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)
10/07/2019 17:40 27 25.2 1 7 1 7.1 85.48 510 30 0 > 1.2
08/31/2019 11:40 35 28.2 2 7 1 5.5 69.52 520 30 0 1.1
07/27/2019 12:45 34 30.1 1 7 5.3 69.01 580 17 0 1.2
06/30/2019 17:54 27 26.2 2 7 1 6.65 81.4 520 0 1.5 87.8
04/28/2019 16:30 25.3 25.6 2 7 < 1 6.4 77.57 600 4 0 > 1.2
03/31/2019 12:01 11 14.8 2 7 < 1 7.6 75.7 580 17 0 > 1.2
02/25/2019 14:15 18 15.9 3 7 1 8.5 86.53 610 3 0.75 > 1.2
01/27/2019 12:30 15 14.5 3 8 < 1 7.8 77.22 590 1 0.75 1.2
12/31/2018 11:21 14 11.6 3 7 1 8.7 81.08 570 1 3 > 1.2
11/14/2018 10:55 7 11.8 3 7.3 < 1 8.9 83.3 620 3 > 1.2
10/09/2018 11:20 25 24.5 5 7 < 1 6.3 74.97 580 1 1.1
09/07/2018 15:00 32 30 2 < 1 4.5 58.5 400 1 1.46 > 1.22
08/18/2018 11:20 32 30 2 7.5 < 1 6 78 470 8 0.9 > 1.22
07/11/2018 09:00 25.5 27.5 3 7 < 1 4.6 57.5 530 2 0.4 > 1.22
06/04/2018 12:25 23 28 2 7 < 1 5.8 73.08 580 1 0.5 > 1.2
05/06/2018 16:10 29 25 3 7 < 1 6.1 73.2 500 2 4 1.06
04/17/2018 12:00 25 23 3 7.5 8.3 96.28 520 14 0 > 1.22
03/07/2018 12:30 16 18 3 7 < 1 9.3 98.58 690 10 0 > 1.22
02/08/2018 11:15 8 11 3 7 < 1 9.5 87.4 620 24 0 > 1.22
01/08/2018 14:45 16.5 7 3 7 < 1 9.4 78.96 610 20 0 > 1.22
12/04/2017 14:55 25 19 3 7 < 1 7.3 78.84 600 26 0 > 1.22
11/06/2017 16:55 25 22.5 2 7 < 1 6.9 79.35 590 14 0 > 1.22
10/13/2017 11:55 27 23 1 7 < 1 7.4 85.84 620 11 0 > 1.22
09/06/2017 16:10 28 26 3 7.5 < 1 7.4 90.28 620 10 0 > 1.22
08/09/2017 11:30 28.5 27.5 3 7.5 < 1 5.2 65 480 2 2.75 0.95
07/07/2017 10:45 31 29 2 7 < 1 6.1 78.08 590 10 0 > 1.22
06/09/2017 11:45 29 26 3 7 < 1 5.4 65.88 590 4 0 > 1.22
05/11/2017 10:20 25 22 3 7 < 1 5.5 62.7 620 11 0 > 1.22
04/13/2017 12:05 25.5 22 5 8 < 1 6.6 75.24 520 3 3 1.1
03/24/2017 14:24 26 22.5 3 8 < 1 6.1 70.15 630 13 0 > 1.22
02/09/2017 15:10 19 16.5 3 8 < 1 8.2 84.46 640 22 0 > 1.22
01/09/2017 14:35 19 12 3 7.5 < 1 9 84.6 650 7 0 > 1.22
12/14/2016 12:15 12 15 3 7.5 < 1 8 80 640 3 0.12 > 1.22
11/11/2016 16:30 20 19 5 7.5 < 1 7 75.6 500 3 1.11 1.05
10/08/2016 15:00 25 24 3 7 < 1 6 70.8 620 12 0 > 1.22
09/12/2016 12:05 30 26 3 7 < 1 6.3 76.86 600 6 0 > 1.22
08/05/2016 09:20 27 28 3 7.5 < 1 5.4 68.04 610 30 0 > 1.22
07/17/2016 13:20 34.5 28 3 7.5 < 1 4.5 56.7 620 30 0 > 1.22
05/22/2016 13:00 26.5 23 5 7 < 1 7 81.2 580 3 0 > 1.22
04/16/2016 13:20 24 20 5 7 < 1 6.8 74.8 600 1 0.2 > 1.22
03/15/2016 10:00 24 20 5 7.5 < 1 7.1 78.1 570 3 0 > 1.22
02/11/2016 10:55 24 14.5 3 7.5 < 1 8.3 82.17 650 0.22 0 > 1.22
12/08/2015 13:20 17.5 15.6 5 7 < 1 8.1 81.97 520 0 1.25
02/04/2005 15:00 12 12 Normal 7.6 11.4 107.16 550 4 0 1.1 1.2
06/30/2004 09:30 24 23 Flood 7.3 7.7 89.32 350 0 6
05/31/2004 10:50 32 26 Normal 7.1 6 73.2 590 1 0.1 > 1
03/31/2004 09:15 27 18.5 Normal 7.7 8.6 92.02 610 4 0 1
01/26/2004 01:15 16 12.5 Normal 7.3 6.7 63.65 430 1 0.5 .5
09/30/2003 09:00 21 21 Low 7.9 6.5 72.8 550 4 0 > .75
07/31/2003 09:30 28.5 28 Normal 7.5 6.85 86.31 570 4 0 .8
06/29/2003 09:30 30.5 26.5 Low 7.2 6.3 77.49 580 14 0 .88
05/31/2003 09:45 32 24.5 Normal 7.4 7.05 83.9 570 5 0 .9
03/31/2003 10:20 13 14 Normal 7.6 610 6 0 > 1
12/22/2002 11:59 18 11.5 High 7.8 9.85 91.61 620 10 0 1
10/18/2002 10:00 19 18 Low 7.4 7.5 79.5 590 5 0 .9
09/25/2002 10:10 22.5 22 Normal 7.4 7.05 80.37 600 6 0
07/14/2002 09:45 27.5 23.5 High 7.8 7.3 85.05 570 1 0.9 > 1
04/18/2002 16:30 29 24 7.7 7.4 85.3 630 10 .95
03/31/2002 09:15 16 18.5 High 7.7 7.5 78.8 570 1 1
02/17/2002 09:15 18 12 Normal 8 9.6 88.3 610 12 0 .95
11/27/2001 10:10 11 17 Normal 7.8 8.2 83.6 590 9 0 160
08/26/2001 09:00 26.5 28 7.8 4.9 60.1 8 0 .6
07/15/2001 10:30 34 29 Low 7.4 4.7 58.6 580 0 < .91
06/17/2001 09:00 29.5 26 Low 7.4 5.8 69 590 0 < .91
04/18/2001 09:30 13.5 16 Normal 8 8 80 580 1 0.6 3.5
03/19/2001 09:30 9.5 11.5 Normal 7.8 9.8 89.2 580 1 0.5
02/19/2001 10:00 16 12.5 Normal 8 9.7 90.2 620 3 0.9 1.1
12/01/2000 17:00 12 15.5 Normal 7.8 8.8 86.6 610 0 0.01
08/21/2000 10:00 31.5 27.5 7.8 < 1 5.9 72 29 0
07/17/2000 10:00 32 29 7.4 4.2 52.9 29 0 .5
05/21/2000 09:15 22.5 23.5 7.3 6 68.4 0 .6
04/18/2000 09:00 21.5 22 7.9 7.1 79 3 0.12
03/27/2000 09:00 23.5 21 Low 7.8 7 77 1 0.4 .4
03/13/2000 09:20 14 15.5 7.7 7 69.3 5 0 .6
02/12/2000 09:10 10.5 12.5 8.1 < 1 9.9 92.1 0 0 < .18
01/16/2000 09:00 18 13 8 9.2 86.5 8 0 < .46
11/28/1999 08:30 17 13.5 8 < 1 7.2 67.9 5 0 < .61
10/24/1999 09:45 14.5 14.5 8.2 < 1 6.5 63.1 6 0 2
09/20/1999 08:05 20 28 Low 7.8 < 1 6.9 85.6 61 0
08/22/1999 09:00 30 28 Low 7.4 < 1 5.3 65.7 32 0
08/01/1999 09:00 27.5 27 Normal 7.4 < 1 5.6 67.7 11 0
06/27/1999 09:20 27 26.5 Normal 7.5 < 1 5.2 62.9 2 0.5
06/06/1999 09:00 25 26 Low 7.6 < 1 5.5 66 6 0
05/23/1999 09:00 26 25 Low < 1 6.6 77.9 5 0
04/22/1999 09:00 22 21 Low 7.6 < 1 7.3 80.3
03/14/1999 09:00 6.5 14.5 Normal 7.6 < 1 8.7 83.9 1 0.3
02/14/1999 09:00 16.5 13 Low 7.8 < 1 9.4 88.8 5 0
01/24/1999 09:00 21 12.5 Normal 8 < 1 9.3 86 0
01/02/1999 09:00 6 8.5 Normal 8 < 1 8.9 75.7
11/22/1998 09:00 11.5 15.5 Normal 8 < 1 9.4 93.1 6 0
10/04/1998 09:30 27.5 26 Normal 7.2 < 1 6.4 76.8 10 0
08/30/1998 09:00 24.5 27.5 Low 7.2 < 1 5.8 70.7 8 0
08/16/1998 09:00 27.5 28 Low 7.7 < 1 5.2 63.9 2 0.1
08/02/1998 08:40 27 28.5 Low 7.8 < 1 5.6 70 6 0
07/04/1998 09:10 26 24 High 7.8 < 1 6.8 78.9 0 4
06/06/1998 09:00 24.5 25.5 Normal 7.3 6 71.4 1 0.4
05/24/1998 08:10 24.5 24 Normal 7.5 < 1 7.5 86.4 0
05/08/1998 17:30 29 23.5 Normal < 1 6.7 76.5 4 0
04/26/1998 09:35 20.5 19.5 Normal 7.4 < 1 7.5 79.7 7 0
04/03/1998 17:10 22.5 20 Normal 8 < 1 8.4 91.3 3 0
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