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)
10/12/2004 12:55 23 23.5 Normal 7.4 6 7.15 83.66 770 6 0 .15
10/15/2003 15:05 25 23.5 Normal 7.1 10 6.8 79.56 730 0
06/25/2003 13:25 32 27 Normal 7.4 < 10 6.5 80.6 650 1 0.2
05/13/2003 11:10 26 24 Normal 2 6.45 76.11 650 1 0.1
03/27/2003 14:30 24 21 Normal 7.6 < 10 7.15 80.08 650 2
03/22/2000 11:00 22.5 23 7.1 < 4 8.1 91.8 1 0.5
03/01/2000 11:30 28 23 Normal 7.1 4 8.5 96.9 2 0.5
02/23/2000 11:20 28 23 7.1 4 7.2 82.1
01/26/2000 11:00 9 19 7.4 < 2 8 84.8
01/12/2000 11:30 22.5 21.5 7.2 < 3 12.1 134.3
11/10/1999 10:10 20 23 Normal 7.4 8 1.7 19.4 0 0.5
10/29/1999 10:00 24 28 Normal 7.4 8 7.5 93 7 0
10/15/1999 09:40 24 26 Normal 7.2 8 7.4 88.2
09/28/1999 09:40 25 27 Normal 7.3 < 10 5.3 64.7
09/16/1999 09:40 22 25 Normal 7.6 6 7.1 84.2
09/01/1999 09:40 27 26 Normal 7.3 < 8 7.1 85.2 3 0.7 66.6
04/30/1999 10:00 23 23 7.4 < 4 7.1 80.4
03/25/1999 10:40 17 23 High 7.4 < 8 7.7 87.8
02/16/1999 10:00 22 20 Normal 7.2 < 6 9.1 97.7
02/03/1999 10:00 19 16 High 7.6 < 8 8.2 82 2 0.1
01/20/1999 10:45 22 20.5 Normal 7.3 6 9.5 103.6
12/04/1998 10:40 24.5 23 High 7.3 4 7.2 81.5 86
11/05/1998 10:50 13.5 21.5 7.4 4 6.8 75.5 1 0.1
10/22/1998 10:50 19 17.5 High 7.5 < 1 8 81.9 2 12.5
10/05/1998 11:10 28 27 High 7.4 < 8 7.4 90.3 22
09/09/1998 11:00 27 26 Normal 7.4 6 7.3 87.6 2 0.1
08/27/1998 11:00 32.5 28 Normal 7.2 6 7.5 93 4 1
05/14/1998 08:30 25 23 Normal 7.1 4 12
04/09/1998 08:30 19 21 High 7.3 < 4 5
02/19/1998 08:20 13 19 High 7.3 < 6 8 84.3 1 2
02/12/1998 08:20 14 18 Normal 7.2 < 6 7.3 75.9 2 1
01/29/1998 14 19 Normal 7.3 8 0
01/22/1998 08:20 12 20 High 7.4 4 1 1
01/15/1998 08:20 12 18 7.5 2 1
01/08/1998 08:19 10.5 14.5 7 < 4 9.2 90 1 3
11/20/1997 08:20 15 20 7.4 < 8 7.5 72 3 1.5
11/13/1997 08:25 13.29 20 7.7 < 10 7 75 1 2
11/06/1997 08:20 16.5 21 7.4 < 6 6.9 75 16
10/23/1997 20 23 Normal 7.4 8 1 1
10/16/1997 08:27 13 21 7.2 4 4 0
03/27/1997 9:40 20 21 7.4 6 2
03/21/1997 9:40 23 20 7.3 4 7.2 75
03/06/1997 9:50 18 18 7.4 < 1 8 80 15.5
02/26/1997 9:45 17 15 7.4 < 1 7.9 78 0
02/20/1997 9:45 24 21 7.4 < 1 7.6 85 3.5
02/13/1997 9:45 14 12 7.6 < 1 8.4 75
12/04/1996 9:45 19 19 7.2 6 6.9 70
11/27/1996 9:50 12 19 7.3 6 7.7 80
11/21/1996 9:45 21 22 7.2 4
11/15/1996 9:50 22 23 7.2 < 1 7.3 85 0
11/06/1996 9:40 24 24 7.2 1 6.7 75
10/23/1996 10:00 18 21 7.3 2 6.9 75
10/17/1996 9:45 24 26 7.3 < 1 6.35 80
10/09/1996 9:45 20 23 7.4 < 1 7.6 90
10/03/1996 9:45 23 25 7.2 < 0.5 6 70
09/26/1996 9:50 26 27 7.4 4 6.1 80
09/20/1996 9:40 25 25 7.1 4 6.3 75 1
09/12/1996 10:45 23 26 7.3 6
09/06/1996 9:50 30 28 7.4 < 0.5 7.5 95
04/18/1996 13:45 36 24 7 < 2 8.28
04/04/1996 14:00 27 23 7.3 < 1 12.2 140
03/29/1996 14:00 22 20 7.2 4
03/08/1996 14:08 11 19 7.3 6 8.4 90
02/23/1996 14:00 35 23 7.4 < 4 9.65
02/08/1996 14:25 21 22 Normal 7.3 6 8.3 94
01/26/1996 14:15 22 20 7.4 4 8.2 90 2
01/18/1996 14:10 6 17 7.5 4 9.8 98
11/17/1995 14:00 20 22 7.1 2 6.9 75 0
11/03/1995 14:00 16 22 7 4 8 90
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