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�5 lY <br /> j SEQUOIA ANALYTICAL <br /> 1900 Bates Avenue Suite LM • Concord, California 94520 <br />• (510) 686-9600 • FAX (510) 686-9689 <br /> Kaprealian Engineering, Inc Client Project ID Unocal/7303 Pacific Ave, Stockton Sampled Dec 30, 1991 <br /> P O Box 9% Matrix Descript Water Received Dec 30, 1991 <br /> Benicia, CA 94510 Analysis Method SM 5520 B&F (Gravimetric) Extracted Jan 3, 1992 <br /> Attention Mardo Kaprealian, P E First Sample# 112-1160 Analyzed Jan 7, 1992 <br /> Reported Jan 15, 1992 <br /> ti M1 M1 l <br /> TOTAL RECOVERABLE PETROLEUM OIL <br /> Sample Sample Oil &Grease <br /> Number Description mg/L <br /> (ppm) <br /> 112-1160 Mw1 N D <br /> Detection Limits so <br /> Analytes reported as N 0 were not present above the stated lima of detection <br /> SEQUOIA ANALYTICAL <br /> Belinda C Vega <br /> Laboratory Director 1121160 KEI a3> <br />