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)
06/28/2003 14:00 29.5 30 Normal 8.1 5.9 76.7 0 0.25 .41
05/26/2003 08:30 26 27 No Flow 7.8 < 1 4.7 58.28 0 .35 170
04/26/2003 14:30 26 25 No Flow 8.2 < 1 9.3 111.6 0 .49 110
03/22/2003 15:30 21 19 No Flow 8.4 < 1 10.6 114.48 0 .38 30
02/22/2003 14:30 20.5 17 No Flow 7.9 < 1 8.7 90.48 7 0 .3 140
01/04/2003 10:50 19.5 15 No Flow 7.7 < 1 8.1 81 5 0 .3 400
11/15/2002 13:45 18 20 Low 7.8 < 1 6.5 71.5 9 0 .3 710
10/18/2002 10:30 28.5 24 No Flow 7.8 < 1 6.8 80.24 9 0 .49 210
09/28/2002 10:30 29.5 27 Low 7.6 < 1 5 62 15 0 .38 210
09/02/2002 00:00 30 29 No Flow 7.8 < 1 4.8 61.44 16 0 .46 50
08/03/2002 09:20 29.5 30.5 8.3 < 1 4.7 60.6 21 0 < .38
07/21/2002 09:50 32.5 30 7.7 < 1 3 38.4 8 0 .15 220
06/23/2002 11:00 27.5 30 8.1 < 1 4.3 55 7 0.5 .38 30
05/27/2002 17:00 28 29 Low 7.9 < 1 6.7 84.4 10 0 1.25 50
05/03/2002 18:40 28 31.5 Low < 1 8.9 116.6 25 0 .3 490
04/13/2002 12:30 24 25 Low 8.2 < 1 6.9 81.4 0 < .38 130
02/23/2002 08:32 14 15 8.5 < 1 9.2 90.2 3 0.5 .46
02/23/2002 08:32 12.5 17 8.6 < 1 8.2 83.6 0 .46 30
01/26/2002 10:35 14 13 8 < 1 9.3 87.4 7 0 .46 60
11/10/2001 08:15 23 19 8.1 < 1 7.3 77.4 0 .46 20
10/14/2001 20.5 25 7.9 < 1 5.6 66.1 1 4.75 .3 270
09/29/2001 10:58 27 24 8.5 < 1 7.1 82.4 7 1.5 < .46 50
09/02/2001 18:08 29 27 High 8.1 < 1 2 24.4 0 8.5 .1 440
07/28/2001 16:30 30 32 Low 8.3 < 1 7.5 99 1 1.5 .66 90
06/23/2001 14:00 30 31 8.4 < 1 5.8 75.4 3 2 .3 20
06/23/2001 14:00 30 31 Normal 8.1 < 1 5.8 75.4 3 2 .3 20
05/19/2001 09:30 27 27 8.3 < 1 5.4 65.9 0 .38 20
04/20/2001 15:00 7 7.2 Low 8.3 < 1 7.1 58.5 0 .3 30
03/24/2001 08:30 19.5 20 Low 8.8 < 1 10.8 116.6 0 < .38 20
02/24/2001 10:00 18 20 7.8 < 1 7.5 80.5 0 .61 20
01/20/2001 14:15 6.5 11 7.4 < 1 9 81 2 4.25 .08 180
12/01/2000 11:40 22.5 17.5 Low 7.8 < 1 5.8 59.2 2 0.5 .15 140
10/21/2000 16:30 24 25 < 1 7.4 87.3 0 .38
09/09/2000 09:00 25 28 8.6 < 1 5.6 69.4 0 0.5 .53
08/11/2000 18:00 28 32 8.6 < 1 7.2 95 0 < .38
07/22/2000 11:43 27.5 30 8.4 < 1 5.2 66.6 0 .38 190
06/17/2000 08:43 27.5 27.5 8.1 < 1 5.3 65.2 29 0 400
05/28/2000 09:30 26.5 28 7.8 < 1 3.8 47.1 9 4.75 .75 410
04/15/2000 17:00 23 24.5 Low 8 < 1 7.8 91.3 3 1 .3 30
03/11/2000 15:00 14 20 Low 8.2 < 1 7.5 81 1 0.25 .4 50
02/11/2000 15:00 24.5 22 Low 7.9 < 1 7.7 86.2 4 0.5
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