# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-04-18 04:18:22 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 01483155 SILVER LAKE TRIBUTARY AT MIDDLETOWN, DE # # 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 01483155 2001-05-26 18:15 50.0 2.07 USGS 01483155 2002-05-02 08:45 58.0 2.17 USGS 01483155 2003-03-02 98.0 8 USGS 01483155 2004-07-12 19:00 212 3.67 USGS 01483155 2005-09-15 10:15 99.0 2.68 USGS 01483155 2006-07-22 22:15 168 3.33 USGS 01483155 2007-04-15 16:00 101 2.70 USGS 01483155 2008-09-06 18:30 36.0 1.92 USGS 01483155 2009-06-09 18:45 114 2.84 USGS 01483155 2009-12-09 08:15 94.0 2.63 USGS 01483155 2011-08-27 23:15 398 4.64 USGS 01483155 2011-12-07 23:00 59.0 2.18 USGS 01483155 2012-10-29 18:30 104 2.74 USGS 01483155 2014-04-30 20:30 44.0 1.93 USGS 01483155 2015-06-27 21:00 95.0 2.65 USGS 01483155 2015-12-25 19:15 146 3.09 USGS 01483155 2017-07-06 16:15 550 5.55 USGS 01483155 2018-08-31 18:30 543 5.51 USGS 01483155 2018-11-24 21:30 109 2.61 USGS 01483155 2020-08-04 10:30 251 3.71 USGS 01483155 2020-11-12 02:00 180 3.15 USGS 01483155 2021-10-29 19:15 22.3 1.52 USGS 01483155 2023-06-23 16:23 172 2 3.09