# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-11-30 16:39:45 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 01473000 Perkiomen Creek at Graterford, PA # # 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 01473000 1915-08-04 24900 USGS 01473000 1915-12-18 10200 USGS 01473000 1917-03-12 8820 USGS 01473000 1918-02-15 15600 USGS 01473000 1919-07-21 17400 USGS 01473000 1919-11-13 6720 USGS 01473000 1921-02-28 6700 USGS 01473000 1922-03-20 4120 5.60 USGS 01473000 1923-03-16 4420 5.80 USGS 01473000 1924-04-06 7200 7.60 USGS 01473000 1925-07-26 8220 8.20 USGS 01473000 1926-03-07 3530 5.20 USGS 01473000 1926-11-16 13000 10.20 USGS 01473000 1928-07-14 21200 13.36 USGS 01473000 1929-02-26 14700 11.22 USGS 01473000 1929-10-02 15800 11.62 USGS 01473000 1931-07-14 5020 6.16 USGS 01473000 1932-03-28 12400 10.27 USGS 01473000 1933-08-23 34600 16.65 USGS 01473000 1934-09-30 19100 12.34 USGS 01473000 1935-07-09 39900 18.26 USGS 01473000 1936-01-03 16400 11.40 USGS 01473000 1937-02-22 6770 7.38 USGS 01473000 1938-09-21 14000 10.50 USGS 01473000 1939-02-03 14800 10.75 USGS 01473000 1940-05-20 22100 13.28 USGS 01473000 1940-12-17 10100 9.21 USGS 01473000 1942-08-09 30200 15.50 USGS 01473000 1943-06-18 17000 11.62 USGS 01473000 1943-11-09 16400 11.43 USGS 01473000 1945-01-01 17900 11.94 USGS 01473000 1946-06-02 31700 16.23 USGS 01473000 1947-05-05 5230 6.35 USGS 01473000 1948-05-13 12200 10.19 USGS 01473000 1948-12-30 17800 11.85 USGS 01473000 1950-03-23 10900 9.61 USGS 01473000 1950-11-25 26100 14.60 USGS 01473000 1952-04-28 16100 11.21 USGS 01473000 1952-11-22 22400 13.36 USGS 01473000 1953-12-14 9740 8.68 USGS 01473000 1955-08-13 24200 14.26 USGS 01473000 1955-10-15 19100 12.72 USGS 01473000 1957-04-05 10500 5 9.35 USGS 01473000 1958-02-28 14700 5 11.23 USGS 01473000 1959-03-06 7040 5 7.52 USGS 01473000 1960-09-12 25400 5 14.55 USGS 01473000 1961-02-26 8580 5 8.44 USGS 01473000 1962-03-12 12400 5 10.31 USGS 01473000 1963-03-06 10500 5 9.44 USGS 01473000 1964-01-09 10700 5 9.51 USGS 01473000 1965-02-08 14500 5 11.11 USGS 01473000 1966-02-13 11000 5 9.91 USGS 01473000 1967-03-07 16600 5 11.86 USGS 01473000 1968-05-31 16300 5 11.75 USGS 01473000 1969-07-29 14600 5 11.17 USGS 01473000 1970-04-02 17600 5 12.20 USGS 01473000 1971-09-14 25600 5 14.67 USGS 01473000 1972-06-22 35800 5 17.08 USGS 01473000 1972-11-14 17400 5 11.80 USGS 01473000 1973-12-21 21100 5 13.04 USGS 01473000 1975-07-14 19200 5 12.39 USGS 01473000 1976-01-27 12000 5 9.74 USGS 01473000 1977-03-23 18600 5 12.19 USGS 01473000 1978-01-26 21100 5 13.03 USGS 01473000 1979-01-25 26400 5 14.79 USGS 01473000 1980-03-21 14100 5 10.55 USGS 01473000 1981-05-11 6440 5 7.05 USGS 01473000 1982-01-04 15100 5 11.10 USGS 01473000 1983-04-10 16700 5 11.70 USGS 01473000 1984-07-07 27400 5 15.06 USGS 01473000 1985-09-27 21200 5 13.19 USGS 01473000 1985-11-17 9490 5 8.75 USGS 01473000 1986-12-25 10600 5 9.28 USGS 01473000 1987-11-30 8400 5 8.17 USGS 01473000 1989-09-20 15000 5 11.08 USGS 01473000 1990-05-30 20600 5 13.00 USGS 01473000 1990-12-04 5900 5 6.65 USGS 01473000 1992-06-05 4710 5 5.78 USGS 01473000 1992-11-23 14000 5 10.70 USGS 01473000 1993-12-05 26000 5 14.65 USGS 01473000 1995-03-09 21500 5 13.29 USGS 01473000 1996-01-19 32500 5 16.45 USGS 01473000 1996-10-19 29600 5 15.67 USGS 01473000 1998-04-10 8710 5 8.32 USGS 01473000 1999-09-16 33700 5 16.59 USGS 01473000 2000-03-22 17300 5 11.89 USGS 01473000 2000-12-17 22800 5 13.71 USGS 01473000 2002-05-14 19100 5 12.52 USGS 01473000 2003-06-21 23100 5 13.78 USGS 01473000 2004-09-18 26500 5 14.80 USGS 01473000 2005-04-03 24400 5 14.17 USGS 01473000 2005-10-08 26800 5 14.90 USGS 01473000 2007-04-15 18900 5 12.43 USGS 01473000 2008-02-13 17800 5 12.08 USGS 01473000 2008-12-12 21400 5 12.91 USGS 01473000 2010-03-13 15000 5 10.64 USGS 01473000 2011-08-28 39600 5 18.20 USGS 01473000 2011-11-23 18300 5 12.61 USGS 01473000 2013-01-31 18100 5 12.51 USGS 01473000 2014-05-01 00:45 30200 5 16.20 USGS 01473000 2015-03-14 16:15 8940 5 8.06 USGS 01473000 2016-02-25 05:07 17000 5 12.09 USGS 01473000 2017-03-31 11100 5 9.23 USGS 01473000 2018-08-22 07:07 17000 5 12.06 USGS 01473000 2019-07-11 23:15 29500 5 16.03 USGS 01473000 2020-08-04 20:00 45600 5 19.32 USGS 01473000 2021-09-02 03:00 64400 2,5 USGS 01473000 2022-04-08 01:45 14500 5 10.94 USGS 01473000 2023-01-26 04:15 9980 5 8.63