20140498 Ver 1_Local Government Buffer Authorization_20140620

t
North Carolina
fir- E Greensboro
Authorization Certificate
June 20, 2014
Mr. Danny Thompson, PE
CPT Engineering and Surveying, Inc.
4400Tyning Street
High Point, NC 27265
Re: Authorization Certification (Determination of No Practical Alternative) for Stream Buffer
Disturbance. Lafayette Landing Apartments and Villas
Dear Mr. Thompson:
In accordance with the State of North Carolina's Rule 15A NCAC 02B.0250- Randleman Lake
Water Suply Watershed, Protection and Maintenance of Riparian Areas, any applicant that
intends to disturb Zone 1 and Zone 2 of the stream buffer must show that there is "No Practical
Alternative" than to impact the stream buffer. The applicant submitted a "No Practical Alternative
Request" on June 20, 2014 stating that the stream buffer disturbances in Zone 1 and Zone 2 were
necessary for the construction of stream crossings to access the site, for a sanitary sewer crossing and for
the biocell outlets for the 7 stormwater controls and energy dissipaters for the site.
The City of Greensboro determined that the permanent impact of 22,544 square feet in Zone 1 and 13,980
square feet in Zone 2 of the Randleman Watersupply Watershed stream buffer were necessary for the
installation of two new access roads (Light Horse Lane, General Authors Lane), the upgrade of Ruffin
Road, a sanitary sewer connection for the site, energy dissipators and the permanently lined channels
from the exit pipes at the biocell to the receiving stream. In addition, the applicant should secure any
other required federal, state, and local certifications before the project proceeds.
Approved impacts included the following temporary and permanent disturbances:
Road Crossings
Light Horse Lane (113 LF)
General Authors Lane (124 LF)
Ruffin Road (122 LF)
Sewer Crossing (140 LF)
Biocells and Energy Disipators
Zone 1 = 5513 SF
Zone 1 = 5380 SF
Zone I= 7820 SF
Zone 1 = 1341 SF
Zone 2 = 3723 SF
Zone 2 = 2682 SF
Zone 2 = 3740 SF
Zone 2 = 2175 SF
Biocell 1: Zone 1 Temp. 450 SF Perm. 240 SF Zone 2 Temp. 300 SF Perm. 160 SF
Biocell 2: Zone 1 Temp. 450 SF Perm. 270 SF Zone 2 Temp. 300 SF Perm. 180 SF
Biocell 3: Zone 1 Temp. 450 SF Perm. 270 SF Zone 2 Temp. 300 SF Perm. 180 SF
Biocell 4: Zone 1 Temp. 450 SF Perm. 270 SF Zone 2 Temp. 300 SF Perm. 180 SF
Biocell 5: Zone 1 Temp. 450 SF Perm. 270 SF Zone 2 Temp. 300 SF Perm. 180 SF
Biocell 6: Zone 1 Temp. 450 SF Perm. 300 SF Zone 2 Temp. 300 SF Perm. 200 SF
Biocell 7: Zone 1 Temp. 450 SF Perm. 210 SF Zone 2 Temp. 300 SF Perm. 140 SF
P.O. Box 3136 o Greensboro, NC 27402 -3136 o www.greensboro - nc.gov .(336) 373 -CITY (24 89) o TTY # 333 -6930

FES 150: Zone 1 Temp. 450 SF Perm. 330 SF Zone 2 Temp. 300 SF Perm. 220 SF
FES 154b: Zone 1 Temp. 450 SF Perm. 330 SF Zone 2 Temp. 300 SF Perm. 220 SF
This approval is valid only for the purpose and design that was described in the application. If any
modifications are made to the project a written notification describing the changes, must be submitted to
the City of Greensboro Water Resources Department, Engineering Division (Stormwater Engineering
Section). If the property is sold, the new owner must be given a copy of the certification and approval
letter and is thereby responsible for complying with all conditions. In addition, the applicant should
secure any other required federal, state, and local certifications before the project proceeds.
This letter completes the review of The City of Greensboro, Water Resources Department,
Engineering Division (Stormwater Engineering Section) under the Determination of No Practical
Alternative. If you have any questions, please contact Virginia Spillman at 336- 373 -3260
Sincerely,
Virginia Spillman, PE
Engineering Supervisor Stormwater
Cc: Sue Homewood, DWQ Winston Salem Regional Office
U.S. Army Corps of Engineers, Raleigh Regulatory Field Office
Mr. Danny Thompson, PE