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H <br />35) <br />0.45 gpd/ft2 Absorption area Soil Loading Rate, which gives a mound ratio of 2.7 (minimum) <br />(this must match the soil boring log) desired mound ratio 1 2.7 <br />percent site slope (0-20% range) (% downslope site slope, if different than upslope) <br />18 inches, or 1.5 ft. to Redox or other limiting condition (need at least 12" to be a Type 1) <br />Treatment zone contains inches of 0% soil credit, and =inches of 50% soil credit. Giving a: <br />18 inch, or 1.5 ft. Sand Lift Mound CRITICAL FOR FUTURE CERTIFICATIONSI! l <br />27.0 ft.Total ABSORPTION width (with sand beyond rockbed as follows:) <br />0.0 ft. upslope and sideslope <br />17.Q ft. Downslope <br />Individual slope ratios give BERM widths (topsoil beyond rockbed) of: <br />4:1 upslope ratio 10 ft. upslope berm <br />3:1 sideslope 13 ft. sideslope berms <br />4;1 downslope 28 ft. downslope berm <br />Overall Dimensions: 10.0 ft. wide by 62.5 ft. long Rock bed <br />48 ft. wide by 189 ft. long Mound footprint <br />S— 4" inspection pipe <br />- 18" cover- on top <br />berm 1 10 <br />1.5 <br />Clean sand lift <br />berm 1 28 <br />12" cover on sides <br />(6" loamy cap & 6" topsoil) <br />_ _ _ _ _ 1.5 Depth to Limiting <br />Limrtirt Condition - _---- - -- -__ _ I�_ <br />Absorption Width -27.0 ` - -j-__-__s--_ <br />Note: <br />For 0 to 1% slopes, Absorption (Width is measured from the Bedequally in both directions. <br />For slopes >1%, Absorption Width is measured downhill from the upslope edge of the Bed <br />Rock Bed: <br />10.0 ft. by 62.5 ft. by ®inches under pipe, plus 20% gives 21 yd' or *1.4= 29 ton <br />Mound Sand: (note: volume is based on 3:1/4:1 slope from top of rockbed, Exchange sand for loamy cap if desired) <br />27.4 up + 107.7 downslope + 12.8 ends + 45.1 under rock = E23Dydj or *1.4= 324 ton <br />plus 20% <br />Loamy Cap: <br />®ft. by 85 ft. 6" deep, plus 20% gives <br />36) Topsoil: <br />=yd" or *1.4= 116 ton <br />48 ft. by 1 89 ft. 6" deep, plus 20% gives 95 yd' or *1.4= 133 ton <br />I hereby certify that I have completed this work in accordance with all applicable ordinances, rules and laws. <br />Rusty Olson"s Soil li Perc 810 1/7/2020 revise <br />esigner Signature Company License# hate <br />