GREELEY, Colo. (AP) — A Colorado court has overturned Weld County's approval of a $20 million concrete and asphalt plant currently under construction, saying the county had evidence the plant would violate noise standards. The Greeley Tribune reports the Colorado Court of Appeals ruled Wednesday the county commissioners improperly approved the Martin Marietta Materials plant near a residential neighborhood. The site is also near an organic farm and a planned wedding venue along U.S.