Tag: Green Design


EPA Issues Drinking Water Health Advisories for PFOA and PFOS

In May 2016, EPA released drinking water health advisories for Perfluorooctanoic Acid (PFOA) and Perfluorooctane Sulfonate (PFOS). For many years, these chemicals were widely used in carpets, clothing, fabrics in furniture, food packaging, and other materials (e.g., cookware) to make them more resistant to water, grease, and stains. They are also used for firefighting at […]


Using Worms to Treat Wastewater?

Traditional methods of treating wastewater – such as an activated sludge plant – have been refined over time to become very effective. A typical activated sludge plant will include screening, sedimentation, aeration, clarification, disinfection, and sludge processing. Correctly size and situate the tanks, and the regulatory authority will have no problem approving the design. If […]


Proposed Changes to MSD Green Infrastructure Design Manual

The Louisville Metropolitan Sewer District (MSD) has posted its 2016 Proposed Green Infrastructure Design Manual for public comment and is soliciting feedback on the document from local and regional stakeholders and experts. The document is available for download from MSD’s Green Infrastructure webpage. For those familiar with the prior manual (also available from the webpage) […]