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� `� '' MOUND DESIGN tiVORKSHEET <br /> • � (For Flows up to 1200 gpd) <br /> A. FLUW E�thueee s.w.te F1o.+in cal�«u pa�,r ctA� <br /> Estimated a v o gpd N�(� 'lyps� 7yps 11 lype IU 7ype n+ <br /> or measured — x 1.5 a — gpd. 8.�++ <br /> z �oo �s �eo b. <br /> � �so aoo zia •� <br /> B. S�TIC TANK LIQUID VOLUMES ' s � ;� � '� <br /> a—�0 D C7 g�021S 6 90o S2S »2 "' <br /> 7 1QS0 600 370 rr„ <br /> e 1200 67S �Ot <br /> C. SOIIS(refer to site evaluation) �� ,� N� ,,�,�,,,, �„� <br /> 1. Depth to restrict3ng layer� i� -�o�ti.inches eid„� ;�, <br /> 2 Depth of peraolation tests= .=inches `� `'"`° <br /> 3. Peroolation rate �.� .s' mpi �a.�'� i.o i'.'s o <br /> 4. Land slope �-1 °10 ��i '�,030000 � <br /> e�.s s«e�.c.s c�is� <br /> D. ROCK LA,YER DIlvlIIVSIONS <br /> 1. Multiply flow rate by 0.83 to obtain required azea of rock <br /> layer:A x 0.83 a �� <br /> "oo • gpdx 0.83 sq.ft./gpd= 49 t� sq. ft.+Jo�oSy� <br /> 2 Select width of rock layer(10 feet or less) _ �o ft. <br /> 3. L,ength of rock la.yer=area+width= Rcck Bed <br /> �sq. it.+ �n ft. = s� ft. , , ,,., <br /> �t f <br /> ; �;�� dth S]0 ft. <br /> .ti <br /> ,� . <br /> �� .i7 ♦ ?r?f` <br /> E. ROCK VOLUME ~— �"�' —�' <br /> 1. Multiply rock area by rock depth to get cubic feet of rock; <br /> ,S�,Z Sq.ft.X 1.-0�ft. _ �� Cu. ft. <br /> 2. Divide cu.ft.by 27 cu.ft:/cu. yd. to get cubic yards; <br /> �cv,f� +27=�_cu. yd. <br /> 3. Multiply.cubic yards by 1.4 to get weight of rock in tons; <br /> �cu.yd.x 1.4 ton/cu. yd. _,�tons. <br /> F. ADSORPTlON WID1'H �u�s L o►�--w► ne. en Wldd�Sl�+ L!k <br /> 1. Percolation rate in top 12 inches of soil is.,,��mpi r�a.u�,wM ,:°�, ;,;►� <br /> M�+�r,�, Soi1 Texture ,.�,T,,. .,«,� <br /> 2. Select allowable soil loacling rate from table; Fasc�c��,o.i oan�s�nd 1.20 l.00 <br /> d/ft� 0.1 to5 Sand ��0 1.00 <br /> •4� $P 0.1 to 5 Flne Sand" 0•� 2•� <br /> 6 to 15 ndy Loam 0.79 ]S2 <br /> y 16 to 30 Loam 0.60 2.00 <br /> 3. Calculate adsorption width ratio by dividing rock layer 31 to as suc t,o�m oso 2,ao <br /> loading rate of 1.20 gpd/ft2 by allowable soil loading rate; 6'��i� �'���' oz4 s:oo <br /> 1.20 gpd/ft�+ •u�gpd/ft�_ �.l.;L. stower chsa 120 C1a - - <br /> "ldllrvM6!0�at man d An�ar vey Rix iand <br /> 4. Multiply adsorption width ratio by rock layer width to get <br /> required adsorption width; <br /> �•L� x_L_ft=�_ft <br />