Volume Two 2. General Rules 2.17.5.4. The discharge must not contain any marine risk organism. 2.17.5.5. There must be no emission of objectionable odour. 2.17.5.6. Any pH change or increase in the deposition of matter on the foreshore must not have any significant adverse effect on aquatic life. 2.17.6. Discharge of stormwater to water from Lots 1 & 2 DP 323372, Lots 1, 3 & 4 DP 8762, portions of Lot 1 DP 4447, Lot 9 DP 306716 and Lot 2 DP 379514 the Riverlands. 2.17.6.1. Unsealed downpipe roof water must be disposed of into a Council operated stormwater system expressly designed for this purpose. 2.17.6.2. Sealed down pipe roof water must be discharged into the Co-op Drain. 2.17.7. Discharge of swimming or spa pool water to water. 2.17.7.1. A public sewer is not located within 30m of the lot boundary or 60m of the pool discharge point. 2.17.7.2. Filter backwash water must not enter any stormwater system. 2.17.7.3. Fourteen days prior to discharging to land, swimming or spa pool water: (a) must be uncovered; (b) must not be treated with any chemicals. 2.17.7.4. The temperature of the discharge water must be ambient. 2.17.7.5. The discharge must not contain residual chlorine or bromine above detection levels. 2.17.8. Discharge of water to water for the purposes of purging water supply infrastructure or in emergency circumstances. 2.17.8.1. The discharge must be conducted by the Marlborough District Council. 2.17.9. Discharge of tracer dye to water. 2.17.9.1. The discharge must be conducted by the Marlborough District Council. 2.17.10. Discharge of water to water in Open Space 4 Zone for the purposes o f snow making. 2.17.10.1. The discharge of water must only be from the snow making process. 2.17.10.2. The artificial snow discharged must only consist of water. 2.17.11. Discharge of an agrichemical to water for the control of aquatic vegetation in the Drainage Channel Network or the Floodway Zone. 2.17.11.1. The discharge is only permitted when carried out by the Marlborough District Council exercising its functions, duties and powers under the Soil Conservation and River Control Act 1941, the Land Drainage Act 1908 and in accordance the Marlborough District Council Rivers and Drainage Asset Management Plan, and the Marlborough District Council Marlborough Rivers Gravel Extraction Strategy. 2.17.11.2. The agrichemical must be undertaken in accordance with the most recent product label. 2.17.11.3. The agrichemical must be approved for use under the Hazardous Substances and New Organisms Act 1996 and the use and discharge of the substance is in accordance with all conditions of the approval. 2 – 25