20181041 Ver 1_USACE Correspondence_20180822

Strickland, Bev
From: Bailey, David E CIV USARMY CESAW (US) < [e-mail] >
Sent: Wednesday, August 22, 2018 7:24 AM
To: Brad Luckey
Cc: Homewood, Sue; Eric Dischinger; Bob Dischinger
Subject: [External] RE: Request for Additional Information: Cambridge Park s/d, Mebane,
Alamance County; SAW -2017-02329
8/9/2018. As you note, resolution of item #2 is still pending.
Otherwise,
For item #4, please briefly describe where the proposed force main and waterline are coming from, outside of the
confines of the Cambridge Park development. It appears that both of these facilities are proposed rather than existing,
so we have to account for any potential impacts to aquatic resources. Will these facilities be installed within road
shoulder along their entire length? Will impacts be avoided by some other measure?
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 ► 5t
Phone: [phone], x
Fax: [phone]
We would appreciate your feedback on how we are performing our duties. Our automated Customer Service Survey is
located at: http://corpsmapu.usace.army.mil/cm_apex/f?p=136:4:0
Thank you for taking the time to visit this site and complete the survey.
From: Brad Luckey[mailto:[e-mail]]
Sent: Monday, August 13, 2018 4:50 PM
To: Bailey, David E CIV USARMY CESAW (US)<[e-mail]>
Cc: Homewood, Sue ([e-mail]) <[e-mail]>; Eric Dischinger
<[e-mail]>; Bob Dischinger <[e-mail]>
Subject: [Non-DoD Source] RE: Request for Additional Information: Cambridge Park s/d, Mebane, Alamance County;
SAW -2017-02329
David,

On behalf of the applicant, please find the below response to USACE Request for Additional Information Item #s 1 & 3-
7. As previously discussed, the applicant is evaluating options prior to responding to the USACE Request for Additional
Information of Item #2. Please let me know if you have any questions or require additional information. Thank you for
your assistance.
USACE Comment #1: Please submit a scanned/electronic copy of your PCN package
Applicant Response: Attached. Please note the PCN has been updated to clarify requested information in USACE
Comment #'s 3 &4.
USACE Comment #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
Applicant Response: The applicant will provide a response under separate cover.
USACE Comment #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
Applicant Response: Proposed stream impacts are 92LF. The attached PCN has been updated to resolve this
discrepancy.
USACE Comment #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.
Applicant Response: Please see attached PCN that includes updated impact exhibits that include a zoomed in plan sheet
for Phase IA and has removed layers to easily identify sanitary sewer connections.
USACE Comment #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.
Applicant Response: The entirety of the proposed sewer line is necessary to accommodate development of Phase
IA. Additionally, the City of Mebane is requiring the sanitary sewer line to be installed past Phase IA to Jones Road that
will provide current and future service to other properties to the northeast of the site.
USACE Comment #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

Applicant Response: Keyed in rip -rap is not proposed. The overall subdivision has been designed to allow for separate
maintenance access points on either side of proposed sewer line stream crossings. Therefore, a permanent easement
using rip -rap in streams for access is not necessary or proposed.
USACE Comment #7: 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
Applicant Response: During the zoning and special use permitting process for Cambridge Park, the City of Mebane
determined that Abington Drive would be required to be designed and constructed as a 'collector' roadway from Jones
Drive to Turner Road. As such, this road would need to be a curb and gutter road, 41' back-to-back within a 60' right-of-
way, with sidewalks along both sides. In addition, 'collector' roads, as opposed to 'local' residential roads, have
significantly more stringent design requirements in regard to horizontal alignments. This is due to the nature of the
'collector' road itself functioning as the main route for emergency services vehicular access into and out of the
subdivision as well as the requirement of handling the larger volumes of traffic in general. Realignment of Abington
Drive along Hardwick Drive would not meet these design requirements; therefore, the second stream crossing for
Abington Drive becomes necessary to fulfill the 'collector' requirements set forth by the City.
Sincerely,
Bradey S. Luckey, PWS
336.708.4997 (c)
336.310.4527 (o)
PO Box 128
Kernersville, NC 27285
www.11 iillotou viiuo.com
blucke l iillotou viii o.com
From: Bailey, David E CIV USARMY CESAW (US)[mailto:[e-mail]]
Sent: Thursday, August 9, 2018 2:54 PM
To: Brad Luckey <[e-mail]>; Eric Dischinger <[e-mail]>
Cc: Homewood, Sue ([e-mail]) <[e-mail]>
Subject: 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 (I Ica kedhtt ://saw -reg usa e army rn%I/NVlI 2 7/2 1 INVlI 2 df) and 29 (I Icr kedhtt ://saw
e:arrny mil/NW1�20 7✓..20.17_N_` .P29 �ad�). 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

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: Q7avi.d_:_E.:_B.ail_ey2_.(�,..u_sa_ce arrny...rnil
We would appreciate your feedback on how we are performing our duties. Our automated Customer Service Survey is
located at: Blocked_htt. _://...cors a u usa e:ar .Y.:_mil/c_ ....... /...( .p.�_136:4:0
Thank you for taking the time to visit this site and complete the survey.