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� 0.45 gpd/ft2 Absorption area Soit Loading Rate, which gives a mound ratio of 2.7 (minimum) <br /> (this must match the soil boring tog) desired mound ratio 2.7 <br /> n� C�percent site slope EO-20%rarxse) �9 (%downstope site slope,�f different than upslope) <br /> s� 24 inches, or 2.d it. to Redox or other limiting condition (This must match the soik boring log) <br /> leads to a: <br /> 6) """ 12 inch, or 1.0 ft. Sand Lift Mound tRITICAL FOR FUTUttE CERTIFICATIONSl1! <br /> 2� •'• 27.0 ft.Totat ABSORPTION width (sand beyond rdckbed) <br /> Z8� OA ft. upslope and sideslope <br /> 17.0 ft. Downstope <br /> "'" Indivi�ual slope ratios give BERM widths(topsoil beyond rockbed)of: <br /> 9� 4:1 ups[ope ratio 9 ft. ups[ope berEn <br /> 30) 3:1 sideslope 12 ft.sidestope berms <br /> 3l) 4:1 downslope z4 ft. downslope berm <br /> 2� Overall Dfinensions: 10 ft.wide by 62.5 ft. long Rock bed <br /> 43 ft. wide by 87 ft. lang Mound footprint <br /> 4` inspection pipe <br /> 18"cover on top <br /> U slope bet'm � Downslo berm 24 <br /> .__,�...:. _.., _.__._....___,. 12"cover on sides <br /> ...... _._..__.:......:..... .. ., t6�baatY cap&6"to� <br /> 1.0 Clea+� sa.nci {i!t <br /> F- ;i:i�.i,; <br /> ' . - - - �- z.� ` -- .. -- - ,.. . <br /> ; ;. ., . . _. . _ <br /> .- ,� . -: <br /> �: ;':...;....: - - r � -- - <br /> '- i, t', ..._ ...._�. --� <br /> �._ . _.. .. ._ <br /> — -- <br /> Absor tion Width z�.0 - ..__ _ ... <br /> Note: <br /> For 0 to 1�stopes, .�tbsofption Width is measured from the Bedequally in bctith directions. <br /> F'or slopes �1�, Absorptiar Wydth is measured downhill fran the upslope ed�e af the Bed <br /> 3) *'"' Rock Bed: <br /> 10 ft. by 62.5 ft.by ��inches under pipe,plus 20%gives 2t yd'or'1.4= 29 ton <br /> � "'• Mound Sand: (note:volume is based an 3:7/4:1 stope from top of rockbed, Exchange sand for loamy cap if desired) <br /> 17.1 up + 76.4 downslope + 9.3 ends+ 33.6 under rock= 164 yd'or•1.4= 22q to� <br /> plus 20% <br /> 5> ""' Loamy Cap: <br /> 39 ft.by 83 ft. 6"deep, ptus 20%gives �Yd'a�`�-4= 101 ton <br /> 36) '~'a TOp501�: <br /> 43 ft.by 87 ft. 6'deep, plus 7.0%gives 83 Yd'or'1.4= 116 ton <br /> I her certf have completed this wark in accordance with ali applicable ordinances, rules and laws. <br /> MSTS/WRM Services, 1nc 1921 7/21/2011 <br /> igner Signature Company Lkense# Date <br />