Typhoon I think you have moles, not a chipmunk issue. I had them years back. Poisoned them, never came back.
We have both, but the chipmunks are worse. I've gotten rid of a few moles, but there are a LOT more chipmunks.
Every once in a while I find a dead mole that I had nothing to do with, but I think he probably crossed the chipmunk mafia.