There are no changes in requested SIMULATED operations this afternoon.
ACTUAL - Basin and system conditions:
Yesterday's basin-wide average precipitation (above Little Falls):
0 inches
(based on CO-OP's Low Flow Forecast System analysis of MARFC gridded quantitative precipitation estimates)
Daily Flows:
Little Falls gage flow 10/06: 3500 MGD (5410 cfs)
Point of Rocks gage flow 10/06: 2770 MGD (4280 cfs)
Note: Gage flow at Little Falls is measured after water supply withdrawals.
Little Falls gage flow 10/07: 2770 MGD (4290 cfs)
Point of Rocks gage flow 10/07: 2110 MGD (3270 cfs)
Net Potomac Production (10/06/20):
FW Corbalis raw water withdrawal (Potomac): 83 MGD
WSSC Potomac Production: 110 MGD
Aqueduct withdrawal: 138 MGD
Total Potomac demand: 332 MGD
Patuxent, Occoquan, and Net Total System Production (10/06/20):
WSSC Patuxent withdrawal: 48 MGD
FW Occoquan raw water withdrawal: 66 MGD
Total System demand: 447 MGD
Today's estimated demand (10/07/20) P.M.:
WSSC P.M. estimated demand: 162 MGD
FW P.M. estimated demand: 160 MGD
Aqueduct P.M. estimated demand: 130 MGD
Total P.M. estimated demand: 452 MGD
Tomorrow's estimated demand (10/08/20):
WSSC estimated demand: 160 MGD
FW estimated demand: 160 MGD
Aqueduct estimated demand: 125 MGD
Total estimated demand: 445 MGD
Loudoun Water Broad Run Discharge:
Yesterday's (10/06/20): 9 MGD
Today's (10/07/20): 9 MGD
Tomorrow's (10/08/20) : 9 MGD
Loudoun Water demand:
Yesterday's (10/06/20): 9 MGD
Today's (10/07/20): 9 MGD
Tomorrow's (10/08/20) : 9 MGD
SIMULATED - Recommended operations for today (10/07/20):
Fairfax Water:
"Starting as soon as possible, and continuing until tomorrow morning
Occoquan withdrawal: 85 MGD (flexible)
Potomac withdrawal: 65 MGD (firm)"
WSSC:
Maintain Patuxent production 34 MGD to conserve reservoir storage. Potomac withdrawals per operational preference
Seneca (release date, time, amount in MGD):
Initiate a 35 MGD water supply release from Seneca as soon as possible.
Aqueduct:
Meet all demands from Little Falls.
North Branch Reservoirs:
Maintain North Branch Water Supply release; Luke target = 174 cfs. The assumed Luke flow without water supply releases is 120 cfs (simulated).