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<br />~. <br /> <br />2 <br /> <br />, <br /> <br />field disposal system is 5 to 70 minutes per inch, In areas where the <br />percolation rate is faster than five minutes per inch or the water <br />table is less than four feet below the bottom of the leaching field, <br />an on-site aerobic sewage treatment tank followed by a tablet chlo- <br />rinator and leaching field should be installed in lieu of a septic <br />tank and leaching field, <br /> <br />The percolation test results presented in this report should be used <br />only for general reference, Four to six percolation tests should be <br />performed on each proposed leach field site with one additional hole <br />extending to a depth of eight feet below the ground surface to check <br />for groundwater and the results of these specific tests used to design <br />the on-site sewage disposal system. <br />