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

  • Site 61
  • Colorado River at Selkirk Island
  • 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)
    11/19/2004 10:00 16 19 Normal 8.2 < 1 7.8 84.24 200 2 3
    10/24/2003 09:40 23 23 Normal 8.2 < 1 6.3 73.08 12 0
    09/26/2003 10:15 24 25 Normal 8 < 1 6.2 74.4 420 6
    08/28/2003 10:15 34 32 Normal 8.6 < 1 6.3 84.42 16 .1
    04/11/2003 10:00 17 18 Normal 1 690 0.3
    02/14/2003 10:00 20 16 Normal 8.3 < 1 3.3 33.66 6 0
    01/17/2003 10:00 6 Normal < 1 5 0
    11/22/2002 10:00 18 18 Normal 8.4 1 13.2 139.92 6 0
    10/25/2002 09:45 26 24 High 8 < 1 6.2 73.16 0 4 .3
    09/27/2002 09:45 31 31 Low 8.4 < 1 7.8 102.96 5 0 .02
    09/06/2002 09:45 24 33 Normal 8 < 1 5.3 72.08 0 0.25
    05/10/2002 10:15 25 27 Normal 8 < 1 7 85.4 .1
    04/12/2002 09:55 24 23 Normal 7.7 < 1 7.6 86.6 290 4 0 .1
    02/15/2002 10:00 17 18 Low 8.4 < 1 10 104 1110 3
    01/18/2002 09:45 18 15 Normal 8.3 < 1 9.8 96 520 0 0.1
    11/17/2001 10:00 10 15 High 8 < 1 9.8 96 180 1 2.5 .01
    11/16/2001 10:00 17 21 Normal 8.1 < 2 9.8 107.8 0 2
    10/26/2001 09:45 20 22 Normal 7.8 < 1 7.5 83.4 1080 13
    09/28/2001 10:15 23 24 Normal 8.3 < 1 5.6 64.4 8 0 .1
    09/07/2001 11:00 28.5 28 High 7.7 < 1 5.3 65.1 310 2 1
    04/11/2001 10:00 23 22 Normal 8.3 < 1 8.2 91.8 520 17 0
    10/27/2000 10:20 26 24 Normal 7.8 < 1 6.4 74.2 2 2
    09/29/2000 19 36 Normal 8.1 < 1 6.8 95.2 3 0
    09/11/2000 10:30 32 30 Normal 8.4 < 1 7.3 93 24 0
    05/12/2000 10:00 29 25 Normal 8 < 1 6.9 81.4 10 0
    10/01/1999 10:07 26 23 Normal 8.2 < 1 6.7 76.4 1 6 .09
    09/03/1999 10:00 26 32 Normal 8.7 < 1 8.9 117.5 0 0.5
    06/11/1999 09:35 34 28 Normal < 1 7.5 93 1 5 .1
    05/14/1999 10:15 27 28 Normal 8.9 < 1 5.7 70.1 3 1.75 .1
    04/19/1999 10:30 16 23.5 Normal 8.2 < 1 8.5 97.8 5 0.2
    03/19/1999 10:00 23 20 Normal 8.6 8.9 96.1 6 0 .2
    02/19/1999 10:00 16 16 8 < 1 10 100 3 0.5
    10/02/1998 10:00 29 30 Normal 8.6 < 1 7.7 98.6 6 0.1 .15
    09/04/1998 10:00 29 30 Normal 8.6 9.6 122.9 11 0.1 .75
    06/12/1998 10:10 17 16 Normal 8.6 < 1 6.9 68.5 89 0 .1
    05/15/1998 10:00 25 30 Normal 7.8 4.3 54.4 61 0
    05/03/1998 14:20 28.5 26 Low < 1 10.2 122.4 15 0 .29
    04/19/1998 14:35 29 21 Low < 1 8.1 89.4 1 1 .33 42
    04/17/1998 10:00 20 20 Normal 8.2 < 1 6.8 73.4 33 0 .1
    04/05/1998 14:30 25 22 Normal < 1 8.3 93 5 .36 146
    03/29/1998 14:35 24 22 Normal 7.9 < 1 7.7 86.5 13 0 .14 215
    03/20/1998 10:00 12 16 High 8.4 < 1 6.5 65 5 0 .3
    03/08/1998 14:40 12 18 Normal 7.6 < 1 8.6 89.4 1 0 .18 257.5
    02/22/1998 14:45 19 15.5 Normal 7.6 75 1 2 .09
    02/15/1998 14:28 18 15 High 8.2 8.3 80.8 1 0.13 .18 615
    02/08/1998 14:20 23 17 Normal 8 8.6 87.7 3 2 .29 85
    02/06/1998 10:15 10 7 Normal 8.2 < 0.5 7.9 64.4 1 2 .25
    02/01/1998 14:32 17 17.5 Normal 8.9 91.9 1 1 .45 815
    01/25/1998 10:30 19 4 8 < 1 7.7 5 0 1
    11/07/1997 09:50 19 10 7 < 1 7 55 2 2 .2
    09/26/1997 10:20 25 24 8 < 1 4.1 46 2 10 .1
    02/02/1997 14:50 24 17 8 < 1 8.5 87 0 .09 78.5
    01/26/1997 14:20 22 18 7.9 < 1 7.2 75 3 0.01 .04 260
    01/19/1997 14:30 15 11 7.8 < 1 10.1 99 4 .04 132
    01/12/1997 14:20 3 10 7.9 < 1 10.45 91 1 0.01 .16 74
    01/05/1997 14:20 25 23 7.8 < 1 7.3 84 3 0.01 .04 235
    01/05/1997 14:20 25 23 7.8 < 1 7.3 84 3 0.01 .04 235
    12/29/1996 14:30 24 19 7.8 < 1 8.3 89 1 0.01 .13 25
    12/15/1996 14:30 2 8.5 0 1 112
    12/08/1996 14:25 20 18 8 < 4 9.15 95 2 0 .12 44
    12/01/1996 14:35 18 15 7.8 2 9 89 1 0.01 .08 202
    11/24/1996 14:30 8 23 8 2 8.1 91 0 0.01 .25 77
    11/17/1996 14:25 25 24 8.4 2 8.35 98 .19 77
    11/10/1996 14:43 24.5 22 8.1 < 1 8.2 90 3 0.01 .18 6.5
    11/03/1996 14:35 21 24 8.2 < 2 9.5 110 9 0 .2 170
    10/27/1996 14:30 7.6 2 6 .1
    10/20/1996 14:30 8.5 < 1 .42
    10/13/1996 14:45 27 27 8.4 < 1 8.4 105 9 .17
    10/06/1996 14:15 32.5 25.5 8 < 1 8.6 101 1 0.5 2.5
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