20130514 Ver 1_More Info Received_20130621

Wanda H. Austin, PE
Engineering Services
828 342 -5079
828 586 -0096
Ms. Karen Higgins
WBSCP Unit
1650 Mail Service Center
Raleigh, NC 27699 -1650
June 12, 2013
Dear Ms. Higgins:
13 -0514
45 Homespun Road
Sylva, North Carolina 28779
Thank you for the preliminary review of the DWQ Project #2013 -0514 submitted for
Tinsel Town, Inc. The following additional information is submitted in response to the
letter from Chuck Cranford dated June 5, 2013.
The impervious area stated in the PCN is 1.6 %. This calculation is based on the proposed
drive relocation and the driveway associated with the relocation. Mr. Wayne Smith with
Tinsel Town, Inc. wants to relocate the drive and widen the drive to improve the
accessibility of the property. He believes the new drive access will improve the
marketability of the property. Mr. Smith is currently in negotiations with a potential
buyer for the property; however, a deposit has not been made on the property nor has any
contracts been executed Therefore, the sole purpose of this project is to relocate the
access to the property. The drawings that were included with the PCN are the appropriate
scaled drawings for the drive relocation project. The new driveway access is 18' wide
and tapers back to the existing 8' soil roadbed. The driveway will be covered with 3" of
ABC. The area of the driveway is approximately 19,000 sf or 0.4 acres. The driveway is
the only planned impervious area for the project, thus 0.4 acres is 1.6% of the total
property size 27.78 acres.
Mr. Smith has agreed to provide grass swales on both sides of the driveway entrance.
The grass swales will capture any storm water runoff from the driveway and deposit the
storm water away from the tributaries. The drive relocation is more than 25' from the
Tuckasegee River, thus maintaining the required buffer for a trout stream.
Please do not hesitate to contact me if you should have any further questions.
Sincerely,
Wanda H. Austin, PE
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Permit No.
(to be provided by DWo
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
LOW DENSITY SUPPLEMENT
This form may be photocopied for use as an original
A low density project is one that meets the appropriate criteria for built upon area and transports stormwater
runoff primarily through vegetated conveyances. Low density projects should not have a discrete stormwater
collection system as defined by 15A NCAC 2H .1002(18). Low density requirements and density factors can be
found in Session Law 2008- 211,15A NCAC 2H .1000, Session Law 2006 -246, and the DWQ BMP Manual.
Curb and gutter systems are allowed provided they meet the requirements in 15A NCAC 2H .1008(g).
L PROJECT INFORMATION
Project Name : Ledbetter Road Parcel
Contact Person: Wayne Smith Phone Number: ( 828 )586 -0724
Number of Lots:OI Allowable Built Upon Area (BUA) Per Lot *:n /a
Number of Dwelling Units Per Acre* * :n/a
Low Density Development (check one): ® without curb & gutter ❑ with curb & gutter, outlets to (check one):
® Swales ❑ Vegetated Area
*If lot sizes are not uniform, attach a table indicating the number of lots, lot sizes and allowable built upon area for each lot.
The attachment must include the project name, phase, page numbers and provide area subtotals and totals. BUA shall be
shown in units of square feet.
* *(Phase II Post - Construction (non -SA) only)
H. BUILT UPON AREA
Refer to DWQ's forms and applications website for specific language that must be recorded in the deed
restrictions for all subdivided projects. (http://h2o.enr.state.nc.us/su/bmp_forms.htm)
Complete the following calculation in the space provided below where:
• SA Site Area - the total project area above Mean High Water.
• DF Density Factor - the appropriate percent built upon area divided by 100.
• RA Road Area - the total impervious surface occupied by roadways.
• OA Other Area - the total area of impervious surfaces such as clubhouses, tennis courts, sidewalks, etc.
• No. of Lots - the total number of lots in the subdivision.
• BUA per Lot - the computed allowable built upon area for each lot including driveways and impervious
surfaces located between the front lot line and the edge of pavement.
• Total allowable lot BUA - the computed allowable built upon area for all lots combined.
• Total BUA from lot listing - the sum of built upon area allocated for each lot on the list of non - uniform lots.
Form SW401 -Low Density- Rev3- 2/10/09 Page 1 of 4

Calculation:
For uniform lot sizes:
(SA: U -1 gMol x DF: O ) — (RA: r q, Cot) f) — (OA: 0 fe) = BUA per Lot 1q, Wo if
(No of Lots: I
For non - uniform lot sizes:
a. (SA: fl? x DF: _J — (RA: fe) — (OA: fib) = Total allowable lot BUA = fe
b. Total BUA from lot listing: sf b must be <_ a
III. DESIGN INFORMATION
Complete the following table. If additional space is needed the information should be provided in the same
format as Table 1 and attached to this form. Rainfall intensity data can be found in Appendix 8.03 of the State
of North Carolina Erosion and Sediment Control Planning and Design Manual or at
http : //hdsc.nws.noaa.gov/hdsc /pfds/
Table 1. Swale design information based on the 10 -year storm.
Form SW401 -Low Density- Rev.3- 2/10/09 Page 2 of 4

IV. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the North Carolina Administrative Code Section 15A
NCAC 2H .1000, NCDENR BMP Manual (2007), Session Law 2006 -246, and Session Law 2008 -211.
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 that the following requirements
have been met and supporting documentation is provided as necessary. If the applicant has designated an agent
on the Stormwater Management Permit Application Form, the agent may initial below. If any item is not met
then justification must be attached. Only complete items n through p for projects with curb outlets.
Page/Plan
Initials Sheet No.
W o p .g4A_ a, t For projects in the 20 coastal counties: Per NCAC 2H.1005, a 50 foot wide vegetative buffer
is provided adjacent to surface waters. For Redevelopment projects, a 30' wide vegetative
buffer adjacent surface waters is provided.
w N a ±U IL b. t For HQW or ORW projects outside the 20 coastal counties: A 30 foot wide vegetative buffer
is provided adjacent to surface waters.
WN A 'm� c. t For Phase 11 Post - Construction projects: All built upon area is located at least 30 feet
Penn'; }
landward of all perennial and intermittent surface waters.
IN 14O i_ d. Deed restriction language as required on form S WU -101 shall be recorded as a restrictive
covenant. A copy of the recorded document shall be provided to DWQ within 30 days of
platting and prior to the sale of any lots.
,N1 HP, � A ' e. Built upon area calculations are provided for the overall project and all lots.
W14ja$ f. Project conforms to low density requirements within the ORW AEC. (if applicable per
15A NCAC 2H. 1007)
pc -tm� i
4 Side slopes of swales are no steeper than 3:1; or no steeper than 5.1 for curb outlet swales.
��" �'fh. Longitudinal slope of swales is no ter than 5 %; or non -curb outlet
is 1� �_ gi pe grey f projects, calculations
for shear stress and velocity are provided if slope is greater than 5 %.
ec�ac�a��h
W g_ 4_ 1. At a minimum, swales are designed to carry the 10 year storm velocity at a non - erosive rate.
>jgg_ -w�a_ j. Swales discharging to wetlands are designed to flow into and through the wetlands at a non-
erosive velocity (for this flow requirement into wetlands, non - erosive is velocity <_ 2 $/s).
K. Swale detail and permanent vegetation is specified on the plans.
Wi{ rt M '*I. Swale detail provided on plans; includes grass types) for permanent vegetative cover.
Wan_ Vic"'} m. Swales are located in recorded drainage easements.
WU Q r4i a n.tt Length of swale or vegetated area is at least 100 feet for each curb outlet.
,1441�1 _ o.tt The system takes into account the run-off at ultimate built -out potential from all surfaces
draining to the system (delineate drainage area for each swale).
\N A A Np�_ p.tt Curb outlets direct flow to a swale or vegetated area.
t Projects in the Neuse, Tar - Pamlico, Catawba River basins, and Randleman Lake may require additional buffers.
tt Only complete these items for projects with curb outlets.
Form SW401 -Low Density- Rev.3- 2/10 /09 Page 3 of 4

I
V. &WALE SYSTEM MAINTENANCE REQUIREMENTS
1. Mowing will be accomplished as needed according to the season. Grass height will not exceed six inches
at any time; and grass will not be mowed too close to the ground or "scalped ".
2. Swales will be inspected monthly or after every runoff producing rainfall event for sediment build -up,
erosion, and trash accumulation.
3. Accumulated sediment and trash will be removed as necessary. Swales will be reseeded or sodded
following sediment removal.
4. Eroded areas of the swales will be repaired and reseeded. Swales will be revegetated as needed and in a
timely manner based on the monthly inspections. Side slopes must be maintained at the permitted slope.
5. Catch basins, curb cuts, velocity reduction devices, and piping will be inspected monthly or after every
significant runoff producing rainfall event. Trash and debris will be cleared away from grates, curb cuts,
velocity reduction devices and piping.
6. Swales will not be altered, piped, or filled in without approval from NCDENR Division of Water Quality.
I acknowledge and agree by my signature below that I am responsible for the performance of the six
maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any
changes to the system or responsible party.
Print Name and Title: T;Q--:-,e_� T'a �,.y u
Address: EA Vn r tic c,�t . OF) 11 s �tC 2.,5 -1-1
Phone: ( % ?_M SSU- Qj 2-4 Date:
Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a
resident of the subdivision has been named the president.
10(n t T l Yf-0 UO , a Notary Public for the State of not f- 1 cbm (l !n County of
do hereby certify that Lu oy f 1 t- S w l+ n personally appeared before me this _
day of and acknowledge the due execution of the forgoing swale maintenance requirements.
Witness my hand and official seal,
Notary signature (0 n L Q ® J
R - N-4WN&*n
*VO4%.
C
a
My commission expires
Form SW401 -Low Density- Rev.3- 2/10 /09 Page 4 of 4

OSE R
513 -721
IZ
i
GENERAL N OTES:
L Erosion control devices should conform with the Erosion anc
Sediment Control Design Manual published by NC Department c
Environment and Natural Resources -Land Quality Section ano
the specifictions of this plan.
2. All exposed ground shall be covered with the appropriate
ground cover within 7 calendar days of completion of said
activity or inactivity for longer than 10 calendar dfays,
Permanent groundcover for all disturbed areas within 7
working days following completion of construction ar
development.
3. Erosion control devices should be checked at least'. once a
week and immediately following a 0,5 inch rain event.
Observations and details of maintenance activities shoulb be
recorded in a log,
4, Repairs to damaged devices or removal of collected silt
should be completed within a reasonable amount of time but
before any forthcoming rain events or damage to adjacent
property,
5. Existing slopes and areas where ground cover is not
established should be reseeded,
6. Wood mulch may be used as a temporary measure � ;,ntil
permanant ground cover can be installed.
7, Installation, maintenance and repair of the erosion control
devices is the sole responsibility of the land owne,- and
company commencing the land disturbing activity.
8. Reinforce silt fence along creek banks with wired ;­iesh or
second line of silt fence,
9. Property Lines per plat by Davenprot & Assoc,, Ir-, dated
December 26, 2012,
10. Construct grassed swales along both sides of new access
drive.
STORM WATER MANAGEMENT NOTES:
11, Grassed Swale should be planted with Tall Fescue. _ahiagras�
or Kentucky Bluegrass are acceptable alternatives,
12. Inspect storm water management devices quarterly and with
24 hours of a 1" storm event,
13. Grass should be mowed to no less than 5 ',
14, Remove trash or sediment and resod as needed.
15, Grassed Swale should be constructed on a 0.1% s(c:)e.
16. Grade driveway to drain to grassed swale,
17. No permanant structures are to be constructed �dthin the
permanant drainage easement (PDE).
18, Maintain a maintenance access along the grassed s,!,iale,
19, No other impervious areas are covered under this plan,
20. For all future development, the appropriate prope< ty
restrictions and protective covenants are require,i to be
recorded prior to the sale of any lots, The appropriate
deed restrictions and protective covenants forms can be
downloaded from
http: / /porto.Lncdenr,org /web /wq /ws /su /statesw /forris_docs
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GRASSED SWALE DETAIL
GRASSED SWALE DETAIL (NOT TO SCALE)
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OWNSHIP:
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WATERSHED:
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SCALE:
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