# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-05-05 20:15:45 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 08173900 Guadalupe Rv at Gonzales, TX # # 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 08173900 1977-04-21 42700 6 32.76 USGS 08173900 1978-06-08 7400 6 20.61 USGS 08173900 1979-05-03 11800 6 22.47 USGS 08173900 1980-09-08 11200 6 22.20 USGS 08173900 1981-06-15 48000 6 33.47 USGS 08173900 1981-11-02 28400 6 28.22 USGS 08173900 1983-05-22 7300 6 20.53 USGS 08173900 1985-06-08 12400 6 22.70 USGS 08173900 1985-11-26 27600 6 28.06 USGS 08173900 1987-06-05 52000 6 34.70 USGS 08173900 1987-11-26 6400 6 20.15 USGS 08173900 1989-05-11 19.41 USGS 08173900 1990-09-10 20.97 USGS 08173900 1991-01-19 27.94 USGS 08173900 1991-12-22 35.01 USGS 08173900 1993-05-07 24.88 USGS 08173900 1994-05-16 23.34 USGS 08173900 1996-09-20 5660 6 19.78 USGS 08173900 1997-06-24 18500 6 38.80 USGS 08173900 1998-03-18 7150 6 24.00 USGS 08173900 1998-10-19 340000 6 50.44 USGS 08173900 2000-06-12 4950 6 19.19 USGS 08173900 2001-09-01 12900 6 30.45 USGS 08173900 2002-07-07 55000 6 42.64 USGS 08173900 2002-11-06 47400 6 41.93 USGS 08173900 2004-06-11 54800 6 40.36 USGS 08173900 2004-11-23 11:00 101000 6 44.38 USGS 08173900 2006-07-05 00:15 3480 6 16.69 USGS 08173900 2007-03-13 11:30 35900 6 40.53 USGS 08173900 2007-11-18 10:45 3150 6 15.99 USGS 08173900 2009-04-18 22:45 9790 6 26.80 USGS 08173900 2010-06-11 02:45 23800 6 37.72 USGS 08173900 2010-10-04 15:15 1710 6 13.57 USGS 08173900 2012-01-26 18:45 29200 6 39.76 USGS 08173900 2013-09-30 10:00 7750 6 22.66 USGS 08173900 2013-11-01 22:45 26100 6 28.94 USGS 08173900 2015-05-25 44100 6 42.13 USGS 08173900 2015-11-01 03:00 42600 6 41.93 USGS 08173900 2017-08-28 11:45 47100 6,9 42.50 USGS 08173900 2018-03-30 11:00 15400 6 32.25 USGS 08173900 2018-12-09 09:00 12900 6 29.69 USGS 08173900 2020-05-26 12:00 5260 6 18.71 USGS 08173900 2021-05-03 02:00 12300 6 28.96 USGS 08173900 2021-10-16 00:15 35400 6 40.93 USGS 08173900 2023-04-21 09:00 6530 6 21.31