Local+Water+Usage

What is our local watershed and approximately how much area does that represent? And how much water flows through it? Where do we get our drinking water?
 * Minnehaha Creek Watershed District includes all or part of 27 cities and 2 townships im Hennepin and Carver counties.
 * The district covers about 181 square miles that ultimately drain into the Minnehaha creek.
 * The watershed includes the Minnehaha Creek, Lake Minnetonka, The Minneapolis Chain Of Lakes, and the Minnehaha Falls.
 * There re 8 major creeks and 129 lakes and many wetlands in the MCWD.