# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-12-17 23:50:56 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 01660920 ZEKIAH SWAMP RUN NEAR NEWTOWN, 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 01660920 1984-03-29 1740 4.71 USGS 01660920 1985-09-28 919 4.08 USGS 01660920 1985-11-30 22:30 982 4.14 USGS 01660920 1986-12-25 1300 4.41 USGS 01660920 1988-01-20 961 4.12 USGS 01660920 1989-06-07 1650 4.49 USGS 01660920 1990-05-29 1250 4.23 2 1990-01-02 4.30 1 USGS 01660920 1991-01-13 825 3.88 USGS 01660920 1992-09-07 1250 4.23 USGS 01660920 1993-03-05 2170 4.77 USGS 01660920 1994-03-29 3380 5.26 USGS 01660920 1995-03-09 873 3.91 USGS 01660920 1996-01-20 2170 4.77 USGS 01660920 1996-12-14 863 3.90 USGS 01660920 1998-02-05 17:30 1840 4.60 USGS 01660920 1999-09-17 03:30 4080 5.51 USGS 01660920 2000-03-22 21:00 863 3.90 USGS 01660920 2000-12-18 1340 4.30 USGS 01660920 2002-04-30 03:30 222 2.85 USGS 01660920 2003-02-23 2050 4.71 USGS 01660920 2003-11-07 09:15 985 4.02 USGS 01660920 2005-05-21 13:15 954 3.99 USGS 01660920 2006-11-17 14:15 1680 4.51 USGS 01660920 2008-05-12 17:45 5740 5.54 USGS 01660920 2009-06-06 21:15 544 3.23 USGS 01660920 2009-12-26 22:15 2120 4.36 USGS 01660920 2011-09-08 10:00 16500 6.81 USGS 01660920 2011-12-08 09:15 4430 5.05 USGS 01660920 2012-10-30 22:15 2620 4.51 USGS 01660920 2014-05-01 11:45 3370 4.76 USGS 01660920 2015-06-28 04:00 1230 3.91 USGS 01660920 2016-02-17 11:15 675 3.43 USGS 01660920 2017-08-13 09:00 1130 3.78 USGS 01660920 2018-02-11 18:45 2520 4.72 USGS 01660920 2018-10-12 09:15 8730 6.05 USGS 01660920 2020-08-04 20:30 10300 6.09 USGS 01660920 2020-11-12 17:30 4620 5.09 USGS 01660920 2022-04-19 10:45 989 2 3.62 USGS 01660920 2022-12-17 01:15 923 3.55 USGS 01660920 2023-12-18 19:00 2250 4.71