#
# U.S. Geological Survey
# National Water Information System
# Retrieved: 2025-03-11 21:52:46 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 06471065 ELM RIVER NEAR FREDERICK,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	06471065	2000-03-26		160	5	9.09						
USGS	06471065	2001-04-24		1550	5	13.58						
USGS	06471065	2002-03-28		3.30	5	5.58						
USGS	06471065	2003-03-14		12.0	5	5.72	2		2003-03-29		6.27	1
USGS	06471065	2003-10-09		7.70	5	5.80						
USGS	06471065	2005-06-09		2980	5	15.31						
USGS	06471065	2006-04-02		66.0	5	7.08						
USGS	06471065	2007-03-19		300	5	10.95	1					
USGS	06471065	2008-08-14		125	5	8.03						
USGS	06471065	2009-03-23		3810	5	15.98						
USGS	06471065	2010-03-15		3790	5	15.34						
USGS	06471065	2011-03-21		1600	5	13.50	2		2011-06-23		14.11	1
USGS	06471065	2012-05-11		23.0	5	6.07	2		2012-04-21		6.84	1
USGS	06471065	2013-09-09		16.0	5	5.81						
USGS	06471065	2014-06-21		628	5	12.08	1					
USGS	06471065	2015-05-13		1050	5	12.52						
USGS	06471065	2016-08-12		1240	5	13.96	1					
USGS	06471065	2017-02-18		1130	5	12.88						
USGS	06471065	2018-04-19	23:00	951	5	12.83						
USGS	06471065	2019-03-30	19:45	2450	2,5	15.86	1					
USGS	06471065	2020-07-25	13:00	7110	2,5	19.56	1					
USGS	06471065	2021-05-21	00:30	9.00	2,5	6.00	1					
USGS	06471065	2022-05-01	16:15	2050	5	13.97						
USGS	06471065	2023-04-14	05:00	1840	2,5	14.26	1