The National Environment Protection Measures (NEPM) are a nationally consistent approach to assessing site contamination.
The National Environmental Protection (Assessment of Site Contamination) Amendment Measure 2013 (No 1) clarifies definitions, extraction methods and reporting fractions for hydrocarbon analyses of samples from contaminated sites.
NEPM defines how the concentration of each fraction is determined, for example:
The National Measurement Institute can help you meet your reporting requirements against the National Environment Protection (Assessment of Site Contamination) Measures.
Request the NEPM TRH–silica test when you suspect samples contain significant levels of non-petroleum based interferences (i.e. trade waste, soils with high organic content). The report from this test includes the semi-volatile fractions from >C10–C40.
We are Australia’s peak measurement body and offer:
These are the minimum concentration that we can be reliably detected in our laboratories.
|TRH||NMI method||Limit of reporting for soil (mg/kg)||Limit of reporting for water (µg/L)|
|TRH C6–C10 less BTEX (F1)||NGCMS_1121||<25||<25|
|TRH >C10–C16 less Naph (F2)||NGCMS_1112||<50||<25|
|TRH >C16–C34 (F3)||NGCMS_1112||<100||<100|
|TRH >C34–C40 (F4)||NGCMS_1112||<100||<100|
Our standard turnaround time is 5-30 days.
We also offer 1, 2 and 3 working day turnaround times where agreed.
Find out how to submit your environmental testing samples.
Contact us for a quote or to discuss how we can tailor our services to meet your analysis requirements.
Last updated: 25 November 2021
Content ID: 64594