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1534 Willow Pass Road, Pittsburg, CA 94565. 1701 <br /> McCampbell Analytical , Inc . Toll Free Telephone: (877) 252-9262 / Fax: (925) 252-9269 <br /> -f " If1heu Qualih' Counts " http:1/www.mccampbell .com / E-mail: main 0a mecampbell.coin <br /> Quality Control Report <br /> Client : Fremouw Environmental Services , Inc . WorkOrder : 1504619 <br /> Date Prepared : 4/ 14/ 15 BatchID : 103642 <br /> Date Analyzed : 4/ 15 / 15 Extraction Method : E200 . 8 <br /> Instrument: ICP-MS 1 Analytical Method : E200 . 8 <br /> Matrix : Water Unit: gg/L <br /> Project : #59852 ; B &C Painting Sample ID : MB/LCSw103642 <br /> 1504592-003AMS/MSD <br /> QC Summary Report for Metals <br /> Analyte MS MSD SPK SPKRef MS MSD MS/MSD RPD RPD <br /> Result Result Val Val % REC % REC Limits Limit <br /> Antimony 52 . 1 51 .2 50 ND 104 102 70-130 1 .80 20 <br /> Arsenic 51 . 3 49: 8 50 ND 103 100 70-130 3 . 05 20 <br /> Barium 496 486 500 ND 99 97 70- 130 2020 20 <br /> Beryllium 52. 5 51 .2 50 ND 105 102 70- 130 2 .60 20 <br /> Cadmium 51 . 0 50. 3 50 ND 102 101 70-130 1 .42 20 <br /> Chromium 51 . 2 49. 3 50 ND 102 98 70- 130 3 .92 20 <br /> Cobalt 49. 9 49 .2 50 ND 100 98 70130 1 .47 20 <br /> Copper 51 . 7 51 . 0 50 ND 102 100 70- 130 1 . 54 20 <br /> Lead 52. 6 52. 3 50 ND 105 105 70- 130 0 20 <br /> Mercury 1 . 13 1 . 11 1 .25 ND 90 88 70-130 2 . 15 20 <br /> Molybdenum 50. 8 49 . 8 50 ND 102 100 70-130 2 . 11 20 <br /> Nickel 52. 0 50.4 50 ND 103 100 70-130 3. 16 20 <br /> Selenium 84. 2 95. 5 50 31 .71 105 128 70130 12. 5 20 <br /> Silver 50. 8 49.6 50 ND 102 99 70- 130 2037 20 <br /> Thallium 52 . 3 51 . 9 50 ND 105 104 70-130 0.710 20 <br /> Vanadium 50.5 49 .6 50 ND 101 99 70- 130 1 .76 20 <br /> Zinc 518 507 500 ND 102 100 70- 130 2 . 15 20 <br /> Surrogate Recovery <br /> Tb 350. 917 783 768 750 104 102 70-130 1 .87 20 <br /> f� <br /> CDPH ELAP 1644 ♦ NELAP 4033ORELAP " 1 QA/QC Officer <br /> Page 7 of 13 <br />