# # U.S. Geological Survey # National Water Information System # Retrieved: 2024-05-20 02:30:17 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 California 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 11221700 MILL C NR PIEDRA CA # # 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 11221700 1958-03-22 5000 7.29 USGS 11221700 1959-02-16 565 4.15 USGS 11221700 1960-02-02 167 3.46 USGS 11221700 1961-01-27 25.0 2.74 USGS 11221700 1962-02-11 2160 5.94 USGS 11221700 1963-01-31 3120 6.68 USGS 11221700 1964-04-02 271 3.84 USGS 11221700 1965-01-05 1160 5.25 USGS 11221700 1965-12-30 288 3.77 USGS 11221700 1966-12-06 11000 9.53 USGS 11221700 1968-02-18 56.0 2.83 USGS 11221700 1969-01-25 9860 9.24 USGS 11221700 1970-01-16 4000 6.17 USGS 11221700 1970-12-21 301 3.65 USGS 11221700 1971-12-26 173 3.31 USGS 11221700 1973-01-18 4050 6.19 USGS 11221700 1974-04-01 5700 6.89 USGS 11221700 1975-03-22 725 4.05 USGS 11221700 1976-03-01 100 3.01 USGS 11221700 1977-01-03 52.0 2.78 USGS 11221700 1978-02-09 5350 6.76 USGS 11221700 1979-02-21 1620 4.86 USGS 11221700 1980-01-13 6050 7.02 USGS 11221700 1981-01-29 586 3.85 USGS 11221700 1982-04-11 4900 6.58 USGS 11221700 1982-12-22 9920 8.20 USGS 11221700 1983-12-26 2140 5.16 USGS 11221700 1985-03-27 514 3.82 USGS 11221700 1986-02-13 4860 6.57 USGS 11221700 1987-02-13 827 4.17 USGS 11221700 1988-01-05 1370 4.63 USGS 11221700 1989-03-02 301 3.48 USGS 11221700 1990-03-04 50.0 2.77 USGS 11221700 1991-03-04 1710 4.87 USGS 11221700 1992-02-15 768 4.11 USGS 11221700 1993-01-14 11300 8.55 USGS 11221700 1994-02-20 301 3.51 USGS 11221700 1997-01-02 12000 7 8.70