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,— R oof D omrnspouf <br />House <br />---- Catch B asin <br />Drain) <br />fT <br />Roof <br />D€wnspod <br />`- <br />DRY WELL <br />481nch Diameter <br />Hole Filledwith <br />PLAN VIEW <br />1V2-'Washed <br />Drain Rod; <br />NTS <br />Roof Dwnspout <br />fit a4, C eater of Hole <br />with 1" Capped PVC <br />House <br />or Mer rreans <br />l,—Oved1cm, <br />— Splash B loch <br />Topsoil — <br />Fl ush w ith Surface <br />I min. <br />fbti+' <br />Fine lrlebl l Screen' <br />— Min. 4' ci <br />_ 'r <br />PIVC P Ipe: <br />Ar <br />Ce.ch Basin <br />' <br />(''6rd Grain) <br />- <br />48Irch Dian , ' 4 min. <br />Sides of Hole <br />Hole Filled%vith <br />Lined with <br />1V2- T Washed <br />Filter Fabric <br />Drain Rod. <br />I V mi �. <br />Mire. V above SeasomI <br />DRY WELL <br />H igh Groundwater Table <br />T <br />SECTION <br />NTS <br />Figure 3.1.4 - Typical Downspout Infiltration Drywell <br />Source: King Comity <br />Volume III — Hydrologic Analysis and Flow Control BMPs — December 2014 <br />3-9 <br />