# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-03-28 09:23:00 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 11181008 CASTRO VALLEY C A HAYWARD 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 11181008 1971-12-22 267 C 3.93 USGS 11181008 1973-02-27 665 C 7.15 USGS 11181008 1974-04-01 523 C 5.77 USGS 11181008 1975-03-25 479 C 5.41 USGS 11181008 1975-10-29 541 C 5.92 USGS 11181008 1977-01-02 370 C 4.62 USGS 11181008 1978-01-14 664 C 7.14 USGS 11181008 1979-01-08 670 C 7.20 USGS 11181008 1979-10-25 661 C 7.11 USGS 11181008 1981-01-27 574 C 6.25 USGS 11181008 1982-01-04 1010 C 7.36 USGS 11181008 1983-01-23 1350 C 8.51 USGS 11181008 1984-02-15 934 C 7.08 USGS 11181008 1985-02-08 528 C 5.37 USGS 11181008 1986-02-18 827 C 6.67 USGS 11181008 1987-02-13 953 C 7.15 USGS 11181008 1988-01-16 762 C 6.41 USGS 11181008 1989-03-25 600 C 5.71 USGS 11181008 1989-10-23 1120 C 7.76 USGS 11181008 1991-02-04 581 C 5.62 USGS 11181008 1992-02-12 473 C 5.10 USGS 11181008 1993-01-20 1260 C 8.23 USGS 11181008 1993-10-15 557 C 5.51 USGS 11181008 1995-03-10 961 C 7.18 USGS 11181008 1996-01-16 714 C 6.21 USGS 11181008 1997-01-02 1240 C 8.15 USGS 11181008 1998-02-02 1550 C 9.12 USGS 11181008 1998-11-30 863 C 6.81 USGS 11181008 2000-02-11 873 C 6.85 USGS 11181008 2001-01-25 847 C 6.75 USGS 11181008 2001-12-02 1080 C 7.62 USGS 11181008 2002-11-08 1440 C 8.81 USGS 11181008 2004-02-25 1020 C 7.38 USGS 11181008 2004-10-26 865 C 6.82 USGS 11181008 2005-12-26 1170 C 7.92 USGS 11181008 2007-02-26 583 C 5.63 USGS 11181008 2008-01-04 881 C 6.88 USGS 11181008 2008-12-25 503 C 5.25 USGS 11181008 2010-01-20 1160 C 7.89 USGS 11181008 2011-03-24 1150 C 7.86 USGS 11181008 2012-03-16 972 C 7.22 USGS 11181008 2012-12-02 746 C 6.34 USGS 11181008 2014-02-28 705 C 6.17 USGS 11181008 2014-12-11 1220 C 8.07 USGS 11181008 2016-03-05 1130 C 7.78 USGS 11181008 2017-01-20 773 C 6.45 USGS 11181008 2018-04-07 04:30 483 C 5.15 USGS 11181008 2019-01-16 21:40 856 C 6.78 USGS 11181008 2019-11-26 19:50 514 C 5.30 USGS 11181008 2020-12-17 01:35 482 C 5.14 USGS 11181008 2021-10-24 17:45 717 C 6.22