Our project approach to this point is pretty straightforward. We are using a water quality structure with a sand filter for the entire site. Is there further documentation required for this point beyond just filling in the table SSc6.2-1 and checking the box that the BMP's treat runoff from 90% of the average annual rainfall? ? I was thinking that they might want to see what WQ system is being used, proof of its TSS % removal efficiency, some calculations, etc.