By seven on an August evening the light in Park Ridge turns the color of cut hay, and the oaks along the side streets throw shadows the whole way across the road. Chatham Irrigation keeps lawns through that heat: weekly mowing, string trimming around posts and fence lines, hedges shaped back, beds mulched, seed and feed once the nights finally cool. Bergen County summers ask a great deal of turf, and the answer is patience — the same yard, the same day, week after week, until the color holds. There is a particular satisfaction in leaving a property at dusk with the mower stripes still showing and the walks brushed off. It is a small thing that an entire street notices.