In residential and commercial/municipal land, sloped lawns and impervious surfaces (such as driveways, parking lots, and rooftops) promote runoff to the lake.  This effect is increasingly severe for development located near the lake shore.
	Inadequate septic systems at shoreline residences can also contribute nutrients to the lake.
	In 2002, residential land comprised 5% of the watershed, and commercial/municipal land represented 2%.