# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-04-27 16:32:12 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 08150700 Llano Rv nr Mason, 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 08150700 1889-00-00 218000 7,Bm USGS 08150700 1935-06-14 380000 7 46.00 USGS 08150700 1952-00-00 258000 7,Bm USGS 08150700 1968-05-05 18100 10.38 USGS 08150700 1969-06-24 3080 5.77 USGS 08150700 1969-10-05 55700 18.53 USGS 08150700 1971-08-12 31600 12.94 USGS 08150700 1971-10-20 23200 11.40 USGS 08150700 1973-07-31 12000 8.94 USGS 08150700 1973-10-13 151000 26.30 USGS 08150700 1975-05-24 5040 6.42 USGS 08150700 1976-09-02 26900 12.48 USGS 08150700 1977-04-16 52000 16.64 USGS 08150700 1978-08-03 92500 21.35 USGS 08150700 1979-06-01 25500 12.20 USGS 08150700 1980-09-08 260000 37.00 USGS 08150700 1981-06-17 29800 12.71 USGS 08150700 1981-10-13 114000 25.06 USGS 08150700 1983-05-21 471 2.15 USGS 08150700 1984-05-20 367 1.94 USGS 08150700 1984-12-31 115000 25.22 USGS 08150700 1985-10-19 48300 16.18 USGS 08150700 1987-06-04 24900 12.35 USGS 08150700 1988-07-12 61600 18.40 USGS 08150700 1989-05-17 1800 4.34 USGS 08150700 1990-05-03 55200 17.49 USGS 08150700 1991-09-17 16400 10.13 USGS 08150700 1992-02-25 11800 8.87 USGS 08150700 1992-12-15 496 2.16 USGS 08150700 1994-05-15 6780 7.27 USGS 08150700 1995-09-22 11400 8.75 USGS 08150700 1998-08-24 49300 16.38 USGS 08150700 1999-06-22 743 2.67 USGS 08150700 2000-09-25 1820 4.07 USGS 08150700 2000-11-04 170000 32.00 USGS 08150700 2001-11-15 60100 17.74 USGS 08150700 2003-09-19 2360 4.40 USGS 08150700 2004-06-09 11:45 10900 8.21 USGS 08150700 2004-11-17 08:15 88600 21.50 USGS 08150700 2006-05-08 19:15 1390 3.43 USGS 08150700 2007-08-17 25900 11.82 USGS 08150700 2008-04-27 10:00 3050 4.83 USGS 08150700 2009-04-28 5180 6.31 USGS 08150700 2010-05-26 13800 9.71 USGS 08150700 2011-05-12 165 0.98 USGS 08150700 2012-05-11 6550 7.27 USGS 08150700 2013-09-21 7750 7.82 USGS 08150700 2014-05-26 3630 5.77 USGS 08150700 2015-05-21 19400 11.24 USGS 08150700 2016-05-29 8530 8.15 USGS 08150700 2017-06-27 1550 4.26 USGS 08150700 2018-09-22 17:35 22700 12.02 USGS 08150700 2018-10-16 05:35 201000 34.21 USGS 08150700 2020-03-21 06:40 4750 6.30 USGS 08150700 2021-05-30 21:20 666 2.77 2 2021-09-29 1720 6.51 USGS 08150700 2021-10-01 05:10 3610 10.99 USGS 08150700 2023-05-20 09:45 3490 10.97