Ariz. Admin. Code § R18-11-407 - Aquifer Water Quality Standards in Reclassified Aquifers

A. All aquifers in the state are classified for drinking water protected use except for aquifers which are reclassified to a non-drinking water protected use pursuant to A.R.S. § 49-224 and A.A.C. R18-11-503.

B. Aquifer water quality standards for drinking water protected use apply to reclassified aquifers except where expressly superseded by aquifer water quality standards adopted pursuant to subsection (C) of this Section.

C. The Director shall adopt, by rule, aquifer water quality standards for reclassified aquifers within one year of the date of the order reclassifying the aquifer to a nondrinking water protected use. The Director shall adopt aquifer water quality standards for reclassified aquifers only for pollutants that are specifically identified in a petition for reclassification as prescribed by A.R.S. § 49-223(E) and A.A.C. R18-11-503(B) . Aquifer water quality standards for reclassified aquifers shall be sufficient to protect the use of the reclassified aquifer.

Notes

Ariz. Admin. Code § R18-11-407

Adopted effective January 4, 1990 (Supp. 90-1). Amended effective August 14, 1992 (Supp. 92-3). Amended by final expedited rulemaking at 29 A.A.R. 2344, effective 9/22/2023.