Laserfiche WebLink
* If found, analyze for dibenzofurans (PCB' s) or dioxins (PCP) <br /> NOTA BENE: GCMS using focused Cryogenic procedures may be <br /> substituted for BTX&E, TPH or chlorinate hydrocarbon (CL HC) <br /> analyses. Method 5030 is a purge and trap preparation for <br /> analysis. <br /> EXPLANATION FOR TABLE # 2 : MINIMUM VERIFICATION ANALYSES <br /> TOTAL PETROLEUM HYDROCARBONS (TPH) as gasoline (G) and diesel (D) <br /> turf ranges (volatile and extract ible, respec ive y) are to be <br /> P 0 analyzed and characterized by GC FID with a fused capillary <br /> ��� column and prepared by EPA method 5030 for volatile hydrocarbons, <br /> or extracted by sonication using 3550 methodology for extractible <br /> hydrocarbons. <br /> TETRAETHYLLEAD (TEL) may be analyzed as total lead. However, a <br /> ,,LLyv� confirming analysis must be completed using a soil sample at the <br /> same soil depth in another borehole, or for water, from an <br /> upgradient well that is not contaminated with hydrocarbons. <br /> HLO TED HYDROCARBONS and BENZENE, TOLUENE, XYLENE AND <br /> 1)0 ETHYLBENZE analyzed in soil by EPA methods 8010 and <br /> 8020 respective , (or 824 a Later 601 and 602 , <br /> respectivel , (or 624) . <br /> OIL GREASE (O & G) may be used when heavy, straight chain <br /> hydrocarbons may be present. Infrared analysis by method 418 . 1 <br /> may also be acceptable for O & G if proper standards are used. <br /> ED& - AFPA- 527.46 <br /> Notes: <br /> 1. To avoid false positive detection of benzene, benzene-free <br /> solvents are to be used. Fused capillary columns are preferred <br /> to packed columns; a packed column may be used as a "first cut" <br /> with "dirty" samples or once the hydrocarbons have been <br /> characterized and proper QA/QC is followed. <br /> 2 . For DRINKING WATER SOURCES, EPA recommends that the 500 series <br /> for volatile organics be used in preference to the 600 series <br /> because the detection limits are lower and the QA/QC is better. <br /> 3 . For all analyses on Table #2 , appropriate standards are to <br /> used for the material stored in the tank. For instance, <br /> seasonally, there may be five different jet fuel mixtures to be <br /> considered. <br /> 4 . Other methodologies are continually being developed (such as <br /> cryogenic focusing) , and as they are accepted by EPA or DHS, they <br /> also can be used . <br /> 6 <br />