20201780 Ver 1_More Info Requested_20201231

Strickland, Bev
From: Goss, Stephanie
Sent: Thursday, December 31, 2020 11:18 AM
To: Love, Chris
Subject: Martin Grade Stabilization, Project # 20-1780
Attachments: Example of Riparian Buffer Impact map.pdf
Chris,
I am currently review the above referenced project and the following is required in order to complete the review:
1. The application is missing an impact map.
2. The stream needs to be shown on the impact map.
3. Show the two zones of the riparian buffer on the impact map as measured from the top of the
streambank. Zone 1 is measured 30 feet from the top of the stream bank, and Zone 2 is measured from 30 feet
to 50 feet. These riparian buffers parallel the stream pattern.
4. Impact map must depict the footprint of the proposed permanent impacts within Zone 2.
5. Please include an example of the catch basin and HDPE pipe. Concentrated flow is not allowed in the riparian
buffer. Water must be dispersed in a sheet flow manner. Is this plan effectively piping/channelizing the water
and then dispersing it into the stream?
I have attached an example of an impact map. If you have any questions, do not hesitate to contact me.
Stephanie Z. Goss
Environmental Program Consultant
Division of Water Resources
Raleigh Regional Office
3800 Barrett Drive
Raleigh, NC 276og
919-791-4256
E-mail correspondence to and from this address may be subject to the
North Carolina Public Records Law and may be disclosed to third parties.

Example of Riparian Buffer Impact Map
House Proposed
Existing
Deck
Include square footage
r i ' of new impact in Zone
D e 2 on rrrap
Zone 2 N euse Buffer 0'
Zone I Neese Buffer
Stream Top of Bank