Foothill Municipal Water District covers about 22 square miles in the foothills of the San Gabriel Mountains, bordered between the City of Pasadena on the east and the City of Glendale on the south and west. The District serves approximately 80,000 people with 8 member agencies.

While a majority of these retail water agencies pump local groundwater, they may purchase additional water from Foothill to meet their demands. Foothill takes delivery of water from MWD at a connection near the Rose Bowl in Pasadena and must pump up into the service area to deliver to its member agencies. Before reaching Foothill, MWD treats the imported water to drinking water quality standards.

As Foothill once provided only about 20 percent of the water needed to satisfy demand in its service area, today it supplies more than half of the region’s annual demand.