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� • . <br /> , � <br /> Percolation Test Data Sheet for hole#2 <br /> Test hole location: 30 Orono Orchard Road, Orono,Mn. <br /> Date test hole was prepared Au�ust 26, 1998 <br /> Depth of hole bottom, 12 inches Diameter of hole=6 inches <br /> Soil Data from Test Hole <br /> Depth, inches Color Texture <br /> 0— 12 10YR312 Clay Loam <br /> Sidewalls scratched with a stick with nails. Depth of pea rock in bottom of hole was 2". <br /> Hole initially filled on August 26, 1998 at @ 9:00 a.m. to 12"above the bottom of the <br /> hole. <br /> An automatic siphon was used to maintain at least 12"of water in the hole for 4 hours. <br /> Percolation test was conducted by DH Excavating. <br /> Percolation tests started on August 27, 1998 at 7:50 a.m. <br /> M�imum water depth above the bottom of the hole during the test was 12". <br /> TIlviE INTERVAL WATER WATER DROP WATER DROP PERC RATE <br /> (MINUTES) DEPTH (fraction) (decimal) CALCULATION <br /> 7:50 Start 12 <br /> 8:20 30 minutes 1 l 3/8 5/8 .625 30/ .625 =48 mpi <br /> 8:23 Refill 12 <br /> 8:53 30 minutes 11 3/8 5/8 .625 30/ .625 =48 mpi <br /> 8:55 Refill 12 <br /> 9:25 30 minutes 11 3/8 5/8 .625 30/ .625 =48 mpi <br /> Perc rate=48 mpi <br /> Ten Percent Calculation <br /> 48 - 48 = 0 If the top number is larger than the bottom number, <br /> largest rate—smallest rate take another reading. If the top number is equal to, <br /> 48 x .10= 0 or smaller than the bottom number,than average of <br /> smallest rate the three rea.dings is the perc rate.Maintenance <br />