Hey niece,
I am sorry that your family is going through this. I want to welcome you to SR. There is a lot of love and support here for families of alcoholics. Please feel free to browse the forum, post or reply. I hope that you find something that will help you.
As far as treatment, I do not know much about any particular facilities. I just know that if someone is seeking recovery, there are meetings in most areas nightly for recovery. Narcotics anonymous and Alcoholics Anonymous both have websites that can help you locate a meeting. This is a link to some of the resources that SR has gathered;
http://www.soberrecovery.com/forums/local_links.php
I wish you and your family the best. Please make sure that you take care of yourself too. Families are affected by alcoholism and addiction too. We need to heal. We support each other in that process through this forum and in the Al-Anon and Nar-Anon programs. To find an Al-Anon meeting in your area,
http://www.al-anon-alateen.org/english.html and select "How to locate a meeting." And come back here any time. Hugs, Magic