Late August by the granite lock at Goat Hill, the grass has gone tough and sun-bleached, and that is the point in the year when lawns tended all summer finally show what the tending was for. Turf Technologies Inc spends those months on mowing, edging, trimming and the cleanups that keep turf thick through a Blackstone Valley heat wave. Fall shifts to leaves and a last low cut; then the equipment changes over and the same properties get plowed, shoveled and treated once winter takes the valley. This town asks for both halves — long green summers, and storms that come down out of a gray afternoon without much ceremony. The pride is in the full arc: grass worth walking barefoot on, and a lot scraped clean at the end of a long night.