Many utilities and services happen around us every day without us even noticing. There is a sewer manhole close to this cache which eventually reaches the Collinsville sewage treatment plant. The City of Collinsville operates a wastewater treatment plant that is staffed 24 hours per day by Illinois State Licensed Wastewater Treatment Plant Operators. The plant's design capacity is rated at 5.85 million gallons per day. The average daily flow in 2013 was approximately 3.93 million gallons per day (MGD) with a total treatment of 1.44 billion gallons of wastewater. Originally constructed in 1972, the plant has gone through many extensive upgrades and improvements. The most recent improvement, completed in 2012, was an upgrade to increase the plant's capacity to the current rating of 5.85 MGD from 3.5 MGD. It remains a state-of-the-art facility, ensuring full compliance with the Environmental Protection Agency (EPA) regulations and protecting the public's health and environment. The Collinsville Wastewater Treatment Plant was the recipient of the “Illinois Wastewater Treatment Plant of The Year” in 1997. In addition to the processing and treatment of Collinsville's wastewater, the wastewater plant also treats the wastewater from the Village of Maryville and Mounds Public Water District. Facilties like this are part of the hidden works that keep our society working smoothly.
