War & Gold, page-188

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Robcc66

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27/04/17

15:28

Post #: 24304026
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Originally posted by mogga ↑

Here's some info from the EES

I guess the key will be - who inspects the soil.

My guess is that the EPA will be under some pressure to make sure they do it - especially since it has been established that there is a certain amount of PASS under about 25 m

MANAGING EXCAVATED MATERIAL

Construction of Metro Tunnel will generate an estimated two million cubic metres of excavated rock and soil.
During construction, there will be limited opportunities to re-use excavated clean fill as part of the project. As such, it will need to be removed from construction work sites and could be potentially re-used at other locations.
Materials that cannot be re-used due to contamination will be disposed of in line with Environment Protection Authority (EPA) Victoria and WorkSafe Victoria guidelines at appropriately licenced facilities.
In most cases, rock and soil excavated during construction will be removed from construction sites as quickly as possible. However short-term stockpile areas will be created at TBM launch sites and other major excavation sites in order to temporarily store materials that cannot be removed immediately. These stockpile areas will be carefully managed in line with EPA Victoria guidelines.

http://metrotunnel.vic.gov.au/planning/ees/geology-and-ground-conditions

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Yes it makes it interesting. Be interesting if someone has any experience in this area.

Maybe it's as simple as a few samples are taken to determine where normal soil ends and PASS starts, and then regular samples to determine continuity or not. Same samples could detect contamination. These guys do it every day so I'm sure the process is down pat. Difference this time might be greater adherence to process if the EPA are ramping up their compliance.

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War & Gold, page-188

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War & Gold, page-188

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