20160182 Ver 1_More Info Received_20160323

Strickland, Bev
From:Maria Rusafova <[e-mail]>
Sent:Wednesday, March 23, 2016 4:03 PM
To:Price, Zan (George); Jakub Markulis
Cc:Elliott, William A SAW; Leslie, Andrea J; Nancy Watford
Subject:Re: Request for Additional Information - 2 Perdue Place Accessory Structure - DWR
2016-0182 -Buncombe County
Attachments:Culvert Extension - Longitudinal Section.pdf; ProposedSiteWork.pdf; Site2Perdue.pdf
Hello everyone,

Thank you Zan for your comments. Please see our responses below:

1. Impact Justification:

I am attaching a color coded site plan of our property so you can see clearly the existing conditions we have to work with
- see Site2Perdue pdf. Pink is the stream buffer measured from the bank which is eroding around the current culvert),
blue is the sewer easement and the diagonally dashed rectangle is the proposed structure.
Jakub and I keep reevaluating the solutions as we learn more about the constraints we have to work with. To minimize
impact we are proposing to build a structure with smaller footprint, thus needing a much shorter culvert extension than
initially requested. After installing the catch basement at the end of existing culvert we will need 13'-15' in order to
gently slope the ground over the extension towards the head wall or rock bank reinforcement (see attached Culvert
Extension pdf). As you can see from the site plan by minimizing the footprint only 1/2 of the proposed structure would
be impacting the stream buffer in this solution.
We believe that the way the current culvert is installed is incorrect and it brings to unsightly erosion that is jeopardizing
the mature trees growing right on the stream bank. If installed properly following your guideline the proposed culvert
extension should take care of the erosion problem, stabilize the stream banks and protect the trees.

2. Sequence of work:
Selection of a general contractor is pending on the approval of our application, so we haven't taken that step yet. We
are planning on employing the services of a contractor who has experience with such work and will perform it in
professional manner compliant with your regulations. Here is a proposed sequence of work:

First the GC will construct a coffer dam, see Proposed Site Work pdf for coffer dam location. He will temporary divert the
stream over Perdue Place Dr. Next he will install the catch basin, the culvert extension, the head wall or rock bank
reinforcement, and then he will take apart the coffer dam and the temporary water pipe over the street. New dirt infill
area will be planted with native species. This is just a general outline, we can work out the specifics in detail if the
proposed work is approved.

Let me know if you have comments and suggestions. I am glad that collaboration is established between all the parties
involved.

Sincerely,

Maria
Maria Rusafova
Architect, LEED AP

Rusafova Markulis Architects, 828.545.1977, www.rusafova-markulis.com

On 3/23/2016 8:43 AM, Price, Zan (George) wrote:
1

The Division of Water Resources (DWR) has performed a review of a 401 Water Quality Certification
application dated February 18, 2016 and received by DWR on March 2, 2016 for the above referenced
project. The DWR has determined that your application is incomplete and cannot be processed. The
application is on-hold until the following information is received:

1.Impact Justification (Avoidance and Minimization): Please illustrate or explain why the

proposed accessory structure cannot be moved or reconfigured to avoid and minimize
jurisdictional impacts. Please revise the plans and site configuration to avoid and minimize the
stream impacts or provide a detailed explanation of why the proposed plan cannot be
practically accomplished, reduced or reconfigured to better minimize the proposed stream
impacts. \[15A NCAC 02H .0506(f) and (g)\]
2.Per Condition 6 of Water Quality Certification 3890, all work must be done “in the

dry”. Therefore, dewatering methods will be necessary to temporarily dewater the stream
channel during pipe installation. Please provide a construction sequence and associated details
that illustrates the method of dewatering to be utilized at the site and the sequence of
construction events to be followed to ensure compliance with this condition. \[15A NCAC 02H
.0502(b)(3)\]

Pursuant to Title 15A NCAC 02H .0502, the applicant shall furnish all of the above requested information
for the proper consideration of the application. If all of the requested information is not received within
30 calendar days of receipt of this email, the DWR will be unable to approve the application and it will
be returned. The return of this project will necessitate reapplication to the DWR for approval, including
a complete application package and the appropriate fee.

Feel free to submit the above requested information to me via email.

Contact me if you have any questions or concerns.

Regards,

Zan Price, P.E.

Assistant Regional Supervisor – Asheville Regional Office

Water Quality Regional Operations Section

NCDEQ – Division of Water Resources

828 296 4500 office

828 231 9634 mobile

email: [e-mail]

2090 U.S. Hwy. 70

Swannanoa, N.C. 28778

Email correspondence to and from this address is subject to the

North Carolina Public Records Law and may be disclosed to third parties.

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