GOLF: GRF didn’t need to start buying EBMUD water until June golf in Mark Heptig’s 30-plus years with the golf program here. There was a 10-week stretch one year in the mid-1990s when weather issues kept the courses closed. Heptig credits pent-up demand among Rossmoor golfers for driving a huge rebound effect once the courses became steadily playable again in mid-April – a rebound,