Stormwater filtration practice (media filters; includes sand filters, peat mixed with sand, and other) outflow concentrations and pollutant removals
| Source | TSS outflow concentration (mg/L) at a given Percentile | TP outflow concentration (mg/L) at a given Percentile | ||||
|---|---|---|---|---|---|---|
| 25th | 50th | 75th | 25th | 50th | 75th | |
| ASCE/EPA | 6 | 8 | 12 | 0.08 | 0.11 | 0.16 |
| CWP | 5 | 11 | 16 | 0.06 | 0.10 | 0.19 |
| Source | TSS Percent Removal at a given Percentile1 | TP Percent Removal at a given Percentile1 | ||||
| 25th | 50th | 75th | 25th | 50th | 75th | |
| ASCE/EPA | 73 | 83 | 87 | 15 | 35 | 47 |
| CWP | 80 | 86 | 92 | 41 | 59 | 65 |
| 1MnDOT values for mean TSS removal=82% and mean TP removal=46% | ||||||