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 (414.20 ft NAVD 1988). 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 good except for estimated daily discharges, which are poor. |
Discharge, cubic feet per second, WATER YEAR OCTOBER 2004 TO SEPTEMBER 2005 DAILY MEAN VALUES |
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DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP |
1 | 3230 | 6180 | 31300 | 11700 | 33600 | 35900 | 14400 | 17000 | 5750 | 4420 | 5040 | 2350 |
2 | 3230 | 9690 | 33100 | 11700 | 31900 | 32900 | 13300 | 15900 | 5510 | 4390 | 4620 | 2280 |
3 | 3140 | 11600 | 34400 | 18200 | 30100 | 29200 | 12300 | 14500 | 5300 | 4420 | 4090 | 2190 |
4 | 3100 | 12500 | 35900 | 31200 | 28600 | 26200 | 11500 | 13200 | 5210 | 4450 | 3660 | 2120 |
5 | 3150 | 14500 | 37100 | 38800 | 27500 | 23600 | 11000 | 12000 | 5140 | 4600 | 3400 | 2070 |
6 | 3230 | 14800 | 38000 | 48000 | 26500 | 21500 | 10400 | 10400 | 5040 | 4860 | 3250 | 2030 |
7 | 3310 | 14900 | 38800 | 54400 | 25800 | 20100 | 9950 | 9150 | 4970 | 5020 | 3140 | 2160 |
8 | 3390 | 14200 | 39000 | 59600 | 26900 | 19500 | 9720 | 8420 | 4920 | 4840 | 3040 | 2310 |
9 | 3320 | 12600 | 38000 | 64200 | 27700 | 19900 | 9560 | 7980 | 5030 | 4290 | 2950 | 2190 |
10 | 3210 | 10900 | 37600 | 67800 | 29100 | 19900 | 9140 | 7760 | 5550 | 3850 | 2870 | 2090 |
11 | 3270 | 9790 | 38000 | 68900 | 30600 | 18800 | 8710 | 7530 | 6340 | 3620 | 2790 | 2020 |
12 | 3250 | 10400 | 38600 | 68400 | 31900 | 17200 | 8590 | 7330 | 6180 | 3550 | 2700 | 1970 |
13 | 3270 | 9540 | 39300 | 69200 | 33200 | 15700 | 11500 | 7940 | 8090 | 3350 | 2780 | 1900 |
14 | 3270 | 8480 | 39700 | 72100 | 35300 | 14300 | 10700 | 9430 | 10900 | 3260 | 3130 | 1840 |
15 | 3350 | 7580 | 39300 | 75500 | 36800 | 13400 | 9590 | 10500 | 10200 | 3290 | 3120 | 1810 |
16 | 3570 | 6850 | 37800 | 82500 | 37800 | 12500 | 9060 | 10500 | 11900 | 3310 | 3250 | 1780 |
17 | 3630 | 6460 | 33600 | 91000 | 39400 | 11800 | 8340 | 9870 | 13100 | 3260 | 3410 | 1780 |
18 | 4230 | 6190 | 26700 | e93500 | 41600 | 11400 | 7790 | 9420 | 12200 | 3270 | 3520 | 1860 |
19 | 7840 | 6840 | 21400 | e92500 | 44200 | 10900 | 7420 | 9070 | 10600 | 3510 | 3530 | 1950 |
20 | 6060 | 7370 | 17400 | 89100 | 46100 | 10600 | 7240 | 8790 | 8540 | 3870 | 3840 | 2210 |
21 | 5200 | 7170 | 14900 | 81200 | 47300 | 10400 | 7080 | 10600 | 7160 | 4090 | 3960 | 2270 |
22 | 5550 | 7170 | 13400 | 72800 | 47600 | 10200 | 7330 | 11800 | 6300 | 4790 | 3330 | 2340 |
23 | 5710 | 7270 | 12300 | e64000 | 46700 | 10200 | 11000 | 10800 | 5740 | 6970 | 3210 | 2890 |
24 | 6230 | 8150 | 11300 | e58400 | 45300 | 10400 | 16900 | 9610 | 5380 | 9440 | 3100 | 2880 |
25 | 5890 | 13300 | 10000 | 54100 | 43600 | 10500 | 16800 | 9240 | 5100 | 9540 | 2820 | 2750 |
26 | 5950 | 16100 | 8920 | 49100 | 41800 | 10400 | 15600 | 8700 | 4760 | 8060 | 2660 | 2900 |
27 | 6630 | 21500 | 7830 | 45000 | 40000 | 10900 | 16200 | 7780 | 4600 | 6310 | 2590 | 3400 |
28 | 6150 | 26300 | 7490 | 41600 | 38200 | 11900 | 16700 | 7010 | 4370 | 5040 | 2640 | 3700 |
29 | 5820 | 27800 | 7600 | 39200 | --- | 13800 | 17000 | 6560 | 4270 | 4560 | 2540 | 4520 |
30 | 5700 | 28900 | 8150 | 37300 | --- | 15800 | 17400 | 6320 | 4270 | 4880 | 2540 | 6140 |
31 | 5830 | --- | 9460 | 35500 | --- | 15500 | --- | 6070 | --- | 5290 | 2460 | --- |
TOTAL | 138710 | 365030 | 806350 | 1786500 | 1015100 | 515300 | 342220 | 301180 | 202420 | 148400 | 99980 | 74700 |
MEAN | 4475 | 12170 | 26010 | 57630 | 36250 | 16620 | 11410 | 9715 | 6747 | 4787 | 3225 | 2490 |
MAX | 7840 | 28900 | 39700 | 93500 | 47600 | 35900 | 17400 | 17000 | 13100 | 9540 | 5040 | 6140 |
MIN | 3100 | 6180 | 7490 | 11700 | 25800 | 10200 | 7080 | 6070 | 4270 | 3260 | 2460 | 1780 |
CFSM | 0.34 | 0.92 | 1.98 | 4.38 | 2.75 | 1.26 | 0.87 | 0.74 | 0.51 | 0.36 | 0.25 | 0.19 |
IN. | 0.39 | 1.03 | 2.28 | 5.05 | 2.87 | 1.46 | 0.97 | 0.85 | 0.57 | 0.42 | 0.28 | 0.21 |
e Estimated |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1940 - 2005, BY WATER YEAR (WY) | ||||||||||||
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MEAN | 5318 | 7523 | 11140 | 14490 | 17290 | 20620 | 20700 | 17560 | 14210 | 9699 | 5883 | 4843 |
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 2004 CALENDAR YEAR | FOR 2005 WATER YEAR | WATER YEARS 1940 - 2005 | |||
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ANNUAL TOTAL | 5736570 | 5795890 | ||||
ANNUAL MEAN | 15670 | 15880 | 12410 | |||
HIGHEST ANNUAL MEAN | 24340 | 1950 | ||||
LOWEST ANNUAL MEAN | 3206 | 1941 | ||||
HIGHEST DAILY MEAN | 79900 | Jun 21 | 93500 A | Jan 18 | 200000 | May 21 1943 |
LOWEST DAILY MEAN | 3100 | Oct 4 | 1780 | Sep 16,17 | 858 | Sep 27 1941 |
ANNUAL SEVEN-DAY MINIMUM | 3200 | Sep 30 | 1850 | Sep 13 | 870 | Sep 25 1941 |
MAXIMUM PEAK FLOW | 94000 | Jan 17 | 201000 | May 21 1943 | ||
MAXIMUM PEAK STAGE | 26.11 | Jan 17 | 29.36 | May 21 1943 | ||
ANNUAL RUNOFF (CFSM) | 1.19 | 1.21 | 0.943 | |||
ANNUAL RUNOFF (INCHES) | 16.21 | 16.38 | 12.81 | |||
10 PERCENT EXCEEDS | 36400 | 39300 | 30200 | |||
50 PERCENT EXCEEDS | 9800 | 8920 | 7330 | |||
90 PERCENT EXCEEDS | 4500 | 2900 | 2280 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |