Weather forecasts and operational recommendations are unchanged since this morning. Flow at Little Falls has dropped due to high Potomac River withdrawals this morning, related in part to work that WSSC is doing on their Patuxent plant.
Daily Flows:
Little Falls gage flow 09/19: 700 MGD (1080 cfs)
Little Falls gage flow 09/20: 610 MGD (est., based on most recently available real time data) (950 cfs)
Note: Gage flow at Little Falls is measured after water supply withdrawals.
Point of Rocks flow 09/19: 940 MGD (1450 cfs)
Point of Rocks flow 09/20: 940 MGD (est., based on recently available real time data) (1460 cfs)
Today's estimated demand (09/20/10) P.M.:
WSSC P.M. estimated demand: 195 MGD
FW P.M. estimated demand: 220 MGD
Aqueduct P.M. estimated demand: 160 MGD
Total P.M. estimated demand: 575 MGD
Tomorrow's estimated demand (09/21/10):
WSSC estimated demand: 185 MGD
FW estimated demand: 210 MGD
Aqueduct estimated demand: 155 MGD
Total estimated demand: 550 MGD
Recommended operations for today (09/20/10):
Fairfax Water:
Shift withdrawals to the Potomac as much as operationally feasible.
WSSC:
Shift withdrawals to the Potomac as much as operationally feasible.
Seneca (release date, time, amount in MGD):
No release from Little Seneca Reservoir is scheduled today.
Aqueduct:
Per operational preference.
North Branch Reservoirs:
The North Branch reservoir release request was reduced today to 40 MGD (Luke target of 235 cfs).
Note: the reference Luke target flow is 173 cfs, which was the flow being maintained by the Corp prior to the initiation of water supply releases on September 10, 2010. Requested release amounts, given in MGD, are release rates above this reference flow. The reported Luke targets include the reference flow plus the additional release amounts.