At head of title: Environmental RTDI Programme 2000-2006.
Water framework directive : an investigation into the performance of subsoils and stratified sand filters for the treatment of wastewater from on-site systems (2001-MS-15-M1) : synthesis report by Laurence Gill. ISBN 1840951540. Published by Environmental Protection Agency in 2005. Publication and catalogue information, links to buy online and reader comments.