# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-12-01 02:09:06 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 01589500 SAWMILL CREEK AT GLEN BURNIE, 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 01589500 1933-08-00 4.00 Bd USGS 01589500 1945-07-18 36.0 2.55 USGS 01589500 1946-07-22 30.0 2.46 USGS 01589500 1947-06-14 24.0 2.38 USGS 01589500 1948-08-01 45.0 2.67 USGS 01589500 1949-05-23 54.0 2.79 USGS 01589500 1950-08-20 74.0 3.31 1 USGS 01589500 1951-09-02 82.0 3.27 USGS 01589500 1952-09-01 157 4.77 USGS 01589500 1965-08-18 92.0 3.50 USGS 01589500 1966-09-14 60.0 2.88 USGS 01589500 1967-08-25 78.0 3.19 USGS 01589500 1968-09-10 90.0 3.50 USGS 01589500 1969-09-02 59.0 2.90 USGS 01589500 1970-07-20 45.0 2.70 USGS 01589500 1984-03-29 91.0 3.64 USGS 01589500 1985-09-27 113 4.03 USGS 01589500 1986-07-20 26.0 2.44 USGS 01589500 1987-09-18 99.0 3.78 USGS 01589500 1987-11-29 40.0 2.70 USGS 01589500 1989-08-29 178 5.12 USGS 01589500 1990-07-12 90.0 3.63 USGS 01589500 1991-03-23 96.0 3.74 USGS 01589500 1991-10-17 24.0 2.39 USGS 01589500 1993-03-04 63.0 3.15 USGS 01589500 1994-07-27 143 4.55 USGS 01589500 1995-08-06 75.0 3.35 USGS 01589500 1996-01-19 119 4.14 USGS 01589500 1996-12-13 84.0 3.51 USGS 01589500 1998-03-21 04:00 60.0 3.09 USGS 01589500 1999-09-16 15:15 294 5.74 USGS 01589500 2000-07-26 13:30 75.0 2.96 USGS 01589500 2001-08-30 22:15 84.0 3.25 USGS 01589500 2002-04-18 19:00 88.0 3.31 USGS 01589500 2003-09-23 10:45 144 4.08 USGS 01589500 2004-07-28 05:45 128 4.04 USGS 01589500 2005-03-23 16:30 88.0 3.51 USGS 01589500 2005-10-08 19:15 118 3.92 USGS 01589500 2007-04-15 15:15 77.0 3.35 USGS 01589500 2008-05-12 08:30 201 4.88 USGS 01589500 2009-05-07 04:00 66.0 3.16 USGS 01589500 2010-03-13 17:15 151 4.32 USGS 01589500 2011-09-08 02:30 400 6.39 USGS 01589500 2011-12-07 23:15 121 3.85 USGS 01589500 2012-10-29 22:15 240 5.08 USGS 01589500 2014-08-12 16:30 1180 7.61 USGS 01589500 2015-06-27 21:15 219 4.89 USGS 01589500 2016-02-24 23:30 134 3.99 USGS 01589500 2017-07-29 05:15 175 4.45 USGS 01589500 2018-07-22 518 6.80 USGS 01589500 2018-11-24 22:15 85.4 3.33 USGS 01589500 2020-08-12 22:30 129 3.76 USGS 01589500 2020-11-30 16:45 189 4.53 USGS 01589500 2021-10-29 20:30 145 3.97 USGS 01589500 2023-07-24 10:45 113 3.55