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Streamflow Measurements for the Nation

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USGS 10263675 BIG ROCK C WASH A HWY 138 NR LLANO CA


Los Angeles County, California
Hydrologic Unit Code 18090206
Latitude  34°30'21", Longitude 117°50'45" NAD27
Drainage area 53.1  square miles
Output formats
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Meas.
Number
  Date       Time Time
Datum
Measurement
Used?
  Who Measuring
Agency
Stream
flow
(ft3/s)
Gage
Height
(ft)
GH
Change
(ft)
Meas.
Duration
(hr)
Meas.
Rated
  Control Flow
Adjust.
Code
 
221993-03-17 10:30PSTYesERHUSGS61.1 PoorClearNONE
21W1993-03-11 13:55PSTYesERHUSGS52.4 PoorClearNONE
20W1993-01-21 09:15PSTYesERHUSGS82.1 PoorClearNONE
10W1992-06-17 12:35PDTYesMJD/JGHUSGS0.604.84 Fair NONE
9W1992-06-11 09:20PDTYesJCB/JLOUSGS1.374.960.000.30Fair NONE
191992-06-11 09:00PDTYesJCB/JLOUSGS0.282.060.000.20Fair NONE
181992-05-15 11:20PDTYesJCB/JLOUSGS8.462.520.000.20FairDebrisHeavyNONE
8W1992-05-15 10:45PDTYesJCB/JLOUSGS33.95.500.200.40GoodDebrisHeavyNONE
7W1992-05-12 16:20PDTYesJCB/JLOUSGS32.45.60 GoodDebrisHeavyNONE
171992-05-12 15:30PDTYesJCB/JLOUSGS7.932.42 FairDebrisHeavyNONE
161992-04-30 14:30PDTYesJCBUSGS8.95 PoorDebrisHeavyNONE
6W1992-04-30 08:20PDTYesJCBUSGS49.95.420.000.30FairDebrisHeavyNONE
5W1992-03-12 12:10PSTYesJAUSGS5.56 FairDebrisHeavyNONE
151992-03-12 11:35PSTYesJAUSGS10.8 FairDebrisHeavyNONE
4W1992-02-18 17:00PSTYesJAUSGS3.10 FairClearNONE
3W1992-02-13 10:05PSTYesJAUSGS40.57.89-0.050.20PoorClearNONE
141992-02-13 09:45PSTYesJAUSGS1344.410.060.30PoorClearNONE
131992-02-12 09:30PSTYesJAUSGS1384.150.000.30PoorClearNONE
2W1992-02-11 11:20PSTYesJAUSGS54.86.03-0.030.20PoorClearNONE
121992-02-11 09:25PSTYesJAUSGS2984.38-0.130.40PoorClearNONE
111991-04-18 13:05PDTYesJAUSGS2.081.90-0.010.50FairClearNONE
101991-04-17 10:40PDTYesJAUSGS1.871.860.000.40FairClearNONE
91991-03-05 14:07PSTYesJAUSGS10.22.18-0.010.40PoorClearNONE
81991-03-02 10:05PSTYesJAUSGS11.92.220.000.50FairClearNONE
1W1991-03-01 10:00PSTYesJAUSGS1065.60-0.060.20PoorClearNONE
71991-03-01 09:17PSTYesJAUSGS1283.030.360.20PoorClearNONE
61989-02-27 16:40PSTYesJAUSGS0.863.51-0.010.50FairClearNONE
51989-02-16 12:40PSTYesJAUSGS0.383.430.000.30FairClearNONE
41988-12-27 10:10PSTYesJAUSGS3.473.630.060.40FairIceCoverNONE
31988-12-22 11:05PSTYesJAUSGS4.323.670.000.40FairClearNONE
21988-12-16 09:15PSTYesJAUSGS2.593.600.010.40FairClearNONE
11988-12-12 12:30PSTYesJAUSGS0.103.300.000.10GoodClearNONE