Dr Harriet Carlyle is a chartered geologist with more than 20 years postgraduate experience in hydrogeology, primarily in water resources but also in contaminated land and waste management. She is currently a technical manager with Sweco (formerly Grontmij), managing the groundwater resources team. Previously she held positions with Earth Tech, Golder Associates and KBR, the latter including long-term secondments to Yorkshire Water. Harriet’s experience covers all aspects of groundwater development, management and protection in both the public and private sectors. Her technical expertise includes yield and quality studies, economic evaluation, borehole construction, rehabilitation and abandonment, EIA (to support planning applications as well as abstraction licensing) SEA, mitigation of water treatment issues and quantitative risk assessment.