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Sn owca p Coal Compa ny, I nc. SQ-50 U.S. DEPARTMENT OF THE INTERIOR - U .S. GEOLOGICAL SURVEY - WATER RESOURCES ST ATION NUMBER 09095500 COL ORADO RIVER NEAR CAMEO, CO. SOURCE AGENCY USGS STATE O8 COUNTY 077 LATITUDE 391 421 LONGIT UDE 1081 556 NAD27 DRAINAGE AREA 8050 CONTRIBUTING DRAINAGE AREA 8050-00` DA TUM 9813.73 NGVD29 Date Processed: 2007 -01-26 08:11 By spanders Lowes[ aging statu s in period is APPROVED • OD #1 Di scharge, Cub ic feet per second WATER YEAR OCTOHER 2005 TO SEPTEMBER 2006 DAZLY MEAN VALUES DAY OCT NOV DEC JAN FEH MAR APR MAY JUN NL AUG SEP 1 3050 2700 2310 2050 1710 2330 2290 6200 8940 3950 2950 2630 2 2690 2610 2290 2060 1680 2440 2400 6300 9330 3990 3150 2560 3 2570 2550 2540 1970 1690 2130 2370 6730 9910 e4030 2910 2500 4 2830 2560 2390 2020 1620 2170 2370 7200 10200 e4050 2660 2510 5 2830 2580 e2070 1860 1620 2100 2620 7580 10500 e4070 2510 2450 6 2790 2580 e1710 1790 1630 2050 3090 7580 10900 3970 2600 2510 7 2620 2520 e1560 1660 1560 2150 3190 7120 11300 4170 2600 2480 8 2510 2510 e1590 1700 1500 2270 3030 6910 11700 4020 2580 2530 9 2800 2490 e1480 1770 1550 2230 3070 6760 12600 9910 2530 2620 10 2670 2280 e1360 1660 1560 2140 3320 6610 11800 9980 2420 2720 11 2750 2190 e1350 1540 1460 2010 3740 6230 10900 5090 2490 2760 12 2670 2380 e1500 1650 1380 1920 3970 5980 9710 4940 2540 2720 13 2650 2930 e1700 1730 1490 1950 4110 6180 9080 9620 2660 2660 14 2600 2940 e1750 1590 1610 1880 4690 7060 8320 4340 2690 2650 15 2550 2540 e1750 1680 1640 1810 5620 8270 8220 3970 2620 2790 16 2480 2310 e1500 1710 1680 1870 6070 9310 7960 3570 2610 2930 17 2470 2260 e1430 1660 1730 1820 5630 10200 6490 3210 2610 2960 18 2940 2160 e1990 1600 1630 1880 5760 10700 6160 3050 2560 2870 19 2560 2180 e1750 1760 1700 1910 5650 11200 6260 2980 2550 2800 20 2800 2150 e2030 1790 1690 1900 5220 11800 6030 2940 2630 2710 21 2830 2320 e2190 1600 1660 2100 4990 12900 6010 2860 2650 e2790 22 2770 2290 e2060 1480 1620 1850 4920 19400 5850 2900 2640 e3370 23 2630 2300 e1990 1480 1610 1810 5380 16400 5480 2780 2620 e3520 24 2560 2320 e2030 1390 1620 1800 6300 16200 5220 2640 2580 e3250 25 2530 2290 e1920 1370 1700 1830 6630 14800 9990 2520 2600 e2720 26 • 2540 2270 e1880 1610 1700 1910 6150 19700 4750 2600 2680 2990 27 2500 2320 e1990 1660 1700 2060 6020 19800 9510 2740 2920 2950 28 2530 2300 2000 1650 1820 2040 6500 13900 9210 2720 3050 2430 29 2650 2290 1940 1700 --- 2180 6710 12100 9090 2590 2910 2380 30 2810 2040 1940 1720 --- 2920 6290 10200 3930 2530 2790 2900 31 2840 --- 1910 1690 --- 2340 --- 9150 --- 2580 2690 --- TOTAL 82520 71060 57350 52600 45560 63300 138100 305470 234350 109810 83000 81160 MEAN 2662 2369 1850 1697 1627 2042 4603 9854 7812 3542 2677 2705 MAX 3050 2700 2540 2060 1820 2440 6710 16400 12600 5090 3150 3520 MIN 2940 2090 1350 1370 1380 1800 2290 5980 3930 2520 2920 2380 AC-FT 163700 140900 113800 104300 90370 1 25600 273900 605900 464800 217800 164600 161000 STATIST ICS OF MONTHLY MEAN DATA FOR WATER YEARS 1934 - 2006, BY WATER YEAR (WY) MEAN 2154 1947 1692 1584 1588 1798 3159 8980 12130 5674 2827 2221 MAX 3732 3253 3002 2621 2775 3365 8615 20290 25830 17430 6571 4271 (WY) 1985 1985 1985 1985 1986 1986 1962 1989 1984 1957 1989 1989 MIN 1084 1038 1004 940 991 1020 1723 2536 2606 1515 1332 1293 (WY) 1935 1935 1935 1964 1935 1935 2003 1977 2002 1934 1940 1934 SUMMARY STATISTICS FOR 2005 CAL ENDAR YEAR F OR 2006 WATER YEAR WATER YEARS 1934 - 2006 ANNUAL TOTAL 1334790 1324280 ANNUAL MEAN 3657 3628 3818 HIGHEST ANNUA L MEAN 7605 1989 LOWEST ANNUAL MEAN 1751 2002 HIGHEST DAILY MEAN 16800 May 25 16400 May 23 38000 May 26 1984 LOWEST DAILY MEAN 1240 Feb 11 1350 Dec 11 700 Dec 29 1939 ANNUAL SEVEN- DAY MINIMUM 1280 Feb 28 1500 Feb 7 852 Dec 29 1939 MAXIMUM PEAK FLOW 17700 May 23 39300 May 26 1984 MAXIMUM PEAK HTAGE 10. 19 May 23 14. 36 May 26 1984 ANNUAL RUNOFF (AC-FT) 2698000 2627000 2766000 10 PERC ENT EXCEEDS 9950 7150 9260 50 PERC ENT EXCEEDS 2560 2560 2140 90 PERCENT EXCEEDS 1390 1660 1360 • e Es timdtEd 06AHR 02J07