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11�02%93 13:59 F�� 6124fl75u11 S P TESTItiG INC f�06 <br /> ' ' MOUND DESIGN WORKSHEET <br /> (For Flowe up to 1z00 gpd) <br /> A. FLOW E�s.�Fro.,�a.u�oa a., <br /> Estimated,�_gpd r�. typs �a t�m � <br /> or measured -- x 1.5 = '^ gpd. <br /> ) 1�0 � I'1 60�i <br /> B. SEPTTC TANK LIQtTID VOLLJMES 4 '0D �' � � <br /> f-l�� @- IoaO —�OILS 6 �90�0 � 7�7'= �'bPt <br /> i 7 IOSb dOD 770 0 a <br /> � � ` izoo ��s .o� � <br /> C. SOIIS (refer to site evaluation) , <br /> �.. Depth to restrieting layer=_ 1�S inches feet ��� <br /> II�n f fYl��LMr1 �i'� YR IJw <br /> 2. Aepth of percolation tests= 1�4 ��s " inches '.•—. � °""'''"" <br /> 3. Texture �u� �o Percolation rate�_mpi 's W ;� �,� ;� <br /> �. Land slope.—.�% ,.`.. '�° '�° .°°° i <br /> D. ROCK YER SION � <br /> 1. Multiply flow rate by 0,83 to obtain required area of rock layer.A x Q.83= <br /> �S� - gpdx0.83sq. ft./gpd =��,sq. h. <br /> 2 Select width of rocic layer(max J.0' if<120 mpi max 5') = . /�� ft. <br /> 3. Length of rock layer=area+width= „�,� � � _ - <br /> � .��,sq. ft. �. �_ft.��..h �f .. ►.� �� <br /> � <br /> Width.��^ft <br /> <120mpi <IO' Length r�z ft <br /> >120mpi <S' <br /> E. ROCK VOLUMfi <br /> 1. Multiply ro�lc area by rock depth ta get cubic feet of rocic;�sq. Et x,(zQ,t <br /> ft. _�.�,cu. ft. <br /> 2. Divide cu. ft.by 27 cu. ft/cu.yd, to gei cubic yazds; <br /> �cu. ft. �27=.�?�cu.yd. <br /> 3. Multip�y cubi�yards by 1.4 to get weight of rocic in tons;�cu• yd• x 1.4 <br /> ton/cu.yd. =� tons. <br /> �. AB�R��N�'� At�tlee WLba 6�T1bk <br /> 1. Percolation rate in top 12 inches of soil is��mpi ���; �17�. �" �� <br /> Texture_r–�-�c L.o�a-w� .�� u,�.r�, <br /> r.�.a..ai a•�.a.ee i�o �.00 <br /> aid� s.a iso i.00 <br /> 2, Select allowable soi�loading rate from table; `;,� ��„ Q;; � <br /> •..� $Pd�� ii�a t�,o.. 0.'�0.+o ib <br /> .�.�o C��... au �� <br /> • - 60�s 120 d0 0,2� �.00 <br /> 3. Calail,ate adsorp�ost width iatio by diviciing rxk layet a''�'•••"° c.�., oso aoo <br /> loading rate of 1.20 gpd/ft2 by allowable�soil Ioadirtig rate; <br /> i.20 gpd/ft2+ .,u,�gpd/fi�� . a,c, . <br /> �. � Multiply adsorpt�an width raho by rock Iayer width to get <br /> required adsorptirnn width; <br /> �,L'� X l�ft=�-ft <br />