# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-10-04 21:01:47 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 01654000 ACCOTINK CREEK NEAR ANNANDALE, 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 01654000 1947-06-08 3950 9.90 3 USGS 01654000 1948-06-20 780 5.20 3 USGS 01654000 1948-12-04 940 5.80 3,6 USGS 01654000 1950-09-11 910 5.74 3 USGS 01654000 1950-12-04 1300 6.73 3 USGS 01654000 1952-09-01 2560 9.10 3 USGS 01654000 1953-05-05 2120 8.41 3 USGS 01654000 1953-12-14 584 4.20 3 USGS 01654000 1955-08-13 2500 9.05 3 USGS 01654000 1956-09-27 1270 7.05 3 USGS 01654000 1957-04-05 990 6.12 3 USGS 01654000 1957-12-21 865 5.69 3 USGS 01654000 1959-09-02 965 5.99 3 USGS 01654000 1960-02-19 1140 6.62 3 USGS 01654000 1961-08-26 1600 7.77 3 USGS 01654000 1962-03-12 915 5.81 3 USGS 01654000 1963-06-30 2240 8.82 3 USGS 01654000 1964-05-13 1650 7.86 3 USGS 01654000 1965-03-05 1500 C 7.58 3 USGS 01654000 1966-09-14 3400 C 9.74 3 USGS 01654000 1967-08-24 7870 C 11.84 3 USGS 01654000 1968-09-10 3500 C 9.46 3 USGS 01654000 1969-07-22 7870 C 11.85 3 USGS 01654000 1970-04-14 1300 C 7.10 3,6 USGS 01654000 1971-07-30 2380 C 9.20 USGS 01654000 1972-06-22 12000 C 15.96 USGS 01654000 1973-07-10 3270 C 10.69 USGS 01654000 1974-08-30 1890 C 8.79 USGS 01654000 1975-09-26 6420 C 12.90 USGS 01654000 1976-01-01 2180 C 9.14 USGS 01654000 1976-10-26 2020 C 8.91 USGS 01654000 1978-01-26 2900 C 9.98 USGS 01654000 1979-09-06 4480 C 11.54 USGS 01654000 1979-10-01 3100 C 10.23 USGS 01654000 1981-08-12 3170 C 10.27 USGS 01654000 1982-06-13 1190 C 7.41 USGS 01654000 1983-06-21 3120 C 10.22 USGS 01654000 1984-08-13 4250 C 11.31 USGS 01654000 1985-02-12 2100 C 9.03 USGS 01654000 1986-04-16 777 C 6.49 USGS 01654000 1986-12-24 2710 C 9.81 USGS 01654000 1988-05-19 1520 C 8.08 USGS 01654000 1989-05-06 8820 C 14.40 USGS 01654000 1990-08-10 2040 C 8.95 USGS 01654000 1990-10-23 4780 C 11.75 USGS 01654000 1992-04-22 2160 C 9.11 USGS 01654000 1993-04-16 2270 C 9.26 USGS 01654000 1993-11-28 4040 C 11.13 USGS 01654000 1995-01-15 853 C 6.76 USGS 01654000 1996-09-04 5230 C 12.09 USGS 01654000 1997-05-26 4100 C 11.18 USGS 01654000 1998-03-21 2670 C 9.73 USGS 01654000 1999-09-16 2320 C 9.31 USGS 01654000 2000-07-14 2710 C 9.77 USGS 01654000 2001-08-11 5880 C 12.56 USGS 01654000 2002-06-19 1610 C 8.33 USGS 01654000 2003-09-23 4380 C 11.40 USGS 01654000 2003-12-11 4280 C 11.31 USGS 01654000 2005-01-14 3460 C 10.56 USGS 01654000 2006-06-26 7660 C 13.72 USGS 01654000 2006-11-16 4430 C 11.44 USGS 01654000 2008-09-06 12600 C 16.26 USGS 01654000 2009-05-15 3420 C 10.52 USGS 01654000 2010-09-30 1700 C 9.47 USGS 01654000 2011-09-08 14000 C 16.32 USGS 01654000 2012-06-01 2690 C 10.54 USGS 01654000 2013-07-12 3210 C 11.14 USGS 01654000 2014-05-16 3510 C 11.35 USGS 01654000 2015-06-21 2140 C 9.94 USGS 01654000 2016-02-24 1930 C 9.35 2 2016-02-24 1200 9.77 1 USGS 01654000 2017-07-29 04:30 2500 C 10.42 USGS 01654000 2018-07-21 22:45 4950 C 12.39 USGS 01654000 2019-07-08 13:37 5720 C 12.86 USGS 01654000 2020-04-13 08:15 1450 C 9.03 USGS 01654000 2021-08-20 12:45 3530 C 11.36 USGS 01654000 2021-10-26 01:30 2040 C 9.92 USGS 01654000 2023-07-05 20:15 1230 C 8.18