[2023] NZEnvC 164 Waikato Regional Council v Rawhiti Environmental Park Limited [pdf, 258 KB]
...was discoloured and a muddy grey colour consistent with being contaminated with effluent. Environmental effects Piggery effluent is a contaminant and typically contains high concentrations of several important contaminants. In its undiluted form, the concentrations of several 10 of the contaminants would have severe adverse effects on aquatic ecosystems. In particular, concentrations of toxicant ammonia (ammoniacal-N), and the mixture of oxygen-depleting substances that cont...