# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-12-22 01:30:10 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 02224940 ALTAMAHA RIVER AT US 221, NR CHARLOTTEVILLE, GA # # 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 02224940 1920-04-07 42200 1 17.70 3 USGS 02224940 1921-02-20 35400 1 16.30 3 USGS 02224940 1922-03-16 74000 1 21.90 3 USGS 02224940 1923-06-08 54000 1 19.60 3 USGS 02224940 1923-10-03 49900 1 19.00 3 USGS 02224940 1925-01-22 210000 1 29.00 3 1800 USGS 02224940 1926-04-10 28200 1 14.50 3 USGS 02224940 1927-08-02 20300 1 11.50 3 USGS 02224940 1928-08-22 113000 1 24.70 3 USGS 02224940 1929-03-11 149000 1 26.30 USGS 02224940 1929-10-09 115000 1 24.80 3 USGS 02224940 1931-05-14 30200 1 15.00 3 USGS 02224940 1932-01-17 31800 1 15.40 3 USGS 02224940 1933-03-02 36700 1 16.60 3 USGS 02224940 1934-03-14 36200 1 16.50 3 USGS 02224940 1935-03-23 20800 1 11.70 3 USGS 02224940 1936-04-16 160000 1 27.50 3 USGS 02224940 1937-05-10 41200 1 17.50 3 USGS 02224940 1938-04-17 60000 1 20.40 3 USGS 02224940 1939-03-09 82000 1 22.60 3 USGS 02224940 1940-02-29 29000 1 14.70 3 USGS 02224940 1941-07-24 21500 1 12.00 3 USGS 02224940 1942-03-31 91000 1 23.30 3 USGS 02224940 1943-03-30 71000 1 21.60 3 USGS 02224940 1944-03-30 108000 1 24.40 3 USGS 02224940 1945-05-08 33800 1 15.90 3 USGS 02224940 1946-01-20 53300 1 19.50 3 USGS 02224940 1947-03-18 58400 1 20.20 3 USGS 02224940 1948-04-05 70000 1 21.50 3 USGS 02224940 1948-12-08 130000 1 25.80 3 USGS 02224940 1950-03-21 20800 1 11.70 3 USGS 02224940 1951-04-01 20300 1 11.50 3 USGS 02224940 1952-03-15 60800 1 20.50 3 USGS 02224940 1953-05-13 60000 1 20.40 3 USGS 02224940 1953-12-27 30600 1 15.10 3 USGS 02224940 1955-04-23 20100 1 11.40 3 USGS 02224940 1956-03-30 30200 1 15.00 USGS 02224940 1957-04-08 27300 1 14.20 USGS 02224940 1958-03-19 46900 1 18.50 USGS 02224940 1959-03-16 35800 1 16.40 USGS 02224940 1960-04-10 78400 1 22.30 USGS 02224940 1961-03-07 80800 1 22.50 USGS 02224940 1962-03-09 46900 1 18.50 USGS 02224940 1963-02-01 48700 1 18.80 USGS 02224940 1964-04-17 78400 1 22.30 USGS 02224940 1965-01-05 57600 1 20.10 USGS 02224940 1966-03-11 98500 1 23.80 USGS 02224940 1967-01-13 39200 1 17.10 USGS 02224940 1968-01-21 24100 13.05 USGS 02224940 1969-05-01 31800 15.40 USGS 02224940 1970-04-03 70000 21.50 USGS 02224940 1971-03-13 105000 24.25 USGS 02224940 1972-01-22 64800 20.95 USGS 02224940 1973-04-12 51900 19.30 USGS 02224940 1974-02-17 43900 18.00 USGS 02224940 1975-03-25 91000 23.30 USGS 02224940 1976-03-28 52700 19.42 USGS 02224940 1977-04-01 45700 18.30 USGS 02224940 1978-02-04 79600 22.40 USGS 02224940 1979-03-06 76000 22.10 USGS 02224940 1980-03-21 84400 22.80 USGS 02224940 1981-02-21 31800 15.40 USGS 02224940 1982-02-15 41200 17.50 USGS 02224940 1983-04-19 56800 20.00 USGS 02224940 1984-03-09 41200 17.50 USGS 02224940 1985-02-16 38700 17.00 USGS 02224940 1986-02-13 22300 12.10 USGS 02224940 1987-02-27 52000 18.90 USGS 02224940 1988-06-02 17900 10.28 USGS 02224940 1989-04-23 27600 14.31 USGS 02224940 1990-03-28 58800 20.25 USGS 02224940 1991-03-10 55400 19.80 USGS 02224940 1992-02-28 37200 16.70 USGS 02224940 1993-01-15 60000 20.40 USGS 02224940 1994-07-16 91000 23.30 USGS 02224940 1995-02-27 74000 21.90 USGS 02224940 2009-04-08 21:00 118000 22.81 USGS 02224940 2009-12-21 12:00 71300 19.59 USGS 02224940 2011-02-15 08:30 27000 13.24 USGS 02224940 2012-03-08 01:45 9640 6.31 USGS 02224940 2013-02-28 22:15 54400 17.91 USGS 02224940 2014-04-21 18:30 44300 16.72 USGS 02224940 2015-05-01 05:45 37600 15.75 USGS 02224940 2016-01-06 14:15 97800 23.08 USGS 02224940 2017-01-31 33000 14.07 USGS 02224940 2018-06-07 22:15 23700 12.16 USGS 02224940 2019-01-13 18:00 62200 18.91 USGS 02224940 2020-02-27 18:45 92200 22.49 USGS 02224940 2021-02-21 02:45 52300 17.72 USGS 02224940 2022-04-16 17:00 62500 18.94 USGS 02224940 2023-04-06 12:00 64000 19.14