WWRC 96-19
Exploring the Use of Eleocharis Palustris and
Phyleum pratense to Filter Out Cu and Pb in Stormwater Runoff Entering the
Laramie River, Wyoming
Introduction
Pollutants rrom urban stormwater are a tureat to tne water quality or tne receiving
waters (Fulcher, 1994). In many places vegetation has been used to filter out contaminants
from sewage treatment plants, mine effluent and agricultural effluent Native and non-native
species of vegetation can also be used to help filter out heavy metal contaminants
entering the fluvial environment through storm sewer outflows (Ellis, J.B. et al. 1994 and
Startin, 1994). The objectives of this study are (1) to determine the dominant native and
non-native herbaceous riparian species growing in storm water gullies which discharge into
the Laramie River (2) to compare the uptake of Cu (Copper) and Pb (Lead) between two
species in a greenhouse experiment (3) compare how the metals are partitioned between
roots and shoots (4) to determine if the two species are suitable for revegetation of
disturbed areas within the storm sewer gullies. The study area consisted of two stormwater
outflow gullies which discharge into the Laramie River at Laramie, Wyoming. The
greenhouse experiment was conducted at the University of Wyoming Plant Soil and Insect
Sciences 30th Street Greenhouse in Laramie.
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