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, , <br /> f <br /> MOUND DESIGN tiNORKSHEET ' <br /> : ' . ' (For Flows up to 1200 gpd) , � <br /> A. FLOW ea�e s���.c.n�.�a.�, ; <br /> Estimated �S v gpd (see pages D-7 or I-3,4,5) . <br /> � neeroo�. �°t �n ry�nr � I� . <br /> or measured --- gpd x 1.5 = ''�° <br /> B. SEPTTC TANK LIQUID VOLUMES 3 's° '°° z'" � , <br /> 4 600 �73 ZS6 tiM � <br /> 1-1���v � t - �n d� allons (see a es C-3 or C-5) � s �so .so xs+ � ; <br /> 8 P 8 6 9ao su sn �� . ; <br /> � iaso 600 ��o m ; <br /> C. SOIIS (refer to site evaluation) s �� 6n �a .�..` � <br /> ; <br /> 1. Depth fio restricting layer= I�'�-rv �o�� inches s'"`""'�''""''�`''""' ; <br /> 2. Depth of percolaHon te�sts = I;t°� \� " inches �� �'�u'°�° `�°we•�•atir•-� ` � <br /> 3. Percolation rate S. � mpi 2;,� � ;;� � <br /> 4. Land slope � 96 ,,';.; ;� ,'�o � <br /> aw9 -- <br /> D. ROCK LAYER DIMENSIONS <br /> 1. Multiply flow rate by 0.83 to obtain required area of rock <br /> layer: Daily Flow x 0.83= ' <br /> �..Sv gpd x 0.83 sq. ft./gpd = ��.z sq. ft�-r��'» ��'v <br /> 2. Select width of rock layer(10 feet or less) _ �c� ft. <br /> � 3. Length of rock layer =Area+Width = ' <br /> (;� I sq. ft. + �c� ft. _ <�� ft. • Rock Bed <br /> r•r•• r.r•r•f•r•r.r•�•r•r•r•r ' <br /> ti ti•ti 4•�.ti ti•ti.ti•ti.ti•ti•ti•ti•ti• <br /> f•1 r•l•IMN•f•�I•r•r•h/•f ' <br /> . . . � •����i�1�ti�ti�ti�ti���ti�ti�ti� �ti� ���.., <br /> �' I'J r�Mf•1•rN•t� •d <br /> �fti:fti�,�f;f;f�f}f�f�ftif�ftiflf ,. <br /> E. ROCK VOLUME F-- �,n,g�h <br /> 1. Multiply rock area by rock depth to get cubic feet of rock; <br /> ,�y sq. ft. x l.�ft. _�cu. ft. <br /> 2. Divide cu. ft. by 27 cu. ft./cu. yd. to get cubic yards; ; <br /> �cu. ft. +27=�,cu. yd. ' � <br /> 3. MulHply cubic yards by 1.4 to get weight of rock in tons; ; <br /> �cu. yd. x 1.4 ton/cu. yd. _� tons. � <br /> i. <br /> F. ADSORP'TION WIDTH G �'� ""� <br /> 1. Percolation rate in top 12 inches of soil is S• / mpi AMorptba Width Si�ln�'hWe <br /> 2. Select allowable soil loading rate from table on page E-; ��"�� sa�,��. �� a�� <br /> .4 s gpd/ft� w�en� <br /> 3. Calculate adsorption width ratio by dividing rock layer P•�++�o., ca.�..s.�e •.-- <br /> 0.1 b S 8�nd 1.I0 1.00 <br /> loading rate of 1.20 gpd/ft�by allowable soil loading rate; o.�bs•• rrKs.�a•• o.�o :.00 <br /> 1.20 gpd/ft2+ . �� gpd/ftZ= � aw�s s.�ay� o.� i.st <br /> I6to:W l.am . 0.60 2A0 <br /> �a� sia� o.as i�n <br /> Check this value on page E-16. ��� s� <br /> 4. Multiply adsorption width ratio by rock layer width to get S�,�^ � --- --• <br /> required adsorption width; <br /> . �x �D ft = ��ft <br /> . � <br /> . <br /> � <br /> . � <br />