I have found a sources for you, which I have added to the Knowledge Network Library, and it can be found here:
Success stories from Fairfield, CT: http://icma.org/en/i..
Here is an interesting news article from the Pittsburg, PA area, about how the public is being introduced to natural gas by giving funding to businesses to both purchase natural gas fleet vehicles, and at the same time constructing a public-use CNG refueling station (an interesting approach to building the first stations in an area): http://pittsburgh.bi..
Also, the US Department of Energy has a wealth of information on the subject beyond the examples above, so feel free to check out their news page, here: http://www.afdc.ener..
Finally, there is an organization called NGV, which provides global news for the Natural Gas Vehicle industry, and their website is constantly updated with country-, state-, and local-level news about CGN refueling stations, so perhaps you could find the information you need through them: http://www.ngvglobal..
I hope this helps!