A Little Seneca water supply release of 30 MGD (total target of 66 cfs) was requested 9/18/2015 and will continue until further notice. The Jennings Randolph release was increased to reflect a Luke target flow of 350 cfs (226 MGD).
(SIMULATED) Daily Flows:
Little Falls gage flow 09/19/15: 164 MGD (254 cfs)
Little Falls gage flow 09/20/15: 162 MGD (est., based on most recently available real time data) (251 cfs)
Note: Gage flow at Little Falls is measured after water supply withdrawals.
Point of Rocks flow 09/19/15: 510 MGD (790 cfs)
Point of Rocks flow 09/20/15: 500 MGD (est., based on recently available real time data) (780 cfs)
(ACTUAL) Today's estimated demand (09/20/11) P.M.:
WSSC P.M. estimated demand: 170 MGD
FW P.M. estimated demand: 160 MGD
Aqueduct P.M. estimated demand: 155 MGD
Total P.M. estimated demand: 485 MGD
(ACTUAL) Tomorrow's estimated demand (09/21/11):
WSSC estimated demand: 170 MGD
FW estimated demand: 165 MGD
Aqueduct estimated demand: 155 MGD
Total estimated demand: 490 MGD
SIMULATED operations for today (09/20/15):
Fairfax Water (SIMULATED):
Priority 1: keep Occoquan withdrawals as close to 90 MGD as possible.
Priority 2: maintain Potomac withdrawal as steady as possible.
WSSC (SIMULATED):
Priority 1: keep Patuxent withdrawals as close to 30 MGD as possible.
Priority 2: keep Potomac withdrawals as steady as possible.
Seneca (SIMULATED release date, time, amount in MGD):
Continue the 30 MGD water supply release from Little Seneca as requested, for a target flow of 66 cfs.
Aqueduct (SIMULATED):
Little Falls: continue use of 50 and 100 MGD pumps (assuming 185 MGD withdrawal).
Great Falls: per operational preference, but keep gate settings as steady as possible.
North Branch Reservoirs (SIMULATED):
A water supply release with a Luke target of 350 cfs (226 MGD) was requested on the morning of September 20, 2015.