Drought exercise simulation day: August 21, 2022.
Water supply releases from the North Branch reservoirs are continuing. Today's target flow at the Luke USGS gage remains at 325 cfs.
SIMULATED Daily Flows:
Little Falls gage flow 08/20: 170 MGD (270 cfs)
Little Falls gage flow 08/21: 140 MGD (est., based on most recently available real time data) (218 cfs)
Note: Gage flow at Little Falls is measured after water supply withdrawals.
Point of Rocks flow 08/20: 570 MGD (880 cfs)
Point of Rocks flow 08/21: 540 MGD (est., based on recently available real time data) (830 cfs)
Today's estimated demand (08/21/22) P.M.:
WSSC P.M. estimated demand: 170 MGD
FW P.M. estimated demand: 172 MGD
Aqueduct P.M. estimated demand: 145 MGD
SIMULATED LW WTP P.M. estimated demand: 15 MGD
Total P.M. estimated demand: 502 MGD
Tomorrow's estimated demand (08/22/22):
WSSC estimated demand: 165 MGD
FW estimated demand: 160 MGD
Aqueduct estimated demand: 142 MGD
SIMULATED LW WTP estimated demand: 15 MGD
Total estimated demand: 482 MGD
SIMULATED - Recommended operations for today (08/21/22):
Fairfax Water:
Shift additional load to Occoquan for a total withdrawal of 120 MGD (flexible). Keep the Potomac withdrawal as steady as possible.
WSSC:
Maintain Patuxent withdrawal at 30 MGD (flexible). Keep the Potomac withdrawal as steady as possible.
Seneca (release date, time, amount in MGD):
No release from Little Seneca Reservoir is scheduled today.
Aqueduct:
Maintain Little Falls withdrawal at 125 MGD. Make any necessary changes to the Great Falls gate settings in small increments.
Loudoun Water:
Withdraw 15 MGD from the Potomac. Preserve quarry storage.
North Branch Reservoirs:
Today's Luke target is 325 cfs.