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PROPERTY OWNER: <br /> George Lechich, P.O. Box 881, Stockton, CA 95201; (209) 466-5771 <br /> or (408) 372-5473. <br /> C�TAC PERSON <br /> Mike Griffin, (209) 466-5311 <br /> LEGAL _DESCRTPmlO�T_ <br /> Assessor's parcel No. 135-450-23, consistingof approximately <br /> 1/10th of an acre. Refer to tails. <br /> prior .reports for more details. <br /> DEPTH TO GROUNDWATER: <br /> Based upon data from the three monitoring wells on the property, <br /> the water table is about 13. 5' bgl. The gradient is to the <br /> north/northeast, which agrees closely with regional data. <br /> BRIEF Y nv alO W K RMED 0L_TM S T : <br /> �iebruarg� 19$8 - 500 gallon UST which had contained <br /> gasoline <br /> removed from site. A soil sample taken at 13' bgl revealedthes <br /> Presence of petroleum hydrocarbons. Spoil was returned to hole & <br /> no further work done. <br /> F bruary jL=Marc 199 _ Three (3) groundwater monitoring well <br /> were placed on the property as shown on <br /> s <br /> PLAT TTT. Wells #1 & #3 <br /> did not reveal any contamination in either soil or groundwater <br /> samples. However, MW-2, in a downgradient position from the <br /> removed UST, measured BTEX & TPH-G in both soil & water samples; <br /> refer to TABLE l for details. Hydraulic gradient indicated to be <br /> to the north. For more details of that work, refer to the report <br /> titled "Site Assessment Report and Laboratory Analysis of Soil & <br /> Groundwater Samples to Define Contamination from Leaking UST" <br /> dated April 25, 1994, prepared by Wm. J. Hunter & Associates. <br /> June. 1994 - First quarterly monitoring revealed the <br /> -BTEX & TPH-G in MW-2; levels were lower than first recorded. of <br /> MW-2 & MW-3 still below detection levels as shown on 1ARLE 11 . <br /> Gradient still to the north. <br /> September 199A Second quarterly monitoring measured continued <br /> lower levels of BTEX; however, TPH-G had increased significantly. <br /> MW-2 & MW-3 still below detection limits. Hydraulic gradient has <br /> shifted about 40 degrees to the northeast. <br /> 1 <br /> 2 <br />