74 SUSQUEHANNA RIVER BASIN 01529950 CHEMUNG RIVER AT CORNING, NY
LOCATION.--Lat 42°08'47", long 77°03'28", Steuben County, Hydrologic Unit 02050105, on right bank adjacent to Corning Glass Works power plant, 0.2 mi upstream from bridge on State Highway 414 (Centerway St.) at Corning, and 1.7 mi downstream from Cohocton River. DRAINAGE AREA.--2,006 mi2. PERIOD OF RECORD.--Occasional discharge measurements water years 1941, 1968-69. October 1974 to current year. REVISED RECORDS.--WDR NY-78-1: 1976, 1977(M). WDR NY-83-3: 1982(M). GAGE.--Water-stage recorder. Datum of gage is 900.00 ft above NGVD of 1929. REMARKS.--Records fair. High flows significantly regulated by upstream reservoirs. During each year a large part of flow from 45.5 mi2 of drainage area is diverted upstream from Lake Lamoka on Mud Creek, an upstream tributary, into Keuka Lake (Oswego River basin) for power development. Telephone and satellite gage-height telemeters at station. EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, prior to construction of Tioga Reservoir in 1979, 127,000 ft3/s, Sep. 26, 1975, gage height, 32.46 ft; minimum discharge, 210 ft3/s, Aug. 1978. Maximum discharge, since construction of Tioga Reservoir in 1979, about 61,000 ft3/s, Jan. 19, 1996; minimum discharge, 95 ft3/s, Sep. 9, 10, 23, 24, 1991, gage height, 14.30 ft. EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of June 23, 1972, reached a stage of 40.71 ft, from floodmark; discharge 228,000 ft3/s, from peak flows determined at upstream and downstream stations adjusted for drainage area and channel storage. EXTREMES FOR CURRENT YEAR.--Maximum discharge, 42,200 ft3/s, Sept. 18, gage height, 24.77 ft; minimum discharge, 410 ft3/s, July 7, 12.
DISCHARGE, CUBIC FEET PER SECOND WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 2,660 2,820 3,230 4,200 e1,000 e1,500 5,720 2,260 3,520 605 4,620 3,340 2 2,190 2,610 2,890 3,870 e1,000 e3,900 14,300 2,510 3,190 570 2,820 2,070 3 1,930 2,410 2,480 4,240 e990 16,000 9,560 7,400 4,670 492 1,920 1,670 4 1,770 2,000 2,100 5,520 e1,050 14,600 7,070 4,350 3,410 470 1,750 1,420 5 2,230 1,790 2,040 7,420 e1,000 19,500 5,580 3,680 2,380 484 1,880 1,280 6 2,050 1,880 1,930 6,550 e960 20,600 4,340 3,540 2,300 462 1,510 1,100 7 1,540 1,680 1,760 4,100 e1,050 14,000 4,070 4,920 2,020 441 1,150 931 8 1,290 1,500 1,450 3,300 e1,100 9,410 3,520 4,100 1,690 482 891 1,060 9 1,070 1,410 1,660 e2,900 e1,160 6,590 3,160 8,290 1,490 609 903 31,600 10 1,000 1,280 1,790 e2,300 e1,140 4,700 2,790 10,600 1,390 465 930 19,700 11 941 1,230 15,600 e2,000 e1,200 3,990 2,460 10,400 1,420 433 1,200 15,800 12 899 1,180 15,200 e2,400 e1,200 3,430 2,360 6,610 1,160 432 1,210 13,100 13 766 1,390 8,220 e2,500 e1,100 3,020 8,070 5,680 972 512 2,210 9,180 14 793 1,490 6,280 e1,900 e1,050 2,620 21,700 5,680 919 1,100 2,070 4,120 15 1,640 1,290 4,900 e1,400 e1,020 2,570 12,400 7,740 871 2,840 1,280 2,950 16 2,410 1,310 4,440 e1,400 e1,000 2,530 6,940 6,670 828 1,520 1,070 2,090 17 1,290 1,360 4,070 e1,500 e980 2,310 4,960 4,440 827 1,250 1,100 8,010 18 1,020 1,380 4,150 e1,500 e960 2,290 4,200 3,530 1,720 3,680 851 30,200 19 933 6,940 3,760 e1,420 e940 2,270 3,810 3,170 1,780 3,590 771 10,700 20 942 21,700 3,240 e1,500 e920 2,260 3,350 2,420 1,280 2,760 748 14,000 21 901 13,400 2,890 e1,420 e950 4,450 3,030 5,730 942 1,470 7,650 13,700 22 792 7,320 2,780 e1,350 e1,000 4,600 3,840 5,840 817 1,050 6,780 13,000 23 788 5,160 4,590 e1,200 e1,080 3,400 4,620 6,110 793 953 2,640 11,700 24 761 4,460 14,000 e1,130 e1,100 3,630 4,780 7,830 683 1,280 1,860 8,130 25 764 4,310 15,300 e1,100 e1,050 6,980 3,830 6,090 626 1,060 1,670 6,100 26 742 3,560 8,210 e1,050 e1,020 8,170 4,380 4,820 583 1,040 1,460 3,350 27 4,470 3,050 6,030 e1,000 e1,040 7,160 4,100 3,860 586 14,700 1,030 2,150 28 7,920 2,910 4,800 e1,000 e1,000 6,500 3,120 4,710 576 13,600 944 1,590 29 4,540 4,610 4,350 e980 e1,050 4,930 2,730 3,560 644 10,600 1,130 1,530 30 4,990 3,890 5,190 e1,050 --- 3,980 2,500 2,580 657 4,410 5,530 1,390 31 3,410 --- 5,460 e1,000 --- 3,630 --- 2,310 --- 5,210 9,290 --- TOTAL 59,442 111,320 164,790 74,200 30,110 195,520 167,290 161,430 44,744 78,570 70,868 236,961 MEAN 1,917 3,711 5,316 2,394 1,038 6,307 5,576 5,207 1,491 2,535 2,286 7,899 MAX 7,920 21,700 15,600 7,420 1,200 20,600 21,700 10,600 4,670 14,700 9,290 31,600 MIN 742 1,180 1,450 980 920 1,500 2,360 2,260 576 432 748 931 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1975 - 2004, BY WATER YEAR (WY) MEAN 1,146 1,758 2,264 2,126 2,570 4,439 4,777 2,624 1,740 850 753 1,100 MAX 5,478 6,124 5,316 6,879 7,993 9,533 16,150 6,692 5,835 3,039 3,699 7,899 (WY) (1991) (1997) (2004) (1996) (1976) (1979) (1993) (1989) (1989) (2003) (2003) (2004) MIN 157 226 240 328 537 1,284 1,599 549 214 173 153 141 (WY) (1992) (1999) (1999) (1981) (1980) (1981) (1981) (1985) (1999) (1991) (1999) (1991) SUSQUEHANNA RIVER BASIN 75 01529950 CHEMUNG RIVER AT CORNING, NY—Continued
SUMMARY STATISTICS FOR 2003 CALENDAR YEAR FOR 2004 WATER YEAR WATER YEARS 1975 - 2004 ANNUAL TOTAL 1,252,652 1,395,245 ANNUAL MEAN 3,432 3,812 2,174 HIGHEST ANNUAL MEAN 3,812 2004 LOWEST ANNUAL MEAN 1,203 1999 HIGHEST DAILY MEAN 24,500 Mar 18 31,600 Sep 9 87,100 Sep 26, 1975 LOWEST DAILY MEAN 455 Jul 15 432 Jul 12 105 Oct 3, 1980 ANNUAL SEVEN-DAY MINIMUM 537 Jul 4 475 Jul 6 108 Oct 2, 1980 10 PERCENT EXCEEDS 8,110 8,180 5,070 50 PERCENT EXCEEDS 1,830 2,300 1,000 90 PERCENT EXCEEDS 755 897 231
e Estimated
150000 100000
50000
20000
10000
5000
2000
1000
500 DISCHARGE, IN CUBIC FEET SECOND IN CUBIC PER DISCHARGE,
200
100 Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep 2004
2004 WATER YEAR DAILY MEAN DISCHARGE (BOLD) WITH DAILY MEDIAN FOR PERIOD OF RECORD. SHADED AREAS SHOW HIGHEST AND LOWEST DAILY MEAN FOR PERIOD OF RECORD THROUGH PREVIOUS WATER YEAR.