Principles and practices of wastewater and stormwater technology, i.e. the pretreatment of industrial and commercial waste and accepted stormwater management techniques; Sampling methods, laboratory testing, and flow measurement techniques related to wastewater and stormwater; Applicable federal, state, and local laws, ordinances, codes, and regulations related to wastewater and/or storm water; Record keeping principles and practices; Safe work methods and safety regulations pertaining to the work; Basic supervisory principles and practices. Pattern 1: I possess an Associate of Arts degree or completion of sixty semester units or equivalent quarter hours from an accredited college or university with major course work in wastewater technology, chemical engineering, chemistry, physical sciences, or closely related field AND three years (3) of experience in an environmental field, i.e. analyzing wastewater, industrial discharges in a laboratory setting, operating a wastewater treatment plant or comparable work in a NPDES permitted storm water management program.