EarthWorks Environmental -

Location:	Eastern Wyoming Treatment: Bio Enhanced Surfactant
Volume of soil:	2750 yd³
Contamination type(s):	Gasoline and diesel fuel
Average level of contamination:	3800 PPM diesel; 60 PPM gasoline
Peak levels of contamination:	Unknown, but some sections saturated with contaminant liquid/free product gasoline
Elapsed time for project:	Nineteen days (majority of soil was pre-screened to remove an extensive concentration of debris, including large chunks of concrete and asphalt)
Elapsed time after completion prior to collecting confirmation samples:	Twenty-three days
Number of confirmation samples collected:	60 samples collected, 30 for testing for diesel and 30 for testing for gasoline and BTEX
Results from confirmation testing:	<10 ppm Non-detect for diesel fuel, gasoline and BTEX for all samples. Sensitivity: 10ppm

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