Station list
05512500 BAY CREEK AT PITTSFIELD, IL
LOCATION.--Lat 39°37'30", long 90°47'40", in NE¼SW¼ sec.18, T.5 S., R.3 W., Pike County, Hydrologic Unit 07110004, on
right bank at downstream side of bridge on abandoned county road, 50 ft downstream from Panther Creek, 0.1 mi downstream
from U.S. Highway 54, 1.4 mi northeast of Pittsfield, and at mile 33.6.
DRAINAGE AREA.--39.4 mi2.
PERIOD OF RECORD.--October 1939 to current year.
REVISED RECORDS.--WSP 1175: 1940(P), 1941, 1949. WSP 1508: 1942. WDR IL-75-1: Drainage area.
GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 638.48 ft above sea level (levels by U.S. Army Corps of
Engineers). Prior to Dec. 7, 1939, nonrecording gage at same site and datum.
REMARKS.--Records good except those for estimated daily discharges, which are poor. Effluent from sewage-treatment plant
upstream at Pittsfield averaged about 1.73 ft3/s. Gage-height telemeter at station.
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of Sept. 8, 1926, reached a stage of 18.4 ft, from floodmark, discharge not
determined.
DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998
DAILY MEAN VALUES
|
|---|
| DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP
|
|---|
| |
| 1 | 1.3 | e.50 | 3.7 | e2.4 | 16 | 60 | 66 | 76 | 11 | 24 | 2.7 | 2.0 |
| 2 | 1.0 | e.45 | 2.1 | e3.0 | 16 | 46 | 39 | 81 | 9.7 | 17 | 2.4 | 1.2 |
| 3 | .88 | e.40 | 2.2 | 5.1 | 11 | 40 | 460 | 35 | 8.6 | 14 | 2.8 | 1.0 |
| 4 | .79 | e.37 | 2.1 | 8.4 | 11 | 35 | 145 | 27 | 9.4 | 23 | 12 | .97
|
| 5 | .53 | 8.9 | 1.8 | 14 | 10 | 31 | 74 | 22 | 14 | 14 | 18 | .82
|
| |
| 6 | .50 | 8.4 | 1.4 | 25 | 8.6 | 28 | 54 | 38 | 9.1 | 12 | 3.8 | .70
|
| 7 | .50 | 1.9 | 1.1 | 42 | 8.1 | 26 | 48 | 112 | 7.3 | 21 | 7.6 | .77
|
| 8 | .54 | 1.1 | 1.1 | 244 | 7.3 | 371 | 39 | 41 | 83 | 18 | 7.1 | .82
|
| 9 | .89 | .80 | 1.6 | 98 | 7.1 | 233 | 35 | 26 | 322 | 10 | 2.8 | 1.0 |
| 10 | .69 | e.60 | 2.0 | 31 | 7.9 | 76 | 30 | 21 | 25 | 19 | 2.7 | 1.4 |
| |
| 11 | .67 | e.52 | 2.5 | 15 | 660 | 44 | 27 | 18 | 886 | 17 | 2.9 | 1.3 |
| 12 | .71 | e.45 | 2.2 | 11 | 163 | 35 | 24 | 20 | 353 | 9.4 | 2.5 | 1.3 |
| 13 | 1.2 | e.40 | 1.8 | 7.6 | 82 | 92 | 48 | 15 | 60 | 7.8 | 2.2 | 1.7 |
| 14 | .44 | e.80 | 1.5 | 6.2 | 55 | 102 | 72 | 13 | 140 | 6.9 | 2.1 | 5.4 |
| 15 | .44 | e.60 | 1.4 | e5.4 | 43 | 51 | 208 | 12 | 84 | 6.2 | 1.8 | 5.3 |
| |
| 16 | .37 | e.50 | 1.9 | e5.0 | 138 | 40 | 57 | 11 | 46 | 5.8 | 1.5 | 1.9 |
| 17 | .32 | e.45 | 2.4 | e4.5 | 350 | 682 | 37 | 9.0 | 28 | 5.3 | 1.4 | 1.9 |
| 18 | e.29 | e.40 | 2.3 | e4.2 | 232 | 281 | 30 | 8.1 | 23 | 4.6 | 1.2 | 1.9 |
| 19 | e.27 | e.37 | 2.5 | e4.0 | 134 | 104 | 26 | 7.5 | 32 | 4.1 | 1.1 | 1.7 |
| 20 | e.26 | e.35 | 2.4 | e3.8 | 97 | 246 | 23 | 7.0 | 32 | 3.8 | 1.0 | 1.6 |
| |
| 21 | e.25 | e.60 | 2.0 | e3.7 | 69 | 261 | 20 | 20 | 134 | 3.6 | 1.0 | 2.0 |
| 22 | e.24 | e.50 | 4.8 | e3.7 | 52 | 113 | 19 | 858 | 325 | 3.4 | 1.1 | 1.7 |
| 23 | e.23 | e.45 | 3.9 | e3.8 | 44 | 68 | 17 | 156 | 50 | 3.3 | 1.1 | 1.1 |
| 24 | e.80 | e.42 | 27 | e4.0 | 37 | 52 | 16 | 149 | 28 | 2.9 | 1.1 | 1.5 |
| 25 | e.60 | e.39 | 18 | 4.5 | 31 | 46 | 17 | 61 | 19 | 3.0 | 1.0 | 34 |
| |
| 26 | 1.8 | e.37 | 4.7 | 8.8 | 147 | 38 | 15 | 100 | 15 | 3.2 | 1.1 | 3.6 |
| 27 | .73 | e.35 | 3.1 | 44 | 766 | 34 | 12 | 32 | 12 | 3.3 | 1.0 | 1.6 |
| 28 | .93 | 3.1 | 2.7 | 88 | 94 | 134 | 122 | 21 | 47 | 3.1 | 1.1 | 2.0 |
| 29 | e.70 | 6.8 | e2.2 | 64 | --- | 57 | 146 | 17 | 315 | 2.9 | 1.2 | 2.3 |
| 30 | e.60 | 15 | e2.0 | 26 | --- | 42 | 50 | 15 | 118 | 4.5 | 1.1 | 1.2 |
| |
| 31 | e.55 | --- | e2.0 | 18 | --- | 105 | --- | 13 | --- | 4.0 | 1.5 | --- |
| TOTAL | 20.02 | 56.24 | 112.4 | 808.1 | 3297.0 | 3573 | 1976 | 2041.6 | 3246.1 | 280.1 | 91.9 | 85.68
|
| MEAN | .65 | 1.87 | 3.63 | 26.1 | 118 | 115 | 65.9 | 65.9 | 108 | 9.04 | 2.96 | 2.86
|
| MAX | 1.8 | 15 | 27 | 244 | 766 | 682 | 460 | 858 | 886 | 24 | 18 | 34
|
| MIN | .23 | .35 | 1.1 | 2.4 | 7.1 | 26 | 12 | 7.0 | 7.3 | 2.9 | 1.0 | .70
|
| CFSM | .02 | .05 | .09 | .66 | 2.99 | 2.93 | 1.67 | 1.67 | 2.75 | .23 | .08 | .07
|
| IN. | .02 | .05 | .11 | .76 | 3.11 | 3.37 | 1.87 | 1.93 | 3.06 | .26 | .09 | .08
|
e Estimated
| STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1940 - 1998, BY WATER YEAR (WY)
|
|---|
| MEAN | 12.7 | 16.8 | 17.9 | 17.0 | 30.4 | 40.4 | 49.6 | 51.2 | 30.6 | 27.2 | 13.3 | 20.4
|
| MAX | 140 | 201 | 142 | 114 | 126 | 132 | 207 | 283 | 243 | 417 | 103 | 359
|
| (WY) | 1942 | 1986 | 1983 | 1974 | 1942 | 1973 | 1973 | 1970 | 1945 | 1981 | 1961 | 1993
|
| MIN | .20 | .19 | .081 | .057 | .27 | .45 | 3.61 | 1.23 | .94 | .10 | .074 | .057
|
| (WY) | 1951 | 1951 | 1951 | 1940 | 1954 | 1956 | 1963 | 1954 | 1977 | 1940 | 1941 | 1940
|
| SUMMARY STATISTICS | FOR 1997 CALENDAR YEAR | FOR 1998 WATER YEAR | WATER YEARS 1940 - 1998 |
|---|
| ANNUAL TOTAL | 4559.92 | | 15588.14 | | |
|
| ANNUAL MEAN | 12.5 | | 42.7 | | 27.2 |
|
| HIGHEST ANNUAL MEAN | | | | | 94.8 | 1993
|
| LOWEST ANNUAL MEAN | | | | | 2.76 | 1940
|
| HIGHEST DAILY MEAN | 368 | Feb 21 | 886 | Jun 11 | 5660 | Jul 26 1981
|
| LOWEST DAILY MEAN | .23 A | Oct 23 | .23 A | Oct 23 | .00 | B
|
| ANNUAL SEVEN-DAY MINIMUM | .27 | Oct 17 | .27 | Oct 17 | .00 | Aug 19 1941
|
| INSTANTANEOUS PEAK FLOW | | | 2630 | May 22 | 13700 C | Sep 14 1993
|
| INSTANTANEOUS PEAK STAGE | | | 9.96 | May 22 | 14.92 | Sep 14 1993
|
| INSTANTANEOUS LOW FLOW | | | | D | |
|
| ANNUAL RUNOFF (CFSM) | .32 | | 1.08 | | .69 |
|
| ANNUAL RUNOFF (INCHES) | 4.31 | | 14.72 | | 9.39 |
|
| 10 PERCENT EXCEEDS | 24 | | 103 | | 38 |
|
| 50 PERCENT EXCEEDS | 2.3 | | 7.6 | | 3.7 |
|
| 90 PERCENT EXCEEDS | .50 | | .60 | | .30 |
|
A - Estimated.
B - Several days in most years.
C - From rating curve extended above 4,400 ft3/s.
D - Minimum recorded, 0.13 ft3/s, Oct. 16-18, but may have been less during periods of estimated discharge in Oct. and Nov.