Environmental Sampling of Stockpile involves sampling of soil or aggregate prior to their placement at site. It is important to sample and carry out laboratory analysis of the stockpiled material to ensure that the material to be placed is non-contaminated or within the contamination threshold as documented by various environmental authorities or relevant Standard. Sampling material from stockpile can be challenging as the presence of the contaminants is being assessed from the small quantity of samples collected and it should be done with care and attention to detail. A bucket loader makes the process easier and assures a more representative sample. The loader can quickly extract material from a number of locations and elevations in the pile then combine and mix the portions in a smaller pile for direct sampling. For manual sampling, one should start at the top and take at least three increments from the top, middle, and bottom of the pile. Pushing a board into the uphill side of the sampling point prevents additional material from falling into the sampling area. Remove and discard the upper layer and collect the increments from the underlying material with a shovel or scoop. D75 also allows the use of sampling tubes to sample a stockpile at random locations. Carefully collect the entire contents of each shovel or scoop full into an appropriate container. 

Oz Geos has previously carried out sampling and testing of stockpiled material from various quarry and construction sites with great efficiency and attention. Our team of qualified technician and engineer can guide you throughout the procedure so that you can rely on our expertise and remove construction risks while you use the materials at your site.