A study that could determine the future of a second lake supply for Springfield says the volume of water stored in Springfield's gravel pits is much smaller than previously understood.
Aldermen requested the study in order to determine if drawing upon the city's various gravel pits would be a drain upon other area water supplies. The study was presented during Tuesday's Springfield City Council Meeting.
Layne Christensen, who conducted the study, says previous studies determined the city could draw up to 18 million gallons a day during severe drought conditions.
Those studies didn't take into consideration the impact on other area and municipal wells and were done without updated models of Springfield's gravel pits.
The updated study says there would be an impact on other wells during a drought, including impacting the South Sangamon Water Commission wells, whether water is pumped from Springfield's gravel pits or not.
The Army Corp. of Engineers could use this study before they give their input on a second water supply for the city.
A second lake for the City of Springfield has been debated for decades.