Mr. Shack is a registered professional engineer in multiple states and is also a licensed wastewater treatment operator. He has over 40 years’ experience as a process engineer treating all kinds of industrial wastes. He has designed, permitted, started-up, and/or contract operated well over 100 industrial wastewater treatment plants. He is a life member of WEF serving on industrial wastes committee, a peer reviewer for Water Environment Research, as an author/reviewer of two WEF Manuals of Practice. He also holds credentials as a Certified Hazardous Materials Manager, a Certified Professional in Erosion and Sediment Control, and a Certified Professional in Storm Water Quality. Mr. Shack is president of Phoenix Environmental Engineers, Inc. in Nashville. Phoenix designs, upgrades, troubleshoots, and operates industrial wastewater treatment plants.