My project is in Singapore and it is a norm here that all the building sewage will be connected to the public utility drains and send for treatment, reclamation & disposal.
I have been requested to provide details about how the sewage would be conveyed from the site for a LEED CI project?.

1) Is it norm to provide sewage conveyance details for a LEED CI project?

2) All the toilets are outside my LEED project bondary (though i would be counting the toilet fixtures for my WE credits) and provided by the base building. What information or documentation should suffice for the clarification?