For inspection purposes only. Consent of copyright owner required ...
For inspection purposes only. Consent of copyright owner required ... For inspection purposes only. Consent of copyright owner required ...
Total PRELIMINARY - SURFACE WATER STORAGE CALCULATIONS FOR Proposed Landfill Development Capped Cells - Naul - 30 Year Throttle Storm Return Period = Maximum Storage Required = 30 Year 7,409 m³ Rainfall Data as Recorded by Met Eireann in FSU - OPW Allowable Discharge = 4.17 l/s/ha 96 l/s Proposed Impermeable Areas Gross Unit Impermeability Nett Capping Area 25.500 ha @ 90% 22.950 Duration Rainfall Intensity Rainfall Proposed Imperm. Area Proposed Run-off Storage Required (min) (mm) (mm/hr) (m³/ha) (ha) (m³) (m³) (m³) 15 14.6 58.40 146 22.95 3351 86.156136 3264.5 30 18.2 36.40 182 22.95 4177 172.312272 4004.6 60 22.7 22.70 227 22.95 5210 344.624544 4865.0 120 28.3 14.15 283 22.95 6495 689.249088 5805.6 180 32.2 10.73 322 22.95 7390 1033.87363 6356.0 240 35.3 8.83 353 22.95 8101 1378.49818 6722.9 360 40.2 6.70 402 22.95 9226 2067.74726 7158.2 540 45.8 5.09 458 22.95 10511 3101.6209 7409.5 720 50.2 4.18 502 22.95 11521 4135.49453 7385.4 1080 57.1 3.17 571 22.95 13104 6203.24179 6901.2 1440 62.8 2.62 628 22.95 14413 8270.98906 6141.6 2880 74.4 1.55 744 22.95 17075 16541.9781 532.8 4320 83.8 1.16 838 22.95 19232 24812.9672 -5580.9 5760 92.1 0.96 921 22.95 21137 33083.9562 -11947.0 8640 106.6 0.74 1066 22.95 24465 49625.9343 -25161.2 11520 119.3 0.62 1193 22.95 27379 66167.9124 -38788.6 14400 130.9 0.55 1309 22.95 30042 82709.8906 -52668.3 17280 141.7 0.49 1417 22.95 32520 99251.8687 -66731.7 23040 161.6 0.42 1616 22.95 37087 132335.825 -95248.6 28800 180 0.38 1800 22.95 41310 165419.781 -124109.8 36000 201.3 0.34 2013 22.95 46198 206774.726 -160576.4 For inspection purposes only. Consent of copyright owner required for any other use. Storage Required = Outflow 7,409 m³ 22.950 EPA Export 24-08-2012:23:55:52
Total PRELIMINARY - SURFACE WATER STORAGE CALCULATIONS FOR Proposed Landfill Development Capped Cells - Naul - 100 Year Throttle Storm Return Period = Maximum Storage Required = 100 Year incl. 10%CC 9,131 m³ Rainfall Data as Recorded by Met Eireann in FSU - OPW Allowable Discharge = 5.34 l/s/ha 123 l/s Proposed Impermeable Areas Gross Unit Estimated Runoff Nett Capping Area Duration Rainfall Intensity Rainfall 25.500 ha @ 90% 22.950 Proposed Imperm. Area Proposed Run-off Storage Required (min) (mm) (mm/hr) (m³/ha) (ha) (m³) (m³) (m³) 15 19.6 784.00 196 22.95 4498 110.367101 4387.8 30 24.1 482.00 241 22.95 5531 220.734202 5310.2 60 29.6 296.00 296 22.95 6793 441.468403 6351.7 120 36.4 182.00 364 22.95 8354 882.936806 7470.9 180 41.1 137.00 411 22.95 9432 1324.40521 8108.0 240 44.8 112.00 448 22.95 10282 1765.87361 8515.7 360 50.5 84.17 505 22.95 11590 2648.81042 8940.9 540 57.1 63.44 571 22.95 13104 3973.21563 9131.2 720 62.2 51.83 622 22.95 14275 5297.62084 8977.3 1080 70.2 39.00 702 22.95 16111 7946.43126 8164.5 1440 76.8 32.00 768 22.95 17626 10595.2417 7030.4 2880 90.2 18.79 902 22.95 20701 21190.4834 -489.6 4320 101.3 14.07 1013 22.95 23248 31785.725 -8537.4 5760 111 11.56 1110 22.95 25475 42380.9667 -16906.5 8640 127.9 8.88 1279 22.95 29353 63571.4501 -34218.4 11520 142.8 7.44 1428 22.95 32773 84761.9334 -51989.3 14400 156.4 6.52 1564 22.95 35894 105952.417 -70058.6 17280 169 5.87 1690 22.95 38786 127142.9 -88357.4 23040 192.3 5.01 1923 22.95 44133 169523.867 -125391.0 28800 213.6 4.45 2136 22.95 49021 211904.834 -162883.6 36000 238.4 3.97 2384 22.95 54713 264881.042 -210168.2 For inspection purposes only. Consent of copyright owner required for any other use. Storage Required = Outflow 9,131 m³ 22.950 EPA Export 24-08-2012:23:55:52
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- Page 27 and 28: Contents 3 Introduction 6 Factors a
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Total<br />
PRELIMINARY - SURFACE WATER STORAGE CALCULATIONS FOR<br />
Proposed Landfill Development Capped Cells - Naul - 100 Year Throttle<br />
Storm Return Period =<br />
Maximum Storage Required =<br />
100 Year incl. 10%CC<br />
9,131 m³<br />
Rainfall Data as Recorded by Met Eireann in FSU - OPW<br />
Allowable Discharge =<br />
5.34 l/s/ha 123 l/s<br />
Proposed Impermeable Areas Gross Unit Estimated Run<strong>of</strong>f Nett<br />
Capping Area<br />
Duration Rainfall Intensity Rainfall<br />
25.500 ha @ 90% 22.950<br />
Proposed<br />
Imperm.<br />
Area<br />
Proposed<br />
Run-<strong>of</strong>f<br />
Storage<br />
Required<br />
(min) (mm) (mm/hr) (m³/ha) (ha) (m³) (m³) (m³)<br />
15 19.6 784.00 196 22.95 4498 110.367101 4387.8<br />
30 24.1 482.00 241 22.95 5531 220.734202 5310.2<br />
60 29.6 296.00 296 22.95 6793 441.468403 6351.7<br />
120 36.4 182.00 364 22.95 8354 882.936806 7470.9<br />
180 41.1 137.00 411 22.95 9432 1324.40521 8108.0<br />
240 44.8 112.00 448 22.95 10282 1765.87361 8515.7<br />
360 50.5 84.17 505 22.95 11590 2648.81042 8940.9<br />
540 57.1 63.44 571 22.95 13104 3973.21563 9131.2<br />
720 62.2 51.83 622 22.95 14275 5297.62084 8977.3<br />
1080 70.2 39.00 702 22.95 16111 7946.43126 8164.5<br />
1440 76.8 32.00 768 22.95 17626 10595.2417 7030.4<br />
2880 90.2 18.79 902 22.95 20701 21190.4834 -489.6<br />
4320 101.3 14.07 1013 22.95 23248 31785.725 -8537.4<br />
5760 111 11.56 1110 22.95 25475 42380.9667 -16906.5<br />
8640 127.9 8.88 1279 22.95 29353 63571.4501 -34218.4<br />
11520 142.8 7.44 1428 22.95 32773 84761.9334 -51989.3<br />
14400 156.4 6.52 1564 22.95 35894 105952.417 -70058.6<br />
17280 169 5.87 1690 22.95 38786 127142.9 -88357.4<br />
23040 192.3 5.01 1923 22.95 44133 169523.867 -125391.0<br />
28800 213.6 4.45 2136 22.95 49021 211904.834 -162883.6<br />
36000 238.4 3.97 2384 22.95 54713 264881.042 -210168.2<br />
<strong>For</strong> <strong>inspection</strong> <strong>purposes</strong> <strong>only</strong>.<br />
<strong>Consent</strong> <strong>of</strong> <strong>copyright</strong> <strong>owner</strong> <strong>required</strong> for any other use.<br />
Storage Required =<br />
Outflow<br />
9,131 m³<br />
22.950<br />
EPA Export 24-08-2012:23:55:52
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