Marlborough Sounds Resource Management Plan d) Batters and side castings are to be established by appropriate measures such as seeding, compacting, drainage and/or other methods of revegetation; e) Run-off from watertables or surfaces of side-cut excavations is to be directed to stable land areas; and f) Except for direct approaches to bridges, crossings and fords; maintenance of rail and public roads; and trenching for cable laying, no excavation or filling must take place within riparian management zones as specified in the schedule of water bodies and Table 1 in Appendix I and as mapped in Ecology Maps in Volume Three, or in a manner or location where the General Conditions for Land Disturbance above can not be complied with. 31.1.4.2.2 Fill Content In addition to compliance with the conditions relating to the volume of fill material any filling of land or depressions is a Non-Complying Activity where the fill contains: a) Putrecible, inflammable or hazardous components; b) Material other than rubble, ballast, stones, soily material and demolition material; or c) Vegetation which is not incidental to the clearing of sites, and which comprises more than 5% of the fill material, by volume. 31.1.4.2.3 Exemptions The following activities are exempt from control on the volume of material: a) Any works involving the repair or replacement of any utilities; and b) Support structures for any permitted or approved buildings, signs, fences and works. 31.1.5 Hazardous Facilities (District Function) 31.1.5.1 Effects Ratio Any activity having an ‘effects ratio’ no greater than 0.2 shall be a Permitted Activity. The ‘effects ratio’ shall be calculated in accordance with the Hazardous Facility Screening Procedure set out in Appendix C. 31.1.5.2 Site Design 31.1.5.2.1 Any part of the site where liquid or solid hazardous or environmentally damaging substances are stored or used shall be effectively sealed with materials which are resistant to the substance(s). 31.1.5.2.2 Any part of the site where liquid or solid hazardous or environmentally damaging substances are stored or used shall be sealed and bunded so that the equivalent of the maximum of the largest container within the bunded area could be contained and excluded from the stormwater system if a spill occurs. In areas where drums are stored, the bunded area shall be able to contain half of the maximum amount of the material stored. 31 - 6