PROJ00079

• Contract/PO #: FS0012X
• Contractor Name: New Castle, Town of
• Contract Type: Loan
• Water District: 0
• County: Garfield
• Loan Projects - Doc Type: Feasibility Study

COLORADO RIVER BASIN 187
09086970 EAST ELK CREEK ABOVE BOILER CREEK. MEAR NEW CASTLE, CO
LOCATION.--Lat 39040' 05-, long 107031' 28-, Garfleld County, HydrololJlc Unlt 14010005. on left bank 45 ft downstream
from Forest Servlce footbridlJe and 6 mlles northeast of New Ca.tle.
DRAINAGE AREA.--23.4 mil.
PERIOD OF RECORD.--October 1990 to current year.
GAGE.--Water-stage recorder. Elevatlon of gage 18 6.800 ft above sea level. from topolJraphic map.
REMARKS.--No estlmated dally discharges. Records IJood. Several measurements of speciflc conductance and water
temperature were obtained and are published elsewhere in this report.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1992 TO SEPTEMBER 1993
DAILY MEAN VALUES
DAY OCT NOV DEe JAN FEB MAR APR MAY .roN JUL AUG SEP
J. 8.6 6.6 5.6 4.7 4.4 4.2 9.3 2S 408 266 30 14
2 8.2 6.3 5.6 4.7 4.4 4.4 9.2 25 331 234 29 13
3 7.8 6.1 5.6 4.6 4.4 4.4 8.9 28 332 205 27 13
4 7.8 5.8 5.6 4.6 4.4 4.4 8.5 39 343 161 26 13
5 7.7 6.3 5.6 4.7 4.4 4.4 8.8 39 319 130 26 12
6 7.3 6.5 5.6 4.7 4.4 4.4 9.4 33 353 108 25 12
7 7.0 6.6 5.4 4.5 4.4 4.4 9.6 28 347 101 24 12
8 6.4 6.6 5.3 4.3 4.4 4.6 9.3 25 288 101 25 11
9 6.6 6.6 5.3 4.4 4.4 4.7 8.9 23 233 101 25 11
10 6.6 6.6 5.3 4.4 4.4 4.7 8.9 21 219 98 25 11
11 6.6 6.2 5.3 3.3 4.4 4.9 9.0 25 267 96 26 10
12 6.8 5.7 5.3 2.7 4.4 5.3 8.9 38 361 93 22 10
13 6.8 6.2 5.3 4.7 4.4 5.3 9.2 62 378 84 20 12
14 6.6 5.9 4.7 5.2 4.4 5.3 9.2 85 440 78 20 11
15 6.6 5.9 5.0 5.3 4.4 5.3 8.8 112 592 73 18 10
16 6.6 5.9 5.0 4.8 4.4 5.3 8.5 166 527 68 18 10
17 6.6 5.9 5.0 4.7 4.4 5.1 8.4 192 496 62 17 10
18 6.6 6.1 4.9 4.6 4.4 5.3 8.2 191 384 59 17 10
19 6.6 6.0 4.7 4.4 4.4 5.6 8.0 193 299 54 16 10
20 6.6 5.9 4.7 4.4 4.4 5.6 8.0 241 336 51 16 9.9
21 6.6 5.5 4.7 4.4 4.4 5.8 8.1 265 348 48 17 9.6
22 6.6 5.3 4.7 4.4 4.4 6.3 9.2 279 406 46 17 9.5
23 6.6 6.1 4.7 4.4 4.4 6.6 12 242 395 43 16 9.2
24 6.4 4.8 4.7 4.4 4.2 7.7 12 227 321 44 15 9.2
25 6.6 5.4 4.7 4.4 4.7 9.0 13 246 310 40 15 9.2
26 6.9 5.7 4.7 4.4 4.7 10 13 303 299 38 16 9.2
27 6.7 5.7 4.7 4.4 4.5 11 16 288 342 . 36 14 9.2
28 . 6.4 5.6 4.7 4..4 4.3 11 23 300 320 35 i4 9.2
29 6.9 5.6 4.7 4.4 10 26 295 325 34 14 9.2
30 6.9 5.6 4.7 4.4 10 29 305 315 33 14 8.9
31 7.2 4.7 4.4 9.7 331 32 14
TOTAL 214.2 179.0 156.5 138.1 123.6 194.7 338.3 4672 10634 2652 618 317.3
MEAN 6.91 5.97 5.05 4.45 4.41 6.28 11.3 151 354 85.5' 19.9 10.6
MAX 8.6 6.6 5.6 5.3 4.7 11 29 331 592 266 30 14
MIN 6.4 4.8 4.7 2.7 4.2 4.2 8.0 21 219 32 14 8.9
AC-FT 425 355 310 274 245 386 671 9270 21090 5260 1230 629
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1991 - 1993. BY WATER 'tEAR (NY)
MEAN 6.65 5.55 5.05 4.66 4.40 5.44 14.2 139 221 45.8 15.5 11.0
MAX 7.15 5.97 5.49 5.10 4.67 6.28 21.6 157 354 85.5 19.9 13.7
(NY) 1992 1993 1992 1992 1992 1993 1992 1992 1993 1993 1993 1991
MIN 5.89 5.26 4.61 4.42 4.11 4.58 9.62 109 66.2 17.8 9.58 8.79
(NY) 1991 1991 1991 1991 1991 1991 1991 1991 1992 1992 1992 1992
SUMMARY STATISTICS FOR 1992 CALENDAR YEAR FOR 1993 WATER YEAR WATER YEARS 1991 - 1993
ANNUAL TOTAL 9633.8 20237.7
ANNUAL MEAN 26.3 55.4 39.9
HIGHEST ANNUAL MEAN 55.4 1993
LOWEST ANNUAL MEAN 26.3 1992
HIGHEST DAILY MEAN 236 May 21 592 Jun 15 592 Jun 15 1993
LOWEST DAILY MEAN a4.4 Feb 15 2.7 Jan 12 2.7 Jan 12 1993
ANNUAL SEVEN-DAY MINIMUM 4.5 Feb 24 4.0 Jan 6 4.0 Feb 19 1991
INSTANTANEOUS PEAK FLOW 741 Jun 15 741 Jun 15 1993
INSTANTANEOUS PEAK STAGE 5.84 Jun 15 5.84 Jun 15 1993
ANNUAL RUNOFF (AC-F'l') 19110 40140 28910
10 ~ERCENT EXCEEDS 97 265 126
50 PERCENT EXCEEDS 7.8 8.8 8.2
90 PERCENT EXCEEDS 4.8 4.4 4.4
a-Also occurred Feb 16-19, Feb 26 to Mar 1, Mar 24, 25.