Hinckley Reservoir Water Levels
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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
| Date | Hinckley Reservoir Elevation (ft) |
Hinckley Reservoir Comparison to Elevation Trigger1 (ft) |
Hinckley Reservoir Comparison to Normal Elevation2 (ft) |
Hinckley Reservoir Discharge (cfs)3 |
1920 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 05/15/2012 | 1225.5 | 3.5 | 0.9 | 1055 | 950 | 1589 | 1368.0 | 1130 | N/A | 550.5 | 324 | 0 |
| 05/14/2012 | 1225.1 | 3.1 | 0.5 | 1049 | 950 | 830 | 1330.0 | 634 | 30.8 | 550.7 | 331 | 0 |
| 05/13/2012 | 1225.3 | 3.3 | 0.8 | 1280 | 950 | 1061 | 1320.0 | 742 | 31.3 | N/A | N/A | N/A |
| 05/12/2012 | 1225.5 | 3.5 | 1.1 | 1646 | 950 | 1173 | 1298.0 | N/A | 31.6 | N/A | N/A | N/A |
| 05/11/2012 | 1225.8 | 3.8 | 1.4 | 2158 | 950 | 1936 | 1281.0 | 1310 | 31.7 | 550.9 | 689 | 0 |
| 05/10/2012 | 1226.0 | 4.0 | 1.7 | 2409 | 1070 | 2695 | 1231.0 | 1960 | 31.4 | 551.0 | 910 | 0 |
| 05/09/2012 | 1225.8 | 3.8 | 1.6 | 1283 | 1070 | 4783 | 1159.0 | N/A | 32.0 | 551.0 | 2150 | 0 |
| 05/08/2012 | 1223.3 | 1.3 | -1.0 | 1083 | 1070 | 2316 | 1016.0 | 2010 | 32.0 | 550.2 | 1320 | 0 |
| 05/07/2012 | 1222.3 | 0.3 | -2.0 | 1078 | 1070 | 872 | 948.0 | N/A | 30.1 | 550.6 | 320 | 0 |
| 05/06/2012 | 1222.5 | 0.5 | -1.9 | 1069 | 1070 | 1101 | 945.0 | 744 | 31.9 | N/A | N/A | N/A |
| 05/05/2012 | 1222.5 | 0.5 | -1.9 | 1077 | 1070 | 1109 | 933.0 | N/A | 32.8 | N/A | N/A | N/A |
| 05/04/2012 | 1222.5 | 0.5 | -1.9 | 1078 | 1070 | 1586 | 915.0 | 1040 | 33.3 | 550.8 | 588 | 0 |
| 05/03/2012 | 1222.2 | 0.2 | -2.2 | 1107 | 1100 | 1139 | 883.0 | 850 | 30.8 | 550.7 | 398 | 0 |
| 05/02/2012 | 1222.2 | 0.2 | -2.1 | 1106 | 1100 | 1138 | 869.0 | 745 | 31.7 | 550.6 | 368 | 0 |
| 05/01/2012 | 1222.2 | 0.2 | -1.9 | 1104 | 1100 | 898 | 857.0 | 688 | 32.6 | 550.6 | 305 | 0 |
| NY Power Authority Comments: The Canal Corporation authorized the return to normal Operating Diagram release today. The Jarvis release has been the same as the Operating Diagram release since 8:30am on April 23. | ||||||||||||
| 04/30/2012 | 1222.3 | N/A | -1.6 | 1103 | 1100 | 891 | 853.0 | 628 | 31.2 | 550.6 | 294 | 0 |
| 04/29/2012 | 1222.5 | N/A | -1.3 | 1102 | 1100 | 890 | 850.0 | 762 | 31.3 | N/A | N/A | N/A |
| 04/28/2012 | 1222.7 | N/A | -0.9 | 1104 | 1100 | 1370 | 851.0 | N/A | 31.5 | N/A | N/A | N/A |
| 04/27/2012 | 1222.5 | N/A | -0.9 | 1102 | 1100 | 1368 | 835.0 | 1140 | 30.3 | 550.8 | 484 | 0 |
| 04/26/2012 | 1222.3 | N/A | -0.9 | 1101 | 1100 | 1603 | 828.0 | 1250 | 31.9 | 550.7 | 464 | 0 |
| 04/25/2012 | 1222.0 | N/A | -0.8 | 1103 | 1100 | 1837 | 810.0 | 1560 | 31.2 | 550.6 | 394 | 0 |
| 04/24/2012 | 1221.4 | N/A | -1.0 | 1103 | 1100 | 2522 | 793.0 | 2010 | 31.4 | 550.4 | 196 | 0 |
| 04/23/2012 | 1220.3 | N/A | -1.5 | 1001 | 1100 | 2085 | 761.0 | 1660 | 30.5 | 549.7 | 276 | 0 |
| 04/22/2012 | 1219.5 | N/A | -1.5 | 609 | 1100 | 747 | 715.0 | 484 | 30.6 | N/A | N/A | N/A |
| 04/21/2012 | 1219.4 | N/A | -0.9 | 438 | 1100 | 465 | 781.0 | N/A | 32.2 | N/A | N/A | N/A |
| 04/20/2012 | 1219.4 | N/A | -0.4 | 498 | 1100 | 476 | 884.0 | 367 | 34.0 | 549.4 | 193 | 0 |
| 04/19/2012 | 1219.4 | N/A | 0.2 | 617 | 1100 | 499 | 1016.0 | 409 | N/A | 549.5 | 193 | 0 |
| 04/18/2012 | 1219.4 | N/A | 0.6 | 613 | 1100 | 603 | 1210.0 | 471 | 32.7 | 549.5 | 193 | 0 |
| 04/17/2012 | 1219.5 | N/A | 1.3 | 608 | 1100 | 746 | 1351.0 | 532 | 33.2 | 549.5 | 196 | 0 |
| 04/16/2012 | 1219.4 | N/A | 2.1 | 490 | 1100 | 714 | 1477.0 | 521 | 30.3 | 549.5 | 204 | 0 |
| 04/15/2012 | 1219.2 | N/A | 2.8 | 498 | 1100 | 451 | 1632.0 | 386 | 30.9 | N/A | N/A | N/A |
| 04/14/2012 | 1219.3 | N/A | 3.7 | 551 | 1100 | 529 | 1746.0 | N/A | 32.0 | N/A | N/A | N/A |
| 04/13/2012 | 1219.3 | N/A | 4.4 | 930 | 1100 | 401 | 1829.0 | 425 | 30.2 | 549.6 | 201 | 0 |
| NY Power Authority Comments: The Jarvis release was reduced from the Operating Diagram discharge of 1100 cfs down to 550 cfs at 4:30pm today, because of the declining water levels due to the unusually dry spring. Jarvis releases will attempt to match Hinckley reservoir inflows (up to the Operating Diagram release which is 1100 cfs), in order to maintain the current water level in Hinckley reservoir. | ||||||||||||
| 04/12/2012 | 1219.8 | N/A | 5.6 | 1105 | 1100 | 671 | 1932.0 | 449 | 30.5 | 549.7 | 201 | 0 |
| 04/11/2012 | 1220.2 | N/A | 6.6 | 1106 | 1100 | 430 | 1971.0 | 425 | 31.2 | 549.7 | 201 | 0 |
| 04/10/2012 | 1220.7 | N/A | 7.9 | 1109 | 1100 | 553 | 2007.0 | 373 | 30.2 | 549.8 | 204 | 0 |
| 04/09/2012 | 1221.2 | N/A | 8.9 | 1104 | 1100 | 479 | 2051.0 | 327 | 30.8 | 549.8 | 204 | 0 |
| 04/08/2012 | 1221.7 | N/A | 10.0 | 1102 | 1100 | 275 | 2124.0 | 333 | 31.6 | N/A | N/A | N/A |
| 04/07/2012 | 1222.3 | N/A | 11.4 | 1104 | 1100 | 779 | 2205.0 | N/A | 31.4 | N/A | N/A | N/A |
| 04/06/2012 | 1222.6 | N/A | 12.5 | 1105 | 1100 | 752 | 2199.0 | 383 | 31.4 | 550.0 | 207 | 0 |
| 04/05/2012 | 1222.9 | N/A | 13.7 | 1109 | 1100 | 555 | 2184.0 | 412 | 34.0 | 550.1 | 213 | 0 |
| 04/04/2012 | 1223.3 | N/A | 15.1 | 1105 | 1100 | 627 | 2177.0 | 421 | 32.9 | 550.2 | 222 | 0 |
| 04/03/2012 | 1223.7 | N/A | 16.6 | 1107 | 1100 | 719 | 2168.0 | 453 | 30.8 | 550.2 | 246 | 0 |
| 04/02/2012 | 1224.0 | N/A | 17.8 | 1109 | 1100 | 800 | 2164.0 | 507 | 30.7 | 550.3 | 283 | 0 |
| 04/01/2012 | 1224.3 | N/A | 19.0 | 1107 | 1100 | 769 | 2142.0 | 525 | 31.4 | N/A | N/A | N/A |
| 03/31/2012 | 1224.6 | N/A | 20.2 | 1106 | 1100 | 804 | 2123.0 | N/A | 33.2 | N/A | N/A | N/A |
| 03/30/2012 | 1224.8 | N/A | 21.3 | 1105 | 1100 | 924 | 2106.0 | 646 | 33.6 | 550.4 | 219 | 0 |
| 03/29/2012 | 1224.9 | N/A | 22.2 | 1134 | 1100 | 870 | 2095.0 | 734 | 32.1 | 550.4 | 234 | 0 |
| 03/28/2012 | 1225.2 | N/A | 23.4 | 1187 | 1100 | 1155 | 2071.0 | 746 | 30.4 | N/A | N/A | N/A |
| 03/27/2012 | 1225.2 | N/A | 24.2 | 1328 | 1100 | 1076 | 2042.0 | 840 | 29.8 | 550.5 | 231 | 0 |
| 03/26/2012 | 1225.4 | N/A | 24.8 | 1579 | 1100 | 1327 | 2015.0 | 1090 | 31.5 | 550.5 | 301 | 0 |
| 03/25/2012 | 1225.6 | N/A | 25.4 | 1882 | 1100 | 1554 | 1987.0 | 1330 | 32.8 | N/A | N/A | N/A |
| 03/23/2012 | 1226.0 | N/A | 26.2 | 3059 | 1100 | 2665 | 1891.0 | 2240 | 33.1 | 550.0 | 381 | 0 |
| 03/22/2012 | 1226.4 | N/A | 26.6 | 3719 | 1100 | 3435 | 1818.0 | 2890 | N/A | N/A | N/A | N/A |
| 03/21/2012 | 1226.6 | N/A | 27.0 | 3357 | 1100 | 4327 | 1715.0 | 3740 | 33.6 | 550.7 | 529 | 0 |
| 03/20/2012 | 1225.9 | N/A | 26.5 | 1234 | 1100 | 6115 | 1576.0 | 5280 | 35.1 | 550.8 | 542 | 0 |
| 03/19/2012 | 1222.3 | N/A | 22.8 | 1108 | 1100 | 4690 | 1386.0 | 4650 | 32.7 | 550.6 | 416 | 0 |
| 03/18/2012 | 1219.5 | N/A | 20.2 | 1112 | 1100 | 4404 | 1242.0 | 3620 | 30.9 | N/A | N/A | N/A |
| 03/17/2012 | 1216.7 | N/A | 17.6 | 1104 | 1100 | 5210 | 1111.0 | N/A | 33.1 | N/A | N/A | N/A |
| 03/16/2012 | 1213.1 | N/A | 14.0 | 1108 | 1100 | 3762 | 946.0 | 3820 | 35.3 | 549.0 | 222 | 0 |
| 03/15/2012 | 1210.6 | N/A | 11.6 | 904 | 900 | 2927 | 831.0 | N/A | 34.6 | 548.5 | 219 | 0 |
| 03/14/2012 | 1208.6 | N/A | 9.8 | 905 | 900 | 3374 | 746.0 | N/A | 34.7 | 547.9 | 225 | 0 |
| 03/13/2012 | 1206.1 | N/A | 7.4 | 905 | 900 | 1829 | 648.0 | 1600 | 33.8 | 546.8 | 225 | 0 |
| 03/12/2012 | 1205.1 | N/A | 6.5 | 907 | 900 | 1465 | 600.0 | N/A | 33.6 | 546.3 | 219 | 0 |
| 03/11/2012 | 1204.5 | N/A | 5.8 | 906 | 900 | 1814 | 568.0 | 1170 | 33.7 | N/A | N/A | N/A |
| 03/10/2012 | 1203.5 | N/A | 4.8 | 911 | 900 | 2605 | 528.0 | N/A | 33.7 | N/A | N/A | N/A |
| 03/09/2012 | 1201.5 | N/A | 2.8 | 915 | 900 | 2625 | 452.0 | N/A | 33.8 | 545.2 | 234 | 0 |
| 03/08/2012 | 1199.4 | N/A | 0.8 | 998 | 1000 | 596 | 379.0 | 396 | 33.4 | 544.0 | 216 | 0 |
| 03/07/2012 | 1199.9 | N/A | 1.2 | 1003 | 1000 | 338 | 382.0 | 265 | 34.3 | 543.8 | 204 | 0 |
| 03/06/2012 | 1200.8 | N/A | 2.3 | 1003 | 1000 | 346 | 397.0 | 243 | 34.1 | 543.7 | 207 | 0 |
| 03/05/2012 | 1201.6 | N/A | 3.2 | 999 | 1000 | 368 | 410.0 | 269 | 34.2 | 543.7 | 213 | 0 |
| 03/04/2012 | 1202.4 | N/A | 3.6 | 1012 | 1000 | 604 | 436.0 | 317 | 34.2 | N/A | N/A | N/A |
| 03/03/2012 | 1203.0 | N/A | 3.8 | 1001 | 1000 | 145 | 458.0 | N/A | 34.0 | N/A | N/A | N/A |
| 03/02/2012 | 1204.0 | N/A | 4.6 | 1009 | 1000 | 227 | 509.0 | 242 | 33.8 | 543.2 | 213 | 0 |
| 03/01/2012 | 1204.9 | N/A | 5.3 | 1098 | 1100 | 316 | 540.0 | 238 | 33.8 | 543.2 | 216 | 0 |
| 02/29/2012 | 1205.8 | N/A | 6.1 | 1108 | 1100 | 607 | 568.0 | 234 | 33.8 | 543.1 | 222 | 0 |
| 02/28/2012 | 1206.3 | N/A | 6.5 | 1103 | 1100 | 158 | 602.0 | 252 | 34.4 | 543.1 | 222 | 0 |
| 02/27/2012 | 1207.4 | N/A | 7.5 | 1100 | 1100 | 316 | 682.0 | 274 | 34.2 | 543.1 | 222 | 0 |
| 02/26/2012 | 1208.2 | N/A | 8.1 | 1098 | 1100 | 297 | 808.0 | 265 | 34.3 | N/A | N/A | N/A |
| 02/25/2012 | 1209.0 | N/A | 8.6 | 1104 | 1100 | 519 | 860.0 | N/A | 34.2 | N/A | N/A | N/A |
| 02/24/2012 | 1209.7 | N/A | 9.1 | 1107 | 1100 | 422 | 867.0 | 280 | 34.3 | 542.9 | 222 | 0 |
| 02/23/2012 | 1210.4 | N/A | 9.7 | 1106 | 1100 | 243 | 879.0 | 281 | 34.2 | 542.8 | 225 | 0 |
| 02/22/2012 | 1211.2 | N/A | 10.4 | 1115 | 1100 | 478 | 891.0 | 263 | 34.2 | 542.9 | 216 | 0 |
| 02/21/2012 | 1211.8 | N/A | 10.8 | 1106 | 1100 | 331 | 889.0 | 255 | 34.6 | N/A | N/A | N/A |
| 02/20/2012 | 1212.6 | N/A | 11.1 | 1110 | 1100 | 169 | 892.0 | 257 | 34.4 | N/A | N/A | N/A |
| 02/19/2012 | 1213.5 | N/A | 11.7 | 1101 | 1100 | 397 | 904.0 | 271 | 34.4 | N/A | N/A | N/A |
| 02/18/2012 | 1214.2 | N/A | 12.2 | 1102 | 1100 | 389 | 912.0 | N/A | 34.7 | N/A | N/A | N/A |
| 02/17/2012 | 1214.8 | N/A | 12.7 | 1111 | 1100 | 467 | 922.0 | 292 | 34.5 | N/A | N/A | N/A |
| 02/16/2012 | 1215.4 | N/A | 13.0 | 1112 | 1100 | 275 | 930.0 | 289 | 34.6 | N/A | N/A | N/A |
| 02/15/2012 | 1216.0 | N/A | 13.3 | 1112 | 1100 | 311 | 940.0 | 312 | 34.5 | 543.0 | 237 | 0 |
| 02/14/2012 | 1216.7 | N/A | 13.6 | 1120 | 1100 | 378 | 943.0 | 311 | 34.6 | 543.0 | 237 | 0 |
| 02/13/2012 | 1217.4 | N/A | 13.9 | 1097 | 1100 | 430 | 947.0 | 290 | 35.7 | 543.0 | 237 | 0 |
| 02/12/2012 | 1218.0 | N/A | 14.2 | 1121 | 1100 | 386 | 954.0 | 276 | 35.2 | N/A | N/A | N/A |
| 02/11/2012 | 1218.6 | N/A | 14.4 | 1133 | 1100 | 510 | 967.0 | N/A | 34.4 | N/A | N/A | N/A |
| 02/10/2012 | 1219.1 | N/A | 14.5 | 1191 | 1100 | 612 | 971.0 | 376 | 34.5 | 543.6 | 588 | 0 |
| 02/09/2012 | 1219.6 | N/A | 14.6 | 1027 | 1100 | 328 | 970.0 | 427 | 34.0 | 544.0 | 588 | 0 |
| 02/08/2012 | 1220.2 | N/A | 14.8 | 1113 | 1100 | 431 | 979.0 | N/A | 34.5 | 544.2 | 583 | 0 |
| 02/07/2012 | 1220.7 | N/A | 14.9 | 1096 | 1100 | 662 | 984.0 | N/A | 33.9 | 544.5 | 565 | 0 |
| 02/06/2012 | 1221.1 | N/A | 15.0 | 1095 | 1100 | 795 | 984.0 | N/A | 34.3 | N/A | N/A | N/A |
| 02/05/2012 | 1221.3 | N/A | 14.8 | 1098 | 1100 | 746 | 983.0 | N/A | 34.3 | N/A | N/A | N/A |
| 02/04/2012 | 1221.6 | N/A | 14.9 | 1104 | 1100 | 1153 | 982.0 | N/A | 33.9 | N/A | N/A | N/A |
| 02/03/2012 | 1221.6 | N/A | 14.7 | 1107 | 1100 | 1256 | 970.0 | 990 | 34.0 | 544.9 | 547 | 0 |
| 02/02/2012 | 1221.5 | N/A | 14.4 | 1040 | 1030 | 1663 | 951.0 | 1350 | 34.4 | N/A | N/A | N/A |
| 02/01/2012 | 1221.0 | N/A | 13.6 | 1034 | 1030 | 1172 | 932.0 | N/A | 33.8 | 544.1 | 556 | 0 |
| 01/31/2012 | 1221.0 | N/A | 13.4 | 1037 | 1030 | 1156 | 939.0 | 881 | 34.0 | 544.2 | 538 | 0 |
| 01/30/2012 | 1220.9 | N/A | 13.0 | 1047 | 1030 | 1638 | 935.0 | 1210 | 33.7 | 544.2 | 542 | 0 |
| 01/29/2012 | 1220.4 | N/A | 12.3 | 1057 | 1030 | 2549 | 913.0 | 1930 | 33.8 | N/A | N/A | N/A |
| 01/28/2012 | 1219.2 | N/A | 11.0 | 1043 | 1030 | 4101 | 862.0 | N/A | 34.5 | N/A | N/A | N/A |
| 01/27/2012 | 1216.7 | N/A | 8.3 | 1037 | 1030 | 1843 | 764.0 | 1770 | 34.6 | 541.3 | 630 | 0 |
| 01/26/2012 | 1216.0 | N/A | 7.6 | 1084 | 1080 | 722 | 749.0 | 523 | 34.7 | N/A | N/A | N/A |
| 01/25/2012 | 1216.4 | N/A | 7.8 | 1085 | 1080 | 801 | 754.0 | 615 | 34.4 | 541.3 | 538 | 0 |
| 01/24/2012 | 1216.6 | N/A | 7.9 | 1081 | 1080 | 589 | 759.0 | 533 | 35.0 | 541.0 | 547 | 0 |
| 01/23/2012 | 1217.1 | N/A | 8.5 | 1086 | 1080 | 438 | 769.0 | 355 | 35.1 | 541.0 | 529 | 0 |
| 01/22/2012 | 1217.6 | N/A | 9.0 | 1079 | 1080 | 400 | 798.0 | N/A | 35.3 | N/A | N/A | N/A |
| 01/21/2012 | 1218.2 | N/A | 9.3 | 1092 | 1080 | 524 | 841.0 | N/A | 35.2 | N/A | N/A | N/A |
| 01/20/2012 | 1218.7 | N/A | 9.6 | 1087 | 1080 | 645 | 875.0 | 456 | 34.9 | 541.8 | 533 | 0 |
| 01/19/2012 | 1219.1 | N/A | 9.8 | 1105 | 1100 | 696 | 884.0 | N/A | 53.2 | 541.8 | 538 | 0 |
| 01/18/2012 | 1219.5 | N/A | 10.1 | 1104 | 1100 | 716 | 891.0 | 521 | 33.6 | 541.8 | 547 | 0 |
| 01/17/2012 | 1219.8 | N/A | 10.1 | 1107 | 1100 | 557 | 897.0 | 362 | 33.6 | 541.8 | 533 | 0 |
| 01/16/2012 | 1220.2 | N/A | 10.4 | 1103 | 1100 | 400 | 915.0 | N/A | 33.6 | N/A | N/A | N/A |
| 01/15/2012 | 1220.8 | N/A | 10.7 | 1101 | 1100 | 491 | 957.0 | N/A | 32.9 | N/A | N/A | N/A |
| 01/14/2012 | 1221.3 | N/A | 10.9 | 1106 | 1100 | 653 | 1009.0 | N/A | 33.0 | N/A | N/A | N/A |
| 01/13/2012 | 1221.7 | N/A | 11.0 | 1103 | 1100 | 774 | 1017.0 | 409 | 32.5 | N/A | N/A | N/A |
| 01/12/2012 | 1222.0 | N/A | 11.1 | 1096 | 1100 | 638 | 1014.0 | 350 | 33.1 | 540.6 | 222 | 0 |
| 01/11/2012 | 1222.3 | N/A | 11.1 | 1102 | 1100 | 577 | 1011.0 | 362 | 33.8 | 540.5 | 204 | 0 |
| 01/10/2012 | 1222.8 | N/A | 11.3 | 1105 | 1100 | 588 | 1011.0 | 378 | 34.4 | 540.4 | 210 | 0 |
| 01/09/2012 | 1223.2 | N/A | 11.5 | 1103 | 1100 | 582 | 1018.0 | 382 | 34.3 | 540.4 | 216 | 0 |
| 01/08/2012 | 1223.6 | N/A | 11.7 | 1105 | 1100 | 659 | 1030.0 | 443 | 33.9 | N/A | N/A | N/A |
| 01/07/2012 | 1223.9 | N/A | 11.9 | 1102 | 1100 | 771 | 1044.0 | N/A | 33.8 | N/A | N/A | N/A |
| 01/06/2012 | 1224.2 | N/A | 12.0 | 1105 | 1080 | 733 | 1061.0 | 531 | 33.5 | 540.7 | 533 | 0 |
| 01/05/2012 | 1224.5 | N/A | 12.2 | 1082 | 1080 | 788 | 1078.0 | 554 | 21.6 | N/A | N/A | N/A |
| 01/04/2012 | 1224.7 | N/A | 12.4 | 1083 | 1080 | 694 | 1093.0 | N/A | 30.1 | 541.0 | 529 | 0 |
| 01/03/2012 | 1225.0 | N/A | 12.7 | 1114 | 1080 | 1071 | 1100.0 | N/A | 34.3 | N/A | N/A | N/A |
| 01/02/2012 | 1225.1 | N/A | 12.8 | 1096 | 1080 | 1385 | 1098.0 | 1030 | 33.3 | N/A | N/A | N/A |
| 01/01/2012 | 1224.9 | N/A | 12.6 | 1086 | 1080 | 1030 | 1096.0 | 717 | 33.2 | N/A | N/A | N/A |
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 1920 Operating Diagram establishes the rate of release of water from Hinckley Reservoir based upon varying reservoir levels throughout the year. Image of the 1920 Operating Diagram.
5 The Inflow Trigger is invoked when the 30-day running average Hinckley Reservoir inflow is below 300 cfs.