124 Table 35: Annual maximum and annual median data for ammoniacal nitrogen NH4-N (g/m3) across four sites sampled in the Ohinemuri River at Waihi from 2003-2021. Measures are colour coded according to the NOF Attribute parameters that they fall within (NPS-FM 2020): green = Attribute A; yellow = Attribute B; red = Attribute C or Attribute D (both of which fall below the National Bottom Line for NH4-N). Site locations are shown in Figure 14. NOF Attributes Annual Maximum Annual Median Attribute A (g/m3) <0.05 <0.03 Attribute B (g/m3) >0.05 - <0.40 >0.03 - <0.24 NBL (g/m3) 0.4 0.24 Attribute C (g/m3) >0.4 - >2.2 >0.24 - <1.3 Attribute D (g/m3) >1.3 >2.2 Site OC2 OH3 OH5 OH6 NH4-N (g/m3) Ann. Max Ann. Med Ann. Max Ann. Med Ann. Max Ann. Med Ann. Max Ann. Med 2005 0.440 0.030 0.430 0.070 2006 0.050 0.020 0.490 0.060 0.530 0.160 2007 0.040 0.014 0.290 0.080 0.580 0.145 2008 0.096 0.010 0.280 0.010 0.450 0.074 1.500 0.220 2009 0.089 0.010 0.160 0.010 1.20 0.220 0.820 0.180 2010 0.062 0.0115 0.082 0.0121 0.240 0.036 0.960 0.144 2011 0.142 0.010 0.080 0.010 0.910 0.129 0.960 0.124 2012 0.106 0.011 0.090 0.0115 1.000 0.125 1.010 0.090 2013 0.042 0.010 0.167 0.0115 0.430 0.0965 0.570 0.0865 2014 0.090 0.010 0.083 0.010 0.480 0.1185 0.440 0.052 2015 0.085 0.010 0.017 0.010 1.200 0.1195 0.410 0.0525 2016 0.128 0.010 0.042 0.010 1.200 0.570 0.960 0.410 2017 0.107 0.010 0.034 0.0105 0.610 0.195 0.670 0.1045 2018 0.063 0.010 0.113 0.0125 0.560 0.250 0.470 0.1030 2019 0.220 0.010 0.230 0.0105 1.040 0.189 0.690 0.1970 2020 0.043 0.010 0.032 0.010 0.730 0.047 0.620 0.0340 2021 0.079 0.010 0.092 0.010 0.420 0.138 0.210 0.0970
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