List of Contributions

This is a complicated topic and requirements vary substantially by region, local conditions, and the intent of the project. Most of the commonly available literature is very general in its recommendations. Can you provide a little more context for your request? I strongly recommend seeking out a ...

​I'd like to emphasize again, particularly in southeastern PA, stormwater from treated roadways and pavement surfaces should not be used for irrigation or infiltrated into soil. Salts are harmful to crops and soil in the long term and infiltrating salt into groundwater increases salinity of streams year-round, ...

Do you have a particular context in mind? Pollution in stormwater is a concern for some uses - for example, street runoff in winter in southeast Pennsylvania tends to have high concentrations of road salt, and infiltrating that into the ground contaminates both groundwater and stream flow with salt ...

I laid out the conceptual design for a natural pool a​ few years ago, although the client chose not to proceed, partly out of fear of the problems reported in Minnesota. Ongoing, reactive maintenance and planting design are critical components of designing a successful natural pool, as well as a willingness ...

​I want to caveat again - infiltrating water at the ground level and including runoff from streets and sidewalks in northern climates risks infiltrating deicing salts into groundwater. I believe this issue requires more consideration in project planning than it currently receives. Rooftop water is generally ...