Mr. Cahill is currently a Technical Director in Environmental Resources Management's Performance & Assurance Group located in Malvern, PA. He has over 35 years of professional EHS experience with industry and consulting. He is the principal author of the widely used text, Environmental, Health and Safety Audits, published by Government Institutes, Inc. and now in its 9th Edition. He contributed four chapters in the 1995 text Auditing for Environmental Quality Leadership, published by John Wiley & Sons, Inc. Mr. Cahill has published over 60 articles and has been quoted in numerous publications including the New York Times and the Wall Street Journal. He has been a guest lecturer at the graduate schools of Duke University, Northwestern University, and the New Jersey Institute of Technology.