LCRA Logo   Colorado River Watch Network (CRWN) Water Quality Data

  • Site 275
  • Llano River below Hwy 16
  • Hydromet Rainfall
  • Hydromet Flow
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    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)
    12/17/2013 08:45 4.5 8 3 8 < 1 10.1 86.86 430 5 0 1
    11/17/2013 09:15 22 19 3 8 < 1 8.2 88.56 410 13 0.814
    04/29/2013 10:05 23 24 3 8 < 1 7 82.6 410 5 0 > 1.22
    09/19/2012 11:44 33 24 3 8.5 6.2 73.16 320 6 0 0.739 20
    08/31/2012 12:20 37 29 Normal 8 5.5 70.4 500 3 4 0.73
    01/31/2012 09:00 17.5 19 3 8 < 1 8.6 92.88 440 6 0 > 1.2
    01/01/2012 09:00 9 11 3 7.5 < 1 9.5 87.4 430 11 0 1.15
    12/01/2011 09:15 12.5 12 3 7.5 < 1 9.1 85.54 410 3 0.27 > 1.2
    11/01/2011 09:15 18 17 3 7.5 < 1 7.3 75.92 390 25 0 0.8
    10/03/2011 09:00 16 21.5 2 8 < 1 6.87 77.63 460 4 0.21 0.756
    09/01/2011 09:15 29 28 2 7.5 < 1 4.35 54.81 510 30 0 0.65
    08/03/2011 09:00 31.5 30 2 8 < 1 5.3 68.9 470 0 43 0.65
    07/03/2011 09:45 31 30 2 7.5 < 1 5.1 66.3 440 10 0 0.73
    06/02/2011 09:30 26.5 28 2 8 < 1 5.8 73.08 400 22 0 0.84
    05/03/2011 09:00 11 17.5 3 7.5 < 1 7.65 80.32 380 1 0.75 > 1
    04/01/2011 09:30 21.5 20 3 8 < 1 7.4 81.4 390 26 0
    03/03/2011 09:00 17 17 3 7.5 < 1 7.4 76.96 400 46 0 > 1.2
    02/05/2011 09:00 4 3 3 7.5 < 1 8.8 66.88 430 5 0 > 1.2
    01/04/2011 09:00 10.5 10 2 8 < 1 6.5 58.5 440 7 0 > 1.2
    12/02/2010 09:15 10 10 3 8 < 1 8.65 77.85 410 34 0 > 1.2
    11/02/2010 09:15 14.5 18 3 8 < 1 7.4 78.44 390 1 0.1 1.1
    10/01/2010 09:00 21 23 3 8 < 1 6.5 75.4 380 5 0 0.67
    09/02/2010 09:15 28 29 3 8 < 1 5.38 68.8 380 5 0 0.49
    08/02/2010 09:00 29.5 31 3 8 < 1 5.35 70.62 380 5 0 0.61
    07/01/2010 09:00 26 28 3 8 < 1 5.2 65.52 360 0 1 0.4
    06/02/2010 09:00 27 29 3 8 < 1 5.3 67.84 340 7 0 0.56
    05/04/2010 09:00 16.5 18 3 8 1 7 74.2 440 5 0 0.976
    04/02/2010 09:00 12 19 3 8 < 1 7.8 84.24 450 5 0 > 1.22
    03/02/2010 09:15 9.5 9.5 5 8 1 9.8 87.22 440 1 0.2 > 1.2
    02/02/2010 09:30 9 8.5 3 7.5 < 1 9.9 86.13 370 5 0 1.1
    01/05/2010 09:45 8.5 7 3 8 < 1 10.9 91.56 450 5 0.18 > 1.2
    12/01/2009 09:00 10 12 3 8 < 1 9.2 86.48 390 0 0.1 > 1.2
    11/02/2009 08:00 11.5 15.5 3 8 < 1 8.7 87.87 370 5 0.37 > 1.2
    10/01/2009 09:45 25.5 25.5 3 8 < 1 5.3 64.13 340 2 2.25 > 1.2
    09/02/2009 09:00 27.5 27.5 3 8 < 1 5.5 68.75 330 6 0 0.75
    08/03/2009 09:00 29.5 28.5 3 8 < 1 4.8 60.96 340 2 0.35 0.65
    07/02/2009 09:30 28 28.5 3 8 < 1 5.6 71.12 330 1 1.5 0.32
    06/02/2009 09:00 27 28 3 8 < 1 5.2 65.52 390 6 0 0.75
    05/01/2009 09:00 23 23 5 7.5 < 1 6.33 73.37 310 4 0.2 0.7
    04/01/2009 09:00 16 18 3 8 < 1 8.6 91.16 360 7 0 > 1.2
    03/05/2009 09:00 19.5 18 3 8 < 1 6.5 68.9 370 30 0 > 1.2
    02/02/2009 09:00 11 10.5 3 8 < 1 9 81.9 390 17 0 > 1.2
    01/02/2009 09:00 8 11 3 8 < 1 8.1 74.52 370 5 0 > 1.2
    12/02/2008 14:30 24 13 3 8 < 1 7.7 73.92 370 20 0 > 1.2
    12/01/2008 09:30 14 11.5 3 8 < 1 9.9 92.07 350 20 0 > 1.2
    10/31/2008 09:15 21.5 18.5 3 8 < 1 7.4 79.18 340 7 2 > 1.2
    03/14/2004 15:00 19 17 High 8.1 < 1 8.5 88.4 390 1 2
    01/18/2004 17:15 5 10.5 Normal 8.2 < 1 9.5 86.45 420 2 1.5
    01/04/2004 16:20 15 16 Low 8.4 < 1 7.1 72.42 410 120
    11/09/2003 17:10 14.5 15 Normal 8.3 < 1 8.75 87.5 390 1 0.05 20
    09/24/2003 17:40 24 25 High 8.3 < 1 6.7 80.4 310 1
    07/25/2003 20:15 30 30 Low 6.6 < 1 6.35 82.55 420 0
    06/15/2003 17:00 27 27 Flood 8 < 1 6.5 80.6 280 0 1.5 700
    05/07/2003 18:15 32 31 Low 7.5 < 1 6.7 88.44
    04/22/2003 17:30 19 20.5 Normal 7.1 < 1 7.3 81.03 400 40 0
    04/09/2003 17:55 20 22 Normal 7.6 < 1 7.9 90.06 410 0 70
    03/23/2003 16:40 27 22 Normal 7.8 < 1 8.3 94.62 420 1
    02/09/2003 15:10 Low 8.6 < 1 10.8 2 0.1 10
    01/26/2003 14:13 8 8 Normal 8.6 < 1 11.9 102.34 390 1 0.02
    01/13/2003 16:45 10 8 Normal 8.4 < 1 1 0.6 40
    12/09/2002 16:45 9 11 Normal 9 < 1 10.9 100.28 0 0.1
    10/21/2002 13:30 20 19 High 8.3 < 1 8.6 92.88 360 0 1.21
    10/07/2002 17:15 37 27 Normal 8.5 < 1 7.3 90.52 380
    09/22/2002 18:00 30 25.5 Normal 8.6 < 1 7.3 88.33 340 4 0
    08/25/2002 17:25 40 32.5 Low 8.3 < 1 6.1 82.35 370 9 180
    07/29/2002 19:45 31.5 29 Normal 8.6 < 1 6.7 83.8 17 0 170
    07/08/2002 19:50 26.5 28.5 High 8.3 6.6 82.5 280 0 0.75 1260
    06/25/2002 21:00 27 28.5 Low 8.7 < 1 6.2 77.5 370 7
    05/15/2002 16:30 26 25 Low 8.3 < 1 8 94.4 180
    04/29/2002 15:30 32 29 Normal 8.3 < 1 7.5 94.5 510 210
    04/18/2002 14:20 30.5 26 Normal 8.2 < 1 6.8 81.6 450 4 0
    04/08/2002 18:55 28 21 Normal 8.6 < 1 8.3 91.3 440 1 0.5 310
    03/31/2002 11:00 20 19 Normal < 1 8.6 91.2 1 0.22
    03/11/2002 27 16 Normal 8.1 < 1 8.4 84 4 0.01 20
    02/25/2002 15:40 20 17 Normal 8.3 < 1 9.1 92.8 390 4 0.04 10
    02/12/2002 14:20 18 12 Normal 8.3 < 1 410 10
    01/27/2002 16:20 25 16 Normal 8.5 < 1 9.9 99 400 3 20
    01/21/2002 17:20 20 15 Normal 8.6 < 1 10 98 340 10
    01/17/2002 14:45 13 13 Normal 8.1 10 94 400 0
    12/19/2001 17:30 13 12 Normal 8.1 < 1 9.5 87.4 430 2 0.15 90
    12/03/2001 14:00 20 17 Normal 8.2 < 1 9.1 92.8 0 0.65 50
    11/19/2001 17:30 15 18 High 7.3 < 1 8.5 88.4 370 0 4 380
    10/28/2001 16:00 27 21 Normal 8.3 < 1 7.7 84.7 350 12
    10/08/2001 16:30 28 22.5 Normal 8.2 < 1 7.3 81.9 360 3 0.25 70
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