DERR-2024-004316

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Appendix F
Analytical Methods for Environmental Sampling at
Underground Storage Tank Sites in Utah (July 2013)
Substance or
Product Type
Contaminant Compounds to be Analyzed
for Each Substance or Product Type
ANALYTICAL
METHODS1
Groundwater or Surface Water
Gasoline
Total Petroleum Hydrocarbons (purgeable TPH as
gasoline range organics C6 - C10)
EPA 8015 or EPA 8260
Benzene, Toluene, Ethyl benzene, Xylenes,
Naphthalene, (BTEXN) and MTBE
EPA 8021 or EPA 8260
Diesel
Total Petroleum Hydrocarbons (extractable TPH as
diesel range organics C10 – C28)
EPA 8015
Benzene, Toluene, Ethyl benzene, Xylenes, and
Naphthalene (BTEXN)
EPA 8021 or EPA 8260
Used Oil
Oil and Grease (O&G) or
Total Recoverable Petroleum Hydrocarbons (TRPH)
EPA 1664 or
EPA 1664 (SGT*)
Benzene, Toluene, Ethyl benzene, Xylenes,
Naphthalene (BTEXN) & MTBE; and
Halogenated Volatile Organic Compounds (VOX)
EPA 8021 or EPA 8260
New Oil
Oil and Grease (O&G) or
Total Recoverable Petroleum Hydrocarbons (TRPH)
EPA 1664 or
EPA 1664 (SGT*)
Other Type of analyses will be based upon the substance or
product stored, and as approved by the DERR Division
Director
Method will be based
upon the substance or
product type

Unknown
Total Petroleum Hydrocarbons (purgeable TPH as
gasoline range organics C6 - C10)
EPA 8015 or EPA 8260
Total Petroleum Hydrocarbons (extractable TPH as
diesel range organics C10 – C28)
EPA 8015
Oil and Grease (O&G) or
Total Recoverable Petroleum Hydrocarbons (TRPH)
EPA 1664 or
EPA 1664 (SGT*)
Benzene, Toluene, Ethyl benzene, Xylenes, and
Naphthalene (BTEXN) and MTBE; and Halogenated
Volatile Organic Compounds (VOX)
EPA 8021 or EPA 8260
The following modifications to these certified methods are considered acceptable by the DERR Division Director:
Dual column confirmation may not be required for TPH and BTEXN/MTBE analysis.
A micro-extraction or scale-down technique may be used for aqueous samples, but only for the determination of
extractable TPH as diesel range organics (C10 – C28).
Hexane may be used as an extraction solvent.
*Silica Gel Treatment (SGT) may be used in the determination of Total Recoverable Petroleum Hydrocarbons.

NOTE: The sample preparation method and any modification(s) to a certified method must be reported by the laboratory.
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