# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-11-22 01:05:46 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 11162570 SAN GREGORIO C A SAN GREGORIO 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 11162570 1955-12-22 3620 7 15.60 USGS 11162570 1970-01-21 3120 15.29 USGS 11162570 1970-12-18 1590 10.88 USGS 11162570 1972-02-05 366 6.30 USGS 11162570 1973-01-16 3730 17.50 USGS 11162570 1974-04-01 3600 17.20 USGS 11162570 1975-03-21 2010 12.52 USGS 11162570 1976-02-29 67.0 3.88 USGS 11162570 1977-03-16 19.0 1 USGS 11162570 1978-01-14 2910 15.25 USGS 11162570 1979-02-14 1830 11.93 USGS 11162570 1980-01-13 2650 14.51 USGS 11162570 1981-03-21 1240 9.69 USGS 11162570 1982-01-04 7910 21.28 USGS 11162570 1983-03-02 5440 14.40 USGS 11162570 1983-12-25 1600 7.01 USGS 11162570 1985-02-08 2470 8.86 USGS 11162570 1986-02-19 3860 11.83 USGS 11162570 1987-02-13 2710 9.62 USGS 11162570 1988-01-17 1700 7.80 USGS 11162570 1989-03-11 946 7.85 USGS 11162570 1990-02-16 1250 8.48 USGS 11162570 1991-03-24 1780 9.37 USGS 11162570 1992-02-12 5200 17.48 USGS 11162570 1993-01-13 3530 15.07 USGS 11162570 1994-02-19 923 9.31 USGS 11162570 1995-01-09 6600 7 19.44 USGS 11162570 1997-01-01 6100 7 18.74 USGS 11162570 2001-12-02 2250 10.52 USGS 11162570 2002-12-16 3010 12.14 USGS 11162570 2004-01-01 2670 12.21 USGS 11162570 2005-03-22 1320 9.43 USGS 11162570 2008-01-25 3540 14.32 USGS 11162570 2009-02-16 2700 13.74 USGS 11162570 2010-01-20 4290 17.60 USGS 11162570 2011-03-24 2420 13.42 USGS 11162570 2012-03-17 2060 12.77 USGS 11162570 2012-12-23 4960 18.66 USGS 11162570 2014-02-10 99.0 4.28 USGS 11162570 2014-12-11 2710 14.25 USGS 11162570 2016-03-06 2290 13.79 USGS 11162570 2017-02-07 4490 18.06 USGS 11162570 2018-04-07 08:22 1860 13.34 USGS 11162570 2019-01-17 00:30 1670 12.73 USGS 11162570 2020-01-16 16:00 425 7.67 USGS 11162570 2021-01-28 10:45 330 7.16 USGS 11162570 2021-12-14 1160 11.08 USGS 11162570 2022-12-31 11:00 5350 18.74