20131070 Ver 2_More Info Received_20150406

DavidFRamsey,PE - PSM
R &S Engineering and Construction Corporation
434 Skinner Boulevard
Dunedin, F134698
61 The Glens Boulevard
Banner Elk, NC 28604
webpage: www.ramsevengineering.com
727 409 -4639 e-mail davidf.ramsey(&verizon.net 828 963 -5875
Professional Engineer Ohio - Florida -N Carolina -S Carolina - Georgia- Louisiana - Mississippi
Professional Surveyor Ohio- Florida -N Carolina
General Contractor Class A Florida CGC 010310 North Carolina 44555
March 25, 2015
,Ms. Karen Higgins
401 and Buffer Permitting Unit
1617 Mail Service Center
Raleigh, NC 27699 -1617
RE: Elk Creek of Banner Elk
DWR# )& 1070
Dear Ms. Higgins:
Please reply to North Carolina Address
Uu �/5ZL
APR 0 62015 10)
In accordance with your letter dated March 16, 2015 enclosed you will find four (4) copies of the PCN with
attachments.
During the my review process I discovered an error in the tabulation of the impervious area in Drainage Area
Number 3 which is shown on Sheet 6 of 9. The previous tabulation read a total of 55,262.52 square feet when it
should read 42,632.63 square feet. The totals have been corrected on Sheet 6 and 9 and have been clouded for
clarification.
Attached you will find a three (3) revised copies of sheet 6 of 9 and three (3) revised copies of sheet 9 of 9.
Please substitute those sheets into the plans I sent you previously. In addition one (1) additional set of plans
with the corrections are attached to comply with your letter.
The attachment materials have been modified to meet the correction in the tabulation of the impervious area for
Drainage Area number 3. All information should be corrected
Please review and if you have any additional information needed please do not hesitate to call or email.

Page 2: Elk
Creek/March 25,
2015
Sincerely,
I "C'W o(��,,���,
,, � ;• ©r R .fir%
David F Ramsey, PE, PSM
General Contractor
Copy: G. Landon Davidson with one set of prints for the project and one set of the Stormwater
Management Permit Application.

DWQ USE ONLY
Date Received
Fee Paid
Permit Number
Applicable Rules ❑ Coastal SW -1995 ❑ Coastal SW - 2008 ❑ Ph II - Post Construction
(select all that apply) ❑ Non - Coastal SW- HQW /ORW Waters ❑ Universal Stormwater Management Plan
❑ Other WQ Mgmt Plan
State of North Carolina
Department of Environment and Natural Resources o
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION D
APR o s zo�5 ! �
This form may be photocopied for use as an onginal
I. GENERAL INFORMATION
1 Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc ).
Elk Creek at Banner Elk
2 Location of Project (street address)
Ells Creek
City Banner Elk County Avery Zip 28604
3 Directions to project (from nearest major intersection).
Traffic Light .m Banner Elk at interesectin of SR 194 and SR 184 Follow SR 174 approximately 1/4 Mile to
Hardee's Lane Follow Hardee's Lane approximately 100 feet Elk Creek Drive will be on the right
4 Latitude-36° 08' 54" N Longitude 81° 51' 48" W of the main entrance to the project
II. PERMIT INFORMATION:
1 a Specify whether project is (check one) ®New ❑Modification ❑ Renewal w/ Modificationt
tRenewals with modifications also requires SWU -102 - Renewal Application Form
b If this application is being submitted as the result of a modification to an existing permit, list the existing
permit number , its issue date (if known) , and the status of
construction F-1 Not Started ❑Partially Completed* ❑ Completed* *provide a designer's certification
2 Specify the type of project (check one)
❑Low Density ®High Density ❑Drams to an Offsite Stormwater System ❑Other
3 If this application is being submitted as the result of a previously returned application or a letter from DWQ
requesting a state stormwater management permit application, list the stormwater project number, if
assigned, and the previous name of the project, if different than currently
proposed,
4 a Additional Project Requirements (check applicable blanks, information on required state permits can be
obtained by contacting the Customer Service Center at 1- 877 - 623 -6748)
❑CAMA Major ®Sedimentation /Erosion Control ac of Disturbed Area
❑NPDES Industrial Stormwater ®404/401 Permit Proposed Impacts 4194 SF to be filled
b If any of these permits have already been acquired please provide the Project Name, Project/ Permit Number,
issue date and the type of each permit
Is the project located within 5 miles of a public airport? ENO ❑Yes
If yes, see S L 2012 -200, Part Vh http / /portal ncdeni oi,,-liveb /wq/��s /gct /�,tatesw/i ales Io�� �

III. CONTACT INFORMATION
1 a Print Applicant / Sign-mg Official's name and title (specifically the developer, property owner, lessee,
designated government official, individual, etc who owns the project)
Apphcant /Organization Elk Creek Development Company of Banner Elk LLC
Signing Official & Title David F Ramsey Professional Engineer and Agent
b Contact information for person listed in item 1a above-
Street Address 61 The Glens Boulevard
City Banner Elk
Madmg Address (if applicable) Same
City
State NC
State
Phone (727 ) 409 -4639 Fax (None )_
Email
Zip 28604
Zip
c Please check the appropriate box The applicant hsted above is
® The property owner (Skip to Contact Information, item 3a)
❑ Lessee* (Attach a copy of the lease agreement and complete Contact Information, item 2a and 2b below)
❑ Purchaser* (Attach a copy of the pending sales agreement and complete Contact Information, item 2a and
2b below)
❑ Developer* (Complete Contact Information, item 2a and 2b below)
2 a Print Property Owner's name and title below, if you are the lessee, purchaser or developer. (This is the
person who owns the property that the project is located on)
Property Owner/ Organization
Signing Official & Title
b Contact information for person listed m item 2a above
Street Address
City
Mailing Address (if applicable)
City
Phone ( )
Email
State
State
Fax
Zip
Zip
3 a (Optional) Print the name and title of another contact such as the project's construction supervisor or other
person who can answer questions about the project
Other Contact Person / Organization R &S Engineering and Construction Corporation
Signing Official & Title David F Ramsey President and Professional Engineer 13448
b Contact information for person hsted in item 3a above
Mailing Address 61 The Glens Boulevard
City Banner Elk State NC Zip-28604
Phone (727 ) 409 -4639 Fax (None
Email davidf ramsey@verizon net
4 Local jurisdiction for building permits- Avery County
Pomt of Contact:Tom Burleson Phone # [phone]

IV. PROJECT INFORMATION
1 In the space provided below, briefly summarize how the stormwater runoff will be treated
All runoff is directed to a wet retention area and discharge over a 2 -5 day period
2 a If claiming vested rights, identify the supporting documents provided and the date they were approved
❑ Approval of a Site Specific Development Plan or PUD Approval Date
❑ Valid Building Permit Issued Date
❑ Other Date
b If claiming vested rights, identify the regulation(s) the project has been designed in accordance with
❑ Coastal SW -1995 ❑ Ph II - Post Construction
3 Stormwater runoff from this project drams to the Elk River basin
4 Total Property Area 11 acres 5 Total Coastal Wetlands Area 0 acres
6. Total Surface Water Area 8 0 acres
7 Total Property Area (4) - Total Coastal Wetlands Area (5) - Total Surface Water Area (6) = Total Project
Area+ 8 0 acres
+ Total project area shall be calculated to exclude the following the normal pool of impounded structures, the area
between the banks of streams and rivers, the area below the Normal High Water (NHW) line or Mean High Water
(MHW) line, and coastal wetlands landward from the NHW (or MHW) line The resultant project area is used to
calculate overall percent built upon area (BUA) Non - coastal wetlands landward of the NHW (or MHW) line rnay
be included in the total project area
8 Project percent of impervious area. (Total Impervious Area / Total Project Area) X 100 = 38 73 %
9 How many drainage areas does the project have ?1 (For high density, count 1 for each proposed engineered
stormwater BMP. For low densihj and other projects, use 1 for the whole properly/ area)
10 Complete the following information for each drainage area identified in Project Information item 9 If there
are more than four drainage areas in the project, attach an additional sheet with the information for each area
provided in the same format as below
Basin Information
Drainage Area
Drainage Area _
Drainage Area _
Drainage Area _
Receiving Stream Name
Elk River
Stream Class *
C
Stream Index Number *
8 -22(1)
Total Drainage Area (sf)
348,480
On -site Drainage Area (so
348,480
Off -site Drainage Area (sf)
0
Proposed Impervious Area ** (so
134,950
% Impervious Area ** (total)
3873
Impervious— Surface Area
Drama e Area
Drainage Area _
Drama e Area _
Drainage Area _
On -site Buildings /Lots (sf)
37,168 77
On -site Streets (so
26,128.63
On -site Parking (so
58,099 54
On -site Sidewalks (so
13,553 96
Other on -site (so
0
Future (so
0
Off -site (so
0
Existing BUA * ** (sf)
Total (so
134950 90
Stream Class and Index Number can be determined at. Ittt L / Iortal nnlenr or s wt_b r('gL1' �u /cln„rf�cat�or�,
Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc

'Report only that amount of existing B LIA that will remain after development Do not report any existing BUA that
is to be removed and which will be replaced by new BLIA
11 How was the off -site impervious area listed above determined? Provide documentation
Projects in Union County: Contact DCVO Central Office stcff to check if the project is located within a Threatened &
Endangered Species watershed that may be subject to more stringent stormwater requirements as per 15A NCAC 02B 0600
V. SUPPLEMENT AND O &M FORMS
The applicable state stormwater management permit supplement and operation and maintenance (O &M) forms
must be submitted for each BMP specified for this project The latest versions of the forms can be downloaded
fromllttlpoital 11cdcni oil /web /wc /��s /su /bu1f�- niuwal
VI. SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ).
A complete package includes all of the items listed below. A detailed application instruction sheet and BMP
checklists are available from http / / Poi talncden, oig/ veb /v- vq /ws /su /statesw /toims does. The complete
application package should be submitted to the appropriate DWQ Office. (The appropiiate office may be
found by locating project on the interactive online map at htt�/Jpoi tai ncdeni of /web / wq /tivs /�n / maw )
Please indicate that the following required information have been provided by initialing in the space provided
for each item All original documents MUST be signed and initialed in blue ink Download the latest versions
for each submitted application package from httj3 p7, tai ncdeni or�,/ wl b wr /�� s /su /�tatesw/ fui ni �c�
1 Original and one copy of the Stormwater Management Permit Application Form
2 Original and one copy of the signed and notarized Deed Restrictions & Protective Covenants
Form (if required as per Part VII below)
3 Original of the applicable Supplement Form(s) (sealed, signed and dated) and O &M
agreement(s) for each BMP
4 Permit application processing fee of $505 payable to NCDENR (For an Express review, refer to
hyp / /www envhelp org /pages /onestopexpress html for information on the Express program
and the associated fees Contact the appropriate regional office Express Permit Coordinator for
additional information and to schedule the required application meeting)
5 A detailed narrative (one to two pages) describing the stormwater treatment/ management
6 A USGS map identifying the site location If the receiving stream is reported as class SA or the
receiving stream drams to class SA waters within 1h mile of the site boundary, include the 1/2
mile radius on the map
7 Sealed, signed and dated calculations (one copy)
8 Two sets of plans folded to 8 5" x 14" (sealed, signed, & dated), including
a Development/ Project name
b Engineer and firm
c Location map with named streets and NCSR numbers
d Legend
e North arrow
f Scale
g Revision number and dates
h Identify all surface waters on the plans by delineating the normal pool elevation of
impounded structures, the banks of streams and rivers, the MHW or NHW line of tidal
waters, and any coastal wetlands landward of the MHW or NHW lines
• Delineate the vegetated buffer landward from the normal pool elevation of impounded
structures, the banks of streams or rivers, and the MHW (or NHW) of tidal waters
i Dimensioned property/ project boundary with bearings & distances
j Site Layout with all BUA identified and dimensioned
k Existing contours, proposed contours, spot elevations, finished floor elevations
1 Details of roads, drainage features, collection systems, and stormwater control measures
in Wetlands delineated, or a note on the plans that none exist (Must be delineated by a
qualified person Provide documentation of qualifications and identify the person who
made the determination on the plans
n Existing drainage (including off - site), drainage easements, pipe sizes, runoff calculations
o Drainage areas delineated (included in the main set of plans, not as a separate document)
p Vegetated buffers (where required)
7ft
1;21
for
e M

9 Copy of any applicable soils report with the associated SHWT elevations (Please identify '
elevations in addition to depths) as well as a map of the boring locations with the existing
elevations and boring logs h-iclude an b 5 "x11" copy of the NRCS County Soils map with the
protect aiea clearly delineated For projects with uifiltiation BMPs, the report should also
include the soil type, expected infiltration rate, and the method of deteirunirig the ufiltration late
(Infiltration Devices submitted to WiRO: Schedule a site visit for DWQ to venjij tlie SHWT pnor
to sub)iuttal, (910) 796 -7375) f
10 A copy of the most current pioperty deed Deed book 470 Page No 474 -476
11 For corpoiations and hunted liability corporations (LLC) Provide documentation from the NC
Secretary of State or oilier official documentation, which supports the titles and positrons held
by the persons hsted in Contact Information, item 1a, 2a, and /or 3a per 15A NCAC 2H 1003(e)
The corporation or LLC must be listed as an active corporation in good standing with the NC
Secretary of State, otherwise the application will be returned.
http / /www secretary state nc us /Corporations /CSeaich aspx
VII. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
For all subdivisions, outparcels, and future development, the appropriate property restrictions and protective
covenants are required to be recorded prior to the sale of any lot It lot sizes vary significantly or the proposed
BUA allocations vary, a table listurg each lot numbei, lot size, and the allowable built -upon area must be
provided as an attachment to the completed and notarized deed restriction form The appropriate deed
restrictions and protective covenants torins can be downloaded from
og Downloal� t)121atestV2rS1011Sf01 each
d
Submittal
h,, the instances where the applicant is different than the property owner, it is the i esponsibrhty of the property
owner to sign the deed restrictions and protective covenants form wlule the applicant is responsible for ensuring
that the deed restrictions are recorded
By the notarized signature(s) below, the permit holder(s) certify that the recorded property restrictions and
protective covenants for this project, if required, shall include all the items required in the permit and listed
on the forms available on the website, that the covenants will be binding on all parties and persons claiming
under them, that they will run with the land, that the required covenants cannot be changed or deleted
without concurrence from the NC DWQ, and that they will be recorded prior to the sale of any lot.
VIII. CONSULTANT INFORMATION AND AUTHORIZATION
Applicant Complete this section if you wish to designate authority to another individual and/or turn (such as a
consulting engineer and /or firm) so that they may provide information on your behalf for this project (such as
addressing requests for additional information)
Consulting Engineer David F Ramsey
Consulring Firm R &S Engmeernlg, and Construction Corpoi ation
Mailmg Address 61 The Glens Boulevard
City banner Elk
Phone (727 )_ 409 -4639
Email davidf ramseyCverizon net
State NC Zip 28604
Fax (None )

IX. PROPERTY OWNER AUTHORIZATION (if Contact Information, item 2 has been filled out, complete this
section)
I, (print or type name of person listed in Contact Information, item 2a) Angelo Accetturo, Manager certify that I
own the property identified in this permit application, and thus give permission to (print or type name of person
listed in Contact Information, item 1a) David F Rainseit with (print or type name of organization listed in
Contact Information, item 1a) R&S En ng� eercng and Construction Corp to develop the
project as currently proposed. A copy of the lease agreement or pending property sales contract has been
provided with the submittal, which indicates the party responsible for the operation and maintenance of the
stormwater system
As the legal property owner I acknowledge, understand, and agree by my signature below, that if my designated
agent (entity listed in Contact Information, item 1) dissolves their company and /or cancels or defaults on their
lease agreement, or pending sale, responsibility for compliance with the DWQ Stormwater permit reverts back to
me, the property owner As the property owner, it is my responsibility to notify DWQ immediately and submit a
completed Name / Ownership Change Form within 30 days, otherwise I will be operating a stormwater treatment
facility without a valid permit I ur
permit is a violation of 1K General
the assessment of civ1Ypq4ialties of i
Signature
t!CnZ
before me this
iud that the operation of a stormwater treatment facility without a valid
143 -2151 and may result in appropriate enforcement action including
625,004 oer dav, n uisuant to NCGS 143 -215 6
Date -q- u —/3
a Notary Public for the State of �i4� (Q �f , County of
do hereby certify that
day of I
stormwater permit Witness my hand and official seal, _
RE Y C"oo
LU
PU6\- z;
SEAL
My commission expires 126 S
Form S WU -101 Version 06Aug2012 Page 6 of 7

X. APPLICANT'S CERTIFICATION
I, (print or type name of person Iisted in Contact Information, item 1a) David F Ramsey, Professional EnVneer
certify that the information included on this permit application form is, to the best of my knowledge, correct and
that the project will be constructed in conformance with the approved plans, that the required deed restrictions
and protective covenants will be recorded, and that the proposed protect complies with the requirements of the
applicable stormw es under 15A NCAC 21-1.1000 and any other applicable state stormwater requirements
Signature Date
�he a Notary Public for fate of N`�V " ( � !' County of
(( do erby certify that Lug y S __ personally appeared
before me this` T day of � � and acknQw dge,the d execute n of the a hcahon r
a stormwater permit Witness my hand and official seal, /1
C0
LU
SEAL
My commission expires J V,
Form SWU -101 Version 06Aug2012 Page 7 of 7

North Carolina Secretary of State
�A
Arcnunt Login Reaistpr
http / /www secretary state nc us /corporations /Corp aspx`?Pitemld =10
North Carolina
Elaine F Marshall —
ci _111L
Secretary _ E R E I i E -[ 'iT E
PO Fcv 2,6.._' i; I n, NC
Date
3/26/2015
Click here to
View Document Filings I File an Annual Report I
®� Print a Pre - populated Annual Report Fellable PDF Form I Amend A Previous Annual Report
Corporation Names
Name
Name Type
NC ELK CREEK DEVELOPMENT
LEGAL
COMPANY OF BANNER ELK LLC
Limited Liability Company Information
SOSID:
1287012
Status:
Current - Active
Effective Date.
11/13/2012
Citizenship:
DOMESTIC
State of Inc.:
NC
Duration:
PERPETUAL
Annual Report Status*
CURRENT
Registered Agent
Agent Name:
WRIGHT, JOHN M
Office Address:
139 MAIN STIR E
BANNER ELK NC 28604 -9238
Mailing Address:
PO BOX 725
BANNER ELK NC 28604 -0725
Principal Office
Office Address:
140 AZALEA CIRCLE
BANNER ELK NC 28604 -7386
Mailing Address:
PO BOX 1525
BANNER ELK NC 28604 -1525
Officers /Company Officials
Title.
GENERAL MANAGER
Name:
ANGELO ACCETTURO
Business Address:
PO BOX 1525
BANNER ELK NC 28604
This website is provided to the public as a part of the Secretary of State Knowledge Base (SOSKB) system Version,
5454
1 of 1 3/26/2015 9 15 AM

APR 0 6, 2015
AMA
NCDENR
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form must be filled out, printed and submitted
The Required Items Checklist (Part ill) must be printed, filled out and submitted along with all of the required information
(to be provided Dy VW(J)
r
O 'r
I. PROJECT INFORMATION
11,246 ft3
Project name
Elk Creek at Banner Elk
Contact person
David F Ramsey Professional Engineer
Phone number
727 409 -4639
Date
3/25/2015
Drainage area number
#1 Entire Site
II. DESIGN INFORMATION
ft'
Site Characteristics
to
Drainage area
348,480 fe \
Impervious area, post - development
134,950 fC
% impervious
3873 %
Design rainfall depth
10 in
Storage Volume- Non -SA Waters
Minimum volume required
11,246 ft3
Volume provided
16,806 ft3
OK, volume provided is equal to or in excess of volume required
Storage Volume SA Waters
15" runoff volume
ft3
Pre - development 1 -yr, 24 -hr runoff
ft"
Post -development 1 -yr, 24 -hr runoff
ft,
Minimum volume required
ft'
Volume provided
to
Peak Flow Calculations
Is the pre /post control of the 1 yr 24hr storm peak flow required?
N (Y or N)
1 -yr, 24 -hr rainfall depth
in
Rational C, pre-development
(unitless)
Rational C, post - development
(unitless)
Rainfall intensity 1 -yr, 24 -hr storm
in/hr
Pre-development 1 -yr, 24 -hr peak flow
ft3 /sec
Post -development 1 -yr, 24 -hr peak flow
ft"/sec
Pre /Post 1 -yr, 24 -hr peak flow control
ft3lsec
Elevations
Temporary pool elevation
367750 fmsl
Permanent pool elevation
367550 fmsl
SHWT elevation (approx at the perm pool elevation)
367470 fmsl
Top of 1 Oft vegetated shelf elevation
3676 00 fmsl
Bottom of 1 Oft vegetated shelf elevation
367000 fmsl
Sediment cleanout, top elevation (bottom of pond)
3669 00 fmsl
Sediment cleanout, bottom elevation
366800 fmsl
Sediment storage provided
100 ft
Is there additional volume stored above the state - required temp pools
N (Y or N)
Elevation of the top of the additional volume fmsl
Form SW401 -Wet Detention Basin -Rev 9- 4/18/12 Parts I & 11 Design Summary, Page 1 of 2

Permit No
(to be provided by DWQ)
11 DESIGN INFORMATION
Surface Areas
Area, temporary pool 9,636 if
Area REQUIRED, permanent pool
SAIDA ratio
Area PROVIDED, permanent pool, Ap._pw
Area, bottom of 1Oft vegetated shelf, Abt_�
Area, sediment cleanout, top elevation (bottom of pond), Abt_,„ d
Volumes
Volume, temporary pool
Volume, permanent pool, Vp._pw
Volume, forebay (sum of forebays 6 more than one forebay)
Forebay % of permanent pool volume
SAIDA Table Data
Design TSS removal
Coastal SAIDA Table Used?
Mountain/Piedmont SAIDA Table Used?
SAIDA ratio
Average depth (used in SAIDA table)
Calculation option 1 used? (See Figure 10 -2b)
Volume, permanent pool, V,--P
Area provided, permanent pool, Ap�_pcd
Average depth calculated
Average depth used in SAIDA, d.„ (Round to nearest 0 5ft)
Calculation option 2 used? (See Figure 10 -2b)
Area provided, permanent pool, Ap._pw
Area, bottom of 1 Oft vegetated shelf, Abt �w
Area, sediment cleanout, top elevation (bottom of pond), Abot_pwd
"Depth" (distance b/w bottom of 10ft shelf and top of sediment)
Average depth calculated
Average depth used in SAIDA, d., (Round to down to nearest 0 5ft)
Drawdown Calculations
Drawdown through onfice?
Diameter of onfice (if circular)
Area of onfice (d- non -circular)
Coefficient of discharge (CD)
Driving head (Ho)
Drawdown through weir?
Weir type
Coefficient of discharge (C.)
Length of weir (L)
Driving head (H)
Pre - development 1 -yr, 24 -hr peak flow
Post-development 1 -yr, 24 -hr peak flow
Storage volume discharge rate (through discharge onfice or weir)
Storage volume drawdown time
Additional Information
Vegetated side slopes
Vegetated shelf slope
Vegetated shelf width
Length of flowpath to width ratio
Length to width ratio
Trash rack for overflow & onfice?
Freeboard provided
Vegetated filter provided?
Recorded drainage easement provided?
Capures all runoff at ultimate build -out?
Drain mechanism for maintenance or emergencies is
4,879 fe
140 ( unifless)
7,198 fl? OK
1 ,773
950
16,806 ft? OK
22,428 ft3
4,515 ft3
201% % OK
85 %
N (Y or N)
Y (Y or N)
140 (unitless)
n (Y or N)
22,428 ft
7,198 if
310 ft OK
30 ft OK
n (Y or N)
7,198 W
1,773 fe
950 fe
100 ft
3 12 ft OK
30 ft OK
Y (Y or N)
400 in
W
0 40 ( unitless)
100 ft
_ (Y or N)
_ (unidess)
_ ( unitless)
ft
ft
_ ft3 /sec
_ ft3 /sec
_ ft3 /sec
2 00 days OK, draws down in 2 -5 days
3 1
OK
10 1
OK
100 ft
OK
3 1
OK
20 1
OK
y (Y or N)
OK
10 t
OK
Y (Y or N)
OK
n (Y or N)
Insufficient Recorded drainage easement required
y (Y or N)
OK
2" Gate Valve In Bottom of Control Structure for draw down at El of Permanent Pool
Form SW401 -Wet Detention Basin -Rev 9- 4/18/12 Parts I & 11 Design Summary, Page 2 of 2

Permit No
III. REQUIRED ITEMS CHECKLIST
(to be provided by DWQ)
Please indicate the page or plan sheet numbers where the supporting documentation can be found An incomplete submittal package will
result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to
Indicate the following design requirements have been met If the applicant has designated an agent, the agent may Initial below If a
requirement has not been met, attach justification.
Page/ Plan
Initials Sheet No.
DFR 2,3
1 Plans (1" - 50' or larger) of the entire site showing
- Design at ultimate build -out,
- Off -site drainage (if applicable),
- Delineated drainage basins (include Rational C coefficient per basin),
- Basin dimensions,
- Pretreatment system,
- High flow bypass system,
- Maintenance access,
- Proposed drainage easement and public right of way (ROW),
- Overflow device, and
- Boundaries of drainage easement
DFR 3,4,5,6,7,8
2 Partial plan (1" = 30' or larger) and details for the wet detention basin showing
- Outlet structure with trash rack or similar,
- Maintenance access,
- Permanent pool dimensions,
- Forebay and main pond with hardened emergency spillway,
- Basin cross - section,
- Vegetation specification for planting shelf, and
- Filter strip
DFR 8
3 Section view of the wet detention basin (1" = 20' or larger) showing
- Side slopes, 31 or lower,
- Pretreatment and treatment areas, and
- Inlet and outlet structures
DFR 8
4 If the basin is used for sediment and erosion control during construction, clean out of the basin is specified
on the plans prior to use as a wet detention basin
DFR 9
5 A table of elevations, areas, incremental volumes & accumulated volumes for overall pond and for forebay,
to verify volume provided
DFR 8
6 A construction sequence that shows how the wet detention basin will be protected from sediment until the
entire drainage area is stabilized
DFR 9
7 The supporting calculations
DFR Prev Subm
8 A copy of the signed and notarized operation and maintenance (0 &M) agreement
DFR Prev Subm
9 A copy of the deed restrictions (if required)
DFR 2,3,7, 8
10 A soils report that is based upon an actual field investigation, soil bonngs, and infiltration tests County
soil maps are not an acceptable source of soils information
Form SW401 -Wet Detention Basin -Rev 9 -4/18/12 Part III Required Items Checklist, Page 1 of 1

SUPPORTING CALCULATIONS for Wet Detention Basins
Project Elk Creek of Banner Elk
Date 3/23/2015
Peak Flow Calculations
Developed Portion of Project Site (All area draining to wet pond)
DA -1 11 developed area
Peak Flow Q =CIA Tc =5 min
C = 0 51 budding /parking /sidewalks w /landscaping
1 -10 = 7 5 In /hr
1 -25 = 85 In /hr
A = 8 Acres
Q -10 = 30.60
Q -25 = 34 680
Totals Q -10 = 17 1 cfs Q -25 =20 6 cfs
Pollutant Removal Calcs: Bioretention
use simple method
Site DA (sq ft ) DA -ac IA (sq ft) IA -sec
total 348480 80 134,950 90 305
1% RV
04
Pond Sizing Calculations
site WQ vol
required
cu -ft
WQ vol (cu ft)
041 11246
WQ vol
provided
cu -ft
WP 0 0.00
Stage- Storage Volume Calculation Table
Surface Area Incremental
Elevation SF Volume CF
Max Depth
ft
4
Cumulative
Volume CF
36755
719833
0
0
36765
838900
7793 665
7793 665
36775
963600
90125
16806 165
36785
Freeboard
0
16806 165
Avg Depth
ft
3