Contaminated land contains substances that are hazardous or potentially dangerous to human health or the environment. Industrial production sites are known as brownfield land and these areas can be heavily affected by chemical and oil spills, waste disposal, mining and other industries. Contamination can also come about naturally due to the geology of the area, or if the plot has been used for agriculture.
Contaminated earth isn’t always visible to the naked eye, but it is worth digging a few trial holes. If discoloured soil that smells potent is discovered, then it’s possible that this patch is contaminated. Contamination can darken the soil. Even when contamination levels on a site are low, there is still a risk. Some chemicals may not be directly harmful to humans, but they can prove destructive to the environment.
Assessments will be carried out to determine contamination levels
Environmental consultants will carry out assessments in different stages to ascertain the level of contamination. These will include a desktop study and an investigation report on the site, which includes analysis of the soil. A strategy for remediation will also be carried out, as well as validation and certification.
There are companies which will help clients to understand the nature and extent of contamination. A soil remediation service, such as https://soilfix.co.uk/services/groundwater-soil-remediation-services, will assess the potential risks posed to human health and the environment.
According to News12 the process of soil remediation is underway in Fairfield in the Bronx after contaminants were found.
Samples of soil will identify contaminants present
A study may recommend a report which will involve a survey and taking samples to identify chemicals in the soil as well as the levels of concentration and whether or not they are mobile. The remediation plan is usually carried out by a specialist contractor. That report may suggest that monitoring of the soil indefinitely is required.
Other solutions will include the removal of the contaminated soil or biochemical treatment which will stabilise the contaminants. It also may be possible to flush contaminants out with water. For petrol hydrocarbons, a vacuum suction can be a solution.
Specialists will re-test the soil and carry out the certification after the process is completed. This verification will provide proof that treatment has been effective or that the site has been cleansed, restored and fit for purpose.