Office of the Delaware River Master
Thermal Release Request
NYSDEC is requesting a release from the 2017 FFMP Thermal Mitigation Bank due to the forecast of sunny and unusually warm conditions. The daily high water temperature at Lordville, NY is projected to approach or exceed 75 degrees with the current conservation releases from Cannonsville and Pepacton Reservoirs. The East Branch and Neversink are also expected to approach or exceed 75 degrees at the current releases.
The estimated quantity to be debited from the bank from this pulse is 75 cfs-days.
There are 2140 cfs-days remaining in the bank before the requested pulse and there will be about 2065 cfs-days remaining after the requested pulse.
The use of the bank for the increases at Pepacton and Neversink is estimated to use an additional 150 cfs-days for the Tue-Fri period.
Neversink Reservoir Requested Ramping Schedule
June 20
| Time | Beginning Flow (cfs) |
Ending Flow (cfs) |
Loss/Gain (cfs) |
|---|---|---|---|
| 135 | +20 | ||
| The increased releases from Pepacton and Neversink that were requested on Tuesday should be continued. | |||
Pepacton Reservoir Requested Ramping Schedule
June 20
| Time | Beginning Flow (cfs) |
Ending Flow (cfs) |
Loss/Gain (cfs) |
|---|---|---|---|
| 180 | +30 | ||
Cannonsville Reservoir Requested Ramping Schedule
June 20
| Time | Beginning Flow (cfs) |
Ending Flow (cfs) |
Loss/Gain (cfs) |
|---|---|---|---|
| 10:00PM | 500 | 600 | +100 |
| 11:00PM | 600 | 700 | +100 |
June 21
| Time | Beginning Flow (cfs) |
Ending Flow (cfs) |
Loss/Gain (cfs) |
|---|---|---|---|
| 7:00AM | 700 | 600 | -100 |
| 8:00AM | 600 | 500 | -100 |
| NYSDEC requests an increased release from Cannonsville Reservoir in the form of a 8 hour +200 cfs pulse above the current Table 4G Level L2 release of 500 cfs. | |||
Requested By:
Brenan Tarrier
Professional Engineer 1, Division of Water
New York State Department of Environmental Conservation