After groundwater tests detected lithium and selenium leaching from a 60-acre landfill, Xcel is set to evacuate 2+ million tons of legacy coal ash and repurpose it into cement for the Denver market. (Denver Post)
The $24 million, 10-year project marks a first-of-its-kind reuse strategy in the state. Reverse osmosis will treat contaminated groundwater, while real-time air quality and dust control remain under review.