NORTH HEAD


Period 96-98   FLOW       NFR    BOD Grease&Oil      NH4    TKN     TN     TP    NO3    NO2    As    Cd    Cr    Cu    Pb    Hg    Ni    Se    Ag    Zn    Cn Phenol
n            730.000   730.000  0.000   730.000    56.000  0.000  0.000  0.000  0.000  0.00 56.00 56.00  56.0  56.0  56.0 56.00  56.0 56.00 56.00  56.0 56.00 56.000
Mean      347271.233   176.841   .       23.654    30.304   .      .      .      .      .    2.50  2.50  13.2 131.2  10.7 0.272  15.7  2.50 11.88 144.2 0.005  0.039
Std Dev   113634.460    30.294   .        6.833     5.434   .      .      .      .      .    0.00  0.00  11.5  33.7   4.4 0.095  15.9  0.00  5.64  97.2 0.001  0.017
Min       249000.000    45.000   .        2.500    12.000   .      .      .      .      .    2.50  2.50   2.5  64.0   5.0 0.250   5.5  2.50  2.50  76.0 0.005  0.011
Max       968000.000   351.000   .       40.000    37.000   .      .      .      .      .    2.50  2.50  77.0 260.0  26.0 0.800  99.0  2.50 24.00 820.0 0.010  0.093
10%ile    283000.000   140.000   .       15.000    26.000   .      .      .      .      .    2.50  2.50   6.5  88.0   6.2 0.250   7.0  2.50  2.50  94.0 0.005  0.023
25%ile    295000.000   161.000   .       20.000    29.500   .      .      .      .      .    2.50  2.50   7.9 112.5   8.0 0.250   9.0  2.50  8.15 110.0 0.005  0.027
50%ile    309000.000   179.000   .       24.000    32.000   .      .      .      .      .    2.50  2.50  10.5 130.0  10.0 0.250  12.0  2.50 12.00 125.0 0.005  0.035
75%ile    343000.000   194.000   .       28.000    33.000   .      .      .      .      .    2.50  2.50  13.8 150.0  12.0 0.250  15.0  2.50 15.00 159.5 0.005  0.046
80%ile    357000.000   198.000   .       29.000    34.000   .      .      .      .      .    2.50  2.50  15.5 150.0  13.0 0.250  16.0  2.50 15.00 164.0 0.005  0.049
90%ile    441500.000   211.500   .       32.000    34.000   .      .      .      .      .    2.50  2.50  19.0 160.0  15.0 0.250  19.0  2.50 20.00 177.5 0.005  0.061
95%ile    624000.000   222.000   .       33.000    36.000   .      .      .      .      .    2.50  2.50  23.0 183.0  22.0 0.570  52.0  2.50 22.50 180.0 0.010  0.082
.
NORTH HEAD


Period 96-97   FLOW       NFR    BOD Grease&Oil      NH4    TKN     TN     TP    NO3    NO2    As    Cd    Cr    Cu    Pb    Hg    Ni    Se    Ag    Zn    Cn Phenol
n            365.000   365.000  0.000   365.000    28.000  0.000  0.000  0.000  0.000  0.00 28.00 28.00  28.0  28.0  28.0 28.00  28.0 28.00 28.00  28.0 28.00 28.000
Mean      333868.493   173.863   .       23.584    30.571   .      .      .      .      .    2.50  2.50  16.7 133.6  10.4 0.261  16.1  2.50 11.13 136.0 0.005  0.048
Std Dev   104427.662    25.830   .        6.544     5.371   .      .      .      .      .    0.00  0.00  14.9  27.9   4.1 0.060  17.7  0.00  4.98  28.3 0.001  0.020
Min       249000.000    45.000   .        5.000    12.000   .      .      .      .      .    2.50  2.50   6.5  80.0   6.0 0.250   6.6  2.50  2.50  82.0 0.005  0.017
Max       928000.000   242.000   .       38.000    37.000   .      .      .      .      .    2.50  2.50  77.0 210.0  25.0 0.570  99.0  2.50 24.00 180.0 0.010  0.093
10%ile    278000.000   142.000   .       15.000    26.000   .      .      .      .      .    2.50  2.50   9.0  93.0   6.3 0.250   7.3  2.50  2.50  94.0 0.005  0.026
25%ile    288000.000   163.000   .       20.000    30.000   .      .      .      .      .    2.50  2.50  10.5 117.5   8.0 0.250   9.3  2.50  8.15 118.0 0.005  0.032
50%ile    302000.000   177.000   .       24.000    32.000   .      .      .      .      .    2.50  2.50  12.5 136.0   9.5 0.250  12.0  2.50 11.75 130.0 0.005  0.046
75%ile    328000.000   190.000   .       28.000    33.000   .      .      .      .      .    2.50  2.50  16.3 148.0  11.5 0.250  14.5  2.50 14.00 162.0 0.005  0.059
80%ile    342000.000   193.000   .       29.000    34.000   .      .      .      .      .    2.50  2.50  18.0 152.0  12.0 0.250  15.5  2.50 14.00 170.0 0.005  0.061
90%ile    405000.000   202.000   .       32.000    35.000   .      .      .      .      .    2.50  2.50  20.0 159.5  15.0 0.250  21.0  2.50 17.00 177.0 0.005  0.082
95%ile    551000.000   208.000   .       33.000    36.000   .      .      .      .      .    2.50  2.50  57.5 183.0  20.0 0.250  45.0  2.50 21.00 177.5 0.010  0.091
.
NORTH HEAD


Period 97-98   FLOW       NFR    BOD Grease&Oil      NH4    TKN     TN     TP    NO3    NO2    As    Cd    Cr    Cu    Pb    Hg    Ni    Se    Ag    Zn    Cn Phenol
n            365.000   365.000  0.000   365.000    28.000  0.000  0.000  0.000  0.000  0.00 28.00 28.00  28.0  28.0  28.0 28.00  28.0 28.00 28.00  28.0 28.00 28.000
Mean      360673.973   179.819   .       23.725    30.036   .      .      .      .      .    2.50  2.50   9.7 128.8  11.0 0.282  15.3  2.50 12.63 152.3 0.005  0.030
Std Dev   120812.522    33.956   .        7.119     5.581   .      .      .      .      .    0.00  0.00   4.6  39.0   4.8 0.121  14.1  0.00  6.23 135.4 0.001  0.008
Min       250000.000    53.000   .        2.500    12.000   .      .      .      .      .    2.50  2.50   2.5  64.0   5.0 0.250   5.5  2.50  2.50  76.0 0.005  0.011
Max       968000.000   351.000   .       40.000    37.000   .      .      .      .      .    2.50  2.50  23.0 260.0  26.0 0.800  73.0  2.50 24.00 820.0 0.010  0.045
10%ile    293000.000   137.000   .       14.000    22.000   .      .      .      .      .    2.50  2.50   5.1  82.0   5.4 0.250   6.8  2.50  2.50  83.0 0.005  0.020
25%ile    301000.000   160.000   .       20.000    28.500   .      .      .      .      .    2.50  2.50   6.9  98.5   8.2 0.250   8.9  2.50  9.00 110.0 0.005  0.025
50%ile    318000.000   182.000   .       25.000    31.500   .      .      .      .      .    2.50  2.50   8.2 125.0  10.0 0.250  12.0  2.50 13.00 120.0 0.005  0.031
75%ile    357000.000   200.000   .       29.000    33.500   .      .      .      .      .    2.50  2.50  11.0 150.0  13.0 0.250  15.5  2.50 16.50 147.5 0.005  0.036
80%ile    378000.000   205.500   .       30.000    34.000   .      .      .      .      .    2.50  2.50  13.0 150.0  13.0 0.250  16.0  2.50 18.00 150.0 0.005  0.038
90%ile    487000.000   220.000   .       33.000    34.000   .      .      .      .      .    2.50  2.50  17.0 170.0  17.0 0.250  19.0  2.50 21.00 180.0 0.005  0.041
95%ile    650000.000   228.000   .       34.000    36.000   .      .      .      .      .    2.50  2.50  19.0 180.0  22.0 0.600  52.0  2.50 22.50 240.0 0.005  0.043
