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�` rr <br /> SIERRA <br /> Table 1 Water Level Data and Well Construction Details - Chevron Service Station #9-6171, 6633 Pacific Avenue, Stockton, <br /> California (continued) <br /> Well Date DTW TOC GWE Product Screen Sand Pack Bentonite/Grout <br /> ID Measured (ft) (ft) (msl) Thickness* Interval Interval Interval <br /> (ft) <----------------feet below grade---------------------------> <br /> MW-6 9/3/92 5630 1278 -4352 0 50- 70 48- 70 0-48 <br /> 12/17/92 5522 -4244 0 <br /> 3/17/93 5338 -4060 0 <br /> 6/28/93 5195 -3917 0 <br /> 9/15/93 5247 -3969 0 <br /> 12/29/93 5132 -3854 0 <br /> MW-7 9/15/93 5247 12 692 -3978 0 44 5-64 5 42- 645 0-42 <br /> 12/29/93 5131 -3862 O <br /> EXPLANATION NOTES <br /> DTW=Depth to water TOC elevations were surveyed by Ron Miller Licensed Land Surveyor <br /> TOC=Top of casing elevation CE#15816 on September 5, 1990 <br /> GWE=Ground water elevation <br /> msl=Measurements referenced relative to mean sea level ' Product thickness was measured with an MMC fleet-dip interface probe <br /> ---=Not measured/not applicable Monitoring well abandoned on July 31, 1992 <br /> 2 TOC elevation for well MW-7 was surveyed by Ron Miller,Licenced Land <br /> Surveyor, PE#15816 on September 13 1993 <br /> 14604T WL <br />