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TRENCH CROSS-SECTION DETAILS <br /> - <br /> 6' Chain Link Fence <br /> x 8" CHU Gall =w��ee <br /> N - <br /> 0 A 0 r-O - - <br /> L <br /> n, 1 s <br /> slope FX <br /> C <br /> w �p Ln <br /> u v rLI: <br /> L <br /> rn <br /> .En: <br /> Secure d" Force Hain to Va111 __— C9v <br /> (see note t8) �J - <br /> r - - <br /> Q • , Gat <br /> Sand - <br /> aond_Xembrane to- ValI C- -liForte:.= _-.ti _4":. _:?iai <br /> r4 I _ <br /> '" I See-Mo to *12_ _ <br /> 28" Sand _ (A—.kmm - bra) _ - <br /> Uniformity Coef. rS <br /> Dust Content C 0.5X - <br /> 31„ Clean <br /> - _ <br /> S n• ne 4 { _- <br /> Underdrain Lime Clean St-one <br /> (see note #10} 34.3K3 <br /> �C-- 510 e to Underdra' p <br /> High-Density Po•lyethylene 'membrape <br /> Se'ctiO-n A--A - <br /> ��__.�_�_.-. -_• - ..-- '=—�c+b fir...-..�._.. -.� .- :. <br /> 10. Underdrain Line shall be 6" Sch. 40 PVC with 1/2" holes drilled on both <br /> sides in horizontal plane. Underdrain Co slope uniformly at the rate of <br /> lY to end of filter. Seal membrane filter liner to exterior of underdrain <br /> at point of penetration. <br /> 11. Solid Sch. 40 PVC shall be installed from underdrain line beneath filer <br /> to influent end of dosing tank. <br />