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IF <br />0.45 gpd/ft2 Absorption area Soil Loading Rate, which gives a mound ratio of2.7 (minimum) <br />(this must match the soil boring log) desired mound ratio 2.7 <br />percent site slope (0-20% range) L ° I (% downslope site slope, if different than upslope) <br />20 inches, or 1.7 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 />16 inch, or 1.3 ft. Sand Lift Mound CRITICAL FOR FUTURE CERTIFICATIONS!!! <br />27.0 ft.Total ABSORPTION width (with sand beyond rockbed as follows:) <br />0.0 ft. upslope and sideslope <br />17.0 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 12 ft. sideslope berms <br />4:1 downslope 24 ft. downslope berm <br />Overall Dimensions: 10.0 ft. wide by 50.0 1 ft. long Rock bed <br />44 ft. wide by 74 ft. long Mound footprint <br />4" inspection pipe <br />18" cover on top <br />Upslope berm 1© ,I 1� b Downslope berm 24 <br />12" cover on sides <br />(6" loamy cap & 6" topsoil) <br />1.3 ]IClean sand lift <br />_ 1.7 Depth to Limiting <br />Lirnil:ing Condition — --_--- --- <br />Absorption Width F57.0 _ - `— — _ — — _ — <br />Dote: <br />For 4 to 1% slopes, Absorption Width is measured from the Bedequally in moth directions. <br />For slopes >1%, Absorptran Width is measured downhill from the upslope edge of the Bed. <br />Rock Bed: <br />10,0 ft. by 50.0 ft. by ®inches under pipe, plus 20% gives =yd-' or *1.4= 24 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 />20.2 up + 70.b downslope + 10.9 ends + 32.1 under rock = F1-60103 or *1.4= 225 ton <br />plus 20% <br />s) Loamy Cap: <br />40 ft. by 70 ft. 6" deep, plus 20% gives <br />6) Topsoil: <br />44 ft. by 74 ft. 6" deep, plus 20% gives <br />63 yd' or *1.4= 88 ton <br />73 yd' or *1.4= 102 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 £t Perc 810 10/22/2019 <br />1pkcsigner Signature Company License# Date <br />