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CERTIFICATION NO.627 <br /> STATE LICENSE NO.394 <br /> PERCOLATION TEST DATA SHEET <br /> Percolation test readings made by S-P Testing,Inc. on 5-16-03 starting at 10:01am. <br /> Test hole location MN/DOT, 1200 Orono Oaks Dr.,Parcel 92E, Orono. <br /> Test hole numbed. Date test hole was prepared 5-15-03. <br /> Depth of hole bottom 12.inches. Diameter of hole li inches. <br /> SOIL DATA FROM TEST HOLE <br /> DEPTH,INCHES SOIL TEXTURE <br /> 0 - 6" Topsoil dark brown loam <br /> 6" - 10" Gray brown clay loam <br /> 10" - 12" 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 5-15-03, 9:30am. 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 li 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 /> 10:01 10:31 6 1-5/8 18.5 30 min <br /> 10:38 11:08 6 1-5/8 18.5 30 min <br /> 11:09 11:39 6 1-5/8 18.5 30 min <br /> Percolation rate= 18.5 minutes per inch. <br />