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Request to Amend Application and Response to DSDIP's Information Request · MCU14/0009
Attached to the e-mail MCU14/0009 information response and request to amend application.
RATIONAL METHOD SUMMARY & RAINFALL DATA
Project 1 Factory St, Pomona
Project #
Rainfall IFD Input Data (Australian Rainfall and Runoff)
2 2 2 50 50 50
I1 I12 I72 I1 I12 I72 F2 F50 G
47.98 10.23 3.38 88.59 21.13 7.61 4.39 17.57 0.15
Rainfall Intensity (mm/hr)
DURATION AVERAGE RECURRENCE INTERVAL (years)
(hours) (minutes) 1 yr 2 yr 5 yr 10 yr 20 yr 50 yr 100 yr
0.083 5 118 151 189 212 242 283 315
0.1 6 111 142 178 199 228 266 296
0.167 10 91 116 146 164 187 219 244
0.25 15 76 97 123 137 158 184 205
0.333 20 66 85 107 120 138 161 180
0.417 25 59 76 96 108 124 145 161
0.5 30 54 69 87 98 113 132 147
0.75 45 43.5 56 70 79 91 107 119
1 60 37.1 47.6 60 68 78 91 102
1.5 90 28.9 37.2 47.3 53 62 73 81
2 120 24.1 31.1 39.8 45.1 52 62 69
3 180 18.7 24.2 31.1 35.4 41.1 48.7 55
4.5 270 14.4 18.7 24.3 27.8 32.3 38.5 43.3
6 360 12.0 15.6 20.4 23.4 27.3 32.6 36.7
9 540 9.29 12.1 16.0 18.3 21.5 25.8 29.1
12 720 7.75 10.1 13.4 15.5 18.2 21.8 24.7
18 1080 6.10 8.00 10.7 12.4 14.6 17.6 20.0
24 1440 5.14 6.76 9.06 10.5 12.4 15.1 17.1
30 1800 4.49 5.91 7.96 9.27 11.0 13.3 15.2
36 2160 4.01 5.28 7.14 8.33 9.88 12.0 13.7
48 2880 3.34 4.40 5.99 7.01 8.34 10.2 11.6
72 4320 2.52 3.34 4.59 5.39 6.44 7.89 9.06
Catchment Data
Details: Existing
Variable Value Units
Area: 0.164 ha
C10 0.82 fraction
Rational Method Summary
Adopted Time of Concentration (tc) 6.00 Minutes (or 0.10 hours)
AVERAGE RECURRENCE INTERVAL (years)
Variable 1 yr 2 yr 5 yr 10 yr 20 yr 50 yr 100 yr
Freq Factor 0.80 0.85 0.95 1.00 1.05 1.15 1.20
Intensity (mm/hr) 110.83 141.79 177.69 198.87 227.82 266.22 295.86
Discharge (m3/s) 0.033 0.045 0.063 0.074 0.089 0.114 0.133
C:\Users\Brendon\Documents\WORK\02 Projects\47 Pomona Service Station\Design\Hydrology\Rational_Method_Pomona 10/15/2014
[OCR of page images]
RATIONAL METHOD SUMMARY & RAINFALL DATA
Project
Project #
Rainfall IFD Input Data (Australian Rainfall and Runoff;
1 Factory St, Pomona
71, "ly "Ly 1 hy Ly F2 F50 G
47.98 10.23 3.38 88.59 21.13 7.61 4.39 17.57 0.15
Rainfall Intensity (mm/hr)
DURATION AVERAGE RECURRENCE INTERVAL (years)
(hours) | (minutes) 1 yr 2yr 5 yr 10 yr 20 yr 50 yr 100 yr
0.083 5 118 151 189 212 242 283 315
0.1 6 111 142 178 199 228 266 296
0.167 10 91 116 146 164 187 219 244
0.25 15 76 97 123 137 158 184 205
0.333 20 66 85 107 120 138 161 180
0.417 25 59 76 96 108 124 145 161
0.5 30 54 69 87 98 113 132 147
0.75 45 43.5 56 70 79 91 107 119
1 60 37.1 47.6 60 68 78 91 102
1.5 90 28.9 37.2 47.3 53 62 73 81
2 120 24.1 31.1 39.8 45.1 52 62 69
3 180 18.7 24.2 31.1 35.4 41.1 48.7 55
45 270 14.4 18.7 24.3 27.8 32.3 38.5 43.3
6 360 12.0 15.6 20.4 23.4 27.3 32.6 36.7
9 540 9.29 12.1 16.0 18.3 21.5 25.8 29.1
12 720 7.75 10.1 13.4 15.5 18.2 21.8 24.7
18 1080 6.10 8.00 10.7 12.4 14.6 17.6 20.0
24 1440 5.14 6.76 9.06 10.5 12.4 15.1 17.1
30 1800 4.49 5.91 7.96 9.27 11.0 13.3 15.2
36 2160 4.01 5.28 7.14 8.33 9.88 12.0 13.7
48 2880 3.34 4.40 5.99 7.01 8.34 10.2 11.6
72 4320 2.52 3.34 4.59 5.39 6.44 7.89 9.06
Catchment Data
Details: Existing
Variable Value Units
Area: 0.164 ha
Cio 0.82 fraction
Rational Method Summary
Adopted Time of Concentration (tc) __ 6.00 _ Minutes (or 0.10 hours)
AVERAGE RECURRENCE INTERVAL (years)
Variable T yr 2 yr 5 yr 10 yr 20 yr 50 yr 100 yr
Freq Factor 0.80 0.85 0.95 1.00 1.05 1.15 1.20
Intensity (mm/hr) 110.83 141.79 177.69 198.87 | 227.82 266.22 295.86
Discharge (m/s) 0.033 0.045 0.063 0.074 0.089 0.114 0.133
C:\Users\Brendon\Documents\WORK\02 Projects\47 Pomona Service Station\Design\Hydrology\Rational_Method_Pomona
10/15/2014
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