A major homebuilding project in Maryland is facing a multimillion-dollar penalty after residents spent years watching runoff from the site turn parts of the Gunpowder River a cloudy orange. State officials said the pollution was avoidable — and that nearby communities and ecosystems paid the price. According to The Baltimore Banner, Maryland has reached a settlement worth more than $4 million with D.R. Horton, its subsidiary Forestar Group, and …