Event mean concentrations for total suspended solids Revision as of 20:54, 10 March 2020 by Mtrojan (talk | contribs)(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff) Event mean concentrations for total suspended solids

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Event mean concentrations for total phosphorus.
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Land cover/land use	Range (mg/L)	Recommended value (mg/L)	Notes
Commercial		75	If applicable to models being used, adjust curve numbers/runoff coefficients when calculating loads
Industrial		93	If applicable to models being used, adjust curve numbers/runoff coefficients when calculating loads
Residential		73
High-density/Multi-family residential		Calculate1	Insufficient information to recommend a specific emc
Medium density residential		Calculate1	Insufficient information to recommend a specific emc
Low density residential		Calculate1	Insufficient information to recommend a specific emc
Freeways/transportation		87
Mixed		76 or calculate	Residential land use was the primary land use in most studies that cited values for mixed land use If the study area can be delineated into specific land uses and impervious area for each land use is know, we recommend calculating the emc
Parks and recreation		Use value for open space or calculate	emc will be a function of vegetative cover
Open space		21
Conventional roof		<10
Institutional		See note
Forest/shrub/grassland
Open water and wetlands		see Notes (next column)	If data exist, use the TSS concentration for the water body of interest If data for a specific lake do not exist, use data from similar lakes in the area
Cropland (row crops)
Pasture