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\K ACCpRO/9 <br /> e� ycF M EMBER <br /> Lfeystone U <br /> • LABORATORIES, INC 2 <br />' GeoSyntec-Oakland Project Western Farm Service-Vernalis <br /> 475 14th Street,Suite 450 Project Number [none] Reported <br /> Oakland CA,94612 Project Manager Susan Skoe 12/10/04 08 59 <br /> Determination of Dissolved Metals-Quality Control <br /> Keystone Laboratories, Inc. - Newton <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Lieut Units Level Result %REC Limits RPD Limit Notes <br />,Batch 1L40140-Dissolved Metal Pre <br /> Calibration Check(IL40140-CCV2) Prepared&Analyzed 12/01/04 <br />'Chromium,dissolved 0 972 mg/l too 972 90-1 l0 <br /> Copper,dissolved 0 993 100 993 90-110 <br /> Iron,dissolved 222 210 106 90-110 <br /> Manganese,dissolved 102 too 102 90-110 <br /> Nickel,dissolved 0 995 too 995 90-110 <br /> Zinc,dissolved 104 100 104 90-110 <br /> Matrix Spike(1L40140-MSI) Source 14K1101-02 Prepared&Analyzed 12/01/_04 _ <br /> Chromium,dissolved 0 377 0 005 mg/l 0 400 0 003 935 83-111 <br /> Chromium, <br /> dissolved 0 428 0 005 0 400 0 049 948 88-111 <br /> Iron,dissolved 0 870 0 100 " 0 400 0 436 108 71-129 <br /> Lanese <br /> dissolved 0 665 0 005 0 400 0 282 958 75-117 <br /> dissolved 0 438 0 005 0 400 0 067 928 75-119 <br /> dissolved 0 731 0 010 0 400 0 353 945 75-118 <br /> Matrix Spike Dup(1L40140-MSDI) Source 14K1101-02 Prepared&Analyzed 12/01/04 <br /> khromium,dissolved 0 370 0 005 mg/I 0 400 0 003 918 83-111 187 10 <br /> opper dissolved 0 442 0 005 " 0 400 0 049 982 88-1 I l 322 10 <br /> Iron,dissolved 0 900 0 100 0 400 0 436 116 71-129 339 12 <br /> anganese,dissolved 0 654 0 005 0 400 0 282 930 75-117 167 10 <br /> ickel,dissolved 0 427 0 005 0 400 0 067 900 75-119 254 10 <br /> Zinc,dissolved 0 690 0 010 0 400 0 353 842 75-118 577 10 <br /> reference(I L40140-SRM 1) Prepared&Analyzed 12/01/04 <br /> hromiurn,dissolved 0 488 m9/1 0 500 976 90-110 <br /> Copper,dissolved 0 497 0 500 994 90-110 <br /> Ckel <br /> n,dissolved 264 " 250 106 90-110 <br /> nganese dissolved 0 511 0 500 102 90-110 <br /> dissolved 0 497 0 500 994 90-110 <br /> Zinc dissolved 0 520 0 500 104 90-110 <br /> i <br /> I <br /> Keystone Laboratories, Inc -Newton The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document This analytical report must he reproduced in its entirety <br /> 0 <br /> Jeffrey Kmg,Ph D, Laboratory Director page 20 of 23 <br /> Phone 641-792-8451 600 East 17th Street South Fax 641-792-7989 <br /> Newton, IA 50208 <br />