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�x fs <br /> I - <br /> k� <br /> SUPERIOR ANALYTICAL LABORATORIES, INC. <br /> 825 ARNOLD,S771 • MARTINEZ,CALIFORNIA 94553 • (415) 229.1512 <br /> DOHS k319 <br /> i < <br /> DOHS #220 <br /> C E R T I F I C A T E O F A N A L Y S I S <br /> LABORATORY NO. : 81366 DATE RECEIVED: 08/23/90 <br /> CLIENT: Alton Geoscience <br /> CLIENT JOB NO. : 30-140 DATE REPORTED: 08/20/90 <br /> ANALYSIS FOR TOTAL PETROLEUM HYDROCARBONS <br /> by Modified EPA SW-846 Method 5030 and 8015 <br /> LAB Concsentration (mg/L) <br /> ---- Sample-identification Gasoline Range <br /> -------------- <br /> 9 AMW--4 ND<0.05 <br /> 10 AMW-3 0.09 <br /> mg/L - parts per million (ppm) <br /> Method Detection Limit for Gasoline in Water: 0.05 mg/L <br /> QAQC Summary: i <br /> ks Daily Standard run at 2mg/L: RPD Gasoline = 3 <br /> MS/MSD Average Recovery = 99%: Duplicate RPU = 6 <br /> iso <br /> Richard Srna, Ph.D. <br /> ux� <br /> Laboratory Manager <br /> -- <br /> OUTSTANDING QUALITY AND SERVICE <br />