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The
Senior Staff has performed hundreds of soil and ground
water assessment
projects
in 30 US States in accordance with differing State and
Federal regulatory requirements. These assessments
have been performed for RCRA hazardous waste releases, federal and
state-lead Superfund sites, and State lead release
investigations. RCRA services include assessment
of releases caused by fires or leaks from containers,
Closure Plans, Part B applications and renewal
applications, characterization and disposal of
drums/containers, RCRA Facility Investigations (RFI’s),
Corrective Measures Studies, Interim Measures
remediation, design and implementation
of final remedies, and regulatory negotiations.
Our staff has extensive experience in differing
hydrogeologic environments in assessing chlorinated
solvent (including 1,4-Dioxane), nutrient, petroleum
hydrocarbon, MTBE, and inorganic plumes.
Standard assessment methods such as auger or air
rotary and direct push drilling rigs are commonly
utilized. Other common methods include soil gas
surveys, geoph ysical
surveys, the collection of monitored natural
attenuation parameters, and of course the collection
of soil and ground water samples. Conventional
assessment methods typically result in ground water
plume maps that show the general shape of a
contaminant plume, and this is satisfactory for many
sites.
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