# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-04-27 16:06:41 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 08159000 Onion Ck at US Hwy 183, 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 08159000 1869-07-03 38.00 5 USGS 08159000 1921-09-09 138000 7 38.00 USGS 08159000 1924-06-22 8240 18.00 3 USGS 08159000 1925-09-12 254 6.40 3 USGS 08159000 1926-04-21 24300 24.50 3 USGS 08159000 1927-06-14 1780 10.00 3 USGS 08159000 1928-02-22 4850 14.50 3 USGS 08159000 1929-05-28 76000 30.50 USGS 08159000 1941-06-07 100000 7 34.00 USGS 08159000 1976-04-18 10100 C 19.64 USGS 08159000 1977-04-20 4780 C 14.45 USGS 08159000 1977-11-01 323 C 7.77 USGS 08159000 1979-05-22 10000 C 19.40 USGS 08159000 1980-05-13 2570 C 10.14 USGS 08159000 1981-06-13 46200 C 31.27 USGS 08159000 1982-05-13 13300 C 21.28 USGS 08159000 1983-05-20 4030 C 12.33 USGS 08159000 1983-11-05 1470 C 8.79 USGS 08159000 1985-06-06 10300 C 19.33 USGS 08159000 1986-05-10 7680 C 17.89 USGS 08159000 1987-06-04 10900 C 19.79 USGS 08159000 1987-11-25 3580 C 12.54 USGS 08159000 1989-05-18 5370 C 15.16 USGS 08159000 1990-05-03 1390 C 9.05 USGS 08159000 1991-01-09 10900 C 19.57 USGS 08159000 1991-12-21 44200 C 30.50 USGS 08159000 1993-05-10 651 C 7.91 USGS 08159000 1994-08-09 1110 C 8.71 USGS 08159000 1995-05-30 9940 C 19.00 USGS 08159000 1996-06-07 874 C 8.29 USGS 08159000 1997-06-09 16:00 14100 C 22.24 USGS 08159000 1998-03-16 18:45 3130 C 12.30 USGS 08159000 1998-10-17 18:30 53900 C 32.36 USGS 08159000 2000-06-09 22:45 5180 C 14.95 USGS 08159000 2000-11-03 12:00 9550 C 18.76 USGS 08159000 2001-11-16 01:15 93200 C 36.50 USGS 08159000 2003-02-20 21:15 7280 C 17.97 USGS 08159000 2004-06-09 22:00 12200 C 21.89 USGS 08159000 2004-11-17 20:15 18900 C 24.81 USGS 08159000 2006-03-28 13:15 1500 C 9.36 USGS 08159000 2007-01-13 12:45 14300 C 22.98 USGS 08159000 2008-04-27 10:30 605 C 7.97 USGS 08159000 2009-09-12 17:45 3600 C 12.16 USGS 08159000 2010-09-08 06:00 9540 C 20.37 USGS 08159000 2011-01-09 07:45 765 C 7.95 USGS 08159000 2012-01-25 09:15 9320 C 20.33 USGS 08159000 2013-04-02 2430 C 10.80 USGS 08159000 2013-10-31 09:30 135000 C 40.13 USGS 08159000 2015-05-24 13:30 15100 C 22.93 USGS 08159000 2015-10-30 14:59 122000 C 39.33 USGS 08159000 2017-08-27 02:55 8780 C 19.17 USGS 08159000 2018-03-28 07:35 6310 C 16.50 USGS 08159000 2019-05-04 09:25 27000 C 27.11 USGS 08159000 2019-10-24 22:35 6470 C 16.25 USGS 08159000 2021-06-03 16:25 5530 C 15.10 USGS 08159000 2021-10-14 11:35 7980 C 18.04 USGS 08159000 2023-05-16 00:10 1310 C 9.18