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

  • Site 191
  • Mad Island Marsh Preserve
  • 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)
    04/26/2006 14:00 27.5 25.5 No Flow 8.1 2.23 26.92 4 0
    04/26/2006 10:00 23 24 No Flow 8.1 5.6 66.08 5 0
    04/24/2006 09:30 27 27 No Flow 8 5.55 68.82 3 1.5
    04/22/2006 13:00 32 30 No Flow 8.2 .9 11.7 1 1.5
    04/12/2006 10:00 25 25 Normal 8.4 7.1 85.2 14 0 .3
    02/28/2006 10:00 21 21 8.6 7.5 84
    11/16/2005 10:00 16 16 Low 8 10.4 106.08 1 0.5
    08/06/2005 13:50 35 33 Normal 7.5 5.8 78.88 1 0.5
    05/10/2005 10:00 24 24 No Flow 8.3 5.05 59.59 2 0.5
    04/25/2005
    12/02/2004 10:00 14 14 Low 8.5 6.7 65.66 25 0
    04/23/2004 13:50 25.5 25 Normal 7.5 < 1 6 72 13 0
    03/12/2004 13:16 21 19 No Flow 7 75.6 7 0
    02/20/2004 10:00 16.76 No Flow 8.14 12.58 130.18 .3
    01/13/2004 08:30 17.5 15 8.3 9.2 92
    10/21/2003 10:00 26 26 Normal 8.4 7.9 96.38 7 0
    10/07/2003 10:00 28 28 Normal 8.3 5.6 70.56 1 0.25
    05/13/2003 10:00 26 Normal 8.3 6.25 76.25 30 0 .5
    04/22/2003 15:15 27 Normal < 1 8 99.2 3 0.5 .5
    05/21/2002 11:15 17 25 8.1 7 82.6 3 0.6
    05/21/2002 12:15 19 25 Normal 8.7 5.3 62.5 3 0.6
    04/18/2002 13:45 28 30 Normal 8.4 < 1 8.4 107.5 10 0 .25
    03/19/2002 10:25 22.5 23 8 18
    09/25/2001 24.25 7 5.9 68.7 2 0.5
    08/03/2001 16:20 31 30 8.4 < 1 6.3 80 2 0.2 .15
    04/03/2001 10:25 23 21.5 Low 8 8 88.8 10 0 < .15
    02/15/2001 20 21.5 7.9 8.1 89.9 2 0.5 .3
    08/18/1998 08:00 32 29 8.4 < 1 6 75.6 1 0.5 .15
    08/11/1998 08:30 28 27.6 8.5 < 1 6.2 75.8 6 0.1 .15
    08/04/1998 08:00 28 28.1 8.5 5.2 64 33 0.1 .46
    07/30/1998 13:30 32.5 32.5 8.2 < 1 6.7 89.1 27 0.1 .18
    02/04/1998 11:10 16 15.8 6.5 < 1 9.85 2 1.65
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