K.M.
The following are links for K+ programs.
From http://mandarinimmersionparents.blogspot.com/2008/03/us-m...
Chinese American International School
San Francisco, Calif.
(Private; grades K-8)
Chinese immersion program grades K-8. Oldest in U.S.
www.cais.org
College Park Elementary School
San Mateo, Calif.
(Public; grades Preschool-5)
Mandarin begins with immersion in preschool, then modified immersion in grades K-3rd and progresses to immersion or elective classes in 4th and 5th grades.
/www.smfc.k12.ca.us/level2/magnet/mandarinprograms.html
Meyerholz Elementary School
San Jose, Calif. (Cupertino Union School District)
(Public; grades K-8)
http://cupertino.ca.campusgrid.net/home/Links+to+our+Scho...
Sam Lawson Middle School
Cupertino, Calif.
(public, middle school)
Continuation of Myerholtz Elementary School immersion program, within the Cupertino School district.
http://cupertino.ca.campusgrid.net/home/Links+to+our+Scho...
Stonebrae Elementary
Hayward, Calif.
50% English, 50% Mandarin. Kindergarten class began 2007-2008
http://husd.k12.ca.us/index.php?option=com_content&ta...
www.stonebraepta.org
International School of the Peninsula
(Private; grades K-8)
Palo Alto, CA
www.istp.org/
Ohlone Elementary School
(public, K, 1 begin 2008)
Palo Alto, Calif.
www.pausd.org/parents/programs/downloads/MandarinImmersio...
Starr King Elementary School
(Public; grades K-1, adding a year each year through 5)
San Francisco, Calif.
www.starrkingschool.org/
http://mandarinimmersionparents.blogspot.com/
Jose Ortega Elementary School
San Francisco, Calif.
Public, K, adding a year each year through 5
http://joseortegaschool.org/mandarin-immersion
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Also, see
http://www.acesf.org/friends.htm#mandarinprogoutsidesf