BMP and LID Whole Life Cost Tools
In partnership with the U.S. Environmental Protection Agency (U.S.
EPA), WERF has developed a new suite of
tools to address the costs associated with vegetative roofs,
rainwater catchment systems, and bioretention facilities. These tools
provide a framework to facilitate cost estimation for capital costs,
operation and maintenance costs, and life-cycle net present value. The
tools can serve as a format for cost reporting for past, current, and
future projects. They also provide users with planning-level cost
These tools complement an existing suite of BMP whole life cost
models for retention ponds, extended detention basins, swales, and
permeable pavement developed under a previous WERF project. To access
the complete set of tools and accompanying user’s guide, visit www.werf.org/bmpcost.