US WATER COMPANY FAILED TO SATISY THE CLEAN AIR ACT'S GENERAL DUTY CLAUSE IN THAT IT DID NOT USE APPROPRIATE HAZARD ASSESSMENT TECHNIQUES, DESIGN AND MAINTAIN A SAFE FACILITY TO PREVENT RELEASES, AND MINIMIZE CONSEQUENCES OF ACCIDENTAL RELEASES. THE ORDER REQUIRES THE FACILITY TO BUILD A NEW CHLORINE ROOM WHICH WILL MEET CURRENT STANDARDS.