Hazardous substances are substances that can harm people, the environment or property. They could be highly flammable, explosive, toxic or poisonous.
Hazardous facilities (including stationary vehicles) are sites or premises where hazardous substances are stored, used or disposed of.
Several Acts of Parliament regulate the storage, use, transport and disposal of hazardous substances.
These include the Resource Management Act 1991 (RMA), the Hazardous Substances and New Organisms Act 1996 (HSNO) and New Zealand land transport legislation.
The RMA influences the location of hazardous substances and facilities, with the aim of avoiding, remedying or mitigating adverse effects on the environment, and human health and safety. This is done through rules in a District Plan.
HSNO sets out controls for hazardous substances, regardless of location, land use or quantity. This includes a classification system for hazardous substances, and minimum performance requirements for packaging and containers, labelling, testing, disposal etc.
HSNO classifies hazardous substances as substances:
(a) with one or more of the following properties
(i) explosiveness
(ii) flammability
(iii) a capacity to oxidise
(iv) corrosiveness
(v) toxicity (including chronic toxicity)
(vi) ecotoxicity with or without bioaccumulation; or
(b) which on contact with air or water generates a substance with any one or more of the properties specified in (a) above.
HSNO is currently in a transitional phase that may last into 2002.
The Land Transport Act 1998 and associated Rule: Dangerous Goods 1999 and NZ Standard 5433: 1999 – Transport of Dangerous Goods on Land regulates the transport of dangerous goods. This includes a classification system for dangerous goods, and requirements for packaging, labelling and signage of containers and vehicles. Every business involved in transporting hazardous substances must comply with these regulations.
The Local Government Act 1974 provides for the regulation of industrial discharges to the public sewer system through Bylaws. Any business that discharges waste to the sewer must check with the Council whether a trade waste permit is required under a Bylaw. Council's Solid Waste Management Plan addresses the disposal of solid wastes in the District.