It may already be too late. The rate of subsidence in the growing regions of California is astonishing[1]--nearly a foot per year in some places. Some aquifers

It may already be too late. The rate of subsidence in the growing regions of California is astonishing[1]--nearly a foot per year in some places. Some aquifers can take a long, long time to recharge (the rate differs per aquifer) and some aquifers can be damaged by compaction and never recharge[2]. [1] https://www.usgs.gov/centers/ca-water-ls https://www.usgs.gov/centers/ca-water-ls [2] https://www.usgs.gov/media/images/aquifer-compaction https://www.usgs.gov/media/images/aquifer-compaction