Down at Pawtuxet Village the snow meets the water and gives up quickly, but the hill streets above the cove hold it for days. McMahons Snow Removal works those grades, plowing driveways, breaking out the walks by hand where the truck cannot reach, and salting the pitch so nobody has to guess at it. March storms in Cranston are the heavy kind — wet, gray and stubborn — and they take a second pass. The reward is small and specific: a square driveway with the edges cut sharp against the banks. That is what this outfit is after, storm after storm.