# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-05-05 20:12:56 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 01495000 BIG ELK CREEK AT ELK MILLS, 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 01495000 1884-06-00 18000 7,Bd 19.00 Bd USGS 01495000 1932-06-15 3020 8.00 USGS 01495000 1933-08-23 7530 12.40 USGS 01495000 1934-03-03 2620 7.50 USGS 01495000 1935-07-09 4720 9.80 USGS 01495000 1936-01-03 3250 8 USGS 01495000 1937-07-05 10600 14.50 1884 USGS 01495000 1937-10-23 2310 7.17 USGS 01495000 1939-08-19 2620 7.50 USGS 01495000 1940-03-15 2700 7.55 USGS 01495000 1941-07-02 5680 10.35 USGS 01495000 1942-08-13 3380 8.36 USGS 01495000 1943-05-12 2860 7.75 USGS 01495000 1944-09-13 2380 7.20 USGS 01495000 1945-09-18 6030 10.48 USGS 01495000 1946-07-23 7080 11.14 USGS 01495000 1947-07-07 5220 9.64 USGS 01495000 1948-02-14 2120 7.08 1 USGS 01495000 1949-08-05 1720 6.04 USGS 01495000 1950-08-03 3400 7.94 USGS 01495000 1950-11-25 2620 7.10 USGS 01495000 1951-12-21 3280 7.78 USGS 01495000 1952-11-22 2740 7.23 USGS 01495000 1953-12-14 1340 5.61 USGS 01495000 1955-08-14 5860 10.13 USGS 01495000 1956-01-30 1540 5.86 USGS 01495000 1956-11-02 2880 7.38 USGS 01495000 1958-01-25 2590 7.07 USGS 01495000 1959-09-03 3420 7.92 USGS 01495000 1960-09-12 6180 10.40 USGS 01495000 1961-01-01 1610 5.67 USGS 01495000 1962-03-12 2180 6.61 USGS 01495000 1963-03-06 1620 5.93 USGS 01495000 1964-01-09 3030 7.53 USGS 01495000 1965-02-08 2020 6.43 USGS 01495000 1966-02-13 3690 8.19 USGS 01495000 1967-08-10 6120 10.35 USGS 01495000 1968-01-14 1570 5.90 USGS 01495000 1969-07-28 1050 5.23 USGS 01495000 1970-04-02 2640 7.12 USGS 01495000 1971-02-13 4030 8.53 2 1971-02-07 11.70 1 USGS 01495000 1972-06-22 8720 13.46 USGS 01495000 1973-07-04 2010 6.76 USGS 01495000 1973-12-21 2040 6.80 USGS 01495000 1975-07-14 4540 9.64 USGS 01495000 1976-01-27 1530 6.07 USGS 01495000 1977-03-22 1670 6.28 USGS 01495000 1978-01-26 5120 10.21 USGS 01495000 1979-01-24 4250 9.36 USGS 01495000 1980-03-21 853 4.98 USGS 01495000 1981-08-08 2030 6.78 USGS 01495000 1982-01-04 1740 6.38 USGS 01495000 1983-05-23 1670 6.22 USGS 01495000 1983-12-22 1480 5.90 USGS 01495000 1985-02-12 5410 8.93 USGS 01495000 1986-01-26 880 4.75 USGS 01495000 1986-12-25 2180 6.18 USGS 01495000 1988-05-19 4180 7.96 USGS 01495000 1989-07-05 5030 8.64 USGS 01495000 1990-05-29 2010 6.01 USGS 01495000 1991-01-12 1360 5.37 USGS 01495000 1992-03-27 1350 5.36 USGS 01495000 1992-12-11 3980 7.79 USGS 01495000 1994-01-28 5220 9.25 USGS 01495000 1995-01-20 3090 6.99 USGS 01495000 1996-01-19 7030 11.29 USGS 01495000 1996-10-19 5110 9.12 USGS 01495000 1998-01-23 19:15 1380 5.39 USGS 01495000 1999-09-16 17:30 9780 14.54 USGS 01495000 2000-03-22 04:00 4370 8.30 USGS 01495000 2002-05-18 16:15 381 3.82 USGS 01495000 2003-06-20 21:45 3570 7.49 USGS 01495000 2004-09-28 22:45 5270 9.30 USGS 01495000 2004-11-28 09:00 2360 6.36 USGS 01495000 2006-06-26 21:45 2890 6.83 USGS 01495000 2007-03-02 09:45 3220 7.13 USGS 01495000 2008-02-13 12:30 1350 5.36 USGS 01495000 2008-12-12 05:00 2290 6.29 USGS 01495000 2009-12-09 10:45 3000 6.92 USGS 01495000 2011-08-28 00:45 6170 10.30 USGS 01495000 2011-11-23 09:15 2590 6.57 USGS 01495000 2013-06-28 19:30 5250 9.28 USGS 01495000 2014-04-30 20:15 8000 12.65 USGS 01495000 2015-03-11 00:45 1470 7.04 USGS 01495000 2016-02-25 01:30 2510 8.62 USGS 01495000 2017-07-24 03:15 1520 7.14 USGS 01495000 2018-07-23 02:30 6020 11.51 USGS 01495000 2018-11-25 00:15 2870 9.04 USGS 01495000 2020-08-04 12:00 8500 12.90 USGS 01495000 2021-09-02 01:45 13600 15.08 USGS 01495000 2022-04-19 03:45 1470 7.05