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. 1VlUUl�U UL�ylilV VVUKIt`�'!-y�lsl <br /> � � � � ' (For Flows up to 1200 gpd) <br /> --- <br /> A. �,QW Epimaed Sewqe Plow�in Osllant pa d�y <br /> Estimated��gpd (see pages D-7 or I-3,4,5) �� <br /> or measured gpd x 1.5 = — „�,,,� 'yP°� '�'°°" '�'P°"' �'�'P° <br /> v <br /> B. SEPTTC TANK LI UID VOLUMES 3 'so '°° 2'" � <br /> Q 4 600 373 236 NM <br /> �-��5� a- � - �o o� gallons (see pages C-3 or C-5) 6 9 o su n �•�� <br /> � toso �oo a�o <br /> a �zoo b�s �oe ��. <br /> C. SOILS (refer to site evaluation) . <br /> 1. Depth to restricting layer = L�to a�'� inches � ''"'`"'`�''""`�'"''""' <br /> 2. Depth of percolation tests = I a inches N��..�r M�u�" �aeb���� <br /> near�. ��r .•*w d� <br /> 3. PercolaHon rate 1 a.t-J mpi :;� ;� "ss <br /> 4. Land slope s % a - :- `�'` —'�10 �� <br /> c 4S°�v 'F�-a-S' F� s rC'��� ,.e«9 xo�o` <br /> � erer 9 • <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 /> 2�o gpd x 0.83 sq. ft./gPd = �. �,_�,sq. ft.-�- �o�o- ���t� <br /> 2. Select width of rock layer (10 feet or less) = I o ft. <br /> 3. Length of rock layer = Area+Width = <br /> ��y`sq. ft. + ��ft. _ �r S%ft. � Rock Bed <br /> !•t•t•t•t•l•t•J•t•t•l•f•t•t•I <br /> 1'�•ti•ti•ti•�ti ti•ti•L•ti•�•t•1•t. . <br /> .}•f•�•r•I•I•f•� /.t•�.t.t•t•l <br /> � 1�.�•ti•ti•ti•ti•ti•ti•�•ti•tiH•ti•ti•1• d1f1 5��E�. <br /> �t•�/•r�d�f�r�t•t!•f•f•1•t�t�t � <br /> ♦•ti•ti•1�ti�ti•�•�•�•'ti•ti•ti•�•ti•ti• <br /> E. ROCK VOLUME � •f•�_r•r•r r•r•f•r•f•r•r <br /> Length <br /> 1. Multiply rock area by rock depth to get cubic feet of rock; . <br /> �Sf4 sq. �ft. x /•vsft. _ .,�j�cu. ft. <br /> 2. Divide cu. ft. by 27 cu. ft./cu. yd. to get cubic yards; <br /> Z cu. f t. +27= a'cu. yd. . � <br /> 3. Multiply cubic yards by 1.4 to get weight of rock in tons; <br /> a�,cu. yd. x 1.4 ton/cu. yd. = 3� tons. <br /> F. ADSORPTION WIDTH ��A�r Lo'4'"� <br /> 1. Percolation rate in top 12 in�hes of soil is la•y mpi Ab�orptton Width Sisins 7bble <br /> i'«col.Non Rn cdbm A.tto or <br /> 2. Select allowable soil loading rate f rom table on page E-; M�h MPI) s°"'�x1pe ''"""'"" A����widlh <br /> . 4.� gpd/f[_ +mu�e roa w Rock l.ya <br /> Wid�A <br /> 3. Calculate adsorption width ratio by dividing rock layer P•��.•�•�►o.�• c�se�e ..-. - <br /> o.iws s.�a t.to l.00 <br /> loading rate of.1.20 gpd/ft�by allowable soil loading rate; o.�bs•• �s.�•• o.�o :.no <br /> 1.20 d/ft2+ � 2_ 6�o�s s�ney uwn o.�9 �.s2 <br /> 8P ��BPd�ft ' �,�� �6�a�o � o.�o :.��o <br /> J 1 to 43 Sik Lam 030 2.�0 <br /> Check this value on page E-16. -�a m �'"�.�°'^- � s�u <br /> 4. Multiply adsorption width ratio by rock layer width to get s��� c�.y ..... -�•- <br /> required adsorpHon width; <br /> ��x_�ft = �..�ft <br /> , <br />