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CERTIFICATION NO.627 <br /> STATE LICENSE NO.394 <br /> PERCOLATION TEST DATA SHEET <br /> Percolation test readings made by. -P Testing,. on 5-15-03 starting at 10:06am. <br /> Test hole location MN/DOT, 1230 Orono Oaks Dr.,Orono. <br /> Test hole numbers.. Date test hole was prepared 5-14-03. <br /> Depth of hole bottom 12 inches. Diameter of hole fi.inches. <br /> SOIL DATA FROM TEST HOLE <br /> DEPTH,INCHES SOIL TEXTURE <br /> 0 - 6" Topsoil dark brown loam <br /> 6" - 10" Gray brown loam <br /> 10" - 12" Yellowish brown clay loam <br /> Method of scratching sidewall is knife. Depth of gravel in bottom of hole is 2 inches. Date and hour of initial <br /> water filling 5-14-03,4:00pm. Depth of initial water filling is 12 inches above the hole bottom. <br /> Method used to maintain at least 12 inches of water depth in hole for at least 4 hours is automatic siphon. <br /> Maximum water depth above hole bottom during test is fi.inches. <br /> Measurement, Drop in water level, Percolation rate, <br /> Time Time interval,min inches inches minutes per inch Remarks <br /> Water remaining in test hole <br /> 10:06 10:36 6 1-1/2 20 30 min <br /> 10:41 11:11 6 1-1/2 20 30 min <br /> 11:14 11:44 6 1-1/2 20 30 min <br /> Percolation rate=20.0 minutes per inch. <br />