Soil contamination is caused by the presence of man made chemical alterations in naked ground.
This type of contamination typically results from the rupture of underground storage tanks, application of pesticides, percolation of contaminated surface water, oil and fuel dumping, leaching of waste from landfills or direct discharge of industrial waste to the soil. The most common chemicals involved are petroleum hydrocarbons, solvents, pesticides, lead and other heavy metals.
The concern over soil contamination stems primarily from health risks, direct contact with the contaminated soil, vapors from the contaminants, and from secondary contamination of water supplies within and under the soil. Many local residents have been witness to the level of activity involved in the clean up of contaminated sites. Mapping of contaminated soil sites and the resulting cleanup are time consuming and expensive tasks.
Local council and property builders sometimes use multiple site cleanup and remediation strategies, However the most economical technique often used is to excavate the soil from the affected area and take it to a disposal site which is authorized and approved by local council. The soil excavation technique also applies to dredging of bay mud which may contain toxins.
We have recently expanded our operations in this area and have worked on some significant site remediation projects.