Water flows over impervious surfaces or down steep slopes, but erodes and takes objects with it as it moves. Water is controlled to enter storm drains, leading to larger bodies of water or lakes, like Lake Arbor, created for stormwater management. However, everything does not always go as “planned” and when sediment and waste are carried with this runoff into our fresh waters, we speak of eutrophication. An example of this would be when humans over-fertilize their lawns and it precipitates, the excess water running off to larger surface waters takes that fertilizer with it. This results in aquatic plants using this fertilizer to grow and using too much oxygen in the water, leaving not enough for other life forms in the water. In places like the Chesapeake Bay, this is what causes dead zones. People often don't consider that what they do affects places like this due to distance, but that the water has to go somewhere, regardless of which watershed they belong to.