The Renton School District is developing a system-wide plan to make sure students get on the right school bus after the school day.

The effort comes after two Benson Hill Elementary kindergarteners were put on the wrong bus and dropped off about a mile and a half from their intended stop on Friday afternoon, Sept. 16.

“This was a failure on the part of the adults in the process both at the school and on the bus,” said Randy Matheson, Renton School District spokesperson.

The students, a 5-year-old boy and girl, were put on the wrong school bus by Benson Hill staff and then let off the bus about a mile and a half from the daycare they attend, Matheson said.

Spring Glen Daycare staff alerted the school when the children did not get off the bus. The school then called the transportation office, classmates of the students and alerted the police. After a day-care worker had left her shift, she spotted the children walking on the street and returned them to the daycare.

The bus driver in the incident was a substitute, who drove for the district some last year.

“It’s not an excuse that this person was a substitute,” said Matheson, who blamed all the adults involved and stated the bus driver would likely not be called for another assignment with the district.

In response to the incident, the Benson Hill Elementary principal created a color-coded system by Saturday afternoon for getting students on the right bus, Matheson said.

Right now the district doesn’t have a system-wide plan to make sure children are placed on the right school bus, but officials hope to present a system-wide plan to bus drivers soon, he said.

Superintendent Mary Alice Heuschel called the parents of the children Tuesday to assure them that they would put a plan in place.