# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-11-30 16:51:53 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 06479520 BIG SIOUX RIVER BELOW WATERTOWN, 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 06479520 1995-03-12 1600 5 11.74 1 USGS 06479520 1996-03-13 950 5 11.78 1 USGS 06479520 1997-04-11 6700 5 12.99 2 1997-04-02 13.13 1 USGS 06479520 1998-02-23 880 5 10.17 1 USGS 06479520 1999-06-10 368 5 7.21 2 1999-02-12 7.91 1 USGS 06479520 2000-06-26 100 2,5 2000-02-25 5.65 1 USGS 06479520 2001-04-08 4000 5 12.69 1 USGS 06479520 2002-08-21 800 5 10.76 1 USGS 06479520 2003-03-18 600 5 9.18 1,2 2003-03-15 9.41 1 USGS 06479520 2004-09-23 146 5 5.71 2 2004-03-10 7.36 1 USGS 06479520 2005-06-15 277 5 7.14 USGS 06479520 2006-04-01 363 5 7.05 2 2006-03-13 7.39 1 USGS 06479520 2007-03-19 1300 5 10.52 1,2 2007-03-14 11.69 1 USGS 06479520 2008-06-12 477 5 7.96 2 2008-02-10 8.52 1 USGS 06479520 2009-03-23 1860 5 11.37 2 2009-03-17 12.10 1 USGS 06479520 2010-03-18 1460 5 11.07 2 2010-03-15 12.29 1 USGS 06479520 2011-04-11 1800 5 11.76 2 2011-03-23 12.56 1 USGS 06479520 2012-06-21 336 5 6.98 USGS 06479520 2013-04-28 510 5 7.80 2 2013-03-16 8.90 1 USGS 06479520 2014-06-22 329 5 7.06 2 2014-03-15 9.52 1 USGS 06479520 2015-03-13 300 2,5 8.83 1,2 2015-03-10 8.85 1 USGS 06479520 2016-08-12 410 2,5 7.89 USGS 06479520 2017-02-19 650 5 9.60 1 USGS 06479520 2018-04-22 13:01 1820 5 11.49 USGS 06479520 2019-03-28 05:30 2560 5 12.31 2 2019-03-25 1300 12.67 1 USGS 06479520 2020-04-02 22:45 713 5 8.79 2 2019-11-13 0800 9.49 1 USGS 06479520 2021-04-10 00:45 390 5 7.30 USGS 06479520 2022-05-31 20:30 1180 5 10.31 USGS 06479520 2023-04-12 11:45 2540 5 12.26