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7) 8) 0.45 gpd/ft' Absorption area Soil Loading Rate, which gives a mound ratio of2.7 (minimum) (this must match the soil boring log) desired mound ratio 2.7 percent site slope (0-20% range) V� I(% 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.q 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 4:1 sideslope 17 ft. sideslope berms 4:1 downslope 2q ft. downslope berm Overall Dimensions: Upslope berm "i17iting Conal 10.0 ft. wide by 50.0 ft. long Rock bed 42 Zft. wide by 84 ft. long Mound footprint 4" inspection pipe e-- 18" cover on top 12 1 Clean sand lift 1.3 j 13epth to Limitin8 Absorption Width berm L 20 12" cover on sides (6" loamy cap & 6" topsoil) 27.E — — — — i_.— -- .. —— _ - Note: For 0 to 1% slopes, Absorption Width is measured from the Bedequally in both directions. For slopes >1%, Absorptfw7 Width is measured downhill from the upslope edge of the Bed Rock Bed: 10.0 fit. 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) 33.3 up + 70.6 downslope + 14.9 ends + 35.5 under rock =185 yd' or *1.4= 259 ton plus 20% 5) Loamy Cap: 38 ft, by 80 ft. 6" deep, plus 20% gives 68 yd' or *1.4= 95 ton 6) Topsoil: 42 ft. by 84 ft. 6" deep, plus 20% gives FT9 yd' or *1.4= 111 ton I hereby certify that I have completed this work in accordance with all applicable ordinances, rules and laws. 5!�51- Rusty Olson"s Soil rt Perc 810 7/20/2019 igner Signature Company License# Date