THIS ORDER PERTAINS TO PROPERTY LOCATED AT AND NEAR THE FORMER WAUCONDA SAND AND GRAVEL LANDFILL. THIS ORDER REQUIRES THE RESPONDENTS TO CONDUCT REMOVAL ACTIVITIES DESCRIBED TO ABATE AND IMMINENT AND SUBSTANTIAL ENDANGERMENT TO THE PUBLIC HEALTH, WELFARE OR THE ENVIRONMENT THAT MAY BE PRESENTED BY THE ACTUAL OR THREATENED RELEASE OF HAZARDOUS SUBSTANCES AT OR FROM THE SITE. THE RESPONDENTS SHALL PERFORM AT A MINIMUM, THE FOLLOWING RESPONSE ACTIVITIES:
1. RE-SAMPLE ALL RESIDENTIAL DRINKING WATER WELLS NEAR THE SITE THAT HAVE BEEN SAMPLED WITHIN THE PAST YEAR, ALONG WITH ANY RESIDENTIAL WELLS IN THE HILLCREST SUBDIVISION THAT WERE NOT ABLE TO BE SAMPLED IN PREVIOUS EFFORTS.
2. SAMPLE ANY WAUCONDA AREA RESIDENTIAL DRINKING WATER WELLS NOT ALREADY SAMPLED INCLUDING WELLS IMMEDIATELY NORTHWEST OF THE SITE, WELLS BETWEEN GARLAND ROAD AND THE HILLCREST SUBDIVISION NORTHEAST OF THE SITE, AND WELLS SOUTH OF THE HILLCREST SUBDIVISION INCLUDING WELLS IN THE WELLSMERE HEIGHTS, NORTH SHORE, SPENCER�S HIGHLAND, ELMCREST, AND LAKEVIEW SUBDIVISIONS.
3. CONDUCT SUPPLEMENTAL REMEDIAL INVESTIGATIONS. THIS INCLUDES CONDUCTING HYDROGEOLOGIC AND WATER QUALITY CHARACTERIZATIONS TO FULLY DEFINE THE MAGNITUDE AND EXTENT OF GROUNDWATER CONTAMINATION.
4. CONDUCT A FEASIBILITY STUDY TO EVALUATE REMEDIAL ACTION ALTERNATIVES IN ACCORDANCE WITH CERCLA, THE NCP, US EPA GUIDANCE, AND US EPA�S MODEL RI/FS STATEMENT OF WORK. A FEASIBILITY STUDY MAY BE OF A FOCUSED OR STREAMLINED NATURE.