O'Reilly, Talbot & Okun (OTO) is a full service environmental,
safety, health and geotechnical engineering firm.

Started in 1994 by the three principals, the firm now has a full-time staff of 25 with offices in Springfield and Westborough, Massachusetts, as well as Manchester, Connecticut. We have an impressive client list that includes businesses, government and institutions from around New England.

News and Publications
September, 2007: Bruce Nickelsen of OTO discusses the dangers of oil tanks in basements and backyards - undetected leaks contaminate soil and groundwater areas.
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May, 2007: Paul Tanner of OTO discusses how to identify and control the intrusion of harmful vapors in buildings - cancer-causing and radioactive radon gas can be present in the air.
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