Since 2000, Courtney has completed numerous Phase I and II Environmental Site Assessments, Modified Phase I ESAs, and Colorado Department of Transportation (CDOT) Initial Site Assessments.  He has served as project manager for Phase I and Phase II ESAs for various CDOT and county road construction projects throughout Colorado.  He has experience with soil and ground water contamination delineation and characterization; soil, vapor, and ground water sampling; remediation system design, installation, and operation; and solid and hazardous waste management.  He has also assisted with permitting, discharge sampling, and reporting for numerous construction dewatering projects.

Since 1998, Jack has conducted geologic and environmental investigations, including Phase I and II Environmental Site Assessments (ESA); site characterization and monitoring; surface and subsurface soil and ground water investigations; contamination excavation; and remediation system design, installation, and operation.  Jack also provides solid and hazardous waste management consultation.