It's so close they can almost taste it.

Four days after water restrictions were imposed in southwest West Virginia following a chemical spill, officials on Monday will begin to issue "zones" where residents can again use tap water.

The zones will be announced after an 8 a.m. ET meeting of an interagency water quality team, according to Linda Jordan with the West Virginia American Water Co. When the restrictions will be lifted wasn't immediately clear.

"I believe that we're at a point where we can say that we see light at the end of the tunnel," West Virginia Gov. Earl Ray Tomblin told reporters Sunday. "Our team has been diligent in testing samples from throughout the affected area."