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k4 KLEINFELDER <br /> September 7, 1991 <br /> File: 24-2009-01 <br /> Mr. David Bates <br /> Marley Cooling Tower <br /> P.O. Box 2912 <br /> Mission, KS 66201 <br /> SUBJECT: Lysimeter Sampling <br /> Marley Cooling Tower--Stockton,California <br /> Dear Mr. Bates: <br /> Enclosed are the revised results of the July 25, 1991, lysimeter sampling event. Twelve <br /> samples were collected by Meinfelder and were submitted for analysts of copper, arsenic, <br /> trivalent chromium, hexavalent chromium, total chromium, and nitrates. Chris Cuzzi and <br /> Brian Lilly of Layne Environmental were present during the field sampling. The samples <br /> were delivered under chain-of-custody to Chemwest Analytical Laboratory to Sacramento <br /> for analysis. <br /> Results of the analyses, along with the appropriate reporting limits, are presented on the <br /> laboratory data sheets attached. Four method blank spiked samples were analyzed as part <br /> of the laboratory QA/QC program. The hexavalent chromium analytical results provided <br /> by the laboratory on August 16, 1991, were in error due to a deletion of sample 67838 <br /> results and a translation of the remaining analytical results. The corrected analytical data <br /> sheet is enclosed with this data package. The nitrate analysis was also not completed due <br /> to laboratory equipment failure and matrix interference during the analysis. It is our <br /> understanding that the nitrate analysis will not be available because the samples exceeded <br /> the standard holding times. Table 1 presents the lysimeter stations, sample identification, <br /> and the field observations for this sampling event. <br /> It is Kleinfelder's understanding that Layne Environmental, an affiliate of Marley Cooling <br /> Tower Company,will assume the lysimeter sampling at the Marley facility in Stockton. <br /> If we can assist you in the future by providing environmental or engineering services, please <br /> do not hesitate to contact us. <br /> Sincerely, <br /> KLEYWELDE C. <br /> Alex M. Richards <br /> Staff Geologist <br /> &e�ph�ZnE. <br /> Senior Engineer <br /> AMR:SSB:cc <br /> Enclosure <br /> cc: Mr. Craig Willis <br /> e <br /> FM-2-14 <br /> copyright 1991 Kleinfelder, Inc. <br /> KLEINFELDER 3077 Fite Circle, Sacramento, CA 95827 (916) 366-1701 <br />