# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-04-19 12:16:25 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 01669520 DRAGON SWAMP AT MASCOT, 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 01669520 1982-03-23 622 6.56 USGS 01669520 1983-04-17 2530 8.85 USGS 01669520 1984-03-27 1470 7.92 USGS 01669520 1985-09-28 1720 8.17 USGS 01669520 1985-10-24 745 6.81 USGS 01669520 1987-04-27 601 6.45 USGS 01669520 1988-02-14 482 6.10 USGS 01669520 1989-04-09 745 6.81 USGS 01669520 1990-05-31 1690 8.14 USGS 01669520 1991-01-14 586 6.48 USGS 01669520 1992-08-18 601 6.29 USGS 01669520 1993-03-06 1130 7.47 USGS 01669520 1994-03-04 2750 9.00 USGS 01669520 1995-03-11 460 5.89 USGS 01669520 1996-01-21 952 7.16 USGS 01669520 1996-10-11 733 6.68 USGS 01669520 1998-02-06 2800 9.39 USGS 01669520 1999-09-17 6600 13.21 USGS 01669520 2000-09-05 848 6.63 USGS 01669520 2001-08-14 1710 7.97 USGS 01669520 2002-04-02 147 5.00 USGS 01669520 2003-09-20 2410 9.02 USGS 01669520 2004-07-26 2930 9.54 USGS 01669520 2005-04-03 603 6.25 USGS 01669520 2006-09-01 1520 7.70 USGS 01669520 2006-10-09 1280 7.64 USGS 01669520 2008-05-12 567 6.40 USGS 01669520 2009-08-23 634 6.58 USGS 01669520 2009-11-14 2190 8.62 USGS 01669520 2011-08-29 3450 10.42 USGS 01669520 2012-03-03 533 7.08 USGS 01669520 2013-03-08 771 7.33 USGS 01669520 2014-05-02 570 6.86 USGS 01669520 2015-07-02 494 6.67 USGS 01669520 2015-12-26 927 7.64 USGS 01669520 2016-10-11 08:15 761 7.31 USGS 01669520 2018-06-06 07:30 922 7.63 USGS 01669520 2018-10-13 01:15 6650 12.28 USGS 01669520 2020-09-11 23:30 1030 7.82 USGS 01669520 2021-03-26 18:45 716 7.21 USGS 01669520 2022-08-11 00:45 156 6.02 USGS 01669520 2023-07-16 18:15 279 5.90