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Streamflow Measurements for the Nation


USGS 11183600 WALNUT C A CONCORD CA


Contra Costa County, California
Hydrologic Unit Code 18050001
Latitude  37°56'43", Longitude 122°02'55" NAD27
Drainage area 85.2  square miles
Gage datum 35.44 feet above NGVD29
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
 
2431992-10-01 13:10PDTYesKLS/KSWUSGS1.782.730.000.50FairDebrisLightNONE
2421992-09-17 14:15PDTYesKLSUSGS4.622.740.000.70FairClearNONE
2411992-06-05 11:15PDTYesKLSUSGS4.692.860.001.00GoodDebrisHeavyNONE
2401992-04-27 15:00PDTYesJJG/KLSUSGS6.852.970.001.00FairVegetationLightNONE
2391992-03-27 12:25PSTYesJJGUSGS14.53.080.000.80GoodVegetationLightNONE
2381992-01-24 12:20PSTYesJJGUSGS6.642.930.000.70GoodVegetationLightNONE
2371991-12-13 12:05PSTYesJJGUSGS4.042.840.000.80GoodVegetationLightNONE
2361991-10-11 10:40PDTYesJJGUSGS10.82.99-0.020.60FairVegetationLightNONE
2351991-07-31 13:45PDTYesJJGUSGS3.062.800.000.90FairVegetationLightNONE
2341991-06-14 09:10PDTYesJJGUSGS4.292.840.000.90GoodVegetationLightNONE
2331991-03-28 14:00PSTYesJJGUSGS40.03.32-0.010.90GoodDebrisLightNONE
2321991-01-24 14:40PSTYesJJGUSGS5.182.870.000.80GoodDebrisModerateNONE
2311990-12-13 14:00PSTYesJJGUSGS6.942.920.000.80GoodVegetationLightNONE
2301990-10-26 09:20PDTYesJJGUSGS3.292.81-0.010.70GoodDebrisLightNONE
2291990-09-20 11:30PDTYesJJGUSGS3.822.85-0.030.70FairDebrisLightNONE
2281990-07-26 11:35PDTYesJJG/LAFUSGS3.722.820.000.70FairVegetationLightNONE
2271990-05-29 14:50PDTYesJJGUSGS17.73.12-0.030.70GoodVegetationLightNONE
2261990-04-19 12:05PDTYesJJGUSGS9.172.960.011.00GoodVegetationLightNONE
2251990-03-15 09:25PSTYesJJGUSGS11.43.000.000.70GoodVegetationLightNONE
2241990-02-14 14:00PSTYesJJGUSGS9.862.980.000.70GoodVegetationLightNONE
2231990-01-10 15:15PSTYesJJGUSGS9.012.960.000.60GoodVegetationLightNONE
2221989-12-08 08:45PSTYesJJGUSGS7.452.920.001.00GoodVegetationLightNONE
2211989-10-25 11:05PDTYesJJGUSGS16.23.07-0.020.70GoodClearNONE
2201989-09-15 11:40PDTYesJJGUSGS2.982.830.000.70FairClearNONE
2191989-07-28 09:40PDTYesJJGUSGS4.052.840.010.80Good NONE
2181989-06-16 08:30PDTYesJJGUSGS4.962.870.001.20Good NONE
2171989-04-21 12:15PDTYesJJGUSGS24.73.190.030.80Good NONE
2161989-03-17 10:15PSTYesJJGUSGS27.83.220.010.70GoodClearNONE
2151989-01-26 13:30PSTYesJJGUSGS8.752.96 GoodDebrisLightNONE
2141988-11-09 14:30PSTYesJJGUSGS3.412.820.000.70GoodClearNONE
2131988-10-14 12:45PDTYesJJGUSGS50.53.40-0.031.00GoodClearNONE
2111988-08-12 11:45PDTYesJJGUSGS3.052.810.000.70GoodDebrisLightNONE
2101988-08-05 11:00PDTYesWJHUSGS3.272.830.000.60FairDebrisModerateNONE
2081988-07-07 13:30PDTYesWJF/DWFUSGS3.132.82-0.010.60FairDebrisHeavyNONE
2071988-06-30 10:15PDTYesJJGUSGS4.092.840.000.80FairDebrisModerateNONE
2121988-06-23 13:45PDTYesJJGUSGS2.632.790.000.80FairDebrisModerateNONE
2061988-06-08 11:45PDTYesWJH/DWFUSGS11.63.020.000.60GoodDebrisModerateNONE
2051988-05-19 15:00PDTYesJJGUSGS7.822.960.000.70GoodDebrisModerateNONE
2091988-05-19 10:00PDTYesWJHUSGS3.552.84-0.010.50UnspecifiedDebrisModerateNONE
2041988-05-09 13:08PDTYesDWF/WJHUSGS9.442.980.000.60FairDebrisModerateNONE
2031988-04-21 12:30PDTYesPDD/DWFUSGS25.43.20-0.010.50FairClearNONE
2021988-03-31 13:30PSTYesJJGUSGS9.532.98-0.011.00PoorDebrisModerateNONE
2011988-02-26 10:30PSTYesJJGUSGS13.93.040.000.70GoodClearNONE
2001988-01-15 09:00PSTYesJJGUSGS1053.61-0.090.70GoodClearNONE
1991987-12-04 11:15PSTYesJJGUSGS13.53.150.120.70FairDebrisLightNONE
1981987-10-09 11:15PDTYesJJGUSGS6.042.900.000.70FairDebrisLightNONE
1911986-11-25 -- ----YesLFUSGS9.242.97 GoodVegetationLightNONE
1901986-09-11 -- ----YesLFUSGS12.73.03 GoodVegetationLightNONE
1891986-08-08 -- ----YesLFUSGS16.23.09 GoodVegetationLightNONE
1881986-06-19 -- ----YesLFUSGS18.53.14 PoorVegetationLightNONE
1871986-05-05 -- ----YesLFUSGS39.43.36-0.010.60GoodVegetationLightNONE
1861986-04-09 -- ----YesFREUSGS50.63.72 GoodVegetationLightNONE
1851986-02-13 -- ----YesKLMUSGS1353.70-0.020.70FairClearNONE
1841986-01-16 -- ----YesFREUSGS44.63.35-0.020.60GoodVegetationLightNONE
1831985-12-18 -- ----YesJJGUSGS11.43.02 GoodVegetationLightNONE
1821985-10-31 -- ----YesFREUSGS9.082.98 GoodVegetationLightNONE
1811985-09-26 -- ----YesL?F/JJGUSGS9.823.00 Good NONE
1701984-11-19 -- ----YesKLMUSGS19.23.14 Fair NONE
1691984-09-21 -- ----YesFREUSGS19.23.13 Good NONE
1681984-08-02 -- ----YesFREUSGS12.53.01 GoodVegetationLightNONE
1671984-06-28 -- ----YesFREUSGS13.53.04 Good NONE
1661984-05-24 -- ----YesFREUSGS18.73.10 Good NONE
1651984-04-24 -- ----YesJCMUSGS25.93.18-0.010.60GoodVegetationLightNONE
1641984-03-23 -- ----YesJCMUSGS30.03.260.010.80GoodVegetationLightNONE
1631984-02-24 -- ----YesFREUSGS33.63.320.010.50GoodClearNONE
1621984-01-25 -- ----YesJJG/FREUSGS36.93.28 Unspecified NONE
1611984-01-20 -- ----YesFREUSGS41.03.49 Good NONE
1601984-01-16 -- ----YesFREUSGS74.03.58 Good NONE
1591983-12-13 -- ----YesFREUSGS95.33.57-0.020.50Good NONE
1581983-10-26 -- ----YesMDWUSGS13.93.04 GoodClearNONE
1571983-08-02 -- ----YesJJGUSGS17.23.10 UnspecifiedVegetationLightNONE
1561983-07-07 -- ----YesMDWUSGS19.53.14 UnspecifiedVegetationLightNONE
1551983-06-24 -- ----YesKLMUSGS24.93.56 Unspecified NONE
1541983-02-08 -- ----YesHAR/ADOUSGS6034.92-0.020.50Good NONE
1531983-01-05 -- ----YesHAR/BREUSGS31.83.42 Poor NONE
1521982-11-22 -- ----YesJCMUSGS58.93.50 Good NONE
1511982-10-20 -- ----YesJCMUSGS12.43.03 Good NONE
1501982-06-16 -- ----YesJCMUSGS19.53.13 Unspecified NONE
1491982-05-11 -- ----YesJCMUSGS43.53.32 Good NONE
1481982-04-05 -- ----YesMDWUSGS2264.20 Good NONE
1471982-02-17 -- ----YesMDWUSGS2414.00-0.010.70Good NONE
1461982-01-07 -- ----YesMDWUSGS1623.81 Fair NONE
1451982-01-05 -- ----YesMDW/PEAUSGS1330019.10 Unspecified NONE
1441981-12-15 -- ----YesMDWUSGS11.03.01 Good NONE
1431981-11-18 -- ----YesJJGUSGS23.43.14-0.010.40Good NONE
1421981-10-19 -- ----YesJJGUSGS35.23.290.090.50Good NONE
1411981-09-16 -- ----YesJJGUSGS6.652.90 Good NONE
1401981-06-23 -- ----YesMDWUSGS6.003.12 Fair NONE
1391981-05-13 -- ----YesKOOUSGS9.832.95-0.010.30Good NONE
1381981-03-30 -- ----YesMDW/JJGUSGS20.73.15 Good NONE
1371981-02-26 -- ----YesKOOUSGS13.63.03 Good NONE
1361981-01-22 -- ----YesMDWUSGS8.603.05-0.010.50Good NONE
1351980-12-16 -- ----YesKOOUSGS7.362.91 Fair NONE
1231980-11-19 -- ----YesMDWUSGS7.272.94 Good NONE
1341980-11-17 -- ----YesSIMUSGS6.822.90 Poor NONE
1331980-10-21 -- ----YesLEEUSGS6.712.91-0.010.60Unspecified NONE
1321980-10-20 -- ----YesLEEUSGS19.83.25-0.080.60Good NONE
1311980-09-25 -- ----YesKOOUSGS6.632.90 Good NONE
1301980-08-11 -- ----YesKOOUSGS9.432.93 Fair NONE
1291980-07-11 -- ----YesKOOUSGS10.73.01-0.010.60Good NONE
1281980-05-29 -- ----YesKOO/MDWUSGS15.33.06-0.030.80Good NONE
1271980-04-21 -- ----YesKOOUSGS67.03.430.050.40Good NONE
1261980-03-20 -- ----YesLEEUSGS51.53.45 Unspecified NONE
1251980-02-06 -- ----YesLEE/MDWUSGS24.33.15 Fair NONE
1241980-01-03 -- ----YesKOO/GLAUSGS19.03.08-0.010.50Good NONE
1221979-10-09 -- ----YesMDWUSGS4.372.83 Fair NONE
1211979-09-18 -- ----YesMDWUSGS4.222.83 Fair NONE
1201979-07-30 -- ----YesMDWUSGS9.372.93 Fair NONE
1191979-07-02 -- ----YesMDWUSGS7.052.90 Fair NONE
1181979-05-29 -- ----YesMDWUSGS9.032.97 Good NONE
1171979-04-23 -- ----YesMDWUSGS53.63.41 Good NONE
1161979-03-30 -- ----YesMDWUSGS34.93.28 Good NONE
1151979-02-26 -- ----YesMDWUSGS56.03.48 Good NONE
1141979-01-16 -- ----YesBOGUSGS81.83.57-0.010.60Good NONE
1131978-12-05 -- ----YesBOGUSGS4.582.87-0.010.80Good NONE
1121978-11-02 -- ----YesDAI/MDWUSGS4.122.88 Poor NONE
1111978-10-04 -- ----YesDAIUSGS5.102.85 Good NONE
1101978-08-02 -- ----YesSIM/GLAUSGS7.662.91 Fair NONE
1091978-06-14 -- ----YesDAI/BOGUSGS8.422.96 Fair NONE
1081978-05-08 -- ----YesDAIUSGS20.13.10 Good NONE
1071978-04-04 -- ----YesBOGUSGS90.43.52-0.010.40Good NONE
1061978-03-06 -- ----YesBALUSGS1623.79 Good NONE
1051978-02-07 -- ----YesBALUSGS29807.401.751.30Fair NONE
1041978-01-04 -- ----YesBALUSGS95.13.71-0.171.00Fair NONE
1031977-12-07 -- ----YesBALUSGS2.192.93 GoodVegetationLightNONE
1021977-11-09 -- ----YesDAIUSGS11.03.00 Good NONE
1011977-10-17 -- ----YesBAL/DAIUSGS0.952.68 FairVegetationLightNONE
1001977-09-07 -- ----YesDAIUSGS1.202.69 GoodVegetationLightNONE
991977-07-26 -- ----YesDAIUSGS2.992.77 Good NONE
981977-05-25 -- ----YesKLMUSGS2.792.77 Good NONE
971977-05-05 -- ----YesJCMUSGS3.982.82 Good NONE
961977-03-23 -- ----YesHENUSGS20.93.11 GoodVegetationLightNONE
951977-03-01 -- ----YesHENUSGS5.212.88 GoodVegetationLightNONE
941977-01-12 -- ----YesHENUSGS12.42.98 GoodVegetationLightNONE
931976-12-07 -- ----YesHENUSGS6.272.89 FairDebrisLightNONE
921976-11-11 -- ----YesHENUSGS41.33.250.090.60Good NONE
911976-10-13 -- ----YesJCMUSGS6.692.90 GoodVegetationLightNONE
901976-09-09 -- ----YesHENUSGS7.882.94 GoodVegetationLightNONE
891976-08-12 -- ----YesHENUSGS6.552.91 GoodVegetationLightNONE
881976-07-08 -- ----YesHENUSGS9.102.95 Fair NONE
871976-04-27 -- ----YesHEN/JCMUSGS8.872.940.010.80Fair NONE
861976-04-27 -- ----YesHENUSGS7.022.93 Good NONE
851976-03-18 -- ----YesHENUSGS15.03.050.110.60Fair NONE
841976-02-11 -- ----YesHENUSGS7.502.92 Good NONE
831976-01-05 -- ----YesHENUSGS7.522.92 Fair NONE
821975-12-03 -- ----YesSIMUSGS7.542.93 GoodVegetationLightNONE
811975-10-20 -- ----YesDAI/SIMUSGS7.332.98 Fair NONE
801975-08-13 -- ----YesJBUSGS12.53.07-0.010.30FairVegetationLightNONE
791975-07-08 -- ----YesKLMUSGS15.03.09 GoodVegetationLightNONE
781975-05-12 -- ----YesKLM/LACUSGS23.33.18 GoodClearNONE
771975-04-02 -- ----YesLTUSGS39.03.28 GoodClearNONE
761975-02-06 -- ----YesPLUSGS20.73.10 Fair NONE
751974-12-31 -- ----YesTRUUSGS9.072.95 GoodVegetationLightNONE
741974-11-14 -- ----YesTRUUSGS8.122.91 Good NONE
731974-10-03 -- ----YesTRUUSGS9.532.97 GoodClearNONE
721974-08-20 -- ----YesTRUUSGS12.33.00 Good NONE
711974-07-09 -- ----YesTRUUSGS23.13.14 Good NONE
701974-05-16 -- ----YesTRUUSGS25.73.17 GoodClearNONE
691974-04-03 -- ----YesTRUUSGS1973.880.010.90Good NONE
681974-03-06 -- ----YesROB/TRUUSGS1103.66 Excellent NONE
671974-01-09 -- ----YesTYSUSGS68.43.45 Good NONE
661973-11-13 -- ----YesSMIUSGS28.93.22 Good NONE
651973-10-04 -- ----YesTYSUSGS6.032.92 Good NONE
641973-08-02 -- ----YesTYSUSGS9.843.03-0.010.60Good NONE
631973-06-22 -- ----YesTYSUSGS12.43.06 Good NONE
621973-05-04 -- ----YesTYSUSGS21.33.120.020.80Good NONE
611973-04-04 -- ----YesTYSUSGS35.73.260.010.80Good NONE
601973-03-06 -- ----YesTYSUSGS6584.73-0.071.00Good NONE
591973-02-02 -- ----YesTYSUSGS41.03.31 Unspecified NONE
581973-01-05 -- ----YesTYSUSGS9.402.99-0.010.50Good NONE
571972-12-06 -- ----YesTYSUSGS86.03.56 GoodClearNONE
561972-11-01 -- ----YesTYSUSGS3.292.83 Good NONE
551972-10-04 -- ----YesTYSUSGS3.932.85 GoodClearNONE
541972-08-03 -- ----YesTYSUSGS5.022.90 FairVegetationLightNONE
531972-07-07 -- ----YesTYSUSGS5.122.860.010.50Fair NONE
521972-06-02 -- ----YesTYSUSGS5.172.86 Fair NONE
511972-05-02 -- ----YesTYSUSGS5.702.920.010.60Fair NONE
501972-04-03 -- ----YesTYSUSGS6.832.90 Fair NONE
491972-03-02 -- ----YesTYSUSGS7.932.95 Fair NONE
471972-01-04 -- ----YesMYRUSGS9.702.94 GoodVegetationLightNONE
461971-12-08 -- ----YesGOSUSGS6.492.86 GoodVegetationLightNONE
441971-09-29 -- ----YesPECUSGS6.212.86 Good NONE
431971-09-02 -- ----YesPECUSGS5.952.87 Good NONE
421971-07-07 -- ----YesTHOUSGS8.832.91 Good NONE
411971-06-08 -- ----YesPOLUSGS10.72.97 Fair NONE
401971-05-28 -- ----YesPOL/ROBUSGS11.72.96 Good NONE
391971-04-02 -- ----YesWALUSGS22.23.22 Unspecified NONE
381971-02-03 -- ----YesWALUSGS20.93.10 Excellent NONE
481971-02-02 -- ----YesTYSUSGS8.042.91 Good NONE
371971-01-04 -- ----YesWALUSGS35.03.23-0.010.50Fair NONE
361970-12-09 -- ----YesROB/WALUSGS28.33.20 Good NONE
351970-11-16 -- ----YesKLMUSGS16.63.01-0.040.30Fair NONE
341970-11-12 -- ----YesKLMUSGS10.82.91-0.010.40Fair NONE
451970-11-02 -- ----YesPECUSGS4.692.83 Good NONE
331970-10-07 -- ----YesKLMUSGS6.332.87 FairVegetationLightNONE
321970-09-11 -- ----YesCOVUSGS7.592.84 Good NONE
311970-08-07 -- ----YesCOVUSGS7.712.89 Good NONE
301970-07-09 -- ----YesBECUSGS7.612.90 FairClearNONE
291970-06-03 -- ----YesKLMUSGS13.32.98 GoodVegetationLightNONE
281970-05-12 -- ----YesKLMUSGS13.42.99 Good NONE
271970-04-08 -- ----YesKLMUSGS22.13.10 Fair NONE
261970-03-10 -- ----YesKLMUSGS56.13.39 Good NONE
251970-01-14 -- ----YesPIR/LUNUSGS15506.00-0.210.40Excellent NONE
241970-01-14 -- ----YesPIR/LUNUSGS24406.95-0.560.60Good NONE
231970-01-09 -- ----YesKLMUSGS1503.800.040.50Good NONE
221969-12-21 -- ----YesROB/LIMUSGS6624.77-0.180.80Good NONE
211969-12-04 -- ----YesKLMUSGS7.392.89 Good NONE
201969-11-15 -- ----YesMEL/THOUSGS7.332.89 Good NONE
191969-11-05 -- ----YesKLMUSGS44.43.25-0.020.50Fair NONE
181969-09-03 -- ----YesDEM/PIRUSGS5.812.87-0.080.40Good NONE
171969-08-06 -- ----YesKLMUSGS7.902.930.010.40GoodVegetationLightNONE
161969-07-02 -- ----YesSMUSGS9.382.95-0.010.60Good NONE
151969-06-09 -- ----YesMARUSGS13.43.01 Good NONE
141969-05-06 -- ----YesKLM/PECUSGS18.43.07 GoodVegetationLightNONE
131969-04-09 -- ----YesKLMUSGS42.13.28 Good NONE
121969-03-07 -- ----YesKLMUSGS83.73.52-0.010.50Good NONE
111969-02-11 -- ----YesKLMUSGS18706.150.240.80Good NONE
101969-02-06 -- ----YesKLMUSGS14705.76-0.260.60Good NONE
91969-01-22 -- ----YesKLMUSGS1323.70-0.010.60Good NONE
81969-01-19 -- ----YesKLMUSGS6624.72-0.090.50Good NONE
71969-01-13 -- ----YesKLMUSGS7164.900.391.10Fair NONE
61969-01-13 -- ----YesKLMUSGS1893.800.150.30Good NONE
51969-01-08 -- ----YesKLMUSGS11.02.93 Good NONE
41968-12-05 -- ----YesKLMUSGS4.722.81 Fair NONE
31968-11-03 -- ----YesKLMUSGS31.43.17-0.010.60Good NONE
21968-11-03 -- ----YesKLMUSGS56.23.32-0.030.60Good NONE
11968-10-15 -- ----YesKLMUSGS4.342.80 Fair NONE