It’s been more than five years since the Larimer County commissioners said no to Thornton burying miles of pipe in the county to transport water from the Cache la Poudre River. Now the northern Denver suburb is back in the same hearing room. And it has the same basic request: Let us move the water we own to our fast-growing and thirsty community. Larimer County’s board of commissioners will decide the fate of the 70-mile, half-billion-dollar infrastructure project as soon as Monday.