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Y. ✓i�p' .�'. +n3_I�M1. �. K� �,wr;=' :� a�e a ^� �f �. �.' � ,A'• .n�,, _ {; �_ �j _� _ y�.d� �N <br /> 7 <br /> I <br /> 1 <br /> Attachment 2 <br /> r <br /> California Regional Water Quality Control Board <br /> San Francisco Bay Region <br /> aw <br /> REVISED ANALYTICAL METHODS 13./8/85 <br /> I ►� ANALYTICAL PROCEDURES FOR <br /> THE DETECTION AND QUANTIFICATION OF TOTAL PLTROLEUM <br /> FUEL HYDROCARBONS AND FUEL CONSTITUENTS <br /> The following analytical procedures and analysis shall be <br /> used for the detection and quantification of petroleum <br /> hydrocarbons and fuel constituents. :hese techniques are to <br /> be tallowed when analysis is required for evaluation of <br /> i , either a suspected or confirmed tank leak as presented in the <br /> guidelines. These analytical techniques cover the full range <br /> of petroleum fuel hydrocarbons from gasoline (C4-C ) to jet <br /> fuel (c -C7 6), to diesel (Cg-C ) in either a 'squid or <br /> solid mWri2. Detection of compill hydrocarbon mixtures are <br /> best achieved using a Gas Chromatograph with a Flame <br /> FM Ionization Detector (GC/FID). <br /> I. TOTAL PETROLEUM FUEL HYDROCARBONS ANALYSIS <br /> r, (Low to medium boiling point hydrocarbons) <br /> This includes the :'ull iange of gasoline. This <br /> technique may also tie appropriate for military grade jet <br /> _. fuels. <br /> I.A ' <br /> A. Sample ?reparation <br /> i-j 1. Water <br /> Use EPA method 5020, Headspace or EPA method 5030. Purge <br /> and Trap, (EPA Manual 5W-846, April 1984). <br /> I <br /> 2. Soil <br /> Use EPA method 5020, Headspace or EPA method 5030, Purge <br /> and Trap, (EPA Manual 5W-846, April 1984). <br /> Polyethylene Glycol (PEG) or Methanol can be uses as <br /> extracting solvents. Extractions are applicable for the <br /> analyses of both fresh or aged fuels. <br /> B. Analysis <br /> 1. Chromatographic operations for detection of total <br /> petroleum fuel hydrocarbons without BTX distinction. <br /> r% Detector: Flame Ionization <br /> Column: 10 % SP-2100 on 80/20 supelcoport (8' x 7;8" <br /> glass column). Capillary columns may also be used as a <br /> substitute to improve separation. <br />