Air Force officials have drafted a report on the possible connection between toxic chemicals in Layton wells and a base Superfund site, but it won't be available until October.

Jim Vining, a spokesman for the environmental branch of the Civil Engineering Squad at Hill Air Force Base, said the report will be made public after it is reviewed by state officials, the Environmental Protection Ageny, Air Force officials at the Pentagon and Utah's congressional delegation."We don't anticipate this is going to be a controversial item, but as a matter of policy, we owe it to our congressmen to let them preview it," Vining said.

The Layton groundwater investigation began in 1987 after base officials discovered trace amounts of trichloroethylene, a solvent that dissolves grease and oils off airplanes. The chemical has been found to cause cancer in mice.

The chemicals appear to have been confined to the wells. Officials haven't found any TCE in drinking water supplies, but the base launched an investigation to determine whether any had migrated south from a closed Air Force dumping pond, Vining said.