Norah Head Outfall
Period 96-98
Statistic FLOW NFR BOD Grease&Oil NH4 pH Chlorine Organic N TP NO3 NO2 COD Res.Cl Alkalinity
n 730 103.0 103.0 10.0 102.0 92.0 102.0 100.0 102.0 102.0 0.0 103 0 0
Mean 20479 24.7 19.4 2.9 6.7 7.3 238.6 4.2 7.6 7.6 . 69 . .
Std Dev 8108 9.8 6.0 2.5 4.2 0.2 39.8 2.0 1.0 4.4 . 14 . .
Min 0 8.4 9.0 0.0 0.6 6.7 116.0 1.4 4.4 0.0 . 41 . .
Max 49195 70.0 36.8 6.5 25.2 7.9 340.0 14.0 9.8 20.0 . 102 . .
10%ile 10047 14.4 12.7 0.0 2.0 7.0 188.0 2.7 6.3 4.0 . 51 . .
25%ile 15154 18.0 15.4 0.0 3.9 7.2 216.0 2.8 7.1 4.0 . 59 . .
50%ile 20426 22.8 19.3 3.5 5.7 7.3 240.0 3.9 7.8 6.0 . 68 . .
75%ile 25760 29.6 22.1 4.6 8.4 7.5 264.0 4.8 8.4 10.0 . 78 . .
80%ile 27036 32.4 23.5 5.3 9.2 7.5 274.0 4.8 8.5 12.0 . 81 . .
90%ile 31070 36.4 27.3 6.3 12.9 7.7 288.0 6.3 8.7 12.0 . 85 . .
95%ile 34325 42.4 30.4 . 13.4 7.7 300.0 6.9 9.2 16.0 . 93 . .
Period 96-97
Statistic FLOW NFR BOD Grease&Oil NH4 pH Chlorine Organic N TP NO3 NO2 COD Res.Cl Alkalinity
n 365 51.0 51.0 7.0 51.0 46.0 51.0 50.0 51.0 51.0 0.0 51 0 0
Mean 20109 26.2 18.4 2.7 6.6 7.3 250.7 4.3 7.7 7.9 . 70 . .
Std Dev 7662 10.5 5.7 2.4 4.0 0.2 40.2 1.7 0.9 4.7 . 15 . .
Min 862 11.6 9.0 0.0 0.6 6.9 116.0 1.4 5.8 0.0 . 47 . .
Max 43528 70.0 36.7 6.0 18.5 7.8 340.0 12.3 9.4 20.0 . 100 . .
10%ile 10280 14.8 10.2 . 2.0 7.0 210.0 2.4 6.6 4.0 . 51 . .
25%ile 14682 18.8 14.3 0.0 3.6 7.1 228.0 3.4 7.1 4.0 . 56 . .
50%ile 20039 26.4 18.9 3.0 5.6 7.2 250.0 4.2 7.8 6.0 . 68 . .
75%ile 24991 32.4 20.7 4.6 9.0 7.4 276.0 5.0 8.3 10.0 . 82 . .
80%ile 26258 32.8 21.1 . 9.2 7.4 284.0 5.3 8.4 12.0 . 83 . .
90%ile 30510 35.2 24.2 . 12.6 7.6 294.0 6.3 8.7 16.0 . 92 . .
95%ile 32956 42.4 27.3 . 14.3 7.7 314.0 6.7 9.2 16.0 . 100 . .
Period 97-98
Statistic FLOW NFR BOD Grease&Oil NH4 pH Chlorine Organic N TP NO3 NO2 COD Res.Cl Alkalinity
n 365 52.0 52.0 3.0 51.0 46.0 51.0 50.0 51.0 51.0 0.0 52 0 0
Mean 20849 23.2 20.4 3.5 6.7 7.3 226.5 4.1 7.6 7.3 . 68 . .
Std Dev 8526 8.9 6.2 3.3 4.4 0.2 35.9 2.2 1.2 4.1 . 12 . .
Min 0 8.4 9.1 0.0 1.4 6.7 150.0 2.0 4.4 2.0 . 41 . .
Max 49195 43.6 36.8 6.5 25.2 7.9 320.0 14.0 9.8 20.0 . 102 . .
10%ile 9986 13.2 13.3 . 2.5 7.0 182.0 2.7 5.9 4.0 . 50 . .
25%ile 15597 17.6 16.0 . 3.9 7.2 202.0 2.8 6.9 4.0 . 59 . .
50%ile 20924 22.2 19.5 4.0 6.2 7.3 230.0 3.6 7.8 6.0 . 68 . .
75%ile 26528 27.4 23.6 . 8.4 7.5 250.0 4.2 8.4 10.0 . 76 . .
80%ile 27932 28.0 24.5 . 9.0 7.5 250.0 4.2 8.5 10.0 . 78 . .
90%ile 33156 36.4 29.9 . 12.9 7.7 274.0 5.7 8.7 12.0 . 83 . .
95%ile 34511 42.4 33.2 . 13.4 7.7 284.0 7.0 9.2 16.0 . 87 . .