# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-05-01 20:03:37 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 05525000 IROQUOIS RIVER AT IROQUOIS, 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 05525000 1945-05-20 3570 18.27 USGS 05525000 1945-10-04 2820 16.19 USGS 05525000 1947-06-05 2150 13.97 USGS 05525000 1948-03-24 2510 15.18 USGS 05525000 1949-02-18 2820 16.20 USGS 05525000 1950-04-06 4740 20.54 USGS 05525000 1951-07-10 6460 23.30 USGS 05525000 1952-06-17 2580 15.50 USGS 05525000 1953-03-19 2610 15.60 2 1953-07-07 15.80 USGS 05525000 1954-04-13 1370 12.21 USGS 05525000 1955-06-13 2250 15.95 USGS 05525000 1956-05-02 3990 19.01 USGS 05525000 1957-07-13 5600 22.79 USGS 05525000 1958-06-13 10400 26.31 USGS 05525000 1959-02-13 5400 2 22.51 1 USGS 05525000 1960-04-01 3580 18.21 USGS 05525000 1961-04-27 2720 16.31 USGS 05525000 1962-03-23 4000 19.29 USGS 05525000 1963-03-07 5150 21.49 USGS 05525000 1964-04-23 1540 13.41 USGS 05525000 1965-04-28 2240 15.22 USGS 05525000 1965-12-28 3620 19.14 USGS 05525000 1966-12-12 2590 16.10 USGS 05525000 1968-02-02 6390 23.35 USGS 05525000 1969-02-01 3700 18.66 USGS 05525000 1970-05-15 5400 22.28 USGS 05525000 1971-02-05 2310 15.77 USGS 05525000 1972-09-30 2480 16.11 USGS 05525000 1973-04-24 3580 18.96 USGS 05525000 1974-01-24 4210 20.22 USGS 05525000 1975-06-17 3850 19.49 USGS 05525000 1976-02-19 3860 19.53 USGS 05525000 1977-08-12 2280 15.37 USGS 05525000 1978-03-21 4340 20.49 USGS 05525000 1979-03-05 6910 23.81 USGS 05525000 1980-06-03 4570 20.04 USGS 05525000 1981-05-18 4780 20.45 USGS 05525000 1982-02-24 6090 22.56 USGS 05525000 1983-05-04 4470 19.83 USGS 05525000 1984-02-15 4480 19.86 USGS 05525000 1985-02-25 6020 22.46 USGS 05525000 1985-11-21 4650 20.20 USGS 05525000 1987-05-22 3320 17.38 USGS 05525000 1988-04-01 2690 15.81 USGS 05525000 1989-09-02 3670 18.25 USGS 05525000 1990-03-13 6400 23.46 USGS 05525000 1990-12-30 7720 24.59 USGS 05525000 1992-02-21 1370 13.88 USGS 05525000 1993-01-07 5560 22.29 USGS 05525000 1993-10-21 5610 23.35 USGS 05525000 1995-05-28 4250 20.10 USGS 05525000 1996-05-30 2970 17.28 USGS 05525000 1997-02-28 6030 21.94 USGS 05525000 1998-03-22 5740 21.60 2 1998-05-09 21.96 USGS 05525000 1999-01-26 4890 20.53 USGS 05525000 2000-07-04 3660 18.58 USGS 05525000 2001-06-06 4350 19.76 USGS 05525000 2002-05-14 4470 19.95 USGS 05525000 2003-07-12 9920 25.74 USGS 05525000 2004-06-13 6740 22.74 USGS 05525000 2005-01-14 6280 23.54 USGS 05525000 2006-04-19 3030 17.30 USGS 05525000 2007-03-25 4280 20.40 2 2007-03-26 20.41 USGS 05525000 2008-01-09 9590 25.81 USGS 05525000 2009-03-11 8150 24.80 USGS 05525000 2010-06-25 04:45 3360 18.17 USGS 05525000 2011-04-29 00:30 5790 21.83 USGS 05525000 2012-05-08 07:30 3260 17.91 USGS 05525000 2013-06-02 03:45 4950 21.89 USGS 05525000 2014-06-26 08:15 4380 20.63 USGS 05525000 2015-06-21 16:15 9060 25.27 USGS 05525000 2015-12-29 19:45 6700 23.07 USGS 05525000 2017-05-05 23:00 3820 18.69 USGS 05525000 2018-02-22 00:30 9900 26.17 USGS 05525000 2019-05-03 02:15 4650 20.59 USGS 05525000 2020-06-28 19:15 5710 22.03 USGS 05525000 2021-07-01 12:45 5100 21.22 USGS 05525000 2022-02-19 10:15 3780 18.47 USGS 05525000 2023-03-05 19:45 4170 20.37