in
connection with the investigation shall remain the sole property of the Department,
i(Pro?perty Owner's ig re) Dm le
U.S. ARMY CORPS OF ENGINEERS
WILMINGTON DISTRICT
Action ID: 200130505
County: Watauga
Waters of the U.S. Survey/DelineationVerification
Property owner/Authorized Agent: Foscoe Realty, Att'n: Mr. Mark Harrill
Address: 8742 Hwy 105 South
Boone, NC 28607
Telephone Number:
Size and Location of Property (waterbody, Highway name/number, town, etc.):
Echota, LLC Planned Unit Development located on a 118.26 acre tract on the north side of
Hwy 105; in Foscoe
Indicate Which of the following apply:
X There are waters of the U.S. on the above described property which have been accurately
flagged/delineated. We recommend that the delineated lines be surveyed. The surveyed
lines must be verified by our staff before the Corps will make a final jurisdictional
determination on your property.
The submitted survey plat dated for the above referenced property
accurately reflects the limits of waters of the U.S. on the property. Unless there is a
change in the law or our published regulations, this determination may be relied upon for
a period not to exceed 5 years from the date of this notice.
Placement of dredged or fill material in waters othe U.S. on this property without a Department
of the Army permit is in most cases a violation of Section 301 of the Clean Water Act (33 USC
1311). A permit is not required for work on the property restricted entirely to existing high
ground. It is our understanding that there will be no impacts to waters of the U.S. with
regards to Phase I of the project. However, future phases of the project will involve some
impacts to waters of the U.S., which will require notification to us with a pre-construction
notification application. If you have any questions regarding the Corps of Engineers regulatory
program, please contact:
Steve Chapin at 828) 271-4014
Project Manager Signature- Date February 15, 2001
cc: W&NR Consultants; Watauga Co. Planning & Inspections

Wetland and

Natural Resource,.. a-
Consultants, Inc,

April 3, 2001
U.S. Army Corps of Engineers
Asheville Regulatory Field Office
Attn: Mr. Steve Chapin
151 Patton Avenue, Room 208
Asheville, North Carolina 28801-5006
Re: Echota Residential Development (+/- 118 acres)
Action ID: 200130505
Foscoe, Watauga County, North Carolina
Dear Mr. Chapin and Mr. Domey:
01 06 30
The purpose of this letter is to request authorization for proposed impacts to Jurisdictional Waters of
the U.S. on the Echota Development site in Watauga County, North Carolina. A copy of your
jurisdictional determination approval is attached. The wetlands have been surveyed and are shown
on the attached maps.
The project requests flooding and fill impacts to approximately 1828 linear feet of jurisdictional
channels and an estimated 0.07 acres of vegetated wetland for the proposed installation of two
separate environmental amenity areas and road crossings. Approximately 126 linear feet of hard
impacts will occur for the construction of dams, berms, and weirs under Nationwide Permit 39. The
amenity areas are not required under the state 401 Water Quality Certification, but will serve as an
aesthetics and environmental amenity for the development. Approximately 325 linear feet of hard
impacts will occur for the construction of five road crossings under Nationwide Permit 14 to access the
development.
Mitigation. Minimization and Avoidance
All remaining road crossings of jurisdictional channels are to utilize arch pipes in order to avoid
channel disturbances that exceed 150 linear feet per drainage of individual stream channels. The
creation of approximately 3 acres of environmental amenity wetlands and surface waters are offered
as mitigation for impacts. These areas will serve a secondary function for water quality. Additionally,
thirty foot vegetated buffers (estimated 6 acres) will be left adjacent to both sides of all remaining
channels on the project site as a mitigative action.
We look forward to hearing from you. Please feel free to call with questions or for additional
information.
Best Regards,
Tamp Bandy
828-3129207 Chris
828,,312,9205 Jennifer
82843129206 Tamp
Jennifer Robertson
N.C. Division of Water Quality
Attn: Mr. John Dorney
401 Wetlands Unit
1650 Mail Service Center
Raleigh, North Carolina 27699-1650
A
720 South Main Ave.
Newton, NC 28658
828."465."3050 Fax
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Name: VALLE CRUCIS Location: 036009'59.3" N 081'45'55.6" W
Date: 2/12/101 Caption: Proposed Planned Unit Dev.
Scale: 1 inch equals 2000 feet Echota, LLC
WNR, Inc. Job # FR-1001
Copyright (C) 1997, Meptech, Inc
DWQ ID: _ CORPS ACTION ID: _
NATIONWIDE PERMIT REQUESTED (PROVIDE NATIONWIDE PERMIT #): 14 and 39
PRE-CONSTRUCTION NOTIFICATION APPLICATION
FOR NATIONWIDE PERMITS THAT REQUIRE:
1. NOTIFICATION TO THE CORPS OF ENGINEERS
2. APPLICATION FOR SECTION 401 CERTIFICATION
3. COORDINATION WITH THE NC DIVISION OF COASTAL MANAGEMENT
SEND THE ORIGINAL AND (1) COPY OF THIS COMPLETED FORM TO THE APPROPRIATE FIELD
OFFICE OF THE CORPS OF ENGINEERS (SEE AGENCY ADDRESSES SHEET). SEVEN (7)
COPIES MUST BE SENT TO THE NC DIVISION OF WATER QUALITY,
ATTN: JOHN DORNEY, 4401 REEDY CREEK ROAD, RALEIGH, NC
27607. PLEASE PRINT OR TYPE.
1. OWNER'S NAME: ECHOTA, LLC Mr. Mark Harrill
2. MAILING ADDRESS: 151 Mr. Bish Blvd. Boone, NC 28607
SUBDIVISION NAME Echota
CITY: Boone STATE: NC ZIP CODE: 28607
PROJECT LOCATION ADDRESS, INCLUDING SUBDIVISION NAME (IF DIFFERENT FROM
MAILING ADDRESS ABOVE):
3. TELEPHONE NUMBER: (HOME) (WORK) 1-828-963-7600
4. IF APPLICABLE: AGENT'S NAME OR RESPONSIBLE CORPORATE OFFICIAL, ADDRESS,
PHONE NUMBER:
Wetland and Natural Resource Consultants, Inc PO Boa 224 Newton, NC 28658 1-828-465-3035 (phone)
1-828-465-3050 (fax) [e-mail]
5. LOCATION OF WORK (PROVIDE A MAP, PREFERABLY A COPY OF USGS TOPOGRAPHIC MAP
OR AERIAL PHOTOGRAPHY WITH SCALE):
COUNTY: Watauga - NEAREST TOWN: Boone
SPECIFIC LOCATION (INCLUDE ROAD NUMBERS, LANDMARKS, ECT.) 8742 Hwy 105 in
Foscoe, Site adjacent to Foscoe Realty, see attached USGS TopoQuad
6. "ACTED OR NEAREST STREAMAUVER: unnamed tributaries to Watauga River RIVER
BASIN: Watauga
7. (a) IS PROJECT LOCATED NEAR WATER CLASSIFIED AS TROUT, TIDAL SALTWATER, (SA),
HIGH QUALITY WATERS (HQW), OUTSTANDING RESOURCE WATERS (ORW), WATER
SUPPLY (WS-I OR WS-II)? YES ? NO ? IF YES, EXPLAIN: _ YES (Trout Waters of Watauga
River)
(b) IS THE PROJECT LOCATED WITHIN A NORTH CAROLINA DIVISION OF COASTAL
MANAGEMENT AREA OF ENVIRONMENTAL CONCERN (AEC)? YES E] NO ONO
(c) IF THE PROJECT IS LOCATED WITHIN A COASTAL COUNTY (SEE PAGE 7 FOR LIST OF
COASTAL COUNTIES), WHAT IS THE LAND USE PLAN (LUP) DESIGNATION? NO
8. (a) HAVE ANY SECTION 404 PERMITS BEEN PREVIOUSLY REQUESTED FOR USE ON THIS
PROJECT? YES ? NO ? NO (JD Tear Sheet only, Action ID: 200130505). IF YES, PROVIDE
ACTION I.D. NUMBER OF PREVIOUS PERMIT AND ANY ADDITIONAL INFORMATION
INCLUDE PHOTOCOPY OF 401 CERTIFICATION):
(b) ARE ADDITIONAL PERMIT REQUESTS EXPECTED FOR THIS PROPERTY IN THE FUTURE?
YES ? NO ® NO IF YES, DESCRIBE ANTICIPATED WORK:
(a) ESTIMATED TOTAL NUMBERS OF ACRES IN TRACT OF LAND: 118
(b) ESTIMATED TOTAL NUMBER OF ACRES OF WETLANDS LOCATED ON PROJECT SITE:
OS acres
10. (a) NUMBER OF ACRES OF WETLANDS IMPACTED BY THE PROPOSED PROJECT BY:
FILLING: - 451' (0.04 acres-channels) no wetlands EXCAVATION: _
FLOODING: _ .1312'(0.09 acres-channels) 0.07 wetlands OTHER : _
DRAINAGE : _ TOTAL ACRES TO BE IMPACTED: 0.2 acres (channels and wetlands)
(b) (1) STREAM CHANNEL TO BE IMPACTED BY THE PROPOSED PROJECT (IF RELOCATED,
PROVIDE DISTANCE BOTH BEFORE AND AFTER RELOCATION:
LENGTH BEFORE: _ FT AFTER: _ FT
WIDTH BEFORE (based on normal high water contours): _ FT
AVERAGE DEPTH BEFORE: FT AFTER: FT
(b) (2) STREAM CHANNEL IMPACTS WILL RESULT FROM: (CHECK ALL THAT APPLY)
OPEN CHANNEL RELOCATION: _ PLACEMENT OF PIPE IN CHANNEL: Pine
CHANNEL EXCAVATION: _ CONSTRUCTION OF A DAM/FLOODING: dam/flooding
OTHER:
11. IF CONSTRUCTION OF A POND IS PROPOSED, WHAT IS THE SIZE OF THE WATERSHED
DRAINING TO THE POND? - WHAT IS THE EXPECTED POND SURFACE AREA?
12. DESCRIPTION OF PROPOSED WORK INCLUDING DISCUSSION OF TYPE OF MECHANICAL
EQUIPMENT TO BE USED? (ATTACH PLANS; 81/2 BY 11 DRAWINGS ONLY)
Construction of Environmental Amenity Wetland Area: Road Construction
PURPOSE OF PROPOSED WORK: Aesthetics and Environmental Amenity; To Access Property
STATE REASONS WHY IT IS BELIEVED THAT THIS ACTIVITY MUST BE CARRIED OUT IN
WETLANDS (INCLUDE ANY MEASURES TAKEN TO MINIMIZE WETLAND IMPACTS)
Channels and wetlands to be impacted are of relatively low auaGty. Increased hvdrolosv may
restore historically present wetlands and will serve a secondary function of improvement of water
quality and increased biodiversity and aquatic habitats.
15. YOU ARE REQUIRED TO CONTACT THE US FISH AND WILDLIFE SERVICE AND/OR
NATIONAL MARINE FISHERIES SERVICE REGARDING THE PRESENCE OF ANY FEDERALLY
LISTED OR PROPOSED FOR LISTING ENDANGERED OR THREATENED SPECIES OR CRITICAL
HABITAT IN THE PERMIT AREA THAT MAY BE AFFECTED BY THE PROPOSED PROJECT.
DATE CONTACTED: April 23, 2001
16. YOU ARE REQUIRED TO CONTACT THE STATE HISTORIC PRESERVATION OFFICER
(SHPO) REGARDING THE PRESENCE OF HISTORIC PROPERTIES IN THE PERMIT AREA
WHICH MAY BE AFFECTED BY THE PROPOSED PROJECT. DATE CONTACTED To Be
Completed by USACOE if necessary.
17. DOES THE PROJECT INVOLVE AN EXPENDITURE OF PUBLIC FUNDS OT THE USE OF
PUBLIC (STATE) LAND? YES ? NO ®X (IF NO, GO TO 16)
(a) IF YES, DOES THE PROJECT REQUIRE PREPARATION OF AN ENVIRONMENTAL
DOCUMENT PURSUANT TO THE REQUIREMENTS OF THE NORTH CAROLINA
ENVIRONMENTAL POLICY ACT? YES ? NO ?
(b) IF YES, HAS THE DOCUMENT BEEN REVIEWED THROUGH THE NORTH CAROLINA
DEPARTMENT OF ADMINISTRATION STATE CLEARINGHOUSE YES ? NO ?
IF ANSWER 17b IS YES, THEN SUBMIT APPROPRIATE DOCUMENTATION FROM THE STATE
CLEARINGHOUSE WITH THE NORTH CAROLINA ENVIRONMENTAL POLICY ACT.
QUESTIONS REGARDING THE STATE CLEARINGHOUSE REVIEW PROCESS SHOULD BE
DIRECTED TO MS. CHRYS BAGGETT, DIRECTOR STATE CLEARINGHOUSE, NORTH
CAROLINA DEPARTMENT OF ADMINISTRATION, 116 WEST JONES STREET, RALEIGH,
NORTH CAROLINA 27603-8003, TELEPHONE [phone].
18. THE FOLLOWING ITEMS SHOULD BE INCLUDED WITH THIS APPLICATION IF PROPOSED
ACTIVITY INVOLVES THE DISCHARGE OF EXCAVATED OF FILL MATERIAL INTO
WETLANDS:
(a) WETLAND DELINEATION MAP SHOWING ALL WETLANDS, STREAMS, LAKES, AND
PONDS ON THE PROPERTY (FOR NATIONWIDE PERMIT NUMBERS 14, 18, 21, 26, 29, AND 38).
ALL STREAM (INTERMITTENT AND PERMANENT) ON THE PROPERTY MUST BE SHOWN ON
THE MAP. MAP SCALES SHOULD BE 1 INCH EQUALS 50 FEET OF I INCH EQUALS 100 FEET
OF THEIR EQUIVALENT.
(b) IF AVAILABLE, REPRESENTATIVE PHOTOGRAPH OF WETLANDS TO BE IMPACTED BY
PRODUCT.
(c) IF DELINEATION WAS PERFORMED BY A CONSULTANT, INCLUDE ALL DATA SHEETS
RELEVANT TO THE PLACEMENT OF THE DELINEATION LINE.
(d) ATTACH A COPY OF THE STORMWATER MANAGEMENT PLAN IF REQUIRED.
(e) WHAT IS LAND USE OF SURROUNDING PROPERTY? Commercialmaidential
(fl IF APPLICABLE, WHAT IS PROPOSED METHOD OF SEWAGE DISPOSAL? Sanitary Sewer
SIGNED AND DATED AGENT AUTHORIZATION LETTER, IF APPLICABLE.
NOTE: WETLANDS OR WATERS OF THE US MAY NOT BE IMPACTED PRIOR TO:
1. ISSUANCE OF A SECTION 404 CORPS OF ENGINEERS PERMIT,
2. EITHER THE ISSUANCE OR WAIVER OF A 401 DIVISION OF WATER QUALITY
CERTIFICATION, AND
3. (IN THE TWENTY COASTAL COUNTIES ONLY), A LETTER FROM THE NORTH
CAROLINA DIVISION OF COASTAL MANAGEMENT STATING THE PROPOSED
ACTIVITY IS CONSISTENT WITH THE NORTH CAROLINA COASTAL MANAGEMENT
PROGRAM,
OWNER'S/AGENT'S SIGNATURE DATE
(AGENT'S SIGNATURE VALID ONLY
IF AUTHORIZATION LETTER FROM
THE OWNER IS PROVIDED).
ECHOTA, BOONE
WATAUGA COUNTY, NORTH CAROLINA
WNR, Inc. Project # FR-1001
IMPACT DATA TABLE
NATIONWIDE 14 IMPACTS
ROAD CROSSING 3: 65 linear feet (0.004 acres) of fill in perennial, important channel
(No Mitigation Anticipated - Less Than 150 linear feet per stream)
ROAD CROSSING 4: 65 linear feet (0.004 acres) of fill in perennial, important channel
(No Mitigation Anticipated - Less Than 150 linear feet per stream)
ROAD CROSSING 5: 65 linear feet (0.004 acres) of fill in perennial, important channel
(No Mitigation Anticipated - Less Than 150 linear feet per stream)
ROAD CROSSING 6: Ached Span - No Channel Impacts
ROAD CROSSING 7: Ached Span - No Channel Impacts
ROAD CROSSING 8: Ached Span - No Channel Impacts
ROAD CROSSING 9: Ached Span - No Channel Impacts
ROAD CROSSING 10: Ached Span - No Channel Impacts
ROAD CROSSING 11: 65 linear feet (0.004 acres) of fill in perennial, important channel
(No Mitigation Anticipated - Less Than 150 linear feet per stream)
ROAD CROSSING 12: 65 linear feet (0.004 acres) of fill in perennial, important channel
(No Mitigation Anticipated - Less Than 150 linear feet per stream)
NATIONWIDE 39 IMPACTS
ROAD CROSSING 1/: 30 linear feet (0.002 acres) of fill in perennial, important channel
DAM (No Mitigation Anticipated - Less Than 150 linear feet per stream)
ROAD CROSSING 2/: 50 linear feet (0.004 acres) of fill in perennial, important channel
DAM (No Mitigation Anticipated - Less Than 150 linear feet per stream)
ENVIRONMENTAL: 20 linear feet for berm, 2 linear feet for weir, 0.05 acres wetlands
AMENITY 1 512 linear feet flooding
ENVIRONMENTAL: 20 linear feet for berm, 4 linear feet for weirs, 0.02 acres
AMENITY 2 wetlands, 800 linear feet flooding
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Name: VALLE CRUCIS Location: 036° 09' 59.3° N 081'45'55.6" W
Date: 2/12/101 Caption: Proposed Planned Unit Dev.
Scale: 1 inch equals 666 feet Echota, LLC
WNR, Inc. Job # FR-1001
Copyright (C) 1997, Maptech, Inc.
Delineation Performed by: Wetland and Natural Resource Consultants, Inc.
720 South Main Avenue
Newton, NC 28658
Phone: [phone] Fax: [phone]
WETLAND DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
Project/Site: Hwy 105 / Planned Unit Development Date: 11/00
Applicant/Owner: Echota, LLC County: Watauga County
Investigator: Tamp Bandy and Jennifer Robertson State: North Carolina
Do normal circumstances exist on the site?
Is the site significantly disturbed?
(Atypical situation)
Is the area a potential problem area?
(If needed, explain on reverse.)
VEGETATION
1. Juncus spp. grass FACW+
2. Carex spp. grass FACW+
3. Boehmeria cylindrica herb FACW+
4. Impatiens capensis herb FACW
5. Solidago spp. herb FACW
6. Acer rubrum tree FAC
7. Corpus amomum shrub FACW+
8. S. canadensis shrub FACW-
Yes Community ID: Wetland
No Transit ID: Wetland
No Plot ID: Wetland
9. Salix sericea tree
10. Saururus cernuus herb
11. E. maculatus herb
12. P. sagittatum herb
13.
14.
15.
16.
OBL
OBL
FACW-
OBL
Percent of dominant species that are OBL, FACW or FAC (excluding FAC-): 100 %
Remarks:
HYDROLOGY
_X_ Recorded Data (describe in remarks)
Stream, Lake or Tide Gauge
Aerial Photographs
Other
No Recorded Data Available
Field Observations:
Depth of Surface Water: _0 to 2_ (in.)
Depth to Free Water in Pit: _0 to 10_ (in.)
Depth to Saturated Soil: _0 to 5_ (in.)
Wetland Hydrology Indicators:
Primary Indicators:
X Inundated
X Saturated in Upper 12 Inches
Water Marks
Drift Lines
Sediment Deposits
Drainage Patterns in Wetlands
Secondar y Indicators: (2 or more required)
X Oxidized Root Channels in
Upper 12 Inches
X Water-Stained Leaves
Local Soil Survey Data
X FAC Neutral Test
Other (explain in remarks)
Remarks: Wetlands associated with channels and groundwater seeps.
WLdata.frmFR-1001
Project # FR-1000
SOILS
Map Unit Name
(Series and Phase): Wehadkee fine sandy loam Drainage Class: poorly drained
Field Observations:
Taxonomy (Subgroup): Fluvaquentic Confirm Mapped Type? Field Confirmed
Profile Description:
Depth Matrix Color Mottle Colors Mottle Texture. Concretions,
(ins.) Horizon (Munsell Moist) (Munsell Moist) Abundance/Contrast Structure etc.
0-9 Ap 10YR 4/3 loam
9-13 B1g 2.5Y 6/2 loam
13-32 B21g 5Y 6/1 sandy clay loam
Hydric Soil Indicators:
Histosol Concretions
Histic Epipedon High Organic Content in Surface Layer in Sandy Soil
_X_ Sulfidic Odor Organic Streaking in Sandy Soils
X_ Aquic Moisture Regime X Listed on Local Hydric Soils List'
_X_ Reducing Conditions Listed on National Hydric Soils List
_X_ Gleyed or Low-Chroma Colors Other (explain in remarks)
Remarks: Wetlands associated with channel features and groundwater seeps.
Wetland Determination
(yes or no)
Hydrophytic Vegetation Present? YES
Wetland Hydrology Present? YES
Hydric Soils Present? YES
Is This Sampling Point Within a Wetland? YES
Remarks:
WLdata.frmFR-1001
Delineation Performed by: Wetland and Natural Resource Consultants, Inc.
720 South Main Avenue
Newton, NC 28658
Phone: [phone] Fax: [phone]
WETLAND DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
Project/Site: Hwy 105 / Planned Unit Development Date: 11100
Applicant/Owner: Echota, LLC County: Watauga County
Investigator: Tamp Bandy and Jennifer Robertson State: North Carolina
Do normal circumstances exist on the site?
Is the site significantly disturbed?
(Atypical situation)
Is the area a potential problem area?
(If needed, explain on reverse.)
VEGETATION
1.
2.
3.
4.
5.
6.
7.
8.
Yes Community ID: Channels
No
Transit ID: Channels
No Plot ID: Channels
9.
10.
11.
12.
13.
14.
15.
16.
Percent of dominant species that are OBL, FACW or FAC (excluding FAC-): N/A
Remarks:
HYDROLOGY
_X_ Recorded Data (describe in remarks)
Stream, Lake or Tide Gauge
Aerial Photographs
Other
No Recorded Data Available
Field Observations:
Depth of Surface Water: _0 - 6_ (in.)
Depth to Free Water in Pit: 0 (in.)
Depth to Saturated Soil: 0 (in.)
Wetland Hydrology Indicators:
Primary Indicators:
X Inundated
-)C- Saturated in Upper 12 Inches
Water Marks
Drift Lines
Sediment Deposits
Drainage Patterns in Wetlands
Secondary Indicators: (2 or more required)
Oxidized Root Channels in
Upper 12 Inches
Water-Stained Leaves
Local Soil Survey Data
FAC Neutral Test
Other (explain in remarks)
Remarks:
WLdata.frmFR-1000
Project # FR-1000
SOILS
Map Unit Name
(Series and Phase): Wehadkee fine sandy loam Drainage Class: poorly drained
Field Observations:
Taxonomy (Subgroup): Fluvaquentic Endoaquepts Confirm Mapped Type? Field Confirmed
Profile Description:
Depth Matrix Color Mottle Colors Mottle Texture, Concretions,
(ins.) Horizon (Munsell Moist) (Munsell Moist) Abundance/Contrast Structure etc.
0-8 Ap 10YR 5/2 fine sandy loam
8-17 Bg1 10YR 411 loam
17-24 Bg2 10YR 6/1 sandy clay loam
Hydric Soil Indicators:
Histosol Concretions
Histic Epipedon High Organic Content in Surface Layer in Sandy Soil
_X_ Sulfidic Odor Organic Streaking in Sandy Soils
X Aquic Moisture Regime -X-. Listed on Local Hydric Soils List **
_)Reducing Conditions Listed on National Hydric Soils List
_X_ Gleyed or Low Chroma Colors Other (explain in remarks)
Remarks: Bottom of Unnamed Tributaries to the Watauga River; both perennial and intermittent features
Wetland Determination
(yes or no)
Hydrophytic Vegetation Present? N/A
Wetland Hydrology Present? YES
Hydric Soils Present? YES
Is This Sampling Point Within a Wetland? YES
Remarks:
WLdata.frmFR-1000
AGREEMENT FOR ENTRY
This Agreement made and entered into by and between the NORTH CAROLINA
DEPARTMENT OF TRANSPORTATION (the 11C)epa:tment") and (tile "Owner') provides the following.,
The Department wishes to conduct a survey and/or investigation of the subject
property by taking soil evaluations, land surveys, hydrology samples, groundwater
samples and other =logical We survey samptQs for possible stroam batik and/or
wetland mitigation. The samples and monitoring are to be conducted by standard survey
practices, borings and shallow groundwater monitoring wells, and soillvegetatlon
sampling and analysis;
The Department needs access to Own-4r's prapcny in the county that is the subject
of this Agreement ("the subject property") in order to conduct said survey and/or
investigation, said property being more particularly described as follows:
The Owner and the Depa=ent agree as follows:
I . The Dcpartrneat may enter. the -subject property for the limited purposes of
conducting land surveys, hydrologic suaveYs, vegetation surveys, and other general,
purposes and requirements.
2. The Owner hereby grants the Department such reasonable sceess, including
egress and ingrm over its property, as needed for the Department's wetlan&stre=
studies, with agreed upon notice.
3. The Department can enter Owner's property only for purposes set forth in this
Agreement. If the Department, Its contractors or assigns causes such damage to the
property, in furtherance of the conduct allowed by this Agreement, the Department will
promptly replact/ropair said damage.
4, Neither this Agreement of Entry nor any activity of the Department undertaken in
connection with the ln?vestigatiori shall be deerned a tre9pass pn or a taking of the
Owner's property by the Department.
5. The .Department will share the results and conclusions of the investigation with
the Owner; however, all wrltten reports, conclusions, and other documents generated in
connection with the investigation shall remain the sole property of the Department,
M (D tc)
e)
(Property Owner's 9
U.S. ARMY CORPS OF ENGINEERS
WILMINGTON DISTRICT
Action ID: 200130505 County: Watauga
Waters of the U.S. Survey/DelineationVerification
Property owner/Authorized Agent: Foscoe Realty, Att'n: Mr. Mark Harrill
Address: 8742 Hwy 105 South
Boone, NC 28607
Telephone Number:
Size and Location of Property (waterbody, Highway name/number, town, etc.):
Echota, LLC Planned Unit Development located on a 118.26 acre tract on the north side of
Hwy 105; in Foscoe
Indicate Which of the following apply:
X There are waters of the U.S. on the above described property which have been accurately
flagged/delineated. We recommend that the delineated lines be surveyed. The surveyed
lines must be verified by our staff before the Corps will make a final jurisdictional
determination on your property.
The submitted survey plat dated for the above referenced property
accurately reflects the limits of waters of the U.S. on the property. Unless there is a
change in the law or our published regulations, this determination may be relied upon for
a period not to exceed 5 years from the date of this notice.
Placement of dredged or fill material in waters othe U.S. on this property without a Department
of the Army permit is in most cases a violation of Section 301 of the Clean Water Act (33 USC
1311). A permit is not required for work on the property restricted entirely to existing high
ground. It is our understanding that there will be no impacts to waters of the U.S. with
regards to Phase I of the project. However, future phases of the project will involve some
impacts to waters of the U.S., which will require notification to us with a pre-construction
notification application. If you have any questions regarding the Corps of Engineers regulatory
program, please contact:
Steve Chapin at [phone]
Project Manager Signature - .? Date February 15, 2001
cc: W&NR Consultants; Watauga Co. Planning & Inspections

Wetland and
Natural Resource
Inc.
Consultants
,

010630
April 3, 2001
U.S. Army Corps of Engineers
Asheville Regulatory Field Office
Attn: Mr. Steve Chapin
151 Patton Avenue, Room 208
Asheville, North Carolina 28801-5006
Re: Echota Residential Development (+/- 118 acres)
Action ID: 200130505
Foscoe, Watauga County, North Carolina
Dear Mr. Chapin and Mr. Domey:
N.C. Division of Water Quality
Attn: Mr. John Dorney
401 Wetlands Unit
1650 Mail Service Center
Raleigh, North Carolina 27699-1650
The purpose of this letter is to request authorization for proposed impacts to Jurisdictional Waters of
the U.S. on the Echota Development site in Watauga County, North Carolina. A copy of your
jurisdictional determination approval is attached. The wetlands have been surveyed and are shown
on the attached maps.
The project requests flooding and fill impacts to approximately 1828 linear feet of jurisdictional
channels and an estimated 0.07 acres of vegetated wetland for the proposed installation of two
separate environmental amenity areas and road crossings. Approximately 126 linear feet of hard
impacts will occur for the construction of dams, berms, and weirs under Nationwide Permit 39. The
amenity areas are not required under the state 401 Water Quality Certification, but will serve as an
aesthetics and environmental amenity for the development. Approximately 325 linear feet of hard
impacts will occur for the construction of five road crossings under Nationwide Permit 14 to access the
development.
Mitigation, Minimization and Avoidance
All remaining road crossings of jurisdictional channels are to utilize arch pipes in order to avoid
channel disturbances that exceed 150 linear feet per drainage of individual stream channels. The
creation of approximately 3 acres of environmental amenity wetlands and surface waters are offered
as mitigation for impacts. These areas will serve a secondary function for water quality. Additionally,
thirty foot vegetated buffers (estimated 6 acres) will be left adjacent to both sides of all remaining
channels on the project site as a mitigative action.
We look forward to hearing from you. Please feel free to call with questions or for additional
information.
Best Regards,
Tamp Bandy Jennifer Robertson CL)
828-312-9207 Chris 720 South Main Ave.
828,-3129205 Jennifer Newton, NC 28658
828-1-312."9206 Tamp 828,"465-3050 Fax
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1081 ° 4T 0.00" W I I 1 b81- 46 I 0.00 • WI I I I 1081 ° 45-10W
Name: VALLE CRUCIS Location: 036° 09' 59.3" N 081 ° 45' 55.6" W
Date: 2/12/101 Caption: Proposed Planned Unit Dev.
Scale: 1 inch equals 2000 feet Echota, LLC
WNR, Inc. Job # FR-1001
Copyright (C) 1997, Wptech, Inc.
DWQ ID: _ CORPS ACTION ID: _
NATIONWIDE PERMIT REQUESTED (PROVIDE NATIONWIDE PERMIT #): 14 and 39
PRE-CONSTRUCTION NOTIFICATION APPLICATION
FOR NATIONWIDE PERMITS THAT REQUIRE:
1. NOTIFICATION TO THE CORPS OF ENGINEERS
2. APPLICATION FOR SECTION 401 CERTIFICATION
3. COORDINATION WITH THE NC DIVISION OF COASTAL MANAGEMENT
SEND THE ORIGINAL AND (1) COPY OF THIS COMPLETED FORM TO THE APPROPRIATE FIELD
OFFICE OF THE CORPS OF ENGINEERS (SEE AGENCY ADDRESSES SHEET). SEVEN (7)
COPIES MUST BE SENT TO THE NC DIVISION OF WATER QUALITY,
ATTN: JOHN DORNEY, 4401 REEDY CREEK ROAD, RALEIGH, NC
27607. PLEASE PRINT OR TYPE.
1. OWNER'S NAME: ECHOTA, LLC Mr. Mark Harrill
2. MAILING ADDRESS: 151 Mr. Bish Blvd. Boone, NC 28607
SUBDIVISION NAME Echota
CITY: Boone STATE: NC ZIP CODE: 28607
PROJECT LOCATION ADDRESS, INCLUDING SUBDIVISION NAME (IF DIFFERENT FROM
MAILING ADDRESS ABOVE):
3. TELEPHONE NUMBER: (HOME) (WORK) 1-828-963-7600
4. IF APPLICABLE: AGENT'S NAME OR RESPONSIBLE CORPORATE OFFICIAL, ADDRESS,
PHONE NUMBER:
Wetland and Natural Resource Consultants, Inc PO Boa 224 Newton, NC 28658 1-828-465-3035 (phone)
1-828-465-3050 (fax) [e-mail]
5. LOCATION OF WORK (PROVIDE A MAP, PREFERABLY A COPY OF USGS TOPOGRAPHIC MAP
OR AERIAL PHOTOGRAPHY WITH SCALE):
COUNTY: Watauga - NEAREST TOWN: Boone
SPECIFIC LOCATION (INCLUDE ROAD NUMBERS, LANDMARKS, ECT.) 8742 Hwy 105 in
Foscoe, Site adjacent to Foscoe Realty, see attached USGS TopoQuad
6. IMPACTED OR NEAREST STREAMIRIVER: unnamed tributaries to Watauga River RIVER
BASIN: Watauga
7. (a) IS PROJECT LOCATED NEAR WATER CLASSIFIED AS TROUT, TIDAL SALTWATER, (SA),
HIGH QUALITY WATERS (HQW), OUTSTANDING RESOURCE WATERS (ORW), WATER
SUPPLY (WS-I OR WS-In? YES ? NO ? IF YES, EXPLAIN: _ YES (Trout Waters of Watauga
Rh id
(b) IS THE PROJECT LOCATED WITHIN A NORTH CAROLINA DIVISION OF COASTAL
MANAGEMENT AREA OF ENVIRONMENTAL CONCERN (AEC)? YES ? NO ®NO
(c) IF THE PROJECT IS LOCATED WITHIN A COASTAL COUNTY (SEE PAGE 7 FOR LIST OF
COASTAL COUNTIES), WHAT IS THE LAND USE PLAN (LUP) DESIGNATION? NO
8. (a) HAVE ANY SECTION 404 PERMITS BEEN PREVIOUSLY REQUESTED FOR USE ON THIS
PROJECT? YES E] NO ? NO (JD Tear Sheet only,, Action ID: 200130505). IF YES, PROVIDE
ACTION I.D. NUMBER OF PREVIOUS PERMIT AND ANY ADDITIONAL INFORMATION
INCLUDE PHOTOCOPY OF 401 CERTIFICATION):
(b) ARE ADDITIONAL PERMIT REQUESTS EXPECTED FOR THIS PROPERTY IN THE FUTURE?
YES ? NO ® NO IF YES, DESCRIBE ANTICIPATED WORK:
(a) ESTIMATED TOTAL NUMBERS OF ACRES IN TRACT OF LAND: 118
(b) ESTIMATED TOTAL NUMBER OF ACRES OF WETLANDS LOCATED ON PROJECT SITE:
0.5 acres
10. (a) NUMBER OF ACRES OF WETLANDS IMPACTED BY THE PROPOSED PROJECT BY:
FILLING: _ 451' (0.04 acres-channels) no wetlands EXCAVATION: _
FLOODING: _ 1312' (0.09 acres-channels) 0.07 wetlands OTHER : _
DRAINAGE : - TOTAL ACRES TO BE IMPACTED: 0.2 acres (channels and wetlands)
(b) (1) STREAM CHANNEL TO BE IMPACTED BY THE PROPOSED PROJECT (IF RELOCATED,
PROVIDE DISTANCE BOTH BEFORE AND AFTER RELOCATION:
LENGTH BEFORE: _ FT AFTER: _ FT
WIDTH BEFORE (based on normal high water contours): _ FT
AVERAGE DEPTH BEFORE: FT AFTER: FT
(b) (2) STREAM CHANNEL IMPACTS WILL RESULT FROM: (CHECK ALL THAT APPLY)
OPEN CHANNEL RELOCATION: - PLACEMENT OF PIPE IN CHANNEL: pipe
CHANNEL EXCAVATION: _ CONSTRUCTION OF A DAM/FLOODING: dam/flooding
OTHER:
11. IF CONSTRUCTION OF A POND IS PROPOSED, WHAT IS THE SIZE OF THE WATERSHED
DRAINING TO THE POND? _ WHAT IS THE EXPECTED POND SURFACE AREA? -
12. DESCRIPTION OF PROPOSED WORK INCLUDING DISCUSSION OF TYPE OF MECHANICAL
EQUIPMENT TO BE USED? (ATTACH PLANS; 81/2 BY 11 DRAWINGS ONLY)
Construction of Environmental Amenity Wetland Area, Road Construction
PURPOSE OF PROPOSED WORK: Aesthetics and Environmental Amenity: To Access Property
STATE REASONS WHY IT IS BELIEVED THAT THIS ACTIVITY MUST BE CARRIED OUT IN
WETLANDS (INCLUDE ANY MEASURES TAKEN TO MINIMIZE WETLAND IMPACTS)
Channels and wetlands to be impacted are of relatively low quality. Increased hydrology may
restore historically present wetlands and will serve a secondary function of improvement of water
quality and increased biodiversity and aquatic habitats.
15. YOU ARE REQUIRED TO CONTACT THE US FISH AND WILDLIFE SERVICE AND/OR
NATIONAL MARINE FISHERIES SERVICE REGARDING THE PRESENCE OF ANY FEDERALLY
LISTED OR PROPOSED FOR LISTING ENDANGERED OR THREATENED SPECIES OR CRITICAL
HABITAT IN THE PERMIT AREA THAT MAY BE AFFECTED BY THE PROPOSED PROJECT.
DATE CONTACTED: Aord 23, 2001
16. YOU ARE REQUIRED TO CONTACT THE STATE HISTORIC PRESERVATION OFFICER
(SHPO) REGARDING THE PRESENCE OF HISTORIC PROPERTIES IN THE PERMIT AREA
WHICH MAY BE AFFECTED BY THE PROPOSED PROJECT. DATE CONTACTED To Be
Completed by USACOE if necessary.
17. DOES THE PROJECT INVOLVE AN EXPENDITURE OF PUBLIC FUNDS OT THE USE OF
PUBLIC (STATE) LAND? YES ? NO ®X (IF NO, GO TO 16)
(a) IF YES, DOES THE PROJECT REQUIRE PREPARATION OF AN ENVIRONMENTAL
DOCUMENT PURSUANT TO THE REQUIREMENTS OF THE NORTH CAROLINA
ENVIRONMENTAL POLICY ACT? YES ? NO ?
(b) IF YES, HAS THE DOCUMENT BEEN REVIEWED THROUGH THE NORTH CAROLINA
DEPARTMENT OF ADMINISTRATION STATE CLEARINGHOUSE YES ? NO ?
IF ANSWER 17b IS YES, THEN SUBMIT APPROPRIATE DOCUMENTATION FROM THE STATE
CLEARINGHOUSE WITH THE NORTH CAROLINA ENVIRONMENTAL POLICY ACT.
QUESTIONS REGARDING THE STATE CLEARINGHOUSE REVIEW PROCESS SHOULD BE
DIRECTED TO MS. CHRYS BAGGETT, DIRECTOR STATE CLEARINGHOUSE, NORTH
CAROLINA DEPARTMENT OF ADMINISTRATION, 116 WEST JONES STREET, RALEIGH,
NORTH CAROLINA 27603-8003, TELEPHONE [phone].
18. THE FOLLOWING ITEMS SHOULD BE INCLUDED WITH THIS APPLICATION IF PROPOSED
ACTIVITY INVOLVES THE DISCHARGE OF EXCAVATED OF FILL MATERIAL INTO
WETLANDS:
(a) WETLAND DELINEATION MAP SHOWING ALL WETLANDS, STREAMS, LAKES, AND
PONDS ON THE PROPERTY (FOR NATIONWIDE PERMIT NUMBERS 14, 18, 21, 26, 29, AND 38).
ALL STREAM (INTERMITTENT AND PERMANENT) ON THE PROPERTY MUST BE SHOWN ON
THE MAP. MAP SCALES SHOULD BE 1 INCH EQUALS 50 FEET OF 1 INCH EQUALS 100 FEET
OF THEIR EQUIVALENT.
(b) IF AVAILABLE, REPRESENTATIVE PHOTOGRAPH OF WETLANDS TO BE IMPACTED BY
PRODUCT.
(c) IF DELINEATION WAS PERFORMED BY A CONSULTANT, INCLUDE ALL DATA SHEETS
RELEVANT TO THE PLACEMENT OF THE DELINEATION LINE.
(d) ATTACH A COPY OF THE STORMWATER MANAGEMENT PLAN IF REQUIRED.
(e) WHAT IS LAND USE OF SURROUNDING PROPERTY? Commerciamesidential
(f) IF APPLICABLE, WHAT IS PROPOSED METHOD OF SEWAGE DISPOSAL? Sanitary Sewer
SIGNED AND DATED AGENT AUTHORIZATION LETTER, IF APPLICABLE.
NOTE: WETLANDS OR WATERS OF THE US MAY NOT BE UvIPACTED PRIOR TO:
1. ISSUANCE OF A SECTION 404 CORPS OF ENGINEERS PERMIT,
2. EITHER THE ISSUANCE OR WAIVER OF A 401 DIVISION OF WATER QUALITY
CERTIFICATION, AND
3. (IN THE TWENTY COASTAL COUNTIES ONLY), A LETTER FROM THE NORTH
CAROLINA DIVISION OF COASTAL MANAGEMENT STATING THE PROPOSED
ACTIVITY IS CONSISTENT WITH THE NORTH CAROLINA COASTAL MANAGEMENT
PROGRAM,
OWNER'S/AGENT'S SIGNATURE DATE
wl
(AGENT'S SIGNATURE VALID ONLY
IF AUTHORIZATION LETTER FROM
THE OWNER IS PROVIDED).
ECHOTA, BOONE
WATAUGA COUNTY, NORTH CAROLINA
WNR, Inc. Project * FR-1001
IMPACT DATA TABLE
NATIONWIDE 14 IMPACTS
ROAD CROSSING 3: 65 linear feet (0.004 acres) of fill in perennial, important channel
(No Mitigation Anticipated - Less Than 150 linear feet per stream)
ROAD CROSSING 4: 65 linear feet (0.004 acres) of fill in perennial, important channel
(No Mitigation Anticipated - Less Than 150 linear feet per stream)
ROAD CROSSING 5: 65 linear feet (0.004 acres) of fill in perennial, important channel
(No Mitigation Anticipated - Less Than 150 linear feet per stream)
ROAD CROSSING 6: Ached Span - No Channel Impacts
ROAD CROSSING 7: Ached Span - No Channel Impacts
ROAD CROSSING 8: Ached Span - No Channel Impacts
ROAD CROSSING 9: Ached Span - No Channel Impacts
ROAD CROSSING 10: Ached Span - No Channel Impacts
ROAD CROSSING 11: 65 linear feet (0.004 acres) of fill in perennial, important channel
(No Mitigation Anticipated - Less Than 150 linear feet per stream)
ROAD CROSSING 12: 65 linear feet (0.004 acres) of fill in perennial, important channel
(No Mitigation Anticipated - Less Than 150 linear feet per stream)
NATIONWIDE 39 IMPACTS
ROAD CROSSING 1/: 30 linear feet (0.002 acres) of fill in perennial, important channel
DAM (No Mitigation Anticipated - Less Than 150 linear feet per stream)
ROAD CROSSING 2/: 50 linear feet (0.004 acres) of fill in perennial, important channel
DAM (No Mitigation Anticipated - Less Than 150 linear feet per stream)
ENVIRONMENTAL: 20 linear feet for berm, 2 linear feet for weir, 0.05 acres wetlands
AMENITY 1 512 linear feet flooding
ENVIRONMENTAL: 20 linear feet for berm, 4 linear feet for weirs, 0.02 acres
AMENITY 2 wetlands, 800 linear feet flooding
\\Server\data\PROJECTS\00 852 Echota\Drawings\PrePlatB.dwg Fri Apr 20 16:49:43 2001

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SR 061 46- 0. 0. 1 4 '
SR
Name: VALLE CRUCIS Location: 036° 09' 59.3" N 081 ° 45' 55.6" W
Date: 2/12/101 Caption: Proposed Planned Unit Dev.
Scale: 1 inch equals 666 feet Echota, LLC
WNR, Inc. Job # FR-1001
Copyright (C) 1997, Maptech, Inc.
Delineation Performed by: Wetland and Natural Resource Consultants, Inc.
720 South Main Avenue
Newton, NC 28658
Phone: [phone] Fax: [phone]
WETLAND DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
Project/Site: Hwy 105 / Planned Unit Development Date: 11/00
Applicant/Owner: Echota, LLC County: Watauga County
Investigator: Tamp Bandy and Jennifer Robertson State: North Carolina
Do normal circumstances exist on the site?
Is the site significantly disturbed?
(Atypical situation)
Is the area a potential problem area?
(If needed, explain on reverse.)
Yes Community ID: Wetland
No Transit ID: Wetland
No Plot ID: Wetland
VEGETATION
1. Juncus spp. grass FACW+
2. Carex spp. grass FACW+
3. Boehmeria cylindrica herb FACW+
4. Impatiens capensis herb FACW
5. Solidago spp. herb FACW
6. Acer rubrum tree FAC
7. Cornus amomum shrub FACW+
8. S. canadensis shrub FACW-
9. Salix sericea tree OBL
10. Saururus cernuus herb OBL
11. E. maculatus herb FACW-
12. P. sagittatum herb OBL
13.
14.
15.
16.
Percent of dominant species that are OBL, FACW or FAC (excluding FAG-): 1UU io
Remarks:
HYDROLOGY
Recorded Data (describe in remarks)
X Wetland Hydrology Indicators:
_
_
Stream, Lake or Tide Gauge Primary Indicators:
Aerial Photographs X Inundated
Other X Saturated in Upper 12 Inches
No Recorded Data Available Water Marks
Drift Lines
Field Observations: Sediment Deposits
Drainage Patterns in Wetlands
Depth of Surface Water: 0 to 2_ (in.) Secondary Indicators: (2 or more required)
X Oxidized Root Channels in
Depth to Free Water in Pit: _0 to 10_ (in.) Upper 12 Inches
X Water-Stained Leaves
Depth to Saturated Soil: _.0 to 5_ (in.) Local Soil Survey Data
X FAC Neutral Test
Other (explain in remarks)
Remarks: Wetlands associated with channels and groundwater seeps.
WLdata.frmFR-1001
Project # FR-1000
SOILS
Map Unit Name
(Series and Phase): Wehadkee fine sandy loam

Taxonomy (Subgroup): Fluvaquentic
Drainage Class: poorly drained
Field Observations:
Confirm Mapped Type? Field Confirmed
Profile Description:
Depth Matrix Color Mottle Colors Mottle Texture. Concretions,
(ins.) Horizon (Munsell Moist) (Munsell Moist) Abundance/Contrast Structure etc.
0-9 Ap 10YR 4/3 loam
9-13 B1g 2.5Y 6/2 loam
13-32 B21 g 5Y 6/1 sandy clay loam
Hvdric Soil Indicators:
Histosol
Histic Epipedon
_X_ Sulfdic Odor
_X_ Aquic Moisture Regime _X
)C- Reducing Conditions
Gleyed or Low-Chroma Colors Concretions
High Organic Content in Surface Layer in Sandy Soil
Organic Streaking in Sandy Soils
Listed on Local Hydric Soils List'*
Listed on National Hydric Soils List
Other (explain in remarks)
Remarks: Wetlands associated with channel features and groundwater seeps.
Wetland Determination
(yes or no)
Hydrophytic Vegetation Present? YES
Wetland Hydrology Present? YES
Hydric Soils Present? YES
Is This Sampling Point Within a Wetland? YES
Remarks:
WLdata.frmFR-1001
Delineation Performed by: Wetland and Natural Resource Consultants, Inc.
720 South Main Avenue
Newton, NC 28658
Phone: [phone] Fax: [phone]
WETLAND DATA FORM
ROUTINE WETLAND DETERMINATION
(1987 COE Wetlands Delineation Manual)
Project/Site: Hwy 105 / Planned Unit Development Date: 11/00
Applicant/Owner: Echota, LLC County: Watauga County
Investigator: Tamp Bandy and Jennifer Robertson State: North Carolina
Do normal circumstances exist on the site?
Is the site significantly disturbed?
(Atypical situation)
Is the area a potential problem area?
(If needed, explain on reverse.)
Yes Community ID: Channels
No
Transit ID: Channels
No Plot ID: Channels
VEGETATION
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
Percent of dominant species that are OBL, FACW or FAC (excluding FAC-): N/A
Remarks:
HYDROLOGY
X_ Recorded Data (describe in remarks)
Stream, Lake or Tide Gauge
Aerial Photographs
Other
No Recorded Data Available
Field Observations:
Depth of Surface Water: _0 - 6_ (in.)
Depth to Free Water in Pit: 0 (in.)
Depth to Saturated Soil: 0 (in.)
Remarks:
Wetland Hydrology Indicators:
Primary Indicators:
X Inundated
X Saturated in Upper 12 Inches
Water Marks
Drift Lines
Sediment Deposits
Drainage Patterns in Wetlands
Secondary Indicators: (2 or more required)
Oxidized Root Channels in
Upper 12 Inches
Water-Stained Leaves
Local Soil Survey Data
FAC Neutral Test
Other (explain in remarks)
WLdata.frmFR-1000
Project # FR-1000
SOILS
Map Unit Name
(Series and Phase): Wehadkee fine sandy loam

Taxonomy (Subgroup): Fluvaquentic Endoaquepts
Drainage Class: poorly drained
Field Observations:
Confirm Mapped Type? Field Confirmed
Profile Description:
Depth Matrix Color Mottle Colors Mottle Texture. Concretions,
(ins.) Horizon (Munsell Moist) (Munsell Moist) Abundance/Contrast Structure etc.
0-8 Ap 10YR 5/2 fine sandy loam
8-17 Bg1 10YR 4/1 loam
17-24 Bg2 10YR 6/1 sandy clay loam
Hvdric Soil Indicators:
Histosol Concretions
Histic Epipedon High Organic Content in Surface Layer in Sandy Soil
_X_ Sulfidic Odor Organic Streaking in Sandy Soils
_X_ Aquic Moisture Regime X_ Listed on Local Hydric Soils List **
X Reducing Conditions Listed on National Hydric Soils List
X_ Gleyed or Low-Chroma Colors Other (explain in remarks)
Remarks: Bottom of Unnamed Tributaries to the Watauga River; both perennial and intermittent features
Wetland Determination
(yes or no)
Hydrophytic Vegetation Present? N/A
Wetland Hydrology Present? YES
Hydric Soils Present? YES
Is This Sampling Point Within a Wetland? YES
Remarks:
WLdata.frmFR-1000
AGREEMENT FOR ENTRY
This Agreement made and entered into by and between the NORTH CAROLINA
DEPARTMENT OV TRANSPORTATION (the ")epartment") and (The
"Owner-) provides the folfowir,g=
The Department wishes to conduct a survey and/or investigation of the subject
property by taking soil evaluations, land surveys, hydrology samples, groundwater
samples and other ccological type survey Samples for possible stream batik atsd/or
Wetland mitigation. The samples and monitoring are to be conducted by standard survey
practices, borings and shallow groundwater tnortitoring Wells, and soil/vegetation
sampling and analysis;
The Department needs access to Own-sr's property in the county that is the subject
of this Agreement ("the subject property") in order to conduct said survey and/or
investigation, said property being more particularly described as follows:
The Owner and the Department agree as follows:
I . The Department may enter the subject property for the limited purposes of
conducting land surveys, hydrologic suxYeys, vegetation surveys, and other general
purposes and requirements.
21 The Owner hereby grants the Dep9muent such reasonable access, including
cgress and ingress over its property, as needed for the Department's wetland/str=n
studies, with agreed upon notice.
;. The Department can enter Owner's property only for purposes set forth in this
Agreement If the Department, Its cpntrAOM or assigns causes such damagd to the
property, in furtherance of the conduct allowed by this Agreement, the Department will
promptly replace/ropair said damage.
4. Neither this Agreement of Entry nor any activity of the Department undertaken in
connection with the investigation shall be deemed a tre9pass vn or a taking of the
Owner's property by the Department.
5. The Department will share the results and conclusions of the investigation with
the Owner; however, all written reports, conclusions, and other documents generated in
connection with the investigation shall remain the sole property of the Department,
(Property Owner's ?8 ? (D tC)
U.S. ARMY CORPS OF ENGINEERS
WILMINGTON DISTRICT
Action ID: 200130505 County: Watauga
Waters of the U.S. Survey/DelineationVerification
Property owner/Authorized Agent: Foscoe Realty, Att'n: Mr. Mark Harrill
Address: 8742 Hwy 105 South
Boone, NC 28607
Telephone Number:
Size and Location of Property (waterbody, Highway name/number, town, etc.):
Echota, LLC Planned Unit Development located on a 118.26 acre tract on the north side of
Hwy 105; in Foscoe
Indicate Which of the following apply:
X There are waters of the U.S. on the above described property which have been accurately
flagged/delineated. We recommend that the delineated lines be surveyed. The surveyed
lines must be verified by our staff before the Corps will make a final jurisdictional
determination on your property.
The submitted survey plat dated for the above referenced property
accurately reflects the limits of waters of the U.S. on the property. Unless there is a
change in the law or our published regulations, this determination may be relied upon for
a period not to exceed 5 years from the date of this notice.
Placement of dredged or fill material in waters othe U.S. on this property without a Department
of the Army permit is in most cases a violation of Section 301 of the Clean Water Act (33 USC
1311). A permit is not required for work on the property restricted entirely to existing high
ground. It is our understanding that there will be no impacts to waters of the U.S. with
regards to Phase I of the project. However, future phases of the project will involve some
impacts to waters of the U.S., which will require notification to us with a pre-construction
notification application. If you have any questions regarding the Corps of Engineers regulatory
program, please contact:
Steve Chapin at [phone]
Project Manager Signature Date
cc: W&NR Consultants; Watauga Co. Planning & Inspections
LETTER OF TRANSMITTAL
?o
McGill
ASSOCIATES
jug, . 9 2001
222 Union Square, Suite 306 ?
?i
Post Office Box 1136 ,
Hickory, North Carolina 28601 - ?'
TELEPHONE: [phone] AX: 828-328-3870 1? C
DATE: 06/28/01 FROM: Patrick Warren, P.E.
TO: Jennifer Frye PROJECT Echota
COMPANY: NC DENR - Division of Water Quality
ADDRESS: 585 Waughtown Street Winston-Salem, NC 27107,
We are sending you:_x Attached Under separate cover
VIA FED EX the following items:
Shop Drawings x Prints
J i.1 ?. 7 211110 l
Other
,=rr
-Specifications _ Copy of Letter Change Order
NUMBER DESCRIPTION
I original & 1 copy of response letter
2 sets of plans
COMMENTS: Please review and let us know any comments. Thank you.
Engineering* P l a n n i n g . F i n a n c e
McGill Associates, P.A. • P.O. Box 1136, Hickory, NC 28603 •222 Union Square, Suite 306, Hickory, NC 28601 .828-328-2024 • FAX [phone]
Mc Gill
A S S O C I A T E S
June 26, 2001
Mr. John Dorney
Division of Water Quality
NC DENR
2321 Crabtree Blvd.
Raleigh, NC 27604-2260
Re: Response to June 1, 2001 Request for Additional Information Letter
Echota Residential Development (+/- 118 acres)
Action ID: 200130505
DWQ Project# 010630
Foscoe, Watauga County, North Carolina
Dear Mr. Dorney:
0* 6
In response to the request for additional information for the referenced project, I
respectfully submit the following information:
Item 1 & 2. See attached letter from Wetlands and Natural Resource
Consultants, Inc.
Item 3. Cross-sections, plan views, and road profiles for the road crossings
1, 2, 4, 5, 9, 10, and 12 are attached. Downstream stabilization
design drawings and calculations will be submitted to Land
Quality for erosion control approval. The remaining road
crossings will be submitted to your office 30 days prior to
construction. These locations have not been surveyed at this time,
but an estimated impact is noted on the impact data table.
Item 4. A schematic of pond No. 1 and 2 is enclosed. A portion of the
existing stream at Pond No. 1 will remain on-line around the fore
bay and extended wetland. The planting, operation, and
maintenance will be in accordance with the DWQ Best
Management Practice Manual. A copy of these is attached.
Item 5. Private driveways will be constructed to serve these lots. See
enclosed plan.
E n g i n e e r i n g 0 P l a n n i n g • F i n a n c e
McGill Associates, P.A. - P.O. Box 1136, Hickory, NC 28603 - 222 Union Square, Suite 306, Hickot7Y, NC 28601
828-328-2024 - FAX [phone]
Item 6. The trout buffer can be encroached into with a variance from the
Land Quality Section. This variance will be requested after the
erosion control permits for each phase have been obtained.
Additionally, I have eliminated or relocated two (2) of the proposed road
crossings (No. 6 & 8) See enclosed plan.
It is my professional opinion that this project exemplifies what can be
done in the North Carolina mountains without destroying the natural beauty or
habitat, while enabling the project to be economically feasible. The project will
have or has:
A. Maximum of 12% impervious area.
B. Two (2) extended wetland detention ponds.
C. Two (2) ponds with cold water drawdown.
D. Minimum stream impact with arch and span pipes at road crossings.
E. Self contained drainage basin.
F. Creek crossings at existing roadbeds.
Thank you for your attention to this matter. Please call if you have any
questions or comments.
Sincerely,
atric Warren, P.E.
McGill Associates, P.A.
xc: Mark Harrill
Chris Huysman
Tamp Bandy
Jennifer Frye
+v c-+ -- --,. - J rl'1 iV 1`V P'CL 13L»a??Sb?b
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Wetland and
i
Haturmil Rqosource
Consultantap Inc.
June 4, 2001
1
N.C. Division of Water Qp2lity
Ann; Mr. John Donley
2321 Crabtree Boulevard
Raleigh, North CuohrA 27604=2260
Re: Response to jute 1, 2001 Request for Additional Information Utter
Echota Residerntiat Development (+/- 118 acres)
Action ID: 200130505
DWQPiojecx# 010630
Foscoe,,Wntaugg Qounty, North Carolina
Deu Mr. Donley
The purpose oftiua 1Ftter is to address particular concerns and to give additional information on
requested imp*t ? +F se proposed Echota Development at the request of Ms, Jennifer Frye. We are
in receipt of die DMS letter dated June 1, 2001 and present the following responses in the aunt
order as .they were prerehted.
1) The owners purl hkoed the property with the intention. of constructing a residential housing
development. i7134 t.d 4m, is to create a community that is natural and environmenm4y. pletuing.
Historically, thi iproponeru proposed two lalms,at the location of the proposed wetlands and additional
impacts stem" from 4 more compla road infrastructure The ponds were proposed to. enhance
this `natural" e'fkO. "The pwrw recognized the complexity and environmental sensitivity with respect
t to this development VIA' ROqueeted consultation. from. WedwW and N•atwal Resource Consultants, Inc.
es sly in the devr1opinerat process, When. the project was fast evaluated with respect 'to environmental
impacts, it pro:osstd foatt additional road crossings, greater impervious vex, and 2.S to 3 acres of
surface venter islets, All forms of environmental impacts have been reduced in scope to accommodate
environmeenw iuueo. Tht s:onctruction of these. amenities requires that the 40,1 WW be issued for
access to the d"*ptnent site and for the installation of the surface water ponds. Additionally, the
local sediment ><tsd er0siion control permits are conditional upon receipt of the WQC.
2) The own;; d Ona'ta, access high ground to achieve his intended goal. The application requests
l impach that would ttorpioiliy be ,approved to access developmenr areas. Project infrutxucturs (all road.
crossings) otigirsally 44lixel i pipe as. opposed, to spans, Once the developer realized that nearly
insurmountable ,tpitj ei requiretnen" would. Ultely be required by the NCDWQ, he priced arch
spars, for every 6*sa 'in order to avoid the necessity of notifying forPiping imPacts ARer a cost
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p prepare by the project engineer,. it was determined that a combination of piping rued
Newtdn O*e
11 South College Avle,, Suite 203
PO Box 224
Newton, NC 28658
828-466-3035
828-465+3050 Fox
vmw cacol.com
N46010 0*0
lar Street
PO Box 553
Hazelwood. NC 28738
828.*464 ,-5033
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spans is the moot economically feasible alternative that fully complied with written law and Internal
DWQgitldance. The number of channel crossings and the amouiu of channel impacts has been
minimized to the maximum extent possible due to encumbrances related to site topography and
channel locations..
Impacts for the road crossings and the proposed ponds and wetland detention basins are minimized
and compensated for the following reasons:
1. Language within the Federal Register states that project redesign is itself a form of
minimization end mitigation.
Z The in&uttucture utilizes Busting road crossings and previously impacted areas for new
structures.
3. Creation of additional surface waters increases aquatic habitat.
4. The removal of p9tential pollutants (sediment and nutrients) from waters entering the
Watauga River 1r d iieved through the use of created wetlands.
S. Thermal amp4t concerns of the WRC are addressed by anavation at the lower portion of the
pond to allaMt for a deeper cool water discharge from the pond.
3) With respect to cospcmrns with the proposed spanned road crossings, it is shut understanding that
activities that occult ab? the mean high water level are not regulated under the X104 process and
consequently the 40t testtflcation process. However, we are sensitive to the stability issues that have
been identified in uqp lot letter, In order to address this concern, fabric can be placed on the
sides of the l bald in place with rip-rap once the vegetation has been.removed, the banks
have been laid back to 2a grad'eat, and the arch spans have been installed.
4} Although the.po do M Apt required under the state 401.Water Q,pality Certification or o#her.loci
regulations, the 4ft*pe . wishes. to install the 'surface water features as an aeatheticsf and
environmental aims tY fot tfie_development. There were no objections to the proposed itutallation of
the upper pored from ct representatives of NCWRC'or NCDWQ,Auring the life meetings. Ms.
Fr,expressted patpcylar concerns with respect to the installation of the lower surface water pond as
related to the eo afie?n, Letter submitted-by Mr. Linville with the NCWRC. The applicant has
explored the poaibtitisX of relocating the channel for the purpose of constructing an offline pond.
The relocation .has been ds;tstrmined to be not fesuible for the fo)lowing reasons:
1. The c>iaiei design w;11 result in trout buffers required by sediment and erosion control rules
and D1?VQtrestn telocption / mitigation, guidelines that will result in a minimum belt-width
of 65 fat Thin hselt-?vidth.vrould be oRsct from the adjacent: properties and greatly reduce the
desired surfacb ,viistt r,•uea and the desired storm water detention.
2. The intent to :creah`a fully functional environmental amenity will be compromised when
bypauing tl* potsd,
3. Preliminary chusrl relocation designs are encumbered with respect to property fine issues,
chatvul beef ens, and channel bank stability isyueo.
Off--line ponds do not,provide floodwater sitorage functions and can lead to a losing charuuel system in
I
the mountain rrcntr?t s, 'hp q twp.futocs alone lead to the conclusion that o? fine systems are not
going to icchie?e the daairi?d effect of improving the quality of water exiting the site to the Watauga
River Admittedly; there arc chsuugesi in. the aquatic habitat when channels are flooded- Tio?ev?er, the
impounded watO NA the ability to increase water quality functions associated with Eloodwato
detention and sbUds`removal and increase the total amount of aquatic habitat.
r
r,
i
JUN-15-01 04 :2! P1,1 WNRC 8204653050 P.04
The environmentO amenities impacts are assessed to be minimal for the following-reaswu:
1. Existing wooded buffers will remain adjacent to the surface waters.
2. A large section of the existing channel to be flooded, although assessed robe perennial, ranks
relatively low on the DW(_channel evaluation form with respect to channel morphology and
aquatic habitat and already lacks riparian canopy shading.
3. The existing absence of trout or trout migration through the site was confirmed by the WRC.
It is our understanding that minimization and mitigation requirements have been achieved for the
project through project size, reduction, strategic road crossing placement, the creation of additional
wetlands and waters, and the detention and treatment of stormwater flows. We look forward to
hearing from you. Please feel free to call with questions or for additional information-
Best Reguds,
/ A
Tsmp Bandy
JUN-25-01 64:21 PM WNRC 8284653050 P.05
ECHOTA,BOONE
WATAUGA COUNTY, NORTH CAROLINA
WNRC, inc. Project M FR-1001
IMPACT DATA TABLE
NATIONWIDE 39 IlNPS Z f o C %.V takt .5 2, t v- R. 41, &N -6bUtG 5
Original_ Re reed mitigative.
Road Crossing 1/Bann: 300 LF 500 LF Minimized Impact
Road Crossing 2/Benn: 50 LF 82 LF Utilize Headwalls
Envirorunental Amenity 1
(Berms and Weirs) 22 LF 22 LF Stormwater Wetlands
(Flooding)
(Wedand Impacts) eat. 512 LF eat. 512 LF Surface Water Aquatic Habitat
eat 0.05 Ac eat, 0.05 Ac Est, 0.5 Acre Vegetated. Wetland Creation
Environmental Amenity 2
(Berms and Weirs) 24 LF 24 LF Stormwater Wetlands
(Flooding) est. 800 LF est. 800 LF Surfaeo Water Aquatic Habitat
(Wetland Impacts) est 0.02 Ac est. 0.02 Ac Eat. 0.4 Acre Vegetated. Wetland Creation
Toni Fill impacts: Channel 126 LF 178 LF
Wetland 0.07 Ae 0.07 Ac
NATIONWIDE 14 IMPACT5
Original- Revised Mitigative
Raau at Riques 'on
Road Crossing 3: 65 LF NTE 55 LF Utilize Approx 12 LF of existing logging road bed,
headwalls, below grade culvert placement to allow

Road Crossing 4:
65 LF
35 LF for non-existing passage of aquatic life
Utilize Approx 12 LF of existing logging road bed,
headwalls, below grade culvert placement to allow
for non-existing passage of aquatic life
Road Crossing 5: 65 LF 30 LF Utilize Approx 12 LF of existing logging road bed,
headwalls, below grade culvert placement to allow
for non-existing passage of aquatic life
Road Crossing 6: Relocated / Removed from site plan
Road Crossing 7: 0 LF (span) 0 LF (span) Utilize Arch Span
Road Crossing 8. Relocated / Removed from site plan
Road Crossing 9: 0 LF (span) 0 LF (span) Utilize Arch Span
Road Crossing 10: 0 LF (span) 0 LF (span) Utilizo Arch Span
Road Crossing 11: 65 LF NTE 50 LF Utlize Head Walls, below grade culvert placement
to allow for non-existing passage of aquatic life
Road Crossing 12: 65 LF 55 LF Utilize Approx 12 LF of existing logging road bed.
headwalls, below grade culvert placement to allow
for non-existing passage of aquatic life
Total Channel: 325 LF
t`IOTIc. Rim No. 3
w ITJ+ RDc
R . D.C. N o. 7
w t-rtk R, V, 4
225 LF
Xaim bined Cbannel Width Requested 10 Feet Under NW 14)
' j ( w t C. c. g, S t tr-tic. I.? 47 tJ
N ° ?, ?, t 2 , G olu sm u C-T'? a?
?tt~c. t3? 41wf/G
/ 412 / N C! Z*z. V LTA d?J
Echota
Wetland Design
Pond # 1
Drainage Area = 120 ac.
Soil Group B
Runoff Curve Number:
A. Roads, Houses 14.4 ac.
B. Open Area 105.0 ac.
Design Storm= 1"
Runoff From Design Storm / CN:
A. S=(1000/95)-10=0.53
R/O = (1" - 0.2 (0.53))2 / (1" + 0.8 (0.53))
R/O = 0.56 in.
B. S = (1000/60) - 10 = 6.7
R/O=(1"-0.2(6.7))2/(1"+0.8(6.7))
R/O = 0.018 in.
Treatment Volume:
A. 0.56 in. x 14.4 ac. = 8.1 ac-in
B. 0.018 in. x 105.6 ac. = 1.90 ac-in
Total Volume = 9.9 ac-in
= 35,937 cu-ft
Area = 35,937 cu-ft = 23,958 ft.'
1.5 ft. depth
Dimensions : 175'x 140'x 1.5'
Weir Drawdown
Q=CwLH3/2
Q = 0.6 (0.5 ft.) (0.75 ft.)l.s
= 0.2 cfs.
Time= 35,937 cu. ft. second I hr
0.2 cu. ft. 1 3600 sec.
= 51.2 hr. = 2.1 days
Fore Bay
25% of Wetland Volume Req'd
0.25 x 35,937 cu. ft. = 8,984 cu-ft.
Pond # 2
Drainage Area = 90 ac.
Soil Group B
Runoff Curve Number:
A. Roads, Houses 10.8 ac.
C. Open Area 79.2 ac.
Design Storm= 1"
Runoff From Design Storm / CN:
C. S=(1000/95)-10=0.53
R/O = (1" - 0.2 (0.53))2 / (1" + 0.8 (0.53))
R/O = 0.56 in.
D. S = (1000/60) - 10 = 6.7
R/O = (1" - 0.2 (6.7))2 / (1" +0.8(6.7))
R/O = 0.018 in.
Treatment Volume:
C. 0.56 in. x 10.8 ac. = 6.0 ac-in
D. 0.018 in. x 79.2 ac. = 1.40 ac-in
Total Volume = 7.4 ac-in
= 28,862 cu-ft
Area = 28,862 cu-ft = 17,908 ft.'
1.5 ft. depth
Dimensions : 170'x 105'x 1.5'
Weir Drawdown
Q=CwLH3/2
Q = 0.6 (0.5 ft.) (0.75 ft.)'s
= 0.2 cfs.
Time= 26,862 cu. ft. I second ( hr
0.2 cu. ft. 1 3600 sec.
= 51.2 hr. = 2.1 days
Fore Bay
25% of Wetland Volume Req'd
0.25 x 26,862 cu. ft. = 6,716 cu-ft.
Echota
Creek Crossings Pipe Analysis
Drainage Round Arch Half Pipe
Crossing Area, ac Q2s, cfs. Pipe, in. Pipe, in. Span, in.
RC 3 8.6 21.6 30 57 x 38 36
RC 4 6.2 15.6 30 57 x 38 36
RC 5 13.6 29.4 36 64 x 43 36
RC 6 12.8 27.7 36 64 x 43 36
RC 7 11.5 25.3 36 64 x 43 36
RC 8 10.2 22.8 30 57 x 38 36
RC 9 13.3 28.7 36 64 x 43 36
RC 10 12.0 25.9 36 64 x 43 36
RC 11 9.7 22.3 30 57 x38 36
RC 12 19.2 41.5 36 64 x 43 48
Cost Analysis
A. Round Pipe w/o burying bottom
36" --+ $50.00 / ft. installed
TYP Crossing @ 50 ft. -+ $2,500.00
B. Arch Pipe w/ buried bottom
64" x 43" --+ $75.00/ ft. installed
TYP Crossing @ 50 ft. -> $3,750.00
C. Span w/ footing
36" --+ $150.00 / ft. installed
TYP Crossing @ 50 ft. -+ $7,500.00
D. Engineering & Surveying
$2,500.00 + /Crossing
@McGiff PROJECT: ?G?'PROJECT NO.:
A 3 9 0 C I A T 8 3
ENGINEERING • PLANNING • FINANCE DESCRIPTION: KOA D C LV'5`?(N( a
Engineering Planning Finance CALCULATED BY: y ?w CHECKED BY:
J PL.??
McGill Associares, Y.A. • P.O. Bn.r 2259, Asheville, NC 28802
55 Broad sneer, Asheville, NC 28801 • 828-252-0575 • Fax [phone] DATE: ?P?w?O I SHEET NO. OF _
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88 STEEL DRAINAGE AND HIGHWAY CONSTRUCTION PRODUCTS
Corrugated steel box culverts approach the rectangular shape of a low wide
box. This is made possible by the addition of special reinforcing elements to
standard structural plates. The resulting combined section develops the
flexural capacity required by the extreme geometry.
The foundation for box culverts can be designed a conventional concrete
footin steel footing pads, or a full steel invert.
Corr gated steel box culverts are designed for low, wide waterway require-
ments with heights of cover between 1.4 and 5 ft and H-20 loadings.
Minimum cover requirements are approximately one-tenth of the span while
the maximum cover is 5 ft.
Box culverts are available in spans of 9ft. 2 in. to 25 ft. 4 in. with rises of
2 ft. 6 in. to 10 ft. 6 in. Table 2.34 provides prepresentative sizes available.
Because of variations between manufacturers, the table represents minimum
flow areas, maximum rise and the mean (± 5%) span dimensions. Special
sizes are also available.
CORRUGATED STEEL BOX CULVERTS
Table 2.34 Structural Plate Box Culvert Sizes and End Area
6 x 2 in. Corrugations-Bolted Seams
Vi C:'A D
?IOP g ?! O
No Span
I ft. in. Rise
ft.-in . Area
(sq, ft,) No Span
ft.-in. Rise
ft.-in. Area
(sq, ft,) No Span
ft: in. Rise Area
ft.-in. (sq, ft,)
1 9.2 2-6 18.4 12 10-10 3-5 30.8 23 9-6 4-1 31.1
g-
PO-L
13
15-4
3-5
43.3
24
14-10
4-1 51.3
3 10-6 2-8 22.6 14 , 11-6 3-6 33.2 x-25 10-7 ' 4-2 ' 35.9
15 16-0 3-6 46.2 26 15-7 4-2 55.6
5 11-10 2-10 27.8 16 12-2 3-8 37.2 27 18-9 4-2 62.2
6 12-9 2-11 30.6 17 16-8 3-8 50.7 28 11-2 4-3 394
7 13-2 3-1 i 33.5 18 12-10 3-9 39.7 29 19-5 4-3 66.0
8 14-1 -
3-2? 36.6 19 13-6 3-10 44.0 30 i 11-9 4-4 42.4
9 14-6 3-3 39.0 20 17-6 3-10 54.0 31 16-3 4-4 1 59.5
1 10 1 9-0 3-4 24.2 21 14 4 4-0 47.8 32 12-6 ! 4-5 46.9
11 10-1 3-4 27.7 22 18-2 4-0 58.8 1 33 13-3 4-6 I 49-4
PRODUCT DETAILS
89
Table 2.34 (Continued) Structural Plate Box Culvert Sizes and End Area
6 x 2 in. Corrugations - Bolted Seams

No. Span

ft: in. Rise

ft.-in. Area

(sq. ft.) No Span

ft.-in. Rise

ft.-in. Area

(sq. ft,) No
Span
ft.-in.
Rise
ft.-in.
Area
(sq, ft,)
34 16-10 4-6 64.1 77 20-11 6-2 105.5 120 14-4 7-8 91.0
35 20-0 4-6 70.8
' 78 24-10 6-2 119.0 121 17-6 1 7-8 119.0
36 17-9 4-7__
-7 r__67_27
67.2 79 , 14-4 6-3 76.6 122 20-0 7-8 127.1
37 20 B 4-7 74.7 80 18-0 6-3 96.9 123 21-2 7-8 134.8
38 13-9 4-8 54
8 81 10-10 6-4 53.8 124 23-6 7-8 150.6
39 14-7 4-9 .
59.1 82 15-1 6-4 82.5 125 15-0 7-9 99.4
40 18-4 4-9 73.1 83 18-4 6-4 101.9 126 25-4 7-9 161.3
41 10-0 4-11 1
39 84 11-9 6-5 61.2 1'27 18-3 7-10 125.5
42 11-0 4-11 .
44.2 85 15-6 6-6 87.1 128 15-8 7-11 106.8
43 15-0 4-11 63.2 86 19-2 6-6 106.6 129 18-10 7-11 132.1
44 19-2 4-11 78
2 87 20-2 6-6 1092 130 20-10 7-11 143.3
45 21-6 4-11 .
83.8 88 22-5 6-6 118.4 131 16-0 8-1 111.8
46 11-8 5-0 48
2 89 24.4 6-6 127.2 132 19.3 8-1 135.9
47 15-10 5-0 .
68.1 90 12-5 6-7 66.4 133 20-11 8-1 141.2
48 12-5 5-1 52
5 91 163 6-7 93.5 134 22.10 8-1 153.7
49 19-8 5-1 .
82.3 92 13.1 6-8 72.3 135 16-8 8-2 119.6
50 12.10 5-2 56.6 93 19-8 6-8 113.3 136 24-6 8-2 166.2
51 16-4 5-2 72.2 94 1 13-6 6-9 76.9 137 16-10 8-3 124.4
52 17-2 5-3 77.6 95 16-10 6-9 98.3 138 20-2 8-3 146.2
53 20-8 5-3 88
4 96 17-5 6-10 105.1 139 17-1 &3 125.8
54 13-8 5-4 .
60
8 97 21-3 6-10 121.7 140 20-4 8-5 142.6
55 22.8 5-4 .
95.0 98 14-2 6-11 83.1 141 21-10 8-5 155.7
56 14-0 5-5 65.6 99 19-7 6-11 111.9 142 17-8 8-6 133.0
57 18-0 5-5 82.2 100 23-5 6-11 132.1 143 23-8 8-6 169.3
58 21-2 5-5 94.1 101 14.8 7-0 88.4 144 18.4 8-7 139.9
59 11-0 5-7 47
9 102 18.1 7-0 111.1 145 21-2 8-7 160.7
60 14.10 5-7 .
70.7 103 21-2 7.0 127.4 146 25-4 8-7 182-4
61 18 4 5-7 87.9 104 25-4 7-0 142.2 147 18-11 8-9 147.0
62 11-5 5-8 52.6 105 15-5 7-1 94.5 148 21-3 8-10 157.6
63 15-5 5-8 75.1 106 11-4 7-2 63.0 149 23-0 8-10 171.6
64 19-3 5-8 93.3 107 18-9 7-2 117.3 150 19-4 8-11 152.1
65 22-2 5-8 101.0 108 12-3 7-3 71.2 151 24-6 8-11 185.7
66 12-0 5-9 57
2 109 15-8 7-3 98.7 152 20-0 9-1 161.6
67 16-0 5-10 .
80.7 110 20-7 7-3 125.0 153 21.10 9-3 173.3
68 19-10 5-10 97.2 111 22-7 73 135.9 154 23-10 9-3 188.1
69 23-9 5-10 108.2 112 12-10 7-4 76.0 155 21-3 9-5 177.4
70 12-10 5-11 62.3 113 19-1 7-4 121.5 156 254 9-5 202.9
71 16-8 5-11 84
7 114 24-5 74 1463 157 23-2 9-8 189.8
72 13-2 6-0 .
66.6 115 134 7-5 80.4 158 24-8 9-9 205.3
73 14-0 6-1 72.1 116 16-6 7-5 106.5 159 24-0 10-1 207
74 17-2 6-1 91.3 117 16-10 7-6 111.5 160 25-5 10-2 222.7
75 19-2 6-1 97.1 118 19-10 7-6 129.8 161 24-9 10-6 225
76 23-4 6-1 113.7 119 14-0 7-7 88.4
Span
f'Otcl R S A Fn R E::B?A Y
1.5 Operation and Maintenance
A study of Maryland basins found that, in general, people had more favorable impressions of wet detention
basins, were less likely to throw litter in them, and were more likely to clean and perform routine maintenance on
these basins when they were provided a prominent position in the development (Maryland DNR, 1986). No two
basins are the same, but every basin will require maintenance at some point, and their maintenance needs will
vary with the size, type of watershed, location, etc. Designation of a responsible party and routine maintenance
are vital to the proper operation of the wet detention basin (Schueler, 1987, pp. 4.13-4.17; Maryland DNR, 1986).
Adequate funding is one of the most important factors in a successful operation and maintenance program
(Maryland DNR, 1986).
Estimated annual operation and maintenance (O&M) costs for wet detention basins of 5% of construction costs
were found in a survey conducted by the State of Maryland on their wet detention basins (Maryland DNR, 1986,
pg. 37). In addition the NURP study in Washington, D.C. estimated O&M costs to be 5% of construction costs
(Metropolitan Washington COG, 1983, Chapter 3).
The maintenance needs of any particular wet pond are highly dependent on the condition of the watershed that
contributes runoff to the pond. Maintenance should always include minimizing erosion problems and pollutant
export to the pond from the contributing watershed. A permanent easement must be provided to assure easy
access for maintenance: Care should be taken to secure all appropriate legal agreements for the easement. A
benchmark for sediment removal should be established to assure adequate storage for water quality and flood
control functions.
Again, one must remember that while general maintenance tasks are identified here, actual needs will vary from
site to site. In general, plans must indicate what operation and maintenance actions are needed, what criteria will
be used to determine when these actions are necessary, and who is responsible for these actions. Examples of
items that should be included in an operation and maintenance plan include, but are not limited to the following:
• Debris and litter control checks for inlet, outlet and orifice obstruction after every storm producing runoff.
• Provisions for routine vegetation managementimowing and a schedule for these activities.
• Checks every 6 months, or more frequently, for:
- sediment buildup and the need for removal,
erosion along the bank and the need for reseeding or stabilization and, if reseeding is
necessary, a reseeding schedule,
- erosion at the inlet and outlet and methods of stabilization,
- seepage through the dam, and
- operation of any valves or mechanical components.
• Agreement signed and notarized by the responsible party to perform the tasks specified in the plan,
including inspections, operation, and any needed maintenance activities.
1.6 Inspections
Annual or more frequent inspections by the land owner or pond operator are strongly encouraged to ensure the
proper operation of a wet detention pond. Local governments can require more frequent inspections, and all
local codes should be consulted.
At a minimum an inspection should include and address the following.
• obstructions of the inlet and outlet devices by trash and debris,
• excessive erosion or sedimentation in or around the basin,
• cracking or settling of the dam,
• deterioration of inlet or outlet pipes,
• condition of the emergency spillway,
• stability of side-slopes,
• up and downstream channel conditions, and
• woody vegetation in or on the dam
E XTs NDIj ?,, D `'Y9: 7 GA,IJP 5
2.8 Maintenance
Pocket wetlands that have no sediment pretreatment will tend to accumulate sediment very rapidly and therefore
will need cleanout when they accumulate six inches of deposition, which in most cases will take 5 to 10 years.
An on-site sediment disposal area should be seriously considered for any pocket wetland, and should be sized to
receive three clemout cycles.
Due to their small size, pocket wetlands can be mucked out with a portable mudcat or backhoe. The top few
inches of sediment should be stockpiled, so that is can be replaced over the surface of the wetland after the
completion of sediment removal to reestablish through its own seedbank.
Maintenance Requirements are as follows:
• Pocket Wetlands will tend to collect debris, and it should be removed whenever it accumulates, or at least
twice annually.
• Wetlands should be inspected annually after a rain event to ensure that the basin is operating as designed.
• At a minimum, items that should be included in the inspection and corrected are:
- clogging of the outlet or too.rapid a release,
- erosion on the banks,
- erosion at the inlet and outlet,
- sediment accumulation and the need for removal,
- condition of the emergency spillway, and
- woody vegetation in the embankment.
Table 2.2 Wetland Plants
Sckatjfic Name. Cowmercial Inundation Wildlife Value Notes
Commo Nawe Form Availability Tolerance
Pellandra virginia Emergent yes up 10 1 ft. High, Berries are Full sun to partial shade
Arrow arum eaten b wood ducks
Saggitaria latUblia Emergent yes up to 1 ft. Moderate. Tubers and Aggressive colonizer
Arrowhead/ Duck otato . seeds eaten b ducks
Andropogon virginicus Perimeter yes up to 3 in. High. Songbirds and Tolerant of fluctuating water
Broomsedge browsers. Winter food levels & partial shade
and cover
Andropogon glomeratus Emergent yes up to 1 fL Requires full sun
Bush Beard ass
TyPharPP Emergent yes up to J fl. Low. Except as cover Aggressive. May eliminate
Cattail other species. Volunteer.

Ceratophyllum DWQersum
Submergenl
yes
yes
Low food value. Good Hi Pollutant treatment.
Free Floating SAV. Shade
Cooritail habitat and shelter for tolerant. Rapid growth.
fish and invertebrates
Scirpus pungerrs Emergent yes up to 6 in. High. Seeds, cover. Fast colonizer. Can tolerate
Common Three-Square Waterfowl, songbirds
periods of dryness. Full
sun. High metal removal.
,Umna sPP• Submergent/ yes yes High, Food for High metal removal
Duckweed Emergent waterfowl, and fish
Saururas cernuus Emergent yes up to 1 ft. Low, except for wood Rapid growth. Shade
Lizard's Tail ducks tolerant.
Hibiscus moschewos Emergent yes . up to 3 in. Low. Nectar. Full sun. Can tolerate
Marsh Hibiscus periodic ass
Pontederia cordaia Emergent yes up to 1 fL Moderate. Ducks. Full sun to partial shade
Pickerelwecd Nectar for butterflies.
Poiamogewn pectimius Submergent yes yes Extremely high. Removes heavy metals.
Pond Weed Waterfowl, marsh and
shorebirds.
Leersia oryzoides Emergent yes up to 3 in, High, Food and cover. Full sun although tolerant of
Rice cut s shade. Provides some
shoreline stabilization
CitrexsPP• Emergent yes up to 3 in. High, Waterfowl and Many wetland and several
Sed s songbirds. u landspecies.
Scirpus validus Emergent yes up to 1 ft. Moderate. Good cover Full sun. Aggressive weedy
Soft-stem Bulrush and food. aliens such as P. rfoliatum
Polygonnum spp. Emergent yes up to I ft. High. Waterfowl, Fast colonizer. Tolerant of
Smartweed songbirds. Seeds and fluctuating water levels.
cover.
Juncos effesus
Emergent
yes
up to.1 ft.
Moderate.
Tolerates wet or dry
Soft Rush conditions.
Nuphar luteum Emergent yes up to 3 ft. Moderate for food but Fast colonizer. Tolerant of
S auerdock hi for cover. fluctuating water levels.
Panicum vergatunt Petimeter yes up to 3 in. High. Seeds, cover for Tolerates wet and dry
Switchgrass waterfowl and conditions.
songbirds.
Acorus calamus Perimeter yes up to 3 in. Low. Tolerant of dry periods. Not
Sweet flag a rapid colonizer. Tolerates
acidic conditions
Elodea canadensis Submergent yes yes Low. Good water oxygenator.
W aterwecd
High nutrient, copper,
manganese and chromium
removal.
Val sneria americana Submergent yes yes High. Food for Tolerant of murky water and
Wild Celery waterfowl. Habitat for high nutrient loads.
fish and invertebrates.
Zizania aquatics Emergent yes up to I ft. High. Food for birds. Prefers full sun.
Wild Rice
Table from: Desian of Storm aLer WedQg§ Systems: guidelines fQr creating diverse jWd effectivE storjUwjEcr wed&Qds in the mid Atlantic
e io Schueler
11Server\datalPROJECT5100 852 E~hotalDrawingslPrePlatB.dwg Fri Apr 20 96:35:37 2001
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JOB NO.: 00852 A Planned Unit Development 222 UNION SQUARE • HICKORY, NC
DATE: Nov. 20000
SCALE: 1" .100' for ~'Q' •F sio , _ -PH. [phone] a EAL~+~:9 ' FAX [phone]
REVISION:
19380 CGII~chOta, LLCM S S O C I A T E
-Ti rn S'Ite Plan
rn
DRAWING NAME: ENGINEERING • PLANNING • FINANCi
~i PrePlat6 Foscoe, North Carolina