The Paulins Kill begins its run in the meadows near Newton and gathers itself westward, and the ground along it grows grass in a hurry once May turns warm. Arechiga Landscaping keeps up with it — mowing on a steady cycle, trimming the awkward slopes and streambank corners, edging so the turf stops exactly where it should. When the valley goes cold and white, the same attention moves to the driveway: plowing, clearing a path to the door, spreading salt on the shaded stretch that never quite thaws. There is pride in getting somebody out to work before the roads have even been touched. Fall cleanups close the year, leaves gathered and gone.