Water Quality
The aquatic health of the Magothy River has been declining in recent years. In 2008 the river was given a health rating of 30%, down from 42% in 2007 and 65% in 2004. The river's overall health score was determined by three contributing factors: underwater grasses, water clarity, and dissolved oxygen. The Magothy scored below par in all three of these categories, the worst of which being the underwater grasses. The Magothy had 90 acres (0.36 km2) of underwater grass mapped in 2008, achieving only 15% of the goal of 579 acres (2.34 km2). The water clarity status in 2008 was only slightly better than SAV status, with 19% of measurements exceeding the 0.97 meter depth which allows underwater grasses enough sunlight to grow, down from 44% in 2007. The Magothy scored the best in 2008 for dissolved oxygen; 55% of measurements exceeded its goal of 5 milligrams per liter, down from 69% in 2007.
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