20080162 Ver 1_More Info Letter_20080417

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Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Coleen H. Sullins, Director
Division of Water Quality
April 17, 2008
DWQ# 08-0162
Wilkes County
CERTIFIED MAIL: 7007 3020 0000 6279 7631
RETURN RECEIPT REQUESTED
Mr. Ira Myers
1470 Country Club rd
Wilkesboro, NC 28697
Re: Section 401 Water Quality Certification application
Dear Mr. Myers:
On March 13, 2008, the North Carolina Division of Water Quality (DWQ) received additional information for
your application fora 401 General Water Quality Certification modification to impact 4321inear feet of stream
to construct a commercial use building and parking area near Moravian Falls in Wilkes County. We have
reviewed this information and additional information is still necessary in order that we may determine your
project's compliance with 15A NCAC 2H .0500. The DWQ will require this information in order to process
your application to impact protected wetlands and/or streams on the subject property. Therefore, we will place
this project on hold as incomplete until we receive this additional information, and if we do not receive the
additional information requested below, we will have to move toward denial of your application as required by
15A NCAC 2H .0506. Please provide the following information so that we may continue to review your
project.
The volume of the forebay has not been designed in accordance with the Division's Stormwater
BMP manual. Please redesign so that the forebay volume is adequately sized as 20% of the
total volume.
2. Please provide a complete sectional view of the stormwater pond including across-section of
the entire pond. Please note that the interior slopes of the pond above the vegetative shelf must
be designed (and called out on the plans) at 3:1 slopes. This is not noted on the drawings that
have been submitted.
3. Please provide a more detailed planting plan for the pond. Per the BMP manual "the planting
plan should provide specifications for the selection of vegetation, its installation, and the post-
installation care for the vegetated shelf, the 3:1 side slopes and the immediately surrounding
areas.
4. Please provide a pond that is designed to have a length to width ration of 1.5:1 minimum as
noted in the BMP manual.
North Carolina Division of Water Quality 58S Waughtown Street Phone [phone] Customer Service
Winston-Salem Regional Office Winston-Salem, NC 27107 Fax [phone]
Internet: www.ncwaterquality.org
An Equal OpportunitylAffirmative Action Employer - 50% Recycled/10% Post Consumer Paper
N"o, ~` Carolina
dvafura!!y

Mr. Ira Myers
Hwy 18 Commercial Bldg
April 17, 2008
Page 2
5. The average depth of the permanent pool is insufficient per the calculation worksheet submitted.
Please note that this is average depth, not the maximum depth in a specific area. This depth
should not include the 1 foot that should be provided at the bottom of the pond for sediment
storage.
6. The average depth must be utilized to properly calculate the Surface Area to Drainage Area
calculation using Tables 10-1 through 10-4. Please re-verify this calculation.
7. Please provide a complete construction sequence that clearly indicates all construction phases of
this project with regards to the stormwater pond. This must include site grading, scheduling of
the pond construction and protection of the pond during construction phases and/or use and
restoration of the pond during construction. The required items checklist indicates this pond
will not be used as a sediment and erosion control pond, however the plans submitted note that
it will be used. You must determine this information accurately and then provide details
regarding use or protection during site development.
Please respond in writing within 30 calendar days of the date of this letter by sending a copy of this information
to Sue Homewood at the address on this letterhead, and a copy to Ian McMillan N. C. Division of Water
Quality, Wetlands/401 Certification Unit, 1650 Mail Service Center, Raleigh, NC 27699-1650. If you will not
be able to provide the requested information within that timeframe, please provide written confirmation that you
.intend to provide the requested information, and include a specific timetable delineating when the requested
materials will be provided. If we do not hear from you in 30 calendar days, we will assume that you no longer
want to pursue this project and we will consider the project as returned.
This letter only addresses the application review and does not authorize any impacts to wetlands, waters or
protected buffers. Please be aware that any impacts requested within your application are not authorized (at
this time) by the DWQ. If you have any questions, please contact Sue Homewood, DWQ, Winston-Salem
Regional Office, at 336-771-4964 or [e-mail].
Sincerely,
<.~--.~
Steve W. Tedder
Regional Supervisor
DWQ Winston-Salem Regional Office
cc: Monte Matthews, U. S. Army Corps of Engineers, Raleigh Regulatory Field Office
Michael Brame, ECS Carolinas, LLP, 4811 Koger Boulevard, Greensboro, NC 27407
DWQ Winston-Salem Regional Office
DWQ Wetlands/401 Unit
DWQ Central Files