TWIN FALLS, Idaho (KLIX)-The Snake River Plain Aquifer is getting a checkup this week by state water officials. The Idaho Department of Water Resources along with the US Geological Survey is taking well measurements across southern Idaho.

Tim Merrick with the Department of Water Resources says they try and measure the water level of the aquifer every five years. IDWR employees measure wells from roughly King Hill to the Henry’s Fork Area. The data will help IDWR continue to improve their computer model of the aquifer.

Officials believe the aquifer has an estimated volume of 200 billion cubic feet. It is the main source of drinking water and irrigates a million acres of farmland. It also provides water to the state aquaculture industry.