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WATER SUPPLY (SAFETY AND RELIABILITY) ACT 2008 - SECT 346 Failure impact ratings for dams

WATER SUPPLY (SAFETY AND RELIABILITY) ACT 2008 - SECT 346

Failure impact ratings for dams

346 Failure impact ratings for dams

(1) A dam has, or a proposed dam after its construction will have, a category 1 failure impact rating if—
(a) a failure impact assessment for the dam states that the population at risk is 2 or more persons but not more than 100 persons; and
(b) the chief executive, under section 349 , accepts the failure impact assessment.
(2) A dam has, or a proposed dam after its construction will have, a category 2 failure impact rating if—
(a) a failure impact assessment for the dam states that the population at risk is more than 100 persons; and
(b) the chief executive, under section 349 , accepts the failure impact assessment.
(3) In this section—


"population at risk"
(a) means the number of persons, worked out under the failure impact assessment guidelines, whose safety will be at risk if the dam or the proposed dam after its construction fails; but
(b) does not include—
(i) a resident on the parcel of land on which the dam is situated; or
(ii) if the dam is situated at a workplace under the Work Health and Safety Act 2011 — a person at the workplace; or
(iii) if the dam is situated at a place that is a mine under the Mining and Quarrying Safety and Health Act 1999 or coal mine under the Coal Mining Safety and Health Act 1999 —a person at the mine or coal mine.