LCRA LogoColorado River Watch Network (CRWN) Water Quality Data

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)
12/23/2005 09:00 10 9.5 Normal 8.4 < 1 9.9 88.11 770 26 0 0.75
10/27/2005 08:35 14.5 16.5 Normal 8.2 1 7.6 78.28 820 15 0 0.67
09/28/2005 07:55 18 25 Normal 8.2 < 1 4.3 51.6 890 43 0 0.7
08/28/2005 07:15 20 27 Normal 7.8 < 1 4.2 52.08 790 12 0 0.65
07/19/2005 10:00 26 26.5 Normal 8.3 < 1 5.53 67.96 640 47 0 0.65
06/17/2005 06:55 23.5 26 Normal 7.8 < 1 5.1 62.22 15 0 0.69
05/30/2005 06:50 18.5 24.5 Normal 7.6 < 1 5.65 67.24 660 2 2 0.6
04/29/2005 07:20 19.5 22 Normal 8.1 < 1 6.95 79.23 700 34 0 0.8
03/24/2005 08:20 17.5 17 Normal 8.2 < 1 8.8 91.52 590 3 1.2 0.61
01/26/2005 07:40 5.5 10.5 Normal 7.4 < 1 9.8 89.18 650 53 0 0.87
12/30/2004 07:40 15 12 Normal 8 < 1 9.6 90.24 650 37 0 0.85
10/20/2004 08:00 23.5 24.5 Normal 7.8 < 1 6.1 72.59 590 7 0 0.68
09/18/2004 07:10 18.5 25 Normal 7.4 < 1 5.1 61.2 720 11 0 0.61
08/27/2004 07:00 23 27 Normal 7.9 < 1 4.85 60.14 660 5 0 0.62
07/27/2004 07:00 18 25 Normal 7.4 < 1 5.2 62.4 690 2 0.8
06/20/2004 07:05 20 26 Normal 8 < 1 4.3 52.46 720 10 0
05/25/2004 06:55 21 23.5 Normal 8.2 < 1 6.1 71.37 700 12 0
04/16/2004 07:30 16 18 High 8.2 < 1 7.8 82.68 660 6 0
03/31/2004 7.5 17.5 Normal 7.4 < 1 7.8 81.9 650 9 0
01/14/2004 07:40 15 13 Normal 7.4 < 1 9 86.4 670 49 0
11/26/2003 07:25 12 12.5 Normal 8.1 < 1 8.3 78.85 590 8 0
10/24/2003 07:40 10 19.5 Normal 8 < 1 6.05 65.95 740 17 0
09/10/2003 07:05 23 25.5 Normal 7.8 < 1 4.3 52.03 550 4 0
08/28/2003 07:20 22 25.5 Normal 7.8 3.9 47.19 3 0
07/28/2003 07:45 22.5 26 Normal 8.3 < 1 3.1 37.82 610 3 2.5
06/26/2003 07:20 22.9 27.5 Normal 8.3 < 1 4.3 53.75 740 10 0
05/20/2003 07:30 21.5 26 Low 8.3 < 1 4 48.8 820 58 0
04/24/2003 09:45 24.5 21 Normal 7.6 < 1 7.1 79.52 720 32 0
03/25/2003 07:55 18 18 Normal 8.2 < 1 7.1 75.26 700 3 1
02/19/2003 08:10 15 14.5 Normal 8.2 8.2 81.18 690 5 0
01/20/2003 08:15 10 11 Normal 8.3 < 1 8.9 81.88 710 8 0
12/29/2002 09:20 15 10.5 Normal 8.2 < 1 9.95 90.55 670 0 0.1
11/21/2002 08:05 5.5 12 Normal 8.4 < 1 8.8 82.72 810 17 0
10/05/2002 08:20 20.5 22.5 Normal 8.1 < 1 5.1 58.65 850 15 0
09/13/2002 08:05 18 24.5 Normal 8 < 1 4.8 57.12 770 5 0
08/20/2002 08:00 23.5 26.5 Normal 8 < 1 4.4 53.2 790 10 0
07/29/2002 07:50 24 27 Normal 8 < 1 4.9 59.8 780 12 0
06/17/2002 07:45 18 24.5 Low 8.2 < 1 3.7 43.3 830 1 0.15
05/24/2002 07:40 21 22 Low 8.2 < 1 5 56 800 8 0
04/17/2002 08:30 21.5 23 Normal 8.4 < 1 4.9 55.9 710 1 0.2
03/06/2002 09:45 13.5 11 Normal 8.1 < 1 9.5 85.5 690 15 0
02/18/2002 07:55 13.5 12 Normal 8.3 < 1 8.3 76.4 690 13 0
01/17/2002 08:10 14.5 11.5 Normal 8.3 < 1 8.8 80.1 690 13 0
12/22/2001 07:55 14.5 12 Normal 8.4 < 1 9 82.8 660 6 0
11/24/2001 12 15 Normal 8.4 < 1 7.7 75 770 7 0
10/17/2001 07:55 11.5 15.5 Normal 8.6 < 1 8.1 79.7 640 5 0
09/20/2001 07:45 22 25.5 Normal 8.2 < 1 3.2 38.1 15 0
08/15/2001 07:30 21 27 Low 7.8 < 1 3.5 42.1 920 1 0.07
07/13/2001 07:25 23 28 Low 8.3 < 1 3.6 44.6 790 9 0
06/18/2001 07:00 19.5 26 Normal 8.5 < 1 3.8 45.6 790 4 0
05/15/2001 07:35 18 23.5 Normal 8.4 < 1 5.5 63.3 7 0
04/18/2001 09:45 13 19 Normal 8.6 < 1 7.5 79.5 690 8 0
03/24/2001 09:10 18 18 Normal 8.4 < 1 9.1 94.6 630 6 0
02/24/2001 16:45 24 16 High 8.6 < 1 9.5 95 640 1 0.35
12/23/2000 15:10 14 10 Normal 8.3 < 1 11.6 101.6 680 10 0
11/17/2000 17:25 7 12 Normal 8.6 < 1 9.9 91.1 710 1 0.5
10/28/2000 08:40 20.5 21.5 Normal 8.2 < 1 5.6 62.2 640 4 0
09/30/2000 08:55 12.5 18.5 Low 8.2 < 1 6.1 64.1 6 0
08/19/2000 08:15 22 24.5 Low 7.6 < 1 3.2 36.9 18 0
07/14/2000 07:10 21.5 26.5 Low 8.1 < 1 3.5 42.4 26 0
06/25/2000 06:30 22 26 Low 7.6 < 1 4.4 52.8 7 0
05/19/2000 07:10 21 14.5 Normal 8 < 1 4.5 43.7 7 0
04/24/2000 06:40 11 21 Low 8 < 1 6.3 69.3 12 0
03/24/2000 09:15 22.5 19.5 Normal 8.2 < 1 8.95 97.56 1
02/06/2000 13:15 14.5 12 Low 7.8 < 1 10.8 99.4 5 0
01/30/2000 15:45 12 10 Low 7.8 1 12.6 110.9 5 0
12/30/1999 09:10 13.5 9.5 Low 8 < 1 9.4 81.3 10 0
11/15/1999 10:00 22 16.5 Low 7.6 < 1 7.2 72.7 16 0
10/08/1999 09:15 19.5 21 Low 7.5 < 1 5.8 63.3 90 0
09/13/1999 07:35 22.5 25.5 Low 8 < 1 4.2 49.4 65 0
08/28/1999 07:20 25 27 Low 7.6 < 1 3.2 38.4 49 0
07/18/1999 16:45 33 31.5 Normal 8.1 < 1 9.5 124.5 8 0
06/25/1999 16:30 31 31 Normal 8.1 < 1 10.1 131.3 5 4 99.9
05/28/1999 17:15 24 26 Normal 7.4 < 1 7.8 93 0 0.4 432.9
04/17/1999 12:20 17 17.5 Normal 8.2 < 1 10.9 111.8 3 0.6
03/23/1999 15:25 26.5 21 High 8 < 1 9.2 100.7 5 1.5 66.6
02/27/1999 10:30 49.95
02/19/1999 11:00 15 15 Normal 8 < 1 10.9 106.3 58 0
01/17/1999 15:45 27.5 14 Normal 8.4 < 1 11.8 112.8 25 0
12/29/1998 15:45 19.5 12 Normal 8.4 < 1 13.4 122.8 6 0.1
12/15/1998 11:00 13 10 Normal 8.4 < 1 12.1 106.5 6 2.75
11/28/1998 14:35 21.5 20 Normal 8.2 < 1 11 118.8 13 0
11/20/1998 11:05 12 16.5 High 7.8 < 1 9 90.9 5 0.5
10/27/1998 17:40 22.5 21 Normal 8.3 < 1 9.9 108.9 8 0
10/12/1998 19:10 22 22.5 Normal 8.3 < 1 8.9 101.1 6 2.75
09/27/1998 19:20 25 29.5 Low 8.1 < 1 6.9 87.6 11 0.4
09/13/1998 17:30 25.5 26 Low 8.4 < 1 9.3 111.6 1 0.85
08/29/1998 19:40 28 31 Low 8.3 < 1 7.7 99.5 1 4.27
08/07/1998 19:40 27 30 Low 8.4 < 1 10.4 132.5 1 0.75
07/24/1998 19:55 32 31 Low 8.1 < 1 7 90.3 10 0
07/17/1998 20:00 24.5 32 Low 8.2 < 1 6.9 90.4 3 0.5
06/26/1998 20:20 28 32 Low 8.5 < 1 5.4 71.3 15 0
06/13/1998 10:55 27 28 Low 8.6 < 1 6.6 81.8 2 2.5
05/23/1998 09:25 24 23 Low 8 < 1 5.4 61.6 45 0
05/09/1998 10:00 24 24.5 Normal 8.2 < 1 5.6 65.5 31 0
04/24/1998 12:00 24.5 21.5 Normal 8.3 < 1 8.6 95.5 16 0
04/13/1998 17:40 27.5 26 Normal 8.4 < 1 8.3 99 5 0
03/28/1998 11:15 24 21.5 Normal 8.4 < 1 9 99.9 1 0.2
02/27/1998 11:00 17 15 8.4 < 1 10.35 102 2 1.75
02/14/1998 15:35 11 12.5 8.3 < 1 10.3 96 0 1.7
01/28/1998 10:30 13.5 10.5 8.1 < 1 11.7 105 22 0
01/08/1998 12:20 14.5 11.5 8.4 < 1 9.7 89 2 1.4
12/30/1997 11:00 14 7.5 8 < 1 10.55 88 4 0
12/16/1997 14:00 18.5 11 8.3 < 1 11 100 14 0
11/21/1997 14:00 16 15.5 8.3 < 1 11 110 3 0.2
11/13/1997 11:45 11 12.5 8.3 < 1 10.8 101 1 1
10/30/1997 10:45 21 19.5 Normal 8.2 < 1 9.2 98.4 6 0
10/18/1997 11:20 21 18 Normal 8.3 < 1 9.2 95.7 6 0
09/22/1997 09:15 22 26 Normal 8.1 < 1 6.3 75.6 0 0.15
09/06/1997 10:25 25 27 Normal 8.3 < 1 7.2 87.8 3 0.5
08/23/1997 10:45 27.5 29 8.3 < 1 7.1 90 16 0
08/04/1997 10:30 27.5 29 8.2 < 1 6.2 77 4 0
07/19/1997 09:45 25 28 8.3 < 1 6 73 27 0
07/05/1997 10:15 25.5 28 8.3 < 1 6.9 87 13 0
06/18/1997 11:14 27.5 29 8.3 < 1 7.4 92 3 0.35
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