Intrusive Site Investigation for Farm Land
In the case study highlighted below, the client required a Phase 2 Intrusive Site Investigation for a proposed housing development on farm land. The complex and varied use across the long and narrow site meant that our intrusive site investigation needed to include a targeted sampling strategy in order to appropriately sample the soil on the farm site while avoiding unnecessary costs from excessive sample taking. Our intrusive site investigation on the farm was able to conclude that the soil was uncontaminated and posed a low risk to human health and the environment.Get In Touch
What Does a Phase 2 Intrusive Site Investigation on a Farm Involve?
A Phase 2 Intrusive Site Investigation is carried out when a desk study identifies an unacceptable risk to human health or the environment from contamination e.g. activities from previous use as a farm. The desk study will inform the intrusive site investigation on the specific sources of contamination expected to be present at a site and the ways that they are expected to impact humans or the environment. The intrusive site investigation will then allow these potential risks to be quantified more accurately to determine whether the risk is considered to be acceptable.
On farm sites, intrusive site investigations are often needed to quantify the risk from things like fuel spillages and asbestos. Particularly on very old farm land, there are significant potential risks from spillages of fuel from old tanks in poor condition and from the release of asbestos fibres from dilapidated asbestos roof sheets. The risk from these contamination sources is often difficult to determine from a desk study alone as it's very site-specific and farm land can often have a long history with multiple owners. To more accurately determine the contamination risk on farm land, samples will need to be taken and assessed with reference to industry screening values. The results of laboratory testing of samples, along with assessment of the ground conditions at the site, are collated into an intrusive site investigation report that will determine whether there is an unacceptable risk to human health or the environment from land contamination.
Case Study Details for a Phase 2 Intrusive Site Investigation on Farm Land
Our client required an intrusive site investigation on farm land in Norwich for a proposed housing development. Contaminated land conditions were applied to the client's planning application which meant that a desk study needed to be carried out in order for the project to continue. The project involved building five new detached residential houses on farm land, also previously used as a small holding for farm machinery and various other materials. The desk study report identified potential risks, most notably, from hydrocarbon contamination of shallow soil in areas where farm machinery had been stored as well as asbestos contamination from asbestos roof sheets and, therefore, recommended that an intrusive site investigation should be carried out to quantify these risks.
The complex and varied use across the long and narrow site meant that our intrusive site investigation needed to include a targeted sampling strategy in order to appropriately sample soils on the farm, while avoiding unnecessary costs from excessive sample taking. On this farm land our sampling strategy involved a higher sampling density in the areas where more contamination was expected. Our intrusive site investigation also involved taking samples from 0.6m deep to account for the clearance of the top ~0.5m during site preparation while still representing shallow soil at the site, which was the area of soil most likely to be contaminated. As part of the intrusive site investigation, we also created borehole logs to describe the soil types identified in the holes that were dug on site to help assess the contamination pathways that could be present at the site. For example, sandy soil will allow vapours to easily migrate through the soil while clay soil is more impermeable and will often mitigate the spread of contamination through soil.
Through soil sampling and assessing the ground conditions at this farm site, our Phase 2 Intrusive Site Investigation was able to conclude that the soil on site was uncontaminated and posed a low risk to human health and the environment. This was then confirmed with the local council allowing the client's housing project to go ahead.
I Need an Intrusive Site Investigation for Farm Land
Whether it's to support a planning application or simply to ensure your farm land is uncontaminated, we can carry out Phase 2 Intrusive Site Investigations for a range of farm sites and other similar farm land projects.
1. Contact us and let us know your requirements
2. Following initial consultation we can provide an outline proposal detailing how we can help and the costs involved
3. Our environmental consultants will then carry out a Phase 2 Intrusive site investigation for your farm site
4. We can complete an Phase 2 Intrusive Site Investigation for farm land within days of your initial enquiry allowing you to stick to schedules and minimise any disruption to your project