an individual must submit a completed application and a registration fee of $100 (BPC § 7730.1)
to the Bureau's Licensing Unit at (916) 574-7870.
"Scattering" at sea cannot take place within 500 yards of the shoreline, and
includes the inland navigable waters of the state. Scattering at sea does not
include lakes and streams, nor does it include scattering from a bridge or pier
(HSC § 7117(c)). "
Cremated Remains Disposer Booklet: Complying with California Law 에 관한 정보
https://www.cfb.ca.gov/licensee/crd_booklet.pdf 링크 참조하세요.
여러 Cremation service 에 연락하여 자세한 정보 받으시는 것도 좋을 듯하네요