Model Results

TSS Treatment at LIDs

First, we look at how effectively the LIDs treat TSS. Figure 2.9 shows a comparison between the TSS concentration in the treated runoff from filter strip W1-FS and the upstream runoff from subcatchment W1 during a 0.1-in storm event. For context, the runoff flow rates from both areas are also included.

The TSS concentration drops from 182.3 mg/L in the upstream runoff to 54.7 mg/L after passing through the filter strip; an exact match with the 70% TSS removal efficiency set for this LID. Similar levels of performance were observed across the other filter strips for all design storm events.