July 31, 2014

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Derek Tomlinson Co-Instructor for Upcoming Course on Vapor Intrusion

Derek Tomlinson, P.E., P.Eng., a Geosyntec senior engineer and hydrogeologist based in Pennsylvania, is a co-instructor for an upcoming course covering in-state regulations for vapor intrusion (VI) mitigation.

The course, "Act 2 Toolkit: Vapor Intrusion," is set for September 17, 2014, at Penn State Great Valley's Musser Auditorium in Malvern, Pennsylvania. It is the first in a series sponsored by the Pennsylvania Council of Professional Geologists (PCPG). Pre-registration is required for attendance.

Mr. Tomlinson's co-instructor is Michael Maddigan, an environmental chemist with the Pennsylvania Department of Environmental Protection (PADEP). Their course is designed to help geologists, engineers, and environmental professionals implement PADEP's VI Policy and learn new methods and approaches to data collection and evaluation. Participants also will discuss proposed updates to the VI Policy that may be implemented in the next year.

Two additional course sessions will be held in fall 2014. The first is set for November 18 in Grantville and the second will be December 9 in Monroeville. Details and pre-registration for these sessions will be posted to the PCPG website.

Mr. Tomlinson has more than 18 years of experience specializing in sites impacted by VI and non-aqueous phase liquids (NAPL) within both porous media and fractured bedrock. He was a contributing member of PADEP's Cleanup Standards Scientific Advisory Board VI Subcommittee, a contributing member of the ASTM guidance for VI assessments and mitigation strategies for real estate transactions (ASTM E2600-08 and E2600-10), and a contributing author to the Petroleum VI Guidance to be published later this year by the Interstate Technology and Regulatory Council (ITRC).

For more information contact Derek Tomlinson in Philadelphia at 267-419-3102 or This email address is being protected from spambots. You need JavaScript enabled to view it..