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New York State Canals

Hinckley Reservoir Water Levels

Information on this page provides current data and operating parameters related to ongoing management of Hinckley Reservoir water levels.
Previous Data - 2009 Data | 2010 Data | 2011 Data | 2012 Data

Water Level Data Table
Date Hinckley Reservoir Elevation
(ft)
Hinckley Reservoir
Comparison to Elevation Trigger1
(ft)
Hinckley Reservoir Comparison to Normal Elevation2
(ft)
Hinckley Reservoir
Discharge
(cfs)3
2012 Operating Diagram Release4
(cfs)
Hinckley Reservoir Inflow
(cfs)
Hinckley Reservoir
30-Day Running Average Inflow5
(cfs)
Wilmurt Streamgage Flow
(cfs)
Mohawk Valley Water Authority Withdrawal
(cfs)
Delta Reservoir Elevation
(ft)
Delta Reservoir Discharge
(cfs)
Nine Mile Feeder Discharge
(cfs)
05/24/20131218.4-3.6-6.06056001546982.01300N/A550.531616
05/23/20131217.6-4.4-6.86046001186983.099132.4550.332016
05/22/20131217.2-4.8-7.2741740914999.093235.3550.222516
05/21/20131217.0-5.0-7.57447405171041.035732.9550.122216
05/20/20131217.2-4.8-7.37467404011156.033632.6550.119916
05/19/20131217.6-4.4-6.97998004531397.034433.8N/AN/AN/A
05/18/20131217.9-4.1-6.68028004821526.0N/A34.8N/AN/AN/A
05/17/20131218.2-3.8-6.38008005081647.045333.8550.222216
05/16/20131218.4-3.6-6.18098006631788.056731.7N/AN/AN/A
05/15/20131218.6-3.4-6.09189506821834.056232.8550.32530
05/14/20131218.8-3.2-5.89609507831870.061933.0550.32760
05/13/20131219.0-3.0-5.510109508021931.072231.0550.33080
05/12/20131219.2-2.8-5.21161107011932020.093434.6N/AN/AN/A
05/11/20131219.2-2.8-5.2108210709042124.082935.1N/AN/AN/A
05/10/20131219.4-2.6-5.0108210705102296.046932.9550.32460
05/09/20131219.8-2.2-4.4119510704642454.042432.0N/AN/AN/A
05/08/20131220.4-1.6-3.9140814004512516.043533.9550.43510
05/07/20131221.2-0.8-3.1140414005272541.049034.3550.41850
05/06/20131221.9-0.1-2.5140514005492549.056934.0550.51960
NY Power Authority Comments: As of May 6 the Hinckley reservoir low elevation trigger became ACTIVATED. Routine Communication Protocols were utilized.
05/05/20131222.60.6-1.8139914006922554.067632.9N/AN/AN/A
05/04/20131223.21.2-1.2140514007572556.080433.0N/AN/AN/A
05/03/20131223.71.7-0.7140414009462557.094233.6550.52490
05/02/20131224.12.1-0.21487140011582560.0106034.1N/AN/AN/A
05/01/20131224.32.30.21643175012792565.0117027.6550.62940
04/30/20131224.6N/A0.71647175013742556.0122032.9550.63200
04/29/20131224.8N/A1.01635175014622528.078532.3550.63390
04/28/20131225.0N/A1.41741170013002495.081632.9N/AN/AN/A
04/27/20131225.3N/A1.92122170017122466.0106032.5N/AN/AN/A
04/26/20131225.6N/A2.42562170024202424.0156032.4550.74990
04/25/20131225.8N/A3.02196170028282358.0213033.7550.74990
04/24/20131225.3N/A2.91767140015932269.0103033.5N/AN/AN/A
04/23/20131225.5N/A3.72109140016652224.0103034.1550.85420
04/22/20131225.8N/A4.83099140021752177.0133031.6550.97340
04/21/20131226.5N/A6.25007140039682115.0234032.6N/AN/AN/A
04/20/20131227.3N/A7.55268140076151992.06610N/AN/AN/AN/A
04/19/20131225.6N/A6.41478140043471753.0423032.8551.011300
04/18/20131223.5N/A4.71417140040911623.0321033.4551.211300
04/17/20131221.5N/A3.31410140047351504.0402032.8551.313900
04/16/20131218.8N/A1.51411140020611366.0175033.5551.09210
04/15/20131218.3N/A1.91270140017671325.0126034.9551.011100
04/14/20131217.9N/A2.385485026111300.0161032.8N/AN/AN/A
04/13/20131216.5N/A1.685585034651260.0N/A32.6N/AN/AN/A
04/12/20131214.2N/A0.085485043151221.0251033.9551.416500
04/11/20131211.0N/A-2.585685060711155.0400033.0N/AN/AN/A
04/10/20131205.7N/A-7.17427305243978.0400035.0N/AN/AN/A
04/09/20131200.4N/A-11.97367302319815.0175034.0550.22560
04/08/20131198.4N/A-13.37327301192749.089032.0549.52190
04/07/20131197.8N/A-13.1602600789719.051433.6N/AN/AN/A
04/06/20131197.6N/A-12.5609600689703.049737.4N/AN/AN/A
04/05/20131197.5N/A-11.7605600755690.051334.8548.62160
04/04/20131197.3N/A-10.9604600788676.0553N/AN/AN/AN/A
04/03/20131197.1N/A-10.05585501017660.067836.5548.32130
04/02/20131196.5N/A-9.75645501315637.090735.3547.92220
04/01/20131195.5N/A-9.84645501000605.074635.8546.82310
NY Power Authority Comments: The Canal Corporation authorized a return to the Operating Diagram discharge, which from now on is the "2012 Operating Diagram".
03/31/20131194.7N/A-9.74041080556586.0340N/AN/AN/AN/A
03/30/20131194.5N/A-9.04031080474575.030634.7N/AN/AN/A
03/29/20131194.4N/A-8.34031080426569.030235.6546.02190
03/28/20131194.4N/A-7.44031100458562.029734.5545.82130
03/27/20131194.4N/A-6.64031100426554.030335.0545.82070
03/26/20131194.4N/A-6.26971100154547.030834.5545.72040
NY Power Authority Comments: The Canal Corporation authorized a reduction in the Operating Diagram discharge, because of low inflows and rapidly declining reservoir level. Beginning on March 26, the reduced discharge is 400 cfs.
03/25/20131195.2N/A-5.010581100243549.031836.5545.72040
03/24/20131196.5N/A-3.510931100261550.033335.1N/AN/AN/A
03/23/20131197.7N/A-2.210911100301547.0N/A32.9N/AN/AN/A
03/22/20131198.8N/A-1.011011100301545.037533.7545.72040
03/21/20131199.8N/A0.2999910426543.0N/A35.7545.62040
03/20/20131200.6N/A1.2918910451537.043234.8545.62040
03/19/20131201.2N/A1.7910910535530.044534.0545.52040
03/18/20131201.7N/A2.4916910596522.050535.6545.52100
03/17/20131202.1N/A3.0910910811512.062634.6N/AN/AN/A
03/16/20131202.2N/A3.29159101019498.082135.1N/AN/AN/A
03/15/20131202.2N/A3.29269101432476.0107037.4N/AN/AN/A
03/14/20131201.6N/A2.85697802277440.0151035.0N/AN/AN/A
NY Power Authority Comments: The Canal Corporation authorized a return to the Operating Diagram discharge, because substantial runoff increased the Hinckley water levels.
03/13/20131199.4N/A0.74057802341379.0183033.7N/AN/AN/A
03/12/20131196.4N/A-2.2400780767316.057536.6N/AN/AN/A
03/11/20131196.4N/A-2.3398780353303.024435.5N/AN/AN/A
03/10/20131196.5N/A-2.2398780332304.021034.7N/AN/AN/A
03/09/20131196.6N/A-2.1399780286312.019934.7N/AN/AN/A
03/08/20131196.8N/A-1.8400780319323.019036.2542.62100
03/07/20131196.9N/A-1.8400800302336.019134.1542.52100
03/06/20131197.1N/A-1.4399800317356.019935.2542.62190
03/05/20131197.2N/A-1.3401800319380.020236.8542.62220
03/04/20131197.4N/A-1.4402800336416.020936.4542.62220
03/03/20131197.5N/A-1.6403800355491.021933.6N/AN/AN/A
03/02/20131197.6N/A-1.8404800410644.022335.7N/AN/AN/A
03/01/20131197.6N/A-2.0408800235855.023536.6542.72310
NY Power Authority Comments: The Canal Corporation authorized a reduction in the Operating Diagram discharge, because of the abnormally dry conditions. Beginning on March 1, the reduced discharge is 400 cfs.
02/28/20131197.9N/A-1.9917950281864.023635.2542.42310
02/27/20131198.8N/A-1.1941950236864.022236.1542.32190
02/26/20131199.7N/A-0.4943950217866.023238.0542.22190
02/25/20131200.7N/A0.3945950219868.023136.9542.32190
02/24/20131201.6N/A1.0944950218869.023834.8N/AN/AN/A
02/23/20131202.5N/A1.8950950248867.0N/A36.8N/AN/AN/A
02/22/20131203.4N/A2.6986950181865.027737.0542.42190
02/21/20131204.3N/A3.210361030232870.025335.0542.52190
02/20/20131205.2N/A3.810361030257875.026035.4542.62190
02/19/20131206.1N/A4.310301030256881.025036.6542.62190
02/18/20131207.0N/A5.010311030217893.027540.9542.62190
02/17/20131207.9N/A5.810361030300903.0283N/AN/AN/AN/A
02/16/20131208.6N/A6.210471030296910.0N/AN/AN/AN/AN/A
02/15/20131209.4N/A6.710511030385931.031037.0542.72220
02/14/20131210.1N/A7.010721060370957.033036.6542.82250
02/13/20131210.8N/A7.3106810603531000.033836.6542.82250
02/12/20131211.5N/A7.7106910604491027.035436.3542.82250
02/11/20131212.1N/A7.9106510604621031.035937.0542.82280
02/10/20131212.7N/A8.1106610603491028.034036.8N/AN/AN/A
02/09/20131213.4N/A8.4105910604121028.037035.8N/AN/AN/A
02/08/20131214.0N/A8.698110605431025.041234.3545.011900
02/07/20131214.4N/A8.67867006191017.043140.8545.711900
NY Power Authority Comments: In order to make a manual flow change during normal working hours, the Canal Corporation allowed an 80 cfs increase in the Operating Diagram release on Feb 7 and a compensating 80 cfs decrease on Feb 8.
02/06/20131214.6N/A8.57057007291005.052734.8546.312000
02/05/20131214.6N/A8.1704700892994.059137.9547.311700
02/04/20131214.4N/A7.77047001027976.084336.2547.511700
02/03/20131214.2N/A7.37697001422954.0116036.6N/AN/AN/A
02/02/20131213.4N/A6.37057002587919.0N/A35.8N/AN/AN/A
02/01/20131211.6N/A4.27067004932847.0358038.4N/AN/AN/A
01/31/20131207.4N/A-0.28068006734693.0628038.2N/AN/AN/A
01/30/20131200.7N/A-7.2805800514483.062737.7542.02490
01/29/20131201.1N/A-7.0807800293481.027934.9542.02310
01/28/20131201.7N/A-6.6808800284487.028928.6542.12310
01/27/20131202.4N/A-6.0807800273497.040428.0N/AN/AN/A
01/26/20131203.0N/A-5.4801800257507.035535.9N/AN/AN/A
01/25/20131203.7N/A-4.91129800141520.031846.2542.73640
NY Power Authority Comments: The Canal Corporation authorized a continuation of yesterday's instruction. The Jarvis release was increased from the Operating Diagram discharge of 800 cfs up to 1400 cfs from 0853 to 2158 today.
01/24/20131204.9N/A-3.81040810201538.0N/A34.8542.93640
NY Power Authority Comments: The Canal Corporation authorized additional water be released due to unusually high load on the power system and as partial make up for reduced reservoir releases that occurred during the past year. The Jarvis release was increased from the Operating Diagram discharge of 810 cfs up to 1400 cfs from 1257 to 2200 today.
01/23/20131205.8N/A-2.8816810343560.0N/A35.0543.13640
01/22/20131206.4N/A-2.2815810359584.029734.3543.43640
01/21/20131206.9N/A-2.0815810446620.033634.0N/AN/AN/A
01/20/20131207.3N/A-1.8809810622680.042634.1N/AN/AN/A
01/19/20131207.5N/A-1.8816810511716.043234.6N/AN/AN/A
01/18/20131207.8N/A-1.6791810507757.040533.9543.73680
01/17/20131208.2N/A-1.5808800926827.063733.6543.83720
01/16/20131208.1N/A-1.87968001172854.085834.6543.83720
01/15/20131207.7N/A-2.47978001655835.0119034.3543.52490
01/14/20131206.8N/A-3.67848001149803.0102035.0542.82800
01/13/20131206.4N/A-4.2800800595791.039535.1N/AN/AN/A
01/12/20131206.7N/A-4.2880800365803.028132.4N/AN/AN/A
01/11/20131207.2N/A-4.0799800333836.024934.2541.92280
01/10/20131207.7N/A-3.8886880319900.025835.4541.92280
01/09/20131208.3N/A-3.48778803261003.027435.3541.92280
01/08/20131208.9N/A-3.09038802411054.030932.9541.92280
01/07/20131209.6N/A-2.49198803971071.028434.6541.92280
01/06/20131210.1N/A-2.18958803771084.029334.7N/AN/AN/A
01/05/20131210.6N/A-1.68948803581102.030832.2N/AN/AN/A
01/04/20131211.2N/A-1.18868803741140.035834.0542.02310
01/03/20131211.7N/A-0.69359304101170.037335.5542.02310
01/02/20131212.2N/A-0.19339303271195.032833.1542.02310
01/01/20131212.8N/A0.59299304211221.033833.8N/AN/AN/A

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1 The Elevation Trigger is invoked when Hinckley Reservoir elevation falls below the 10% historical low level. The elevation trigger is 1222 feet in May, 1198 feet October 15 to December 31 and linearly interpolated from 1222 feet on May 31 and 1198 feet on October 15.

2 "Normal" Hinckley Reservoir elevations for a given date are based upon the average of 59 years of daily Hinckley Reservoir elevation data (1942-1979 and 1987-2007).

3 cfs is the abbreviation for cubic feet per second.

4 The 2012 Operating Diagram establishes the rate of release of water from Hinckley Reservoir based upon varying reservoir levels throughout the year.  Image of the 2012 Operating Diagram.

5 The Inflow Trigger is invoked when the 30-day running average Hinckley Reservoir inflow is below 300 cfs.