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.
Technical Articles
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.
National regulation and guidance for PFAS – The PFAS NEMP
iEnvi receive frequent requests from clients to help manage disposal of impacted materials, products, land or groundwater contaminated by per- and poly-fluoroalkyl substances…
NSW Duty to Report Contamination under the Contaminated Land Management Act 1997
The NSW EPA released new Guidelines on the Duty to Report Contamination in July 2015, replacing the 2009 version.