O'Reilly, Talbot & Okun (OTO) is a specialty geoenvironmental engineering consulting firm.

When environmental problems are more complex than you can handle in-house, turning to outside help makes sense. For 15 years people have turned to us because of our sound technical judgment, our use of cost-effective solutions and our reputation for professional integrity. After working with us once, most choose to work with us again. We have a solution for you. Give us a call and discover the O’Reilly, Talbot and Okun difference.

Recent News


“Spill Bound – O’Reilly, Talbot & Okun Helps Clients Breathe Easier” an interview with Jim Okun by Business West - The Business Journal of Western Massachusetts: http://businesswest.com/spill-bound

OTO adds Lead Inspection to its Capabilities


Lead paint

With a portable XRF analyzer and Massachusetts licensed personnel, OTO now conducts "real-time" lead surveys to evaluate the safety of building materials. Contact us for on-site inspections with instant results. We provide Massachusetts Residential Inspections, HUD Lead Inspections, Pre-renovation lead assessments in accordance with EPA's Renovate, Repair and Paint Rule, and Lead inspections for Certificates of Compliance.

John Henry Promoted to OTO Associate


John Henry, Associate of O'Reilly, Talbot & Okun Associates, Inc.

O'Reilly, Talbot & Okun, Associates, Inc. is pleased to announce the promotion of John Henry to the position of Associate.

Mr. Henry is a Massachusetts and Connecticut licensed Professional Engineer with over 20 years of experience in the civil engineering and environmental consulting fields. He has been particularly active in solar power development projects, as well as soil and groundwater remediation projects at airports, industrial and commercial facilities, schools and religious institutions. Mr. Henry is a Belchertown, Massachusetts resident and a member of the Belchertown Conservation Commission. He received a B.S. in Civil Engineering from the University of Massachusetts at Amherst.

We have a solution for you.

Give us a call and discover the O'Reilly, Talbot & Okun difference.

Call Us at: 413 788-6222

Additional information (blog)

OTO Blog
Connecticut Cleanup Program
Environmental Site Assessment
Mass Contingency Plan (MCP)
PCBs in Schools
PCBs not in Schools
Vapor Intrusion