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Trench and Bed Worksheet <br /> All box d rectangles must be entered,the rest will be calculated. <br /> 1. AV RAGE DESIGN FLOW r A•l: i:�f�nafed Sev►age Fiov�in C�dians p�Day ' <br /> A. stimated 750 gpd(see figure A-1) ;-�-��---, f � ; —' <br /> r measured x 1.5(safety factor) = 0 gpd ; bedroarrs � Qass I � aass II ; C7oss�I{� Q�s IV � <br /> B. eptic tank capacity 2-1300 gallons(compartrnented) � q � 3�� ; �2a � ?� s �1� ; <br /> ; 3 � �.J ' �� ; 21S c�th: i <br /> -1: Se i�'f�nk('� �riiie4 i in��llans; � a ` �'�� ` ��� � ��5 ' �;G:�c� : <br /> ; . <br /> ; 5 ; �� I �0 � 24: � i�-th� , <br /> < <; �17���� ; � ; c�ry I +.25 ; 337 �':rss; <br /> .i'UI�I��Cf�; �1�lUl:!' �I '_..(yi:!(i �..0��� ��ltli� �51Y�1 ,111h�:'sti.7+,�5.lo��C� � ] 1C�� E�� ��� ; �I 0��II <br /> C(�::wt:l� '.'.l(::1�:'!; ;I S �ti���c'•:5.�(s1: ;l1 '....._.�..._,,....... IdJ ; ��77 ; ��J�S ? �c um�a <br /> ' �I�'L,.+I .._..�,...�........�_..,__..._......_.�.. <br /> L (��SS ti�� 1�:� �, .�,.._.....Y.,.._.. ..,,�.. .�.�..,...........,....� <br /> �• <br /> �!�.�"! �Jui,l .y�J�� �,�,,.�, :�.� �_: ::C:U<_�1,71]t�.E:"::.U... 3llt� 4C:1��-'I� �, <br /> '+lC`7 �`t,'a G4ji) . ,� la-irn(ti�F?S=- :�:wr�a:a�cn1 <br /> , <br /> � K � �• ; ' ,crca�a.ionlcat� 4�.I:.�.ii F r���.ar <br /> �T � ..a.;U IJi�f) <br /> ... ,c. ...::i: 1:,i1 L-t':ue t. .- <br /> ... .. i:. __... ' <br /> 2. S01 S(Site evaluation data) � .. - - "' . � . <br /> C. epth to resficting layer= 4.8 feet � '-'. " <br /> , :,. ._ . <br /> D. aximum depth of system Item C-3 ft= 1.8 feet "� �� <br /> E. xture Clay Loam ;'- � � - ��� <br /> rcolation rate 12to48 MPI . � , <br /> F. F 2.2 ftz/gpd(see figure D-15) . ;�' <br /> G. ° Land slope 8 % <br /> 3. TR CH OR BED BOTTOM AREA ;�,� _ _ : � � � <br /> H. F r trenches with 6 inches of rock below the pipe: � � � � � • '- � - <br /> x F= 750 gpd x 2.2 fflgpd = 1650.0 ft2 <br /> I. F r trenches with 12 inches of rock below the pipe: <br /> x F x 0.8= 750 gpd x 2.2 ff/gpd x 0.8 = 1320.0 ftz <br /> J. F r trenches with 18 inches of rock below the pipe: <br /> x F x 0.66= 750 gpd x 2.2 ft/gpd x 0.66= 1089.0 ftz ��v���G�� <br /> K. F r trenches with 24 inches of rock below the pipe: �'�"'��� �����a��� <br /> ��Q���Q���i���i�. <br /> A x F x 0.6= 750 gpd x 2.2 ft/gpd x 0.6= 990.0 ft2 <br /> L. F r gravity beds with 6 or 12 inches of rock below the pipe; <br /> 1 5 x A x F= 1.5 x 750 gpd x 2.2 fflgpd = 2475.0 ftz <br /> F r pressure beds with 6 or 12 inches of rock below the pipe; <br /> A x F= 750 gpd x 2.2 ffigpd = 1650.0 ft <br /> 4. D STRIBUTION(Check al!that apply) <br /> Bed(<6%slope) X Drop Boxes(any slope) X Rock <br /> X Drop Boxes(any slope) Distribution Box(<3%) Chamber <br /> Pressure X Gravity Gravelless <br />