MICRON BUILDING #15 - AMMONIA SEGREGATION SCRUBBER - (PCS15-003332) * TO ADD AND EXTENSION ON AN EXISTING PREACTION SYSTEM IN AN APPROXIMATE 760 FT/2 AMMONIA SCRUBBER MECHANICAL PENTHOUSE ENCLOSURE AT THE ROOF OF BUILDING #15, BETWEEN GRID LINES 3&5 AND A&B. THE PENTHOUSE WILL BE CONSTRUCTED AS A PRE-ENGINEERED BUTLER METAL BUILDING ON A CONCRETE SLAB FLOOR OVER A STRUCTURAL STEEL FRAME. THIS PENTHOUSE WILL BE USED AS A MECHANICAL ENCLOSURE FOR TWO NEW EXHAUST SCRUBBER UNITS. ALL CONSTRUCTION PER THE APPROVED PLANS AND ATTACHED COMMENT LIST. BLD00-03472 *JWA*