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Report: Groundwater-quality Monitoring-December 20-21,2005, 7500 West Eleventh Street, Tracy, CA. Page 15 <br /> y � 3.0 MONITORING OF FLOATING PRODUCT <br /> On December 20-21, 2005, Monitoring Wells MWFP-1 through MWFP-5 and <br /> groundwater-quality Monitoring Wells MW-7, MW-13 and MW-14 were checked for the <br /> presence of LNAPL floating on the groundwater by slowly lowering a hydrocarbon/water <br /> interface probe into each well. As is recorded in Table 3, no floating product was <br /> detected in any of those wells except for Well MW-7, in which 0.03 ft. of floating <br /> product was measured. That thickness of LNAPL was a decrease from the thickness of <br /> 0.14 ft, recorded on October 20, 2005. <br /> The small quantity of LNAPL present in Monitoring Well MW-7 was removed when that <br /> well was purged prior to recovery a groundwater sample on December 21, 2005. <br /> sic <br />