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Parliamentary Questions


Question Without Notice No. 613 asked in the Legislative Council on 16 August 2018 by Hon Dr Steve Thomas

Parliament: 40 Session: 1

DEPARTMENT OF WATER AND ENVIRONMENTAL REGULATION —LANDFILL WASTE CLASSIFICATION AND WASTE DEFINITIONS

613. Hon Dr STEVE THOMAS to the Minister for Environment:

I refer to question without notice 568, asked on 14 August, on the landfill waste classification and waste definitions.

(1) Were the maximum concentration and leaching test levels taken from any specific document; and, if so, what document?

(2) Did the Department of Water and Environmental Regulation determine its own levels based on the various documents referred to as the list of sources in question without notice 568, but without using any specific reference or set of references?

(3) Did the department make up its own figures?

Hon STEPHEN DAWSON replied:

I thank the honourable member for some notice of the question.

(1) No.

(2) The Department of Water and Environmental Regulation considered all the source documents provided in response to question without notice 583, in the development of maximum concentrations—thresholds—detailed in table 6 of the ''Landfill Waste Classification and Waste Definitions 1996''. A comparison was undertaken on the parameter criteria in all these source documents with background levels for the Swan coastal plain to select the threshold for each parameter.

(3) No. See the response to (2).