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z3� 0.50 �pd/ftZ Absorption area Soil Loading Rate, which gives a mound ratio of 2.4 (minimum) <br /> (this must match the soil boring lo�) desired mound ratio 2.4 <br /> 2a� �percent site slope (0-20% range) �(% downslope site slope, if different than upslope) <br /> 2s> 24 inches, or 2.0 ft. to Redox or other limiting condition (need at least 12"to be a Type I) <br /> Treatment zone contains�inches of 0%soil credit, and �inches of 50%soil credit. Giving a: <br /> 26) 12 inch, or 1.0 ft. Sand Lift Mound CRITICAL FOR FUTURE CERTIFICATIONS!!! <br /> 2�> 24.0 ft.Total ABSORPTION width (with sand beyond rockbed as follows:) <br /> 2g) 0.0 ft. upslope and sideslope <br /> 14.0 ft. Downslope <br /> Individual slope ratios give BERM widths (topsoil beyond rockbed)of: <br /> z9� 4:1 upstope ratio 9 ft. upstope berm <br /> 30� 4:1 sideslope 15 ft. sideslope berms <br /> 3t> 4:1 downslope 22 ft. downslope berm <br /> 32> Overall Dimensions: 10.0 ft. wide by 63.0 ft. tong Rock bed <br /> 41 ft. wide by 93 ft. long Mound footprint <br /> 4" inspection pipe <br /> 18" cov�r on top <br /> Upslope berrn 0 Downsla e berm 22 <br /> . 12" cover- on sides <br /> _ _.. ' `�� (6��loamy cap&6"topsoil) <br /> �-� 1.0 ��P��� sand tift <br /> - -- -- <br /> _ . ._ <br /> 2.0 ��F�th t�� Limitin� <br /> -- — <br /> ��miti���� C;��nditlon �— -� <br /> -- . <br /> _�_ _� - ---..._ <br /> Absorptian Width 24.0 - -- <br /> �4tp: <br /> For 0 to 1�slopes, A,6sorption Width is measured from the Bedequally in both directions. <br /> For slopes >1%, Absorptr'on Width is measured downhi(t fram the upslope ed�e of the Bed. <br /> 33) Rock Bed: <br /> 10.0 ft. by 63.0 ft. by �9 inches under pipe, plus 20%gives 28 yd'or`1.4= 39 ton <br /> 3a� Mound Sand: (note: volume is based on 3:1/4:1 slope from top of rockbed, Exchange sand for loamy cap if desired) <br /> 19.1 up + 72.6 downslope + 11.6 ends + 32.7 under rock = 163 ydj or�1.4= 22g ton <br /> plus 20% <br /> 3s� Loamy Cap: <br /> 37 ft. by 89 ft. 6"deep, plus 209� gives 74 yd'or"1.4= 104 ton <br /> 36) TopsoiL• <br /> 41 ft. by 93 ft. 6" deep, plus 20% �ives 85 yd'or*1.4= 119 ton <br /> �-I�lie'reby c�ertify that I have completed this work in accordance with all applicable ordinances, rules and laws. <br /> y <br /> � `��j '�� 3/22/2016 <br /> Designer Signature Company License# Date <br />