RONQUILLO V. CA
195 SCRA 433
Plaintiff owned a titled lot adjacent to a dried up land of Estero Calubcub. Roldan occupied the titled lot. After a relocation survey, it was found out that petitioner was occupying a portion of land and the dried up land of Estero Calubcub.
The rules on alluviun don't apply to man-made or artificial accretions, nor to accretions to lands that adjoin canals or esteros or artificial drainage systems.