DROUGHT EXERCISE - Afternoon simulated Potomac flow and demand update (Thursday 08/22/2013)

Submitted by admin1 on Thu, 08/22/2013 - 14:00

There are no significant changes in this afternoon's weather and flow forecasts, and operational recommendations remain the same as reported in this morning's email.

Daily Flows:
Little Falls gage flow 08/21: 1670 MGD (2580 cfs)
Little Falls gage flow 08/22: 1620 MGD (est., based on most recently available real time data) (2500 cfs)
Note: Gage flow at Little Falls is measured after water supply withdrawals.
Point of Rocks flow 08/21: 1740 MGD (2690 cfs)
Point of Rocks flow 08/22: 1860 MGD (est., based on recently available real time data) (2880 cfs)

Today's estimated demand (08/22/13) P.M.:
WSSC P.M. estimated demand: 190 MGD
FW P.M. estimated demand: 170 MGD
Aqueduct P.M. estimated demand: 143 MGD
LW estimated demand (included in total through FW): 27 MGD
Total P.M. estimated demand: 503 MGD

Tomorrow's estimated demand (08/23/13):
WSSC estimated demand: 185 MGD
FW estimated demand: 180 MGD
Aqueduct estimated demand: 150 MGD
LW estimated demand (included in total through FW): 28 MGD
Total estimated demand: 515 MGD

SIMULATED - Recommended operations for today (08/22/13):

Fairfax Water:
Maintain the withdrawal at Occoquan at 63 MGD to conserve storage.

WSSC:
Maintain the Patuxent withdrawal at the minimum of 30 MGD to conserve storage.

Seneca (release date, time, amount in MGD):
There is currently no release from Little Seneca Reservoir.

Aqueduct:
Meet all demands from Little Falls in order to maintain Great Falls flow-by.

North Branch Reservoirs:
Today's Luke target is 310 cfs (200 MGD).

Tags
PM Report
Enhanced Operations
Drought Exercise
Reservoir Release Made
Operational Change