This is the entry level class in the Maintenance Worker series. This class is distinguished from the Maintenance Worker II by the performance of the more routine tasks and duties assigned to positions within the series including less complex construction, maintenance and repair duties. Since this class is typically used as a training class, employees may have only limited or no directly related work experience. Advancement to the II level is based on demonstrated proficiency in performing the assigned functions, and is at the discretion of higher level supervisory or management staff. When assigned to water, advancement to the II level is based on appropriate certifications, demonstrated proficiency in performing the assigned functions and advancement is not based on time in grade but solely at the discretion of the Water Administration Director and the organizational needs of the department.