Mark H. Weir EIT. Ph.D. is currently an Assistant Professor of Public Health at Temple University, where he is continuing to advance environmental and engineered systems modeling techniques for water and air hazards. He is also working to develop web and tablet based computational tools for the public and government decision makers so the most advanced modeling techniques are available to these communities. He currently has a collaborative partnership with the Center for Sustainable Communities at Temple to further the extent of these research goals. Mark is also leading a complete revamp of the Environmental Health curriculum to enhance the quantitative skills of students graduating with an MS in Environmental Health. He is also working to develop an Environmental Health Engineering major program in conjunction with the College of Engineering at Temple University. Mark earned his B.S. In Environmental Engineering from Wilkes University in 2004, where he worked as a student researcher. At Wilkes Mark researched physical dynamics of natural systems and anthropogenic wetland optimization. He also developed coupled models to describe pressure control in water distribution systems. He earned his Ph.D. in Environmental Engineering from Drexel University under the mentorship of Dr. Charles N. Haas. Mark further developed his environmental and engineered systems modeling skills while at Drexel, and tied these modeling techniques with QMRA. After completing his thesis in 2009, which developed a new framework for microbial dose response modeling he worked as a Visiting Research Associate and Associate Director of the Center for Advancing Microbial Risk Assessment (CAMRA) at Michigan State University (MSU). While at MSU he helped build the first iteration of the CAMRA Wiki and establish a predictive QMRA tool for the EPA, that has been expanded to other applications from its original concept. In 2011 he accepted a position as an Environmental Engineer with the United States Environmental Protection Agency (USEPA), Office of Ground Water and Drinking Water and Office of Science and Technology. While at the USEPA Mark participated in writing parts of the Lead and Copper Rule, and CCL4 as well as providing science support for the Perchlorate and cVOC rules as well as the development of new recreational criteria models.