Station list     Available data
UPPER MISSISSIPPI RIVER BASIN


05587455       MISSISSIPPI RIVER BELOW GRAFTON, IL

 
(Ambient Water-Quality Monitoring Network Station)
 

LOCATION.-- Lat 38°57'04", long 90°22'16" (NAD of 1927), in sec.24, T.6 N., R.11 W., Jersey County, Hydrologic Unit 07110009, 11.3 mi above Lock and Dam 26, 19.0 mi above mouth of Missouri River, and at mile 214.6 upstream from the mouth of the Ohio River.
 

DRAINAGE AREA.-- 171,300 mi2, approximately.
 

PERIOD OF RECORD.--

SURFACE-WATER QUALITY
 

CHEMICAL: March 1989 to current year.
 

SEDIMENT: October 1989 to current year.
 

REMARKS.-- Ambient Water-Quality Monitoring Network station Nov. 1992 to current year. National Stream-Quality Accounting Network station September 1989 to October 1992. Discharge for sediment records obtained from Mississippi River at Grafton (05587450).
 

EXTREMES FOR PERIOD OF RECORD.--

SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily mean, 1,910 mg/L, May 23, 1990; minimum daily mean, 1 mg/L, Sept. 10, 1991.

SUSPENDED-SEDIMENT LOADS: Maximum daily, 1,090,000 tons, May 23, 1990; minimum daily, 186 tons, Sept. 10, 1991.
 

EXTREMES FOR CURRENT YEAR.--

SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily mean, 691 mg/L, May 10; minimum daily mean, 11 mg/L, Jan. 15.

SUSPENDED-SEDIMENT LOADS: Maximum daily, 420,000 tons, May 11; minimum daily, 973 tons, Jan. 15.
 

REMARKS FOR CURRENT YEAR.--Sediment records fair except those for estimated daily loads, which are poor.
SEDIMENT DISCHARGE, SUSPENDED (TONS/DAY), WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003
MEAN MEAN MEAN
MEAN CONCEN- SEDIMENT MEAN CONCEN- SEDIMENT MEAN CONCEN- SEDIMENT
DISCHARGE TRATION DISCHARGE DISCHARGE TRATION DISCHARGE DISCHARGE TRATION DISCHARGE
DAY (CFS) (MG/L) (TONS/DAY) (CFS) (MG/L) (TONS/DAY) (CFS) (MG/L) (TONS/DAY)
 
OCTOBER NOVEMBER DECEMBER
1 63100 68 11600 77300 79 17800 47900 61 7830
2 65200 68 11800 73200 70 14100 47700 68 8720
3 67000 69 12400 80400 66 13700 47900 77 9930
4 68500 77 14000 76600 71 15100 48400 72 9370
5 73600 85 16200 81900 73 15600 48000 76 9860
 
6 73100 75 14900 76700 72 15300 49400 76 10000
7 80100 46 9540 79700 72 15100 47900 73 9540
8 82300 57 12500 78900 75 16100 47100 76 9740
9 83000 78 17400 71600 82 16700 45500 74 9210
10 81800 74 16400 61700 87 15600 45200 63 7740
 
11 87900 74 16900 61300 88 14600 43900 61 7320
12 91000 83 20000 63300 88 14800 45000 66 7960
13 95200 94 23600 65700 80 14000 48700 67 8480
14 92400 92 23200 63300 68 11800 51800 72 9770
15 94000 99 24800 66600 64 11200 52900 79 11100
 
16 109000 108 29600 65300 71 12700 51900 86 12200
17 94500 115 31700 67500 74 13300 63200 81 12600
18 100000 130 34200 67200 69 12600 73500 81 14900
19 105000 134 37300 62700 70 12300 69000 92 17700
20 100000 130 35800 56300 73 11700 51400 88 14300
 
21 102000 129 35200 56800 73 11100 54200 85 12100
22 105000 120 33600 52700 68 9990 54500 81 11900
23 101000 102 28300 61600 65 9980 57800 85 12900
24 98000 96 25800 59100 65 10500 65400 84 13900
25 101000 94 25400 52900 61 9210 63700 78 13500
 
26 89200 89 22900 54400 62 8960 57900 94 15400
27 76900 90 20200 56300 70 10500 53800 115 17300
28 79800 85 18100 48000 73 10300 45000 135 18100
29 88200 75 17100 47500 70 9000 44000 144 17300
30 87700 74 17600 47000 67 8560 47700 120 14900
 
31 89300 80 19000 --- --- --- 59000 106 15300
 
TOTAL 2724800 --- 677040 1933500 --- 382200 1629300 --- 370870
 
JANUARY FEBRUARY MARCH
1 66400 107 18100 39800 19 1840 37700 109 11100
2 62800 108 18900 40900 --- 3090 39200 113 11700
3 52800 120 18700 39800 --- 3900 40700 112 12100
4 50400 130 18100 39800 --- 3710 39800 108 11700
5 54400 136 19200 39200 --- 3400 38500 107 11300
 
6 55900 131 19500 38500 --- 3190 38000 104 10800
7 49900 124 17700 37500 --- 2960 42500 100 10800
8 53600 97 13500 36700 29 2940 35100 98 10200
9 51000 63 8960 36800 32 3180 35900 100 9610
10 48500 54 7250 35400 34 3360 36000 101 9820
 
11 52200 39 5340 35700 42 4030 40100 97 10000
12 53300 22 3160 39300 54 5490 42000 113 12500
13 47100 20 2760 44300 49 5520 45400 138 16300
14 35100 16 1730 48300 41 5100 55200 131 17800
15 31300 11 973 50000 89 11800 51800 120 17400
 
16 43500 14 1440 50800 129 17500 52300 132 18600
17 51300 15 1960 39300 95 11600 57800 129 19200
18 42200 19 2410 37300 77 8010 55500 109 16700
19 42500 19 2200 41200 71 7550 59900 178 27800
20 37300 30 3190 45600 48 5640 93500 273 56500
 
21 36500 45 4460 47400 39 4910 99800 268 69900
22 35200 43 4110 40200 35 4160 88900 249 63400
23 35600 40 3840 36800 70 7220 84000 230 53600
24 38700 --- 4350 33300 100 9440 73100 197 41800
25 37100 --- 4800 34200 105 9580 72000 184 36100
 
26 35300 --- 4340 32600 121 10900 66200 179 33300
27 34500 --- 3790 37800 119 11300 71400 181 33600
28 34300 28 2610 37500 110 11200 67500 182 34100
29 32800 25 2300 --- --- --- 66000 164 29500
30 34600 28 2570 --- --- --- 61100 129 22100
 
31 33200 20 1820 --- --- --- 66500 156 26900
 
TOTAL 1369300 --- 224063 1116000 --- 182520 1753400 --- 766230
 
APRIL MAY JUNE
1 68900 229 41900 143000 187 72200 187000 265 140000
2 70600 247 46500 155000 173 69300 169000 288 139000
3 67500 213 39700 177000 181 81100 164000 310 139000
4 60000 190 32700 195000 230 116000 151000 296 126000
5 71900 184 32800 215000 275 152000 141000 248 97700
 
6 82500 173 36000 222000 309 183000 132000 205 75400
7 77800 154 33300 222000 334 200000 139000 195 71200
8 77900 129 27000 220000 336 200000 128000 195 70200
9 75000 120 24800 218000 466 276000 110000 196 63000
10 70600 126 24700 222000 691 411000 109000 197 58200
 
11 67200 124 23000 241000 672 420000 117000 208 63600
12 68300 130 23800 248000 526 347000 115000 243 76200
13 70700 158 29700 239000 502 330000 128000 260 85300
14 63100 157 28300 225000 511 320000 149000 267 99800
15 62800 137 23300 218000 431 257000 138000 258 100000
 
16 59300 127 20900 218000 340 200000 124000 220 78000
17 74600 121 22000 218000 344 203000 115000 215 69300
18 78300 110 22600 219000 385 227000 116000 217 67400
19 84300 82 18000 220000 400 237000 120000 210 66800
20 81900 69 15400 221000 382 227000 116000 207 66000
 
21 79200 68 14800 220000 345 205000 110000 197 60100
22 88800 72 16300 220000 314 187000 106000 183 53500
23 97800 91 22900 222000 308 184000 103000 161 45400
24 107000 118 32600 225000 294 177000 100000 169 46500
25 110000 144 42300 228000 286 175000 84300 234 58200
 
26 120000 169 52300 229000 303 187000 106000 282 72700
27 123000 181 59300 230000 317 197000 102000 307 86000
28 123000 189 62600 230000 314 195000 97300 277 74400
29 134000 188 65100 227000 298 184000 92400 227 58200
30 143000 186 69300 221000 279 169000 91200 228 56600
 
31 --- --- --- 205000 264 152000 --- --- ---
 
TOTAL 2559000 --- 1003900 6713000 --- 6540600 3660200 --- 2363700
 
JULY AUGUST SEPTEMBER
1 97400 235 59800 92500 114 28800 55900 154 17500
2 97200 198 51900 84400 111 26400 41300 159 20900
3 105000 150 41000 68700 116 24000 20600 137 11400
4 105000 143 40700 63400 119 21300 31000 116 8120
5 105000 149 42300 59000 127 21000 25100 108 8190
 
6 107000 142 40700 61500 127 20600 29200 103 7530
7 106000 154 44100 53300 118 18400 30800 95 7720
8 112000 193 56400 56500 98 14500 28400 86 6860
9 116000 257 79000 51300 89 13000 23800 85 6010
10 163000 368 139000 46000 94 12300 26100 84 5690
 
11 190000 468 223000 42900 98 11800 24900 83 5740
12 192000 521 269000 38300 89 9790 23000 85 5480
13 189000 500 257000 37100 71 7220 23600 81 5080
14 185000 404 204000 40800 70 7330 27700 74 5120
15 177000 316 155000 37200 86 9080 39400 71 6450
 
16 168000 284 132000 30400 94 8580 42600 68 7520
17 156000 271 118000 30800 72 5970 35400 64 6780
18 148000 277 114000 34300 58 5120 23400 63 5010
19 171000 309 133000 34500 75 6930 26100 80 5360
20 161000 336 150000 35800 90 8580 32800 81 6480
 
21 135000 294 117000 34800 87 8270 33800 65 5810
22 119000 241 82700 31400 82 7360 34400 65 5940
23 131000 240 81200 27900 82 6570 26400 67 5530
24 134000 268 95800 26900 74 5480 33300 73 5900
25 127000 268 94500 40100 58 5290 33700 72 6510
 
26 122000 221 74200 37100 56 5830 25300 68 5450
27 115000 178 56700 35200 55 5360 30700 78 5910
28 105000 175 51900 33500 60 5580 27200 79 6210
29 108000 198 57100 27100 92 7540 29600 71 5450
30 103000 181 51500 22600 122 8210 32600 70 5850
 
31 94000 144 38100 28300 139 9540 --- --- ---
 
TOTAL 4143600 --- 3150600 1343600 --- 355730 918100 --- 217500
 
YEAR 29863800 16234953


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data