EL MONTE (CBSLA.com) — A science teacher at Arroyo High School was faces charges Wednesday of having a sexual relationship with a student for the past six months.

Richard Paul Daniels, 55, of Rancho Cucamonga was arrested Tuesday and is scheduled to be arraigned Thursday, El Monte police said.

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Daniels, who is described on Arroyo High School’s website as an Earth science instructor, football coach and chair of the science department,  is being held on $1.75 million bail.

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An El Monte Police School Resource Officer was notified Tuesday by Arroyo High School Administration of an allegation of inappropriate contact between a female student and a male teacher, police officials said. An investigation determined that over the last six months, the teacher – identified as Richard Paul Daniels – had a sexual relationship with the student, according to police.

The age of the student, who lives in El Monte, was not disclosed.

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Anyone with information relevant to the case can call police at (626) 580-2109 or via email at tips@empd.org.