A professional who irrigates field and row crops, using any of following gravity-flow methods. Respnsibilities include:

• (1) Lifts gate in side of flooded irrigation ditch, permitting water to flow into bordered section of field.
• Shovels and packs dirt in low spots of embankment or cuts trenches in high areas to direct water flow.
• Closes gate in ditch when bordered section is flooded.
• (2) Removes plugs from portholes in pipes or wooden tunnels set in embankment at end of rows and observes water flowing through portholes.
• Removes obstructions from rows and builds up edges of rows with dirt.
• Plugs porthole as each row is filled.
• (3) Opens gate or connects standpipe (vertical pipe) to underground pipe system that releases waterflow into reservoir or ditch.
• Siphons water from flooded reservoir or gate or connects standpipe (vertical pipe) to underground pipe system that releases waterflow into reservoir or ditch.
• Shovels or hoes soil to clear ditches and furrows and build embankments that channel water in assigned area but avoid overflow into areas that could be damaged by water.
• May mix and apply cement solution to fill holes and cracks in concrete-lined pipes, ditches, and spillways, and make minor repairs to metal, concrete, and wooden frameworks in pipe and ditch valves and gates.
• May carry, lay out, and join portable irrigation-pipe sections to link up main ditch or pipe with field.