February on the Danvers River: the tide slides under a skin of ice at Obear Park and the wind has nothing at all to slow it down. Kelley Tree Service runs snow removal through those weeks in Beverly — plowing, shoveling drives and walkways, clearing steps and doorways, salting and sanding the corners where shade keeps ice around all day. The north-facing driveway is always the last to give up, so it earns the extra pass. Work like this gets judged in the ten seconds it takes somebody to walk from a door to a car without thinking about it. That's the standard, and it's a good one.