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• • <br /> MULTI-TECH,A Division of <br /> Environmental Testing and Certification Corp. <br /> 320 Tesconi Circle, Suite G <br /> Santa Rosa, California 95401 <br /> 707-544-5570 <br /> ETC - MULTI-TECH <br /> QUAUTY ASSURANCE REPORT <br /> Analysis: EPA METHOD 608: ORGANOCHLORINE PESTICIDES AND PCBIS <br /> Batch: 88-280 <br /> QC Check <br /> Method Blank Recovery <br /> • (ug/L) <br /> Compound <br /> Aldrin ND 49 <br /> a-BHC ND 63 <br /> b-BHC ND 140 <br /> d-BHC ND 72 <br /> g-BHC ND 51 <br /> 4,41-DDD ND 61 <br /> 4,41-DDE ND 56 <br /> 4,41-DDT ND 61 <br /> Dieldrin ND 56 <br /> Endosulfan I ND 60 <br /> Endosulfan II ND 61 <br /> Endosulfan Sulfate ND 64 <br /> Endrin ND 73 <br /> Endrin Aldehyde ND 64 <br /> Heptachlor ND 46 <br /> Heptachlor Epoxide ND 54 <br /> Chlordane NA NA <br /> Methoxychlor NA NA <br /> . Toxaphene NA NA <br /> PCB®S NA NA <br /> Page 1 of 2 <br /> A Subsidiary of EnVwonffeml Treatment and Technofo&s Corp. <br /> The Environmental Services Comoanv <br />