By the third week of July the Pioneer Valley turns brassy, and East Longmeadow's sandy ground gives up its moisture faster than most of the neighborhood. Lucky Lawn Sprinkler Company works that problem for a living — irrigation startups in spring, head adjustments and coverage checks through the heat, timer settings matched to the weather rather than the calendar, and shutdowns before the first hard freeze. Water laid down evenly and early is the whole difference between green in August and gone. There is something quietly pleasing about walking a yard at six in the morning and watching every zone throw its arc exactly where it should. Lawns from the center of town out toward the Connecticut line stay green because somebody bothered.