Down on the flat by the depot, the Waterbury branch train comes through Beacon Falls a few times a day and the sound rolls off the valley walls. Ground Response Lawn Care Inc. works this river bottom in the mid-morning of a July weekday, when the dew has burned off and the grass cuts clean instead of clumping. These lots run small and rectangular, fenced and close together, so the finish is all in the details — a level cut, tight trimming at the posts and the foundation, an edge along the sidewalk that makes the whole strip look drawn rather than grown. Heat settles hard in the valley by August, so the deck comes up a notch and the turf keeps its color instead of scorching. It's ordinary work done exactly, and the street shows it.