Volume Two 7. Coastal Living Zone 7.3.8.7. Wheeled or tracked machinery must not be operated in, or within 8m of, a river (except an ephemeral river or intermittently flowing river, when not flowing), lake, Significant Wetland or the coastal marine area. 7.3.8.8. On completion of a vegetation clearance, a suitable vegetative cover that will mitigate soil loss, is to be restored on the site so that, within 24 months the amount of bare ground is to be no more than 20% greater than prior to the vegetation clearance taking place. 7.3.8.9. The depth of topsoil removed must not exceed more than 20mm over more than 15% of any vegetation clearance site. 7.3.8.10. Woody material greater than 100mm in diameter or soil debris must: (a) not be left within 8m of, or deposited in, a river (except an ephemeral river or intermittently flowing river when not flowing), lake, Significant Wetland or the coastal marine area; (a) not be left in a position where it can enter, or be carried into, a river (except an ephemeral river), lake, Significant Wetland or the coastal marine area; (b) be stored on stable ground; (c) be managed to avoid accumulation to levels that could cause erosion or instability of the land. 7.3.8.11. Vegetation clearance must not cause any conspicuous change in the colour or visual clarity of a flowing river after reasonable mixing, or the water in a Significant Wetland, lake or the coastal marine area, measured as follows: (a) hue must not be changed by more than 10 points on the Munsell scale; (b) the natural clarity must not be conspicuously changed due to sediment or sediment laden discharge originating from the vegetation clearance site; (c) the change in reflectance must be <50%. 7.3.9. Excavation or filling. 7.3.9.1. Excavation or filling must not occur within 8m of the landward toe of a stopbank and the depth of any excavation must not exceed 20% of the distance between the landward toe of the stopbank and the excavation. 7.3.9.2. Excavation or filling must not be within a Level 2 or 3 Flood Hazard Area. 7.3.9.3. The maximum volume for excavation must not exceed 50m 3 per Computer Register within any 12 month period, unless the excavation is to establish the foundation for a building permitted in this zone. 7.3.9.4. The maximum volume for filling must not exceed 50m per Computer 3 Register within any 12 month period, unless the filling is to establish the foundation for a building permitted in this zone. 7.3.9.5. Excavation must not occur on any land with a slope greater than 10°. 7.3.9.6. Excavation must not intercept groundwater or cause any ponding of surface run-off. 7.3.9.7. Excavation and filling must not occur in, or within 8m of, a river, Significant Wetland, drainage channel or Drainage Channel Network. 7.3.9.8. Batters must be designed and constructed to ensure they are stable and remain effective after completion of the excavation. 7 – 7