The silt curtain shall be installed from the water surface to the seabed level and shall be regularly maintained in good condition throughout the dredging and other related underwater activities.

• 隔沙网须由水面伸延至海床，将挖泥作业范围完全围封，并为各项挖泥工程提供遮罩。隔沙网须在整个挖泥及其他相关水底作业进行期间，保持良好的状况。