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3) 0.45 gpd/ftz Absorption area Soil Loading Rate, which gives a mound ratio of 2.7 (minimum) (this must match the soil boring tog) desired mound ratio 1 2.7 4) Qpercent site slope (0-20% range) �9 (% downslope site slope, if different than upslope) 5) 1$ inches, or 7.5 ft. to Redox or other limiting condition (need at least 12" to be a Type 1) Treatment zone contains =D inches of 0% soil credit, and =inches of 50% soil credit. Giving a: 6) 18 inch, or 1.5 ft. Sand Lift Mound CRITICAL FOR FUTURE CERTIFICATIONS!!! 7) 27.0 ft.Total ABSORPTION width (with sand beyond rockbed as follows:) 8) O.Q ft. upslope and sideslope 17.0 ft. Downslope Individual slope ratios give BERM widths (topsoil beyond rockbed) of: 9) 4:1 upslope ratio 10 ft. upslope berm o) 3:1 sideslope 13 ft. sideslope berms i) 4;1 downslope 28 ft. downslope berm Overall Dimensions: 10.0 1 ft. wide by 63.0 ft. long Rock bed 48 ft. wide by 89 ft. Long Mound footprint 4" inspection pipe 18" cover on top Upslope herrn 101 L Downslope berm 28 12' cover on sides (6" loamy cap & 6" topsoil) 1.5 Clean sand Lift 1.5 Depth to limiting p 1-1 Absortion Width ~ 27.0 -- - - - - --- Note For 0 to 1 slopes, Absorption Width is measured from the Bedequally in both directions. For slopes >1%, Absorption Width is measured downhill from the upslope edge of the Bed. Rock Bed: 1D.D ft. by aflft. by ®inches under pipe, plus 20% gives 21 yds or *1.4= 29 ton Mound Sand: (note: volume is based on 3:1/4:1 slope from top of rockbed, Exchange sand for Loamy cap if desired) 27.6 Up + 1D8.4 downslope + 12.8 ends + 45.5 under rock =233 yd' or *1.4= 326 ton plus 20% Loamy Cap: 44 ft. by 85 ft. 6" deep, plus 20% gives F--84—]yd" or *1.4= 118 ton Topsoil: 48 ft. by 89 ft. 6" deep, plus 20% gives 95 yds or "1.4= 133 ton I hereby certif that I have completed this work in accordance with all applicable ordinances, rules and taws. Rusty Olson"s Soil ft Perc 810 12/5/2018 Designer Signature Company License# Date