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82 PLATTE RIVER BASIN 06729450 SOUTH BOULDER CREEK BELOW GROSS RESERVOIR NEAR COAL CREEK, CO (1985) LOCATION. - -Lat 39 °56119 ", long 105 020'55 ", SW1a sec. 21, T.1 S., R.71 W., Boulder County. Diverts flow from South Boulder Creek and transmountain diversions from Moffat Tunnel. DRAINAGE AREA.--N /A GAGE. -- Graphic water -stage recorder at 25' Parshall flume with supplemental outside staff. Station is owned and maintained by Denver Water Board personnel. RATING TABLE.-- BOCBGRC002 USED FROM 01 -OCT -1984 TO 30 -SEP -1985 DISCHARGE, IN CFS, WATER YEAR OCTOBER 1984 TO SEPTEMBER 1985 MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 125 74 90 6.6 95 98 118 211 481 334 215 264 2 125 79 90 8.7 98 98 118 197 481 334 215 205 3 125 83 90 5.0 98 98 118 189 481 344 215 172 4 125 83 90 5.0 98 98 118 189 481 349 215 127 5 125 84 90 5.0 98 98 118 189 481 349 260 106 6 125 83 90 5.0 98 98 118 294 467 361 289 164 7 125 83 90 9.6 98 98 118 366 461 369 289 201 8 125 83 90 14 92 98 118 366 461 387 289 201 9 139 83 90 14 89 98 123 395 461 397 289 201 10 148 83 90 14 89 98 137 410 423 262 289 201 11 148 83 34 14 89 98 141 410 402 313 289 201 12 132 83 16 14 89 98 141 410 402 421 289 201 13 122 83 16 14 89 104 141 342 437 421 289 201 14 122 83 16 14 89 107 141 303 458 421 289 201 15 122 76 16 14 89 107 141 303 475 329 289 201 16 122 72 16 14 89 107 148 273 486 278 289 201 17 132 72 16 14 89 107 211 256 486 278 289 201 18 137 72 16 11 89 109 251 256 486 278 289 201 19 137 72 16 7.8 89 109 294 256 486 278 289 201 20 137 72 12 7.8 72 109 322 256 486 253 276 201 21 137 72 11 7.8 89 109 322 256 486 238 264 201 22 80 72 11 7.8 89 109 322 256 486 238 264 201 23 50 72 11 7.8 89 109 322 256 486 238 264 201 24 49 72 11 11 89 109 249 285 486 267 264 166 25 74 72 11 13 89 109 215 306 458 308 264 146 26 89 72 6.6 13 89 109 215 306 418 322 264 146 27 89 72 4.6 13 89 109 215 310 359 322 264 146 28 89 83 4.6 24 93 115 213 327 334 287 264 146 29 80 90 4.6 72 - -- 118 213 306 334 267 264 146 30 74 90 4.6 95 - -- 118 213 256 334 256 264 146 31 74 - -- 4.6 95 - -- 118 - -- 413 - -- 215 264 - -- TOTAL 3483 2353 1158.6 570.9 2542 3267 5634 9148 13463 9714 8346 5497 MEAN 112 78.4 37.4 18.4 90.8 105 188 295 449 313 269 183 AC -FT 6910 4670 2300 1130 5040 6480 11180 18150 26700 19270 16550 10900 MAX 148 90 90 95 98 118 322 413 486 421 289 264 MIN 49 72 4.6 5.0 72 98 118 189 334 215 215 106 CAL YR 1984 TOTAL 58443.8 MEAN 160 MAX 573 MIN 2.8 AC -FT 115900 WTR YR 1985 TOTAL 65176.5 MEAN 179 MAX 486 MIN 4.6 AC -FT 129300 500 450 400 350 300 250 200 150 100 50 0 Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep