Asbestos In Stockpiles of Soil
When is a Soil Stockpile ‘Waste’, and Can a Hotspot of Asbestos or ACM in a Stockpile be Removed and the Soil be reclassified?
Technical Articles
Blanks for the field and lab, what are they?
Blanks are artificial samples (made up of ultra-pure MilliQ water) used to trace sources of contamination which may be introduced to samples: During handling and transportation;…
Changes to AS1940: The storage and handling of flammable and combustible liquids
As contaminated land consultants, a large part of what we do involves the investigation and remediation of soil and groundwater that has been exposed to liquids that are…
Revision to the ANZG 2018 for Fresh and Marine Water Quality
The Australian and New Zealand governments have collectively established and promoted guidelines to manage both countries water quality for over 25 years.
Soil vapour active sampling
iEnvi has undertaken soil vapour sampling, using the implementation of the ASC NEPM, to identify potential risks of vapour intrusion regarding human exposure on various sites.
NSW Contaminated Land Management Act Compliance
The NSW Environmental Protection Agency (EPA) updated the Contaminated Land Management Compliance Statement in July 2018.
BEWARE: When Clean Fill isn’t Clean
BEWARE: Sometimes excavated natural material (ENM) or virgin excavated natural material (VENM) classification and reporting isn’t done right, or it is done correctly but other…
TOPA and PFAS Precursor Detection
One uncertainty regarding per‐ and polyfluoroalkyl substances ( PFAS) is the total oxidisable precursor assay (TOPA).
Construction Environmental Management Plans (CEMP)
Construction environmental management plans (CEMP) are basically the who, what, when and where of on-site environmental management during construction activities.
DNAPL Assessment and Remediation and Dry Cleaner Properties
Dense nonaqueous phase liquids (DNAPL) are a group of halogenated semi-volatiles, non-halogenated semi-volatiles, and halogenated volatiles with a greater density than water.