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)
01/28/2025 14:45 12.5 10 5 9.75 480 21 0 1.5
01/28/2025 14:45 12.5 10 5 9.75 480 21 0 1.5
01/18/2025 15:10 14.5 10 3 6.5 9.1 460 11 0 3.1
04/17/2024 11:05 25 24 3 66 4.35 51.33 450 7 0 1.3
02/03/2024 14:00 23.5 16 3 6.6 7 71.4 420 1 1 .8
10/13/2023 14:55 30 26 3 6.4 3.3 40.26 460 8 0 .9
08/25/2023 09:15 31 29 2 6.6 2.3 29.44 430 30 0 1.3
05/27/2023 11:00 28 25 3 6.7 5.3 63.6 340 3 0.85 1.1
03/09/2023 12:20 26 21.5 3 7.2 5.6 63.28 490 6 0 1.8
01/07/2023 11:15 22.5 15 3 6.9 9.9 99 460 9 0 1
07/25/2022 09:30 29 29 3 6.4 2.25 28.8 390 27 0 1.75
06/18/2022 09:30 33 30 3 6.6 4 52 390 25 0 1.8
05/15/2022 11:00 29 28 3 6.6 4.1 51.66 380 10 0 1.5
04/15/2022 10:15 20.5 21 3 6.7 5.55 62.16 350 22 0 1.4
03/17/2022 11:00 22 15.5 3 6.9 8.3 83.83 420 9 0 2.6
02/10/2022 13:30 21.5 10.5 3 7.1 10 91 370 8 0
01/14/2022 14:05 24.5 13.5 3 6.9 9.2 89.24 430 13 0 2.3
12/04/2021 15:30 24.5 18.5 3 6.9 7.4 79.18 420 7 0 1.7
03/21/2021 16:25 22 19 3 6.4 6.9 74.52 460 30 0 2.3
01/30/2021 15:20 24 14 3 6.5 8 78.4 460 10 0 2.6
06/13/2020 09:30 24 26 3 6.4 3 36.6 360 16 0 1.85
04/11/2020 13:15 25 22 3 6.7 6.6 75.24 400 2 0.15 1.3
03/11/2020 14:35 26 19.5 3 6.6 6.1 66.49 390 3 0.3 2.1
02/04/2020 14:00 25 17.5 3 6.5 6.4 67.2 390 13 0 2
01/10/2020 16:25 24 16 3 7.4 9.9 100.98 360 30 0
03/21/2019 12:05 23 17 3 6.9 6.8 70.72 340 5 0 2.1
02/03/2019 15:15 23 15 3 6.6 8.45 84.5 280 7 0 2.5
01/08/2019 17:20 19 17 5 6.9 6.7 69.68 200 6 0 .5
08/31/2018 11:15 31 29 2 6 3.4 43.52 320 30 0 1.9
06/26/2018 14:15 33 32 3 7.1 5.7 76.38 240 6 0 2.1
03/17/2018 13:10 28 20 3 6.6 5.9 64.9 330 20 0 2.1
12/23/2017 15:55 12.5 13 3 7.1 9 86.4 310 1 0.1 2.1
09/21/2017 10:15 29.5 28.5 3 3.7 46.99 250 24 0 1.25
07/16/2017 15:00 28 33 3 7.1 4 54.4 310 1 0.1 1.3
05/02/2017 16:20 27.5 25 3 7 5.75 69 260 3 0 1.25
03/29/2017 14:25 22 25 5 7.1 4.5 54 290 0 2.1 .75
02/22/2017 13:10 27.5 19.5 3 7.4 7.8 85.02 250 2 1.8
01/24/2017 16:15 26.5 16 3 7.2 6.85 69.87 240 6 0 < .75
12/17/2016 13:45 24 15 3 7.2 6.5 65 300 11 0 > 1
11/29/2016 15:10 24 17 3 7 6.2 64.48 310 15 0 1.3
10/24/2016 17:00 28 24 3 7.1 3.3 38.94 290 1 0.1
09/30/2016 10:30 22 23 3 7 3.4 39.44 270 5 0
07/09/2016 18:00 30 33 3 7.4 4.2 57.12 280 11 0 1.25
06/14/2016 14:20 33 32 3 7.1 5.7 76.38 260 2 0.7 .75
04/05/2016 11:15 23 19 3 6.9 4.3 46.44 240 10 0 1.3
03/15/2016 14:15 29 25 3 7 5.2 62.4 180 5 0 .6
01/21/2016 11:30 18 11.5 3 6.5 5.6 52.08 240 30 0 .8
09/06/2015 18:15 26 30 3 7.4 7.6 98.8 310 10 0 1
04/26/2015 15:15 28 27.5 3 7 6 75 300 1 0.7
01/29/2015 14:15 22 15 3 7 8.4 84 280 6 0
12/07/2014 16:45 11.5 15 2 7 7.1 71 240 14 0
09/27/2014 11:50 26 25 2 7.2 3.1 37.2 290 8 0 2.1
08/09/2014 10:10 29.5 29 2 6.6 3.05 39.04 290 18 0 1.6
06/15/2014 15:30 31.5 31 3 7.2 7.15 94.38 280 5 0 1.1
03/15/2014 11:30 15 18 3 7.2 7.8 82.68 310 6 0 2.1
01/19/2014 15:00 5 10 3 9.9 89.1 30 0
12/23/2013 14:15 9 10 3 6.9 9.57 86.13 270 12 0 2.75
11/27/2013 15:25 21 17 3 7.2 8.7 90.48 290 1 1.2 2
10/31/2013 14:00 22 23 3 7.2 5.7 66.12 310 30 0 2.1
09/10/2013 16:45 36.5 29 2 7 5.5 70.4 300 30 0
07/28/2013 13:45 33.5 31 2 7.1 6.35 83.82 300 1 1.3
06/29/2013 10:30 34.5 31 2 6.9 4.3 56.76 300 30 0 1.7
01/29/2013 16:50 27.5 20 3 7.2 8 88 310 20 0 > 2
08/09/2012 15:40 36 33 3 7.7 < 1 7.8 106.08 280 30 0
05/10/2012 09:25 23 24 3 7.1 < 1 6.2 73.16 280 1 0.75 1.6
03/12/2012 17:40 24 20 3 7 5.25 57.75 270 1 1.8
01/17/2012 11:00 22.5 15 1 6.8 < 1 8.3 83 360 9 0 1.8
11/25/2011 17:10 22.5 18 1 7 7.6 80.56 330 4 0
10/12/2011 09:15 22 23 1 7.3 5.65 65.54 360 3 0 .9
09/30/2011 17:30 29 25 1 8.2 < 1 7.8 93.6 360 10 0
07/10/2011 17:45 29 32 1 8.6 < 1 8.7 116.58 400 18 0 > 2.3
05/01/2011 16:30 31 27 1 7.8 < 1 8.25 102.3 290 27 0
02/26/2011 15:30 22.5 17 1 6.9 < 1 8.1 84.24 289 48 0
01/30/2011 15:45 26 16 1 6.9 < 1 8.8 89.76 280 10 0 > 2.75
01/05/2011 15:05 22 12 1 7.1 8.2 77.08 260 20 0.1 2.1
10/12/2010 10:25 23 21 3 6.6 4.2 47.04 260 17 0
09/18/2010 11:00 27 28 1 6.6 < 1 4.05 51.03 250 5 0 1.5
07/31/2010 09:00 27 28 1 6.6 5.4 68.04 240 4 0
06/28/2010 09:30 30 29 1 6.8 < 1 2.9 37.12 220 14 0
04/03/2010 16:15 28 24 1 7.4 < 1 7.2 84.96 290 10 0 1.75
01/17/2010 16:20 14.5 10 7.2 < 1 10.2 91.8 330 1 2 1.8
12/22/2009 14:35 20 11.5 7.1 < 1 9.25 86.03 330 12 0 2.25
11/28/2009 15:45 20.5 15 7 < 1 7.5 310 7 0
11/04/2009 09:45 18 16 6.6 < 1 6.15 310 7 0
10/06/2009 16:15 31.5 29 3 7.1 < 1 5.7 72.96 310 3 1.25 1.7
08/19/2009 09:00 27 30 2 6.6 < 1 4 52 300 7 0 1.75
02/19/2009 16:20 19.5 16 3 7.1 8 81.6 270 5 0 2
01/14/2009 15:00 27 11 3 6.9 < 1 9.45 86.94 270 11 0 1.6
12/19/2008 14:15 23 17 3 7.2 8.35 86.84 270 5 0
10/20/2008 17:45 26 23 3 6.9 < 1 5.6 64.96 13 0 1.9
09/02/2008 13:25 34.5 29.5 3 8.68 < 1 5.55 71.6 280 14 0 1.6
07/31/2008 17:55 36.5 33 3 8.6 9.6 130.56 290 24 0 > 1.7
06/22/2008 18:10 31 30.5 3 8.7 < 1 8.5 111.35 300 39 0 > 1.7
05/16/2008 11:55 23.5 26.5 3 7.1 8.8 108.24 300 2 0.5
02/10/2008 15:20 19.5 15 3 7.2 7.8 78 0 1.2
01/22/2008 14:00 7 10 3 6.9 < 1 8.9 80.1 240 8 0
02/06/2007 14:43 21 13.5 3 6.9 < 1 9.45 91.67 250 13 0 .7
12/17/2006 16:06 24 24 3 7.4 < 1 9.4 110.92 240 0 0 1.75
11/05/2006 16:00 18.5 16.5 3 6.9 7.2 74.16 240 13 0 1
10/09/2006 17:00 30.5 27 3 7.1 < 1 8.6 106.64 300 30 0 1.6
05/17/2006 17:20 28 27 Normal 8 < 1 8.6 106.64 280 0 1.8
03/13/2006 09:30 17 20 Normal 6.5 < 1 5.5 60.5 260 14 2
10/09/2005 15:30 28 25 Normal 6.6 4 48 220 0 6.6
07/30/2005 17:00 33.5 31.5 Low 7.5 7.3 97.09 200 6 0 1.5
06/26/2005 17:00 34.5 33.5 Low 7.7 < 1 7.45 102.07 200 26 0 1.6
05/01/2005 16:30 22 25 Normal 7.4 < 1 7.5 90 210 1 0.6 1.25
03/12/2005 14:10 26 17.5 High 7.3 < 1 8 84 210 7 0
01/21/2005 14:20 22 14 Normal 7.6 11.25 110.25 220 0 1.3
09/05/2004 14:00 33 30 Normal 6.9 < 1 5.8 75.4 260 0 1.5
07/09/2004 18:15 26 32 Normal 7.2 < 1 6.15 82.41 250 14 0 > 1.5
06/12/2004 15:15 32 30 Normal 7.4 < 1 6.6 85.8 240 3 3 1.1
04/17/2004 16:45 23.5 24 Normal 7 < 1 7.4 87.32 270 6 0 1.6
03/25/2004 09:30 21 18.5 Normal 6.9 5.45 58.32 260 1 3 1.75
02/21/2004 15:00 19.5 15.5 Normal 7.8 9 90.9 240 0
01/22/2004 14:45 16 12 Normal 7.1 < 1 8.65 81.31 260 8 0 1.9
11/21/2003 12:30 23.5 17 Normal 7.4 < 1 6.8 70.72 250 4 0 1.25
10/18/2003 15:25 24 23.5 Normal 6.9 < 1 5.45 63.77 260 2 0 1.65
09/20/2003 13:45 24.5 25 Normal 7 < 1 6.25 75 260 0 1.6
08/16/2003 13:30 33.5 30 Normal 7.2 < 1 6.3 81.9 250 5 0.16 1.75
06/16/2003 17:15 30 30 Normal 8.5 8.4 109.2 230 2 1.7 1.5
05/25/2003 15:15 28 29 Normal 7.4 < 1 6.78 86.72 270 0 1.5
03/31/2003 14:05 22.5 16 Normal 7.4 < 1 7.2 73.44 220 7 0 .75
02/12/2003 13:45 20 14 Normal 7.4 10.1 98.98 220 5 0 .6
11/24/2002 14:30 24 15 No Flow 7 < 1 9.75 97.5 160 0 .6
09/07/2002 00:00 32 30 No Flow 7.8 < 1 7.05 91.65 290 30 0 1.45
08/13/2002 08:00 25 29 6.6 < 1 .9 10.7 290 3 0.5 1.75
07/10/2002 15:00 28 31 7 7.6 98.2 280 1 0.6 1.25
06/18/2002 16:00 32 30 7.3 < 1 5.8 74.2 280 3 1.5 1.7
05/20/2002 25 24 7 < 1 4.9 56.8 270 43 0 1.7
04/19/2002 10:00 23 25 6.7 3.6 42.2 280 3 0 1.1
03/12/2002 14:30 22 14.5 7.1 < 1 7.7 74.2 240 1 1.4
01/28/2002 13:00 24 14 7 < 1 8.8 84.5 190 23 0 .6
01/16/2002 09:00 12.5 9.75 7.9 69.1 11 0
01/16/2002 17:45 15 12 9.7 89.2 11 0
01/06/2002 15:30 15 7.5 7.1 < 1 10.9 90.3 190 1 0.7 .3
11/25/2001 15:30 23 16.5 7.1 < 1 7.4 74.2 170 9 0 .25
10/29/2001 17:00 23 21 7 < 1 6.3 69.3 250 16 0 1.1
10/14/2001 09:00 16 18.5 6.8 < 1 4.4 45.7 240 1 2.25 1.25
10/03/2001 09:35 25 21 6.7 < 1 1.6 17.1 240 11 0 1.25
07/25/2001 18:00 34 33 6.9 < 1 6.8 90.5 240 23 0
06/23/2001 18:00 30 30 6.9 < 1 6.1 78.1 230 2 0.5 1
05/29/2001 17:30 30 29 6.9 < 1 5.9 73.7 220 3 0
04/19/2001 13:30 23.5 21 6.5 < 1 3.5 38.5 230 2 0.25 1
03/12/2001 15:30 13 16 7 < 1 8.3 83 240 1 0.2 1.25
02/08/2001 16:00 21 16.5 6.8 < 1 4.7 47.5 250 0 1.1
01/14/2001 15:30 15 10 6.7 < 1 9.1 80.1 240 1 0.25 .75
11/20/2000 11:00 13.5 11 < 1 6.1 54.9 230 2 0.5 .5
10/03/2000 09:55 25.5 24 7 < 1 5.6 65 340 7 0 1
09/15/2000 12:00 30 27.5 7 < 1 4.2 51.7 2 1.25
07/05/2000 18:00 32 28 7.4 < 1 5.8 71.3 20 0
06/11/2000 17:00 26 28 7.9 < 1 7.2 88.7 0 3.6
05/15/2000 17:00 30 28 7.1 < 1 5.7 70.1 3 0
03/28/2000 09:00 21 22 6.8 < 1 5.3 59.4 2 .75
03/09/2000 10:15 23 20 6.9 5.8 62.1 12 0
02/07/2000 17:00 23 12 7.1 < 1 9.6 88.3 6 0
01/09/2000 16:00 23 14 7.1 < 1 9.2 87.8 1 3.5
11/29/1999 09:50 15.5 5 Low 7.1 < 1 6.8 53 0 1.5
11/10/1999 14:53 27 21 7.1 < 1 7.8 85.8 0 2
10/04/1999 10:52 23 24 Low 7 < 1 6.6 76.6 75 0 1
08/28/1999 10:06 30 31 Low 6.9 < 1 5.2 67.6 38 0 1.3
07/21/1999 18:48 28 30 High 7 < 1 5 64 0 0.25 1.75
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