In the spring of 1994, parts of Johnson City, Tennessee and a large portion of east Tennessee received its normal annual rainfall in a period of four months. The rainfall began in December 1993 and finally ceased in May 1994. The large amount of rainfall caused the ground water table in many areas to rise and inundate low-lying areas (i.e., sinkholes) not previously known to flood. The City of Johnson City was plagued with this problem and initiated an endeavor to conduct a study pertaining to ground water basin delineation for sinkhole flood prevention. The region of largest concern for the City of Johnson City was an area planned for immediate potential growth. The growth area was located in a high density sinkhole area within the northwest quadrant of the city. Literature search, field reconnaissance, and ground water (dye) tracing tasks were undertaken to delineate the ground water basins in the study area and surmise the general ground water flow direction. The ultimate goal of the project is to develop a policy and city ordinance concerning development/drainage in and around sinkholes.