This afternoon we will be requesting concurrence from the general
managers for a release from Jennings Randolph beginning tomorrow
morning. The 50 MGD test release from Little Seneca Reservoir began at
8:00 AM today (September 9) and will continue through 8:00 AM tomorrow
(September 10). The release was observed by Karin Bencala of ICPRB
staff at a location approximately 1 mile downstream of the reservoir.
Flows were observed to be increasing by 9:15 AM. Black Hill Regional
Staff was setting out signs in the park notifying patrons that the
water levels in the creek might be higher than in recent days. The
steep drop in flow seen at the Little Falls gage is at least partially
due to initiation of pumping at Little Falls and we expect flow to
recover to some extent later today.
Daily Flows:
Little Falls gage flow 09/08: 370 MGD (570 cfs)
Little Falls gage flow 09/09: 210 MGD (est., based on most
recently available real time data) (318 cfs)
Note: Gage flow at Little Falls is measured after water
supply withdrawals.
Point of Rocks flow 09/08: 650 MGD (1010 cfs)
Point of Rocks flow 09/09: 620 MGD (est., based on recently
available real time data) (960 cfs)
Today's estimated demand (09/09/10) P.M.:
WSSC P.M. estimated demand: 200 MGD
FW P.M. estimated demand: 210 MGD
Aqueduct P.M. estimated demand: 175 MGD
Total P.M. estimated demand: 585 MGD
Tomorrow's estimated demand (09/10/10):
WSSC estimated demand: 195 MGD
FW estimated demand: 205 MGD
Aqueduct estimated demand: 165 MGD
Total estimated demand: 565 MGD
Recommended operations for today (09/09/10):
Fairfax Water:
Keep Potomac withdrawals as steady as possible.
Occoquan withdrawals per operational preference.
WSSC:
Keep Potomac withdrawals as steady as possible.
Patuxent withdrawals per operational preference.
Seneca (release date, time, amount in MGD):
A 50 MGD test release began at 8:00 AM and will continue through 8:00
AM tomorrow morning (September 10).
Aqueduct:
Little Falls withdrawal target: 63 MGD
Great Falls withdrawal target: per operational preference.
Information on the release provided by the Baltimore COE appears in
the table below:
Date: JR water quality: JR water supply:
Savage: Total:
No water supply releases have been made. No water supply releases are
planned for today.