A PLAY-BASED EXPLORATION OF CARBON CAPTURE AND STORAGE (CCS) POTENTIAL OF THE ILLINOIS BASIN THE MAJOR OBJECTIVE OF THIS PROJECT IS TO BUILD A DATABASE USING EXISTING SUBSURFACE, SURFACE, AND SOCIETAL DATA FOR ENTITIES SCREENING AREAS OF ILLINOIS FOR COMMERCIAL GEOLOGIC CARBON DIOXIDE (CO2) STORAGE. THE MINOR OBJECTIVES OF THIS PROJECT ARE TO 1) TEST THE DATABASE USING PLAY-BASED EXPLORATION AND ANALYSES METHODS TO CREATE COMPOSITE MAPS THAT CLEARLY DELINEATE AREAS IN THE STATE WITH THE LOWEST RISK FOR STORAGE SITE DEVELOPMENT; 2) SHARE THE DATABASE WITH THE DEPARTMENT OF ENERGY (DOE), THE FOUR EXISTING REGIONAL INITIATIVE (RI) RESEARCH PROJECTS AT THE UNIVERSITY OF ILLINOIS, AND THE AREA OF INTEREST (AOI) 1 RECIPIENTS UNDER DE-FOA-0002799; AND 3) PROVIDE THE PUBLIC WITH ACCESS TO THE DATABASE AND RESULTING COMPOSITE MAPS, SPECIFICALLY THOSE SCREENING ILLINOIS FOR COMMERCIAL STORAGE SITES OR THOSE POTENTIALLY IMPACTED BY THE DEVELOPMENT OF SUCH SITES. IN ACCORDANCE WITH EXECUTIVE AND DOE ORDERS, ANY DATA PRODUCTS GENERATED AS A RESULT OF FEDERALLY FUNDED RESEARCH AND DEVELOPMENT SHALL BE PROVIDED TO NATIONAL ENERGY TECHNOLOGY LABORATORY (NETL) FOR INCLUSION IN THE ENERGY DATA EXCHANGE (EDX), HTTPS://EDX.NETL.DOE.GOV/.