By Ashly McGlone

SAN LEANDRO -- Elementary school students waiting to run to new playground sets at recess on the first day of school Wednesday will be sorely disappointed.

The new structures at each of the district's eight campuses will be off limits for up to a month while construction of the rubber "fall zone" is finished, and at two sites, reinstalled, district officials said this week.

Superintendent Mike McLaughlin said district officials discovered last week that the contractor had incorrectly installed the rubber flooring under two of the play sets. Though what led to the flawed installment is unclear, McLaughlin said he is working to ensure the district doesn't pay for contractor error.

It will be at least three to four weeks before all of the playground structures are open.

"It's unfortunate that the right way to install it wasn't vetted out between the parties before we got to this point," McLaughlin told the school board Tuesday. "The principals have been great. They are going to come up with a plan to make sure the kids are safe and have enough activities to do."

Delays in the shipment of rubber floor tiles delayed the opening of the other elementary school structures.

"My 6 year old is going to be so disappointed," board member Jason Toro said. "She makes me go on a walk at least once a week to go see if they're done."

Contact Ashly McGlone at 510-293-2463. Follow her at Twitter.com/AshlyReports.