This study evaluates the hydrogeology and thermal conditions of the Mid-Devonian Carbonate Aquifer System (MDCAS) over northeastern British Columbia from T81, R13W6 in the southeast to l/94-O-13 in the northwest. Deliverables include drill stem test (DST) recovery, CO₂, H₂S, head, salinity, temperature gradient, isotherm, structure and reservoir quality maps as well as various pressure vs elevation plots.