Concrete tennis courts 3 Concrete handball oe Permanent back stop | a Sanding the beach and improving Potter's Lake for wwimming, both spring and fall, Improved and more often marking of tennis courts, better back stops, replacement of thin steel pipes. It costs $1.00 per day to sprinkle, mark, and roll tennis courts, per court, ee Grading and leveling of entire intremural field, whether done by unit or done in toto,