Laserfiche WebLink
SEQUOIA ANALYTICAL <br /> 1900 Bates Avenue • Suite LM • Concord, California 94520 <br /> (510) 686-9600 • FAX (510) 686-9689 <br /> aprealian Engineering, Inc Client Project ID Unocal#5098,560'6 Pacific Aver,Stockton Sampled Mar 25, 1993 <br /> 401 Stanwell Dr, Ste 400 Sample Matrix Water Received Mar 26, 1993 <br /> Concord, CA 94520 Analysis Method EPA 5030/8015/8020 Reported Apr 7, 1993 <br /> Attention Mardo Kaprealian, P E First Sample # 303-1170 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample Sample Sample Sample <br /> Analyte Limit I D I D I D I D I D <br /> ug/L 303-1170 303-1171 303-1172 303-1173 Matrix <br /> MW 10 MW 11 MW 12 MW 13 Blank <br /> Purgeable <br /> Hydrocarbons 50 470 78,000 21,000 N D <br /> Benzene 0 5 5 5 18,000 2,800 N D <br /> Toluene 05 N D 23,000 1,900 N D <br /> Ethyl Benzene 0 5 21 2,100 700 N D <br /> Total Xylenes 05 062 12,000 1,400 N D <br /> Chromatogram Pattern Gasoline Gasoline Gasoline -- <br /> Quality Control Data <br /> Report Limit Multiplication Factor 1 0 200 100 10 1 0 <br /> Date Analyzed 3/31/93 3/31/93 3/31/93 3/31/93 3/31/93 <br /> Instrument Identification HP-2 HP-2 HP-2 HP-2 HP-2 <br /> Surrogate Recovery, % 97 108 105 104 106 <br /> (QC Limits = 70-130%) <br /> Purgeable Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported as N D were not detected above the stated reporting limit <br /> EQ IA 0 ANALYTICAL <br /> r <br /> colt A ieffo <br /> Project Manager 3031170 KEI <1> <br />