Ariz. Admin. Code § R18-11-503 - Petition for Reclassification
A.
Any person may petition the Director to reclassify an aquifer from a drinking
water protected use to a nondrinking water protected use pursuant to A.R.S.
§
49-224(C).
B. A written petition for reclassification
pursuant to A.R.S. §
49-224(C) or
A.R.S. §
49-224(D) shall
be filed with the Department and shall include the following categories of
information:
1. The proposed protected use
for which the reclassification is being requested.
2. The pollutant and affected aquifer water
quality standards for which the reclassification is being requested.
3. A hydrogeologic report which demonstrates
that the aquifer proposed for reclassification is or will be hydrologically
isolated, to the extent described in A.R.S. §
49-224(C)(1).
This report and demonstration of hydrologic isolation for the area containing
such aquifer, and immediate adjacent geologic units, shall include at least the
following:
a. Hydrogeologic area maps and
cross sections.
b. An analysis of
subsurface geology, including geologic and hydrologic separation.
c. Water level elevation or piezometric level
contour maps.
d. Analysis of
hydrologic characteristics of the aquifer and the immediate adjacent geologic
units.
e. Description of existing
water quality and analysis of water chemistry.
f. Projected annual quantity of water to be
withdrawn.
g. Identification of
pumping centers, cones of depression and areas of recharge.
h. A water balance.
i. Existing flow direction and evaluation of
the effects of seasonal and future pumping on flow.
j. An evaluation as to whether the
reclassification will contribute to or cause a violation of aquifer water
quality standards in other aquifers, or in parts of the aquifer not being
proposed for reclassification.
4. Documentation demonstrating that water
from the aquifer or part of the aquifer for which reclassification is proposed
is not being used as drinking water. This documentation shall include at least
the following:
a. A list of all wells or
springs including their location, ownership and use within the aquifer or part
of the aquifer being proposed for reclassification.
b. Identification of groundwater withdrawal
rights, on file with the Department of Water Resources, within the aquifer or
part of the aquifer being proposed for reclassification.
c. A comprehensive list of agencies, persons
and other information sources consulted for aquifer use
documentation.
5. A
cost-benefit analysis developed pursuant to the requirements of A.R.S. §
49-224(C)(3),
except for petitions submitted pursuant to A.R.S. §
49-224(D). This
analysis shall identify potential future uses of the aquifer being proposed for
reclassification, as well as other opportunity costs associated with
reclassification, and shall contain a description of the cost-benefit
methodology used, including all assumptions, data, data sources and criteria
considered and all supporting statistical analyses.
Notes
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