subsurface investigation การใช้

Subsurface investigations in 1981, 1983, 1985, and 1986, a 1991 Environmental Baseline Survey / Preliminary Assessment Screening by the Corps of Engineers, a 1993 Remedial Investigation Report and a 1996 Environmental Baseline Survey Report have been done.
Cotton and his crew on Tuesday began their subsurface investigation of the landslide by hauling an air-hammer drilling rig up the slippery hillside to drill four to five holes deep into the muddy land mass and the bedrock below.
The combined firm now has 3 offices in New Jersey, plus 22 more offices across the country providing services including Environmental Due Diligence; Subsurface Investigations and Remediation; Regulatory Compliance; Industrial Hygiene; Building Engineering and Consulting; MEP and Structural Design; Marine and Development and Consulting; Public and Transportation Engineering; Waste Management; Water Resources Management; Construction Risk Management; Energy Efficiency and Sustainable Building Consulting and Design; Land Surveying; and Zoning Reports.