# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-04-20 06:51:11 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 08151500 Llano Rv at Llano, 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 08151500 1935-06-14 380000 7 41.50 USGS 08151500 1940-06-20 28200 12.90 USGS 08151500 1941-04-27 26700 12.64 USGS 08151500 1942-08-23 23400 11.22 USGS 08151500 1943-06-05 50600 16.92 USGS 08151500 1944-05-25 10100 8.24 USGS 08151500 1945-01-18 8500 7.61 USGS 08151500 1946-05-17 18200 10.47 USGS 08151500 1947-01-18 8500 7.55 USGS 08151500 1948-06-25 108000 22.90 USGS 08151500 1949-04-25 14600 9.78 USGS 08151500 1950-05-16 7770 7.49 USGS 08151500 1951-05-25 13900 9.27 USGS 08151500 1952-09-10 232000 32.60 USGS 08151500 1953-05-12 16500 11.88 USGS 08151500 1953-10-04 3460 7.09 USGS 08151500 1955-05-19 72000 19.00 USGS 08151500 1956-08-31 1850 5.82 USGS 08151500 1957-05-27 47200 16.39 USGS 08151500 1957-10-14 83700 21.78 USGS 08151500 1959-06-26 35600 14.06 USGS 08151500 1959-10-04 103000 22.28 USGS 08151500 1961-06-19 57600 18.87 USGS 08151500 1962-06-02 1700 4.48 USGS 08151500 1963-09-16 1810 4.58 USGS 08151500 1964-09-24 67200 20.10 USGS 08151500 1965-05-16 24800 12.66 USGS 08151500 1966-04-25 15400 9.97 USGS 08151500 1967-05-20 27400 12.56 USGS 08151500 1968-01-20 44400 16.22 USGS 08151500 1969-05-07 4520 6.22 USGS 08151500 1969-10-05 154000 27.02 USGS 08151500 1971-08-12 28000 14.14 USGS 08151500 1971-10-20 24500 5 13.37 USGS 08151500 1973-08-01 11400 5 9.11 USGS 08151500 1973-10-13 154000 5 26.98 USGS 08151500 1975-05-24 19400 5 10.92 USGS 08151500 1976-07-04 61500 5 17.92 USGS 08151500 1977-04-16 67500 5 18.66 USGS 08151500 1978-08-03 139000 5 25.61 USGS 08151500 1979-06-01 25800 5 12.31 USGS 08151500 1980-09-08 210000 5 31.11 USGS 08151500 1981-06-18 32900 5 14.24 USGS 08151500 1981-10-14 116000 5 23.79 USGS 08151500 1983-06-06 5970 5 7.58 USGS 08151500 1984-07-28 490 5 3.29 USGS 08151500 1984-12-31 119000 5 24.00 USGS 08151500 1985-10-20 47100 5 16.47 USGS 08151500 1987-06-04 35200 5 14.04 USGS 08151500 1988-07-12 72100 5 19.21 USGS 08151500 1989-06-11 3310 5 5.33 USGS 08151500 1990-05-03 87900 5 20.94 USGS 08151500 1991-09-17 9530 5 8.14 USGS 08151500 1992-02-04 83700 5 20.51 USGS 08151500 1992-11-19 7160 5 7.25 USGS 08151500 1994-05-15 7390 5 7.34 USGS 08151500 1995-05-30 13000 5 9.26 USGS 08151500 1996-08-30 9530 5 8.14 USGS 08151500 1997-06-23 260000 5 38.86 USGS 08151500 1998-08-24 34700 5 14.05 USGS 08151500 1999-03-18 37800 5 14.64 USGS 08151500 2000-05-02 2020 5 4.21 USGS 08151500 2000-11-04 151000 5 29.05 USGS 08151500 2001-11-16 61700 5 18.81 USGS 08151500 2003-06-15 6720 5 6.39 USGS 08151500 2004-06-09 85200 5 22.15 USGS 08151500 2004-11-17 79600 5 22.07 USGS 08151500 2006-05-06 4700 5 5.18 USGS 08151500 2007-06-27 11:45 72700 5 20.46 USGS 08151500 2008-04-27 22:45 2440 5 4.04 USGS 08151500 2009-04-28 01:50 6730 5 6.12 USGS 08151500 2010-04-16 09:55 12400 5 8.61 USGS 08151500 2011-05-12 09:15 415 5 2.11 USGS 08151500 2011-10-09 04:30 7510 5 6.79 USGS 08151500 2013-09-22 05:55 6550 5 6.62 USGS 08151500 2014-05-28 03:45 3600 5 5.27 USGS 08151500 2015-05-29 08:05 25800 5 12.28 USGS 08151500 2016-05-31 20:45 30000 5 12.78 USGS 08151500 2017-04-11 12500 5 9.20 USGS 08151500 2018-09-23 04:00 19500 5 10.52 USGS 08151500 2018-10-16 07:20 278000 5 40.14 USGS 08151500 2020-03-22 06:10 7250 5 6.73 USGS 08151500 2021-06-03 18:40 1620 5 4.09 USGS 08151500 2022-09-01 04:15 7730 5 6.91 USGS 08151500 2023-05-21 04:30 1470 5 4.06