Volume Two 2. General Rules (a) hue must not be changed by more than 10 points on the Munsell scale; (b) the natural clarity must not be conspicuously changed due to sediment or sediment laden discharge originating from the activity site; (c) the change in reflectance must be <50%. 2.9.9.3. After reasonable mixing, the entering onto or passing across the bed of a river by the livestock must not result in a change in concentration of following: (a) daily average carbonaceous BOD due to dissolved organic 5 compounds (i.e. those passing a GF/C filter); (b) dissolved reactive phosphorus; (c) dissolved inorganic nitrogen; (d) Escherichia coli (E. coli). 2.9.10. Passive, informal or active recreation in, on, under, or over the bed of a lake or river. 2.9.10.1. Powered watercraft must be fitted with effective mufflers during all movement on water and must not exceed the following noise limits at any point within the notional boundary of any dwelling or within any land zoned Urban Residential 1, Urban Residential 2 (including Greenfields) or Urban Residential 3: (a) 7.00 am to 9.00 pm - Sound Exposure Level (SEL) 85 dBA; (b) 9.00 pm to 7.00 am the following day - Sound Exposure Level (SEL) 78 dBA; (c) no moving craft must emit noise in excess of a Sound Exposure Level (SEL) of 90 dBA in any single driveby measured at any stationary point more than 25m from the line of travel of the craft; (d) sound exposure levels must be measured in accordance with the provisions of NZS 6801:2008 Measurement of Sound. Note: Assessment of powered watercraft noise is not within the scope of NZS 6802:2008. 2.9.10.2. On four occasions in any 12 month period, the noise limits in Standard 2.9.10.1 do not apply for any portion of lake or river used for the purposes of a special event approved by a resource consent. 2.10. Discretionary Activities Application must be made for a Discretionary Activity for the following: [R, D] 2.10.1. Any activity provided for as a Permitted Activity that does not meet the applicable standards. [R. D] 2.10.2. Any activity in, on, under or over the bed of a lake or river not provided for as a Permitted Activity or limited as a Prohibited Activity. 2 – 15