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• <br /> Roof <br /> House 7 downspout <br /> Catch basin <br /> (yard drain) <br /> flow <br /> Roof <br /> downspout <br /> 0 <br /> 48 Inch diameter <br /> Plan View hole filled with 1 Y2 <br /> - 3"washed drain <br /> rock <br /> Roof Mark center of hole <br /> j downspout with 1" capped PVC <br /> or other means flush <br /> House / Overflow with surface <br /> j Splash block Topsoil <br /> • 1r,u"11)1(i6thil\'1J(111(,u►/ ' )rii� r,�q/,\�1,)��li� <br /> ' -- ; 1' min. <br /> flow 1n��O ��O�JO <br /> Mbi3r‘°ger <br /> � CogO <br /> Fine mesh screen >1 C� C <br /> Min. dia. <br /> PVC pipe jo00 0�000000 <br /> Catch basin 0(�oQQ�nO�Q�n a O 4' min. <br /> (yard drain) `( 48 Inch diameter Q( <br /> Sides of hole lined L(hole filled with 1 Y2 <br /> with filter fabric C -3"washed drain <br /> �� rock C <br /> 15' min. NH) 00 0 00 O Qo� <br /> nOt <br /> Min. 1' above seasonal high groundwater table <br /> Section View <br /> NOT TO SCALE <br /> Typical Downspout Infiltration Drywell <br /> Revised June 2016 <br /> DEPARTMENT OF <br /> ECOLOGY Please see http://www.ecy.wa.gov/copyright.html for copyright notice including permissions, <br /> State of Washington limitation of liability, and disclaimer. <br />