# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-05-02 07:01:26 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 01671020 NORTH ANNA RIVER AT HART CORNER NEAR DOSWELL, 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 01671020 1979-10-03 7800 1,6 USGS 01671020 1981-05-12 397 6 4.88 USGS 01671020 1982-02-05 3650 1,6 USGS 01671020 1983-04-26 5820 6 17.22 USGS 01671020 1984-03-30 11100 6 21.28 USGS 01671020 1985-08-19 3750 6 15.06 USGS 01671020 1985-11-06 9980 6 20.47 USGS 01671020 1987-04-18 8020 6 18.98 USGS 01671020 1987-11-30 4490 6 15.92 USGS 01671020 1989-05-07 6610 6 18.00 USGS 01671020 1990-05-30 6730 6 18.10 USGS 01671020 1991-01-13 4930 6 16.38 USGS 01671020 1992-02-27 2310 6 12.48 USGS 01671020 1993-03-06 10400 6 20.83 USGS 01671020 1994-03-29 12000 6 21.80 USGS 01671020 1995-06-28 8860 6 19.78 USGS 01671020 1996-09-07 11600 6 21.60 USGS 01671020 1996-10-20 5230 6 16.68 USGS 01671020 1998-02-06 9350 6 20.13 USGS 01671020 1999-03-16 3460 6 14.70 USGS 01671020 2000-04-18 2990 6 13.96 USGS 01671020 2001-03-31 4000 6 15.37 USGS 01671020 2002-04-30 245 6 4.22 USGS 01671020 2003-02-24 9150 6 20.01 USGS 01671020 2003-12-12 5960 6 18.18 USGS 01671020 2005-01-15 5120 6 16.66 USGS 01671020 2005-12-17 2520 6 12.60 USGS 01671020 2007-03-18 5340 6 16.88 USGS 01671020 2008-05-11 5090 6 16.63 USGS 01671020 2009-06-06 3290 6 14.43 USGS 01671020 2009-12-10 5250 6 16.79 USGS 01671020 2011-09-09 3210 6 15.55 USGS 01671020 2011-12-09 7010 6 19.70 USGS 01671020 2013-06-11 3600 6 14.83 USGS 01671020 2014-05-02 12400 6 23.09 USGS 01671020 2015-04-21 2700 6 13.29 USGS 01671020 2016-02-26 4390 6 15.81 USGS 01671020 2016-10-09 14:45 1630 6 11.31 USGS 01671020 2018-06-23 19:30 14000 23.09 USGS 01671020 2018-10-13 5530 17.07 USGS 01671020 2020-02-08 10:45 3390 14.57 USGS 01671020 2020-11-12 21:30 10000 2 USGS 01671020 2022-03-25 12:45 1760 11.70 USGS 01671020 2023-04-30 3430 6 14.62