state waters; rules; ecological services

HB 2538 amends Arizona law to establish new water quality regulations for the state's waters, directly affecting businesses, municipalities, and agricultural operations that discharge pollutants. The bill requires the director to adopt rules for permitting discharges into "Waters of the United States" (WOTUS) and non-WOTUS protected waters, including exemptions for farming activities, irrigation ditches, and soil conservation practices. Key mechanisms include creating permit programs for point-source discharges, nonpoint-source pollution control, aquifer protection, and reclaimed water reuse, while setting fees for permits that fund water quality programs. These changes update Arizona's regulatory framework to align with federal Clean Water Act requirements for water quality management.