Water - As enacted, authorizes municipal water and sewer systems to undertake certain projects on private property. - Amends TCA Title 7; Title 63; Title 65; Title 68 and Title 69.

SB 639 increases the advance notice period for meetings of Tennessee's Board of Water Quality, Oil, and Gas from five to seven days. This change applies directly to board members, requiring organizers to notify them seven days in advance of all regular or special meetings. The bill amends specific sections of Tennessee law (TCA Titles 7, 63, 65, 68, and 69) to implement this updated notice requirement. The policy change is procedural, focusing solely on meeting scheduling transparency without altering substantive water or resource regulations.