ASBESTOS REMOVAL WORKERS OF MONSON SERVICES, INC., REFUSED TO GIVE ACCESS TO USEPA INVESTIGATORS, WHILE REMOVING ASBESTOS AT JOLIET CENTRAL HIGH SCHOOL, ALLEGING INVESTI- GATORS DID NOT HAVE PROPER CREDENTIALS. ACCESS WAS ULTI- MATELY GAINED. MONSON WROTE LETTER TO REGION V COMPLAIN- ING OF USEPA CREDENTIAL POLICY AND DEMEANOR OF INVESTIGA- TORS. A RESPONSE TO THAT LETTER NEEDS TO BE MADE.