# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-12-12 10:49:00 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 06479215 BIG SIOUX RIVER NEAR FLORENCE,SD # # 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 06479215 1984-06-15 194 8.05 USGS 06479215 1985-03-20 268 7.72 2 1985-03-16 8.33 1 USGS 06479215 1986-03-29 1810 9.08 USGS 06479215 1987-03-25 177 7.51 USGS 06479215 1988-02-28 14.0 2 5.62 1 USGS 06479215 1989-03-27 500 2 8.34 1 USGS 06479215 1990-05-23 21.0 4.79 2 1990-03-10 5.12 1 USGS 06479215 1991-08-02 287 8.16 USGS 06479215 1992-06-30 268 7.72 USGS 06479215 1993-07-25 1280 9.18 USGS 06479215 1994-03-19 1140 8.79 USGS 06479215 1995-03-11 1200 9.02 1 USGS 06479215 1995-10-28 387 7.94 2 1996-03-12 8.90 1 USGS 06479215 1997-04-04 2000 9.32 2 1997-04-02 9.52 1 USGS 06479215 1998-05-16 528 8.12 2 1998-02-26 8.23 1 USGS 06479215 1998-10-17 134 6.55 USGS 06479215 2000-04-22 20.0 3.29 USGS 06479215 2001-04-07 1200 9.07 1 USGS 06479215 2002-03-29 110 7.10 1 USGS 06479215 2003-03-17 100 7.29 1 USGS 06479215 2004-07-10 54.0 4.78 USGS 06479215 2005-06-08 104 7.48 USGS 06479215 2006-03-30 131 6.60 USGS 06479215 2007-03-21 450 8.01 1 USGS 06479215 2008-06-11 738 8.36 USGS 06479215 2009-03-17 650 8.50 1 USGS 06479215 2010-03-17 500 8.24 1,2 2010-03-18 8.29 1 USGS 06479215 2011-04-04 850 8.45 1 USGS 06479215 2012-04-18 43.0 4.21 USGS 06479215 2013-04-28 200 7.32 1,2 2013-04-26 7.55 1 USGS 06479215 2014-06-19 272 8.01 1 USGS 06479215 2015-03-11 70.0 5.67 1,2 2015-03-09 6.36 1 USGS 06479215 2016-04-26 39.0 4.09 2 2016-02-20 4.58 1 USGS 06479215 2017-02-22 96.0 6.37 1,2 2017-02-18 6.94 1 USGS 06479215 2018-04-21 05:59 499 2 8.25 1,2 2018-04-20 0200 8.36 1 USGS 06479215 2019-03-27 22:02 997 2 8.95 1 USGS 06479215 2020-05-05 18:30 191 6.89 2 2019-10-22 0615 7.37 1 USGS 06479215 2021-04-09 16:00 66.3 4.92 USGS 06479215 2022-03-16 16:00 220 2 7.49 1 USGS 06479215 2023-04-13 04:30 2480 9.70 1