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CHROMALAB, INC. <br /> %,= Environmental Services(SDB) <br /> October 11, 1996 Submission #: 9610054 <br /> ' P G & E LAB <br /> Atten: David Harnish/John Holladay <br /> Project MCDONALD ISLAND K3/K4 Project#: 2774 MD <br /> Received October 3 , 1996 <br /> re Blank spike and duplicate report for Glycols analysis <br /> Method Glycols by GC FID <br /> Ma trax: SOIL <br /> Lab Run#. 3550 Analyzed: October 10, 1996 <br /> Spike <br /> ' Spike Amount Amount Found Spike Recov % <br /> BSP Dup BSP Dup BSP Dup Control % RPD <br /> Anal toLnK (MCT/K Limits RFD Lim <br /> ' ETHYLENE GLYCOL 100 100 72 83 72 0 83 0 70-1.30 14 2 20 <br /> DIETHYLENE GLYCOL 100 100 78 88 78 . 0 88 0 70-130 120 20 <br /> TRIETHYLENE GLYCOL 100 100 78 86 78 . 0 86 0 70-130 9 . 76 20 <br /> �ETRAETHYLENE GLYCOL 100 100 77 89 77 . 0 89 . 0 70-130 14 4 20 <br /> 1 <br /> BS Smpl # 103354 <br /> BSD Smpl # 103355 1220 Quarry Lane•Pleasanton, Callfomla 94566-4756 <br /> (510)484-1919 - Facsimile (510) 484-1096 <br /> Federal ID #68-0140157 <br />