Volume Two 3. Rural Environment Zone 3.3.12.11. 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%. 3.3.13. Cultivation. 3.3.13.1. On all slopes greater than 20° cultivation must be parallel to the contour of the land; except that up to 15% of the cultivated area may be cultivated at an angle to the contour. 3.3.13.2. On all slopes greater than 10° cultivation must not be within 8m of a river (except an ephemeral river, or intermittently flowing river when not flowing), lake or coastal marine area. 3.3.13.3. On all slopes less than or equal to 10° cultivation must not be within 3m of a river (except an ephemeral river, or intermittently flowing river when not flowing), lake or coastal marine area. 3.3.13.4. Cultivation must not be in, or within 8m of, a Significant Wetland, except where the wetland is fenced in accordance with the wetland boundaries mapped in the Plan, in which case cultivation may occur up to the fenced boundary. 3.3.13.5. On completion of the cultivation, a suitable vegetative cover that will mitigate soil loss, must 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 cultivation taking place. 3.3.13.6. Cultivation must not cause any conspicuous change in the colour or visual clarity of a flowing river after reasonable mixing, or 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 cultivation site; (c) the change in reflectance must be <50%. 3.3.14. Excavation. 3.3.14.1. Excavation in excess of 1000m 3 must not occur on any land with a slope greater than 20° within any 24 month period. 3.3.14.2. Excavation must not occur on any land with a slope greater than 35°. 3.3.14.3. Excavation must not be in, or within: (a) 8m of a river (except an ephemeral river when not flowing), lake or the coastal marine area; (b) 8m of a Significant Wetland or 30m of a river within a Water Resource Unit with a Natural State classification; 3 – 17