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Euj1m®eu. <br /> 3` �• yx.��•6 �,�� ;r �! ,'s" it, �'� a S�@ � <br /> &6r <br /> k <br /> t. <br /> e <br /> December 11, 1991 <br /> Mr.R. R. Zielinski Page 2 <br /> 02320 1940 <br /> The water samples were analyzad using modified EPA methods 5030!8020/10 loan hichzene, measure <br /> concentrations of total peeasure <br /> troleum hydrocarbons-as-gasoline (TPH-G), <br /> conn nt atio and xylenes e X). Copies of the laboratory analysis reports and chain-at-custody <br /> ethylmanifests are presented in Attachment D. <br /> GROUNDWATER ANALYTICAL RESULTS <br /> Concentratlans of TPH-G in the Novsrnber 6, 1991 groundwater samples ranged fromp , s per <br /> entrations ranged from 21 to 24, $QQ 0 parts <br /> and <br /> billion (ppb) to 68,000 ppb;the benzene conc <br /> benzene concentrations,shown in Figtires 2 and 3,Attachment A),were generally higher than those <br /> reported the previous quarter, analytical results for the November b, 1991 samples along with results <br /> from the four previous st.mpling events are presented in Table 2(Attachment C). <br /> Please contact Groundwater Technology's West Sacramento office if you have questions or comments <br /> regarding this quarterly report. <br /> T <br /> Sincerely, <br /> GROUNDWATER TECHNOLOGY, INC. <br /> DANISE M. SCRIVEN <br /> e Project Geologist <br /> JOHN E. DOWER, R.E.A. <br /> Environmental Geologist <br /> Project Manager <br /> E. K. SIMONIS,R.G. ,, < z <br /> Senior Environmental Geclogist No.4122 <br /> DMS/JEBIEKS:rc ; <br /> Attachments <br /> cc: D. E. Heinrich,Texaco Environmental'�e' rices <br /> GROUNDWATER <br /> TECHNOLOGY.INC. <br />