# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-12-01 04:59:39 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 11141280 LOPEZ C NR ARROYO GRANDE 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 11141280 1967-07-30 9.00 2.44 USGS 11141280 1968-03-08 32.0 2.79 USGS 11141280 1969-01-25 2830 9.26 USGS 11141280 1970-01-16 198 4.10 USGS 11141280 1970-12-21 143 4.62 USGS 11141280 1971-12-27 199 4.98 USGS 11141280 1973-01-18 2120 8.60 USGS 11141280 1974-01-07 732 6.06 USGS 11141280 1975-02-02 200 4.54 USGS 11141280 1976-03-02 43.0 3.89 USGS 11141280 1977-01-03 15.0 3.76 USGS 11141280 1978-03-04 1960 8.17 USGS 11141280 1979-03-28 175 4.46 USGS 11141280 1980-02-16 997 6.63 USGS 11141280 1981-01-29 485 5.45 USGS 11141280 1982-04-11 1460 7.42 USGS 11141280 1983-03-01 1390 9.62 USGS 11141280 1983-12-25 305 7.50 USGS 11141280 1985-02-08 510 5.58 6 USGS 11141280 1986-02-14 1500 7.81 USGS 11141280 1987-02-13 171 5.57 USGS 11141280 1988-02-29 187 5.65 USGS 11141280 1988-12-24 163 5.53 USGS 11141280 1990-02-17 13.0 4.21 USGS 11141280 1991-03-18 332 6.30 USGS 11141280 1992-02-12 506 6.90 USGS 11141280 1993-02-23 330 6.59 USGS 11141280 1994-02-19 307 6.19 USGS 11141280 1995-03-10 2080 8.75 USGS 11141280 1996-02-19 632 7.12 USGS 11141280 1997-01-02 754 7.32 USGS 11141280 1998-02-03 792 10.12 3 USGS 11141280 1999-02-09 236 8.67 USGS 11141280 2000-02-14 378 9.13 USGS 11141280 2001-03-05 1380 11.21 USGS 11141280 2001-12-02 83.0 7.24 USGS 11141280 2003-03-15 339 8.48 USGS 11141280 2004-02-25 592 9.33 USGS 11141280 2004-12-31 2020 12.42 USGS 11141280 2006-01-02 1010 10.90 USGS 11141280 2007-02-11 16.0 7.21 USGS 11141280 2008-01-28 163 1,2 USGS 11141280 2009-02-16 22.0 8.27 2 2009-08-31 0915 9.01 USGS 11141280 2009-10-14 642 11.10 USGS 11141280 2010-12-19 857 12.28 USGS 11141280 2012-04-13 127 8.86 USGS 11141280 2012-12-24 171 9.21 USGS 11141280 2014-03-02 23.0 7.84 USGS 11141280 2015-02-09 21.0 7.70 USGS 11141280 2016-01-19 119 8.87 USGS 11141280 2017-01-11 489 10.94 USGS 11141280 2018-03-22 10:00 422 10.75 USGS 11141280 2019-02-03 03:45 407 10.70 USGS 11141280 2020-04-06 00:45 68.1 8.46 USGS 11141280 2021-01-29 02:15 101 8.77 USGS 11141280 2021-12-23 15:30 240 9.71 USGS 11141280 2023-01-09 10:07 2100 14.07