# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-05-02 01:49:08 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 11303500 SAN JOAQUIN R NR VERNALIS 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 11303500 1923-10-15 4550 6 10.01 USGS 11303500 1930-06-17 5050 6 10.56 USGS 11303500 1930-12-25 2210 6 7.29 USGS 11303500 1932-05-31 18200 6 21.58 USGS 11303500 1933-06-17 8570 6 14.74 USGS 11303500 1934-01-03 4260 6 10.20 USGS 11303500 1935-05-30 23800 6 24.50 USGS 11303500 1936-02-25 28700 6 25.47 USGS 11303500 1937-06-01 26000 6 24.29 USGS 11303500 1938-03-16 51200 6 26.64 2 1938-02-12 27.05 USGS 11303500 1939-02-10 5660 6 12.05 USGS 11303500 1940-04-02 37300 6 25.35 USGS 11303500 1941-03-05 34400 6 24.61 USGS 11303500 1942-06-09 27200 6 23.87 USGS 11303500 1943-03-12 38900 6 25.30 USGS 11303500 1944-03-06 7480 6 13.53 USGS 11303500 1945-05-11 20300 6 21.30 USGS 11303500 1946-05-11 16500 6 19.28 USGS 11303500 1946-12-14 4430 6 10.53 USGS 11303500 1948-06-13 11700 6 16.39 USGS 11303500 1949-05-17 5340 6 11.52 USGS 11303500 1950-06-05 14700 6 18.50 USGS 11303500 1950-12-09 79000 6 27.75 USGS 11303500 1952-06-02 34400 6 1952-05-30 25.33 USGS 11303500 1953-06-22 10100 6 15.43 USGS 11303500 1954-05-21 9990 6 15.28 USGS 11303500 1955-01-20 5450 6 11.62 USGS 11303500 1955-12-25 50900 6 26.89 USGS 11303500 1957-06-10 9370 6 14.97 USGS 11303500 1958-04-05 41400 6 26.60 USGS 11303500 1959-02-22 5670 6 11.92 6 USGS 11303500 1960-02-11 3310 6 14.67 USGS 11303500 1961-01-29 1610 6 12.56 USGS 11303500 1962-02-21 12600 6 22.85 USGS 11303500 1963-05-31 13100 6 23.80 USGS 11303500 1963-12-27 4020 6 15.58 USGS 11303500 1965-01-12 22800 6 28.27 USGS 11303500 1965-12-07 9730 6 21.23 USGS 11303500 1967-04-30 26100 6 29.28 6 USGS 11303500 1968-02-24 4250 6 15.26 USGS 11303500 1969-01-27 52600 6 34.55 USGS 11303500 1970-01-23 25900 6 28.52 USGS 11303500 1970-12-23 6700 6 16.68 USGS 11303500 1971-12-30 3930 6 13.78 USGS 11303500 1973-02-18 13100 6 21.63 USGS 11303500 1974-01-27 9810 6 19.16 USGS 11303500 1975-02-15 9080 6 18.60 USGS 11303500 1975-10-19 5720 6 15.72 USGS 11303500 1976-10-03 1940 1,6 1976-10-02 11.32 USGS 11303500 1978-05-04 26400 6 28.12 USGS 11303500 1979-03-03 13900 6 22.81 USGS 11303500 1980-02-27 33900 6 30.19 USGS 11303500 1981-01-31 5830 6 15.99 USGS 11303500 1982-04-18 29800 6 29.12 USGS 11303500 1983-03-07 45100 6 31.49 USGS 11303500 1984-01-06 33000 6 27.78 USGS 11303500 1984-12-20 5920 6 14.91 USGS 11303500 1986-03-19 36900 6 29.86 USGS 11303500 1987-03-07 6410 6 15.04 USGS 11303500 1988-04-27 2740 6 11.15 USGS 11303500 1989-05-03 2630 6 10.99 USGS 11303500 1990-05-29 2050 6 10.28 USGS 11303500 1991-03-28 4130 6 12.69 USGS 11303500 1992-02-16 5570 6 13.93 USGS 11303500 1993-01-19 10300 6 18.34 USGS 11303500 1993-10-19 4440 6 13.02 USGS 11303500 1995-03-19 26100 6 26.82 USGS 11303500 1996-03-10 18000 6 22.82 USGS 11303500 1997-01-05 75600 6 34.88 USGS 11303500 1998-02-13 35200 6 28.78 USGS 11303500 1999-02-14 16100 5 20.98 USGS 11303500 2000-03-07 16800 6 21.57 USGS 11303500 2001-02-26 6050 6 13.51 USGS 11303500 2002-01-04 6370 6 13.94 USGS 11303500 2003-05-04 3540 6 11.27 USGS 11303500 2004-03-20 4560 6 12.32 USGS 11303500 2005-06-06 15400 6 20.74 USGS 11303500 2006-04-13 34800 6 29.22 USGS 11303500 2006-10-20 4210 6 13.42 USGS 11303500 2008-01-29 4750 6 13.43 USGS 11303500 2009-05-13 2670 6 10.66 2 2009-03-06 10.86 USGS 11303500 2010-06-15 6500 6 14.47 USGS 11303500 2011-04-02 30900 6 27.23 USGS 11303500 2011-10-14 5840 6 14.21 USGS 11303500 2013-05-04 4210 6 12.37 USGS 11303500 2014-04-27 3080 6 11.15 USGS 11303500 2014-12-17 1850 6 9.66 USGS 11303500 2016-03-15 5800 6 14.21 USGS 11303500 2017-02-23 41000 6 30.73 USGS 11303500 2018-04-08 09:15 11000 6 17.84 USGS 11303500 2019-03-13 06:15 17200 6 21.82 USGS 11303500 2019-12-09 13:30 6130 6 14.29 USGS 11303500 2021-01-31 01:45 2470 6 10.76 USGS 11303500 2021-12-29 23:00 2600 6 10.83 USGS 11303500 2023-03-19 11:00 34400 6 29.82