There are some good sources of information about Adak out on the intertubes.
For basic modern military info and the environmental issues resulting from military use go to
http://www.adakupdate.com/index.html
This is the offical website of the Restoration Advisory Board which governs the public process required in Superfund cleanup projects. Adak is not a superfund site since the Navy is taking action on it. The EPA almost listed it, but the majority of the issues are petroleum and the EPA doesn't like messing with that simple stuff.
One really cool thing about this site are the maps. They have taken the old hiking maps from back in the day and split them up to allow for easy PDF download. Back in the day we had to sit through a "blue card" recreation lecture before we were allowed to step off of a road. Adak can kill the unprepared quite easily so this was required by the Navy Search and Rescue folks. There are still a couple of bodies out there someplace of hikers/hunters that were never found. A lot of people think this is kind of silly, but you have to consider that the majority of the popluation of the base were city folk that joined the Navy to see the world and ended up on an island with no palm trees. There was one kid that my sister got to know that was too scared to leave his barracks at night. Why? He was from NY city and with no street lights he was so freaked out he just couldn't handle the darkness.
For more military history check out the Background Link on the righthand menu and then the Historical Guide that will provide more info about WWII and all those markers you were driving by.
What some folks don't know is that there were actually two military bases, or commands, out there. The Air Station, and the Security Group at the north end next to Clam Lagoon. NSGA also ran the radio tower systems up on the side of Moffet.
This is a link to a Navy CT veterans site where guys that were stationed at NSGA have posted their photos and stories. At the bottom is a link to a non military site which is pretty cool.
http://www.navycthistory.com/adak_intro.html
The 1981 photo collection by
Gerrit Gillespie is a good representation of what people did when not at work. Burnt stuff and drank booze. When not burning stuff and drinking people went hiking.
Prior to the fall of 1984 the main form of entertainment was drinking with your friends in "cabins". After the fall of 1984 cable TV had been installed in nearly all living quarters and the entire social atmosphere of the place changed for the worse. Now people staid home and drank alone. I was pretty happy to be going back to college by the spring of 85.
As you look at the various photos you will notice that the Adak of the 1970s does not look like the Adak of today. In 1984 and 1985 the Air Station commander didn't like all the "junk" sitting on his tundra and started cleaning it up. We had to register our cabins and show improvements made in order to keep them from being demolished. Only a few survived the cleanup. The cleanup was stopped when someone complained to some Historic Society that the WWII era structures were being demolished with out following the National Archieving procedures. The commander was in big trouble with the Pentagon and all the WWII vets. Those brass plaques around the road system was the remedy put in place to fix that guys blunder.
http://www.eubank-web.com/Donald/Aleutian/link.htm
This link has a lot of WWII info and stories about the guy's dad that spent some time in the Chain.