I ran accross this a while ago looking for some of the same stuff.
Octopush and Underwater Hockey Historical Records

Seems like a decent place to start. I think the contact for this is Cliff Underwood, he's still pretty active with BOA right? anyone over there confirm that? I know sometimes sites like this get started and then sit for years with no attention. It would be pretty cool to get as much info on there as possible, like team rosters at national and international level comps.

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An aquifer is a water bearing layer of rock or soil. Aquifers are separated by impermeable layers of rock or clay called an aquitard. Aquitard, however may sound a bit offensive to some, and therefore we will be changing the name to Aquachallenge.