For the Case1 where the

Notwithstanding the fundamental problems with the EAc3 language as I have described in strings above (the matter is making its way up the EA TAG priority list for discussion and hopefully resolution), the second part/requirement of Case 1 specifies only energy costs, not water. While I suppose that it could be argued that if the building owner pays for water, then water should be inherently included in deference to the intent of the credit, that is not the situation in this case. So, my interpretation is that you do not have to include water to achieve the 3rd point. However, I cannot speak for the GBCI on the matter, and given the lack of absolute clarity, so a CIR may be in order if this point is critical to your project.