Petroleum fuels and oils are complex mixtures of hydrocarbons that vary, not only among the fuel types, but also within each fuel type depending upon manufacturer, geographic location, and seasonal use. The compositions of these products are made up of several hundred hydrocarbon compounds.

Total petroleum hydrocarbons (TPH) analysis is a method to identify and quantify the fuel type and the contaminant level within a sample matrix.  This method includes Diesel Range Organics (DRO), Gasoline Range Organics (GRO) and Extended Range Organics (ERO).
Benzene, toluene, ethylbenzene and xylenes (BTEX) are volatile compounds representative of fuel contamination.  MTBE is a highly used fuel oxygenate within the United States and thus included in normal BTEX analysis.

ESG Laboratories applies methods SW846 8021, 8015M and EPA 602 for analysis of total petroleum hydrocarbons, BTEX along with methyl tert-butyl ether (MTBE).  All samples are collected, handled, prepared and analyzed in accordance with USEPA 40 CFR Part 136 as amended.

To order an analysis or for a quote:

Contact Steve Cohen, Manager of Client Services at (317) 290-1471 or e-mail us at This e-mail address is being protected from spambots. You need JavaScript enabled to view it .


ESG serves corporate, private and governmental customers. Tests are performed by qualified professionals in well-equiped laboratories.

ESG reports are for compliance with US EPA & IDEM regulations, and are routinely reviewed by the following:

Indiana Department of Environmental Management (IDEM)
Office of Water Quality (OWQ)
Office of Land Quality (OLQ)
Drinking Water Branch