20021057 Ver 1_More Info Letter_20020806

?O )NAT Michael IF.Eastey, Govemor
William G. Ross Jr., Secretary
G North Carolina Department of Environment and Natural Resources
Gregory J. Thorpe, Ph.D.
Acting Director
-? Division of Water Quality
August 6, 2002
CERTIFIED MAIL: 7002 0860 0003 9550 8397
RETURN RECEIPT REQUESTED
New Hanover County Engineering Dept.
Mr. Wyatt Blanchard
414 Chestnut Street
Wilmington, NC 28401
SUBJECT: PROJECT ON HOLD FOR
ADDITIONAL INFORMATION,.
Kings Grant Sewer Expansion Project
PROJECT # 021057
New Hanover County
Dear Mr. Blanchard:
This Office is placing your project an hold until we receive the following additional information:
1). A set of engineering plans and details that show anti-seep collars in wetlands where required
(see condition #16 on the WQC # 3374 that is enclosed).
2). Please review the conditions of the permit and that the project will comply with these
conditions.
3). Please send a complete set of plans to this Office when the changes have been made and a copy
to Cyndi Karoly at the 401 Wetlands Unit at 2321 Crabtree Blvd., Raleigh, NC 27604-2260.
General Water Quality Certification 3374 condition number ,16 is a requirement for the installation of anti-
seepage collars. The purpose of anti-seepage devices is to stem the wetland drainage effect that has been observed
by DWQ staff, subsequent to the installation of sewer lines. That is, gravity sewer lines are installed at a slope, on a
gravel bed and as such enables sewer line to behave like a French-drain, thereby removing wetland hydrology.
(Please note: it is the expectation of DWQ staff that anti-seepage device requirements are relatively inexpensive as
compared to the requirement for wetland delineation well outside the utility line right-of-way footprint, and prevents
extensive, long-term hydrologic monitoring of adjacent wetlands.) The conditions set under these General
Certifications have been approved by federal agencies (Corps of Engineers and EPA) as well as the Environmental
Management Commission (EMC) and if you feel that you cannot or do not want to meet with these conditions, New
Hanover County pray apply for a variance.
Please respond within three weeks of the date of this letter if you are going to comply with the conditions
of the General Certification # 3374 or if you are planning to apply fora variance. Please send a copy of this letter to
Cyndi Karoly, c/o 401 Wetlands Unit, 2321 Crabtree Blvd., Raleigh, NC 27604-2260. Her phone number is (919)
733 9721. If we do not hear from you within three weeks, we will assume that you no longer want to pursue this
project and we will consider the project as withdrawn and your application will be returned. If you have any
questions, please feel free to call me at [phone]:
1Sincerely, tane S nhuis
Environmental Specialist III
cc: Cyndi Karoly -Wetlands Group Dave Weaver - Assistant County Manager
Mark Hargrove - W.K. Dickson WiRO
Angie Pennock - US Army Corps of Engineers
NCDENR
Ex127 Cardinal Drive t., Wilmington, NC 28405-3845 Telephone [phone] FAX [phone]
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