This is advanced, specialized, and skilled technical work in the maintenance and repair of treatment and pumping instrumentation ...
This is specialized and skilled technical work maintaining water and wastewater process equipment at the Cosme Water Plant in Nor...
This is skilled journeyman level work in the inspection, repair, and maintenance of electrical, hydraulic, mechanical, treatment ...
This is semi-skilled work in the operation and inspection of a potable water treatment plant or pumping station on a permanent or...