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IL z AIL MUM Arft <br />NORTH AMERICAN TECHNICAL SERVICES, INC <br />PERCOLATION TEST DATA SHEET <br />PROJECT: 183 S Austin Rd, Manteca <br />PROJECT No: <br />22-2826 <br />DRILL DATE: <br />11/17/2021 <br />TEST HOLE NO.: <br />P-1 <br />TESTED BY: <br />A. Krause <br />TEST DATE: <br />11/19/2021 <br />DEPTH OF TEST HOLE (ft), Dt: <br />3.0 <br />CLASSIFICATION: <br />(USCS) <br />Light brown, dry, silty fine sand (SM); NFGWE <br />DIAMETER (inches)= 6.0 <br />PRE -SATURATION 11/18/21 <br />Date <br />Start Time <br />Stop Time <br />Time Interval <br />(min) <br />Initial Depth of <br />Water (in) <br />Final Depth of <br />Water (in) <br />Change in Water <br />Level (in) <br />Comments: <br />11/18/2021 <br />12:00 <br />12:20 <br />20 <br />12.0 <br />6.0 <br />6.0 <br />11/18/21 at 12:20 <br />11/18-19/2021 <br />12:20 <br />12:20 <br />24 hrs <br />36.0 <br />0.0 <br />36.0 <br />added 36" water, no <br />TEST MEASUREMENTS 11/19/21 <br />Trial No. Start Time <br />Stop Time <br />Time Interval <br />(At) <br />(min) <br />Initial Depth of Final Depth of <br />Water (H) Water (Hr) <br />(in) (in) <br />Change in Water <br />Level (AH) <br />(in) <br />Percolation Rate <br />(minute/inch) <br />1 1:35 <br />1:45 <br />10.0 <br />6.0 5.00 <br />1.00 <br />10.00 <br />2 1:45 <br />1:55 <br />10.0 <br />6.0 4.75 <br />1.25 <br />8.00 <br />3 1:55 <br />2:05 <br />10.0 <br />6.0 4.75 <br />1.25 <br />8.00 <br />4 2:05 <br />2:15 <br />10.0 <br />6.0 5.00 <br />1.00 <br />10.00 <br />5 2:15 <br />2:25 <br />10.0 <br />6.0 5.00 <br />1.00 <br />10.00 <br />6 2:25 <br />2:35 <br />10.0 <br />6.0 5.00 <br />_ <br />1.00 <br />10.00 <br />7 2:35 <br />2:45 <br />10.0 <br />6.0 5.375 <br />0.625 <br />16.00 <br />8 2:47 <br />2:57 <br />10.0 <br />6.0 5.25 <br />0.75 <br />13.33 <br />9 <br />10 <br />11 <br />12 <br />13 <br />14 <br />15 <br />16 <br />17 <br />18 <br />19 <br />20 <br />Comments: Final Steady Percolation Rate = 13.3 MPI; Test Hole Backfilled 11/19/21 <br />See attachment for conversion to gal/sf per day <br />