Allow county water and/or sewer districts to connect to a system beyond capacity

This bill allows county water and sewer districts to connect to water or wastewater systems that have exceeded their rated capacity, provided the connection is authorized by an approved development plan. It directly affects county water districts, county sewer districts, and county water and sewer districts that meet specific eligibility requirements including incorporation under state law, compliance with discharge permitting rules, and employment of a professional engineer. The legislation amends multiple sections of Montana's code to establish this exception to capacity limits while maintaining oversight through the Department of Environmental Quality and requiring adherence to existing environmental standards.