â The presence of marijuana is detected by a drug test through the presence of the active chemical THC or Tetrahydrocannabinol. Technically, what is detected is known as THC-COOH (11-nor-delta-9-tetrahydrocannabinol-9-carboxylic acid).
1 Average Riding Instructor Salary: Independent riding instructors typically charge an hourly rate for services but on average earn about $35,000 to $39,000 per year.
Generally an instructor will charge from $25 to $40 per hour for a group lesson, and $45 to $60 per hour for a private lesson. The facility that hosts the lessons may be entitled to a portion of that fee, especially if they provide lesson horses for the students to ride.