He is also a graduate of the Academy of Professional Investigations where he obtained Edexcel s BTEC Advanced Private Investigation Level 3 Diploma in 2010.
2.
Various national standards for concentrations of particular contaminants include the United States EPA Region 9 Preliminary Remediation Goals ( U . S . PRGs ), the U . S . EPA Region 3 Risk Based Concentrations ( U . S . EPA RBCs ) and National Environment Protection Council of Australia Guideline on Investigation Levels in Soil and Groundwater.
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