A ccdus.ca website is number 1 in Google for "Drug Rehab In Kelowna"

I work in the detox business … I've noticed that lately, a website "ccdus.ca" is the # 1 Google for Drug Rehab in Kelowna, and NOT listed in other search engines (ie Bing, etc.). ..) … This website ccdus.ca is also # 1 in Google for EVERY city in Canada. This field is only one year old ….. All searches with "Drug Rehab" link to ONE page of the site, and there are no keywords associated with the searched city (Kelowna, Red Deer, Camrose. …..) …… My only conclusion that they do something BlackHat (cloaking, keyword stuffing …..) etc …..

Any help would be appreciated ….
Thank you