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i <br /> UNIntNV ICE COMPANY <br /> 425 North Union Street, Stockton, CA <br /> Quarterly SampUng Report - September, 1992 <br /> Site Code 241434 <br /> f <br /> NARRATIVE <br /> On September 18 1992, WHF Environmental Consultants, Inc , in conjunction with <br /> HKM, Inc , conducted the field measurement, well pumping and sampling on the <br />' monitoring well located at this site _ <br />' The groundwater elevation was taken from the well prior to pumping It was evacuated <br /> by means of a steam cleaned, stainless steel bladder-type pump At least three i3) well <br /> volumes were pumped from the well Dunng dze thlree k3) volume pump down of the <br />' well, sampl:.s we= collected to measure the held pH, electrical conductivity and <br /> temperature. Once stability was achieved and a rummum of three (3) volumes were <br /> removed, the sample was colleaed. It was then labeled and placed in an ice chest with <br /> blue and crushed ice <br /> 'The sample was logged on a Cham of Custody form and transported to GeoMonitor, <br />' Inc , Laboratories, a State certified laboratory located in Hesperia, California The <br /> analysis requested for the water sample was EFTA method 602 for purgeable aromatic <br /> hydrocarbons (Benzene, Toluene, Ethyl Benzene and Total Xylene), 418 1 for oil & <br />' grease/kerosene The detection limits used were 4 5 yg/l for Benzene, Toluene and <br /> Ethyl Benzene, 15 0 µg11 for total Xylene, and 500 µg11 for oil & grease/kerosene <br /> 1 <br /> 1 <br /> r <br />