# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-04-16 03:22:16 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 16816000 Umatac River at Umatac, Guam # # 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 16816000 1953-10-15 2370 5.08 USGS 16816000 1955-09-27 1360 3.39 USGS 16816000 1956-08-29 2200 4.09 USGS 16816000 1956-11-16 1800 3.75 USGS 16816000 1958-09-21 2360 4.21 USGS 16816000 1959-09-02 900 2.90 USGS 16816000 1960-08-20 1490 3.53 USGS 16816000 1960-10-19 7460 7.04 USGS 16816000 1962-09-30 3470 4.94 USGS 16816000 1962-11-11 2710 4.44 USGS 16816000 1963-12-04 3920 5.22 USGS 16816000 1965-01-21 1130 3.17 USGS 16816000 1966-09-08 2540 4.33 USGS 16816000 1967-08-10 2240 4.13 USGS 16816000 1968-09-25 1950 3.92 USGS 16816000 1968-11-23 4820 5.73 USGS 16816000 1969-12-19 5330 6.00 USGS 16816000 1971-05-03 2770 4.48 USGS 16816000 1972-08-02 4300 5.44 USGS 16816000 1972-10-04 2200 4.10 USGS 16816000 1974-09-11 1670 3.69 USGS 16816000 1975-08-01 1060 3.09 USGS 16816000 1976-05-21 7150 6.90 USGS 16816000 2002-07-05 6240 10.75 USGS 16816000 2002-12-08 16:00 3520 6.81 USGS 16816000 2004-06-27 2360 5.32 USGS 16816000 2005-08-31 09:20 3450 6.71 USGS 16816000 2005-10-19 15:40 3490 6.77 USGS 16816000 2006-10-07 23:45 3660 7.03 USGS 16816000 2007-11-19 04:30 2630 5.64 USGS 16816000 2009-08-03 22:15 3210 6.39 USGS 16816000 2009-12-02 3400 6.64 USGS 16816000 2010-10-11 13:20 2670 5.70