# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-05-07 15:53:29 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 08177700 Olmos Ck at Dresden Dr, San Antonio, 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 08177700 1947-09-00 8.50 5,Bd USGS 08177700 1947-11-00 8.50 5,Bd USGS 08177700 1969-08-24 620 C 6.86 USGS 08177700 1969-10-05 519 C 6.53 USGS 08177700 1971-08-03 282 C 6.20 USGS 08177700 1972-05-07 5420 C 13.20 USGS 08177700 1973-09-26 4600 C 12.40 USGS 08177700 1974-08-08 1680 C 8.78 USGS 08177700 1975-05-08 3470 C 11.20 USGS 08177700 1976-05-07 5310 C 13.10 USGS 08177700 1976-10-04 1040 C 7.38 USGS 08177700 1978-09-13 7450 C 14.82 USGS 08177700 1979-06-01 1080 C 7.44 USGS 08177700 1979-12-28 553 C 6.23 USGS 08177700 1981-06-13 2500 2,C 6.23 USGS 08177700 1983-05-21 1050 C 5.35 USGS 08177700 1984-05-28 1000 C 5.35 USGS 08177700 1985-05-24 2250 C 6.38 USGS 08177700 1986-06-04 8000 C 9.85 USGS 08177700 1987-05-31 5080 C 8.36 USGS 08177700 1988-07-21 2200 C 6.33 USGS 08177700 1989-06-14 2550 C 6.64 USGS 08177700 1990-03-14 2540 C 6.63 USGS 08177700 1991-04-05 19700 C 14.38 USGS 08177700 1992-03-03 4520 C 8.04 USGS 08177700 1993-05-05 13900 C 12.30 USGS 08177700 1994-05-15 2960 C 8.64 USGS 08177700 1994-10-25 4170 C 7.82 USGS 08177700 1996-09-24 1860 C 6.03 USGS 08177700 1997-06-22 5130 C 8.39 USGS 08177700 1998-03-16 4280 C 7.89 USGS 08177700 1998-10-17 18600 C 14.01 USGS 08177700 2000-06-10 2130 C 6.27 USGS 08177700 2000-11-02 5770 C 8.75 USGS 08177700 2002-07-01 20100 C 14.54 USGS 08177700 2003-09-11 3080 C 7.06 USGS 08177700 2004-06-25 3900 C 7.65 USGS 08177700 2004-11-22 12:15 9610 C 10.61 USGS 08177700 2006-05-05 5780 C 8.76 USGS 08177700 2007-08-16 16:15 8220 C 10.11 USGS 08177700 2008-07-08 15:30 1570 C 5.77 USGS 08177700 2009-09-22 12:30 2750 C 6.91 USGS 08177700 2009-10-04 07:45 7350 C 9.71 USGS 08177700 2011-01-09 04:00 1650 C 5.86 USGS 08177700 2012-08-19 03:30 5220 C 8.60 2,N 2012-08-19 0330 8.60 USGS 08177700 2013-05-25 06:45 14200 C 12.37 USGS 08177700 2014-07-18 02:45 5000 C 8.47 USGS 08177700 2015-04-25 05:15 6540 C 9.31 USGS 08177700 2016-09-26 07:00 16500 C 9.63 2 2016-09-26 0630 10.02 USGS 08177700 2016-12-03 05:45 6290 C 8.36 USGS 08177700 2018-09-03 22:45 10600 2,C 10.56 USGS 08177700 2018-11-08 23:30 4420 C 8.07 USGS 08177700 2019-10-24 23:00 7410 C 9.44 USGS 08177700 2021-04-28 22:30 4050 C 7.86 USGS 08177700 2021-10-14 00:30 8670 2,C 9.91 USGS 08177700 2023-05-13 02:45 3840 C 7.74