Well, I've just looked up our airfield and I would say this is quite dangerous and should NOT be used! The information is dangerously out-of-date.
We sometimes get people calling for PPR who are quite clearly using an out-of-date airfield guide. Fortunately, we are able to put these people straight but so many don't bother looking up the latest info and/or calling. Some people like to cling to their dog-eared old guide from 1982 or maybe they're just too mean to shell out for a new one, at the cost of a couple of gallons of fuel.
We had an aircraft over the weekend making an approach to a runway that had its layout completely changed and finally went around.
So, my advice is, DON'T TAKE THIS INFO. Ideally, in my opinion, the site should be taken down in the interests of flight safety.
TOO