Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Performance of Gravel Bed Wetlands in the United States.
Author Reed, S. C. ; Brown, D. S. ;
CORP Author Environmental Engineering Consultants, Norwich, VT.;Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.
Publisher 1994
Year Published 1994
Report Number EPA-68-C0-0027; EPA/600/A-94/167;
Stock Number PB94-210606
Additional Subjects Subsurface flow ; Gravel ; Wetlands ; Water pollution control ; United States ; Municipalities ; Surveys ; Residential buildings ; Sites ; Removal ; Biochemical oxygen demand ; Nitrogen ; Operations ; Flow rate ; Performance evaluation ; Standards ; Waste treatment ; USEPA ; Tables(Data) ; Constructed wetlands ; Total suspended solids ; Organic loading
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
NTIS  PB94-210606 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 11/11/1994
Collation 20 p.
Several hundred gravel bed, or subsurface flow (SF) wetland systems exist in the United States ranging in size from single family dwellings to municipal systems designed for flows up to 11,000 cu m/d. Most of these systems have been constructed in the period 1988 to 1992 without the benefit of a consensus on design, construction or operational procedures. The U.S. Environmental Protection Agency (EPA) commenced a continuing series of studies in 1989 to identify the critical issues and to develop appropriate process criteria for this concept. These efforts have included a detailed survey, on-site visits and performance evaluations, and special data collection and evaluation programs at selected sites. The focus of the paper is on the capability of these systems to remove biochemical oxygen demand (BOD5), total suspended solids (TSS), and ammonia nitrogen (NH3 as N), since these are the major water quality parameters controlled by the regulatory agencies in the U.S.