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TAO 1 <br /> LIQUID LEVEL DATA <br /> SHELL SERVICE STATION <br /> 6131 PACIFIC AVENUE,STOCKTON,CALIFORNIA <br /> (Manuilivnentsin feet) <br /> Depth to <br /> Reference Floating Thickness of <br /> Monitoring Elevation Depth to Liquid Groundwater Floating Liquid Well <br /> Well Date (top of casing)' Groundwater Hydrocarbons' Elevation Hydrocarbons Depth <br /> MW-1 02/26/921*1 10159 5475 — 4684 --- 8460 <br /> 05/12/92** !d d5'`� 5598 — 4561 --- 64 70 <br /> 07/08/92** ( 5669 — 4490 — 6460 <br /> 10/15/92** 5789 — 4370 --- 6460 <br /> 01/11/93*** 5589 -- 4570 — 6462 <br /> 04/28/93*** 5324 --- -w5b Y?�3 s — 6480 <br /> MW-2 02/26/92** 10033 5439 — 4594 --- 6480 <br /> 05/12/92** 5560 -- 4473 — 6490 <br /> 07/08/92'* 5634 — 4399 --- 6480 <br /> 10/15/92** 5754 — 4279 --- 6480 <br /> 01/11/93*** 5554 — 4479 -- 6477 <br /> 04/28/93*** 5288 — 4745 --- 6474 <br /> MW-3 02/26/92** 10165 5565 5564 46 01* 001 — <br /> 05/12/92** 5695 5694 44 71* 001 --- <br /> 07/08/92•* 5768 5767 43 98* 001 --- <br /> 10/15/92** 5995 5849 42 80* 146 -- <br /> 01/11/93***# 5724 5704 44 06* 02 — <br /> 04J28/93***#i 1 5458 5438 47 22* 1 02 — <br /> NOTES 1 Measurement and reference elevation taken from notch/mark on top north side of well casing <br /> 2 Elevation referenced to an arbitrary benchmark <br /> - Not measured <br /> " - Corrected groundwater elevation Reference elevation-CDTW CDTW-DTW (SP G x LHT) <br /> CDTW-Corrected depth to water <br /> DTW-Measured depth to water <br /> SP G -Specific gravity unweathered gasoline-0 75,diesel-0 80 <br /> LHT-Measured liquid hydrocarbon thickness <br /> Data collected by EMCON Associates of Sacramento California <br /> Data collected by Blaine Tech Services Inc of San Jose California <br /> Well Depth - Measurement from top o1 casing to bottom of well <br /> 1 - Floating liquid hydrocarbon skimmer In well Measurements collected after skimmer removal <br /> Aegis Environmental,Inc <br /> 90-020/June 21.1993 <br />