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

  • Site 238
  • Walnut Creek at IH-35
  • Hydromet Rainfall
  • Hydromet Flow
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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)
    01/24/2019 17:09 14.5 11 3 7.3 < 2 9.45 86.94 620 22 0 > 1.2
    05/28/2018 14:05 36.5 32 2 8 < 1 9.4 125.96 470 8 0 > 1.22
    10/17/2014 16:37 25 22 5 7.87 < 2 6.85 78.09 650 6 0 0.83
    03/29/2013 17:00 24.5 20.5 1 8 < 1 12.6 139.86 470 9 0 > 1.2
    02/27/2013 09:15 9 9.5 1 7.5 < 1 7.85 69.86 560 30 0.03 1.2
    01/31/2013 09:20 9 8 1 7.5 < 2 9.2 79.12 580 22 0.01 > 1.2
    12/30/2012 14:45 8 7 1 7.5 12.35 103.74 600 30 0 > 1.2
    11/25/2012 16:40 19 14 1 7.5 < 1 10.1 98.98 560 30 0 > 1.2
    11/03/2012 12:50 26 20 2 7.5 < 1 6.65 73.15 540 23 0 > 1.2
    10/23/2012 17:02 26.5 22.5 3 7.47 < 1 5.35 61.52 580 7 0 > 1.22
    09/30/2012 16:30 24.5 23 3 7.5 < 1 7.15 82.94 310 0 1.67 > 1.22
    08/30/2012 12:00 31.5 29 1 7 < 1 5.4 69.12 510 14 0 > 1.22
    07/28/2012 11:15 29 27 2 7.5 < 1 5.05 62.62 510 14 0 > 1.2
    06/27/2012 08:45 29.5 28 1 7 < 1 5.7 71.82 430 7 0 > 1.22
    05/30/2012 08:45 24.5 25 1 7.5 < 1 4.35 52.2 590 15 0 > 1.22
    04/25/2012 10:10 23.5 20 1 7.5 4.7 51.7 620 10 0 > 1.22
    03/21/2012 09:38 14 16 3 8 < 2 8 81.6 570 1 2.68 > 1.22
    08/20/2011 11:10 30 26 1 7 < 1 .85 10.37 880 30 0 0.05
    07/09/2011 13:50 32 28 1 9.5 < 1 17 214.2 350 14 0 0.4 49.95
    06/11/2011 13:15 28.5 25.5 1 7 < 1 4.6 55.66 520 10 0 1 49.95
    05/21/2011 12:10 24 21 2 7 < 1 6.35 71.12 490 0.5 0.66 > 1 965.7
    04/16/2011 13:00 25 17.5 1 7 < 1 5.25 55.12 580 10 0 > 1.2 116.65
    02/19/2011 12:45 20 16.5 2 7 < 1 10.1 104.03 570 7 0 > 1.2 116.55
    01/15/2011 13:25 9 8 5 7.5 < 1 11.1 95.46 560 0 0.5 0.8 1065.6
    11/20/2010 14:55 23.5 13.5 2 7 10.3 99.91 610 12 0 > 1.2 149.85
    10/23/2010 12:15 25 21.5 1 7 4.9 55.37 560 10 0 1.2 166.5
    08/14/2010 11:10 31 29 2 7.5 < 1 6.1 420 10 0 > 1.1 66.6
    07/10/2010 13:15 29 27.5 3 7.5 < 1 7.95 99.38 370 3 1 > 1.1 333
    06/19/2010 13:25 30.5 29 2 7.5 < 1 9.5 121.6 500 3 0 > 1.2 33.3
    05/22/2010 13:30 32 27 2 7 8.9 110.36 560 6 0 > 1.2 133.2
    03/20/2010 14:05 7 11.5 5 7 < 1 10.1 93.93 280 0 1.8 0.2 982.35
    02/20/2010 12:45 17.5 14.5 3 7.5 < 1 13.5 133.65 690 7 0 > 1.2 33.3
    01/16/2010 13:20 15 11.5 5 7.5 < 1 10.3 95.79 370 1 2 < 0.25 66.6
    12/12/2009 14:20 11.5 11 3 7.5 < 2 12.25 112.7 700 3 0 > 1.1 116.55
    11/14/2009 12:35 23.5 18.5 2 7.5 < 1 8.95 95.77 670 14 0 > 1.1 66.6
    06/24/2001 12:00 29.5 27 Normal 8 9 109.8 390 1 0.1 < .15
    05/13/2001 10:45 25 21.5 Normal 7.1 < 1 9.8 108.2 630 1 0.1
    04/12/2001 15:30 21 19 High 7.5 < 1 10 108 750 0 0 > .3
    03/17/2001 09:30 9 13 High 7.3 < 6 9.9 93.1 730 0 0.01 .3
    02/17/2001 10:15 8 9.5 High 7.3 < 2 10.1 87.9 570 1 .27
    01/07/2001 12:00 15 13.5 High 7.3 < 2 10.2 96.9 730 0 0.01 .27
    12/03/2000 11:15 6 11 High 7.4 < 4 10 90 770 0 0.01 .3
    10/29/2000 09:06 24.5 22.5 High 8.6 < 1 7.5 84.2 730 1 1 .24
    09/24/2000 09:30 29.5 27 Low 7.8 < 1 3.5 42.7 550 2 0.01 .15
    08/17/2000 18:00 33.5 29.5 Low 7.8 < 1 8.7 110.5 3 0 < .06
    07/28/2000 12:25 33.5 28 8.6 < 1 10.8 133.3 8 1
    04/18/2000 25 22 Normal 8.2 < 1 11.25 128.25 6 0
    02/04/2000 16:25 14.5 12.5 Normal 8.3 < 1 14 133
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