# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-04-28 02:21:03 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 11182500 SAN RAMON C A SAN RAMON 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 11182500 1952-12-07 212 3.72 USGS 11182500 1954-02-17 187 3.47 USGS 11182500 1955-01-18 97.0 3.04 USGS 11182500 1955-12-22 1350 14.20 USGS 11182500 1957-05-18 169 3.74 USGS 11182500 1958-04-02 1490 15.30 USGS 11182500 1959-02-16 96.0 2.86 USGS 11182500 1960-02-08 381 5.96 USGS 11182500 1961-03-14 25.0 2.50 USGS 11182500 1962-02-14 343 5.32 USGS 11182500 1962-10-13 1600 16.98 USGS 11182500 1964-01-20 480 5.57 USGS 11182500 1964-12-23 579 6.30 USGS 11182500 1966-01-29 92.0 2.97 USGS 11182500 1967-01-21 484 5.60 USGS 11182500 1968-01-30 131 3.25 USGS 11182500 1969-01-26 407 5.05 USGS 11182500 1970-01-21 504 5.74 USGS 11182500 1970-12-04 219 3.84 USGS 11182500 1972-02-05 22.0 2.37 USGS 11182500 1973-01-16 506 5.76 USGS 11182500 1973-11-30 356 4.71 USGS 11182500 1975-03-21 694 7.19 USGS 11182500 1976-02-29 16.0 2.28 USGS 11182500 1977-01-02 19.0 2.32 USGS 11182500 1978-01-04 596 6.43 USGS 11182500 1979-01-11 228 3.91 USGS 11182500 1980-01-13 523 5.80 USGS 11182500 1981-03-25 68.0 2.79 USGS 11182500 1982-01-04 1220 11.79 USGS 11182500 1983-03-13 770 7.77 USGS 11182500 1983-11-24 411 5.08 USGS 11182500 1985-02-08 382 4.88 USGS 11182500 1986-02-17 751 7.63 USGS 11182500 1987-02-13 278 4.22 USGS 11182500 1988-01-16 62.0 2.73 USGS 11182500 1989-03-25 136 3.29 USGS 11182500 1990-02-16 45.0 2.59 USGS 11182500 1991-03-26 103 3.05 USGS 11182500 1992-02-12 189 3.65 USGS 11182500 1993-01-13 718 7.37 USGS 11182500 1994-02-19 45.0 2.59 USGS 11182500 1995-01-09 425 5.18 USGS 11182500 1996-02-04 346 4.64 USGS 11182500 1997-01-26 632 6.71 USGS 11182500 1998-02-03 1530 13.81 USGS 11182500 1999-02-07 596 6.11 USGS 11182500 2000-02-13 545 5.80 USGS 11182500 2001-03-04 39.0 2.53 USGS 11182500 2001-12-30 132 3.26 USGS 11182500 2002-12-16 1210 10.65 USGS 11182500 2004-01-01 431 5.14 USGS 11182500 2005-03-27 99.0 3.02 USGS 11182500 2005-12-31 1450 12.87 USGS 11182500 2007-02-26 78.0 2.85 USGS 11182500 2008-02-03 178 3.58 USGS 11182500 2009-03-03 82.0 2.88 USGS 11182500 2010-01-20 182 3.60 USGS 11182500 2010-12-29 352 4.67 USGS 11182500 2012-04-13 210 3.78 USGS 11182500 2012-12-02 734 6.96 USGS 11182500 2014-04-01 31.0 2.53 USGS 11182500 2014-12-16 116 3.21 USGS 11182500 2016-01-18 237 4.16 USGS 11182500 2017-01-10 716 7.94 USGS 11182500 2018-03-22 08:30 93.8 3.08 USGS 11182500 2019-01-16 22:15 445 5.88 USGS 11182500 2020-04-05 15:00 9.96 2.21 USGS 11182500 2021-01-28 14:15 10.4 2.22 USGS 11182500 2021-12-23 08:45 529 7.20 2 2021-12-23 0647 7.86 USGS 11182500 2022-12-31 13:15 1080 11.41