The facility grounds have been made available to the public . Despite some concerns of vulnerability to an attack on the water supply since the September 11 attacks , the grounds have remained open to the public , but security has been increased . In the summer of 2007 , construction began on the installation of an underground Residual Management Facility allowing processed waste to be removed before discharging into the lake . This construction has since been completed
September 11 attacks
September 11 attacks
R. C. Harris Water Treatment Plant