[External] Re Request for Additional Information, Upstream Slope Repairs at Slick Rock Mountain Dam, Transylvania County (DWR #20231423)

1
Winston, Joey
From:T e allen Engineering <[e-mail]>
Sent:Tuesday, December 5, 2023 6:19 PM
To:Winston, Joey
Subject:[External] Re: Request for Additional Information, Upstream Slope Repairs at Slick Rock Mountain
Dam, Transylvania County (DWR #20231423)
Attachments:C1 -- 12-05-2023.pdf; C2 -- 12-05-2023.pdf; C3 -- 12-05-2023.pdf; C4 -- 12-05-2023.pdf; C5 --
12-05-2023.pdf
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Hello Mr. Winston:

Thank you for your email concerning Slick Rock Mountain Dam.

Please find the attached revised plans. The Plans have been revised to address your comments on
turbidity. A new Sheet C-2 has been added that contains the turbidity requirements referenced in
your email.

The attached drawings should be printed on standard 8-1/2"x11" paper.

Please call or email if you have any questions or if you require any additional information.

Thank you.

Terry Allen, PE, MSE
T.E. ALLEN ENGINEERING, PC
P.O. Box 103
Rosman, NC 28772 8
28-877-4883 Office
828-553-3004 Mobile

From: "Joey Winston" <[e-mail]>
To: "tealleneng" <[e-mail]>
Sent: Tuesday, December 5, 2023 3:12:18 PM
Subject: Request for Additional Information, Upstream Slope Repairs at Slick Rock Mountain Dam,
Transylvania County (DWR #20231423)

Mr. Allen, 

On November 8, 2023, the Division of Water Resources (Division) received your applicaƟon requesƟng a 401 Water 
Quality CerƟficaƟon from the Division for the subject project. The Division has determined that your applicaƟon is 
incomplete and cannot be processed. The applicaƟon is on‐hold unƟl all of the following informaƟon is received:  
2

1. Note 3.0 on Sheet C‐1 of the project plans incorrectly states the turbidity standard. Please revise this note to 
reflect the current standard for turbidity to ensure the turbidity monitoring is accurate and necessary erosion 
and turbidity control measures are uƟlized. The current standard for turbidity is found at 15A NCAC 02B 
.0211(21) and is included below. [15A NCAC 02H .0506(b)(2); 15A NCAC 02H .0211(21)] 

1.
a. Turbidity: the turbidity in the receiving water shall not exceed 50 Nephelometric Turbidity Units (NTU) in 
streams not designated as trout waters and 10 NTU in streams, lakes, or reservoirs designated as trout 
waters; for lakes and reservoirs not designated as trout waters, the turbidity shall not exceed 25 NTU; if 
turbidity exceeds these levels due to natural background condiƟons, the exisƟng turbidity level shall not 
be increased. Compliance with this turbidity standard shall be deemed met when land management 
acƟviƟes employ Best Management PracƟces (BMPs), as defined by Rule .0202 of this SecƟon, 
recommended by the Designated Nonpoint Source Agency, as defined by Rule .0202 of this SecƟon. 

Pursuant to Title 15A NCAC 02H .0502(c), the applicant shall furnish all of the above requested informaƟon for the 
proper consideraƟon of the applicaƟon. Please provide your response by January 5, 2024. If all of the requested 
informaƟon is not received, the Division will be unable to approve the applicaƟon and it will be denied as incomplete. 
The denial of this project will necessitate reapplicaƟon to the Division for approval, including a complete applicaƟon 
package and appropriate fee. 

Please let me know if you have any quesƟons. 

Regards, 
Joey 

Joey Winston 
Environmental Specialist II, Division of Water Resources 
North Carolina Department of Environmental Quality  
Office: (828) 296‐4685 | Cell: (828) 785‐9171  
[e-mail]  

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