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^ • • P 03 <br /> O� 7- '�1, <br /> D <br /> j <br /> SEP 2 2 1989 NOV 2 8 1989 <br /> EN4'19'iVrOENTAL HEALTH <br /> ENVIRONMENTAL HEALTH F'CICiYiI /$Eta r^ <br /> PERMIT/SERVICES l ' Lo <br /> September 25, 1?09 <br /> Ms. ICe�ry I-nley <br /> Uepartment of Environmental 140dlth <br /> San Joaquin County <br /> 1601 East Hazelton Avenue <br /> Stockton, CA 95891 <br /> Dear Ms . Foley: <br /> I was contacted this morning by Cottle Engineering with respect to <br /> questions you had regarding the DHS Hazardous Waste Testing <br /> certification of Western Environmental Science and Technology (WEST) . <br /> Please find included with this lettera copy of WEST ' % DHS Hazardous <br /> Waste Testing Certificate. WEST was certified on May 24 , 1989 by DHS <br /> for EPA Methods 6010/601 ; 6020/602 ; and modified method 8015. <br /> Please call me if you have any further questions regarding WEST ' s <br /> certification. Thank you for your attention to this matter . <br /> Sincerely , <br /> frery H. Wieser ' <br /> Director of Operations <br /> W"Wfl rRAroM#nral <br /> .VLya.M.u{ lwluuJuyy <br /> 1u40 Odra Dr;",Sure 3 <br /> Ourfu,CA 08911E <br />