NATURE OF CASE THE BAIRD AND MCGUIRE FACILITY, LOCATED IN HOLBROOK, MA, HAS OPERATED AS A CHEMICAL COMPANY SINCE THE EARLY 1900'S. DURING PART OF THIS PERIOD THE COMPANY MANUFACTURED PESTI- CIDES, FLOOR WAXES, DISINFECTANTS AND OTHER CHEMICALS. IT IS NOT KNOWN WHEN THE CHEMICAL MANUFACTURING OPERATION TER- MINATED. THE FACILITY HAS IN RECENT TIMES OPERATED AS A CHEMICAL BATCHING PLANT, MIXING AND PACKAGING PESTICIDES, HERBICIDES, EMULSIFIERS, FLOOR WAXES, STRIPPERS, DISINFEC- TANTS, COAL TAR EMULSIFIERS, AND ASSOCIATED PRODUCTS. BAIRD AND MCGUIRE WAS LISTED ON THE NATIONAL PRIORITY LIST (NPL) ON 12/30/82; THE SITE RANKED 18 ON THE NPL. WITH REGARD TO PHYSICAL LAYOUT, THE FACILITY IS LOCATED ON A HILLSIDE WITH THE CHEMICAL BATCHING OPERATION SITUATED NEAR THE TOP OF THE HILL. THIS OPERATION INCLUDES A TANK FARM (APPROXIMATELY 30 TANKS OF VARIOUS TYPES), A MIXING VAT BUILDING, A LAB BUILDING, A WAREHOUSE SITUATED AT THE BOTTOM OF THE HILL AND AN OFFICE. TO THE EAST OF AND DOWNHILL FROM THE BATCHING OPERATION IS A DISTURBED AREA WHICH APPEARS TO HAVE BEEN A SAND & GRAVEL PIT AT ONE TIME. AT THE BASE OF THE HILL IS A 'SEEP' WHERE GROUNDWATER LADEN W/ CREOSOTEAND OTHER CONTAMINANTS DIS- CHARGES TO THE GROUND SURFACE. THIS SEEP IS CAUSED BY THE INTERSECTION OF THE WATER TABLE W/ THE GROUND SURFACE OF THE SITE DURING PERIODS OF HEAVY RAINFALL.