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, 1 <br /> 41r; 518larkhawk Plaza Circle, Suite 100, Danville, CA 94506 1925) 648-2008 Fax (925) 648-2797 <br /> Compliance <br /> & <br /> (30osure, Inc <br /> m�r <br /> October 20, 2004 OCT 2 9 2004 <br /> i tFiI YlJ,1 k.;__R HS <br /> San Joaquin County <br /> Public Health Services, Environmental Health Dkv:ston <br /> 304 E Weber Avenue, 3rd Floor <br /> Stockton, California 95202 <br /> Attention Ms Lori Duncan <br /> Subject Fourth Quarter 2004 Groundwater Monitoring Report <br /> Quik Stop No 121 <br /> 1196 West Louise Avenue, Manteca, California <br /> (CCI Project No 12118-2) <br /> Dear Ms Duncan <br /> Compliance & Closure, Inc (CCI) is pleased to submit the FourthQ uarter 2004 Groundwater <br /> Monitoring Report for the sampling of the thirteen on and oft-site groundwater monrtolrng wells <br /> at Quik Stop Market No 121, located at 1196 West Louise Avenue in the City of Manteca flan <br /> Joaquin County, California (Figure 1) CCI completed the well sampling on October 5, 2004, in <br /> accordance with the requirements of the San Joaquin County Public Health Services, <br /> Environmental Health Division (County) <br /> During the past three months, the water level in the shallow aqui lei at the site has dropped <br /> approximately 1 foot, therefore CCI was able to collect groundwater samples from only 7 of the <br /> 13 wells this quartet CCI has monitored the operation of the KVA C-Sparge system (System) <br /> on a b-monthly basis to insure proper operation For the three months ending on October 5, <br /> 2004, the System has operated a total of 609 hours, and since it began operating full time on <br /> August 2, 2002, it has operated a total of 7,774 hours The System has been shutting down due to <br /> electrical problems, however, since August, the electrical problem has been repaired and the <br /> System has operated with no problems 1 he groui 0water data collected during October continue <br /> to show the groundwater contamination being reduced to the immediate area around monitoLing <br /> well RW-1 The results of the monitoring ate included in this report <br /> The fourth quartet groundwater samples were analyzed .For total petroleum hydrocarbons a, <br /> gasoline (TPHg), benzene, toluene, ethylbenzene and total xylenes (B'l LX) and fuel oxygenates <br /> Groundwater samples were collected from the site wells rrr ac,cotdance with COI's Groundwater <br />