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11I16/2005 13:39 3202382343 HENTGES pAGE 66 <br /> . 1STS DESIGN WORKSHEET �Rodc trench, p�vel�e��nch, �Seapage b�de) <br /> A. Flow: 750 gpd <br /> B. Septic �enk v�olurr�; 300� <br /> �. Si6e E+raluation informa�ion <br /> 1. Depth tp restricting layer 52.00 inches or 4.33 fee# I <br /> 2. Oepth of percolation tegts � 9� inches ', <br /> 3. 5oil Texture S - Loam <br /> 4. Per�. Rate 14 mpi <br /> 5, l.and Slope 5.0 peroent <br /> 6. Soil Slzing F�ctor �,67 <br /> IL CHARACTERISTlGq qND REQUIi�DAREAS FOR SEWAGE TREATMENT <br /> h�RC RATE TFXRJHE SQ FT/GPD PERC RAYE TFXitJRE SO FTlGPD <br /> a Q_� CS.SAiVb 16-30 IOAM 1.6T I <br /> 0.1-5 SANO O.B3 31-4$ SILT LpMA 2.� <br /> R7-S RNE 36WD 1.67 d6-9D CI1�Y LOAM 2.20 <br /> e-15 D�Y 1,�'P �BO CLRY <br /> 7. Ma�amum trench depth 16 inch@s <br /> 8. Trench widt� � {�t <br /> 9. Trench spacing 6 <br /> 10. Trench cover �� ���e8 <br /> 11. Choose type of system �# value <br /> � ROCK= 1 B"SB2 = 3 HAhB�R a 5 12"ROCK,NO R�bUCT_� <br /> 1Z ROCK= 2 1�S62= a � g <br /> D. �esign; Trench bQt�om area: <br /> 1. For rock lrenches with 6 inches Qf rock b�1ow the pipe: <br /> A x C6� X _____� �quals __`___sq, n o�bottom area <br /> 2. For rodc tronches��ith 12 inches s�f rock below the pipe: <br /> �► x �6 x 0.80 = X � X 0.8 = ��sq. f� ���a� <br /> �� <br /> 3. For 12 �n�h rock trench with NO r�►duction: <br /> A x Cs = X �M eque�l$ sq_ ft of bottom area <br /> 4. For B inch diamefier gravelless pfpe: <br /> � x C6 �� �( � ,�Q���s �sq_ R oF bottom area <br /> 5. For 10 inch diam�t�r gravelless pipe: <br /> A x C6 = x equals sq. f�of bot�om area <br /> � <br /> 6. For 3Q inch wide, fi lnch louvered sidewall chamber system: <br /> A x C6= 7� � � �Quals 1252_SO �q, R of bottom area <br /> 7. For seepage ���th 6 or 12 in�hes of rc�k below the pipe: <br /> A x �6 x 1.50 M ,� x __�___��X 1.5�_ �q. ft bcttorrs �rca <br /> P� 3 OF 1p <br /> 9 'd Z6l '0�l �lNddWO� J���38NHa WH00 � l l SOOZ '8 '�3a <br />