This report of the Indian Firming Study Commission will provide as background an overview and description of the State’s obligation for Indian Firming and an overview of the modeling efforts completed by Arizona Department of Water Resources staff to determine the estimated volumetric obligation for Indian Firming. Additionally, this report will summarize the solution elements reviewed by the Study Commission, including the water supply availability analysis and a review of the estimated cost and availability of funds to meet the obligation. Finally, the report will provide the recommendations from the Study Commission to the Arizona Legislature.

The Arizona Department of Transportation, the Arizona Game & Fish Department and the Arizona State Parks Board are required to conduct a study every three years on watercraft fuel consumption and recreational watercraft usage. The fuel consumption data is collected to determine the allocation of motor vehicle fuel tax to the State Lake Improvement Fund. The information on recreational watercraft usage patterns on Arizona’s lakes and rivers is necessary, in part, to determine the distribution of SLIF funds to applicants.