In 2019, summertime usage (May-September) averaged approximately 233 MGD, and in recent years, the annual maximum day demand has been in the order of 300 MGD. The Rating Outlook is Stable.(a) How does the Federal Reserve policy affect the bond supply equation? Nassau County, DSAP school demand and potential impacts were projected for both the 5 year and buildout development program scenarios. The U.S. government issues Treasuries to finance deficit spending, which obviously impacts Treasury supply.