20072022 Ver 2_More Info Received_20080617

offl@faw%
JUN 1 7 2008
2
DENR. WATER QUALITY
DS AND STORMWATER BRANCH
Will the project impact protected riparianVf ulliNers identified «ithin 15A NCAC 213 .02
(Neuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 0211 .0243 (Catawba) 15A NCAC
2B .0250 (Randleman Rules and Water Supple Buffer Requirements). or other (please
identify _)? Yes ® No ?
If "yes", identify the square feet and acreage of impact to each zone of the riparian buffers.
If buffer mitigation is required calculate the required amount of mitigation by applying the
buff r multipliers.

„

Lone Impact Impact

Multi Multiplier
p Require
d
_
_ suare f
etl (acres) Miti Batton

_
-
- ?,
--

-------- 58.985 1.354 3 (2 for Catawba) 23,493
--
2 - -
89,303 ?_? _.;
2.050 15 . - -. -..._ - ----- ---. ------
0
- Total 148,2H 3.404
--
23,493
/.one I extends out {u feet perpendicular trom the asp of the near hank of channel: Zone 2 extends an
additional 20 feet from the edge of Zone 1.
3. If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e..
Donation of Property, Riparian Buffer Restoration / Enhancement. or Payment into the
Riparian Buffer Restoration Fund). Please attach all appropriate information as identified
within 15A NCAC 213 .0242 or .0244, or .0260. For the miti anon requircd,_payment into
the Riparian Buffer Restoration Fund iswo-poses) (see attached). Mitigation includes imnacts
from utilitv lines parallel to the stream that encroach on Zone 1 Neuse buffers.
XI. Stormwater (required by DWQ)
Describe impervious acreage (existing and proposed) versus total acreage on the site. Discuss
stormwater controls proposed in order to protect surface waters and wetlands downstream from
the property. If percent impervious surface exceeds 20%, please provide calculations
demonstrating total proposed impervious level. There is no existing impervious area. Proposed
maximum built-out impervious is 24%_ of 422.60 acres, which is 101.42 acres. All stormwater
discharges will be diffuse flow, and peak post-development flows will match pre-development.
XIL Sewage Disposal (required by DWQ)
Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of
wastewater generated from the proposed project, or available capacity of the subject facility.
Sewerage generated by the proposed project will be piped to the City of Durham sanitary sewer
system and treated.
Updated 11/1/2005
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