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(D rnrushom <br />ICHWOMO-TIMV11 Arsalytical Laboratory <br />Metropolitan Stevedore <br />P.O. BOX 986 <br />Stockton CA 95201 <br />MONITOR WELL FIELD DATA REPORT <br />MONITOR WELL SAMPLING INFORMATION <br />Sample ID: <br />Project Name: <br />Date Sampled: <br />Time Sampled: <br />Sampler Name: <br />22828-04 <br />Monitoring Well 3 <br />6/23/2003 <br />2:45 PM <br />Jonathan Le <br />MONITOR WELL FIELD DATA MEASUREMENT <br />Casing Diameter: 4 inches <br />11 Volume: 8.52 Gallons <br />Well Depth: 77" <br />Well Water Depth: 208" <br />Purge Vol 1: 8.52 Gallons <br />PH(1): 7.60 <br />EC1 (uS/cm) (1): 2450 <br />02 (mg/L) (1): 0.88 <br />Purge Vol 2: 8.52 Gallons <br />PH (2): 7.70 <br />EC1 (uS/cm) (2): 2520 <br />02 (mg/L) (2): 0.89 <br />Purge Vol 3: 8.52 Gallons Purge Vol 4: 8.52 Gallons <br />7,63 7.61 pH (3) pH (4): <br />Ed 1 (uS/cm) (3): 2600 ECI (uS/cm) (4): 2610 <br />02 (mg/L) (3): 0.87 02 (mg/L) (4): 0.88 <br />Field Note: Each Well was purged of a minimum of three casing volumes and until stabilization <br />measurement of pH and Electrical Conductivity (pH constant within 0.1 units, conductivity with <br />10% of previous measurement). The electrical conductivity/pH meter was calibrated prior to <br />use. After completion of purging, ground water were drawn using a disposable bailer (new bailer <br />for each well) <br />RE PE TF LLY SUBMIT ED, <br />Jo athan H. V. Le, Laboratory Director <br />rsday, July 31, 2003 <br />Page 1 of]