Abstract: The Rocky Mountain Arsenal Wildlife Refuge: Groundwater Contamination, Water Resources and Public Perception

Barbara O'Grady

The Rocky Mountain Arsenal (RMA) is 27 square miles of prairie located 7 miles northeast of metropolitan Denver, Colorado, and only minutes from the new Denver International Airport. Its history is a composite of America's most tumultuous days, spanning three wars in one century. Most recently, the RMA has become the home of endangered species and wildlife that have taken refuge there to escape Denver's urban sprawl.

The occurrence of RMA-related contaminants in the ground water as a result of waste disposal practices used during its operational phase has prompted an interest in better understanding of the nature and extent of contamination in the aquifers used in the rural community immediately down-gradient. Public concern over the health effects of exposure to RMA-related chemicals is in direct conflict with the public relations efforts in progress to promote the RMA as a premier wildlife refuge.

Aquifer study combined with an effort to research historical well data have helped in understanding the migration pathways for the contaminant plumes in the Offpost OU. The effects of local basin faulting, poorly constructed and deteriorating wells, and interaquifer communication are being investigated. These geologic issues are important in achieving a cleanup that is acceptable to the public and the parties involved at the RMA. Plans for future use of these lands and water resources hinges on a comprehensive solution.

AAPG Search and Discovery Article #90986©1994 AAPG Annual Convention, Denver, Colorado, June 12-15, 1994