We do have this in California, and it's not just aquifers that suffer salt water intrusion. Most people know that LA wouldn't exist if we didn't pump a good ch

We do have this in California, and it's not just aquifers that suffer salt water intrusion. Most people know that LA wouldn't exist if we didn't pump a good chunk of the Colorado to satisfy its thirst. But we also pump a lot of northern california water down there with a massive state aqueduct project. Currently in the delta between SF and Sacramento, there's a huge infrastructure project going on called the Bay Tunnels. It wants to install a pair of water tunnels upstream of the delta to pump water to these state aqueducts that eventually send it down to LA. One reason it's controversial is because pumping out that much water upstream of the delta would cause salt water to encroach up the delta, quite literally salting the fields and causing other watershed environmental issues. More reasons include who's going to pay for it: http://www.latimes.com/opinion/op-ed/la-oe-leslie-costs-and-benefits-delta-tunnel-20161120-story.html http://www.latimes.com/opinion/op-ed/la-oe-leslie-costs-and-...