# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-05-02 16:59:58 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 01594950 MCMILLAN F NEAR FORT PENDLETON, 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 01594950 1987-01-19 48.0 2.42 USGS 01594950 1988-01-20 03:15 64.0 2.81 USGS 01594950 1989-07-13 93.0 3.18 USGS 01594950 1990-05-26 15:00 194 4.91 USGS 01594950 1990-12-30 91.0 3.30 USGS 01594950 1992-07-11 03:00 4.61 1 USGS 01594950 1993-04-01 106 3.56 USGS 01594950 1994-02-10 414 7.23 USGS 01594950 1995-08-06 307 5.91 USGS 01594950 1996-01-19 05:45 286 5.99 USGS 01594950 1996-12-01 100 3.45 USGS 01594950 1998-06-30 20:15 87.0 3.22 USGS 01594950 1999-01-23 18:45 51.0 2.51 2 1999-01-10 2.82 1 USGS 01594950 2000-02-19 01:45 359 6.72 USGS 01594950 2001-07-26 15:45 465 7.67 USGS 01594950 2002-07-27 08:30 240 5.33 USGS 01594950 2003-08-12 16:00 534 8.23 USGS 01594950 2003-11-12 06:30 134 4.06 2 2004-02-06 4.17 1 USGS 01594950 2005-03-29 101 3.52 USGS 01594950 2006-04-22 12:30 66.0 2.84 USGS 01594950 2007-07-05 20:45 123 3.91 USGS 01594950 2008-03-04 23:45 106 3.63 USGS 01594950 2008-12-11 20:15 113 3.75 USGS 01594950 2010-03-13 17:00 110 3.69 USGS 01594950 2011-04-19 14:30 142 4.20 USGS 01594950 2011-11-23 01:30 79.0 3.12 USGS 01594950 2013-08-28 21:30 86.0 3.25 USGS 01594950 2014-05-16 01:15 113 3.74 USGS 01594950 2015-03-11 01:30 98.0 3.52 USGS 01594950 2016-02-03 12:30 49.0 2.52 USGS 01594950 2017-07-28 456 7.73 USGS 01594950 2018-02-16 13:15 200 5.05 USGS 01594950 2019-06-30 03:15 821 2 9.29 USGS 01594950 2019-12-17 12:15 71.1 3.06