INT ENTERING INTO THIS CONSENT ORDER, THE MUTUAL OBJECTIVES OF EPA AND RESPONDENTS ARE: TO DETERMINE FULLY THE NATURE AND EXTENT OT THE THREAT TO THE PUBLIC HEALTH AND WELFARE OR THE ENVIRONMENT, IF ANY, CAUSED BY THE RELEASE OR THREATENED RELEASE OF HAZARDOUS SUBSTANCES, POLLUTANTS, OR CONTAMINANTS AT THE BROOKHURST SUBDIVISION SITE(REMEDIAL INVESTIGATION) AND TO EVALUATE ALTERNATIVES FOR THE APPROPRIATE EXTENT OF REMEDIAL ACTION NECESSARY TO PREVENT OR MITIGATE THE MIGRATION OR RELEASE OF HAZARDOUS SUBSTANCES, POLLUTANTS, OR CONTAMINANTS FROM THE BROOKHURST SUBDIVISION SITE(FEASIBILITY STUDY).