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M <br /> o 1 r <br /> � C ONSTRUCTION rSTING & ENGINEERING , INC. <br /> ESCONDIDO MODESTO <br /> ENGINEERING, INC <br /> June 5, 1992 PUZ,11 <br /> �bbb o <br /> Gillies Trucking, Inc. JUL 2 7 1993 <br /> 3931 Newton Road <br /> Stockton, California ENV/RC <br /> P'ERA?T/S�9LL <br /> E�AI,TF[ <br /> Attention: Ken <br /> Sub3ect Monitoring Well Development <br /> and Sampling <br /> Gentlemen: <br /> On May 19, 1992 a representative of Construction Testing and Engineering, Inc was <br /> on site to develop and sample an existing monitoring well. Diane Hinson, <br /> Supervising Health Specialist, was on site to observe well development for San <br /> Joaquin County Public Health Services. <br /> Prior to developing the well the sampling equipment provided by riolxeimatel c 4i gwwas <br /> . <br /> cleaned with TSP and double rinsed with distilled water. App Y <br /> ell <br /> volume were removed during well development. Temperature was taken after every <br /> well volume and prior to sampling. Electrical conductivity and pH was performed as <br /> a laboratory test. <br /> The well was then sampled and water was stored in a cooler with ice and delivered <br /> immediately to the laboratory for analysis under chain of custody procedures The <br /> samples were analyzed for TPH-Diesel, TPH-Gasoline, BTEX, electrical conductivity <br /> and pH. Attached to this letter is a copy of the test results,chain of custody form, <br /> and well development logs. <br /> If you have any question please do not hesitate to call <br /> Sincerely, <br /> CONSTRUCTION TESTING & ENGINEERING INC. - MODESTO <br /> 4��Z4&L-- <br /> Vincent Jy Patula <br /> Project Geologist <br /> VJPIkm <br /> env\92-2035 <br /> GIEOTECIINICAL & CONSTRUCTION FNGINLEIZING '11.,1 ING & INSPFC I ION <br /> 2414 VINLYARD AVENUL SUITE 0 ESCONDIDO, CA 92029(619)746 4955 I,AX (619)746 9806 <br /> 3540OAKDALE ROAD MODESTO, CA 95355 (209)551 2271 PAX (209)55I 3593 <br />