# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-12-18 00:33:31 EST # # ---------------------------------- WARNING ---------------------------------------- # Some of the data that you have obtained from this U.S. Geological Survey database # may not have received Director's approval. Any such data values are qualified # as provisional and are subject to revision. Provisional data are released on the # condition that neither the USGS nor the United States Government may be held liable # for any damages resulting from its use. # # More data may be available offline. # For more information on these data, contact USGS Water Data Inquiries. # This file contains the annual peak streamflow data. # # This information includes the following fields: # # agency_cd Agency Code # site_no USGS station number # peak_dt Date of peak streamflow (format YYYY-MM-DD) # peak_tm Time of peak streamflow (24 hour format, 00:00 - 23:59) # peak_va Annual peak streamflow value in cfs # peak_cd Peak Discharge-Qualification codes (see explanation below) # gage_ht Gage height for the associated peak streamflow in feet # gage_ht_cd Gage height qualification codes # year_last_pk Peak streamflow reported is the highest since this year # ag_dt Date of maximum gage-height for water year (if not concurrent with peak) # ag_tm Time of maximum gage-height for water year (if not concurrent with peak # ag_gage_ht maximum Gage height for water year in feet (if not concurrent with peak # ag_gage_ht_cd maximum Gage height code # # Sites in this file include: # USGS 01087000 BLACKWATER RIVER NEAR WEBSTER, NH # # Peak Streamflow-Qualification Codes(peak_cd): # 1 ... Discharge is a Maximum Daily Average # 2 ... Discharge is an Estimate # 3 ... Discharge affected by Dam Failure # 4 ... Discharge less than indicated value, # which is Minimum Recordable Discharge at this site # 5 ... Discharge affected to unknown degree by # Regulation or Diversion # 6 ... Discharge affected by Regulation or Diversion # 7 ... Discharge is an Historic Peak # 8 ... Discharge actually greater than indicated value # 9 ... Discharge due to Snowmelt, Hurricane, # Ice-Jam or Debris Dam breakup # A ... Year of occurrence is unknown or not exact # Bd ... Day of occurrence is unknown or not exact # Bm ... Month of occurrence is unknown or not exact # C ... All or part of the record affected by Urbanization, # Mining, Agricultural changes, Channelization, or other # F ... Peak supplied by another agency # O ... Opportunistic value not from systematic data collection # R ... Revised # # Gage height qualification codes(gage_ht_cd,ag_gage_ht_cd): # 1 ... Gage height affected by backwater # 2 ... Gage height not the maximum for the year # 3 ... Gage height at different site and(or) datum # 4 ... Gage height below minimum recordable elevation # 5 ... Gage height is an estimate # 6 ... Gage datum changed during this year # 7 ... Debris, mud, or hyper-concentrated flow # 8 ... Gage height tidally affected # Bd ... Day of occurrence is unknown or not exact # Bm ... Month of occurrence is unknown or not exact # F ... Peak supplied by another agency # R ... Revised # # agency_cd site_no peak_dt peak_tm peak_va peak_cd gage_ht gage_ht_cd year_last_pk ag_dt ag_tm ag_gage_ht ag_gage_ht_cd 5s 15s 10d 6s 8s 33s 8s 27s 4s 10d 6s 8s 27s USGS 01087000 1919-03-30 2480 14.50 USGS 01087000 1920-03-28 2850 16.00 USGS 01087000 1927-03-18 1790 11.60 USGS 01087000 1927-11-06 2700 15.40 USGS 01087000 1929-03-25 1680 11.10 USGS 01087000 1930-03-11 1360 9.50 USGS 01087000 1931-04-13 1560 10.50 USGS 01087000 1932-04-14 2080 12.90 USGS 01087000 1933-04-20 2950 16.40 USGS 01087000 1934-04-14 2950 16.40 USGS 01087000 1935-01-12 1850 USGS 01087000 1936-03-19 11000 11.78 USGS 01087000 1937-05-16 2410 7.23 USGS 01087000 1938-09-22 6880 10.47 USGS 01087000 1939-04-21 2230 7.01 USGS 01087000 1940-05-04 2180 6.96 USGS 01087000 1941-02-10 1040 6 5.39 USGS 01087000 1942-06-18 1930 6 6.66 USGS 01087000 1943-04-30 1580 6 6.20 USGS 01087000 1944-04-28 1610 6 6.24 USGS 01087000 1945-04-01 1830 6 6.53 USGS 01087000 1946-03-18 1390 6 5.96 USGS 01087000 1947-04-14 1400 6 5.95 USGS 01087000 1948-03-25 1250 6 5.73 USGS 01087000 1949-01-02 1140 6 5.60 1 USGS 01087000 1950-04-07 1340 6 5.89 USGS 01087000 1951-04-16 2390 6 7.18 USGS 01087000 1952-04-10 2390 6 7.18 USGS 01087000 1953-04-04 2320 6 7.10 USGS 01087000 1954-05-14 2100 6 6.85 USGS 01087000 1955-08-16 1320 6 5.86 USGS 01087000 1956-05-04 2130 6 6.89 USGS 01087000 1957-01-25 480 6 4.30 USGS 01087000 1958-04-25 2150 6 USGS 01087000 1959-04-06 2220 6 7.05 USGS 01087000 1960-04-09 2220 6 7.06 USGS 01087000 1961-04-25 1310 6 5.92 USGS 01087000 1962-04-04 2270 6 7.11 USGS 01087000 1963-04-04 1530 6 6.23 USGS 01087000 1964-04-19 1910 6 6.70 USGS 01087000 1965-04-18 934 6 5.27 USGS 01087000 1966-03-27 1050 6 5.49 USGS 01087000 1967-04-07 1490 6 6.17 USGS 01087000 1968-03-29 1860 6 6.64 USGS 01087000 1969-04-30 2220 6 7.05 USGS 01087000 1970-02-13 1660 6 6.39 USGS 01087000 1971-05-06 1540 6 6.24 USGS 01087000 1972-04-21 1650 6 6.37 USGS 01087000 1973-04-06 1920 6 6.71 USGS 01087000 1974-04-16 1370 6 6.00 USGS 01087000 1975-04-22 1690 6 6.43 USGS 01087000 1976-04-05 1880 6 6.66 USGS 01087000 1977-03-22 2010 6 6.82 USGS 01087000 1977-10-19 1500 6 6.18 USGS 01087000 1979-03-28 1990 6 6.79 USGS 01087000 1980-04-12 1740 6 6.50 USGS 01087000 1981-02-25 1820 6 6.59 USGS 01087000 1982-04-21 1900 6 6.69 USGS 01087000 1983-03-24 1680 6 6.42 USGS 01087000 1983-12-16 1970 6 6.77 USGS 01087000 1985-03-14 1010 6 5.41 USGS 01087000 1986-04-02 1600 6 USGS 01087000 1987-04-16 2180 6 7.01 USGS 01087000 1988-05-01 1500 6 6.19 USGS 01087000 1989-05-04 1640 6 6.37 USGS 01087000 1990-03-22 1970 6 6.77 USGS 01087000 1990-11-12 1400 6 6.04 USGS 01087000 1992-03-13 1130 6 5.62 USGS 01087000 1993-04-16 2110 6 6.93 USGS 01087000 1994-04-15 1810 6 6.58 USGS 01087000 1994-12-28 1340 6 5.95 USGS 01087000 1996-04-25 2200 6 7.03 USGS 01087000 1996-10-25 2220 6 7.06 USGS 01087000 1998-04-07 2030 6 6.84 USGS 01087000 1999-09-19 1730 6 6.40 USGS 01087000 2000-04-11 2080 6 6.84 USGS 01087000 2001-05-03 1990 6 6.73 USGS 01087000 2002-05-15 1100 6 5.44 USGS 01087000 2003-04-01 1860 6 6.57 USGS 01087000 2004-04-05 1540 6 6.13 USGS 01087000 2005-04-06 2070 6 6.83 USGS 01087000 2006-05-31 2050 6 6.98 USGS 01087000 2007-04-25 1950 6 6.87 USGS 01087000 2008-04-21 1810 6 6.70 USGS 01087000 2009-04-08 1890 6 6.81 USGS 01087000 2010-03-25 1780 6 6.67 USGS 01087000 2011-08-30 2040 6 6.89 USGS 01087000 2011-12-09 20:15 1300 6 5.85 USGS 01087000 2012-12-23 1450 6 6.09 USGS 01087000 2014-04-17 1840 6 6.64 USGS 01087000 2015-04-16 1710 6 6.47 USGS 01087000 2016-02-27 1500 6 6.17