I found out yesterday that the Kensington Heights Citizen's Association has put together a website on all things Costco-related - a calendar of important county meetings, info on the potential hazards of gas stations, maps of the neighborhood in relation to the proposed gas station and more. The association has been quoted, both in the Gazette and on their own website, as supporting the Costco store, so their main concern is with the gas station.
I, on the other hand, am against the whole thing completely (see my earlier post). Regardless, their website looks like a good resource for information on the proposed development. Check it out at http://www.savekh.org/.