California Code of Regulations
Title 23 - Waters
Division 3 - State Water Resources Control Board and Regional Water Quality Control Boards
Chapter 26 - Wastewater Treatment Plant Classification, Operator Certification, and Contract Operator Registration
Article 3 - Grade Levels of Operator Certification
Section 3680.1 - Grade Levels of Operators at Privately Owned Wastewater Treatment Plants

(a) No later than two years from the effective date of this section, all persons at a privately owned wastewater treatment plant performing duties that are comparable to the duties of an operator at a wastewater treatment plant shall possess at least a valid Grade I certificate, a valid provisional operator certificate, or a valid operator-in-training certificate and meet the requirements for operators set forth in section 3680 and 3680.2.

(b) No later than two years from the effective date of this section, the owner of a privately owned wastewater treatment plant shall staff the wastewater treatment plant with operators of appropriate grade levels as prescribed in section 3680 or use a provisional operator in accordance with section 3680.2.

(c) Notwithstanding the provisions in this section, a certified operator, certified provisional operator, or certified operator-in-training working at a privately owned wastewater treatment plant shall comply with the requirements of this chapter.