19970656 Ver 1_Stormwater Info_19971222

? _
Y
McKIM&CREED
December 22, 1997
ENGINEERS
SURVEYORS Mr. A. Preston Howard, Jr. P.E.
Division of Water Quality
ARCHITECTS Environmental Sciences Branch
4401 Reedy Creek Rd.
PLANNERS Raleigh, NC 27607
RE: Partners Equity Group - Detention Basin Design
Johnston County
DWQ Project # 970656
Dear Mr. Howard:
M&C 1319-0001.OR
Please find enclosed McKim & Creed's design for the proposed wet detention pond
behind the Factory Stores of America outlet mail in Smithfield, North Carolina. The
existing dry detention basin has been redesigned to handle future design flows from the
Partners Equity site. I have enclosed three sets of preliminary plans and design
calculations.
If you have any questions or require further information, please call.
Best regards,
McKIM & CREED ENGINEERS, P.A.
h;&-?-
Matthew G Roper, E.I.T.
SUITE 117
/mgr
BUILDING I
cc: Dan Simmons - MCE
5625 DILLARD ROAD File
CARY. NC 27511 s:%1 319\0001 \admiMponsub2. doe
PHONE [phone]
FAX [phone]
4PMc1<JM&CREM
TO: Division of Water Quality
Environmental Sciences Branch
4401 Reedy Creek Rd
Raleigh, NC 27607
ATTENTION: Mr. A. Preston Howard, Jr. P.E.
LETTER OF TRANSMITTAL
DATE: December 22, 1997
PROJECT NO: 1319-0001.OR TASK NO:
RE: Partners Equity Group - Wet Pond
Johnston County
DWQ Project # 970656
TRANSMITTAL NO: PAGE 1 OF 1
WE ARE SENDING: ? Originals m Prints
? Specifications o Calculations
? Shop Drawings ? Samples
? Other -
Quantity Drawing No. Rev. Description Status 11
3 Plans and Design Calculations F
Issue Status Code: A. Preliminary B. Fabrication Only C. For Information D. Bid
E. Construction F. For Review & Comments G. For Approval H. See Remarks
Action Status Code: 1. No Exceptions Taken 2. Make Corrections Noted 3. Other
4. Amend & Resubmit 5. Rejected -See Remarks
REMARKS
cc: Dan Simmons - MCE
file
5625 DILLARD ROAD, SUITE 117, CARY, NC 27511 919/233-8091 FAX [phone]
McKIW CREED E-NGIUEERS, PA
Signed
Matthew G. R6Ar, E.I.T.
C:\My Documents\TRANS.doc
r?

POND ROUTING
DESIGN CALCULATIONS
FOR
PARTNERS EQUITY GROUP
Smithfield, N.C.
McKIM & CREED PROJECT NO.
1319-0001.OR
January 1998
MCKIM & CREED ENGINEERS, P.A.
5625 DILLARD ROAD, SUITE 117
CARY, NORTH CAROLINA 27511
[phone]
McK M&CZEED
r
POND ROUTING
DESIGN CALCULATIONS
FOR
PARTNERS EQUITY GROUP
Smithfield, N.C.
MCKIM & CREED PROJECT NO.
1319-0001.OR
January 1998
MCKIM & CREED ENGINEERS, P.A.
5625 DILLARD ROAD, SUITE 117
CARY, NORTH CAROLINA 27511
[phone]
- t
PARTNERS EQUITY DETENTION POND
The following is an outline of our re-evaluation of the existing stormwater detention basin behind
the Factory Stores of America shopping center in Smithfield, NC for its ability to accept
additional runoff from the proposed Partners Equity commercial park under the guidelines of the
Stormwater Best Management Practices provided by NC DEHNR. Under these guidelines, the
' runoff from the first inch of rainfall must be captured and released over a period of two to five
days.
' It is my understanding that the Town of Smithfield will require stormwater management facilities
and controls be provided that will control the runoff from the proposed commercial park. These
facilities and controls must be designed to attenuate the post-development peak discharge rates
to pre-development rates for the 10-year storm and safely pass the discharge from the 100-year
storm. Since Phase I of the Factory Stores was completed prior to the adoption of the
stormwater ordinance by the Town of Smithfield, the pre-development runoff includes partial
development of the Factory Stores property.
An existing dry detention basin, located behind the Factory Stores of America outlet mall, which
' was presumably constructed to provide stormwater control for the shopping center has been
evaluated for its ability to also handle additional runoff from the developed Partners Equity site.
In accordance with the NC DEHNR permit for the Partners Equity Development, the detention
basin will be designed to capture the first inch of runoff from the proposed site.
Before redesigning the basin, the existing basin was evaluated for its ability to handle existing
and proposed flows. The following design assumptions were made in order to perform an
evaluation of the existing basin as the original design data and calculations for the basin were
not available.
Routing Method: Chainsaw Routing (Elements of Urban Stormwater Design, H. R. Malcom,
P.E., 1989)
' Design Storms: 10-yr, 6-hr* rainfall: 3.90-in
100-yr, 6-hr* rainfall: 5.75-in
' *The six-hour duration is selected in this method to yield a hydrograph
comparable in size to that produced by SCS TR-55 and Corp of
' Engineers HEC-1.
Time of Conc.: Kirpich Eq.
' Runoff Coeff.: Undeveloped Areas: 0.10-0.35
Grassed Areas: 0.10-0.35
' Paved Areas: 0.95
Curve Number: Hydrologic Soil Group: B
Commercial Areas: 92
I Undeveloped: 60

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1
Partners Equity Detention Pond
January 30, 1998
Page 2
Contributing Drainage Area:
Site Area Runoff Coeff (C) Post-Dev
(ac) Pre-Dev Post Dev Curve Number
Factory Stores 48.5 0.60 0.85 92
Future Parking/Pond* 15.0 0.15 0.70 92
Hughs Tract 8.5 0.10 0.10 60
Nursery 9.5 0.10 0.60*** 60
Future Site** 14.0 0.15 0.15*** 60
Partners Equity 46.0 0.25 0.75 92
TOTAL 1475 0.33 0.67 81
* Undeveloped, grassed area in rear of Factory Stores shopping center.
** Future site is located to North of Partners Equity site.
*** Post-development runoff coeff. set equal to pre-development coeff. to approximate sites
with existing or future stormwater detention ponds.
Design Factors:
From the assumptions listed above, a peak 10-yr discharge of 116 cfs was calculated for the
contributing drainage area prior to the adoption of the Town's stormwater ordinance. After
development of the Factory Stores site, the post-development unattenuated peak 10-yr
discharge is estimated to be 244 cfs.
The basin was analyzed for existing conditions and proposed improvements. The proposed
improvements consist of regrading the detention basin and impounding water to create a water
quality pond. The Stormwater Best Management Practices outline the procedure for sizing a
wet detention pond. The required surface area of the normal pool of the pond is based on the
depth of the normal pool and the percent imperviousness of the watershed. The required
storage of the pond above the normal pool and, for the first inch of runoff, is determined from the
percent imperviousness and area of the watershed. Based on the data collected, the appropriate
surface area and required storage for the water quality pond were determined. The required
surface area of the normal pool, at a design depth of 4.0 feet, is 1.0 acres, and the required
storage above the normal pool is 2.8 acre-feet. The existing detention basin was redesigned to
exceed these guidelines, while also reducing the post-development peak to a level at or below
the pre-development peak. The normal pool surface area of the proposed wet pond is 1.2 acres
and the storage provided above the normal pool is 3.4 acre-feet.
Once the wet detention pond has been properly sized in accordance with NC DEHNR practices,
a proper outlet structure must be sized to meet the requirements of the Town. The existing 24"
RCP barrel to be removed can be replaced with a shorter length of dual 30" CMPs, and the
block riser to be removed can be replaced with a new 8' x 4' block riser to provide the storage
for the normal water surface elevation of the pond. It appears from the topographic survey of
the basin that the top elevation of the embankment is approximately 143.5'.
hcad\1319\0001 \adminWs-mz.doc
Partners Equity Detention Pond
January 30, 1998
Page 3
Results of Analysis:
' The results of the analysis of the existing detention basin and proposed wet detention pond are
tabulated below:

10-yr 100-yr
Peak Discharge Max. WSE Peak Discharge Max. WSE
No Alterations 132 143.3 196 144.1
Wet Pond 115 141.1 189 143.1
ALLOWABLE 116 142.5 N/A 143.5
The existing detention basin can be converted to a wet detention pond capable of handling the
proposed post-development flows. Regrading of the basin and replacement of the outlet
' structure with dual 30" CMPs produces acceptable discharge and water surface elevation
results. This proposed stormwater detention design satisfies the regulations of the Town of
Smithfield and NC DEHNR.

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1

POND ROUTING NO. 1
EXISTING POND

Overland Flow
Elevation of most remote point, (H 1) = 153.0 feet
' Elevation of point of design, (1-12) = 148.0 feet
Length of travel, (L) = 1600.0 feet
Mult. factor = 2.0
' Travel Time (Overland) = 42.2 minutes
Channel Flow
Elevation of most remote point, (H 1) = 148.0 feet
Elevation of point of design, (1-12) = 143.5 feet
Length of travel, (L) = 1100.0 feet
Mult. factor = 1.0
Travel Time (Channel) = 14.3 minutes
Pipe Flow
' Elevation of most remote point, (H 1) = 0.1 feet
Elevation of point of design, (1-12) = 0.0 feet
Length of travel, (L) = 1.0 feet
Mult. factor = 0.2
Travel Time (Pipe) = 0.0 minutes
Time of Concentration, (Tc) => 56.5 minutes
' Intensity, (I) = 2.48 inches/hr
Composite Runoff Coefficient, (C) => 0.33
' Maximum Release Rate, (Q10) => 116 cfs
Post-Development 10-yr
Drainage Area, (DA) = 141.5 acres
Overland Flow
Elevation of most remote point, (H 1) = 150.2 feet
Elevation of point of design, (H2) = 147.0 feet
Length of travel, (L) = 500.0 feet
' Mult, factor=
Travel Time (Overland) = 2.0
13.1
minutes
Channel Flow
Elevation of most remote point, (H 1) = 147.0 feet
Elevation of point of design, (1-12) = 143.5 feet
' Length of travel, (L) = 2500.0 feet
Mult. factor= 1.0
Travel Time (Channel) = 40.5 minutes
' Pipe Flow
Elevation of most remote point, (H1) = 0.1 feet
Elevation of point of design, (1-12) = 0.0 feet
Length of travel, (L) = 1.0 feet
' Mult. factor = 0.2
Travel Time (Pipe) = 0.0 minutes
Time of Concentration, (Tc) => 53.6 minutes
Intensity, (I) = 2.58 inches/hr
Composite Runoff Coefficient, (C) => 0.67
' Peak Release Rate, (Q10) => 244 cfs
s:\1319\0D01ka1cs\P0NDY.xIs printed: 1/29/982:22 PM Page 1 Of 16
Intensity, (1) = 2.92 inches
Composite Runoff Coefficient, (C) => 0.33
Maximum Release Rate, (Q25) => 136 cfs
Post-Development
D
rainage Area, (DA) = 141.5 acres
' Time of Concentration, (Tc) => 53.6 minutes
Intensity, (I) = 3.03 inches/hr
Composite Runoff Coefficient, (C) => 0.67
Peak Release Rate, (QZ5) => 287 cfs
Pre-Development 100-yr

Drainage Area, (DA) = 141.5 acres
' Ti
f C
n
i
T
=>
me o
o
centrat
on, (
c) 56.5 minutes
Intensity, (1) = 3.56 inches/hr
Composite Runoff Coefficient, (C) => 0.33
Maximum Release Rate, (Q100) => 166 cfs
Post-Development Runoff - 100-yr

' Drainage Area, (DA) = 141.5 acres
Time of Concentration, (Tc) => 53.6 minutes
Intensity
(1) = 3
69 i
h
, . nc
es
' Composite Runoff Coefficient, (C) => 0.67
Peak Release Rate, (Q100) => 350 cfs

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i 4

1

.r Stor age Function

Contour Contour Incr. Accum. Stage
Elev. Area Storage Storage(S) (Z)
(ft) (so (c0 (cf) (ft) In (S) In (Z) Z est

135.2 - - _ - -
136.0 100 40 40 0.80 3.69 -0.22 0.15

137.0
2,480
1,290
1,330
1.80 ... .....
7.19 ......................
0.59
0.64
138.0 43,275 22,878 24,208 2.80 10.09 's 1.03 2.21
139.0 74,235 58,755 82,963 3.80 11.33 1.34 3.73
140.0 79,685 76,960 159,923 4.80 11.98 1.57 4.93
141.0 83,275 81,480 241.403 5.80 € 12.39 1.76 5.87
142.0 87,030 85,153 326,555 6.80 12:70 1.92 6.67
Regression Output:
b= 2.36 (X Variable Coeff)
Ks= 3,738 (ev''ntercept)
Stage - Storage Equation is of the fornl: S = (Ks)(Z) b
7P
Barrel
Dia. of Barrel = 24 inches
Area of Barrel, (Ab) = 3.14 sf
Pipe Length, (L) = 152.0 feet
Orifice Coefficient (Cd) = 0.60
Inv. of Barrel = 135.20 feet
Riser
Elev. of Riser Crest = 139.53 feet
Circular:
Dia. of Riser = 0 inches
Weir Lenght = - feet
Area of Riser = - sq. ft.
Rectangular:
Length of Riser = 5.5 feet
Width of Riser = 5.5 feet
Weir Length = 22 feet
Area of Riser = 30.25 sq.ft.
Emergency Spillway
Width of Spillway (Approx.) = 10 feet
Weir Coefficient = 3.3
Crest Elevation = 141.28 feet
s:\1319\0D01\ealcs\PONDY.;ds printed: 1/29/982:22 PM Page 3 of 16

s:\7 319\0001 tcalw\PON DV.xls
printed: 129/98 2:22 PM
Page 4 of 16

o no o 1 7M

MIT] 1 ..... I
,
Peak Inflow, (Qp) _>
244 cfs
Time to Peak Calculation: CN = 81 P= 3.9 in S= 2.35 in.
Q* = 2.04 in. (depth of runoff)
Vol = 1,046,651 cf (vol. of runoff)
Time to Peak, (Tp) => 51.34 minutes
(SCS TR-55)
t/tp Q/QP t Q
(min) cfs)
0.00 0.000 0 0
0.06 0.008 3 2
0.12 0.033 6 8
' 0.18 0.074 9 18
0.23 0.129 12 31
0.29
0.35 0.196
0.274 15
18 48
67
0.41 0.359 21 88
0.47 0.449 24 110
0.53 0.541 27 132
0.58 0.631 30 154
0.64 0.717 33 175
0.70 0.795 36 194
0.76 0.864 39 211
0.82 0.921 42 225
0.88 0.963 45 235
0.93
0.99 0.990
1.000 48
51 242
244
1.05 0.993 54 243
1.11 0.970 57 237
1.17 0.931 60 228
1.23 0.878 63 215
1.29 0.816 66 199
1.34 0.756 69 185
' 1.40 0.701 72 171
1.46 0.650 75 159
1.52 0.602 78 147
1.58 0.558 81 136
' 1.64 0.517 84 126
1.69 0.479 87 117
1.75 0.444 90 109
1.81 0.412 93 101
1.87 0.382 96 93
1.93 0.354 99 86
1.99 0.328 102 80
' 2.05 0.304 105 74
2.10 0.282 108 69
2.16 0.261 111 64
2.22 0.242 114 59
' 2.28 0.224 117 55
2.34 0.208 120 51
2.40 0.193 123 47
1 2.45 0.179 126 44
2.51 0.166 129 40
2.57 0.153 132 38
2.63 0.142 135 35
2.69 0.132 138 32
2.75 0.122 141 30
2.80 0.113 144 28
1:\1319\0001\calc5\PONDY.xIs printed: 1/29198 2:22 PM Page 5 of 16

2.86 0,105 147 26
2.92 0.097 150 24
' 2.98 0.090 153 22
3.04 0.084 156 20
3.10 0.077 159 19
' 3.16
3.21 0.072
0.067 162
165 18
16
3.27 0.062 168 15
3.33 0.057 171 14
3.39 0.053 174 13
' 3.45 0.049 177 12
3.51 0.046 180 11
3.56 0.042 183 10
' 3.62 0.039 186 10
3.68 0.036 189 9
3.74 0.034 192 8
3.80 0.031 195 8
3.86 0.029 198 7
3.91 0.027 201 7
3.97 0.025 204 6
4.03 0.023 207 6
4.09 0.021 210 5
4.15 0.020 213 5
4.21
4.27 0.018
0.017 216
219 4
4
4.32 0.016 222 4
4.38 0.015 225 4
4.44 0.013 228 3
4.50 0.013 231 3
4.56 0.012 234 3
4.62 0.011 237 3
4.67 0.010 240 2
4.73 0.009 243 2
4.79 0.009 246 2
' 4.85
4.91 0.008
0.007 249
252 2
2
4.97 0.007 255 2
5.03 0.006 258 2
5.08 0.006 261 1
5.14 0.005 264 1
5.20 0.005 267 1
5.26 0.005 270 1
5.32 0.004 273 1
5.38 0.004 276 1
5.43 0.004 279 1
5.49 0.003 282 1
5.55 0.003 285 1
5.61 0.003 288 1
5.67 0.003 291 1
5.73 0.003 294 1
' 5.78 0.002 297 1
5.84 0.002 300 1
5.90
5.96 0.002
0.002 303
306 0
0
6.02 0.002 309 0
6.08 0.002 312 0
6.14 0.001 315 0
6.19 0.001 318 0
6.25 0.001 321 0
6.31 0.001 324 0
' 6.37 0.001 327 0
6.43 0.001 330 0
Is:\1319\0001\calcs\PONDY.xis printed: 1/29198 2:22 PM Page 6 Of 16
0.00 0.00 0 1.80 0.0 0.0 0.0 0.0 0.0
3.00 2.05 0 1.80 0.0 0.0 0.0 0.0 0.0
6.00 8.15 370 1.80 0.0 0.0 0.0 0.0 0.0
9.00 18.07 1836 1.80 0.0 0.0 0.0 0.0 0.0
' 12.00 31.49 5088 1.80 0.0 0.0 0.0 0.0 0.0
15.00 47.97 10757 1.80 0.0 0.0 0.0 0.0 0.0
18.00 66.94 19392 2.01 0.0 0.0 0.0 0.0 0.0
21.00
24.00 87.76
109.75 31440
47237 2.47
2.94 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0
27.00 132.15 66992 3.41 0.0 0.0 0.0 0.0 0.0
30.00 154.22 90778 3.87 0.0 0.0 0.0 0.0 0.0
33.00 175.21 118538 4.34 0.1 13.8 27.6 0.0 0.1
' 36.00 194.43 150065 4.80 23.1 99.4 29.5 0.0 23.1
39.00 211.21 180906 5.19 58.1 135.2 31.0 0.0 31.0
' 42.00
45.00 225.01
235.35 213349
248031 5.57
5.94 100.1
147.8 162.1
184.6 32.3
33.6 0.0
0.0 32.3
33.6
48.00 241.89 284345 6.29 199.4 204.0 34.8 3.2 38.0
51.00 244.41 321047 6.62 252.2 220.6 35.9 13.2 49.1
54.00 242.82 356202 6.92 303.1 234.5 36.8 25.5 62.3
' 57.00 237.18 388690 7.18 350.0 246.1 37.6 38.3 75.9
60.00 227.68 417724 7.41 391.9 255.5 38.3 50.4 88.7
63.00 214.63 442734 7.59 427.7 263.1 38.8 61.4 100.2
66.00 199.47 463332 7.74 457.2 269.0 39.3 70.6 109.9
69.00 184.88 479463 7.85 480.2 273.4 39.6 77.9 117.5
72.00 171.36 491585 7.94 497.4 276.6 39.8 83.5 123.4
75.00
78.00 158.82
147.20 500225
505857 8.00
8.03 509.6
517.6 278.9
280.3 40.0
40.1 87.5
90.1 127.5
130.3
81.00 136.44 508906 8.05 521.9 281.1 40.2 91.6 131.7
84.00 126.46 509750 8.06 523.1 281.3 40.2 92.0 132.2
87.00 117.21 508724 8.05 521.6 281.1 40.2 91.5 131.7
90.00 108.63 506122 8.04 517.9 280.4 40.1 90.3 130.4
93.00 100.69 502205 8.01 512.4 279.4 40.0 88.4 128.5
96.00 93.32 497200 7.98 505.3 278.1 40.0 86.1 126
1
' 99.00 86.50 491306 7.94 497.0 276.6 39.8 83.4 .
123.2
102.00 80.17 484695 7.89 487.6 274.8 39.7 80.3 120.0
105.00 74.30 477518 7.84 477.4 272.9 39.6 77.0 116.6
108.00
111.00 68.87
63.83 469904
461965 7.79
7.73 466.6
455.2 270.8
268.6 39.4
39.2 73.6
70.0 113.0
109.2
114.00 59.16 453796 7.67 443.6 266.3 39.1 66.3 105.4
117.00 54.83 445479 7.61 431.7 263.9 38.9 62.6 101.5
120.00 50.82 437084 7.55 419.7 261.4 38.7 58.9 97.6
' 123.00 47.11 428667 7.49 407.6 258.9 38.5 55.2 93.7
126.00 43.66 420279 7.43 395.5 256.3 38.3 51.5 89.9
129.00 40.47 411957 7.36 383.6 253.7 38.2 48
0 86
1
132.00 37.51 403737 7.30 371.7 251.0 38.0 .
44.5 .
82.5
135.00 34.76 395643 7.24 360.0 248.4 37.8 41.1 78.9
138.00 32.22 387696 7.18 348.6 245.7 37.6 37.9 75.5
141.00 29.86 379913 7.11 337.3 243.0 37.4 34.7 72.1
144.00 27.68 372305 7.05 326.3 240.4 37.2 31.7 68.9
147.00 25.65 364881 6.99 315.6 237.7 37.0 28.8 65.9
150.00 23.78 357645 6.93 305.1 235.1 36.8 26.1 62.9
153.00 22.04 350601 6.88 294.9 232.4 36.7 23.4 60.1
156.00 20.43 343749 6.82 285.0 229.8 36.5 21.0 57.4
159.00 18.93 337086 6.76 275.4 227.2 36.3 18.6 54.9
162.00
165.00 17.55
16.26 330610
324316 6.71
6.65 266.0
256.9 224.6
222.0 36.1
36.0 16.4
14.3 52.5
50.3
168.00 15.07 318199 6.60 248.1 219.4 35.8 12.3 48.1
171.00 13.97 312250 6.55 239.5 216.8 35.6 10.5 46.1
' s:11319\0001\caks\PO NDY.xls printed: 1Y29/98 2:22 PM Page 7 Of 16

174.00 12.95 306463 6.49 231.2 214.3 35.5 8.8 44.3
*
' 177.00
180.00 12.00
11.12 300828
395335 6.44
6.39 223.0
215.1 211.7
209.2 35.3
35.1 7.2
5.8 42.5
40.9
183.00 10.31 289973 6.34 207.4 206.7 35.0 4.5 39.4
186.00 9.56 284731 6.29 199.9 204.2 34.8 3.3 38.1
189.00
192.00 8.86
8.21 279595
274551 6.25
6.20 192.6
185.4 201.6
199.1 34.6
34.5 2.2
1.3 36.9
35.8
195.00 7.61 269580 6.15 178.3 196.5 34.3 0.6 34.9
198.00 7.05 264660 6.10 171.3 193.9 34.2 0.1 34.3
201.00 6.54 259759 6.05 164.3 191.2 34.0 0.0 34.0
204.00 6.06 254815 6.00 157.4 188.5 33.8 0.0 33.8
207.00 5.62 249814 5.95 150.3 185.6 33.7 0.0 33.7
210.00 5.20 244764 5.90 143.2 182.7 33.5 0
0 33
5
' 213.00 4.82 239672 5.85 136.1 179.6 33.3 .
0.0 .
33.3
216.00 4.47 234543 5.80 129.0 176.4 33.1 0.0 33.1
219.00 4.14 229384 5.74 121.9 173.1 32.9 0.0 32.9
222.00 3.84 224200 5.69 114.8 169.7 32.7 0.0 32.7
' 225.00 3.56 218997 5.63 107.7 166.1 32.6 0.0 32.6
228.00 3.30 213778 5.57 100.7 162.4 32.3 0.0 32.3
231.00 3.06 208549 5.52 93.7 158.6 32.1 0.0 32.1
' 234.00 2.83 203314 5.46 86.7 154.6 31.9 0.0 31.9
237.00 2.63 198077 5.40 79.9 150.4 31.7 0.0 31.7
240.00 2.43 192841 5.33 73.1 146.0 31.5 0.0 31.5
' 243.00
246.00 2.26
2.09 187610
182388 5.27
5.21 66.5
59.9 141.4
136.6 31.3
31.0 0.0
0.0 31.3
31.0
249.00 1.94 177178 5.15 53.5 131.6 30.8 0.0 30.8
252.00 1.80 171982 5.08 47.3 126.3 30.6 0.0 30.6
255.00 1.67 166805 5.02 41.3 120.7 30.3 0.0 30.3
258.00 1.54 161648 4.95 35.4 114.7 30.1 0.0 30.1
261.00 1.43 156515 4.88 29.8 108.3 29.8 0.0 29.8
264.00 1.33 151407 4.81 24.5 101.3 29.5 0.0 24.5
' 267.00 1.23 147244 4.76 20.3 95.2 29.3 0.0 20.3
270.00 1.14 143814 4.71 17.0 89.8 29.1 0.0 17.0
273.00 1.06 140957 4.67 14.4 84.9 29.0 0.0 14.4
' 276.00
279.00 0.98
0.91 138555
136517 4.64
4.61 12.3
10.6 80.6
76.7 28.8
28.7 0.0
0.0 12.3
10.6
282.00 0.84 134775 4.58 9.2 73.1 28.6 0.0 9.2
285.00 0.78 133273 4.56 8.0 69.9 28.5 0.0 8.0
288.00 0.72 131969 4.54 7.1 66.9 28.5 0.0 7.1
291.00 0.67 130830 4.52 6.2 64.3 28.4 0.0 6.2
294.00 0.62 129829 4.51 5.5 61.8 28.3 0.0 5.5
297.00 0.57 128944 4.50 4.9 59.5 28.3 0.0 4.9
300.00 0.53 128157 4.49 4.4 57.4 28.2 0.0 4.4
303.00 0.49 127455 4.47 4.0 55.4 28.2 0.0 4.0
306.00 0.46 126825 4.47 3.6 53.6 28.2 0.0 3.6
309.00 0.42 126257 4.46 3.3 51.9 28.1 0.0 3.3
' 312.00 0.39 125744 4.45 3.0 50.3 28.1 0.0 3.0
315.00 0.36 125278 4.44 2.7 48.8 28.1 0.0 2.7
318.00 0.34 124853 4.44 2.5 47.3 28.0 0.0 2.5
' 321.00 0.31 124465 4.43 2.3 46.0 28.0 0.0 2.3
324.00 0.29 124109 4.42 2.1 44.8 28.0 0.0 2.1
327.00 0.27 123783 4.42 1.9 43.6 28.0 0.0 1.9
330.00 0.25 123481 4.41 1.8 42.4 28.0 0.0 1.8

I S:\1319\0001\calw\PONDYAS printed: 129/98 2:22 PM Page 8 of 16
r'
i
i
i
i
t/?t 1? Q/Qn c Q
(min) cfs
0.00 0.000 0 0
0.05 0.007 3 2
0.11 0.027 6 8
0.16 0.060 9 17
0.21 0.106 12 30
0.26 0.162 15 46
0.32 0.227 18 65
0.37 0.300 21 86
0.42 0.378 24 109
0.47 0.460 27 132
0.53 0.543 30 156
0.58 0.624 33 179
0.63 0.702 36 202
0.69 0.775 39 222
0.74 0.840 42 241
0.79 0.896 45 257
0.84 0.941 48 270
0.90 0.974 51 279
0.95 0.994 54 285
1.00 1.000 57 287
1.05 0.993 60 285
1.11 0.972 63 279
1.16 0.938 66 269
1.21 0.893 69 256
1.27 0.838 72 240
1.32 0.782 75 225
1.37 0.731 78 210
1.42 0.682 81 196
1.48 0.637 84 183
1.53 0.595 87 171
1.58 0.555 90 159
1.63 0.519 93 149
1.69 0.484 96 139
1.74 0.452 99 130
1.79 0.422 102 121
1.85 0.394 105 113
1.90 0.368 108 106
1.95 0.344 111 99
2.00 0.321 114 92
2.06 0.300 117 86
2.11 0.280 120 80
2.16 0.261 123 75
2.21 0.244 126 70
2.27 0.228 129 65
2.32 0.213 132 61
2.37 0.199 135 57
2.42 0.186 138 53
2.48 0.173 141 50
2.53 0.162 144 46
s11319%00011CaICS%PONDY.xl$ printed: 1/29/98 2:22 PM
Page 9 of 16

2.58 1 147 43
2.64
2.69 0.141
0.132 150
153 40
38
2.74 0.123 156 35
2.79 0.115 159 33
2.85
2.90 0.107
0.100 162
165 31
29
2.95 0.093 168 27
3.00 0.087 171 25
3.06 0.082 174 23
3.11 0.076 177 22
3.16 0.071 180 20
3.22 0.066 183 19
' 3.27 0.062 186 18
3.32 0.058 189 17
3.37 0.054 192 16
3.43 0.050 195 14
' 3.48 0.047 198 14
3.53 0.044 201 13
3.58 0.041 204 12
3.64 0.038 207 11
' 3.69 0.036 210 10
3.74 0.033 213 10
' 3.80
3.85 0.031
0.029 216
219 9
8
3.90 0.027 222 8
3.95 0.025 225 7
4.01 0.024 228 7
4.06 0.022 231 6
4.11 0.021 234 6
4.16 0.019 237 6
' 4.22 0.018 240 5
4.27 0.017 243 5
4.32 0.016 246 5
4.38
4.43 0.015
0.014 249
252 4
4
4.48 0.013 255 4
4.53 0.012 258 3
4.59 0.011 261 3
4.64 0.010 264 3
4.69 0.010 267 3
4.74 0.009 270 3
' 4.80 0.008 273 2
4.85 0.008 276 2
4.90 0.007 279 2
4.96 0.007 282 2
5.01 0.006 285 2
5.06 0.006 288 2
5.11 0.006 291 2
5.17 0.005 294 2
' 5.22 0.005 297 1
5.27 0.005 300 1
5.32 0.004 303 1
1 5.38 0.004 306 1
5.43 0.004 309 1
5.48 0.003 312 1
5.54 0.003 315 1
5.59 0.003 318 1
5.64 0.003 321 1
5.69 0.003 324 1
5.75 0.002 327 1
5.80 0.002 330 1
Is:\1319\000I\calcs\PONDY.xls printed: 1/29/98 2:22 PM Page 10 of 16
?w i ?? ?? a
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WEIR ORIFICE EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL PILLWAY UTFL0IY
min) cfs) (cif @0 cfs cfs (cfs) (cfs) cfs
0.00 0.00 0 1.80 0.0 0.0 0.0 0.0 0.0
3.00 1.96 0 1.80 0.0 0.0 0.0 0.0 0.0
6.00 7.80 353 1.80 0.0 0.0 0.0 0.0 0.0
9.00 17.35 1758 1.80 0.0 0.0 0.0 0.0 0.0
12.00 30.35 4881 1.80 0.0 0.0 0.0 0.0 0.0
15.00 46.45 10345 1.80 0.0 0.0 0.0 0.0 0.0
18.00 65.21 18707 1.98 0.0 0.0 0.0 0.0 0.0
21.00
24.00 86.11
108.58 30445
45944 2.44
2.90 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0
27.00 132.00 65488 3.37 0.0 0.0 0.0 0.0 0.0
30.00 155.74 89249 3.85 0.0 0.0 0.0 0.0 0.0
33.00 179.15 117283 4.32 0.0 0.0 0.0 0.0 0.0
' 36.00 201.58 149530 4.79 22.6 98.6 29.4 0.0 22.6
39.00 222.42 181755 5.20 59.2 136.0 31.0 0.0 31.0
42.00 241.10 216210 5.60 103.9 164.2 32.4 0.0 32.4
' 45.00 257.11 253768 5.99 155.9 187.9 33.8 0.0 33.8
48.00 270.02 293964 6.38 213.2 208.6 35.1 5.4 40.5
51.00 279.46 335273 6.75 272.8 226.4 36.3 18.0 54.2
54.00 285.18 375813 7.08 331.4 241.6 37.3 33.1 70.4
57.00 287.02 414474 7.38 387.2 254.5 38.2 49.1 87.3
60.00 284.94 450430 7.65 438.8 265.3 39.0 64.8 103.8
63.00 278.98 483037 7.88 485.2 274.4 39.7 79.6 119.2
66.00 269.32 511789 8.07 525.9 281.8 40.2 92.9 133.2
69.00 256.22 536300 8.24 560.4 287.9 40.7 104.5 145.2
72.00 240.49 556291 8.36 588.4 292.6 41.1 114.0 155.0
75.00
78.00 224.56
209.69 571674
582815 8.46
8.53 609.9
625.3 296.1
298.6 41.3
41.5 121.3
126.7 162.7
168.2
81.00 195.80 590279 8.58 635.7 300.2 41.6 130.3 171.9
84.00 182.83 594572 8.60 641.6 301.1 41.7 132.4 174.1
87.00 170.72 596145 8.61 643.8 301.5 41.7 133.1 174.9
90.00 159.41 595396 8.61 642.8 301.3 41.7 132.8 174.5
93.00 148.85 592679 8.59 639.0 300.7 41.7 131.5 173.1
96.00 138.99 588306 8.57 633.0 299.8 41.6 129.4 171.0
' 99.00 129.79 582552 8.53 625.0 298.5 41.5 126.6 168.1
102.00 121.19 575658 8.49 615.4 297.0 41.4 123.3 164.7
105.00 113.16 567835 8.44 604.5 295.2 41.3 119.5 160.8
' 108.00
111.00 105.67
98.67 559267
550116 8.38
8.33 592.6
579.8 293.3
291.1 41.1
40.9 115.4
111.0 156.5
152.0
114.00 92.13 540522 8.26 566.4 288.9 40.8 106.5 147.2
117.00 86.03 530603 8.20 552.4 286.5 40.6 101.8 142.4
120.00 80.33 520465 8.13 538.2 284.0 40.4 97.0 137.4
123.00 75.01 510195 8.06 523.7 281.4 40.2 92.2 132.4
126.00 70.04 499870 7.99 509.1 278.8 40.0 87.4 127.4
129.00 65.40 489553 7.92 494.5 276.1 39.8 82.6 122.4
' 132.00 61.07 479297 7.85 479.9 273.4 39.6 77.9 117.5
135.00 57.03 469149 7.78 465.5 270.6 39.4 73.2 112.6
138.00 53.25 459143 7.71 451.2 267.8 39.2 68.7 107.9
141.00
144.00 49.72
46.43 449309
439672 7.64
7.57 437.2
423.4 265.0
262.2 39.0
38.8 64.3
60.0 103.3
98.8
147.00 43.35 430249 7.50 409.8 259.3 38.6 55.9 94.4
150.00 40.48 421054 7.43 396.6 256.5 38.4 51.9 90.2
153.00 37.80 412098 7.36 383.8 253.7 38.2 48.0 86.2
' 156.00 35.30 403386 7.30 371.2 250.9 38.0 44.4 82.3
159.00 32.96 394922 7.23 359.0 248.1 37.8 40.8 78.6
' 162.00
165.00 30.78
28.74 386708
378741 7.17
7.11 347.2
335.6 245.4
242.6 37.6
37.4 37.5
34.3 75.0
71.6
168.00 26.83 371020 7.04 324.5 239.9 37.2 31.2 68.4
171.00 25.06 363541 6.98 313.7 237.2 37.0 28.3 65.3
' s: 1131910001 \calcsTO N DY
xls ted: 11291982:22 PM
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Page 11 of 16

174.00 23.40 356206 6.92 303.2 234.6 36.8 25.6 62.4
177.00 21.85 349281 6.87 293.0 231.9 36
6 23
0 59
6
180.00 20.40 342488 6.81 283.2 229.3 .
36.5 .
20.5 .
57.0
183.00 19.05 335908 6.75 273.7 226.7 36.3 18.2 54.5
186.00 17.79 329532 6.70 264.5 224.1 36.1 16.0 52.1
189.00
192.00 16.61
15.51 323352
317358 6.64
6.59 255.5
246.9 221.6
219.0 35.9
35.8 14.0
12.1 49.9
47.8
195.00 14.48 311540 6.54 238.5 216.5 35.6 10.3 45.9
198.00 13.52 305886 6.49 230.3 214.0 35.4 8.6 44.1
201.00 12.63 300387 6.44 222.4 211.5 35.3 7.1 42.4
204.00 11.79 295030 6.39 214.7 209.1 35.1 5.7 40.8
207.00 11.01 289804 6.34 207.2 206.6 35.0 4.4 39.4
210.00 10.28 284696 6.29 199.9 204.1 34.8 3.3 38
1
' 213.00 9.60 279693 6.25 192.7 201.7 34.7 2.3 .
36.9
216.00 8.96 274778 6.20 185.7 199.2 34.5 1.4 35.9
219.00 8.37 269934 6.15 178.8 196.7 34.3 0.7 35.0
' 222.00
225.00 7.82
7.30 265141
260369 6.11
6.06 172.0
165.2 194.2
191.6 34.2
34.0 0.1
0.0 34.3
34.0
228.00 6.81 255557 6.01 158.4 188.9 33.9 0.0 33.9
231.00 6.36 250688 5.96 151.5 186.1 33.7 0.0 33.7
234.00 5.94 245767 5.91 144.6 183.3 33.5 0.0 33.5
237.00 5.55 240802 5.86 137.7 180.3 33.4 0.0 33.4
240.00 5.18 235796 5.81 130.8 177.2 33.2 0.0 33.2
243.00
246.00 4.84
4.52 230757
225689 5.76
5.70 123.8
116.8 174.0
170.7 33.0
32.8 0.0
0.0 33.0
32.8
249.00 4.22 220597 5.65 109.9 167.2 32.6 0.0 32.6
252.00 3.94 215486 5.59 103.0 163.6 32.4 0.0 32.4
255.00 3.68 210360 5.54 96.1 159.9 32.2 0.0 32.2
' 258.00 3.43 205223 5.48 89.3 156.0 32.0 0.0 32.0
261.00 3.21 200080 5.42 82.5 152.0 31.8 0.0 31.8
264.00 2.99 194933 5.36 75.8 147.8 31.6 0.0 31.6
267.00 2.80 189788 5.30 69.2 143.4 31.4 0.0 31.4
270.00 2.61 184645 5.24 62.7 138.7 31.1 0.0 31.1
273.00 2.44 179511 5.17 56.4 133.9 30.9 0.0 30.9
276.00
279.00 2.28
2.13 174386
169274 5.11
5.05 50.2
44.1 128.8
123.4 30.7
30.4 0.0
0.0 30.7
30.4
282.00 1.98 164179 4.98 38.3 117.7 30.2 0.0 30.2
285.00 1.85 159103 4.92 32.6 111.5 29.9 0.0 29.9
288.00 1.73 154048 4.85 27.2 105.0 29.7 0.0 27.2
' 291.00 1.62 149465 4.79 22.5 98.5 29.4 0.0 22.5
294.00 1.51 145709 4.74 18.8 92.8 29.2 0.0 18.8
297.00 1.41 142596 4.69 15.9 87.8 29.1 0.0 15.9
300.00 1.32 139990 4.66 13.5 83.2 28.9 0.0 13.5
303.00 1.23 137789 4.63 11.6 79.1 28.8 0.0 11.6
306.00 1.15 135914 4.60 10.1 75.5 28.7 0.0 10.1
309.00
312.00 1.07
1.00 134303
132909 4.58
4.55 8.8
7.7 72.1
69.1 28.6
28.5 0.0
0.0 8.8
7.7
315.00 0.93 131695 4.54 6.9 66.3 28.4 0.0 6.9
318.00 0.87 130630 4.52 6.1 63.8 28.4 0.0 6.1
321.00 0.81 129690 4.51 5.4 61.4 28.3 0.0 5.4
324.00 0.76 128857 4.50 4.9 59.3 28.3 0.0 4.9
327.00 0.71 128114 4.48 4.4 57.2 28.2 0.0 4.4
330.00 0.66 127448 4.47 4.0 55.4 28.2 0
0 4
0
. .
1

I s11319XD0011caIcs\PONDY.xls printed: 1129198 2:22 PM Page 12 Of 16
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
t/?t, Q/Qn t Q
min) cfs
0.00 0.000 0 0
0.05 0.010 3 4
0.11 0.040 6 14
0.16 0.089 9 31
0.21 0.154 12 54
0.26 0.234 15 82
0.32 0.324 18 113
0.37 0.421 21 147
0.42 0.522 24 182
0.47 0.621 27 .217
0.53 0.716 30 250
0.58 0.802 33 280
0.63 0.876 36 306
0.69 0.934 39 327
0.74 0.975 42 341
0.79 0.997 45 348
0.84 0.998 48 349
0.90 0.979 51 342
0.95 0.941 54 329
1.00 0.885 57 309
1.05 0.817 60 286
1.11 0.752 63 263
1.16 0.692 66 242
1.21 0.636 69 222
1.27 0.585 72 205
1.32 0.538 75 188
1.37 0.495 78 173
1.42 0.456 81 159
1.48 0.419 84 147
1.53 0.386 87 135
1.58 0.355 90 124
1.63 0.326 93 114
1.69 0.300 96 105
1.74 0.276 99 97
1.79 0.254 102 89
1.85 0.234 105 82
1.90 0.215 108 75
1.95 0.198 111 69
2.00 0.182 114 64
2.06 0.167 117 58
2.11 0.154 120 54
2.16 0.142 123 49
2.21 0.130 126 46
2.27 0.120 129 42
2.32 0.110 132 39
2.37 0.101 135 35
2.42 0.093 138 33
2.48 0.086 141 30
2.53 0.079 144 28
s:\7319\0001\calu\PONDY.xis printed: 1/29/98 2:22 PM
Page 13 of 16
1

® I Q D t rS yi,, !. ir5 1r:
` 2.58 0.0 -11 " 147 2,
2.64 0.067 150 23
i?
2.69
0.061
153
21
2.74 0.057 156 20
2.79 0.052 159 18
2.85 0.048 162 17
2.90 0.044 165 15
2.95 0.040 168 14
3.00 0.037 171 13
3.06 0.034 174 12
3.11 0.032 177 11
3.16 0.029 180 10
3.22 0.027 183 9
3.27 0.025 186 9
3.32 0.023 189 8
3.37 0.021 192 7
3.43 0.019 195 7
3.48 0.018 198 6
3.53 0.016 201 6
3.58 0.015 204 5
3.64 0.014 207 5
3.69 0.013 210 4
3.74 0.012 213 4
3.80 0.011 216 4
3.85 0.010 219 3
3.90 0.009 222 3
3.95 0.008 225 3
4.01 0.008 228 3
4.06 0.007 231 2
4.11 0.006 234 2
4.16 0.006 237 2
4.22 0.005 240 2
4.27 0.005 243 2
4.32 0.005 246 2
4.38
4.43 0.004
0.004 249
252 1
1
4.48 0.004 255 1
4.53 0.003 258 1
4.59 0.003 261 1
4.64 0.003 264 1
4.69 0.003 267 1
4.74 0.002 270 1
4.80 0.002 273 1
4.85 0.002 276 1
4.90 0.002 279 1
4.96
5.01 0.002
0.002 282
285 1
1
5.06 0.001 288 1
5.11 0.001 291 0
5.17 0.001 294 0
5.22 0.001 297 0
5.27 0.001 300 0
5.32 0.001 303 0
5.38 0.001 306 0
5.43 0.001 309 0
5.48 0.001 312 0
5.54 0.001 315 0
5.59 0.001 318 0
5.64 0.001 321 0
5.69 0.001 324 0
5.75 0.000 327 0
5.80 0.000 330 0
s:\7319\00011calcMPONDY.xts printed: 1/29/98 2:22 PM Page 14 of 16

1 I , 1 I' 1 1 1
NVEIR
TUME INFLOW STORAGE STAGE RISER ORIFICE
RISER EIMERGENCY TOTAL
BARREL PILLWAI UTFLOW
min cfs) (co (ft) (cfs) cfs cfs cfs) (cfs
0.00 0.00 0 1.80 0.0 0.0 0.0 0.0 0.0
3.00 3.55 0 1.80 0.0 0.0 0.0 0.0 0.0
6.00 14.04 638 1.80 0.0 0.0 0.0 0.0 0.0
9.00 31.06 3166 1.80 0.0 0.0 0.0 0.0 0.0
12.00 53.91 8756 1.80 0.0 0.0 0.0 0.0 0.0
15.00 81.66 18459 1.97 0.0 0.0 0.0 0.0 0.0
18.00 113.19 33157 2.53 0.0 0.0 0.0 0.0 0.0
21.00
24.00 147.23
182.38 53532
80033 3.10
3.67 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0
27.00 217.23 112861 4.25 0.0 0.0 0.0 0.0 0.0
30.00 250.35 151962 4.82 25.0 102.1 29.6 0.0 25.0
33.00 280.42 192522 5.33 72.7 145.7 31.5 0.0 31.5
36.00 306.20 237331 5.83 132.9 178.2 33.2 0.0 33.2
39.00 326.65 286464 6.31 202.4 205.0 34.9 3.7 38.5
42.00 340.94 338327 6.77 277.2 227.6 36.3 19.0 4
55
45.00 348.49 389728 7.19 351.5 246.4 37.6 38.7 .
76.3
48.00 349.00 438716 7.56 422.0 261.9 38.8 59.6 98.3
51.00 342.44 483836 7.88 486.4 274.6 39.7 79.9 119.6
54.00 329.09 523942 8.15 543.1 284.9 40.5 98.6 139.1
57.00 309.47 558142 8.38 591.0 293.0 41.1 114.9 155.9
60.00 285.75 585776 8.55 629.5 299.2 41.6 128.1 169.7
63.00 262.86 606665 8.68 658.3 303.7 41.9 138.2 180.1
66.00 241.81 621553 8.77 678.8 306.9 42.2 145.5 187.6
69.00 222.44 631307 8.83 692.2 308.9 42.3 150.2 192.5
72.00 204.62 636692 8.86 699.6 309.9 42.4 152.8 195.2
75.00
78.00 188.23
173.16 638382
636969 8.87
8.86 701.9
700.0 310.3
310.0 42.4
42.4 153.7
153.0 196.1
195.4
81.00 159.29 632970 8.84 694.5 309.2 42.3 151.0 193.4
84.00 146.53 626838 8.80 686.1 307.9 42.2 148.0 190.3
87.00 134.79 618963 8.75 675.3 306.3 42.1 144.2 186.3
90.00 124.00 609689 8.70 662.5 304.4 42.0 139.7 181.7
93.00 114.07 599309 8.63 648.2 302.2 41.8 134.7 176.5
96.00 104.93 588077 8.56 632.6 299.7 41.6 129.2 170.8
99.00 96.52 576212 8.49 616.2 297.1 41.4 123.5 164.9
102.00 88.79 563899 8.41 599.0 294.3 41.2 117.6 158.8
105.00 81.68 551297 8.33 581.4 291.4 41.0 111.6 152.6
108.00
111.00 75.14
69.12 538539
525737 8.25
8.17 563.6
545.6 288.4
285.3 40.7
40.5 105.5
99.5 146.3
140.0
114.00 63.58 512985 8.08 527.6 282.1 40.3 93.5 133.7
117.00 58.49 500358 8.00 509.8 278.9 40.0 87.6 127.6
120.00 53.81 487919 7.91 492.2 275.7 39.8 81.8 121.6
123.00 49.50 475718 7.83 474.8 272.4 39.5 76.2 115.7
126.00 45.53 463793 7.74 457.8 269.1 39.3 70.8 110.1
129.00 41.89 452175 7.66 441.3 265.8 39.0 65.6 104.6
132.00 38.53 440886 7.58 425.1 262.5 38.8 60.5 99.3
135.00 35.44 429940 7.50 409.4 259.3 38.6 55.7 94.3
138.00 32.61 419347 7.42 394.2 256.0 38.3 51.1 89.5
141.00 29.99 409112 7.34 379.5 252.8 38.1 46.8 84.9
144.00 27.59 399236 7.27 365.2 249.6 37.9 42.6 80.5
147.00 25.38 389715 7.19 351.5 246.4 37.6 38.7 76.3
150.00 23.35 380544 7.12 338.2 243.3 37.4 35.0 72.4
153.00 21.48 371715 7.05 325.5 240.2 37.2 31.5 68.7
156.00 19.76 363219 6.98 313.2 237.1 37.0 28.2 65.2
159.00 18.18 355045 6.91 301.4 234.1 36.8 25.1 61.9
162.00
165.00 16.72
15.38 347180
339611 6.85
6.78 290.0
279.0 231.1
228.2 36.6
36.4 22.2
19.5 58.8
55.9
168.00 14.15 332325 6.72 268.5 225.2 36.2 17.0 53.1
171.00 13.02 325307 6.66 258.4 222.4 36.0 14.6 50.6
s:\1319\00011calm\PONDY
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174.00 11.97' 3185-I I 6.60 248.6 219.5 35.5 12.4 48.2
177.00 11.01 312013 6.54 239.2 216.7 35.6 10.4 46
0
180.00 10.13 305708 6.49 230.1 213.9 35.4 8.6 .
44.0
183.00 9.32 299608 6.43 221.3 211.2 35.3 6.9 42.2
186.00 8.57 293698 6.38 212.8 208.4 35.1 5.4 40.4
189.00
192.00 7.89
7.26 287961
282378 6.32
6.27 204.5
196.5 205.7
203.0 34.9
34.7 4.0
2.8 38.9
37.5
195.00 6.67 276930 6.22 188.8 200.3 34.6 1.7 36.3
198.00 6.14 271596 6.17 181.2 197.6 34.4 0.9 35.3
201.00 5.65 266351 6.12 173.7 194.8 34.2 0.3 34.5
204.00 5.20 261162 6.07 166.3 192.0 34.1 0.0 34.1
207.00 4.78 255968 6.02 159.0 189.1 33.9 0.0 33.9
210.00 4.40 250730 5.96 151.6 186.2 33.7 0.0 33
7
213.00 4.04 245455 5.91 144.2 183.1 33.5 0.0 .
33.5
216.00 3.72 240149 5.86 136.8 179.9 33.3 0.0 33.3
219.00 3.42 234819 5.80 129.4 176.6 33.1 0.0 33.1
222.00 3.15 229470 5.74 122.0 173.2 32.9 0.0 32.9
225.00 2.90 224106 5.69 114.7 169.6 32.7 0.0 32.7
228.00 2.66 218733 5.63 107.4 165.9 32.5 0.0 32.5
231.00 2.45 213356 5.57 100.1 162.1 32.3 0.0 32.3
234.00 2.25 207977 5.51 92.9 158.1 32.1 0.0 32.1
237.00 2.07 202601 5.45 85.8 154.0 31.9 0.0 31.9
240.00 1.91 197232 5.39 78.8 149.7 31.7 0.0 31.7
243.00
246.00 1.76
1.61 191873
186528 5.32
5.26 71.9
65, 1 145.2
140.5 31.5
31.2 0.0
0.0 31.5
31.2
249.00 1.49 181198 5.20 58.5 135.5 31.0 0.0 31.0
252.00 1.37 175889. 5.13 52.0 130.3 30.7 0.0 30.7
255.00 1.26 170601 5.06 45.7 124.8 30.5 0.0 30.5
258.00 1.16 165338 5.00 39.6 119.0 30.2 0.0 30.2
261.00 1.06 160102 4.93 33.7 112.8 30.0 0.0 30.0
264.00 0.98 154896 4.86 28.1 106.1 29.7 0.0 28.1
267.00 0.90 150017 4.80 23.0 99.4 29.5 0.0 23.0
270.00 0.83 146032 4.74 19.1 93.4 29.3 0.0 19.1
273.00 0.76 142741 4.70 16.0 88.0 29.1 0.0 16.0
276.00
279.00 0.70
0.64 139995
137682 4.66
4.62 13.5
11.6 83.2
78.9 28.9
28.8 0.0
0.0 13.5
11.6
282.00 0.59 135718 4.60 9.9 75.1 28.7 0.0 9.9
285.00 0.55 134036 4.57 8.6 71.6 28.6 0.0 8.6
288.00 0.50 132585 4.55 7.5 68.4 28.5 0.0 7.5
291.00 0.46 131324 4.53 6.6 65.4 28.4 0.0 6.6
294.00 0.42 130222 4.52 5.8 62.8 28.4 0.0 5.8
297.00 0.39 129253 4.50 5.1 60.3 28.3 0.0 5.1
300.00 0.36 128397 4.49 4.6 58.0 28.3 0.0 4.6
303.00 0.33 127635 4.48 4.1 55.9 28.2 0.0 4.1
306.00 0.30 126956 4.47 3.7 54.0 28.2 0.0 3.7
309.00
312.00 0.28
0.26 126346
125797 4.46
4.45 3.3
3.0 52.1
50.4 28.1
28.1 0.0
0.0 3.3
3.0
315.00 0.24 125301 4.44 2.7 48.8 28.1 0.0 2.7
318.00 0.22 124852 4.44 2.5 47.3 28.0 0.0 2.5
321.00 0.20 124442 4.43 2.3 45.9 28.0 0.0 2.3
324.00 0.18 124068 4.42 2.1 44.6 28.0 0.0 2.1
327.00 0.17 123726 4.42 1.9 43.4 28.0 0.0 1.9
330.00 0.16 123412 4.41 1.8 42.2 27
9 0
0 1
8
' . . .

1
I s:11319WOD11calcstPONDY,ds printed: 1/29198 2:22 PM Page 16 of 16

Inflow / Outflow Hydrograph
Factory Stores Pond
10-yr Storm Event
260
240
220
200
180
160
?'- 140
c?
c7,
0
120
Cn
100
80
60
40
20
0
0
t INFLOW
-®--OUTFLOW
30 60 90 120 150 180 210 240 270 300 330
Time (min)
i
Inflow / Outflow Hydrograph
Factory Stores Pond
25-yr Storm Event
300
280
260
240
220
200
180
U)
160
ci)
140
a
120
100
80
60
40
20
0 11
0
-? INFLOW
OUTFLOW
30 60 90 120 150 180 210 240 270 300 330
Time (min)

Inflow / Outflow Hydrograph
Factory Stores Pond
100-yr Storm Event
360
340
320
300
280
260
240
220
U200
180
0
160
0
140
120
100
80
60
40
20
0
0
?-INFLOW
?- OUTFLOW
30 60 90 120 150 180 210 240 270 300 330
Time (min)

POND ROUTING NO. 2
PROPOSED ALTERATIONS

DESIGN REQUIREMENTS:
. r
A. Pond Routing - Evaluate existing detention basin with additional grading and new outlet structure
Pre-Development Runoff 10-yr
' Drainage Area, (DA) = 141.5 acres
Overland Flow
Elevation of most remote point, (H 1) = 153.0 feet
' Elevation of point of design, (H2) = 148.0 feet
Length of travel, (L) = 1600.0 feet

' Mult. factor =
Travel Time (Overland) = 2.0
42.2
minutes
Channel Flow
Elevation of most remote point, (H 1) = 148.0 feet
Elevation of point of design, (H2) = 143.5 feet
Length of travel, (L) = 1100.0 feet
Mult. factor = 1.0
Travel Time (Channel) = 14.3 minutes
t Pipe Flow
Elevation of most remote point, (H1) = 0.1 feet
Elevation of point of design, (H2) = 0.0 feet
Length of travel. (L) = 1.0 feet
' Mult. factor= 0.2
Travel Time (Pipe) = 0.0 minutes
Time of Concentration, (Tc) => 56.5 minutes
' Intensity, (1) = 2.48 inches/hr
Composite Runoff Coefficient, (C) => 0.33
Maximum Release Rate, (Q10) => 116 cfs
Post-Development 10-yr
' Draina
e Area
(DA) =
g
, 141.5 acres
Overland Flow
Elevation of most remote point, (H1) =
150.2
feet
Elevation of point of design, (1-12) = 147.0 feet
Length of travel, (L) = 500.0 feet
Mult. factor= 2.0
' Travel Time (Overland) = 13.1 minutes
Channel Flow
Elevation of most remote point, (H1) = 147.0 feet
Elevation of point of design, (112) = 143.5 feet
Length of travel, (L) = 2500.0 feet
Mult. factor = 1.0
Travel Time (Channel) = 40.5 minutes
' Pipe Flow
Elevation of most remote point, (H1) = 0.1 feet
Elevation of point of design, (H2) = 0.0 feet
Length of travel, (L) = 1.0 feet
' Mult. factor = 0.2
Travel Time (Pipe) = 0.0 minutes
' Time of Concentration, (Tc) => 53.6 minutes
Intensity, (I) = 2.58 inches/hr
Composite Runoff Coefficient, (C) => 0.67
' Peak Release Rate, (Qlo) => 244 cfs
' s:\1319\0001 tcalestREVPONDZ
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Page 1 of 16
I' I' / W. 10 I '

Pre-Development Runoff

' Drainage Area, (DA) = 141.5 acres
Time of Concentration, (Tc) => 56.5 minutes
Intensity, (I) = 2.92 inches
Composite Runoff Coefficient, (C) => 0.33
' Maximum Release Rate
(Q
) => 1 f
,
25 36 c
s
Post-Development Runoff - 25-yr

Drainage Area, (DA) = 141.50 acres
Time of Concentration, (Tc) => 53.6 minutes
Intensity, (1) = 3.03 inches/hr
Composite Runoff Coefficient, (C) => 0.67
Peak Release Rate, (Q25) => 287 cfs
' 1 op 1 Runoff - 100-yr

' Drainage Area, (DA) = 141.50 acres
Time of Concentration, (Tc) => 56.5 minutes
Intensity, (I) = 3.56 inches/hr
Composite Runoff Coefficient, (C) => 0.33
' Maximum Release Rate, (Q100) => 166 cfs
Post-Development 00-yr
Drainage Area
(DA) = 141
5
, . acres
Time of Concentration, (Tc) =>
I
i 53.6 minutes
ntens
ty, (I) = 3.69 inches
' Composite Runoff Coefficient, (C) => 0.67
Peak Release Rate, (QI00) 350 cfs

s:kl 319\0001 kcalcMREVPOND2.xis printed: 11291982:14 PM Page 2 of 16

Stage - St orage Function

Contour Contour Incr. Accum. Stage
Elev. Area Storage Storage (S) (Z)
(ft) (so (cf) (cf) (ft) In (S) In (Z) Z est

133.9 - - - - -
134.0 52,500 2,625 2,625 0.10 7.87 -2.30 0.10

135.0
56,565
54,533
57,157
1.10 .. ...
10.95 ......................
0.10
1.25
136.0 60,790 58,678 115,835 2.10 11.66 € 0.74 2.23
137.0 65,105 62,948 178,783 3.10 12.09 1.13 3.18
138.0 69,520 67,313 246,095 4.10 12.41 1.41 4.12
139.0 74,050 71,785 317,880 5.10 12.67 1.63 5.09
140.0 78,675 76,363 394,243 6.10 12.88 1.81 6.07
141.0 83,410 81,043 475,285 7.10 's 13.07 € 1.96 7.07
142.0 88,250 85,830 561,115 8.10 13.24 2.09 8.10
143.0 93,250 90,750 651,865 9.10 13.39 2.21 9.16
Regression Output:
b= 1.22 (X Variable Coeff)
Ks= 43,608 (ey"intercept)
Stage - Storage Equation is of the form: S = (Ks)(ZI
Primary Spillway
Barrel
Dia. of Barrel = 30 inches
Number of Barrels = 2
Area of Barrel, (Ab) = 4.91 sf
Pipe Length, (L) = 54.0 feet
Orifice Coefficient (Cd) = 0.60
Inv. of Barrel = 133.90 feet
Riser
Elev. of Riser Crest = 136.50 feet
Circular:
Dia. of Riser = 0 inches
Weir Length = - feet
Area of Riser = - sq. ft.
Rectangular:
Length of Riser = 4 feet
Width of Riser = 8 feet
Weir Length = 24 feet
Area of Riser = 32 sq.ft.
Emergency Spillway-
Width of Spillway (Approx.) = 40 feet
Weir Coefficient = 3.0
Crest Elevation = 142.5 feet
s:\1319\0001kalcsVtEVPONDZ.As printed: 1129/98 2:14 PM Page 3 of 16
?- o
1
Summar
' y
Estimated Maximum Release Rate, (Q10) = 116 cfs
Estimated Maximum Release Rate, (Q25) = 136 cfs
Estimated Maximum Release Rate, (Q100) = 166 cfs
' Normal Water Surface Elev. = 134.0 feet
Water Surface Elev. a Outlet (Q10) = 141.1 feet
' Water Surface Elev. @ Outlet (Q2S) = 142.7 feet
Water Surface Elev. @ Outlet (Q100) = 143.1 feet

1

sAI 319\0001 kaIcs\REVPONDZ.xIs printed: 1129/98 2:14 PM Page 4 of 16

Inflow Hydrograph-10-yr
Peak Inflow, (Qp) => 244 cfs
Time to Peak Calculation: CN= 81 P= 3.9 in S= 2.35 in.
Q*= 2.04 in. (depth of runoff)
Vol= 1,046,651 cf (vol. of runoff)
Time to Peak, (Tp) => 51.34 minutes
(SCS TR-55)
uLt > Q/Qp t Q
min cfs
0.00 0.000 0 0
0.06 0.008 3 2
0.12 0.033 6 8
0.18 0.074 9 18
0.23 0.129 12 31
0.29 0.196 15 48
0.35 0.274 18 67
0.41 0.359 21 88
0.47 0.449 24 110
0.53 0.541 27 132
0.58 0.631 30 154
0.64 0.717 33 175
0.70 0.795 36 194
0.76 0.864 39 211
0.82 0.921 42 225
0.88 0.963 45 235
0.93 0.990 48 242
0.99 1.000 51 244
1.05 0.993 54 243
1.11 0.970 57 237
1.17 0.931 60 228
1.23 0.878 63 215
1.29 0.816 66 199
1.34 0.756 69 185
1.40 0.701 72 171
1.46 0.650 75 159
1.52 0.602 78 147
1.58 0.558 81 136
1.64 0.517 84 126
1.69 0.479 87 117
1.75 0.444 90 109
1.81 0.412 93 101
1.87 0.382 96 93
1.93 0.354 99 86
1.99 0.328 102 80
2.05 0.304 105 74
2.10 0.282 108 69
2.16 0.261 111 64
2.22 0.242 114 59
2.28 0.224 117 55
2.34 0.208 120 51
2.40 0.193 123 47
2.45 0.179 126 44
2.51 0.166 129 40
2.57 0.153 132 38
2.63 0.142 135 35
2.69 0.132 138 32
2.75 0.122 141 30
2.80 0.113 144 28
591319\00011ca1WREVPONDZ.xts printed: 129/98 2:14 PM
Page 5 of 16

w
2.86 0.105 147 26
2.92 0.097 150 24
2.98 0.090 153 22
' 3.04 0.084 156 20
3.10 0.077 159 19
3.16 0.072 162 18
3.21 0.067 165 16
3.27 0.062 168 15
3.33 0.057 171 14
3.39 0.053 174 13
3.45 0.049 177 12
3.51 0.046 180 11
3.56 0.042 183 10
' 3.62 0.039 186 10
3.68 0.036 189 9
3.74 0.034 192 8
3.80
3.86 0.031
0.029 195
198 8
7
3.91 0.027 201 7
3.97 0.025 204 6
4.03 0.023 207 6
' 4.09 0.021 210 5
4.15 0.020 213 5
4.21 0.018 216 4
' 4.27 0.017 219 4
4.32 0.016 222 4
4.38 0.015 225 4
' 4.44
4.50 0.013
0.013 228
231 3
3
4.56 0.012 234 3
4.62 0.011 237 3
4.67 0.010 240 2
4.73 0.009 243 2
4.79 0.009 246 2
4.85 0.008 249 2
4.91 0.007 252 2
4.97 0.007 255 2
5.03 0.006 258 2
5.08 0.006 261 1
' 5.14 0.005 264 1
5.20 0.005 267 1
5.26 0.005 270 1
5.32 0.004 273 1
5.38 0.004 276 1
5.43 0.004 279 1
5.49 0.003 282 1
5.55 0.003 285 1
5.61 0.003 288 1
5.67 0.003 291 1
5.73 0.003 294 1
' 5.78 0.002 297 1
5.84 0.002 300 1

s:\7319\0001\calcs\REVPONDZ.xls printed: 1291982:14 PM Page 6 of 16
0.00 0.00 2625 0.10 0.0 0.0 0.0 0
0 0
0
3.00 2.05 2625 0.10 0.0 0.0 0.0 .
0.0 .
0.0
6.00 8.15 2995 0.11 0.0 0.0 0.0 0.0 0.0
9.00 18.07 4461 0.15 0.0 0.0 0.0 0.0 0.0
12.00 31.49 7713 0.24 0.0 0.0 0.0 0.0 0.0
15.00 47.97 13382 0.38 0.0 0.0 0.0 0.0 0.0
18.00 66.94 22017 0.57 0.0 0.0 0.0 0.0 0.0
21.00 87.76 34065 0.82 0.0 0.0 0.0 0.0 0.0
' 24.00 109.75 49862 1.12 0.0 0.0 0.0 0.0 0.0
27.00 132.15 69617 1.47 0.0 0.0 0.0 0.0 0.0
30.00 154.22 93403 1.87 0.0 0.0 0.0 0.0 0.0
33.00
36.00 175.21
194.43 121163
152701 2.31
2.79 0.0
6.6 0.0
67.2 0.0
58.7 0.0
0.0 0.0
6.6
39.00 211.21 186513 3.29 45.1 127.7 67.5 0.0 45.1
42.00 225.01 216414 3.71 92.9 162.5 74.2 0.0 74.2
45.00 235.35 243563 4.09 144.0 188.1 79.7 0.0 79.7
48.00 241.89 271587 4.47 202.7 210.8 84.8 0.0 84.8
51.00 244.41 299856 4.85 267.1 231.1 89.7 0.0 89.7
54.00
57.00 242.82
237.18 327708
354474 5.21
5.56 334.9
403.5 249.1
265.1 94.1
98.1 0.0
0.0 94.1
98.1
60.00 227.68 379500 5.88 470.6 279.1 101.7 0.0 101.7
63.00 214.63 402173 6.17 533.5 291.0 104.8 0.0 104.8
66.00 199.47 421940 6.41 589.9 300.9 107.4 0.0 107.4
69.00 184.88 438510 6.62 638.2 308.9 109.5 0.0 109.5
72.00 171.36 452072 6.79 678.4 315.3 111.2 0.0 111.2
75.00 158.82 462896 6.92 710.9 320.2 112.6 0.0 112.6
' 78.00 147.20 471224 7.02 736.2 324.0 113.6 0.0 113.6
81.00 136.44 477281 7.09 754.7 326.7 114.3 0.0 114.3
84.00 126.46 481268 7.14 767.0 328.4 114.8 0.0 114.8
87.00
90.00 117.21
108.63 483375
483771 7.17
7.17 773.4
774.7 329.3
329.5 115.0
115.1 0.0
0.0 115.0
115.1
93.00 100.69 482616 7.16 771.1 329.0 114.9 0.0 114.9
96.00 93.32 480055 7.13 763.2 327.9 114.6 0.0 114.6
99.00 86.50 476223 7.08 751.5 326.2 114.2 0.0 114.2
102.00 80.17 471244 7.02 736.3 324.0 113.6 0.0 113.6
105.00 74.30 465233 6.95 718.0 321.3 112.8 0.0 112.8
108.00 68.87 458298 6.86 697.1 318.1 112.0 0.0 112.0
111.00 63.83 450535 6.77 673.8 314.5 111.0 0.0 111.0
114.00 59.16 442038 6.66 648.6 310.6 110.0 0.0 110.0
117.00 54.83 432891 6.55 621.7 306.2 108.8 0.0 108.8
' 120.00
123.00 50.82
47.11 423173
412958 6.43
6.30 593.4
564.1 301.5
296.4 107.6
106.2 0.0
0.0 107.6
106.2
126.00 43.66 402312 6.17 533.9 291.1 104.8 0.0 104.8
129.00 40.47 391301 6.03 503.1 285.3 103.3 0.0 103.3
132.00 37.51 379982 5.89 471.9 279.3 101.8 0.0 101.8
135.00 34.76 368412 5.74 440.5 273.0 100.2 0.0 100.2
138.00 32.22 356640 5.59 409.2 266.4 98.5 0.0 98.5
141.00 29.86 344716 5.44 378.1 259.4 96.7 0.0 96
7
' 144.00 27.68 332684 5.28 347.4 252.2 94.9 0.0 .
94.9
147.00 25.65 320586 5.12 317.2 244.7 93.0 0.0 93.0
150.00 23.78 308462 4.96 287.6 236.8 91.1 0.0 91.1
153.00 22.04 296347 4.80 258.9 228.7 89.1 0.0 89.1
156.00 20.43 284276 4.64 231.0 220.2 87.1 0.0 87.1
159.00 18.93 272283 4.48 204.3 211.3 85.0 0.0 85.0
162.00 17.55 260397 4.32 178.6 202.1 82.8 0.0 82.8
' 165.00 16.26 248647 4.16 154.3 192.4 80.6 0.0 80.6
168.00 15.07 237061 4.00 131.2 182.3 78.4 0.0 78.4
171.00 13.97 225663 3.84 109.6 171.7 76.1 0.0 76.1
s:11319\00011calcs\REVPOND2.xls printed: 1/29/98 2:14 PM
Page 7 of 16
'1 1 1
Men
' 174.00 12.95 214479 3.69 89.6 160.5 73.8 0.0 73.8
177.00 12.00 203531 3.53 71.1 148.6 71.4 0.0 71.1
180.00 11.12 192893 3.38 54.4 136.0 69.0 0.0 54.4
183.00 10.31 185097 3.27 43.1 125.8 67.1 0.0 43.1
186.00 9.56 179195 3.18 35.1 117.4 65.7 0.0 35.1
189.00 8.86 174601 3.11 29.2 110.5 64.5 0.0 29.2
192.00 8.21 170941 3.06 24.8 104.6 63.6 0.0 24.8
195.00 7.61 167963 3.02 21.3 99.5 62.8 0.0 21.3
198.00 7.05 165496 2.98 18.6 95.0 62.2 0.0 18.6
201.00 6.54 163420 2.95 16.4 91.1 61.6 0.0 16.4
204.00 6.06 161647 2.92 14.6 87.6 61.2 0.0 14.6
207.00 5.62 160113 2.90 13.1 84.5 60.7 0.0 13.1
210.00 5.20 158771 2.88 11.8 81.7 60.4 0.0 11.8
213.00 4.82 157585 2.86 10.7 79.1 60.0 0.0 10.7
' 216.00 4.47 156527 2.85 9.8 76.7 59.7 0.0 9.8
219.00 4.14 155576 2.83 8.9 74.4 59.5 0.0 8.9
222.00
225.00 3.84
3.56 154715
153930 2.82
2.81 8.2
7.6 72.4
70.4 59.2
59.0 0.0
0.0 8.2
7.6
228.00 3.30 153210 2.80 7.0 68.6 58.8 0.0 7.0
231.00 3.06 152547 2.79 6.5 66.8 58.6 0.0 6.5
234.00 2.83 151935 2.78 6.0 65.2 58.5 0.0 6.0
237.00 2.63 151365 2.77 5.6 63.6 58.3 0.0 5.6
240.00 2.43 150835 2.76 5.2 62.1 58.1 0.0 5.2
243.00 2.26 150340 2.76 4.8 60.7 58.0 0.0 4.8
' 246.00 2.09 149876 2.75 4.5 59.3 57.9 0.0 4.5
249.00 1.94 149440 2.74 4.2 58.0 57.7 0.0 4.2
252.00 1.80 149030 2.74 3.9 56.7 57.6 0.0 3.9
' 255.00
258.00 1.67
1.54 148643
148278 2.73
2.72 3.7
3.5 55.5
54.3 57.5
57.4 0.0
0.0 3.7
3.5
261.00 1.43 147933 2.72 3.2 53.1 57.3 0.0 3.2
264.00 1.33 147606 2.71 3.0 52.0 57.2 0.0 3.0
267.00 1.23 147296 2.71 2.9 50.9 57.1 0.0 2.9
270.00 1.14 147002 2.70 2.7 49.9 57.0 0.0 2.7
273.00 1.06 146723 2.70 2.5 48.9 56.9 0.0 2.5
276.00 0.98 146458 2.70 2.4 47.9 56.9 0.0 2.4
279.00 0.91 146205 2.69 2.2 47.0 56.8 0.0 2.2
282.00 0.84 145965 2.69 2.1 46.0 56.7 0.0 2.1
285.00 0.78 145737 2.69 2.0 45.1 56.6 0.0 2.0
288.00 0.72 145519 2.68 1.9 44.3 56.6 0.0 1.9
' 291.00 0.67 145311 2.68 1.8 43.4 56.5 0.0 1.8
294.00 0.62 145113 2.68 1.7 42.6 56.5 0.0 1.7
297.00 0.57 144923 2.67 1.6 41.8 56.4 0.0 1.6
' 300.00 0.53 144743 2.67 1.5 41.0 56.3 0.0 1.5

s:1131910001 kalc \R EVPON DZ.xls printed: 1129/98 2:14 PM Page 8 of 16
1
1
1
1
1
1
1
1
1
1
1
1
1
thp Q/QP t Q
min cfs
0.00 0.000 0 0
0.05 0.007 3 2
0.11 0.027 6 8
0.16 0.060 9 17
0.21 0.106 12 30
0.26 0.162 15 46
0.32 0.227 18 65
0.37 0.300 21 86
0.42 0.378 24 109
0.47 0.460 27 132
0.53 0.543 30 156
0.58 0.624 33 179
0.63 0.702 36 202
0.69 0.775 39 222
0.74 0.840 42 241
0.79 0.896 45 257
0.84 0.941 48 270
0.90 0.974 51 279
0.95 0.994 54 285
1.00 1.000 57 287
1.05 0.993 60 285
1.11 0.972 63 279
1.16 0.938 66 269
1.21 0.893 69 256
1.27 0.838 72 240
1.32 0.782 75 225
1.37 0.731 78 210
1.42 0.682 81 196
1.48 0.637 84 183
1.53 0.595 87 171
1.58 0.555 90 159
1.63 0.519 93 149
1.69 0.484 96 139
1.74 0.452 99 130
1.79 0.422 102 121
1.85 0.394 105 113
1.90 0.368 108 106
1.95 0.344 111 99
2.00 0.321 114 92
2.06 0.300 117 86
2.11 0.280 120 80
2.16 0.261 123 75
2.21 0.244 126 70
2.27 0.228 129 65
2.32 0.213 132 61
2.37 0.199 135 57
2.42 0.186 138 53
2.48 0.173 141 50
2.53 0.162 144 46
s:1131910001 kalcMREVPONDZ.xls printed: 1/29198 2:14 PM
Page 9 of 16

2.58 0.151 147 43
2.64 0.141 150 40
2.69 0.132 153 38
' 2.74 0.123 156 35
2.79 0.115 159 33
2.85 0.107 162 31
2.90 0.100 165 29
2.95 0.093 168 27
3.00 0.087 171 25
3.06
3.11 0.082
0.076 174
177 23
22
3.16 0.071 180 20
3.22 0.066 183 19
3.27 0.062 186 18
3.32 0.058 189 17
3.37 0.054 192 16
3.43 0.050 195 14
3.48 0.047 198 14
3.53 0.044 201 13
3.58 0.041 204 12
3.64 0.038 207 11
3.69 0.036 210 10
3.74 0.033 213 10
3.80 0.031 216 9
3.85 0.029 219 8
3.90 0.027 222 8
3.95 0.025 225 7
4.01
4.06 0.024
0.022 228
231 7
6
4.11 0.021 234 6
4.16 0.019 237 6
4.22 0.018 240 5
4.27 0.017 243 5
4.32 0.016 246 5
4.38 0.015 249 4
4.43 0.014 252 4
4.48 0.013 255 4
4.53 0.012 258 3
4.59
4.64 0.011
0.010 261
264 3
3
4.69 0.010 267 3
4.74 0.009 270 3
4.80 0.008 273 2
4.85 0.008 276 2
4.90 0.007 279 2
4.96 0.007 282 2
' 5.01 0.006 285 2
5.06 0.006 288 2
5.11 0.006 291 2
5.17 0.005 294 2
5.22 0.005 297 1
5.27 0.005 300 1

s:\7319\00011oale \REVPONDZ.xls printed: 129/98 2:14 PM Page 10 of 16
0.00
3.00 0.00
1.96 2625
2625 0.10
0.10 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0
6.00 7.80 2978 0.11 0.0 0.0 0.0 0.0 0.0
9.00 17.35 4383 0.15 0.0 0.0 0.0 0.0 0.0
12.00 30.35 7506 0.24 0.0 0.0 0.0 0.0 0.0
15.00 46.45 12970 0.37 0.0 0.0 0.0 0.0 0.0
18.00 65.21 21332 0.56 0.0 0.0 0.0 0.0 0.0
21.00 86.11 33070 0.80 0.0 0.0 0
0 0
0 0
0
24.00 108.58 48569 1.09 0.0 0.0 .
0.0 .
0.0 .
0.0
27.00 132.00 68113 1.44 0.0 0.0 0.0 0.0 0.0
30.00 155.74 91874 1.84 0.0 0.0 0.0 0.0 0.0
33.00 179.15 119908 2.29 0.0 0.0 0.0 0.0 0.0
36.00 201.58 152155 2.78 6.2 65.8 58.5 0.0 6.2
39.00 222.42 187330 3.30 46.3 128.8 67.7 0.0 46.3
42.00 241.10 219038 3.75 97.6 165.2 74.7 0.0 74.7
45.00 257.11 248985 4.16 154.9 192.7 80.7 0.0 80.7
48.00 270.02 280740 4.59 223.1 217.6 86.4 0.0 86.4
51.00 279.46 313783 5.03 300.5 240.3 91.9 0.0 91.9
54.00 285.18 347536 5.47 385.4 261.1 97.1 0.0 97.1
' 57.00 287.02 381386 5.90 475.7 280.1 102.0 0.0 102.0
60.00 284.94 414692 6.32 569.0 297.3 106.5 0.0 106.5
63.00 278.98 446816 6.72 662.7 312.8 110.6 0.0 110.6
66.00 269.32 477129 7.09 754.2 326.6 114.3 0.0 114.3
' 69.00 256.22 505040 7.43 840.9 338.7 117.5 0.0 117.5
72.00 240.49 530005 7.73 920.3 349.0 120.3 0.0 120.3
75.00 224.56 551633 7.99 990.4 357.6 122.7 0.0 122.7
78.00 209.69 569968 8.20 1050.8 364.8 124.7 0.0 124.7
81.00 195.80 585273 8.38 1101.8 370.6 126.3 0.0 126.3
84.00 182.83 597790 8.53 1144.0 375.2 127.6 0.0 127.6
87.00 170.72 607740 8.65 1177.7 378.9 128.6 1.2 129.8
90.00 159.41 615108 8.73 1202.8 381.6 129.3 5.8 135.1
93.00 148.85 619482 8.78 1217.8 383.1 129.7 9.4 139.2
96.00 138.99 621222 8.80 1223.8 383.8 129.9 11.0 141.0
99.00 129.79 620868 8.80 1222.6 383.6 129.9 10.7 140.6
' 102.00 121.19 618924 8.78 1215.9 382.9 129.7 8.9 138.6
105.00 113.16 615784 8.74 1205.2 381.8 129.4 6.3 135.7
108.00 105.67 611727 8.69 1191.3 380.3 129
0 3
4 132
4
111.00 98.67 606916 8.64 1174.9 378.6 .
128.5 .
0.9 .
129.4
114.00 92.13 601393 8.57 1156.2 376.6 127.9 0.0 127.9
117.00 86.03 594952 8.50 1134.4 374.2 127.3 0.0 127.3
120.00 80.33 587530 8.41 1109.4 371.4 126.5 0.0 126.5
123.00 75.01 579221 8.31 1081.6 368.3 125.6 0.0 125.6
126.00 70.04 570109 8.21 1051.3 364.8 124.7 0.0 124.7
129.00 65.40 560276 8.09 1018.8 361.0 123.6 0.0 123.6
132.00 61.07 549795 7.97 984.4 356.9 122.5 0.0 122.5
135.00 57.03 538738 7.83 948.5 352.5 121.3 0.0 121.3
138.00 53.25 527169 7.70 911.2 347.8 120.0 0.0 120.0
141.00
144.00 49.72
46.43 515150
502739 7.55
7.40 872.9
833.7 342.9
337.7 118.7
117.3 0.0
0.0 118.7
117.3
147.00 43.35 489990 7.25 793.9 332.2 115.8 0.0 115.8
150.00 40.48 476953 7.09 753.7 326.5 114.2 0.0 114.2
153.00 37.80 463676 6.93 713.3 320.6 112.6 0.0 112.6
156.00 35.30 450204 6.76 672.8 314.4 111.0 0.0 111.0
159.00 32.96 436578 6.60 632.5 308.0 109.3 0.0 109.3
162.00 30.78 422839 6.42 592.5 301.3 107.5 0.0 107
5
' 165.00 28.74 409022 6.25 552.8 294.5 105.7 0.0 .
105.7
168.00 26.83 395164 6.08 513.8 287.4 103.9 0.0 103.9
171.00 25.06 381297 5.90 475.5 280.0 102.0 0.0 102.0
' s:\7319\0001\calcs\REVPONDZ.)ds printed: 1/291982:14 PM
Page 11 of 16
Of 1 1 .
a
u=
,,>
174.00 23.40 367453 5.73 438.0 272.5 100.0 0.0 100.0
177.00 21.85 353660 5.55 401.4 264.7 98.0 0.0 98.0
180.00 20.40 339948 5.37 365.9 256.6 96.0 0.0 96.0
183.00 19.05 326341 5.20 331.4 248.3 93.9 0.0 93.9
186.00 17.79 312866 5.02 298.3 239.7 91.8 0.0 91.8
189.00 16.61 299545 4.84 266.4 230.9 89.6 0.0 89.6
192.00 15.51 286402 4.67 235.9 221.7 87.4 0.0 87.4
195.00 14.48 273458 4.50 206.9 212.2 85.2 0.0 85.2
198.00 13.52 260734 4.32 179.3 202.3 82.9 0.0 82.9
201.00 12.63 248248 4.15 153.4 192.1 80.6 0.0 80.6
204.00 11.79 236021 3.99 129.2 181.4 78.2 0.0 78.2
207.00 11.01 224069 3.82 106.7 170.2 75.8 0.0 75.8
210.00 10.28 212411 3.66 86.0 158.4 73.3 0.0 73.3
213.00 9.60 201063 3.50 67.1 145.8 70.8 0.0 67.1
' 216.00 8.96 190709 3.35 51.2 133.2 68.5 0.0 51.2
219.00 8.37 183110 3.24 40.3 123.1 66.6 0.0 40.3
222.00 7.82 177355 3.15 32.7 114.7 65
2 0
0 32
7
225.00 7.30 172879 3.09 27.1 107.7 .
64.1 .
0.0 .
27.1
228.00 6.81 169319 3.04 22.9 101.8 63.2 0.0 22.9
231.00 6.36 166431 2.99 19.6 96.7 62.4 0.0 19.6
234.00 5.94 164047 2.96 17.0 92.3 61.8 0.0 17.0
' 237.00 5.55 162049 2.93 15.0 88.5 61.3 0.0 15.0
240.00 5.18 160351 2.90 13.3 85.0 60.8 0.0 13.3
243.00 4.84 158889 2.88 11.9 81.9 60.4 0.0 11.9
246.00 4.52 157617 2.86 10.7 79.1 60.1 0.0 10.7
249.00 4.22 156499 2.85 9.7 76.6 59.7 0.0 9.7
252.00 3.94 155507 2.83 8.9 74.3 59.5 0.0 8.9
' 255.00
258.00 3.68
3.43 154619
153819 2.82
2.81 8.1
7.5 72.1
70.1 59.2
59.0 0.0
0.0 8.1
7.5
261.00 3.21 153093 2.80 6.9 68.3 58.8 0.0 6.9
264.00 2.99 152430 2.79 6.4 66.5 58.6 0.0 6.4
267.00 2.80 151822 2.78 5.9 64.9 58.4 0.0 5.9
' 270.00 2.61 151261 2.77 5.5 63.3 58.3 0.0 5.5
273.00 2.44 150742 2.76 5.1 61.8 58.1 0.0 5.1
276.00 2.28 150259 2.75 4.8 60.4 58.0 0.0 4.8
279.00 2.13 149809 2.75 4.5 59.1 57.8 0.0 4.5
282.00 1.98 149387 2.74 4.2 57.8 57.7 0.0 4.2
285.00 1.85 148991 2.73 3.9 56.6 57.6 0.0 3.9
' 288.00
291.00 1.73
1.62 148619
148269 2.73
2.72 3.7
3.5 55.4
54.2 57.5
57.4 0.0
0.0 3.7
3.5
294.00 1.51 147938 2.72 3.2 53.1 57.3 0.0 3.2
297.00 1.41 147624 2.71 3.1 52.1 57.2 0.0 3.1
300.00 1.32 147328 2.71 2.9 51.0 57.1 0.0 2.9

1 s \1319\0001\csl a\REVPONDZ.xls printed: 1/29/98 2:14 PM Page 12 of 16
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Of) Q/QP t Q
(min) cfs)
0.00 0.000 0 0
0.05 0.010 3 4
0.11 0.040 6 14
0.16 0.089 9 31
0.21 0.154 12 54
0.26 0.234 15 82
0.32 0.324 18 113
0.37 0.421 21 147
0.42 0.522 24 182
0.47 0.621 27 217
0.53 0.716 30 250
0.58 0.802 33 280
0.63 0.876 36 306
0.69 0.934 39 327
0.74 0.975 42 341
0.79 0.997 45 348
0.84 0.998 48 349
0.90 0.979 51 342
0.95 0.941 54 329
1.00 0.885 57 309
1.05 0.817 60 286
1.11 0.752 63 263
1.16 0.692 66 242
1.21 0.636 69 222
1.27 0.585 72 205
1.32 0.538 75 188
1.37 0.495 78 173
1.42 0.456 81 159
1.48 0.419 84 147
1.53 0.386 87 135
1.58 0.355 90 124
1.63 0.326 93 114
1.69 0.300 96 105
1.74 0.276 99 97
1.79 0.254 102 89
1.85 0.234 105 82
1.90 0.215 108 75
1.95 0.198 111 69
2.00 0.182 114 64
2.06 0.167 117 58
2.11 0.154 120 54
2.16 0.142 123 49
2.21 0.130 126 46
2.27 0.120 129 42
2.32 0.110 132 39
2.37 0.101 135 35
2.42 0.093 138 33
2.48 0.086 141 30
2.53 0.079 144 28
511319\00011cala\REVPONDZ.xIs printed: 1129/98 2:14 PM
Page 13 of 16

1

1

2.58 0.073 147 25
2.64 0.067 150 23
2.69 0.061 153 21
2.74 0.057 156 20
2.79 0.052 159 18
2.85 0.048 162 17
2.90 0.044 165 15
2.95 0.040 168 14
3.00 0.037 171 13
3.06 0.034 174 12
3.11 0.032 177 it
3.16 0.029 180 10
3.22 0.027 183 9
3.27 0.025 186 9
3.32 0.023 189 8
3.37 0.021 192 7
3.43 0.019 195 7
3.48 0.018 198 6
3.53 0.016 201 6
3.58 0.015 204 5
3.64 0.014 207 5
3.69 0.013 210 4
3.74 0.012 213 4
3.80 0.011 216 4
3.85 0.010 219 3
3.90 0.009 222 3
3.95 0.008 225 3
4.01 0.008 228 3
4.06 0.007 231 2
4.11 0.006 234 2
4.16 0.006 237 2
4.22 0.005 240 2
4.27 0.005 243 2
4.32 0.005 246 2
4.38 0.004 249 1
4.43 0.004 252 1
4.48 0.004 255 1
4.53 0.003 258 1
4.59 0.003 261 1
4.64 0.003 264 1
4.69 0.003 267 1
4.74 0.002 270 1
4.80 0.002 273 1
4.85 0.002 276 1
4.90 0.002 279 1
4.96 0.002 282 1
5.01 0.002 285 1
5.06 0.001 288 1
5.11 0.001 291 0
5.17 0.001 294 0
5.22 0.001 297 0
5.27 0.001 300 0
s:\131910001 kalcslREVPONDZ.XIs printed: 129/98 2:14 PM Page 14 Of 16
1 41

MEMEMMM=
lStorm Rou ting Table 1 00-yr
WEIR ORIFICE EMERGENCY TOTAL
TIME INFLOW STORAGE STAGE RISER RISER BARREL PILLWAY UTFLOW
min (cfs) (co (ft) cfs cfs cfs (cfs cfs
0.00, 0.00 2625 0.10 0.0 0.0 0.0 0.0 0.0
3.00 3.55 2625 0.10 0.0 0.0 0.0 0.0 0.0
6.00 14.04 3263 0.12 0.0 0.0 0.0 0.0 0.0
9.00 31.06 5791 0.19 0.0 0.0 0.0 0.0 0.0
12.00 53.91 11381 0.33 0.0 0.0 0.0 0.0 0.0
15.00 81.66 21084 0.55 0.0 0.0 0.0 0.0 0.0
18.00 113.19 35782 0.85 0.0 0.0 0.0 0.0 0.0
21.00 147.23 56157 1.23 0.0 0.0 0.0 0.0 0.0
24.00 182.38 82658 1.69 0.0 0.0 0.0 0.0 0.0
27.00 217.23 115486 2.22 0.0 0.0 0.0 0.0 0.0
30.00 250.35 154587 2.82 8.1 72.0 59.2 0.0 8.1
33.00 280.42 198194 3.45 62.6 142.4 70.2 0.0 62.6
36.00 306.20 237405 4.00 131.9 182.6 78.5 0.0 78.5
39.00 326.65 278398 4.56 217.8 215.9 86.0 0.0 86.0
42.00 340.94 321707 5.14 319.9 245.4 93.2 0.0 93.2
45.00 348.49 366302 5.71 434.9 271.8 99.9 0.0 99.9
48.00 349.00 411056 6.28 558.6 295.5 106.0 0.0 106.0
51.00 342.44 454797 6.82 686.6 316.5 111.6 0.0 111.6
•54.00 329.09 496355 7.33 813.7 335.0 116.5 0.0 116.5
57.00 309.47 534617 7.79 935.2 350.9 120.8 0.0 120.8
60.00 285.75 568570 8.19 1046.2 364.2 124.5 0.0 124.5
63.00 262.86 597592 8.53 1143.3 375.2 127.5 0.0 127.5
66.00 241.81 621951 8.81 1226.3 384.0 130.0 11.7 141.7
69.00 222.44 639966 9.02 1288.5 390.4 131.8 32.7 164.5
72.00 204.62 650392 9.14 1324.9 394.1 132.8 47.7 180.5
75.00 188.23 654730 9.19 1340.1 395.6 133.2 54.5 187.7
78.00 173.16 654828 9.19 1340.4 395.6 133.2 54.6 187.9
81.00 159.29 652181 9.16 1331.1 394.7 133.0 50.5 183.4
84.00 146.53 647833 9.11 1315.9 393.2 132.5 43.9 176.4
87.00 134.79 642452 9.05 1297.2 391.3 132.0 36.1 168.2
90.00 124.00 636445 8.98 1276.3 389.2 131.4 28.1 159.5
93.00 114.07 630047 8.91 1254.2 386.9 130.8 20.3 151.1
96.00 104.93 623378 8.83 1231.2 384.5 130.1 13.1 143.3
99.00 96.52 616477 8.75 1207.5 382.1 129.4 6.9 136.3
102.00 88.79 609313 8.67 1183.1 379.5 128.7 2.0 130.7
105.00 81.68 601765 8.58 1157.4 376.7 128.0 0.0 128.0
108.00 75.14 593435 8.48 1129.3 373.6 127.1 0.0 127.1
111.00 69.12 584081 8.37 1097.8 370.1 126.1 0.0 126.1
114.00 63.58 573818 8.25 1063.6 366.2 125.1 0.0 125.1
117.00 58.49 562751 8.12 1026.9 362.0 123.9 0.0 123.9
120.00 53.81 550979 7.98 988.3 357.4 122.6 0.0 122.6
123.00 49.50 538591 7.83 948.0 352.5 121.3 0.0 121.3
126.00 45.53 525669 7.68 906.4 347.2 119.9 0.0 119.9
129.00 41.89 512292 7.52 863.8 341.7 118.3 0.0 118.3
132.00 38.53 498528 7.35 820.5 335.9 116.8 0.0 116.8
135.00 35.44 484445 7.18 776.7 329.8 115.1 0.0 115.1
138.00 32.61 470102 7.01 732.8 323.5 113.4 0.0 113.4
141.00 29.99 455554 6.83 688.8 316.9 111.7 0.0 111.7
144.00 27.59 440855 6.65 645.1 310.0 109.8 0.0 109.8
147.00 25.38 426053 6.46 601.8 302.9 107.9 0.0 107.9
150.00 23.35 411191 6.28 559.0 295.6 106.0 0.0 106.0
153.00 21.48 396311 6.09 517.0 288.0 104.0 0.0 104.0
156.00 19.76 381452 5.91 475.9 280.1 102.0 0.0 102.0
159.00 18.18 366650 5.72 435.8 272.0 99.9 0.0 99.9
162.00 16.72 351938 5.53 396.9 263.7 97.8 0.0 97.8
165.00 15.38 337348 5.34 359.2 255.0 95.6 0.0 95.6
168.00 14.15 322909 5.15 322.9 246.1 93.4 0.0 93.4
171.00 13.02 308648 4.97 288.1 237.0 91.1 0.0 91.1
s11319\00011calw\REVPONDZ.xIs printed: 1/29198 2:14 PM Page 15 of 16

1

1

174.00 11.97 294590 4.78 254.8 227.4 88.8 0.0 88.8
177.00 11.01 280761 4.59 223.1 217.6 86.5 0.0 86.5
180.00 10.13 267182 4.41 193.2 207.4 84.1 0.0 84.1
183.00 9.32 253876 4.23 165.0 196.8 81.6 0.0 81.6
186.00 8.57 240863 4.05 138.7 185.7 79.1 0.0 79.1
189.00 7.89 228161 3.88 114.3 174.1 76.6 0.0 76.6
192.00 7.26 215790 3.70 91.9 161.9 74.0 0.0 74.0
195.00 6.67 203768 3.53 71.5 148.9 71.4 0.0 71.4
198.00 6.14 192110 3.37 53.3 135.0 68.8 0.0 53.3
201.00 5.65 183628 3.25 41.1 123.8 66.8 0.0 41.1
204.00 5.20 177255 3.15 32.6 114.6 65.2 0.0 32.6
207.00 4.78 172331 3.08 26.4 106.8 64.0 0.0 26.4
210.00 4.40 168437 3.02 21.8 100.3 63.0 0.0 21.8
213.00 4.04 165295 2.98 18.4 94.7 62.1 0.0 18.4
216.00 3.72 162717 2.94 15.7 89.8 61.4 0.0 15.7
219.00 3.42 160567 2.91 13.5 85.5 60.9 0.0 13.5
222.00 3.15 158751 2.88 11.8 81.6 60.4 0.0 11.8
225.00 2.90 157198 2.86 10.4 78.2 59.9 0.0 10.4
228.00 2.66 155856 2.84 9.2 75.1 59.6 0.0 9.2
231.00 2.45 154685 2.82 8.2 72.3 59.2 0.0 8.2
234.00 2.25 153654 2.80 7.3 69.7 58.9 0.0 7.3
237.00 2.07 152740 2.79 6.6 67.3 58.7 0.0 6.6
240.00 1.91 151923 2.78 6.0 65.2 58.4 0.0 6.0
243.00 1.76 151189 2.77 5.4 63.1 58.2 0.0 5.4
246.00 1.61 150525 2.76 5.0 61.2 58.0 0.0 5.0
249.00 1.49 149922 2.75 4.5 59.4 57.9 0.0 4.5
252.00 1.37 149371 2.74 4.2 57.8 57.7 0.0 4.2
255.00 1.26 148866 2.73 3.8 56.2 57.6 0.0 3.8
258.00 1.16 148401 2.73 3.5 54.7 57.4 0.0 3.5
261.00 1.06 147972 2.72 3.3 53.3 57.3 0.0 3.3
264.00 0.98 147575 2.71 3.0 51.9 57.2 0.0 3.0
267.00 0.90 147206 2.71 2.8 50.6 57.1 0.0 2.8
270.00 0.83 146863 2.70 2.6 49.4 57.0 0.0 2.6
273.00 0.76 146542 2.70 2.4 48.2 56.9 0.0 2.4
276.00 0.70 146242 2.69 2.3 47.1 56.8 0.0 2.3
279.00 0.64 145961 2.69 2.1 46.0 56.7 0.0 2.1
282.00 0.59 145698 2.69 2.0 45.0 56.6 0.0 2.0
285.00 0.55 145450 2.68 1.8 44.0 56.6 0.0 1.8
288.00 0.50 145216 2.68 1.7 43.0 56.5 0.0 1.7
291.00 0.46 144997 2.67 1.6 42.1 56.4- 0.0 1.6
294.00 0.42 144789 2.67 1.5 41.2 56.4 0.0 1.5
297.00 0.39 144593 2.67 1.4 40.3 56.3 0.0 1.4
300.00 0.36 144408 2.67 1.3 39.5 56.2 0.0 1.3
s:\1319\0001\calcs\REVPONDZ.xls printed: 1/29/98 2:14 PM Page 16 Of 16

Inflow / Outflow Hydrograph
Factory Stores Pond
10-yr Storm Event
260
240
220
200
180
160
140
o-,
120
100
80
60
40
20-
0
0
-? INFLOW
I -?- OUTFLOW
30 60 90 120 150 180 210 240 270 300
Time (min)

Inflow / Outflow Hydrograph
Factory Stores Pond
25-yr Storm Event
300
280
260
240
220
200
180
U)
160
= 140
U
0
120
100
80
60
40
20
0
0
-?-INFLOW
-? OUTFLOW;
30 60 90 120 150 180 210 240 270 300
Time (min)

Inflow / Outflow Hydrograph
Factory Stores Pond
100-yr Storm Event
360
340
320
300
280
260
240
220
200
o' 180
i
160
L
140
120
100
80
60
40
20
0
0
INFLOW
-?- OUTFLOW
i
30 60 90 120 150 180 210 240 270 300
Time (min)

POND ROUTING
t SUPPLEMENTAL CALCULATIONS

CALCULATION 1319-
PROJECT PO NO a M TI r 6 PROJ. NO. OooI. C"-
CLIENT t ? RT Fg S FOUI T Y 6(,7OU P DATE ? - Z IL yg
SUBJECT S U PP(E MCN r iI? C A c S• DES. BY M b 2
CHK. BY hlPS
REMARKS
SUPFACE A2EA - pEf'Trf (ZCL?r??NSNI?
-T O -` A (, A P F,4 o A(
6/1 1mr;LPICA)i - 75
} ?ERMANEat POOL DieprN r
3.O' 4.0 5.0'
SA JDA @ 75 / 2175 7.7-7 I.96
SURFACE OeA (Ac•) I,27 ?oo4 0<90
(zEQUI 2ED STc>RA GE
(?? = 0.0 5 F a nC) I (L)

VOL (7
2.?8 A(-FT
= ?Z1,06o FT a .•
STofRMWATER BMP'S , NC Ff ijr42 f4m, 1995
A
q<T\4&CREM

CALCULATION 1319 _
PROJECT FOOD V bUTI N (7 PROD. NO. 0001.02
CLIENT- n rA2rNEf'zS F6WITY 620UP DATE 10-7( -97
SUBJECT SUPPLEM?NT?C C?ICC S. DES. BY My'??-
CHK. BY ? n S
REMARKS
LoM inns i rrr 2 cJr ?F CnE-FFr C ? ??? CEs-??M?TE C? F?? ?ARTNE?S ? Q?I?r ???..T
?SStJM ?/FNS ?AsPfi q cT ?vMr ? c?. ? 5
(Zoo` ?(' _ ? .? s
6fz?S CPE?v?o? S? = Olt 9
CnVf (Z G % MEA C (% AAA)
PV/'07 20OF 0.9 1? -7 s % 0, 7 (Z S
C2ASs o.rs ZS 0 p3-7 5
oM poS l T-F, I C7o %. Q. "7 5
CC ' 0.-75- F-c7tz -7e?'/ I M PE2 0 0US A 2 FA.
,00
MN11<11\4&CREM

CALCULATION 13J 9 ,
PROJECT M012 F001106 PROJ. NO. 9001. 02
CLIENT ??gPTl1lE(?S EOOLLY 6(?OUP DATE ID-21 -q7
SUBJECT -.-S?OPP,ENI MA L OCC S . DES. BY ft"
CHK. BY Af-,'-S
REMARKS
I?Udp rr Tp E x IS-T' PONn
RUNOFF CQE F? .
S ITE P- A
gr?p(LY 2 ? C7.9 O a
? ?
S .
w-rUl0r
Pq(2 1uti61 15
POND
NURSfr2\( 9 5 I (? q 6?
Hu&Hs
WA CT
PA2wK S
F-QU I T.Y
4
a I S
O. ?5
Fs t E
O-ly
?4 c 14?, s 0,30 0.67
r
1VfKIM