Understanding the differences between structural fill dirt and topsoil is crucial for anyone involved in construction and landscaping projects. The success of these projects often depends on selecting ...

Coal ash, a byproduct of burning coal to generate power that contains an alphabet soup of toxic contaminants, has been used for decades in Indiana and across the U.S. as construction fill. Here's what ...

This exposed coal ash is on a steep slope that leads to the Bolin Creek greenway in Chapel Hill. Although fencing has been installed to capture any runoff and prevent people from accessing the ash, ...

Coal ash, what’s left over after coal is burned to generate electricity, is one of the largest waste streams in the U.S., with hundreds of millions of tons of it lying in hundreds of sites across the ...

This story originally appeared on Facing South, the online magazine of the Institute for Southern Studies. Coal ash isn’t just dumped; it’s increasingly being recycled into building materials and ...

Retired EPA scientist Larry Jensen has known about the radioactive risks of coal ash for years. He did a study more than 15 years ago in a northern Indiana town essentially built on the waste. Jensen ...

You can read the full EPA draft risk assessment report that address more than just structural fill (82 pages) or excerpts that are specific to that use (10 pages). We’ve annotated the second document ...