Lighting Assessment WAI-985-000-REPLC-0019_Rev 0.Docx Waihi North Project 21/06/2022 Assessment of Environmental Effects: Lighting REVISION: 0 - Final EXECUTIVE SUMMARY Pedersen Read have been asked to undertake an assessment of environmental effects (AEE) for the artificial lighting associated with the proposed Waihi North Project (WNP) at the Oceana Gold (New Zealand) Limited (OGNZL) Waihi Mine, in the Hauraki District of the North Island. The assessment has been based upon the descriptions of the project provided in the Mitchell Daysh Limited Sub-Assessments of Environmental Effects, and various visual simulations and reports. Refer to Appendix A: “Bibliography” for the list of documents and activities that have informed the review. The proposed lighting has been assessed against the Hauraki District Plan Rules for “Glare and Lighting”, and Australian and New Zealand Standard AS/NZS 4282: 2019, “Control of the obtrusive effects of outdoor lighting”. AS/NZS 4282 is an applicable standard against which to assess potential lighting effects in a rural environment. The impact of artificial lighting on the night-time environment can be characterised by the following effects, spill light, glare, and sky glow. These are defined by AS/NZS 4282: 2019 as: • Spill Light: “Light emitted by an installation that falls outside of the design area. Spill light may or may not be obtrusive depending on what it effects”. • Glare: A “Condition of vision in which there is discomfort or a reduction in ability to see, or both, caused by an unsuitable distribution or range of luminance, or to extreme contrasts in the field of vision”. • Sky Glow: “The brightening of the night sky that results from radiation (visible and nonvisible), scatter from the constituents of the atmosphere (gaseous, molecules, aerosols and particulate matter), in the direction of observation”. In all WNP situations, direct spill light should be able to be contained to comply with the Hauraki District Plan requirement for a maximum of 8.0 lux (lumens per square metre). The possible exception being lighting to the intersection between the public section of Willows Road and the Willows Road Surface Facilities Area (SFA) site entry gate where a streetlight(s) installed for safety may exceed the 8.0 lux spill on the road. The extent, if any, of spill light will depend on the proximity of the entry gate to the road. Direct light spill would be very localised to the lighting pole(s) with effects minimised by the use of flat-glass (zero upward component) luminaire(s), backlight shielding (if required), appropriate luminaire orientation, and the use of 3000K LED technology.
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