25 October 2004
Rain Barrels and Cisterns: Containers of various sizes that store the runoff delivered
through building downspouts. Rain barrels are generally smaller structures, located
above ground. Cisterns are larger, are often buried underground, and may be
connected to the building's plumbing or irrigation system.
Soil amendments: Minerals and organic material added to soil to increase its capacity
for absorbing moisture and sustaining vegetation.
Tree Box Filters: Curbside containers placed below grade, covered with a grate, filled
with filter media and planted with a tree in the center.
Vegetated Buffers: Natural or man-made vegetated areas adjacent to a water body,
providing erosion control, filtering capability, and habitat.
Vegetated Roofs: Impermeable roof membranes overlaid with a lightweight planting mix
with a high infiltration rate and vegetated with plants tolerant of heat, drought, and