# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-04-23 17:57:39 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 01672500 SOUTH ANNA RIVER NEAR ASHLAND, VA # # 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 01672500 1928-08-15 14500 2,7 24.00 3 USGS 01672500 1931-05-23 2200 8.79 3 USGS 01672500 1932-05-15 2890 10.46 3 USGS 01672500 1933-01-28 3230 11.30 3 USGS 01672500 1934-03-07 2520 9.63 3 USGS 01672500 1935-09-06 8740 19.04 3 USGS 01672500 1936-01-06 5380 15.50 3 USGS 01672500 1937-04-28 13700 22.77 3 USGS 01672500 1937-10-20 4630 13.98 3 USGS 01672500 1939-02-12 3100 10.95 3 USGS 01672500 1940-04-09 3230 11.08 3 USGS 01672500 1941-04-08 2300 9.02 3 USGS 01672500 1942-08-12 3740 11.97 3 USGS 01672500 1942-10-19 3990 12.43 3 USGS 01672500 1944-08-02 3560 11.73 3 USGS 01672500 1945-07-18 4450 13.10 3 USGS 01672500 1946-05-27 3800 12.10 3 USGS 01672500 1947-03-15 2170 8.71 3 USGS 01672500 1948-08-08 5420 14.38 3 USGS 01672500 1948-12-07 6150 16.00 3 USGS 01672500 1950-03-24 2470 9.40 3 USGS 01672500 1951-06-13 1970 8.19 3 USGS 01672500 1952-09-01 4640 13.92 3 USGS 01672500 1952-11-21 4150 12.95 3 USGS 01672500 1954-03-03 1860 7.83 3 USGS 01672500 1955-08-18 7220 17.19 3 USGS 01672500 1956-07-21 12800 22.22 3 USGS 01672500 1956-11-01 2480 9.35 3 USGS 01672500 1958-08-25 3400 11.68 3 USGS 01672500 1958-12-29 2600 9.72 3 USGS 01672500 1960-04-06 3480 11.90 3 USGS 01672500 1961-02-23 3650 11.55 3 USGS 01672500 1961-10-22 7650 17.47 3 USGS 01672500 1963-03-15 3750 11.84 3 USGS 01672500 1964-02-19 3010 10.27 3 USGS 01672500 1965-03-08 2650 9.47 3 USGS 01672500 1966-09-21 2960 10.15 3 USGS 01672500 1967-03-16 2470 9.09 3 USGS 01672500 1968-01-18 2950 10.17 3 USGS 01672500 1969-08-23 17100 24.99 3 USGS 01672500 1970-01-03 2280 8.94 3 USGS 01672500 1971-06-02 4180 12.63 3 USGS 01672500 1972-06-21 12600 20.90 3 USGS 01672500 1972-10-09 9690 19.54 3 USGS 01672500 1973-12-22 3830 12.00 3 USGS 01672500 1975-09-26 7640 17.48 3 USGS 01672500 1976-01-27 3820 11.91 3 USGS 01672500 1976-10-20 3060 10.39 3 USGS 01672500 1978-01-26 6190 15.56 3 USGS 01672500 1979-02-26 7970 17.76 3 USGS 01672500 1979-10-02 6550 16.13 3 USGS 01672500 1981-02-13 785 4.79 3 USGS 01672500 1982-02-07 2850 9.94 3 USGS 01672500 1983-04-16 3100 10.47 3 USGS 01672500 1984-03-29 5550 14.79 3 USGS 01672500 1985-08-19 8720 18.55 3 USGS 01672500 1985-11-07 6690 16.30 3 USGS 01672500 1987-04-20 4940 13.91 3 USGS 01672500 1988-05-21 2790 9.80 3 USGS 01672500 1989-07-16 4910 13.85 3 USGS 01672500 1990-05-30 7190 16.93 3 USGS 01672500 1991-07-07 3750 11.76 3 USGS 01672500 1992-09-03 2000 7.99 3 USGS 01672500 1993-03-07 5920 15.30 3 USGS 01672500 1993-12-01 7630 17.41 3 USGS 01672500 1995-07-01 3400 11.07 3 USGS 01672500 1996-01-22 4210 12.64 3 USGS 01672500 1996-12-07 2760 9.74 3 USGS 01672500 2001-03-30 2460 9.08 3 USGS 01672500 2002-01-07 2350 8.82 3 USGS 01672500 2003-12-14 3740 12.47 USGS 01672500 2005-01-14 2730 10.09 USGS 01672500 2005-12-17 1920 7.99 USGS 01672500 2007-01-01 3700 12.39 USGS 01672500 2008-05-12 2890 10.48 USGS 01672500 2008-12-12 2090 8.47 USGS 01672500 2009-12-27 3100 1,2 USGS 01672500 2011-09-09 5030 14.83 USGS 01672500 2011-12-11 3650 12.28 USGS 01672500 2013-06-11 3180 11.21 USGS 01672500 2014-05-01 6390 16.17 USGS 01672500 2015-06-28 1870 7.84 USGS 01672500 2016-05-23 3070 10.56 USGS 01672500 2016-10-09 07:15 2160 8.33 USGS 01672500 2018-05-18 09:00 7320 16.91 USGS 01672500 2018-10-12 03:15 3820 11.94 USGS 01672500 2020-08-07 00:15 5340 14.63 USGS 01672500 2020-11-12 09:15 8040 18.15 USGS 01672500 2022-03-17 23:30 1680 7.19 USGS 01672500 2023-05-01 15:30 2390 8.82