environmentally sustainable

in relation to the provision of a municipal service, means the provision of a municipal service in a manner aimed at ensuring that—

(a)	the risk of harm to the environment and to human health and safety is minimised to the extent reasonably possible under the circumstances;

(b)	the potential benefits to the environment and to human health and safety are maximised to the extent reasonably possible under the circumstances; and

(c)	legislation intended to protect the environment and human health and safety is complied with;