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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 log) desired mound ratio 2.7 4) 10 percent site slope (0-20% range) 10 (% downslope site slope, if different than upslope) s) 16 inches, or 1.3 ft. to Redox or other limiting condition (need at least 12" to be a Type 1) Treatment zone contains=inches of 0% soil credit, and inches of 50% soil credit. Giving a: 6) 20 inch, or 1.7 ft. Sand Lift Mound CRITICAL FOR FUTURE CERTIFICATIONS!!! 7) 27.0 ft.Total ABSORPTION width (with sand beyond rockbed as follows:) B) O.D ft. upslope and sideslope 17.0 ft. Downslope Individual slope ratios give BERM widths (topsoil beyond rockbed) of: > 4:1 upslope ratio 10 ft. upslope berm sideslope 1$ ft. sideslope berms downslope 30 ft. downslope berm 3) Overall Dimensions: Unslooe berm Limiting Candi 10.0 ft. wide by 50.0 ft. long Rock bed 50 ft. wide by 86 1 ft. long Mound footprint 4" inspection pipe (— 18" cover on top lug 1.7 ]1 Clean sand lift 1.3 j Depth to Limiting — _------- — — s_. Absorption Width rnn 1 30 12" cover an sides (6" loamy cap & 6" topsoil) 27.0 Note_ : For 0 to 1% slopes, Absorption Width is measured from the Bedequatly in moth directions. For slopes >1, Absorption Width is measured downhill from the upslope edge of the Bed Rock Bed: 10.0 ft. by 50.0 ft. by L"Jinches under pipe, plus 20% gives =yd-' or *1.4= 24 ton Mound Sand: (note: volume is based on 3:1/4:1 slope from top of rockbed, Exchange sand for loamy cap if desired) 29.4 up + 124.5 downslope + 19.9 ends + 40.1 under rock = 263 yd3 or *1.4= 368 ton plus 20% Loamy Cap: 46 ft, by 82 ft. 6" deep, plus 20% gives 36) Topsoil: 84 yd' or *1.4= 118 ton 50 ft. by 86 ft. 6" deep, plus 20% gives 96 yd' or "1.4= 134 ton I hereby ceCt-q that I have completed this work in accordance with all applicable ordinances, rules and laws. X Rusty Olson's Soil Et Perc 810 4/5/2022 esigner Signature Company License# Date