# # U.S. Geological Survey # National Water Information System # Retrieved: 2025-02-21 08:11:07 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 01642500 Linganore Creek near Frederick, 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 01642500 1933-08-23 2920 10.50 3 USGS 01642500 1934-09-16 2720 10.00 3 USGS 01642500 1934-12-01 1080 5.56 3 USGS 01642500 1936-03-11 1680 7.40 2,3 1936-03-11 1200 8.40 1 USGS 01642500 1937-06-17 2040 8.30 3 USGS 01642500 1937-11-13 2120 8.50 3 USGS 01642500 1939-01-30 1840 7.80 3 USGS 01642500 1940-09-25 2480 9.40 3 USGS 01642500 1941-04-05 1560 7.07 3 USGS 01642500 1942-08-14 3400 11.72 3 USGS 01642500 1942-10-16 1920 8.04 3 USGS 01642500 1944-01-04 3000 10.68 3 USGS 01642500 1945-08-01 2960 10.60 3 USGS 01642500 1946-06-02 3600 12.22 3 USGS 01642500 1947-08-20 2050 7.37 6 USGS 01642500 1948-01-01 2950 9.19 USGS 01642500 1948-12-30 2400 8.13 USGS 01642500 1950-03-23 2750 8.75 USGS 01642500 1950-11-25 3350 10.01 USGS 01642500 1952-04-27 4100 11.34 USGS 01642500 1952-11-22 2730 8.76 USGS 01642500 1954-05-03 2180 7.67 USGS 01642500 1955-08-13 4130 11.39 USGS 01642500 1956-07-04 2860 9.03 USGS 01642500 1957-04-06 1610 6.52 USGS 01642500 1957-12-20 3740 10.74 USGS 01642500 1959-08-23 1090 5.69 USGS 01642500 1960-09-12 1150 5.79 USGS 01642500 1961-04-13 1800 6.90 2 1961-02-18 8.91 1 USGS 01642500 1962-02-26 1790 6.88 USGS 01642500 1963-03-06 1960 7.22 2 1963-03-02 9.41 1 USGS 01642500 1964-01-09 3250 9.80 USGS 01642500 1965-03-05 2220 7.75 USGS 01642500 1966-09-14 3940 11.07 USGS 01642500 1967-03-07 2940 9.17 USGS 01642500 1968-01-14 3200 9.71 USGS 01642500 1969-07-26 3730 10.71 USGS 01642500 1970-01-29 1860 7.01 USGS 01642500 1971-08-04 3200 9.69 USGS 01642500 1972-06-22 20100 19.46 USGS 01642500 1973-06-04 880 5 5.32 USGS 01642500 1974-09-14 1390 5 6.27 USGS 01642500 1975-09-26 7850 5 13.85 USGS 01642500 1976-01-01 3000 5 9.11 USGS 01642500 1976-10-09 3170 5 9.40 USGS 01642500 1978-01-26 5570 5 12.21 USGS 01642500 1979-09-06 5390 5 12.06 USGS 01642500 1979-10-01 7090 5 13.34 USGS 01642500 1981-02-11 752 5 5.06 USGS 01642500 1982-06-13 2740 5,8