# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-05-03 02:00:44 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 01122000 NATCHAUG RIVER AT WILLIMANTIC, CT # # 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 01122000 1931-03-30 2520 7.46 USGS 01122000 1932-03-29 2680 7.75 USGS 01122000 1932-11-11 3270 8.83 USGS 01122000 1934-03-06 4150 9.56 USGS 01122000 1935-01-10 4670 10.13 USGS 01122000 1936-03-18 14200 13.57 USGS 01122000 1936-12-20 4050 9.33 USGS 01122000 1938-09-21 32000 16.39 1690 USGS 01122000 1939-02-16 2530 7.57 USGS 01122000 1940-01-15 4900 10.30 USGS 01122000 1941-02-08 4790 10.25 USGS 01122000 1942-03-10 4470 9.90 USGS 01122000 1942-12-31 3880 9.33 USGS 01122000 1944-04-25 3150 8.56 USGS 01122000 1945-01-02 2930 8.26 USGS 01122000 1946-06-03 1610 6.01 USGS 01122000 1947-04-06 1710 6.21 USGS 01122000 1948-03-21 4100 9.46 USGS 01122000 1949-01-07 1720 6.08 USGS 01122000 1950-03-09 1780 6.25 USGS 01122000 1951-02-08 3090 8.36 USGS 01122000 1952-06-02 2950 6 8.17 USGS 01122000 1953-03-18 2880 6 8.09 USGS 01122000 1954-09-15 2150 6 6.70 USGS 01122000 1955-08-27 3250 6 8.58 USGS 01122000 1955-10-19 3230 6 8.57 USGS 01122000 1957-04-07 1440 6 5.77 USGS 01122000 1958-01-30 1990 6 6.82 USGS 01122000 1959-04-07 2300 1,6 USGS 01122000 1960-04-02 2210 6 6.98 USGS 01122000 1961-02-28 2450 6 7.43 USGS 01122000 1962-04-02 2210 6 7.00 USGS 01122000 1963-03-29 1450 6 5.83 USGS 01122000 1964-04-16 1520 6 5.93 USGS 01122000 1965-02-27 875 6 4.45 USGS 01122000 1966-02-15 1220 6 5.15 USGS 01122000 1967-05-29 1840 6 6.37 USGS 01122000 1968-03-23 2310 6 7.16 USGS 01122000 1969-04-25 2160 6 6.92 USGS 01122000 1970-02-16 2440 6 7.39 USGS 01122000 1971-03-01 1280 6 5.37 USGS 01122000 1972-03-10 2470 6 7.44 USGS 01122000 1973-02-06 2710 6 7.83 USGS 01122000 1974-03-22 2570 6 7.60 USGS 01122000 1975-03-21 2450 6 7.40 USGS 01122000 1976-02-03 2620 6 7.68 USGS 01122000 1977-03-15 2830 6 8.00 USGS 01122000 1978-01-30 2690 6 7.80 USGS 01122000 1979-01-29 3500 6 8.89 USGS 01122000 1980-03-25 2550 6 7.56 USGS 01122000 1981-02-27 2800 6 7.96 USGS 01122000 1982-06-07 2650 6 7.73 USGS 01122000 1983-04-28 2680 6 7.79 USGS 01122000 1984-04-08 2460 6 7.62 USGS 01122000 1985-09-07 1200 6 5.14 USGS 01122000 1986-01-30 2200 6 7.18 USGS 01122000 1987-04-10 2810 6 8.12 USGS 01122000 1988-03-28 1410 6 5.71 USGS 01122000 1989-08-14 2660 6 7.85 USGS 01122000 1996-01-31 2770 6 8.01 USGS 01122000 1996-12-19 2210 6 7.15 USGS 01122000 1998-03-12 2870 6 8.14 USGS 01122000 1999-02-04 2150 6 7.04 USGS 01122000 2000-04-23 2380 6 7.43 USGS 01122000 2001-03-23 2430 6 7.51 USGS 01122000 2002-05-14 1800 6 6.44 USGS 01122000 2003-05-27 1790 6 6.42 USGS 01122000 2004-04-15 2690 6 7.90 USGS 01122000 2005-04-04 2380 6 7.42 USGS 01122000 2005-10-18 2880 6 8.15 USGS 01122000 2007-04-19 2750 6 7.98 USGS 01122000 2008-03-10 2530 6 7.87 USGS 01122000 2008-12-15 2650 6 8.04 USGS 01122000 2010-04-02 2740 6 8.16 USGS 01122000 2011-03-09 2890 6 8.36 USGS 01122000 2011-12-08 2570 6 7.93 USGS 01122000 2013-06-15 2630 6 8.01 USGS 01122000 2014-04-01 2540 6 7.74 USGS 01122000 2014-12-10 1440 6 5.84 USGS 01122000 2016-02-25 1620 6 6.19 USGS 01122000 2017-04-05 15:30 1810 6 6.53 USGS 01122000 2018-09-27 14:45 2560 6 7.90 USGS 01122000 2019-04-16 14:45 1870 6 6.84 USGS 01122000 2020-04-14 16:45 2000 6 7.05 USGS 01122000 2020-12-28 15:15 2800 6 8.23 USGS 01122000 2022-02-23 16:30 1300 6 5.76 USGS 01122000 2023-07-17 18:30 2070 6 7.56