Date          TSP_concentration  Nitrate_Nitrite  Phosphate  Ammonia  
2006-01-17    11.69              1.17             0.025      0.83     
2006-01-31    37.75              0.96             0.017      0.87     
2006-03-13    30.14              1.60             0.017      1.61     
2006-03-27    10.99              0.58             0.013      0.77     
2006-04-10    11.74              1.49             0.023      2.41     
2006-05-08    17.10              1.57             0.092      4.41     
2006-06-14    18.74              0.45             0.078      4.30     
2006-06-27    17.40              0.81             0.097      7.48     
2006-07-12    16.00              0.80             0.095      5.49     
2006-07-31    14.25              1.65             0.085      5.88     
2006-08-15    15.43              0.94             0.049      2.45     
2006-09-19    20.82              1.95             0.098      2.89     
2006-11-06    15.54              1.08             0.024      2.00     
2006-12-12    32.67              1.21             0.03       0.83     
2007-01-02    19.43              1.32             0.02       0.86     
2007-01-16    52.91              2.32             0.02       1.29     
2007-01-30    45.99              4.16             0.08       1.52     
2007-02-12    43.07              2.86             0.01       1.00     
2007-02-28    54.04              1.76             0.02       1.14     
2007-03-12    63.19              3.90             0.02       0.71     
2007-03-26    42.37              1.88             0.02       2.10     
2007-04-10    27.47              1.85             0.03       0.67     
2007-04-30    25.51              1.98             0.03       3.39     
2007-05-15    25.63              1.85             0.07       7.67     
2007-05-30    24.48              1.40             0.10       3.69     
2007-06-13    31.15              1.45             0.11       4.40     
2007-07-11    23.59              1.92             0.11       7.27     
2007-07-25    20.30              1.49             0.05       2.73     
2007-08-15    26.71              0.85             0.05       1.12     
2007-09-07    20.73              3.69             0.12       7.50     
2007-10-11    13.17              0.99             0.04       1.70     
2007-11-07    18.43              1.44             0.03       3.82     
2007-11-19    nd                 1.86             0.03       3.88     
2007-12-04    32.83              2.41             0.01       0.05     
2008-02-20    39.57              2.17             0.01       0.53     
2008-03-28    46.02              3.14             0.03       4.46     
2008-04-17    22.00              4.12             0.07       5.76     
2008-05-01    19.93              2.27             0.07       6.22     
2008-05-28    18.48              0.62             0.06       6.83     
2008-06-18    27.92              1.19             0.11       6.28     
2008-09-04    15.26              1.43             0.10       6.84     
2008-09-18    15.94              1.19             0.06       8.03     
2008-10-02    11.79              0.63             0.05       3.03     
2008-11-03    17.72              0.99             0.04       0.88     
2008-11-17    27.61              1.32             0.04       2.03     
2008-12-01    26.38              1.52             0.03       1.10     
2008-12-15    12.78              1.01             0.02       0.43     
2008-12-22    27.69              0.89             0.02       0.22     
2009-01-19    27.13              1.80             0.03       0.30     
2009-02-02    39.36              2.57             0.02       0.82     
2009-02-16    43.52              1.36             0.01       0.09     
2009-03-02    29.53              1.48             0.02       0.86     
2009-03-16    43.50              1.98             0.03       0.60     
2009-03-30    48.47              3.16             0.05       5.01     
2009-04-14    15.99              1.68             0.05       3.67     
2009-04-27    18.58              2.07             0.02       2.02     
2009-05-11    27.79              1.80             0.05       3.31     
2009-06-01    11.24              0.64             0.08       5.12     
2009-06-29    38.14              1.06             0.07       5.45     
2009-07-08    5.47               0.81             0.07       3.50     
2009-07-27    20.00              1.03             0.11       2.70     
2009-08-11    19.12              1.46             0.10       3.16     
2009-08-31    22.31              1.64             0.06       4.69     
2009-09-08    17.96              1.49             0.06       2.80     
2009-09-28    4.47               2.05             0.05       2.39     
2009-10-13    9.86               0.97             0.08       2.70     
2009-10-19    16.56              1.74             0.03       2.27     
2009-11-16    10.35              1.25             0.05       0.77     
2009-11-30    28.55              3.66             0.04       2.62