Anish R. Jantrania is a Technical Services Engineer at the Virginia Department of Health in Onsite Sewage and Water Program.  He received his B.E. in Agricultural Engineering from the Udaipur University, India in 1982, M.S. in Agricultural Engineering from the Ohio State University in 1985, Ph.D. in Agricultural Engineering from Clemson University in 1989 and M.B.A. from West Virginia University in 1994.   Dr. Jantrania is a registered professional engineer in Virginia, Massachusetts, and West Virginia.  He has served on the technical review committee for revising the U.S. EPA Onsite Design Manual and is currently serving on the NOWRA Model Performance Code primary committee and evaluation committee.

Mark A. Gross is the Training Manager for Orenco systems, Inc. in Sutherlin, OR, and a former Professor of Civil Engineering at the University of Arkansas in Fayetteville, Arkansas.  He has a BS in Civil Engineering, MS in Civil Engineering, and a Ph.D. in Engineering.  Dr. Gross has 20 years of experience in the decentralized wastewater field both as a teacher and as a designer.  He has authored or co-authored over 75 articles in the field.  His research is in the area of decentralized wastewater, currently working on phosphorus removal in soil-based systems.   He maintained an active consulting practice in addition to his university duties, and is a registered professional engineer in Arkansas, Tennessee, Mississippi, Missouri, and Virginia.