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MAY- 2-95 TUE 15: 47 DNPE T FAX N0, 7077634065 P 01 <br /> f 3700 Lakeville Highway, Pataluma, CA 94954 <br /> Telephone. (707) 763-8245 <br /> FAX (707) 763-4065 <br /> May 2 , 1995 <br /> John Menke <br /> Dames & Moore <br /> 8801 Folsom Blvd. <br /> Sacramento, CA 95826 <br /> Dear John, <br /> Our laboratory offers analysis of waters and soils by a fuel scan <br /> using Method 8015M. We call this analysis TPHIDQ, which stands for <br /> Total Petroleum Hydrocarbons, Quantified Identification. The <br /> TPHIDQ analysis offers quantitation of fuels from the light end of <br /> gasoline through the heavy end of motor oil . The fuels we report <br /> routinely are gasoline, mineral spirits, let fuel , diesel, and <br /> motor oil . However, any list of fuels can be chosen by your <br /> client. We are also calibrated for hydraulic fluid, light <br /> lubricating oil, crude oil , aviation gas, and stoddard solvent . If <br /> a carbon chain range is needed, we can provide that information as <br /> well. <br /> • The following table shoes the detection limits that we report for <br /> our TPHIDQ analysis . <br /> TPHIDQ <br /> FUEL DETECTION LIMIT (SOIL) DETECTION LIMIT (WATER) <br /> Gasoline 5 mg/kg 0 15 mg/L <br /> Min. spirits 5 mg/kg 0 15 mg/L <br /> Jet Fuel 5 mg/kg 0 05 mg/L <br /> Diesel 5 mg/kg 0. 05 mg/L <br /> Heavy Oil 50 mg/kg 0 5 mg/L <br /> Note that the detection limit for gasoline is higher in this <br /> analysis than if the sample were run by the volatile method of <br /> purge and trap analysis. If loser detection limits are desired by <br /> your client, I would suggest rurnxng gasoline by this method <br /> If you have any questions, don ' t hesitate to call <br /> 5lerely, <br /> Donna Breaux <br /> Project Manager Post-It M brand fax F,[ar;sm,Eta,memo 7677 a aFpayes . <br /> From <br /> I <br /> Dept <br /> Fax K I r D Fax b <br />