07-29-2021 Septic Design - Laserfiche WebLink

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25) 0.60 gpd/ft2 Absorption area Soil Loading Rate, which gives a mound ratio of (minimum) (this must match the soil boring log) desired mound ratio 2.0 percent site slope (0-20% range) (% downslope site slope, if different than upslope) 12 inches, or 1.0 ft. to Redox or other limiting condition (need at least 12" to be a Type l) Treatment zone contains=inches of 0% soil credit, and =inches of 50% soil credit. Giving a: 24 inch, or 2.0 ft. Sand Lift Mound CRITICAL FOR FUTURE CERTIFICATIONS!!! 20.0 ft.Total ABSORPTION width (with sand beyond rockbed as follows:) D.D ft. upslope and sideslope 10.0 ft. Downslope Individual slope ratios give BERM widths (topsoil beyond rockbed) of: 4:1 upslope ratio 13 ft. upslope berm 4:1 sideslope 18 ft. sideslope berms 4:1 downslope 24 ft. downslope berm Overall Dimensions berm Limfting Condi 10.0 ft. wide by 50.0 ft. long Rock bed 47 1 ft. wide by 1 86 ft. long Mound footprint 4" inspection pipe ,-- 18" cover on top 13 2� Clean sand lift 1.0 Depth to Limiting --------------- Absorotion Width 24 12" cover on sides (6" loamy cap &6" topsoil) 20.0 -----1-----------_ Mote: For 0 to 1% slopes, Ahsorptr'on Width is measurers from the Bedequally in both directions. For slopes >1%, Absorptinrr Width is measured downhill from the upslope edge of the Bed Rock Bed: 10.0 ft. by 50.0 ft. by ®inches under pipe, plus 20% gives =yd" or *1.4= 24 ton Mound Sand: (note: volume is based on 3:1/4:1 slope from top of rockbed, Exchange sand for loamy cap if desired) 42.0 up + 98.5 downslope + i9.2 ends + 42.6 under rock = 243 yd' or *1.4= 340 ton plus 20% Loamy Cap: 43 ft. by 82 ft. 6" deep, plus 20% gives 36) Topsoil: 79 ydj or "1.4= Ti 17 ton 47 ft. by 86 ft. 6" deep, plus 20% gives 90 yd' or *1.4= 1 2-6-1 ton I hereby certify that I have completed this work in accordance with all applicable ordinances, rules and laws. — Rusty Olson's Soil l3 Perc 810 9/29/2020 Designer Signature Company License# Date