# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-06-04 05:32:08 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 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 02330450 CHATTAHOOCHEE RIVER AT HELEN, 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 02330450 1964-10-04 4100 2,7 USGS 02330450 1967-08-23 10500 2,7 USGS 02330450 1973-05-28 10000 2,7 USGS 02330450 1981-05-27 1280 3.50 USGS 02330450 1982-02-03 1750 4.19 USGS 02330450 1983-02-02 3260 5.54 USGS 02330450 1984-03-20 1410 3.69 USGS 02330450 1985-08-17 755 2.51 USGS 02330450 1985-11-01 803 2.61 USGS 02330450 1987-02-28 1520 3.87 USGS 02330450 1988-01-20 1420 3.71 USGS 02330450 1989-06-20 1170 3.29 USGS 02330450 1990-03-17 3850 5.94 USGS 02330450 1991-03-29 2950 5.33 USGS 02330450 1992-08-28 2590 5.07 USGS 02330450 1992-11-02 1430 3.73 USGS 02330450 1994-06-27 3430 5.66 USGS 02330450 1995-02-16 1200 3.33 USGS 02330450 1996-01-26 2940 5.32 USGS 02330450 1996-12-01 09:45 3460 5.68 USGS 02330450 1998-01-07 20:00 3760 5.88 USGS 02330450 1999-07-11 15:45 1150 3.25 USGS 02330450 2000-04-03 03:45 1140 3.23 USGS 02330450 2000-11-09 14:30 905 2.81 USGS 02330450 2002-09-27 08:45 838 2.68 USGS 02330450 2003-07-01 23:45 1910 4.39 USGS 02330450 2004-09-16 21:45 5260 6.75 USGS 02330450 2005-06-12 12:30 2580 5.06 USGS 02330450 2006-01-17 20:30 980 2.95 USGS 02330450 2006-12-31 23:15 1360 3.61 USGS 02330450 2008-08-26 13:30 4070 6.01 USGS 02330450 2008-12-11 14:00 1700 4.19 USGS 02330450 2010-08-21 13:00 2250 4.81 USGS 02330450 2010-11-30 19:15 1420 3.79 USGS 02330450 2011-11-28 18:00 1420 3.79 USGS 02330450 2012-10-02 03:00 3790 5.88 USGS 02330450 2013-11-26 16:30 1280 3.54 USGS 02330450 2015-04-19 16:45 1870 4.40 USGS 02330450 2015-12-28 23:45 3460 5.70 USGS 02330450 2017-01-22 556 2.12 USGS 02330450 2018-05-30 02:15 5120 6.44 USGS 02330450 2019-04-19 13:15 1710 4.20 USGS 02330450 2020-02-06 12:44 2660 2,R 4.33 USGS 02330450 2021-08-17 14:45 4510 7.14 USGS 02330450 2022-02-03 23:30 1660 4.03 USGS 02330450 2023-01-04 09:00 984 2.99