1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 02153200 BROAD RIVER NEAR BLACKSBURG, SC SOURCE AGENCY USGS STATE 45 COUNTY 021 LATITUDE 350726 LONGITUDE 0813517 NAD27 DRAINAGE AREA 1290* CONTRIBUTING DRAINAGE AREA DATUM 550 NGVD29 Date Processed: 2005-04-11 11:47 By mishealy APPROVED DD #12, , PUBLISHED Discharge, cubic feet per second WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 e1330 1670 1240 1720 3190 3090 2770 4470 2020 1520 1220 794 2 1250 1680 1420 1860 2790 2650 2730 4870 2050 1300 1180 899 3 1130 1440 1670 1640 4380 2480 2440 3930 1900 1160 875 907 4 1090 1480 1900 1480 16200 2310 2860 3130 1920 1510 832 1640 5 935 1450 1780 1380 11400 2660 2540 3130 2630 1400 1040 1200 6 758 1310 1740 1770 6210 2440 2070 3000 2690 1010 987 834 7 860 1020 1640 1810 4630 2560 2330 2790 2150 1100 905 716 8 983 1460 1490 9370 3950 10200 2620 3140 1900 1350 965 704 9 980 1340 1390 12200 3470 17100 3210 2800 1800 1260 1110 796 10 769 1160 1600 4710 3170 8960 3510 2740 1970 1170 1130 787 11 974 1170 1570 3590 e3100 5400 2840 2730 2200 1170 1030 804 12 926 1320 1240 2800 e3150 4320 2480 2600 1880 1160 1200 779 13 776 1380 1730 2570 e3150 3790 2100 2340 1860 791 1130 764 14 861 1630 1230 2580 e2800 3570 2620 2440 1680 955 980 672 15 1020 1600 1150 2780 e2790 3260 2550 2440 1340 1040 2370 597 16 987 1390 1290 7090 e2800 3040 2310 2440 1690 1110 2970 734 17 912 1130 1360 7010 e5000 3370 4430 2200 1730 1170 1920 779 18 1060 1230 1370 3980 e8000 3280 5730 1890 1680 1420 1690 761 19 908 1440 1340 3140 5980 4460 4750 2020 1480 1190 1250 740 20 784 1240 1420 3180 4590 3990 8750 2210 1720 831 1280 661 21 934 1130 1270 2850 4010 4540 5460 2020 1570 1060 1130 830 22 966 1960 1410 2440 3750 3920 4480 2180 1290 1070 1130 1040 23 944 1760 1830 4420 4090 3390 4220 2090 1700 934 1030 1250 24 1000 1410 2300 5050 4270 3180 3570 1920 1850 1310 882 626 25 1220 1450 4410 3810 3600 2970 3290 1960 1600 1540 982 704 26 2840 1410 2750 3140 3190 2890 2740 1740 1490 1330 943 765 27 8820 1380 2590 6700 3500 2910 2660 2180 1620 1530 927 961 28 3490 1350 2820 13000 3750 2850 3050 2450 1300 1920 884 863 29 2090 1280 2240 5910 --- 2650 2520 2670 1230 1450 876 846 30 1520 1400 2140 4250 --- 2370 2790 3050 1200 1250 804 1270 31 1490 --- 2260 3510 --- 2470 --- 2480 --- 1200 736 --- TOTAL 44607 42070 55590 131740 130910 127070 100420 82050 53140 38211 36388 25723 MEAN 1439 1402 1793 4250 4675 4099 3347 2647 1771 1233 1174 857 MAX 8820 1960 4410 13000 16200 17100 8750 4870 2690 1920 2970 1640 MIN 758 1020 1150 1380 2790 2310 2070 1740 1200 791 736 597 CFSM 1.12 1.09 1.39 3.29 3.62 3.18 2.59 2.05 1.37 0.96 0.91 0.66 IN. 1.29 1.21 1.60 3.80 3.78 3.66 2.90 2.37 1.53 1.10 1.05 0.74 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1998 - 1998, BY WATER YEAR (WY) MEAN 1439 1402 1793 4250 4675 4099 3347 2647 1771 1233 1174 857 MAX 1439 1402 1793 4250 4675 4099 3347 2647 1771 1233 1174 857 (WY) 1998 1998 1998 1998 1998 1998 1998 1998 1998 1998 1998 1998 MIN 1439 1402 1793 4250 4675 4099 3347 2647 1771 1233 1174 857 (WY) 1998 1998 1998 1998 1998 1998 1998 1998 1998 1998 1998 1998 SUMMARY STATISTICS FOR 1998 WATER YEAR ANNUAL TOTAL 867919 ANNUAL MEAN 2378 HIGHEST DAILY MEAN 17100 Mar 9 LOWEST DAILY MEAN 597 Sep 15 ANNUAL SEVEN-DAY MINIMUM 706 Sep 14 MAXIMUM PEAK FLOW 20200 Mar 9 MAXIMUM PEAK STAGE 13.72 Mar 9 ANNUAL RUNOFF (CFSM) 0.000 ANNUAL RUNOFF (INCHES) 0.00 10 PERCENT EXCEEDS 4290 50 PERCENT EXCEEDS 1740 90 PERCENT EXCEEDS 883 e Estimated 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 02153200 BROAD RIVER NEAR BLACKSBURG, SC SOURCE AGENCY USGS STATE 45 COUNTY 021 LATITUDE 350726 LONGITUDE 0813517 NAD27 DRAINAGE AREA 1290* CONTRIBUTING DRAINAGE AREA DATUM 550 NGVD29 Date Processed: 2005-04-11 11:47 By mishealy APPROVED DD #12, , PUBLISHED Discharge, cubic feet per second WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 1470 888 916 1100 e1730 1460 2300 3540 905 1000 654 506 2 1340 741 1000 1140 e4180 1670 3890 2470 1030 1060 640 465 3 963 990 1010 2960 3700 1960 3000 1780 1640 869 484 534 4 1110 1140 940 3460 2930 2040 2390 1580 1200 995 699 271 5 1110 970 1060 2230 2230 1860 2090 1600 1210 1120 455 575 6 1360 936 875 1940 2570 1930 2120 1760 1000 956 354 453 7 1470 1010 824 1760 1820 1670 2200 1940 840 1550 382 368 8 3150 903 942 1600 1750 1350 1980 1950 964 1410 666 603 9 2990 707 1040 1660 1840 1700 1870 1470 978 1400 551 686 10 1970 986 1260 1710 2030 1840 1910 1230 914 1150 404 606 11 1510 1160 1090 1510 1940 1770 1630 1410 918 1190 435 571 12 1270 1310 1130 1420 1830 1460 1430 1480 980 1030 413 560 13 1290 1250 1450 1300 1950 1560 1650 1300 994 1490 432 464 14 1340 1200 1510 1330 1570 1670 1630 1740 839 1350 311 394 15 1260 1230 1530 1610 1510 1480 1730 1820 877 1190 376 e344 16 1260 1230 1450 1720 1580 1760 1840 1370 1140 1130 459 e95 17 1260 1560 1240 1350 1650 1610 1890 1250 1720 1120 417 313 18 1260 1640 1050 1260 2060 1590 1410 1330 1340 1010 369 346 19 1210 1220 1100 2160 2540 1480 1300 1610 1080 825 357 198 20 e1000 1180 1060 2070 3820 1750 1500 1630 950 986 281 391 21 943 1350 976 1820 3350 2010 1390 1370 840 1000 313 199 22 760 1100 1270 1630 2570 1970 1430 1440 866 1070 570 565 23 772 830 1340 1930 2160 1810 1460 1270 920 918 580 586 24 874 813 1520 3760 2190 1790 1550 973 934 837 884 438 25 822 1080 2260 3240 1980 1740 1390 1060 1030 908 2010 310 26 744 1090 1660 2500 1900 1720 1070 1290 1870 900 1540 466 27 835 954 1450 2050 1730 1590 1410 1260 1420 901 1060 436 28 916 977 1180 2200 1630 1250 1670 1110 1370 830 771 1130 29 912 984 1940 1870 --- 1220 1850 1090 1060 778 775 1620 30 747 825 1180 1790 --- 1520 2250 1060 993 739 582 1280 31 925 --- 1400 e1700 --- 1460 --- 960 --- 465 407 --- TOTAL 38843 32254 38653 59780 62740 51690 55230 47143 32822 32177 18631 15773 MEAN 1253 1075 1247 1928 2241 1667 1841 1521 1094 1038 601 526 MAX 3150 1640 2260 3760 4180 2040 3890 3540 1870 1550 2010 1620 MIN 744 707 824 1100 1510 1220 1070 960 839 465 281 95 CFSM 0.97 0.83 0.97 1.49 1.74 1.29 1.43 1.18 0.85 0.80 0.47 0.41 IN. 1.12 0.93 1.11 1.72 1.81 1.49 1.59 1.36 0.95 0.93 0.54 0.45 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1998 - 1999, BY WATER YEAR (WY) MEAN 1346 1239 1520 3089 3458 2883 2594 2084 1433 1135 887 692 MAX 1439 1402 1793 4250 4675 4099 3347 2647 1771 1233 1174 857 (WY) 1998 1998 1998 1998 1998 1998 1998 1998 1998 1998 1998 1998 MIN 1253 1075 1247 1928 2241 1667 1841 1521 1094 1038 601 526 (WY) 1999 1999 1999 1999 1999 1999 1999 1999 1999 1999 1999 1999 SUMMARY STATISTICS FOR 1998 CALENDAR YEAR FOR 1999 WATER YEAR WATER YEARS 1998 - 1999 ANNUAL TOTAL 485736 ANNUAL MEAN 1331 1854 HIGHEST ANNUAL MEAN 2378 1998 LOWEST ANNUAL MEAN 1331 1999 HIGHEST DAILY MEAN 4180 Feb 2 17100 Mar 9 1998 LOWEST DAILY MEAN 95 Sep 16 95 Sep 16 1999 ANNUAL SEVEN-DAY MINIMUM 269 Sep 15 269 Sep 15 1999 MAXIMUM PEAK FLOW 4540 Feb 2 20200 Mar 9 1998 MAXIMUM PEAK STAGE 5.63 Feb 2 13.72 Mar 9 1998 ANNUAL RUNOFF (CFSM) 1.03 1.44 ANNUAL RUNOFF (INCHES) 14.01 19.53 10 PERCENT EXCEEDS 2030 3240 50 PERCENT EXCEEDS 1260 1430 90 PERCENT EXCEEDS 523 765 e Estimated 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 02153200 BROAD RIVER NEAR BLACKSBURG, SC SOURCE AGENCY USGS STATE 45 COUNTY 021 LATITUDE 350726 LONGITUDE 0813517 NAD27 DRAINAGE AREA 1290* CONTRIBUTING DRAINAGE AREA DATUM 550 NGVD29 Date Processed: 2005-04-11 11:47 By mishealy APPROVED DD #12, , PUBLISHED Discharge, cubic feet per second WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 943 668 1110 1180 1700 1450 1900 1540 1090 806 1120 277 2 784 1150 1280 1160 1770 1390 1470 1980 975 694 948 944 3 759 2250 1030 851 1730 1360 1930 1630 828 567 743 1240 4 656 1790 1230 1000 1750 1470 3690 1750 1010 378 783 1090 5 784 1070 1110 1280 1610 1200 2690 2060 973 407 743 780 6 1170 1330 969 1300 1470 1050 2520 2070 1110 657 869 991 7 912 971 1130 1230 1350 1200 2260 1310 1210 603 752 617 8 749 803 1150 1480 807 1260 2130 1270 976 357 672 443 9 722 818 1170 1160 1280 1140 1900 1420 847 425 545 503 10 978 941 1300 2280 1350 1320 1550 1330 794 562 547 632 11 3360 922 1350 4280 1440 1290 1630 1420 838 371 655 456 12 2060 962 1080 2680 1500 1330 1930 1600 791 391 426 442 13 1340 928 872 2260 1770 1270 1980 1520 681 783 532 682 14 1150 926 1520 1890 2700 1370 2070 1410 743 858 448 155 15 990 710 2150 1980 3130 1350 2600 1300 691 733 360 197 16 993 769 2220 1570 2380 1720 3490 1460 714 712 477 257 17 957 837 1900 1310 2110 3340 3540 1350 745 441 243 465 18 e643 754 1610 1460 2380 2730 3080 1400 847 361 311 394 19 455 870 1180 1800 1880 1700 2290 1380 766 356 433 392 20 724 845 1000 1690 1670 7980 2250 1080 853 346 215 490 21 1030 801 1500 1720 1070 10800 2220 1070 903 341 417 414 22 1080 801 1730 1770 1510 4760 2140 908 758 349 389 518 23 859 672 1610 1540 1510 3500 1630 1190 735 394 358 1180 24 891 861 1510 1290 1520 2850 1450 1420 729 1370 357 1300 25 674 1020 1580 1630 e1470 2680 2230 1430 724 1090 347 962 26 633 1470 1170 1820 e1470 1930 2520 1540 666 949 374 736 27 665 2950 931 1530 e1420 1730 2050 1480 655 839 496 548 28 738 2110 987 1610 1270 2310 2150 983 643 257 312 395 29 757 1710 1260 1710 1560 2190 2640 665 447 412 307 430 30 817 1370 1280 1280 --- 2010 2170 872 887 850 221 456 31 751 --- 1360 1500 --- 1880 --- 1150 --- 1110 356 --- TOTAL 30024 34079 41279 51241 48577 73560 68100 42988 24629 18769 15756 18386 MEAN 969 1136 1332 1653 1675 2373 2270 1387 821 605 508 613 MAX 3360 2950 2220 4280 3130 10800 3690 2070 1210 1370 1120 1300 MIN 455 668 872 851 807 1050 1450 665 447 257 215 155 CFSM 0.75 0.88 1.03 1.28 1.30 1.84 1.76 1.07 0.64 0.47 0.39 0.48 IN. 0.87 0.98 1.19 1.48 1.40 2.12 1.96 1.24 0.71 0.54 0.45 0.53 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1998 - 2000, BY WATER YEAR (WY) MEAN 1220 1204 1457 2610 2850 2713 2486 1851 1229 959 761 665 MAX 1439 1402 1793 4250 4675 4099 3347 2647 1771 1233 1174 857 (WY) 1998 1998 1998 1998 1998 1998 1998 1998 1998 1998 1998 1998 MIN 969 1075 1247 1653 1675 1667 1841 1387 821 605 508 526 (WY) 2000 1999 1999 2000 2000 1999 1999 2000 2000 2000 2000 1999 SUMMARY STATISTICS FOR 1999 CALENDAR YEAR FOR 2000 WATER YEAR WATER YEARS 1998 - 2000 ANNUAL TOTAL 467388 ANNUAL MEAN 1277 1662 HIGHEST ANNUAL MEAN 2378 1998 LOWEST ANNUAL MEAN 1277 2000 HIGHEST DAILY MEAN 10800 Mar 21 17100 Mar 9 1998 LOWEST DAILY MEAN 155 Sep 14 95 Sep 16 1999 ANNUAL SEVEN-DAY MINIMUM 335 Aug 26 269 Sep 15 1999 MAXIMUM PEAK FLOW 16100 Mar 21 20200 Mar 9 1998 MAXIMUM PEAK STAGE 12.01 Mar 21 13.72 Mar 9 1998 ANNUAL RUNOFF (CFSM) 0.990 1.29 ANNUAL RUNOFF (INCHES) 13.48 17.50 10 PERCENT EXCEEDS 2180 2960 50 PERCENT EXCEEDS 1120 1330 90 PERCENT EXCEEDS 426 614 e Estimated 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 02153200 BROAD RIVER NEAR BLACKSBURG, SC SOURCE AGENCY USGS STATE 45 COUNTY 021 LATITUDE 350726 LONGITUDE 0813517 NAD27 DRAINAGE AREA 1290* CONTRIBUTING DRAINAGE AREA DATUM 550 NGVD29 Date Processed: 2005-04-11 11:47 By mishealy APPROVED DD #12, , PUBLISHED Discharge, cubic feet per second WATER YEAR OCTOBER 2000 TO SEPTEMBER 2001 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 672 336 902 498 1150 1130 1890 753 639 732 982 400 2 601 506 1030 575 785 1440 1680 776 1440 e674 1140 405 3 141 624 695 614 1170 1160 2240 1040 1090 e1120 1230 470 4 183 1110 630 501 823 949 1960 966 847 1500 971 2960 5 298 752 585 663 655 734 1960 948 689 1920 905 1570 6 226 482 855 1100 684 292 1890 794 821 1690 864 828 7 e91 455 754 802 765 343 1800 587 777 997 e738 547 8 e441 535 796 742 713 e380 1480 737 654 972 e305 521 9 e503 931 597 594 811 639 1550 688 776 882 668 556 10 e366 1340 653 702 1210 e294 1410 792 740 566 662 456 11 e335 1700 545 780 907 e348 1440 822 690 585 547 431 12 e432 829 539 891 693 611 1510 663 647 679 610 e294 13 e502 669 1130 964 712 945 1670 721 597 1400 537 69 14 e551 494 1280 855 765 940 1570 631 598 971 565 333 15 e724 620 1280 749 1100 957 1150 788 658 801 532 468 16 e672 827 1170 587 1050 964 1030 540 663 680 644 397 17 e539 850 2160 596 1500 948 1190 742 739 623 587 378 18 e462 1220 2430 729 1300 507 1290 659 701 441 514 361 19 e388 672 1790 1010 1200 e371 955 605 598 505 520 553 20 e388 580 1480 2610 1080 464 981 607 429 685 521 822 21 e417 606 1380 1960 656 1710 1210 629 285 1450 454 1060 22 e425 512 1490 1390 837 1980 1050 1940 602 1110 217 791 23 e697 498 1440 1120 989 1650 903 1360 596 753 374 637 24 e1100 504 1090 1200 747 1610 1000 674 499 728 409 e302 25 e968 818 660 1040 1050 1190 1190 829 1630 1140 371 2260 26 e1100 1350 708 1000 1310 e554 1270 1000 915 1950 381 1480 27 e1140 1460 796 1040 1280 e173 889 971 1780 1810 360 952 28 e1130 1290 692 865 1290 e324 1150 821 1120 1530 330 826 29 e1120 992 742 833 --- 698 868 776 871 1310 346 742 30 e859 900 922 796 --- 2990 721 975 732 891 372 646 31 400 --- 925 1020 --- 2450 --- 498 --- 1090 398 --- TOTAL 17871 24462 32146 28826 27232 29745 40897 25332 23823 32185 18054 22515 MEAN 576 815 1037 930 973 960 1363 817 794 1038 582 750 MAX 1140 1700 2430 2610 1500 2990 2240 1940 1780 1950 1230 2960 MIN 91 336 539 498 655 173 721 498 285 441 217 69 CFSM 0.45 0.63 0.80 0.72 0.75 0.74 1.06 0.63 0.62 0.80 0.45 0.58 IN. 0.52 0.71 0.93 0.83 0.79 0.86 1.18 0.73 0.69 0.93 0.52 0.65 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1998 - 2001, BY WATER YEAR (WY) MEAN 1059 1107 1352 2190 2385 2275 2205 1593 1120 979 716 687 MAX 1439 1402 1793 4250 4675 4099 3347 2647 1771 1233 1174 857 (WY) 1998 1998 1998 1998 1998 1998 1998 1998 1998 1998 1998 1998 MIN 576 815 1037 930 973 960 1363 817 794 605 508 526 (WY) 2001 2001 2001 2001 2001 2001 2001 2001 2001 2000 2000 1999 SUMMARY STATISTICS FOR 2000 CALENDAR YEAR FOR 2001 WATER YEAR WATER YEARS 1998 - 2001 ANNUAL TOTAL 323088 ANNUAL MEAN 885 1468 HIGHEST ANNUAL MEAN 2378 1998 LOWEST ANNUAL MEAN 885 2001 HIGHEST DAILY MEAN 2990 Mar 30 17100 Mar 9 1998 LOWEST DAILY MEAN 69 Sep 13 69 Sep 13 2001 ANNUAL SEVEN-DAY MINIMUM 269 Oct 3 269 Oct 3 2000 MAXIMUM PEAK FLOW 3990 Mar 30 20200 Mar 9 1998 MAXIMUM PEAK STAGE 5.24 Sep 4 13.72 Mar 9 1998 ANNUAL RUNOFF (CFSM) 0.686 1.14 ANNUAL RUNOFF (INCHES) 9.32 15.46 10 PERCENT EXCEEDS 1490 2660 50 PERCENT EXCEEDS 776 1160 90 PERCENT EXCEEDS 399 499 e Estimated 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 02153200 BROAD RIVER NEAR BLACKSBURG, SC SOURCE AGENCY USGS STATE 45 COUNTY 021 LATITUDE 350726 LONGITUDE 0813517 NAD27 DRAINAGE AREA 1290* CONTRIBUTING DRAINAGE AREA DATUM 550 NGVD29 Date Processed: 2005-04-11 11:47 By mishealy APPROVED DD #12, , PUBLISHED Discharge, cubic feet per second WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 501 388 644 668 1210 825 1250 712 740 338 267 182 2 430 462 605 598 1130 1110 1350 998 664 345 246 182 3 475 585 895 514 841 1220 1280 914 487 331 235 186 4 423 514 e288 805 771 1280 1180 1560 260 402 209 e294 5 426 418 e234 757 813 1500 1260 949 786 435 185 103 6 571 433 708 785 1020 1250 1100 968 749 410 167 124 7 516 631 767 898 1380 1150 881 921 636 378 166 126 8 363 517 623 1130 2190 1190 854 1130 933 328 167 122 9 338 603 568 929 1730 1100 1170 1130 775 295 132 144 10 418 526 461 851 1340 900 1110 1020 610 272 96 146 11 586 429 1400 e952 1040 722 1240 774 446 257 64 125 12 536 412 1070 e932 1300 847 1280 923 476 255 41 110 13 454 412 914 806 1210 2270 1540 676 396 279 82 99 14 556 422 999 676 1250 1990 980 914 475 315 89 98 15 800 404 919 581 1100 1710 937 1310 301 275 128 140 16 821 464 789 644 1060 1560 1240 956 340 337 184 624 17 697 665 547 732 936 1280 1140 954 458 377 183 874 18 685 660 1090 723 803 1680 1200 885 273 370 212 645 19 566 483 1440 1040 905 2110 1360 633 286 304 237 439 20 692 405 1260 1570 910 1640 1250 720 294 274 362 486 21 600 425 989 1250 1010 1630 857 406 287 263 238 492 22 471 486 1040 1640 1000 1660 781 531 280 255 227 568 23 393 537 791 2390 1040 1550 892 698 284 245 211 442 24 469 861 625 3300 646 1040 1070 632 277 242 185 e330 25 663 1080 784 3130 700 1060 868 695 277 255 165 e195 26 703 1020 722 2790 891 1290 1350 634 273 275 154 770 27 538 634 711 1560 913 1360 1250 493 273 292 182 1730 28 530 876 965 1450 764 1320 679 400 313 307 187 2440 29 499 671 1170 1650 --- 1410 640 600 615 294 249 1740 30 398 576 800 1360 --- 1520 585 686 685 282 171 1130 31 352 --- 484 1340 --- 1080 --- 607 --- 272 175 --- TOTAL 16470 16999 25302 38451 29903 42254 32574 25429 13949 9559 5596 15086 MEAN 531 567 816 1240 1068 1363 1086 820 465 308 181 503 MAX 821 1080 1440 3300 2190 2270 1540 1560 933 435 362 2440 MIN 338 388 234 514 646 722 585 400 260 242 41 98 CFSM 0.41 0.44 0.63 0.96 0.83 1.06 0.84 0.64 0.36 0.24 0.14 0.39 IN. 0.47 0.49 0.73 1.11 0.86 1.22 0.94 0.73 0.40 0.28 0.16 0.44 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1998 - 2002, BY WATER YEAR (WY) MEAN 954 999 1245 2000 2123 2092 1981 1438 989 845 609 650 MAX 1439 1402 1793 4250 4675 4099 3347 2647 1771 1233 1174 857 (WY) 1998 1998 1998 1998 1998 1998 1998 1998 1998 1998 1998 1998 MIN 531 567 816 930 973 960 1086 817 465 308 181 503 (WY) 2002 2002 2002 2001 2001 2001 2002 2001 2002 2002 2002 2002 SUMMARY STATISTICS FOR 2001 CALENDAR YEAR FOR 2002 WATER YEAR WATER YEARS 1998 - 2002 ANNUAL TOTAL 307380 271572 ANNUAL MEAN 842 744 1323 HIGHEST ANNUAL MEAN 2378 1998 LOWEST ANNUAL MEAN 744 2002 HIGHEST DAILY MEAN 2990 Mar 30 3300 Jan 24 17100 Mar 9 1998 LOWEST DAILY MEAN 69 Sep 13 41 Aug 12 41 Aug 12 2002 ANNUAL SEVEN-DAY MINIMUM 329 Sep 12 90 Aug 9 90 Aug 9 2002 MAXIMUM PEAK FLOW 3880 Jan 24 20200 Mar 9 1998 MAXIMUM PEAK STAGE 5.27 Jan 24 13.72 Mar 9 1998 ANNUAL RUNOFF (CFSM) 0.653 0.577 1.03 ANNUAL RUNOFF (INCHES) 8.86 7.83 13.93 10 PERCENT EXCEEDS 1440 1350 2440 50 PERCENT EXCEEDS 734 660 1040 90 PERCENT EXCEEDS 405 210 397 e Estimated 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 02153200 BROAD RIVER NEAR BLACKSBURG, SC SOURCE AGENCY USGS STATE 45 COUNTY 021 LATITUDE 350726 LONGITUDE 0813517 NAD27 DRAINAGE AREA 1290* CONTRIBUTING DRAINAGE AREA DATUM 550 NGVD29 Date Processed: 2005-04-11 11:47 By mishealy APPROVED DD #12, , PUBLISHED Discharge, cubic feet per second WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 1060 1010 909 2520 1740 2820 2870 2810 2810 2760 9210 2140 2 791 1110 727 2480 1530 2530 2580 2820 2710 9700 4430 2270 3 842 637 844 2180 1290 2320 2410 3180 3730 9640 3980 2400 4 466 762 1080 2180 1540 2360 2440 3140 4490 4800 5260 2550 5 531 623 2180 1710 1650 2280 2590 2890 3990 3730 8250 2490 6 515 1230 2920 1580 1640 3800 2320 5540 3200 3290 5330 2170 7 624 1120 2320 1850 1810 4090 6420 11200 5100 3060 7610 1820 8 e400 933 1800 2060 1690 3290 5630 8910 14500 3030 6420 1710 9 158 1040 1710 1930 1600 2720 5920 5430 9750 2920 4770 2000 10 220 891 1460 2060 1340 2310 e12700 4240 5860 2840 4030 2160 11 707 867 2220 2000 1420 2310 e20400 3690 4330 2960 4780 2140 12 666 2780 3170 1400 1720 2130 9060 3340 3800 2860 5030 2100 13 607 2890 3380 1330 1810 2040 5660 3180 3450 6410 4400 1720 14 515 2310 5260 1650 1850 2070 4280 3010 3270 7160 3450 1610 15 630 1830 3410 1600 1840 2190 3840 2890 3080 3660 4000 1520 16 3310 2200 2590 1820 1650 3090 3440 2970 3510 3080 4120 1900 17 3230 3930 2200 1480 1810 3090 3230 3200 4010 2930 4210 2170 18 1880 3300 1910 1670 1880 3990 14400 3060 3880 2710 3960 1890 19 1520 2410 1940 1640 2150 4090 14600 3000 4580 2890 3420 1670 20 899 1890 2620 1370 2090 e30300 6430 3050 3940 2790 2960 1520 21 702 1490 3180 1310 2010 e21500 4890 2930 3240 2520 2800 1380 22 846 1580 2400 1510 5150 7210 4150 e10000 2900 2520 2660 1450 23 951 1550 2090 1800 9390 4810 3640 e18000 2780 2610 2910 3130 24 644 939 4790 1420 4610 3900 3350 8710 2780 2910 2690 2740 25 752 962 8960 1440 3370 3430 3240 8700 2480 2480 2480 2040 26 973 1190 4560 1260 3040 3170 3480 5510 2230 2430 2300 1860 27 806 1420 3410 1270 3010 3040 3300 4690 2540 2190 2070 1900 28 667 1190 3040 1610 2950 2880 3000 3870 2760 1830 2170 1690 29 1240 882 2500 1550 --- 2730 2900 3350 2570 1920 2310 1740 30 1390 1080 2360 2050 --- 2870 3000 3270 2390 2560 2380 1640 31 1010 --- 2450 1950 --- 3130 --- 3070 --- 9300 2140 --- TOTAL 29552 46046 84390 53680 67580 142490 166170 153650 120660 116490 126530 59520 MEAN 953 1535 2722 1732 2414 4596 5539 4956 4022 3758 4082 1984 MAX 3310 3930 8960 2520 9390 30300 20400 18000 14500 9700 9210 3130 MIN 158 623 727 1260 1290 2040 2320 2810 2230 1830 2070 1380 CFSM 0.74 1.19 2.11 1.34 1.87 3.56 4.29 3.84 3.12 2.91 3.16 1.54 IN. 0.85 1.33 2.43 1.55 1.95 4.11 4.79 4.43 3.48 3.36 3.65 1.72 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1998 - 2003, BY WATER YEAR (WY) MEAN 954 1088 1491 1955 2171 2510 2574 2025 1495 1330 1188 872 MAX 1439 1535 2722 4250 4675 4596 5539 4956 4022 3758 4082 1984 (WY) 1998 2003 2003 1998 1998 2003 2003 2003 2003 2003 2003 2003 MIN 531 567 816 930 973 960 1086 817 465 308 181 503 (WY) 2002 2002 2002 2001 2001 2001 2002 2001 2002 2002 2002 2002 SUMMARY STATISTICS FOR 2002 CALENDAR YEAR FOR 2003 WATER YEAR WATER YEARS 1998 - 2003 ANNUAL TOTAL 372789 1166758 ANNUAL MEAN 1021 3197 1635 HIGHEST ANNUAL MEAN 3197 2003 LOWEST ANNUAL MEAN 744 2002 HIGHEST DAILY MEAN 8960 Dec 25 30300 Mar 20 30300 Mar 20 2003 LOWEST DAILY MEAN 41 Aug 12 158 Oct 9 41 Aug 12 2002 ANNUAL SEVEN-DAY MINIMUM 90 Aug 9 416 Oct 4 90 Aug 9 2002 MAXIMUM PEAK FLOW 1000000 Mar 20 1000000 Mar 20 2003 MAXIMUM PEAK STAGE 21.06 Mar 20 21.06 Mar 20 2003 ANNUAL RUNOFF (CFSM) 0.792 2.48 1.27 ANNUAL RUNOFF (INCHES) 10.75 33.65 17.22 10 PERCENT EXCEEDS 2180 5370 3100 50 PERCENT EXCEEDS 847 2540 1190 90 PERCENT EXCEEDS 203 1010 429 e Estimated 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 02153200 BROAD RIVER NEAR BLACKSBURG, SC SOURCE AGENCY USGS STATE 45 COUNTY 021 LATITUDE 350726 LONGITUDE 0813517 NAD27 DRAINAGE AREA 1290* CONTRIBUTING DRAINAGE AREA DATUM 550 NGVD29 Date Processed: 2005-04-11 11:47 By mishealy APPROVED DD #12, , PUBLISHED Discharge, cubic feet per second WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 1800 1870 2010 1640 1140 1760 2070 1780 1350 2450 1270 1390 2 1720 1370 1890 1630 1100 1710 1730 1870 1160 2380 1270 1560 3 1430 1280 1690 1610 1880 1700 1550 1600 1140 2810 919 1690 4 1650 1690 1840 1280 2130 1680 1310 1650 1000 2230 905 1530 5 1670 1590 2090 1410 2010 1920 1220 1490 768 1910 1010 1210 6 1430 1850 2020 1680 3550 1710 1490 1410 938 1780 832 913 7 1650 2080 1830 1670 12900 1430 1560 1370 776 1730 1040 3240 8 1780 2090 1740 1640 5440 1330 1330 1520 1100 1140 1080 e30000 9 1750 1920 2060 1630 3630 1700 1320 1150 1140 1200 803 e48000 10 2050 1490 2390 1630 2910 1610 1420 1480 1160 1320 740 8310 11 1840 1640 3780 1430 2640 1510 1100 1420 919 1110 864 4320 12 1830 1760 3140 1510 2380 1540 1390 1330 801 1280 1660 3770 13 1930 1630 e2720 1560 2540 1780 2930 1360 1350 1520 2190 3340 14 1850 1440 e4110 1490 2300 1300 4440 1500 2080 1800 1360 2800 15 2000 1660 e3630 1250 2000 1340 2830 1350 3460 1000 1020 2460 16 1620 1450 e3050 1340 2070 1480 2260 985 6930 881 692 2750 17 1610 1340 e2880 1490 2170 1590 1980 1010 3320 852 957 4900 18 1740 1500 e2760 1510 2130 1570 1560 1330 2020 903 1280 9670 19 1400 3310 2410 1300 1940 1370 1500 1520 1890 903 1780 4720 20 1400 7240 2140 1350 1690 1390 1610 1550 1340 1100 1110 3640 21 1560 3530 1960 1520 2020 1180 1740 1390 1320 1120 758 3290 22 1370 2920 1960 1510 1610 1130 1520 1280 1900 1010 1430 3070 23 1540 2310 1970 1510 1560 1260 1490 949 2730 875 986 2710 24 1540 2060 1950 1510 1680 1360 1500 891 3200 829 1070 2420 25 1690 2080 1940 1200 1900 1300 1120 1170 2930 752 1260 2530 26 1370 1980 1870 1230 1670 1350 1110 1280 3840 926 1140 2000 27 1630 2000 1620 1560 1860 1300 1680 1070 2520 1420 996 1880 28 2370 1910 1790 1550 1920 1130 1760 1010 1920 e1640 758 9980 29 1940 2210 1650 1480 1940 1030 1380 897 1980 1910 990 7420 30 1650 1980 1650 1230 --- 1300 1220 786 1770 1450 821 4190 31 1610 --- 1700 1630 --- 1700 --- 996 --- 1240 1680 --- TOTAL 52420 63180 70240 45980 74710 45460 51120 40394 58752 43471 34671 179703 MEAN 1691 2106 2266 1483 2576 1466 1704 1303 1958 1402 1118 5990 MAX 2370 7240 4110 1680 12900 1920 4440 1870 6930 2810 2190 48000 MIN 1370 1280 1620 1200 1100 1030 1100 786 768 752 692 913 CFSM 1.31 1.63 1.76 1.15 2.00 1.14 1.32 1.01 1.52 1.09 0.87 4.64 IN. 1.51 1.82 2.03 1.33 2.15 1.31 1.47 1.16 1.69 1.25 1.00 5.18 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1998 - 2004, BY WATER YEAR (WY) MEAN 1059 1234 1602 1888 2231 2361 2450 1922 1561 1340 1178 1603 MAX 1691 2106 2722 4250 4675 4596 5539 4956 4022 3758 4082 5990 (WY) 2004 2004 2003 1998 1998 2003 2003 2003 2003 2003 2003 2004 MIN 531 567 816 930 973 960 1086 817 465 308 181 503 (WY) 2002 2002 2002 2001 2001 2001 2002 2001 2002 2002 2002 2002 SUMMARY STATISTICS FOR 2003 CALENDAR YEAR FOR 2004 WATER YEAR WATER YEARS 1998 - 2004 ANNUAL TOTAL 1192610 760101 ANNUAL MEAN 3267 2077 1698 HIGHEST ANNUAL MEAN 3197 2003 LOWEST ANNUAL MEAN 744 2002 HIGHEST DAILY MEAN 30300 Mar 20 48000 Sep 9 48000 Sep 9 2004 LOWEST DAILY MEAN 1260 Jan 26 692 Aug 16 41 Aug 12 2002 ANNUAL SEVEN-DAY MINIMUM 1430 Jan 21 910 Aug 5 90 Aug 9 2002 MAXIMUM PEAK FLOW 1000000 Sep 8 1000000 Sep 8 2004 MAXIMUM PEAK STAGE 21.92 Sep 8 21.92 Sep 8 2004 ANNUAL RUNOFF (CFSM) 2.53 1.61 1.32 ANNUAL RUNOFF (INCHES) 34.39 21.92 17.89 10 PERCENT EXCEEDS 5370 2920 3080 50 PERCENT EXCEEDS 2480 1610 1280 90 PERCENT EXCEEDS 1570 1010 464 e Estimated