# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-12-01 02:16:04 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 01588000 PINEY RUN NEAR SYKESVILLE, 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 01588000 1932-06-15 715 4.48 USGS 01588000 1933-08-23 1800 6.30 USGS 01588000 1934-09-16 1460 5.80 USGS 01588000 1935-07-20 690 4.44 USGS 01588000 1936-01-03 476 3.99 2 1936-03-03 4.16 1 USGS 01588000 1937-06-17 790 4.66 USGS 01588000 1937-11-13 1280 5.52 USGS 01588000 1939-01-30 647 4.31 USGS 01588000 1940-09-25 528 4.10 USGS 01588000 1940-11-26 232 3.25 USGS 01588000 1942-08-09 835 5.10 USGS 01588000 1942-10-16 500 4.40 USGS 01588000 1943-11-08 1780 6.53 USGS 01588000 1945-07-31 755 4.94 USGS 01588000 1946-07-24 2100 6.95 USGS 01588000 1947-06-08 945 5.31 USGS 01588000 1948-06-27 1590 6.31 USGS 01588000 1949-05-15 608 4.64 USGS 01588000 1950-05-31 1280 5.87 USGS 01588000 1950-11-25 608 4.64 USGS 01588000 1952-05-25 1480 6.16 USGS 01588000 1952-11-21 808 5.07 USGS 01588000 1954-05-03 275 3.80 USGS 01588000 1955-08-13 1230 5.95 USGS 01588000 1956-07-20 7380 12.00 USGS 01588000 1957-09-13 1080 5.70 USGS 01588000 1958-01-25 704 4.92 USGS 01588000 1959-06-05 477 4.38 USGS 01588000 1960-06-15 281 3.82 USGS 01588000 1961-02-25 410 4.20 USGS 01588000 1962-02-26 396 4.16 USGS 01588000 1963-03-06 521 4.79 USGS 01588000 1964-01-09 730 5.43 USGS 01588000 1965-02-07 280 4.15 USGS 01588000 1966-02-13 450 2 4.70 5 USGS 01588000 1967-08-27 2100 7.17 USGS 01588000 1968-09-10 220 3.62 USGS 01588000 1969-09-04 120 3.21 USGS 01588000 1970-07-09 200 3.55 USGS 01588000 1971-09-11 2000 7.68 USGS 01588000 1972-06-22 9700 11.00 USGS 01588000 1972-12-08 381 4.20 USGS 01588000 1974-03-30 136 3.57