mr. richie -- thank you. >> period of supply shortfall or emergencies. a supply shortfall is a very broad phrase, to meet future demands, or it could be a time of drought. for study purposes, for the supply shortfall, we are looking at the water can be used to make up the flow requirements that we are using right now, or it could be used for future water supplies for our wholesale customers, as well. those are both on the table for this. president vietor: so there is nothing that goes toward the dry your supply only? if it turns out that that is something we need every year? >> well, actually, the study of the block some overtime. everyone was interested in dry year supply, and no one was interested in multiyear supply, so you would have a plan that might operate out of 10 years only one, and that could be done, and since that time, we have had changes in our needs, and we're looking towards 2018 and beyond, and we said let's look at every year water for us. this is so that you would at least, the way the study is currently configured, you would have a p