# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-05-17 23:13:40 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 08078000 Chocolate Bayou nr Alvin, TX # # 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 08078000 1939-07-14 19.90 5 USGS 08078000 1947-08-26 1120 1 USGS 08078000 1948-02-25 1080 14.76 USGS 08078000 1949-04-23 980 12.99 USGS 08078000 1949-10-08 7400 18.80 USGS 08078000 1951-09-14 936 12.66 USGS 08078000 1952-04-01 2250 16.33 USGS 08078000 1953-08-31 2660 16.69 USGS 08078000 1953-11-19 3010 16.93 USGS 08078000 1955-02-07 1860 15.97 USGS 08078000 1956-05-02 247 3.72 USGS 08078000 1957-03-18 4280 17.10 USGS 08078000 1957-10-16 4100 13.25 USGS 08078000 1959-08-27 3370 19.03 6 USGS 08078000 1960-06-27 2920 18.46 USGS 08078000 1961-06-19 3970 20.10 USGS 08078000 1961-11-14 3050 5 18.88 USGS 08078000 1962-12-24 1810 5 14.38 USGS 08078000 1964-02-05 758 5 9.18 USGS 08078000 1964-12-11 2570 5 18.56 USGS 08078000 1966-02-10 2900 5 18.97 USGS 08078000 1967-02-06 860 5 9.75 USGS 08078000 1968-06-24 4160 5 20.34 USGS 08078000 1969-02-22 2020 5 16.82 USGS 08078000 1970-09-17 1840 5 16.55 USGS 08078000 1971-09-11 2720 5 19.41 USGS 08078000 1972-05-13 2700 5 19.07 USGS 08078000 1973-06-13 4460 5 20.82 USGS 08078000 1974-05-11 2690 5 19.05 USGS 08078000 1975-06-01 3210 5 19.66 USGS 08078000 1976-06-17 1870 5 16.71 USGS 08078000 1977-04-21 2060 5 17.51 USGS 08078000 1978-06-04 1340 5 13.76 USGS 08078000 1979-07-26 21500 5 23.88 USGS 08078000 1980-01-23 2620 5 18.90 USGS 08078000 1981-05-04 3070 5 19.63 USGS 08078000 1982-05-15 1670 5 15.70 USGS 08078000 1983-08-20 2430 5 19.80 USGS 08078000 1984-01-10 1220 5 14.04 USGS 08078000 1985-03-16 2500 5 19.69 USGS 08078000 1985-11-13 1210 5 13.61 USGS 08078000 1986-11-25 1490 5 14.69 USGS 08078000 1988-04-30 995 5 21.44 6 USGS 08078000 1989-08-03 5650 5 30.98 USGS 08078000 1990-05-05 2880 5 28.57 USGS 08078000 1991-04-06 3320 5 29.26 USGS 08078000 1992-05-29 3670 5 29.66 USGS 08078000 1993-06-21 3120 5 29.03 USGS 08078000 1993-10-21 2890 5 28.59 USGS 08078000 1994-10-20 3940 5 30.94 USGS 08078000 1995-12-18 2810 5 29.44 USGS 08078000 1997-04-12 3200 5 30.12 USGS 08078000 1998-09-12 2380 5 29.99 USGS 08078000 1998-11-15 2400 5 30.05 USGS 08078000 2000-05-20 1090 5 23.35 USGS 08078000 2001-09-02 2920 5 31.25 USGS 08078000 2002-08-16 4730 5 30.57 USGS 08078000 2002-10-25 3440 5 29.40 USGS 08078000 2004-05-15 3340 5 29.59 USGS 08078000 2004-11-21 2680 5 28.17 USGS 08078000 2006-09-25 1410 5 24.07 USGS 08078000 2006-10-17 6280 5 31.25 USGS 08078000 2008-01-19 1450 5 24.27 USGS 08078000 2009-04-20 3410 5 29.28 USGS 08078000 2010-07-03 4590 5 30.50 USGS 08078000 2010-12-30 1400 5 24.02 USGS 08078000 2012-05-13 3550 5 29.45 USGS 08078000 2013-01-10 1070 5 22.11 USGS 08078000 2013-11-01 3350 5 29.21 USGS 08078000 2015-01-23 2870 5 29.04 USGS 08078000 2015-11-01 3070 5 29.08 USGS 08078000 2017-08-29 17000 5,9 34.06 USGS 08078000 2018-02-11 01:45 1930 5 26.29 USGS 08078000 2019-05-11 13:15 3110 5 30.05 USGS 08078000 2019-10-22 07:00 1840 5 26.45 USGS 08078000 2021-09-15 04:30 2360 5 28.94 USGS 08078000 2021-10-02 03:15 998 5 22.14 USGS 08078000 2022-11-26 23:45 1800 5 26.74