Volume Two 13. Port Zone 13.3.10.5. There must be no contaminants released as a result of the activity, or from equipment being used for the activity. 13.3.11. Coastal recreation. 13.3.11.1. The activity must not involve occupation of the coastal marine area. 13.3.12. Geotechnical bore drilling for the purposes of investigation of sub-surface conditions. 13.3.12.1. The bore must be drilled by a Recognised Professional. 13.3.12.2. A copy of the bore log, including a grid reference identifying the bore location, must be supplied to the Council in a suitable electronic format within 20 working days of drilling of the bore. 13.3.12.3. On completion of the geotechnical investigation, the bore must be sealed or capped to prevent any potential contamination of groundwater. 13.3.13. Dredging and associated disturbance to the foreshore and seabed, to maintain water depth levels necessary for ship berthage and manoeuvring. 13.3.13.1. At least 10 working days prior to the commencement of activity, Maritime New Zealand and the Council must be advised in writing of the nature and duration of the intended works. 13.3.13.2. The depth of any seabed disturbance must be limited to the amount necessary to maintain water depth levels. 13.3.13.3. Dredged material must not be deposited within the coastal marine area. 13.3.13.4. The activity must not adversely affect navigational safety. 13.3.13.5. There must be no contaminants released from equipment being used for the activity. 13.3.14. Dredging, and associated disturbance to the foreshore and seabed, within the Port Zone at Havelock. 13.3.14.1. No more than 50,000m of foreshore and seabed material, including but not 3 limited to sand, shell or shingle (except live vegetation), must be removed by any person within a calendar year. 13.3.14.2. The purpose of the dredging must be to maintain the water depth level of a navigational channel. 13.3.14.3. At least 10 working days prior to the commencement of dredging activity, Maritime New Zealand and the Council must be advised in writing of the nature and duration of the intended works. 13.3.14.4. The depth of any seabed disturbance must be limited to the amount necessary to maintain water depth levels. 13.3.14.5. Dredged material must not be deposited within the coastal marine area. 13.3.14.6. The activity must not adversely affect navigational safety. 13.3.14.7. There must be no contaminants released from equipment being used for the activity. 13 – 9