Southeast Boise Ground Water Management Area

The Southeast Boise GWMA, located in Ada County, was established by the Director, IDWR, on October 14, 1994. The Order establishing the management area and included the requirement for the formation of an advisory committee. This precedent-setting requirement delineated the responsibilities and membership for the advisory committee. On March 9, 2001, the advisory committee submitted a management plan for the GWMA. IDWR subsequently adopted the plan in September 2002.

The Order also required that all ground water users diverting more than 0.20 cubic feet per second (cfs) submit annual reports of water use to IDWR. A separate Order requiring measuring devices, signed on April 4, 1995, was issued to 17 ground water users holding a total of 28 water rights diverting more than 0.20 cfs.

The Southeast Boise GWMA is the second ground water management area in the Treasure Valley. The Boise Front Geothermal GWMA was designated in 1987. The boundaries partially overlap, however, the Boise Front Geothermal GWMA is designated for ground water with temperatures greater than 85 degrees F. The Southeast Boise GWMA designates a specific cold water aquifer unit, commonly described as the Boise- Fan aquifer.

Ground water levels in wells are measured periodically in the area. Current hydrographs of the wells can be viewed using the Online Ground Water Level Database or figures showing annually-updated hydrographs for selected wells can be viewed here.