110 CONNECTICUT RIVER BASIN 01129200 CONNECTICUT RIVER BELOW INDIAN STREAM, NEAR PITTSBURG, NH LOCATION.--Lat 45° 02'25", long 71° 26'40", Coos County, Hydrologic Unit 01080101, on right bank, 1,200 ft downstream from Indian Stream, 2.7 mi west of US Highway 3 and State Highway 145 intersection in Pittsburg, 3.9 mi northeast of Post Office in Beecher Falls, and at mile 376.5. DRAINAGE AREA.--254 mi2. WATER-DISCHARGE RECORDS PERIOD OF RECORD.--October 1956 to current year. REVISED RECORDS.--WDR MA-NH-RI-VT-73-l: 1958, 1960(M), 1969(M). GAGE.--Water-stage recorder. Elevation of gage is 1,150 ft above National Geodetic Vertical Datum of 1929, from topographic map. REMARKS.--Records good except those for estimated daily discharges, which are fair. Flow regulated by First Connecticut and Second Connecticut Lakes and Lake Francis 3.7 mi upstream. EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 5,820 ft3/s, May 11, 2000, gage height, 8.37 ft; minimum daily 30 ft3/s, August 6, 1965. EXTREMES FOR CURRENT YEAR.--Maximum discharge, 2,400 ft3/s, Apr. 29, gage height, 5.20 ft; minimum daily discharge, 138 ft3/s, Sept. 5. DISCHARGE, CUBIC FEET PER SECOND WATER YEAR OCTOBER 2004 TO SEPTEMBER 2005 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 317 216 441 443 543 647 413 1,790 917 787 510 637 2 315 254 564 486 537 647 488 1,440 711 474 514 240 3 313 359 431 544 531 641 826 1,230 612 465 532 171 4 313 339 377 594 527 503 1,630 977 542 455 481 148 5 313 349 346 627 527 426 1,280 749 490 455 429 138 6 313 381 275 597 524 426 984 672 451 438 423 160 7 313 517 306 596 521 375 1,200 617 413 245 419 215 8 313 498 314 591 524 275 1,860 604 387 233 414 213 9 312 391 305 587 527 e275 1,260 592 375 312 290 216 10 313 320 299 582 531 279 953 575 390 442 226 211 11 313 302 296 576 533 e279 891 559 406 1,080 240 208 12 305 284 296 568 533 279 674 523 376 473 229 205 13 309 259 287 571 533 279 551 425 364 532 225 260 14 308 249 276 841 528 279 527 402 478 499 224 311 15 313 243 e260 1,100 527 279 549 420 1,260 449 263 323 16 334 243 e252 870 527 278 617 446 1,110 400 314 326 17 359 241 257 755 533 232 835 450 1,270 386 311 324 18 354 238 e252 658 636 e199 1,120 428 1,630 380 308 369 19 338 265 252 616 692 199 955 417 1,360 430 305 382 20 327 303 e252 618 690 199 1,160 404 955 499 304 354 21 322 281 e252 605 680 199 1,540 394 624 529 309 339 22 318 280 e250 589 677 200 773 393 586 523 307 329 23 313 272 266 581 673 202 769 402 544 521 304 330 24 312 265 702 576 668 203 999 417 507 513 307 333 25 309 437 594 569 666 203 1,190 404 475 510 303 327 26 309 927 381 567 660 205 1,420 402 455 510 301 345 27 234 474 e340 565 654 205 1,850 459 437 556 299 459 28 197 408 e300 560 653 211 1,590 483 401 612 299 410 29 195 721 290 556 --- 223 2,120 483 438 547 304 375 30 194 503 316 551 --- 251 1,930 587 1,150 525 307 461 31 206 --- 395 549 --- 322 --- 938 --- 513 409 --- TOTAL 9,304 10,819 10,424 19,088 16,355 9,420 32,954 19,082 20,114 15,293 10,410 9,119 MEAN 300 361 336 616 584 304 1,098 616 670 493 336 304 MAX 359 927 702 1,100 692 647 2,120 1,790 1,630 1,080 532 637 MIN 194 216 250 443 521 199 413 393 364 233 224 138 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1957 - 2005, BY WATER YEAR (WY) MEAN 533 544 714 796 745 523 654 519 390 413 434 442 MAX 1,342 1,056 1,485 1,198 1,325 1,088 1,206 1,691 863 1,187 1,043 1,095 (WY) (1978) (1978) (1960) (2004) (1974) (1979) (2002) (1974) (1984) (1996) (1976) (1963) MIN 111 181 310 462 219 118 247 162 80.9 55.7 64.7 111 (WY) (1969) (1967) (2002) (1979) (2003) (2001) (1995) (1988) (1962) (1965) (1975) (1968) CONNECTICUT RIVER BASIN 111 01129200 CONNECTICUT RIVER BELOW INDIAN STREAM, NEAR PITTSBURG, NH—Continued SUMMARY STATISTICS FOR 2004 CALENDAR YEAR FOR 2005 WATER YEAR WATER YEARS 1957 - 2005 ANNUAL TOTAL 185,001 182,382 ANNUAL MEAN 505 500 558 HIGHEST ANNUAL MEAN 789 1976 LOWEST ANNUAL MEAN 339 2003 HIGHEST DAILY MEAN 2,230 Aug 31 2,120 Apr 29 5,610 May 11, 2000 LOWEST DAILY MEAN 175 Feb 29 138 Sep 5 30 Aug 6, 1965 ANNUAL SEVEN-DAY MINIMUM 177 Feb 25 180 Sep 3 33 Aug 20, 1975 MAXIMUM PEAK FLOW 2,400 Apr 29 5,820 May 11, 2000 MAXIMUM PEAK STAGE 5.20 Apr 29 8.37 May 11, 2000 10 PERCENT EXCEEDS 1,070 853 1,020 50 PERCENT EXCEEDS 332 423 500 90 PERCENT EXCEEDS 212 240 159 e Estimated 10,000 5,000 2,000 1,000 DISCHARGE, 500 IN CUBIC FEET PER SECOND 200 100 O N D J F M A M J J A S 2004 2005 112 CONNECTICUT RIVER BASIN 01129200 CONNECTICUT RIVER BELOW INDIAN STREAM, NEAR PITTSBURG, NH—Continued WATER-QUALITY RECORDS PERIOD OF DAILY RECORD.-- WATER TEMPERATURE: June 1999 to September 30, 2005 (discontinued). INSTRUMENTATION.--Water-temperature recorder since June 16, 1999, provides continuous recordings. REMARKS.--Records fair. TEMPERATURE, WATER, DEGREES CELSIUS WATER YEAR OCTOBER 2004 TO SEPTEMBER 2005 DAY MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN OCTOBER NOVEMBER DECEMBER JANUARY 1 19.0 16.5 17.5 11.0 9.5 10.5 3.5 1.5 2.5 2.5 0.0 1.5 2 19.0 16.0 17.5 10.0 8.5 9.5 3.0 1.0 2.0 2.0 0.0 1.0 3 18.5 16.0 17.0 9.5 5.5 7.5 2.0 0.5 1.5 2.5 0.5 1.5 4 18.5 15.5 17.0 8.0 5.0 6.0 2.5 0.5 1.5 2.5 1.0 1.5 5 16.5 15.0 16.0 7.0 3.5 5.5 2.5 0.5 1.5 2.5 0.5 1.5 6 16.5 14.5 15.5 6.0 3.5 4.5 3.0 0.5 1.5 2.5 0.5 1.5 7 18.0 14.5 16.0 6.0 3.5 5.0 2.5 0.5 1.5 2.5 0.5 1.5 8 18.5 15.0 16.5 5.5 3.5 4.5 2.5 0.5 1.5 2.5 0.5 1.5 9 17.5 15.5 16.0 4.5 3.0 4.0 2.5 0.5 1.5 3.0 1.0 2.0 10 16.5 15.0 16.0 4.0 2.0 3.0 2.5 1.0 1.5 3.0 1.0 2.0 11 16.5 15.0 15.5 5.5 3.0 4.0 2.5 1.0 1.5 2.5 0.5 1.5 12 15.5 14.0 15.0 5.5 3.0 4.0 2.5 0.5 1.5 2.5 0.5 1.5 13 16.5 13.5 14.5 5.0 3.0 4.0 2.5 0.5 1.5 3.0 1.5 2.0 14 16.5 13.5 15.0 5.5 3.0 4.0 2.0 0.0 1.0 2.5 0.0 1.5 15 15.5 14.5 15.0 5.5 3.0 4.5 2.0 0.0 1.0 1.5 0.0 1.0 16 15.5 14.0 15.0 5.5 3.5 4.5 2.5 0.0 1.0 2.0 0.0 1.0 17 14.5 13.0 13.5 5.5 4.0 4.5 2.5 0.0 1.0 2.0 0.0 1.0 18 13.5 12.5 13.0 6.5 4.5 5.5 2.0 0.0 1.0 2.0 0.0 1.0 19 14.5 12.0 13.0 7.0 4.5 6.0 2.5 0.5 1.5 2.5 0.0 1.0 20 14.0 12.0 13.0 5.0 2.5 4.0 2.0 0.0 0.5 2.0 0.0 1.5 21 14.5 12.0 12.5 5.5 4.0 4.5 1.5 0.0 0.5 2.0 0.0 1.0 22 14.0 12.0 12.5 6.0 4.0 5.0 2.5 0.0 1.5 2.5 0.0 1.0 23 14.0 11.5 12.5 5.5 3.5 4.5 3.5 1.0 2.0 2.5 0.0 1.5 24 13.5 11.5 12.0 6.0 4.0 5.0 2.0 0.0 0.5 2.5 0.0 1.5 25 13.0 11.5 12.5 7.0 4.0 6.0 1.5 0.0 0.5 2.5 0.5 1.5 26 13.5 11.5 12.0 4.5 1.0 2.5 2.0 0.0 0.5 2.5 0.5 1.5 27 13.0 10.5 12.0 2.5 0.5 1.5 2.0 0.0 0.5 2.0 0.0 1.0 28 12.5 10.0 11.0 4.5 1.5 3.0 2.0 0.0 1.0 2.5 0.0 1.0 29 12.5 9.5 10.5 4.0 2.0 3.0 2.0 0.0 1.0 3.0 0.0 1.5 30 11.5 9.0 10.5 3.5 1.5 2.5 2.0 0.0 1.0 3.0 0.5 1.5 31 12.0 10.5 11.5 --- --- --- 3.0 0.5 1.5 3.0 0.5 1.5 MONTH 19.0 9.0 14.1 11.0 0.5 4.8 3.5 0.0 1.2 3.0 0.0 1.4 CONNECTICUT RIVER BASIN 113 01129200 CONNECTICUT RIVER BELOW INDIAN STREAM, NEAR PITTSBURG, NH—Continued TEMPERATURE, WATER, DEGREES CELSIUS—CONTINUED WATER YEAR OCTOBER 2004 TO SEPTEMBER 2005 DAY MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN FEBRUARY MARCH APRIL MAY 1 3.0 0.5 1.5 3.0 1.0 2.0 2.0 0.5 1.0 6.0 4.5 5.0 2 3.5 0.5 1.5 2.5 0.5 1.5 2.0 0.5 1.0 6.5 3.5 5.0 3 3.5 0.5 1.5 3.0 0.0 1.5 1.5 0.0 1.0 7.0 4.0 5.0 4 3.5 1.0 2.0 3.5 0.5 1.5 1.5 0.0 1.0 6.5 4.0 5.0 5 3.5 1.0 2.0 3.5 0.0 2.0 1.5 0.0 1.0 8.0 4.5 6.0 6 3.0 1.0 2.0 3.5 0.5 2.0 2.0 0.5 1.0 9.5 4.5 7.0 7 3.5 1.0 2.0 3.0 0.5 1.5 1.5 0.5 1.0 8.0 6.0 6.5 8 3.0 1.5 2.0 3.0 0.0 1.5 2.0 0.5 1.0 7.0 5.5 6.0 9 3.0 1.0 2.0 2.0 0.0 1.0 4.0 0.0 2.0 10.5 5.5 8.0 10 3.0 0.5 2.0 3.0 0.0 1.5 6.0 0.5 3.0 12.0 7.5 9.5 11 2.5 0.5 1.5 4.0 0.0 1.5 5.0 0.5 2.5 11.5 8.0 9.5 12 3.0 1.0 1.5 3.5 0.5 2.0 3.5 0.5 2.0 11.5 7.5 9.0 13 3.0 0.5 1.5 3.5 1.0 2.0 5.5 1.0 3.0 10.5 6.0 8.0 14 3.0 0.5 1.5 4.5 1.0 2.5 7.0 2.5 4.5 9.0 6.0 7.5 15 3.0 1.0 2.0 3.0 1.0 2.0 7.0 1.0 4.0 9.5 7.5 8.0 16 3.5 1.0 2.0 3.5 1.0 2.0 8.0 2.0 4.5 9.0 7.0 8.0 17 3.0 0.5 1.5 5.0 0.5 2.5 8.0 2.0 5.0 9.5 7.5 8.5 18 2.5 0.5 1.5 5.0 0.0 2.0 7.5 1.5 4.5 9.5 7.0 8.0 19 2.5 0.5 1.5 5.5 0.0 2.5 8.0 2.0 5.0 11.0 7.0 9.0 20 2.5 0.0 1.5 5.5 1.0 2.5 7.0 3.5 4.5 10.5 7.0 9.0 21 2.5 0.5 1.5 6.0 0.0 2.5 6.5 1.5 4.0 10.0 7.0 8.5 22 3.0 1.0 2.0 6.0 0.0 2.5 7.5 2.0 4.5 9.5 8.0 9.0 23 3.0 0.5 1.5 5.0 1.0 2.5 6.0 4.0 4.5 10.5 8.0 9.5 24 3.0 0.5 1.5 6.0 1.0 3.0 7.5 4.0 5.5 12.0 8.5 10.5 25 3.0 0.5 1.5 5.0 0.5 2.5 6.0 4.0 4.5 11.5 8.5 10.0 26 3.0 0.5 1.5 5.5 0.0 2.0 6.5 3.0 4.5 10.5 9.0 10.0 27 3.0 0.5 1.5 6.0 0.5 2.5 5.5 3.5 4.5 11.0 9.5 10.0 28 3.0 0.5 2.0 3.0 1.0 2.0 5.5 3.5 4.5 12.5 9.0 10.5 29 --- --- --- 4.0 1.0 2.5 5.5 3.5 4.5 12.0 9.5 10.5 30 --- --- --- 5.5 0.5 2.5 6.0 3.0 4.5 12.5 10.0 11.0 31 --- --- --- 4.0 0.5 2.0 --- --- --- 14.0 10.5 12.0 MONTH 3.5 0.0 1.7 6.0 0.0 2.1 8.0 0.0 3.3 14.0 3.5 8.4 JUNE JULY AUGUST SEPTEMBER 1 15.0 10.5 13.0 16.0 11.5 13.5 14.5 13.0 13.5 20.5 17.5 18.5 2 16.5 11.5 14.0 14.5 11.5 13.0 15.0 13.0 13.5 20.5 16.0 18.0 3 16.0 11.5 13.5 14.0 11.5 12.5 16.0 13.5 14.5 19.5 16.0 17.5 4 16.0 11.5 13.5 14.5 11.5 12.5 15.5 13.5 14.5 19.0 15.0 16.5 5 15.5 12.0 13.5 12.5 11.5 12.0 15.0 13.0 14.0 19.5 14.5 16.0 6 14.5 12.0 13.5 14.5 12.5 13.5 15.0 13.0 14.0 19.5 14.5 16.0 7 15.0 11.5 13.0 17.5 12.5 14.5 16.5 13.0 14.5 18.5 14.5 16.0 8 13.0 11.0 11.5 16.0 12.5 13.5 15.5 13.5 14.0 18.5 14.5 16.0 9 14.5 10.5 12.5 15.5 12.0 14.0 18.0 13.0 15.0 17.5 14.5 15.5 10 15.0 11.0 13.0 20.0 15.5 17.5 17.5 13.5 14.5 18.0 13.0 15.0 11 15.5 12.5 14.0 20.5 17.0 19.0 18.0 14.0 15.5 18.5 13.0 15.5 12 15.5 12.0 13.5 20.0 16.0 18.0 17.0 13.5 15.0 19.0 14.0 16.0 13 15.0 11.5 13.0 17.0 14.0 15.5 18.5 13.5 15.5 19.0 15.5 17.0 14 16.5 11.5 13.0 16.0 13.5 15.0 15.0 13.5 14.0 19.0 15.5 16.5 15 15.5 12.0 14.0 17.0 14.0 15.5 17.5 13.5 15.0 18.0 16.0 17.0 16 12.5 11.5 12.0 16.5 13.0 14.5 16.5 13.0 14.5 18.0 16.0 17.0 17 13.0 11.0 12.0