What is non-default daily use values of water usage? How do I estimate them. This is required to be uploaded for the LEED-online WEp1. Thank you in advance for your help

I am working on a project located on a University Campus.  The building usage/type is most closely related to a dormitory.

Is there a minimum % of  new floors, walls, ceilings, etc. for a major renovation of an existing building under NC-v4? We are trying to decide between O+M and NC for a major renovation.

What are going off of for the 20%? 20% Material Cost???

How many EV charging stations are required to be provided to achieve this credit?

Our project is a "Major Renovation" project for a historically significant buidling within a historic district.

I have a project that recieved LEED BD+C: New Construction v2 - LEED 2.2 in 2014. They recieved a credit for water reduction with low flow toilets. 

We have a five-acre site with multiple buildings. However, we are pursuing certification for only one of the buildings. Does the entire site have to meet the prerequisite?

My project is an office tenant fitout (1 floor in a high-rise building).

To whoever can help me! I am bidding on a two-story building.