Determine the required spacing between pipes in a leachate-collection system using a geonet and the following properties. Assume the most conservative design and that all stormwater from a 25-yr, 24-hr storm enters the leachate-collection system. Geonet transmissivity, ? = 10 ?? 2 ? ?? ⁄ . Design storm (25-year, 24-hour) = 8.2 ?? . Drainage slope = 2% Maximum design head on liner = 6 ??

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Storm Sewers and Detention

The storm drains system transports rainwater or stormwater and other runoff from roads, parking lots, and roof downpipes directly to nearby creeks, rivers, or the sea without any treatment.