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USGS Daily Statistics for Kansas

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Historic (pre-2007) gage-height data may contain erroneous values, such as pressure sensors encased in ice, even if they are flagged as approved. These data are made available to the public, but data users are cautioned to carefully screen the data and contact the USGS Kansas Water Science Center if they have questions or concerns about specific values.

The statistics generated from this site are based on approved daily-mean data and may not match those published by the USGS in official publications. The user is responsible for assessment and use of statistics from this site. For more details on why the statistics may not match, click here.

USGS 07143665 L ARKANSAS R AT ALTA MILLS, KS


Harvey County, Kansas
Hydrologic Unit Code 11030012
Latitude  38°06'44", Longitude  97°35'30" NAD27
Drainage area 736  square miles
Contributing drainage area 681  square miles
Gage datum 1,392.04 feet above NAVD88
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00060, Discharge, cubic feet per second,
Day of
month		 Mean of daily mean values for each day for water year of record in, ft3/s   (Calculation Period 1973-10-01 -> 2025-09-30)

Calculation period restricted by USGS staff due to special conditions at/near site
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1 26 136 121 424 306 456 181 193 176 194 367 42
2 24 113 151 277 226 414 224 204 209 162 549 45
3 22 105 231 183 156 305 406 158 208 200 418 43
4 20 102 311 201 126 251 421 235 177 231 266 70
5 19 116 364 265 90 212 400 246 130 173 183 52
6 19 119 286 258 95 213 367 231 105 113 102 42
7 19 108 175 203 181 212 346 231 63 59 70 34
8 24 82 116 219 442 204 362 188 47 84 78 30
9 29 46 95 199 629 293 320 132 42 274 117 28
10 27 32 88 136 620 396 242 128 55 415 149 26
11 25 46 115 136 479 475 156 181 43 547 110 37
12 23 83 124 145 377 454 125 201 67 600 57 58
13 21 88 108 98 367 406 89 210 100 500 41 103
14 21 62 98 94 362 320 247 252 101 343 38 169
15 20 47 95 184 280 257 335 180 95 208 33 190
16 21 34 116 210 216 275 266 129 62 161 39 122
17 30 33 185 162 267 314 249 115 42 143 60 65
18 48 62 281 103 217 333 311 106 76 109 84 45
19 59 83 399 84 261 397 334 138 140 74 86 33
20 68 78 370 158 295 471 275 180 127 55 79 29
21 73 67 278 272 432 466 247 149 94 44 86 33
22 65 78 304 252 569 538 251 90 96 43 97 30
23 45 134 405 151 553 611 320 184 106 47 84 38
24 35 228 577 103 625 643 300 259 117 31 41 75
25 29 308 767 122 611 688 291 266 161 32 29 91
26 27 270 521 155 661 533 272 286 125 47 32 72
27 25 158 288 203 849 353 216 205 77 58 26 82
28 25 97 231 279 917 279 139 196 34 62 22 92
29 28 93 270 327 822 197 106 188 26 39 23 71
30 36   338 327 649 173 147 139 43 135 27 37
31 109   455   497   154 136   298   30