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Jerome & Bonnie Wilson Plan View & Cross Section Page 3 of 3 <br /> ObbsservationNent Pipes <br /> Finished Grade= -Q Finished Grade=e e <br /> Slope%_ L� <br /> ®r��" <br /> Original GradeOriginal Grade 43 <br /> Top of ShellSystem Elev. <br /> Treatment and Dispersal Zone <br /> Limiting Factor <br /> Observation/Vent pipes to be constructed and <br /> capped with approved materials for the particular use. <br /> GPD 450 / Load Rate 0.7 = 643 Sq. Ft.- 2 End Caps = 5.8 Sq.Ft. <br /> 637.06 Sq. Ft. / EISA 20.0 = 31.853 or 32 Total Quick4 Plus Chambers <br /> OBERVATION/VENT PIPES <br /> 0 12" INf ILTRATORS <br />