This afternoon's report concludes the 2013 CO-OP drought exercise. Our thanks and appreciation goes out to everyone who participated in the exercise!
SIMULATED CONDITIONS: Yesterday evening’s thunderstorms resulted in significant accumulations of precipitation in the western portion of the basin, and flow predictions indicate that flow at Little Falls will continue to rise over the next several days. The only operational change for this afternoon is the discontinuation of the request that a portion of Washington Aqueduct's withdrawal be made at Little Falls. (Great Falls and Little Falls withdrawals now per operational preference.)
THE FLOWS, DEMANDS, AND DISCHARGES REPORTED BELOW REFLECT ACTUAL CONDITIONS:
Daily Flows:
Little Falls gage flow 08/26: 2020 MGD (3120 cfs)
Little Falls gage flow 08/27: 2620 MGD (est., based on most recently available real time data) (4050 cfs)
Note: Gage flow at Little Falls is measured after water supply withdrawals.
Point of Rocks flow 08/26: 3520 MGD (5440 cfs)
Point of Rocks flow 08/27: 4520 MGD (est., based on recently available real time data) (6990 cfs)
Today's estimated demand (08/27/13) P.M.:
WSSC P.M. estimated demand: 185 MGD
FW P.M. estimated demand: 175 MGD
Aqueduct P.M. estimated demand: 155 MGD
LW estimated demand (included in total through FW): 29 MGD
Total P.M. estimated demand: 515 MGD
Tomorrow's estimated demand (08/28/13):
WSSC estimated demand: 180 MGD
FW estimated demand: 180 MGD
Aqueduct estimated demand: 150 MGD
LW estimated demand (included in total through FW): 30 MGD
Total estimated demand: 510 MGD
SIMULATED - Recommended operations for this afternoon (08/27/13):
Fairfax Water:
Maintain Occoquan production at 63 MGD to conserve reservoir storage. Potomac withdrawals per operational preference.
WSSC:
Maintain Patuxent production at 30 MGD to conserve reservoir storage. Potomac withdrawals per operational preference.
Seneca (release date, time, amount in MGD):
No releases from Little Seneca at this time.
Aqueduct:
Great Falls and Little Falls withdrawals per operational preference.
North Branch Reservoirs:
No releases from Jennings Randolph Reservoir at this time.