From the Richmond Department of Public Utilities:
The City of Richmond, along with the surrounding counties of Chesterfield, Hanover, Henrico and Goochland are alerting customers that voluntary water conservation measures may be implemented within the next few days.
An impending factor is the increased trigger levels that went into effect for state waterways on November 1. The James River requires higher water levels in November to coincide with the normal start of the fall fish migratory season.
A “Ready Alert” notification means that water levels have decreased to 1,800 cfs (cubic feet per second), and are being watched closely. It also means that voluntary conservation measures are probable.
Voluntary conservation measures are undertaken when the James River reaches 1,700 cfs. As of Thursday, November 13, 2014, the current 14 day average for the natural river flow level is 1,824 cfs. If voluntary conservation measures are implemented, they will be in effect through December.