August lies heavy on the Highlands hills, and the lawns above Sunset Lake go pale by the second dry week. MDA LANDSCAPING SERVICES LLC mows those slopes on the schedule the heat allows, raising the deck when the turf is stressed and dropping it again once the nights turn cool. Trimming follows every pass — along fence lines, around mailbox posts, down the long driveways Mountain Lakes is built on. Cleanups keep the beds open so what is planted there can breathe. It is steady work on uneven ground, and the reward is a hillside that stays green while the valley toward Parsippany browns out.