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appill <br /> 4203 UJest Swift ® Fresno, California 93722 ® Phone 559.275 2175 ® Fax 559.275 4422 <br /> 4.1 , <br /> March 22, 2007 <br /> CH2M Hill <br /> 2525 Air Park Drive <br /> Redding, California 96001-2443 <br /> Attn: John Burke <br /> Subject: Report of Data: Case 52928 <br /> Results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document. This analytical report must be reproduced in its entirety. <br /> Dear Mr. Burke: <br /> Two water samples for project"353024.01.01.01 Forward LF GTF Mar2007" were <br /> received March 6, 2007,in good condition. Written results are being provided on this <br /> March 22, 2007,for the requested analysis. All holding times were met. <br /> For the EPA 8260B analysis, the samples were purged according to EPA method 5030B. <br /> In the 070309AS method blank, 1,2,4-Trichlorobenzene and Naphthalene were detected <br /> at 2.8µg2 and 4.0/L, respectively. The two compounds were also detected in sample TB- <br /> 507. In the 070309AS lab control spike, 1,2,3-Trichloropropane,4-Methyl-2-pentanone, <br /> and Naphthalene recovered above the 130% upper control limit and Vinyl Chloride <br /> recovered below the 70% lower control limit. As one vial was received for sample TB- <br /> 507, the sample could not be re-analyzed. All acceptance criteria were met for the QC <br /> associated with sample GWTF-EFL_0307. <br /> No other unusual problems or complications were encountered with this sample set. <br /> If you have any questions or require further information,please contact us at your <br /> convenience. Thank you for choosing APPL, Inc. <br /> Sincerely, <br /> Leonard Fong, Ph.D, Laboratory Director <br /> APPL, Inc. <br /> LF/sf <br /> Enclosure <br /> cc: File Number of pages in this report �O <br /> 52928 Burke Redding.doc <br /> Z <br />