RESPONDENTS SHALL PERFORM ALL ACTIONS NECESSARY TO IMPLEMENT THE STATEMENT OF WORK. THE ACTIONS TO BE IMPLEMENTED GENERALLY INCLUDE, BUT ARE NOT LIMITED TO, THE FOLLOWING: (1) SURVEY OF THE AREA OF INTEREST; (2) INSTALLATION AND MAINTENANCE OF FENCING SURROUNDING THE AREA OF INTEREST; AND (3) POSTING AND MAINTENANCE OF METAL SIGNAGE ON THE FENCE SURROUNDING THE AREA OF INTEREST WITH THE FOLLOWING MESSAGE: WARNING NO TRESPASSING HAZARDOUS SUBSTANCES BENEATH THE SURFACE OF THE FENCED AREA .