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Revision as of 16:41, 15 July 2015

Typical event mean concentrations for total phosphorus
Link to this table

Land cover/land use Total phosphorus (mg/L)
Cropland1 0.32
Forest/shrub/grassland11 0.04
Open water1 0.01
Wetlands1 0.01 to 0.043
Freeways2 0.25
Commercial1,2 0.22
Farmsteads1 0.46
Industrial1,2 0.26
Residential2 0.30
Multi-family residential1,2 0.27 to 0.32
Parks and recreation1 0.04
Open space1,2 0.31
Public/semi public (institutional)1,2 0.18

1 Minnehaha Creek Watershed district, 2003
2 Robert Pitt et al., 2004
3 Average for large wetlands and wetland complexes. Individual wetlands should be monitored to determine source/sink behavior.