Dr. Charles Humphrey gave, earlier this week, a keynote presentation titled, “System, Landscape and Watershed-Scale Treatment of Nitrogen by Onsite Wastewater Systems” during the NC Onsite Water Protection Conference 2021 in Raleigh, NC. He also gave a second presentation titled, “Comparison of Nutrient Treatment by Septic, Sewer, and Package Plant Wastewater Systems”. Dr. Humphrey noted that several alumni of the ECU Environmental Health Sciences Program were in attendance at the conference.