# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-11-22 08:26:05 EST # # ---------------------------------- 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 01581500 BYNUM RUN AT BEL AIR, MD # # 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 01581500 1945-07-19 3620 6.25 USGS 01581500 1945-12-25 565 5.40 USGS 01581500 1947-06-14 1920 6.01 USGS 01581500 1948-01-01 633 5.48 USGS 01581500 1949-03-23 565 5.40 USGS 01581500 1950-09-10 3080 6.18 USGS 01581500 1955-08-13 1010 4.86 USGS 01581500 1956-09-06 576 3.86 USGS 01581500 1956-11-02 1700 6.04 USGS 01581500 1957-12-20 955 4.75 USGS 01581500 1959-09-02 1700 6.05 USGS 01581500 1960-09-12 1520 5.78 USGS 01581500 1961-07-24 759 4.32 USGS 01581500 1962-03-12 702 4.18 USGS 01581500 1963-03-06 734 4.26 USGS 01581500 1964-01-09 772 4.35 USGS 01581500 1965-02-07 1120 5.09 USGS 01581500 1966-02-13 856 5.54 USGS 01581500 1967-08-25 1280 6.56 USGS 01581500 1968-07-19 1020 5.94 USGS 01581500 1969-09-03 169 2.42 USGS 01581500 1970-08-20 876 4.58 USGS 01581500 1971-08-01 1650 5.72 USGS 01581500 1972-06-22 4650 8.32 USGS 01581500 1999-09-16 14:45 3550 9.91 USGS 01581500 2000-03-21 17:30 1490 6.06 USGS 01581500 2000-12-17 07:30 1450 5.96 USGS 01581500 2002-05-02 08:45 330 2.93 USGS 01581500 2003-09-23 07:30 2200 7.49 USGS 01581500 2004-07-27 23:45 1580 6.24 USGS 01581500 2004-11-28 05:15 1290 5.62 USGS 01581500 2006-06-26 05:30 3150 9.23 USGS 01581500 2006-11-16 18:45 1700 6.49 USGS 01581500 2008-07-23 23:00 1470 6.01 USGS 01581500 2009-05-07 02:00 1080 5.13 USGS 01581500 2010-09-30 11:00 2670 8.36 USGS 01581500 2010-10-01 01:15 2600 8.23 USGS 01581500 2011-11-23 05:15 1170 5.35 USGS 01581500 2013-06-11 2010 7.11 USGS 01581500 2014-04-30 17:15 2340 7.75 USGS 01581500 2015-08-20 5600 11.15 USGS 01581500 2016-02-24 21:30 3040 8.50 USGS 01581500 2017-08-18 3680 9.27 USGS 01581500 2018-07-27 18:45 1800 6.63 USGS 01581500 2019-07-11 17:53 1920 6.85 USGS 01581500 2020-08-04 11:30 1370 6.39 USGS 01581500 2021-06-03 20:15 3320 9.18 USGS 01581500 2021-10-29 20:30 637 4.57 USGS 01581500 2022-12-23 00:30 943 5.73