HACIENDA HEIGHTS (CBSLA.com)  —  Authorities have accused a Los Altos High School chemistry teacher of having a sexual relationship with a 15-year-old student.

The Los Angeles County District Attorney’s Office said David Park, 37, of Chino Hills was involved with the unidentified student last year.

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Park was charged with three felony counts of lewd act upon a child.

Park is expected to be arraigned March 9 at the Los Angeles County Superior Court in Pomona. Bail was set at $150,000.

Prosecutors said at the time of the alleged relationship, Park worked at Los Altos High School in Hacienda Heights.

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Authorities were alerted by a school official that Park may have been having a sexual relationship with a 15-year-old girl, prosecutors said.

The criminal complaint alleges that the defendant had sexual interactions with the teen between September and November 2014.

If convicted as charged, the defendant faces a maximum sentence of four years and four months in state prison. Additionally, he would have to register as a sex offender for life.

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The case is being investigated by the Los Angeles County Sheriff’s Department.