Chapter 33 - Port Zone c) There shall be no undesirable biological growths as a result of any discharge of contaminant into the water; d) Aquatic organisms shall not be rendered unsuitable for human consumption by the presence of contaminants; and e) Any pH change, increase in the deposition of matter on the foreshore or seabed or discharge of contaminant into water shall not have any adverse effect on aquatic life. 33.1.6.4.2 Stormwater Discharges (Point Source and Non Point Source) 33.1.6.4.2.1 Point Source Stormwater 33.1.6.4.2.1.1 For a period extending five years from the date the Plan becomes operative, any existing, lawfully established discharge of point source stormwater into water in the coastal marine area is a Permitted Activity. 33.1.6.4.2.1.2 After this time the discharge of point source stormwater into the coastal marine area shall be a Controlled Activity 33.1.6.4.2.2 Non Point Source Stormwater The discharge of non point source water to land or any natural water shall be a Permitted Activity provided that: a) The discharge shall not cause any significant erosion of land; b) The discharge shall not have any significant effect on water quality; c) The discharge shall not have any adverse effect on any fisheries, wildlife habitats or recreational values of any waterbody; d) The discharge does not contain stormwater from an area where hazardous substances are stored unless: - Hazardous substances cannot enter the stormwater; or - There is an interceptor system in place to collect hazardous contaminants or diverted contaminated stormwater to a trade waste system. e) The above provisions do not apply to the drainage of naturally occurring wetlands or lakes. 33.1.7 Ship Building, Repairs and Maintenance Ship building repairs and maintenance is a Permitted Activity provided that the activity does not cause contaminants to be discharged into freshwater, coastal water or deposited on the foreshore or seabed. 33.1.8 Hazardous Facilities (District Function) Advisory Not e: For the avoidance of doubt, the controls in this section or in Appendix C are not applicable to the transportation, storage and use of hazardous substances as cargo or fuel in ships, trains and other ‘moveable’ sources in terms of section 15(2) of the Resource Management Act, unless subject to other specific rules in the Plan. 33.1.8.1 Effects Ratio 33.1.8.1.1 Any activity having an ‘effects ratio’ no greater than 1.0 shall be a Permitted Activity. The ‘effects ratio’ shall be calculated in accordance with the Hazardous Facility Screening Procedure set out in Appendix C. 33 - 13