At our campus we use ionized water as a general cleaning solution and thus avoid the purchase of cleaning products that would be used for general cleaning. Is there any way we can count the ionized water usage (which obviously is non-toxic and a better option than a chemical solution) in with our purchases? I'm a little bit stumped as to how to reflect our lessened chemical purchase which puts us at a bit of a disadvantage because 30% of the rest of the supplies then have to be "sustainable". Thanks!