Contaminated Land

Contaminated Land services such as remediation and human health risk assessment are increasingly required by both industry and property developers as more is understood about the risks from contaminated land, and regulations become more stringent.

Remediation of an industrial site may be required when an Environmental Permit is surrendered, or following an accidental release of pollutants to land.

Remediation is often required on brownfield sites in order to obtain Planning Permission and develop the site.

Contaminated land projects for planning usually require an initial ground investigation, followed by a human health risk assessment typically using the Contaminated Land Exposure Assessment (CLEA) model, and then remediation and validation where necessary.

The CLEA model calculates target concentrations above which the contaminant may pose a risk to human health: essentially they equate to basic remediation clean-up standards.  The more vulnerable the future occupants, the lower the target concentrations will be.  A human health risk assessment is not usually required for remediation under Permit, as the remediation target concentrations are derived from the initial baseline site condition.

Remediation can vary from removal of all contaminated materials, through using various chemical and biological treatments for contaminated soil and groundwater, to leaving contamination in place and containing it, or monitoring its dispersion (Monitored Natural Attenuation).  Remediation timescales can take anything from several days or weeks to several years, and costs can be dramatically different depending on the type of techniques used.

There are so many remediation techniques available, from many different remediation companies, that it is important to understand your site properly before choosing an appropriate technique or suite of techniques for your site’s circumstances.

TT Environmental Ltd has the skills and breadth of experience to provide reliable advice applicable to a wide range of situations. Our team dovetails the disciplines of contaminated land, geology, hydrogeology, soil science and chemistry to provide tailored and comprehensive solutions to your problems.

If you need help with Contaminated Land, contact Janet on 01422 24 22 22 or email Janet.