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)
11/13/2006 12:30 24 18 1 7.8 < 1 6.85 72.61 470 7 0 2790
09/01/2006 13:00 36 26 1 7.9 < 1 6.35 77.47 480 3 0 220
05/03/2006 12:20 27.5 21 Low 7.8 6.5 72.8 400 1 0.02
03/06/2006 12:20 26 18 No Flow 7.4 < 1 6.9 73.14 520 0 960
02/13/2006 12:30 18 12 No Flow 7.6 < 1 9.4 88.36 520 20 0 480
01/23/2006 12:30 16 12.5 No Flow 7.6 < 1 8.9 84.55 490 50 0.27 1300
12/21/2005 12:30 12 12 No Flow 7.4 < 1 6.8 63.92 500 30 0 220
11/21/2005 12:40 19 15 No Flow 7.8 < 1 8.4 84 400 20 0 330
10/19/2005 12:40 30 21 No Flow 7.3 < 1 3 33.6 550 7 0 1280
09/12/2005 13:05 28 23.5 Low 7.5 < 1 3.2 37.44 310 1 0.39 6325
07/27/2005 10:00 32 24 No Flow 7.6 < 1 6.3 74.34 470 4 0.4 440
06/27/2005 12:35 30 31.5 No Flow 7.9 < 1 6.3 83.79 450 20 0 580
06/13/2005 12:30 27 23 No Flow < 1 6.7 77.72 8 0 310
05/18/2005 12:00 26 21 No Flow 7.4 < 1 6.2 69.44 490 4 0 680
04/27/2005 12:35 26 18.5 No Flow 7.6 < 1 7.1 75.97 460 14 0 960
04/04/2005 13:10 23 16 Low 7.4 < 1 7.2 73.44 470 0.5 0 910
03/11/2005 12:35 23 15 No Flow 7.5 < 1 9.8 98 470 5 0 340
02/09/2005 12:30 11 14 No Flow 7.8 < 1 8.2 80.36 460 2 0.5 360
01/14/2005 14:00 15 14 No Flow < 1 9 88.2 14 0 570
12/08/2004 13:10 18 17 No Flow 7.6 < 1 8.6 89.44 400 10 0.04 360
11/19/2004 12:35 20 20 No Flow 7.9 < 1 10 110 430 3 0.5 575
10/22/2004 12:20 27 24 No Flow 7.4 < 1 3.4 40.12 500 10 0 730
09/29/2004 12:15 28 23 No Flow 7.8 < 1 6.45 74.82 460 14 0 270
09/08/2004 11:00 24.5 23 No Flow 7.6 < 1 4.6 53.36 430 2 0.2 5840
08/11/2004 13:10 27.5 27 No Flow 7.6 < 1 6.35 78.74 500 10 0 330
07/07/2004 12:30 30 22 No Flow 7.1 < 1 3.95 45.03 510 1230
06/14/2004 13:15 28 18 No Flow 7.4 6.7 71.02 500 990
05/24/2004 12:50 26 21 No Flow 7.5 5.4 60.48 510 7 0 60
05/07/2004 13:00 24 19 No Flow 7.4 < 1 4.25 45.9 520 6 0 540
04/19/2004 12:25 23.5 19.5 No Flow 7.4 < 1 3.4 37.06 560 7 0 450
04/02/2004 12:00 7.3 19 No Flow 7.6 < 1 5.45 58.86 510 9 0 310
03/10/2004 12:40 23.5 17 No Flow 7.5 < 1 7.2 74.88 540 300
03/01/2004 13:00 23 Low 7.6 < 1 7.3 480 21 550
02/09/2004 12:40 15 13 No Flow 7.6 < 1 7.25 69.6 490 3 0
01/19/2004 12:55 14 12 No Flow 7.5 < 1 6.6 62.04 460 1
12/29/2003 13:10 16 15 No Flow 7.6 < 1 8.25 82.5 500 3810
12/08/2003 13:00 24 14 No Flow 7.7 < 1 7.2 70.56 480 0 5060
11/24/2003 13:05 12 14 No Flow 7.6 < 1 6.4 62.72 530 10 0 1980
11/10/2003 12:45 25.5 17.5 No Flow 7.6 < 1 4.9 51.45 490 70
10/27/2003 12:45 22 18 No Flow 7.8 6.8 72.08 500 1 0.1 160
09/05/2003 12:45 30 25 No Flow 7.7 7.6 91.2 500 10 0 460
08/11/2003 12:40 29.5 25 No Flow 7.1 < 1 6.55 78.6 480 29.5
07/23/2003 12:25 30 23 7.7 < 1 6.7 77.72 480 35.5
07/02/2003 12:20 29 22 No Flow 7.6 < 1 2.8 31.92 470 0 24
06/18/2003 13:00 31 24 No Flow 7.6 < 1 6.1 71.98 480 3 740
06/04/2003 14:00 29 23.5 Normal 7.8 6.2 72.54 190 1 1 14000
05/09/2003 12:10 29 20 No Flow 7.6 < 1 6.4 70.4 480 0 160
04/22/2003 13:45 18.5 19 No Flow 7.4 < 1 5.75 62.1 530
04/03/2003 12:30 26 17.5 No Flow 7.6 < 1 6.5 68.25 510 0 20
03/22/2003 12:50 17 16.5 Normal 7.8 < 1 10.2 105.06 570 7 0 40
02/19/2003 12:10 20 15 No Flow 7.5 < 1 6.55 65.5 530 0 80
01/10/2003 12:30 16 14 No Flow 7.6 < 1 7.95 77.91 540 12 0 50
12/18/2002 13:50 24 17 No Flow 7.3 < 1 2.15 22.36 550
11/25/2002 12:30 12.5 15.5 No Flow 7.5 < 1 5.7 57.57 570 0 150
11/08/2002 13:00 24 17 Low 7.4 < 1 5.9 61.36 600 0 160
10/11/2002 13:15 26 23 No Flow 7.6 < 1 6.3 73.08 430 2 1.5 310
09/10/2002 12:30 28 26 No Flow 7.6 < 1 4.3 52.46 380 0 0 1090
08/07/2002 12:40 31 29.5 7.7 < 1 6.8 86.4 410 0 880
06/26/2002 12:40 31 24 7.9 < 1 6.8 78.9 450 0 260
06/12/2002 13:15 33 23 7.8 < 1 8.2 92.9 450 3 0 490
05/29/2002 12:45 25 20.5 7.6 < 1 4.3 46.3 410 1 1 9875
05/06/2002 34 23 8 < 1 9.5 108.3 400 0 160
04/18/2002 13:00 28 23 8.1 < 1 9.6 109.4 420 0 130
04/05/2002 12:40 20 17 8 < 1 10 102 420 6 0 60
03/20/2002 12:50 18 17 Low 7.9 < 1 7.1 72.4 310 1.5 4575
03/01/2002 13:12 15.5 13.5 7.8 < 1 10.3 97.8 430 0 450
02/13/2002 12:30 15 15 7.7 < 1 13.3 130.3 500 6 0 640
01/30/2002 12:45 23 16.5 7.9 < 1 9.3 93.9 470 6 0 640
01/11/2002 12:30 13.5 13.5 7.7 < 1 11 104 520 6 0 1490
12/19/2001 12:45 17 14.5 7.8 9 87.3 530 0 2940
12/05/2001 12:45 28.5 17 7.7 < 1 6.9 70.4 610 1 0.6
11/14/2001 12:20 24 20.5 7.6 < 1 5 54.5 480 2 0.13 3870
11/02/2001 12:55 27 21 7.7 5.7 62.7 490 20 0 820
10/10/2001 12:30 7.7 18 0 1060
09/14/2001 12:30 29.5 25.5 7.9 < 1 5.9 70.2 470 5 0 1840
08/24/2001 12:50 34 24.5 7.8 < 1 6.9 80.1 470 0 230
08/08/2001 12:15 33 25 7.7 < 1 6.2 73.2 480 0 260
07/25/2001 14:00 32 26 7.9 < 1 8 96 490 0 130
07/11/2001 12:00 33 24.5 7.8 < 1 6.5 76.1 480 0 990
06/20/2001 12:45 31 26 7.9 < 1 7.2 86.4 510 0 140
06/01/2001 12:45 29 24 7.9 < 1 7.9 91.6 480 1 320
05/16/2001 12:40 31 19.5 7.8 8.8 94.2 460 280
05/04/2001 12:15 24 20 7.8 < 1 7.5 81 410 880
04/18/2001 12:15 18.5 19 7.8 < 1 8.2 86.4 500 1 160
04/06/2001 12:30 7 7 7 < 1 9.5 77.9 440 0 90
03/21/2001 12:45 24 15 < 1 10 98 470 3 10
03/07/2001 12:30 23 13.5 7.8 < 1 9.4 89.3 460 40
02/20/2001 12:30 23.5 14 7.8 < 1 10 96 440 5 0 40
02/09/2001 12:30 19 15 7.6 < 1 9.4 92.1 510 0 0.01 60
01/19/2001 12:15 10 9.5 7.8 < 1 10 87 440 70
12/29/2000 14:40 13.5 10 8 < 1 10 88 450 40
09/29/2000 11:20 25.5 23.5 8.1 < 1 7.4 85.1 510 0
08/23/2000 12:30 32 28 7.9 < 1 6.1 75.6 500 100
08/08/2000 12:15 33.5 28 7.8 < 1 6.5 80 2300
07/21/2000 11:45 34.5 26 7.3 < 1 6.4 76.2
06/14/2000 13:00 28 22.5 7.6 6.2 70.1 2 0.2 130
05/31/2000 12:25 31 24 7.8 < 1 6.8 78.9 60
05/15/2000 12:30 27 8 < 1 7.9 3 20
04/18/2000 13:30 24 21 7.8 < 1 5.5 60 210
04/05/2000 12:55 23.5 20 8.1 8.9 95.6 3 1 260
03/22/2000 12:50 26 19 7.8 8.1 85.9 1 0.1
03/05/2000 11:50 19 17 Normal 7.7 < 1 9.1 92.8
03/01/2000 12:35 24 19.5 8 8.9 95.8 80
02/07/2000 14:00 22 14 8 < 1 10.3 98.9 0 50
01/19/2000 14:15 31 17 7.6 < 1 6.5 66 0 350
01/09/2000 11:30 22 14.5 Normal 7.5 < 1 9 87.3 1
12/18/1999 12:45 22 14 8.1 9.2 88.3
12/01/1999 13:25 24 17 8.1 < 1 9.4 96.4 8 0 .91 420
11/28/1999 10:21 24.5 16.5 Normal 6.5 < 1 7.9 79.8 4 0 .91
11/10/1999 13:40 25 20 7.9 < 1 9.4 101.5 490
10/22/1999 12:30 24 20.5 7.9 < 1 7.4 80.7 12 340
10/17/1999 10:45 15.5 19.5 High 8.2 < 1 4 42.8 0 0 1
10/04/1999 13:00 27 24 8 < 1 8.6 99.2 0 170
09/13/1999 14:00 31 26 Low 8 < 1 8.9 106.8 150
09/01/1999 12:20 32 27 8 < 1 7.3 89.1 0
08/29/1999 10:03 34 26 Normal 8.3 < 1 7 84 0
08/13/1999 13:35 36 27 Normal 7.8 < 1 6.8 83.4 0 150
08/01/1999 10:00 28 26 Normal 8.4 < 1 5.9 70.4 0
07/29/1999 10:45 34 26.5 7.8 < 1 7 84.7
06/27/1999 10:30 28.5 23.5 Normal < 1 5.2 59.8 2 1
06/23/1999 12:30 33.5 23 7.7 < 1 6.1 69.5 1
05/22/1999 10:15 24 21.5 Normal 7.2 < 1 5 55.5 1
05/19/1999 12:30 27.5 22 7.6 < 1 6.5 72.8 1 4
04/22/1999 17:45 28.5 20.5 Normal 7.6 1 8.2 89.4 0
04/13/1999 13:30 26 21 7.7 < 1 7 77 0
03/21/1999 10:00 20 16 Normal 7.9 < 1 7.3 73.3
03/19/1999 16:45 19 17 Low 8 8.2 83.1 1 1.5
03/05/1999 15:00 28 18 7.7 < 1 8.7 90
02/20/1999 10:00 17 16.5 Normal 8 < 1 9.2 92.9 0 .21
02/16/1999 12:30 22.5 18 7.7 < 1 9.5 98.5
02/01/1999 12:30 21 17 7.8 < 1 10.2 104
11/16/1998 14:45 23 19.5 7.5 < 1 7.4 79.2 2 3
10/08/1998 11:30 22.5 24 7.7 < 1 6.6 76.6 2 2
08/11/1998 12:30 33 25 7.6 5.3 62.5 5 0.75
07/15/1998 07:45 24 23.5 7.6 < 1 5.4 62.1 2 0.1
03/17/1998 09:45 15 14 High 8.2 < 1 8.2 78.2 1 1.5
02/19/1998 11:15 17 14 7.8 < 1 7.8 1 1
02/04/1998 11:50 17 14.5 7.6 < 1 8.75 4 0
01/21/1998 12:15 24 15 7.7 < 1 8.95
01/06/1998 09:00 20 17.5 7.6 < 1 6.3 1 1.01
12/09/1997 10:50 21 15 7.6 < 1 6.25 2
12/02/1997 16:15 14 15 9.1 < 1 7.5 73 0 0.1
11/14/1997 11:45 14.5 15.5 7.7 < 1 7.65 1 2
11/01/1997 11:30 24 19.5 7.5 < 1 5.4
10/13/1997 18:30 23 23 7.8 < 1 6.25 1 1.5
09/27/1997 09:30 25.5 24 7.7 < 1 5.1 59.2 3
09/08/1997 16:00 40.1 31.1 8.5 < 1 6.85 90 6 0
07/25/1997 10:30 32 29 Low 7.8 < 1 6.2 78.1 30
06/17/1997 18:00 28 22 Low 7.9 < 1 7.3 81.8 0 0.25
06/11/1997 11:10 30.6 23 7.8 < 1 7.3 84 1 1
06/10/1997 18:20 28 21 High 8.2 < 1 5.6 61.1 0 1.25
05/06/1997 7:00 20.5 18.8 9.1 < 1 6.3 65 9
04/08/1997 7:00 17.8 16.6 7.9 < 1 8.85 92 3 0.7
01/05/1997 10:00 15.7 15.8 8.1 < 1 8.65 86
12/10/1996 6:45 17.1 16 8.1 < 1 7.6 76 6 0
11/19/1996 18:50 12 18 8.3 < 1 6.8 70 2 0.01
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