20081239 Ver 2_Staff Comments_20110810

Dennison, Laurie
From: Higgins, Karen
Sent: Wednesday, August 10, 2011 10:35 AM
To: [e-mail]
Cc: Chapman, Amy; Dennison, Laurie
Subject: DWQ 08-1239 V2
Mr. Bartlett-
I wanted to follow up on our phone conversation from Monday with a little more detail regarding the Request For More
Information (RFMI) you received from our office on July 29.
As we discussed, you had some questions regarding the rain garden. A rain garden is also called a Bioretention area,
which is considered to be an engineered stormwater control. We encourage you to install a Bioretention area as they
are great systems to treat runoff, however there are certain requirements that they come with.
1. The first item in the RFMI refers to the location of the Bioretention area. Stormwater controls should be placed
outside of the buffer, and in the diagram you submitted, it appears that it is in Zone 2 of the buffer. When you
resubmit your plans, please try to locate the Bioretention area outside of the buffer. If this is not possible and it
must be placed within the buffer, mitigation will be required (as indicated in #% of the RFMI).
2. The second item in the RFMI refers to supplement forms for the Bioretention area. Again, because it is an
engineered stormwater control, it must be designed correct. This is especially true if you are placing it in the
protected buffer.
3. The third item refers to scale - we discussed this and you indicated that you could submit full plan sheets with a
scale of no smaller than 1" = 50'. Please ensure that these plans also indicated the topographic contours.
4. The forth item refers to the walk labeled as #2. We see the walk labeled as #1 that goes directly down to the
lake shore. It is not clear what impact #2 is for, and what the justification is for this impact. Please either
remove this impact from your application or submit further justification for these impacts.
5. The fifth item refers to mitigation, which was discussed above.
6. The sixth item refers to submitting electronic files. As we discussed on the phone, if you are unable to make
TIFF files, please submit the plans as a pdf.
Hopefully this helps explain things a little more. Amy, please correct anything or add anything that I may have forgotten.
If you have any further questions about your project, please contact Amy Chapman at [e-mail] or
919-807-6400 or me at [e-mail] or 919-807-6360.
Thanks-
Karen
Karen Higgins
Wetlands, Buffers, Stormwater - Compliance & Permitting Unit Supervisor
NCDENR - DWQ - Wetlands & Stormwater Branch
1650 Mail Service Center, Raleigh, NC 27699-1650
Phone: [phone]
Email: karen.higgins(@?ncdenr.gov
Website: http://portal.ncdenr.org/web/wg/swp/ws/webscape
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be
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