Dewatering mineral workings may have an adverse impact on the water table in the surrounding area. Although dewatering for mineral extraction purposes is exempt from licensing under the Water Resources Act 1991, it may be controlled by conditions included in planning consents. Two sites are described where the planning authority has imposed conditions relating to groundwater control and recharge trenches have been constructed. The first is a site in the Midlands adjacent to a Site of Special Scientific Interest (SSSI) where the flora and fauna are dependent on a high water table. The second is a site close to a wetland area in West Yorkshire.