I'm pretty sure that the nuclear power plant (actually a research-focused fast breeder reactor) was closed down 5-10 years ago. You do have to look out for then odd radioactive particle on the beaches, however....
Also, if you read the brochure carefully you'll find that while the golf course has been leased out to Reay Golf Club for a "peppercorn" rent, as Laird you have the "droit de seigneur" of being able to show up on the first tee, at anytime (even during the tee off of the final of the club championship, I presume), and tell the peasants to step aside and let you play.