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Streamflow Measurements for the Nation


USGS 10260855 GRASS VALLEY LK TUNNEL OUTLET A LAKE ARROWHEAD CA


San Bernardino County, California
Hydrologic Unit Code 18090208
Latitude  34°15'36", Longitude 117°12'16" NAD83
Gage datum 5,150 feet above NGVD29
Output formats
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HTML table without channel data
Tab-separated data with channel data
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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
 
1432024-04-23 10:56PDTYesRTAITUSGS0.101.030.000.10PoorDebrisModerateNONE
1422024-02-16 10:30PSTYesRTAI/KAMUSGS0.061.020.000.20PoorDebrisModerateNONE
1412023-12-06 11:16PSTYesRTAITUSGS0.041.140.000.30PoorDebrisModerateNONE
1402023-10-13 10:21:30PDTYesRTAIT/KAMUSGS0.040.990.000.20PoorVegetationModerateNONE
1392023-08-24 09:48PDTYesRTAITUSGS0.110.960.000.20PoorDebrisHeavyNONE
1382023-06-16 11:14PDTYesRTAITUSGS0.380.940.000.40PoorDebrisModerateNONE
1372023-04-20 09:55PDTYesRTAITUSGS0.620.990.000.20PoorDebrisModerateNONE
1362023-02-21 10:23:30PSTYesRTAITUSGS0.560.950.010.40PoorDebrisLightNONE
1352022-12-01 10:25PSTYesRTAITUSGS0.130.910.000.30PoorDebrisModerateNONE
1342022-10-12 11:42PDTYesRTAIT/JNEWBYUSGS0.021.060.000.10PoorDebrisModerateNONE
1332022-10-11 10:24:30PDTYesRTAIT/JNEWBYUSGS0.031.310.000.10PoorDebrisLightNONE
1322022-08-15 10:03:30PDTYesRTAITUSGS0.020.990.000.40PoorDebrisHeavyNONE
1312022-06-06 10:21PDTYesRTAITUSGS0.061.040.000.30PoorDebrisHeavyNONE
1302022-04-07 10:00:35PDTYesRTAITUSGS0.531.110.010.40PoorDebrisModerateNONE
1292022-02-01 10:54:30PSTYesRTAIT/ADELAOUSGS0.931.190.000.50PoorDebrisHeavyNONE
1282021-12-20 11:30PSTYesRTAITUSGS0.401.080.000.30PoorDebrisModerateNONE
1272021-10-05 10:26:30PDTYesRTAITUSGS0.020.770.000.30PoorDebrisHeavyNONE
1262021-08-12 10:03PDTYesRTAITUSGS0.020.780.000.20PoorDebrisHeavyNONE
1252021-06-08 12:59:30PDTYesRTAITUSGS0.000.810.000.10ExcellentDebrisHeavyNONE
1242021-04-08 10:46:30PDTYesRTAITUSGS0.180.990.000.30PoorDebrisModerateNONE
1232021-02-11 10:46:30PSTYesrtaitUSGS0.831.070.000.50PoorDebrisHeavyNONE
1222020-12-03 11:12:30PSTYesRATUSGS0.030.870.000.30PoorDebrisHeavyNONE
1212020-10-09 10:37PDTYesRATUSGS0.060.740.000.30PoorDebrisModerateNONE
1202020-08-11 10:30PDTYesRATUSGS0.050.730.000.50PoorDebrisModerateNONE
1192020-06-01 10:13:30PDTYesRATUSGS0.190.840.000.40PoorDebrisModerateNONE
1182020-04-23 09:58PDTYesRATUSGS0.380.870.000.40PoorDebrisModerateNONE
1172020-02-07 09:46:30PSTYesRATUSGS0.420.840.000.50PoorVegetationLightNONE
1162019-12-13 09:57PSTYesRATUSGS1.030.930.000.30PoorDebrisModerateNONE
1152019-10-11 09:55:30PDTYesRATUSGS0.000.670.000.10ExcellentNoFlowNONE
1142019-08-07 11:03PDTYesRAT/RBCUSGS0.060.75 PoorVegetationHeavyNONE
1132019-06-10 10:30:30PDTYesRATUSGS0.100.740.000.30PoorVegetationHeavyNONE
1122019-04-05 10:54:30PDTYesRATUSGS0.340.780.010.50PoorDebrisModerateNONE
1112019-02-12 10:48PSTYesRATUSGS2.881.130.000.50FairClearNONE
1102018-12-07 10:22PSTYesRATUSGS3.091.210.000.50FairDebrisModerateNONE
1092018-10-02 10:53PDTYesRATUSGS0.010.710.000.50PoorDebrisHeavyNONE
1082018-08-08 10:34PDTYesRATUSGS0.000.720.000.10ExcellentDebrisModerateNONE
1072018-06-07 10:20PDTYesRATUSGS0.020.770.000.30PoorDebrisModerateNONE
1062018-04-06 10:41:30PDTYesjen/ratUSGS0.350.870.020.40FairScourControlChangedNONE
1052018-03-15 09:40:30PDTYesRATUSGS24.42.090.060.30PoorClearNONE
1042018-02-02 11:19PSTYesRATUSGS0.040.790.000.25PoorClearNONE
1032018-01-09 12:44:30PSTYescjm/mjlUSGS1.921.16-0.020.33FairClearNONE
1022018-01-09 12:22PSTYescjm/mjlUSGS1.891.19-0.040.25PoorClearNONE
1012017-12-05 09:56:30PSTYesRATUSGS0.000.740.000.01ExcellentClearNONE
1002017-10-13 10:31PDTYesRAT/RPUSGS0.030.760.010.40PoorDebrisModerateNONE
992017-08-11 11:27:30PDTYesRATUSGS0.000.740.000.10ExcellentClearNONE
982017-06-15 10:40:26PDTYesRAT/JENUSGS0.360.850.000.50FairDebrisModerateNONE
972017-04-06 10:08:30PDTYesRBC/RATUSGS0.930.930.010.50FairVegetationLightNONE
962017-02-07 14:27PSTYesrat/jenUSGS15.51.88 FairClearNONE
952017-01-11 14:08:30PSTYesrat/mesUSGS17.81.900.060.60PoorClearNONE
942017-01-05 11:12PSTYesratUSGS6.201.37 PoorUnspecifedNONE
932016-12-08 13:06PSTYesjenUSGS0.020.720.000.40PoorDebrisModerateNONE
922016-10-03 11:10:30PDTYesratUSGS0.000.700.010.10GoodDebrisLightNONE
912016-08-18 10:08:30PDTYesRat/mesUSGS0.010.750.010.40PoorVegetationModerateNONE
902016-07-06 10:41:30PDTYesRat/mkmUSGS0.020.760.000.30PoorVegetationModerateNONE
892016-06-07 12:20:30PDTYesMKM/RABUSGS0.010.760.000.30Poor NONE
882016-04-07 11:03PDTYesRatUSGS0.060.740.000.40PoorClearNONE
872016-02-22 09:41:30PSTYesRATUSGS0.580.910.000.50PoorClearNONE
862016-02-01 13:17:29PSTYescjm/jenUSGS4.411.28-0.010.30PoorClearNONE
852016-01-15 10:08:30PSTYesRATUSGS0.260.860.000.50FairClearNONE
842015-12-04 13:36:30PSTYesratUSGS0.000.900.000.30PoorDebrisHeavyNONE
832015-10-05 11:46PDTYesRATUSGS0.740.970.000.50FairScourControlChangedNONE
822015-09-09 12:03PDTYesRAT/RABUSGS0.030.95 0.10PoorUnspecifedNONE
812015-07-21 09:52:30PDTYesRAT/RBCUSGS0.330.890.000.30PoorDebrisModerateNONE
802015-06-01 12:48:31PDTYesRATUSGS0.020.730.000.50PoorDebrisModerateNONE
792015-03-31 10:50:30PDTYesRAT/rbcUSGS0.000.630.000.10UnspecifiedDebrisModerateNONE
782015-02-03 11:58:55PSTYesRATUSGS0.230.830.010.70FairClearNONE
772014-12-03 12:03PSTYesjen/ratUSGS7.641.44-0.050.40FairDebrisLightNONE
762014-12-02 14:37:30PSTYesRAT/MESUSGS0.221.350.170.20PoorUnspecifedNONE
752014-11-04 12:00PSTYesRATUSGS0.010.850.000.20PoorClearNONE
742014-10-08 12:15:30PDTYesRATUSGS0.000.670.000.10PoorClearNONE
732014-09-26 12:05PDTYesmesUSGS0.010.66 PoorClearNONE
722014-07-18 10:12PDTYesRATUSGS0.000.65 PoorClearNONE
712014-06-04 14:21:30PDTYesRATUSGS0.000.71 PoorClearNONE
702014-04-14 10:41:22PDTYesJWNUSGS0.000.66 PoorClearNONE
692014-02-28 11:27PSTYesRAT/CASUSGS37.52.620.070.70UnspecifiedClearNONE
682014-02-25 12:51:30PSTYesRATUSGS0.010.760.000.30PoorDebrisModerateNONE
672014-02-25 12:15PSTYesRATUSGS0.010.760.000.30PoorDebrisModerateNONE
662014-01-08 14:23PSTYesRATUSGS0.110.820.00 PoorClearNONE
652013-11-26 14:22:49PSTYesRATUSGS0.260.83 PoorFillControlChangedNONE
642013-11-26 13:12PSTYesRATUSGS0.280.84 PoorFillControlChangedNONE
632013-10-17 12:41:54PDTYesRAT/jenUSGS0.000.58 UnspecifiedDebrisLightNONE
622013-09-11 10:50:30PDTYesRATUSGS0.000.560.00 UnspecifiedClearNONE
612013-07-26 09:48PDTYestekUSGS0.000.58 Unspecified NONE
602013-07-19 11:17:36PDTYesRATUSGS0.000.66 UnspecifiedClearNONE
592013-06-03 12:20PDTYesRATUSGS0.010.620.000.20FairClearNONE
582013-04-12 14:44PDTYescasUSGS0.120.550.000.20Good NONE
572013-02-04 12:00:30PSTYesRAT/alpUSGS0.840.800.000.50FairClearNONE
562012-12-20 11:08:30PSTYescasUSGS1.310.880.000.40FairClearNONE
552012-11-14 09:35PSTYescasUSGS0.000.54 UnspecifiedClearNONE
542012-09-18 13:16PDTYescasUSGS0.000.54 Unspecified NONE
532012-08-02 09:31PDTYestekUSGS0.000.53 Unspecified NONE
522012-07-02 11:45PDTYescasUSGS0.130.550.000.10GoodClearNONE
512012-06-01 09:57PDTYescas/vjgUSGS0.250.640.000.60PoorClearNONE
502012-04-03 12:49PDTYescas/tekUSGS1.440.86 PoorClearNONE
492012-03-05 10:37PSTYescasUSGS0.670.780.000.40FairClearNONE
482012-02-01 09:42PSTYescasUSGS0.480.760.000.30FairClearNONE
462011-10-14 14:43PDTYesTEKUSGS0.000.48 UnspecifiedUnspecifedNONE
452011-09-20 16:10PDTYesTEKUSGS0.100.620.000.30PoorUnspecifedNONE
442011-07-27 12:40PDTYesTEKUSGS0.290.630.000.30PoorVegetationHeavyNONE
432011-06-13 15:21PDTYesTEKUSGS0.490.720.000.30PoorUnspecifedNONE
422011-05-23 12:20PDTYesTEKUSGS0.610.750.000.30PoorVegetationHeavyNONE
412011-04-19 12:30PDTYesTEKUSGS0.710.790.000.30PoorVegetationHeavyNONE
402011-03-14 12:57PDTYesTEKUSGS0.370.690.000.40PoorVegetationModerateNONE
392011-02-09 11:06PSTYesTEKUSGS0.320.640.010.40Poor NONE
382011-01-06 11:36PSTYesTEKUSGS1.140.820.010.60PoorVegetationLightNONE
372010-12-01 14:42PSTYesTEKUSGS0.120.610.010.10PoorDebrisLightNONE
362010-11-03 09:50PDTYesTEKUSGS0.000.65 UnspecifiedVegetationLightNONE
352010-10-01 10:03PDTYesTEKUSGS0.000.60 UnspecifiedDebrisModerateNONE
342010-09-02 10:28PDTYesTEKUSGS0.000.72 UnspecifiedDebrisModerateNONE
332010-08-03 13:35PDTYesTEKUSGS0.000.69 UnspecifiedDebrisModerateNONE
322010-07-14 11:18PDTYesTEKUSGS0.000.68 UnspecifiedDebrisModerateNONE
312010-07-02 11:03PDTYesTEKUSGS0.000.70 0.00UnspecifiedDebrisModerateNONE
302010-06-02 16:31PDTYesTEKUSGS0.720.920.010.50PoorDebrisModerateNONE
292010-05-06 12:12:30PDTYesJAUSGS0.910.910.010.40FairDebrisModerateNONE
282010-04-06 17:55PDTYesGMLUSGS0.750.900.010.30FairDebrisLightNONE
272010-03-03 16:35PSTYesGMLUSGS1.570.99-0.010.40FairDebrisLightNONE
262010-02-10 12:45PSTYesGMLUSGS3.031.180.000.50FairDebrisLightNONE
252010-01-20 13:18PSTYesGMLUSGS3.661.200.010.30FairDebrisLightNONE
242010-01-04 15:00PSTYesGML/TEKUSGS0.330.800.020.30FairDebrisModerateNONE
232009-12-01 11:25PSTYesJAUSGS0.000.53 UnspecifiedDebrisModerateNONE
222009-11-02 11:10PSTYesJAUSGS0.000.52 UnspecifiedDebrisModerateNONE
212009-10-02 11:10PDTYesJAUSGS0.000.52 UnspecifiedDebrisModerateNONE
202009-09-01 15:15PDTYesJAUSGS0.000.52 UnspecifiedDebrisModerateNONE
192009-08-03 14:00PDTYesJAUSGS0.000.59 UnspecifiedDebrisModerateNONE
182009-07-01 10:45PDTYesJAUSGS0.000.66 UnspecifiedDebrisModerateNONE
172009-06-15 13:50PDTYesLTB/JAUSGS0.000.64 UnspecifiedDebrisModerateNONE
162009-06-05 13:20PDTYesJAUSGS0.000.63 UnspecifiedDebrisModerateNONE
152009-06-01 11:50PDTYesJAUSGS0.000.62 UnspecifiedDebrisModerateNONE
142009-05-01 11:00PDTYesJAUSGS0.000.60 UnspecifiedDebrisModerateNONE
132009-04-01 12:17:36PDTYesJAUSGS0.840.840.000.40FairDebrisLightNONE
122009-03-04 12:27:36PSTYesJAUSGS4.901.260.020.40FairClearNONE
112009-02-06 11:30PSTYesJAUSGS19.11.92-0.070.50PoorClearNONE
102009-02-04 12:45:06PSTYesJAUSGS0.760.720.010.70PoorDebrisLightNONE
92009-01-07 12:32:36PSTYesJAUSGS0.490.610.020.40FairClearNONE
82008-12-29 13:25PSTYesJAUSGS0.540.630.000.50FairClearNONE
72008-12-19 12:10PSTYesJAUSGS0.020.550.000.10PoorDebrisModerateNONE
62008-12-02 13:30PSTYesJAUSGS0.000.45 UnspecifiedDebrisModerateNONE
52008-11-03 12:45PSTYesJAUSGS0.020.400.000.30PoorDebrisModerateNONE
4G2008-10-10 12:00PDTYesTEK/JAUSGS1003.530.000.10FairUnspecifedNONE
4F2008-10-10 11:50PDTYesTEK/JAUSGS70.03.110.000.10FairUnspecifedNONE
4E2008-10-10 11:40PDTYesTEK/JAUSGS50.02.750.000.10FairUnspecifedNONE
4D2008-10-10 11:30PDTYesTEK/JAUSGS30.02.290.000.10FairUnspecifedNONE
4C2008-10-10 11:20PDTYesTEK/JAUSGS20.01.970.000.10FairUnspecifedNONE
4B2008-10-10 11:10PDTYesTEK/JAUSGS10.01.540.000.10FairUnspecifedNONE
4A2008-10-10 11:00PDTYesTEK/JAUSGS5.001.200.000.10FairUnspecifedNONE
42008-10-10 10:35PDTYesTEK/JAUSGS0.000.59 UnspecifiedUnspecifedNONE
32008-10-09 15:35PDTYesTEK/JAUSGS0.000.58 UnspecifiedUnspecifedNONE
22008-09-26 09:20PDTYesJAUSGS0.000.68 UnspecifiedUnspecifedNONE
12008-09-18 14:05PDTYesGML/JAUSGS0.000.67 UnspecifiedUnspecifedNONE