San Mateo: Wastewater Treatment Plant Operator-in-Training/Operator I/Operator II (20553546) 1. Describe in detail any wastewater treatment experience you may have. 2. List coursework related to water or wastewater treatment that you have completed or are currently taking. 3. List any Wastewater Treatment Plant Operator Certificate issued by the State of California that you possess. State the level of certification, license number and expiration date of the license. 4. Were you referred to this position by a City of San Mateo employee? If yes, please state the name of the employee who referred you.