# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-04-24 13:24:06 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 05586100 ILLINOIS RIVER AT VALLEY CITY, IL # # 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 05586100 1921-05-05 34800 5 14.60 3 USGS 05586100 1922-04-20 93100 5 25.10 3 USGS 05586100 1923-03-28 38300 5 15.40 3 USGS 05586100 1924-07-04 55400 5 19.10 3 USGS 05586100 1925-03-28 38600 5 15.40 3 USGS 05586100 1926-09-19 71200 5 22.20 3 USGS 05586100 1926-10-09 105000 2,5 1926-10-12 26.20 USGS 05586100 1927-12-15 59200 5 19.20 3 USGS 05586100 1929-04-16 63300 2,5 1929-04-06 21.20 USGS 05586100 1930-03-05 48000 5 18.00 3 USGS 05586100 1931-06-15 23300 5 11.50 3 USGS 05586100 1932-01-26 36000 5 15.00 3 USGS 05586100 1933-05-23 90800 5 25.50 3 USGS 05586100 1934-04-08 15800 5 9.40 3 USGS 05586100 1935-05-18 70800 2,5 1935-05-17 22.40 USGS 05586100 1936-03-05 57300 5 19.80 3 USGS 05586100 1937-05-10 46400 5 17.30 3 USGS 05586100 1938-04-16 68600 5 21.80 3 USGS 05586100 1939-03-22 69500 5 18.08 2,3 1939-03-21 18.27 3 USGS 05586100 1940-03-08 25600 1,5 1940-03-09 8.25 3 USGS 05586100 1941-06-17 26000 1,5 1941-06-18 8.58 3 USGS 05586100 1942-02-17 73600 1,5 1942-02-17 1200 19.45 3 USGS 05586100 1943-05-26 123000 5 28.61 3 USGS 05586100 1944-04-29 102000 5 24.86 2,3 1944-05-01 25.22 3 USGS 05586100 1945-05-24 62800 5 18.07 2,3 1945-05-24 1200 18.09 3 USGS 05586100 1946-01-14 66000 5 18.88 2,3 1946-01-15 18.94 3 USGS 05586100 1947-06-11 68300 5 20.15 2,3 1947-06-14 20.68 3 USGS 05586100 1948-04-01 73600 5 20.59 2,3 1948-03-31 20.70 3 USGS 05586100 1949-02-27 59800 5 16.91 3 USGS 05586100 1950-05-02 77200 5 20.43 2,3 1950-05-03 20.48 3 USGS 05586100 1951-02-28 77800 5 20.15 3 USGS 05586100 1952-04-25 55700 5 17.48 2,3 1952-04-29 17.94 3 USGS 05586100 1953-04-07 35200 5 11.78 2,3 1953-04-05 11.93 3 USGS 05586100 1954-04-24 33300 5 11.07 2,3 1954-04-25 11.10 3 USGS 05586100 1955-02-27 37700 5 11.87 2,3 1955-02-26 11.89 3 USGS 05586100 1956-06-02 29700 5 9.53 3 USGS 05586100 1957-05-06 66300 5 18.21 3 USGS 05586100 1958-06-22 60800 5 15.97 2,3 1958-06-23 16.02 3 USGS 05586100 1959-02-19 64300 5 18.01 2,3 1959-02-20 18.12 3 USGS 05586100 1960-04-07 73000 5 20.88 2,3 1960-04-08 20.95 3 USGS 05586100 1961-05-16 53000 5 15.73 3 USGS 05586100 1962-03-29 91100 5 22.27 3 USGS 05586100 1963-03-09 41100 5 13.44 3 USGS 05586100 1964-04-27 48700 5 14.51 2,3 1964-05-01 14.54 3 USGS 05586100 1965-04-18 55000 5 17.62 2,3 1965-04-18 1200 17.65 3 USGS 05586100 1966-05-25 65600 5 17.93 2,3 1966-05-25 1200 17.95 3 USGS 05586100 1967-04-10 48600 5 14.69 2,3 1967-04-11 14.71 3 USGS 05586100 1968-02-11 66900 5 18.23 2,3 1968-02-11 1200 18.27 3 USGS 05586100 1969-02-09 62900 5 17.62 2,3 1969-02-09 1200 17.67 3 USGS 05586100 1970-05-22 94800 5 22.57 3 USGS 05586100 1970-10-01 61400 5 17.43 3 USGS 05586100 1972-05-01 51200 5 15.67 2,3 1972-05-01 1200 15.71 3 USGS 05586100 1973-05-02 102000 5 26.25 2,3 1973-04-29 26.75 3 USGS 05586100 1974-06-29 110000 5 24.84 3 USGS 05586100 1975-03-04 55100 5 16.46 3 USGS 05586100 1976-03-13 80600 5 20.63 2,3 1976-03-15 20.64 3 USGS 05586100 1977-05-12 45900 5 13.81 2,3 1977-05-07 13.81 3 USGS 05586100 1978-05-20 72600 5 19.85 3 USGS 05586100 1979-04-19 111000 5 27.28 3 USGS 05586100 1980-06-07 76900 5 16.95 2,3 1980-06-11 17.84 1,3 USGS 05586100 1981-05-24 75500 5 20.95 3 USGS 05586100 1982-03-24 104000 5 25.56 3 USGS 05586100 1982-12-12 112000 5 26.40 3 USGS 05586100 1984-03-28 76800 5 21.60 2,3 1984-03-29 21.69 1,3 USGS 05586100 1985-03-10 122000 5 27.62 3 USGS 05586100 1985-11-27 96800 5 24.85 3 USGS 05586100 1986-10-11 69600 5 21.60 3 USGS 05586100 1988-04-14 41800 5 13.84 3 USGS 05586100 1989-09-18 32800 5 10.80 3 USGS 05586100 1990-06-27 76500 5 18.90 USGS 05586100 1991-05-31 67400 5 16.77 2 1991-05-06 17.14 USGS 05586100 1992-08-03 38400 5 10.83 USGS 05586100 1993-08-01 92400 5 25.00 2 1993-07-27 25.95 USGS 05586100 1994-04-22 74800 5 17.46 2 1993-10-01 20.06 USGS 05586100 1995-05-31 109000 5 26.45 2 1995-05-30 26.56 USGS 05586100 1996-06-07 83800 5 21.45 2 1996-06-05 21.56 USGS 05586100 1997-03-06 88400 5 21.07 2 1997-03-07 21.10 USGS 05586100 1998-05-16 77400 5 19.21 2 1998-05-17 19.27 USGS 05586100 1999-02-04 62400 5 15.37 2 1999-05-03 17.55 1 USGS 05586100 2000-06-30 43800 5 12.74 2 2000-06-29 12.86 1 USGS 05586100 2001-03-04 74600 5 18.33 2 2001-03-02 18.49 1 USGS 05586100 2002-05-19 106000 5 25.52 2 2002-05-19 1200 25.56 1 USGS 05586100 2003-05-17 41800 5 11.29 2 2003-07-18 11.55 1 USGS 05586100 2004-06-21 51700 5 14.06 2 2004-06-21 1200 14.08 1 USGS 05586100 2005-01-20 93500 5 21.17 2 2005-01-21 21.30 1 USGS 05586100 2006-04-10 35600 5 9.46 2 2006-04-11 9.55 1 USGS 05586100 2007-04-03 69900 5 17.24 2 2007-04-04 17.38 1 USGS 05586100 2008-09-24 92200 5 21.11 2 2008-09-25 0200 21.20 1 USGS 05586100 2009-05-21 105000 5 23.70 2 2009-05-22 24.00 1 USGS 05586100 2010-06-29 17:00 92200 5 22.82 2 2010-06-29 2100 22.86 1 USGS 05586100 2011-06-28 16:00 76000 5 20.83 2 2011-06-28 0500 20.94 1 USGS 05586100 2012-05-15 18:00 36600 5 9.76 2 2012-05-15 0500 9.82 1 USGS 05586100 2015-07-02 15:00 113000 5 26.77 2 2015-07-02 0100 26.85 1 USGS 05586100 2016-01-05 17:00 116000 5 25.55 2 2016-01-04 1800 25.72 1 USGS 05586100 2017-05-11 07:00 84900 5 21.65 2 2017-05-07 2000 22.37 1 USGS 05586100 2018-03-06 11:00 73200 5 17.48 2 2018-03-07 1400 17.62 1 USGS 05586100 2019-05-10 18:00 101000 5 26.17 2 2019-06-04 1200 26.98 1 USGS 05586100 2020-05-26 02:00 100000 6 22.99 2 2020-05-27 1300 23.15 USGS 05586100 2021-07-07 18:30 66700 5 15.58 2 2021-07-10 1100 16.10 USGS 05586100 2022-04-15 15:30 61600 5 14.98 2 2022-04-11 1000 15.32 USGS 05586100 2023-03-13 05:00 53200 5 12.67 2 2023-03-12 0330 12.75