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These case studies illustrate
the performance using Sitelab’s UVF-3100 for testing gasoline range
organics (GRO), also called volatile petroleum hydrocarbons (VPH).
The analyzer has optical filters sensitive to monoaromatic
hydrocarbons in the C6-C10 range.
This test correlates well to EPA Method 8015-GRO by GC/PID,
used for reporting benzene and other BTEX compounds common in
gasoline, jet fuels and other light fuel oils. |
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Gasoline Station
Site Assessment:
A contractor used Sitelab to
test soil borings and groundwater samples on-site at an active
gas station where underground fuel tanks had leaked over time.
The data was used to help delineate the extent of
contamination, determine where to install monitoring wells and
select which samples should be sent off-site for confirmation.
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Petrol products contain benzene, xylenes and other BTEX compounds.
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GRO Sites in
Europe:
An environmental engineering
company located in Helsinki, collected samples from different
remediation sites having different types of contamination and
evaluated Sitelab’s UVF-3100 to see how accurate the tool would
be for testing GRO. Like
most countries in Europe, laboratories in Finland perform a
similar GC/PID test as EPA Method 8015, to report total GRO
concentrations and target BTEX compounds.
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Helsinki has it’s share of
petroleum sites, where regulatory agencies use similar U.S. EPA
methods and cleanup standards.
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U.S. EPA Soils from Air Force Base Site:
Soils from Kelly Air Force Base
in San Antonio, Texas, were analyzed for GRO as part of the
EPA’s TPH in Soil Evaluation Study.
Samples were collected from an active underground
storage tank (UST) farm, serving as the government vehicle
refueling station at the base.
Soils were contaminated with low concentrations of
both fresh and weathered gasoline, diesel fuel and trace
amounts of lubricating oil.
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Sitelab tests samples with
EPA’s contractor, Tetra Tech, observing during the final
demonstration at Port Hueneme, California.
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