DWR_2669027

• Title: STREAM FLOW DATA FOR COLORADO
• Year: 1991
• Document Type - Publications and Reports: Streamflow Report

20

PLATTE RIVER BASIN

06726000 SOUTH BOULDER CREEK BELOW GROSS RESERVOIR NEAR COAL CREEK, CO

LOCATION.--Lat 39°56'55", long 105°21'30", SW¼ 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 with satellite telemetry at 25' Parshall flume. Station is owned and maintained by
Denver Water Board personnel.

REMARKS.--Record is complete and reliable except for the following periods: Dec.24-27, 1990, when clock stopped and DCP
had transmission difficulties. The stage-discharge relationship was affected by ice Dec.14-15, 19-20, 1990.
Records developed by Fred H. Renner.

RATING TABLE.--BOCBGRCO02 USED FROM 01-OCT-1990 TO 30-SEP-1991

DISCHARGE, IN CFS, WATER YEAR OCTOBER 1990 TO SEPTEMBER 1991
MEAN VALUES

DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP

1 104 35 5.6 2.8 77 90 95 155 413 517 136 113
2 112 15 5.6 2.7 87 90 111 170 417 465 78 113
3 112 15 5.6 2.8 87 90 120 169 309 443 50 52
4 144 15 4.6 2.8 87 90 119 168 265 436 50 16
5 164 15 4.1 2.8 87 93 155 168 286 420 50 16
6 164 15 3.2 2.8 99 97 176 168 346 445 50 16
7 168 18 2.8 2.6 106 97 175 125 384 456 50 16
8 170 19 2.8 2.7 110 96 208 102 396 453 50 16
9 170 19 2.8 2.6 112 96 207 102 398 453 97 16
10 170 19 2.8 2.4 112 96 199 102 402 452 145 15
11 247 19 2.8 2.4 112 96 162 102 403 423 158 18
12 294 19 2.8 2.3 112 97 145 103 351 406 158 18
13 294 19 2.8 2.4 112 98 144 183 324 405 158 18
14 294 19 2.2 2.4 112 98 144 257 326 404 158 18
15 258 19 2.0 2.4 112 98 144 306 327 387 148 18
16 241 19 2.1 2.4 112 98 143 323 327 375 142 19
17 241 19 2.1 2.4 112 98 119 340 327 374 141 19
18 239 19 2.0 2.4 112 98 105 356 328 374 141 19
19 239 16 2.0 3.8 112 98 104 367 378 374 141 21
20 239 8.4 2.4 5.0 112 98 104 398 403 373 141 22
21 239 5.0 2.4 5.1 112 98 104 378 478 372 141 22
22 239 5.0 2.8 12 98 98 104 375 524 373 141 22
23 201 5.0 2.8 18 90 98 120 387 525 371 122 34
24 157 5.0 2.4 14 90 98 130 389 524 370 112 53
25 146 5.0 2.4 5.0 90 97 130 391 498 369 112 73
26 146 5.0 2.8 4.7 91 97 130 393 463 282 112 73
27 146 5.0 3.0 4.6 91 98 130 396 451 234 112 84
28 146 5.6 3.0 4.6 90 98 129 400 482 234 112 92
29 113 5.6 3.0 5.6 --- 97 129 403 530 169 112 92
30 83 5.6 3.6 13 --- 95 129 406 546 136 112 91
31 76 --- 3.2 49 --- 95 --- 408 --- 136 113 ---

TOTAL 5756 413.2 94.5 190.5 2836 2981 4114 8490 12131 11481 3543 1215
MEAN 186 13.8 3.05 6.15 101 96.2 137 274 404 370 114 40.5
AC-FT 11420 820 187 378 5630 5910 8160 16840 24060 22770 7030 2410
MAX 294 35 5.6 49 112 98 208 408 546 517 158 113
MIN 76 5.0 2.0 2.3 77 90 95 102 265 136 50 15

CAL YR 1990 TOTAL 50217.7 MEAN 138 MAX 573 MIN 2.0 AC-FT 99610
WTR YR 1991 TOTAL 53245.2 MEAN 146 MAX 546 MIN 2.0 AC-FT 105600

MAX DISCH 549 CFS AT 1200 29-JUN-1991 GH 3.00 FT. SHIFT 0.00 FT. MAX GH 3.00 FT. AT 1200
29-JUN-1991