# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-06-26 02:57:59 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 08158930 Williamson Ck at Manchaca Rd, Austin, 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 08158930 1976-04-18 2960 C 9.07 USGS 08158930 1977-04-15 764 C 5.75 USGS 08158930 1978-05-02 551 C 5.29 USGS 08158930 1979-05-22 5560 C 12.49 USGS 08158930 1980-05-12 1000 C 6.19 USGS 08158930 1981-06-11 8490 C 16.00 USGS 08158930 1982-05-13 3900 C 10.33 USGS 08158930 1983-08-08 1670 C 7.25 USGS 08158930 1983-11-05 1320 C 6.70 USGS 08158930 1984-10-10 487 1,C USGS 08158930 2000-06-09 1290 C 7.65 USGS 08158930 2001-08-26 3220 C 9.42 USGS 08158930 2001-11-15 5830 C 16.85 USGS 08158930 2003-02-20 1160 C 7.55 USGS 08158930 2004-06-09 3120 C 11.52 USGS 08158930 2004-11-17 3610 C 12.23 USGS 08158930 2006-03-28 662 C 6.36 USGS 08158930 2007-01-13 09:35 3370 C 12.18 USGS 08158930 2008-04-27 07:25 601 C 6.16 USGS 08158930 2009-09-12 04:35 542 C 5.98 USGS 08158930 2010-09-07 23:35 4720 C 14.65 USGS 08158930 2011-05-12 10:55 201 C 4.73 USGS 08158930 2012-01-25 06:15 3060 C 11.63 USGS 08158930 2013-04-02 18:10 1170 C 7.73 USGS 08158930 2013-10-13 07:15 21300 C 20.62 5 USGS 08158930 2015-05-25 18:45 5350 C 12.18 USGS 08158930 2015-10-30 11:20 13400 C 17.19 USGS 08158930 2017-08-27 02:15 1330 C 7.65 USGS 08158930 2018-03-28 04:05 620 C 6.15 USGS 08158930 2019-05-03 22:10 9300 C 14.94 USGS 08158930 2020-04-03 19:05 1190 C 7.39 USGS 08158930 2021-06-03 13:25 1190 C 7.39 USGS 08158930 2021-10-01 07:05 1020 C 7.07 USGS 08158930 2022-11-04 20:10 266 C 5.02