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0.60 gpd/ft2 Absorption area Soil Loading Rate, which gives a mound ratio of 2 (minimum) (this must match the soil boring log) desired mound ratio 2.0 24 Fr—percent site slope (0.20% range) 8 (%downslope site slope, if different than upslope) 25, 26 inches, or 2.2 ft. to Redox or other limiting condition (need at least 12"to be a Type I) Treatment zone contains 0 inches of 0%soil credit, and 0 inches of 50%soil credit. Giving a: 12 inch, or 1.0 ft. Sand Lift Mound CRITICAL FOR FUTURE CERTIFICATIONS!!! :7; 20.0 ft.Total ABSORPTION width (with sand beyond rockbed as follows:) 28; 0.0 ft. upslope and sideslope 10.0 tft. Downslope Individual slope ratios give BERM widths (topsoil beyond rockbed)of: 2a, 4:1 upstope ratio 10 ft. upslope berm ;, , 3:1 sidestope 12 ft. sideslope berms 3f 4:1 downslope 20 ft. downslope berm ?=) Overall Dimensions: 10.0 ft. wide by 50.0 ft. long Rock bed 40 ft. wide by 74 ft. long Mound footprint 4" inspection pipe 18" cover on top {Upstope berm t0 a '< Downslope berm 20 � � 12" cover on sides • (6"loamy cap&6"topsoil) 1.0 Clean sand Cif' 2.2 Absorption Width [ 20.0 Note: For 0 to 1% slopes. Absorption Width is measured from the Bedequally in both directions. For slopes 51%, Absorption Width is measured downhill from the upslope edge of the Bed. 33, Rock Bed: 10.0 ft. by 50.0 ft. by 6 inches under pipe, plus 20%gives 17 yd'or*1.4= 24 ton 34, Mound Sand: (note: volume is based on 3:1/4:1 slope from top of rockbed, Exchange sand for loamy cap if desired) 14.8 up + 56.3 downslope + 8.7 ends+ 25.9 under rock= 127 yd'or"1.4= 178 ton plus 20% ;c Loamy Cap: 36 ft. by 70 ft. 6"deep, plus 20%gives 56 yd'or*1.4= 78 ton 3b. Topsoil: 40 ft. by 74 ft. 6"deep, plus 20%gives 66 yd'or 1.4= 92 ton I hereby certify that I have completed this work in accordance with all applicable ordinances, rules and laws. Rusty olson's Soil& Perc 810 4/18/2017 igner Signature Company License# Date