Drought exercise simulation day: August 26 2022.
Combined water supply storage at Jennings Randolph and Little Seneca reservoirs fell to 59% of capacity this morning. Today's target flow at the Luke USGS gage remains 325 cfs and the Little Seneca release remains at 25 MGD.
SIMULATED Daily Flows:
Little Falls gage flow 08/25: 200 MGD (300 cfs)
Little Falls gage flow 08/26: 180 MGD (est., based on most recently available real time data) (281 cfs)
Note: Gage flow at Little Falls is measured after water supply withdrawals.
Point of Rocks flow 08/25: 570 MGD (880 cfs)
Point of Rocks flow 08/26: 580 MGD (est., based on recently available real time data) (900 cfs)
Today's estimated demand (08/26/22) P.M.:
ACTUAL WSSC P.M. estimated demand: 175 MGD
ACTUAL FW P.M. estimated demand: 170 MGD
ACTUAL Aqueduct P.M. estimated demand: 145 MGD
SIMULATED LW total estimated demand: 34 MGD
SIMULATED LW WTP estimated demand: 15 MGD
Tomorrow's estimated demand (08/27/22):
ACTUAL WSSC estimated demand: 165 MGD
ACTUAL FW estimated demand: 170 MGD
ACTUAL Aqueduct estimated demand: 147 MGD
SIMULATED LW total estimated demand: 31 MGD
SIMULATED LW WTP estimated demand: 15 MGD
SIMULATED - Recommended operations for today (08/26/22):
Fairfax Water:
Maintain the withdrawal at Occoquan at 90 MGD.
WSSC:
Maintain the Patuxent withdrawal at 30 MGD.
Seneca (release date, time, amount in MGD):
Continue the 25 MGD release from Little Seneca Reservoir.
Aqueduct:
Maintain the Little Falls withdrawal at 125 MGD. Meet the rest of demands using Great Falls.
Loudoun Water:
Limit Potomac withdrawal to 15 MGD. Preserve quarry storage.
North Branch Reservoirs:
Today's Luke target is 325 cfs.