Volume Two 2. General Rules [R, D] 2.12.10. Discharge of an agrichemical into or onto land for the control of terrestrial vegetation. [R, D] 2.12.11. Discharge of an agrichemical to water for the control of aquatic vegetation. 2.13. Standards that apply to all permitted activities 2.13.1. General. 2.13.1.1. No refuelling or fuel storage or the storage or placement of any hazardous substance including but not limited to oil, hydraulic fluid or other fluid lubricants must take place within 20m of water. 2.13.1.2. The activity must not cause flooding or erosion of private land. 2.13.1.3. The activity must not be in, or within 8m of, a Significant Wetland. 2.14. Standards that apply to specific permitted activities Unless expressly limited elsewhere by rule a in the Marlborough Environment Plan (the Plan), the following activities shall be permitted without resource consent where they comply with the standards: 2.14.1. Rock or gabion structural bank protection works. 2.14.1.1. Rock may be used for protecting drainage channel banks. 2.14.1.2. Rock from damaged or redundant structures may be recovered from a drainage channel. 2.14.1.3. Motor vehicle bodies, old machinery and scrap iron must not be used for bank protection works. 2.14.1.4. Placement of rock rip-rap in a tidal area must not take place between 1 August and 30 November in any year. 2.14.2. Driving and construction of a piled retard. 2.14.2.1. A piled retard may be used in conjunction with tree planting as bank edge protection. 2.14.2.2. A piled retard must only be used where there is adequate channel width and the retards are likely to aggrade with sediment to form a new drainage channel bank. 2.14.2.3. A piled retard may be used as a debris arrestor in front of a culvert provided that fish passage is not obstructed. 2.14.3. Lining of a drainage channel with timber or concrete for hydraulic efficiency or bank structural stability reasons where the channel is of limited width. 2.14.3.1. Concrete lining must not be constructed when there is water flowing in the channel. 2 – 19