Water - As enacted, requires the department of environment and conservation to add water system projects located in counties having a population of less than 57,000 according to the 2020 census, or a subsequent census, to the priority list for consideration for loans from the water system revolving loan fund. - Amends TCA Title 68, Chapter 221.

SB 2175 requires Tennessee's Department of Environment and Conservation to prioritize water system projects in counties with fewer than 57,000 residents (based on the 2020 or later census) for consideration for loans from the water system revolving loan fund. It defines "rural county" as having a population below 57,000 and amends state law to automatically include such projects on the priority list. This change directly affects water infrastructure projects in smaller counties by ensuring they receive automatic consideration for funding. The bill modifies existing law to streamline access to loan programs for rural water systems without altering the fund's structure or funding levels.