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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PRELIMINARY - SURFACE WATER STORAGE CALCULATIONS FOR<br />
Proposed Landfill Development Control Area- Naul - 100 Year Throttle<br />
Storm Return Period =<br />
Maximum Storage Required =<br />
Allowable Discharge =<br />
100 Year incl. 10%CC<br />
771 m³<br />
Rainfall Data as Recorded by Met Eireann in FSU - OPW<br />
Total<br />
2.64 l/s/ha 3 l/s<br />
Proposed Impermeable Areas Gross Unit Impermeability Nett<br />
Ro<strong>of</strong> Area 0.166 ha @ 100% 0.166<br />
Roads, Paths Paving 0.666 ha @ 100% 0.666<br />
Grassed Area 1.20 ha @ 30% 0.360<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 19.6 784.0 196 1.19 234 1.6 232.0<br />
30 24.1 482.0 241 1.19 287 3.2 284.1<br />
60 29.6 296.0 296 1.19 353 6.3 346.5<br />
120 36.4 182.0 364 1.19 434 12.7 421.2<br />
180 41.1 137.0 411 1.19 490 19.0 470.9<br />
240 44.8 112.0 448 1.19 534 25.3 508.7<br />
360 50.5 84.2 505 1.19 602 38.0 564.0<br />
540 57.1 63.4 571 1.19 681 57.0 623.7<br />
720 62.2 51.8 622 1.19 741 76.0 665.5<br />
1080 70.2 39.0 702 1.19 837 113.9 722.9<br />
1440 76.8 32.0 768 1.19 915 151.9 763.5<br />
2880 90.2 18.8 902 1.19 1075 303.8 771.4<br />
4320 101.3 14.1 1013 1.19 1207 455.7 751.8<br />
5760 111 11.6 1110 1.19 1323 607.6 715.5<br />
8640 127.9 8.9 1279 1.19 1525 911.5 613.1<br />
11520 142.8 7.4 1428 1.19 1702 1215.3 486.9<br />
14400 156.4 6.5 1564 1.19 1864 1519.1 345.2<br />
17280 169 5.9 1690 1.19 2014 1822.9 191.5<br />
23040 192.3 5.0 1923 1.19 2292 2430.6 -138.4<br />
28800 213.6 4.5 2136 1.19 2546 3038.2 -492.1<br />
36000 238.4 4.0 2384 1.19 2842 3797.8 -956.1<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 />
771 m³<br />
1.192<br />
EPA Export 24-08-2012:23:55:52
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