Sebago Lake is the water source for Greater Portland, 15% of Maine's population. Sebago Lake is exceptionally clear and soft - clean enough to be exempt from the expensive filtration process required with most surface water sources. 

The lake covers 30,000 acres. The watershed is more than 50 miles long, stretching from Bethel to Standish and includes parts of 24 towns. Seven towns have shore frontage on Sebago Lake

Clearly, the lake is one of Maine's most important natural resources. What makes Sebago Lake so unique is that it doubles as a recreation destination and a water supply. Together, the Portland Water District, area residents, and tourists defend the lake against potential contaminates to ensure the exceptional quality remains for generations to come. If all of the water in Sebago Lake was pumped into 10,000 gallon tanker trucks, each 50 ft. long, and the trucks were placed end to end, they would extend from the earth to the moon and back twice. Information from the Portland Water District website and printed material.

Sebago Lake is comprised of several sections.

1. The Big Bay or Great Basin is five miles in width. 
2. Jordan's Bay is 2 miles in width.
3. The Basin is a small water body accessed from the south east end of Jordan Bay.
4. Lower Bay is a restricted area due to the PWD water supply intakes. In this area there is no swimming but boating is allowed. There is also a public boat launch in that area.