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Monitoring of the permeable pavement demonstration site at Edison Environmental Center
Citation:
ROWE, A. Monitoring of the permeable pavement demonstration site at Edison Environmental Center. Presented at 2010 International Low Impact Development Conference, San Francisco, CA, April 11 - 14, 2010.
Impact/Purpose:
To inform the public.
Description:
The EPA’s Urban Watershed Management Branch has installed an instrumented, working full-scale 110-space pervious pavement parking lot and has been monitoring several environmental stressors and runoff. This parking lot demonstration site has allowed the investigation of differences among side-by-side pervious asphalt, pervious concrete, and permeable interlocking concrete paver systems. The parking lot consists of three sets of parking rows, each one surfaced with a different pervious pavement type, and driving lanes surfaced with conventional asphalt. The pervious pavement parking areas have subsections lined with an impermeable liner to collect the infiltrating water as well as sections lined with a permeable geotextile liner to allow the filtered effluent to infiltrate the underlying soil. There are four impermeable and five permeable sections for each pervious pavement type, which allows for statistical analyses of collected data. The filtered permeable pavement effluent was collected and analyzed for a number of water quality parameters including: solids, pathogens, nutrients, metals, and semi-volatile organic compounds. The site was monitored for surface radiation in order to examine the urban heat island effect and data from the three permeable surface types and data from the impermeable conventional asphalt were compared. Thermistors were also installed at several depths throughout the permeable pavement and have been monitored in order to examine the temperature differences throughout the depth profiles of the different pervious pavement systems. Infiltration of stormwater through the various pervious pavement surfaces and subgrades was investigated. This poster will present these results and will compare and contrast the three permeable surface types.