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W 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 12 percent site slope (0-20% range) 12 (% downslope site slope, if different than upslope) 22 inches, or 1.8 ft. to Redox or other limiting condition (need at least 12" to be a Type 1) Treatment zone contains FOinches of 0% soil credit, and =inches of 50% soil credit. Giving a: 14 inch, or 1.2 ft. Sand Lift Mound CRITICAL FOR FUTURE CERTIFICATIONSI!! 27.0 ft.Total ABSORPTION width (with sand beyond rockbed as follows:) D.0 ft. upslope and sidesiope 17.0 ft. Downslope Individual slope ratios give BERM widths (topsoil beyond rockbed) of: 4:1 upslope ratio 9 ft. upslope berm 3;1 sideslope 13 ft. sidesiope berms 3:1 downslope 27 ft. downslope berm Overall Dimensions: 10.0 1 ft. wide by 63.0 ft. long Rock bed 46 ft. wide by 89 ft. long Mound footprint 4" inspection pipe 18" cover on tap U slope berm 1-9 L' Downslope herrn z7 1.2-]l Clean sand Lift _ _8 Limiting Conditior, Depth to Limiting Absorption Width 12" cover on sides (6`° loamy cap & 6" topsail) 27.0 —— -1— --- -- Note: For 0 to 1% slopes, Absorption width is measured from the 6edequatly in both directions. For slopes }1%, Absorption Width is measured downhill from the upslope edge of the Bed. Rock Bed: 10.0 ft. by 63.0 ft. by ©inches under pipe, plus 20% gives 21 yd' or X1.4= 29 ton ,.i Mound Sand: (note: volume is based on 3:1/4:1 slope from top of rockbed, Exchange sand for loamy cap if desired) 19.0 up + a1.fldownslope + 12.6 ends + 41.2 under rock =235 yd' or x'1.4= 329 ton plus 20% Loamy Cap: 42 ft. by 85 ft. 6" deep, plus 20% gives 88 yd' or *1.4= 123 tan 3(,j Topsoil: 46 ft. by 89 ft. 6" deep, plus 20% gives 91 yd' or "1.4= 127 ton I hereby certify that I have completed this work in accordance with all applicable ordinances, rules and laws. ry, Rusty Olson"s Soil Et Perc 810 11/20/2017 IfT6signer Signature Company License# Date