Hi all;
I know the rules have changed over time here in CA. I know of a old station here in Goleta that has not been a gas station for many years now and the tanks are still in the ground. When the pumps were taken out the tanks were filled with drilling mud. At that time it was the way things were done. Infact one tank is now under a main road. I do know the state wants the tanks but no one wants to pay for it.

Dave