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, tNll1V117UAL SEWAGE TREATMENT SYSTEM WORKSHEET 1 <br /> �— - <br /> FLOW � Esuma[ed Sewage Flows in Gallons per day � <br /> � d) <br /> A. Estimated �a gpd Number Ty�i T.�u 7y�m T� <br /> measured x 1.5= gpd , or � � (� ' <br /> SEPTIC TANK VOLUME ''�100"u ! ' <br /> B. �'—/��� gallons �' z 30o I zas ►so <br /> a 300 2is 60�` <br /> � 600 375 u6 oi the �' <br /> SOILS (Site evaluation data) '� o. aso z9a ���;g i <br /> C. Depth to restricting layer= �' feet ; 6 �oo i s2s 332 r.�i. � <br /> , 7 1050 I 600 370 <br /> D. Maximum depth of system C-3 ft= Z- feet s i2oo i 675 aos °n` <br /> E. Texture�z�►'f� Percolation rate /—S`^ MPI ; `o�"�"� ' <br /> F. SSF lrZ.7sqft/gpd <br /> G. Slope�_% se uc Taok ca eiues ro n��unc� <br /> GywJ capauty <br /> Numlxr of �linimum Liywd Liywd c�ity with wiih Jrspnsnl& <br /> TRENCH BOTTOM AREA Bedn��ms Capm:ity garbage dispusal lift ms�Je <br /> �ur 750 �iW <br /> H. For trenches with 6 inches of rock below the pipe: " „�, �� ,s :uou <br /> ���� ,soo ��xx� <br /> A x F= x = sq ft of bottom area ,.x�,,v �cxx, scxxi ��K,u <br /> I. For trenches with 12 inches of rock below the pipe: <br /> A x F x 0.8=��x�x 0.8=�sq ft of bottom area Soil Characteristics and Required Areas <br /> J. For trenches with 18 inches of rock below the pipe: for Sewa e Treatment <br /> A x F x 0.66= x x 0.66= sq ft of bottom area Percolation Rate in Square <br /> K. For trenches with 24 inches of rock below the pipe: M�nu�a Pe�incn Soil Ttxture feet per eallon <br /> A x F x 0.6= x x 0.6= sq ft of bottom area �Mp�� per day <br /> BED BOTTOM AREA Faseer than o.t' Coarse Sand --- <br /> O.l to 5 Sand 0.83 <br /> L. For seepage beds with 6 or 12 inches of rock below the pipe; ��Q1��@3— Fine Sand•• <br /> 1.5 x A x F=1.5 x x = s ft of bottom area 6 to is_,? Sandy Loam ' L27 <br /> q to 0 Loam 1.67 <br /> � 3!to 45 Silt Loam 2.00 <br /> ROCK VOLUME IN CU FT ��0 6o C�ay[.oam �.?0 <br /> Slower than 60"' Clav ----- <br /> M. Rock depth below distribution pipe plus 0.5 foot times bottom area: } Soii too coarse tor szwagc treacmen[. <br /> M=Rock depth+6 inches x Area(H,I,J,L,K) Use systems for rapidly pertneable soils. <br /> ( +0.5 ft)x = cu ft �• Soii having 509b or more of fine sand <br /> �„plus very fine sand. <br /> ROCK VOLUME IN CU YDS Soil with too high a percentage of clay for <br /> N. Volume in cu ft divided by 27 <br /> installation of an inground standard system. <br /> M=27=cuyds_=27= cuyds <br /> ROCK WEIGHT 6 inches= 0%Reduction* <br /> O. Cubic yazds times 1.4= tons 12 inches=2U%Reduction <br /> N x 1.4=tons x 1.4= tons 18 inches=34%Reduction <br /> 24 inches=40%Reduction <br /> SYSTEM LENGTH *sizing for gravelless trench <br /> P. Select trench width= � ft <br /> Q. Divide bottom area by trench width: (H,I,J,or K)=P= <br /> lineal feet ' � Geotextile Fabric <br /> _ �saa��oaa e� e � a.� a QaQd i <br /> lineal feet ooyOOo oo;oay0,000�oo�'.e 2��RockCover <br /> Ql. Gravelless Design qaaorod°a�:aQ ar.� ° ' <br /> 0000o eb.. a.. 000�o.e <br /> p Qaod°C . Q0000. <br /> A x F=(3 for 10"pipe,2 for 8"pi e,width of the Chamber) �ao op'" vd o 0 90 0 <br /> rp�x +Z -��-��feet C 2�v� ,o aQ a: o s�o00 4"Dist.Pipe <br /> c <br /> B.;o.o.e8�o. ��oo9�e;9 <br /> qaocio-.,.o,. .as o a oas o <br /> p o;w,pDOD <br /> �0�°Op°" � 6Qp.°' R o 0 <br /> LAWN AREA �a,.;o, o 00o e, �o oeQO bOo�Do <br /> 0 <br /> R. Splect trench spacing,center to center= feet op°p o�ov°a�a,ao ao°p,Qo°o <br /> Qoo:�e r o-..r e oa�Q�Qo o:o <br /> S. Multiply trench�pacing by line feet R x Q=sq ft of lawn area oo�a���ap���^o°�' °°�o <br /> ��;�_%�Sq ft Q � � a � � �o� 6-24" Rock <br /> o peo oa;o�epoi�o�Do�De�08 <br /> p°O�6 � �Od� Op�O dC <br /> oe,ponb sb o .ppD so oeo <br /> ao.o 6ao0pa pOa° o dp n <br /> - DOopQpoBao�ooQDo o�Oo�Ooo:o 3/4-21/2 <br /> LAYOUT(Use other side) o;o;sa ea;o�,00�b o��aD nD� <br /> 1.Select an appropriate scale;Orie SC1UdIe= feet. � o a o�e�o,�opD a�;000 a,poea o <br /> ddo.00000•o�e e gp�oQQoaq, <br /> 2.Show pertinent property boundazies,right-of-way,easements. �'nb°°o°ep;^�o�e:a:o,o�o0 <br /> ao oa�n.Qe'o o aoa�n0 oa. <br /> 3.Show location of house,garage,driveway,and all other <br /> improvements, existing or proposed 18-36"Width <br /> 4.Show location and layout of sewage treatment system. <br /> 5.Show location of water supply well. <br /> 6.Dimension all set backs and separation distances. 96�2»T�e <br />