Steve Anderson shared his vast knowledge of the complex wastewater treatment system that keeps the Iowa Great Lakes clean and beautiful on Sept 26th. The IGLSD has been in existence since the late 1930s and was formed following surveys that showed a high level of contamination in drinking water wells. Today the system has 9,000 connections to the system, 64 lift stations, 140 pumps, 100 miles of pipe and 3400 manholes! Water flow to the plant is an average of 2.5 million gallons per day.