I’ve been thinking about subsidence and the damage it does to infrastructure, like the Delta-Mendota Canal and Highway 5. You know what would be handy? A law saying that if the ground level drops some amount (like, say ten feet) due to subsidence, all groundwater pumping in that aquifer should be immediately stopped until the ground surface level above that aquifer comes back up.
Then I got to wondering who pays for the costs of infrastructure repair due to subsidence for overpumping. I bet the State Water Contractors pay for repairs to the Delta-Mendota Canal, so that strikes me as their own private business. But if I were CalTrans, I’d want someone to pay me back for the cost of repairs to Highway 5 and its overpasses. I think the people pumping groundwater so fast that they’re lowering the roadbeds would be good people to pay for the damages they cause to the roads of the state. Can’t see why the larger public should have to pay for that.