# # U.S. Geological Survey # National Water Information System # Retrieved: 2025-01-02 19:33:12 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 01097000 ASSABET RIVER AT MAYNARD, 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 01097000 1942-03-19 960 5 5.00 USGS 01097000 1943-03-21 880 5 4.79 USGS 01097000 1944-04-26 643 5 4.34 USGS 01097000 1945-03-07 919 5 4.88 USGS 01097000 1946-03-09 1100 5 5.16 USGS 01097000 1947-03-05 656 5 4.29 USGS 01097000 1948-03-21 1460 5 5.75 USGS 01097000 1949-02-24 482 5 3.75 USGS 01097000 1950-03-25 754 5 4.43 USGS 01097000 1951-02-19 920 5 4.72 USGS 01097000 1951-11-09 1020 5 4.93 USGS 01097000 1953-03-17 1120 5 5.12 USGS 01097000 1955-08-20 4250 5 8.94 1886 USGS 01097000 1956-01-11 1380 5 5.48 USGS 01097000 1957-04-07 696 5 4.18 USGS 01097000 1958-01-28 1320 5 5.38 USGS 01097000 1959-04-04 1250 5 5.26 USGS 01097000 1960-04-01 1300 5 5.35 USGS 01097000 1961-04-18 1040 5 5.01 USGS 01097000 1962-04-02 1670 5 5.99 USGS 01097000 1963-03-28 1760 5 6.12 USGS 01097000 1964-03-07 821 5 4.48 USGS 01097000 1965-02-27 530 2,5 USGS 01097000 1966-03-06 400 2,5 USGS 01097000 1967-05-27 1010 5 4.92 USGS 01097000 1968-03-19 3620 5 8.15 USGS 01097000 1969-03-27 1690 5 6.02 USGS 01097000 1970-02-12 1780 5 6.14 USGS 01097000 1971-03-17 899 5 4.51 USGS 01097000 1972-03-23 1590 5 5.89 USGS 01097000 1973-02-04 1160 5 5.20 USGS 01097000 1974-03-23 830 5 4.65 USGS 01097000 1975-02-26 1030 5 5.02 USGS 01097000 1976-01-28 1030 5 5.01 USGS 01097000 1977-03-15 1250 5 5.37 USGS 01097000 1978-03-29 1420 5 5.63 USGS 01097000 1979-01-26 3420 5 8.11 USGS 01097000 1980-03-23 1020 5 4.85 USGS 01097000 1981-02-27 857 5 4.51 USGS 01097000 1982-06-07 2300 5 6.68 USGS 01097000 1983-03-13 1260 5 5.48 USGS 01097000 1984-06-03 1780 5 6.25 USGS 01097000 1985-02-13 403 5 3.39 USGS 01097000 1986-03-16 1360 5 5.46 USGS 01097000 1987-04-07 2580 5 7.17 USGS 01097000 1988-03-28 692 5 4.09 USGS 01097000 1989-05-13 739 5 4.25 USGS 01097000 1990-04-05 775 5 4.33 USGS 01097000 1991-04-23 779 5 4.26 USGS 01097000 1991-11-24 614 5 3.95 USGS 01097000 1993-04-02 1960 5 6.37 USGS 01097000 1994-03-24 1380 5 5.19 USGS 01097000 1994-12-26 784 5 4.08 USGS 01097000 1996-01-29 1610 5 5.55 USGS 01097000 1996-10-21 1590 5 5.52 USGS 01097000 1998-03-11 1550 5 5.61 USGS 01097000 1999-02-04 789 5 4.36 USGS 01097000 2000-04-24 1550 5 5.62 USGS 01097000 2001-03-23 2090 5 6.41 USGS 01097000 2002-05-15 602 5 3.94 USGS 01097000 2003-03-23 1040 5 4.84 USGS 01097000 2004-04-02 1770 5 5.95 USGS 01097000 2005-04-03 1650 5 5.71 USGS 01097000 2005-10-16 1530 5 5.52 USGS 01097000 2007-04-17 2040 5 6.28 USGS 01097000 2008-03-09 1520 5 5.77 USGS 01097000 2008-12-13 1410 5 5.59 USGS 01097000 2010-03-31 2530 5 7.11 USGS 01097000 2011-03-08 1390 5 5.56 USGS 01097000 2011-12-09 997 5 4.85 USGS 01097000 2013-06-15 1210 5 5.17 USGS 01097000 2014-04-01 1530 5 5.71 USGS 01097000 2015-04-05 925 5 4.58 USGS 01097000 2016-04-09 610 5 3.91 USGS 01097000 2017-04-07 1240 5 5.20 USGS 01097000 2018-04-18 11:00 1050 5 4.84 USGS 01097000 2018-11-28 16:00 1200 5 5.13 USGS 01097000 2020-04-05 10:08 804 5 4.33 USGS 01097000 2021-09-03 16:52 1300 5 5.32 USGS 01097000 2022-02-19 14:15 853 5 4.45 USGS 01097000 2023-03-15 20:00 1130 5 5.00