Wash Fountains not meeting .5 gpm baseline.

When you say "wash fountains" what exactly are you referring to? Are these the lavatories in the bathrooms for hand washing after people use the bathroom? Or are they for something else?

I had a residential LEED-NC project include a circular washfountain in one of the amenity spaces (outside of their fitness facility) and came up with a calculation method that was accepted by the reviewers. In my situation, the installed washfountain had a flow rate of 1.25gpm but was designed for 5 users to wash their hands at once. I took into consideration that 5 users, realistically, would not be using the fixture every time but 2 users at a time was a more conservative assumption. Therefore I was able to divide the flow rate by 2 and use 0.625gpm rather than 1.25gpm. Its still above the baseline, but much better. The reviewers accepted this method (with a thorough narrative explaining the situation) and approved the prerequisite/credit. Since it isn't a typical lav faucet, I'm not sure it was even necessary to include but I'd always rather be safe than sorry, especially with prerequisites. Good luck!

Keep in mind when specifying washfountains that different activation controls are available - some have individual station controls with sensors or pushbuttons for each user, with 0.5 gpm flow rates at each spray head. In that case I treat each station as a public lavatory.