20061450 Ver 1_More Info Received_20080417

a~ - tti5 0

sociates, PLLC
Date: April 16, 2008
To: Annette Lucas
401 Oversight/Express Review
Permitting Unit
NCDENR -Division of Water
Quality
1650 Mail Service Center
Raleigh, NC 27699-1650
From: Victoria Waldron Small, PE
Westcott, Small & Associates, PLLC
4015 Meeting Way
Suite 105
High Point, NC 27265
We are sending you ®attached ^ under separate cover the following items:
^ Shop Drawings ^ Estimate ^ Disk
® Prints ^ Specifications ®Other
^ Contracts ^ Copy of Letter
# COPIES DRAWING NO DESCRIPTION DISPOSITION
1
1 Glennstone Pond Plans
Calculations For Your Use
For Your Use
REMARKS:
..
cc: File h~~'R, ~ "~ ~17U~
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4015 Meeting Way, Suite 105 • High Point, North Carolina 27265 • phone: [phone] • fax: [phone]

Pond Calculations
for
Glenstone Subdivision
~Testcott
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4015 Meeting Way
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High Point, NC 27265
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Fax: [phone]
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Pond Design Worksheet
Watershed Characteristics
Drainage;,
Area (Ac} Disturbed
Area (Ac) Impervious
Surface (Ac) ',~~
Impervious SuWce
Area Factor Soils Type (A, B,
C, or D) SC5 Curve
Number
12.06 0.00 3.80 31.51 % n/a C 82
Pre and Post-Development Flow "Rational Method
C i
(in/hr) A
(acre) Q
(cfs)
10 Year Pre-Development 0.30 5.81 12.06 21.02
10 Year Post-Development 0.65 5.81 12.06 45.54
100 Year Post-Develo ment 0.65 8.01 12.06 62.79
Pond Volume Requirements
Peak Discharge/Elevation
Requirement Quantity Elevation Discharge Elevation
Surface Area. (5:5') 5022 5041 928.20 10 Year 11.67 931.75
100 fear 27.91 932.13
Perm. Sediment 5tora e 0.125 5472 922.70
Perm WQ Pool . 5.5 928.20
Tem WQ Stora e 1.00 14603.49 930.89
Stage/Storage Function
Contour .Contour.
Area
' (s ft Incr
Vol
(cu ft) Accum
Vol
cu ft)
916.00 386.00 0.00 0.00
918.00 884.00 1270.00 1270.00
920.00 1493.00 2377.00 3647.00
922.00 2202.00 3695.00 7342.00
922.70 2479.00 1638.35 8980.35
924.00 3012.00 3569.15 12549.50
926.00 3922.00 6934.00 19483.50
928.00 5822.00 9744.00 29227.50
928.20 6119.00 1194.10 30421.60
930.00 7045.00 11847.60 42269.20
931.00 7694.00 7369.50 49638.70
932.00 8369.00 8031.50 57670.20
933.00 9068.00 8718.50 66388.70
0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00
Pond Structure
Dam
Top of Dam 933.15 ft
Toe of Dam 918 ft
Dam Width 10 ft
WQ Orifce Dia. 1.75 in
WQ Orifice Elev. 928.20 ft
Riser
Diameter 24 in
Top 931.01 ft
`Heir Coefficient 3.00
Orifice Coefficient 0.60
Trash Rack
Diameter 36 in.
Barrel
Diameter 15.00 in
Inv. Up Stream 923.10 ft
Inv. Down Stream 920.00
Len th 74.79 ft
Orifice Coefficient 0.60
Slope ` 4.14%
Emer enc Spillwa
Weir Coefficient 3.00
Elevation 931.77 ft
Len th 25.00 ft
Anti See Collars..
Size 4.25 4.25
Anti Flotation-
Width square) 5 ft
Height' 2.5 ft

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Routing 10 Year Storm
MAX STAGE: 931.75 P= 2.32
MAX FLOW: 11.67 i= 2.32
Tp= 25.05 First Time Step=
s= 2.20 Time Step= 0.835102
O'= 0.87

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u.w u.0u Za20ti 928.20 0.00 0.00 0.00 0.00 O.v0 a.o~ UAO
1.00 0.07 29206 928.20 0.00 0.00 0.00 0.00 0.00 9.62 0.00
1.84 0.24 29210 928.20 0.00 0.00 0.00 0.00 0.00 9.63 0.00
2.67 0.51 29222 928.20 0.00 0.00 0.00 0.00 0.00 9.63 0.00
3.51 0.86 29247 928.21 0.01 0.01 0.00 0.00 0.00 9.63 0.00
4.34 1.31 29290 928.22 0.01 0.01 0.00 0.00 0.00 9.63 0.00
5.18 1.85 29355 928.23 0.01 0.01 0.00 0.00 0.00 9.64 0.00
6.01 2.46 29447 928.25 0.02 0.02 0.00 0.00 0.00 9.65 0.00
6.85 3.15 29570 928.27 0.02 0.02 0.00 0.00 0.00 9.67 0.00
7.68 3.90 29726 928.31 0.03 0.03 0.00 0.00 0.00 .9.69 0.00
8.52 4.71 29921 928.35 0.03 0.03 0.00 0.00 0.00 9.71 0.00
9.35 5.57 30155 928.39 0.04 0.04 0.00 0.00 0.00 9.74 0.00
10.19 6.46 30432 928.45 0.04 0.04 0.00 0.00 0.00 9.77 0.00
11.02 7.39 30754 928.51 0.05 0.05 0.00 0.00 0.00 9.81 0.00
11.86 8.33 31122 928.59 0.05 0.05 0.00 0.00 0.00 9.85 0.00
12.69 9.28 31537 928.67 0.06 0.06 0.00 0.00 0.00 9.90 0.00
13.53 10.23 31999 928.76 0.06 0.06 0.00 0.00 0.00 9.95 0.00
14.36 11.17 32509 928.86 0.07 0.07 0.00 0.00 0.00 10.00 0.00
15.20 12.08 33065 926.97 0.07 0.07 0.00 0.00 0.00 10.06 0.00
16.03 12.96 33667 929.08 0.08 0.08 0.00 0.00 0.00 10.13 0.00
16.87 13.60 34313 929.20 0.08 0.08 0.00 0.00 0.00 10.20 0.00
17.70 14.59 35000 929.33 0.09 0.09 0.00 0.00 0.00 10.27 0.00
18.54 15.32 35726.8 929.47 0.09 0.09 0.00 0.00 0.00 10.34 0.00
19.37 15.98 36489.6 929.61 0.10 0.10 0.00 0.00 0.00 10.42 0.00
20.21 16.56 37285.3 929.75 0.10 0.10 0,00 0.00 0.00 10.50 0.00
21.04 17.06 38110.0 929.90 0.10 0.10 0.00 0.00 0.00 10.58 0.00
21.88 17.48 38959.6 930.05 0.11 0.11 0.00 0.00 0.00 10.66 0.00
22.71 17.80 39829.7 930.21 0.11 0.11 0.00 0.00 0.00 10.74 0.00
23.55 18.02 40715.7 930.36 0.12 0.12 0.00 0.00 0.00 10.82 0.00
24.38 18.15 41613.0 930.52 0.12 0.12 0.00 0.00 0.00 10.90 0.00
25.22 18.18 42516.49 930.67 0.13 0.13 0.00 0.00 0.00 10.98 0.00
26.05 18.12 43421.32 930.82 0.13 0.13 0.00 0.00 0.00 11.06 0.00
26.89 17.95 44322.47 930.97 0.13 0.13 0.00 0.00 0.00 11.13 0.00
27.72 17.68 45215.00 931.12 0.84 0.14 0.70 461.58 180.30 11.21 0.00
28.56 17.32 46058.93 93126 2.49 0.14 2.35 461.61 180.32 11.28 0.00
29.39 16.87 46802.18 931.38 4.38 0.14 4.24 461.64 180.33 11.34 0.00
30.23 16.34 47427.95 931.48 6.23 0.15 6.08 461.67 180.34 11.39 0.00
31.06 15.72 47934.41 931.56 7.87 0.15 7.72 461.69 180.35 11.43 0.00
31.90 15.08 48328.02 931.62 9.22 0.15 9.07 461.70 180.35 11.46 0.00
32.73 14.44 48621.54 931.67 10.27 0.15 10.12 461.72 180.36 11.48 0.00
33.57 13.83 48830.33 931.70 11.04 0.15 10.69 461.72 180.36 11.50 0.00
34.40 13.24 48969.91 931.73 11.57 0.15 11.41 461.73 180.36 11.51 0.00
35.24 12.68 49053.86 931.74 11.67 0.15 11.73 461.73 180.36 11.52 0.00
36.07 12.14 49104.60 931.75 11.67 0.15 11.93 461.74 180.37 11.52 0.00
36.91 11.63 49128.18 931.75 11.67 0.15 12.02 461.74 180.37 11.52 0.00
37.74 11.13 49125.86 931.75 11.67 0.15 12.01 461.74 180.37 11.52 0.00
38.58 10.66 49098.85 931.75 11.67 0.15 11.90 461.74 180.37 11.52 0.00
39.41 10.21 4904829 931.74 11.67 0.15 11.71 461.73 180.36 11.52 0.00
40.25 9.78 4897527 931.73 11.59 0.15 11.43 461.73 180.36 11.51 0.00
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1 21 41 61 61 101 121 141 161 181 201 221 241 261 281 301
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Routing 100 YearStonn
MAX S7AGE: 932.13 P= 2.53
MAX FLOW: 27.87 i= 5.07
Tp= 13.47 First Time Step=
s= 2.20 Time Step= 0.25
(1'= 1.02

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9.62 0.00
1.00 0.54 29206 928.20 0.00 0.00 0.00 0.00 0.00 9.62 0.00
1.25 0.84 29214 928.20 0.00 0.00 0.00 0.00 0.00 9.63 0.00
1.50 1.20 29227 928.20 0.01 0.01 0.00 0.00 0.00 9.63 0.00
1.75 1.63 29245 928.21 0.01 0.01 0.00 0.00 0.00 9.63 0.00
2.00 2.12 29269 928.21 0.01 0.01 0.00 0.00 0.00 9.63 0.00
2.25 2.67 29301 928.22 0.01 0.01 0.00 0.00 0.00 9.64 0.00
2.50 3.28 29341 928.23 0.01 0.01 0.00 0.00 0.00 9.64 0.00
2.75 3.95 29390 928.24 0.02 0.02 0.00 0.00 0.00 9.65 0.00
3.00 4.67 29449 928.25 0.02 0.02 0.00 0.00 0.00 9.65 0.00
3.25 5.44 29519 928.26 0.02 0.02 0.00 0.00 0.00 9.66 0.00
3.50 6.26 29600 928.28 0.02 0.02 0.00 0.00 0.00 9.67 0.00
3.75 7.13 29694 928.30 0.03 0.03 0.00 0.00 0.00 9.68 0.00
4.00 8.04 29800 928.32 0.03 0.03 0.00 0.00 0.00 9.70 0.00
4.25 8.99 29920 928.35 0.03 0.03 0.00 0.00 0.00 9.71 0.00
4.50 9.97 30054 928.37 0.03 0.03 0.00 0.00 0.00 9.73 0.00
4.75 10.99 30204 928.40 0.04 0.04 0.00 0.00 0.00 9.74 0.00
5.00 12.04 30368 928.44 0.04 0.04 0.00 0.00 0.00 9.76 0.00
5.25 13.12 30548 928.47 0.04 0.04 0.00 0.00 0.00 9.78 0.00
5.50 14.22 30744 928.51 0.04 0.04 0.00 0.00 0.00 9.81 0.00
5.75 15.34 30957 928.55 0.05 0.05 0.00 0.00 0.00 9.83 0.00
6.00 16.48 31186 928.60 0.05 0.05 0.00 0.00 0.00 9.86 0.00
6.25 17.62 31432.6 928.65 0.05 0.05 0.00 0.00 0.00 9.88 0.00
6.50 18.78 31696.2 928.70 0.06 0.06 0.00 0.00 0.00 9.91 0.00
6.75 19.94 31977.0 928.76 0.06 0.06 0.00 0.00 0.00 9.95 0.00
7.00 21.09 32275.1 928.81 0.06 0.06 0.00 0.00 0.00 9.98 0.00
7.25 22.25 32590.5 928.88 0.07 0.07 0.00 0.00 0.00 10.01 0.00
7.50 23.39 32923.2 928.94 0.07 0.07 0.00 0.00 0.00 10.05 0.00
7.75 24.53 33273.1 929.01 0.07 0.07 0.00 0.00 0.00 10.09 0.00
8.00 25.64 33639.9 929.08 0.08 0.08 0.00 0.00 0.00 10.13 0.00
8.25 26.74 34023.3& 929.15 0.08 0.08 0.00 0.00 0.00 10.17 0.00
8.50 27.82 34423.33 929.23 0.08 0.08 0.00 0.00 0.00 10.21 0.00
8.75 28.86 34839.34 929.30 0.08 0.08 0.00 0.00 0.00 10.25 0.00
9.00 29.88 35271.03 929.38 0.09 0.09 0.00 0.00 0.00 10.30 0.00
9.25 30.!36 35717.93 929.47 0.09 0.09 0.00 0.00 0.00 10.34 0.00
9.50 31.81 36179.53 929.55 0.09 0.09 0.00 0.00 0.00 10.39 0.00
9.75 32.72 36655.27 929.64 0.10 0.10 0.00 0.00 0.00 10.44 0.00
10.00 33.58 37144.55 929.73 0.10 0.10 0.00 0.00 0.00 10.48 0.00
10.25 34.39 37646.71 929.82 0.10 0.10 0.00 0.00 D.00 10.53 0.00
10.50 35.16 ~ 38161.05 929.91 0.11 0.11 0.00 0.00 0.00 10.58 0.00
10.75 35.137 38686.84 930.01 0.11 0.11 0.00 0.00 0.00 10.63 0.00
11.00 36.53 39223.29 930.10 0.11 0.11 0.00 0.00 0.00 10.68 0.00
11.25 37.13 39769.59 930.20 0.11 0.11 0.00 0.00 0.00 10.73 0.00
11.50 37.68 40324.89 930.29 0.12 0.12 0.00 0.00 0.00 10.78 0.00
11.75 38.16 40888.31 930.39 0.12 0.12 0.00 0.00 0.00 10.84 0.00
12.00 38.58 41458.9E 930.49 0.12 0.12 0.00 0.00 0.00 10.89 0.00
12.25 38.94 42035.88 930.59 0.12 0.12 0.00 0.00 0.00 10.94 0.00
12.50 39.23 42618.14 930.69 0.13 0.13 0.00 0.00 0.00 10.99 0.00
12.75 39.46 43204.7E 930.79 0.13 0.13 0.00 0.00 0.00 11.04 0.00
13.00 39.62 43794.75 930.89 0.13 0.13 0.00 0.00 0.00 11.09 0.00
13.25 39.72 44387.12 930.98 0.13 0.13 0.00 0.00 0.00 11.14 0.00
13.50 39.74 44980.8E 931.08 0.51 0.14 0.37 461.57 180.30 11.19 0.00
13.75 39.70 45569.39 931.18 1.45 0.14 1.32 461.59 180.31 11.24 0.00
14.00 39.59 46143.11 931.27 2.68 0.14 2.54 461.62 180.32 11.29 0.00
45.00 -, _
40.00. _
35.00 _ _____ _ - -- _-
30.00 _,.;:_ ~'~,,....~. .- _.,,,... ._
25.00 r - - - -- ---- Seriesl
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1 21 41 61 81 101 121 141 161 181 201 221 241 261 281 301

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14.25 39.42 46696.74 931.36 4.09 0.14 3.95 461.64 180.33 11.33 0.00
14.50 39.18 47226.81 931.45 5.61 0.14 5.47 461.66 180.34 11.37 0.00
14.75 36.87 47730.05 931.53 7.19 0.15 7.05 461.66 180.34 11.41 0.00
15.00 38.50 46205.19 931.60 8.79 0.15 8.64 481.70 180.35 11.45 0.00
15.25 38.06 48650.77 931.68 10.38 0.15 10.23 481.72 180.38 11.48. 0.00
15.50 37.56 49066.00 931.74 11.67 0.15 11.78 461.73 180.36 11.52 0.00
15.75 37.01 49454.44 931.80 12.13 0.15 13.29 461.75 180.37 11.55 0.43
18.00 38.39 49827.62 931.86 13.77 0.15 14.78 461.76 180.38 11.58 2.04
16.25 35.72 50166.95 931.91 15.83 0.15 18.19 461.78 180.38 11.60 4.07
16.50 34.99 50465.30 931.96 17.98- 0.16 17.45 461.79 180.39 11.62 6.20
16.75 34.22 50720.48 932.00 20.04 0.16 18.55 481.80 180.39 11.64 8.24
17.00 33.45 50933.12 932.03 21.89 0.16 19.48 481.81 180.39 11.66 10.08
17.25 32.65 51106.42 932.06 23.49 0.16 20.26 461.81 180.40 11.67 11.66
17.50 31.87 51243.63 932.08 24.81 0.16 20.87 481.82 180.40 11.68 12.98
17.75 31.11 51349.84 932.10 25.85 0.18 21.35 461.82 180.40 11.69 14.00
18.00 30.37 51428.77 932.11 26.64 0.16 21.71 461.82 180.40 11.70 14.79
18.25 29.65 51484.66 932.12 27.22 0.16 21.97 461.83 180.40 11.70 15.36
18.50 28.94 51521.14 932.12 27.59 0.16 22.13 461.83 180.40 11.70 15.73
18.75 28.25 51541.37 932.13 27.80 0.16 22.23 481.83 180.40 11.70 15.94
19.00 27.58 51548.11 932.13 27.87 0.18 22.26 481.83 180.40 11.70 16.01
19.25 26.92 51543.69 932.13 27.83 0.18 22.24 481.83 180.40 11.70 15.96
19.50 26.28 51530.11 932.12 27.68 0.16 22.17 461.83 180.40 11.70 15.82
19.75 25.65 51509.01 932.12 27.47 0.16 22.08 461.83 180.40 11.70 15.61
20.00 25.04 51481.80 932.12 27.19 0.16 21.95 461.83 180.40 11.70 15.33
20.25 24.44 51449.62 932.11 26.86 0.16 21.81 461.83 180.40 11.70 15.00
20.50 23.86 51413.43 932.11 26.49 0.16 21.64 461.82 180.40 11.69 14.64
20.75 23.29 51374.01 932.10 28.09 0.16 21.46 461.62 180.40 11.69 14.24
21.00 22.74 51332.02 932.09 25.67 0.16 21.27 461.82 180.40 11.69 13.83
21.25 22.20 51287.99 932.09 25.24 0.16 21.07 461.82 180.40 11.69 13.39
21.50 21.67 51242.36 932.08 24.79 0.18 20.87 461.82 180.40 11.68 12.95
21.75 21.15 51195.49 932.07 24.34 0.16 20.65 461.62 180.40 11.68 12.50
22.00 20.65 51147.69 932.07 23.88 0.16 20.44 481.81 180.40 11.67 12.05
22.25 20.15 51099.18 932.06 23.42 0.16 20.22 461.81 180.40 11.67 11.59
22.50 19.67 51050.17 932.05 22.98 0.16 20.00 461.81 180.39 11.87 11.14
22.75 19.20 51000.83 932.04 22.51 0.16 19.78 461.81 180.39 11.66 10.69
23.00 18.75 50951.27 932.04 22.06 0.16 19.57 461.81 180.39 11.66 10.24
23.25 18.30 50901.61 932.03 21.61 0.16 19.35 461.80 180.39 11.66 9.80
23.50 17.86 50851.92 932.02 21.17 ~ 0.16 19.13 461.80 180.39 11.65 9.36
23.75 17.44 50802.29 932.01 20.74 0.16 18.91 461.80 180.39 11.85 8.93
24.00 17.02 50752.75 932.00 20.32 0.16 18.69 461.80 180.39 11.65 8.51
24.25 16.82 50703.36 932.00 19.90 0.16 18.48 461.80 180.39 11.64 8.10
24.50 16,22 50654.14 931.99 19.49 0.16 18.26 461.80 180.39 11.64 7.69
24.75 15.83 50605.12 931.98 19.09 0.16 18.05 461.79 180.39 11.63 7.30
25.00 15.46 50556.31 931.97 18.70 0.16 17.84 481.79 180.39 11.63 6.91
25.25 15.09 50507.73 931.97 18.31 0.16 17.83 461.79 180.39 11.83 6.53
25.50 14.73 50459.36 931.96 17.94 0.16 17.42 461.79 180.39 11.62 6.16
25.75 14.38 50411.23 931.95 17.57 0.16 17.22 481.79 180.39 11.62 5.80
26.00 14.03 50363.32 931.94 17.21 0.16 17.01 461.78 180.38 11.62 5.44
26.25 13.70 50315.62 931.94 16.87 0.16 16.81 461.78 180.38 11.61 5.10
26.50 13.37 50268.13 931.93 16.53 0.18 18.61 461.78 180.38 11.81 4.76
26.75 13.06 50220.83 931.92 16.20 0.16 16.41 461.78 180.38 11.81 4.44
27.00 12.74 50173.70 931.91 15,88 0.16 16.21 461.78 180.38 11.60 4.12
27.25 12.44 50126.73 931.91 15.56 0.15 16.02 461.77 180.38 11.60 3.81
27.50 12.14 50079.90 931.90 15.28 O.tS 15.82 461.77 180.38 11.59 3.51
27.75 ~ 11.85 50033.18 931.89 14.96 0.15 15.63 461.77 180.38 11.59 3.22
28.00 11.57 49988.53 931.89 14.68 0.15 15.44 461.77 180.38 11.59 2.94
28.25 11.30 49939.95 931.88 14.40 0.15 15.24 461.77 180.38 11.58 2.66
28.50 11.03 49893.38 931.87 14.13 0.15 15.05 481.77 180.38 11.58 2.40
28.75 10.76 49846.79 931.86 13.87 0.15 14.88 461.76 180.38 11.58 2.14
29.00 10.51 49800.15 931.86 13.82 0.15 14.87 481.76 180.38 11.57 1.90
29.25 10.26 49753.40 931.85 13.38 0.15 14.48 461.76 180.38 11.57 1.66
29.50 10.01 49706.50 931.84 13.15 0.15 14.29 461.76 180.37 11.57 1.43
29.75 9.77 49659.38 931.83 12.93 0.15 14.10 461.76 180.37 11.56 1.22
30.00 9.54 49611.98 931.83 12.72 0.15 13.91 481.76 160.37 11.56 1.01
30.25 9.31 49584.22 931.82 12.53 0.15 13.72 461.75 180.37 11.56 0.82
30.50 9.09 49516.01 931.81 12.34 0.15 13.53 481.75 180.37 11.55 0.64
30.75 8.87 49467.26 931.80 12.17 0.15 13.34 461.75 180.37 11.55 0.47
31.00 8.66 49417.82 931.80 12.02 0.15 13.14 461.75 180.37 11.54 0.32

Project: Glennstone Pond #2
Watershed Characteristics
Pond Design Worksheet
Job No: E-443
Drainage Area
(Act . Disturbed
Area (Ac) Impervious
Surface (Ac) %
Impervious Soils Type (A,
B, C, or D) SCS Curve
Number
36.77 0.00 11.30 30.73% C 82
Pre and Post-Development Flow
"Rational Method
C i
(in/hr) A
~ '(acre) ~ O
(cfs)
10 Year Pre-Development 0.30 5.81 36.77 64.09
10 Year Post-Development 0.65 5.81 36.77 138.86
100 Year Post-Development 0.65 8.01 36.77 191.44
Pond Volume Requirements
Peak Discharge/Elevation
Requirement Quantity Elevation Discharge Elevation
Perm. Sddiment Stora e 20% 8718 911.34 10 Year 5.02 917.27
Detention Volume 1.00 43591 916.07 100 Year- 7.17 917.35
Total Volume 52309 916.85
Stage/Storage Function
Contour Contour
Area
(sq ftj Incr
Vol
(cu ft) Accum
Vol
(cu ft)
907.00 .187 - -
908.00- 740 464 464
909.00 1, 558 1,149 1,613
910.00 2,654 2,106 3,719
911.00 3,823 3,239 6,957
912.00 5,108 4,466 11,423
913.00 6,427 5,768 17,190
914.00 7,839 7,133 24,323
915.00 9,275 8,557 32,880
916.00 10, 786 10, 031 42, 911
917.00 12,002 11,394 54,305
918.00 13,624 12,813 67,118
0.00 - - _
0.00 - - _
0.00 - - _
0.00 - - _
0.00 - - _
0.00 - - _
0.00 - - _
0.00 - - _
0.00 - _ _
Surface Area Provided 5,108
Drawdown Tirlie (da s) 2.01
Pond Structure
Dam
To of Dam 918.35 ft
Toe of Dam 910 ft
Dani Width _ 10 ft
Drain Hole No. 21 ea
Drain Hole Size 0.50 in
Drain Hole Elev. 912 ft
Riser
Diameter 24 in
Top 916.85 ft
Weir Coefficient 3.00
Orifice Coefficient 0.60
Trash Rack.-
Diameter 36 in.
Barrel
Diameter 15.0 in
Inv. Up Stream 911.60 ft
Inv. Down Stream 906.00
Len th 156.00 ft
Orifice Coefficient 0.60
Slope 3.59%
Emer enc S illwa
Weir Coefficient 3.00
Elevation 917.28 ft
Len th 10.00 ft
Anti Seep Collars
Size 4.25 4.25
Anti Flotation
Width (square) 5 ft
Hei ht 3 ft

Single Orifice
Hole Diameter (inl Hole Area {sf) Pond Area
2 da release ' 2.30 0.0288 5108.00
5 day release 1.45 0.0115 5108.00
Use 2,25 0.0276
fields a draw down time of 2.09 da s
Multiple Orifice
No. of holes 21
Hole dia. (in) 0.5
Hole area (sf) 0.0014
Total area (sf) 0.0286
Total Q (cfs) 4.17
Q per hole (cfs) 0.20
Drawdown (days) 2.01

~ - ~
`°
Routing 70 Year Storm
MAX STAGE: 917.27 p= 4,g7
MAX FLOW: 5.02 i= 0.21
Tp= 973.26 First Time Step=
s= 2.20 Time Step= 10
O'= 3.05
1

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u.u0 0.00 0 907.00 u.uu U.OU 0.00 0.00 0.00 0.00
1.00 0.00 0 907.00 0.00 0.00 0.00 0.00 0.00 0.00
11.00 0.00 0 907.01 0.00 0.00 0.00 0.00 0.00 0.00
21.00 0.01 1 907.07 0.00 0.00 0.00 0.00 0.00 0.00
31.00 0.01 4 907.13 0.00 0.00 0.00 0.00 0.00 0.00
41.00 0.02 12 907.21 0.00 0.00 0.00 0.00 0.00 0.00
51.00 0.03 25 907.30 0.00 0.00 0.00 0.00 0.00 0.00
61.00 0.05 45 907.39 0.00 0.00 0.00 0.00 0.00 0.00
71.00 0.07 75 907.49 0.00 0.00 0.00 0.00 0.00 0.00
81.00 0.09 114 907.60 0.00 0.00 0.00 0.00 0.00 0.00
91.00 0.11 165 907.71 0.00 0.00 0.00 0.00 0.00 0.00
101.00 0.13 230 907.82 0.00 0.00 0.00 0.00 0.00 0.00
111.00 0.16 309 907.94 0.00 0.00 0.00 0.00 0.00 0.00
121.00 0.19 405 908.06 0.00 0.00 0.00 0.00 0.00 0.00
131.00 0.22 518 908.19 0.00 0.00 0.00 0.00 0.00 0.00
141.00 0.26 651 908.32 0.00 0.00 0.00 0.00 0.00 0.00
151.00 0.29 804 908.46 0.00 0.00 0.00 0.00 0.00 0.00
161.00 0.33 979 908.60 0.00 0.00 0.00 0.00 0.00 0.00
171.00 0.37 1178 908.74 0.00 0.00 0.00 0.00 0.00 0.00
181.00 0.42 1402 908.88 0.00 0.00 0.00 0.00 0.00 0.00
191.00 0.46 1651 909.03 0.00 0.00 0.00 0.00 0.00 0.00
201.00 0.51 1929 909.16 0.00 0.00 0.00 0.00 0.00 0.00
211.00 0.56 2235 909.33 0.00 0.00 0.00 0.00 0.00 0.00
221.00 0.61 2570 909.48 0.00 0.00 0.00 0.00 0.00 0.00
231.00 0.67 2938 909.64 0.00 0.00 0.00 0.00 0.00 0.00
241.00 0.72 3337 909.80 0.00 0.00 0.00 0.00 0.00 0.00
251.00 0.78 3770 909.96 0.00 0.00 0.00 0.00 0.00 0.00
261.00 0.84 4238 910.12 0.00 0.00 0.00 0.00 0.00 0.00
271.00 0.90 4742 910.28 0.00 0.00 0.00 0.00 0.00 0.00
281.00 0.96 5282 910.45 0.00 0.00 0.00 0.00 0.00 0.00
291.00 1.03 5860 910.62 0.00 0.00 0.00 0.00 0.00 0.00
301.00 1.09 6477 910.79 0.00 0.00 0.00 0.00 0.00 0.00
311.00 1.16 7133 910.96 0.00 0.00 0.00 0.00 0.00 0.00
321.00 1.23 7830 911.13 0.00 0.00 0.00 0.00 0.00 0.00
331.00 1.30 8569 911.31 0.00 0.00 0.00 0.00 0.00 0.00
341.00 1.37 9350 911.48 0.00 0.00 0.00 0.00 0.00 0.00
351.00 1.45 10173 911.66 0.00 0.00 0.00 0.00 5.71 0.00
361.00 1.52 11041 911.84 0.00 0.00 0.00 0.00 5.80 0.00
371.00 1.59 11952 912.01 0.00 0.00 0.00 0.00 5.89 0.00
381.00 1.67 12909 912.19 0.00 0.00 0.00 0.00 5.98 0.00
391.00 1.75 13911 912.37 0.00 0.00 0.00 0.00 6.06 0.00
401.00 1.62 14960 912.56 0.00 0.00 0.00 0.00 6.15 0.00
411.00 1.90 16054 912.74 0.00 0.00 0.00 0.00 6.23 0.00
421.00 1.98 17196 912.92 0.00 0.00 0.00 0.00 6.32 0.00
431.00 2.06 18385 913.11 0.00 0.00 0.00 0.00 6.40 0.00
441.00 2.14 19622 913.29 0.00 0.00 0.00 0.00 6.48 0.00
451.00 2.22 20907 913.48 0.00 0.00 0.00 0.00 6.57 0.00
461.00 2.30 22240 913.66 0.00 0.00 0.00 0.00 6.65 0.00
6.00 _
5.00 '_ - _ _ _ _
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1 21 41 81 81 101 121 141 161 181 201 221 241 261 281 301

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GU ~v
471.00
481.00
491.00
501.00
511.00
521.00
531.00 2.38
2.46
2.54
2.63
2.71
2.79
2.87 23621
25051
26529
28056
29632
31256
32928 913.85
914.04
914.22
914.41
914.60
914.78
914.97 0.00
0.00
0.00
0.00
0.00
0,00
0.00 0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00
0.00
0.00
0.00
0.00 0.00
0.00
0.00
0.00
0.00
0.00
0.00 6.73
6.81
6.89
6.96
7.04
7.12
7.19 0.00
0.00
0.00
0.00
0.00
0.00
0
00
547.00 2.95 34649 915.16 0.00 0.00 0.00 0.00 7.27 .
0
00
551.00 3.03 36418 915.35 0.00 0.00 0.00 0.00 7.34 .
0
00
561.00 3.11 38234 915.54 0.00 0.00 0.00 0.00 7.42 .
0
00
571.00 3.18 40098 915.73 0.00 0.00 0.00 0.00 7.49 .
0
00
581.00 3.26 42009 915.91 0.00 0.00 0.00 0.00 7.56 .
0
00
591.00 3.34 43966 916.10 0.00 0.00 0.00 0.00 7.63 .
0
00
601.00 3.42 45969 916.29 0.00 0.00 0.00 0.00 7.70 .
0.00
611.00 3.49 48018 916.48 0.00 0.00 0.00 0.00 7.77 0.00
621.00 3.56 50113 916.66 0.00 0.00 0.00 0.00 7.84 0.00
631.00 3.64 52251 916.85 0.00 0.00 0.00 0.00 7.91 0.00
641.00 3.71 54433 917.04 1.45 1.45 458.06 178.94 7.98 0.00
651.00 3.78 55787 917,15 3.01 3.01 458.10 178.95 8.02 0.00
661.00 3.85 56246 917.19 3.62 3.62 458.11 178.95 8.03 0
00
671.00 3.92 56385 917.20 3.81 3.81 458.12 178.95 8.04 .
0.00
681.00 3.98 56450 917.20 3.90 3.90 458.12 178.95 8.04 0.00
691.00 4.05 56502 917.21 3.97 3.97 458.12 178.95 8.04 0.00
701.00 4.11 56549 917.21 4.03 4.03 458.12 178.95 8.04 0
00
711.00 4.17 56595 917.22 4.10 4.10 458.12 178.95 8.04 .
0
00
721.00 4.23 56639 917,22 4.16 4.16 458.12 178.95 8.04 .
0.00
731.00 4.29 56682 917.22 4.22 4.22 458.12 178.95 8.04 0.00
741.00 4.35 56723 917.23 4.28 4.28 458.12 178.95 8.05 0.00
751.00 4.40 56763 917.23 4.34 4.34 458.12 178.95 8.05 0
00
761.00 4.45 56801 917.23 4.39 4.39 458.12 178.95 8.05 .
0
00
771.00 4.50 56838 917.24 4.44 4.44 458.13 178.96 8.05 .
0
00
781.00 4.55 56873 917.24 4.50 4.50 458.13 178.96 8.05 .
0
00
791.00 4.60 56907 917.24 4.54 4.54 456.13 178.96 8.05 .
0
00
801.00 4.64 56939 917.24 4.59 4.59 458.13 178.96 8.05 .
0.00
811.00 4.66 56969 917.25 4.63 4.63 458.13 178.96 8.05 0.00
821.00 4.72 56998 917.25 4.68 4.68 458.13 178.96 8.05 0.00
831.00 4.76 57025 917.25 4.72 4.72 458.13 178.96 8.05 0.00
641.00 4.79 57051 917.25 4.75 4.75 458.13 176.96 6.05 0.00
851.00 4.83 57075 917.25 4.79 4.79 458.13 178.96 8.06 0.00
861.00 4.86 57097 917.26 4.82 4.82 458.13 178.96 8.06 0.00
871.00 4.86 57118 917.26 4.85 4.85 458.13 178.96 8.06 0.00
881.00 4.91 57136 917.26 4.88 4.88 458.13 178.96 8.06 0
00
891.00 4.93 57153 917.26 4.91 4.91 458.13 178.96 8.06 .
0.00
901.00 4.95 57169 917.26 4.93 4.93 458.13 178.96 8.06 0
00
911.00 4.97 57163 917.26 4.95 4.95 458.13 178.96 8.06 .
0.00
921.00 4.98 57195 917.26 4.97 4.97 458.13 178.96 8.06 0
00
931.00 5.00 57205 917.27 4.98 4.98 458.13 176.96 B.O6 .
0.00
941.00 5.01 57213 917.27 4.99 4.99 458.13 178.96 8.06 0.00
951.00 5.01 57220 917.27 5.00 5.00 456.13 178.96 8.06 0.00
961.00 5.02 57225 917.27 5.01 5.01 458.13 178.96 8.06 0
00
971.00 5.02 57228 917.27 5.02 5.02 458.13 178.96 8.06 .
0.00
981.00 5.02 57230 917.27 5.02 5.02 458.13 178.96 8.06 0.00
991.00 5.01 57229 917.27 5.02 5.02 458.13 178.96 8.06 0.00
1001.00 5.01 57227 917.27 5.02 5.02 458.13 178.96 8.06 0
00
1011.00 5.00 57224 917.27 5.01 5.01 458.13 178.96 8.06 .
0
00
1021.00 4.99 57218 917.27 5.00 5.00 458.13 178.96 8.06 .
0
00
1031.00 4.98 57211 917.27 4.99 4.99 458.13 178.96 8.06 .
0
00
1041.00 4.96 57202 917.27 4.98 4.98 458.13 178.96 8.06 .
0
00
1051.00 4.94 57191 917.26 4.96 4.96 456.13 178.96 8.06 .
0.00
1061.00 4.92 57179 917.26 4.94 4.94 458.13 178.96 8.06 0.00
1071.00 4.90 57164 917.26 4.92 4.92 458.13 178.96 8.06 0.00
1081.00 4.87 57149 917.26 4.90 4.90 458.13 178.96 8.06 0.00
1091.00 4.84 57131 917.26 4.87 4.87 458.13 178.96 8.06 0.00
1101.00 4.81 57112 977.26 4.84 4.64 458.13 178.96 8.06 0.00
1111.00 4.78 57091 917.26 4.81 4.81 458.13 178.96 6.06 0.00
1121.00 4.74 57068 917.25 4.78 4,78 458.13 178.96 8.06 0.00
1131.00 4.70 57044 917.25 4.74 4.74 458.13 178.96 8.05 0.00
1141.00 4.66 57018 917.25 4.71 4.71 458.13 178.96 8.05 0.00
1151.00 4.62 56991 917.25 4.67 4.67 456.13 178.96 8.05 0.00
1161.00 4.57 56962 917.25 4.62 4.62 458.13 178.96 8.05 0.00
1171.00 4.53 56931 917.24 4.58 4.58 458.13 178.96 8.05 0.00
1181.00 4.48 56899 917.24 4.53 4.53 456.13 178.96 8.05 0.00
1191.00 4.42 56865 917.24 4.48 4.46 458.13 178.96 8.05 0.00

t
~ ~ ~-
471.00 2.62 25397 914.08 0.00 0.00 0.00 0.00 8.83 0.00
481.00 2.72 26970 914.28 0.00 0.00 0.00 0.00 8.91 0.00
491.00 2.81 28601 914.47 0.00 0.00 0.00 0.00 8.99 0.00
501.00 2.91 30289 914.67 0.00 0.00 0.00 0.00 7.07 0.00
511.00 3.01 32035 914.87 0.00 0.00 0.00 0.00 7.15 0.00
521.00 3.11 33840 915.07 0.00 0.00 D.00 0.00 7.23 0.00
531.00 3.20 35704 915.27 0.00 0.00 0.00 0.00 7.31 0.00
541.00 3.3D 37626 915.47 0.00 0.00 0.00 0.00 7.39 0.00
551.00 3.40 39608 915.68 0.00 0.00 0.00 0.00 7.47 0.00
581.00 3.50 41649 915.88 0.00 0.00 0.00 0.00 7.55 0.00
571.00 3.80 43749 918.08 0.00 0.00 0.00 0.00 7.62 0.00
581.00 3.70 45808 816.28 0.00 0.00 0.00 0.00 7.70 0.00
591.00 3.80 48126 916.49 0.00 0.00 0.00 0.00 7.78 0.00
601.00 3.90 50404 916.69 0.00 0.00 0.00 0.00 7.85 0.00
811.00 3.99 52741 916.89 0.14 0.14 458.04 178.92 7.92 0.00
621.00 4.09 55056 917.09 2.13 2.13 458.09 178.94 8.00 0.00
631.00 4.19 56235 917.19 3.80 3.60 456.11 178.95 8.03 0.00
641.00 4.29 56587 917.21 4.09 4.09 458.12 178.95 8.04 0.00
651.00 4.38 56706 917.22 4.28 4.26 458.12 178.95 8.04 0.00
681.00 4.46 56782 917.23 4.38 4.36 458.12 178.95 8.05 0.00
671.00 4.57 58851 917.24 4.46 4.46 458.13 178.98 8.05 0.00
681.00 4.67 56918 917.24 4.56 4.56 458.13 178.98 8.05 0.00
691.00 4.76 56983 917.25 4.86 4.68 458,13 178.96 8.05 0.00
701.00 ,4.86 57048 917.25 4.75 4.75 458.13 178.96 8.05 0.00
711.00 4.95 57112 917.26 4.84 4.84 458.13 178.98 8.08 0.00
721.00 5.04 57174 917.28 4.94 4.94 458.13 178.98 8.08 0.00
731.00 5.13 57238 917.27 5.03 5.03 458.13 178.96 8.08 0.00
741.00 5.22 57296 917.27 5.12 5.12 458.13 178.98 8.06 0.00
751.00 5.30 57355 917.28 5,21 5.21 458.14 178.96 8.06 0.00
761.00 5.39 57413 917.28 5.30 5.30 458.14 178.96 8.07 0.00
771.00 5.48 57488 917.29 5.40 5.38 458.14 178.98 8.07 0.02
781.00 5.58 57515 917.29 5,49 5.45 458.14 178,98 8.07 0.04
791.00 5.64 57559 917.29 5.57 5.52 458.14 178.96 8.07 0.05
801.00 5.72 57600 917.30 5.65 5.58 458.14 178.98 8.07 0.07
811.00 5.80 57640 917.30 5.74 5.64 458.14 178.96 8,07 0.09
821.00 5.88 57878 917.30 5.82 5.70 458.14 178.96 8.07 0.11
831.00 5:95 57714 817.31 5.89 5.78 458.14 178.98 8.07 0.14
841.00 8.02 57749 917.31 5.97 5.81 458.14 178.88 8.08 0.18
851.00 8.10 57782 917.31 8.04 5.86 458.14 178.96 8.08 0.18
861.00 8.17 57814 917.32 6.11 5.91 458.15 178.98 8.08 0.20
871.00 6.23 57844 917.32 6.18 5.98 458.15 178.98 8.08 0.22
881.00 6.30 57874 917.32 6.25 6.01 458.15 178.98 8.08 0.24
891.00 6.36 57902 917.32 8.32 6.05 458.15 178.96 8.08 0.27
901.00 6.42 57929 917.32 6.38 8.10 458.15 178.98 6.08 0.29
911.00 6.48 57955 917.33 8.44 6.14 458.15 178.96 8.08 0.31
921.00 6.54 57979 917.33 8.50 6.18 458.15 178.96 8.08 0.33
931.00 6.60 58003 817.33 6.56 8.21 458.15 178.98 8.08 0.35
841.00 6.65 58025 917.33 6.61 6.25 458.15 178.98 8.08 0.36
951.00 6.70 58047 817.33 6.66 6.28 458.15 178.96 8.06 0.38
961.00 8.75 58067 917.34 6.71 6.31 458.15 178.97 8.08 0.40
971.00 6.79 58088 917.34 8.78 6.35 458.15 178.97 8.09 0.42
981.00 6.83 58104 917.34 8.81 8.37 458.15 178.97 8.09 0.43
991.00 8.87 58121 917.34 8.85 8.40 458.15 178.97 8.09 0.45
1001.00 6.91 58137 917.34 6.89 6.43 458.15 178.97 8.09 0.48
1011.00 6.95 58151 917,34 6.93 6.45 458.15 178.97 8.09 0.48
1021.00 6.98 58185 917.34 8.98 6.47 458.15 178.97 8.09 0,49
1031.00 7.01 58178 917.35 8.99 6.49 458.15 178.97 8.09 0,50
1041.00 7.04 58189 917.35 7.02 8.51 458.15 178.97 8.09 0.51
1051.00 7.06 58200 917.35 7.05 6.53 458.15 178.87 8.09 0.52
1081.00 7.09 58209 917.35 7.07 6.54 458.15 178.97 8.09 0.53
1071.00 7.11 58218 917.35 7.09 6.56 458.15 178.87 8.09 0.54
1081.00 7.12 58225 917.35 7.11 8.57 458.15 178.97 8.09 0.54
1091.00 7.14 58231 917.35 7.13 6.58 458.15 178.97 8.09 0.55
1101.00 7.15 58237 917.35 7.14 8.59 458.15 178.97 8.09 0.56
1111.00 7.16 58241 917.35 7.15 8.59 458.15 178.97 8.09 0.56
1121.00 7.17 58244 917.35 7.18 6.80 458.15 178.97 8.09 0.56
1131.00 7.17 58246 917.35 7.17 6.60 458.15 178.97 8.09 0.56
1141.00 7.17 58247 917.35 7.17 6.60 458.15 178.97 8.09 0.57
1151.00 7.17 58247 917.35 7.17 8.80 458.15 178.97 8.09 0.57
1161.00 7.18 58246 917.35 7.17 6.60 458.15 178.97 8.09 0.58
1171.00 7.16 58244 917.35 7.16 8.60 458.15 178.97 8.09 0.56
1181.00 7.15 58240 917.35 7.15 6.59 458.15 178.97 8.09 0.56
1191.00 7.13 58236 917.35 7.14 6.59 458.15 178.97 8.09 0.56
1201.00 7.12 58231 917.35 7.13 8.58 458.15 178.97 8.09 0.55
1211.00 7.10 58225 917.35 7.11 6.57 458.15 178.97 8.09 0.54
1221.00 7.08 58217 917.35 7.09 8.56 458.15 178.97 8.09 0.54

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' Grass Swales
Glennstone
Drainage Area Q=C*i*A Side Lotlines
C= 0.~
i= 4.46 in/hr
A= 0.30 acre
Q= 0.67 cfs
Trapezoidal Channel
Side Slope 1 (Hor to Vert) 3 to 1
Side Slope 2 (Hor to Vert) 3 to 1
Bottom Width in Feet 0
Slope in % 2 = 0.02

CHANNEL,
I,ININ<I
N111NNWGS
n
D}=P"I~H
Pt.I-~I~
HYI) ~
RADIUS

CFS

VGL TIL~ICTIV1
I~(~RCL
PSF
EARTH 0.020 0.28 0.135 0.67 2.75 0.36
GRASS 0.150 0.61 0.288 0.67 0.61 0.76
RIP-RAP 0.060 0.00
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Pagel Westcott Engineering and Consulting PC 9/18/2007