# # U.S. Geological Survey # National Water Information System # Retrieved: 2025-01-30 23:00:53 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 06809210 East Nishnabotna River near Atlantic, IA # # 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 06809210 1958-07-02 34200 7 22.49 USGS 06809210 1961-02-22 4120 13.08 USGS 06809210 1962-05-29 8310 14.34 USGS 06809210 1963-03-11 4090 11.50 2 1963-03-04 13.58 1 USGS 06809210 1964-06-22 15200 18.16 USGS 06809210 1965-03-01 20500 20.43 USGS 06809210 1966-06-12 14500 17.86 USGS 06809210 1967-06-12 8100 14.37 USGS 06809210 1968-06-30 560 7.20 USGS 06809210 1969-03-17 14100 17.65 USGS 06809210 1970-03-02 11000 16.00 USGS 06809210 1971-02-19 15200 17.35 6 USGS 06809210 1972-09-12 26700 22.81 USGS 06809210 1973-05-07 10400 14.63 USGS 06809210 1973-10-11 5720 11.65 USGS 06809210 1975-04-28 6480 12.20 USGS 06809210 1976-06-14 6680 12.34 USGS 06809210 1977-09-03 4230 10.29 USGS 06809210 1978-03-20 6440 12.25 USGS 06809210 1979-03-18 18500 18.42 USGS 06809210 1980-06-15 13500 16.50 USGS 06809210 1981-06-15 1650 7.21 USGS 06809210 1982-03-19 10300 11.99 2 1982-02-20 12.40 USGS 06809210 1983-02-19 3580 9.64 USGS 06809210 1984-04-30 12600 15.42 USGS 06809210 1985-02-21 5400 10.93 USGS 06809210 1986-05-10 7920 12.81 USGS 06809210 1986-10-11 9090 13.55 USGS 06809210 1988-06-08 2040 6.94 2 1988-01-30 9.73 1 USGS 06809210 1989-09-08 18800 17.95 USGS 06809210 1990-06-16 11900 14.54 USGS 06809210 1991-06-14 20100 18.39 USGS 06809210 1992-09-15 11800 15.16 USGS 06809210 1993-08-30 13100 17.34 USGS 06809210 1994-06-23 2640 8.10 2 1994-02-18 8.98 1 USGS 06809210 1995-05-28 2920 8.45 USGS 06809210 1996-07-17 12000 14.56 USGS 06809210 1997-02-18 12100 14.59 USGS 06809210 1998-06-15 41400 22.36 USGS 06809210 1999-07-09 11300 14.18 USGS 06809210 2000-06-26 1540 6.61 USGS 06809210 2001-03-14 5420 9.83 USGS 06809210 2002-08-23 3260 8.64 USGS 06809210 2003-05-05 4890 9.49 USGS 06809210 2004-05-23 17600 17.10 USGS 06809210 2005-05-13 11000 14.01 USGS 06809210 2006-09-17 10:30 5740 10.75 USGS 06809210 2007-05-06 27500 20.05 USGS 06809210 2008-06-12 19200 18.74 USGS 06809210 2009-04-27 9240 13.04 USGS 06809210 2010-06-27 12700 16.99 USGS 06809210 2011-06-10 4790 10.01 USGS 06809210 2012-04-15 6180 11.07 USGS 06809210 2013-06-24 10600 13.78 USGS 06809210 2014-06-30 14000 15.53 USGS 06809210 2015-06-15 10700 15.16 2 2015-06-15 1330 15.55 USGS 06809210 2015-12-14 11800 15.93 USGS 06809210 2017-08-21 8160 12.39 USGS 06809210 2018-06-11 11:30 4530 9.77 USGS 06809210 2019-03-14 08:45 17300 18.78 2 2019-03-14 0230 19.03 USGS 06809210 2019-10-11 01:15 5260 10.29 USGS 06809210 2021-07-11 07:30 1120 5.17 USGS 06809210 2022-06-15 13:45 4480 10.45 USGS 06809210 2023-02-27 12:30 4540 10.52 USGS 06809210 2024-05-21 23:00 7040 12.11