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1 alscience <br /> -I;;,,nvironmenta! <br /> Aw aboratories, Inc. <br />' QUALITY ASSURANCE SUMMARY <br /> Method EPA 601 <br />' Environmental Audit, Inc Work Order No 94-06-454 <br /> Page 1 of 1 Date Analyzed 07/01/94 <br /> Blank Spike/Blank Spike Duplicate <br /> Sample Spiked Method Blank <br /> Control Control <br /> Ana! a BS%REQ BSD%REC Lima %RPD Limits <br />' Carbon Tetrachloride 110 100 65- 120 10 0 - 20 <br /> Chlorobenzene 100 94 65- 120 6 0 -20 <br /> 1,2 Dichloropropane 100 100 66- 120 0 0 - 20 <br /> Trichloroethene 100 98 65- 120 2 0 - 20 <br /> Surrogate Recoveries (in %) <br />' 11 S2 S3 <br /> 94-06-454-1 83 88 87 <br /> 94-06-454-2 93 97 96 <br />' %REC <br /> Acceptable Limits <br /> S1 > Bromochloromethane 65- 135 <br /> S2>4-Bromo-1-Chloropropane 65- 135 <br /> S3> 1,4-Dichlorobutane 65- 135 <br /> Reviewed and approved on ,L/_Z.5,/1994 <br /> William H Ch este sen <br /> Deliverables Manager <br /> 11631 Seaboard Circle, Stanton, CA 90680 • TEL (714) 895-5494 • FAX (714) 894-7501 <br />