# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-03-28 19:21:39 EDT # # ---------------------------------- 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 Georgia 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 02336490 CHATTAHOOCHEE RIVER AT GA 280, NEAR ATLANTA, 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 02336490 1961-02-25 34000 2,6,7 USGS 02336490 1972-01-10 26000 2,6 USGS 02336490 1973-03-17 22000 6 24.46 USGS 02336490 1974-01-01 22000 6 24.45 USGS 02336490 1975-03-13 25400 6 26.42 USGS 02336490 1976-03-16 26800 6 27.41 USGS 02336490 1977-03-30 25700 6 26.77 USGS 02336490 1979-04-13 32000 6,7 30.71 USGS 02336490 1982-02-03 28300 6 28.91 USGS 02336490 1983-04-08 22500 6 24.66 USGS 02336490 1983-12-06 22400 6 24.74 USGS 02336490 1985-08-17 15000 6 19.17 USGS 02336490 1985-10-01 10200 6 14.89 USGS 02336490 1987-01-19 20800 6 23.47 USGS 02336490 1988-01-20 13900 6 18.26 USGS 02336490 1989-07-17 14900 6 19.09 USGS 02336490 1990-03-17 33300 6 31.51 USGS 02336490 1991-09-02 16000 6 20.01 USGS 02336490 1992-08-22 15900 6 19.94 USGS 02336490 1992-12-17 23400 6 24.68 USGS 02336490 1994-06-27 17200 6 20.90 USGS 02336490 1995-02-17 20500 6 23.29 USGS 02336490 1995-10-05 28500 6 28.73 USGS 02336490 1997-09-25 17:45 22300 6 24.50 USGS 02336490 1998-03-08 17:30 27700 6 28.18 USGS 02336490 1999-01-23 13:45 8590 6 13.30 USGS 02336490 2000-09-01 12:30 19800 6 22.79 USGS 02336490 2001-03-15 10:45 14300 6 18.62 USGS 02336490 2002-05-04 16:30 19100 6 22.29 USGS 02336490 2003-05-06 23:00 23300 6 25.22 USGS 02336490 2004-09-17 07:15 31000 6 30.29 USGS 02336490 2005-07-11 13:45 27300 6 27.94 USGS 02336490 2006-01-23 22:00 14200 6 18.52 USGS 02336490 2006-11-16 14900 6 19.09 USGS 02336490 2008-08-26 14:00 9810 6 14.51 USGS 02336490 2009-09-21 42300 6 35.98 USGS 02336490 2009-11-11 08:30 27200 6 27.86 USGS 02336490 2011-03-28 13:50 12700 6 17.18 USGS 02336490 2012-03-03 10:30 12900 6 17.33 USGS 02336490 2013-05-05 09:00 20100 6 22.99 USGS 02336490 2014-04-07 16:45 21100 6 23.73 USGS 02336490 2015-01-04 13:15 15500 6 19.56 USGS 02336490 2015-12-24 19700 6 22.71 USGS 02336490 2017-04-05 17500 6 21.10 USGS 02336490 2018-02-04 12:15 13300 6 16.25 USGS 02336490 2018-12-28 14:30 28200 6 27.52 USGS 02336490 2020-09-17 12:45 24900 6 24.82 USGS 02336490 2020-10-11 08:00 28200 6 27.46 USGS 02336490 2021-12-30 10:45 20100 6 21.18 USGS 02336490 2023-01-04 13:45 23000 6 23.94