Marlborough Sounds Resource Management Plan Suitability of fish for human Shall not be rendered No numeric interpretation available consumption unsuitable by the presence of contaminants CR - WATER MANAGED FOR CONTACT RECREATION PURPOSES Visual Clarity Shall not be so low as to Horizontal sighting range of 200mm be unsuitable for bathing black disk shall exceed 1.6m during low flows. Contaminants Shall not render water Median concentration of enterococci unsuitable for bathing of at least 20 samples taken throughout the bathing season shall not exceed 33 per 100 mL, nor shall any sample exceed 107 enterococci per 100 mL. The bathing season is defined as the period of 1 November 10 to 1 April inclusive. Biological Growths Shall be no undesirable Refer Class AE growths Seasonal maximum cover of stream or river beds by periphyton as filamentous growths or mats (more than 3mm thick) shall not exceed 40%, and the biomass on the bed shall not exceed 100mg chlorophyll a/ m² NS - WATER MANAGED IN ITS NATURAL STATE Natural Quality Shall not be altered No numeric interpretation available SG - WATER MANAGED FOR THE GATHERING OR CULTIVATION OF SHELLFISH FOR HUMAN CONSUMPTI ON Temperature Shall not be changed by more than 3°C Dissolved Oxygen Shall exceed 80% of N/ A saturation Suitability of fish for human Shall not be rendered Median faecal coliform concentration consumption unsuitable by the of not less than five samples, taken presence of contaminants within any consecutive 30 day period, shall not exceed a Most Probable Number (MPN) of 14 per 100ml (or Colony Forming Units per 100ml), and not more than ten percent of samples taken within any consecutive 30 day period shall exceed and MPN of 43 per 100ml (or 43 Colony Forming Units per 100ml) as a result of any discharge of a contaminant or water. Samples shall not be taken on the same or consecutive days. DW - WATER MANAGED FOR DRINKING WATER QUALITY Contaminates Shall not render the • Faecal coliforms <1 CFU/ 100 water unsuitable for mls of sample human consumption • Ammonium <1.5 mg/ / • Iron <0.2 mg/ / • Nitrate <50mg/ / pH Shall be within the range N/ A 6.5 - 8.5 App H - 4