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)
02/23/2012 15:50 25 18 5 7.4 < 2 6.6 69.96 750 5 0 > 1.22 30
10/30/2011 14:10 23.5 6 20 0
09/30/2011 15:15 35.5 6 30 0
08/31/2011 12:10 32 1 30 0
07/19/2011 11:35 26 33 2 7.5 < 1 7.1 96.56 690 10 0 > 1.22
06/29/2011 19:36 29 20.5 2 7.6 < 1 6.95 77.14 680 8 0 > 1.22 10
05/31/2011 15:01 33.5 28 2 7.6 < 1 5.52 69.55 650 8 0 > 1.22 20
04/30/2011 18:20 28.5 24 2 7.7 < 1 6.8 80.24 620 104 0 0.632 300
03/31/2011 15:15 25 18 3 7.5 < 1 6.65 70.49 640 58 0 > 1.22 210
02/28/2011 14:40 20 16.5 3 7.7 < 1 8.25 84.98 700 28 0 > 1.22 1550
01/28/2011 13:10 20 13 5 7.6 < 1 8.23 79.01 700 12 0 > 1.22 30
12/30/2010 15:45 19 15 3 7.6 < 1 7.7 77 660 2 0.5 > 1.22 110
11/30/2010 15:30 11 14 3 7.6 < 1 9.4 92.12 670 29 0 > 1.22 160
10/30/2010 13:40 20 20 5 7.2 < 1 8.06 88.66 690 35 0 > 1.22 50
09/29/2010 11:35 26 22 1 7.4 < 1 6.7 76.38 710 5 0 > 1.22 140
08/31/2010 12:10 26 27 2 7.2 < 1 6.35 78.74 620 59 0 > 1.22 170
07/22/2010 18:30 28 22 3 7.7 5.45 62.13 650 20 0 110
06/30/2010 15:15 26 25 5 7.7 < 1 6.25 75 530 0 1.7 > 1.22 600
05/27/2010 11:00 26 25 3 7.4 < 1 5.23 62.7 650 13 0 > 1.22 30
04/19/2010 16:15 16.5 17 3 7.6 < 1 7.75 80.6 700 4 0.45 > 1.22 110
03/30/2010 15:40 21.5 19.5 5 7.4 < 1 8.7 94.83 710 10 0 > 1.22 50
02/28/2010 16:55 13 14.5 5 1 9.2 91.08 27 0 > 1.22
01/31/2010 16:45 13 11 5 7.6 < 1 9.05 83.26 700 3 3.2 > 1.22 160
12/31/2009 14:21 20 15 5 7.6 < 1 9.37 93.7 730 2 0.55 > 1.22 20
11/30/2009 15:40 8 16 5 7.5 < 1 8.9 90.78 740 8 0.2 > 1.22 90
10/28/2009 17:15 25.5 19.5 5 < 1 7 76.3 670 2 2.6 > 1.22 400
09/30/2009 10:00 21.5 22 5 7.4 < 1 6.2 70.68 540 1 1.55 0.413 1280
08/31/2009 12:50 31.5 25.5 2 7 < 1 6.95 84.1 630 31 0 > 1.22
07/31/2009 12:25 31.5 28 2 7.7 < 1 6.5 81.9 640 30 0.05 > 1.22
06/29/2009 09:20 29 20.5 3 7.4 < 1 5.1 56.61 540 18 0 > 1.22
05/28/2009 15:15 31.5 28.5 5 7.1 < 1 7.93 100.75 620 4 0.7 > 1.22 60
04/30/2009 09:30 22.5 22 5 7.4 < 1 5.6 63.84 640 3 1.2 > 1.22 150
03/31/2009 16:25 20.1 21.5 3 7.6 < 1 9.35 105.66 650 20 0.025 > 1.22 130
02/26/2009 10:15 19.7 20 5 7.6 < 1 8.05 88.55 630 17 0 > 1.22 200
01/24/2009 14:45 7 15 5 7.6 < 1 9.3 93 610 18 0 > 1.22 1240
12/31/2008 16:01 13.5 14 5 7.5 < 1 10 98 590 78 0 > 1.22 210
12/20/2008 15:10 21 18 5 7.4 < 1 8.1 85.86 560 25 0 > 1.22 240
11/19/2008 16:10 24 25 5 7 < 1 8.05 96.6 520 5 0 > 1.22 290
10/30/2008 13:45 31.5 26 2 7.3 < 1 8.57 104.51 570 43 0 > 1.22
08/25/2008 18:30 28 29 2 7.5 < 1 8.6 110.08 530 7 0.1 > 1.22
06/27/2008 12:50 31 28 2 7.6 < 1 7.2 90.72 540 44 0 > 1.22
05/30/2008 15:30 32.5 28 3 7.6 < 1 6.21 78.23 570 17 0 1.14 240
04/30/2008 10:30 25 18 5 7.1 < 1 6.6 69.96 420 3 1 0.331
02/29/2008 12:15 22 18 3 7.1 < 1 7.65 81.09 610 14 0 > 1.22 150
01/26/2008 16:30 13 9 3 7.8 < 1 11.8 103.84 620 5 0.1 > 1.22 40
12/31/2007 15:50 7 9 5 7.4 < 1 10.85 95.48 630 17 0 > 1.22
11/29/2007 10:50 12 9.9 5 7.2 < 1 7.35 66 610 5 0 > 1.22
10/30/2007 09:15 10.5 12 5 7.1 < 1 7.15 67.21 640 8 0 > 1.22
09/30/2007 19:15 22 21 7.3 < 1 7.4 82.88 680 19 0 > 1.22
08/28/2007 12:15 25 22 5 7.25 < 1 6.25 71.25 670 1 0.45 > 1.22 20
07/27/2007 12:15 23 20 5 7.5 < 1 6.23 68.48 520 1 1.1 > 0.324 50
06/30/2007 11:45 23 21.5 5 7.6 < 1 6.75 76.28 610 2 0.55 > 1.22
05/19/2007 18:22 19 18 5 7.7 < 1 6.8 72.08 625 4 2.1 > 1.22
04/29/2007 09:20 22 19.5 5 7.4 < 1 6.15 67.04 660 12 0 > 1.22
03/31/2007 20:30 11.5 18.5 4 7.6 < 1 7.3 78.11 480 1 0.65 > 1.22 10
02/28/2007 17:23 24 18 5 7.8 < 1 9.17 97.17 680 26 0 > 1.22
01/29/2007 10:15 5 7.7 < 1 10 750 5 0 > 1.22 20
12/31/2006 11:00 12 14 3 8 < 1 8.85 86.73 570 1 3.6 > 1.22 90
11/29/2006 10:45 24 23 3 7.7 < 1 5.95 69.02 630 25 0 > 1.22
11/01/2006 08:45 13 19.5 3 7.8 6.3 68.67 580 7 0
09/30/2006 15:30 28.5 29 3 8.4 < 1 7.95 101.76 520 12 0
08/24/2006 10:25 30.5 27 8 < 1 4.05 50.22 550 49 > 1.22
07/16/2006 08:35 25.5 25.5 Normal 8.1 < 1 7.7 93.11 500 10 0.7 > 1.2
06/30/2006 08:15 26 24 8.1 < 1 7.8 92.04 490 6 0 > 1.22
05/26/2006 11:15 25 23.5 8.2 < 1 7.2 84.24 550 18 0.7 < 1.2
04/30/2006 10:30 25 20 Normal 8 < 1 5.58 61.33 520 1 1 > 1.2 160
03/31/2006 10:25 20 19.75 High 8.3 < 1 7.47 81.76 400 3 1.9 0.68 60
02/27/2006 12:00 19 16 Low 8.7 8.55 87.21 560 3 0.4 10
01/20/2006 14:15 24.2 17 Low 8.3 < 1 8.19 85.15 570 71 0 > 1.22
12/31/2005 16:40 25 14.5 Low 8.4 < 1 8.8 87.12 570 61 0 > 1.22
11/26/2005 15:15 21 17.5 Low 8 < 1 8.71 91.48 560 0 0.6 > 1.22
10/30/2005 16:10 25 20 No Flow 8 < 1 7.7 84.7 620 18 0 > 1.22
09/30/2005 09:00 22.5 23 Low 7.7 < 1 4.9 56.84 540 51 0 > 1.22
08/11/2005 10:13 25 25 High 7.7 < 1 5.45 65.4 510 1 0.8 > 1.22 30
07/31/2005 14:20 31 28.5 High 7.6 < 1 5.5 69.85 520 3 1.1 > 1.22 10
06/19/2005 10:50 28 26 Normal 7.6 > 1 6.2 75.64 540 19 0 > 1.22 160
05/29/2005 10:20 21 22.5 Normal 7.7 < 1 6.18 71.01 0 1.1 > 1.2 60
04/23/2005 15:45 22 24 Normal < 1 8.28 97.65 650 10 0.7 > 1.22 90
04/09/2005 10:30 21.5 19 Normal 7.6 < 1 7.05 76.14 640 6 0.3 1 110
03/31/2005 17:00
03/31/2005 17:00 26 21.5 Flood 7.6 < 1 7.48 84.47 640 5 0.8 > 1.2
02/27/2005 11:30 Normal 7.6 < 1 8.15 640 1 0.9 > 1.2
01/30/2005 09:25 7 12.5 High 7.8 < 1 8.2 77.9 580 2 1.9 > 1.22 20
12/31/2004 11:10 22.5 17 High 7.8 < 1 7.6 79.04 640 31 0 > 1.2
11/19/2004 17:00 19 19.5 Normal 7.5 < 1 7.1 77.39 610 2 5.35
10/24/2004 11:00 26 23 Normal 7.6 < 1 5.85 67.86 390 2 4.6 0.31 10
09/12/2004 11:40 30.25 25.5 Normal 7.8 < 1 8.11 98.16 560 44 0.1
08/22/2004 11:40 28.25 24.5 Normal 7.7 < 1 6.1 72.59 580 53 0.7
07/18/2004 13:40 23 25 High 7.6 < 1 6.35 76.2 640 18 0
06/19/2004 11:05 28.5 25 Normal 7.6 < 1 4.95 59.4 600 6 0 40
05/23/2004 26.5 22 Normal 7.6 < 1 6.65 75.81 650 10 0
04/30/2004 16:10 26 22.5 Normal 7.6 < 1 7.3 83.95 570 3 0.5
03/29/2004 14:25 25 20.5 Low 7.8 < 1 11.03 122.38 610 17 0
02/29/2004 13:30 19 16 No Flow 7.8 10.73 109.4 610 0 0.5
01/31/2004 15:10 15.25 12.25 Low 8 < 1 9.85 93.08 570 9 0 110
12/14/2003 13:45 18 12 No Flow 8.2 < 1 9.43 88.6 77 0.3
11/30/2003 12:00 20 13 No Flow 8.2 < 1 9.2 88.32 410 63 0
10/24/2003 10:00 24 20 Low 7.6 < 1 5.1 56.1 480 0
09/28/2003 12:30 27.5 25.5 No Flow 7.8 < 1 7.55 91.36 480 11 0
08/24/2003 09:55 26.5 25 No Flow 7.7 < 1 4.81 57.75 520 71 0
07/27/2003 11:10 27.5 28 No Flow 7.9 < 1 5.81 73.24 520 11 0.4
06/30/2003 15:00 32.5 32 No Flow 7.8 < 1 6.7 89.78 540 21 0
05/25/2003 12:10 28 28 Normal 7.6 < 1 5.8 73.08 70 0 10
04/21/2003 10:40 23 20.5 Normal 7.6 1 7.6 84.36 650 42 0 100
03/16/2003 13:55 26.5 22 Normal 7.6 < 1 6.8 77.52 680 0.015
01/25/2003 10:20 4 10.5 High 8.2 < 1 9.8 89.18 620
12/31/2002 15:50 18 24 High 8 < 1 9.3 109.74 590 0.4
11/20/2002 09:30 15.5 15 High 7.6 < 1 8.8 88 630 16 0
10/26/2002 13:30 24.5 23 High 7.6 < 1 7.15 82.94 630 0.1
09/29/2002 12:30 28 25 Normal 8 . 1 6.65 79.8 560 10 0
08/22/2002 09:45 27 26 Normal 7.6 4.55 55.51 660 0
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