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0.45 gpd/ft2 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 24, 11 percent site slope (0-20% range) 11 (%downslope site slope, if different than upslope) 's. 22 inches, or 1.8 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: 26) 14 inch, or 1.2 ft. Sand Lift Mound CRITICAL FOR FUTURE CERTIFICATIONS!!! 27) 27.0 ft.Total ABSORPTION width (with sand beyond rockbed as follows:) 28) 0.0 ft. upslope and sideslope 17.0 ft. Downslope Individual slope ratios give BERM widths (topsoil beyond rockbed) of: 29) 4:1 upslope ratio 9 ft. upslope berm 30) 3:1 sideslope 13 ft. sideslope berms 3 i) 4:1 downslope 30 ft. downslope berm 32) Overall Dimensions: 10.0 ft. wide by 63.0 ft. long Rock bed 49 ft. wide by 89 ft. long Mound footprint 4" inspection pipe 18" cover on top k Upslope berm 9 ) Downslope berm 30 .....40000011101.11.1111111111111111 - �� 12" cover on sides (6"loamy cap&6"topsoil) 1.2 Clean sand lift _ — 1.8 Depth to Limiting Limiting Condition _ ---------------__ Absorption Width 27.0 1'— ------------_ Note: For 0 to 1% slopes, Absorption Width is measured from the ger/equally in both directions. For slopes >1%, Absorption Width is measured downhill from the upslope edge of the Bed 33) Rock Bed: 10.0 ft. by 63.0 ft. by 6 inches under pipe, plus 20%gives 21 yd'or*1.4= 29 ton 3->> Mound Sand: (note: volume is based on 3:1/4:1 slope from top of rockbed, Exchange sand for loamy cap if desired) 19.6 up + 114.3 downslope + 11.9 ends + 40.1 under rock= 223 yd'or*1.4= 312 ton plus 20% Loamy Cap: 45 ft. by 85 ft. 6"deep, plus 20%gives 85 yd'or*1.4= 119 ton sn Topsoil: 49 ft. by 89 ft. 6"deep, plus 20%gives 97 yd'or*1.4= 136 ton I hereby certify that I have completed this work in accordance with all applicable ordinances, rules and laws. Rusty Olson"s Soil Ft Perc 810 12/6/2017 /Designer Signature Company License# Date