# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-11-23 09:36:22 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 02034000 RIVANNA RIVER AT PALMYRA, VA # # 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 02034000 1934-09-17 24000 24.75 3 USGS 02034000 1935-09-06 29000 26.27 3 USGS 02034000 1936-03-18 39900 29.26 3 USGS 02034000 1937-04-26 56700 33.35 3 USGS 02034000 1937-10-20 20000 23.45 3 USGS 02034000 1939-02-11 6800 13.75 3 USGS 02034000 1940-08-17 16300 21.78 3 USGS 02034000 1941-04-06 7560 14.87 3 USGS 02034000 1942-08-09 11400 18.59 3 USGS 02034000 1942-10-16 78000 36.50 3 USGS 02034000 1944-09-19 39600 30.50 3 USGS 02034000 1945-09-18 8270 15.38 3 USGS 02034000 1946-03-20 4940 10.00 3 USGS 02034000 1947-03-14 6140 11.50 3 USGS 02034000 1948-08-04 19800 22.90 USGS 02034000 1948-12-04 28800 26.78 USGS 02034000 1950-09-14 8060 15.02 USGS 02034000 1950-12-05 17000 21.55 USGS 02034000 1952-03-12 11400 17.80 USGS 02034000 1952-11-20 9800 16.23 USGS 02034000 1954-03-02 9800 16.24 USGS 02034000 1955-08-19 34800 29.00 USGS 02034000 1956-07-21 4400 8.95 USGS 02034000 1957-04-06 7930 14.15 USGS 02034000 1958-03-31 7670 13.91 USGS 02034000 1959-06-03 9900 15.78 USGS 02034000 1959-10-01 15700 20.41 USGS 02034000 1961-04-13 12100 17.83 USGS 02034000 1961-10-21 22900 24.27 USGS 02034000 1963-03-12 13100 18.63 USGS 02034000 1964-01-09 4780 9.45 USGS 02034000 1965-02-08 18000 5 21.77 USGS 02034000 1966-02-14 9010 5 14.92 USGS 02034000 1967-03-08 12800 5 18.41 USGS 02034000 1968-01-14 7660 5 13.40 USGS 02034000 1969-08-20 86000 5 39.85 USGS 02034000 1970-04-03 6920 5 12.53 USGS 02034000 1971-05-31 21000 5 23.39 USGS 02034000 1972-06-22 73400 5 37.34 USGS 02034000 1972-10-06 45800 5 31.07 USGS 02034000 1973-12-21 14900 5 20.32 USGS 02034000 1975-03-20 28100 5 26.38 USGS 02034000 1976-01-01 13200 5 18.99 USGS 02034000 1976-10-10 18100 5 22.41 USGS 02034000 1978-01-26 20800 5 23.51 USGS 02034000 1979-09-06 25800 5 25.50 USGS 02034000 1980-04-09 11000 5 17.19 USGS 02034000 1981-02-20 4700 5 9.57 USGS 02034000 1982-06-14 13800 5 19.53 USGS 02034000 1983-04-03 17300 5 22.02 USGS 02034000 1984-02-15 22800 5 24.42 USGS 02034000 1985-08-19 12900 5 19.57 USGS 02034000 1985-11-05 31800 5 26.53 USGS 02034000 1987-09-09 32200 5 26.65 USGS 02034000 1987-11-30 10300 5 16.92 USGS 02034000 1989-05-06 31100 5 26.33 USGS 02034000 1990-05-27 12700 5 18.73 USGS 02034000 1990-10-24 18500 5 21.94 USGS 02034000 1992-04-22 23200 5 23.77 USGS 02034000 1993-03-05 30800 5 26.25 USGS 02034000 1993-11-28 19800 5 22.48 USGS 02034000 1995-06-29 13700 5 19.36 USGS 02034000 1996-09-07 50900 5 31.54 USGS 02034000 1997-07-24 8460 5 14.74 USGS 02034000 1998-02-18 23800 5 23.96 USGS 02034000 1999-09-30 22700 5 23.31 USGS 02034000 2000-09-04 6280 5 10.85 USGS 02034000 2001-03-30 7680 5 12.57 USGS 02034000 2002-04-22 2740 5 6.38 USGS 02034000 2003-09-19 30000 5 25.91 USGS 02034000 2003-12-11 14400 5 19.59 USGS 02034000 2005-01-14 16800 5 20.78 USGS 02034000 2005-11-30 14300 5 19.53 USGS 02034000 2006-10-07 13500 5 19.09 USGS 02034000 2008-05-09 8870 5 13.84 USGS 02034000 2009-05-07 7220 5 11.74 USGS 02034000 2010-01-26 23300 5 23.52 USGS 02034000 2011-04-17 14600 5 19.71 USGS 02034000 2011-12-08 14100 5 19.46 USGS 02034000 2013-01-31 13900 5 19.33 USGS 02034000 2014-05-16 26500 5 24.72 USGS 02034000 2015-04-20 12000 5 17.78 USGS 02034000 2016-02-25 9620 5 14.80 USGS 02034000 2017-05-06 01:15 12000 5 17.83 USGS 02034000 2018-06-01 00:30 28700 5 25.51 USGS 02034000 2018-10-12 02:05 14600 5 19.97 USGS 02034000 2020-04-14 02:10 11500 5 17.37 USGS 02034000 2020-11-12 22:00 21100 5 22.88 USGS 02034000 2021-10-30 01:50 5610 5 9.86 USGS 02034000 2022-12-23 14:35 8990 5 14.28