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GRONBERG & ASSOCIATES, INC. <br />SURVEYING, ENGINEERING AND LAND PLANNING <br />445 N. WILLOW DRIVE <br />LONG LAKE, MINNESOTA 55356 <br />YCL-4/3-4141 <br />F.V . 952-473-4435 <br />5639 <br />THONIAS & KRISTEN RITCHIE <br />PERbJEABILITY ANALYSIS NEAR PROPOSEDGRASSPAVE DRIVEWAY AREA <br />JUNE 22, 2007 <br />TEST HOLE NO. 1 <br />TIME <br />MEAS. <br />DROP <br />PERC. RATE <br />10:50 <br />5 5/8" <br />11:20 <br />6 5/8" <br />1" <br />30 MPI <br />11:50 <br />7 1/2" <br />7/8" <br />34.3 MPI <br />12:20 <br />8 3/8" <br />7/8" <br />34.3 MPI <br />34.3 Min. per inch = 1.75 inches per hour <br />TEST HOLE NO. 2 <br />TIME <br />MEAS. <br />DROP <br />PERC.RATE <br />10:51 <br />6 3/8" <br />11:21 <br />7" <br />5/8" <br />48 MPI <br />11:51 <br />7 1/2" <br />1/2" <br />60.0 MPI <br />12:21 <br />8" <br />1/2" <br />60.0 MPI <br />60Min. per inch = 1 inch per hour <br />