"It's not a process facility," Huffman told reporters. "[Freedom Industries] simply brought the materials in and they stored them in the tanks, then they shipped them out. There are no processes, no water discharges. There are no air discharges, so there is not a water permit at this time."
State officials continued to decline to give out much information about exactly how residents should flush out their home systems once the water company's distribution system is deemed clear.
Bowling said those protocols would be provided "when the timing is right," and Tomblin cautioned residents not to try to move things too quickly.
"Please don't jump ahead," the governor said. "That green light has not been given yet."
McIntrye said he could not provide definitive information about whether any of the chemical would cling to the insides of home piping, water tanks or appliances.
"I wish I could speak to that with some authority," McIntrye said. "This is a highly soluble compound . . . The information I have is, 'I don't believe.' It's an opinion, and it's the best I can offer."
Once water is found acceptable for normal use, flushing can begin -- zone by zone -- to not strain the system.
"We need to get samples at different points within the zones to verify that the water we're putting out at the treatment plant is completely through that zone, and then we will be able to lift that order for that zone," McIntyre said.
The zones where flushing would begin first include downtown Charleston, the East End Kanawha City, South Charleston, the West Side and North Charleston. Those areas include four major hospitals.
An Internet based mapping system is being created for customers to search their home or business address to see what zone they are in and if they should begin flushing. It will be available at www.westvirginiaamwater.com, but it is not yet live. A 24-hour hotline is also being established, officials announced.
Ten people have been hospitalized at area hospitals with symptoms consistent with chemical exposure, Bowling said.
An additional 169 people have been treated at hospitals and released. There have been 1,045 calls to the West Virginia Poison Center concerning human exposure and 65 calls concerning animal exposure. Bowling said that the number of people calling poison control has begun to decline.
The chemical leaked out of a one-inch opening in a 35,000 gallon tank. A retaining wall surrounding the tank, supposed to serve as a failsafe, was scheduled for $1 million in repairs.
The company didn't report the chemical spill until nearly an hour after DEP officials were already on site, and nearly four hours after citizens began complaining about the licorice odor that the leak caused. Huffman said the company has been cooperative in remediation efforts along the river.
Tanks that held Crude MCHM at the facility are being cleaned and will soon be cut apart, DEP official Mike Dorsey said. Booms continue to be in the river in order to catch the chemical as it leaches from soil.
"There will be quite a bit of work off into the future after this emergency is over, and that will involve removing tanks, removing concrete and replacing materials that are on the site with better material," Dorsey said.
Dorsey said he is confident the flow of Crude MCHM has been stopped from the tank, but he said it's not known how much remains in the soil.
"I suspect it's going to leach out of that riverbank for some time," Dorsey said. "We will maintain booms and dikes that are boosted pads in there to keep the stuff up and keep it from going into the river."