Ariz. Admin. Code § R18-11-502 - Aquifer Boundaries

A. Except as provided in subsection (B) of this rule, aquifer boundaries for the aquifers in this state are identified and defined as being identical to the hydrologic basin and subbasin boundaries, as found by the Director of the Department of Water Resources, Findings and Order In the Matter of The Designation of Groundwater Basins and Subbasins In The State of Arizona (dated June 21, 1984), pursuant to A.R.S. §§ 45-403 and 45-404, which is incorporated herein by reference, on file and available for public inspection at the Department of Environmental Quality. No later amendments or editions are incorporated by reference.

B. Excluded from the boundaries of the aquifers are hard rock areas which contain little or no water, as identified in Plate 1 of the Department of Water Resources, Water Resource Hydrologic Map Series Report Number 2 (dated January 1981) and as further identified in the Bureau of Mines, University of Arizona County Geologic Map Series (individual county maps dated 1957 through 1960), which are incorporated herein by reference, on file and available for public inspection at the Department of Environmental Quality. No later amendments or editions are incorporated by reference.

C. The Director may, by rule, modify or add an aquifer boundary provided that one or more of the following applies:

1. The Department of Water Resources modifies the boundaries of its basins or subbasins.

2. The Director is made aware of new technical information or data which supports refinement of an aquifer boundary.

D. Facilities located outside of the boundaries defined in these rules shall be subject to A.R.S. § 49-241 except as provided therein.

Notes

Ariz. Admin. Code § R18-11-502

Adopted effective October 22, 1987 (Supp. 87-4). Amended by final expedited rulemaking at 29 A.A.R. 2344, effective 9/22/2023.