Our project is pursuing an ID point for Pilot Credit 17 under the LEED-NCv2009 rating system. In reviewing the requirements, we had submitted an inquiry regarding "verification that there will be side stream filtration" and whether a cutsheet would suffice and if a sand filter is required as part of the side stream filtration system?

GBCI did respond to our inquiry and stated: "1. A cut sheet is a sufficient submittal to verify that side stream filtration is provided in the project.
2. No, a sand filter is not required to be part of the side stream filtration system."