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TABLE 1 <br /> (continued) <br /> GROUNDWATER POTENTIOMETRIC ELEVATIONS <br /> Jackpot Food Mart <br /> 14000 East Highway 88 <br /> Lockeford Cali ornta <br /> WELL DATE TOP OF CASING DEPTH TO DEPTH TO GROUNDWATER ELEVATION CGWE <br /> ID SAMPLED ELEVATION(1) PRODUCT WATER ELEVATION CHANGE <br /> FEET FEET FEET FEET FEE FEET <br /> 07119/96 10051 NP 6770 3281 <br /> 12/19196 NP 66 90 3361 080 <br /> 02/26197 NP 7720 2331 -1030 <br /> 04116/97 NP 7700 2351 020 <br /> 07/14/97 NP 7649 2402 0 51 <br /> 10113/97 NP 7646 2405 003 <br /> 01127198 NP 7696 2355 -050 <br /> 04127/98 NP 7613 2438 083 <br /> 08113/98 NP 6659 3392 954 <br /> 10126/98 NP 7505 2546 -846 <br /> 01127/99 NP 7542 2509 -037 <br /> 04/26/99 NP 7571 2480 029 <br /> 07114/99 NP 7506 2465 -015 <br /> 11124!99 NP 7679 2372 -093 <br /> 02117/00 NP 7689 2362 -010 <br /> 06101/00 NP 7636 2415 053 <br /> 08118/00 NP 7687 2364 -051 <br /> 11103/00 NP 7501 2550 186 <br /> NOTES <br /> NP = Not Present <br /> CGW E= Corrected Ground Water Elevation <br /> a) Groundwater elevations corrected where free product was observed,using the equation <br /> Cge =Oge+(PT x SgP)where <br /> Cge=Corrected groundwater elevation <br /> Oge =Observed groundwater elevation <br /> PT = Product Thickness <br /> SgP = Estimated specific gravity of free phase gasoline=assumed specific gravity <br /> Initial survey conducted on 1/19195 for monitor wells MW-1 through MW4 with an <br /> arbitrary datum of 100 feet assumed at the southeast corner of the underground storage <br /> tank concrete pad Monitor wells MW-5 through MW-10 were surveyed on 07119/96 <br /> the some southeast corner of tank pad <br /> Trne%LockefordTablel As <br /> 4 <br />