Welcome to Potrero Elementary School (Main) website. I, Chona N. Torreliza, Principal in behalf of the teaching and non-teaching personnel of this school, we welcome you to take a look of our website. The site gives you a glimpse of daily life at PES. You’ll see committed administrators, teachers and staff in providing a safe and nurturing learning environment to our pupils. Through this website, you will find information about our school like programs, events and activities. If you have any questions, please give us a call or visit our school.