20140843 Ver 1_Application Returned_20150127

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Pat McCrory Donald R. van der Vaart
Governor Secretary
January 23, 2015
CERTIFIED MAIL: 7013 3020 0000 7632 0697
RETURN RECEIPT REQUESTED
John Harmon
Harmon Graham Properties, LLC
Post Office Box 180
Waynesville,
• •
• 1, . 0 4 ' #.,
,
On August 8, 2014, the Division of Water Resources (Division) received a copy of your 401 Wat
Quality Certification Application for the subject project. • October 13, 2014, the Division
requested additional information on the Project. As of today, the Division has not received a
complete response to the additional information request. I
At this time, we are discontinuing our review of your stormwater management plan and returning
the application. The version of the Jule Noland Drive Phase 11 project that was received on
December 11, 2014 includes significant hydraulic design issues and relies on a stormwater
treatment practice that is not capable of meeting the required 85% TSS removal.
In our review of the stormwater management plan, we found several elements that need to bel
revised or more detailed information should be provided. Our initial review comments are list
below: I
Division of Water Resources - 401 & Buffer Permitting Unit
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone]
Internet: www.newaterquality.org
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DWR# 14-0843
Return
• Application
Page 2 of 3
Pond drainage issues
a. Looking at the "Outlet Detail" of drawing SW 2, it appears that there is no provision to
allow the collected water in the basin to be released. There is an emergency overflow
outlet with a 2' weir but no outlet below that to drain the stormwater collected below
the weir.
b. From the information provided, the emergency overflow at the top • the concrete box
outlet in each basin is the same elevation as the top of the pond berm. For example,
the drawing for Basin #5 shows the top • the berm at 2574 elevation and the top •
the "storm water emergency outlet" also at 2574'. If this were to be built as designed,
the stormwater would overtop the berm when water reached the emergency outlet
weir. In significant storms, water would overflow the berm, risking its integrity, and
possibly cause back-up in the adjacent parking lots. Also, there is no freeboard provided
• any • the basins as is required although the "Dry Extended Detention Basin"
supplement sheets all indicate the availability of 1' of freeboard.
2. Need for drainage area boundaries
In order to determine if the proposed stormwater plan is designed according to state rules
and the BMP Manual, it is critical that we be able to determine the boundaries of the
drainage area for each stormwater treatment device. We see drainage area calculations on
drawing SW-1 for the five treatment devices but we cannot determine which lines are the
drainage area boundaries. There is a legend that shows a dashed line for the drainage area
and there are several dashed lines on the drawing but we see no way to identify which lines
represent the five drainage areas. Revise the drawings to clearly identify the drainage
areas.
3. Need to show new contours
Although there is a dark-line symbol for "New Contours" and a gray-line symbol for "existing
contours", we identified only a few lines that might show a final grade. However, the few
final contour lines are not adequate to evaluate the direction and course of the stormwater
flows on the developed project or to assure that it is built in a manner that will function
correctly.
4. Clarify contour information
Existing contour lines on the south side of the project are unclear; most are at 4' intervals
but many are at 8' intervals. Also, there are contour lines on the drawing that change from
solid to dashed. Depict contours with one type of line at a consistent interval throughout.
5. Need more road information
a. Provide more information about the 18 access road connecting the north and south
portions of the project. Indicate if the dashed line on the right-hand side is a ditch;
arrows indicate flow but the contour lines do not indicate a ditch.
W-9URT-MUMS1,

Harmon Graham Properties, LLC
DWR# 14 -0843
Return of Application
Page 3 of 3
c. At the north end of the road at the "transition curb ", there is not enough information to
determine how that water, or the discharge to basin #5, get to Factory Branch. Indicate
if there is a conveyance ditch on the right -hand side of the road. The flow arrow is on
top of the road. Also, clearly indicate "new contours" for the road and depict that
symbol in the legend.
6. Wetland area questions
It is difficult to tell where the stormwater discharging from basins #'s 1 -3 will eventually
reach Mauney Cove Branch. Indicate whether the released stormwater sheet flows across
the wetland or if there are ditches in the wetland area directing the water to the Branch.
More final contour information and a few spot elevations in the 2.2 acre wetland area are
needed. In addition, all discharge pipes should have some method of energy dissipation at
the outlets.
Pursuant to Title 15A NCAC 02H .0507(e), the Division is unable to approve your application. For
the reasons listed above, your application is hereby returned. Once you have addressed the
problems and /or inadequacies with your application as it was submitted, you will need to reapply
to the Division for approval including a complete application package and the appropriate fee.
Please be aware that you have no authorization under Section 401 of the Clear Water Act for this
activity and any work done within waters of the state would be a violation of North Carolina
General Statutes and Administrative Code.
Please contact Kevin Barnett at 828- 296 -4657 or ke0n.barnett 2 n de,_q ov or Jennifer Burdette at
919 -807 -6364 or g rin�f a�.bur tie sic e if you have any questions or concerns.
cc: Wanda Austin, PE, Wanda Austin, PE Engineering, 45 Homespun Road, Sylva, NC 28779
David Brown, USACE Asheville Regulatory Field Office
Todd Bowers, EPA, Sam Nunn Federal Center, 61 Forsyth Street SW, Atlanta, GA 30303
DWR ARC) file
DWR 401 & Buffer Permitting Unit file
Filename: 140843JuleNolandDrPhll (Haywood)_401_IC_Return.docx