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웹1. Alteration to existing sanitary plumbing in a building, provided that: (a). the total number of sanitary fixtures in the building is not increased by the alteration; and. (b). the alteration does not modify or affect any specified system. 2. Subclause (1) does not include an alteration to a water heater. 4.6 Minor alteration to drains Previous. 웹2024년 5월 25일 · Drainage management is an intrinsic component of successful and sustainable agriculture in most regions throughout New Zealand. Historically, extensive … 웹When puddles reach a predetermined size they drain into a system of shallow channels and culverts cut into the parking surface and run off into tidal sedimentation basins. Mangroves trap anoxic sediment and prevent trace metals and contaminants from entering groundwater and waterways. street works permit refusal codes