SW6231105_Response To Comments_20240918

wOOten 120 N. Boylan Avenue
Raleigh, NC 27603
[phone]
HILTON HEIGHTS 72 UNIT RELOCATION
ROBESON COUNTY
LUMBERTON, NORTH CAROLINA
SW6231105
1. Prior Comment 3-'As designed,this project does not meet Runoff Treatment
(defined in ISA NCAC 0211.1002(43)and required per 1 SA NCAC 02H.1003(3)(a))...
Please revise as needed."
Second Review Cornmeal The submittal items indicote 16,298 sf of BUA are not
being captured and treated in the SCM.Some,if not all,of this BUA(particularly the
future BUA that will be used for the proposed buildings)should be able to be captured
and directed to the SCM for treatment If the uncaptured BUA is reduced to the
maximum extent practicable and there are still areas of uncaptured net BUA,the
uncaptured areas of the site can be permitted as a low-density area(provided that the
area meets the low-density requirements).Please revise the submittal materials as
needed.
Please sec the drainage area snip below.The delineated drainage area indicates that
portions of the road and proposed building are uncaptured by the SCM.The response to
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comments provided by the engineer can be found below the drainage area snip.It is noted
that the layout is conceptual,however,when plans are permitted,it is an approval of the
BIJA/drainage areas as shown.Note the following permit conditions:
No person or entity.including the permittee,shall alter any component
shown in the approved plans and specifications. Prior to the construction of any
modification to the approved plans,the permittee shall submit to the Director,and shall
have received approval for modified plans,specifications,and calculations including,but
not limited to.those listed helms..
• Any modification to the approved plans and specifications. regardless r f size
including the SCM(s),BUA.details.etc.
• Redesign or addition to the approved amount of BUA or to the drainage area.
• The construction of any allocated future BUA.
Please maximize the amount of BUA that is directed to the SCM.if not all BUA can
be directed to the SCM,the uncaptured areas of the site can be permitted as a low-
density area(provided that the area meets the low-density requirements).Revise the
package as needed.

Wooten 120 N. Boylan Avenue
Raleigh, NC 27603
[phone]
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Per our conversation with NCDEQ reviewer Michael Lawyer,the previous submittal shows a Phase
II layout that was 100%conceptual. A portion of this Phase II layout was not included in the
delineated drainage area to the SCM because we did not anticipate it physically being able to
discharge to it due to limited topography. The outline of the Phase II Layout has been removed from
the drainage area plan set to avoid confusion and a maximum of 82,502 SF/1.89 AC has been
accounted for In the current SCM design as"Future BUA". If for some reason the BUA proposed in
Phase II exceeds this maximum impervious area or portions of it will not be routed to permitted
SCM,an additional SCM will be designed as part of that phase to meet current regulations.
There have been several conversations between The Wooten Company and NCDEQ.There may be
some missing information between those conversations.To clarify,there was a conceptual future
phase layout shown in the Stormwater Report on the submittal dated March 5th.After receiving
comments on June 3rd and subsequent conversation,the future layout was removed. In the July 1st
submittal,the future layout is not shown in the Stormwater Report.The snip above shows a small
section of the proposed (not future) development which was not able to be captured and conveyed
into the SCM due to the topography of the site.This area is now within a low density drainage area,
refer to comment#2.
It is understood that in the event that the future development is completed,it must not exceed the
permitted future BUA amount and that it must drain to the SCM proposed.If not,additional SCMs
must be permitted to cover the BUA.
2. Prior Comment 7.b.i. - "...Drainage Areas Page... Lines 3-4- See earlier comment/'See earlier
comment. If you are adding a low-density drainage area to this project,you need to include
the low-density drainage area on the Drainage Areas Page and the Low-Density Page of the
form. NOTE: Don't forget to exclude the on-site surface water area from the low-density
area..

‘Iv JLP L n 120 N. Boylan Avenue
Raleigh, NC 27603
[phone]
In earlier submittals we had proposed a low density drainage area but in conversations with Jim
Farkas we misunderstood his direction and thought that he was directing us not to include a low
density area unless directed to by NCDEQ. Based on this comment and my discussion this week with
Mike Lawyer we understand the need for adding a low density drainage area to the application and
EZ-Form.These have been added. Please see revised documents.
The areas of development in this low density drainage area follow requirements with dispersed
flow towards the right of way where it reaches vegetated conveyance ditches.
We understand that this would be the last review cycle and a lot of discussions have happened,if
you need clarification,please feel free to reach out to clarify any questions you may have.
3. Please provide a Response to Comments letter indicating, in a point-by-point manner,how
each of the above comments has been addressed.This item is required per 15A NCAC 02H
.1042(3)(b).
Noted. Responses are included.
4. Provide PDFs of all revisions, 2 hardcopies of revised plan sheets, 1 hardcopy of other
documents, and a response to comments letter briefly describing how the comments have
been addressed.
Noted. Hard copies and pdfs will be provided as requested.
Thank you,
Please reach out to Justin Bright,[e-mail],with any questions.