# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-04-20 03:00:34 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 11162630 PILARCITOS C A HALF MOON BAY 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 11162630 1967-01-21 1020 9.85 USGS 11162630 1968-01-30 1290 11.20 USGS 11162630 1969-02-05 594 7.00 USGS 11162630 1970-01-21 1110 10.30 USGS 11162630 1970-12-20 521 7.18 USGS 11162630 1971-12-24 48.0 4.62 USGS 11162630 1973-01-18 878 9.14 USGS 11162630 1974-01-03 722 7.95 USGS 11162630 1975-03-21 530 6.68 USGS 11162630 1975-11-08 99.0 3.77 USGS 11162630 1976-12-30 199 4.46 USGS 11162630 1978-02-07 580 7.25 USGS 11162630 1979-02-14 393 6.24 USGS 11162630 1980-02-19 997 9.58 USGS 11162630 1981-01-29 221 4.61 USGS 11162630 1982-01-04 4750 13.08 USGS 11162630 1983-01-24 2500 2 10.20 USGS 11162630 1983-12-25 345 5.28 6 USGS 11162630 1985-02-08 744 6.74 USGS 11162630 1986-02-18 2240 9.97 USGS 11162630 1987-02-13 742 5.93 USGS 11162630 1988-01-17 399 4.43 USGS 11162630 1989-03-10 730 5.88 USGS 11162630 1989-11-25 94.0 2.56 USGS 11162630 1991-03-26 338 4.20 USGS 11162630 1992-02-12 1200 9.07 USGS 11162630 1993-01-13 1010 8.22 USGS 11162630 1994-02-20 129 2.72 USGS 11162630 1995-01-09 908 7.69 USGS 11162630 1996-01-31 1000 8.16 USGS 11162630 1997-01-02 1970 11.29 USGS 11162630 1998-02-03 1950 12.27 USGS 11162630 1999-02-09 729 8.53 USGS 11162630 2000-02-13 1250 10.64 USGS 11162630 2001-02-24 194 5.64 USGS 11162630 2001-12-22 621 8.56 USGS 11162630 2002-12-16 824 10.04 USGS 11162630 2004-02-25 1240 10.85 USGS 11162630 2005-01-02 492 6.93 2 2005-03-22 7.03 USGS 11162630 2006-03-25 1080 10.37 2 2005-12-31 11.36 USGS 11162630 2007-02-10 191 6.05 USGS 11162630 2008-01-25 769 8.72 USGS 11162630 2009-02-16 727 8.53 USGS 11162630 2010-01-20 571 8.85 USGS 11162630 2011-03-24 1100 10.54 USGS 11162630 2012-03-16 630 8.44 USGS 11162630 2012-12-23 1380 11.50 USGS 11162630 2014-02-09 66.0 3.85 USGS 11162630 2014-12-11 661 9.17 USGS 11162630 2016-03-05 950 9.95 USGS 11162630 2017-02-20 1250 11.08 USGS 11162630 2018-04-07 07:30 656 8.49 USGS 11162630 2019-02-14 13:15 550 7.99 USGS 11162630 2020-01-16 16:00 150 4.63 USGS 11162630 2021-02-02 03:00 40.4 2.93 USGS 11162630 2021-12-13 12:00 1510 11.79 USGS 11162630 2022-12-31 08:45 2200 14.64