20181041 Ver 1_USACE Correspondence_20180809

Strickland, Bev
From: Bailey, David E CIV USARMY CESAW (US) < [e-mail] >
Sent: Thursday, August 09, 2018 2:54 PM
To: Brad Luckey; Eric Dischinger
Cc: Homewood, Sue
Subject: [External] Request for Additional Information: Cambridge Park s/d, Mebane, Alamance
County; SAW -2017-02329
Messrs. Dischinger and Luckey,
Thank you for your PCN and attached information, dated 7/19/2018 (received 7/23/2018), for the above referenced
project. I have reviewed the information and need clarification before proceeding with verifying the use of Nationwide
Permits 12 (http://saw-reg.usace.army.mil/NWP2017/2017NWP12.pdf) and 29 (http://saw-
reg.usace.army.mil/NWP2017/2017NWP29.pdf). Please submit the requested information below (via e-mail is fine)
within 30 days of receipt of this Notification, otherwise we may deny verification of the use of the Nationwide Permit or
consider your application withdrawn and close the file:
1) Please submit a scanned/electronic copy of your PCN package;
2) Thank you for your detailed information regarding project phasing, including design level of each phase.
Although it appears as though Phase 1A has independent utility and could potentially be permitted ahead of
future phases, due to the high potential for future phases of the Cambridge Park development to include
cumulative stream impacts greater than the typical compensatory mitigation threshold (NWP Regional
Condition 3.2), the Corps has determined that the stream impacts currently proposed for Phase 1A will also
require compensatory mitigation(per NWP General Condition 23(d) and Regional Condition 3.2). Please update
Section D.2 of the PCN accordingly, including any relevant compensatory mitigation acceptance letters;
3) The PCN reports the Impact 1 permanent stream impacts due to the culvert as 92 Lf., whereas the plansheet
states 93 Lf. of permanent stream impacts due to the culvert. Please ensure consistency between the two and
correct as necessary;
4) Please provide a plansheet that clearly shows the overall location of the proposed Force Main and Sanitary
Sewer lines. The provided Overall plansheet is either not to sufficient scale, or has too many competing layers
for these features to be legible. For example, it is difficult to discern where the Force Main is coming from/going
to, and where the sanitary sewer connects with Phase 1A. It would also be helpful to provide a zoomed -in
plansheet for the entirety of Phase 1A;
5) Is the entirety of the sewer line as proposed necessary to accommodate development of Phase 1A, or could a
shorter segment of the sewer line be constructed to service this phase only? That is, we cannot evaluate the
road/lot infrastructure for Phase 1A only while evaluating the sewer infrastructure for the entire built -out
Cambridge Park development;
6) Is any rip rap proposed to be placed in streams at Impacts 3-5? If so, please revise the PCN to state that these
are permanent impact (though not a loss of waters), and provide a profile view of each of these crossings
showing that the rip rap would be keyed into the stream bed;
7) It appears that the stubout for Abington Drive points directly at Stream SG, which would require authorization
upon pursuit of a future phase. Please note that presence of an upland stubout road does not guarantee
authorization of a future proposed stream crossing. For example, it appears as though Hardwick Drive would
provide access to future phases without requiring impacts to aquatic resources.
Please let me know if you have any questions.

Sincerely,
Dave Bailey
David E. Bailey, PWS
Regulatory Project Manager
US Army Corps of Engineers
CE -SAW -RG -R
3331 Heritage Trade Drive, Suite 105
Wake Forest, North Carolina 27587
Phone: [phone], Ext. 30.
Fax: [phone]
Email: David. [e-mail]
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