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Jill-43-9T 15:34 from:l T- CORPORATION 5102Z$Z501 T-B83 P.42l08 bab-Z13 <br /> rlegloncl ottice <br /> 4585 Pxhvw SOLOW(rd <br /> kvla¢bzse:.CaLlazzun 99553-24553-22333 <br /> 51!}372-9100 <br /> FCU:530-372-5220 <br /> July 3, 1997 <br /> Ms. Mary Ways, RENS <br /> Senior Registered Environmental Health Specialist <br /> Public Health Services <br /> San Joaquin County <br /> Environmental Health Division <br /> 304 E. Weber Strcct <br /> Stockton, CA 95201 <br /> C.m„ndWater Mnnitnring Iter Report - Site Code 2207 . <br /> 1400 Waterloo Road Stockton <br /> Dear Ms. Meays: <br /> IT Corporation(1T)was retained to perform groundwater monitoring at the Lipton(formerly Van <br /> den Bergh Foods Company)facility(Site Code 22073), located in Stockton, Calltbrnia. The field <br /> work was performed on June 30, 1997. <br /> The monitoring included measuring the groundwater levels in the six monitoring wells at the site, <br /> sampling groundwater in one monitoring well (MW-4) located adjacent to the former leaking <br /> underground storage tank, and analysis of the sample for total petroleum hydrocarbons (TPH) as <br /> diesel. This monitoring was requested by San Joaquin County Public Health Services,Environmental <br /> Health Division(PHS/FM)as a final corrective action at the site. The objective of the sampling was <br /> to measure the concentration of TPH as diesel in the groundwater immediately below the former <br /> diesel source. <br /> Field Aativiteq <br /> The field activities were initiated with a Tailgate Safety Meeting to identify and discuss potential <br /> health and safety hazards associated with the monitoring activity. Subsequently, the groundwater <br /> depth in each well was measured using a water level meter. <br /> Approximately three well volumes of groundwater(22 gallons)were then purged from monitoring <br /> well Mid'-4 using an unused disposable bailer. Groundwater parameters including plL electrical <br /> conductivity, dissolved oxygen and temperature were monitored, and stabilized during purging. A <br /> groundwater sample was then collected in two one liter glass amber bottles. The bottles were labeled, <br /> sealed and packed in an ice-box cooler that was maintained at a temperature of approximately 4'C <br /> using water-ice,until it was delivered to McCarnpbell Analytical Inc. (DHS Certification No. 1644), <br /> it CUry7cs==b 17 whWir owned whpk&or d L�vrrnol.on W rochrxKWY CoMuMb= <br />