# # U.S. Geological Survey, National Water Information System # Surface water measurements # # Retrieved: 2025-11-12 04:39:58 EST (caww01) # # Further descriptions of the columns and codes used can be found at: # https://help.waterdata.usgs.gov/output-formats#streamflow_measurement_data # # Data for the following 1 site(s) are contained in this file # USGS 10263675 BIG ROCK C WASH A HWY 138 NR LLANO CA # ----------------------------------------------------------------------------------- # # agency_cd site_no measurement_nu measurement_dt tz_cd q_meas_used_fg party_nm site_visit_coll_agency_cd gage_height_va discharge_va measured_rating_diff gage_va_change gage_va_time control_type_cd discharge_cd chan_nu chan_name meas_type streamflow_method velocity_method chan_discharge chan_width chan_area chan_velocity chan_stability chan_material chan_evenness long_vel_desc horz_vel_desc vert_vel_desc chan_loc_cd chan_loc_dist 5s 15s 6s 19d 12s 1s 12s 5s 12s 12s 12s 7s 6s 21s 15s 11n 64s 4s 5s 5s 14s 14s 14s 14s 4s 4s 4s 12s 9s 12s 7s 14s USGS 10263675 1 1988-12-12 12:30:00 PST Yes JA USGS 3.30 0.10 Good 0.00 0.10 Clear NONE 1 Imported Channel 1 OTHR QFLUM 0.10 UNSP UNSP UNSP unkn UNSP UNSP UNSP USGS 10263675 2 1988-12-16 09:15:00 PST Yes JA USGS 3.60 2.59 Fair 0.01 0.40 Clear NONE 1 Imported Channel 1 WADE unspe unkno 2.59 9.00 2.45 1.06 UNSP UNSP UNSP unkn UNSP UNSP UNSP USGS 10263675 3 1988-12-22 11:05:00 PST Yes JA USGS 3.67 4.32 Fair 0.00 0.40 Clear NONE 1 Imported Channel 1 WADE unspe unkno 4.32 9.70 3.59 1.20 UNSP UNSP UNSP unkn UNSP UNSP UNSP USGS 10263675 4 1988-12-27 10:10:00 PST Yes JA USGS 3.63 3.47 Fair 0.06 0.40 IceCover NONE 1 Imported Channel 1 WADE unspe unkno 3.47 10.0 4.05 0.86 UNSP UNSP UNSP unkn UNSP UNSP UNSP USGS 10263675 5 1989-02-16 12:40:00 PST Yes JA USGS 3.43 0.38 Fair 0.00 0.30 Clear NONE 1 Imported Channel 1 WADE unspe unkno 0.38 3.55 0.76 0.50 UNSP UNSP UNSP unkn UNSP UNSP UNSP USGS 10263675 6 1989-02-27 16:40:00 PST Yes JA USGS 3.51 0.86 Fair -0.01 0.50 Clear NONE 1 Imported Channel 1 WADE unspe unkno 0.86 5.20 1.36 0.63 UNSP UNSP UNSP unkn UNSP UNSP UNSP USGS 10263675 7 1991-03-01 09:17:00 PST Yes JA USGS 3.03 128 Poor 0.36 0.20 Clear NONE 1 Imported Channel 1 WADE unspe unkno 128 35.0 21.4 5.98 UNSP UNSP UNSP unkn UNSP UNSP UNSP USGS 10263675 1W 1991-03-01 10:00:00 PST Yes JA USGS 5.60 106 Poor -0.06 0.20 Clear NONE 1 Imported Channel 1 WADE unspe unkno 106 38.0 20.3 5.22 UNSP UNSP UNSP unkn UNSP UNSP UNSP USGS 10263675 8 1991-03-02 10:05:00 PST Yes JA USGS 2.22 11.9 Fair 0.00 0.50 Clear NONE 1 Imported Channel 1 WADE unspe unkno 11.9 11.2 4.44 2.68 UNSP UNSP UNSP unkn UNSP UNSP UNSP USGS 10263675 9 1991-03-05 14:07:00 PST Yes JA USGS 2.18 10.2 Poor -0.01 0.40 Clear NONE 1 Imported Channel 1 WADE unspe unkno 10.2 12.0 4.43 2.30 UNSP UNSP UNSP unkn UNSP UNSP UNSP USGS 10263675 10 1991-04-17 10:40:00 PDT Yes JA USGS 1.86 1.87 Fair 0.00 0.40 Clear NONE 1 Imported Channel 1 WADE unspe unkno 1.87 7.00 1.82 1.03 UNSP UNSP UNSP unkn UNSP UNSP UNSP USGS 10263675 11 1991-04-18 13:05:00 PDT Yes JA USGS 1.90 2.08 Fair -0.01 0.50 Clear NONE 1 Imported Channel 1 WADE unspe unkno 2.08 8.50 2.44 0.85 UNSP UNSP UNSP unkn UNSP UNSP UNSP USGS 10263675 12 1992-02-11 09:25:00 PST Yes JA USGS 4.38 298 Poor -0.13 0.40 Clear NONE 1 Imported Channel 1 WADE unspe unkno 298 87.0 56.8 5.25 UNSP UNSP UNSP unkn UNSP UNSP UNSP USGS 10263675 2W 1992-02-11 11:20:00 PST Yes JA USGS 6.03 54.8 Poor -0.03 0.20 Clear NONE 1 Imported Channel 1 WADE unspe unkno 54.8 22.5 13.6 4.03 UNSP UNSP UNSP unkn UNSP UNSP UNSP USGS 10263675 13 1992-02-12 09:30:00 PST Yes JA USGS 4.15 138 Poor 0.00 0.30 Clear NONE 1 Imported Channel 1 WADE unspe unkno 138 44.0 31.5 4.38 UNSP UNSP UNSP unkn UNSP UNSP UNSP USGS 10263675 14 1992-02-13 09:45:00 PST Yes JA USGS 4.41 134 Poor 0.06 0.30 Clear NONE 1 Imported Channel 1 WADE unspe unkno 134 52.0 31.4 4.27 UNSP UNSP UNSP unkn UNSP UNSP UNSP USGS 10263675 3W 1992-02-13 10:05:00 PST Yes JA USGS 7.89 40.5 Poor -0.05 0.20 Clear NONE 1 Imported Channel 1 WADE unspe unkno 40.5 18.0 10.2 3.97 UNSP UNSP UNSP unkn UNSP UNSP UNSP USGS 10263675 4W 1992-02-18 17:00:00 PST Yes JA USGS 3.10 Fair Clear NONE 1 Imported Channel 1 WADE unspe unkno 3.10 8.50 2.24 1.38 UNSP UNSP UNSP unkn UNSP UNSP UNSP USGS 10263675 15 1992-03-12 11:35:00 PST Yes JA USGS 10.8 Fair DebrisHeavy NONE 1 Imported Channel 1 WADE unspe unkno 10.8 17.0 4.44 2.43 UNSP UNSP UNSP unkn UNSP UNSP UNSP USGS 10263675 5W 1992-03-12 12:10:00 PST Yes JA USGS 5.56 Fair DebrisHeavy NONE 1 Imported Channel 1 WADE unspe unkno 5.56 8.00 2.64 2.11 UNSP UNSP UNSP unkn UNSP UNSP UNSP USGS 10263675 6W 1992-04-30 08:20:00 PDT Yes JCB USGS 5.42 49.9 Fair 0.00 0.30 DebrisHeavy NONE 1 Imported Channel 1 WADE unspe unkno 49.9 30.0 12.1 4.12 UNSP UNSP UNSP unkn UNSP UNSP UNSP USGS 10263675 16 1992-04-30 14:30:00 PDT Yes JCB USGS 8.95 Poor DebrisHeavy NONE 1 Imported Channel 1 WADE unspe unkno 8.95 12.0 4.05 2.21 UNSP UNSP UNSP unkn UNSP UNSP UNSP USGS 10263675 17 1992-05-12 15:30:00 PDT Yes JCB/JLO USGS 2.42 7.93 Fair DebrisHeavy NONE 1 Imported Channel 1 WADE unspe unkno 7.93 12.0 4.02 1.97 UNSP UNSP UNSP unkn UNSP UNSP UNSP USGS 10263675 7W 1992-05-12 16:20:00 PDT Yes JCB/JLO USGS 5.60 32.4 Good DebrisHeavy NONE 1 Imported Channel 1 WADE unspe unkno 32.4 27.0 14.1 2.30 UNSP UNSP UNSP unkn UNSP UNSP UNSP USGS 10263675 8W 1992-05-15 10:45:00 PDT Yes JCB/JLO USGS 5.50 33.9 Good 0.20 0.40 DebrisHeavy NONE 1 Imported Channel 1 WADE unspe unkno 33.9 26.0 14.9 2.28 UNSP UNSP UNSP unkn UNSP UNSP UNSP USGS 10263675 18 1992-05-15 11:20:00 PDT Yes JCB/JLO USGS 2.52 8.46 Fair 0.00 0.20 DebrisHeavy NONE 1 Imported Channel 1 WADE unspe unkno 8.46 9.00 4.60 1.84 UNSP UNSP UNSP unkn UNSP UNSP UNSP USGS 10263675 19 1992-06-11 09:00:00 PDT Yes JCB/JLO USGS 2.06 0.28 Fair 0.00 0.20 NONE 1 Imported Channel 1 WADE unspe unkno 0.28 5.30 0.47 0.60 UNSP UNSP UNSP unkn UNSP UNSP UNSP USGS 10263675 9W 1992-06-11 09:20:00 PDT Yes JCB/JLO USGS 4.96 1.37 Fair 0.00 0.30 NONE 1 Imported Channel 1 WADE unspe unkno 1.37 9.50 1.88 0.73 UNSP UNSP UNSP unkn UNSP UNSP UNSP USGS 10263675 10W 1992-06-17 12:35:00 PDT Yes MJD/JGH USGS 4.84 0.60 Fair NONE 1 Imported Channel 1 OTHR other 0.60 UNSP UNSP UNSP unkn UNSP UNSP UNSP USGS 10263675 20W 1993-01-21 09:15:00 PST Yes ERH USGS 82.1 Poor Clear NONE 1 Imported Channel 1 WADE unspe unkno 82.1 31.5 21.0 3.91 UNSP UNSP UNSP unkn UNSP UNSP UNSP USGS 10263675 21W 1993-03-11 13:55:00 PST Yes ERH USGS 52.4 Poor Clear NONE 1 Imported Channel 1 WADE unspe unkno 52.4 16.8 14.1 3.72 UNSP UNSP UNSP unkn UNSP UNSP UNSP USGS 10263675 22 1993-03-17 10:30:00 PST Yes ERH USGS 61.1 Poor Clear NONE 1 Imported Channel 1 WADE unspe unkno 61.1 16.7 14.6 4.18 UNSP UNSP UNSP unkn UNSP UNSP UNSP