Station list
Available data
ILLINOIS RIVER BASIN
05547350 GRASS LK OUTLET NEAR LOTUS WOODS, IL
LOCATION.--Lat 42°25'33", long 88°09'53", in SW1/4SW1/4 sec.18, T.46N., R.9E., Lake County, Hydrologic Unit 07120006, on right bank of downstream side Grass Lake Road bridge, and at mile 108.5.
DRAINAGE AREA.--919 mi2.
PERIOD OF RECORD.--
SUSPENDED-SEDIMENT DISCHARGE: Dec. 1997 to Sept. 1998.
REMARKS.--Suspended-sediment samples were collected twice weekly with more frequent samples
collected during high runoff periods.
EXTREMES FOR PERIOD OF RECORD.--
SEDIMENT CONCENTRATION: Maximum daily, 207 mg/L, Jan. 7, 1998; minimum daily, 3 mg/L, Jan. 20-24, 1998.
SEDIMENT LOAD: Maximum daily, 540 tons, Jan. 6, 1998; minimum daily, 5.2 tons, Jan. 21, 1998.
SEDIMENT DISCHARGE, SUSPENDED (TONS/DAY), WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998
|
---|
| | 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 | --- | --- | --- | --- | --- | --- | e560 | 61 | 93
|
2 | --- | --- | --- | --- | --- | --- | e610 | 87 | 144
|
3 | --- | --- | --- | --- | --- | --- | e620 | 115 | 192
|
4 | --- | --- | --- | --- | --- | --- | e630 | 109 | 185
|
5 | --- | --- | --- | --- | --- | --- | e640 | 99 | 172
|
|
6 | --- | --- | --- | --- | --- | --- | e610 | 91 | 150
|
7 | --- | --- | --- | --- | --- | --- | e600 | 83 | 134
|
8 | --- | --- | --- | --- | --- | --- | e590 | 76 | 121
|
9 | --- | --- | --- | --- | --- | --- | e570 | 69 | 106
|
10 | --- | --- | --- | --- | --- | --- | e520 | 63 | 89
|
|
11 | --- | --- | --- | --- | --- | --- | e500 | 59 | 80
|
12 | --- | --- | --- | --- | --- | --- | e500 | 63 | 85
|
13 | --- | --- | --- | --- | --- | --- | e500 | 68 | 92
|
14 | --- | --- | --- | --- | --- | --- | e500 | 73 | 99
|
15 | --- | --- | --- | --- | --- | --- | e490 | 79 | 105
|
|
16 | --- | --- | --- | --- | --- | --- | e500 | 85 | 115
|
17 | --- | --- | --- | --- | --- | --- | e500 | 92 | 124
|
18 | --- | --- | --- | --- | --- | --- | e500 | 100 | 134
|
19 | --- | --- | --- | --- | --- | --- | e490 | 107 | 142
|
20 | --- | --- | --- | --- | --- | --- | e490 | 116 | 153
|
|
21 | --- | --- | --- | --- | --- | --- | e510 | 125 | 172
|
22 | --- | --- | --- | --- | --- | --- | e500 | 135 | 182
|
23 | --- | --- | --- | --- | --- | --- | e500 | 144 | 195
|
24 | --- | --- | --- | --- | --- | --- | e500 | 138 | 186
|
25 | --- | --- | --- | --- | --- | --- | e490 | 128 | 169
|
|
26 | --- | --- | --- | --- | --- | --- | e500 | 118 | 160
|
27 | --- | --- | --- | --- | --- | --- | e480 | 110 | 142
|
28 | --- | --- | --- | --- | --- | --- | e400 | 104 | 112
|
29 | --- | --- | --- | --- | --- | --- | e530 | 140 | 200
|
30 | --- | --- | --- | --- | --- | --- | e450 | 130 | 158
|
|
31 | --- | --- | --- | --- | --- | --- | e380 | 113 | 116
|
|
TOTAL | --- | --- | --- | --- | --- | --- | 16160 | --- | 4307
|
|
| JANUARY | FEBRUARY | MARCH
|
|
|
|
|
1 | e400 | 104 | 112 | e620 | 9 | 14 | e1030 | 68 | 189
|
2 | e540 | 116 | 170 | e700 | 13 | 25 | e1030 | 62 | 172
|
3 | e600 | 134 | 216 | e980 | 20 | 53 | e1030 | 57 | 158
|
4 | e700 | 153 | 290 | e1050 | 29 | 81 | e960 | 46 | 119
|
5 | e900 | 176 | 428 | e970 | 28 | 74 | e900 | 10 | 25
|
|
6 | e990 | 202 | 540 | e960 | 27 | 69 | e870 | 9 | 20
|
7 | e860 | 207 | 480 | e940 | 25 | 63 | e820 | 8 | 18
|
8 | e1200 | 144 | 468 | e900 | 24 | 57 | e920 | 10 | 24
|
9 | e1100 | 98 | 290 | e860 | 22 | 52 | e1100 | 11 | 33
|
10 | e800 | 66 | 143 | e760 | 29 | 59 | e1000 | 9 | 25
|
|
11 | e730 | 45 | 88 | e930 | 97 | 244 | e720 | 10 | 19
|
12 | e690 | 30 | 56 | e1300 | 106 | 374 | e690 | 28 | 52
|
13 | e670 | 20 | 37 | e1550 | 103 | 432 | e750 | 72 | 145
|
14 | e660 | 14 | 25 | e1450 | 100 | 393 | e850 | 48 | 111
|
15 | e660 | 9 | 17 | e1350 | 97 | 355 | e900 | 26 | 64
|
|
16 | e660 | 6 | 11 | e1350 | 94 | 344 | e820 | 21 | 47
|
17 | e670 | 5 | 9.6 | e1380 | 92 | 342 | e680 | 19 | 35
|
18 | e670 | 5 | 8.3 | e1400 | 89 | 338 | e840 | 25 | 57
|
19 | e660 | 4 | 7.1 | e1350 | 89 | 324 | e1100 | 33 | 98
|
20 | e650 | 3 | 6.1 | e1300 | 89 | 312 | e1220 | 34 | 113
|
|
21 | e630 | 3 | 5.2 | e1200 | 89 | 287 | e1150 | 34 | 104
|
22 | e620 | 3 | 5.3 | e1180 | 89 | 282 | e1080 | 36 | 104
|
23 | e610 | 3 | 5.4 | e1150 | 88 | 274 | e1050 | 49 | 140
|
24 | e600 | 3 | 5.6 | e1150 | 88 | 274 | e1050 | 70 | 198
|
25 | e580 | 4 | 5.7 | e1100 | 88 | 262 | e1030 | 91 | 254
|
|
26 | e570 | 4 | 5.9 | e1050 | 88 | 248 | e900 | 93 | 227
|
27 | e560 | 4 | 6.1 | e950 | 82 | 209 | e740 | 94 | 187
|
28 | e550 | 5 | 6.8 | e980 | 74 | 197 | e720 | 89 | 173
|
29 | e560 | 5 | 8.0 | --- | --- | --- | e720 | 68 | 132
|
30 | e580 | 6 | 9.5 | --- | --- | --- | e730 | 53 | 105
|
|
31 | e590 | 7 | 11 | --- | --- | --- | e1000 | 51 | 137
|
|
TOTAL | 21260 | --- | 3476.6 | 30860 | --- | 6038 | 28400 | --- | 3285
|
|
| APRIL | MAY | JUNE
|
|
|
|
|
1 | e1300 | 49 | 173 | e930 | 57 | 144 | e620 | 86 | 144
|
2 | e1400 | 49 | 185 | e940 | 33 | 83 | e620 | 79 | 132
|
3 | e1370 | 56 | 209 | e930 | 28 | 69 | e580 | 74 | 116
|
4 | e1350 | 67 | 245 | e880 | 23 | 56 | e520 | 70 | 98
|
5 | e1300 | 80 | 281 | e800 | 21 | 45 | e410 | 69 | 76
|
|
6 | e1250 | 92 | 312 | e780 | 22 | 47 | e380 | 82 | 84
|
7 | e1200 | 85 | 274 | e1000 | 25 | 67 | e420 | 100 | 113
|
8 | e1180 | 74 | 236 | e1400 | 32 | 119 | e410 | 118 | 131
|
9 | e1400 | 75 | 283 | e1500 | 55 | 223 | e420 | 122 | 139
|
10 | e1600 | 62 | 268 | e1450 | 51 | 199 | e430 | 125 | 145
|
|
11 | e1600 | 53 | 229 | e1320 | 46 | 165 | e450 | 127 | 154
|
12 | e1200 | 46 | 148 | e1250 | 57 | 193 | e550 | 129 | 192
|
13 | e1100 | 41 | 122 | e1140 | 72 | 223 | e660 | 135 | 241
|
14 | e1200 | 45 | 146 | e1030 | 92 | 255 | e610 | 149 | 245
|
15 | e1300 | 48 | 168 | e920 | 112 | 277 | e590 | 164 | 261
|
|
16 | e1400 | 41 | 154 | e820 | 110 | 243 | e560 | 181 | 273
|
17 | e1520 | 33 | 137 | e700 | 105 | 198 | e490 | 156 | 206
|
18 | e1500 | 28 | 115 | e600 | 100 | 163 | e400 | 87 | 93
|
19 | e1380 | 27 | 100 | e540 | 97 | 142 | e520 | 109 | 153
|
20 | e1280 | 27 | 93 | e560 | 100 | 152 | e650 | 120 | 211
|
|
21 | e1320 | 37 | 132 | e660 | 105 | 186 | e540 | 78 | 114
|
22 | e1400 | 50 | 188 | e600 | 109 | 177 | e490 | 72 | 95
|
23 | e1400 | 47 | 180 | e520 | 114 | 160 | e400 | 70 | 75
|
24 | e1300 | 44 | 153 | e430 | 116 | 134 | e340 | 67 | 62
|
25 | e1200 | 40 | 131 | e470 | 118 | 149 | e360 | 66 | 64
|
|
26 | e1150 | 39 | 120 | e510 | 119 | 164 | e600 | 70 | 114
|
27 | e1170 | 37 | 118 | e520 | 121 | 170 | e760 | 75 | 154
|
28 | e1050 | 37 | 106 | e440 | 126 | 150 | e1000 | 85 | 230
|
29 | e970 | 47 | 122 | e530 | 150 | 215 | e1120 | 122 | 370
|
30 | e920 | 60 | 149 | e570 | 166 | 256 | e1080 | 115 | 336
|
|
31 | --- | --- | --- | e620 | 118 | 198 | --- | --- | ---
|
|
TOTAL | 38710 | --- | 5277 | 25360 | --- | 5022 | 16980 | --- | 4821
|
|
| JULY | AUGUST | SEPTEMBER
|
|
|
|
|
1 | e1000 | 72 | 195 | e250 | 69 | 46 | e360 | 65 | 64
|
2 | e860 | 74 | 172 | e235 | 75 | 48 | e360 | 65 | 63
|
3 | e700 | 75 | 142 | e230 | 77 | 48 | e280 | 58 | 44
|
4 | e760 | 75 | 155 | e270 | 78 | 57 | e270 | 50 | 36
|
5 | e730 | 72 | 142 | e500 | 80 | 108 | e290 | 44 | 34
|
|
6 | e680 | 69 | 126 | e1250 | 87 | 295 | e290 | 42 | 33
|
7 | e560 | 65 | 99 | e1200 | 135 | 438 | e340 | 41 | 38
|
8 | e590 | 62 | 99 | e1100 | 110 | 326 | e410 | 40 | 44
|
9 | e610 | 59 | 97 | e920 | 82 | 204 | e360 | 37 | 36
|
10 | e600 | 56 | 91 | e970 | 63 | 166 | e340 | 35 | 32
|
|
11 | e480 | 53 | 69 | e1000 | 60 | 162 | e250 | 33 | 22
|
12 | e450 | 51 | 62 | e960 | 59 | 153 | e235 | 31 | 20
|
13 | e430 | 48 | 56 | e960 | 58 | 150 | e250 | 30 | 20
|
14 | e390 | 46 | 48 | e980 | 56 | 148 | e290 | 29 | 23
|
15 | e350 | 44 | 41 | e940 | 54 | 137 | e440 | 34 | 40
|
|
16 | e340 | 57 | 52 | e860 | 53 | 122 | e520 | 38 | 54
|
17 | e330 | 133 | 118 | e750 | 55 | 110 | e470 | 34 | 44
|
18 | e320 | 126 | 109 | e620 | 57 | 95 | e430 | 40 | 46
|
19 | e310 | 108 | 90 | e520 | 60 | 84 | e350 | 48 | 46
|
20 | e300 | 96 | 77 | e410 | 62 | 69 | e330 | 57 | 51
|
|
21 | e320 | 106 | 92 | e270 | 66 | 48 | e300 | 57 | 47
|
22 | e370 | 123 | 123 | e320 | 71 | 61 | e300 | 57 | 46
|
23 | e390 | 124 | 131 | e320 | 75 | 65 | e280 | 56 | 43
|
24 | e410 | 73 | 81 | e320 | 77 | 66 | e260 | 56 | 39
|
25 | e400 | 63 | 68 | e470 | 62 | 79 | e260 | 56 | 39
|
|
26 | e360 | 59 | 58 | e610 | 55 | 91 | e250 | 55 | 37
|
27 | e290 | 56 | 44 | e380 | 61 | 63 | e260 | 56 | 39
|
28 | e240 | 56 | 36 | e390 | 63 | 66 | e260 | 56 | 40
|
29 | e240 | 56 | 36 | e370 | 64 | 64 | e260 | 56 | 40
|
30 | e250 | 57 | 38 | e350 | 64 | 61 | e260 | 52 | 36
|
|
31 | e260 | 62 | 44 | e350 | 65 | 61 | --- | --- | ---
|
|
TOTAL | 14320 | --- | 2791 | 19075 | --- | 3691 | 9555 | --- | 1196
|
e Estimated