DROUGHT EXERCISE - Afternoon simulated Potomac flow and demand update (Wednesday 08/21/2013)

Submitted by admin1 on Wed, 08/21/2013 - 14:00

The weather and flow forecasts and operational recommendations remain the same as reported in this morning's email.

Daily Flows:
Little Falls gage flow 08/20: 1820 MGD (2820 cfs)
Little Falls gage flow 08/21: 1680 MGD (est., based on most recently available real time data) (2600 cfs)
Note: Gage flow at Little Falls is measured after water supply withdrawals.
Point of Rocks flow 08/20: 2080 MGD (3220 cfs)
Point of Rocks flow 08/21: 2040 MGD (est., based on recently available real time data) (3160 cfs)

Today's estimated demand (08/21/13) P.M.:
WSSC P.M. estimated demand: 185 MGD
FW P.M. estimated demand: 180 MGD
Aqueduct P.M. estimated demand: 153 MGD
LW estimated demand (included in total through FW): 28 MGD
Total P.M. estimated demand: 518 MGD

Tomorrow's estimated demand (08/22/13):
WSSC estimated demand: 185 MGD
FW estimated demand: 190 MGD
Aqueduct estimated demand: 150 MGD
LW estimated demand (included in total through FW): 29 MGD
Total estimated demand: 525 MGD

SIMULATED - Recommended operations for today (08/21/13):
Fairfax Water:
Maintain the withdrawal at Occoquan at 63 MGD to conserve storage.
Potomac withdrawals per operational preference

WSSC:
Maintain the Patuxent withdrawal at the minimum of 30 MGD to conserve storage.
Potomac withdrawals per operational preference

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 230 cfs.

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