July 6, 2011: 
AECOM Demand Analysis (draft) data confirms the drop in water use as a sustainable trend. See CSWP press release. 
Significance:
According to RWSA studies and a letter written in August 2010 from the DEQ, dredging the South Fork Rivanna River (SFRR) would provide drought protection for 15.5 mgd of water (called safe yield.) 

According to this NEW Demand Analysis, the Charlottesville-Albemarle Urban Area will not need 15.5 mgd UNTIL 2050. 

Therefore, dredging the SFRR will provide enough drought protection until 2050.