LOCATION.-- Lat 39°01'13", long 87°34'07" (NAD of 1927), in NE1/4SW1/4 sec.30, T.7 N., R.10 W., Sullivan County, Hydrologic Unit 05120111, (MEROM, IN-IL. quadrangle), on left bank at downstream side of Illinois Central Railroad bridge at Riverton, 0.5 mi downstream from Turtle Creek, 2 mi south of Merom, and at mile 162.0. |
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DRAINAGE AREA.-- 13,161 mi2. |
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PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE |
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DISCHARGE: October 1938 to current year. Prior to April 1939, monthly discharge only published in WSP 1305. |
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STAGE: June 1911 to December 1914 available in the U.S. Army Corps of Engineers office, Louisville, Ky. |
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REVISED RECORDS.-- WSP 1335: 1939, 1950. WDR IN-73-1: Drainage area. |
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GAGE.-- Water-stage recorder. Datum of gage is 414.65 ft above NGVD of 1929. Prior to July 17, 1951, nonrecording gage at same site and datum. |
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REMARKS.-- Flow partially regulated by upstream reservoirs. |
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EXTREMES FOR PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 201,000 ft3/s, May 21, 1943, gage height 29.36 ft; minimum daily discharge, 858 ft3/s, September 27, 1941. |
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EXTREMES OUTSIDE PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE: Flood of March 28, 1913, reached a stage of 26.4 ft, from graph based on once daily readings by Illinois Central Railroad Co., discharge, 250,000 ft3/s. |
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REMARKS FOR CURRENT YEAR.--Records fair except for estimated daily discharges, which are poor. |
Discharge, cubic feet per second, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004 DAILY MEAN VALUES |
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DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP |
1 | 29300 | 7670 | 19600 | 33300 | 7570 | 12100 | 32800 | 6770 | 19500 | 17000 | 5330 | 20000 |
2 | 30900 | 7510 | 19000 | 34900 | 7420 | 13900 | 33200 | 6770 | 20800 | 15400 | 5090 | 20900 |
3 | 31500 | 7510 | 19300 | 36400 | 8090 | 14900 | 33300 | 7550 | 24100 | 14100 | 4940 | 19400 |
4 | 28600 | 7380 | 18300 | 39400 | 8750 | 17300 | 32400 | 8350 | 25400 | 14200 | 4870 | 16900 |
5 | 24100 | 7190 | 16400 | 45100 | 8740 | 23800 | 29000 | 8440 | 24900 | 13400 | 4820 | 14700 |
6 | 19700 | 7120 | 14600 | 47300 | 8450 | 27700 | 24000 | 8200 | 21400 | 13600 | 5200 | 14000 |
7 | 16300 | 7250 | 13500 | 49400 | 8270 | 29100 | 19000 | 8030 | 16900 | 13100 | 5500 | e13300 |
8 | 14300 | 7100 | 12800 | 52700 | 8290 | 30700 | 15900 | 8010 | 14000 | 12200 | 5750 | e12000 |
9 | 13400 | 6980 | 12400 | 55200 | 8060 | 32100 | 14000 | 7800 | 12200 | 12200 | 6280 | 10500 |
10 | 12700 | 6860 | 12300 | 55500 | 7850 | 33100 | 12500 | 7340 | 10700 | 11600 | 5990 | 8730 |
11 | 12300 | 6650 | 13100 | 54100 | 7900 | 33400 | 11400 | 6970 | 9680 | 13800 | 5390 | 7890 |
12 | 11800 | 6490 | 14400 | 51600 | 8050 | 30800 | 10500 | 7140 | 12000 | 20200 | 4860 | 7450 |
13 | 11100 | 6410 | 17700 | 48000 | 7940 | 25200 | 9650 | 7570 | 23500 | 20600 | 4520 | 6950 |
14 | 10600 | 6450 | 20800 | 43300 | 7630 | 19600 | 9050 | 7490 | 27900 | 18500 | 4360 | 6420 |
15 | 11700 | 6930 | 21100 | 37500 | 7560 | 15900 | 8650 | 7350 | 31300 | 14900 | 4230 | 5750 |
16 | 10900 | 7490 | 19000 | 30900 | 7480 | 13900 | 8260 | 7290 | 36400 | 12600 | 4080 | 5360 |
17 | 11000 | 8410 | 16100 | 26100 | 7340 | 12800 | 7950 | 8120 | 44900 | 11400 | 3850 | 5050 |
18 | 11500 | 8460 | 14000 | 24500 | 7090 | 12000 | 7690 | 8640 | 54900 | 9680 | 3780 | 4810 |
19 | 12500 | 11900 | 12600 | 22500 | 7050 | 11200 | 7450 | 8360 | 66000 | 8800 | 3730 | 4630 |
20 | 12600 | 18800 | 11500 | 19300 | 7370 | 10600 | 7250 | 11900 | 76400 | 9330 | 3690 | 4450 |
21 | 11600 | 24300 | 10600 | 16600 | 8330 | 10100 | 7180 | 14100 | 79900 | 8660 | 4620 | 4280 |
22 | 10400 | 25800 | 10000 | 14600 | 10300 | 9570 | 7370 | 13400 | 78300 | 7830 | 6750 | 4170 |
23 | 9810 | 25700 | 11900 | 13300 | 13000 | 9220 | 7540 | 11800 | 73000 | 7990 | 8180 | 3990 |
24 | 9310 | 26300 | 21500 | 12100 | 16700 | 8970 | 7670 | 11200 | 65700 | 6940 | 8860 | 3860 |
25 | 8980 | 27300 | 25800 | 11500 | 18200 | 8640 | 7910 | 13400 | 57300 | 6820 | 9440 | 3700 |
26 | 8690 | 28100 | 27100 | 10900 | 17600 | 8870 | 8090 | 13900 | 48400 | 7240 | 9080 | 3530 |
27 | 8170 | 28600 | 27800 | 10200 | 16100 | 14900 | 7910 | 15800 | 38500 | 7480 | 8510 | 3500 |
28 | 7830 | 28100 | 28200 | 9820 | 14300 | 23600 | e7600 | 19600 | 28900 | 6980 | 7970 | 3430 |
29 | 7760 | 25900 | 29000 | 9430 | 12600 | 27400 | 7520 | 15700 | 23300 | 6280 | 8890 | 3330 |
30 | 7730 | 22500 | 31100 | 9020 | --- | 29200 | 7000 | 12500 | 19400 | 5830 | 10600 | 3300 |
31 | 7700 | --- | 32200 | 8350 | --- | 31600 | --- | 17200 | --- | 5750 | 15600 | --- |
TOTAL | 434780 | 423160 | 573700 | 932820 | 284030 | 602170 | 409740 | 316690 | 1085580 | 354410 | 194760 | 246280 |
MEAN | 14030 | 14110 | 18510 | 30090 | 9794 | 19420 | 13660 | 10220 | 36190 | 11430 | 6283 | 8209 |
MAX | 31500 | 28600 | 32200 | 55500 | 18200 | 33400 | 33300 | 19600 | 79900 | 20600 | 15600 | 20900 |
MIN | 7700 | 6410 | 10000 | 8350 | 7050 | 8640 | 7000 | 6770 | 9680 | 5750 | 3690 | 3300 |
CFSM | 1.07 | 1.07 | 1.41 | 2.29 | 0.74 | 1.48 | 1.04 | 0.78 | 2.75 | 0.87 | 0.48 | 0.62 |
IN. | 1.23 | 1.20 | 1.62 | 2.64 | 0.80 | 1.70 | 1.16 | 0.90 | 3.07 | 1.00 | 0.55 | 0.70 |
e Estimated |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1940 - 2004, BY WATER YEAR (WY) | ||||||||||||
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MEAN | 5331 | 7451 | 10910 | 13830 | 17000 | 20680 | 20840 | 17680 | 14320 | 9775 | 5924 | 4880 |
MAX | 26610 | 39340 | 39250 | 80210 | 54530 | 60520 | 41840 | 68010 | 45640 | 44660 | 23680 | 25370 |
(WY) | 2002 | 1993 | 1986 | 1950 | 1950 | 1982 | 1957 | 1943 | 1958 | 2003 | 1958 | 1989 |
MIN | 1382 | 1437 | 1213 | 1318 | 2058 | 2763 | 5623 | 3435 | 2601 | 1968 | 1215 | 1261 |
(WY) | 1957 | 1954 | 1964 | 1977 | 1963 | 1941 | 2000 | 1941 | 1977 | 1988 | 1941 | 1940 |
SUMMARY STATISTICS | FOR 2003 CALENDAR YEAR | FOR 2004 WATER YEAR | WATER YEARS 1940 - 2004 | |||
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ANNUAL TOTAL | 5931690 | 5858120 | ||||
ANNUAL MEAN | 16250 | 16010 | 12360 | |||
HIGHEST ANNUAL MEAN | 24340 | 1950 | ||||
LOWEST ANNUAL MEAN | 3206 | 1941 | ||||
HIGHEST DAILY MEAN | 96700 | Jul 17 | 79900 | Jun 21 | 200000 | May 21 1943 |
LOWEST DAILY MEAN | 2790 | Feb 2 | 3300 | Sep 30 | 858 | Sep 27 1941 |
ANNUAL SEVEN-DAY MINIMUM | 2850 | Jan 29 | 3520 | Sep 24 | 870 | Sep 25 1941 |
MAXIMUM PEAK FLOW | 80100 | Jun 21 | 201000 | May 21 1943 | ||
MAXIMUM PEAK STAGE | 22.30 | Jun 21 | 29.36 | May 21 1943 | ||
ANNUAL RUNOFF (CFSM) | 1.23 | 1.22 | 0.939 | |||
ANNUAL RUNOFF (INCHES) | 16.77 | 16.56 | 12.76 | |||
10 PERCENT EXCEEDS | 34100 | 31500 | 30000 | |||
50 PERCENT EXCEEDS | 11100 | 11600 | 7300 | |||
90 PERCENT EXCEEDS | 4710 | 5810 | 2280 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |