Arizona UST Class C Operator Training
The Arizona UST Class C Operator Training consists of seven primary chapters. Each chapter is followed by a short quiz. Once a student has completed all chapters and quizzes, he or she will be directed to print out an Orientation Checklist. During the student’s orientation tour of the facility, the student and the manager or Class B Operator will check off each item on the list as it is identified and explained. When the Orientation Checklist has been completed, the student may print his or her UST Class C operator certificate.
UST’s are regulated in the United States to prevent release of petroleum and contamination of groundwater, soil and air. The 1984 Hazardous and Solid Waste Amendments to the Resource Conservation and Recovery Act (RCRA) required EPA to develop regulations for the underground storage of motor fuels to minimize and prevent environmental damage, by mandating owners and operators of UST systems to verify, maintain, and clean up sites damaged by petroleum contamination.
Many USTs were removed without replacement during the 10-year program. Many thousands of old underground tanks were replaced with newer tanks made of corrosion resistant materials (such as fiberglass, steel clad with a thick FRP shell, and well-coated steel with galvanic anodes) and others constructed as double walled tanks to form an interstice between two tank walls (a tank within a tank) which allowed for the detection of leaks from the inner or outer tank wall through monitoring of the interstice using vacuum, pressure or a liquid sensor probe. Piping was replaced during the same period with much of the new piping being double-wall construction and made of fiberglass or plastic materials.
Tank monitoring systems capable of detecting small leaks (must be capable of detecting a 0.1 gallons-per-hour with a probability of detection of 95% or greater and a probability of false alarm of 5% or less) were installed and other methods were adopted to alert the tank operator of leaks and potential leaks.
The greatest potential threat from a leaking UST is contamination of groundwater, the source of drinking water for nearly half of all Americans.
To proceed with lessons all quizzes must be passed with 70% or above score. There are three attempts for each quiz, in any circumstances if you failed quiz or exam in your all three attempts the course will be locked permanently and you will be forced by OSHA to complete the course in classroom.
Course final exam must be completed with and passed with 70%. There are three attempts for final exam, in any circumstances if you failed quiz or exam in your all three attempts the course will be locked permanently and you will be forced by OSHA to complete the course in classroom.
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