09/22/2020 Citizens Reservoir Frequently Asked Questions What is the Citizens Reservoir? Why do we need Geist Reservoir and Citizens Reservoir is an over three billion gallon Citizens Reservoir? water storage facility to be constructed in a The Indianapolis area receives approximately 42 retired limestone quarry adjacent to Citizens inches of rain annually; however, the water supply Energy Group’s Geist Reservoir along Olio Road. is not always available when needed. Heavy rain in excess of Geist Reservoir’s storage capacity How big is the Citizens Reservoir? now flows downstream over the dam. During dry At approximately 230 feet deep, the Citizens periods, stream flows and reservoir supplies can be Reservoir depth is nearly equivalent to the height strained. Citizens Reservoir will store some of the of the Soldiers and Sailors Monument. The 90-acre raw water from excess precipitation that now spills Citizens Reservoir will be able to hold nearly half over the Geist Dam for use during dry periods. the volume of the 1,800 acre Geist Reservoir. The additional volume is enough to provide a year of How will excess water be captured for supply? water supply for over 100,000 Hoosiers. This will be accomplished by diverting excess flow from Geist Reservoir through an intake What purpose does the reservoir serve? structure located between Geist Reservoir and Citizens Reservoir will create a more resilient Citizens Reservoir. The intake structure will allow water supply for Citizens Energy Group’s approximately 100 million gallons per day of customers. Construction of the reservoir will otherwise unutilized water into Citizens Reservoir. ensure sufficient water supplies during periods of drought, and to support continued economic How will excess supply be used? growth and quality of life for the next 20 years. Citizens Reservoir is designed strictly for water During dry periods, up to 30 million gallons per day storage, and as a result, there will be no public of the stored water will be pumped from Citizens access for development and recreation. Reservoir into Geist Reservoir. The water pumped back into Geist Reservoir will flow downstream to Citizens’ Fall Creek and White River Water Treatment Plants for distribution throughout Central Indiana. Comparison Chart Continued on next page CitizensEnergyGroup.com Construction Schedule* *Subject to change CitizensEnergyGroup.com.