20080793 Ver 1_More Info Letter_20080930

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Coleen H. Sullins, Director
Division of Water Quality
September 30, 2008
DWQ# 08-0793
Ashe County
CERTIFIED MAIL: 7008 0150 0002 7876 7556
RETURN RECEIPT REQUESTED
Mr. Glen Grubb
Blue Ridge Electric Membership Corporation
PO Box 112
Lenoir, NC 28645
Re: Section 401 Water Quality Certification application
Dear Mr. Grubb:
On May 19, 2008, the North Carolina Division of Water Quality (Division) received your application for a 401 General
Water Quality Certification to impact 142 linear feet of stream in order to develop property in West Jefferson in Ashe
County. Additional information was provided to the Division on August 12, 2008 and September 4, 2008. Additional
information is still required 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.
1. The Division is aware that the Army Corps of Engineers is currently reviewing a pre-existing pipe on
your property and how it relates to the current permit application. Please note that this issue must be
resolved in order for the Division ensure issuance of the appropriate corresponding 401 permit.
2. Please note that the cross-section of the Wet Pond that was provided shows that the vegetated shelf is
designed as a level surface. Per the Division BMP manual, the vegetated shelf should be on a 10:1
slope. This deficiency was noted in our previous letter and appears to have been corrected only on the
plan sheet, not the cross-section. The plan view and profile view of the BMP must be in agreement.
Please note that the plans show that the permanent pool elevation is now designed above the vegetated
shelf. Per the Division BMP manual, the permanent pool elevation should be 6" above the inside
edge of the shelf. This deficiency was noted in our last letter. Please note that changes to the permanent
pool elevation will require review of other major design elements to ensure that the Wet Detention Pond
still meets all required design elements. A corrected/modified BMP Supplement Form should be
submitted showing all changes.
4. The SA/DA ratio provided is insufficient to meet the ratio required per Table 10-1 of the BMP Manual.
North Carolina Division of Water Quality 585 Waughtown Street Phone [phone] Customer Service
Winston-Salem Regional Office Winston-Salem, NC 27107 Fax [phone]
Internet: www.ncwater(iuality.org
An Equal Opportunity/Affirmative Action Employer- 50% Recycled/10% Post Consumer Paper
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
N"om,h Carolina
Mr. Glen Grubb
BREMCO
September 30, 2008
Page 2
5. Please submit the Wet Detention Pond BMP Supplement Form - Required Items Checklist. Please note
that this form was requested in our previous letter, item #2. This form is page 2 of the BMP Supplement
Form. Be sure that all items identified on the Required Items Checklist are clearly evident on the plans
that were submitted, or submit modified or additional plan sheets.
6. Per the DWQ - Stormwater BMP Manual, Wet Detention Pond Major Design Elements, please provide
a BMP design that provides for vegetation stabilization above the permanent pool elevation. This
grassed vegetation should clearly be shown on the plans.
7. The sediment cleanout elevation is noted as 965.00 ft on the BMP Supplement Form and the plans
provided, however the O&M agreement provided notes this elevation as 964.00. Please ensure that the
O&M agreement is accurate after changes are made to the design of the Wet Detention Pond per the
items noted above.
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,
.6 441??-
Steve W. Tedder
Regional Supervisor
DWQ Winston-Salem Regional Office
cc: Amanda Jones, US Army Corps of Engineers, Asheville Regulatory Field Office
Miles Wright, Wright & Assoc., 4190 Hwy 16 South, Newton, NC 28658
DWQ Winston-Salem Regional Office
DWQ Wetlands/401 Unit
DWQ Central Files