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• <br /> 231 0.60 gpd/ft2 Absorption area Soil Loading Rate, which gives a mound ratio of 2 (minimum) <br /> (this must match the soil boring log) desired mound ratio 2.0 <br /> 24) ' 6 (percent site slope (0.20%range) 15 (%downslope site slope, if different than upslope) <br /> 251 20 inches, or 1.7 ft. to Redox or other limiting condition (need at least t 2"to be a Type I) <br /> Treatment zone contains 0 inches of 0%soil credit, and' 0 inches of 50%soil credit. Giving a: <br /> 26) 16 inch, or 1.3 ft. Sand Uft Mound CRITICAL FOR FUTURE CERTIFICATIONS!!! <br /> 27) 20.0 ft.Total ABSORPTION width (with sand beyond rockbed as follows:) <br /> 28) 0.0 ft.upslope and sideslope <br /> 10.0 ft. Downslope <br /> Individual slope ratios give BERM widths(topsoil beyond rockbed)of: <br /> 29) 4:1 upstope ratio 11 ft. upslope berm <br /> 30) 3:1 sidestope 12 ft. sideslope berms <br /> 31) 3:1 downslope 22 ft. downslope berm <br /> .32) Overall Dimensions: 10.0 ft. wide by 63.0 ft. long Rock bed <br /> 43 ft.wide by 87 ft. long Mound footprint <br /> 4"inspection pipe <br /> 18"cover on top <br /> Upslope berm 11 1 Downslope berm 22 <br /> < } <br /> 12"cover on sides <br /> ,,----L - Or loamy cap k 6`topsoil) <br /> 1.3 C(ean sand lift <br /> I 1,7 Depth to Limiting <br /> Limiting Condition — '�----------___-- <br /> Absorption <br /> _ <br /> Absorption Width f 20.0 ' ____ ----- ——_ <br /> Note: <br /> For 0 to 1%slopes,Absorption Wan is measured from the Bedequally in both directions. <br /> For slopes >1%, Absorption*kith is measured downhill from the upstope edge of the Bed <br /> 33) Rock Bed: <br /> 10.0 ft. by 63.0 ft. by 6 !inches under pipe, plus 20%gives 21 yd3 or`1.4= I 29 'ton <br /> 34) Mound Sand: (note:volume is based on 3:1/4:1 slope from top of rockbed, Exchange sand for loamy cap if desired) <br /> 25.7 up + 71.6 downslope + 9.6 ends+ 38.1 under rock= 174 yd3 or 1.4= I. 244 'ton <br /> plus 20% <br /> 35) Loamy Cap: <br /> 39 ft. by 1.7.3i—lft. 6"deep, plus 20%gives 72 yd'or'1.4= 101 ton <br /> 36) Topsoil: <br /> 43 ft. by 87 ft. 6"deep,plus 20%gives 84 yd'or`1.4= I 118 'ton <br /> I hereby ce that I have completed this work in accordance with all applicable ordinances, rules and laws. ----- <br /> Runty Olson"s Soil Et Perc 810 12/4/2017 <br /> gner Signature Company License# Date <br /> i <br />