Enrollment
The 2025-2026 school year begins on Tuesday, August 12th 2025.
***Enrollments will not take place during Summer Check-in days or the first day of school, so please plan accordingly***
Enrollment Hours
Summer Break
(June 06 to August 12, 2025)
Open: Monday through Thursday 8:00am to 2:00pm,
except for the following dates:
Closed Fridays
Closed June 19th
Closed July 7th - July 11th
Closed August 5th - 6th (Summer Check-in)
Closed August 11th - 12th (Make-up Check-in & 1st Day Back)
Beginning August 13th
Regular School Days (M, Tu, Th, Fr)
7:30am to 11:30am & 12:30pm to 3:00pm
closed for lunch 11:30 to 12:30
Late-Start Wednesdays
7:30am to 12:15pm & 1:15pm to 3:00pm
closed for lunch 12:15 to 1:15
Minimum Days
7:30am to 2:00pm
Non-student Days
By appointment, email [email protected]
Steps to complete enrollment in Arroyo Seco Junior High:
1. Enrollment. Enrollments are done in person. Please refer to "How to Enroll" below for the enrollment procedure. Enrollments will not take place during Summer Check-in days or the first day of school, so please plan accordingly.
2. Registration. You must be enrolled before you can complete registration. Registration is completed online through Infinite Campus. Online Registration (OLR) is where you will verify/update your contact information and add emergency contacts. OLR must be completed before students can participate in Summer Check-in. Your child must be enrolled before you can complete OLR.
3. Check-in. You must be enrolled before you can complete summer check-in. Students will take their ID photos, receive textbooks, and purchase PE clothes. All new students must meet vaccination requirements in order to proceed through the check-in.
- 8th grade Summer Check-in will take place on Tuesday, August 5th
- 7th grade Summer Check-in will take place on Wednesday, August 6th
- Make-up (7th & 8th) Summer Check-in will take place on Monday, August 11th
HOW TO ENROLL
Enrollments will not take place during Summer Check-in days or the first day of school, so please plan accordingly
1. Determine School of Residence
Students in the William S. Hart Union High School District are expected to attend their school of residence based on our attendance boundaries. Type your address into the SchoolSite Locator to determine your school of residence.
2. Gather Required Documents
The William S. Hart Union High School District requires the following to enroll a student:
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Proof of residence within the attendance boundaries of the school you are enrolling into. Acceptable documentation can be found on the Hart District website's Enrollment page;
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Birth Certificate for the child;
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Up-to-date Immunization records. Please review the required immunizations on our Vaccination Requirements page;
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Withdrawal Form/Grades from the child's previous school;
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The child's most recent IEP or 504, if applicable;
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Caregiver/Guardianship forms, if applicable
3. Enroll In Person
Enrollments are done in person. A parent or legal guardian must come in to the office and complete the enrollment forms once all of the required documentation is obtained. Please refer to the enrollment hours listed on this page.
2025/26 INCOMING 7TH GRADE STUDENTS
INTRA DISTRICT TRANSFERS (IDTs)