Notes

Outline

Slide 1

Isle of Thanet Groundwater Protection Issues: Groundwater and Contaminated Land Team Kent and East Sussex Area May 2009

Groundwater vulnerability on Thanet Key issues Nitrates Pesticides Solvents Hydrocarbons Groundwater Protection Working together / with external partners in the future Outline of talk

Groundwater use

Groundwater Vulnerability Thin soils

Groundwater Vulnerability Chalk – Principal aquifer

Groundwater Vulnerability Source Protection Zones

Groundwater Vulnerability Depth to watertable Varies from about 40 metres depth in centre of Thanet to 0 metres at springs feeding the Wansum Channel and the coast.

Groundwater Vulnerability Summary and use Depth of soil - thin Rock type – Chalk – principal aquifer Source Protection Zone / Proximity to river Depth to groundwater from surface – Unsaturated Zone

Nitrates - evidence

Nitrates - inputs Agriculture Horticulture

Pesticides – Evidence (insecticides, herbicides, fungicides, rodenticides and some biocides)

Pesticides - Inputs Agriculture Horticulture Transport / Infrastructure Urban – amenity and leisure Landfills and industry Private gardens

Solvents & hydrocarbons - evidence

Hydrocarbons – known inputs Investigations completed or clean-up still ongoing

Hydrocarbons  – potential inputs

Hydrocarbons – prevention of inputs

Solvent inputs

Way forward –  using existing initiatives and legislation

Industrial

Agriculture and horticulture

Transport routes

Amenity and Residential

Amenity and Residential

Planning- new and redevelopment - vital

"Discussion …" Discussion …