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')) 28) 31) D.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 15 percent site slope (0-20% range) 15 (% downslope site slope, if different than upslope) 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: 20 inch, or 1.7 ft. Sand Lift Mound CRITICAL FOR FUTURE CERTIFICATIONS!!! 27,0 ft.Total ABSORPTION width (with sand beyond rockbed as follows:) 0.0 ft. upslope and sideslope 17.0 ft. Downslope Individual slope ratios give BERM widths (topsoil beyond rockbed) of: 4:1 upslope ratio 12 ft. upslope berm 3:1 sideslope 16 ft. sideslope berms 3:1 downslope 29 ft. downslope berm 32- Overall Dimensions: 10.0 ft. wide by 63.0 ft. long Rock bed 51 ft. wide by 95 ft. long Mound footprint 4" inspection pipe 18" cover on top UUps_lope berm 12 �I L Downsloae berm 1 29 12" cover on sides (6" loamy cap & 6" topsoil) 1 Clean sand lift 1.3 Depth to Limiting tinsg Condition "-------_�� Absorption Width ---- Note: For 0 to 1% slopes, Absorption Width is measured from the 3&dequatly 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 inches under pipe, plus 20% gives 21 yd3 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) 28.4 up + 158.8 downslope + 19.3 ends + 56.4 under rock =F 315 yd' or *1.4= 442 ton plus 20% 35) Loamy Cap: 47 ft. by 91 ft. 6" deep, plus 20% gives 96 yd3 or *1.4= 134 ton 36) Topsoil: 51 ft. by 95 ft. 6" deep, plus 20% gives 108 yd' or *1.4= 151 ton I hereby certify that I have completed this work in accordance with all applicable ordinances, rules and laws. gner Signature Rusty Olson"s Soil it Perc Company 810 License# R/16/7()19 vase