Water Data Report 1997
03097550 MAHONING RIVER AT OHIO EDISON POWER PLANT AT NILES, OHIO
LOCATION.--Lat 41010'21", long 80045'26", Trumbull County, Hydrologic Unit 05030103, on right bank 20 ft downstream
from Conrail Spur Line, 100 ft downstream from Meander Creek, 0.2 mi upstream from Belmont Road, 0.4 mi downstream
from Mosquito Creek in Niles.
DRAINAGE AREA.--854 mi2.
PERIOD OF RECORD.--October 1987 to current year.
GAGE.--Water-stage recorder. Datum of gage is 843.08 ft above sea level.
REMARKS.--Records fair. Water diverted upstream from station for municipal supply for cities of Niles, Warren, and
Youngstown. Some sewage returned to river upstream from station. Water also diverted upstream and downstream from
station for industrial use, some of which is returned to river upstream from station. Flow regulated by Berlin
Lake, 37 mi upstream, beginning in 1942, by Milton Reservoir, 29 mi upstream, by Michael J. Kirwan Reservoir, 32
mi upstream on West Branch, beginning in 1966 by Mosquito Creek Lake, 11 mi upstream, beginning in 1943, by Meander
Creek Reservoir. U.S. Army Corp of Engineers satellite telemeter at station.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
1 1090 1700 2860 1820 1310 2360 614 520 3010 499 492 415
2 1160 1360 3730 1800 1290 2070 506 373 5670 553 492 405
3 1160 1140 2900 1300 1300 2650 431 580 5560 494 493 403
4 956 848 2270 1040 1530 1690 388 1030 3180 493 493 396
5 772 814 2080 1160 2980 1720 385 887 2540 509 493 394
6 727 804 2040 1380 3080 4180 393 700 2670 509 497 393
7 719 767 2020 1310 2360 3350 381 734 2710 513 495 393
8 671 1810 1900 1150 2090 2250 333 630 2700 507 492 395
9 571 e2800 1790 981 1940 1880 310 630 2660 552 490 404
10 476 e2700 1690 868 1790 3530 294 652 2450 501 492 462
11 349 e2500 2110 618 1640 3490 297 676 2090 502 493 511
12 320 e2400 5690 434 1190 2580 1130 682 1980 501 491 421
13 288 e2300 5750 438 856 2320 3930 566 1770 498 510 373
14 273 e2200 3020 381 716 3290 2590 440 1360 495 495 359
15 266 e2100 2180 333 587 3830 1140 446 1210 497 513 353
16 250 2000 2010 365 554 2720 841 506 1190 493 627 344
17 235 1950 2920 341 540 1850 1290 507 1340 491 789 366
18 429 2060 3900 347 579 1960 1510 464 1550 506 685 370
19 1250 2180 3490 313 1310 2030 1040 941 2140 514 459 351
20 2010 1770 2960 301 2650 2160 756 1290 1850 514 381 960
21 1760 1550 2790 305 2400 1800 572 1170 1700 502 364 791
22 1500 1270 2670 331 2050 1270 465 934 1310 495 388 466
23 1570 970 2440 553 1880 1090 476 815 1090 492 409 373
24 1890 857 3040 731 1710 947 577 677 676 497 418 341
25 1860 966 3470 928 1190 730 537 1090 433 496 456 333
26 1690 2850 2630 1000 725 963 448 2890 543 483 406 336
27 1590 3360 2310 798 2110 1030 399 1890 562 487 379 325
28 1570 2540 2110 1550 3480 696 600 1260 499 487 371 324
29 1410 2120 2090 1780 --- 560 799 1650 493 492 365 333
30 1600 2000 2040 1600 --- 506 611 1680 499 490 375 321
31 1910 --- 1910 1390 --- 580 --- 1740 --- 493 408 ---
TOTAL 32322 54686 84810 27646 45837 62082 24043 29050 57435 15555 14711 12411
MEAN 1043 1823 2736 892 1637 2003 801 937 1915 502 475 414
MAX 2010 3360 5750 1820 3480 4180 3930 2890 5670 553 789 960
MIN 235 767 1690 301 540 506 294 373 433 483 364 321
MED 1090 1980 2440 868 1590 1960 555 700 1740 497 492 383
CFSM 1.22 2.13 3.20 1.04 1.92 2.35 .94 1.10 2.24 .59 .56 .48
IN. 1.41 2.38 3.69 1.20 2.00 2.70 1.05 1.27 2.50 .68 .64 .54
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1988 - 1997, BY WATER YEAR (WY)
MEAN 680 891 1058 1260 1275 1326 1023 953 1058 670 582 635
MAX 2074 1935 2736 3088 2853 2881 2946 3113 3117 1403 1147 1652
(WY) 1991 1993 1997 1993 1990 1993 1994 1996 1989 1990 1992 1990
MIN 247 212 272 268 333 493 540 293 293 370 407 326
(WY) 1989 1992 1992 1992 1992 1990 1988 1992 1992 1988 1988 1994
SUMMARY STATISTICS FOR 1996 CALENDAR YEAR FOR 1997 WATER YEAR WATER YEARS 1988 - 1997
ANNUAL TOTAL 548993 460588
ANNUAL MEAN 1500 1262 949
HIGHEST ANNUAL MEAN 1262 1997
LOWEST ANNUAL MEAN 546 1992
HIGHEST DAILY MEAN 9120 May 12 5750 Dec 13 9120 May 12 1996
LOWEST DAILY MEAN 235 Oct 17 235 Oct 17 183 Feb 9 1992
ANNUAL SEVEN-DAY MINIMUM 283 Oct 11 283 Oct 11 196 Feb 5 1992
INSTANTANEOUS PEAK FLOW 6630 Dec 12 9760 Apr 13 1994
INSTANTANEOUS PEAK STAGE 9.70 Dec 12 13.35 Apr 13 1994
INSTANTANEOUS LOW FLOW 223 Oct 17 183 Feb 9 1992
ANNUAL RUNOFF (CFSM) 1.76 1.48 1.11
ANNUAL RUNOFF (INCHES) 23.91 20.06 15.10
10 PERCENT EXCEEDS 3030 2670 2250
50 PERCENT EXCEEDS 1140 848 513
90 PERCENT EXCEEDS 417 373 301
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://pubsdata.usgs.gov/pubs/wdr/1997/oh-97-2/sw97/03097550.html
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