OVERVIEW ENCLOSED IS A MODIFIED WORK PLAN WITH A SCOPE THAT CAN BE ACCOMPLISHED WITHIN THE PLANNED FUNDING LEVEL FOR THIS INVESTIGATION. OWING TO PROGRAMMATIC CONSIDERATIONS AND CONSTRAINTS THE PERIOD OF PERFORMANCE FOR THIS PROJECT WAS REDUCED FROM 3 YEARS TO 2 YEARS AND IT WAS FUNDED AT A SIGNIFICANTLY LOWER LEVEL THAN ORIGINALLY PROPOSED. IN REVISING OUR WORK PLAN WE HAVE CAREFULLY REVIEWED THE PANEL EVALUATION COMMENTS AND ALSO WORKED WITH OUR CO-INVESTIGATORS TO DETERMINE HOW BEST TO PROCEED. IT WAS DETERMINED THAT THE TASKS ORIGINALLY PROPOSED BY THE USGS TEAM MEMBERS COULD NOT BE SUPPORTED UNDER THE REVISED BUDGET. THE USGS TEAM MEMBERS (GADDIS HAGERTY AND OSTRACH) WILL REMAIN PART OF THE PROJECT AS COLLABORATORS AND WILL CONTINUE TO CONTRIBUTE TO THE PROPOSED INTERPRETATIONS. THE MAPPING AND COMPOSITIONAL TASKS REQUIRING SIGNIFICANT WORK EFFORT HOWEVER WERE SHIFTED TO THE PI (STOPAR). UNFORTUNATELY THE THORIUM FORWARD MODELING TASK WAS DEEMED INFEASIBLE WITHIN THE NEW CONSTRAINTS. THE ORIGINALLY PROPOSED EXPLORATION TASK WAS ALSO DESCOPED DUE TO THE REDUCED TIME CONSTRAINTS. IT WAS FURTHER DETERMINED THAT THE NUMBER OF GEOLOGIC FEATURES THAT COULD BE EXAMINED IN THE SHORTENED TIME PERIOD WOULD NEED TO BE LESS THAN ORIGINALLY PROPOSED. OTHERWISE THE PROPOSED TASKS AND SCIENCE OBJECTIVES REMAIN UNCHANGED AND WE BELIEVE WE CAN STILL MAKE SIGNIFICANT PROGRESS IN UNDERSTANDING THE DIVERSITY OF THE IRREGULAR MARE PATCHES AND THEIR ORIGINS. THE DESCOPE SCIENCE OBJECTIVES ARE OUTLINED BELOW. WE ARE APPRECIATIVE OF THE PROGRAM OFFICERS WILLINGNESS TO WORK WITH US AS WE REVISED THIS PROPOSAL.