AZ HB2195

Amends Arizona Revised Statutes section 49-245 to establish permitting requirements for on-site wastewater treatment facilities with design flows of 3,000 gallons per day or more.

On-site wastewater treatment facilities with design flows between 3,000 and 74,999 gallons per day may discharge under a general permit if operated by a service provider certified by the technology manufacturer, with additional maintenance, monitoring, recordkeeping, and reporting requirements.

For facilities with design flows of 50,000 gallons per day or more, or multiple facilities with a collective design flow of 50,000 gallons per day or more, the director may require adequate financial assurance.

Directs the director to establish fees for general permits issued under the new on-site wastewater treatment facility provisions, with fees deposited into the Water Quality Fee Fund.

Requires permittees to transition their facilities to comply with revised on-site wastewater treatment facility permit rules within 180 days after the revised rules become effective (proposed after December 31, 2024).