Benefits Toolkit

This broad analysis attempts to place an economic value on the numerous benefits provided by green infrastructure (defined here as a network of decentralized stormwater management practices). The report brings together current research on green infrastructure performance and presents methods for calculating related...

Topics

Stormwater management, Water conservation, Water quality, Flood protection, Energy use, Air quality, Temperature & urban heat island, Carbon sequestration & avoidance, Recreational & social value, Educational value, Property values, Other economic, Bioretention, Green roof, Permeable paving, Rainwater harvesting, Trees

Long-Term Hydrologic Impact Analysis

Local Government Environmental Assistance Network
2011

L-THIA estimates changes in recharge, runoff, and nonpoint source pollution resulting from past or proposed development. It estimates long-term average annual runoff for land use and soil combinations, based on community-specific long-term climate data. In the basic model, the only inputs are: location (state and...

Topics

Stormwater management, Water quality

Recycled Content (ReCon) Tool

U.S. Environmental Protection Agency
2010

This tool estimates the greenhouse gas (GHG) emission and energy benefits associated with increasing the recycled content of materials purchased or manufactured. The tool compares baseline recycled content for common materials – including  glass, wood, metals, plastics, paper, PVC, and fiberboard – to...

Topics

Energy use, Carbon sequestration & avoidance, Reused/recycled materials

Rainwater Harvesting Calculator

State of Washington Department of Ecology
2010

This Excel-based calculator was developed to help residents of Washington State size and test scenarios for rain water harvesting systems based on the typical climate. The calculator assumes that water is harvested entirely from roofs and that 80% of precipitation falling on roofs is captured. Inputs are the...

Topics

Stormwater management, Water conservation, Rainwater harvesting

SPAW Field & Pond Hydrology Model

USDA Agricultural Research Service and Washington State University Department of Biological Systems Engineering
2009

The SPAW (Soil-Plant-Air-Water) model simulates the daily hydrologic water budgets of agricultural landscapes with two connected modules, one for farm fields and one for impoundments such as wetland ponds, lagoons or reservoirs. The model was developed to understand and predict agricultural hydrology and its...

Topics

Stormwater management, Water body/groundwater recharge, Wetland

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