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t t <br /> CHRONOLOGY <br /> MARCI'S DIESEL SERVICE <br /> 2969 LOOMIS <br /> STOCKTON CA <br /> 03-12-87 <br /> Two 5,000 gallon diesel tanks removed this date. No holes noted on tanks but odors <br /> and discoloration noted in soil beneath tanks. One sample collected from <br /> approximately 15' bgs from beneath each tank. The results were as follows. <br /> TANK REMOVAL SQJL_SAMPLE RESULTS <br /> 103-12-8� <br /> ppm) <br /> NPH TEPH B X T <br /> TANK #1 26.0 6300 0.2 1.3 <0.2 <br /> TANK #2 17.0 16000 0.20 1.1 <0.2 <br /> 03-14-88 <br /> Soil excavated from beneath the former tanks to approximately 29' bgs. Soil was noted <br /> to be mostly clay and was observed to have diesel odors. Two bottom samples <br /> collected at approx. 29'bgs from the east and west ends of the tank pit. The results of <br /> this sampling is shown below. <br /> EXCAVATION SOIL SAMPLE RESULTS <br /> go <br /> (ppm) \\'' <br /> TVPH B T X r <br /> WEST 83.0 <2.0 <2.0 18.0 <br /> EAST 80.0 <2.0 <2.0 18.0 Y <br /> C <br /> 04-03-92 L 1`-,} a `~ <br /> Three MWs installed this date. <br /> 05-30-96 <br /> One soil boring drilled this date through the middle of the former tank pit. Odors noted <br /> during the drilling. <br /> 01-14-97 <br /> PHS-EHD receives request for closure from RP based on the groundwater data <br /> collected at the site over four years which indicates very limited and insignificant impact <br /> to groundwater from the remaining impacted soil at the site. The report attributes this to <br />