San Diego water rates will rise nearly 20 percent over the next two years after a divided City Council approved Tuesday the first comprehensive rate hike in nearly eight years.

The rate increases, approved by a vote of 5-3, will come in three parts: A 5 percent hike on Dec. 1, a 5.2 percent increase next July 1 and an 8.75 percent jump in January 2025. An earlier version of the proposal would have raised the rates more quickly — by 10.2 percent on Dec. 1 and 8.75 percent in January 2025.