Remedial Investigation (RI) /Feasibility Study (FS)
Remedial Planning

  • Data quality objective development
  • Dynamic work plans with decision rule flexibility
  • Risk-based remediation goal development
  • Emerging contaminant (e.g., PFCs) considerations

Triad Approach

  • Systematic planning and negotiation
  • Dynamic work strategies
  • Real-time field analytical services
  • Design operation and maintenance

Sampling/Analysis, Studies, and Modeling

  • Preliminary assessments/site investigation/HRS scoring
  • Remedial investigation/feasibility studies
  • Specialized PFC-free and clean sampling protocols
  • Risk assessment—human health and ecological
  • Natural resources and ecological assessment
  • Groundwater modeling
  • Data validation and usability evaluation

Field Sampling/Reporting

  • Multi-media sampling and field analytical services
  • Treatability and pilot studies
  • Land surveys and GPS positioning

Web-based Data Management

  • Secure, site-specific project websites
  • Electronic database and visualization tools

OTIE delivers remedial investigations, assessments, and studies that include work plans, multi-media sampling, integrated field analytical support, hydrogeologic modeling, and geotechnical investigations, as well as risk assessment, treatability studies, and report preparation. OTIE applies value-added innovative investigation techniques to maximize the data returned on investment. OTIE tailors remedial planning to fit the needs of each customer. Where remedial design is expected, we typically collect anticipated geotechnical data during a remedial investigation to minimize the need for repeated investigation. We typically integrate environmental assessments with site investigations to address ecological and human health risks.

Featured Projects:

CERCLA RI/FS and RD/RA, Pemaco Superfund Site, CA

RI/FS, Pemaco Superfund Site, CA

Remedial Investigation and Removal Action, Nascolite Superfund Site, NJ

RI/RA, Nascolite Superfund Site, NJ

Remedial Investigation, Marine Corps Logistics Base Barstow, CA

RI, MCLB Barstow, CA