If the spray foam has dried, it’s going to be harder to remove. One method is to use oil and baking soda. Rub oil (cooking ...

Smiths Creek Landfill Director Matt Williams describes his journey to treat PFAS leachate and how he came to choose foam fractionation for his facility.

She is based in Washington. A version of this article appears in print on May 29, 2025, Section A, Page 9 of the New York edition with the headline: Israel’s Expanding Ground Offensive in Gaza.