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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 26 138 123 432 312 463 171 195 137 194 375 43
2 24 113 154 283 230 421 218 206 177 162 560 46
3 22 105 235 187 159 309 408 160 208 200 426 44
4 20 103 317 205 129 253 426 239 177 231 269 72
5 19 118 371 270 92 215 405 250 130 173 185 53
6 19 121 291 263 97 216 372 235 105 113 103 42
7 20 110 179 207 184 215 351 235 63 59 71 35
8 25 83 118 223 451 205 368 191 47 84 80 31
9 30 47 97 202 641 296 325 134 42 274 112 28
10 27 33 90 138 632 402 246 130 55 415 137 27
11 25 47 117 138 488 484 158 184 43 547 103 38
12 23 85 126 148 385 463 127 185 67 600 55 60
13 22 90 110 100 374 414 90 178 100 500 41 105
14 21 63 100 96 369 325 252 236 101 343 38 172
15 20 48 97 187 285 253 341 176 95 208 33 194
16 22 34 118 214 220 273 271 128 62 161 40 125
17 30 33 189 165 272 307 254 114 42 143 60 66
18 49 63 287 105 221 277 317 106 76 109 82 46
19 60 84 407 86 267 284 340 139 140 74 68 34
20 70 79 377 162 301 365 280 183 127 55 60 29
21 74 68 283 277 440 418 252 151 94 44 79 33
22 66 79 309 257 581 528 246 91 96 43 96 30
23 46 137 413 154 564 609 267 187 106 47 84 39
24 36 232 588 105 637 616 253 264 117 31 41 76
25 29 314 782 124 623 649 281 271 161 32 29 93
26 27 275 531 158 674 485 248 291 125 47 32 73
27 25 161 293 207 866 332 170 209 77 58 26 84
28 25 99 236 284 935 273 126 200 34 63 22 94
29 28 93 276 333 836 194 103 191 26 40 23 72
30 37   345 334 656 167 147 140 43 138 27 38
31 112   464   502   155 135   304   31