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William Hall has over four decades of experience in the environmental engineering field. Currently serving as an Associate at Hall & Associates since March 1996, William previously worked as a Senior Project Manager at ERM: Environmental Resources Management from July 1988 to March 1996 and as an Environmental Engineer at Hazen and Sawyer from June 1982 to July 1988. William's educational background includes a Master of Science in Environmental Engineering from Manhattan University (1980-1982), a Master's Program in Biology from City College of New York (1976-1980), and a Bachelor of Science in Biology from The City College of New York (1972-1976).