FAIR OAKS (CBS SF) — The San Mateo County Sheriff’s Office on Friday afternoon announced that a chemical found near a school in North Fair Oaks has been determined to be non-hazardous.

The sheriff’s office and Menlo Park Fire were investigating the discovery of the chemical late Friday morning.

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The chemical was found near Everest Public High School in North Fair Oaks.

The San Mateo County Sheriff’s Twitter account posted about the incident at about 11:10 a.m.

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The potentially hazardous material at the school was found by a San Mateo County Sheriff’s Office deputy Friday morning while walking in the area.

At 12:40 p.m., the sheriff’s Twitter account posted that San Mateo County HazMat team tested a sample of the material. Authorities are waiting for test results.

About an hour later, the sheriff’s department said that the chemical was found to be non-hazardous.

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The shelter-in-place order for residents on the 400 block of 4th and 5th avenues has been lifted.