Methods for separation of sediment from storm water at construction sites.

Large construction sites, when exposed to rainfall, yield runoff which may transport an objectionable load of mineral solids from the site. This report discusses the nature and amount of solids which may be transported and reviews the primary and secondary methods which may be employed to remove the transported solids from the effluent water. Limited consideration is given to the settling basin as a primary treatment device but the principal focus is on the use and characteristics of modern, available, commercial equipment for the secondary treatment process necessary to remove fine mineral solid suspensions. Specific recommendations are made for equipment selection and for additional studies to more clearly characterize these selections for construction site use. The study is based on a review of published technical literature and from trade literature obtained from a wide solicitation of American manufacturers. (A.) (Microfiche)