Question regarding the use of potentially contaminated soil from the Forrestfield-Airport Link project on other infrastructure projects and the measures in place to prevent PFAS contamination at the storage site.

AnsweredQoN 1212Legislative Council
Asked
23 November 2022
Portfolio
Transport

QuestionView source ↗

FORRESTFIELD–AIRPORT LINK — SOIL
CONTAMINATION
1212. Hon Dr STEVE THOMAS to the Leader of the House
representing the Minister for Transport:
I refer to the minister's
answer to question without notice 1193 asked yesterday, 22 November.
(1) On what
specific infrastructure projects across Perth has Forrestfield–Airport
Link spoil been used?
(2) How much FAL
spoil has been used on each of those projects?
(3) Is there a physical
barrier under and/or around the spoil stored at the 777 Abernethy Road site to
prevent PFAS seeping into the environment beneath the stockpile?
(4) Is the
storage site at 777 Abernethy Road lined or double-lined to prevent PFAS
leaching into the ground or groundwater?

AnswerView source ↗

I thank the honourable member for
some notice of the question.
(1)–(2) At
NorthLink, approximately 30 000 cubic metres have been used; at Kenwick rail
freight facility, approximately 120 000
cubic metres; and at Forrestfield–Airport Link, approximately 160 000
cubic metres.
Beneficial re-use of approximately
250 000 cubic metres of soil on the Great Eastern Highway bypass interchanges
project has recently commenced.
(3)–(4) The
concentrations of PFAS in the soil are below the human health and ecological
assessment criteria in the PFAS national environmental management plan .

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