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� . . MOUND DESIGN. WOrKSHLET
<br /> ' � , (For Flows up to 1200 �pd) ` ,
<br /> ,�-: ..
<br /> A. FLOW �uimuicJ$cwugc i•lou•s In C�LIIINIS(KI IIJy I i
<br /> (�r�s) .—� I
<br /> Estimated ,;� gpd (see pabes D-7 or I-3, 4, 5) .��:,x., '
<br /> or measured �r d x 1.5 = . �� Tr� � Ty�:ll�"i'y�iil ��,�� ;
<br /> nu„r�v,m� � �v
<br /> B. SEPTIC TANK LIQUID VOLUMES � I �('� ��s ���� , j
<br /> 3 »so 3cx� zi++ �^"�
<br /> 4 G(Kl 37S :S6 .������
<br /> - � c:� �� o gailons (sce p��es C-3 or C-5) s '`� �;0 ��° ��
<br /> G I vrX) 525 312 � Tli��� �
<br /> 7 IC50 6iX) ' �7p �
<br /> R 12c�0 675 AUK �.��;„n
<br /> G SOILS (refer to site evaluation)
<br /> '"1 t. Scplic l��ak C�y.cil:�ti{n y�il��n. I
<br /> 1. Depth to restricting ]ayer = r � -�- -�- ,>>, i�ul�es ,ur,� ,. ^,,n:n,un�., u,� �,,U,. y �„ �
<br /> 2. Depth of percolation tests = 1 .� " i�ulles ':'.'�;;;,,,,,_ �<<��+-�Mm� �.������Y4 a•��,��'�"M1;�,�
<br /> 3. Percolation rate �-s . �'��� 2 nr k�s �u, �,�s I
<br /> � m�i
<br /> r ,�.� �nr� ,vK, �
<br /> 4. Land slope � �_,�-�'-�,r� °Io ''"� ,�" ;:",
<br /> 1,N nr 9 2iAl� NM��
<br /> mcr 9 •-'...
<br /> D. ROCK LAYER DIMEI��SIONS ;
<br /> 1. Multiply f]ow rate by 0.83 to obtain mc�uired area of rock �
<br /> layer: Daily r;ow x 0.83 = ,, �
<br /> �-1.�'o gpd x 0.83 sq. f t./�Pd = ?,�y sc�. Ft.-��o"'�, '-� �� �
<br /> 2. Select width of rock iayer (10 feet or less) _ � �� _ ft. '
<br /> 3. Length of rock layer = Area i Width = �
<br /> �-Il 0 sq. ft. y J n ft. _ � ft. Rock L�a '
<br /> � � }:: '�'�'�'�'�' 'J• '� • .� :�idth Si0(t.
<br /> E. ROCK VOLUME ��''—�'���.�;h' '.'�—�1
<br /> � I
<br /> 1. Multiply rock area by rock depth to get cubic feet of rock; I
<br /> �,�„ sq. ft. x ,��<;"ft. _ �a�,�� cu. ft.
<br /> 2. Divide cu. ft. by 27 cu. ft./cu. yd. to get cubic yards;
<br /> ��:-,:� cu. f t. 127 = �_ cu. yd.
<br /> 3. Multiply cubic yards by 1.4 ta get weigllt af rock in tons;
<br /> I
<br /> � cu. yd. x 1.4 ton/cu. yd. _ <�� tons.
<br /> F. ADSORPTION WIDTH
<br /> Absnr�>tion�'idlh Sizin 1'ablc
<br /> 1. Percolation rate in top 12 inches of soil is '�,�� mpi ' K i
<br /> I'crcolotion Rmc I Gait�ns Hu��o nf I
<br /> 2. Select allowable soil loa�g rate from table on page E-; ���4inutc��u;r s���r�x��« �,��„Y,�� Al+a�rpi�on w•idil�
<br /> Z Inch lMYlj syu��c funi u�Rixk l.aycr I
<br /> �Pd/f t „�,�,��,
<br /> 3. Calculate adsorption width ratio by dividii�� roc:: ;ayer �����«��„no.�• c�:��ks�,�+ ..--_ j ..... i
<br /> o.iu�s s,,,�i i.�o � � ;
<br /> loading rate of 1.20 gpd/f tz by allowable soil loading ra;e; o.<<�s•� Fine�and•• ac� .:�,; ;
<br /> 1.20 gpd/ftzi .� gpd/ftz- .. • y . 6�015 S�ndyLnain o.�� �.<i �
<br /> _ 7 i�s�„�n t.o,�n, .o.� �.cK� �
<br /> "�11 ioc5 _ Sililnam O.SO� 2.aq '
<br /> Check this valuc on pab'c E-16. «,`';°12„_ c'"c�Y"'" o:i4 s��, �
<br /> 4. Multiply adsorption width ratio by rock layer width to get 5��;��;;;A^ c��r . .... --.-. !
<br /> required adsorption width; � I
<br /> � , � x ) n ft = � � ft '
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