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OLD RIVER GOLF COURSE <br /> Page No. 3 <br /> IV PERCOLATION TESTING <br /> A percolation test was performed in the area of the proposed <br /> leach field. A 24 inch deep by 8 inch diameter test hole was <br /> excavated by hand adjacent to test boring B-3. A 24 inch deep hole <br /> was utilized because it is anticipated that 1 foot of fill will be <br /> placed over the proposed leach field area so that the bottom of the <br /> leach lines will be at least 3.0 feet above the estimated average <br /> ground water elevation of 5.0 feet. Two inches of gravel was <br /> placed in the bottom of the test hole. A 3 inch diameter <br /> perforated pipe was then placed in the hole and backfilled with <br /> gravel. The test hole was filled with water 24 hours prior to <br /> running the test. The last half hour of the test readings were <br /> witnessed by a county health official. The results of the test and <br /> the test data obtained are presented in Appendix B, Percolation <br /> Test Results. The percolation rate was adjusted to account for the <br /> gravel and pipe backfill. Calculations for the adjustment are on <br /> the test data sheet. <br /> V SOIL CONDITIONS <br /> Visual classification of each soil stratum encountered <br /> according to ASTM D2488 (Visual - Manual Procedure) was made in the <br /> field by an engineer at the time the test borings were drilled. <br /> The samples obtained were checked in the laboratory and <br /> classification verified according to ASTM D2487. A classification <br /> and graphical representation of each soil encountered in test <br /> borings B-1 and B-2 is presented on the Log of Boring sheet. A <br /> classification of the soil encountered in test boring B-3 is <br /> presented on the Soil Profile Log, Plate No. 3 . The Test Boring <br /> legend is presented on Plate No. 4. <br /> The soils encountered in the test holes were reasonably <br /> _ uniform between holes but consisted of alternating strata of medium <br /> dense sands and stiff clays. The upper 12 inches was very loose as <br /> a result of the farming operations. For a more detailed <br /> description of the soils encountered in the test borings see the <br /> Log of Boring sheets. <br /> Test boring logs show subsurface conditions at the date and <br /> location indicated and it is not warranted that they are <br /> representative of subsurface conditions at other locations and <br /> times. Ground water was measured at a depth of 5. 0 to 6 .0 in the <br /> _ test holes just prior to backfilling. Ground water depth can and <br /> will vary seasonally. <br /> r OERs y <br /> N <br /> Z W <br /> 1JS G G\ <br /> r <br />