In this community college office/classroom building, 40% of the flow fixtures are found in classrooms, science labs, or teacher lounges. To this point, I've never come across anyone mentioning these type of fixtures as they pertain to LEED. Could they really be considered outside the scope of the credit?

To me, considering a break room sink as a non-residential kitchen sink makes sense. I could imagine each full time staff member using the sink in the lounge once a day for 15 seconds. To be honest, I'm having a hard time thinking of a better example of a "non-residential kitchen sink" than ones found in break rooms, because the commericial kitchen sinks I'm used to dealing with are giant pot sinks used for dishwashing. Therefore, I think I'm safe to include them in my water usage calculation.

Classroom sinks, however, are a different animal. None of the prescribed usage patterns seem to fit here. Should I exclude them? Should I create a custom usage pattern and explain myself with a narrative?

Has anyone gone through the LEED process and dealt with this situation before?