Omsd/Mariposa Elementary School
Omsd/Mariposa Elementary School is a licensed child care center in Ontario, CA, licensed for up to 24 children and serving preschool-age children. It has held its California license since 2015. Since February 2021, state licensing staff have inspected it 4 times. The state issued 2 citations, 0 of them Type A (the most serious). None came in the last 12 months. Measured by weighted citations per inspection, it is tied for #14 of 38 centers in Ontario and has more citations per inspection than 46% of California licensed centers.
Inspection record
Every state visit
What inspectors cited most
Citations, newest first
Based on observation and record review, the licensee did not comply with the section cited above. This poses/posed a potential health, safety or personal rights risk to persons in care.
Based on record review, the licensee did not comply with the section cited above. Although staff had their mandated reporter training completed, it had expired in 04/2023. This poses/posed a potential health, safety or personal rights risk to persons in care.
About this center
Common questions
Does Omsd/Mariposa Elementary School take infants?
Not under this license, which covers preschool-age children.
Has Omsd/Mariposa Elementary School had any serious violations?
No Type A citations since 2021. It has 2 Type B citations, listed above.
How does Omsd/Mariposa Elementary School compare with other daycares in Ontario?
It is tied for #14 of 38 centers in Ontario by weighted citations per inspection, and has more citations per inspection than 46% of California licensed centers with enough inspection history to compare.
When was Omsd/Mariposa Elementary School last inspected?
Sep 2, 2026. No citations were issued during that visit.
How much does Omsd/Mariposa Elementary School cost?
California does not publish individual centers’ prices, so ask Omsd/Mariposa Elementary School for its current tuition. For comparison, the median full-time price at licensed centers in San Bernardino County, which includes Ontario, was $835 a month for preschoolers (about $1,050 today) in the state’s 2021 Regional Market Rate Survey.
Who runs Omsd/Mariposa Elementary School?
The licensee is Ontario-montclair School District, and the administrator listed with the state is Arnie Ayala.
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Citations are quoted from California Department of Social Services inspection and complaint reports. Type A citations are the state’s most serious category (an immediate risk to children’s health, safety or personal rights); Type B citations are a potential risk. A citation is a finding about one rule, not a judgment about a center overall. Complaint allegations appear here only when the state substantiated them.
To read the full state reports, search facility number 364843377 on the California Care Facility Search. Data refreshed Oct 2, 2026.