20231689 Ver 1_More Info Received_20240215

Baker, Caroline D
From:
Trone, Rick <[e-mail]>
Sent:
Thursday, February 15, 2024 3:52 PM
To:
Thomas, Zachary T
Cc:
[e-mail]
Subject:
[External] RE: Town of Fuquay-Varina Southern Oaks Sewer Project - DWR#20231689
Request for Additional Information
Attachments:
FV Southern Oaks Sewer NCDWR RFAI Response Cover Letter and Attache ments..pdf
Importance:
High
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Zach,
Please find attached our response to your RFAI received on February 7, 2024.
Lyle and Zach, if you need this submitted via LF forms as well please let me know. Impacts have reduced slightly in
two areas.
Thanks,
00 Rick Trone
00 ENVIRONMENTAL SCIENTIST III
t:919.469.3340 d:919.538.8184
Cary, INC WITH ERSRAVEN EL.COM
From: Thomas, Zachary T <[e-mail]>
Sent: Wednesday, February 7, 2024 5:23 PM
To: Trone, Rick <[e-mail]>
Cc: [e-mail]
Subject: [EXTERNAL] Town of Fuquay-Varina Southern Oaks Sewer Project - DWR#20231689 Request for Additional
Information
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Hi Rick,
I have reviewed the 401 application for the Town of Fuquay-Varina Southern Oaks Sewer Project project and additional
information is required to complete my review. Please respond to the items below within 30 days. This application will
be considered "on hold" until DWR receives a complete response to the items below:
• Impact W4 appears to have a discrepancy between the PCN table and the impact map (Exhibit 8). Please
confirm that the impact associated with W4 is for 0.001 acres of temporary construction access, is to be
restored, and is not permanent conversion.
1

• Stream 12 is described as Intermittent. On Exhibit 5, it is unclear if this stream channel is temporarily impacted
by the crossing being installed at Impact S6 (highlighted in yellow below). Please confirm and update impact
totals if reauired.
�• r b
TEMOOR.ARV YWGTLArVO ir.• PACT .y
TEMPORARY Cof,esTRUCTrON ACCE5E
36&32 SF1'0.841. AC
F'x11,T 1t44 T 6 OF kJAr rK .„ ,... .
J!-
CORRIDOR, TYP. ..
.t
' .+ • T •_ � � { � - i :, '-,�,_ 'yam y
.. i W ET LAND
. �-
+ • . IN'TERWFFTENT
IMRAC'i •n
TE+ POa n.k'•' STREAM IW PACT
ST6iLr 4N 1 SE1NEk C r, 0, r4 rr,
rETH CREEEN 31 LF (111; "..+-:0QZ7 A5C.)
STREAM F'LC>W To BY BYPASSED
STREfi,W FLVW BYVA55 DETAIL
-:44 EXHIBaT 16.
r4W
• Conditions of the 401 require that, "Any construction corridor that is parallel to a stream or open water shall not
be closer than 10 feet to the top of bank or ordinary high-water mark (15A NCAC 02H .0506(b); 15A NCAC 02H
.0507(c))". There are several proposed locations (Ex: Exhibit 14) of the 40 ft construction corridor that appear to
be at or within 10 feet of the top of bank. Please explain how this condition will be met with the proposed
easements or reduce/redesign these areas so that it will meet this condition.
• While statements were provided in the application for why HDD/jack and bore installation methods were not
feasible options for this project, the Division has significant concerns regarding open cut installation methods in
large stream systems. It is staff's experience that open cut installation methods within large streams are
extremely difficult to construct and maintain in a manner that ensures compliance with water quality
standards. Please provide very specific construction details for Stream 1, including proposed dewatering
methodology, expectation of encountering rock and methodology for removal of rock, expected construction
timeline, and additional measures proposed to ensure water quality protection during construction.
If you have any questions, please let me know.
Thank you,
Zach Thomas
Environmental Program Consultant, Division of Water Resources
North Carolina Department of Environmental Quality
Office: [phone]
[e-mail]
Raleigh Regional Office
1628 Mail Service Center
Raleigh, NC 27699-1628
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