# # U.S. Geological Survey # National Water Information System # Retrieved: 2025-12-14 22:18:30 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 12470500 ROCKY FORD CREEK NEAR EPHRATA, WA # # 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 12470500 1942-10-02 71.0 6 1.95 USGS 12470500 1944-05-14 57.0 6 1.68 USGS 12470500 1945-07-04 73.0 6 1.95 USGS 12470500 1946-09-22 94.0 6 2.15 USGS 12470500 1946-10-01 86.0 6 2.07 USGS 12470500 1948-08-20 109 6 2.49 USGS 12470500 1949-04-23 143 6 2.84 USGS 12470500 1950-04-27 135 6 2.76 USGS 12470500 1951-06-28 108 6 2.48 USGS 12470500 1952-08-31 106 6 2.66 USGS 12470500 1952-10-13 109 6 2.67 USGS 12470500 1954-08-20 100 6 2.64 USGS 12470500 1955-07-24 109 6 2.44 USGS 12470500 1956-04-15 212 6 3.58 USGS 12470500 1956-10-05 142 6 2.86 USGS 12470500 1958-04-02 108 6 2.55 USGS 12470500 1959-04-18 148 6 2.82 USGS 12470500 1960-08-15 106 6 1959-10-01 2.51 USGS 12470500 1961-04-29 124 6 2.73 USGS 12470500 1962-05-15 114 6 2.50 USGS 12470500 1962-10-08 95.0 6 1962-10-02 2.36 USGS 12470500 1963-10-01 84.0 6 2.27 USGS 12470500 1965-08-07 84.0 6 2.25 USGS 12470500 1966-07-08 90.0 6 2.47 USGS 12470500 1967-05-27 90.0 6 2.45 USGS 12470500 1968-09-12 90.0 6 1967-10-04 2.41 USGS 12470500 1969-07-16 119 6 2.67 2 1969-09-17 2.67 USGS 12470500 1970-09-23 107 6 2.64 USGS 12470500 1971-08-15 97.0 1,6 USGS 12470500 1971-10-04 98.0 6 2.55 USGS 12470500 1973-09-18 90.0 6 1973-07-30 2.45 USGS 12470500 1974-09-01 109 6 2.70 USGS 12470500 1975-08-25 125 6 2.82 USGS 12470500 1975-10-30 110 6 2.67 USGS 12470500 1976-10-04 97.0 6 2.53 USGS 12470500 1978-07-08 75.0 6 5.42 USGS 12470500 1978-11-19 85.0 1,6 USGS 12470500 1980-09-08 82.0 6 5.48 USGS 12470500 1981-06-09 63.0 1,6 USGS 12470500 1982-09-29 67.0 1,6 USGS 12470500 1983-08-23 92.0 1,6 1983-08-08 5.63 USGS 12470500 1984-08-10 110 1,6 1984-08-09 6.22 USGS 12470500 1984-10-10 99.0 1,6 1984-10-01 5.63 USGS 12470500 1986-09-23 91.0 1,6 1986-07-20 5.72 USGS 12470500 1986-10-10 90.0 1,6 1987-09-22 5.60 USGS 12470500 1987-10-06 79.0 1,6 5.77 USGS 12470500 1989-08-30 94.0 6 1989-08-06 6.32 USGS 12470500 1989-10-01 86.0 6 6.05 2 1990-09-04 6.27 USGS 12470500 1991-09-06 63.0 6 5.73 2 1990-10-01 6.15