Use of a Constructed Reedbed Wetland in the Mitigation of Highway Runoff on the Ground-water Quality in a Carbonate Rock Area

摘要

The project was designed to evaluate the potential for collecting and treating highway and parking lot runoff in an area underlain by carbonate rock. The project was performed in cooperation with the Pennsylvania Department of Transportation (PennDOT), under the Transportation Enhancement Program in compliance with the Intermodal Surface Transportation Efficiency Act (ISTEA) of 1991. Three major elements of the project were: (1) the collection of data on the quality of stormwater runoff from highways crossing carbonate areas; (2) the evaluation of the feasibility of constructed wetlands to mitigate any adverse water quality effects due to highway runoff; and (3) the development of criteria for the design and installation of wetland treatment systems for highway runoff.