20061804 Ver 2_More Info Letter_20070813

~Q'F W A TF,9p Michael F. Easley, Governor
`(~ ~i William G. Ross Jr., Secretary
~ r North Carolina Department of Environment and Natural Resources
~ ~
p ~ Coleen H. Sullins, Director
Division of Water Quality
August 13, 2007
DWQ Project # 2006-1804v2
Johnston County
CERTIFIED MAIL: RETURN RECEIPT REQUESTED
Riverdell Company
Attn: Ms. Rebecca Flowers
4880 NC Hwy 42 East
Clayton, NC 27527
Subject Property: Flowers Plantation, Clayton, NC
UT to Mill Creek [030402, 27-39, WSIV, NSW]
REQUEST FOR MORE INFORMATION
Dear Ms. Flowers:
On August 7, 2007, the Division of Water Quality (DWQ) received your application dated August 7,
2007 to impact 4,890 square feet (ftZ) of Zone 1 protected riparian buffers and 4,464 square feet (ftZ) of
Zone 2 protected riparian buffers to construct the proposed residential subdivision. The DWQ has
determined that your application was incomplete and/or provided inaccurate information as discussed
below. The DWQ will require additional information in order to process your application to impact
protected wetland, streams and/or buffers on the subject property. Therefore, unless we receive the
additional information requested below, we will have to move toward denial of your application as
required by 15A NCAC 2H .0506 and 2B .0233(8) and will place this project on hold as incomplete until
we receive this additional information. Please provide the following information so that we may continue
to review your project.
Additional Information Requested:
Your submitted geotechnical investigation report for the proposed bottomless culvert indicates that
auger refusal was encountered at a depth of 23.6-36.2 feet in the borings. Approval of your
proposed bottomless culvert must include submittal of a signed and sealed (by a Professional
Engineer or Professional Geologist) geotechnical investigation of subsurface soils which directly
complies with the DIVISION OF HIGHWAYS -GUIDELINES FOR DRAINAGE STUDIES
AND HYDRAULIC DESIGN, PREPARED BYA. L. HANKINS, JR., P.E.STATE
HYDRAULICS ENGINEER -1999
(http://www.ncdot.org,/doh/PRECONSTRUCT/HIGHWAY/h-fro/g10399web/pdf/guidelines.pdf ),
which states, "When a shallow (3-5 foot max. depth) non-erosive rock foundation is found
throughout the proposed site, the structure can be built on footings without a bottom allowing
retention of the natural channel bed." The Geotechnical Unit must confirm the foundation
acceptability prior to final selection of the "bottomless" culvert." Based on your submitted
geotechnical investigation report, a bottomless culvert cannot be approved at your proposed
location. Please resubmit your plans reflecting the redesign of your crossing.
Noe Carolina
~atura!!y
401 Oversight/Express Permitting Unit
1650 Mail Service Center, Raleigh, North Carolina 27699-1650
2321 Crabtree Boulevard, Suite 250, Raleigh, North Carolina 27604
Phone: [phone] /FAX [phone] /Internet: httn://h2o.enr.state.nc.us/ncwetlands
An Equal Opportunity/Affirmative Action Employer - 50% Recycled/10% Post Consumer Paper

Riverdell Company
Page 2 of 2
August 13, 2007
Please respond within three weeks of the date of this letter by sending this information to me in writing
and Lauren Cobb of the DWQ Raleigh Regional Office. 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.
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 call Ms. Cyndi Karoly or Ms. Amy Chapman at 919-733-
1786 if you have any questions regarding or would like to set up a meeting to discuss his matter.
Sincere
Cyndi Karoly, Supervisor
401 Oversight/Express Review Permits Unit
CBK/asc
cc: Lauren Cobb, DWQ Raleigh Regional Office
Kevin Martin, S&EC, 11010 Raven Ridge Road, Raleigh, NC 27614
USACE Raleigh Regulatory Field Office
File Copy
Central Files
Filename: 061804v2F1owersPlantation(Johnston)NBR