HB2186 is a bill that amends Arizona's laws regarding the management of brackish groundwater within Active Management Areas (AMAs). It defines brackish groundwater, sets forth a framework for its withdrawal and use, and requires an approved plan from the Arizona Department of Water Resources (ADWR). The bill mandates metering and reporting of withdrawals, desalination for potability, and the return of treated water to the original withdrawal area. It also establishes an annual withdrawal limit of 65,000 acre-feet for remedial action projects across all AMAs and modifies the definition of "hazardous substance" to include certain substances when found above EPA-set levels in public water systems.

The bill simplifies the application process for brackish groundwater plans and repeals certain requirements from the current law. It eliminates the need for written notice from ADEQ or EPA for the use of remedial groundwater and the requirement to send a copy of a proposed remedial action plan to potentially responsible parties. Additionally, it repeals the exemption for certain hazardous substances from investigation and certain requirements for the amendment of assured water supply rules. The bill includes new definitions and technical changes, streamlining the regulatory process for the management of brackish groundwater and remedial action projects.

Statutes affected:
Introduced Version: 45-561, 45-576.01, 45-581, 45-581.01, 45-581.02, 49-201, 49-281, 49-287.04, 45-802.01, 45-402, 45-564, 45-568, 45-463, 49-282.03, 45-576, 45-576.03, 45-858.01, 45-859.01, 45-860.01, 45-632, 49-243, 92-500, 49-203, 49-922, 49-223, 49-241.01, 49-241, 49-221, 93-523, 95-190, 49-292.01, 49-292.02, 49-287.01, 49-282.06, 49-282, 49-1001, 49-283.02, 49-282.05, 49-285, 49-285.01, 49-287.06, 49-287.07, 49-287.02, 49-225, 45-605, 49-282.04, 30-651, 30-656
House Engrossed Version: 45-561, 45-576.01, 45-581, 45-581.01, 45-581.02, 49-201, 49-281, 49-287.04, 45-802.01, 45-402, 45-564, 45-568, 45-463, 49-282.03, 45-576, 45-576.03, 45-858.01, 45-859.01, 45-860.01, 45-632, 49-243, 92-500, 49-203, 49-922, 49-223, 49-241.01, 49-241, 49-221, 93-523, 95-190, 49-292.01, 49-292.02, 49-287.01, 49-282.06, 49-282, 49-1001, 49-283.02, 49-282.05, 49-285, 49-285.01, 49-287.06, 49-287.07, 49-287.02, 49-225, 45-605, 49-282.04, 30-651, 30-656
Senate Engrossed Version: 45-561, 45-576.01, 45-581, 45-581.01, 45-581.02, 45-581.03, 45-581.04, 45-581.05, 49-201, 45-802.01, 45-402, 45-564, 45-568, 45-463, 49-282.03, 45-576, 45-576.03, 45-858.01, 45-859.01, 45-860.01, 45-411.01, 45-632