4.—(1) No person shall discharge or cause or permit the discharge into the storm water drainage system of Total Suspended Solids in concentrations greater than 50 milligrams per litre of the discharge.(2) Every person carrying out earthworks or construction works shall comply with the Code of Practice and, in particular, with the following requirements:| (a) | earth control measures shall be provided and maintained in accordance with the Code of Practice; | | (b) | runoff within, upstream of and adjacent to the work site shall be effectively drained away without causing flooding within or in the vicinity of the work site; | | (c) | all earth slopes shall be set outside a drainage reserve; | | (d) | all earth slopes adjacent to any drain shall be close turfed; and | | (e) | adequate measures shall be taken to prevent any earth, sand, top-soil, cement, concrete, debris or any other material to fall or be washed into the storm water drainage system from any stockpile thereof. |
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