1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 02135517 POCOTALIGO RIVER AT SUMTER, SC SOURCE AGENCY USGS STATE 45 COUNTY 085 LATITUDE 335232 LONGITUDE 0802107 NAD27 DRAINAGE AREA 134.* CONTRIBUTING DRAINAGE AREA DATUM 110.40 NGVD29 Date Processed: 2004-08-20 15:03 By mishealy APPROVED DD #13, , PUBLISHED Discharge, cubic feet per second WATER YEAR OCTOBER 1992 TO SEPTEMBER 1993 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 63 39 284 510 205 192 294 55 208 33 28 9.7 2 58 40 216 371 203 175 296 52 157 46 21 9.1 3 51 43 194 284 215 166 277 59 125 60 17 8.9 4 75 48 156 242 181 290 232 62 97 43 16 8.5 5 160 88 138 227 167 401 225 73 82 33 17 26 6 217 141 119 574 190 444 295 84 73 29 17 96 7 186 155 125 1200 235 361 311 91 58 30 17 104 8 164 148 133 2080 417 277 317 93 47 32 19 66 9 165 108 140 3460 525 242 279 84 43 29 20 47 10 184 86 151 2590 510 218 259 73 42 26 20 24 11 177 70 168 1410 422 204 307 60 38 22 18 19 12 159 68 159 1080 338 188 318 51 64 19 17 17 13 134 94 146 1170 296 269 284 50 105 17 16 16 14 109 112 133 1210 282 479 228 55 171 16 18 17 15 93 101 122 940 210 563 189 60 203 14 19 17 16 84 95 112 679 212 462 178 60 162 13 18 18 17 77 84 105 495 221 320 166 58 112 12 16 21 18 70 73 102 412 219 299 159 53 81 12 16 26 19 60 63 101 349 214 315 152 46 65 15 15 40 20 52 57 96 335 214 286 135 48 54 27 14 72 21 47 56 90 329 194 264 129 81 44 28 14 122 22 44 76 95 418 191 228 127 92 39 23 15 254 23 42 151 97 491 211 218 134 86 36 21 18 229 24 40 225 88 480 222 228 131 60 33 29 16 177 25 38 335 80 430 212 288 112 42 29 34 14 178 26 38 486 76 407 205 276 97 35 28 42 13 121 27 36 684 93 360 208 335 94 33 32 39 12 87 28 36 773 624 285 204 370 96 32 32 32 11 69 29 37 491 1300 269 --- 353 96 31 31 31 11 54 30 37 427 1330 237 --- 352 78 32 31 50 11 50 31 37 --- 718 221 --- 295 --- 100 --- 42 10 --- TOTAL 2770 5417 7491 23545 7123 9358 5995 1891 2322 899 504 2003.2 MEAN 89.4 181 242 760 254 302 200 61.0 77.4 29.0 16.3 66.8 MAX 217 773 1330 3460 525 563 318 100 208 60 28 254 MIN 36 39 76 221 167 166 78 31 28 12 10 8.5 CFSM 0.67 1.35 1.80 5.67 1.90 2.25 1.49 0.46 0.58 0.22 0.12 0.50 IN. 0.77 1.50 2.08 6.54 1.98 2.60 1.66 0.52 0.64 0.25 0.14 0.56 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1993 - 1993, BY WATER YEAR (WY) MEAN 89.4 181 242 760 254 302 200 61.0 77.4 29.0 16.3 66.8 MAX 89.4 181 242 760 254 302 200 61.0 77.4 29.0 16.3 66.8 (WY) 1993 1993 1993 1993 1993 1993 1993 1993 1993 1993 1993 1993 MIN 89.4 181 242 760 254 302 200 61.0 77.4 29.0 16.3 66.8 (WY) 1993 1993 1993 1993 1993 1993 1993 1993 1993 1993 1993 1993 SUMMARY STATISTICS FOR 1993 WATER YEAR ANNUAL TOTAL 69318.2 ANNUAL MEAN 190 HIGHEST DAILY MEAN 3460 Jan 9 LOWEST DAILY MEAN 8.5 Sep 4 ANNUAL SEVEN-DAY MINIMUM 9.7 Aug 29 MAXIMUM PEAK FLOW 3830 Jan 9 MAXIMUM PEAK STAGE 11.93 Jan 9 INSTANTANEOUS LOW FLOW 8.1 Sep 4 ANNUAL RUNOFF (CFSM) 0.000 ANNUAL RUNOFF (INCHES) 0.00 10 PERCENT EXCEEDS 403 50 PERCENT EXCEEDS 96 90 PERCENT EXCEEDS 18 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 02135517 POCOTALIGO RIVER AT SUMTER, SC SOURCE AGENCY USGS STATE 45 COUNTY 085 LATITUDE 335232 LONGITUDE 0802107 NAD27 DRAINAGE AREA 134.* CONTRIBUTING DRAINAGE AREA DATUM 110.40 NGVD29 Date Processed: 2004-08-20 15:03 By mishealy APPROVED DD #13, , PUBLISHED Discharge, cubic feet per second WATER YEAR OCTOBER 1993 TO SEPTEMBER 1994 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 47 344 137 67 194 141 185 18 7.0 94 450 238 2 40 301 106 131 182 318 162 21 9.2 80 362 192 3 29 212 92 153 184 478 142 22 17 57 229 166 4 22 147 80 134 171 579 129 35 44 44 159 191 5 24 126 58 135 137 394 119 61 62 37 179 190 6 42 118 56 118 134 316 97 60 64 61 352 188 7 52 105 61 105 135 234 92 57 133 70 344 172 8 49 69 63 92 139 204 96 52 154 50 244 166 9 45 49 61 82 155 186 99 46 98 38 182 158 10 32 42 59 78 172 230 103 38 80 30 138 135 11 22 38 67 76 217 281 103 30 74 23 110 115 12 19 35 81 111 229 201 93 24 67 19 93 95 13 18 35 77 186 222 178 93 22 51 16 78 75 14 16 36 74 175 196 188 105 23 44 13 68 64 15 15 41 80 180 168 186 105 17 56 12 70 59 16 15 43 98 155 146 177 123 22 52 11 145 55 17 23 39 85 123 135 169 135 35 42 10 342 53 18 25 37 71 142 124 165 110 26 34 9.8 554 96 19 23 36 67 162 117 149 101 18 28 9.7 386 1050 20 22 36 67 155 111 116 95 15 22 11 267 1230 21 21 37 91 145 98 73 79 13 18 24 274 766 22 20 37 107 142 76 68 45 12 15 36 277 391 23 20 36 105 144 71 73 35 11 13 38 332 248 24 21 34 118 140 120 76 31 9.5 11 477 283 183 25 21 33 119 136 152 148 23 8.3 9.8 489 244 175 26 34 32 106 131 193 238 20 7.3 11 250 198 222 27 64 44 90 127 203 272 19 6.8 26 157 144 228 28 80 138 78 146 166 241 18 6.7 79 147 110 222 29 75 176 73 177 --- 226 17 6.5 96 134 84 180 30 138 170 69 177 --- 203 17 6.2 95 175 69 154 31 344 --- 64 195 --- 187 --- 6.4 --- 515 105 --- TOTAL 1418 2626 2560 4220 4347 6695 2591 735.7 1512.0 3137.5 6872 7457 MEAN 45.7 87.5 82.6 136 155 216 86.4 23.7 50.4 101 222 249 MAX 344 344 137 195 229 579 185 61 154 515 554 1230 MIN 15 32 56 67 71 68 17 6.2 7.0 9.7 68 53 CFSM 0.34 0.65 0.62 1.02 1.16 1.61 0.64 0.18 0.38 0.76 1.65 1.85 IN. 0.39 0.73 0.71 1.17 1.21 1.86 0.72 0.20 0.42 0.87 1.91 2.07 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1993 - 1994, BY WATER YEAR (WY) MEAN 67.5 134 162 448 205 259 143 42.4 63.9 65.1 119 158 MAX 89.4 181 242 760 254 302 200 61.0 77.4 101 222 249 (WY) 1993 1993 1993 1993 1993 1993 1993 1993 1993 1994 1994 1994 MIN 45.7 87.5 82.6 136 155 216 86.4 23.7 50.4 29.0 16.3 66.8 (WY) 1994 1994 1994 1994 1994 1994 1994 1994 1994 1993 1993 1993 SUMMARY STATISTICS FOR 1993 CALENDAR YEAR FOR 1994 WATER YEAR WATER YEARS 1993 - 1994 ANNUAL TOTAL 44171.2 ANNUAL MEAN 121 155 HIGHEST ANNUAL MEAN 190 1993 LOWEST ANNUAL MEAN 121 1994 HIGHEST DAILY MEAN 1230 Sep 20 3460 Jan 9 1993 LOWEST DAILY MEAN 6.2 May 30 6.2 May 30 1994 ANNUAL SEVEN-DAY MINIMUM 6.7 May 26 6.7 May 26 1994 MAXIMUM PEAK FLOW 1320 Sep 19 3830 Jan 9 1993 MAXIMUM PEAK STAGE 10.82 Sep 19 11.93 Jan 9 1993 INSTANTANEOUS LOW FLOW 5.9 May 30 5.9 May 30 1994 ANNUAL RUNOFF (CFSM) 0.90 1.16 ANNUAL RUNOFF (INCHES) 12.26 15.76 10 PERCENT EXCEEDS 236 317 50 PERCENT EXCEEDS 93 95 90 PERCENT EXCEEDS 18 18 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 02135517 POCOTALIGO RIVER AT SUMTER, SC SOURCE AGENCY USGS STATE 45 COUNTY 085 LATITUDE 335232 LONGITUDE 0802107 NAD27 DRAINAGE AREA 134.* CONTRIBUTING DRAINAGE AREA DATUM 110.40 NGVD29 Date Processed: 2004-08-20 15:03 By mishealy APPROVED DD #13, , PUBLISHED Discharge, cubic feet per second WATER YEAR OCTOBER 1994 TO SEPTEMBER 1995 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 140 152 398 348 --- --- --- 56 25 300 57 169 2 127 152 398 330 --- --- --- 55 28 480 54 125 3 139 152 335 304 --- --- --- 54 32 450 60 106 4 267 149 252 241 --- --- --- 50 36 250 80 93 5 353 140 261 240 --- --- --- 48 80 200 107 82 6 244 132 311 240 --- --- --- 45 150 230 115 75 7 201 127 313 685 --- --- --- 40 330 260 102 70 8 179 125 372 1500 --- --- --- 35 350 200 80 68 9 158 123 317 1330 --- --- --- 30 250 160 58 68 10 157 121 249 785 --- --- --- 32 180 140 46 68 11 304 143 218 561 --- --- --- 37 150 120 40 68 12 323 247 228 419 --- --- --- 35 120 110 36 64 13 470 223 237 381 --- --- --- 32 80 90 27 60 14 856 205 242 535 --- --- --- 35 60 80 26 60 15 800 176 226 1100 --- --- --- 32 52 70 24 69 16 788 146 205 1400 --- --- --- 30 45 80 27 93 17 601 149 193 1070 --- --- --- 27 40 57 34 117 18 423 174 181 670 --- --- --- 29 45 61 34 116 19 310 186 163 494 --- --- --- 31 55 67 36 104 20 238 170 154 437 --- --- --- 29 100 86 44 91 21 210 163 160 390 --- --- --- 26 210 90 34 81 22 202 322 216 349 --- --- --- 24 180 110 26 77 23 205 299 1690 326 --- --- --- 22 140 160 24 116 24 212 275 4550 381 --- --- --- 21 110 174 30 172 25 203 272 2800 495 --- --- --- 20 90 151 38 251 26 180 243 1200 418 --- --- --- 19 85 125 119 249 27 172 208 810 306 --- --- --- 25 120 105 1580 195 28 166 231 596 338 --- --- --- 40 160 106 2330 150 29 159 253 492 445 --- --- --- 35 150 84 1220 120 30 150 351 407 436 --- --- --- 32 190 71 422 98 31 147 --- 363 433 --- --- --- 30 --- 62 230 --- TOTAL 9084 5809 18537 17387 --- --- --- 1056 3643 4729 7140 3275 MEAN 293 194 598 561 --- --- --- 34.1 121 153 230 109 MAX 856 351 4550 1500 --- --- --- 56 350 480 2330 251 MIN 127 121 154 240 --- --- --- 19 25 57 24 60 CFSM 2.19 1.45 4.46 4.19 --- --- --- 0.25 0.91 1.14 1.72 0.81 IN. 2.52 1.61 5.15 4.83 --- --- --- 0.29 1.01 1.31 1.98 0.91 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1993 - 1995, BY WATER YEAR (WY) MEAN 143 154 307 486 205 259 143 39.6 83.1 94.3 156 142 MAX 293 194 598 760 254 302 200 61.0 121 153 230 249 (WY) 1995 1995 1995 1993 1993 1993 1993 1993 1995 1995 1995 1994 MIN 45.7 87.5 82.6 136 155 216 86.4 23.7 50.4 29.0 16.3 66.8 (WY) 1994 1994 1994 1994 1994 1994 1994 1994 1994 1993 1993 1993 SUMMARY STATISTICS FOR 1994 CALENDAR YEAR WATER YEARS 1993 - 1995 ANNUAL MEAN 155 HIGHEST ANNUAL MEAN 190 1993 LOWEST ANNUAL MEAN 121 1994 HIGHEST DAILY MEAN 4550 Dec 24 1994 LOWEST DAILY MEAN 6.2 May 30 1994 ANNUAL SEVEN-DAY MINIMUM 6.7 May 26 1994 MAXIMUM PEAK FLOW 5080 Dec 24 1994 MAXIMUM PEAK STAGE 12.28 Dec 24 1994 INSTANTANEOUS LOW FLOW 5.9 May 30 1994 ANNUAL RUNOFF (CFSM) 1.16 ANNUAL RUNOFF (INCHES) 15.76 10 PERCENT EXCEEDS 355 50 PERCENT EXCEEDS 106 90 PERCENT EXCEEDS 21