20070721 Ver 2_More Info Received_20220124

Moore, Andrew W
From: Tyson Kurtz <[e-mail]>
Sent: Monday, January 24, 2022 7:30 AM
To: Moore, Andrew W; Brown, David W CIV USARMY CESAW (USA)
Cc: Leslie, Andrea J
Subject: Re: [External] FW: Request for Additional Information, North Fork Reservoir, Henderson
County (DWR Project #20070721 V2)
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Andrew - I spoke with the folks and Jennigs and the City of Hendersonville and confirmed that annual
monitoring reports can be submitted.
Thanks,
Tyson
From: Moore, Andrew W <[e-mail]>
Sent: Friday, January 21, 2022 1:58 PM
To: Tyson Kurtz <[e-mail]>; Brown, David W CIV USARMY CESAW (USA) <[e-mail]>
Cc: Leslie, Andrea J <[e-mail]>
Subject: RE: [External] FW: Request for Additional Information, North Fork Reservoir, Henderson County (DWR Project
#20070721 V2)
The reporting parameters are sufficient. However, it is not clear how often the results will be reported to the agencies
(e.g. quarterly, annually, at the end of three years).
DWR would like to see three annual reports, not a single report at the end of three years. Prior to writing the 401
approval, I would like confirmation from the applicant that three annual reports will be provided.
Thanks,
Andrew
From: Tyson Kurtz <[e-mail]>
Sent: Friday, January 21, 2022 1:35 PM
To: Moore, Andrew W <[e-mail]>; Brown, David W CIV USARMY CESAW (USA)
<[e-mail]>
Cc: Leslie, Andrea J <[e-mail]>
Subject: RE: [External] FW: Request for Additional Information, North Fork Reservoir, Henderson County (DWR Project
#20070721 V2)
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Andrew — In the Monitoring Plan for Downstream Impacts of Sediment release (Section 1.3 of the email sent to WRC and
included on the Add. Info. Email sent to you yesterday) the following monitoring schedule and reporting requirements
are listed:
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• Repeat the cross-section surveys quarterly for at least three years and compare data in order to determine
changes over time.
• Photograph cross -sections during surveys.
• Report monitoring results including graphs, tables, and photographs, to regulatory agencies to determine if any
changes are needed in the sediment release plan.
This is on the second page of the PDF email, in case you only saw the first page.
Please let me know if these reporting parameters are sufficient.
Thank you,
Tyson Kurtz
Biologist
0: 828-698-9800 ext. 302 I C: 610-310-8744
From: Moore, Andrew W <[e-mail]>
Sent: Friday, January 21, 2022 11:50 AM
To: Tyson Kurtz <[e-mail]>; Brown, David W CIV USARMY CESAW (USA) <[e-mail]>
Cc: Leslie, Andrea J <[e-mail]>
Subject: RE: [External] FW: Request for Additional Information, North Fork Reservoir, Henderson County (DWR Project
#20070721 V2)
Thanks Tyson. There is no frequency proposed for submittal of the monitoring results associated with the Monitoring
Plan for Downstream Impacts of Sediment Release. DWR would like to see an annual report. Is that satisfactory with the
applicant? If so, we will incorporate the monitoring requirement into the 401 approval.
Andrew W. Moore, PG
Environmental Specialist II — Asheville Regional Office
Water Quality Regional Operations Section
NCDEQ — Division of Water Resources
828 296 4684 office
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.
From: Tyson Kurtz <[e-mail]>
Sent: Thursday, January 20, 2022 1:29 PM
To: Moore, Andrew W <[e-mail]>; Brown, David W CIV USARMY CESAW (USA)
<[e-mail]>
Cc: Leslie, Andrea J <[e-mail]>
Subject: [External] FW: Request for Additional Information, North Fork Reservoir, Henderson County (DWR Project
#20070721 V2)
2

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Andrew,
Please see the forwarded email below and attachments in response to your November 15, 2021 Additional Information
Request.
Feel free to let me know if you have any question about the responses or overall project.
Thank you,
Tyson Kurtz
Biologist
0: 828-698-9800 ext. 302 I C: 610-310-8744
From: Zan Price <[e-mail]>
Sent: Thursday, January 20, 2022 9:23 AM
To: Tyson Kurtz <[e-mail]>
Cc: Greg Jennings <[e-mail]>; Steurer, Adam <[e-mail]>; Smith, Lee <[e-mail]>;
Levi, Ricky <[e-mail]>; [e-mail]; Clement Riddle <[e-mail]>
Subject: Re: FW: Request for Additional Information, North Fork Reservoir, Henderson County (DWR Project #20070721
V2)
All, see draft responses below and updated plan sheets for review. Tyson, please forward to DWR if there are
no comments. Thanks.
1. Please provide an agent authorization form. [15A NCAC 02H .0502(a)(11)]
Clearwater addressed this comment
2. Does the anticipated sediment excavation depth extend below 2,440' elevation? [15A NCAC 02H
.0502(a)(9)]
The majority of sediment to be excavated from the reservoir is above the 2,440' elevation. There is a sediment wedge in
the vicinity of the northern end of the dam that will be excavated to an elevation below the invert of the bottom drain
(approximately 2,432'). The reservoir water elevation will be lowered below 2,440' to dewater this sediment prior to
removal. The plans and construction sequence have been updated to reflect this change.
3. The project narrative indicates up to 7,500 cubic yards of sediment are to be removed. However, Sheet 6.3
indicates 6,500 cubic yards of storage in the sediment disposal area. Why is there a discrepancy? Is there
adequate room for 7,500 cubic yards at the proposed dredge disposal area? [15A NCAC 02H .0502(a)(6) and
(a)(9)]
The sediment storage area can accommodate 7,500 cubic yards. See updated plans.
4. It appears from Sheet 6.1 that the Big Creek temporary diversion channel terminates into the Phase I
dredging area. It appears from Sheet 6.2 that the Fletcher Creek temporary diversion channel outlets upgradient
of an area to be dredged during Phase II. It's unclear from the plans provided how Big Creek and Fletcher Creek
streamflow will be conveyed to the area of the siphon and WTP Intake during excavation of sediment near the
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dam while avoiding excavation in flowing water, particularly during Phase II where there appears to be a
significant area to be dredged downgradient of Big Creek flow, where Big Creek flow will presumably
accumulate/pond in the Phase I dredge area, and downgradient of the Fletcher Creek temporary diversion.
Please provide additional details regarding the construction sequence, diversions, and erosion control measures
that will be implemented during excavation in the area near the dam. [15A NCAC 02H .0506(b)(2)]
The plan sheets and construction sequence have been revised to address these comments. A second siphon location
has been added to the southern side of the dam for both phases. A turbidity curtain and rock silt check will be installed
around the siphon intakes. Additionally, any turbid water generated during dredging operations will be pumped into the
WTP intake for treatment at the plant.
5. It's not clear from the Sediment Release Plan if the proposed adjustments to the gate valve during and
following precipitation events will be automated, or whether the gate valve will require manual adjustments.
Please clarify. [15A NCAC 02H .0502(a)(3)]
The gate valve will be automated. See attached response provided to NC WRC on December 14, 2021.
Zan Price, PE
Jennings Environmental PLLC
828-712-9194
zan c(�jennincisenv.com
This information is confidential and is intended solely for use by the recipient and others authorized to receive it.
Any disclosure, copying, distribution or taking action in relation to this information is strictly prohibited and may be
unlawful.
On Fri, Dec 10, 2021 at 2:40 PM Tyson Kurtz <[e-mail]> wrote:
All — The NC Division of Water Resources issued the following comments/questions after reviewing the permit
application (See email below). Our preliminary thoughts to each comment is below:
1. I sent this form in yesterday afternoon. Item complete.
2. Need input. Sounds like he is asking if dredging will extend below the lowered surface water/groundwater table
elevation.
3. Need clarification. The narrative and construction sequence both say 7,500 CuYds.
4. Need input. I talked to Andrew on the phone and wrote some additional comments on the attached impact
sheets.
5. Need clarification. It is my understanding that the gate valve can adjusted either manually or automated.
Thank you and feel free to let me know if you have any questions or want to set up a call to discuss these items,
Tyson Kurtz
Biologist
0: 828-698-9800 ext. 302 I C: 610-310-8744
From: Moore, Andrew W <[e-mail]>
Sent: Thursday, December 09, 2021 11:17 AM
To: Tyson Kurtz <[e-mail]>
4

Cc: Brown, David W SAW <[e-mail]>; Leslie, Andrea J <[e-mail]>
Subject: Request for Additional Information, North Fork Reservoir, Henderson County (DWR Project #20070721 V2)
Tyson,
On November 15, 2021, the Division of Water Resources (Division) received your application requesting a 401 Water
Quality Certification from the Division for the subject project. The Division has determined that your application is
incomplete and cannot be processes. The application is on -hold until all of the following information is received:
1. Please provide an agent authorization form. [15A NCAC 02H .0502(a)(11)]
2. Does the anticipated sediment excavation depth extend below 2,440' elevation? [15A NCAC 02H .0502(a)(9)]
3. The project narrative indicates up to 7,500 cubic yards of sediment are to be removed. However, Sheet 6.3
indicates 6,500 cubic yards of storage in the sediment disposal area. Why is there a discrepancy? Is there
adequate room for 7,500 cubic yards at the proposed dredge disposal area? [15A NCAC 02H .0502(a)(6) and
(a)(9)]
4. It appears from Sheet 6.1 that the Big Creek temporary diversion channel terminates into the Phase I dredging
area. It appears from Sheet 6.2 that the Fletcher Creek temporary diversion channel outlets upgradient of an
area to be dredged during Phase II. It's unclear from the plans provided how Big Creek and Fletcher Creek
streamflow will be conveyed to the area of the siphon and WTP Intake during excavation of sediment near the
dam while avoiding excavation in flowing water, particularly during Phase II where there appears to be a
significant area to be dredged downgradient of Big Creek flow, where Big Creek flow will presumably
accumulate/pond in the Phase I dredge area, and downgradient of the Fletcher Creek temporary diversion.
Please provide additional details regarding the construction sequence, diversions, and erosion control
measures that will be implemented during excavation in the area near the dam. [15A NCAC 02H .0506(b)(2)]
5. It's not clear from the Sediment Release Plan if the proposed adjustments to the gate valve during and following
precipitation events will be automated, or whether the gate valve will require manual adjustments. Please
clarify. [15A NCAC 02H .0502(a)(3)]
Pursuant to Title 15A NCAC 02H .0502(e), the applicant shall furnish all of the above requested information for the
proper consideration of the application. Please provide a response by January 7, 2021. If all of the requested
information is not received, the Division will be unable to approve the application and it will be denied as incomplete.
The denial of this project will necessitate reapplication to the Division for approval, including a complete application
package and the appropriate fee.
Feel free to contact me if you have any questions.
Andrew W. Moore, PG
Environmental Specialist II — Asheville Regional Office
Water Quality Regional Operations Section
NCDEQ — Division of Water Resources
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828 296 4684 office
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.
6