Hi! Where can we find accepted values for tss removal efficiency of a meadow or other tipes of vegetation?

I am working on a project which plans to use the Downstream Defender by Hydro International to achieve 80% TSS of stormwater. The literature with the product says it treats 50% of TSS.

If I understand correclty, we can use the table in the reference guide with several BMPs to determine the removal efficiency.

I work on the project where it is impossible to design non-structural measures because soil can´t infiltrate almost any water.

hi there, here's what will probably be an easy question for you but is stumping me, as this is my first time documenting this credit.

We have site that is located about 600m from the sea, hence the stormwater will be discharged to the sea instead going to municipal infrastructure.

If we are increasing the total impervious area on the site, but treating the stormwater to reduce the TSS, do we still meet the intent of the credit?

The civil engineer on our project made the following comment : "Item 6.2, quality control: all exfiltration trenches accepting rainwater discharge are "dry" and that is considered as pretreatment

I'm working on a major remodel project next to the ocean.

Am I correct in assuming that even though our total impervious area on the site will increase, we can achieve this credit by implementing treatment strategies that capture 90% of the storm water ru