# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-04-19 20:01:40 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 01643000 MONOCACY RIVER AT JUG BRIDGE 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 01643000 1889-06-00 56000 7,Bd 30.00 Bd 1889 USGS 01643000 1929-10-03 18500 2 16.00 5 USGS 01643000 1931-04-02 10800 11.37 USGS 01643000 1932-05-13 14900 13.76 USGS 01643000 1933-08-24 51000 28.10 USGS 01643000 1934-09-17 33500 21.60 USGS 01643000 1934-12-02 22800 17.20 USGS 01643000 1936-03-12 20900 16.40 USGS 01643000 1937-04-27 33800 21.70 USGS 01643000 1937-11-14 21800 16.75 USGS 01643000 1939-02-04 16800 14.46 USGS 01643000 1940-09-01 24100 17.85 USGS 01643000 1941-04-06 16500 14.35 USGS 01643000 1942-08-14 27900 20.29 USGS 01643000 1943-05-21 24600 18.74 USGS 01643000 1944-01-04 25300 19.01 USGS 01643000 1945-09-19 16300 15.50 USGS 01643000 1946-06-03 24600 19.27 USGS 01643000 1947-05-22 11000 12.57 USGS 01643000 1948-01-02 16100 15.43 USGS 01643000 1949-07-13 29700 21.30 USGS 01643000 1950-03-23 15500 15.09 USGS 01643000 1950-12-05 20100 17.30 USGS 01643000 1952-04-27 22500 18.41 USGS 01643000 1952-11-22 21000 17.73 USGS 01643000 1954-03-02 6590 9.37 USGS 01643000 1955-03-23 17700 16.17 USGS 01643000 1956-03-15 12200 13.20 USGS 01643000 1957-04-06 11000 12.37 USGS 01643000 1957-12-21 18200 16.41 USGS 01643000 1959-03-07 7510 9.88 USGS 01643000 1960-04-05 12900 13.62 USGS 01643000 1961-04-14 13700 14.12 USGS 01643000 1962-03-13 11900 12.97 USGS 01643000 1963-03-06 8400 10.60 USGS 01643000 1964-01-10 13600 14.08 USGS 01643000 1965-03-06 19700 17.15 USGS 01643000 1966-09-15 22400 18.34 USGS 01643000 1967-03-08 22600 18.42 USGS 01643000 1968-05-29 11400 12.67 USGS 01643000 1969-09-04 6930 9.40 USGS 01643000 1970-07-10 18300 16.48 USGS 01643000 1971-02-14 13300 13.88 USGS 01643000 1972-06-23 81600 35.90 USGS 01643000 1972-12-09 12200 13.19 USGS 01643000 1973-12-27 17900 16.28 USGS 01643000 1975-09-26 61200 30.80 USGS 01643000 1976-01-01 14400 14.52 USGS 01643000 1976-10-10 43500 25.38 USGS 01643000 1978-01-27 29100 20.33 USGS 01643000 1979-09-06 33700 22.03 USGS 01643000 1980-03-22 21800 17.34 USGS 01643000 1981-02-24 15800 14.42 USGS 01643000 1982-06-14 14600 13.81 USGS 01643000 1983-04-11 26600 19.34 USGS 01643000 1984-02-15 28300 20.01 USGS 01643000 1985-02-13 26700 19.38 USGS 01643000 1986-03-15 14300 13.66 USGS 01643000 1986-12-25 13900 14.04 USGS 01643000 1988-05-19 23300 18.47 USGS 01643000 1989-05-07 20000 17.04 USGS 01643000 1990-01-30 14200 14.22 USGS 01643000 1990-10-24 16000 15.18 USGS 01643000 1992-04-22 13200 13.64 USGS 01643000 1993-03-05 23200 18.41 USGS 01643000 1993-12-06 28800 20.64 USGS 01643000 1995-01-21 18100 16.18 USGS 01643000 1996-01-20 37400 23.67 USGS 01643000 1996-12-14 22600 18.15 USGS 01643000 1998-01-09 07:00 21700 17.79 USGS 01643000 1999-09-30 20:00 11400 12.54 USGS 01643000 2000-03-22 17:00 18700 16.43 USGS 01643000 2000-12-18 01:30 17500 15.89 USGS 01643000 2002-03-21 05:30 6110 8.79 USGS 01643000 2003-09-24 02:15 24100 19.71 USGS 01643000 2003-12-12 03:00 27400 20.92 USGS 01643000 2005-04-03 11:30 18600 17.43 USGS 01643000 2006-06-28 20:15 14500 15.29 USGS 01643000 2007-03-03 01:00 18100 17.07 USGS 01643000 2008-05-13 18000 17.04 USGS 01643000 2008-12-12 20:15 17100 16.54 USGS 01643000 2009-12-27 06:30 20300 18.12 USGS 01643000 2011-04-17 20:15 26300 20.61 USGS 01643000 2011-11-23 22:45 25900 20.25 USGS 01643000 2012-10-30 21:15 29700 21.78 USGS 01643000 2014-05-01 07:30 23500 19.21 USGS 01643000 2015-06-28 16:15 16100 15.52 USGS 01643000 2016-02-04 15:30 18800 16.71 USGS 01643000 2017-05-06 04:30 11900 12.77 USGS 01643000 2018-09-10 16:45 29000 21.36 USGS 01643000 2019-05-06 04:00 18700 16.63 USGS 01643000 2020-05-01 12:00 17100 15.83 USGS 01643000 2021-09-02 15:15 31000 22.10 USGS 01643000 2022-05-08 01:45 20800 17.67 USGS 01643000 2022-12-23 20:15 15000 14.66