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water, raw source water, or drinking water in any treatment stage. Forvinyl chloride the method has a detection limit of 0.31 ug/l and astandard deviation of 10.8%. [USEPA; Methods for the Determination ofOrganic Compounds in Finished Drinking Water and Raw Source Water(1986)]**PEER REVIEWED**EPA Method 502.2: Purge and Trap Capillary Column GC with Photoionizationand Electrolytic Conductivity Detectors in Series. The method isapplicable for the determination of volatile organic compounds in finisheddrinking water, raw source water, or drinking water in any treatmentstage. For vinyl chloride the method has a detection limit of 0.02 ug/l, apercent recovery of 109%, and a standard deviation of 5.4 using thephotoionization detector; and a method detection limit of 0.04 ug/l, apercent recovery of 95%, and a standard deviation of recovery of 5.6 usingthe electrolytic conductivity detector. [USEPA; Methods for theDetermination of Organic Compounds in Finished Drinking Water and RawSource Water (1986)]**PEER REVIEWED**EPA Method 502.1. Purge and Trap GC with a halogen-specific detector forthe determination of halogenated volatile compounds including vinylchloride in finished drinking water, raw source water, or drinking waterin any treatment stage. Under the prescribed conditions for vinylchloride, the method detection limit is 0.006 ug/l. [USEPA; Methods forthe Determination of Organic Compounds in Finished Drinking Water and RawSource Water (1986)]**PEER REVIEWED**EPA Method 8260. GC/MS for the determination of volatile organiccompounds. This method can be used to quantitate most volatile organiccompounds including vinyl chloride that have boiling points below 200 degC and are insoluble or slightly soluble in water. Under the prescribedconditions for vinyl chloride the method has a detection limit of 0.17ug/l, a percent recovery of 98%, and a percent relative standard deviationof 6.7% using a wide bore capillary column; and a detection limit of 0.04ug/l, a percent recovery of 104% and a percent relative standard deviationof 0.2% using a narrow bore capillary column. [USEPA; Test Methods forEvaluating Solid Waste SW-846 (1986)]**PEER REVIEWED**EPA Method 5030. Purge and Trap extraction procedure for the analysis ofvolatile organics. Such cmpds include low-molecular weight halogenatedhydrocarbons, aromatics, ketones, nitriles, acetates, acrylates, ethersand sulfides. An inert gas is bubbled through the solution at ambienttemperature, and the volatile components are efficiently transferred fromthe aqueous phase to the vapor phase. After purging is complete, thesorbent column is heated and backflushed with inert gas to desorb thecomponents onto a GC column. Water samples can be analyzed directly, whilepreparation is necessary for water-miscible liquids, solids, wastes andsoil/sediments. [USEPA; Test Methods for Evaluating Solid Waste SW-846(1986)]**PEER REVIEWED**EPA Method 5040. Protocol for Analysis of Sorbent Cartridges from VolatileOrganic Sampling Train. This method covers the determination of volatileprincipal organic hazardous constituents collected on Tenax andTenax/charcoal sorbent cartridges using a volatile organic sampling train,from wet stack gas effluents from hazardous waste incinerators. Thecontents of the sorbent cartidges are thermally desorbed, bubbled, andtrapped on an analytical adsorbent trap. The desired target detectionlimit of the analytical method is 0.1 ng/l. Interferences include