20100109 Ver 1_Approval Letter_20100319

AEU RR
North Carolina Department of Environment and Natural Resources
Beverly Eaves Perdue
Governor
Division of Water Quality
Coleen R Sullins
Director
March 19, 2010
Dr. Gregory J. Thorpe, PhD.
Environmental Management Director, PDEA
North Carolina Department of Transportation
Project Development and Environmental Analysis
1598 Mail Service Center
Raleigh, North Carolina, 28699-1548
Subject: Correction to 401 Water Quality Certification for NCDWQ Project 20100109
TIP No. B-4574, NCSR 1551 (Mirror Lake Road), Macon County
Dear Dr. Thorpe:
Dee Freeman
Secretary
This letter is in regards to the 401 Water Quality Certification issued for subject project on March 5, 2010, authorizing
stream and wetland impacts. Condition No. 4 should be replaced with the following condition:
The permittee shall use /Design Standards in Sensitive Watersheds/ [15A NCAC 46.0124(a)-(e)] in areas
draining to (Tr) waters. However, due to the size of the project, NC DOT shall not be required to meet 15A
NCAC 4B .0124(a) regarding the maximum amount of uncovered acres. Temporary cover (wheat, millet, or
similar annual grain) or permanent herbaceous cover shall be planted on all bare soil within 15 business days of
ground disturbing activities to provide erosion control.
Tall fescue shall not be used in the establishment of temporary or permanent groundcover within riparian areas.
For the establishment of permanent herbaceous cover, erosion control matting shall be used in conjunction with
appropriate seeding on disturbed soils within the riparian area and on disturbed steep slopes with the following
exception. Erosion control matting is not necessary if the area is contained by perimeter erosion control devices
such as silt fence, temporary sediment ditches, basins, etc. Matting should be secured in place with staples,
stakes, or wherever possible, live stakes of native trees. Erosion control matting placed in riparian areas shall not
contain a nylon mesh grid, which can impinge and entrap small animals. For the establishment of temporary
groundcover within riparian areas, hydroseeding along with wood or cellulose based hydro mulch applied from a
fertilizer- and limestone-free tank is allowable at the appropriate rate in conjunction with the erosion control
measures. Discharging hydroseed mixtures and wood or cellulose mulch into surface waters in prohibited.
Riparian areas are defined as a distance 25 feet landward from top of stream bank.
SURFACE WATER PROTECTION SECTION -ASHEVILLE REGIONAL OFFICE One
Location: 2090 US. Hghway 70, Swannanoa, North Carolina 28778 North Cal'Ohna
Phone: 828-296 FAX: [phone] Customer Service: 1-877823-6748 ??tu"????
Internet: www.ncyyate waterquality.org bt [ K
An Equal Oppommily 1 Affrmalive Aclion Employer
Dr. Greg Thorpe, PhD.
March 19, 2010
Page Two
Please attach a copy of this letter with any copies of the original Water Quality Certification and any subsequent
modifications. All other conditions written into the previous Water Quality Certification for this project still apply except
where superceded by this correction. If you have any questions please contact me at 828-296-4500.
Sincerely,
ox?fre -
oleen Sullins, Ito
D ivision of Water Quality
cc: David Baker, USACE, Asheville Field Office
J. B. Setzer, Division 14 Engineer
Mark Davis, Division 14 DEO
Ed Ingle, Roadside Environmental
Marla Chambers, NCWRC
Transportation Permitting Unit
Asheville Regional Office
Correction to 100109 (Thorpe) Bridge No. 58 NCSR 1551