The research work is part of the Stormwater and Mosquito Control Project. The research project aims at the synthesis of various geospatial datasets, (e.g., soil hydrology, current and future land cover, and climatic variables) to develop a national index for the potential of adopting green infrastructure (GI) across urban areas in the US. The main challenge is developing a methodology that accounts for the variable degrees of uncertainty associated with each of the geospatial datasets. Currently, the project team made progress in estimating, in a spatially distributed fashion, the change in surface run-off between the pre-urban development and post development conditions.