Under limited supervision performs skilled craft mechanical and operational craftwork at the journeyman level in the operation, maintenance, installation, repair, and troubleshooting of water process equipment and components of water treatment plants. Work assignments are subject to established procedures, practices, or well-defined policies. Work requires knowledge of equipment operation, maintenance, regulations, policies, methods, standards, and procedures governing operation and maintenance of water process equipment. Work is performed both indoors and outdoors, where there are some risks and hazards. Solves complex problems within established parameters and identifies and recommends responses to new and unusual circumstances. Contacts require courtesy, tact, and effectiveness in dealing with others to request or provide information, ask questions or obtain clarification. Work is reviewed on completion for quality, timeliness, and adherence to methods, standards, and policies. Employees in this class may be required to work evenings, weekends, holidays and rotating shifts.