Thavarajah Raviraj

Terraprobe Inc.

Geotechnical Services - borehole investigations - slope stability analysis - retaining wall design Materials Testing and Inspection Services - field density (compaction) testing - field concrete testing (slump, air, compressive strength) - reinforcing steel inspections - foundation inspections Environmental Services Environmental Site Assessments: - Phase I and Phase II Environmental Site Assessments by MOE "Qualified Persons" (QPRSC) - Risk Assessment (including Human Health and Ecological RA's); site characterization (soil, surface water and ground water), modeling; design of engineered control measures by MOE "Qualified Persons" (QPRA) Site Clean-Up and Brownfield Remediation: - Soil and ground water management plans - Waste and tank removal monitoring - Confirmatory testing and certification Landfill Evaluation and Design: - Waste characterization - Landfill monitoring programs: methane gas and leachate - Geomembrane liner systems - Environmental assessment and approvals Hydrogeological Services Ground Water Resources - Studies for land development, water balance/budgets, ground water/surface water interactions - Evaluation for domestic and municipal supply wells - Pumping tests and aquifer performance testing - Source Water Protection and delineation of wellhead protection areas and GUDI studies - Drinking water quality assessment - Monitoring of rural water supplies, door-to-door surveys, well impact assessments - Construction dewatering studies - Permit to Take Water applications and approvals Sewage Systems - Septic and sewage disposal system design - Monitoring and Reasonable Use assessment for landfills, sewage lagoons and other waste water systems Contaminant Hydrogeology - Analysis of ground water contaminant flow and attenuation - Ground water remedial action plans - Monitoring programs and compliance reports