Please see the following invite from Professor Alexandra Rempel at the University of Oregon to participate a 15-20 minute phone/Zoom interview and share your experience and/or perceptions on the problems, challenges, and barriers to incorporating into your projects.

This effort is part of an NSF research grant that I am involved in and... Read more

Tamela Olp Jun

Hi SDL'ers, as promised I am sending information about how to support getting flame retardants out of foam insulation. I am attaching a draft letter to Foam Manufacturers, an intro to that letter giving some background and a list of From manufacturers.   Thanks, please contact if you have any questions.   Larry Strain, Siegel & Strain... Read more

CEUs are available for reading our entire plumbing guide. Click here to learn more and take the quiz.

Constructed wetlands and other natural filtration systems close the nutrient and water loop, permitting safe and sustainable wastewater treatment and reuse right on the site.

We look for... Read more