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adamjarrett  
#1 Posted : Friday, May 25, 2018 9:41:25 AM(UTC)
adamjarrett
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Hi gang,

We have noticed that samples with a depth of 2m with exceedences are not being highlighted when put against NEPM 2013 EIL/ESLs. The guidelines do not specify if it's less than or equal to, but I believe this sample should be counted? In which case we would need to increase the Conditional_Depth_To to a value slightly larger than current values (ie 2.00000001 or something?)

In investigating this, I have also read in Schedule B1that the ESLs should be based on the top 3m of soil, whereas the download available from EScIS is from 0-2m. Could you please double-check this and advise?

Thanks.

NickT  
#2 Posted : Friday, May 25, 2018 11:04:36 AM(UTC)
NickT
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Hi Adam,

For the first part it sounds like when one of your depths = the upper or lower bound of an eviro standards depth range it is not highlighting the exceedances.  Is this correct?

For the second component, do you have a specific reference you can provide (document/page number/table number)?  If we've made a transcription error we will get this updated.

When we compile the standards, we do this based on specific values provided in the source document (ie. provided in the tables).  If there is a level of interpretation required, or you want to apply something differently to how it's compiled in the document, I recommend you seek advice from your internal environmental experts, and then customise the standards appropriately.

Thanks,

Nick

adamjarrett  
#3 Posted : Friday, May 25, 2018 2:09:52 PM(UTC)
adamjarrett
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Hi Nick,

Yes that's correct - the upper bound is not highlighting the exceedance when the sample depth matches the bound value.

For the Env Stds, page 4 (section 2.1.1) has the following:

2.1.1 Definitions

In this Schedule, the principal terms used are investigation levels and screening levels. Further explanations (and qualifications to their use) are provided in other Schedules to this Measure. Investigation levels and screening levels are applicable to the first stage of site assessment.

Ecological investigation levels (EILs) depend on specific soil physicochemical properties and land use scenarios and generally apply to the top 2m of soil.

Ecological screening levels (ESLs) for petroleum hydrocarbon materials broadly apply to coarse and fine grained soils and various land uses. They are applicable to the top 3m of soil.

adamjarrett  
#4 Posted : Friday, May 25, 2018 2:27:04 PM(UTC)
adamjarrett
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Hi Nick, Ignore the second part - the document you have on your website is different to the one I found by Googling for NEPM 2013 Schedule B1. The google result took me here: http://www.nepc.gov.au/s...nd-groundwater-sep10.pdf which is the draft. Thankfully the values you have are correct :) Sorry for the confusion.
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