Letterle employs a staff of licensed geologists and engineers, project managers, staff scientists and field technicians that can professionally handle your remediation project, property transfer or a myriad of other compliance projects.   We have managed over 180 projects helping our clients meet their environmental challenges in the most cost-effective professional way possible.

ASSESSMENT SERVICES

Letterle has substantial experience performing environmental investigations and assessments for numerous clients at current and former industrial and commercial facilities.

Our staff of qualified professionals has experience in conducting:

  • Environmental site investigations and characterizations
  • Phase I and II Environmental Site Assessments
  • Groundwater fate and transport modeling
  • Human health and ecological risk assessments
  • Due diligence audits
  • Property transfer assistance
  • Geophysical investigations
  • Aquifer characterization
  • Underground storage tank closure assessments
  • Vapor intrusion investigation, monitoring and modeling
  • Groundwater modeling and monitoring
Main Office
2859 Oxford Boulevard
Allison Park, PA 15101
Phone: 412-486-0600
Fax: 412-486-0674
Email: tjennewine@letterleassociates.com
Franklin Office
191 Howard Street, Suite 108
Franklin, PA 16323
Phone: 814-432-2167
Fax: 814-432-2632
Email: tkier@letterleassociates.com
Bellefonte Office
629 East Rolling Ridge Drive
Bellefonte, PA 16823
Phone: (814) 355-2241
Fax: (814) 355-2410
Email: streschow@letterleassociates.com