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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) (msi) Thickness' Interval Interval Interval <br /> (ft) <----------------feet below grade------------------------- > <br /> MW-5 9/5/90 5474 1251 -4223 0 49 - 69 46 - 69 0 - 46 <br /> 11/29/90 55 02 -4251 <br /> 3/14/91 5525 -4274 <br /> 5/6/91 5511 -4260 <br /> 8/29/91 5577 -4326 <br /> 12/6/91 5458 -4207 <br /> EXPLANATION NOTES <br /> DTW= Depth to water TOC e1nations were surveyed by Ron Miller, Licensed Land Surveyor CE <br /> TOC =Top of casing elevation 415816 on September 5, 1990 <br /> GWE=Ground water elevation <br /> msl= Measurements referenced relative to mean sea level Monitoring well locations and ground water elevation contours are shown on <br /> Figure 2, (Appendix A) <br /> Product thickness was measured with an MMC(lexi-dip interface probe <br /> 4604T WL <br /> i <br /> I <br />