This bill proposes to amend the definition of "county" in Arizona Revised Statutes section 49-371 to include counties that operate a regulated medium or large separate storm sewer system, in addition to those that operate a small municipal separate storm sewer system. The current law only recognizes counties with small municipal separate storm sewer systems, which limits the scope of local stormwater quality programs. The new language will broaden the definition to encompass a wider range of stormwater management systems, thereby enhancing the regulatory framework for stormwater quality.

Additionally, the bill will remove the term "small" from the existing definition, ensuring that the updated statute applies to both medium and large systems as well. This change aims to align local stormwater quality programs with federal regulations, specifically referencing the relevant sections of the Code of Federal Regulations. Overall, the bill seeks to improve the effectiveness of stormwater management in Arizona by expanding the responsibilities and capabilities of counties in managing stormwater quality.

Statutes affected:
Introduced Version: 49-371
House Engrossed Version: 49-371
Chaptered Version: 49-371