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0.45 gpd/ftz Absorption area Soil Loading Rate, which gives a mound ratio of 2.7 1 (minimum) (this must match the soil boring log) desired mound ratio 2.7 percent site slope (0-20% range) �5 (% 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! L! 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 13 ft. sideslope berms 4:1 downslope 21 ft. downslope berm Overall Dimensions: 10.0 1 ft. wide by 12.0 ft. long Rock bed 43 ft. wide by 38 ft. long Mound footprint 4" inspection pipe f-- 18" cover on top berm 12 1.7 Limftr'ng Condition Clean sand lift ----------------- Depth to Limiting AbsorDtion Width berm 1 21 12" cover on sides (6" loamy cap &6" topsoil) 27.0 ---- -- I_. .. Note: For O to 1% slopes, Absorption Width is measured from the Bedequally in both directions. For slopes >1 %, Absorption Wdth is measured downhill from the upslope edge of the Bed. Rock Bed: 10.0 ft. by 12.0 ft. by inches under pipe, plus 20% gives =yd' or *1.4= ®ton Mound Sand: (note: volume is based on 3:114:1 slope from top of rockbed, Exchange sand for loamy cap if desired) 13.2 up + 27.9 downslope + 11,1 ends + 8.5 under rock = 73 yd' or *1.4= 102 ton plus 20% Loamy Cap: 39 ft. by 34 ft. 6" deep, plus 20% gives Topsoil: 43 ft, by 38 ft. 6" deep, plus 20% gives I hereby certify that I have completed this work in accordance Designer Signature 30 yd' or *1.4= 42 ton 37 yd' or *1.4= 52 ton all applicable ordinances, rules and laws. Rusty olson's Soil it Perc 810 Company License# 11/12/2018 nate