# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-05-01 00:52:54 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 02041650 APPOMATTOX RIVER AT MATOACA, 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 02041650 1970-04-04 4710 6 7.04 USGS 02041650 1971-05-31 10500 6 10.70 USGS 02041650 1972-06-27 22800 6 14.60 USGS 02041650 1972-10-07 40800 6 18.39 USGS 02041650 1973-12-23 8500 6 9.19 USGS 02041650 1975-03-19 15200 6 12.31 USGS 02041650 1976-01-29 8550 6 9.22 USGS 02041650 1976-10-23 6410 6 7.88 USGS 02041650 1978-03-12 14200 6 11.98 USGS 02041650 1979-02-26 22000 6 14.37 USGS 02041650 1979-10-03 17700 6 13.09 USGS 02041650 1981-06-09 3650 6 6.07 USGS 02041650 1982-06-08 6380 6 7.86 USGS 02041650 1983-03-21 10900 6 10.61 USGS 02041650 1984-02-16 16200 6 12.63 USGS 02041650 1985-02-03 7950 6 8.62 USGS 02041650 1985-11-06 14400 6 12.07 USGS 02041650 1987-04-18 14300 6 12.04 USGS 02041650 1988-01-21 5880 6 7.40 USGS 02041650 1989-05-07 8940 6 9.20 USGS 02041650 1990-06-01 7780 6 8.52 USGS 02041650 1991-03-31 8680 6 9.05 USGS 02041650 1992-03-08 9080 6 9.28 USGS 02041650 1993-03-06 12500 6 11.32 USGS 02041650 1994-03-04 12200 6 11.10 USGS 02041650 1995-07-14 6510 6 7.77 USGS 02041650 1996-09-12 12300 6 11.17 USGS 02041650 1996-12-08 8820 6 9.13 USGS 02041650 1998-03-21 14100 6 11.97 USGS 02041650 1999-09-16 13100 6 11.58 USGS 02041650 2000-04-19 8820 6 9.13 USGS 02041650 2001-04-01 8870 6 9.16 USGS 02041650 2002-03-20 3510 6 5.94 USGS 02041650 2003-05-26 25900 6 14.61 USGS 02041650 2004-08-31 21800 6 13.57 USGS 02041650 2005-01-17 7830 6 8.39 USGS 02041650 2006-09-03 6250 6 7.76 USGS 02041650 2006-10-09 12900 6 10.73 USGS 02041650 2008-05-12 6550 6 8.17 USGS 02041650 2008-12-14 8670 6 9.30 USGS 02041650 2009-11-15 10000 6 9.96 USGS 02041650 2011-09-27 4550 6 6.76 USGS 02041650 2012-03-27 5030 6 7.06 USGS 02041650 2013-01-18 7720 6 8.52 USGS 02041650 2014-05-22 9170 6 9.20 USGS 02041650 2015-03-08 4360 6 6.64 USGS 02041650 2015-12-26 14500 6 11.34 USGS 02041650 2017-01-26 15:15 6230 6 7.75 USGS 02041650 2018-05-20 15:15 12000 6 10.38 USGS 02041650 2018-10-14 21100 6 13.86 USGS 02041650 2020-08-17 21:15 7340 6 8.55 USGS 02041650 2020-11-17 22:30 11600 6 10.58 USGS 02041650 2022-03-19 08:00 5940 7.76 USGS 02041650 2023-04-30 21:00 4500 6.83