LAKEWOOD — The Colorado Mills shopping mall, badly damaged by hail, will probably not be fully reopened for six months, and that has city officials worried about sales tax collections and the fate of thousands of workers. The impact could be a $2 million hit in sales tax collections after the regional shopping mall was badly damaged last week during a particularly fearsome hailstorm. Lakewood finance director Larry Dorr told The Denver Post Wednesday that the city gets an average of $350,000 per month in sales tax from the mall, not counting proceeds from the Super Target and several other adjacent businesses that are still operating at the site. With the reopening of the 1.1 million-square-foot mall not likely to occur until November — a timeline a city spokeswoman confirmed Wednesday — Lakewood could see a loss of $2.1 million over the next half-year.