Station list     Available data
UPPER MISSISSIPPI RIVER BASIN


05587455       MISSISSIPPI RIVER BELOW GRAFTON, IL

(National Stream-Quality Accounting Network Station)


LOCATION.-- Lat 38°57'04", long 90°22'16", 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.-- Established ambient water-quality monitoring network station Nov. 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, 640 mg/L, Feb. 27; minimum daily mean, 49 mg/L, Oct. 21.
SUSPENDED-SEDIMENT LOADS: Maximum daily, 197,000 tons, June 16; minimum daily, 4,590 tons, Jan. 25.

REMARKS.--Sediment records fair except for estimated daily loads, which are poor.
SEDIMENT DISCHARGE, SUSPENDED (TONS/DAY), WATER YEAR OCTOBER 2000 TO SEPTEMBER 2001
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 51700 69 9630 50900 62 8170 59900 78 13200
2 44500 78 12900 44200 65 6620 55500 97 14200
3 45000 79 12500 43400 68 8160 60000 96 15200
4 53500 79 12400 50900 65 7920 59500 88 12900
5 71000 98 15500 56800 55 7050 50500 98 15500
 
6 61300 125 19500 75400 54 6770 46300 97 15200
7 57200 120 17700 56600 69 8510 38400 83 16500
8 54900 98 15000 60300 78 8500 34500 92 17200
9 50100 84 11200 61300 72 7940 37600 78 12400
10 36600 78 10900 71100 79 9080 41600 85 13600
 
11 40000 62 9710 94800 96 10700 42000 99 17700
12 45500 68 10100 93000 108 15100 33900 101 17900
13 56100 81 12200 93200 119 13500 37700 110 17200
14 43100 75 11300 83800 107 12400 37600 --- e16200
15 61600 75 10700 89700 118 13800 29300 --- e14600
 
16 63100 81 10400 84300 119 15600 34500 --- e17100
17 59800 70 8390 84500 107 13100 46000 --- e17100
18 50800 69 9070 90300 122 16800 48000 --- e15800
19 42900 69 8520 88700 134 16500 46000 --- e16400
20 33800 62 8080 83000 108 11800 44000 --- e12400
 
21 35400 49 6230 84200 98 13400 43000 --- e11500
22 41200 50 5420 87800 108 15000 48000 --- e11000
23 54400 56 7040 66800 102 11100 50000 --- e11200
24 56600 64 7720 53500 95 13400 51000 --- e12200
25 50900 64 8220 52800 88 12700 46000 --- e11300
 
26 49900 70 9090 56300 87 11000 42000 --- e10200
27 53700 66 9070 49300 90 13600 40000 --- e10900
28 55600 79 9400 56000 67 9960 39000 --- e10000
29 63900 81 10700 46700 68 10800 38000 --- e10600
30 65800 64 8920 54500 75 11200 39000 --- e11900
 
31 61800 64 7940 --- --- --- 40000 --- e11900
 
JANUARY FEBRUARY MARCH
1 43000 --- e12100 98500 66 6630 256000 453 138000
2 41000 --- e12900 84900 64 6380 251000 469 126000
3 40000 --- e11400 107000 62 6420 230000 450 130000
4 42000 --- e9420 99100 66 5440 153000 415 125000
5 41000 --- e10100 89700 113 11400 123000 405 124000
 
6 42000 --- e10900 94400 193 22300 158000 275 84400
7 41000 --- e7970 88100 180 19400 153000 238 71500
8 40000 --- e8580 88300 186 21400 138000 309 89500
9 42000 --- e8720 102000 139 14000 120000 286 78200
10 41000 --- e8110 197000 133 12800 122000 238 63800
 
11 40000 --- e7190 229000 122 10800 122000 189 52500
12 40000 --- e9170 230000 165 18500 126000 151 41800
13 45000 --- e8440 225000 232 23900 106000 158 41300
14 50000 --- e8070 189000 329 34000 106000 185 46500
15 56000 --- e7500 145000 301 31600 152000 278 64300
 
16 53000 --- e5870 128000 290 28700 210000 265 63400
17 49400 68 7820 113000 262 32600 242000 313 78700
18 53000 82 8320 66300 231 27400 260000 420 105000
19 46400 76 7590 53500 204 22200 260000 460 103000
20 53400 81 7470 60500 224 24500 260000 434 91200
 
21 67900 88 8760 81700 262 27600 257000 339 68600
22 59400 91 9680 73600 190 17900 246000 239 49900
23 57500 91 7870 84100 183 19500 236000 239 49800
24 50200 81 7250 139000 147 16700 233000 253 46100
25 47200 54 4590 231000 277 36300 231000 255 44300
 
26 50600 51 4880 260000 634 128000 228000 232 38100
27 40500 62 7010 264000 640 179000 226000 234 41400
28 49500 69 8240 256000 484 148000 224000 223 31800
29 59500 71 8640 --- --- --- 216000 176 30200
30 129000 69 7300 --- --- --- 190000 175 31600
 
31 117000 67 7170 --- --- --- 178000 167 29200
 
APRIL MAY JUNE
1 168000 158 29700 326000 109 31900 254000 160 44600
2 158000 152 25100 325000 107 28800 259000 213 69700
3 165000 152 25600 323000 99 26800 269000 286 107000
4 169000 141 20200 320000 89 22700 284000 298 109000
5 161000 143 24400 317000 95 22100 283000 259 105000
 
6 155000 145 24000 314000 100 22900 284000 241 108000
7 148000 155 25300 314000 97 23400 299000 278 129000
8 158000 155 21800 316000 89 18400 310000 294 137000
9 183000 189 27900 321000 101 20100 309000 260 126000
10 204000 267 39500 327000 138 27700 305000 217 108000
 
11 230000 223 34300 330000 139 30000 296000 170 86600
12 239000 280 42700 330000 136 29300 294000 147 79000
13 247000 288 49800 331000 132 26700 293000 157 87200
14 249000 300 45800 336000 141 29600 291000 194 109000
15 251000 317 44100 343000 139 30300 295000 257 149000
 
16 255000 302 40800 350000 156 33700 284000 337 197000
17 260000 305 41400 357000 155 33500 277000 322 191000
18 266000 279 42300 363000 129 29200 275000 295 180000
19 273000 251 42900 366000 103 21400 267000 295 184000
20 280000 223 29100 366000 98 19700 265000 269 170000
 
21 286000 191 34800 364000 118 29600 261000 229 152000
22 290000 192 53600 356000 141 37800 255000 241 158000
23 294000 207 67200 345000 134 38300 249000 261 167000
24 299000 179 51500 333000 118 34100 247000 237 159000
25 305000 151 41900 319000 127 37800 248000 213 150000
 
26 312000 154 43800 305000 138 40600 251000 222 160000
27 317000 187 52900 291000 123 39700 253000 233 177000
28 321000 175 50200 277000 124 41600 255000 211 165000
29 324000 161 46300 265000 137 42600 248000 172 135000
30 326000 146 44400 257000 146 44400 242000 168 127000
 
31 --- --- --- 254000 147 44000 --- --- ---
 
JULY AUGUST SEPTEMBER
1 236000 152 109000 95300 95 20500 58200 68 11800
2 231000 156 106000 83400 94 19500 49600 76 12300
3 228000 145 95900 74400 99 23100 47600 65 9910
4 226000 143 91100 76000 92 22200 49000 67 10300
5 225000 139 87000 82800 79 17900 51900 77 10400
 
6 224000 127 78300 83900 92 16200 52600 68 9870
7 223000 134 83000 86800 101 18000 50900 73 10600
8 218000 148 91400 82400 101 21800 53500 75 10100
9 192000 153 92700 79800 102 21800 50400 85 12200
10 167000 151 85200 78800 96 20000 51600 86 13000
 
11 166000 134 62700 76900 97 20200 56600 91 14500
12 164000 137 62700 72700 97 18600 66900 101 13900
13 135000 152 70500 70800 91 17400 72700 114 16500
14 107000 137 63700 57400 99 14100 72600 110 18500
15 88000 130 65400 42800 91 12400 72200 125 22000
 
16 76800 117 61300 42100 85 13100 65500 110 20200
17 73900 121 65900 43000 77 12800 57700 102 19500
18 76200 99 55900 48700 81 14200 51900 99 21100
19 73700 97 56900 51200 74 12800 48200 111 22200
20 77300 104 60300 52800 55 10600 47000 117 20300
 
21 81700 96 53900 56600 62 11200 69400 113 20500
22 80900 93 51300 52900 72 12700 72400 112 21800
23 75500 88 48100 63600 83 15500 73700 108 17100
24 87300 79 40800 95200 112 24100 68600 124 18200
25 91600 79 32000 73500 109 25400 68800 127 20900
 
26 94700 93 30400 63300 90 18500 59900 100 19500
27 101000 92 24300 61600 86 14600 63000 102 21200
28 102000 96 25100 55700 81 13100 68300 95 15700
29 90000 100 24200 66000 80 11200 65900 105 17000
30 95700 95 18400 62900 84 11100 63200 86 13600
 
31 98100 98 21700 61500 82 13000 --- --- ---
e Estimated


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data