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)
02/27/2022 15:00 14 12 2 7.5 < 1 9.05 85.07 490 3 0.09 > 1.2 33.3
12/22/2021 14:30 21 18 3 7 < 1 8.5 90.1 450 6 0 > 1.2 16.65
09/25/2021 15:00 30 26 2 8 < 1 8.5 103.7 390 29 0 > 1.2 33.3
08/09/2021 15:00 32 30 3 8 < 1 6.8 88.4 390 7 0
04/11/2021 14:30 30 24 2 7.5 < 1 9.4 110.92 470 7 0 > 1.2 33.3
10/26/2020 14:00 10.5 17 2 7.2 < 1 7.6 79.04 430 1 0.11 > 1.2
09/25/2020 13:00 24 19 3 7.5 < 1 8.1 87.48 370 4 0 > 1.2
06/28/2020 17:00 29 24 2 7.2 < 1 6.9 81.42 350 5 0 49.95
05/25/2020 14:00 34 31 2 7.5 < 1 8.3 360 5 0.3 66.65
05/01/2020 13:00 21 17 2 7.5 < 1 6.95 72.28 390 1 1.14 33.3
03/23/2020 14:00 21 19 2 7.5 < 1 7.8 84.24 410 3 0.2 66.6
01/25/2020 14:30 17 20 2 7 < 1 8.55 94.05 420 5 0 66.6
08/20/2019 16:30 35 32 2 7.2 < 1 7 93.8 360 6 0 > 1.2 33.3
05/20/2019 13:00 31 24 5 7 < 1 6.9 81.42 480 10 0.1 > 1.24 33.3
12/23/2018 17:20 14 10 5 7 < 1 9 81 500 3 1.97 > 1.24 33.3
11/09/2018 16:45 11 16 5 7 7.5 76.5 510 1 0.46 0.22 1332
07/11/2018 14:00 35 28 2 7 < 1 6.5 81.9 360 2 1 > 1.2
04/18/2018 15:30 29 21 2 7 < 1 7.9 88.48 430 30 0 > 1.2 83.3
02/27/2018 14:30 25 21 2 7.5 < 1 7.8 87.36 450 6 0.06 > 1.2 99.9
01/02/2018 15:00 17 14 2 7.5 < 1 9.7 95.06 21 0 > 1.2
12/02/2017 13:00 22 19 2 7 < 1 8.9 96.12 450 24 0 > 1.2 16.65
09/30/2017 15:00 28 28 2 7.5 < 1 7.95 100.17 450 1 1.36 > 1.2
04/30/2017 15:40 22 21 3 8 < 1 6.9 77.28 490 3 0.8 > 1.2 16.65
11/21/2016 12:00 17 18 5 7 9.5 100.7 11 0 > 1.24 16.65
09/21/2016 17:30 26 30 3 7.5 < 1 6.1 79.3 450 4 0.5 > 1.22 33.3
05/28/2016 15:00 32 25 5 7 < 1 4.15 49.8 460 2 0.49 > 1.2 183.15
01/31/2016 15:15 25 17 5 7 < 1 7.9 82.16 520 4 0 > 1.2
11/27/2015 13:30 23.5 19.5 5 7.5 < 1 7.5 81.75 490 0 0.52 > 1.22 66.6
07/18/2015 12:20 28 30 5 7.5 < 1 6.95 90.35 460 21 0 > 1.2 16.65
04/30/2015 13:30 25 21 3 8 < 1 5.8 64.96 450 3 0.1 > 1.2 49.95
01/21/2015 13:20 24 19 3 7.5 < 1 9.4 101.52 400 11 0 > 1.2 16.65
11/08/2014 16:30 22 20 2 7.5 < 1 9.2 101.2 440 3 0.9 > 1.22
08/30/2014 15:15 35 34 2 8 1 9.5 131.1 380 30 0 > 1.22 16.65
07/18/2014 09:10 24 26 3 7.5 1 7.1 86.62 430 1 1.89 > 1.22 183.15
06/07/2014 15:15 34 31 5 7 < 1 7.2 95.04 450 11 0 > 1.22 1.67
03/21/2014 14:50 21 20 3 7.5 < 1 8.3 91.3 490 13 0 > 1.22 33.3
02/01/2014 17:40 19 15 3 8 < 1 10 100 540 7 0 > 1.22 16.65
12/01/2013 15:40 19.5 15 5 8.5 < 1 10 100 520 6 0 > 1.22 33
10/20/2013 14:30 17 19.5 5 8 < 1 8.5 92.65 340 7 0 0.62 166.5
09/30/2013 11:10 25 24 1 7.5 < 1 8.8 103.84 450 0 1.68 > 1.22 740.9
08/17/2013 14:05 31 36 2 8 < 1 8.9 126.38 380 1 1.25 > 1.2
07/15/2013 13:10 26 25 2 7 < 1 6.7 80.4 430 0 0.85 > 1.2 83.25
05/31/2013 19:20 27 30.5 3 8 < 1 8.7 113.97 400 4 0 > 1.22 16.65
03/30/2013 16:20 26.5 26 2 8 < 1 10 122 450 10 0 > 1.22
02/24/2013 16:25 20.5 19.5 2 8 < 1 9.95 108.45 460 14 0 > 1.22
01/27/2013 17:15 21 20.5 2 8 < 1 9.35 103.78 460 19 0 > 1.2 33.3
12/15/2012 14:40 25.5 19 2 8 < 1 9.3 100.44 490 30 0 > 1.22 16.65
11/02/2012 15:30 30 25 2 7.5 < 1 9 108 430 19 0 > 1.22
08/26/2012 13:45 34 33 3 8 < 1 9.05 123.08 420 8 0 > 1.22 49.95
07/31/2012 15:40 41 35 3 8 < 1 8.95 125.3 390 16 0 > 1.22 16.65
04/26/2012 15:30 33 28 3 7.5 < 1 7.8 98.28 450 28 0 > 1.22
02/14/2012 14:10 22.5 19 3 7.5 < 1 10 108 550 4 0 > 1.22
12/31/2011 17:00 22 16 2 7.5 1 11.2 114.24 690 5 0 > 1.22
10/30/2011 14:40 26 23 2 7.5 < 1 11.2 129.92 700 21 0 > 1.22 133.5
09/26/2011 15:35 36 6 11
07/02/2011 13:15 35.5 34 2 8 < 1 7.3 100.74 400 10 0 > 1.22
05/21/2011 14:50 29 31.5 2 7.5 < 1 9.1 121.03 380 1 0.26 > 1.22 116.55
04/23/2011 17:50 28 30 2 8 < 1 9.25 120.25 340 12 0 > 1.22
03/05/2011 15:15 20 19 3 7 < 1 9.9 106.92 400 9 0 > 1.22 449.55
01/15/2011 14:15 12 9 3 7.5 < 1 10.05 88.44 430 0 0.47 > 1.22 416.25
12/03/2010 11:00 22 14 3 8 < 1 9.2 90.16 430 30 0 > 1.22 49.95
11/20/2010 12:30 25 15.5 3 7 < 1 8.15 82.32 440 8 0 > 1.22
10/09/2010 13:00 24.5 24 3 7.5 < 1 8.95 105.61 470 26 0 > 1.22 66.6
09/04/2010 13:00 29 28.5 2 7.5 < 1 7.5 95.25 410 1 1.74 > 1.22
08/08/2010 12:20 30 31.5 2 8 < 1 8 106.4 390 10 0 > 1.22 49.95
06/25/2010 11:10 29 30 2 8 < 1 7.7 100.1 460 16 0 > 1.22
03/14/2010 16:00 25 19 3 8 < 1 9.15 98.82 520 5 0 > 1.22
02/14/2010 13:40 22 14 5 8 < 1 10 560 3 0.37 > 1.22
12/23/2009 16:30 20 15 3 8 1 10 100 580 6 0 > 1.22 16.65
11/13/2009 10:10 19 17.5 3 7.9 < 1 9.1 95.55 530 5 0 > 1.22 66.6
10/25/2009 12:30 24.5 19 3 7 1 9.25 99.9 540 4 0 0.6 116.55
09/08/2009 10:30 27 6 11 0
08/07/2009 11:30 31 6 16 0
07/18/2009 14:15 35 33 1 7.5 7.9 107.44 580 19 0
06/11/2009 10:45 26 23 1 7.5 < 1 5.5 63.8 1240 13 0 0.75
05/31/2009 10:00 25 6 7 0
04/05/2009 10:15 14 14 2 7 < 1 9.2 90.16 1120 4 0
02/14/2009 13:30 11 6 4 0
01/10/2009 12:00 8 6 4 0
12/07/2008 15:00 19 6 31 0
11/06/2008 11:15 19 6 1 0.16
10/11/2008 15:30 29 6 41 0
08/19/2008 13:05 27 30 2 8 < 1 7.8 101.4 380 2.5 3 > 1.22
07/12/2008 12:30 30 33 2 8 < 1 8.6 116.96 370 6 0 > 1.2
04/22/2008 10:45 27 24 3 7.5 < 1 7.9 93.22 410 4 0 > 1.22
10/12/2007 12:00 20 22 3 7 < 1 7.2 82.08 450 85 0 > 1.23
09/07/2007 15:45 25 27 3 7 < 1 6.2 76.88 450 48 0.78 > 1.23
07/01/2007 13:50 28 27 3 7 < 1 5.6 460 27 0.19 > 1.23
06/08/2007 13:20 26 25 5 8 < 1 5.1 61.2 500 5 0 0.35
04/16/2007 15:30 18 18 4 7 < 1 8.1 510 2 0.2 > 1.2
04/02/2007 14:00 4
03/02/2007 13:20 22 20 1 7.5 < 1 8.25 90.75 850 37 0 > 1.21
01/22/2007 16:30 7 9 2 7.5 < 1 12.1 106.48 830 2 0.28
10/11/2006 14:00 6 30
07/22/2006 15:00 Dry
06/27/2006 11:15 31 26 Low 7.2 < 1 2.2 26.84 410 10 0
05/22/2006 15:10 33 35 Low 6.5 < 1 1.98 27.65 440 15 0
04/20/2006 11:00 26 25 Low 7 < 1 6 72 430 2 1.6
03/18/2006 16:00 20 17 Low 7 < 1 7.8 81.12 430 30 0
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