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Latest revision as of 17:13, 8 December 2022

image of eutrophication
Photo of a eutrophic lake, a result of excessive phosphorus loading.
map of phosphorus impairments
Map showing lakes (blue) and streams (red) impaired for eutrophication (phosphorus) or proposed for inclusion on the impaired waters list.

The United States Geological Survey states: "Phosphorus is a common constituent of agricultural fertilizers, manure, [urban runoff], and organic wastes in sewage and industrial effluent. It is an essential element for plant life, but when there is too much of it in water, it can speed up eutrophication (a reduction in dissolved oxygen in water bodies caused by an increase of mineral and organic nutrients) of rivers and lakes." Phosphorus is an important contributor to surface water impairments in Minnesota, as illustrated in the map to the right.

This page provides links to other pages in this manual or other information related to phosphorus, phosphorus in stormwater, and managing phosphorus in stormwater.

Phosphorus in stormwater

This page provides information on phosphorus in urban stormwater, including a discussion of sources of phosphorus and management strategies for minimizing phosphorus loading from urban stormwater runoff to surface water.

Amended media or systems engineered to retain phosphorus

Engineered (bioretention) media and phosphorus leaching

This page was last edited on 8 December 2022, at 17:13.