SW4101202_HISTORICAL FILE_20110321

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW�&I%1 6O�
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLANS
)Xf HISTORICAL FILE
DOC DATE
YYYYMMDD

Permit dumber SW4101202
Program Category
State SW
Permit Type
State Stormwater
Primary Reviewer
cory.larsen
Coastal SW Rule
Permitted Flow
RECEIVED
N.C, Degt. of ENR
MAR 2 12011 Central Files: APS_ SWP—
Winston-Saie-c 02/17/11
Regional of
---------Permit Tracking Slip
Status Project Type
In review New Project
Version Permit Classification
Individual
Permit Contact Affiliation
Facility
Facility Name
MajorlMinor Region
Allen Precision, Inc.
Minor Winston-Salem
Location Address
County
End Of Veterans Loop Rd
Randolph
Asheboro NC 27203
F
Facility Contact Affiliation
George Powell
420 Industrial Dr
Asheboro NC
27205
Owner
Owner Name
Owner Type
Allen Precision
Non -Government
Owner Affiliation r
+
George Powell
420 Industrial Dr
NC
27205
Dates/EventsAsheboro
Scheduled
Orig Issue App Received Draft Initiated Issuance
Public Notice Issue Effective
Expiration
02/18/11 12/13/10
02/18/11 02/18/11
02/17121
Regulated Activities
Reauested/Received Events
State Stormwater - HD - Detention Pond
Deed restriction requested
Deed restriction received
Additional information requested
01 /13/11
Additional inlonnalion received
01/31/11
Additional information requested
02/10/11
Additional information received
02/16/11
Outfall NULL
Waterbody Name Stream Index Number Current Class Subbasin

Summey Engineering Associates, PLLC
Engineering • Land Planning • Consulting
P.O. Box 968
Asheboro, NC 27204
Phone: [phone] a Fax: [phone]
January 27, 2011
Mr. Cory Larsen
North Carolina Division of Water Quality
Stormwater Permitting Branch
1617 Mail Service Center
Raleigh, North Carolina 27604
Dear Cory:
Re: Allen Precision Industries, Inc.
Veterans Loop Rd - Asheboro, NC
Additional Information- SW4101202
Randolph County, NC
SEA Job No. E-1973
Q9c�12oeR�
JaN a i 2011
OENR • WATER OII&P
W@nAW W=RMINATERBRANCH
We are in receipt of your emailed comments dated January 13, 2011 concerning the Allen
Precision Stormwater Plan — SW 4101202 and offer the following responses in Bold type
below:
Comment/Response:
1) Affected drainage basins within the property area must be delineated and shown
on the plans — both pre- and post -development with C coefficients. Please
provide. Due to size of basin we have provided a separate sheet with the
revised calculations showing the pre and post developed drainage basins
with the C coefficients for each basin for your review. Please note that we
looked at the drainage point off the property for the Pre -developed flow and
only the Pond discharge point on the post developed since the remaining
area flows to same point.
2) According to Web Soil Survey, site soils consist of Georgeville Silt Loam, a
Group B soil with moderate to high Ksat values. Also, the SHWT is listed well
below the permanent pool elevation. In order to maintain the permanent pool at
design elevation, a liner or soil compaction is required to limit infiltration to a
maximum of 0.01 in/hr. Please revise as necessary, or alternatively, a soils
investigation and report may be provided to show otherwise. A note has been
provided on the plan instructing the contractor to compact the sides and
bottom of the pond and have tested by Soils engineer to ensure a maximum /
infiltration rate of 0.10 in/hr. l � 'A'r ri'l-c I's ��� /)
3) Regarding the vegetated shelf — the top of the shelf should be located at 804 ft
and bottom at 803 ft on the supplement. Additionally, seed mixes are not
allowed as substitutes for plantings. Veg. shelves must be planted at a rate of
50 plants per 200 SF of shelf with at least three species from Table 9-1 of the

BMP Manual. Please revise as appropriate. These items have been revised
as necessary. The pond has been made larger also.
4) Please revise the permanent pool volume listed on the supplement. The stage -
storage table shows it to be approximately 18,000 CIF at 803.5 ft. Also revise the
forebay volume as needed. This has been revised as required.
5) The rip rap baffle used to create the forebay should be shown on the wet pond
profile and the class of material and top elevation shown on the plans. This has
been added to the plans as requested.
6) A 2-inch drawdown orifice does not satisfy the orifice equation drawdown rate of
2-5 days. Please revise the diameter to 1.25 inch. This has been revised as
requested.
Enclosed are 2 sets of plans with revised calculations and supplements as neededyou're
your continued review. Please let me know if you need anything else to aid or assist in
your review of this project.
Very Truly Yours,
Summey Engineering Associates, PLLC
H. Mack Summey, Jr., PE
HMSJ/hmsj
Cc: Mr. Mike Troxler, Myrick Construction
File

Owner/Developer
Mr. Rick Powell
406 Industrial Drive
Asheboro, NC 27205
Contact: Mr. Rick Powell
Phone: [phone]
Prepared By.,
SUMMEY ENGINEERING ASSOCIATES, PLLC
ENGINEERING • LAND PLANNING • CONSULTING
P.O. BOX 968
ASHEBORO, NC 27204
Phone: [phone] Fax: [phone]
E-mail: [e-mail]
December, 2010

Project Narrative
Allen Precision Industries
Veterans Loop Road
Randolph County - Asheboro, NC
The purpose of this narrative is to briefly describe the development of a new Manufacturing Facility
located at the end of Veterans Loop Road in Asheboro, NC.
This stormwater management plan is the result of the site being Tipped into the NPDES Phase II
regulations and as a result must comply with the Post Construction Rules.
The existing 19.10 acre site was originally grassed & wooded and approx. 500 If of Veterans Loop
Road has been closed and the right of way absorbed into the property area. The road will be removed
and a building approx. 50,000 sf in size will be constructed. A future add on of approx. 15,000 sf is
planned for the building and this impervious area is included within our calculations. The existing
topography slopes primarily from the Northeast Corner of the property toward the southwest corner of
the property. No wetlands or perennial streams are disturbed in the proposed grading and construction
operation. There is no offsite drainage that flows thru the site and to the proposed detention pond that
will serve as the sites BMP for stormwater treatment. -
The proposed development consists of clearing, grubbing & grading approximately 10.0 acres and
placing a building near the north center of the property. There is no other existing Built Upon area
except the road on the property.
All the proposed built upon area is captured and directed to the Wet Detention Pond and treated. The
pond is sized to remove 90% TSS from the runoff. The future building additions BUA will also be
directed to the pond for treatment.
The site has been approved by the City of Asheboro Planning and Engineering Departments and the
NCDENR-Division of Land Quality. Please see the attached plans, calculations and details for more
information.

;MN
4-11m PV'eCj'S7E o,)
/ IL— V10O 1
cw�

PERMANENT WET DETENTION POND DESIGN - RISER/BARREL
CHECKED BY: hmsj
DATE: 1/27/2011
TOTAL SITE AREA =
18.56 acres
PROPOSED BUILT UPON AREA =
2.61 acres
FUTURE BUILT UPON AREA -
0.00 acres
TOTAL ON -SITE BUILT UPON AREA =
2.61 acres
PERCENT BUILT -UPON =
14.06%
J-SITE DRAINAGE AREA TO POND =
4.67 acres
J-SITE BUA TO POND =
2.74 acres
JSITE °% BUA FOR POND SUB -BASIN =
58.67%
'F-SITE DRAINAGE AREA TO POND =
0.00 acres
)TAL WATERSHED AREA TO POND =
4.67 acres
3TURBED AREA =
4.67 acres
:F-SITE B.U.A. TO POND =
0.00 acres
OF OFF -SITE B.U.A. TO POND =
0.0 %
)TAL B.U.A. TO POND
2.74 acres
)MPOSITE B.U. %=
58.67%
[MP. SED. STOR. USED (YIN)
Y
TEMPORARY SEDIMENT STORAGE
0.5 acre -inch per d �siurbed acre
PERMANENT SEDIMENT STORAGE
0.125 acre -in per total drainage area
PERMANENT WATER QUALITY
DEPTH (minimum 3 teat)
3.0 feet
SAIDA
3.43 percent
1.0 Inch rainfall to be controlled
TYPE
X corrugated aluminum
reinforced concrete
DESIGN STORM
10 year
RAINFALL INTENSITY
2.32 inches per hour
RUNOFF COEFFICIENT (POST)
0.85
TYPE
X grass lined
rip -rap lined
DESIGN STORM
100 year
RAINFALL INTENSITY
3.4 inches per hour
RUNOFF COEFFICIENT
0.85
POND DATA
ELEV. @ BOT. OF POND =
799.00
SURFACE AREA = 2635 SF
ELEV. @ BOT. OF PSS =
799.00
SURFACE AREA = 2635 SF
ELEV. @ SOT. OF PWQ =
800.50
SURFACE AREA = 3730 SF
ELEV, @ NORMAL POOL =
803.50
SURFACE AREA = 7447 SF
ELEV. @ TOP. OF RISER =
805.00
SURFACE AREA = 10371 SF
ELEV. @ EMER. SPILLWAY =
806.00
ELEV. a TOP OF DAM =
807.00
INVERT OF BARREL =
801.00
ELEV. @ BOT. OF PSS = 799.00 SURFACE AREA =
ELEV. @ BOT. OFPWQ= 800.50 3URFACEAREA =
VOLUME PROVIDED=
2635 Square
3730 Square
OK
'ERMANENT WATER QUALITY SURFACE AREA R_E_VD 6977 Square Fee
)RMAL POOL ELEVATION = 803.5
JRFACE AREA PROVIDED = 7447 Square FeE
OI
Rv =
VOLUME REQUIRED=
ELEV. ® BOT. OF TWO = 803.50 iURFACE AREA =
ELEV. g TOP OF TWQ = 905.00 SURFACE AREA =
VOLUME PROVIDED =
0.578
7447 Square Feet
10371 Square Feet
Page V364T Cubic Feet
Add 2700 st extra BUA for 10 parking spaces to pond
ALLEN PRECISION POND-REV-1-24-2011.x1s

OK
PRINCIPAL SPILLWAY
MAX. PEAK FLOW =
4.0 CFS
HEAD ABOVE TOP OF RISER =
0.36 h
ELEVATION AT TOP OF RISER =
805.00
BARREL:
BARREL SIZE USED (in) =
15.00 in. dia.
ELEVATION AT TOP OF RISER =
805.00
ELEVATION OF BARREL INVERT =
801
Hw PROVIDED =
4.36 ft
Hw/D PROVIDED=
3.485500686
Hw/D REQ'D. FOR DESIGN STORM (FROM CHART) =
0.65
Hw REQUIRED =
0.81 n
CHECK CULVERT (INLET CONTROL) =
OK
Q (FROM CHART) AT HWID PROVIDED =
55.0 CFS
RISER: RISER AREA = 1.5 TIMES AREA OF:
15.00 In. dia.
MIN. RISER DIA. =
18.37 in. dia.
RISER DIA.USED =
24 in. dia.
WEIR EQUATION: Qw= 4.5 CFS
OK
ORIFICE EQUATION: Qo = 9.0 CPS
OK
Ow CONTROLS 4.6 CFS
RISER CONTROLS
4.5 CFS
PRINCIPAL SPILLWAY SYSTEM:
OK
WATER QUALITY RELEASE HOLE
ELEV. 9 BOT.OF WATER QUALITY RELEASE HOLE =
803.60
MAXIMUM RELEASE RATE=
2 Days
MINIMUM RELEASE RATE =
5 Days
MAXIMUM HOLE SIZE = 0.02622809
2.19 in. dia.
MINIMUM HOLE SIZE = 0.010491236
1.39 in. dia.
ELEV, @ EMER. SPILLWAY =
806.00
DESIGN STORM PEAK FLOW =
13.5 CFS
FLOW THROUGH EMER. SPILLWAY =
9.5 CFS
EMER. SPILLWAY SIDE SLOPES (ie 3 it 3.1, 0 if vertical) ;
3
FLOW DEPTH =
1.00 h
VELOCITY (fUsec) =
2.27
TRACTIVE FORCE (Ib/hA2) =
1.25
BOTTOM WIDTH REQUIRED=
1.29 h
Page 2 ALLEN PRECISION POND-REV-1-24-2011.xls

ELEV. @ TOP OF RISER =
ELEV. @ BOT. OF PSS
H=
AREA OF RISER =
VOLUME OF RISER =
AREA OF BARREL =
EXPOSED LENGTH =
VOLUME OF BARREL =
WEIGHT OF WATER DISPLACED =
FACTOR OF SAFETY (1.25%)
VOLUME OF ANCHOR PROVIDED -
VOLUME OF ANCHOR REQUIRED =
PROJECT:
Drainage Area:
Disturbed Area:
Impervious Surface:
% Impervious:
Pool Volume Req'd.:
Soils (A,B,C, or D):
Scs Curve Number:
805.00
799.00
6.00 ft
3.1 SF
18.8 Cubic Feet
1.2 SF
10.00 It
12.3 Cubic Feet
32.0 Cubic Feet
16.2 Cubic Feet
POND ROUTING (CHAINSAW METHOD)
ALLEN PRECISION
4.67 acres
4.67 acres
2.74 acres
58.7 %
1.20 irVacre
C
88
1941.98 lb
2427,47 lb'
STORM EVENT
_
„'(Inthr)
A
(acre) ..
Q.
(cfs)
10 Year re- ve a ment
0.30
5.79
4.67
8.11
10 Year Peat Dave o ment
0,85
4.67
4.02
100 Year Post -Development
0.85
4.67
9.46
Temp. Sediment Storage Volume:
1/2 ac'in/ac
ss=(area'O.5'43560)/12=
8,476.05 of
Perm. Sediment Storage Volume:
1/8 ac'irVac
ss=(area'0.125'43560)112=
2,119 of
Permanent Pool Volume:
pp=(area'factor'43560)/12=
20,343 of
Total Pond Volume:
TPV=
30,938 of
Toe of Dam Elevation:
799.00
Top of Dam Elevation:
807.00
Dam Width:
10
Riser
Diameter of riser=
24.00 in
Efev, of riser top=
805.00 ft
ow at riser=
3.00
Cd at riser--
0.60
Trash Rack=
48.00 in.
Barrel
Diameter of barrel=
15.00 in
Inv. in=
801.00 ft
Inv. Out=
799.00
Length of barrel=
82.00 ft
Cdb=
0.60
Slope=
3,23%
Emergency Spillway
Gww- 3.00
Ecr= 806.00 ft
Dam width= 10.00 h
Page 3
10-YEAR FLOW AFTER ROUTING
IDO-YEAR FLOW AFTER ROUTING
Ks= 2625.57 a= 7.87
b= 1.42
ALLEN PRECISION POND-REV-1-24-2011.xls

Side Slope (Hor to Vert) 3 :1
Bottom Width in Feet (Lw) 10
Slope in % 0.01 = 0.0001
Manning n 0.062
Depth (ft) -0,28 EMERGENCY SPILLWAY NOT ACTIVATED DURING 100-YEAR EVENT
Flow (Cfs) 0.00
Velocity (tysec) 0.00
Tractive Force (lb/ft' 0.00
Anti -flotation Device
Riser Height (ft.): 4
Barrel Length to Dam (h.): 10
Weight of Water Displaced by Riser (lb): 784
Weight of Water Displaced by Barrel (lb): 765
Weight of Water Displaced by Concrete (lb.)! 0
TOTAL: 1549
Weight of Concrete Block (lb.): 4800
Factor of Safety: 3.10
Size of Anti -seep Collars (in.) 51
Stage Storage Function
ontourz, „
ontour,
Area
ft(Cu
ncr
.Vol
ft(Cu
ccum'.„`'a
Vol; '
ft
InS=
InZ
Stage
(ft)
est
(n).
799.00
2635.00
800,00
3344.00
2989.5
2989.5
8.00
0.00
1.0
1.1
801.00
4116.00
3730.0
6719.5
8.81
0.69
2.0
1.9
802.00
4948.00
4532.0
11251.5
9.33
1.10
3.0
2.8
803,00
5838.00
5393.0
16644.5
9.72
1.39
4.0
3.7
804.00
9218,00
7528.0
24172.5
10,09
1.61
5.0
4.8
805.00
10371.00
9794.5
33967.0
10.43
1.79
6.0
6.1
806.00
11526.00
10948.5
44915.5
10.71
1.95
7.0
7.4
91
807.00
12786.00
12156.0
57071.5
10.95
2.08
8.0
8.7
I
i
I
I
I
1
Page 4 ALLEN PRECISION POND-REV-1-24-2011.x1s

Routing 10 Year Storm
MAX STAGE ELEV.: 805.36 P= 2.32
MAX FLOW CFS: 4.02 i= 2.32
PRE -DEVELOPMENT FLOW CFS: 8.11 Tp= 27.12 First Time Step=
s= 1.36 Time Step= 2.71
O'= 1.23
Time
min
lhtlow.,
cfs
W' Storage
cu ft
Stage
ft -
Outflow
Cfs
Riser
weir
cfs .
Riser
Odface
cfs .:
Barrel
prilace
cfs
Hydraulic
Grade fine
cis
Emergency
' Spillway
! cfs
0.00
0.00
22258.30
803,50
0.00
0,00
0.00
0.00
7.74
0.00
1.00
0.03
22258.30
803.50
0.00
0.00
0.00
0,00
7.74
0.00
3.71
0.42
22263.32
803,50
0.00
0.00
0.00
0.00
7,74
0.00
6.42
1.22
22331.53
803,51
0,00
0.00
0.00
0.00
7.75
0.00
9.14
2.35
22529.61
803.54
0.00
0.00
0.00
0,00
7,77
0.00
11.85
3.70
22911.49
803.59
0.00
0.00
0.00
0.00
7.62
0.00
14.56
5.14
23513.17
803,68
0.00
0.00
0.00
0.00
7.89
0.00
17.27
6.52
24349.08
803.79
0.00
0.00
0.00
0.00
7.99
0.00
19.99
7.72
25410.75
803.94
0.00
0.00
0.00
0.00
8.11
0,00
22.70
0.62
26667.60
804,11
0.00
0.00
0.00
0.00
8.25
0.00
25.41
9.12
28069.95
804.30
0.00
0.00
0.00
0.00
8.40
0.00
28.12
9.18
29553.88
804.49
0.00
0.00
0.00
0.00
8.55
0,00
30.83
8.79
31047.48
804.69
0,00
0.00
0.00
0.00
8.70
0.00
33.55
7.99
32477.89
804.87
0.00
0.00
0.00
0.00
8,84
0.00
36.26
7.03
33778.43
805.04
0.12
0.12
2.83
10.91
8.96
0,00
38.97
6.17
34902.22
805,18
1.39
1.39
6.34
11.13
9.07
0.00
41.68
5.42
35680.81
805.27
2.68
2.68
7.89
11.28
9.14
0.00
44.39
4.76
36126.94
805.33
3.53
3.53
1 8.66
11.37
9.18
0.00
47,11
4.18
36326.81
805.35
3.94
3.94
8.97
11.41
9.19
0.00
49.82
3.67
36366.25
805,36
4.02
4.02
9,04
11.41
9.20
0.00
52.53
3.22
36309.50
805.35
3.90
3.90
8.95
11,40
9,19
0.00
55,24
2.83
36199.04
805.34
3.68
3.68
8.77
11.38
9.18
0.00
57.96
2.48
36061.31
805.32
3,40
3,40
8.55
11.36
9.17
0.00
60.67
2.18
35912.16
805.30
3.11
3.11
8.30
11.33
9.16
0.00
63,38
1.92
35760.87
805.28
2.83
2.83
1 8.04
11.30
9.14
1 0.00
66.09
1.68
35612.74
805.26
2.56
2,56
7.77
11.27
9.13
0.00
68.80
1.48
35470.65
805.25
2.30
2.30
7.51
11.24
9.12
0.00
71,52
1.30
35336.08
805.23
2,07
2.07
7.25
11.22
9.11
0.00
74.23
1.14
35209.65
805.21
1.87
1,87
7,00
11.19
9.09
0.00
76.94
1.00
35091.50
805.20
1.68
1.68
6.75
11,17
9,08
0.00
79,65
0.88
34981.45
805.19
1.51
1.51
6.52
11.15
9.07
0.00
82.36
0.77
34879.18
605.17
1.35
1.35
6.29
11.13
9.06
0.00
85.08
0.68
34784.28
805.16
1.22
1.22
6.07
11.11
1 9,05
0.00
87.79
0.59
34696.31
805.15
1.10
1.10
5.86
11.09
9.05
0.00
90.50
0.52
34614.80
805.14
0.99
0.99
5.66
11.08
R04
0.00
93.21
0.46
34539.32
805.13
0.89
0.89
5.46
11.06
9.03
0.00
95.93
0.40
34469.42
805.12
0.80
0.80
5.28
11.05
9.03
0.00
98.64
0.35
34404,69
805,11
0.72
0,72
5.10
11.04
9.02
0.00
101.35
0.31
34344.74
805.11
0.65
0.65
4.93
11.02
9,01
0.00
104.06
0.27
34289.22
805.10
0.59
0.59
4.76
11.01
9.01
0.00
106.77
0.24
34237.78
805.09
0.53
0.53
4,61
11.00
9,00
0.00
109.49
0.21
34190.11
805.09
0.48
0.48
4.46
10.99
9.00
0.00
112.20
0.18
34145.92
805.08
0.44
0.44
4.31
10.99
9.00
0.00
114.91
0.16
34104.95
805.08
0.40
0.40
4.17
10.98
8.99
0.00
117.62
0.14
34066.94
805,07
0,36
0.36
4.04
10.97
8.99
0.00
120.33
0.12
34031.67
805.07
0.33
0.33
3,91
10.96
8.99
0.00
123.05
0.11
33998.93
805.06
0.30
0.30
3.79
10.96
8.98
0,00
125.76
0A0
33968.52
805,06
0,27
0,27
3.67
10.95
8.98
0.00
128.47
0.08
33940.27
805.06
0.25
0.25
3.56
10.94
8.98
0.00
131.18
0.07
33914.01
805.05
0.22
0.22
3.45
10.94
8,97
0,00
133.90
0.07
33889.59
805.05
0.20
0.20
3.35
10.93
8.97
0.00
136.61
0.06
33866.87
805.05
0.19
0.19
3,25
10.93
8.97
0.00
139.32
0.05
33845.72
805.04
0.17
0.17
3.16
10.93
8.97
0.00
142.03
0.04
33826.02
805.04
0.16
0.16
3.07
10.92
8.97
0.00
144.74
0.04
33807.67
805.04
0.14
0.14
2.98
10.92
8.96
0,00
147.46
0.03
33790.57
805,04
0.13
0.13
2.89
10.91
8.96
0.00
150.17
0.03
33774.61
805.03
0.12
0.12
2.81
10.91
8.96
0,00
152.88
0.03
33759.72
805,03
0.11
0,11
2.74
10.91
8.96
0.00
155.59
0.02
33745.82
805.03
0.10
0.10
2.66
10.91
8,96
0,00
158.31
0.02
33732.84
805,03
0,09
0.09
2.59
10.90
8.96
0.00
161.02
0.02
33720.70
805.03
0.09
0.09
2,52
10.90
8.96
0.00
163.73
0.02
33709.35
805.03
0.08
0.08
2.46
10.90
8.96
0.00
166.44
0.01
33698.73
805.03
0.07
0,07
2.40
10.90
8.95
0.00
169.15
0.01
33688.78
805.02
0.07
0.07
2.33
10.89
8,95
0.00
171.87
0.01
33679.46
805.02
0.06
0.06
2.28
10.89
8.95
0.00
174.58
0.01
33670.73
805.02
0.06
0.06
2.22
10.89
8.95
0.00
177.29
0.01
33662.54
805.02
0.06
0.06
2.17
10.89
8.95
0.00
180.00
0,01
33654.85
805.02
0.05
0.05
2.11
10.89
8,95
Q.QO
182.71
0.01
33647.63
805.02
0.05
0.05
2.07
10.89
8,95
0.00
185.43
0.01
33640.85
805.02
0.04
0.04
2.02
10.88
8.95
0.00
188.14
0.00
33634.47
805.Q2
0"
0,04
1.97
10.88
8.95
0.00
190.85
0.00
33628.47
805.02
0.04
0.04
1.93
10.88
8.95
O.00
193.56
0.00
33622.82
805.02
0.04
0.04
8. 5
Q.00

196.28
0.00
33617.50
805.01
0.03
0.03
1.84
10.88
8.95
0.00
198.99
0.00
33612.48
805.01
0.03
0.03
1.80
10.88
8.95
0.00
201,70
0,00
33607.75
805.01
0.03
0.03
1.77
10.88
8,95
0.00
204.41
0.00
336 3.29
805.01
0.03
0.03
1.73
iQ.88
8.95
0766
207.12
0.00
33599.07
805.01
0.03
0.03
1.69
10.88
8.95
0.00
209,84
0.00
33595.09
805.01
0.02
0.02
1.66
10.87
8.94
0.
212,55
0,00
33591.32
805.01
0.02
0.02
1.63
10.87
8.94
a00
215.26
0.00
33587.76
805.01
0.02
0.02
1.59
10.87
8.94
0,00
217.97
0.00
33584.39
805.01
0.02
0.02
1.56
10.87
8.94
0.00
220.68
0.00
33561.19
805.01
0.02
0.02
1.53
10.87
8.94
0.00
223.40
0,00
33578.16
805.01
0.02
0.02
1.50
10.87
8.94
0,00
226.11
0.00
33575.29
805.01
0.02
0.02
1.48
10.87
8.94
0. 0
228.82
0.00
33572.56
805.01
0.02
0.02
1,45
10.87
8.94
0.00
231.53
0.00
33569.97
805.01
0.02
0.02
1.42
10.87
8.94
0,00
234.25
0.00
33567.51
805.01
0.01
0.01
1.40
10.87
8.94
0.00
236.96
0.00
33565.17
805.01
0.01
0.01
1.37
10.87
8.94
0.00
239.67
0.00
33562.95
805.01
0.01
0.01
1.35
10.87
8.94
a00
242.38
0.00
33560.83
805.01
0.01
0.01
1.33
10.87
8.94
0.00
245.09
0.00
33558.81
805.01
0.01
0.01
1.31
10,87
B.94
&00
247.81
O.QO
33556.89
805.01
0.01
0.01
1.2B
10.87
8,94
0.00
250.52
0.DO
33555.05
805.01
0.01
0.01
1.26
10.87
B.94
0.00
253,23
0.00
33553.30
805.01
0.01
0.01
1.24
10.67
8.94
0.00
255.94
0.00
33551.63
805.01
0.01
0.01
1.22
10,87
B.94
0.00
25B.65
0.00
33550.04
805.01
0.01
0.01
1.21
10.B7
8.94
0.00
261.37
0.00
33548.51
805.01
0.01
0.01
1.19
10.87
8.94
0.00
264.08
0.00
33547.05
805.01
0.01
0.01
1.17
10.86
8.94
0.00
266,79
0.00
33545.66
805.01
0.01
0.01
1.15
10.86
8.94
0.00
269.50
0.00
33544.32
805.01
0.01
0.01
1.14
10.86
8.94
0.00
272.22
0.00
33543.04
805.01
0.01
0.01
1.12
10.86
8.94
0.00
274.93
0,00
33541.81
805.01
0.01
0.01
1.10
1Q.86
8.94
0.00
277.64
0.00
33540.64
805.01
0.01
0.01
1.09
10.86
8.94
0.00
280.35
0.00
33539.51
805.01
0.01
0.61
1.07
10.86
8.94
D.DO
283.06
0.00
33538.43
805,00
0.01
0.01
1.06
10.86
8.94
0.00
285.78
0.00
33537.39
805.00
0.01
0.01
1.04
10.86
8.94
O.00
288.49
0.00
33536.39
805.00
O.D1
0.01
1.03
10.86
8.94
0.00
291.20
0.00
33535.43
805A0
0.01
0.01
1.02
10,85
8.94
O.OQ
Page 6 ALLEN PRECISION POND-REV-1-24-2011.xls

Routing 100 Year Storm
P= 3,40
MAX STAGE: 805,72 i= 3,40
MAX FLOW: 946 Tp= 32.80 First Time Step- 1
s= 1.36 Time Step- 3.28
Q.= 2.18
Time
min
Inflow '
cfs
storage
cu ft
u Stage"
ft
F, Outflow'
cfs
FuserRiser
Weir
cfs
Oriface'
cfs)
rre
Oriface
(cfs)
rois
Grade Line
Acfs
Emergency
Spillway .
90
0.00
0.00
22258.30
803.50
0.00
0.00
0.00
0.00
7.74
1,00
0.03
22258.30
803.50
0.00
0.00
0.00
0.00
7.74
0,00
4.28
0.56
22264.39
803.50
0.00
0.00
0.00
0.00
7.74
0.00
7.56
1.69
22374.42
803.52
0.00
0,00
0.00
0.00
7.75
0.00
10.84
3.32
22707.61
803.56
0.00
0.00
0.00
0.00
7.79
0.00
14,12
5.29
23361.33
803.66
0.00
0.00
0.00
0.00
7.87
0:00
17.40
7.39
24401.58
803.BO
0.00
0.00
0.00
0.00
7.99
0.00
20.68
9.44
25856,52
804.00
0.00
OAO
0,00
0.00
8.16
OAO
23.96
11,22
27713.72
804.25
0.00
0.00
0.00
0.00
8.36
0,00
27.24
12.56
29921.37
804.54
0.00
0.00
0.00
0.00
8.59
0.00
30,52
13.34
32393.35
804.86
0.00
0.00
0.00
0.00
8.83
0.00
3180
13,47
35017.69
805.19
1.56
1.56
6.59
11.16
9.08
0.00
3T08
12.94
37360.10
805.48
6.24
6.24
10.47
11.60
9.29
0.00
40,36
11.80
38677.65
805.64
9.40
9.62
12.09
11.84
9,40
0.00
43.64
10.39
39150.71
805.70
9.44
10.94
12.62
11.92
9.44
0.00
46.92
9.12
39337.37
805.72
9.46
11,47
12.82
11.95
9.46
0.00
50.20
8.01
39271.72
805.71
9.45
11.28
12.75
11,94
9.45
0.00
53A8
7.03
38988.34
805.68
9.43
1OA8
12A4
11.89
9.43
0.00
56.76
6.18
38517.55
805.62
9.19
9.19
11.90
11.81
9.39
0.00
60.04
5.42
37925.38
805.55
7.64
7.64
11.19
11.70
9.33
O
63,32
4.76
374 0.02
805.49
6.55
6.55
M64
11.62
9.30
0.00
66.59
4.18
37137.31
805.45
5.72
5.72
10.16
11.56
9.27
0.00
69.87
3.67
36835.10
805.41
5.03
5.03
9.74
11.50
9.24
0.00
73.15
3.22
36567.99
805.38
4.44
4,44
9.35
11.45
9.22
0.00
76.43
2.83
36327.81
805.35
3.94
3.94
8.98
11.41
9.19
0.00
79.71
2.49
86109.79
805.33
3.50
3.50
8.63
11.37
9.17
0.00
82.99
2.18
35910.79
805.30
3.11
3,11
8.30
11.33
9.16
0.00
86.27
1,92
35728.57
805.28
2.77
2.77
7.98
11.29
9,14
0.00
89.55
1.68
35561.39
80U6
2.46
2.48
7.68
11.26
9.13
0.00
92.83
1.48
35407.79
805.24
2.20
2.20
7.39
11.23
9.11
0,00
96.11
1.30
35266.55
805.22
1.96
1.96
7.11
11.21
9.10
OAO
99.39
1.14
35136.58
805.20
1.75
1.75
6.85
11.18
9.09
OAO
102.67
1.00
35016.92
805,19
1.56
1.56
6.59
11.16
9.08
0,00
105.95
0.88
34906.70
805.18
1.39
1.39
6.35
11.14
9.07
0.00
109.23
0.77
34805,13
805,16
1.25
1.25
6.12
11 A 2
9.06
0.00
112,51
0.68
34711.50
805.15
1.12
1.12
5.90
11 A O
9.05
07O
115.79
0.59
34625.16
805.14
1.00
1.00
5.68
11.08
9.04
0.00
119.07
0.52
34545.50
805.13
0.90
0.90
5.48
11.06
9.03
0.00
122.35
0.46
34471.99
805.12
0.80
0.80
5.28
11.05
9.03
0.00
125.63
0.40
34404.14
805.11
0.72
0.72
5.10
11.04
9,02
0,00
128.91
0.35
34341.47
805.11
0.65
0.65
4.92
11.02
9.01
0.00
132.19
0.31
34283.59
805.10
0.58
0.58
4.75
11.01
9.01
0.00
135.47
0.27
342 0.09
805.09
0.52
0.52
4.58
11,00
9.00
0.00
138.75
0.24
34180.64
805.09
0.47
0.47
1 4.43
10.99
9.00
030
142.03
0.21
34134.91
805.08
0.43
0.43
1 4.27
10.98
8.99
0.00
145.31
0.18
34092.60
805.07
0.38
0.38
4.13
10.97
8.99
0.00
148.59
0.16
34053.45
805.07
0.35
0,35
3.99
10.97
8.99
0.00
151.87
0.14
34017.20
805.07
0.31
0.31
3.86
10.96
8.98
0.00
155.15
0.13
33983.63
805.06
0.28
0.28
3.73
10,95
8.98
0.
158.43
0,11
33952.52
805.06
0.26
0.26
3.61
10.95
8.98
0.00
161.71
0.10
33923.69
805.05
0.23
0.23
3.49
10.94
8.98
0.00
164.99
0,08
33896.96
805 05
0.21
0.21
3.38
10.94
8,97
0.00
168.27
0.07
33872A5
805.05
0.19
0.19
3.27
10.93
1 8.97
0,00
171.55
0.07
33849.14
805A4
0.17
0.17
3.17
10.93
1 8.97
0.00
174,83
0.06
33827,77
805.04
0.16
0.16
3.07
10.92
8.97
0.00
178.11
0.05
33807.91
805A4
0.14
0.14
2.98
10.92
8.96
0,00
181.39
0.04
33789.47
805.04
0.13
0.13
2.89
10.91
8.96
0.00
184.67
0.04
3377Z31
805.03
0.12
0.12
1 2.80
10.91
8.96
0.00
187.95
0.03
33756,36
805,03
0.11
0.11
2.72
10.91
8.96
0.00
191.23
0.03
33741,51
805,03
0.10
0.10
2.64
10.90
8.96
0,00
194.50
0.03
33727.69
805.03
0.09
0.09
2.56
10.90
8.96
0.00
197.78
0.02
33714.81
805,03
O.OB
0.08
2.49
10,90
8.96
0.00
201.06
0.02
33702.81
805.03
0.08
0.08
2.42
10.90
8.95
0.00
204.34
0.02
33691.61
805.02
0.07
0.07
2.35
10.89
8.95
0.00
207.62
0.02
33681.17
805.02
0.07
0.07
2.29
10,89
8.95
0,00
210.90
0.01
33671.42
805.02
0.06
0.06
2.22
10.89
8.95
0.00
214.18
0.01
33662.32
805.02
0.00
0.06
2.17
10,89
8.95
0.00
217.46
0.01
33653.81
SOSA2
0.05
0.05
2.11
10.89
8.95
0,00
220.74
0.01
33645.85
805.02
0.05
0.05
2.05
10.88
8.95
0.00
224.02
0.01
33638.41
805.02
0.04
0.04
2.00
10,88
8.95
0.00
227.30
0.01
33631.44
805.02
0.04
0.04
1.95
10.88-1
8.95
0.00
230.58
0.01
33624.92
805.02
0.04
0.04
1.90
10.88
1 8.95
0.00
233,B6
0.01
33618.80
805.02
0.03
1 0.03 J,
1
1 PlU
L, 18.qq
Q..GO

237.14
0.00
33613.06
805.01
0.03
0.03
1.81
%88
8.95
0.00
240.42
0.00
33607.68
805.01
0.03
0.03
1.76
10.88
8.95
0,00
243.70
0.00
33602.63
805,01
0.03
0.03
1.72
10.88
8.95
0.00
246.98
0.00
33597.08
805.01
0.03
0.03
1.68
10.88
8.94
0.00
250.26
0.00
33593.42
805.01
0.02
0.02
1.64
10.87
8.94
0.00
253.54
0.00
33589.22
805.01
0.02
0,02
1.61
10.87
8.94
0,00
256.82
0.00
33585.27
805.01
0.02
0.02
1.57
1 10.87
8.94
0.00
260.10
0.00
33581.56
805.01
0.02
0.02
1.54
10.87
8.94
0.00
263.38
0.00
33578.05
805.01
0.02
0.02
1.50
10.87
8.94
0.00
266.66
0.00
33574,74
805.01
0.02
0.02
1.47
10.87
8.94
0.00
269.94
0.00
33571.63
805,01
0.02
0.02
1.44
10.87
8.94
0.00
273.22
0.00
33568.68
805.01
0.02
0.02
1.41
10.87
8.94
0.00
276.50
0.00
33565.90
805.01
0.01
0.01
1.38
10.87
8,94
0.00
279.78
0.00
33563,27
805.01
0.01
0.01
1.35
10.07
8.94
0.00
283.06
0.00
33560.78
805.01
0.01
0.01
1.33
10.87
8.94
0.00
286.34
0.00
33558,43
805.01
0.01
0.01
1.30
10.87
8,94
0.00
289.62
0.00
33556,20
805.01
0.01
0.01
1.28
10.87
8.94
0.00
292.90
0.00
33554.09
805.01
0.01
0.01
1.25
10.87
8.94
0.00
296.18
0.00
33552.08
805.01
0.01
0.01
1.23
10.87
8.94
0.00
299.46
0.00
33550.18
805.01
0.01
0.01
1,21
10.87
8.94
0.00
302.74
0.00
33548.38
805.01
0.01
0.01
1.19
10,87
8,94
0.00
306.02
0.00
33546.66
805.01
0.01
0,01
1.18
10.86
8.94
0.00
309.30
0,00
33545.03
805.01
0.01
0.01
1,14
10.86
8.94
0.00
312.58
0.00
33543.48
805.01
0.01
0.01
1.12
10.86
8.94
0.
315.86
0.00
33542.01
805.01
0.01
0.01
1.11
10.86
8.94
0.00
319.14
0.00
33540.60
805,01
0.01
0.01
1.09
10.86
8.94
0.00
322.41
0.00
33539.26
805.00
0.01
0.01
1.07
10.86
8.94
0.00
325.69
0.00
33537.99
805.00
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355.21
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33526.78
805.00
0.00
0.00
0.92
10,6fi
5.94
0.00
Page 8 ALLEN PRECISION POND-REV-1-24-2011.xls

North Carolina
Elaine F. Marshall DEPARTMENTOF THE
Secretary SECRETARY OF STATE
`,,~;; ``=:: --• "� •>`�
PO Box 29622 Raleigh, NC 27626-0622 (91918(17.2000
Date: 12/6/2010
Click here to:
View Document Filings I Sign Up for E-Notifications l
J Print apre-populated Annual Report Form I Annual Report Count I File an Annual Report
Corporation Names
Name Name Type
NC ALLEN PRECISION LEGAL
INDUSTRIES, INC.
NC ALLEN-LEONARD PREY LEGAL
INDUSTRIES, INC.
Business Corporation Information
SOSI D:
0003993
Status:
Current -Active
Effective Date:
12/30/1980
Dissolution Date:
Annual Report Due Date:
Citizenship:
DOMESTIC
State of Inc.:
NC
Duration:
PERPETUAL
Registered Agent
Agent Name:
Office Address
Mailing Address
Principal Office
POWELL, GEORGE F.
420 INDUSTRIAL PARK AVE
ASHEBORO NC 27205
P O BOX 339
ASHEBORO NC 27204
Office Address: 420 INDUSTRIAL PARK AVE
ASHEBORO NC 27203-7330
Mailing Address: P O BOX 339
ASHEBORO NC 27204
Officers
Title: PRESIDENT
Name: GEORGE POWELL
Business Address: P O BOX 339
ASHEBORO NC 27204
Stock
Class Shares No Par Value Par Value
COMMON 100000 1
This website is provided to the public as a part of the Secretary of State Knowledge Base (SOSKB) system. Version:
2529
I

,_._.r r_
NC®ENR
North Carolina Department of Environment and Natural
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins
Governor Director
October 27, 2010
Mr. George F Powell
Allen Precision
420 Industrial Drive
Asheboro, North Carolina 27205
Subject: Post -Construction Notification
Project ID: RANDO-2011-009
Project: Allen Precision
Randolph County, North Carolina
Dear Sir,
A- f_ "j
Euee-�Freeman�"'
CEIVE
rnt of Resources0 1200
Secretary
A review of the Financial Responsibility/Ownership (FRO) forth required under the
Sedimentation Pollution Control Act received on October 19, 2010 has determined that (lie Allen
Precision project may be subject to a State Stormwater Permit for Post -construction.
Unless excluded under the provisions of Session Law 2006-246, Section 8, you must submit
within 30 days an application for a Post -Construction Stormwater Permit to:
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Stornwater Permitting Unit
Post -Construction Application
1617 Mail Service Center
Raleigh, NC 27699-1617
The Post -construction permit is in addition to a North Carolina General Permit (NCG010000)
permit received for construction activity from the Division of Water Quality. For more information
regarding MSI Post -Construction and Phase 11 Session Law 2006-246 please visit:
http://portal.ticdenr,org/web/wq/ws/su/statesw.
If you have any questions concerning this matter please feel free to call me at 919-807-6365 or e-
mail me at Cory, Larscn [e-mail].
Sincerely,
Cory e
Environmental Engineer
cc: Winston-Salem Regional Office, Surface Water Protection Section
Stormwater Pernitting Unit Files
Wellands and Stormwater Branch 011C
1617 Mali Service Center, Raleigh, North Carolina 27699-1617 NoI lI1 C[trUl I Ill
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604 Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748 Nlltlll"ally
internel: www.ncwaterquality.org ;J
An Equal Cpportumty 1 Affirmative Action Employer

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