20081155 Ver 3_More Info Letter_20091012

AF"
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
October 12, 2009
DWQ EXP # 08-11550
Cabarrus County
Mr. David G. McDaniel
Integra Land Company, LLC
1525 International Parkway, Suite 2001
Lake Mary, FL-32146 Subject Property: Integra Springs at Kellswater (formerly part of Kellswater Commons
Development)
STORMWATER MANAGEMENT PLAN (SMP) - Modification to BMP#1
REQUEST FOR MORE INFORMATION
On October 8, 2009, the Division of Water Quality DWQ received your application from Mr. Adam
Nowocin PE, requesting a modification to a stormwater Best Management Practices device (BMP # 1)
which was part of the previously approved SMP for Kellswater Commons Development. Please provide
the following information so that we may continue to review your project and prevent return of
your application as required by 15A NCAC 2H.0506:
Additional Information Requested
1. Please revise the cover sheet and subsequent pages of the plans to reflect the name of the project as
discussed.
2. Wet Pond:
a. Please move the inlet pipe from the corner towards the center of the forebay (i.e. about 20
feet to the right).
b. The riser height dimension indicated in BMP Outlet Detail (Section A-A) should be changed
from 6 feet to 4 feet.
c. Please revise the statement on sheet C400 requiring in-situ soil verification and a possible
clay liner installation to read as follows: "Geotechnical Engineer shall verify that the in-
situ soil is clayey (e.g. silty-clay, loamy-clay, or clay loam) and shall be compacted to
achieve a moderately low to very low infiltration rate (less than 0.6 in/hr). Otherwise, a
clay liner shall be installed as shown". This office recommends an 8-inch clay liner plus 4-
inch top soil.
Please respond within five (5) days of the date of this letter by sending two (2) copies of the above
information and any revisions in writing. The Express Review Program is a process that requires all
parties to participate in a timely manner.
401 Oversight/Express Review Permitting Unit
1650 Mail Service Center, Raleigh, North Carolina 27699-1650
Location: 2321 Crabtree Blvd., Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone]
Internet: http:llh2o.enr.state.nc.us/ncwetlands/
NorthCarolina
?aturallt?
An Equal Opportunity 1 Affirmative Action Employer
Integra Springs at Kellswater
David G. McDaniel
Page 2 of 2
October 12, 2009
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.
Please contact Joseph Gyamfi or Lia Myott Gilleski at 919-733-1786 if you have any questions regarding or
would like to set up a meeting to discuss this matter.
Sincerel ~
Cyndi Karoly, Supervisor
1 Oversight/Express Review Program
CBK/jg
cc: File copy
USACE Asheville Regulatory Field Office
Alan Johnson, DWQ Mooresville Regional. Office
Adam M. Nowocin, PE, N-Focus Design, Inc., 5405 Kellswater Bridge Boulevard, Kannapolis,
NC 28081