# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-11-01 10:28:48 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 01653500 HENSON CREEK AT OXON HILL, 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 01653500 1948-12-04 745 4.26 USGS 01653500 1950-09-11 2200 6.63 USGS 01653500 1950-11-25 602 3.56 USGS 01653500 1952-09-01 1890 6.26 USGS 01653500 1953-05-05 2920 7.27 USGS 01653500 1953-12-14 471 3.06 USGS 01653500 1955-08-13 3000 7.33 USGS 01653500 1955-10-14 1710 6.02 USGS 01653500 1956-11-01 494 3.15 USGS 01653500 1958-08-25 1750 6.07 USGS 01653500 1959-06-02 1010 4.72 USGS 01653500 1960-09-12 1450 5.62 USGS 01653500 1961-04-13 852 4.32 USGS 01653500 1962-05-31 648 3.72 USGS 01653500 1963-03-12 1130 5.01 USGS 01653500 1963-11-07 845 4.30 USGS 01653500 1965-03-05 834 4.27 USGS 01653500 1966-09-14 625 3.64 USGS 01653500 1966-10-19 1030 4.77 USGS 01653500 1968-01-14 880 4.40 USGS 01653500 1969-07-22 1840 6.20 USGS 01653500 1970-04-02 2050 6.46 USGS 01653500 1971-08-04 3440 7.63 USGS 01653500 1972-06-22 2450 6.89 USGS 01653500 1972-12-08 760 4.15 USGS 01653500 1974-03-30 1140 5.03 USGS 01653500 1975-09-26 2720 7.12 USGS 01653500 1976-01-01 1070 4.87 USGS 01653500 1976-10-26 766 4.16 USGS 01653500 1978-08-05 2340 6.76