LCRA Logo   Colorado River Watch Network (CRWN) Water Quality Data

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  • Walnut Creek at Metric
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    Date Time Air Temp (C) Water Temp (C) Flow pH Nitrates-N (mg/L) DO Avg (mg/L) DO % Sat Cond (µS/cm) Days Since Rain Field Rain Gauge (in.) Secchi (M) Transparency (M) E.coli (cfu's)
    02/08/2024 17:21 15 17 2 7.5 4 8.4 87.36 640 5 0 120
    04/01/2022 14:26 27 26 3 8.3 < 2 10 122 520 4 0.55
    11/02/2021 17:20 22 19 3 7.4 2 5.6 60.48 650 4 0 > 1.22
    02/23/2021 13:10 26 21 3 8.6 < 1 8.5 95.2 520 5 0.923
    01/05/2020 12:00 12 12 2 7 8.27 77.74 530 30 0 > 1.2 16.65
    12/08/2019 10:45 16 14 2 7 < 0.3 7 68.6 570 20 0 > 1.2
    11/16/2019 11:30 12.5 10 3 7 9.05 81.45 470 3 0.15 > 1.2 49.95
    10/20/2019 10:45 22.5 30 1 7 < 0.3 3.5 45.5 530 5 0 1.1
    09/13/2019 10:00 26.5 25.5 3 7 < 0.3 4.53 54.81 454 3 1 0.84 233.1
    08/11/2019 10:00 26.5 27.5 1 7 0.3 3.28 41 540 8 0 96.5 16.65
    07/30/2019 09:29 29 26 1 7.1 2 3.5 42.7 580 3 1 0.95
    07/12/2019 09:15 28 26 3 7 < 0.3 5.32 64.9 450 4 0 1.05
    06/19/2019 10:00 27.5 25 5 7 < 0.3 6.53 78.36 370 4 0 1.2 99.9
    05/19/2019 09:30 26 23 5 7 0.9 7.4 85.84 560 6 0 116.55
    04/14/2019 11:30 15.5 15 3 7 < 0.3 8.85 88.5 490 7 0.3 1.1 166.5
    03/16/2019 15:00 16 15 3 7 0.3 11.65 116.5 510 4 0 > 1.2
    02/17/2019 10:15 12.5 14 2 7 < 0.3 8.9 87.22 30 0 > 1.2 16.65
    01/20/2019 12:30 8 9 5 7 0.6 11.6 102.08 580 14 0 > 1.2 116.55
    12/15/2018 11:30 13 10.5 3 7 10.17 92.55 560 7 0 > 1.2 66.6
    11/24/2018 14:15 20.5 15 2 7 0.3 9.8 98 540 2 0.4 > 1.2 66.6
    10/13/2018 10:15 25 23 5 7 0.3 5.67 65.77 450 4 0.1 > 1.2 249.75
    09/18/2018 12:30 29 25 3 7 5.83 69.96 370 3 0.1 > 1.2
    08/15/2018 10:30 21 26 2 7 2.12 25.86 460 3 0.2 1.03 166.55
    07/18/2018 10:30 30 26.5 1 7 6 73.8 420 8 0 1.05 50
    06/12/2018 12:50 30.5 27 1 7 0.3 4.8 59.52 460 30 0 0.87
    05/19/2018 09:40 25.5 24 1 7 < 0.3 3.85 45.43 510 15 0 1.14 16.65
    04/15/2018 11:00 15 14.5 2 7 0.3 6.7 66.33 520 6 0.1 > 1.2 149.6
    03/24/2018 12:00 23.5 19.5 3 7 0.3 3.53 38.48 520 6 0 0.82 166.5
    02/16/2018 10:30 19.5 16.5 2 7 0.3 7.47 76.94 510 20 0 > 1.2 316.5
    01/20/2018 12:10 15.5 12 3 7 0.3 8.97 84.32 520 5 0.1 > 1.2 66.6
    12/09/2017 11:00 12 9 3 7 9.1 80.08 440 2 1 > 1.2 266.4
    11/28/2017 17:08 23 16 2 7.4 < 1 8.1 82.62 540 30 0 > 1.22
    11/19/2017 10:00 24.5 21.5 3 7 0.3 4.4 49.72 560 18 0 > 1.2 183.15
    10/15/2017 09:45 3 2 3 7 0.6 4.5 33.3 550 15 0 1.2 532.8
    09/10/2017 11:30 25 22 2 7 0.6 5.5 62.7 600 16 0 > 1.2 283.05
    08/12/2017 10:45 30 27 2 7 0.3 3.4 42.16 450 6 0 1.2 183.15
    07/09/2017 11:00 25 26 1 7 1 5.6 68.32 570 30 0 > 1.2 183.2
    06/18/2017 11:45 29 26 1 7 0.75 4.32 52.7 620 15 0 > 1.2 166.5
    05/13/2017 11:00 22 21 3 7 0.25 6.15 68.88 500 2 0.8 > 1.2 316
    04/16/2017 10:45 23 21.5 3 7 0.25 5 56.5 520 5 0 > 1.2 249.75
    03/25/2017 10:00 17 17.5 3 0.25 4.9 51.45 500 1 0.2 > 1.2 199.55
    02/23/2017 10:00 19.5 16 3 7 0.25 7.93 80.89 430 4 1.6 > 1.2 116.55
    01/19/2017 11:45 15 14 5 7 0.75 8.03 78.69 390 1 3.4 0.8 333
    12/12/2016 12:30 15 13 3 7 0.5 7.65 73.44 550 5 0.1 < 1.2 49.95
    11/18/2016 12:00 20 19.5 2 7 0.75 4.75 51.78 560 8 0 > 1.2 83.25
    10/15/2016 11:00 26 23 2 7 0.5 4.27 49.53 570 2 0.3 > 1.2 516.15
    09/17/2016 11:30 28.5 26 2 7 1.5 3.55 43.31 610 20 0 > 1.2 399.6
    08/11/2016 09:40 29 28 1 7 1 2.45 30.87 550 30 0 > 1.2 1864.8
    07/07/2016 10:45 29 26 1 7 2 4 48.8 580 25 0 > 1.2 532.8
    06/08/2016 14:00 29 24 3 7 7.33 86.49 560 7 0 > 1.2 149.85
    05/14/2016 12:50 25 23 2 7 0.5 5.73 66.47 510 3 0.2 0.97
    04/15/2016 11:45 20 18 3 7 0.25 6.3 66.78 430 3 1.2 1.1 149.85
    03/12/2016 10:45 19 17 5 7 0.5 6.35 66.04 440 2 3 1.02 199.8
    02/14/2016 11:00 17.5 16 2 7 1 7.6 77.52 610 30 0 > 1.2
    01/17/2016 14:20 15 13 1 7 0.75 10.1 96.96 590 20 0 > 1.2
    12/20/2015 10:00 13.5 13 3 7 1 9.1 87.36 600 22 0 > 1.2 116.55
    11/15/2015 10:40 16 16 3 7 1.5 7.8 79.56 620 16 0 1.03
    10/27/2015 09:40 18 17.5 3 7 1.5 7.62 80.01 440 2 7.5 0.93 50
    09/25/2015 09:10 26 23 1 7 3 3.25 37.7 650 15 0 0.46 249.75
    08/25/2015 09:40 31 27 1 7.5 2.5 2.75 34.1 620 5 0.79 1415
    07/11/2015 09:40 27 25 2 7 1.5 7.05 84.6 670 6 0 1.1 799.2
    06/13/2015 10:30 28 24 3 1.5 7.3 86.14 700 1 0.2 1.02 100
    06/10/2015 09:47 30 25 3 7.07 < 4 5.4 64.8 710 13 0 > 1.22
    05/16/2015 10:15 24 22 5 7 0.75 7.1 80.94 520 1 2 0.99
    04/18/2015 08:50 19.5 19.5 3 7 0.75 6.45 70.31 380 1 2 0.37 2247.75
    03/14/2015 10:00 17 15 3 7 1.5 8.5 85 630 4 0 1.09 183.15
    02/15/2015 09:30 17 15 2 7 7.3 600 10 0 > 1.2
    01/24/2015 11:00 12 11 5 7 0.75 9 82.8 390 2 3 0.33 316.35
    12/20/2014 11:00 12 13 2 7 0.25 8.7 83.52 440 1 1 1.15 865.8
    11/30/2014 09:30 21 18 2 7 0.5 6.83 72.4 540 8 0 > 1.2 266.5
    10/28/2014 17:20 25 21 3 7.61 < 2 5.1 57.12 540 25 0.012 1.22
    10/12/2014 10:30 19 20 2 7 0.5 7 77 350 1 1.2 0.87
    09/13/2014 11:00 17 24 1 7 < 0.25 .5 5.9 440 30 0 1.1 1298.25
    08/16/2014 09:15 28 26 1 7 0.5 2.93 35.75 570 20 0 1.15 915.75
    07/05/2014 09:55 26 27 1 1 4.45 55.18 590 8 0 1.04 616
    05/16/2014 12:10 17 20 3 7 0.5 7.1 78.1 470 3 3 1.2
    02/28/2014 08:30 16 13.5 2 7 0.5 7.6 73.72 600 3 0.6 > 1.2
    12/19/2013 13:45 21.5 15.5 2 7 0.5 9.23 93.22 620 15 0 > 1.2 366.3
    10/22/2013 09:30 15 17 3 7 0.25 7.2 74.88 390 1 0.2 0.97 600
    09/21/2013 10:15 23 23 5 7 0.5 7.1 82.36 260 1 2.25 0.44 2164.5
    08/22/2013 09:30 29 26 1 7 0.5 3.65 44.53 520 15 0 0.88 2364.3
    07/13/2013 09:40 30 27 1 7 0.5 3.38 41.91 490 25 0 0.82 599.4
    06/22/2013 09:30 24 25 1 7 0.5 2.45 29.4 510 6 0 > 1.2 566
    04/19/2013 11:45 15.5 15 2 7 0.5 7.5 75 450 1 0.3 1.18 333
    03/17/2013 11:00 19 18 1 7 0.5 6.63 70.28 570 7 0 > 1.2 666
    01/05/2013 11:10 11 2 7 0.5 8.9 490 1 1 0.98 1581.75
    12/02/2012 09:45 21 19.5 1 7 1 4.25 46.32 610 30 0 > 1.2 333
    11/04/2012 09:30 20 19 2 7.5 2 5.12 55.3 630 20 0 > 1.2 183.5
    10/03/2012 12:45 22.5 22 2 7 0.25 7.85 89.49 440 4 0 > 1.2 366.3
    09/01/2012 10:10 28 26 1 7.5 1.25 3.82 46.6 550 30 0 > 1.2 3080.25
    08/12/2012 10:00 29 27 2 7 2.5 3.75 46.5 590 20 0 > 1.2 249.75
    07/07/2012 09:50 26 28 1 7.5 0.75 3.02 38.05 530 30 0 1.15 16.5
    06/02/2012 09:50 25 24.5 2 7 3 4.5 53.55 630 25 0 1.14 1550
    05/05/2012 09:50 26 23.5 2 1 5.2 60.84 640 30 0 0.96 1664.5
    04/08/2012 10:30 22.5 20 3 7 0.75 4.2 46.2 650 9 0 > 1.2
    03/04/2012 10:10 15 13 3 7 0.5 6.5 62.4 650 14 0 > 1.2 432.8
    02/04/2012 10:00 13 16 5 7.5 0.5 8.6 87.72 450 1 0.25 0.58 135
    01/07/2012 11:30 13 14 2 7.5 0.5 8.25 80.85 640 20 0 > 1.2 316.35
    12/03/2011 11:00 17 16 2 7.5 0.25 7.47 76.19 410 1 0.2 1.1 50
    11/13/2011 10:50 19 13 2 7.5 0.25 2.33 22.37 620 30 0 0.89 150
    10/08/2011 10:15 26 23 1 7.5 0.25 2.37 27.49 520 30 0 > 1.2 1631.5
    09/03/2011 10:00 31 25 1 7.5 0.25 .8 9.6 460 30 0 0.79 116.55
    08/06/2011 09:00 28 33 1 7 0.25 .77 10.47 490 60 0 0.68 100
    07/09/2011 09:15 28 26 1 7 < 1 1.3 15.86 520 20 0 0.66 300
    06/11/2011 09:15 27 26 2 7.5 < 1 1.12 13.66 510 80 0 0.95 350
    05/21/2011 10:00 24 22 2 7.5 < 1 4.87 55.52 380 60 0.1 0.8 3100
    04/30/2011 10:00 25 22 2 7.5 < 1 6.5 74.1 580 50 0 0.49 2050
    03/27/2011 10:00 14.5 16.5 2 7.5 1 4.03 41.51 650 30 0 0.82 950
    02/13/2011 10:30 21 11 3 7 < 1 9.52 87.58 540 10 0 1.06 350
    01/17/2011 11:00 10.5 11 3 7.5 < 1 9.8 90.16 390 1 1.5 0.9 350
    12/05/2010 11:30 11 13 1 7.5 1 8.45 81.12 660 50 0 > 1.2 250
    11/10/2010 14:00 25 18 2 7 < 1 6.8 72.08 540 20 0 1.05 1700
    10/17/2010 10:30 21 22 3 7 < 1 5.3 60.42 610 20 0 > 1.2 2850
    09/12/2010 09:50 28 26 5 7.5 6.07 74.01 540 3 0 0.89 950
    08/15/2010 08:30 27 26 2 7.5 < 1 2.7 32.94 610 4 0 1.04
    07/10/2010 12:00 28 26 5 7 < 1 7.05 86.01 350 1 3 0.75 1000
    06/19/2010 10:45 27 26 3 7 < 1 4.28 52.16 660 10 0 1.08 6000
    05/22/2010 11:00 26 24 2 7.5 < 1 6.33 74.64 530 5 0 1.12
    04/18/2010 11:30 18 17 3 7.5 < 1 7.7 80.08 1 2.6 0.79 1350
    03/27/2010 10:45 16 16 3 7.5 < 1 9.35 95.37 560 3 0.52 0.71 400
    02/08/2010 13:00 8 11 5 8 1 10.6 97.52 620 3 0 > 1.22 180
    01/18/2010 10:20 11 10.5 5 7 < 1 9.53 86.68 470 2 2 0.55 700
    12/13/2009 11:30 15 13.5 3 7 < 1 9 87.3 610 10 0.001 0.9 1000
    11/14/2009 11:30 22 20 2 7 < 1 5.16 660 8 0 > 1.2 932
    10/11/2009 13:00 16 18 3 7.5 7.88 83.48 1 2 1 1500
    08/30/2009 10:30 28.5 25.5 2 7.5 < 1 .5 6.05 530 3 0.25 0.83
    06/19/2009 11:00 30 26 2 7 1 2.2 26.84 560 10 0 0.91 2613.5
    05/17/2009 11:00 20 19 3 7 6.8 73.44 350 1 1.78 0.44 1831.5
    04/17/2009 17:20 26 17 3 8 < 1 9 620 5 0 > 1.22
    03/15/2009 16:00 12 15 3 7 < 1 9.88 98.75 2 1 0.75 466
    02/24/2009 16:50 26 17 2 8.2 < 1 8.7 90.48 520 7 0 > 1.22
    02/01/2009 14:20 24 16 2 7.5 < 1 8.63 87.98 560 60 0 0.85
    12/14/2008 11:30 22 19 2 7 < 1 6.05 65.34 540 20 0 118
    11/16/2008 11:00 14.5 16 2 7.5 < 1 5.73 58.4 590 10 0 1.17
    10/21/2008 16:53 26 26 5 7.72 < 1 5.6 68.32 470 5 0 > 1.22
    10/19/2008 11:00 21 21 2 7 < 1 4.8 53.76 530 6 0 1.055
    09/07/2008 13:55 32 26.5 2 7 < 1 3.6 44.28 520 30 0 0.93
    08/10/2008 10:05 30 27 2 7 < 1 1.13 13.95 480 30 0 0.73
    07/07/2008 11:07 29 27 1 8.15 < 1 6.95 86.18 410 30 0 > 1.22
    07/05/2008 12:05 33 28 2 7 < 1 5.15 64.89 550 7 0 0.6
    06/17/2008 10:35 31 28 2 8.44 < 1 10.25 129.15 450 3 0
    06/08/2008 11:00 29 27 3 7.5 < 1 3.33 41.23 510 9 0.1 0.99
    05/18/2008 14:00 33 26 3 7 < 1 7.4 90.28 500 4 0 1.17
    04/20/2008 11:50 22 18 3 7.5 < 1 7.6 80.56 470 3 0 > 1
    03/11/2008 14:40 14 16 3 7 < 1 9.05 92.31 350 1 1.5 0.88
    01/27/2008 12:10 12.5 13 3 8 < 1 12.85 123.36 530 2 0.4
    12/01/2007 10:00 20 17 2 7.5 < 1 6.4 66.56 620 1 1
    11/04/2007 13:12 25 21 1 7 < 1 5.45 61.04 610 12 0
    10/23/2007 16:00 21.7 1 0.52 875
    10/07/2007 14:24 28 26 1 7 < 1 7.33 89.47 580 12 0
    08/26/2007 10:28 22 28 2 7 < 1 4.58 57.65 640 5 0
    07/07/2007 12:01 28 25 3 6.5 < 1 7.35 88.2 550 2 1.5
    06/09/2007 10:30 30 24.5 3 7.5 1 7.15 85.09 640 6 0
    04/08/2007 15:00 14 11.5 3 7.5 < 1 11.18 103.93 440 1 0.5
    03/09/2007 15:00 29 20.5 2 7.5 < 1 8.83 97.96 700 30 0
    01/28/2007 14:24 16.5 12 3 7 < 1 10.8 101.52 660 4 0
    12/17/2006 10:28 23 17 2 7.5 < 1 8.2 85.28 460 17 0
    11/19/2006 10:30 6 5 2 7 < 1 9.93 79.4 680 21 0
    01/11/2005 10:15 20 18 Normal < 1 8.5 90.1 670 0
    10/29/2004 09:18 23 24 High < 1 6.7 79.06 490 0 3860
    07/31/2004 09:05 28 27 Normal 7.5 < 1 7.15 88.66 390 1880
    06/20/2004 10:13 30 27 Low 7.4 < 1 8.9 110.36 590 1 11 850
    05/17/2004 11:35 28 23 Normal 7.5 < 1 8.2 95.12 510 5 520
    03/17/2004 09:50 20 19 Normal 7.5 < 1 9.65 104.22 520 2 0.5 260
    02/07/2004 09:50 15 16 Normal 7.6 < 1 10.75 109.65 440 3 1.5 300
    11/30/2003 11:23 20 12 Low 7.4 < 1 9.85 92.59 630 210
    06/28/2003 09:00 27 28 Normal 7.6 1 7.15 90.09 540 15 0 .27 12.5
    06/01/2003 08:44 25 25 Low 7.6 < 1 5.6 67.2 520 10 0 29
    04/22/2003 08:50 17.5 18 Normal 7.4 1 5.2 55.12 0 0.1 > .3
    03/31/2003 15:40 23 18 Normal 7.6 < 1 11.5 121.9 6 0
    03/10/2003 10:05 16 15.5 Normal 7.7 < 1 10.7 108.07 660 0.33 180
    02/09/2003 16:18 24.5 13 7.7 < 1 13.7 131.52 580 1 1
    12/30/2002 09:00 19.5 15.5 Low 7.6 < 1 8.4 84.84 640 13 0
    11/03/2002 14:18 13.5 16 Normal 7.4 < 1 9.15 93.33 430 0 2 1680
    09/29/2002 01:50 29 25 Low 7.1 < 1 11.95 143.4 550 14 0
    08/30/2002 09:00 25 25 Low 7.4 < 1 5.6 66.1 610 20 0
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