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USGS Daily Statistics for Georgia

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The daily maximum and minimum water level values for groundwater wells after September 30, 2023 are no longer being displayed on NWISWeb. However, these values can be determined using the instantaneous values that are available through the Time-Series: Current/Historical Observations option in the available data dropdown box for the station.


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 02206500 YELLOW RIVER NEAR SNELLVILLE, GA


Gwinnett County, Georgia
Hydrologic Unit Code 03070103
Latitude  33°51'11", Longitude  84°04'42" NAD83
Drainage area 136  square miles
Contributing drainage area 136  square miles
Gage datum 801.04 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 1942-10-01 -> 2024-09-30)

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
1 212 249 332 349 269 203 173 175 126 165 112 175
2 218 242 313 254 213 186 132 176 104 152 201 166
3 307 312 379 272 273 140 149 157 81 90 142 139
4 361 418 419 302 378 161 153 121 80 212 108 184
5 308 338 351 334 329 143 121 106 116 288 127 174
6 294 319 368 360 257 128 128 93 85 138 119 174
7 299 450 451 341 322 140 128 100 76 84 128 155
8 286 372 425 262 210 151 121 118 108 95 178 172
9 329 347 401 314 193 169 161 99 90 88 142 224
10 307 366 306 237 191 141 177 100 70 91 124 225
11 258 353 297 214 177 129 146 98 76 232 183 194
12 322 285 348 291 183 157 138 87 71 138 216 220
13 222 352 382 300 177 122 124 103 61 101 205 236
14 196 361 309 254 156 147 164 124 111 101 124 212
15 224 278 312 255 154 153 146 109 108 89 146 223
16 268 323 374 304 152 132 177 103 88 90 139 185
17 234 390 522 230 149 150 172 147 185 91 119 225
18 237 354 392 241 136 118 129 123 195 75 114 205
19 314 372 344 396 155 125 122 103 105 101 121 192
20 403 372 406 330 153 152 161 134 92 112 113 180
21 322 405 349 216 141 185 176 141 121 88 121 268
22 248 419 290 213 156 176 177 161 134 84 228 245
23 296 346 343 255 172 166 147 157 102 96 195 191
24 355 275 318 264 143 125 150 143 100 90 190 208
25 386 359 341 251 132 146 159 125 154 154 229 217
26 305 344 377 236 132 146 129 143 189 129 245 198
27 335 278 368 312 156 218 119 146 128 112 241 181
28 342 323 295 312 154 217 108 130 125 86 227 264
29 250 218 362 276 164 178 101 96 125 100 230 306
30 255   351 360 171 164 95 100 101 115 193 260
31 298   332   184   127 161   103   219