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Revision as of 10:19, 10 January 2020

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Event Mean Concentrations of pollutants in stormwater runoff by land use. Source: National Stormwater Quality Database.
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Land use Phosphorus EMC (mg/L) TSS EMC (mg/L)
Low Medium High Low Medium High
Commercial 0.15 0.25 0.35 120 140 160
Industrial 0.15 0.25 0.25 130 150 170
Institutional 0.15 0.25 0.35 100 120 140
Multi-use 0.3 0.4 0.5 120 140 160
Municipal 0.2 0.3 0.4 120 140 160
Open space 0.1 0.2 0.3 70 90 110
Residential - high density 0.3 0.4 0.5 120 140 160
Residential - low density 0.4 0.5 0.6 130 150 170
Residential - medium density 0.2 0.3 0.4 100 120 140
Transportation 0.3 0.4 0.5 115 135 155

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