# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-12-04 14:34:46 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 01094400 NORTH NASHUA RIVER AT FITCHBURG, MA # # 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 01094400 1973-03-17 1170 5 4.96 USGS 01094400 1973-12-21 2080 5 6.22 USGS 01094400 1975-04-03 1670 5 5.69 USGS 01094400 1976-01-28 1450 5 5.37 USGS 01094400 1977-03-14 2080 5 6.23 USGS 01094400 1978-01-09 1640 5 5.64 USGS 01094400 1979-03-06 2060 5 6.20 USGS 01094400 1980-03-22 1750 5 5.79 USGS 01094400 1981-02-24 1080 5 4.81 USGS 01094400 1982-06-06 2100 2,5 USGS 01094400 1983-03-19 1900 5 6.00 2 1983-02-12 6.57 1 USGS 01094400 1984-04-05 2740 5 7.02 USGS 01094400 1985-03-12 743 5 4.33 USGS 01094400 1986-01-27 1990 5 5.92 USGS 01094400 1987-04-05 3510 5 7.78 2 1987-04-05 1300 9.25 1 USGS 01094400 1988-04-28 1250 5 6.22 USGS 01094400 1988-11-02 1300 2,5 USGS 01094400 1989-10-20 1550 5 6.91 USGS 01094400 1991-08-19 2320 5 7.07 USGS 01094400 1991-11-23 1130 5 5.71 USGS 01094400 1993-03-30 1650 5 6.73 USGS 01094400 1993-12-21 810 5 5.50 USGS 01094400 1994-12-24 1860 5 6.59 USGS 01094400 1996-04-16 2840 5 7.59 USGS 01094400 1996-10-21 2160 5 6.91 USGS 01094400 1998-03-09 2570 5 7.32 USGS 01094400 1999-03-22 1220 5 5.83 USGS 01094400 2000-04-22 1840 5 6.57 USGS 01094400 2001-06-17 1880 5 6.61 USGS 01094400 2002-05-14 960 5 5.48 USGS 01094400 2003-03-22 892 5 5.38 USGS 01094400 2004-04-02 2840 5 7.59 USGS 01094400 2005-04-03 2770 5 7.53 USGS 01094400 2005-10-15 2300 5 7.05 USGS 01094400 2007-04-16 3930 5 8.59 USGS 01094400 2008-09-07 1980 5 6.72 USGS 01094400 2009-07-02 1440 5 6.07 USGS 01094400 2010-03-15 3260 5 7.99 USGS 01094400 2011-03-07 3290 5 8.02 USGS 01094400 2011-12-08 1280 5 5.85 USGS 01094400 2012-10-30 1150 5 5.65 USGS 01094400 2014-03-31 1710 5 6.42 USGS 01094400 2014-10-23 1410 5 6.03 USGS 01094400 2016-02-25 1470 5 6.12 USGS 01094400 2017-04-06 1200 5 5.73 USGS 01094400 2017-10-30 05:00 3160 5 7.90 USGS 01094400 2019-01-24 19:15 2120 5 6.87 USGS 01094400 2019-12-14 11:00 1430 5 6.06 USGS 01094400 2020-12-25 18:15 1630 5 6.39 USGS 01094400 2022-02-04 13:00 950 5 6.69 USGS 01094400 2022-12-23 17:15 1750 5 6.54