Bioretention performances on pollutant removal have been studied extensively, but relatively few have examined soil development in the context of stormwater capture. This research is part of a collaborative NSF RAPID grant where one Greenstreet (a type of bioretention systems) and two comparison control sites were instrumented for long term in-situ data and sample collection.  The Greenstreet site receives street runoff from a catchment area of 223.5 m² while a control site, about 0.4 miles away, only receives direct precipitation.  The second control site is within an urban forest with relatively undisturbed land use and tree canopy. While hydrological monitoring and preliminary biological data collection have been mainly conducted by a research team from Drexel University, Brooklyn College researchers have focused on water and soil chemistry of the three sites.  Precipitation, runoff, and subsurface water samples have been collected during multiple rain events to evaluate chemical inputs to the systems and to determine pollutant and nutrient removal efficiency. Soil samples were taken at various depths of the soils profiles over the course of one year to establish baseline conditions and to evaluate the short term changes in the soils. The soil and water chemistry will be evaluated in combination with hydrological and microbiology information to help better understand the biogeochemical and physical processes operating in the bioretention systems, and help develop an integrated model for pollutant fate and transport.