This report cites the same 3.6E3 km^3 figure (2.91 billion acre-feet) as the amount of "recoverable water" in the aquifer. Do you know if that accounts for the

This report cites the same 3.6E3 km^3 figure (2.91 billion acre-feet) as the amount of "recoverable water" in the aquifer. Do you know if that accounts for the effects you described? https://ne.water.usgs.gov/projects/HPA/index.html https://ne.water.usgs.gov/projects/HPA/index.html edit: from the report Recoverable water in storage is the fraction of water in the aquifer that will drain by gravity and can be withdrawn by wells. The remaining water in the aquifer is held to the aquifer material and generally cannot be withdrawn by wells (Meinzer, 1923).