# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-11-24 19:55:37 EST # # ---------------------------------- 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 11173575 ALAMEDA C BL WELCH C NR SUNOL CA # # 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 11173575 2000-02-13 2910 6 15.98 USGS 11173575 2001-03-04 291 6 10.98 USGS 11173575 2001-12-29 967 6 12.88 USGS 11173575 2002-12-16 5750 6 19.07 USGS 11173575 2004-01-01 2580 6 15.53 USGS 11173575 2004-12-30 1880 6 14.50 USGS 11173575 2005-12-31 3780 6 16.79 USGS 11173575 2007-02-26 1720 6 14.37 USGS 11173575 2008-02-24 2070 6 14.86 USGS 11173575 2009-03-04 3130 6 16.12 USGS 11173575 2010-01-20 1250 6 14.00 USGS 11173575 2011-03-24 3200 6 17.18 USGS 11173575 2012-04-13 652 6 13.27 USGS 11173575 2012-12-23 5240 6 19.03 USGS 11173575 2014-03-01 173 6 11.25 USGS 11173575 2014-12-12 1810 6 15.66 USGS 11173575 2016-01-19 1750 6 16.91 USGS 11173575 2017-01-10 4700 6 20.11 USGS 11173575 2018-03-22 11:45 1300 6 15.15 USGS 11173575 2019-01-17 02:15 2410 6,R 17.19 USGS 11173575 2020-04-05 18:30 810 6 14.48 USGS 11173575 2021-01-28 20:00 788 6 14.41 USGS 11173575 2021-12-27 11:45 1280 6 15.56 USGS 11173575 2022-12-31 17:15 5020 6 20.51