20 August 2015 Chapter 34 - Marina Zone 34.4.2.2 Structures Which Impound or Effectively Contain the Coastal Marine Area 34.4.2.2.1 Any activity involving the erection of a structure or structures which will impound or effectively contain more than 4 hectares, of the coastal marine area is a Discretionary Activity. 34.4.2.3 Structures in the Coastal Marine Area More or Less Parallel to Mean High Water Springs 34.4.2.3.1 Any activity involving the erection of a structure or structures: • which are solid (or present a significant barrier to water or sediment movement); • when established on the foreshore and/or seabed would extend 300 metres or more in length more or less parallel to the line of mean high water springs (including separate structures which incrementally total at least 300 metres, contiguously); is a Discretionary Activity. 34.4.2.4 Structures in the Coastal Marine Area Oblique or Perpendicular to Mean High Water Springs 34.4.2.4.1 Any activity involving the erection of a structure or structures: • which is solid (or presents a significant barrier to water or sediment movement); and • which is sited obliquely or perpendicular to the line of mean high water springs in the coastal marine area; and • which in horizontal projection is more than 100 metres; is a Discretionary Activity. 34.4.2.5 Structures in the Coastal Marine Area used in the Petroleum and Chemical Industry 34.4.2.5.1 Any activity involving the erection of structures for the storage or containment of any petroleum, petroleum products, or contaminants is a Discretionary Activity. 34.4.2.6 Assessment Criteria for all Structures a) Whether the structure is necessary; b) Whether the final appearance will harmonise with the character of the surrounding landscape; c) Whether the structure has made allowance for the effects of sea level rise, waves and currents and earthquakes; and d) Whether the structure has any significant adverse effect on ecological values and tangata whenua values. 34.4.2.7 Disturbance of Foreshore and/or Seabed Including any Removal of Sand, Shell or Shingle or Other Material 34.4.2.7.1 Any activity involving, in any 12-month period, disturbance of foreshore and/ or seabed for specific purposes, including any removal of sand, shell or shingle or other material which is: • in volumes greater than 50,000 cubic metres; and • extracted from areas of greater than 4 hectares; and 34 - 21