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 ...
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Total<br />
PRELIMINARY - SURFACE WATER STORAGE CALCULATIONS FOR<br />
Proposed Landfill Development Capped Cells - Naul - 30 Year Throttle<br />
Storm Return Period =<br />
Maximum Storage Required =<br />
30 Year<br />
7,409 m³<br />
Rainfall Data as Recorded by Met Eireann in FSU - OPW<br />
Allowable Discharge =<br />
4.17 l/s/ha 96 l/s<br />
Proposed Impermeable Areas Gross Unit Impermeability Nett<br />
Capping Area 25.500 ha @ 90% 22.950<br />
Duration Rainfall Intensity Rainfall<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 14.6 58.40 146 22.95 3351 86.156136 3264.5<br />
30 18.2 36.40 182 22.95 4177 172.312272 4004.6<br />
60 22.7 22.70 227 22.95 5210 344.624544 4865.0<br />
120 28.3 14.15 283 22.95 6495 689.249088 5805.6<br />
180 32.2 10.73 322 22.95 7390 1033.87363 6356.0<br />
240 35.3 8.83 353 22.95 8101 1378.49818 6722.9<br />
360 40.2 6.70 402 22.95 9226 2067.74726 7158.2<br />
540 45.8 5.09 458 22.95 10511 3101.6209 7409.5<br />
720 50.2 4.18 502 22.95 11521 4135.49453 7385.4<br />
1080 57.1 3.17 571 22.95 13104 6203.24179 6901.2<br />
1440 62.8 2.62 628 22.95 14413 8270.98906 6141.6<br />
2880 74.4 1.55 744 22.95 17075 16541.9781 532.8<br />
4320 83.8 1.16 838 22.95 19232 24812.9672 -5580.9<br />
5760 92.1 0.96 921 22.95 21137 33083.9562 -11947.0<br />
8640 106.6 0.74 1066 22.95 24465 49625.9343 -25161.2<br />
11520 119.3 0.62 1193 22.95 27379 66167.9124 -38788.6<br />
14400 130.9 0.55 1309 22.95 30042 82709.8906 -52668.3<br />
17280 141.7 0.49 1417 22.95 32520 99251.8687 -66731.7<br />
23040 161.6 0.42 1616 22.95 37087 132335.825 -95248.6<br />
28800 180 0.38 1800 22.95 41310 165419.781 -124109.8<br />
36000 201.3 0.34 2013 22.95 46198 206774.726 -160576.4<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 />
7,409 m³<br />
22.950<br />
EPA Export 24-08-2012:23:55:52
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