20150485 Ver 1 _Revised Sheet 5 Buffer Authorization _20150528

C. Proposed Impacts Inventory
1. Buffer Impacts
1 a. Project is in which protected basin?
❑ Neuse
Tar - Pamlico ❑ Catawba
❑ Randleman ❑ Jordan
❑ Goose Creek
1 b. Individually list all buffer impacts below.
If any impacts require mitigation, then you MUST fill out Section
D of this
form.
Buffer impact
Reason for
Type of impact
Stream name
Buffer
Zone 1
Zone 2
number —
impact
(exempt, allowable,
mitigation
impact
impact
Permanent (P)
allowable w/ mitigation)
required?
(sq ft)
(sq ft)
or Temp ora T
B1 2 P ❑ T
Protection of
Allowable
Unnamed trib.
❑ Yes 9 No
988
1784
existing
to Brandy Creek
structures
B2 P ❑ T
Outlet pipe from
Allowable
Unnamed trib to
❑ Yes No
1160
372
wet detention
Brandy Creek
basin
B3 ❑ P ❑ T
❑ Yes ❑ No
B4 ❑ P ❑ T
❑ Yes ❑ No
B5 ❑ P ❑ T
❑ Yes ❑ No
B6 ❑ P ❑ T
❑ Yes ❑ No
Total buffer impacts
2148
2156
1c. Comments: Impact #2 now includes 15 ft wide maintenance access corridor
D. Impact Justification and Mitigation
1. Avoidance and Minimization
1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
61 - Rip rap outlet protection from the existing apartment complex pipe will only be installed outside of the 50'
buffer
B2 — Proposed wet detention basin has been designed to remove 90% TSS
1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.
131 and B2 - No heavy equipment will be utilized within the 50' buffer; construction sequence calls for contractor
to begin and complete work within 48 hours and only when dry weather is predicted
FORM: BA 10 -2013 Page 5 of 7