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

  • Site 253
  • Williamson Creek at Old Bee Caves Rd
  • 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)
    10/12/2008 09:45 22.4 21.9 2 7.3 2.45 27.88 590 51 0 > 1.22
    09/12/2008 10:40 28.9 25.7 2 7.5 8.05 97.73 500 21 0 > 1.23
    10/13/2007 13:56 28.3 24.1 2 6.45 76.24 670 14 0 > 1.22
    08/08/2007 16:35 31.7 27.5 5 7.7 7.1 88.75 690 12 0 > 1.24
    06/30/2007 15:35 29.7 25.9 5 7.6 7.9 96.22 730 1.6 5.11 > 1.22
    05/13/2007 16:12 25.7 23.6 5 7.5 720 3.5 0 > 1.22
    03/31/2007 15:10 23.8 19.3 5 7.6 8.45 91.77 710 1 0.72 > 1.22
    02/18/2007 16:28 18.4 12.4 5 7.5 11.2 106.18 750 22 0 > 1.22
    01/27/2007 14:25 17.3 14.8 5 7.6 10.25 102.09 760 3 0 > 1.22
    12/17/2006 11:15 2 7 6.85 560 17 0 > 1.22
    08/13/2006 15:15 35.3 33.9 1 8 350 48 0 0.73
    07/02/2006 15:00 29.5 27.8 Low 7.3 9.6 120.58 560 7.5 0.09 > 1.22
    05/29/2006 17:33 24.1 22.1 Low 7 6.25 71.38 730 19 0.15 > 1.22
    04/23/2006 16:54 29.4 23.4 Low 7.3 6.8 79.42 470 2.2 2.86 < 1.24
    03/26/2006 15:40 23.9 18.7 Low 7.4 7.75 83.24 480 6 0 > 1.22
    02/05/2006 15:52 24.1 18.4 Low 7.3 6.7 71.56 620 8 0 > 1.22
    01/15/2006 14:52 21.8 15.1 No Flow 7.5 6.2 62.12 1060 75 0 > 1.22
    12/11/2005 16:30 16.1 10.2 No Flow 7.2 3.1 28.02 770 42 0 > 1.22
    11/06/2005 16:30 28.3 23.4 Low 7.4 5.9 68.91 520 6 0 > 1.22
    10/23/2005 16:30 20.4 19.8 Low 7.5 11.1 121.66 490 13 0 > 1.22
    08/14/2005 15:40 33.1 29.3 Low 7.5 9.2 118.31 470 3 0.03 > 1.22
    07/24/2005 14:30 30.7 30.4 Low 7.3 520 2.8 1.6 > 1.22
    07/03/2005 15:00 25.6 36.9 Low 7.3 520 32 0 > 1.2
    05/22/2005 18:00 30.6 28.5 Low 6.6 83.82 580 8 0 > 1.2
    04/17/2005 18:00 21.5 19.8 Low 8.2 89.87 650 41 0 > 1.2
    02/20/2005 16:00 20.3 15.6 Normal 690 2.5 0.18 > .3
    01/23/2005 12:00 5.4 9.6 Low 11.05 98.57 630 60 0 > .2
    01/08/2005 15:00 14.3 12.9 Low 10.1 96.76 600 6 > 0.3
    12/12/2004 17:30 16.4 16.8 High 8 8.75 90.65 690 12 0 > 0.25
    11/21/2004 11:10 18.9 18.8 High 7.9 8.15 87.69 620 0 0.64 > .25 0.25
    10/11/2004 10:20 22.3 22.3 Low 8.1 8.1 92.83 5 0 > 1.3 1.3
    09/05/2004 14:25 32.6 28.9 Low 8.1 7.05 90.1 510 13 0 > 1 > 1
    08/08/2004 15:45 29.9 28.1 Low 8 7.65 96.54 550 9 0 > .2 0.2
    07/11/2004 11:00 26.9 23.9 High 7.9 7 82.46 700 10 0 > .3
    05/23/2004 16:20 28.8 23.9 High 8.1 7.6 89.53 10
    02/15/2004 14:00 14.5 12.1 Normal 8 10.25 96.56 1 1.4 > .2
    02/01/2004 15:50 15.5 13.2 Low 7.9 9.65 93.03 8 0 > .2
    01/11/2004 15:50 16.8 11.1 Low 8 9.3 85.75 550 30 0 > .2
    12/28/2003 11:20 13.1 14.2 Low 7.9 8.35 82.16 560 16 0.05 > .2
    11/23/2003 16:47 12.7 17.1 Low 7.7 5.6 58.35 520 6 0 > .3
    11/02/2003 16:59 24.7 23.2 Low 7.7 5.4 62.86 460 22 0 > .3
    10/12/2003 17:30 24.2 22.9 Normal 7.7 6.15 71.22 420 3 1.2 > .3
    09/14/2003 16:40 22.9 22.9 High 7.7 7.2 83.38 180 0 2.3 > .3
    08/24/2003 16:30 33.3 30.4 Low 7.9 420 11 0 > .2
    08/04/2003 08:30 25.6 24.4 Low 7.7 3.3 39.2 510 30 0 > .3
    07/06/2003 16:20 28.2 26.4 Low 7.7 5.5 67.54 430 2 > .3
    06/15/2003 14:40 27.1 27.3 Low 7.8 7 87.22 380 2 1.3 > .3
    05/18/2003 17:30 31 26.2 Low 7.7 5.75 70.38 610 87 0 > .3
    05/04/2003 17:10 30.2 24.7 Low 7.8 0.3 6.5 77.61 610 73 0 > .3
    04/22/2003 18:15 18.8 18.4 Low 7.8 7.7 82.24 650 59 0 > .3
    04/06/2003 18:05 28.7 23.2 Low 7.9 7.3 84.97 670 11 0 > .3
    03/09/2003 15:30 21.4 18.2 High 8 9.3 98.95 680 17 0.2 > .3
    02/16/2003 17:27 12.9 11.8 Normal 7.9 10.45 97.81 660 35 0.2 > .3
    02/02/2003 16:02 20.8 16.4 High 8 9.6 98.69 670 21 0.3 > .3
    01/12/2003 15:03 5.3 9.8 High 7.9 10.8 96.77 460 0 1.4 > .3
    12/29/2002 15:30 19.7 15 Normal 8.1 9.4 94 670 6 0.05 > .3
    12/15/2002 14:30 20.7 15.2 High 8 9.35 93.87 720 3 0.3 > .3
    12/01/2002 15:30 15.1 13.1 High 8.3 12.35 118.81 670 27 0 > .3
    11/17/2002 15:30 19.6 16 High 8.1 8.8 89.76 690 13 0 > .3
    11/03/2002 17:00 14 16.2 High 7.9 8.7 89.09 640 0 0 > .3
    09/22/2002 16:30 29.8 24.9 Low 7.7 5.95 71.28 510 3 0.7 > .2
    08/25/2002 18:15 32.1 27 Low 7.7 4.9 59.8 660 22 0 .2
    08/11/2002 16:30 31.1 28.6 Low 8 < 1 9.3 115.8 660 1 0.3 .3
    07/27/2002 16:30 31.4 28.1 High 7.1 7.1 88.2 710 10 0
    07/07/2002 13:30 30.5 27 High 8.1 7.8 94.6 680 2 0.5 .3
    06/16/2002 17:00 29 27 Low 7.7 7.5 91.5 390 0 .2
    05/19/2002 17:45 23.5 24.5 Low 7.7 4.1 48 680 43 0 .3
    05/05/2002 17:30 30.8 23 Low 7.7 5.1 58.1 630 28 0 .2
    04/18/2002 17:30 28.8 23.8 Low 7.8 6.4 73.4 620 11 0 .2
    04/07/2002 14:30 21.5 17.5 Low 7.8 8.1 83.4 0 0.4 .3
    03/24/2002 16:28 25.6 20.4 Normal 8.1 < 1 8.6 93.6 5 0
    03/10/2002 16:00 13.9 13.1 Low 7.8 < 1 11.1 104.1 640 0 0.09 .3
    02/24/2002 15:30 24.4 17 Normal 7.8 8.8 89.8 640 18 0 .3
    02/10/2002 16:45 12.1 12.9 Normal 7.8 < 1 11.2 105.1 620 4 0 .3
    01/27/2002 16:50 20.3 16.6 Normal 7.6 < 1 10.3 104.2 3 0.1 .8
    01/13/2002 15:00 18.8 14.2 Normal 8.1 1 10.2 97.8 1.5 .3
    12/30/2001 15:30 10.2 12.6 High 7.6 11.1 103 700 0 .3
    12/15/2001 16:45 16.4 13.9 High 7.8 < 1 280 0 1.9 .09
    12/02/2001 17:00 16.8 16.2 High 7.8 8.7 87.3 530 0 0.9 .4
    11/18/2001 17:00 22.2 20.2 High 7.8 7.8 84 .3
    11/04/2001 16:30 22.8 21.6 Low 7.6 5.9 65.1 0 .3
    09/23/2001 18:50 26.1 25.4 Low 7.6 5 59.4 430 1 0.7 .3
    09/01/2001 19:00 27.4 27.9 Low 7.9 6.3 77.4 570 1 3.6 .3
    08/12/2001 18:06 35.6 33.4 7.8 2.8 37.1 630 47 0
    07/25/2001 18:53 33.6 34.5 Low 9.8 27 0 .05
    07/10/2001 19:00 31.4 35.1 Low 8.4 11.2 154.8 370 12 0
    06/26/2001 19:02 29.7 29.8 Low 7.8 4 0 .2
    06/12/2001 20:00 29.7 26.8 Low 3.7 45 4 0 1
    05/29/2001 19:15 28.1 26.3 Low 7.9 6.4 76.6 660 3 0 1
    05/13/2001 19:00 25.3 24.6 Low 7.9 6.3 73.3 680 6 0 1
    05/01/2001 17:00 26.4 23.9 Low 7.9 7.8 90.3 640 0 < .3
    03/25/2001 15:53 18.4 18.1 Normal 8.1 11.2 116.7 1 0.4 1
    03/11/2001 16:00 19.9 16.2 High 7.9 9.2 91.9 700 0 0.15 1
    02/24/2001 11:32 24.7 18.4 Normal 8.1 9.4 98.5 700 1 0.8 1
    02/10/2001 18:17 8.9 12.8 High 7.9 9.2 85.6 700 2 0.08 1
    01/27/2001 13:31 12.3 14.3 High 7.9 9.3 89.4 0 0
    01/15/2001 14:30 13.4 14.4 High 7.8 9.1 88.1 730 2 0.17 1
    12/31/2000 13:45 8.6 10.7 High 7.9 10.5 93.4 750 0 1
    12/16/2000 14:30 14.3 13.9 High 10.3 98.7 700 3 1
    11/19/2000 18:33 7.8 13.9 High 7.7 8.9 85.3 710 1 1
    11/04/2000 11:00 20.3 20.2 High 8.1 8.4 91.6 1
    10/16/2000 18:48 23.7 23.2 Low 7.7 5.3 60.6 440 1 0.5 1
    10/02/2000 18:35 28.7 25.1 Low 8 13.4 158.4 470 0 1
    09/18/2000 19:00 27.9 25.4 Low 8.1 8.9 105.1 670 5 0 1
    09/06/2000 19:15 28.5 28.1 Low 8.1 420 15 0 1
    08/23/2000 19:00 30.6 29.8 Low 7.8 10.1 128.2 640 1 0.63 1
    07/15/2000 18:55 34.9 25.7 Low 4.1 49 0 1
    07/03/2000 18:40 28.7 28.2 Low 11.7 145.5 0 .3
    05/21/2000 20:06 26.4 23.3 Low 5.4 61.9 2 1
    04/18/2000 17:35 25.9 22.3 Low 7.6 85 4 0 < .61
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